CN201302410Y - Longitudinal finned oblate tube heat exchanger for high-temperature, corrosive dusty gas - Google Patents
Longitudinal finned oblate tube heat exchanger for high-temperature, corrosive dusty gas Download PDFInfo
- Publication number
- CN201302410Y CN201302410Y CNU2008201534241U CN200820153424U CN201302410Y CN 201302410 Y CN201302410 Y CN 201302410Y CN U2008201534241 U CNU2008201534241 U CN U2008201534241U CN 200820153424 U CN200820153424 U CN 200820153424U CN 201302410 Y CN201302410 Y CN 201302410Y
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- heat exchanger
- oblate tube
- oblate
- tube
- heat
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Abstract
The utility model relates to a longitudinal finned oblate tube heat exchanger which is formed by welding an oblate tube (1) and a group of rectangular fins (2), wherein, the oblate tube (1) takes the shape of a racecourse with two circular-arc-shaped ends and a linear middle part, and the fins (2) are arranged around the straight sections of the oblate tube (1) and distributed in parallel in the longitudinal direction of the heat exchanger. The utility model enables high-temperature, corrosive gas to flow along the axial direction of the oblate tube and along the direction of the arrangement of the fins; an axial hollow space is formed in a flow channel which is parallel with the path by which a heat transferring medium flows, thereby strengthening heat transmission, reducing smoke resistance, increasing sectional flow area, reducing the risk of dust accumulation and scale formation, and ensuring convenient maintenance; the adoption of the oblate tube made of steel-aluminum composite boards not only contributes to improvement of corrosion resistance but also avoids the use of expensive materials, thereby reducing cost; and moreover, in the circumstances, such as a limited temperature region or a constant temperature environment, the longitudinal finned elliptical oblate tube heat exchanger is more effective in transferring heat and saving energy than a conventional heat exchanger.
Description
Technical field
The utility model belongs to high temperature corrosion ash-laden gas heat recovery technology field, particularly relates to the heat-exchanger rig that a kind of flue gas waste heat recovery utilizes.
Background technology
The exploitation of new type high efficient heat exchanger and manufacturing technology are the focuses of field of energy utilization research always, and it is directly connected to the energy utilization rate of industries such as chemical industry, electric power, petrochemical industry.Recently Kai Fa various reinforcement techniques relate to two aspects nothing but: in the pipe or outside the pipe.Usually adopt the method that changes the tube wall situation or add various inserts in the pipe, the outer then methods that change the baffling mode that adopt of pipe more.But they can only make in the pipe or outside the pipe and unilaterally be strengthened, and the present situation of commercial Application is unsatisfactory.
At present at the heat exchanger of the corrosivity dust-laden high-temperature gas of industries such as chemical industry, electric power, petrochemical industry, generally use shell and tube exchanger, in its heat exchanger tube with water as heat transfer medium, for strengthening the heat transfer of gas side, usually install fin additional in heat exchanger tube tube bank outside, adopt the mistake mode of putting of arranging, the shortcoming of this smoke heat replacing device is that the gas collateral resistance is bigger, be difficult to effective to the dusty gas heat exchange, dust stratification stops up easily, and it is also difficult that deashing blows ash, influences the heat exchange effect strongly, and structure is not compact, causes equipment cost and operating cost all than higher; In addition circular tubes that adopt more, because of being subjected to the manufacturing process condition restriction, general wall thickness is bigger, and the unit heat exchange area is more with material like this, the equipment price height, thermal resistance is also bigger simultaneously.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of axial fin flat pipe heat exchanger of high temperature corrosion dusty gas, to solve cost height in the prior art, the defective that heat exchange efficiency is low.
A kind of axial fin flat pipe heat exchanger is welded by flat tube (1) and one group of rectangular fin (2), and flat tube (1) is the runway shape of straight line in the middle of two circular arc, and fin (2) distributes around flat tube (1) straight section and along the parallel longitudinal of heat exchanger.
The material of described flat tube (1) is the steel aluminium composite material, and the water side is the steel material, and the gas side is an aluminum cladding.
Beneficial effect
The utility model make high temperature corrosion gas along flat tube axial direction and fin in the same way direction flow, flow channel be axially to lead directly to, and parallel with the flow path of heat transferring medium, augmentation of heat transfer reduces flue gas resistance, increases the section circulation area, be difficult for ash deposit and slag buildup, easy to maintenance; Adopt steel-aluminum composite plate material flat tube, not only improved corrosion resistance, avoided using the material of high price simultaneously, reduced cost, in the finite temperature zone, identical temperature environment, the oval flat pipe heat exchanger of longitudinal fin obviously strengthens than general conventional traditional heat exchanger heat exchange effect, and energy-saving effect significantly improves.
Description of drawings
Fig. 1 is a longitudinal fin flat tube heat exchange element structural representation;
Fig. 2 is a longitudinal fin flat tube heat exchange element transverse cross-sectional view.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
A kind of axial fin flat pipe heat exchanger is welded by flat tube 1 and one group of rectangular fin 2, and flat tube 1 is the runway shape of straight line in the middle of two circular arc, and fin 2 distributes around flat tube 1 straight section and along the parallel longitudinal of heat exchanger; The material of described flat tube is the steel aluminium composite material, and the water side is the steel material, and the gas side is an aluminum cladding.
Claims (2)
1. axial fin flat pipe heat exchanger is characterized in that: be welded by flat tube (1) and one group of rectangular fin (2), flat tube (1) is the runway shape of straight line in the middle of the circular arc of two, and fin (2) distributes around flat tube (1) straight section and along the parallel longitudinal of heat exchanger.
2. axial fin flat pipe heat exchanger as claimed in claim 1 is characterized in that: the material of described flat tube (1) is the steel aluminium composite material, and the water side is the steel material, and the gas side is an aluminum cladding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201534241U CN201302410Y (en) | 2008-09-24 | 2008-09-24 | Longitudinal finned oblate tube heat exchanger for high-temperature, corrosive dusty gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201534241U CN201302410Y (en) | 2008-09-24 | 2008-09-24 | Longitudinal finned oblate tube heat exchanger for high-temperature, corrosive dusty gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201302410Y true CN201302410Y (en) | 2009-09-02 |
Family
ID=41086036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201534241U Expired - Fee Related CN201302410Y (en) | 2008-09-24 | 2008-09-24 | Longitudinal finned oblate tube heat exchanger for high-temperature, corrosive dusty gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201302410Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925698A (en) * | 2014-04-30 | 2014-07-16 | 哈尔滨红光锅炉总厂有限责任公司 | High-capacity fuel gas condensing hot water boiler adopting compound water circulation |
| CN110595250A (en) * | 2018-12-29 | 2019-12-20 | 杭州三花微通道换热器有限公司 | Heat exchanger |
-
2008
- 2008-09-24 CN CNU2008201534241U patent/CN201302410Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925698A (en) * | 2014-04-30 | 2014-07-16 | 哈尔滨红光锅炉总厂有限责任公司 | High-capacity fuel gas condensing hot water boiler adopting compound water circulation |
| CN110595250A (en) * | 2018-12-29 | 2019-12-20 | 杭州三花微通道换热器有限公司 | Heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20120924 |