CN217819076U - High temperature resistant K shape thermocouple convenient to use - Google Patents
High temperature resistant K shape thermocouple convenient to use Download PDFInfo
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- CN217819076U CN217819076U CN202221120124.XU CN202221120124U CN217819076U CN 217819076 U CN217819076 U CN 217819076U CN 202221120124 U CN202221120124 U CN 202221120124U CN 217819076 U CN217819076 U CN 217819076U
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- protective housing
- high temperature
- terminal box
- temperature resistant
- insulating layer
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Abstract
The utility model provides a high temperature resistant K shape thermocouple convenient to use, the junction box comprises a junction box body, the end cover is installed at the top of terminal box, one side fixed mounting of terminal box has lead-out wire bushing, the top fixedly connected with of end cover prevents losing the chain, the one end fixed connection that prevents losing the chain is on lead-out wire bushing's surface, the bottom of terminal box is equipped with first protective housing, the bottom fixedly connected with second protective housing of first protective housing, the inside of first protective housing and second protective housing is equipped with temperature sensing element, temperature sensing element's surface cover is equipped with heat-resisting mechanism, through the heat-resisting mechanism that is equipped with, the ceramic insulating layer that first protective housing and second protective housing inner wall were equipped with makes isolated outside heat to play the influence of hot electrode, and the outer wall spraying of first protective housing and second protective housing has thermal-insulated coating, double-insulated effect has, make can last work and not influenced under high temperature environment, the hole site that is used for detecting temperature is offered at ceramic insulating layer middle part, guarantee that the hot electrode can normally work.
Description
Technical Field
The utility model relates to a thermocouple technical field specifically is a high temperature resistant K shape thermocouple convenient to use.
Background
The K-type thermocouple is a sensor for measuring the temperature of an industrial field, and is usually matched with a display instrument, a recording instrument, a PLC and a DCS for use. The K-type thermocouple has the advantages of good linearity, larger thermoelectromotive force, high sensitivity, better stability and uniformity, strong oxidation resistance, low price and the like, and can be widely used by users in an oxidizing inert atmosphere. The existing K-type thermocouple is poor in high-temperature resistance, damage caused by the fact that the temperature of the thermocouple is too high can be caused by continuous work under the high-temperature environment state, and therefore temperature measurement is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature resistant K shape thermocouple convenient to use to it is relatively poor to solve the current high temperature resistant ability of K type thermocouple that above-mentioned background art provided, and continuous operation can lead to the thermocouple high temperature to cause the damage under high temperature environment state, thereby influences the measuring problem of temperature.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high temperature resistant K shape thermocouple convenient to use, includes the terminal box, the end cover is installed at the top of terminal box, one side fixed mounting of terminal box has lead-out wire bushing, the top fixedly connected with of end cover prevents losing the chain, the one end fixed connection that prevents losing the chain is on lead-out wire bushing's surface, the bottom of terminal box is equipped with first protective housing, the bottom fixedly connected with second protective housing of first protective housing, the inside of first protective housing and second protective housing is equipped with temperature-sensing element, temperature-sensing element's surface cover is equipped with heat-resisting mechanism.
As a preferred embodiment of the present invention: the temperature sensing element comprises a hot electrode which is inserted and connected in the first protective shell and the second protective shell.
As a preferred scheme of the utility model: the heat-resisting mechanism comprises ceramic heat-insulating layers arranged on the inner walls of the first protective shell and the second protective shell, hole positions for detection are formed in the middle of the ceramic heat-insulating layers corresponding to the hot electrodes, heat-insulating paint is sprayed on the outer walls of the first protective shell and the second protective shell, and the ceramic heat-insulating layers are arranged outside the hot electrodes in a sleeved mode.
For being as a preferred scheme of the utility model: and a shielding sleeve is also arranged between the ceramic heat-insulating layer and the thermode and sleeved on the surface of the thermode.
As a preferred embodiment of the present invention: one end of the outgoing line wiring sleeve is fixedly connected with a temperature display meter.
As a preferred embodiment of the present invention: the surface middle part fixed mounting of first protective housing has mounting flange, the mounting hole has been seted up on the mounting flange surface.
As a preferred embodiment of the present invention: the terminal box is in threaded connection with the end cover, and a sealing structure is further arranged at the joint of the top of the terminal box and the end cover and is a sealing ring.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) Through the arranged heat-resisting mechanism, the ceramic heat-insulating layers arranged on the inner walls of the first protective shell and the second protective shell can isolate the influence of external heat on the hot electrode, and the heat-insulating coatings sprayed on the outer walls of the first protective shell and the second protective shell have double-layer heat-insulating effects, so that the hot electrode can continuously work in a high-temperature environment and is not influenced;
(2) The shield sleeve that thermode surface cover was established can effectual isolated outside electromagnetic signal to the influence of thermode for guarantee normal work, the temperature of detection shows through the temperature display table, is convenient for observe operating temperature.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic view of the split structure of the present invention;
fig. 3 is a schematic view of the sectional structure of the protective casing of the present invention.
In the figure: 1. a junction box; 2. an end cap; 3. a lead-out wire connection sleeve; 4. an anti-lost chain; 5. a first protective case; 6. a second protective shell; 7. a temperature sensing element; 71. a thermode; 8. a heat-resistant mechanism; 81. a ceramic thermal insulation layer; 9. a shielding sleeve; 10. a temperature display meter; 11. installing a flange; 12. mounting holes; 13. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high temperature resistant K thermocouple that appears convenient to use, including terminal box 1, end cover 2 is installed at the top of terminal box 1, one side fixed mounting of terminal box 1 has lead-out wire bushing 3, the top fixedly connected with of end cover 2 prevents losing chain 4, the one end fixed connection that prevents losing chain 4 is on lead-out wire bushing 3's surface, the bottom of terminal box 1 is equipped with first protective housing 5, the bottom fixedly connected with second protective housing 6 of first protective housing 5, the inside of first protective housing 5 and second protective housing 6 is equipped with temperature-sensing element 7, the surface cover of temperature-sensing element 7 is equipped with heat-resisting mechanism 8.
In this embodiment: the temperature sensing element 7 includes a hot electrode 71 inserted and connected inside the first protective case 5 and the second protective case 6.
When in specific use: the thermodes 71 installed inside the first and second protective cases 5 and 6 perform temperature receiving conduction so that the temperature is detected.
In this embodiment: the heat-resisting mechanism 8 comprises a ceramic heat-insulating layer 81 arranged on the inner walls of the first protective shell 5 and the second protective shell 6, hole sites for detection are arranged in the middle of the ceramic heat-insulating layer 81 corresponding to the hot electrode 71, heat-insulating paint is sprayed on the outer walls of the first protective shell 5 and the second protective shell 6, and the ceramic heat-insulating layer 81 is sleeved outside the hot electrode 71.
When in specific use: ceramic insulating layer 81 that first protective housing 5 and 6 inner walls of second protective housing were equipped with makes to play isolated outside heat to the influence of thermode 71, and the outer wall spraying of first protective housing 5 and second protective housing 6 has thermal barrier coating, has double-deck thermal-insulated effect, makes can last work and not influenced under high temperature environment, and the hole site that is used for detecting the temperature is seted up at ceramic insulating layer 81 middle part, guarantees that thermode 71 can normally work.
In this embodiment: a shielding sleeve 9 is further arranged between the ceramic heat insulation layer 81 and the thermode 71, the shielding sleeve 9 is sleeved on the surface of the thermode 71, and one end of the outgoing line wiring sleeve 3 is fixedly connected with a temperature display meter 10.
When in specific use: the shielding cover 9 that thermode 71 surface cover was established can effectual isolated outside electromagnetic signal to thermode 71's influence for guarantee normal work, the temperature that detects shows through temperature display table 10, is convenient for observe operating temperature.
In this embodiment: the middle part of the surface of the first protective shell 5 is fixedly provided with a mounting flange 11, and the surface of the mounting flange 11 is provided with a mounting hole 12.
When in specific use: an installation flange 11 is installed in the middle of the first protection shell 5, and an installation hole 12 is formed in the surface of the sleeve to facilitate installation and fixation.
In this embodiment: the junction box 1 is in threaded connection with the end cover 2, and a sealing structure is further arranged at the joint of the top of the junction box 1 and the end cover 2 and is a sealing ring 13.
When in specific use: the junction box 1 and the end cover 2 are in threaded connection, and a sealing ring 13 is arranged at the joint, so that the sealing performance of the junction box 1 can be ensured.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a high temperature resistant K shape thermocouple convenient to use, includes terminal box (1), its characterized in that: end cover (2) are installed at the top of terminal box (1), one side fixed mounting of terminal box (1) has lead-out wire bushing (3), the top fixedly connected with of end cover (2) prevents losing chain (4), the one end fixed connection of preventing losing chain (4) is on the surface of lead-out wire bushing (3), the bottom of terminal box (1) is equipped with first protective housing (5), the bottom fixedly connected with second protective housing (6) of first protective housing (5), the inside of first protective housing (5) and second protective housing (6) is equipped with temperature sensing element (7), the surface cover of temperature sensing element (7) is equipped with heat-resisting mechanism (8).
2. A high temperature resistant K-shaped thermocouple, ready for use, according to claim 1, characterized by: the temperature sensing element (7) comprises a hot electrode (71) which is inserted and connected in the first protective shell (5) and the second protective shell (6).
3. A high temperature resistant K-shaped thermocouple, ready for use, according to claim 1, characterized by: heat-resisting mechanism (8) are including setting up ceramic insulating layer (81) at first protective housing (5) and second protective housing (6) inner wall, ceramic insulating layer (81) middle part corresponds thermode (71) and offers the hole site that is used for the detection, and the outer wall spraying of first protective housing (5) and second protective housing (6) has thermal-insulated coating, the outside at thermode (71) is established in ceramic insulating layer (81) cover.
4. A high temperature resistant K-shaped thermocouple, ready for use, according to claim 3, characterized by: still be equipped with shielding sleeve (9) between ceramic insulating layer (81) and thermode (71), shielding sleeve (9) cover is established on thermode (71) surface.
5. A high temperature resistant K-shaped thermocouple, ready for use, according to claim 1, characterized by: one end of the outgoing line wiring sleeve (3) is fixedly connected with a temperature display meter (10).
6. A high temperature resistant K-shaped thermocouple, ready for use, according to claim 1, characterized by: the surface middle part fixed mounting of first protecting sheathing (5) has mounting flange (11), mounting hole (12) have been seted up on mounting flange (11) surface.
7. A high temperature resistant K-shaped thermocouple, ready for use, according to claim 5, characterized by: the terminal box is characterized in that the terminal box (1) is in threaded connection with the end cover (2), a sealing structure is further arranged at the joint of the top of the terminal box (1) and the end cover (2), and the sealing structure is a sealing ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120124.XU CN217819076U (en) | 2022-05-10 | 2022-05-10 | High temperature resistant K shape thermocouple convenient to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120124.XU CN217819076U (en) | 2022-05-10 | 2022-05-10 | High temperature resistant K shape thermocouple convenient to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217819076U true CN217819076U (en) | 2022-11-15 |
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ID=83983891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221120124.XU Active CN217819076U (en) | 2022-05-10 | 2022-05-10 | High temperature resistant K shape thermocouple convenient to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217819076U (en) |
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2022
- 2022-05-10 CN CN202221120124.XU patent/CN217819076U/en active Active
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