CN209802526U - Radiant tube with thermowell - Google Patents
Radiant tube with thermowell Download PDFInfo
- Publication number
- CN209802526U CN209802526U CN201920555397.9U CN201920555397U CN209802526U CN 209802526 U CN209802526 U CN 209802526U CN 201920555397 U CN201920555397 U CN 201920555397U CN 209802526 U CN209802526 U CN 209802526U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- straight tube
- elbow
- straight
- thermocouple
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
Abstract
A radiant tube with a thermocouple well comprises a first straight tube, a second straight tube, a third straight tube and a fourth straight tube which are arranged in parallel, wherein the left end of the first straight tube is connected with the second straight tube through a first elbow, the right end of the second straight tube is connected with the third straight tube through a second elbow, and the left end of the third straight tube is connected with the fourth straight tube through a third elbow; the first elbow, the second elbow and the third elbow are all arranged in a semicircular shape; a thermocouple sleeve is arranged below the third straight pipe and is connected and fixed with the third straight pipe through a fixing block; the thermocouple sleeve comprises a left sleeve, a middle sleeve and a right sleeve, wherein the left sleeve is symmetrically provided with two kidney-shaped grooves, a double-bellmouth pipe hoop is arranged between the middle sleeve and the right sleeve, and the right end of the right sleeve is provided with a threaded joint; the utility model discloses simple structure has improved thermowell's stability greatly, and the security performance is good, connects reliably, makes temperature measurement more accurate.
Description
Technical Field
The utility model relates to a field of radiant tube especially relates to a take thermowell's radiant tube.
Background
A large number of radiant tubes are arranged in a heating furnace for continuous annealing and continuous galvanizing to heat the furnace, and a thermocouple is arranged in each furnace area to control the working state of the radiant tubes in the furnace areas when the temperature reaches the temperature specified by the process, so that the furnace temperature is better controlled, and the energy consumption is reduced; in the prior art, the thermocouple well is in a closed state, certain errors exist in measurement, and the working state cannot be adjusted in time; the thermocouple sleeve needs to be fixed on the radiant tube during assembly, the fixing block in the prior art is welded on the radiant tube in a plane mode, and due to the fact that a certain gap exists at a right-angle position, cracking easily occurs in the heating process, the fixing block is detached from welding, stability of the thermocouple sleeve is affected, and the measuring effect is indirectly affected.
Disclosure of Invention
The utility model aims at providing a take thermowell's radiant tube, compact structure connects reliably, has solved above technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: a radiant tube with a thermocouple well comprises a first straight tube, a second straight tube, a third straight tube and a fourth straight tube which are arranged in parallel, wherein the left end of the first straight tube is connected with the second straight tube through a first elbow, the right end of the second straight tube is connected with the third straight tube through a second elbow, and the left end of the third straight tube is connected with the fourth straight tube through a third elbow; the first elbow, the second elbow and the third elbow are all arranged in a semicircular shape; the method is characterized in that: a thermocouple sleeve is arranged below the third straight pipe and is connected and fixed with the third straight pipe through a fixing block; the thermocouple sleeve comprises a left sleeve, a middle sleeve and a right sleeve, wherein the left sleeve is symmetrically provided with two kidney-shaped grooves, a double-bellmouth pipe hoop is arranged between the middle sleeve and the right sleeve, and the right end of the right sleeve is provided with a threaded joint.
Preferably: the left sleeve is horizontally arranged, an included angle alpha is arranged between the middle sleeve and the left sleeve, and the angle alpha is 10 degrees.
Preferably: the kidney-shaped groove is arranged in the middle of the left sleeve.
Preferably: the fixed blocks are sequentially arranged below the third straight pipe, the upper end face of each fixed block is in an arc shape matched with the diameter of the outer circle of the third straight pipe, and the fixed blocks are fixedly connected with the third straight pipe through welding; the thermocouple sleeve sequentially penetrates through the through hole in the center of the fixing block.
The utility model has the advantages that; a radiant tube with a thermowell, compared with the traditional structure: waist-shaped key grooves are symmetrically formed in the middle of the left sleeve of the thermocouple sleeve, so that the furnace temperature can be better transmitted to the thermocouple, the measurement accuracy is improved, and the energy consumption is reduced; the fixed blocks are sequentially arranged below the third straight pipe, the upper end face of each fixed block is in an arc shape matched with the diameter of the outer circle of the third straight pipe, and the fixed blocks are fixedly connected with the third straight pipe through welding; the contact area of welding is increased, so that the connection is firmer and more stable, and the fixed block is effectively prevented from being detached from welding; the utility model discloses simple structure has improved thermowell's stability greatly, and the security performance is good, connects reliably, makes temperature measurement more accurate.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the thermowell of the present invention;
FIG. 3 is a schematic view of the fixing block structure of the present invention;
In the figure: 1. a first straight pipe; 2. a second straight pipe; 3. a third straight pipe; 4. a fourth straight pipe; 5. a first elbow; 6. a second elbow; 7. a third elbow; 8. a thermowell; 8-1, a left sleeve; 8-2, intermediate sleeve; 8-3. a right sleeve; 9. a fixed block; 9-1. a through hole; 10. a kidney-shaped groove; 11. a dual-bellmouth ferrule; 12. provided is a threaded joint.
Detailed Description
in order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
In the drawings: a radiant tube with a thermowell comprises a first straight tube 1, a second straight tube 2, a third straight tube 3 and a fourth straight tube 4 which are arranged in parallel, wherein the left end of the first straight tube 1 is connected with the second straight tube 2 through a first elbow 5, the right end of the second straight tube 2 is connected with the third straight tube 3 through a second elbow 6, and the left end of the third straight tube 3 is connected with the fourth straight tube 4 through a third elbow 7; the first elbow 5, the second elbow 6 and the third elbow 7 are all arranged in a semicircular shape; the method is characterized in that: a thermocouple sleeve 8 is arranged below the third straight pipe 3, and the thermocouple sleeve 8 is connected and fixed with the third straight pipe 3 through a fixing block 9; the thermocouple sleeve 8 comprises a left sleeve 8-1, a middle sleeve 8-2 and a right sleeve 8-3, wherein the left sleeve 8-1 is symmetrically provided with two kidney-shaped grooves 10, a double-bellmouth pipe hoop 11 is arranged between the middle sleeve 8-2 and the right sleeve 8-3, and the right end of the right sleeve 8-3 is provided with a threaded joint 12.
The left sleeve 8-1 is horizontally arranged, an included angle alpha is arranged between the middle sleeve 8-2 and the left sleeve 8-1, and alpha is 10 degrees; the kidney-shaped groove 10 is arranged in the middle of the left sleeve 8-1; the fixed blocks 9 are sequentially arranged below the third straight pipe 3, the upper end face of each fixed block is in an arc shape matched with the diameter of the outer circle of the third straight pipe, and the fixed blocks are fixedly connected with the third straight pipe 3 through welding; the thermocouple sleeve 8 sequentially penetrates through a through hole 9-1 in the center of the fixing block 9.
The utility model discloses a concrete implementation: the diameter of the thermocouple sleeve is 26.67mm, and the wall thickness is 3.91 mm; the waist-shaped groove on the left sleeve is 62mm in length and 12mm in width; the material of a double-bellmouth pipe hoop between the middle sleeve and the right sleeve is 1Cr18Ni9Ti, and the threaded joint at the right end of the right sleeve is a 3/4' inner plug; the radius of the third straight pipe is R100mm, and the arc radius of the upper end of the fixing block is R101 mm; due to the arrangement of the waist-shaped key groove, the furnace temperature can be better transmitted to the thermocouple, the measurement accuracy is improved, and the energy consumption is reduced; the arc radius of the fixed block is matched with the outer circle radius of the third straight pipe, so that the contact area of welding is increased, the connection is firmer and more stable, and the fixed block is effectively prevented from being detached from welding.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (4)
1. a radiant tube with a thermocouple well comprises a first straight tube (1), a second straight tube (2), a third straight tube (3) and a fourth straight tube (4) which are arranged in parallel, wherein the left end of the first straight tube (1) is connected with the second straight tube (2) through a first elbow (5), the right end of the second straight tube (2) is connected with the third straight tube (3) through a second elbow (6), and the left end of the third straight tube (3) is connected with the fourth straight tube (4) through a third elbow (7); the first elbow (5), the second elbow (6) and the third elbow (7) are all arranged in a semicircular shape; the method is characterized in that: a thermocouple sleeve (8) is arranged below the third straight pipe (3), and the thermocouple sleeve (8) is connected and fixed with the third straight pipe (3) through a fixing block (9); the thermocouple sleeve (8) comprises a left sleeve (8-1), a middle sleeve (8-2) and a right sleeve (8-3), wherein two kidney-shaped grooves (10) are symmetrically formed in the left sleeve (8-1), a double-bellmouth pipe hoop (11) is arranged between the middle sleeve (8-2) and the right sleeve (8-3), and a threaded joint (12) is arranged at the right end of the right sleeve (8-3).
2. The thermowell-equipped radiant tube according to claim 1, characterized in that: the left sleeve (8-1) is horizontally arranged, an included angle alpha is arranged between the middle sleeve (8-2) and the left sleeve (8-1), and the alpha is 10 degrees.
3. the thermowell-equipped radiant tube according to claim 1, characterized in that: the kidney-shaped groove (10) is arranged in the middle of the left sleeve (8-1).
4. The thermowell-equipped radiant tube according to claim 1, characterized in that: the fixed blocks (9) are sequentially arranged below the third straight pipe (3), the upper end surface of each fixed block is in an arc shape matched with the diameter of the excircle of the third straight pipe, and the fixed blocks are fixedly connected with the third straight pipe (3) through welding; the thermocouple sleeve (8) sequentially penetrates through a through hole (9-1) in the center of the fixing block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555397.9U CN209802526U (en) | 2019-04-23 | 2019-04-23 | Radiant tube with thermowell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555397.9U CN209802526U (en) | 2019-04-23 | 2019-04-23 | Radiant tube with thermowell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209802526U true CN209802526U (en) | 2019-12-17 |
Family
ID=68830496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920555397.9U Expired - Fee Related CN209802526U (en) | 2019-04-23 | 2019-04-23 | Radiant tube with thermowell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209802526U (en) |
-
2019
- 2019-04-23 CN CN201920555397.9U patent/CN209802526U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 |