CN220270630U - Thermocouple sealing connection structure for high-pressure atmosphere furnace - Google Patents
Thermocouple sealing connection structure for high-pressure atmosphere furnace Download PDFInfo
- Publication number
- CN220270630U CN220270630U CN202322002823.5U CN202322002823U CN220270630U CN 220270630 U CN220270630 U CN 220270630U CN 202322002823 U CN202322002823 U CN 202322002823U CN 220270630 U CN220270630 U CN 220270630U
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- thermocouple
- tungsten
- flange
- furnace body
- rhenium
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- 238000007789 sealing Methods 0.000 title claims abstract description 23
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a thermocouple sealing connection structure for a high-pressure atmosphere furnace, which relates to the technical field of thermocouple sealing connection structures and comprises a furnace body and a temperature measuring port arranged on the furnace body, wherein a tungsten-rhenium thermocouple is inserted into the temperature measuring port and connected with a binding post, a thermocouple flange is arranged on the furnace body and positioned at the temperature measuring port, and the thermocouple flange and the furnace body are connected through a first bolt; one end of the thermocouple flange is provided with a connecting cavity for inserting a tungsten-rhenium thermocouple, the binding post penetrates through the connecting cavity to be connected with the tungsten-rhenium thermocouple, and the binding post is connected with the thermocouple flange through a second bolt. This application has the terminal that makes the autogenous pressure formula can be under the higher pressure environment of stove under the pressure more tightly, can not appear leaking gas the condition, improves thermocouple seal connection structure's intensity and stability's effect.
Description
Technical Field
The utility model relates to the technical field of thermocouple sealing connection structures, in particular to a thermocouple sealing connection structure for a high-pressure atmosphere furnace.
Background
At present, the high-pressure atmosphere furnace is widely applied to heat treatment of materials such as hard alloy, ceramic, powder metallurgy and the like in vacuum state, reducing atmosphere and protective atmosphere. The temperature measuring system is an important component of the electric furnace, the thermocouple is used as a temperature measuring sensor, and the thermocouple is an important temperature measuring and controlling component of the high-pressure atmosphere furnace. The thermocouple structure in the high-pressure atmosphere furnace is required to be sealed, and also needs to be capable of withstanding the high-pressure environment of the furnace, and the thermocouple structure in the related art is directly exposed in the high-pressure atmosphere furnace, so that the condition of pressure explosion or extrusion outside the furnace is easy to occur, and the structural stability is poor, so that the thermocouple structure needs to be improved.
Disclosure of Invention
In order to enable the self-pressing binding post to be pressed more tightly in a high-pressure environment in the furnace, no air leakage occurs, and the strength and stability of the thermocouple sealing connection structure are improved, the application provides the thermocouple sealing connection structure for the high-pressure atmosphere furnace.
The application provides a thermocouple sealing connection structure for high-pressure atmosphere furnace adopts following technical scheme:
the thermocouple sealing connection structure for the high-pressure atmosphere furnace comprises a furnace body and a temperature measuring port formed in the furnace body, wherein a tungsten-rhenium thermocouple is inserted into the temperature measuring port and connected with a binding post, a thermocouple flange is arranged on the furnace body and positioned at the temperature measuring port, and the thermocouple flange and the furnace body are connected with each other through a first bolt; one end of the thermocouple flange is provided with a connecting cavity for inserting a tungsten-rhenium thermocouple, the binding post penetrates through the connecting cavity to be connected with the tungsten-rhenium thermocouple, and the binding post is connected with the thermocouple flange through a second bolt.
Preferably, a positioning ring is arranged between the tungsten-rhenium thermocouple and the inner wall of the temperature measuring port, and a sealing ring is arranged between the thermocouple flange and the furnace body.
Preferably, a heat insulation felt is further arranged in the temperature measuring port, and the tungsten-rhenium thermocouple penetrates through the heat insulation felt.
In summary, the present application includes at least one of the following beneficial technical effects:
the connecting column is wrapped by the thermocouple flange, the junction of the tungsten-rhenium thermocouple and the connecting column is wrapped in the connecting cavity, the thermocouple can safely and stably work in the furnace under the condition of positive pressure or negative pressure in the furnace, the self-pressing binding post can be pressed more tightly in the high-pressure environment in the furnace, the air leakage condition can not occur, and the strength and the stability of the thermocouple sealing connecting structure are improved.
Drawings
Fig. 1 is a schematic cross-sectional view of a thermocouple sealing connection structure for a high-pressure atmosphere furnace according to an embodiment of the present application.
Reference numerals illustrate: 1. a furnace body; 2. a temperature measuring port; 21. tungsten rhenium thermocouples; 3. binding posts; 4. a thermocouple flange; 41. a connecting cavity; 5. a positioning ring; 6. a seal ring; 7. a thermal insulation felt; 81. a first bolt; 82. and a second bolt.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1.
The embodiment of the application discloses a thermocouple sealing connection structure for a high-pressure atmosphere furnace. Referring to fig. 1, the furnace comprises a furnace body 1 and a temperature measuring port 2 arranged on the furnace body 1, wherein a tungsten-rhenium thermocouple 21 is inserted into the temperature measuring port 2, and the furnace inner end of the thermocouple is sleeved into an insulating porcelain tube. The temperature measuring port 2 is also filled with a heat insulation felt 7, the tungsten-rhenium thermocouple 21 penetrates through the heat insulation felt 7, and the heat insulation felt 7 can play a role in heat insulation. The thermocouple flange 4 is arranged on the furnace body 1 and positioned at the temperature measuring port 2, the thermocouple flange 4 is fixedly connected with the furnace body 1 through a first bolt 81, and a plurality of first bolts 81 are arranged. One end of the thermocouple flange 4 is provided with a connecting cavity 41 for inserting the tungsten-rhenium thermocouple 21, and one end of the tungsten-rhenium thermocouple 21 stretches into the connecting cavity 41. The thermocouple flange 4 is fixedly provided with the binding post 3 through the second bolt 82, and as the second bolt 82 is arranged on the surface of the thermocouple flange 4, the second bolt 82 can improve the stability and the tightness of the binding post 3 on the thermocouple flange 4, and the binding post 3 penetrates through the connecting cavity 41 to be connected with the tungsten-rhenium thermocouple 21. The connecting column is wrapped in the thermocouple flange 4, and the joint of the tungsten-rhenium thermocouple 21 and the connecting column is wrapped in the connecting cavity 41, so that the situation that the pressure is higher and the pressure is tighter under the condition of high pressure in the furnace is ensured, the occurrence of air leakage and the situation that the tungsten-rhenium thermocouple 21 is extruded is effectively reduced, and the strength and the stability of the thermocouple sealing connecting structure are improved.
In order to improve the sealing performance during connection, referring to fig. 1, a positioning ring 5 is arranged between a tungsten-rhenium thermocouple 21 and the inner wall of the temperature measuring port 2, and a sealing ring 6 is arranged between a thermocouple flange 4 and the furnace body 1.
The implementation principle of the thermocouple sealing connection structure for the high-pressure atmosphere furnace provided by the embodiment of the application is as follows: the junction of the tungsten-rhenium thermocouple 21 and the connecting column is wrapped in the connecting cavity 41 by the thermocouple flange 4, so that the situation that the pressure is higher and the pressure is tighter under the condition of high pressure in the furnace is ensured, the occurrence of air leakage and the situation that the tungsten-rhenium thermocouple 21 is extruded is effectively reduced, and the strength and the stability of the thermocouple sealing connecting structure are improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (3)
1. The utility model provides a thermocouple sealing connection structure for high pressure atmosphere stove, includes furnace body (1) and sets up temperature measurement mouth (2) on furnace body (1), temperature measurement mouth (2) interpolation is equipped with tungsten rhenium thermocouple (21), terminal (3), its characterized in that are connected to tungsten rhenium thermocouple (21): a thermocouple flange (4) is arranged on the furnace body (1) and positioned at the temperature measuring port (2), and the thermocouple flange (4) is connected with the furnace body (1) through a first bolt (81); one end of the thermocouple flange (4) is provided with a connecting cavity (41) for inserting the tungsten-rhenium thermocouple (21), the binding post (3) penetrates through the connecting cavity (41) and is connected with the tungsten-rhenium thermocouple (21) mutually, and the binding post (3) is connected with the thermocouple flange (4) mutually through a second bolt (82).
2. The thermocouple sealing and connecting structure for high-pressure atmosphere furnaces according to claim 1, wherein: a positioning ring (5) is arranged between the tungsten-rhenium thermocouple (21) and the inner wall of the temperature measuring port (2), and a sealing ring (6) is arranged between the thermocouple flange (4) and the furnace body (1).
3. The thermocouple sealing and connecting structure for high-pressure atmosphere furnaces according to claim 1, wherein: and a heat insulation felt (7) is further arranged in the temperature measuring port (2), and the tungsten-rhenium thermocouple (21) penetrates through the heat insulation felt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322002823.5U CN220270630U (en) | 2023-07-27 | 2023-07-27 | Thermocouple sealing connection structure for high-pressure atmosphere furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322002823.5U CN220270630U (en) | 2023-07-27 | 2023-07-27 | Thermocouple sealing connection structure for high-pressure atmosphere furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220270630U true CN220270630U (en) | 2023-12-29 |
Family
ID=89301125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322002823.5U Active CN220270630U (en) | 2023-07-27 | 2023-07-27 | Thermocouple sealing connection structure for high-pressure atmosphere furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220270630U (en) |
-
2023
- 2023-07-27 CN CN202322002823.5U patent/CN220270630U/en active Active
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