阅读说明：本技术 一种露点制冷系统及其露点检测器 (Dew point refrigerating system and dew point detector thereof ) 是由 张宾 何伟生 陈新准 马鹏飞 邱国财 刘新雅 郑晓银 刘光亮 林惠庭 李修龙 于 2020-12-07 设计创作，主要内容包括：本发明涉及露点检测器检测技术领域,提供一种露点制冷系统及其露点检测器,所述露点制冷系统包括用于检测温度的测温计；制冷结构,具有制冷面；导热结构,一端连接所述制冷面,另一端具有凸出部,所述凸出部围设出开放窗口；所述测温计与所述导热结构连接；结露结构,被围蔽于所述开放窗口内。本发明通过将露点制冷系统减小了露点制冷系统的体积、避免结露于结露结构上的水蒸气渗入到露点制冷系统内部和应用该露点制冷系统的露点检测器的内部。本发明的露点检测器能够防止水汽和空气进入对露点检测器内部电路和元器件造成损坏、避免有毒气体通过腔体泄露到外界、避免电气针和散热座导电、避免电气针和控制转接板之间连接产生错位。(The invention relates to the technical field of dew point detector detection, and provides a dew point refrigerating system and a dew point detector thereof, wherein the dew point refrigerating system comprises a temperature detector for detecting temperature; a refrigeration structure having a refrigeration surface; one end of the heat conduction structure is connected with the refrigerating surface, the other end of the heat conduction structure is provided with a protruding part, and an open window is formed by the protruding part in a surrounding mode; the temperature detector is connected with the heat conduction structure; and a dew condensation structure enclosed in the open window. The invention reduces the volume of the dew point refrigerating system by the dew point refrigerating system, and avoids the water vapor condensed on the dew condensation structure from permeating into the dew point refrigerating system and the dew point detector applying the dew point refrigerating system. The dew point detector can prevent water vapor and air from entering and damaging circuits and components inside the dew point detector, avoid toxic gas from leaking outside through the cavity, avoid the electric conduction of the electric needle and the heat dissipation seat and avoid the dislocation generated by the connection between the electric needle and the control adapter plate.)

1. A dew point refrigeration system comprising a thermometer (106) for sensing temperature; it is characterized by also comprising

A refrigeration structure (107) having a refrigeration surface;

the heat conduction structure (105) is connected with the refrigerating surface at one end, a protruding part (1051) is arranged at the other end, and an open window is surrounded by the protruding part (1051); the temperature detector (106) is connected with the heat conducting structure (105);

a condensation structure (103) enclosed in the open window;

the refrigerating capacity generated by the refrigerating surface is transmitted to the condensation structure (103) through the heat conduction structure (105), so that the water vapor in the working environment is condensed on the condensation structure (103) to form condensate.

2. A dew point refrigeration system as claimed in claim 1, characterised in that the condensation structure (103) is a silicon wafer and its outer surface is provided with a platinum or gold layer or a rhodium layer; and/or the mirror surface is a silicon wafer, a platinum layer, a gold layer or a rhodium layer is arranged on the outer surface of the mirror surface, and a hydrophobic material coating is arranged on the upper surface of the platinum layer, the gold layer or the rhodium layer.

3. A dew point cooling system as claimed in claim 1, characterized in that the lower end of the heat conducting structure (105) is provided with a receiving groove (1052), the thermometers (106) being placed in the receiving groove (1052).

4. A dew point refrigeration system as claimed in claim 3, characterized in that the temperature probe (106) is a platinum resistor and is provided with a layer of thermally conductive silicone or adhesive on its outer surface.

5. A dew point refrigeration system as claimed in claim 3, characterized in that the lower end of the heat conducting structure (105) is provided with a mounting groove (1053), and the upper end of the refrigeration structure (107) is embedded in the mounting groove (1053);

the accommodating groove (1052) is positioned above the mounting groove (1053) and is communicated with the mounting groove (1052).

6. A dew point refrigeration system as claimed in claim 1, characterized in that the bulge (1051) is integrally formed with the heat conducting structure (105);

and/or the protrusion (1051) is integrally formed with the thermally conductive structure (105); the dew point refrigerating system further comprises a sealing ring (104), and the periphery of the bulge (1051) is wrapped by the sealing ring (104).

7. A dew point refrigeration system as claimed in any one of claims 1 to 6, characterised in that the upper surface of the protruding portion (1051) is higher than the upper surface of the dew condensation structure (103).

8. A dew point detector comprising a control system, a photoelectric detection system, and further comprising a dew point refrigeration system and a heat dissipation system as claimed in any one of claims 1 to 7;

the control system comprises a control adapter plate (110), an electric needle (108) and a remote control host;

the heat dissipation system comprises a heat dissipation seat (109), and the heat dissipation seat (109) is provided with a cavity (1091);

the control adapter plate (110) is positioned in the cavity (1091) and connected to the remote control host; the electric pin (108) is inserted into the cavity (1091) and electrically connected with the control adapter plate (110), and the electric pin (108) is in insulated connection with the heat dissipation seat (109);

the electric needle (108) is also electrically connected with the photoelectric detection system and the dew point refrigerating system; the cooling surface that refrigeration structure (107) was equipped with connect in heat dissipation seat (109).

9. Dew point detector as claimed in claim 8, characterized in that the cavity (1091) is filled with a sealing agent to seal the cavity (1091) from gases outside the cavity (1091).

10. A dew point detector as claimed in claim 8 or 9, characterised in that the dew point cooling system is arranged on the upper surface of the heat sink (109), the photoelectric detection system comprising a photoelectric detection device (101) and a detection cover (102);

after the lower surface of the detection cover body (102) is upwards sunken and a part of structure is removed, a detection cavity is formed between the side wall and the top of the detection cover body (102);

the photoelectric detection device (101) is arranged on the top of the detection cover body (102);

after the detection cover body (102) is installed on the heat dissipation seat (109), the dew point refrigeration system is located in the detection cavity.

Technical Field

The invention relates to the technical field of dew point detector detection, in particular to a dew point refrigerating system and a dew point detector thereof.

Background

In the working environment of natural gas, metallurgy, health quarantine, toxic or corrosive gas and the like, water vapor in the gas has important influence on the operation. At present, the dew point temperature of the gas is often detected by a dew point detector, so that the humidity in the gas is indirectly measured.

The dew point temperature of the gas is that the water vapor in the gas is cooled to condensed phase under the condition of isobaric pressure, and then the temperature of the dew layer sensor is controlled to enable the water vapor in the gas and the flat surface of water or ice to be in a thermodynamic phase equilibrium state, wherein the temperature of the dew layer is the dew point temperature of the gas.

In the prior art, a dew point detector is composed of a heat dissipation system, a refrigeration structure, a temperature measuring resistor, photoelectric detection, a dew condensation structure and other components. In practical application occasions, the dew point detector has corresponding requirements on the size, the dust pollution environment adaptability, the measurement temperature difference limit, the sealing gas pressure resistance, the corrosion resistance and the like.

The existing dew point detector uses copper as a condensation structure, the condensation structure has poor pollution resistance and is easy to scratch, and the surface of the condensation structure is dirty and scratched, so that the detection precision is reduced, and the long-term use is not facilitated.

When the existing dew point detector is used, in the process that water vapor in the working environment is subjected to condensation through a condensation structure, part of the water vapor permeates into the interior of the dew point detector, so that a circuit and other components in the dew point detector are damaged, and the service life of the dew point detector is shortened.

Disclosure of Invention

The invention aims to overcome the defect that water vapor permeates into a dew point detector in the prior art, and provides a dew point refrigerating system which is used for preventing water vapor from permeating into the dew point refrigerating system and the interior of the dew point detector using the dew point refrigerating system and reducing the volume of the dew point refrigerating system.

The technical scheme adopted by the invention is that the dew point refrigerating system comprises a temperature detector for detecting temperature; a refrigeration structure having a refrigeration surface; one end of the heat conduction structure is connected with the refrigerating surface, the other end of the heat conduction structure is provided with a protruding part, and an open window is formed by the protruding part in a surrounding mode; the temperature detector is connected with the heat conduction structure; a dew condensation structure enclosed in the open window; the refrigeration capacity generated by the refrigeration surface is transmitted to the condensation structure through the heat conduction structure, so that the water vapor in the working environment is condensed on the condensation structure to form condensate.

In the scheme, the refrigeration structure adopts a thermoelectric refrigeration principle, and the refrigeration surface of the refrigeration structure forms cold energy to act on the heat conduction structure. The heat conduction structure transmits cold energy from the refrigeration structure to the condensation structure, so that water vapor in the working environment is condensed on the condensation structure to form condensate. And then the temperature of the heat conduction structure is detected by a temperature detector, so that the temperature of the condensation structure, namely the dew point temperature of the gas, is indirectly detected, and the temperature of the gas is measured in an auxiliary manner, so that the humidity in the gas is obtained.

Compared with the prior art, the split of the dew point refrigeration system is divided into the refrigeration structure, the heat conduction structure and the dewing structure, so that the volume of the dew point refrigeration system can be reduced, the response speed is increased, and the refrigeration performance loss is avoided.

Compared with the prior art, the dew point refrigerating system has the advantages that the open window is arranged on the heat conduction structure, the dew condensation structure is enclosed and shielded in the open window, and therefore water vapor which is condensed on the dew condensation structure is prevented from permeating into the dew point refrigerating system and the dew point detector applying the dew point refrigerating system.

Compared with the prior art, the scheme is also provided with a dewing structure in the occupied space of the heat conduction structure; that is, the sum of the space occupied by the heat conduction structure and the dew condensation structure is consistent with the space occupied by the heat conduction structure, so that the volume of the dew point refrigerating system is reduced.

Preferably, the condensation structure is a silicon wafer, and a platinum layer, a gold layer or a rhodium layer is arranged on the outer surface of the condensation structure; (ii) a And/or the mirror surface is a silicon wafer, a platinum layer, a gold layer or a rhodium layer is arranged on the outer surface of the mirror surface, and a hydrophobic material coating is arranged on the upper surface of the platinum layer, the gold layer or the rhodium layer. Compared with the prior art, the moisture condensation structure has the advantages that the platinum layer or the gold layer or the rhodium layer and the hydrophobic material coating are arranged on the outer surface of the moisture condensation structure, the conventional moisture condensation structure is abandoned to be copper, the outer surface of the copper is provided with the gold layer, the anti-pollution capacity of the moisture condensation structure can be improved, the moisture condensation structure is not prone to being scratched, the detection precision is prevented from being adversely affected, and the long-term use is facilitated.

Preferably, the lower end of the heat conduction structure is provided with an accommodating groove, and the thermometer is arranged in the accommodating groove. This scheme has set up the holding tank and will the thermometer encloses to cover to further prevent that the moisture condensation from permeating in the structural vapor infiltration of dewfall in dew point refrigerating system, cause the influence to the measurement accuracy of thermometer, and damage the thermometer. Meanwhile, the volume of the dew point refrigerating system is also reduced.

Preferably, the thermometer is a platinum resistor, and the outer surface of the thermometer is provided with a heat conduction silicone layer or a heat conduction adhesive layer. This scheme adopts heat conduction silicone grease layer or heat-conducting adhesive layer to make thermodetector and heat conduction structure zero clearance paste tightly to the area of increase heat conduction, in order to improve heat transfer efficiency.

Preferably, the lower end part of the heat conducting structure is provided with an installation groove, and the upper end part of the refrigeration structure is embedded in the installation groove; the holding tank is located the top of mounting groove, and with the mounting groove is linked together. In this scheme installed mounting groove, holding tank respectively with refrigeration structure, dewfall structure, enclosed refrigeration structure, dewfall structure and cover in heat conduction structure, prevent that the dewfall from the structural vapor infiltration of dewfall in dew point refrigerating system in, cause the damage to refrigeration structure, heat conduction structure.

Preferably, the protrusion is integrally formed with the heat conducting structure; and/or the bulge is integrally formed with the heat conducting structure; the dew point refrigerating system further comprises a sealing ring, and the sealing ring wraps the periphery of the protruding portion. In this scheme, the bulge with heat conduction structure integrated into one piece can prevent that the vapor of dewfall on the dewfall structure from oozing by the gap between bulge and the heat conduction structure, causes the damage to dew point refrigerating system and applied this dew point refrigerating system's dew point detector. The scheme is provided with the sealing ring, so that the condensation of water vapor on the condensation structure can be prevented from permeating into the dew point refrigerating system from the outer side of the heat conduction structure.

Preferably, an upper surface of the protrusion is higher than an upper surface of the dew condensation structure. The scheme is arranged in such a way that the water vapor which is exposed on the dewing structure is limited in the open window, so that the outward seepage is avoided.

A dew point detector comprises a control system, a photoelectric detection system, a dew point refrigerating system and a heat dissipation system; the control system comprises a control adapter plate, an electric needle and a remote control host; the heat dissipation system comprises a heat dissipation seat, and the heat dissipation seat is provided with a cavity; the control adapter plate is positioned in the cavity and connected to the remote control host; the electric needle is inserted into the cavity and electrically connected with the control adapter plate, and the electric needle is in insulated connection with the heat dissipation seat; the electric needle is also electrically connected with the photoelectric detection system and the dew point refrigerating system; the cooling surface that refrigeration structure was equipped with connect in the radiating seat.

In the scheme, the photoelectric detection system detects the thickness of condensate on the condensation structure by using the change of the reflected light intensity of the condensation structure, wherein the condensate on the condensation structure refers to dew or frost condensed on the condensation structure. The heat dissipation seat is used for dissipating heat generated by the heat dissipation surface of the refrigeration structure. The electric needle is connected with the heat dissipation seat in an insulating mode, and the influence of the heat dissipation seat on the normal use of the dew point detector is avoided. The cavity is used for accommodating the control adapter plate, and the electric pin is inserted in the cavity and electrically connected to the control adapter plate, so that the circuit of the dew point detector is intensively positioned in the cavity of the heat dissipation seat, the circuit is prevented from being exposed outside the dew point detector, the detection effect is influenced, and the circuit is damaged.

This scheme refrigerates through the refrigeration structure among the dew point refrigerating system, and when the temperature of the upper surface of dew structure dropped below gaseous dew point temperature, the upper surface of dew structure began the dewfall, under the control of remote control host computer, photoelectric detection system detects the condensate thickness of the upper surface of dew structure to the condensate thickness information feedback that will detect out reaches the remote control host computer. And under the control of the remote control host, the refrigerating power of the refrigerating structure is adjusted, so that the temperature of the condensation structure is consistent with the dew point temperature of the gas. The remote control host machine is in information interaction with the dew point refrigerating system and the photoelectric detection system through the control adapter plate.

Preferably, the cavity is filled with a sealant to seal the cavity from gas outside the cavity. According to the scheme, firstly, the cavity is sealed by the sealant, so that water vapor and air are prevented from entering and damaging circuits and components inside the dew point detector; secondly, when the dew point detector is applied to the operation environment of toxic gas, the toxic gas can be prevented from leaking outside through the cavity, and the life safety of workers is threatened; thirdly, the electric needle and the heat dissipation seat are insulated by the sealant, so that the electric needle and the heat dissipation seat are prevented from conducting electricity; and thirdly, the electric needle and the control adapter plate are fixed by the sealant, so that the situation that the electric needle and the control adapter plate are connected to generate dislocation and the detection cannot be performed smoothly is avoided.

Preferably, the dew point refrigerating system is arranged on the upper surface of the heat dissipation seat, and the photoelectric detection system comprises a photoelectric detection device and a detection cover body; after the lower surface of the detection cover body is upwards sunken and part of the structure is removed, a detection cavity is formed between the side wall and the top of the detection cover body; the photoelectric detection device is arranged on the top of the detection cover body; after the detection cover body is installed on the heat dissipation seat, the dew point refrigerating system is located in the detection cavity. Compared with the prior art, the scheme is provided with the detection cavity, so that the influence of air flow fluctuation on the detection result can be avoided, and the detection result is not accurate.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the dew point refrigeration system is divided into the refrigeration structure, the heat conduction structure and the dewing structure, so that the volume of the dew point refrigeration system can be reduced, the response speed is increased, and the refrigeration performance loss is avoided; the heat conduction structure is provided with an open window, an accommodating groove and an installing groove to enclose and cover the dewing structure, the temperature detector and the refrigerating structure, and the water vapor which is dewed on the dewing structure is prevented from permeating into the dew point refrigerating system and the dew point detector of the dew point refrigerating system. The dew point detector is provided with the heat dissipation seat with the cavity, the electric needle and the control adapter plate, so that circuits of the dew point detector are intensively positioned in the cavity of the heat dissipation seat, and the circuits are prevented from being exposed outside the dew point detector, thereby influencing the detection effect and damaging the circuits; according to the invention, the sealant is arranged in the cavity, so that the damage to the internal circuit and components of the dew point detector caused by the entrance of water vapor and air is prevented, the toxic gas is prevented from leaking to the outside through the cavity, the electric conduction of the electric needle and the heat dissipation seat is avoided, and the dislocation caused by the connection between the electric needle and the control adapter plate is avoided.

Drawings

Fig. 1 is an exploded view of example 1 of the present invention.

Fig. 2 is a structural view of embodiment 1 of the present invention.

Fig. 3 is a perspective view of the heat conducting structure 105 of the present invention.

Fig. 4 is a bottom view of the thermally conductive structure 105 of the present invention.

Fig. 5 is an exploded view of example 2 of the present invention.

FIG. 6 is a cross-sectional view of example 2 of the present invention.

Reference numerals: the detection device comprises a detection upper cover 100, a photoelectric detection device 101, a detection cover body 102, a condensation structure 103, a sealing ring 104, a heat conduction structure 105, a convex part 1051, an accommodating groove 1052, an installing groove 1053, a temperature detector 106, a refrigeration structure 107, an electric needle 108, a heat dissipation seat 109, a cavity 1091, a control adapter plate 110, an aviation connector 111 and a heat dissipation tail cover 112.

Detailed Description

The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 and 2, the present embodiment provides a dew point refrigeration system, which includes a condensation structure 103, a heat conducting structure 105, a temperature detector 106, and a refrigeration structure 107.

In order to facilitate understanding of the dew point refrigeration system described in embodiment 1 of the present application, an application scenario of the dew point refrigeration system will be described first. The dew point refrigerating system is applied to a dew point detector, the dew point detector enables water vapor to be condensed through the dew point refrigerating system, then the temperature detector 106 detects the dew point temperature of the water vapor, and then the temperature of the gas is measured in an auxiliary mode, so that the humidity in the gas is obtained. The dew point detector can be applied to various operating environments, such as natural gas, metallurgy, health quarantine, toxic corrosive gas-containing operating environments and the like, and has higher requirements on the performance of the dew point detector in the aspect of application because the dew point detector is applied to various different operating environments. Among other things, the performance of the dew point refrigeration system has a large impact on the application of the dew point detector.

The specific working process of the dew point refrigerating system is as follows: the refrigeration structure 107 generates cold energy by a thermoelectric refrigeration principle, and the cold energy generated by the refrigeration surface of the refrigeration structure 107 is transmitted to the condensation structure 103 through the heat conduction structure 105, so that the water vapor in the working environment is condensed on the condensation structure 103 to form condensate. The dew point refrigeration system detects the temperature of the heat conduction structure 105 through the temperature detector 106, thereby indirectly detecting the temperature of the condensation structure 103.

Wherein, refrigeration structure 107 is the refrigeration piece, the refrigeration piece has refrigeration face and cooling surface, and refrigeration structure 107's upper surface is the refrigeration face, and its lower surface is the cooling surface. Specifically, the cooling structure 107 may have a three-layer structure, but is not limited to the three-layer structure.

In one embodiment, the cooling structure 107 is a three-layer structure, and the cross-sectional area of the uppermost layer of the cooling structure 107 is smaller than the cross-sectional area of the other layers of the structure.

Wherein the heat conducting structure 105 is used to transfer cooling energy from the cooling surface of the cooling structure 107, as shown in fig. 3. In particular, the heat conducting structure 105 is connected to the refrigeration surface at one end and has a protrusion 1051 at the other end. In order to prevent water vapor condensed on the condensation structure 103 from infiltrating into the dew point refrigeration system and save the occupied space of the dew point refrigeration system, the protrusion 1051 encloses an open window to accommodate the condensation structure 103. In detail, the open window has a substantially square shape, but is not limited to a square shape. Also, just as the open window is generally square, the projections 1051 form rounded corners at the four corners of the open window to facilitate mounting and dismounting of the condensation structure 103. In detail, the protruding portion 1051 is integrally formed with the heat conducting structure 105 in order to prevent the water vapor condensed on the condensation structure 103 from being leaked out.

In one application embodiment, the protruding portion 1051 is located at the side of the heat conducting structure 105 and encloses an open window disposed at the side of the heat conducting structure 105, and the open window is used for accommodating the dewing structure 103.

Specifically, in order to prevent the water vapor on the dew condensation structure 103 from permeating into the dew point refrigerating system, the damage is caused to the temperature detector 106 and the refrigerating structure 107, the occupied space of the dew point refrigerating system is saved, and the upper surface of the protruding part 1051 is higher than the upper surface of the dew condensation structure 103, so that the water vapor on the dew condensation structure 103 is limited in the opening window. Specifically, as shown in fig. 4, in order to further prevent the water vapor exposed on the dewing structure 103 from permeating into the dew point refrigerating system, damaging the temperature detector 106 and the refrigerating structure 107, and saving the occupied space of the dew point refrigerating system, an accommodating groove 1052 and an installation groove 1053 are disposed at the lower end of the heat conducting structure 105, the installation groove 1053 is communicated with the outside of the heat conducting structure 105 and is located below the accommodating groove 1052, and the installation groove 1053 is communicated with the accommodating groove 1052. The accommodating groove 1052 is used for accommodating a temperature measuring meter 106, the temperature measuring meter 106 is arranged in the accommodating groove 1052 and is contacted with the inner wall of the accommodating groove 1052, and the temperature measuring meter 106 is connected with the installation groove 1053 in an insulation mode. Mounting groove 1053 matches with refrigeration structure 107, and the upper end of refrigeration structure 107 is embedded in mounting groove 1053. In detail, the mounting groove 1053 and the refrigeration structure 107 may each be a rectangular groove, but are not limited to rectangular grooves.

In one application embodiment, the uppermost structure of the refrigeration structure 107 is inserted into the mounting channel 1053.

Specifically, the heat conducting structure 105 is substantially "convex" in shape, with an upper end portion having a smaller cross-sectional area than a lower end portion thereof, to house the thermometer 106 and the cooling structure 107. In particular, the heat conducting structure 105 may be made of a heat conducting metal, preferably copper.

The condensation structure 103 is a condensation place of the dew point refrigeration system. Specifically, the condensation structure 103 has a substantially square shape, but is not limited to a square shape. Specifically, the dew condensation structure 103 is enclosed within the open window. The condensation structure 103 is fitted into the open window, receives cooling energy from the heat conduction structure 105, and condenses water vapor in the working environment on the upper surface of the condensation structure 103. Specifically, in order to improve the heat conduction efficiency, the dew condensation structure 103 is a silicon wafer. Specifically, in order to improve the anti-fouling ability of the dew condensation structure 103 and make the dew condensation structure 103 not easily scratched, a platinum layer or a gold layer or a rhodium layer and a hydrophobic material coating layer are provided on the outer surface of the dew condensation structure 103, and further, the platinum layer or the gold layer or the rhodium layer is provided on the upper surface of the dew condensation structure 103, and the hydrophobic material coating layer is provided on the upper surface of the platinum layer or the gold layer or the rhodium layer.

Wherein, the temperature detector 106 is connected to the heat conducting structure 105 and is used for measuring temperature. Specifically, the thermometer 106 has a substantially rectangular parallelepiped shape. Specifically, the thermometer is a platinum resistor, and in order to further increase the heat conduction area, a heat conduction silicone layer or a heat conduction adhesive layer is arranged on the outer surface of the platinum resistor, so that the thermometer 106 and the heat conduction structure 105 are tightly attached without a gap.

Wherein, in order to prevent the vapor exposed on the condensation structure 103 from permeating into the dew point refrigerating system from the outside of the heat conduction structure, damage is caused to the temperature detector 106 and the refrigerating structure 107, the dew point refrigerating system further comprises a sealing ring 104, and the sealing ring 104 is wrapped on the periphery of the bulge 1051. Specifically, the seal ring 104 may be a rubber seal ring.

In one embodiment, the sealing ring 104 is wrapped around the upper end of the heat conducting structure 105, and the portion of the heat conducting structure 105 wrapped by the sealing ring 104 is located below the protrusion 1051.

In one embodiment, the sealing ring 104 is wrapped around the lower end of the heat conducting structure 105.

Example 2

As shown in fig. 5, this embodiment is a complete structural embodiment based on the scheme shown in fig. 2, and provides a dew point detector, which includes a photoelectric detection system, a dew point refrigeration system in embodiment 1, a heat dissipation system, and a control system.

The photoelectric detection system comprises a photoelectric detection device 101 and a detection cover 102. In detail, the photo detection device 101 includes an LED emission light source and a photosensitive receiving tube, and the thickness of the condensate is measured by detecting the change of the intensity of the reflected light of the dew condensation structure 103 through the LED emission light source and the photosensitive receiving tube. In detail, the detection cover 102 is provided with a detection cavity, and the detection cavity is formed between the side wall and the top of the detection cover 102 after the lower surface of the detection cover is recessed upwards to remove a part of the structure.

The photoelectric detection device 101 is positioned at the top of the detection cover body 102; after the detection cover body 102 is installed on the heat dissipation system, the dew point refrigeration system is located in the detection cavity. In detail, in order to facilitate the mounting of the photodetection device 101 on the upper end of the detection cover 102, the upper end of the detection cover 102 is provided with the detection cover 100, and the detection cover 100 is detachably mounted on the detection cover 102. Specifically, the dew point refrigeration system is located within the detection chamber. An air hole 1021 is formed in the side wall of the detection cover body 102, and the air hole 1021 is communicated with the detection cavity.

The control system comprises an electric needle 108, a control adapter plate 110, an aviation connector 111 and a remote control host. The remote control host is not shown in the figure.

In particular, the electrical pin 108 is used for electrical conduction. In detail, the electrical pin 108 is composed of a conductive metal, and is provided with a plurality of pieces. The electrical pins 108 may be of the same size or of different sizes. Specifically, the aviation connector 111 is further connected to a remote control host, so that the remote control host can perform information interaction with the control adapter board 110. The control adapter plate 110 can observe the current detection state and the corresponding parameters through a screen arranged on the remote control host, and set the detection parameters through the remote control host. In detail, the electrical pin 108 may be connected with the control adapter plate 110 by means of welding. In addition, the electric needle 108 can also be electrically connected to a photoelectric detection system and a dew point refrigeration system through a cable.

The heat dissipation system includes a heat dissipation base 109 and a heat dissipation tail cover 112.

Specifically, the heat sink 109 is substantially cylindrical. The upper surface of the heat sink 109 is connected to the heat dissipating surface of the refrigeration structure 107 of the dew point refrigeration system so as to dissipate heat generated by the heat dissipating surface through the heat sink 109. Specifically, in order to facilitate heat dissipation, the heat sink 109 may be made of a metal material. As shown in fig. 4, in detail, a cavity 1091 is formed at the lower end of the heat sink 109.

Specifically, the heat dissipation tail cover 112 is sequentially provided with an aviation connector 111 and a control adapter plate 110 from bottom to top, and the aviation connector 111 is connected with the control adapter plate 110. In detail, the heat dissipating tail cap 112 is mounted on the lower end portion of the heat dissipating base 109, and the heat dissipating tail cap 112 may be connected to the heat dissipating base 109 by a screw.

When the heat dissipation tail cover 112 and the heat dissipation base 109 are mounted, the aviation connector 111 and the control adapter plate 110 are both located in the cavity 1091. In detail, the aeronautical interface 111 may also be connected to the electrical needle 108. In detail, the electrical pin 108 is inserted into the cavity 1091 and electrically connected to the control adapter plate 110, and the electrical pin 108 is connected to the heat sink 109 in an insulating manner. The electrical pins 108 can be inserted into the cavity 1091 from the upper end of the heat dissipation base 109.

Wherein, in order to prevent that vapor and air from getting into to cause the damage to dew point detector internal circuit and components and parts, avoid toxic gas to leak to the external world through cavity 1091, avoid electric needle 108 and radiating seat 109 electrically conductive, avoid being connected between electric needle 108 and the control keysets 110 and produce the dislocation, this application embodiment is filled with the sealant in cavity 1091. The sealant may be glue, and in detail, the sealant is filled in the cavity 1091, and the glue seals the cavity 1091.

In one embodiment, to prevent the electrical pin 108 and the heat sink 109 from conducting electricity, an insulating pad, which may be a rubber pad, may be disposed on the inner wall of the cavity 1091.

In one application embodiment, the electrical pins 108 and the control adapter plate 110 may be secured by a glass sintering process.

In one application embodiment, the hermetic seal between the electrical pin 108 and the heat sink 109 may be achieved by a glass sintering process.

The specific working process of the dew point detector is as follows: water vapor in the working environment sweeps over the upper surface of the dew condensation structure 103 as it passes through the detection chamber. When the temperature of the upper surface of the condensation structure 103 is higher than the dew point temperature of the gas, the upper surface of the condensation structure 103 is in a dry state. At this time, under the control of the control system, the photoelectric detection device 101 transmits a signal to the remote control host through the transfer control board 110 and the aviation connector 111, and receives a feedback signal from the remote control host, and the feedback signal is compared and amplified by the control loop to drive the refrigeration structure 107 to perform refrigeration. When the temperature of the upper surface of the condensation structure 103 is reduced to be lower than the dew point temperature of the gas, the upper surface of the condensation structure 103 begins to condense to form a condensate, at this time, the photoelectric detection device 101 continuously transmits a signal to the remote control host through the transfer control board 110 and the aviation connector 111, receives a feedback signal from the remote control host, compares and amplifies the feedback signal through the control loop according to the change of the feedback signal, adjusts the excitation current of the refrigeration structure 107, changes the refrigeration power of the refrigeration structure 107, and keeps the temperature of the upper surface of the condensation structure 103 at the dew point temperature of the gas. At this time, the temperature of the condensation structure 103 is detected by the thermometer 106, and the humidity in the gas can be obtained.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.