阅读说明：本技术 温度检测仪的保护装置 (Protection device of temperature detector ) 是由 周恒� 黄兵 于 2020-06-19 设计创作，主要内容包括：一种温度检测仪的保护装置,属于冶金行业中温度检测领域,包括外保护箱以及内保护箱,外保护箱具有内部容室以及外保护箱冷却介质仓,内保护箱插装于内部容室中,内保护箱具有设备舱以及内保护箱冷却介质仓,在内保护箱的出线端设置安装窗口,温度检测仪从安装窗口装入到设备舱内,温度传感器从内保护箱中穿过外保护箱并伸出到外保护箱的外侧,由外保护箱冷却介质仓以及内保护箱冷却介质仓共同对温度检测仪以及温度传感器的冷端进行冷却、防护,避免出现热电偶补偿异常的问题出现,提高了监测数据的可信度。本发明由约束架对温度传感器的安装进行约束,可以提高温度传感器安装的牢靠程度,同时可以避免温度传感器安装杂乱。(The utility model provides a protection device of temperature detector, belong to the temperature detection field in the metallurgical industry, including outer guard box and interior guard box, outer guard box has inside and holds room and outer guard box coolant medium storehouse, interior guard box cartridge holds the room in inside, interior guard box has equipment cabin and interior guard box coolant medium storehouse, the leading-out terminal of interior guard box sets up the installation window, temperature detector packs into the equipment cabin from the installation window, temperature sensor passes outer guard box and stretches out the outside of outer guard box in the interior guard box, cool off temperature detector and temperature sensor's cold junction jointly by outer guard box coolant medium storehouse and interior guard box coolant medium storehouse, the protection, avoid appearing the unusual problem of thermocouple compensation, the credibility of monitoring data has been improved. According to the invention, the installation of the temperature sensor is restrained by the restraining frame, so that the firmness of the installation of the temperature sensor can be improved, and the messy installation of the temperature sensor can be avoided.)

1. The utility model provides a protection device of temperature detector for provide the protection when detecting the temperature to temperature detector, with temperature detector is connected with temperature sensor, its characterized in that includes:

the cooling device comprises an outer protection box (1), an inner containing chamber (2) and an outer protection box cooling medium bin (3), wherein the outer protection box cooling medium bin surrounds the inner containing chamber, and a plug-in window communicated with the inner containing chamber is formed in one side wall of the outer protection box;

inner protection case (5), the one end of inner protection case is the leading-out terminal, the leading-out terminal of inner protection case can certainly the cartridge window inserts extremely in the room is held to inside, the other end of inner protection case is the blind end, the blind end can with cartridge window sealing connection, the inner protection case has and is used for placing temperature detector's equipment cabin (6), the inner protection case has inner protection case coolant medium storehouse (7), inner protection case coolant medium storehouse surrounds the equipment cabin, the leading-out terminal be provided with the communicating installation window in equipment cabin, the inner protection case with have between the outer protection case and be used for temperature sensor stretches out to the passageway outside the outer protection case.

2. The protection device of the temperature detector according to claim 1,

the temperature sensor is arranged outside the upper surface of the inner protection box, and an inner constraint frame (8) for constraining the temperature sensor is arranged on the upper surface of the inner protection box;

preferably, an outer restraint frame (4) for restraining the temperature sensor is arranged on the outer side wall of the outer protection box.

3. The protection device of the temperature detector according to claim 2,

the upper surface of the inner protection box is an inclined surface, and one side of the upper surface of the inner protection box, which is positioned at the closed end, is higher than one side of the upper surface of the inner protection box, which is positioned at the wire outlet end;

the upper inner side surface of the inner accommodating chamber is an inclined surface, and one side of the upper inner side surface of the inner accommodating chamber, which corresponds to the closed end, is higher than one side of the upper inner side surface of the inner accommodating chamber, which corresponds to the wire outlet end;

the slope of the upper surface of the inner protection box is k1, the slope of the upper inner side surface of the inner containing chamber is k2, and k1 is not equal to k 2;

the space between the upper surface of the inner protection box and the upper inner side surface of the inner accommodating chamber is the channel, a part of the temperature sensor is positioned in the channel, and the space in the channel except the temperature sensor is filled with heat insulation materials,

preferably, the insulating material has a stretch property;

preferably, k1 > k 2.

4. The protection device of the temperature detector according to claim 1,

an equipment bin temperature measuring point inserting hole (9) is formed in the outer side wall of the inner protection box and extends into the equipment bin;

preferably, the equipment bin temperature measuring point inserting hole is formed in the wire outlet end and is a horizontal hole.

5. The protection device of the temperature detector according to claim 1,

an outer protection box temperature measuring point inserting hole (10) is formed in the outer side wall of the outer protection box and extends into the outer protection box cooling medium bin;

preferably, the outer protection box temperature measuring point insertion hole is formed in the upper side face of the outer protection box, and the outer protection box temperature measuring point insertion hole is a vertical hole.

6. The protection device of the temperature detector according to claim 1,

the inner protection box is positioned at the lower part of the outer protection box, and the equipment cabin is positioned at the lower part of the inner protection box so as to prolong the protection time of the temperature detector under a cooling medium;

preferably, a water filling port (11) is formed in the outer side wall of the outer protection box, and a cover rod (12) is arranged in the water filling port;

preferably, the water injection port is provided on an upper side surface of the outer protective case.

7. The protection device of the temperature detector according to claim 1,

a cooling medium evaporation port (13) and a movable handle (14) are formed in the outer side wall of the outer protection box, and the cooling medium evaporation port is communicated with the cooling medium bin of the outer protection box;

a handle (15) is arranged on the outer side wall of the inner protection box and is arranged on the closed end;

preferably, the cooling medium evaporation port is arranged on the upper side surface of the outer protection box;

preferably, two opposite outer side walls of the inner protection box are provided with grooves, and the two movable handles are arranged in the grooves.

8. The protection device of the temperature detector according to claim 1,

a sealing flange (16) is arranged at the closed end of the inner protection box, the sealing flange is arranged on the outer edge of the closed end, and the sealing flange can abut against the side wall of the outer protection box surrounding the insertion window;

preferably, a threaded column is arranged on the outer protection box, the threaded column is close to the insertion window, a locking part is in threaded fit with the threaded column, and when the sealing flange abuts against the side wall of the outer protection box, the sealing flange is pressed between the locking part and the side wall of the outer protection box.

9. The protection device of the temperature detector according to claim 1,

a cooling medium injection elbow (17) is arranged at the closed end of the inner protection box, one end of the cooling medium injection elbow is communicated with the cooling medium bin of the inner protection box, and the other end of the cooling medium injection elbow is higher than the highest point of the cooling medium bin of the inner protection box;

preferably, the cooling medium injection elbow pipes are arranged in two numbers, and the two cooling medium injection elbow pipes are arranged at the same height.

10. The protection device of the temperature detector according to any one of claims 1 to 9,

a temperature sensor plug is mounted on the wire outlet end of the inner protection box, the temperature sensor plug is connected with one end of a compensation wire, the other end of the compensation wire is connected with one end of the temperature sensor, the other end of the temperature sensor extends to the outside of the protection device for detecting temperature, and the temperature sensor plug and the compensation wire are both positioned in the inner chamber;

preferably, the length of the temperature sensor positioned in the inner chamber is more than or equal to 200 mm.

Technical Field

The invention relates to the technical field of temperature detection in the metallurgical industry, in particular to a protection device of a temperature detector.

Background

In the metallurgy industry, temperature uniformity detection needs to be carried out on a continuous heating furnace periodically due to the requirement on heating process management, and a known method for protecting a temperature detector is to arrange the temperature detector in a protection device, so that the protection device protects the temperature detector in the process of passing through a furnace body along with the furnace.

In a heating furnace, materials to be heated in the furnace are generally in a moving state, and technologically, not only the surface temperature of the materials but also the temperature distribution inside the materials need to be known. The temperature detector is used as a detection device for temperature uniformity, needs to enter the stepping heating furnace synchronously with a heating material (generally, steel billets) to be heated, can collect the surface layer and the internal temperature of the heating material and transmit the collected data in real time, so that workers can know the real-time heating temperature and the section temperature difference of the steel billets and the temperature difference of the length direction of the steel billets, and scientific data basis is provided for the production acceptance of the heating furnace, the establishment and verification of a mathematical model and the datamation of the process of the heating furnace.

In the prior art, when a continuous heating furnace detects temperature uniformity, a temperature detector needs to take protective measures when in use, and in general, the temperature detector is placed in a built-in equipment cabin of a protection box and protected in a mode of filling heat insulation fibers after a temperature sensor is installed.

The above-mentioned protection measures have certain technical drawbacks, such as:

1. in the known protective box structure, the protective box structure is divided into a single protective box structure and a multi-protective box nested structure. In a single guard box configuration, the temperature detector is often placed in the semi-open interior compartment of the outer guard box; in the multilayer protection box nested structure, the temperature detector is arranged in the inner protection box which is assembled with the outer protection box, and the convenience of the wiring of the sensor and the safety of equipment cannot be achieved due to the consideration of the connection requirement of the temperature detector and the temperature sensor.

In the single protection box of the open type inner cabin, the outlet area of the temperature detector directly faces the heat insulation fiber filled outside the single protection box, so under the double effects of pulling in the installation of the temperature sensor, breakage of the heat insulation material fiber in a high-temperature environment and increase of porosity, high-temperature furnace gas can intrude into the inner cabin of the single protection box along the collapsed heat insulation fiber and a sensor gap, and the protection failure is caused.

In addition, in the structure that possesses interior guard box, often not enough to sensor wiring convenience consideration, all do not carry out good arrangement, restraint and protection to the temperature sensor cold junction. When the number of detection sensors is large, the installation of the sensors is difficult, and even the situation that the external protection box cannot be completely assembled in place occurs. Meanwhile, in the installation operation before the temperature uniformity detection, when the external protection box is moved or the temperature sensor is improperly pulled in the installation process, the installed sensor can be separated from a specified position under the condition of undetected movement, and the problem of high-temperature furnace gas invasion in the detection is caused.

In the two configurations, the common features are: the temperature sensor is a forward outlet design, namely, the wiring interface of the temperature detector faces the outside of the protection box, and the structural design causes that the distance of the temperature sensor penetrating into the equipment bin is short. In the above-mentioned two kinds of situations that can be invaded by high temperature furnace gas, when equipment cabin cold junction temperature exceeded 100 ℃, all can lead to the thermocouple compensation of different degrees unusual, and then the authenticity of influence detection record data still can lead to temperature detector and temperature sensor's damage under the severe condition.

2. The known protection box for the temperature detector is not provided with a temperature measuring point in the cabin and a temperature measuring point in the external protection box in the structural design, and is not provided with a function of checking the residual quantity of the cooling medium. Due to the above-mentioned structural defects, the reliability of the protective box is still to be improved.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a protection device for a detection device for temperature uniformity detection, which has more convenient installation conditions and tight device protection function, and at the same time, the protection device for a detection device can provide reliable installation for a parameter acquisition device for improving the capability of a temperature uniformity detection process.

In order to achieve the above purpose, the invention provides the following technical scheme:

the invention provides a protection device of a temperature detector, which is used for protecting the temperature detector when detecting temperature and is connected with a temperature sensor.

This temperature detector's protection device includes:

the cooling device comprises an outer protection box, a cooling device and a control device, wherein the outer protection box is provided with an inner accommodating chamber and an outer protection box cooling medium bin, the outer protection box cooling medium bin surrounds the inner accommodating chamber, and a plug-in window communicated with the inner accommodating chamber is formed in one side wall of the outer protection box;

the inner protection box is characterized in that one end of the inner protection box is a wire outlet end, the wire outlet end of the inner protection box can be inserted into the inner accommodating chamber through the plug-in mounting window, the other end of the inner protection box is a closed end, the closed end can be in sealing connection with the plug-in mounting window, the inner protection box is provided with an equipment cabin for placing the temperature detector, the inner protection box is provided with an inner protection box cooling medium cabin, the inner protection box cooling medium cabin surrounds the equipment cabin, the wire outlet end is provided with an installation window communicated with the equipment cabin, and a channel used for extending the temperature sensor to the outside of the outer protection box is arranged between the inner protection box and the outer protection box.

Preferably, in the protection device for a temperature detector provided by the present invention, the temperature sensor is arranged outside the upper surface of the inner protection box, and an inner restraint frame for restraining the temperature sensor is disposed on the upper surface of the inner protection box.

Preferably, in the protection device for a temperature detector provided by the present invention, an outer constraint frame for constraining the temperature sensor is disposed on an outer side wall of the outer protection box.

Preferably, in the protection device for a temperature detector provided by the present invention, an upper surface of the inner protection box is an inclined surface, and one side of the upper surface of the inner protection box, which is located at the closed end, is higher than one side of the upper surface of the inner protection box, which is located at the outlet end; the upper inner side surface of the inner accommodating chamber is an inclined surface, and one side of the upper inner side surface of the inner accommodating chamber, which corresponds to the closed end, is higher than one side of the upper inner side surface of the inner accommodating chamber, which corresponds to the wire outlet end; the slope of the upper surface of the inner protection box is k1, the slope of the upper inner side surface of the inner containing chamber is k2, and k1 is not equal to k 2; the space between the upper surface of the inner protection box and the upper inner side surface of the inner accommodating chamber is the channel, a part of the temperature sensor is positioned in the channel, and the space in the channel except the temperature sensor is filled with heat insulation materials.

Preferably, the insulating material has a stretch property.

Preferably, k1 > k 2.

Preferably, in the protection device of the temperature detector provided by the present invention, an equipment compartment temperature measuring point insertion hole is formed in an outer side wall of the inner protection box, and the equipment compartment temperature measuring point insertion hole extends into the equipment compartment.

Preferably, the equipment bin temperature measuring point inserting hole is formed in the wire outlet end and is a horizontal hole.

Preferably, in the protection device for a temperature detector provided by the present invention, an outer side wall of the outer protection box is provided with an outer protection box temperature measurement point insertion hole, and the outer protection box temperature measurement point insertion hole extends into the outer protection box cooling medium cabin.

Preferably, the outer protection box temperature measuring point insertion hole is formed in the upper side face of the outer protection box, and the outer protection box temperature measuring point insertion hole is a vertical hole.

Preferably, in the protection device for a temperature detector provided by the invention, the inner protection box is located at the lower part of the outer protection box, and the equipment cabin is located at the lower part of the inner protection box, so that the protection time of the temperature detector under a cooling medium is prolonged.

Preferably, a water filling port is formed in the outer side wall of the outer protection box, and a port cover stock rod is arranged in the water filling port.

Preferably, the water injection port is provided on an upper side surface of the outer protective case.

Preferably, in the protection device of the temperature detector provided by the invention, a cooling medium evaporation port and a movable handle are arranged on the outer side wall of the outer protection box, and the cooling medium evaporation port is communicated with the cooling medium bin of the outer protection box; and a handle is arranged on the outer side wall of the inner protection box and is arranged on the closed end.

Preferably, the cooling medium evaporation port is provided on an upper side surface of the outer protective box.

Preferably, two opposite outer side walls of the inner protection box are provided with grooves, and the two movable handles are arranged in the grooves.

Preferably, in the protection device for a temperature detector provided by the present invention, a sealing flange is disposed at a closed end of the inner protection box, the sealing flange is disposed on an outer edge of the closed end, and the sealing flange can abut against a side wall of the outer protection box surrounding the insertion window.

Preferably, a threaded column is arranged on the outer protection box, the threaded column is close to the insertion window, a locking part is in threaded fit with the threaded column, and when the sealing flange abuts against the side wall of the outer protection box, the sealing flange is pressed between the locking part and the side wall of the outer protection box.

Preferably, in the protection device of the temperature detector provided by the present invention, a cooling medium injection elbow is disposed at a closed end of the inner protection box, one end of the cooling medium injection elbow is communicated with the cooling medium bin of the inner protection box, and the other end of the cooling medium injection elbow is higher than the highest point of the cooling medium bin of the inner protection box.

Preferably, the cooling medium injection elbow pipes are arranged in two numbers, and the two cooling medium injection elbow pipes are arranged at the same height.

Preferably, in the protection device of the temperature detector provided by the present invention, a temperature sensor plug is installed on the outgoing line end of the inner protection box, the temperature sensor plug is connected to one end of a compensation wire, the other end of the compensation wire is connected to one end of the temperature sensor, the other end of the temperature sensor extends to the outside of the protection device for detecting temperature, and the temperature sensor plug and the compensation wire are both located in the inner chamber.

Preferably, the length of the temperature sensor positioned in the inner chamber is more than or equal to 200 mm.

Compared with the prior art, the method has the following advantages:

the invention provides a protection device of a temperature detector. The protection device of the temperature detector comprises an outer protection box and an inner protection box, wherein the outer protection box is provided with an inner accommodating chamber and an outer protection box cooling medium bin surrounding the inner accommodating chamber, the inner protection box is inserted into the inner accommodating chamber, the inner protection box is provided with an equipment compartment and an inner protection box cooling medium bin, a mounting window is arranged at a wire outlet end of the inner protection box, the temperature detector is installed into the equipment compartment from the mounting window, a temperature sensor penetrates through the outer protection box from the inner protection box and extends out of the outer protection box in a circuitous and circuitous mode, the outer protection box cooling medium bin and the inner protection box cooling medium bin are used for cooling and protecting the temperature detector and a cold end of the temperature sensor together, the problem of abnormal thermocouple compensation is avoided, and the reliability of monitoring data is greatly improved. In addition, the outer protection box and the inner protection box are both provided with the restraint frames, and the restraint frames restrain the installation of the temperature sensors, so that the firmness degree of the installation of the temperature sensors can be improved, and the messy installation of the temperature sensors can be avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:

FIG. 1 is a schematic structural diagram of an inner protection box in an embodiment of the present invention;

FIG. 2 is a top view of an inner protective case in an embodiment of the present invention;

FIG. 3 is a rear view of an inner protective case in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an inner protection box provided with a temperature detector and a temperature sensor according to an embodiment of the present invention;

FIG. 5 is a top view based on FIG. 4;

FIG. 6 is a side view based on FIG. 4;

FIG. 7 is an isometric view of a protection device of the temperature detector in an embodiment of the invention;

FIG. 8 is a front cross-sectional view of a protection device of the temperature detector in an embodiment of the present invention;

FIG. 9 is a top cross-sectional view of a protection device of the temperature detector in an embodiment of the present invention;

FIG. 10 is a side cross-sectional view of a protective device of the temperature detector in an embodiment of the invention.

In fig. 1 to 10, the correspondence between the part names and the reference numerals is:

the device comprises an outer protection box 1, an inner accommodating chamber 2, an outer protection box cooling medium bin 3, an outer constraint frame 4, an inner protection box 5, an equipment compartment 6, an inner protection box cooling medium bin 7, an inner constraint frame 8, an equipment compartment temperature measuring point inserting hole 9, an outer protection box temperature measuring point inserting hole 10, a water filling port 11, a cover stock rod 12, a cooling medium evaporation port 13, a movable handle 14, a handle 15, a sealing flange 16, a cooling medium injection elbow 17, a temperature detector 18, a temperature sensor 19, a compensation lead 20 and a temperature sensor plug 21.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.

In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.

Referring to fig. 1 to 10, in which, fig. 1 is a schematic structural diagram of an inner protection box in an embodiment of the present invention; FIG. 2 is a top view of an inner protective case in an embodiment of the present invention; FIG. 3 is a rear view of an inner protective case in an embodiment of the present invention; FIG. 4 is a schematic structural diagram of an inner protection box provided with a temperature detector and a temperature sensor according to an embodiment of the present invention; FIG. 5 is a top view based on FIG. 4; FIG. 6 is a side view based on FIG. 4; FIG. 7 is an isometric view of a protection device of the temperature detector in an embodiment of the invention; FIG. 8 is a front cross-sectional view of a protection device of the temperature detector in an embodiment of the present invention; FIG. 9 is a top cross-sectional view of a protection device of the temperature detector in an embodiment of the present invention; FIG. 10 is a side cross-sectional view of a protective device of the temperature detector in an embodiment of the invention.

The invention provides a protection device of a temperature detector, which is used for protecting the temperature detector 18 when detecting the temperature, and the temperature detector 18 is used for periodically carrying out TUS (temperature uniformity detection) on a continuous heating furnace.

The temperature detector 18 may also be referred to as an oven temperature tracker, and more specifically, an oven temperature tracker with wireless transmission capability. The temperature detector 18 is arranged to facilitate monitoring of risks in the detection process, and monitoring of overtemperature in the detection process can achieve a better protection effect on equipment.

The temperature detector 18, the temperature sensor 19, the compensation wire 20 and the temperature sensor plug 21 are generally used in the temperature uniformity detection activity. The temperature sensor 19 is connected with a compensation wire 20, one end of the compensation wire 20 is provided with a temperature sensor plug 21, and the temperature sensor plug 21 is connected with the temperature detector 18, so that a set of detection components capable of detecting temperature uniformity is assembled.

In the invention, the protection device of the temperature detector comprises an outer protection box 1 and an inner protection box 5, wherein the inner protection box 5 is arranged in the outer protection box 1, and the temperature detector 18 is arranged in the inner protection box 5.

Specifically, the outer protection box 1 is of a rectangular box structure, and a plug-in window is formed in one end of the outer protection box 1 along the length direction of the outer protection box 1 and is used for inserting and taking out the inner protection box 5.

The outer shielding box 1 has an inner compartment 2 and an outer shielding box cooling medium compartment 3, the outer shielding box cooling medium compartment 3 surrounding the inner compartment 2.

In one embodiment of the present invention, the bottom surface (outer side surface) of the inner chamber 2 is in contact with the bottom surface (inner side surface) of the outer protective casing 1, and the contact is direct connection, that is, the bottom surface of the inner chamber 2 is against the bottom surface of the outer protective casing 1, and the other surfaces of the inner chamber 2 are in contact with the outer protective casing cooling medium compartment 3 (the contact is a connection capable of heat transfer).

In another embodiment of the invention, the other sides that make up the inner compartment 2, except for the portion of the inner compartment 2 that communicates with the cartridge window, are all in contact with the outer pod cooling medium compartment 3, i.e., the inner compartment 2 is enclosed within the outer pod cooling medium compartment 3 (as opposed to being suspended within the outer pod cooling medium compartment 3).

The cooling medium bin 3 of the outer protective box is filled with cooling liquid, and the cooling liquid provides cooling capacity for the inner accommodating chamber 2 through the heat transfer effect with the inner accommodating chamber 2, so that the inner accommodating chamber 2 is cooled. Thus, the larger the contact area between the inner volume 2 and the outer guard box cooling medium compartment 3, the better the cooling effect. Based on the two embodiments, the cooling wing plate can be arranged in the cooling medium bin 3 of the outer protection box, the cooling wing plate is connected with the outer side surface of the inner accommodating chamber 2 and can realize heat transfer, and the contact area between the cooling medium in the cooling medium bin 3 of the outer protection box and the inner accommodating chamber 2 can be increased by additionally arranging the cooling wing plate, so that the exchange efficiency of cooling capacity is further improved.

A side wall of the outer protective box 1 is provided with a plug-in window communicated with the inner chamber 2, and the inner protective box 5 can be inserted into the inner chamber 2 of the outer protective box 1 or the inner protective box 5 can be taken out of the outer protective box 1 through the plug-in window.

The inner protection box 5 is arranged in the outer protection box 1, specifically, the inner protection box 5 is arranged at the lower part of the outer protection box 1, the equipment compartment 6 is a structure on the inner protection box 5, and the equipment compartment 6 is arranged at the lower part of the inner protection box 5. This structural design can extend the protection time of the temperature detector 18 under the cooling medium.

The inner protection box 5 is arranged inside the outer protection box 1, the cooling medium is injected into the outer protection box 1, and in order to ensure that the inner protection box 5 and the cooling medium keep the maximum contact area (the larger the contact area is, the more the protection effect of the cooling medium on the protection box 5 can be ensured), the inner protection box 5 should be located at the position below the inner part of the outer protection box 1. Of course, the equipment bay 6 provided on the inner protective box 5 should also be in a lower position on the inner protective box 5.

The protection device provided by the invention is suitable for temperature detectors with smaller models, so that the structural size of the protection device cannot be too large. However, in theory, the object of the invention is to provide a more friendly assembly function and better thermal insulation protection effect than the original design, with the smallest possible volume (the protection device is smaller, and the adaptability of the detection site is better). Of course, the present invention can be designed to be larger in size to meet the necessary inspection requirements, and if the size is larger, the cooling liquid can be loaded more, and the self-sustaining time is longer.

Therefore, regardless of the change in volume of the inner protection box 5, the equipment compartment 6 is arranged on the inner protection box 5, and should be arranged below the lowest water level of the cooling medium in the inner protection box 5 as far as possible. The inner protection box 5 is designed to be arranged at the lower part in the outer protection box 1, the equipment cabin 6 is designed to be arranged at the lower part in the inner protection box 5, and the overall principle is that the temperature detector 18 can be arranged below the lowest water level line as far as possible, so that the temperature detector 18 is prevented from being heated due to excessive evaporation.

The temperature detector is arranged on the inner protection box 5, the temperature sensor 19 is connected with the temperature detector, the temperature sensor 19 is led out of the inner chamber 2 of the outer protection box 1 to the outer side of the outer protection box 1, and in order to improve the stability of the installation of the temperature sensor 19 relative to the outer protection box 1, the outer side wall of the outer protection box 1 is provided with an outer constraint frame 4 for constraining the temperature sensor 19.

Specifically, the outer restraint frame 4 is provided on the same side wall of the outer protective box 1 as the cartridge window, and the outer restraint frame 4 is provided on the upper side of the cartridge window.

In a preferred embodiment of the present invention, the external restraint frame 4 is structured as follows: the outer constraint frame 4 comprises a hinge table, a locking table and a constraint cross rod, the hinge table and the locking table are arranged on the upper side (fixed on the side wall of the outer protection box 1) of the plug-in mounting window, one end of the constraint cross rod is hinged with the hinge table, and the other end of the constraint cross rod can be connected with the locking table through a bolt structure. After the restraint cross bar is opened, the inner protection box 5, the temperature detector 18 and the temperature sensor 19 can be installed, and after the temperature sensor 19 is installed in place, the restraint cross bar is locked on the locking table and presses the temperature sensor 19, so that the temperature detector 18 and the temperature sensor 19 can be conveniently installed.

The outer protective box 1 should have high structural strength and high heat resistance, and therefore, the outer protective box 1 is made of metal, preferably stainless steel. According to the box body structure of the outer protection box 1, the stainless steel plates are cut, and then the stainless steel plates are assembled together in a welding mode to form the complete outer protection box 1.

The outer protection box 1 is preferably of a cuboid structure, grooves are formed in two opposite outer side walls of the outer protection box 1 along the length direction of the outer protection box 1, and movable handles 14 hinged with the outer side walls of the outer protection box 1 are arranged in the groove structures, so that the carrying of the invention is facilitated. Movable handle 14 is also made of a metal material.

The outer protection box 1 is provided with an outer protection box cooling medium bin 3, a water filling port 11 is formed in the outer side wall of the outer protection box 1, a cover stock rod 12 is arranged on the water filling port 11, and further the water filling port 11 is arranged on the upper side face of the outer protection box 1. Cooling medium is injected into the cooling medium bin 3 of the outer protection box from the water injection port 11, and in order to know the injection amount of the cooling medium in the cooling medium bin 3 of the outer protection box, the water injection port 11 is provided with the cover rod 12.

The cap stock rod 12 comprises a cap, the cap can be buckled on the water filling port 11, and the cap and the water filling port 11 can be in threaded fit, so that the overflow of cooling media can be avoided. The trial rod which can be inserted into the cooling medium bin 3 of the outer protection box is arranged on the opening cover, and through the length design of the trial rod, when the opening cover is buckled on the water injection port 11, the bottom end of the trial rod can just touch the bottom surface of the cooling medium bin 3 of the outer protection box, or a very small distance is kept between the bottom end of the trial rod and the bottom surface of the cooling medium bin 3 of the outer protection box. The mouth cap probe 12 is inserted into the water filling port 11 and then pulled out, and the length of the wet part on the probe is the depth of the cooling medium in the cooling medium bin 3 of the outer protection box.

In order to know the using state of the protection device of the temperature detector, the temperature in the cooling medium bin 3 of the outer protection box (the temperature of the cooling medium in the cooling medium bin 3 of the outer protection box) is mainly solved, the outer side wall of the outer protection box 1 is provided with an outer protection box temperature measuring point inserting hole 10, and the outer protection box temperature measuring point inserting hole 10 extends into the cooling medium bin 3 of the outer protection box.

Specifically, an outer guard box temperature measurement point insertion hole 10 is provided on the upper side surface of the outer guard box 1, the outer guard box temperature measurement point insertion hole 10 is a vertical hole, and the outer guard box temperature measurement point insertion hole 10 extends toward the inside of the outer guard box cooling medium compartment 3. The hole bottom of the outer shield case temperature measurement point insertion hole 10 is located near the middle of the equipment room 6 in the height direction, and can detect the temperature around the equipment room 6. The outer protection box temperature measuring point insertion hole 10 is mainly used for being matched with a furnace temperature tracker or a temperature detector or a temperature data acquisition instrument for use, so that risks in the detection process can be monitored conveniently, and the temperature rise condition of the protection device in the detection process can be analyzed after the detection work is finished. The furnace temperature tracker, the temperature detector or the temperature data collector are more specifically a furnace temperature tracker, a temperature detector or a temperature data collector with wireless transmission capability.

In use, a temperature sensor 19 may be provided in the outer guard box temperature measurement point insertion hole 10 for detecting the temperature in the outer guard box cooling medium compartment 3.

The using environment of the invention is a high-temperature environment, the cooling medium loaded in the cooling medium bin 3 of the outer protection box can generate steam after being heated, the steam can cause the internal pressure of the cooling medium bin 3 of the outer protection box to rise, the overhigh pressure in the cooling medium bin 3 of the outer protection box can reduce the using safety of the outer protection box 1, and therefore, the pressure of the cooling medium bin 3 of the outer protection box needs to be released in time. Therefore, the outer side wall of the outer protection box 1 is provided with a cooling medium evaporation port 13, the cooling medium evaporation port 13 is communicated with the outer protection box cooling medium bin 3, and specifically, the cooling medium evaporation port 13 is arranged on the upper side surface of the outer protection box 1.

The inner protection box 5 is a box structure arranged in the outer protection box 1, the inner protection box 5 is used for installing the temperature detector 18, and the inner protection box 5 not only has an installation function for the temperature detector 18, but also has a cooling function for the temperature detector 18.

Specifically, one end of the inner protection box 5 is an outlet, and the outlet of the inner protection box 5 can be inserted into the inner chamber 2 from the insertion window. The other end of the inner protection box 5 is a closed end which can be connected with the plug-in window in a sealing mode, and the inner protection box 5 is provided with an equipment cabin 6 for installing the temperature detector 18.

The inner protective case 5 is also made of a metal material, such as stainless steel. The stainless steel plates are cut according to the box body structure of the inner protection box 5, and the cut stainless steel plates are welded together in a welding mode to form the inner protection box 5. This ensures that the inner protective case 5 has high structural strength and high heat resistance, and at the same time, the inner protective case 5 has excellent thermal conductivity.

The inner protection box 5 is provided with an equipment cabin 6 for installing the temperature detector 18, the outlet end is provided with an installation window communicated with the equipment cabin 6, and the temperature detector 18 is inserted into the equipment cabin 6 from the installation window. In practice, an appropriate amount of insulation fibers may be wrapped around the temperature monitor 18 and the temperature monitor 18 may then be loaded into the equipment compartment 6.

The inner protection box 5 is provided with an inner protection box cooling medium bin 7, the inner protection box cooling medium bin 7 surrounds the equipment cabin 6, the equipment cabin 6 is wrapped in the inner protection box cooling medium bin 7, the contact area between the equipment cabin 6 and the cooling medium in the inner protection box cooling medium bin 7 can be increased, and therefore the cooling effect is improved. The cooling wing plates can also be arranged in the cooling medium bin 7 of the inner protection box, the cooling wing plates are connected with the outer side wall of the equipment cabin 6, the heat dissipation area is increased through the cooling wing plates, and the cooling effect of the cooling medium bin 7 of the inner protection box on the inner protection box 5 on the equipment cabin 6 is further improved.

In the invention, a channel for extending the temperature sensor 19 out of the outer protection box 1 is arranged between the inner protection box 5 and the outer protection box 1, the temperature sensor 19 is arranged outside the upper surface of the inner protection box 1, and the inner restraint frame 8 for restraining the temperature sensor 19 is arranged on the upper surface of the inner protection box 5. The inner restraint frame 8 is similar in structure to the outer restraint frame 4, and the inner restraint frame 8 will not be described in much detail herein, with reference to the above description of the structure of the outer restraint frame 4. However, for the inner restraint frame 8, other structures can be adopted to lock the movable end (the end matched with the locking platform) of the upper restraint cross rod of the inner restraint frame 8.

An upper restraint cross bar (a movable upper cover) of the inner restraint frame 8 is hinged on the inner protection box 5 at one end, and the other end is a movable end. When the temperature sensor 19 (a thermocouple of the temperature sensor 19) is placed on the outer surface (mainly the part below the inner restraint frame 8) of the inner protection box 5, the upper restraint cross rod of the inner restraint frame 8 is pressed down, and then the pin shaft used for locking the movable end of the upper restraint cross rod is inserted, so that the temperature sensor 19 can be locked easily. The structural design avoids the trouble that the temperature sensor 19 (the thermocouple of the temperature sensor 19 is longer) penetrates the inner constraint frame 8 (the gap between the inner constraint frame 8 and the outer surface of the inner protection box 5) one by one.

The inner protection box 5 is installed in the inner chamber 2 of the outer protection box 1 in an inserting mode, and the inner protection box 5 is optimized in the following structure in order to facilitate the insertion and the extraction of the inner protection box 5: the upper surface of the inner protection box 5 is used for arranging a lead and a temperature sensor 19, the inner restraint frame 8 is arranged on the upper surface of the inner protection box 5, the upper surface of the inner protection box 5 is an inclined surface, and one side, located at the closed end of the inner protection box 5, of the upper surface of the inner protection box 5 is higher than the other side (located at one side of the wire outlet end) of the inner protection box 5. The inner guard box 5 is close to a trapezoid structure in overall view, and the height of the outlet end of the inner guard box 5 is smaller than that of the closed end thereof. Before the inner protection box 5 is installed in the outer protection box 1, after the components such as the temperature detector 18 and the temperature sensor 19 are installed, the heat insulation fiber is paved on the upper surface of the inner protection box 5, the components arranged on the upper surface of the inner protection box 5 are covered by the heat insulation fiber, the heat insulation fiber not only has the heat insulation function, but also can provide flexible protection for the components such as the temperature sensor 19 arranged on the upper surface of the inner protection box 5, when the inner protection box 5 is inserted into the inner accommodating chamber 2 of the outer protection box 1 (the structural shape of the inner accommodating chamber 2 is designed according to the external contour shape of the inner protection box 5), the inner accommodating chamber 2 can apply certain pressure on the heat insulation fiber, thereby improving the firm degree of installation of the inner protection box 5 in the inner accommodating chamber 2, meanwhile, the heat insulation fiber generates deformation after being pressed, and the contact tightness degree between the components such as the temperature sensor 19 is increased, there is an advantageous effect of improving the mounting stability of the temperature sensor 19.

The upper inner side surface of the inner accommodating chamber 2 is an inclined surface, and one side of the upper inner side surface of the inner accommodating chamber corresponding to the closed end is higher than one side corresponding to the wire outlet end. If the slope of the upper surface of the inner protection box is k1 and the slope of the upper inner side surface of the inner accommodating chamber is k2, k1 is not equal to k 2. Preferably, k1 > k 2. The structural design (k1 > k2) has the advantages that: in the process that the inner protection box 5 is inserted into the inner accommodating chamber 2, the gap between the upper inner side surface of the inner accommodating chamber 2 and the upper surface of the inner protection box 5 is gradually reduced, namely the channel is gradually narrowed, the pressure on the heat insulation fiber is gradually increased, and the sealing property is improved.

The space between the upper surface of the inner protection box and the upper inner side surface of the inner accommodating chamber is the channel for installing the compensation lead 20 and the temperature sensor 19, the temperature sensor 19 extends out of the outer protection box 1 from the channel, a part of the temperature sensor is positioned in the channel, and the space in the channel except the temperature sensor is filled with heat insulation materials. Further, the heat insulating material has a stretching property. After the temperature sensor 19 is installed, the remaining space in the channel is filled with a thermal insulation material having a telescopic characteristic, and during the assembly process of the protection device of the temperature detector, the thermal insulation material can be pressed and filled inwards under the dual actions of the upper surface of the inner protection box with different slopes, the upper inner side surface of the inner accommodating chamber and the external sealing flange 16, so as to enhance the thermal insulation effect.

The above-mentioned expansion and contraction characteristics are similar to the physical characteristics of cotton fluffs, which means that the density of the heat insulating material changes, thereby causing the volume of the heat insulating material to expand or contract compared with the normal state. In the present invention, the bulk density of the heat insulating material is usually 96kg/m³～160kg/m³In the meantime.

According to the invention, the handle 15 is arranged on the outer side wall of the inner protection box 5, and particularly the handle 15 is arranged at the closed end of the inner protection box 5, so that the inner protection box 5 can be conveniently taken out of the outer protection box 1.

In order to know the use state of the protection device of the temperature detector, mainly the temperature of the equipment cabin 6 (the temperature detector 18 is arranged in the equipment cabin 6, so the temperature of the equipment cabin 6 needs to be detected, when the temperature in the equipment cabin 6 exceeds the highest heat-resisting temperature of the temperature detector 18, protective measures can be taken in time), an equipment cabin temperature measuring point inserting hole 9 is formed in the outer side wall of the inner protection box 5, and the equipment cabin temperature measuring point inserting hole 9 extends into the equipment cabin 6; the equipment bin temperature measuring point inserting hole 9 is formed in the wire outlet end, and the equipment bin temperature measuring point inserting hole 9 is a horizontal hole. And a temperature sensor is inserted into the equipment bin temperature measuring point inserting hole 9 and is used for acquiring the temperature in the equipment cabin 6.

A cooling medium injection elbow 17 is arranged at the closed end of the inner protection box 5, one end of the cooling medium injection elbow 17 is communicated with the cooling medium bin 7 of the inner protection box, and the other end of the cooling medium injection elbow 17 is higher than the highest point of the cooling medium bin 7 of the inner protection box. Preferably, two cooling medium injection elbows 17 are provided, and the two cooling medium injection elbows 17 are provided at the same height.

The number of the cooling medium injection elbows 17 is two, cooling medium is injected into the inner protection box cooling medium bin 7 through one of the cooling medium injection elbows 17, air is exhausted through the other cooling medium injection elbow 17 in the cooling medium injection process, and when the cooling medium is filled, the cooling medium overflows from the other cooling medium injection elbow 17, so that the fact that the inner protection box cooling medium bin 7 is filled can be indicated.

The inner protection box 5 is arranged in the outer protection box 1, and the end face of the closed end of the inner protection box 5 is flush with the side face of the outer protection box 1, which is provided with the mounting window. In order to improve the sealing performance of the inner protection box 5 when being installed in the outer protection box 1 and relative to the installation window (preventing hot air flow from entering the inner chamber 2), the invention is provided with a sealing flange 16 at the closed end of the inner protection box 5, the sealing flange 16 is arranged on the outer edge of the closed end and is flush with the end face of the closed end, and the sealing flange 16 can be abutted against the side wall of the outer protection box 1 surrounding the insertion window. Specifically, a sink structure is provided on the side wall of the outer protective box 1 around the installation window, and the sealing flange 16 can be inserted into the sink structure to abut against the side wall of the outer protective box 1, so that the sealing performance of the sealing flange 16 can be further improved.

The invention is characterized in that a threaded column is arranged on an outer protection box 1, the threaded column is arranged close to an insertion window, a locking part is in threaded fit with the threaded column, and when a sealing flange 16 is abutted against the side wall of the outer protection box 1, the sealing flange 16 is pressed between the locking part and the side wall of the outer protection box 1. Through this structure, can utilize the cooperation of screw post and locking part, realize the locking of interior guard box 5 on outer guard box 1, avoid the drop of interior guard box 5 from outer guard box 1.

In particular, the locking component is a nut provided with a dovetail structure.

In the case of temperature uniformity detection, the temperature detector 18, the temperature sensor 19, the compensation wire 20, the temperature sensor plug 21, and the protection device of the temperature detector as described above are used. The temperature detector 18 is arranged in the equipment compartment 6 of the protection device, the temperature sensor 19 penetrates through the channel and then extends out of the protection device, one end of a temperature sensor compensation lead 20 is connected with the temperature sensor 19, the other end of the compensation lead 20 is provided with a temperature sensor plug 21, and the temperature sensor plug 21 is connected with the temperature detector 18.

The temperature sensor plug 21 is a standard TC plug, i.e. a standard thermocouple quick plug.

The temperature detector 18 is designed with 10 channels, i.e. 10 jack structures, each of which is capable of inserting one temperature sensor plug 21. In fig. 5, 6, 7, 9, and 10, only four temperature sensor plugs 21 are inserted into the temperature detector 18.

A temperature sensor plug 21 is mounted on the outlet end of the inner protection box 5, the temperature sensor plug 21 is connected with one end of a compensation wire 20, the other end of the compensation wire 20 is connected with one end of a temperature sensor 19, and the other end of the temperature sensor 19 extends to the outside of the protection device for detecting temperature. Specifically, both the temperature sensor plug 21 and the compensation conductor 20 are located within the interior chamber 2. Further, the temperature sensor 19 is located in the inner chamber 2 for a length of 200mm or more. Specifically, the temperature sensor 19 is an armored temperature sensor, more specifically, an armored temperature uniformity detection sensor. The armored temperature uniformity detection sensor is defined by the name of the sensor, wherein the name of the sensor is a mixture of industry standard names and purposes, the standard names are armored cheap metal thermocouples or armored noble metal thermocouples, or armored thermal resistors, and the names are collectively called the sensor for containing explanation.

The using method of the invention is as follows: the temperature detector 18 is installed in the equipment compartment 6 of the inner protective box 5, and then the temperature uniformity sensor (temperature sensor 19) is connected. The armored temperature sensor 19 is pressed tightly by the inner restraining frame 8 arranged on the inner protection box 5, so that the head of the temperature sensor 19 is restrained, the compensating lead 20 is smoothed out, and meanwhile, the temperature sensor 19 is flatly paved outside the sealing flange 16 along the top inclined surface of the inner protection box 5. If the evaporation condition of the cooling medium in the outer protection box 1 needs to be monitored, the armored temperature sensor needs to be completely inserted into the detection holes (the equipment bin temperature measuring point insertion hole 9 and the outer protection box temperature measuring point insertion hole 10) of the inner protection box 5 and the outer protection box 1, and then the temperature detector 18 is connected. The inner protection box 5 that will install the completion pushes the inside of outer protection box 1 and holds 2 in the room, pushes the in-process, fills the thermal-insulated fibre of appropriate amount in the top inclined plane space of inner protection box 5 to can push inner protection box 5 completely under the circumstances of perceiving appropriate pretightning force and hold 2 in the inside of outer protection box 1, then screw up the forked tail nut. The part of the temperature sensor 19 outside the outer protection box 1 is led into the position of the external temperature uniformity detection point after passing through the outer constraint frame 4 of the outer protection box 1. The cooling liquid (cooling medium) is respectively injected into the outer protection box 1 and the inner protection box 5, the outer protection box 1 can determine the liquid level by observing the medium overflow condition of the balance air hole or checking the port cover stock rod 12, the inner protection box 5 judges whether the cooling medium is full or not by judging whether one of the two cooling medium injection elbow pipes 17 has the medium overflow, after the cooling medium is filled, the port cover stock rod 12 of the outer protection box 1 is completely inserted, and meanwhile, one of the cooling medium injection elbow pipes 17 on the inner protection box 5 is sealed. The balance air hole is the cooling medium evaporation port 13 mentioned above, and the balance air hole is not tightly blocked by using heat insulation cotton during detection.

The invention is assembled by two groups of protection boxes (an outer protection box 1 and an inner protection box 5), wherein the protection boxes are made of heat-resistant stainless steel. The sealing flange 16 is arranged on the closed end of the inner protection box 5, the pretightening force for installing the internally filled heat insulation material is formed by matching the upper surface of the inner protection box 5 and the mode that the slope of the corresponding surface of the inner accommodating chamber 2 in the outer protection box 1 is different, if the quantity and the size of the existing accommodating detection sensors are not satisfied, the size of the through hole (the notch for the through hole of the temperature sensor 19 on the sealing flange) of the temperature sensor 19 can be adjusted, and the size of the notch is designed only for accommodating the minimum requirement that the temperature sensor can penetrate out. In the invention, the flange constraint design cannot be cancelled, the sealing flange 16 is arranged on the inner protection box 5, when the inner sealing flange 16 is pushed, the heat insulation fibers can be pushed inwards to be compressed, and the heat insulation fibers are compacted, and if the sealing flange 16 is not arranged, the heat insulation fibers cannot be pushed to be compacted.

In the present invention, the slope of the upper surface of the inner protection box 5 is different from the slope of the side surface of the inner chamber 2 with respect to the inclined surface. For convenience of structural description, the upper surface (inclined surface) of the inner protection box 5 is set as a surface a, after the inner protection box 5 is installed in the inner accommodating chamber 2, the side surface corresponding to the surface a of the inner accommodating chamber 2 is set as a surface B, and with respect to the same plane, the slopes of the surface a and the surface B are different, and the slope of the surface a is greater than the slope of the surface B.

For the pressing force and heat insulation, the slope of the inclined plane of the inner and outer protection boxes 1 and the thickness of the outer flange of the inner protection box 5 can be automatically adjusted according to requirements.

The sizes of the inner and outer protection cases 5 and 1, and the volumes of the inner and outer protection case cooling medium compartments 7 and 3 of the inner and outer protection cases 5 and 1 can be designed and adjusted according to the purpose of detection. The size of the equipment compartment 6 on the inner protective box 5 can be designed and adjusted according to the shapes of different temperature detectors 18.

In the invention, the default heat-insulating cooling medium is usually low-temperature liquid water, and is filled by adopting pressure, so that when the heat-insulating cooling medium is applied in different industries, if the oxygen content in a furnace is required, the cooling medium which can decompose oxygen at high temperature is not used, and the medium is replaced by other suitable types and is supplemented by a matched filling mode.

The amount of the residual cooling medium in the inner protection box and the outer protection box can also be obtained by a weighing method. The weight of the inner protection box 5 and the weight of the outer protection box 1 are obtained when the cooling medium is not filled in the inner protection box 5, and then the weights of the inner protection box 5 and the outer protection box 1 filled with the cooling medium are obtained, wherein the difference between the two weights is the weight of the residual cooling medium.

The construction convenience of on-site preparation before temperature uniformity detection and the equipment safety in the temperature uniformity detection process are considered in the design process of the invention, and the protection of the cold end of the temperature sensor 19 and the outlet end of the temperature detector 18 is strengthened by changing the connection outlet mode of the temperature sensor 19 and the temperature detector 18 and using a new structure and assembly relation. The invention eliminates the possibility of accidental breakage in construction operation by adding multiple levels of restraint (namely, arranging the outer restraint frame 4 and the inner restraint frame 8) according to the appearance characteristics of the temperature sensor 19. The present invention facilitates equipment safety and performance data acquisition with the goal of continuing improvements in the quality of the detection process.

The invention has the following structural characteristics:

1. the armored temperature uniformity temperature sensor is restrained by two groups of inner and outer restraining frames (the outer protecting box 1 and the inner protecting box 5) which adopt detachable structures, so that the temperature sensor 19 is not accidentally dropped out of a safety position in the whole temperature uniformity detection process while the installation is convenient.

2. The inner protection box 5 adopts the mode that the wire outlet end of the temperature detector 18 is arranged in the inner side space of the outer protection box 1 and the inner protection box 5, and adopts the reverse wire outlet design, and the temperature sensor plug 21, the compensation lead 20 and the front end of the sensor are all arranged in the protection range in the protection box in a length range of about 200 mm.

The connection points of the temperature sensor 19 and the compensation conductor 20 and the entirety of the compensation conductor 20 are protected, so that it is ensured that the plug-in connection of the temperature sensor 19 and the compensation conductor 20 is sufficiently protected, i.e. the plug-in connection of the temperature sensor 19 and the compensation conductor 20 is located in the interior space 2.

The invention defines: the temperature sensor 19 is located in the interior chamber 2 for a length of 200mm or more, which is an insertion depth determined by the overall design dimensions of the protector according to an embodiment of the invention. The insertion depth mentioned above is necessarily deeper if the outer protective casing 1 is dimensioned larger. The above-mentioned depth of 200mm is a range of dimensions set for a smaller size embodiment of the present invention, and it is better to protect the temperature sensor 19 more deeply inside the outer protective casing 1.

3. The equipment compartment 6 is positioned near the bottom of the outer protective box cooling medium compartment 3, and the protection time of the temperature detector 18 and the temperature sensor 19 under the cooling medium is prolonged.

4. When the temperature sensor 19 penetrates through the outer protection box 1 (the channel between the inner protection box 5 and the outer protection box 1), the top inclined plane of the inner protection box 5 and the corresponding inclined plane on the outer protection box 1 have different slopes, and in an assembly state, the normal distance between the upper inclined plane and the lower inclined plane corresponding to the wire outlet end of the inner protection box 5 is larger than the normal distance between the upper inclined plane and the lower inclined plane corresponding to the closed end of the inner protection box 5. After the temperature sensor 19 is installed, the remaining space of the channel formed by the inclined surfaces is filled with a thermal insulation material having a telescopic characteristic, and the thermal insulation material can be pressed and filled inwards under the double actions of the sealing flange 16 and the surfaces with different slopes of the inner and outer protective cases during the assembly process of the protective cases, so as to enhance the thermal insulation effect.

5. The inner protection box 5 and the outer protection box 1 are both provided with temperature sensor detection holes (an outer protection box temperature measurement point insertion hole 10 and an equipment bin temperature measurement point insertion hole 9), wherein the detection hole depth of the outer protection box 1 and the top of an equipment bin in the box body are used for collecting the temperature of a cooling medium in the outer protection box 1 in an evaporation process, the equipment bin temperature measurement point insertion hole 9 is used for detecting the temperature of the equipment bin 6, the inner protection box and the equipment bin are connected through a temperature detector 18 and used for monitoring the internal environment temperature, when the cooling medium is evaporated to be below a sensor detection point plane, the temperature of the sensor is rapidly increased, and the change process of the temperature data can be used as a data reference for collecting capacity data in the detection process and detecting the. Meanwhile, if the temperature detector 18 has a function of wirelessly sending a temperature alarm, the overtemperature signal can be used as an alarm linkage reference in the detection process.

6. The outer protection box 1 is provided with a cover cap with a stock rod function and used for checking the cooling medium allowance after the temperature uniformity detection is finished.

The invention simplifies the equipment installation process in the temperature uniformity detection activity, ensures that the temperature uniformity installation is more reliable, the equipment protection is more perfect, and is beneficial to adapting to the temperature uniformity detection activity with longer furnace waiting time.

The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.