CN219956744U - Mining intrinsic safety type temperature sensor - Google Patents
Mining intrinsic safety type temperature sensor Download PDFInfo
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- CN219956744U CN219956744U CN202321151704.XU CN202321151704U CN219956744U CN 219956744 U CN219956744 U CN 219956744U CN 202321151704 U CN202321151704 U CN 202321151704U CN 219956744 U CN219956744 U CN 219956744U
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- heat exchange
- box
- exchange tube
- temperature sensor
- intrinsic safety
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- 238000005065 mining Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- BNWCETAHAJSBFG-UHFFFAOYSA-N tert-butyl 2-bromoacetate Chemical compound CC(C)(C)OC(=O)CBr BNWCETAHAJSBFG-UHFFFAOYSA-N 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims 2
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims 2
- 238000009423 ventilation Methods 0.000 abstract description 11
- 230000007246 mechanism Effects 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000191 radiation effect Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to a mining intrinsic safety type temperature sensor, which comprises: the heat exchange device comprises an electric box, a heat exchange tube, a heat exchange box and an exhaust fan. Wherein: and a temperature sensor body is arranged in the electrical box. The side wall of the electrical box is fixedly provided with a signal output end and a signal input end, and the outer wall of the electrical box is provided with ventilation holes. The heat exchange tube is a straight tube with two closed ends, and liquid working media which are heated and evaporated are stored in the straight tube. The lower part of the heat exchange tube passes through the top wall of the electric box and then is positioned in the inner cavity of the electric box, and the outer wall of the heat exchange tube is fixedly connected with the top wall of the electric box. The upper end of the heat exchange tube passes through the bottom surface of the heat exchange box and is positioned in the inner cavity of the heat exchange box and fixedly connected with the heat exchange box, the left end and the right end of the heat exchange box are both in an opening shape, and the exhaust fan is fixedly connected to one port of the heat exchange box. The utility model can not only strengthen the heat radiation effect by utilizing the heat pipe cooling technology, but also avoid the problem that an auxiliary ventilation mechanism on the sensor is easy to cause frequent replacement and cleaning of the filter screen.
Description
Technical Field
The utility model relates to the technical field of temperature sensors, in particular to a mining intrinsic safety type temperature sensor.
Background
In dangerous environments such as mines, the use of the sensor can be safe, accidents are reduced, temperature sensors are required to be installed on the surfaces of equipment such as motors and water pumps under the mines, which are required to measure the temperature, equipment damage caused by overhigh temperature is avoided, and because the environment under the mines is special, combustible factors such as gas, coal dust and other explosion factors exist, the equipment is monitored to prevent high temperature and even fire, and the equipment is beneficial to preventing gas explosion and is very important for underground safe production.
The temperature sensor can generate heat in the electrical box of the temperature sensor in the working process, and the heat is usually discharged through the radiating holes on the electrical box, and the mine is not smooth in ventilation, so that the radiating effect of the radiating mode is poor, and the heat is accumulated in the electrical box easily to influence the working and the sensitivity of the sensor. Some existing improved temperature sensors are provided with an auxiliary ventilation mechanism on the electrical box, which enhances the heat emission by introducing external air into the electrical box, however, the mode easily causes dust in a mine to enter the electrical box, and the filter screen is additionally arranged, so that the problems are solved, but the filter screen needs to be frequently replaced and cleaned due to high dust content in the mine, so that the temperature sensor has the problems of high maintenance cost, inconvenient use and the like.
Disclosure of Invention
The utility model provides a mining intrinsic safety type temperature sensor, which not only can strengthen the heat dissipation effect by utilizing the heat pipe cooling technology, but also avoids the problems that an auxiliary ventilation mechanism on the sensor is easy to cause frequent replacement and cleaning of a filter screen. In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an intrinsically safe temperature sensor for mining, comprising: the heat exchange device comprises an electric box, a heat exchange tube, a heat exchange box and an exhaust fan. Wherein; and a temperature sensor body is arranged in the electrical box and used for monitoring the temperature. The side wall of the electric appliance box is fixedly provided with a signal output end and a signal input end, and the outer wall of the electric appliance box is provided with air holes for ventilation of the inside and the outside of the electric appliance box. The heat exchange tube is a straight tube with two closed ends, and liquid working media which are heated and evaporated are stored in the straight tube. The lower part of the heat exchange tube passes through the top wall of the electric box and then is positioned in the inner cavity of the electric box, and the outer wall of the heat exchange tube is fixedly connected with the top wall of the electric box. The upper end of the heat exchange tube passes through the bottom surface of the heat exchange box and is positioned in the inner cavity of the heat exchange box and fixedly connected with the bottom surface of the heat exchange box, so that the heat exchange box is supported and fixed above the electric box by the heat exchange tube. The left end and the right end of the heat exchange box are both in an opening shape, and the exhaust fan is fixedly connected to one port of the heat exchange box, so that external air can quickly flow through the heat exchange box.
Further, a mounting plate is connected to the side wall of the electrical box, and a mounting hole is formed in the mounting plate so as to connect the electrical box to an electrical appliance.
Further, a display screen is arranged on the front wall surface of the electric appliance box, and the display screen is connected with a temperature sensor body arranged in the electric appliance box so as to display detection data, parameters and the like.
Further, a positioning block is fixed on the side wall of the heat exchange tube, and external threads are arranged on the side wall of the heat exchange tube below the positioning block. The heat exchange tube fixing device further comprises a fastening nut which is positioned on the lower surface of the top wall, is in threaded connection with the outer wall of the heat exchange tube, and enables the positioning block to be tightly attached to the upper surface of the top wall, so that the heat exchange tube can be detachably fixed on the top wall of the electrical box.
Further, the liquid working medium comprises any one of water, methanol, diethyl ether, tert-butyl bromoacetate and the like, and is evaporated into a gaseous state after being heated, and the gaseous state rises to the upper part of the heat exchange tube and exchanges heat with air flowing in the heat exchange box to cool.
Further, the content of the liquid working medium in the heat exchange tube is 15-30% of the volume of the inner cavity of the heat exchange tube.
Further, the heat exchange tube is made of any one of copper, stainless steel, aluminum alloy and the like, and has good heat conductivity and rigidity, so that the heat exchange box and the exhaust fan can be supported conveniently.
Further, the heat exchange box is made of any one of copper, stainless steel, aluminum alloy and the like, has good heat dissipation performance, and can better protect the heat exchange tube.
Further, the top wall of the electric box is detachably connected with the upper port of the electric box, so that the heat exchange tube and the heat exchange box are integrally detached from the electric box.
Compared with the prior art, the utility model has the following beneficial effects: according to the mining intrinsic safety type temperature sensor, the heat exchange tube of which the tube cavity stores liquid working media evaporated by heating is arranged on the top wall of the electrical box of the temperature sensor, and the lower part of the heat exchange tube is arranged in the electrical box. The liquid working medium absorbs heat and evaporates under the action of heat in the electric box, then rises to enter the upper part of the heat exchange tube and exchanges heat with air passing through the heat exchange box quickly, so that the electric box is transferred to the outside. Meanwhile, the gaseous working medium is cooled and then becomes liquid again to enter the lower part of the heat exchange tube, so that the heat dissipation effect can be enhanced, and external air can not be introduced into the electric appliance box by means of the ventilation mechanism during heat dissipation, thereby avoiding the defect that the filter screen needs to be replaced frequently when some sensors in the prior art dissipate heat through the auxiliary ventilation mechanism.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a schematic structural diagram of an intrinsic safety type temperature sensor for mines in the following embodiment.
Fig. 2 is a schematic view showing a partial internal structure of an intrinsic safety type temperature sensor for mines in the following embodiment.
Fig. 3 is a schematic diagram showing the assembly structure of the heat exchange tube 2 and the electrical box 1 in the following embodiment.
The label marks in the figures represent: 1-electrical box, 2-heat exchange tube, 3-heat exchange box, 4-exhaust fan, 5-mounting plate, 6-mounting hole, 7-display screen, 8-locating piece, 9-fastening nut, 101-signal output end, 102-signal input end, 103-bleeder vent.
Detailed Description
It should be noted that, for convenience of description, the words "upper", "lower", "left" and "right" in the present utility model, if they mean only that the directions are consistent with the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to needs to have a specific orientation, and is constructed and operated in a specific orientation, and thus the limitation of the present utility model is not to be construed. The mining intrinsic safety type temperature sensor of the present utility model is further described with reference to the accompanying drawings and specific examples.
Referring to fig. 1 and 2, an example mining intrinsic safety type temperature sensor includes: the heat exchange box comprises an electric box 1, a heat exchange tube 2, a heat exchange box 3 and an exhaust fan 4. Wherein;
a temperature sensor body is arranged in the electrical box 1 and is used for temperature monitoring. A signal output end 101 and a signal input end 102 are fixed on the side wall of the electrical box 1, and an air vent 103 is arranged on the outer wall of the electrical box 1 and used for ventilation of the inside and the outside of the electrical box 1. The temperature sensor including the above components or similar temperature sensors are prior art, and have been widely used in various fields, such as model GYW/50, GWB85, and other mining temperature sensors, and this embodiment will not be described in detail.
The heat exchange tube 2 is a straight tube with two closed ends, and liquid working media evaporated by heating are stored in the straight tube. Wherein: the liquid working medium comprises any one of water, methanol, diethyl ether, tert-butyl bromoacetate and the like. It should be understood that other suitable liquid working media can be selected according to the internal temperature when the actual temperature sensor works, and the boiling point of the liquid working media should be lower than the internal temperature when the temperature sensor works, so that the liquid working media evaporate into a gaseous state after being heated, and heat exchange and cooling are performed between the liquid working media and the air flowing in the heat exchange box 3 after the liquid working media rise to the upper part of the heat exchange tube 2. The content of the liquid working medium in the heat exchange tube 2 is 15-30% of the volume of the inner cavity, such as 15%, 20%, 25%, 30% and the like. The heat exchange tube 2 may be made of copper, stainless steel, aluminum alloy, etc., and has good heat conductivity and rigidity, so as to support the heat exchange box 3 and the exhaust fan 4.
The lower part of the heat exchange tube 2 passes through the top wall of the electrical box 1 and then is positioned in the inner cavity of the electrical box, and the outer wall of the heat exchange tube 2 is fixedly connected with the top wall of the electrical box 1. The length of the heat exchange tube 2 entering the electric box 1 can be selected between 3 cm and 6cm, the inner diameter of the heat exchange tube 2 can be selected between 3 mm and 7mm, and other suitable lengths and inner diameters can be selected according to the size of the electric box 1. The upper end of the heat exchange tube 2 passes through the bottom surface of the heat exchange box 3 and is positioned in the inner cavity of the heat exchange box and fixedly connected with the heat exchange box by welding, so that the heat exchange box 3 is supported and fixed above the electric box 1 by the heat exchange tube 2. The left end and the right end of the heat exchange box 3 are both in an opening shape, and the air fan 4 is fixedly connected to one port of the heat exchange box 3, so that external air can quickly flow through the heat exchange box 3. The heat exchange box 3 may be made of copper, stainless steel, aluminum alloy, etc. and has excellent heat dissipation performance, and may protect the heat exchange pipe 2 and prevent damage to the heat exchange pipe 2 caused by collision.
When the heat exchange device works, liquid working medium in the heat exchange tube 2 absorbs heat and evaporates under the action of heat in the electric box 1, then rises to enter the upper part of the heat exchange tube 2 and exchanges heat with air passing through the heat exchange box 3 quickly, so that the electric box 1 is transferred to the outside. Meanwhile, the gaseous working medium is cooled and then changed into liquid again to enter the lower part of the heat exchange tube 2, so that the heat dissipation effect can be enhanced, and external air can not be introduced into the electric box 1 by means of the ventilation mechanism during heat dissipation, thereby avoiding the defect that the filter screen needs to be replaced frequently when some sensors in the prior art dissipate heat through the auxiliary ventilation mechanism. In addition, the exposed part of the heat exchange tube 2 is also helpful for conducting heat and dissipating heat in the outside air.
In another embodiment, for the mining intrinsic safety type temperature sensor, in order to facilitate adding the liquid working medium into the heat exchange tube 2, an upper port of the heat exchange tube 2 may be further provided with a structure temporarily sealed by a sealing cover, and the sealing cover is in threaded connection with the upper port of the heat exchange tube 2.
In another embodiment, a mounting plate 5 is connected to the side wall of the electrical box 1 of the mining intrinsic safety type temperature sensor, and a mounting hole 6 is formed in the mounting plate 5 so as to connect the electrical box 1 to an electrical appliance. The front wall surface of the electrical box 1 is provided with a display screen 7, and the display screen 7 is connected with a temperature sensor body arranged in the electrical box 1 so as to display detection data, parameters and the like.
In another embodiment, referring to fig. 1 and 3, the top wall of the electrical box 1 of the mining intrinsic safety type temperature sensor is detachably connected with the upper port of the electrical box, so that the heat exchange tube 2 and the heat exchange box 3 are integrally detached from the electrical box 1. Meanwhile, a circular positioning block 8 is fixed on the side wall of the heat exchange tube 2, and external threads are arranged on the side wall of the heat exchange tube 2 below the circular positioning block. The heat exchange box further comprises a fastening nut 9 which is positioned on the lower surface of the top wall of the electric box 1, is in threaded connection with the outer wall of the heat exchange tube 2, and enables the positioning block 8 to be tightly adhered to the upper surface of the top wall, so that the heat exchange tube 2 can be detachably fixed on the top wall of the electric box 1, and the whole installation, replacement, maintenance and the like of the heat exchange tube 2 and the heat exchange box 3 are facilitated.
Finally, it should be noted that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.
Claims (10)
1. An intrinsically safe temperature sensor for mining, comprising: the heat exchange device comprises an electric box, a heat exchange tube, a heat exchange box and an exhaust fan; wherein; a temperature sensor body is arranged in the electrical box; a signal output end and a signal input end are fixed on the side wall of the electric appliance box, and air holes are formed in the outer wall of the electric appliance box; the heat exchange tube is a straight tube with two closed ends, and liquid working media evaporated by heating are stored in the straight tube; the lower part of the heat exchange tube passes through the top wall of the electric box and then is positioned in the inner cavity of the electric box, and the outer wall of the heat exchange tube is fixedly connected with the top wall of the electric box; the upper end of the heat exchange tube passes through the bottom surface of the heat exchange box and is positioned in the inner cavity of the heat exchange box, and the upper end and the heat exchange tube are fixedly connected; the left end and the right end of the heat exchange box are both in an opening shape, and the exhaust fan is fixedly connected to one port of the heat exchange box.
2. The mining intrinsic safety type temperature sensor according to claim 1, wherein a mounting plate is connected to the side wall of the electrical box, and mounting holes are formed in the mounting plate.
3. The mining intrinsic safety type temperature sensor according to claim 1, wherein a display screen is arranged on the front wall surface of the electrical box and is connected with a temperature sensor body arranged in the electrical box.
4. The mining intrinsic safety type temperature sensor according to claim 1, wherein the top wall of the electrical box is detachably connected with the upper port of the electrical box.
5. The mining intrinsic safety type temperature sensor according to claim 4, wherein a positioning block is fixed on the side wall of the heat exchange tube, and external threads are arranged on the side wall of the heat exchange tube below the positioning block;
the heat exchange tube fixing device further comprises a fastening nut which is positioned on the lower surface of the top wall, is in threaded connection with the outer wall of the heat exchange tube, and enables the positioning block to be tightly attached to the upper surface of the top wall, so that the heat exchange tube can be detachably fixed on the top wall of the electrical box.
6. The mining intrinsic safety type temperature sensor according to claim 1, wherein the liquid working medium comprises any one of water, methanol, diethyl ether and tert-butyl bromoacetate.
7. The mining intrinsic safety type temperature sensor according to claim 1, wherein the content of the liquid working medium in the heat exchange tube is 15-30% of the volume of an inner cavity of the heat exchange tube.
8. The mining intrinsic safety type temperature sensor according to claim 1, wherein the upper port of the heat exchange tube is temporarily closed by a sealing cover, and the sealing cover is in threaded connection with the upper port of the heat exchange tube.
9. The mining intrinsic safety type temperature sensor according to any one of claims 1 to 8, wherein the heat exchange tube is made of any one of copper, stainless steel and aluminum alloy.
10. The mining intrinsic safety type temperature sensor according to any one of claims 1 to 8, wherein the heat exchange box is made of any one of copper, stainless steel and aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321151704.XU CN219956744U (en) | 2023-05-15 | 2023-05-15 | Mining intrinsic safety type temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321151704.XU CN219956744U (en) | 2023-05-15 | 2023-05-15 | Mining intrinsic safety type temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219956744U true CN219956744U (en) | 2023-11-03 |
Family
ID=88550633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321151704.XU Active CN219956744U (en) | 2023-05-15 | 2023-05-15 | Mining intrinsic safety type temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219956744U (en) |
-
2023
- 2023-05-15 CN CN202321151704.XU patent/CN219956744U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 102, Building 27, Phase III, Zhongnan High tech, No. 8 Zidong Avenue, Tianqiao District, Jinan City, Shandong Province, China, 250119 Patentee after: SHANDONG COAL ELECTRIC Co.,Ltd. Country or region after: China Address before: No.20, Xinsha North Road, Huaiyin District, Jinan City, Shandong Province Patentee before: SHANDONG COAL ELECTRIC Co.,Ltd. Country or region before: China |