CN203837009U - Air preheater - Google Patents
Air preheater Download PDFInfo
- Publication number
- CN203837009U CN203837009U CN201420276709.XU CN201420276709U CN203837009U CN 203837009 U CN203837009 U CN 203837009U CN 201420276709 U CN201420276709 U CN 201420276709U CN 203837009 U CN203837009 U CN 203837009U
- Authority
- CN
- China
- Prior art keywords
- heat
- air preheater
- helical fin
- pipes
- box
- 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
- 238000010521 absorption reaction Methods 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 230000005855 radiation Effects 0.000 claims description 10
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 1
- 239000003517 fume Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air Supply (AREA)
Abstract
The utility model provides an air preheater. The air preheater comprises a box; a separator is arranged in the box to divide the box into a heat dissipation region and a heat absorption region which are arranged up and down and communicated with each other; a plurality of heat pipes are mounted on mounting holes formed in the separator by inserting flanges; heat-absorbing spiral fins are connected to the surfaces of the heat pipes in the heat absorption region; heat-dissipating spiral fins are connected to the surfaces of the heat pipes in the heat dissipation region. The air preheater has the advantages that the cross flow of cold and hot fluids is effectively avoided, each heat pipe is an independent seal unit and mounted and sealed in the box by use of the flange, and also is convenient to demount, the number of the heat pipes or the heat transfer area ratio of the cold and hot sides of the heat pipes is adjusted so that the wall temperature of the heat pipes is kept above a dew point temperature and dew point corrosion can be effectively prevented, the fins in the heat absorption region are made of the stainless steel material and thus capable of preventing the corrosion of flue gas, the fins in the heat dissipation region are made of aluminum so that the cost is reduced and the heat exchange efficiency is also improved, and the spiral fins of the heat dissipation region are low in distribution density and also comply with the practical heat exchange condition of the heat exchange equipment such as the air preheater, and therefore, the manufacturing cost of the air preheater is reduced.
Description
Technical field
The utility model relates to heat transmission equipment technical field, is specifically related to a kind of air preheater.
Background technology
Heating furnace and steam boiler are the energy supply equipment of petroleum chemical industry and power industry, air preheater is the energy-conservation part of this equipment, and the heat-pipe air preheater using on petrochemical industry, Coal Chemical Industry tubular heater is at present mainly the heat exchange unit with single heat pipe composition.General heat pipe is installed in bobbin carriage, and wherein the evaporator section of heat pipe is installed in the fume side of air preheater, absorbs the heat of flue gas, makes the working media evaporation in heat pipe.The condensation segment of heat pipe is installed in the air side of air preheater, is used for exchanging the heat that in heat pipe, working media condensation discharges
Because heat-pipe air preheater is generally to manufacture and design by the Design cooling load of device, its thermic load is substantially also certain.But in running, owing to being subject to the impact of all factors, as the variation of device load, the variation of weather temperature, all can affect the load of heat-pipe air preheater, finally causes the variation of exhaust gas temperature.Exhaust gas temperature is too high, can reduce the thermal efficiency of heating furnace.Exhaust gas temperature is too low, can make heat pipe fume side be subject to the corrosion of acid dew point in low-temperature flue gas, causes fouling of heating surface and heat-pipe elements corrosion failure, and then makes the thermal efficiency of air preheater reduce even air preheater can not to use.
Utility model content
The utility model provides a kind of air preheater, does not mate the high fume temperature that causes or the problem of dew point corrosion to solve the heat exchange area of heat pipe that prior art exists and the Design cooling load of device.
The utility model comprises casing, dividing plate is set in casing, dividing plate will be separated into upper and lower two radiating areas that communicate with each other and heat absorption district in casing, solving the technical scheme that its technical problem adopts is that some heat pipes are interted and are installed on the installing hole on dividing plate by flange, heat pipe surface in heat absorption district connects heat absorption helical fin, and the heat pipe surface in radiating area connects heat radiation helical fin.
Above-mentioned heat absorption helical fin is stainless steel helical fin, and heat radiation helical fin is aluminum helical fin, and heat radiation helical fin distribution density is less than the distribution density of the helical fin that absorbs heat.
The fin hand of spiral on above-mentioned box house heat pipe surface is lined up regular inverse variation every some.
The utility model has effectively been avoided the crossfire of cold fluid and hot fluid, every heat pipe is all sealing unit independently, heat pipe is installed about in casing by flange, be convenient to dismounting, by adjusting the radical of heat pipe or the heat transfer area ratio of the cold and hot side of adjustment heat pipe, that heat pipe wall temperature is more than dew-point temperature, effectively prevent dew point corrosion, heat absorption district fin is the corrosion that stainless steel can prevent flue gas, radiating area fin is aluminum, reduce cost and also improved heat exchange efficiency simultaneously, the low actual heat exchange situation that also meets the heat transmission equipments such as air preheater of helical fin distribution density of radiating area, reduce the manufacturing cost of air preheater.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model dividing plate;
Fig. 3 is the structural representation of the utility model heat pipe.
1 casing, 2 dividing plates, 3 heat pipes, 21 installing holes, 31 heat absorption helical fins, 32 heat radiation helical fins, 4 radiating areas, 5 heat absorption districts, 6 flanges in figure.
Detailed description of the invention
A kind of air preheater, comprise casing 1, the interior dividing plate 2 that arranges of casing 1, dividing plate 2 will be separated into upper and lower two radiating areas that communicate with each other 4 and heat absorption district 5 in casing 1, some heat pipes 3 are interted and are installed on the installing hole 21 on dividing plate 2 by flange 6, heat pipe 3 surfaces in heat absorption district 5 connect heat absorption helical fin 31, heat pipe 3 surfaces in radiating area 4 connect heat radiation helical fin 32, heat absorption helical fin 31 is stainless steel helical fin, heat radiation helical fin 32 is aluminum helical fin, and heat radiation helical fin 32 distribution densities are less than the distribution density of the helical fin 31 that absorbs heat.The fin hand of spiral on box house heat pipe surface is lined up regular inverse variation every three, first three row's fin hand of spiral is left-handed, the adjacent fin hand of spiral is dextrorotation with it, and then become dextrorotation, can greatly strengthen like this flue gas and the air flow-disturbing effect in casing, improve heat exchange efficiency.
Claims (3)
1. an air preheater, comprise casing, dividing plate is set in casing, dividing plate will be separated into upper and lower two radiating areas that communicate with each other and heat absorption district in casing, it is characterized in that some heat pipes are interted and are installed on the installing hole on dividing plate by flange, heat pipe surface in heat absorption district connects heat absorption helical fin, and the heat pipe surface in radiating area connects heat radiation helical fin.
2. air preheater according to claim 1, the helical fin that it is characterized in that absorbing heat is stainless steel helical fin, and heat radiation helical fin is aluminum helical fin, and heat radiation helical fin distribution density is less than the distribution density of the helical fin that absorbs heat.
3. air preheater according to claim 1, the fin hand of spiral that it is characterized in that box house heat pipe surface is lined up regular inverse variation every some.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276709.XU CN203837009U (en) | 2014-05-21 | 2014-05-21 | Air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276709.XU CN203837009U (en) | 2014-05-21 | 2014-05-21 | Air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837009U true CN203837009U (en) | 2014-09-17 |
Family
ID=51514841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420276709.XU Expired - Fee Related CN203837009U (en) | 2014-05-21 | 2014-05-21 | Air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837009U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864754A (en) * | 2015-06-03 | 2015-08-26 | 韦华全 | Heat pipe type heat energy recovery device |
| CN109269331A (en) * | 2018-10-30 | 2019-01-25 | 江苏龙净节能科技有限公司 | A kind of two-period form heat pipe rotational flow heat exchanger |
| CN111457767A (en) * | 2020-04-30 | 2020-07-28 | 国家能源菏泽发电有限公司 | Heat pipe heat exchanger capable of automatically adjusting smoke exhaust temperature |
-
2014
- 2014-05-21 CN CN201420276709.XU patent/CN203837009U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864754A (en) * | 2015-06-03 | 2015-08-26 | 韦华全 | Heat pipe type heat energy recovery device |
| CN109269331A (en) * | 2018-10-30 | 2019-01-25 | 江苏龙净节能科技有限公司 | A kind of two-period form heat pipe rotational flow heat exchanger |
| CN111457767A (en) * | 2020-04-30 | 2020-07-28 | 国家能源菏泽发电有限公司 | Heat pipe heat exchanger capable of automatically adjusting smoke exhaust temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 253000 Road south of the middle section of Qi Bei Road, Leling City, Dezhou, Shandong Patentee after: Yueling City Hua Yuan energy-saving equipment Co., Ltd Address before: 253000 Xue Lou village, Yunhong Street office, Leling, Shandong Patentee before: Yueling City Hua Yuan energy-saving equipment Co., Ltd |
|
| CP02 | Change in the address of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20170521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |