CN202361864U - Heat transfer tube - Google Patents
Heat transfer tube Download PDFInfo
- Publication number
- CN202361864U CN202361864U CN2011204896335U CN201120489633U CN202361864U CN 202361864 U CN202361864 U CN 202361864U CN 2011204896335 U CN2011204896335 U CN 2011204896335U CN 201120489633 U CN201120489633 U CN 201120489633U CN 202361864 U CN202361864 U CN 202361864U
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- fin
- heat
- plate body
- plate
- transfer pipe
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Abstract
The utility model discloses a heat transfer tube for an air preheater. The heat transfer tube comprises two same fin plates, wherein each fin plate comprises a plate body and a plurality of fins; the section of the plate body in the vertical direction is of an n shape; each fin is connected to the surface of the plate body; and open ends of the two fin plates are oppositely abutted to form a pipeline. According to the technical scheme, the fins are respectively arranged at two sides of a heat exchange plate, so that the heat transfer is strengthened. The directions of the fins at two sides of the heat exchange plate are mutually perpendicular and are consistent with the flowing direction of a medium in a corresponding channel, so that the resistance is reduced and dust is not easy to accumulate. Meanwhile, a fin plate obtained by adopting a casing method is made of caste heat-resistant alloy or aluminum alloy, and thus the domestic blank is filled. Compared with the traditional similar products, the heat transfer tube disclosed by the utility model has the great advantages of high temperature resistance, heat exchange efficiency and low possibility of accumulating dust.
Description
Technical field
The present technique scheme belongs to heat exchange device technical field, specifically is a kind of high temperature resistant heat-transfer pipe that is used for air preheater.
Background technology
The operation principle of air preheater is, carries out heat exchange to hot flue gas and cold air, and hot flue-gas temperature reduces, and reclaims heat, reaches discharging.The cold air temperature raises, and obtains heat, as combustion-supporting, and fuel saving, this just requires heat exchanger components to have good heat exchange effect.In addition because the temperature of hot flue gas is very high, the highest can be greater than 1000 ℃, in addition, hot flue gas itself has very strong corrosivity, the performance of heat exchanging device under hot conditions has high requirements like this.
Summary of the invention
For the physico of the hot flue gas of being satisfied with air preheater and the high request of heat exchange property heat exchanging device, the present technique scheme proposes a kind of new heat-transfer pipe, and concrete technical scheme is following:
A kind of heat-transfer pipe that is used for air preheater comprises two identical fin plates; Said fin plate comprises plate body and a plurality of fin, and the shape in the vertical direction cross section of plate body is " door " font, and each fin is connected the surface of plate body; The openend of two fin plates docks the formation pipeline in opposite directions.
Said fin plane is vertical with the plate body plane.Said fin is connected to the inner surface and the outer surface of plate body.The fin plane of inner surface that is connected plate body is consistent with the length direction of pipeline.The fin plane of outer surface that is connected plate body is vertical with the length direction of pipeline.
The two side of " door " font openend of said plate body all is provided with the bending edges outside pipeline; The bending edges of the correspondence of two fin plates is closely connected.Between the bending edges that the correspondence of two fin plates connects, be provided with sealing gasket, pass through bolted between two bending edges and the sealing gasket.
The material of said fin plate is chrome-nickel steel or aluminium alloy.Said fin plate is the overall structure of casting.
Present technique scheme heat exchanger plates both sides all have fin, augmentation of heat transfer.The direction of both sides fin is vertical each other, and is consistent with media flow direction in the respective channel, reduces resistance, is difficult for dust stratification.The fin plate material that adopts casting method to obtain simultaneously is casting heat-resistant steel alloy (heat resisting temperature can reach 1100 degree) or aluminium alloy (material is a Birmasil, has excellent decay resistance and in light weight), fills the domestic gaps.Compare traditional like product, from resistance to elevated temperatures, heat exchange efficiency be difficult for all having very big advantage on the dust stratification.
Description of drawings
Fig. 1 is the schematic perspective view of example structure;
Fig. 2 is the sketch map of embodiment;
Among the figure, fin plate 1, plate body 2, fin 3, bending edges 4, sealing gasket 5, bolt 6.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment present technique scheme is further specified as follows:
A kind of heat-transfer pipe that is used for air preheater comprises two identical fin plates; Said fin plate comprises plate body and a plurality of fin, and the shape in the vertical direction cross section of plate body is " door " font, and each fin is connected the surface of plate body; The openend of two fin plates docks the formation pipeline in opposite directions.
Said fin plane is vertical with the plate body plane.Said fin is connected to the inner surface and the outer surface of plate body.The fin plane of inner surface that is connected plate body is consistent with the length direction of pipeline.The fin plane of outer surface that is connected plate body is vertical with the length direction of pipeline.
The two side of " door " font openend of said plate body all is provided with the bending edges outside pipeline; The bending edges of the correspondence of two fin plates is closely connected.Between the bending edges that the correspondence of two fin plates connects, be provided with sealing gasket, pass through bolted between two bending edges and the sealing gasket.
The material of said fin plate is chrome-nickel steel or aluminium alloy.Said fin plate is the overall structure of casting.
Claims (9)
1. a heat-transfer pipe is characterized in that comprising two identical fin plates; Said fin plate comprises plate body and a plurality of fin, and the shape in the vertical direction cross section of plate body is " door " font, and each fin is connected the surface of plate body; The openend of two fin plates docks the formation pipeline in opposite directions.
2. heat-transfer pipe according to claim 1 is characterized in that said fin plane is vertical with the plate body plane.
3. heat-transfer pipe according to claim 1 and 2 is characterized in that said fin is connected to the inner surface and the outer surface of plate body.
4. heat-transfer pipe according to claim 3, the fin plane of inner surface that it is characterized in that being connected plate body is consistent with the length direction of pipeline.
5. heat-transfer pipe according to claim 3, the fin plane of outer surface that it is characterized in that being connected plate body is vertical with the length direction of pipeline.
6. heat-transfer pipe according to claim 1 is characterized in that the two side of " door " font openend of said plate body all is provided with the bending edges outside pipeline; The bending edges of the correspondence of two fin plates is closely connected.
7. heat-transfer pipe according to claim 1 is characterized in that between the bending edges that the correspondence of two fin plates connects, being provided with sealing gasket, passes through bolted between two bending edges and the sealing gasket.
8. heat-transfer pipe according to claim 1, the material that it is characterized in that said fin plate are chrome-nickel steel or aluminium alloy.
9. heat-transfer pipe according to claim 1 is characterized in that said fin plate is the overall structure of casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204896335U CN202361864U (en) | 2011-12-01 | 2011-12-01 | Heat transfer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204896335U CN202361864U (en) | 2011-12-01 | 2011-12-01 | Heat transfer tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202361864U true CN202361864U (en) | 2012-08-01 |
Family
ID=46573045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204896335U Expired - Fee Related CN202361864U (en) | 2011-12-01 | 2011-12-01 | Heat transfer tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202361864U (en) |
-
2011
- 2011-12-01 CN CN2011204896335U patent/CN202361864U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20120801 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |