阅读说明：本技术 一种工业炉内温度比色测温装置 (Industrial furnace inner temperature colorimetric temperature measuring device ) 是由 徐立君 刘欢 陈福新 马坤武 李建娇 王彦峰 于 2019-11-11 设计创作，主要内容包括：本发明涉及一种工业炉内温度比色测温装置,包括：耐高温导光晶体管、光学耦合设备和测温组件,所述耐高温导光晶体管一端置于工业炉内,另一端连接所述光学耦合设备,所述光学耦合设备通过光纤连接所述测温组件；所述耐高温导光晶体管包括一陶瓷外管,所述陶瓷外管的内腔内设有导光晶体棒,所述导光晶体棒与所述陶瓷外管内壁之间填充有支撑物。本发明提供的工业炉内温度比色测温装置,通过光学耦合设备替代传统的分光装置,不仅结构简单,而且成本低、装配简单。(The invention relates to a temperature colorimetric temperature measuring device in an industrial furnace, which comprises: the temperature measurement device comprises a high-temperature-resistant light guide transistor, optical coupling equipment and a temperature measurement component, wherein one end of the high-temperature-resistant light guide transistor is arranged in the industrial furnace, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling equipment, and the optical coupling equipment is connected with the temperature measurement component through an optical fiber; the high-temperature-resistant light guide transistor comprises a ceramic outer tube, a light guide crystal rod is arranged in an inner cavity of the ceramic outer tube, and a support is filled between the light guide crystal rod and the inner wall of the ceramic outer tube. The industrial furnace temperature colorimetric temperature measuring device provided by the invention replaces the traditional light splitting device by the optical coupling equipment, and has the advantages of simple structure, low cost and simple assembly.)

1. A temperature colorimetric temperature measuring device in an industrial furnace is characterized by comprising: the temperature measurement device comprises a high-temperature-resistant light guide transistor, optical coupling equipment and a temperature measurement component, wherein one end of the high-temperature-resistant light guide transistor is arranged in the industrial furnace, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling equipment, and the optical coupling equipment is connected with the temperature measurement component through an optical fiber;

the high-temperature-resistant light guide transistor comprises a ceramic outer tube, a light guide crystal rod is arranged in an inner cavity of the ceramic outer tube, and a support is filled between the light guide crystal rod and the inner wall of the ceramic outer tube;

the temperature measurement component comprises: the optical coupling device is connected with a main optical fiber of a Y-shaped optical fiber, and two sub optical fibers of the Y-shaped optical fiber are respectively and sequentially connected with the optical filter and the photoelectric detector.

2. The industrial furnace temperature colorimetric temperature measurement device of claim 1, wherein the optical coupling device comprises: the outer wall of bucket type, it has lens to inlay in the outer wall inner chamber, the outer wall is equipped with water cooling equipment outward.

3. The temperature colorimetric temperature measuring device in the industrial furnace according to claim 2, wherein one end of the optical coupling device is connected with the inner wall of one end of the water cooling device through a thread, and the other end of the water cooling device is connected to the high temperature resistant light guide transistor through a thread.

4. The industrial furnace temperature colorimetric temperature measuring device according to claim 3, wherein a water inlet of the water cooling device is connected with a water pump through a pipeline, and the water pump is connected with a control device.

5. The industrial furnace temperature colorimetric temperature measuring device according to claim 4, wherein a temperature sensor is arranged on the water cooling equipment, and the temperature sensor is connected with the control equipment.

Technical Field

The invention relates to the field of temperature measuring equipment, in particular to a colorimetric temperature measuring device for the temperature in an industrial furnace.

Background

The industrial temperature measurement and high-temperature section temperature measurement are usually carried out by a colorimetric temperature measurement method, the temperature measurement range is large, the anti-interference capability is high, for the colorimetric temperature measurement method, a light splitting device is usually required, and a filtering device is required to be added in front of a detector. The light splitting device conducts the luminous flux by adopting an optical fiber, and the light splitting system is composed of a plurality of semi-reflecting and semi-transparent lenses and optical lenses arranged behind the light splitting device to split the luminous flux into two paths.

The light splitting device has a complex structure and high cost, and is not beneficial to popularization and use.

Disclosure of Invention

The invention aims to solve the problems of complex structure and high cost of the existing colorimetric temperature measuring device, and adopts the technical scheme that: an industrial furnace temperature colorimetric temperature measuring device, comprising: the temperature measurement device comprises a high-temperature-resistant light guide transistor, optical coupling equipment and a temperature measurement component, wherein one end of the high-temperature-resistant light guide transistor is arranged in the industrial furnace, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling equipment, and the optical coupling equipment is connected with the temperature measurement component through an optical fiber;

the high-temperature-resistant light guide transistor comprises a ceramic outer tube, a light guide crystal rod is arranged in an inner cavity of the ceramic outer tube, and a support is filled between the light guide crystal rod and the inner wall of the ceramic outer tube; the temperature measurement component comprises: the optical coupling device is connected with a main optical fiber of a Y-shaped optical fiber, and two sub optical fibers of the Y-shaped optical fiber are respectively and sequentially connected with the optical filter and the photoelectric detector.

In a further refinement, the optical coupling device comprises: the outer wall of bucket type, it has lens to inlay in the outer wall inner chamber, the outer wall is equipped with water cooling equipment outward.

The improved structure is characterized in that one end of the optical coupling device is in threaded connection with the inner wall of one end of the water cooling device, and the other end of the water cooling device is in threaded connection with the high-temperature-resistant light guide transistor.

The water cooling device is characterized in that a water inlet of the water cooling device is connected with a water pump through a pipeline, and the water pump is connected with a control device.

The improved water cooling device is characterized in that a temperature sensor is arranged on the water cooling device and connected with the control device.

The invention has the beneficial effects that:

according to the temperature colorimetric temperature measuring device in the industrial furnace, the luminous flux is directly coupled into the optical fiber through the optical coupling equipment, and then the luminous flux is uniformly divided into two beams in the Y shape, so that a light splitting device is not needed, the structure is simple, the cost is low, and the assembly is simple.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a temperature colorimetric measuring device for measuring temperature in an industrial furnace according to the present invention;

FIG. 2 is a schematic diagram of a structure of a high temperature-resistant light-guiding transistor according to the present invention;

FIG. 3 is a schematic diagram of the optical coupling device of the present invention;

FIG. 4 is a schematic structural diagram of the water cooling apparatus of the present invention;

FIG. 5 is a schematic diagram of the water cooling cycle of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

As shown in fig. 1, the present invention provides a colorimetric temperature measuring device for temperature in an industrial furnace, comprising: the high-temperature-resistant light guide device comprises a high-temperature-resistant light guide transistor 1, an optical coupling device 2 and a temperature measurement component 3, wherein one end of the high-temperature-resistant light guide transistor 1 is arranged in an industrial furnace 100, the other end of the high-temperature-resistant light guide transistor is connected with the optical coupling device 2 and used for collecting light rays in the furnace and guiding the light rays to the other end of the high-temperature-resistant transistor to be connected into the optical coupling device, and the optical coupling device 2 is connected with the;

as shown in fig. 2, the high temperature resistant light guide transistor 1 includes: the light guide structure comprises a ceramic outer tube 11, wherein a light guide crystal rod 12 arranged along the extension direction of the ceramic outer tube is arranged in an inner cavity of the ceramic outer tube, and a support 13 is filled between the light guide crystal rod 12 and the inner wall of the ceramic outer tube 11. Specifically, the ceramic outer tube may be made of zirconia (ZrO2) -based ceramic or Zirconia Toughened Alumina (ZTA), the light-guiding crystal rod is an alumina crystal rod, and the support filled between the light-guiding crystal rod and the inner wall of the ceramic outer tube may be any high-temperature-resistant powder, such as: zirconia powder, alumina powder, or the like. In this embodiment, the filler is made of alumina powder, and when the crystal rod and the filler powder are made of the same material, the crystal rod and the filler powder have the same expansion and absorption parameters, so that the crystal rod and the filler powder can be well combined, and the generated thermal stress is also small, so that the high-temperature-resistant light-guiding transistor has strong thermal shock and thermal shock resistance.

Meanwhile, in order to facilitate the connection between the high-temperature-resistant light guide transistor and the optical coupling device, a connecting end 14 is installed at one end of the high-temperature-resistant light guide transistor, the light guide crystal rod extends out of the connecting end, the connecting end is in threaded connection with the optical coupling device, and when the water cooling device is arranged outside the optical coupling device, the connecting end is connected with the water cooling device arranged outside the optical coupling device in a threaded connection mode.

The device replaces the traditional light splitting device through the optical coupling equipment, and has the advantages of simple structure, low cost and simple assembly.

As shown in fig. 1, in a further improvement, the temperature measuring component 3 includes: the optical coupling device comprises a signal processing device 31, two optical filters 34 and two photoelectric detectors 32, wherein the two photoelectric detectors 32 are connected with the signal processing device 31, the optical coupling device 2 is connected with a main optical fiber 6 of a Y-shaped optical fiber, and two sub optical fibers 61 of the Y-shaped optical fiber are respectively and sequentially connected with the optical filters 34 and the photoelectric detectors 32. The method comprises the steps of firstly coupling light flux into a Y-shaped optical fiber through optical coupling equipment, then dividing a light beam into two paths in the Y-shaped optical fiber, placing a light filtering device comprising an optical filter in each divided light path, filtering out a part of the light flux, enabling the specific light flux to irradiate a photoelectric detector, enabling the photoelectric detector to receive photoelectric signals, converting the photoelectric signals through signal processing equipment, and finally obtaining a temperature value of the surface of an object through processes of amplification, filtering, calculation and the like and displaying the temperature value through display equipment connected with the signal processing equipment. Wherein, the signal processing equipment is a singlechip or a computer.

As shown in fig. 3, the optical coupling device 2 is further improved to include: the outer wall 21 of bucket type, it has two lenses 23 to inlay in the outer wall 21 inner chamber 22, be equipped with water cooling plant 4 outside outer wall 21. The water cooling equipment continuously cools the optical coupling equipment through circulating water.

As shown in fig. 4, in a further modification, one end of the water cooling device 4 along the extending direction of the optical coupling device 2 is provided with a water inlet 41, and the other end is provided with a water outlet 42. The inlet 41 and outlet 42 are connected by pipes to a reservoir or other container.

The further improvement is that one end of the optical coupling device 2 is in threaded connection with the inner wall of one end of the water cooling device 4, and the other end of the water cooling device 4 is in threaded connection with the high-temperature-resistant light guide transistor 1. Specifically, as shown in the figure, the inner wall of the right end of the water cooling device 4 has an internal thread 43, and the outer wall of the right end of the optical coupling device 2 has an external thread 24 matching with the internal thread, and the two are connected by thread fit. The left end of the water cooling device 4 has an external thread 44, and is connected to the high temperature resistant light guide transistor 1 through the external thread 44.

As shown in fig. 5, the improvement is that the water inlet 41 is connected with a water pump 45 through a pipeline, and the water pump 45 is connected with a control device 47. In this embodiment, controlgear is the singlechip for the operating condition of control water pump makes the hydrologic cycle in the water cooling plant rapider through the water pump, improves cooling efficiency. The heat conducted by the high-temperature-resistant light-conducting transistor in the industrial furnace is contacted with the front end of the water cooling equipment and is taken away through water cooling circulation. The heat radiated from the outer wall of the industrial furnace is directly absorbed by the outer wall of the water cooling equipment and is taken away through water cooling circulation, so that the optical coupling equipment is effectively protected, and although the temperature in the furnace reaches more than 1500 ℃, and the temperature of the outer wall of the industrial furnace also reaches more than 150 ℃, the optical coupling equipment can be effectively protected by the water cooling equipment, and the radiation flux in the furnace can be effectively transmitted out.

The temperature in the industrial furnace changes along with the industrial process, and the internal temperature of the water cooling system is kept below 150 ℃ so as to ensure the normal operation of the optical coupling equipment. The water circulation speed is lower when the temperature is low, and is higher when the temperature in the industrial furnace is high. In order to control the speed of the water circulation, in this embodiment, the water cooling device is provided with a temperature sensor 46, and the temperature sensor 46 is connected to the control device 47. At least one temperature value is preset in the control equipment, and when the temperature measured by the temperature sensor is higher than the temperature value, the control equipment improves the working power of the water pump so as to improve the rotating speed of the water pump and accelerate the water circulation speed in the water cooling equipment. In another embodiment, a plurality of temperature values are preset in the control device, if the measured water temperature is lower than 100 ℃, the water pump can not work, the rotating speed of the water pump is gradually increased along with the increase of the measured temperature value, when the measured temperature exceeds 150 ℃, the control device can drive the alarm to give an alarm, and at the moment, the fan can be started, and air cooling is used for assisting in cooling. Specifically, when the temperature measured by the temperature sensor is less than 100 ℃, the rotating speed of the water pump is 0 (not working); when the temperature measured by the temperature sensor is less than 110 ℃, the rotating speed of the water pump is 1; the temperature measured by the temperature sensor at 110 ℃ is less than 120 ℃, and the rotating speed of the water pump is 2; the temperature measured by the temperature sensor at 120 ℃ is less than 130 ℃, and the rotating speed of the water pump is 3; the temperature measured by the temperature sensor at 130 ℃ is less than 140 ℃, and the rotating speed of the water pump is 4; the temperature measured by the temperature sensor at 140 ℃ is less than 150 ℃, and the rotating speed of the water pump is 5; when the temperature sensor measures the temperature at 150 ℃, the alarm gives an alarm.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.