CN212779623U - Novel thermocouple installation seal assembly - Google Patents
Novel thermocouple installation seal assembly Download PDFInfo
- Publication number
- CN212779623U CN212779623U CN202020753957.4U CN202020753957U CN212779623U CN 212779623 U CN212779623 U CN 212779623U CN 202020753957 U CN202020753957 U CN 202020753957U CN 212779623 U CN212779623 U CN 212779623U
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- thermocouple
- seal cover
- seal
- sealing
- installation
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Abstract
The utility model relates to a novel thermocouple installation seal assembly, the structure includes the tight cap of last spin, seal cover, sealed asbestos cord, thermocouple, the thermocouple runs through tight cap of last spin and seal cover in proper order, the tight cap of last spin passes through screw thread and seal cover fixed connection, sealed asbestos cord winding is inside the middle part outer wall of thermocouple and being located the seal cover, the utility model discloses a combined structure from top to bottom, the screw thread is screwed and is connected, utilizes sealed asbestos cord to fix and seal the thermocouple to the plug-in length of thermocouple is adjustable, and sealed asbestos cord is removable, simple structure, and it is convenient to use.
Description
Technical Field
The utility model belongs to the technical field of the instrument and meter installation, especially, novel thermocouple installation seal assembly.
Background
The thermocouple is a commonly used temperature measuring element, the outside of the thermocouple is usually wrapped and protected by a heat conducting sleeve, the thermocouple is widely applied in industrial production, various installation modes are provided according to temperature measuring equipment and field requirements, different requirements such as sealing, heat resistance, pressure resistance, quick response and the like are met while accurate temperature measurement is realized, the thermocouple and tested equipment are installed in a fixed thread mode in a common mode, the installation mode is shown as figure 2, the fixed thread type installation structure is a bolt with a hexagon nut, the thermocouple sleeve penetrates through the bolt and is welded together, the bolt and the thermocouple are fixedly connected with an installation support table welded on the equipment through threads during installation, the bolt and the thermocouple are compressed and sealed through a sealing gasket under the hexagon nut, the front end of the thermocouple is inserted into the equipment to measure the temperature, and the temperature measurement in a sealing state is realized, and the fixed thread installation mode is characterized by good sealing, the thermocouple can bear higher internal pressure of equipment, but because the thermocouple is tightly connected with the mounting saddle and the hexagonal nut, the heat conduction is faster, so that the temperature of the threaded connection part and the rear part of the thermocouple is higher, and the thermocouple is not suitable for measuring high temperature; the connecting thread is easy to rust after being used for a long time, so that the replacement and the disassembly are difficult; since the installation screw thread is fixedly welded to the thermowell, the insertion length thereof is fixed, the insertion length cannot be changed, and this installation manner is only applicable to the metal sheathed thermocouple.
Therefore, the novel thermocouple installation sealing assembly is required to be invented, the structure is simple, the sealing temperature measurement under the conditions of high temperature, normal pressure or low pressure can be realized, the insertion length of the thermocouple can be randomly adjusted, and welding and fixing are not required, so that the novel thermocouple installation sealing assembly is also suitable for the thermocouple of the ceramic protection tube.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel thermocouple installation seal assembly to solve the defects existing in the prior art.
In order to achieve the above purpose, the following technical scheme is provided:
the utility model provides a novel thermocouple installation seal assembly, the structure includes top screwing cap, seal cover, sealed asbestos cord, thermocouple, the thermocouple runs through top screwing cap and seal cover in proper order, the upper portion of top screwing cap is outer hexagonal shape, and its lower part is located the seal cover and passes through screw thread and seal cover fixed connection, the upper portion of seal cover is outer hexagonal shape, and its lower part is equipped with the external screw thread, sealed asbestos cord winding is inside the middle part outer wall of thermocouple and is located the seal cover.
Preferably, a cavity is formed between the outer wall of the thermocouple and the bottom surface of the upper screwing cap and the inner wall of the sealing sleeve, and the sealing asbestos rope is located in the cavity.
The utility model has the advantages that:
1. the utility model discloses an it is sealed that pack the asbestos rope in the seal cover, compact structure, small in size, the asbestos rope all is suitable for under high microthermal state, can realize that high temperature, ordinary pressure or low pressure condition seal the temperature measurement down.
2. The utility model discloses a thermocouple insertion length can adjust at will, and the commonality is strong.
3. The utility model discloses do not need welded fastening when installing and using, consequently both can be applicable to the thermocouple that has metal protection tube and also be applicable to ceramic protection tube, dismantle simple to operate moreover, each part loss is all changeable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a fixed thread type installation in the prior art;
FIG. 3 is a schematic view of the present invention in use;
the reference symbols shown in the figures are: 1-upper screwing cap, 2-sealing sleeve, 3-sealing asbestos rope, 4-thermocouple, 5-external thread, 6-cavity, 7-bolt, 8-mounting saddle, 9-sealing gasket and 10-measured temperature measuring equipment.
Detailed Description
The following describes the present design in detail with reference to the accompanying drawings.
As shown in fig. 1 and 3, a novel thermocouple installation sealing assembly, the structure includes top screwing cap 1, seal cover 2, sealed asbestos cord 3, thermocouple 4, wherein thermocouple 4 runs through top screwing cap 1 and seal cover 2 in proper order, the upper portion of top screwing cap 1 is outer hexagon shape, its lower part is located seal cover 2 and passes through screw thread and seal cover 2 fixed connection, the upper portion of seal cover 2 is outer hexagon shape, its lower part is equipped with external screw thread 5, sealed asbestos cord 3 twines at the middle part outer wall of thermocouple 4 and is located inside seal cover 2.
Wherein, a cavity 6 is formed between the outer wall of the thermocouple 4 and the bottom surface of the upper screwing cap 1 and the inner wall of the sealing sleeve 2, and the sealing asbestos rope 3 is positioned in the cavity 6.
Wherein, seal cover 2 is screwed into the installation saddle 8 of the equipment 10 to be measured by external screw thread 5 and then realizes the fixed connection of the whole thermocouple installation seal assembly.
Examples
As shown in figure 3, when in use, the upper screwing cap 1 is firstly sleeved into the thermocouple 4, then the sealing asbestos rope 3 with a certain length is wound at the corresponding position of the thermocouple 4, then the sealing sleeve 2 is sleeved into the thermocouple 4, the extending length of the thermocouple 4 is adjusted, the sealing asbestos rope 3 enters the sealing sleeve 2, the outer six corners of the upper screwing cap 1 are screwed by a spanner, the upper screwing cap 1 is screwed downwards to extrude the sealing asbestos rope 3, the relative positions of the compressed sealing asbestos rope 3 and the thermocouple 4 are fixed under the action of the extrusion force, the insertion length of the thermocouple 4 is determined, the whole thermocouple mounting and sealing assembly is tightly matched and cannot move relatively, the assembly is completed, finally, the external thread 5 at the lower part of the sealing sleeve 2 is screwed into the mounting saddle 8 of the temperature measuring equipment 10, if the insertion length is not suitable, the spanner is used to unscrew the screwing cap 1, the extrusion force of the sealing asbestos rope 3 is reduced, thermocouple 4 is not hard up, can adjust length, and sealed asbestos rope 3 reaches the certain time, and when sealed effect is not good or ageing, use spanner to unscrew fastening cap 1 equally, twine the sealed asbestos rope 3 of certain length at thermocouple 4's relevant position again and fix can.
Claims (2)
1. The utility model provides a novel thermocouple installation seal assembly, its characterized in that, the structure includes top screwing cap, seal cover, sealed asbestos rope, thermocouple, the thermocouple runs through top screwing cap and seal cover in proper order, the upper portion of top screwing cap is outer hexagonal shape, and its lower part is located the seal cover and through screw thread and seal cover fixed connection, the upper portion of seal cover is outer hexagonal shape, and its lower part is equipped with the external screw thread, sealed asbestos rope winding is inside the middle part outer wall of thermocouple and is located the seal cover.
2. A novel thermocouple installation seal assembly as claimed in claim 1 wherein a cavity is defined between the outer wall of the thermocouple and the bottom surface of the upper tightening cap and the inner wall of the sealing sleeve, the sealing asbestos cord being located in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020753957.4U CN212779623U (en) | 2020-05-09 | 2020-05-09 | Novel thermocouple installation seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020753957.4U CN212779623U (en) | 2020-05-09 | 2020-05-09 | Novel thermocouple installation seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212779623U true CN212779623U (en) | 2021-03-23 |
Family
ID=75066789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020753957.4U Active CN212779623U (en) | 2020-05-09 | 2020-05-09 | Novel thermocouple installation seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212779623U (en) |
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2020
- 2020-05-09 CN CN202020753957.4U patent/CN212779623U/en active Active
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