CN201897406U - Smoke-resistant low-temperature-corrosion-resistant cambered plate double-pipe heat exchanger - Google Patents
Smoke-resistant low-temperature-corrosion-resistant cambered plate double-pipe heat exchanger Download PDFInfo
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- CN201897406U CN201897406U CN201020607594XU CN201020607594U CN201897406U CN 201897406 U CN201897406 U CN 201897406U CN 201020607594X U CN201020607594X U CN 201020607594XU CN 201020607594 U CN201020607594 U CN 201020607594U CN 201897406 U CN201897406 U CN 201897406U
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Abstract
The utility model relates to a smoke and low temperature corrosion resistant cambered plate double-pipe heat exchanger. The heat exchanger is characterized in that a shell is a cylindrical shell with a closed end and the other end provided with an opening, wherein a smoke inlet is formed at the upper part of the shell, and a smoke outlet is formed at the lower part of the shell, and an intermediate tube plate is arranged on the opening at one end of the shell; an opening end of a sleeve pipe is fixed on each through hole of the intermediate tube plate, and the other end of each horizontal sleeve pipe is closed and placed on a supporting pore plate in the shell; a water pipe with diameter smaller than that of the sleeve pipes is arranged in each sleeve pipe, wherein one end of each water pipe is adjacent to the closed end of each sleeve pipe, and the other end of each water pipe is fixed on a through hole of an end tube plate corresponding to the water pipe; the outer peripheries of both the end tube plate and the intermediate tube plate are connected with an intermediate shell, and a water outlet is formed at the lower part of the intermediate shell; and the other side of the end tube plate is connected with an opening on one side of a channel box, and a water inlet is formed at the upper part of the channel box. Since cold water is not in direct contact with the sleeve pipe, the problem of low-temperature corrosion of the sleeve pipe is solved, and the service life of the sleeve pipe and the whole heat exchanger is prolonged; and the heat exchanger has the advantages of high heat exchange efficiency, simple structure and low equipment cost.
Description
Technical field: the utility model relates to a kind of heat exchanger, particularly finned tube exchanger.
Background technology: at present, economizer is widely used in the energy-saving equipment of industries such as oil, chemical industry, metallurgy, the economizer structure is identical substantially, mainly be by the casing that has structural steel frame and side plate to constitute, two parallel vertical tube sheets are arranged in casing, the wave-fin pipe is zigzag and back and forth passes tube sheet, and by its support.Casing has two Inlet and outlet water collecting box pipes to link to each other with the wave-fin pipe outward, constitutes the passage of water.When flue gas enters and when casing is discharged down from casing, by the wave-fin pipe heat of flue gas is passed to water in the coiled pipe, so water is heated.The above-mentioned wave-fin Guan Yinshui side coefficient of heat transfer is very big, the coefficient of heat transfer than fume side is much bigger, therefore the tube wall temperature of wave-fin pipe is near water side temperature, coolant-temperature gage in the wave-fin pipe is lower, therefore the wave-fin pipe is easy to generate the low temperature acid dew piont corrosion, and this has seriously influenced the service life of equipment and the normal operation of system.Therefore people have taked a lot of methods: the ND steel, the stainless steel that adopt more anti-low temperature sulfur corrosion if any the people, but the ND steel is anti-, the stainless steel corrosion resistance is limited, corrosion resistance is about three times of ordinary carbon steel, can only delay corrosion, can not prevent cold end corrosion completely, owing to the low-temperature zone dewfall causes incrustation, exhaust gases passes is blocked simultaneously, the system that influences normally moves.
Summary of the invention: the purpose of this utility model is to provide a kind of heat exchange efficiency height, long service life, simple in structure, anti-flue gas cold end corrosion cambered plate bushing type economizer that equipment cost is low.The utility model mainly is that finned tube is designed to the bushing type finned tube.The utility model mainly includes housing, tube sheet, sleeve pipe, water pipe, middle casing, bobbin carriage and deflection plate.Wherein, housing is the barrel-type casing that the end sealing other end is established opening, and its top is provided with gas approach, and the bottom is provided with exhanst gas outlet.On an end opening of above-mentioned housing, establish this opening is covered also coupled sagging plate, all be fixed with the openend of a sleeve pipe on each through hole of this sagging plate, the sleeve pipe other end sealing of this level, and place on the interior support of the housing orifice plate.Preferably sleeve outer wall is provided with fin, and fin employing " H " type fin, to prevent dust stratification.Above-mentioned each sleeve pipe also vertically passes through hole corresponding with it on the deflection plate, and this is interrupted its periphery of some deflection plates that is provided with and links to each other with inner walls.In above-mentioned sleeve pipe, respectively establish the water pipe of a diameter less than casing diameter, the nearly sleeve closure end of this water pipe one termination, the other end is fixed on the end tube sheet through hole corresponding with it, and this end tube sheet all links to each other with middle casing with the sagging plate neighboring, and the bottom of this middle casing is provided with delivery port.The opposite side of above-mentioned end tube sheet links to each other with bobbin carriage one side opening, and this bobbin carriage top is provided with the import of water.Preferably bobbin carriage, middle casing adopt to live with the end tube sheet and are connected, so that tube bank is keeped in repair and changed.
The course of work of the present utility model is as follows: flue gas enters from the gas approach of housing, and flue gas wave in housing is advanced under the guiding of deflection plate, discharges from the housing exhanst gas outlet through after the multipaths.The outside of sleeve fin contacts with flue gas, absorbs the heat of flue gas and it is delivered in the sleeve pipe.Cold water is introduced into bobbin carriage, enters the water pipe from the end tube sheet, and flows to its other end along water pipe, in flow process, absorbs the heat of cover tube fluid, and water is heated.When water flows to the water pipe other end, just enter the interlayer of water pipe and sleeve pipe from water pipe, absorb flue gas again and be delivered to heat on the sleeve pipe, water is continued heating.When water flow to ferrule openings, heated water entered middle casing, and the delivery port below it is discharged then.
The utility model compared with prior art has following advantage:
1, cold water of the present utility model does not directly contact with sleeve pipe, has improved the tube wall temperature of sleeve pipe, has solved the cold end corrosion problem of sleeve pipe, the service life of having improved sleeve pipe and whole heat exchanger.
2, be located at the interior segmental baffle of housing, can make flue gas pass through the multipaths heat exchange, improve heat exchange efficiency.
3, housing adopts circular configuration, is fit to the waste heat recovery of band elevated pressures gas.
4, device structure is simple, difficulty of processing is little, heat exchange efficiency height, low cost of manufacture.
Description of drawings:
Fig. 1 is that master of the present utility model looks the section simplified schematic diagram.
Fig. 2 is the local simplified schematic diagram of amplifying of the utility model.
The specific embodiment: in the simplified schematic diagram of anti-flue gas cold end corrosion cambered plate double pipe heat exchanger illustrated in figures 1 and 2, housing 1 is the cylindrical shell that the end sealing other end is established opening, and its top is provided with gas approach 2, and the bottom is provided with exhanst gas outlet 3.On an end opening of above-mentioned housing, establish sagging plate 4, all be fixed with the openend of a sleeve pipe 5 on each through hole of this sagging plate, the sleeve pipe other end sealing of this level, and place on the interior support of the housing orifice plate 6.Above-mentioned sleeve outer wall is provided with " H " type fin 7.Above-mentioned each sleeve pipe also vertically passes through hole corresponding with it on the segmental baffle 8, and this is interrupted linking to each other with inner walls as if two its arcuate perimeter of deflection plate of being provided with.In above-mentioned sleeve pipe, respectively establish the water pipe 9 of a diameter less than casing diameter, the nearly sleeve closure end of this water pipe one termination, the other end is fixed on end tube sheet 10 through hole corresponding with it, and this end tube sheet all links to each other with middle casing 11 with the sagging plate neighboring, and the bottom of this middle casing is provided with delivery port 12.The opposite side of above-mentioned end tube sheet links to each other with bobbin carriage 13 1 side openings, and this bobbin carriage top is provided with the import 14 of water.Above-mentioned bobbin carriage, middle casing are lived with the end tube sheet and are connected.
Claims (6)
1. anti-flue gas cold end corrosion cambered plate double pipe heat exchanger, it is characterized in that: housing is the barrel-type casing that the end sealing other end is established opening, its top is provided with gas approach, the bottom is provided with exhanst gas outlet, on an end opening of above-mentioned housing, establish sagging plate, all be fixed with the openend of a sleeve pipe on each through hole of this sagging plate, the sleeve pipe other end sealing of this level, and place on the interior support of the housing orifice plate, in above-mentioned sleeve pipe, respectively establish the water pipe of a diameter less than casing diameter, the nearly sleeve closure end of this water pipe one termination, the other end is fixed on the end tube sheet through hole corresponding with it, and this end tube sheet all links to each other with middle casing with the sagging plate neighboring, and the bottom of this middle casing is provided with delivery port, the opposite side of above-mentioned end tube sheet links to each other with bobbin carriage one side opening, and this bobbin carriage top is provided with the import of water.
2. anti-flue gas cold end corrosion cambered plate double pipe heat exchanger according to claim 1, it is characterized in that: sleeve outer wall is provided with fin.
3. anti-flue gas cold end corrosion cambered plate double pipe heat exchanger according to claim 1 and 2, it is characterized in that: above-mentioned each sleeve pipe also vertically passes through hole corresponding with it on the segmental baffle, and this is interrupted its periphery of deflection plate that is provided with and links to each other with inner walls.
4. anti-flue gas cold end corrosion cambered plate double pipe heat exchanger according to claim 3 is characterized in that: bobbin carriage, middle casing adopt to live with the end tube sheet and are connected.
5. anti-flue gas cold end corrosion cambered plate double pipe heat exchanger according to claim 4, it is characterized in that: housing is a cylindrical shell.
6. anti-flue gas cold end corrosion cambered plate double pipe heat exchanger according to claim 2 is characterized in that: fin adopts H type fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020607594XU CN201897406U (en) | 2010-11-11 | 2010-11-11 | Smoke-resistant low-temperature-corrosion-resistant cambered plate double-pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020607594XU CN201897406U (en) | 2010-11-11 | 2010-11-11 | Smoke-resistant low-temperature-corrosion-resistant cambered plate double-pipe heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897406U true CN201897406U (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020607594XU Expired - Fee Related CN201897406U (en) | 2010-11-11 | 2010-11-11 | Smoke-resistant low-temperature-corrosion-resistant cambered plate double-pipe heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN201897406U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567288A (en) * | 2019-08-16 | 2019-12-13 | 新疆金禾山能源科技有限公司 | Condensation heat exchanger for flue gas dehumidification and whitening |
| CN111879151A (en) * | 2020-08-05 | 2020-11-03 | 哈尔滨锅炉厂有限责任公司 | Sleeve type heat exchanger |
| CN113218214A (en) * | 2021-05-11 | 2021-08-06 | 徐振江 | Shell and tube heat exchanger |
-
2010
- 2010-11-11 CN CN201020607594XU patent/CN201897406U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567288A (en) * | 2019-08-16 | 2019-12-13 | 新疆金禾山能源科技有限公司 | Condensation heat exchanger for flue gas dehumidification and whitening |
| CN110567288B (en) * | 2019-08-16 | 2020-11-20 | 新疆金禾山能源科技有限公司 | Condensation heat exchanger for flue gas dehumidification and whitening |
| CN111879151A (en) * | 2020-08-05 | 2020-11-03 | 哈尔滨锅炉厂有限责任公司 | Sleeve type heat exchanger |
| CN113218214A (en) * | 2021-05-11 | 2021-08-06 | 徐振江 | Shell and tube 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: 20110713 Termination date: 20131111 |