CN210351698U - Improved structure of radiant tube - Google Patents
Improved structure of radiant tube Download PDFInfo
- Publication number
- CN210351698U CN210351698U CN201920555515.6U CN201920555515U CN210351698U CN 210351698 U CN210351698 U CN 210351698U CN 201920555515 U CN201920555515 U CN 201920555515U CN 210351698 U CN210351698 U CN 210351698U
- Authority
- CN
- China
- Prior art keywords
- straight pipe
- panel
- pipe
- straight
- radiant tube
- 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
- 229920000742 Cotton Polymers 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
An improved structure of a radiant tube comprises a first straight tube and a second straight tube, wherein the left ends of the first straight tube and the second straight tube are provided with an elbow, and the elbow is used for communicating the first straight tube with the second straight tube; the left end of the elbow is provided with a supporting block; the right ends of the first straight pipe and the second straight pipe penetrate through the rectangular panel, the left side of the panel is provided with a protection plate, and heat insulation cotton is arranged between the panel and the protection plate; the right side of the first straight pipe is provided with a corrugated pipe, the left end of the corrugated pipe is connected and fixed with the panel, and the right end of the corrugated pipe is connected and fixed with the first straight pipe; the second straight pipe penetrates through the panel and is fixedly connected with the panel; the utility model discloses simple structure, stability is good, safe and reliable, has reduced the body in the use and has leaded to the welding seam fracture because of the thermal expansion, effectively avoids the body fracture, has prolonged the life of radiant tube greatly.
Description
Technical Field
The utility model relates to a field of radiant tube especially relates to an improvement structure of radiant tube.
Background
The radiant tube is used for sealing the electric heating element in the protective sleeve and electrifying to generate heat, and indirectly radiating the heat to the furnace lining and the processed workpiece by the sleeve, and is widely applied to various heating furnaces in the heat treatment industry; in the U-shaped radiant tube structure in the prior art, two straight tubes are directly welded with a panel, and a welding seam is easy to crack due to thermal expansion of a tube body in the using process, so that the atmosphere in a furnace leaks, and the tube body is more seriously cracked; the service life of the radiant tube is shortened; therefore, a new radiant tube structure needs to be designed.
Disclosure of Invention
The utility model aims at providing an improved structure of a radiant tube, which has simple structure and good stability; the technical problem is solved.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: an improved structure of a radiant tube is characterized in that: the connecting device comprises a first straight pipe and a second straight pipe, wherein the left ends of the first straight pipe and the second straight pipe are provided with an elbow, and the elbow is used for communicating the first straight pipe with the second straight pipe; the left end of the elbow is provided with a supporting block; the right ends of the first straight pipe and the second straight pipe penetrate through the rectangular panel, the left side of the panel is provided with a protection plate, and heat insulation cotton is arranged between the panel and the protection plate; the right side of the first straight pipe is provided with a corrugated pipe, the left end of the corrugated pipe is connected and fixed with the panel, and the right end of the corrugated pipe is connected and fixed with the first straight pipe; the second straight pipe penetrates through the panel and is connected and fixed with the panel.
Preferably: the protection plate comprises a rectangular bottom plate, side plates are arranged on the periphery of the bottom plate, and the side plates are consistent in height.
Preferably: the corrugated pipe is sleeved on the first straight pipe, and the inner diameter of the corrugated pipe is equal to the outer diameter of the first straight pipe.
Preferably: the corrugated pipe is made of stainless steel.
Preferably: flanges are arranged at the right ends of the first straight pipe and the second straight pipe.
The utility model has the advantages that; an improved structure of a radiant tube, compared with the traditional structure: the right end of the first straight pipe is additionally connected with a corrugated pipe, the corrugated pipe is sleeved on the first straight pipe, the left end of the corrugated pipe is connected and fixed with the panel, and the right end of the corrugated pipe is connected and fixed with the first straight pipe; the second straight pipe is directly welded with the panel, and can freely expand and contract in the using and heating process, so that the service life of the radiant tube is prolonged; the utility model discloses simple structure, stability is good, safe and reliable, has reduced the body in the use and has leaded to the welding seam fracture because of the thermal expansion, effectively avoids the body fracture, has prolonged the life of radiant tube greatly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a first straight pipe; 2. bending the pipe; 3. a support block; 4. a panel; 5. a bellows; 6. a flange; 7. heat preservation cotton; 8. a protection plate; 8-1, a bottom plate; 8-2, side plate; 9. a second straight pipe.
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: an improved structure of a radiant tube is characterized in that: the connecting device comprises a first straight pipe 1 and a second straight pipe 9, wherein the left ends of the first straight pipe 1 and the second straight pipe 2 are provided with an elbow 2, and the elbow 2 is used for communicating the first straight pipe 1 with the second straight pipe 9; the left end of the elbow 9 is provided with a supporting block 3; the right ends of the first straight pipe 1 and the second straight pipe 9 penetrate through the rectangular panel 4, the left side of the panel 4 is provided with a protection plate 8, and heat insulation cotton 7 is arranged between the panel 4 and the protection plate 8; the right side of the first straight pipe 1 is provided with a corrugated pipe 5, the left end of the corrugated pipe 5 is connected and fixed with the panel 4, and the right end of the corrugated pipe 5 is connected and fixed with the first straight pipe 1; the second straight pipe 9 passes through the panel 4 and is connected and fixed with the panel 4.
The protection plate 8 comprises a rectangular bottom plate 8-1, side plates 8-2 are arranged on the periphery of the bottom plate 8-1, and the heights of the side plates 8-2 are consistent; the corrugated pipe 5 is sleeved on the first straight pipe 1, and the inner diameter of the corrugated pipe 5 is equal to the outer diameter of the first straight pipe 1; the corrugated pipe 5 is made of stainless steel; the right ends of the first straight pipe 1 and the second straight pipe 9 are both provided with flanges 6.
The utility model discloses a concrete implementation: sheathing the protection plate and the panel from the right ends of the first straight pipe and the second straight pipe, filling heat preservation cotton between the protection plate and the panel, and filling 128kg of heat preservation cotton per cubic meter; the panel and the second straight pipe are connected and fixed through welding; the right-hand member at first straight tube embolias the bellows, is connected fixedly through the welded connection between the left end of bellows and the panel, and is connected fixedly through the welded connection between the right-hand member of bellows and the first straight tube.
The corrugated pipe is added, so that the cracking of welding seams of the pipe body caused by thermal expansion is reduced in the using process of the radiant tube, the breakage of the pipe body is effectively avoided, and the service life of the radiant tube is greatly prolonged.
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 (5)
1. An improved structure of a radiant tube is characterized in that: the connecting device comprises a first straight pipe (1) and a second straight pipe (9), wherein an elbow (2) is arranged at the left ends of the first straight pipe (1) and the second straight pipe (9), and the elbow (2) is used for communicating the first straight pipe (1) with the second straight pipe (9); the left end of the elbow (2) is provided with a supporting block (3); the right ends of the first straight pipe (1) and the second straight pipe (9) penetrate through the rectangular panel (4), the left side of the panel (4) is provided with a protection plate (8), and heat insulation cotton (7) is arranged between the panel (4) and the protection plate (8); the right side of the first straight pipe (1) is provided with a corrugated pipe (5), the left end of the corrugated pipe (5) is connected and fixed with the panel (4), and the right end of the corrugated pipe (5) is connected and fixed with the first straight pipe (1); the second straight pipe (9) penetrates through the panel (4) and is connected and fixed with the panel (4).
2. An improved structure of a radiant tube as claimed in claim 1, wherein: the protective plate (8) comprises a rectangular bottom plate (8-1), side plates (8-2) are arranged on the periphery of the bottom plate (8-1), and the side plates (8-2) are consistent in height.
3. An improved structure of a radiant tube as claimed in claim 1, wherein: the corrugated pipe (5) is sleeved on the first straight pipe (1), and the inner diameter of the corrugated pipe (5) is equal to the outer diameter of the first straight pipe (1).
4. An improved structure of a radiant tube as claimed in claim 1, wherein: the corrugated pipe (5) is made of stainless steel.
5. An improved structure of a radiant tube as claimed in claim 1, wherein: flanges (6) are arranged at the right ends of the first straight pipe (1) and the second straight pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555515.6U CN210351698U (en) | 2019-04-23 | 2019-04-23 | Improved structure of radiant tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920555515.6U CN210351698U (en) | 2019-04-23 | 2019-04-23 | Improved structure of radiant tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210351698U true CN210351698U (en) | 2020-04-17 |
Family
ID=70180251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920555515.6U Expired - Fee Related CN210351698U (en) | 2019-04-23 | 2019-04-23 | Improved structure of radiant tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210351698U (en) |
-
2019
- 2019-04-23 CN CN201920555515.6U patent/CN210351698U/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: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |