CN217845430U

CN217845430U - Thermocouple fixing and sealing device

Info

Publication number: CN217845430U
Application number: CN202222268777.9U
Authority: CN
Inventors: 李翔; 王翔
Original assignee: Shaoxing Xianyue Material Technology Co ltd
Current assignee: Shaoxing Xianyue Material Technology Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-18
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses a thermocouple fixed seal device, its characterized in that: the thermocouple includes plug and the thermocouple wire of connection on the plug, and the cover is equipped with tubular metal resonator and ceramic tube on the thermocouple wire, is provided with clamp bolt on the tubular metal resonator, and the cover is equipped with first clamping ring, first sealing washer, second clamping ring, second sealing washer and seal cover on the tubular metal resonator, and the seal cover can threaded connection on clamp bolt, and first clamping ring, first sealing washer, second clamping ring, second sealing washer set gradually in the seal cover. The utility model discloses easy dismounting, sealing performance is good.

Description

Thermocouple fixing and sealing device

Technical Field

The utility model relates to an instrument and meter technical field, concretely relates to sealing device is fixed to thermocouple.

Background

The thermocouple wire protective sleeve of the high-temperature thermocouple generally comprises a ceramic tube and a metal tube, the ceramic tube can protect the thermocouple wire in a high-temperature environment to prevent the thermocouple wire from being polluted, and the metal tube protects the thermocouple from being damaged during installation and sealing. The thermocouple fixed seal device who has now commonly used is mostly cutting ferrule and connects, and cutting ferrule connects inside sealing member to have metal material and non-metal material. However, in the using process, the problems that the existing thermocouple ferrule joint technology is prone to vacuum sealing, a thermocouple metal tube is prone to deformation, a ferrule joint sealing element cannot be disassembled and assembled for use for many times and the like exist.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough, provide a thermocouple fixed sealing device.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a thermocouple fixed seal device, includes plug and the thermocouple wire of connection on the plug, the cover is equipped with tubular metal resonator and ceramic tube on the thermocouple wire, be provided with clamp bolt on the tubular metal resonator, the cover is equipped with first clamping ring, first sealing washer, the second clamping ring, second sealing washer and seal cover on the tubular metal resonator, the seal cover can threaded connection on clamp bolt, first clamping ring, first sealing washer, the second clamping ring, the second sealing washer sets gradually in the seal cover, still including being used for fixing the fixed establishment on flange with the thermocouple.

Preferably, the compression bolt comprises a threaded column and a support block connected to the right side of the threaded column, external threads are arranged on the periphery of the threaded column, a threaded hole, a mounting hole and a through hole which are communicated with each other are formed in the sealing sleeve, the through hole is used for a metal pipe to penetrate through, internal threads are arranged in the threaded hole, the mounting hole is in threaded connection with the threaded column, and the support block, the first pressing ring, the first sealing ring, the second pressing ring and the second sealing ring are located in the mounting hole.

Preferably, the first seal ring and the second seal ring are both V-shaped seal rings.

Preferably, the second pressing ring is provided with a plurality of exhaust holes.

Preferably, the fixing mechanism comprises a first mounting pipe arranged on the upper portion of the connecting flange, a connecting pipe is arranged above the first mounting pipe, the sealing sleeve is connected with the connecting pipe through a first clamp, and the connecting pipe is connected with the first mounting pipe through a second clamp.

Preferably, the lower portion of the sealing sleeve is connected with a first flange plate, the upper portion of the connecting pipe is connected with a second flange plate, a first mounting ring is sleeved on the metal pipe, a first sealing ring is arranged on the periphery of the first mounting ring and located between the first flange plate and the second flange plate, the first flange plate and the second flange plate are located on the outer side of the first flange plate and the outer side of the second flange plate in a sleeved mode, a third flange plate is connected to the lower portion of the connecting pipe, a fourth flange plate is connected to the upper portion of the first mounting pipe, a second mounting ring is sleeved on the metal pipe, a second sealing ring is arranged on the periphery of the second mounting ring and located between the third flange plate and the fourth flange plate, and the third flange plate and the fourth flange plate are located on the outer side of the second clamp.

Preferably, the fixing mechanism comprises a mounting seat arranged on the upper portion of the connecting flange, a second mounting pipe is inserted into the mounting seat, the lower end of the metal pipe penetrates through the second mounting pipe, a conical sealing ring is arranged on the inner side of the upper portion of the mounting seat and located between the mounting seat and the second mounting pipe, a first locking ring is in threaded connection with the periphery of the mounting seat, a second pressing plate is connected to the upper end of the first locking ring, the lower end of the second pressing plate abuts against the upper end of the mounting seat, a conical sealing ring is connected to the upper end of the second mounting pipe, a second locking ring is in threaded connection with the lower portion of the periphery of the sealing sleeve, a first pressing plate is connected to the lower portion of the second locking ring, a third mounting ring is sleeved on the metal pipe, a third sealing ring is arranged on the periphery of the third mounting ring and located between the sealing sleeve and the conical sealing ring, and the upper end of the first pressing plate abuts against the lower end of the conical sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that: the sealing sleeve is in threaded connection with the compression bolt, and the compression bolt and the sealing sleeve are interacted to compress the first compression ring, the first sealing ring, the second compression ring and the second sealing ring inside, so that a good sealing effect is achieved; the disassembly and the assembly are convenient; different fixing modes are designed according to different working conditions so as to meet corresponding use requirements.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the assembly of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is a schematic structural view of a fixing mechanism of the present invention;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

FIG. 6 is an enlarged schematic view at B of FIG. 4;

fig. 7 is a schematic structural view of another fixing mechanism of the present invention;

FIG. 8 is an enlarged schematic view at A of FIG. 7;

fig. 9 is an enlarged schematic view at B in fig. 7.

Reference numerals: 1. a plug; 2. a metal tube; 3. a ceramic tube; 4. a compression bolt; 5. a first pressure ring; 6. a first seal ring; 7. a second pressure ring; 8. a second seal ring; 9. a sealing sleeve; 10. a threaded post; 11. a resisting block; 12. an exhaust hole; 13. a through hole; 14. mounting holes; 15. a threaded hole; 16. a connecting flange; 17. a first flange plate; 18. a first mounting ring; 19. a first seal ring; 20. a connecting pipe; 21. a second flange plate; 22. a first clamp; 23. a third flange plate; 24. a second mounting ring; 25. a second seal ring; 26. a first mounting tube; 27. a fourth flange plate; 28. a second clamp; 29. a mounting seat; 30. a second mounting tube; 31. a first locking ring; 32. a second locking ring; 33. a first platen; 34. a second platen; 35. a conical seal ring; 36. a third mounting ring; 37. and a third seal ring.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to fig. 1-9.

The utility model provides a thermocouple fixed seal device, wherein the thermocouple includes plug 1 and the thermocouple wire of connection on plug 1, the cover is equipped with tubular metal resonator 2 and ceramic tube 3 on the thermocouple wire, fixed mounting clamp bolt 4 on the tubular metal resonator 2, the cover is equipped with first clamping ring 5 from a left side to the right side in proper order on the tubular metal resonator 2, first sealing washer 6, second clamping ring 7, second sealing washer 8 and seal cover 9, first sealing washer 6 and second sealing washer 8 are V type sealing washer, seal cover 9 can threaded connection make first clamping ring 5 on clamp bolt 4, first sealing washer 6, second clamping ring 7, second sealing washer 8 is located seal cover 9, clamp bolt 4 and seal cover 9 combined action are with first clamping ring 5, first sealing washer 6, second clamping ring 7 and second sealing washer 8 compress tightly and realize sealing.

Preferably, the compression bolt 4 comprises a threaded column 10 and a support block 11 connected to the right side of the threaded column 10, an external thread is arranged on the periphery of the threaded column 10, a threaded hole 15, a mounting hole 14 and a through hole 13 which are communicated with each other are formed in the sealing sleeve 9, the through hole 13 is used for the metal pipe 2 to pass through, an internal thread is arranged in the threaded hole 15, the mounting hole 14 is in threaded connection with the threaded column 10, and the support block 11, the first pressing ring 5, the first sealing ring 6, the second pressing ring 7 and the second sealing ring 8 are located in the mounting hole 14. The diameter of the through hole 13 is smaller than that of the mounting hole 14, and is set just enough for the metal pipe 2 to pass through. The abutting block 11 can extend into the mounting hole 14 so as to be matched with the right wall of the mounting hole 14 to extrude the first press ring 5, the first seal ring 6, the second press ring 7 and the second seal ring 8 which are positioned in the mounting hole 14.

Preferably, the second press ring 7 is provided with two exhaust holes 12 on the vertical end surface to facilitate the exhaust of gas during the mounting and pressing operation.

A thermocouple is fixed in a way that a first mounting pipe 26 is fixed at the upper part of a connecting flange 16, a fourth flange 27 is connected at the upper end of the first mounting pipe 26, a first flange 17 is arranged at the lower part of a sealing sleeve 9,

a connecting pipe 20 is arranged between the sealing sleeve 9 and the first mounting pipe 26, the upper end and the lower end of the connecting pipe 20 are respectively connected with a second flange plate 21 and a third flange plate 23, the metal pipe 2 is sleeved with a first mounting ring 18 and a second mounting ring 24, the peripheries of the first mounting ring 18 and the second mounting ring 24 are respectively provided with a first sealing ring 19 and a second sealing ring 25, the first sealing ring 19 is positioned between the first flange plate 17 and the second flange plate 21, and the second sealing ring 25 is positioned between the third flange plate 23 and the fourth flange plate 27. A first clamp 22 is installed at the joint of the sealing sleeve 9 and the connecting pipe 20, the second flange 21 and the first flange 17 are clamped by the first clamp 22, and the second flange 21 and the first flange 17 compress the first sealing ring 19, so as to realize the sealing between the sealing sleeve 9 and the connecting pipe 20. A second clamp 28 is installed at the joint of the connecting pipe 20 and the first installation pipe 26, the third flange 23 and the fourth flange 27 are clamped by the second clamp 28, and the second sealing ring 25 is pressed by the third flange 23 and the fourth flange 27 to seal the connecting pipe 20 and the first installation pipe 26. Wherein, the first clamp 22 and the second clamp 28 are both quick-release clamps, which are convenient for disassembly and assembly. The clamping connection mode is not high in strength, and the thermocouple sealing device is suitable for sealing and fixing a thermocouple under the working condition of atmospheric pressure.

Another thermocouple fixing mode is that an installation seat 29 is welded on the upper portion of a connecting flange 16, a second installation pipe 30 is inserted into the middle position of the installation seat 29, the lower end of a metal pipe 2 penetrates through the second installation pipe 30, a groove is formed in the upper portion of the installation seat 29, a conical sealing ring 35 is installed in the groove, the conical sealing ring 35 is located between the installation seat 29 and the second installation pipe 30, a first locking ring 31 is in threaded connection with the periphery of the installation seat 29, and a second pressing plate 34 is connected to the upper end of the first locking ring 31. When the first locking ring 31 is tightened, the lower end of the second pressure plate 34 abuts against the upper ends of the mounting seat 29 and the conical sealing ring 35, and the conical sealing ring 35 seals between the mounting seat 29 and the second mounting pipe 30. The upper end of the second mounting pipe 30 is connected with a conical sealing ring 35, the lower part of the periphery of the sealing sleeve 9 is in threaded connection with a second locking ring 32, the lower part of the second locking ring 32 is connected with a first pressing plate 33, a third mounting ring 36 is sleeved on the metal pipe 2, a third sealing ring 37 is arranged on the periphery of the third mounting ring 36, the third sealing ring 37 is located between the sealing sleeve 9 and the conical sealing ring 35, the upper end of the first pressing plate 33 is abutted against the lower end of the conical sealing ring 35 by screwing the second locking ring 32, the third sealing ring 37 is clamped by the combined action of the lower end of the sealing sleeve 9 and the upper end of the conical sealing ring 35, and the sealing between the sealing sleeve 9 and the conical sealing ring 35 is realized through the third sealing ring 37. The threaded connection mode is high in strength and suitable for being used under the high-pressure working condition above atmospheric pressure.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.

Claims

1. The utility model provides a sealing device is fixed to thermocouple, includes plug (1) and connects the thermocouple wire on plug (1), and the cover is equipped with tubular metal resonator (2) and ceramic pipe (3) on the thermocouple wire, its characterized in that: be provided with clamp bolt (4) on tubular metal resonator (2), the cover is equipped with first clamping ring (5), first sealing washer (6), second clamping ring (7), second sealing washer (8) and seal cover (9) on tubular metal resonator (2), seal cover (9) can threaded connection on clamp bolt (4), first clamping ring (5), first sealing washer (6), second clamping ring (7), second sealing washer (8) set gradually in seal cover (9), still including being used for fixing the fixed establishment on flange (16) with the thermocouple.

2. A thermocouple securement sealing device as in claim 1 wherein: the compression bolt (4) comprises a threaded column (10) and a support block (11) connected to the right side of the threaded column (10), external threads are arranged on the periphery of the threaded column (10), a threaded hole (15) communicated with the sealing sleeve (9) is formed in the sealing sleeve (9), a mounting hole (14) and a through hole (13) are formed in the sealing sleeve, the through hole (13) is used for the metal pipe (2) to pass through, internal threads are arranged in the threaded hole (15), the mounting hole (14) is in threaded connection with the threaded column (10), the support block (11), a first pressing ring (5), a first sealing ring (6), a second pressing ring (7) and a second sealing ring (8) are located in the mounting hole (14).

3. A thermocouple securement sealing device as claimed in claim 2, wherein: the second press ring (7) is provided with a plurality of exhaust holes (12).

4. A thermocouple securement sealing device according to any one of claims 1-3 and wherein: the fixing mechanism comprises a first mounting pipe (26) arranged on the upper portion of the connecting flange (16), a connecting pipe (20) is arranged above the first mounting pipe (26), the sealing sleeve (9) and the connecting pipe (20) are connected through a first clamp (22), and the connecting pipe (20) and the first mounting pipe (26) are connected through a second clamp (28).

5. A thermocouple securement sealing device according to claim 4, wherein: seal cover (9) sub-unit connection has first ring flange (17), connecting pipe (20) upper portion is connected with second ring flange (21), the cover is equipped with first collar (18) on tubular metal resonator (2), first collar (18) periphery is provided with first sealing ring (19), first sealing ring (19) are located between first ring flange (17) and second ring flange (21), first ring flange (17) and second ring flange (21) outside are located in first collar (22) cover, connecting pipe (20) sub-unit connection has third ring flange (23), first collar (26) upper portion is connected with fourth ring flange (27), the cover is equipped with second collar (24) on tubular metal resonator (2), second collar (24) periphery is provided with second sealing ring (25), second sealing ring (25) are located between third ring flange (23) and fourth ring flange (27), third ring flange (23) and fourth ring flange (27) outside are located to second collar (28) cover.

6. A thermocouple fixing and sealing device according to any one of claims 1 to 3, characterised in that: the fixing mechanism comprises a mounting seat (29) arranged on the upper portion of a connecting flange (16), a second mounting pipe (30) is inserted into the mounting seat (29), the lower end of a metal pipe (2) penetrates through the second mounting pipe (30) to be arranged, a conical sealing ring (35) is arranged on the inner side of the upper portion of the mounting seat (29), the conical sealing ring (35) is arranged between the mounting seat (29) and the second mounting pipe (30), the outer periphery of the mounting seat (29) is in threaded connection with a first locking ring (31), the upper end of the first locking ring (31) is connected with a second pressing plate (34), the lower end of the second pressing plate (34) abuts against the upper end of the mounting seat (29), the upper end of the second mounting pipe (30) is connected with the conical sealing ring (35), the lower portion of the outer periphery of a sealing sleeve (9) is in threaded connection with a second locking ring (32), the lower portion of the second locking ring (32) is connected with a first pressing plate (33), a third mounting ring (36) is sleeved on the metal pipe (2), a third sealing ring (37) is arranged on the outer periphery of the third mounting ring (36), the third sealing ring (37) is arranged between the conical sealing ring (9) and the conical sealing sleeve abuts against the lower end of the conical sealing ring (35).