CN220960343U - Flange type blowing thermocouple - Google Patents
Flange type blowing thermocouple Download PDFInfo
- Publication number
- CN220960343U CN220960343U CN202322511506.6U CN202322511506U CN220960343U CN 220960343 U CN220960343 U CN 220960343U CN 202322511506 U CN202322511506 U CN 202322511506U CN 220960343 U CN220960343 U CN 220960343U
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- flange
- thermocouple
- core
- air
- protective sleeve
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- 238000007664 blowing Methods 0.000 title claims abstract description 49
- 230000001681 protective effect Effects 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 16
- 239000008358 core component Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model provides a flange type blowing thermocouple which comprises a junction box, a core body component and a first flange, wherein the thermocouple is connected with equipment to be measured through the first flange, a lower protective sleeve is arranged on one side of the first flange, which faces the equipment to be measured, the core body component is connected with the junction box, one side, far away from the junction box, of the core body component is arranged in the lower protective sleeve, a blowing cavity is arranged between the inner wall of the lower protective sleeve and the outer wall of the core body component, and the blowing cavity is communicated with an external air source and is used for blowing the core body component; according to the utility model, the thermocouple core is blown, and corrosive gas at the thermocouple core is blown out of the thermocouple, so that the corrosive gas is prevented from corroding the thermocouple core, the service lives of the thermocouple core and the thermocouple are prolonged, the part structure of the thermocouple is simplified, and the assembly difficulty is reduced.
Description
Technical Field
The utility model relates to the technical field of thermocouples, in particular to a flange type blowing thermocouple.
Background
The thermocouple is a commonly used temperature measuring element in the industrial field, and has the advantages of high measurement temperature, wide measurement range, simple structure, low price and the like.
When the thermocouple is used, although the measuring end of the thermocouple is used for measuring the temperature of a measuring medium, when equipment with corrosive gas (such as a furnace containing acid gas) is used for measuring the temperature, the corrosive gas often corrodes the thermocouple core, so that the thermocouple core is easy to damage and has a short service life.
Disclosure of utility model
In view of the above, the utility model aims to provide a flange type blowing thermocouple, which solves the problems that a thermocouple core is easy to be corroded and damaged and the service life is short when equipment with corrosive gas is subjected to temperature measurement in the prior art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
The utility model provides a flange formula thermocouple of blowing, includes terminal box, core subassembly, first flange, the thermocouple is connected with by temperature measuring equipment through first flange, first flange sets up down protective sheath towards one side by temperature measuring equipment, core subassembly is connected with the terminal box, one side that the terminal box was kept away from to the core subassembly is set up under protective sheath, have the air cavity of blowing down between protective sheath's inner wall and the outer wall of core subassembly, air cavity and outside air supply intercommunication for blow to the core subassembly.
Further, an air inlet channel and an air outlet channel are arranged in the first flange, an air inlet of the air inlet channel is communicated with an external air source, an air outlet of the air inlet channel is communicated with the air blowing cavity, an air inlet of the air outlet channel is communicated with the air blowing cavity, and an air outlet of the air outlet channel extends to the outside of the thermocouple.
Further, an air inlet of the air inlet channel is provided with an air inlet joint, an air outlet of the air outlet channel is provided with an air outlet joint, an external air source is connected with the air inlet joint through an air inlet pipeline, and the air outlet joint is connected with an air outlet pipeline.
Further, in the gas flow direction along the inlet gas, a gas source ball valve and a filtering pressure reducing valve are arranged in the inlet line in sequence.
Further, the thermocouple comprises an upper protection sleeve, one end of the upper protection sleeve is connected with the junction box, the other end of the upper protection sleeve is connected with the first flange, and one end of the core component, which is far away from the junction box, penetrates through the upper protection sleeve and extends into the lower protection sleeve.
Further, the upper protection sleeve is provided with a first threaded joint, one side, far away from the lower protection sleeve, of the first flange is provided with a second threaded joint, and the first threaded joint and the second threaded joint are connected through threads.
Further, the core body component comprises a temperature measuring core body and a core body protecting sleeve, the core body protecting sleeve is sleeved outside the temperature measuring core body, and a blowing cavity is arranged between the outer wall of the core body protecting sleeve and the lower protecting sleeve.
Further, the equipment to be measured is provided with a second flange, the second flange is connected with the first flange through a fastener, and a sealing gasket is arranged between the second flange and the first flange.
Compared with the prior art, the flange type blowing thermocouple has the following advantages:
According to the flange type blowing thermocouple, the first flange is arranged, so that the thermocouple can be firmly installed on equipment to be measured, on the basis, the lower protective sleeve is arranged on the first flange, the core body assembly is inserted into the lower protective sleeve to form the blowing cavity, an external air source supplies air to the blowing cavity, the thermocouple core body is blown, corrosive gas at the thermocouple core body is blown out of the thermocouple, the corrosive gas is prevented from corroding the thermocouple core body, and the service life of the thermocouple core body and the thermocouple is prolonged.
Meanwhile, in the use process of the flange type blowing thermocouple, on one hand, the installation firmness of the flange type blowing thermocouple can be ensured, and on the other hand, the lower protection sleeve is integrally arranged on the first flange, so that the blowing of the thermocouple core body is ensured, meanwhile, the part structure of the thermocouple is simplified, and the assembly difficulty is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a flange-type blowing thermocouple according to an embodiment of the present utility model;
fig. 2 is an enlarged view of a portion of an embodiment of the present utility model at a in fig. 1.
Reference numerals illustrate:
1. A stud; 2. a nut; 3. a sealing gasket; 4. an air source ball valve; 5. a filter pressure reducing valve; 6. an air intake line; 7. an air inlet joint; 8. a protective sleeve is arranged; 9. a junction box; 10. movably connected; 11. a first threaded joint; 12. a second threaded joint; 13. a protective sleeve is arranged on the upper part; 14. a core assembly; 141. a temperature measurement core; 142. a core protective sleeve; 15. an air outlet joint; 16. a first flange; 17. an air intake passage; 18. an air outlet channel; 19. a second flange; 20. connecting pipe; 21. and (5) blowing the air cavity.
Detailed Description
The inventive concepts of the present disclosure will be described below using terms commonly used by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
In order to solve the problems that in the prior art, when the temperature of equipment with corrosive gas is measured, a thermocouple core is easy to be corroded and damaged, and the service life is short, the embodiment provides a flange type blowing thermocouple, as shown in fig. 1-2, the thermocouple comprises a junction box 9, a core component 14 and a first flange 16, the flange type blowing thermocouple is connected with the measured temperature equipment through the first flange 16, a lower protective sleeve 8 is arranged on one side of the first flange 16, which faces the measured temperature equipment, the core component 14 is connected with the junction box 9, one side, which is far away from the junction box 9, of the core component 14 is arranged in the lower protective sleeve 8, a blowing cavity 21 is formed between the inner wall of the lower protective sleeve 8 and the outer wall of the core component 14, and an external air source can blow air into the blowing cavity 21 for blowing the core component 14 of the thermocouple.
Firstly, the first flange 16 is arranged, so that the thermocouple can be firmly installed on the equipment to be measured, on the basis, the lower protective sleeve 8 is arranged on the first flange 16, the core body assembly 14 is inserted into the lower protective sleeve 8, the air blowing cavity 21 is formed, an external air source blows air into the air blowing cavity 21, the thermocouple core body is blown, corrosive gas at the thermocouple core body is blown out of the thermocouple, the corrosive gas is prevented from corroding the thermocouple core body, and the service life of the thermocouple core body and the thermocouple is prolonged. Therefore, in the use process of the flange type blowing thermocouple, on one hand, the installation firmness of the flange type blowing thermocouple can be ensured, and on the other hand, the lower protection sleeve 8 is integrally arranged on the first flange 16, so that the blowing of the thermocouple core body is ensured, meanwhile, the part structure of the thermocouple is simplified, and the assembly difficulty is reduced.
The equipment to be measured can be a claus furnace, an incinerator and other furnaces with corrosive gases, or other equipment with corrosive mediums.
An air inlet channel 17 and an air outlet channel 18 are arranged in the first flange 16, an air inlet of the air inlet channel 17 is communicated with an external air source, an air outlet of the air inlet channel 17 is communicated with the air blowing cavity 21, an air inlet of the air outlet channel 18 is communicated with the air blowing cavity 21, and an air outlet of the air outlet channel 18 is communicated with the external environment or other external equipment, so that along with the air supply of the external air source, air enters the air blowing cavity 21 through the air inlet channel 17, and corrosive gas in the thermowell is blown to the outside of the thermowell.
The thermocouple comprises an upper protective sleeve 13, one end of the upper protective sleeve 13 is connected with the junction box 9 through a loose joint 10, the other end of the upper protective sleeve 13 is connected with a first flange 16, the core assembly 14 is arranged in the upper protective sleeve 13, and specifically, one end of the core assembly 14, which is far away from the junction box 9, penetrates through the upper protective sleeve 13 and extends into the lower protective sleeve 8. The core assembly 14 is thereby protected by the junction box 9, the upper protective sleeve 13, the first flange 16, the lower protective sleeve 8, etc.
For the assembly between the upper protection sleeve 13 and the first flange 16, the upper protection sleeve 13 is provided with a first screwed joint 11, one side of the first flange 16 far away from the lower protection sleeve 8 is provided with a second screwed joint 12, and the first screwed joint 11 and the second screwed joint 12 are connected through threads, so that the related components can be conveniently disassembled, assembled or replaced. For example: the first threaded joint 11 has a male thread of the specification M27mm x 2 and the second threaded joint 12 has a female thread of the specification M27mm x 2.
The core assembly 14 may be a temperature measuring core 141, and the temperature measuring core 141 is inserted into the lower protection sleeve 8, and a blowing cavity 21 is formed between the temperature measuring core 141 and the lower protection sleeve 8. However, considering that the end of the temperature measuring core 141 is easily damaged by external force, the core assembly 14 may also include a temperature measuring core 141 and a core protecting sleeve 142, where the core protecting sleeve 142 is sleeved outside the temperature measuring core 141 to provide protection for the temperature measuring core 141, and accordingly, the core assembly 14 is inserted into the lower protecting sleeve 8, and a blowing cavity 21 is formed between the outer wall of the core protecting sleeve 142 and the lower protecting sleeve 8, so that the thermocouple core can be further prevented from being corroded by corrosive gas, and the service life of the thermocouple core and the thermocouple can be fully guaranteed.
For the air inlet and the air outlet of the thermocouple, the first flange 16 is provided with an air inlet joint 7 at the air inlet of the air inlet channel 17, the air outlet of the air outlet channel 18 is provided with an air outlet joint 15, an external air source is connected with the air inlet joint 7 through the air inlet pipeline 6, and the air outlet joint 15 is connected with the air outlet pipeline. Specifically, in the air flow along admitting air upwards, air supply ball valve 4, filtration relief pressure valve 5 in proper order in the inlet line 6 can adjust the gas flow of supply according to actual need on the one hand, filters the air current simultaneously, avoids the foreign matter to get into in the thermocouple, on the other hand can send into the thermocouple again after adjusting the air current pressure to suitable pressure and blow in, avoids atmospheric pressure too big influence the steady operation of thermocouple. For example: the specification of the air inlet joint 7 can be a 1/4' NPT-phi 8mm ferrule joint, the air inlet pipeline 6 is a phi 8mm pipeline, and the air outlet joint 15 and the air outlet pipeline can be correspondingly arranged.
In order to facilitate the processing of the first flange 16, too concentrated arrangement of parts on the first flange 16 is avoided, the central line of the core assembly 14 is taken as an axis, the air inlet connector 7 and the air outlet connector 15 are symmetrically arranged, and the air inlet channel 17 and the air outlet channel 18 can be symmetrically arranged.
For the connection of the thermocouple and the equipment to be measured, besides the first flange 16, the second flange 19 is arranged on the equipment to be measured, the second flange 19 is connected with the first flange 16 through a fastener, and meanwhile, the sealing gasket 3 is arranged between the second flange 19 and the first flange 16, so that the thermocouple and the equipment to be measured can be firmly connected, and the normal running state of the equipment to be measured is ensured, and the influence on the tightness of the equipment to be measured due to the installation of the thermocouple is avoided. Specifically, the second flange 19 is connected with the first flange 16 through the stud 1, and nuts 2 are arranged on two sides of the stud 1.
Furthermore, the device to be measured can be further provided with a connecting pipe 20, one end of the connecting pipe 20 is connected with the shell structure of the device to be measured, and the other end extends towards the direction away from the device to be measured and is connected with a second flange 19. Therefore, the installation position of the thermocouple can be far away from a high-temperature area as far as possible, and the thermocouple measuring end can extend to the area needing temperature measurement. Both ends of the adapter tube 20 may be connected by welding.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. The flange type blowing thermocouple is characterized by comprising a junction box (9), a core body assembly (14) and a first flange (16), wherein the thermocouple is connected with equipment to be measured by the temperature through the first flange (16), a lower protective sleeve (8) is arranged on one side, facing the equipment to be measured, of the first flange (16), the core body assembly (14) is connected with the junction box (9), one side, far away from the junction box (9), of the core body assembly (14) is arranged in the lower protective sleeve (8), a blowing cavity (21) is arranged between the inner wall of the lower protective sleeve (8) and the outer wall of the core body assembly (14), and the blowing cavity (21) is communicated with the outside air source and is used for blowing the core body assembly (14);
An air inlet channel (17) and an air outlet channel (18) are arranged in the first flange (16), an air inlet of the air inlet channel (17) is communicated with an external air source, an air outlet of the air inlet channel (17) is communicated with an air blowing cavity (21), an air inlet of the air outlet channel (18) is communicated with the air blowing cavity (21), and an air outlet of the air outlet channel (18) extends to the outside of the thermocouple; an air inlet of the air inlet channel (17) is provided with an air inlet joint (7), an air outlet of the air outlet channel (18) is provided with an air outlet joint (15), an external air source is connected with the air inlet joint (7) through an air inlet pipeline (6), and the air outlet joint (15) is connected with an air outlet pipeline.
2. A flange-type blowing thermocouple according to claim 1, characterized in that in the gas flow direction along the intake air, the air supply ball valve (4), the filter pressure reducing valve (5) are arranged in the intake line (6) in this order.
3. A flange-type blowing thermocouple according to claim 1, characterized in that the thermocouple comprises an upper protective sleeve (13), one end of the upper protective sleeve (13) is connected with the junction box (9), the other end is connected with the first flange (16), and the end of the core assembly (14) remote from the junction box (9) penetrates the upper protective sleeve (13) and extends into the lower protective sleeve (8).
4. A flange-type blowing thermocouple according to claim 3, characterized in that the upper protective sleeve (13) is provided with a first threaded joint (11), the side of the first flange (16) away from the lower protective sleeve (8) is provided with a second threaded joint (12), and the first threaded joint (11) and the second threaded joint (12) are connected through threads.
5. A flange type blowing thermocouple according to claim 1, wherein the core assembly (14) comprises a temperature measuring core (141) and a core protection sleeve (142), the core protection sleeve (142) is sleeved outside the temperature measuring core (141), and a blowing cavity (21) is arranged between the outer wall of the core protection sleeve (142) and the lower protection sleeve (8).
6. A flange-type blowing thermocouple according to claim 1, characterized in that the equipment to be measured is provided with a second flange (19), the second flange (19) is connected with the first flange (16) through a fastener, and a sealing gasket (3) is arranged between the second flange (19) and the first flange (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322511506.6U CN220960343U (en) | 2023-09-15 | 2023-09-15 | Flange type blowing thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322511506.6U CN220960343U (en) | 2023-09-15 | 2023-09-15 | Flange type blowing thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220960343U true CN220960343U (en) | 2024-05-14 |
Family
ID=90976658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322511506.6U Active CN220960343U (en) | 2023-09-15 | 2023-09-15 | Flange type blowing thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220960343U (en) |
-
2023
- 2023-09-15 CN CN202322511506.6U patent/CN220960343U/en active Active
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