CN219956730U - Thermocouple with high temperature protection function - Google Patents
Thermocouple with high temperature protection function Download PDFInfo
- Publication number
- CN219956730U CN219956730U CN202320974996.0U CN202320974996U CN219956730U CN 219956730 U CN219956730 U CN 219956730U CN 202320974996 U CN202320974996 U CN 202320974996U CN 219956730 U CN219956730 U CN 219956730U
- Authority
- CN
- China
- Prior art keywords
- heat
- tube
- thermocouple
- pipe
- protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a thermocouple with a high-temperature protection function, and belongs to the technical field of temperature measuring elements. The thermocouple comprises a junction box, a protection tube, an insulating tube, a thermocouple working end, a heat dissipation tube cover, a protection sleeve and a heat conduction tube; the protection tube is arranged at the bottom of the junction box, the working end of the thermocouple is arranged at the inner bottom of the protection tube, and the thermocouple is connected with the junction box through a thermocouple wire arranged in the insulation tube; the heat-conducting pipe is sleeved outside the insulating pipe, heat-conducting columns are uniformly arranged on the outer wall of the top of the heat-conducting pipe, the protective sleeve is arranged between the heat-conducting pipe and the protective pipe and is positioned below the heat-conducting columns, the heat-radiating pipe cover breaks the protective pipe and is arranged outside the heat-conducting columns, and heat-radiating holes are formed in the side walls of the heat-radiating pipe cover. The utility model can rapidly dissipate heat and improve the high temperature resistance of the protection tube and the stability of the working end of the thermocouple.
Description
Technical Field
The utility model belongs to the technical field of temperature measuring elements, and particularly relates to a thermocouple with a high-temperature protection function.
Background
The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures the temperature, converts a temperature signal into a thermoelectromotive signal, and converts the thermoelectromotive signal into the temperature of a measured medium through an electric instrument (secondary instrument), but the conventional thermocouple is rapidly heated but is difficult to rapidly dissipate heat when being used in a high-temperature element, and finally, the working stability and the service life of the thermocouple are influenced, so that certain defects exist.
CN202021193419.0 discloses a high temperature resistant thermocouple, which realizes the protection of an insulating bead pipe and an electrothermal end by being provided with a first protection pipe and a second protection pipe, so that the thermocouple can work normally and avoid damage, but the thermocouple can not improve the high temperature resistant effect of the protection pipe when in use, the high temperature resistance of the thermocouple is general, and the heat received by the protection pipe can not be dissipated when in use. Therefore, there is a need for a thermocouple with a high temperature protection function.
Disclosure of Invention
The technical problems to be solved are as follows: aiming at the technical problems, the utility model provides the thermocouple with the high-temperature protection function, which can rapidly dissipate heat and improve the high-temperature resistance of the protection tube and the stability of the working end of the thermocouple.
The technical scheme is as follows: a thermocouple with high temperature protection function comprises a junction box, a protection tube, an insulating tube, a thermocouple working end, a heat dissipation tube cover, a protection sleeve and a heat conduction tube; the protection tube is arranged at the bottom of the junction box, the working end of the thermocouple is arranged at the inner bottom of the protection tube, and the thermocouple is connected with the junction box through a thermocouple wire arranged in the insulation tube; the heat-conducting pipe is sleeved outside the insulating pipe, heat-conducting columns are uniformly arranged on the outer wall of the top of the heat-conducting pipe, the protective sleeve is arranged between the heat-conducting pipe and the protective pipe and is positioned below the heat-conducting columns, the heat-radiating pipe cover breaks the protective pipe and is arranged outside the heat-conducting columns, and heat-radiating holes are formed in the side walls of the heat-radiating pipe cover.
Preferably, the upper end face and the lower end face of the heat dissipation pipe cover are fixedly connected with the protection pipe.
Preferably, the inner wall of the protection tube is fixedly connected with the outer wall of the protection sleeve, and the inner wall of the protection sleeve is fixedly connected with the outer wall of the heat conduction tube.
Preferably, the material of the protective sleeve is tungsten steel.
Preferably, the protection pipe includes an upper protection pipe and a lower protection pipe connected by a flange.
Preferably, the side wall of the junction box is provided with an outgoing line pipe sleeve.
Preferably, a wiring insulation seat is arranged at the inner bottom of the junction box, and the wiring insulation seat is detachably connected with the insulation pipe.
The beneficial effects are that: the utility model can rapidly dissipate heat and improve the stability of the working end of the thermocouple. Specifically, can improve the high temperature resistant effect of protection tube through setting up the protective sheath to the heat pipe can conduct its heat that receives in the protective sheath, then carries out the diffusion through the heat conduction post and dispels the heat, and the louvre of heat dissipation tube housing can help the heat to outside dissipation, thereby effectively improve the high temperature resistant effect of protection tube, realizes quick heat dissipation, has finally improved thermocouple operating end's job stabilization nature.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a partial cross-sectional structure of the present utility model;
FIG. 3 is a schematic view of the structure of the protective sleeve and the internal heat pipe according to the present utility model;
FIG. 4 is a schematic top view of the protective sleeve and the inner heat pipe of the present utility model;
the reference numerals in the drawings indicate the following meanings: 1. junction box, 2, protection tube, 3, insulating tube, 4, thermocouple working end, 5, radiator tube cover, 6, protective sleeve, 7, heat conducting tube, 8, heat conducting column, 11, lead wire sleeve, 12, wiring insulating base, 21, upper protection tube, 22, lower protection tube, 23, flange.
Description of the embodiments
The utility model will be further described with reference to the drawings and the specific examples.
Example 1
As shown in fig. 1 and 2, a thermocouple with a high temperature protection function includes a junction box 1, a protection tube 2, an insulating tube 3, a thermocouple working end 4, a heat dissipation tube cover 5, a protection sleeve 6, and a heat conduction tube 7.
The protection tube 2 is fixedly connected with the bottom of the junction box 1 and comprises an upper protection tube 21 and a lower protection tube 22, and the upper protection tube 21 and the lower protection tube 22 are connected through a flange 23. The terminal box 1 is characterized in that a wiring insulation seat 12 is arranged at the inner bottom of the terminal box 1 and below the terminal, a lead-out wire sleeve 11 is arranged on the side wall of the terminal insulation seat 12 and the insulation tube 3 are detachably connected. The thermocouple working end 4 is positioned at the inner bottom of the protection tube 2 and is connected with a binding post in the junction box 1 through a thermocouple wire arranged in the insulation tube 3.
The insulating tube 3 is sleeved with the heat conducting tube 7, heat conducting columns 8 are uniformly arranged on the outer wall of the top of the heat conducting tube 7, and 4 rows of the heat conducting columns 8 are uniformly formed along the circumferential direction of the outer wall of the heat conducting tube 7, and 7 heat conducting columns are uniformly arranged from top to bottom. The protective sleeve 6 is made of tungsten steel, is arranged between the heat conduction pipe 7 and the protective pipe 2, and is positioned below the heat conduction column 8. The heat dissipation pipe cover 5 is arranged outside the heat conduction column 8 by disconnecting the protection pipe 2, and the side wall of the heat dissipation pipe cover is provided with heat dissipation holes. The upper end face and the lower end face of the heat dissipation pipe cover 5 are fixedly connected with the protection pipe 2. The inner wall of the protection tube 2 is fixedly connected with the outer wall of the protection sleeve 6, and the inner wall of the protection sleeve 6 is fixedly connected with the outer wall of the heat conduction tube 7.
In use, the lower protective tube 22 is placed in a heat source and the temperature of the heat source is detected by the thermocouple operating end 4. The thermocouple operating end 4 connects two different conductors or semiconductors in a closed loop, when the temperatures of the two junctions are different, an electromotive force is generated in the loop, and then the connected display instrument indicates the electromotive force generated by the thermocouple. The upper protection tube 21 and the lower protection tube 22 mainly play the effect of protecting the insulating tube 3 when in use, the protection sleeve 6 can improve the high temperature resistant effect of the protection tube 2 when in use, and the heat conducting tube 7 can conduct the heat received by the protection sleeve 6, then the heat conducting tube 8 can be used for diffusing and removing heat, the heat radiating tube cover 5 can help the heat conducting tube 7 and the heat conducting tube 8 to dissipate the heat when in use, thereby effectively improving the high temperature resistant effect of the protection tube 2 and improving the working stability of the thermocouple working end 4.
Claims (7)
1. The thermocouple with the high-temperature protection function is characterized by comprising a junction box (1), a protection tube (2), an insulating tube (3), a thermocouple working end (4), a heat dissipation tube cover (5), a protective sleeve (6) and a heat conduction tube (7); the protection tube (2) is arranged at the bottom of the junction box (1), the thermocouple working end (4) is arranged at the inner bottom of the protection tube (2), and is connected with the junction box (1) through a thermocouple wire arranged in the insulation tube (3); the heat-conducting pipe (7) is sleeved outside the insulating pipe (3), heat-conducting columns (8) are uniformly arranged on the outer wall of the top of the heat-conducting pipe (7), the protective sleeve (6) is arranged between the heat-conducting pipe (7) and the protective pipe (2) and is positioned below the heat-conducting columns (8), the heat-radiating pipe cover (5) is disconnected, the protective pipe (2) is arranged outside the heat-conducting columns (8), and heat-radiating holes are formed in the side walls of the heat-radiating pipe cover.
2. The thermocouple with the high-temperature protection function according to claim 1, wherein the upper end face and the lower end face of the heat dissipation tube cover (5) are fixedly connected with the protection tube (2).
3. Thermocouple with high temperature protection function according to claim 1, characterized in that the inner wall of the protection tube (2) is fixedly connected with the outer wall of the protection sleeve (6), and the inner wall of the protection sleeve (6) is fixedly connected with the outer wall of the heat conducting tube (7).
4. Thermocouple with high temperature protection function according to claim 1, characterized in that the material of the protective sleeve (6) is tungsten steel.
5. Thermocouple with high temperature protection according to claim 1, characterized in that the protection tube (2) comprises an upper protection tube (21) and a lower protection tube (22) connected by a flange (23).
6. Thermocouple with high temperature protection function according to claim 1, characterized in that the side wall of the junction box (1) is provided with a lead-out tube sleeve (11).
7. Thermocouple with high temperature protection function according to claim 1, characterized in that the inner bottom of the junction box (1) is provided with a wire insulation seat (12), the wire insulation seat (12) being detachably connected with the insulation tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974996.0U CN219956730U (en) | 2023-04-26 | 2023-04-26 | Thermocouple with high temperature protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320974996.0U CN219956730U (en) | 2023-04-26 | 2023-04-26 | Thermocouple with high temperature protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219956730U true CN219956730U (en) | 2023-11-03 |
Family
ID=88555768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320974996.0U Active CN219956730U (en) | 2023-04-26 | 2023-04-26 | Thermocouple with high temperature protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219956730U (en) |
-
2023
- 2023-04-26 CN CN202320974996.0U patent/CN219956730U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |