CN202708472U - Anti-abrasion bushing of waste heat boiler heat exchange tube - Google Patents
Anti-abrasion bushing of waste heat boiler heat exchange tube Download PDFInfo
- Publication number
- CN202708472U CN202708472U CN 201220386596 CN201220386596U CN202708472U CN 202708472 U CN202708472 U CN 202708472U CN 201220386596 CN201220386596 CN 201220386596 CN 201220386596 U CN201220386596 U CN 201220386596U CN 202708472 U CN202708472 U CN 202708472U
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- heat exchange
- exchange tube
- bushing
- abrasion
- casing
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- Expired - Fee Related
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Abstract
The utility model provides an anti-abrasion bushing of a waste heat boiler heat exchange tube, and relates to an anti-abrasion bushing of a boiler heat exchange tube. The anti-abrasion bushing of the waste heat boiler heat exchange tube solves the problems that an air inlet end of an existing anti-abrasion bushing is in a circular tube shape, when boiler waste steam is guided into a heat exchange tube, resistance is large, the anti-abrasion bushing is connected with the heat exchange tube in a welding mode, once the heat exchange tube is damaged, the anti-abrasion bushing must be replaced simultaneously, and heat exchange cost is increased. According to the anti-abrasion bushing, an air inlet end of the cylindrical bushing is provided with a trumpet mouth, a circular ring positioning plate is fixedly sleeved on the outer side wall of the cylindrical bushing and is vertical to the axis of the cylindrical bushing, an air outlet end of the cylindrical bushing is inserted into the heat exchange tube, and the circular ring positioning plate is tightly attached to the end face of an air inlet end of the heat exchange tube. The anti-abrasion bushing is used for avoiding excessive abrasion of the waste heat boiler heat exchange tube.
Description
Technical field
The utility model relates to a kind of Antiwear casing of boiler heat exchange pipe.
Background technique
Heat exchanging tube is the critical elements that waste heat boiler carries out the gas heat exchange, and boiler waste gas carries out the gas heat exchange by the heat exchanging tube of waste heat boiler, and in the gas heat exchange process, an end of heat exchanging tube air inlet and boiler waste gas friction are large, fragile.At present employing reduces the friction of boiler waste gas exchange heat pipe in the mode of an Antiwear casing of inwall suit of heat exchanging tube, but because the inlet end of existing Antiwear casing is circular tube shaped, resistance was larger when boiler waste gas imported in the heat exchanging tube, and Antiwear casing and heat exchanging tube adopt the Placement of welding, in case heat exchanging tube damages, must change simultaneously Antiwear casing, increase the heat exchange cost.
The model utility content
The utility model is circular tube shaped for the inlet end that solves existing Antiwear casing, resistance was larger when boiler waste gas imported in the heat exchanging tube, and Antiwear casing and heat exchanging tube adopt the Placement of welding, in case heat exchanging tube damages, must change simultaneously Antiwear casing, increased the problem of heat exchange cost, and then a kind of Antiwear casing of waste heat boiler heat exchanging tube is provided.
The utility model is to solve the problems of the technologies described above the technological scheme of taking to be:
A kind of Antiwear casing of waste heat boiler heat exchanging tube comprises cylindrical casing, described Antiwear casing also comprises the annulus positioning plate, the inlet end of cylindrical casing is provided with horn mouth, the annulus positioning plate be fixedly set on the outer side wall of cylindrical casing and the annulus positioning plate perpendicular to the axis setting of cylindrical casing, the outlet side of cylindrical casing is inserted in the heat exchanging tube and the end face of the inlet end of annulus positioning plate and heat exchanging tube fits tightly setting.
The utility model compared with prior art has following beneficial effect: the inlet end of Antiwear casing arranges horn mouth, reduced the resistance when boiler waste gas imports heat exchanging tube, Antiwear casing fits tightly by the end face of the inlet end of annulus positioning plate and heat exchanging tube, the outlet side of Antiwear casing is inserted in the heat exchanging tube, convenient disassembly when heat exchanging tube damages, only needs to change heat exchanging tube and gets final product, Antiwear casing can be reused, and has saved the heat exchange cost.
Description of drawings
Fig. 1 is that the master of Antiwear casing of the present utility model looks sectional view, and Fig. 2 is the right elevation of Fig. 1, and Fig. 3 is the fundamental diagram of Antiwear casing of the present utility model, the flow direction that is oriented to boiler waste gas of arrow shown in the figure.
Embodiment
Embodiment one: in conjunction with Fig. 1～Fig. 3 explanation, the Antiwear casing of a kind of waste heat boiler heat exchanging tube of present embodiment comprises cylindrical casing 1, described Antiwear casing also comprises annulus positioning plate 2, the inlet end of cylindrical casing 1 is provided with horn mouth 1-1, annulus positioning plate 2 be fixedly set on the outer side wall of cylindrical casing 1 and annulus positioning plate 2 perpendicular to the axis setting of cylindrical casing 1, the outlet side of cylindrical casing 1 is inserted in the heat exchanging tube 3 and the end face of annulus positioning plate 2 and the inlet end of heat exchanging tube 3 fits tightly setting.
Embodiment two: the Antiwear casing of present embodiment is porcelain bushing.So design, both guaranteed the wear resistance of Antiwear casing, make again Antiwear casing possess plasticity, according to demand any plastotype.Other compositions are identical with embodiment one with annexation.
Embodiment three: in conjunction with Fig. 3 explanation, leave the space between cylindrical casing 1 outer side wall of present embodiment and heat exchanging tube 3 madial walls, fill by refractory fiber paper 4 in described space.So design, indirectly improved the resistance to heat of Antiwear casing.Other compositions are identical with embodiment one or two with annexation.
During work: horn mouth 1-1 is communicated with the boiler waste gas inlet end.
Claims (3)
1. the Antiwear casing of a waste heat boiler heat exchanging tube, described Antiwear casing comprises cylindrical casing (1), it is characterized in that: described Antiwear casing also comprises annulus positioning plate (2), the inlet end of cylindrical casing (1) is provided with horn mouth (1-1), annulus positioning plate (2) be fixedly set on the outer side wall of cylindrical casing (1) and annulus positioning plate (2) perpendicular to the axis setting of cylindrical casing (1), the outlet side of cylindrical casing (1) is inserted in the heat exchanging tube (3) and the end face of annulus positioning plate (2) and the inlet end of heat exchanging tube (3) fits tightly setting.
2. the Antiwear casing of a kind of waste heat boiler heat exchanging tube according to claim 1, it is characterized in that: described Antiwear casing is porcelain bushing.
3. the Antiwear casing of a kind of waste heat boiler heat exchanging tube according to claim 1 and 2, it is characterized in that: leave the space between described cylindrical casing (1) outer side wall and heat exchanging tube (3) madial wall, fill by refractory fiber paper (4) in described space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386596 CN202708472U (en) | 2012-08-06 | 2012-08-06 | Anti-abrasion bushing of waste heat boiler heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386596 CN202708472U (en) | 2012-08-06 | 2012-08-06 | Anti-abrasion bushing of waste heat boiler heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708472U true CN202708472U (en) | 2013-01-30 |
Family
ID=47588777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386596 Expired - Fee Related CN202708472U (en) | 2012-08-06 | 2012-08-06 | Anti-abrasion bushing of waste heat boiler heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655359A (en) * | 2017-09-25 | 2018-02-02 | 广西信发铝电有限公司 | A kind of anti-corrosion method of coal gas heat exchanger |
-
2012
- 2012-08-06 CN CN 201220386596 patent/CN202708472U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655359A (en) * | 2017-09-25 | 2018-02-02 | 广西信发铝电有限公司 | A kind of anti-corrosion method of coal gas heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20200806 |