CN201593801U - Air preheater capable of cooling horizontally flowing flue gas - Google Patents
Air preheater capable of cooling horizontally flowing flue gas Download PDFInfo
- Publication number
- CN201593801U CN201593801U CN2010200101404U CN201020010140U CN201593801U CN 201593801 U CN201593801 U CN 201593801U CN 2010200101404 U CN2010200101404 U CN 2010200101404U CN 201020010140 U CN201020010140 U CN 201020010140U CN 201593801 U CN201593801 U CN 201593801U
- Authority
- CN
- China
- Prior art keywords
- pipe
- heat
- tube
- air
- flue gas
- 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
Images
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)
Abstract
The utility model relates to an air preheater capable of cooling horizontally flowing flue gas. A high-temperature turbolator heat exchanger, a heat pipe air preheater and a low-temperature anti-corrosion heat taking device are mainly arranged in sequence in the heat exchange process between a high-temperature flue gas inlet to a low-temperature flue gas outlet; air transition sections are arranged among the components; the high-temperature turbolator heat exchanger mainly comprises a turbolator pipe bundle, a pipe plate, a housing plate, a flue gas inlet pipe and an air outlet pipe; the heat pipe air preheater mainly comprises a heat pipe bundle, a pipe plate, an intermediate partition plate, a cover plate and a housing plate; and the low-temperature anti-corrosion heat taking device mainly comprises an enamel pipe bundle, a pipe plate, a housing plate, a flue gas outlet pipe and an air inlet pipe. The air preheater gives respective advantages of each heat exchanger for step-by-step heat exchange and has the advantages of high heat efficiency, low cost, safety, reliability and long service life when used under the condition that the flue gas needs to change from a rather high temperature to a rather low temperature.
Description
Technical field: the utility model relates to a kind of air preheater.
Background technology: at present, heat-pipe air preheater is widely used in the reheating furnace energy-saving equipment of industries such as oil, chemical industry, metallurgy, has vertical and horizontal two kinds, is applicable to that generally tube wall temperature is middle worst cold case.But contain sulfur oxide and moisture in the flue gas medium, when flue-gas temperature was lower than acid dew-point temperature, flue gas will cause the corrosion of sulfide opposite heat tube in the flue gas at the heat pipe surface sweating.The flue gas medium temperature of many operating modes is than higher simultaneously, and for preventing the too high booster that takes place of heat pipe Yin Wendu, people once adopted high-temperature heat pipe, but its working media freezing point is higher, when temperature is low, easily cause internal working medium to be detained, perhaps heat-transfer working medium is solidified, and influence heat transfer property at cold junction; People also once managed to reduce the heat pipe wall temperature and promptly reduced the fume side heat exchange area, but reached the volume that identical exchange capability of heat just needs increase equipment, improved equipment cost.
Summary of the invention: the purpose of this utility model is to provide the flue gas of a kind of heat transfer efficiency height, long service life, bottom horizontal flow sheet that cost is low to reduce to the air preheater of low temperature from high temperature.
The utility model mainly is to set gradually high temperature turbolator heat exchanger, heat-pipe air preheater, low-temperature corrosion protection heat collector in the high-temperature flue gas import to the heat transfer process of low-temperature flue gas outlet, and establishes the air transition section between them.High temperature turbolator heat exchanger mainly includes turbolator tube bank, tube sheet, Shell Plate, flue gas inlet tube and air outlet slit pipe.Wherein, the turbolator pipe is a heat exchanger tube of establishing the turbolator augmentation of heat transfer in a kind of, is preferably in the fin that the turbolator pipe is provided with the expansion heat exchange area outward, as helical fin, fin, fin, H type fin or studded tube etc.Above-mentioned some turbolator pipes are formed the turbolator tube bank, and air is walked in the pipe, and flue gas is walked outside the pipe.This turbolator tube bank two ends up and down places two interior and sealed attachment of through hole that the rectangle tube sheet is corresponding with it up and down respectively, makes the turbolator tube bank be vertical state.Be provided with two relative vertical Shell Plates in the both sides of above-mentioned two tube sheets, the square tube that itself and two tube sheets constitute is the flow-disturbing seed cell, and this flow-disturbing seed cell one side opening links to each other with flue gas inlet tube one end, and the opposite side opening links to each other with the heat-pipe air preheater smoke chamber; This flow-disturbing seed cell lower perforated plate links to each other with air outlet slit Guan Yiduan, and upper perforated plate links to each other with the bobbin carriage under shed of air transition section A, and another opening of bobbin carriage of this air transition section A links to each other with the heat-pipe air preheater air chamber.
Heat-pipe air preheater mainly is made up of heat pipe bundle, tube sheet, central dividing plate, cover plate and Shell Plate.Wherein, heat pipe is the vacuum tube of interior dress heat-transfer working medium, and it can be light pipe or the finned tube of expanding heat transfer area, studded tube etc.The intrafascicular portion of heat pipe that above-mentioned some heat pipes are formed is fixed on the corresponding with it through hole of horizontal central dividing plate, this central dividing plate one end links to each other with the tube sheet that above-mentioned flow-disturbing seed cell is positioned at air transition section A one side, the two ends up and down of above-mentioned heat pipe bundle place respectively up and down in the corresponding with it through hole of two rectangle tube sheets, make the heat pipe bundle be vertical state.One of above-mentioned two tube sheet link to each other with the tube sheet that above-mentioned turbolator is positioned at air outlet slit assembly one side, and another piece links to each other with the horizontal boxboard of air transition section A.Be respectively equipped with at the two ends up and down of above-mentioned two tube sheets and link to each other with last lower perforated plate and heat pipe is covered in cover plate up and down in it, preferably upper cover plate flexibly connects with upper perforated plate, during with convenient heat pipe failure, can open the upper cover plate replacing.Be provided with two vertical Shell Plates relative and that link to each other with flow-disturbing seed cell two Shell Plates in the both sides of above-mentioned two tube sheets and central dividing plate, itself and two tube sheets and central dividing plate constitute two square tubes, last square tube is heat pipe air chamber (condensation segment), and following square tube is heat pipe smoke chamber (evaporator section).Above-mentioned heat pipe air chamber one side opening links to each other with the tube case side opening of air transition section A, and the opposite side opening links to each other with the tube case side opening of air transition section B; Above-mentioned heat pipe smoke chamber one side opening links to each other with a side opening of flow-disturbing seed cell, and the opposite side opening links to each other with low-temperature corrosion protection heat collector side opening.
The low-temperature corrosion protection heat collector mainly includes enamel tube bank, tube sheet, Shell Plate, smoke outlet tube and air intlet pipe.Wherein, enamel pipe is the metal tube that the outside has enamel layer, and some above-mentioned enamel pipes are formed the enamel tube bank, and air is walked in the pipe, and flue gas is walked outside the pipe.This enamel tube bank two ends up and down places up and down in the corresponding with it through hole of two rectangle tube sheets respectively and is tightly connected, and makes the enamel tube bank be vertical state, and the same end of this two tube sheet links to each other with two tube sheets of heat pipe smoke chamber respectively.Be provided with two vertical Shell Plates relative and that link to each other with flow-disturbing seed cell two Shell Plates in the both sides of above-mentioned two tube sheets, the square tube that itself and two tube sheets constitute is Heat Room, and the one side opening links to each other with the heat pipe smoke chamber, and the opposite side opening links to each other with smoke outlet tube one end; This Heat Room upper perforated plate links to each other with the bobbin carriage under shed of air transition section B, and lower perforated plate links to each other with air intlet Guan Yiduan.
When cold air enters in the enamel pipe of low-temperature corrosion protection heat collector by air intlet, just the flue gas that comes out with the heat-pipe air preheater smoke chamber carries out exchange heat, the air of rising temperature carries out exchange heat by the vapour phase heat-transfer working medium that air transition section B enters in heat-pipe air preheater air chamber and the heat pipe condenser section, make the condensation of vapour phase working medium become fluid and flow to evaporator section, after coming out from the heat-pipe air preheater air chamber, air after the process heat exchange heats up enters in the tube bank of high temperature turbolator heat exchanger turbolator by air transition section A, carry out exchange heat with the high-temperature flue gas that enters the flow-disturbing seed cell from flue gas inlet tube again, air is discharged from the air outlet slit pipe after absorbing heat again; And high-temperature flue gas enters the smoke chamber of heat-pipe air preheater after cooling, liquid phase heat-transfer working medium in itself and the heat pipe beam evaporation section carries out exchange heat, make its evaporation become gas the heat-transfer working medium in the heat transferred smoke chamber heat pipe, flue gas after the cooling enters the low-temperature corrosion protection heat collector, after carrying out heat exchange with cold air, discharge from exhanst gas outlet.
The utility model compared with prior art has following advantage:
1, the high temperature turbolator heat exchanger that the utility model sets gradually, heat-pipe air preheater and low-temperature corrosion protection heat collector, bring into play the advantage of various heat exchangers separately, heat exchange step by step, the utility model can be used than higher being converted under two kinds of lower limiting conditions in flue-gas temperature, because high-temperature flue gas is lowered the temperature through high temperature turbolator heat exchanger before entering heat exchange of heat pipe, reduced the tube wall temperature of heat pipe tube bank evaporator section, so just, greatly reduce the possibility of heat pipe tube bank booster in the heat exchange of heat pipe, and be provided with the low-temperature corrosion protection heat collector in the low-temperature flue gas side, its heat exchange pipe external surface is difficult for producing acid dew piont corrosion with enamel layer.
2, simple in structure, difficulty of processing is little, thermal efficiency height, cost are low.
3, safe and reliable, long service life.
4, reduce the consumption of cold end corrosion material, reduced cost.
5, reduced exhaust gas temperature, energy-conserving and environment-protective.
6, the heat exchanger tube of low-temperature corrosion protection heat collector is very smooth, very easily removes dust stratification with slag-blowing equipmemt.
Description of drawings:
Fig. 1 is that simplified schematic diagram is cutd open by the master of the present utility model office of looking.
The specific embodiment: the master who reduces to the air preheater of low temperature at the flue gas of bottom horizontal flow sheet shown in Figure 1 from high temperature looks the section simplified schematic diagram, the turbolator pipe 2 of high temperature turbolator heat exchanger 1 has turbolator that the heat exchanger tube of fin is arranged outward in being, above-mentioned some turbolator pipes are formed the turbolator tube bank, air is walked in the pipe, and flue gas is walked outside the pipe.This turbolator tube bank two ends up and down places two interior and sealed attachment of through hole that rectangle tube sheet 3 is corresponding with it up and down respectively.Be provided with two relative vertical Shell Plates 4 in the both sides of above-mentioned two tube sheets, the square tube that itself and two tube sheets constitute is the flow-disturbing seed cell, and this flow-disturbing seed cell one side opening links to each other with flue gas inlet tube 5 one ends, and the opposite side opening links to each other with heat-pipe air preheater 6 smoke chambers; This flow-disturbing seed cell lower perforated plate links to each other with air outlet slit pipe 7 one ends, is provided with the expansion joint that arc constitutes in addition in the end of air outlet slit side pipe plate.Upper perforated plate links to each other with bobbin carriage 8 under sheds of air transition section A, and another opening of bobbin carriage of this air transition section A is the side opening that links to each other with the heat-pipe air preheater air chamber.The heat pipe 9 of heat-pipe air preheater is the vacuum tube of dress heat-transfer working medium in the peripheral hardware fin, the intrafascicular portion of heat pipe that above-mentioned some heat pipes are formed is fixed on the corresponding with it through hole of central dividing plate 10, and the two ends up and down of this heat pipe bundle place respectively up and down in the corresponding with it through hole of two rectangle tube sheets 11.Be respectively equipped with at the two ends up and down of above-mentioned two tube sheets and link to each other with last lower perforated plate and heat pipe is covered in cover plate up and down 12 in it, and upper cover plate and upper perforated plate flexibly connect.Be provided with relative and parallel with flow-disturbing seed cell two Shell Plates two vertical Shell Plates 13 in the both sides of above-mentioned two tube sheets and central dividing plate, itself and two tube sheets and central dividing plate constitute two square tubes, last square tube is the heat pipe air chamber, following square tube is the heat pipe smoke chamber, this heat pipe air chamber one side opening links to each other with the tube case side opening of air transition section A, and the opposite side opening links to each other with bobbin carriage 14 side openings of air transition section B; This heat pipe smoke chamber one side opening links to each other with a side opening of flow-disturbing seed cell, and the opposite side opening links to each other with low-temperature corrosion protection heat collector 15 side openings.The enamel pipe 16 of low-temperature corrosion protection heat collector is the metal tube of outside with enamel layer, and some above-mentioned enamel pipes are formed the enamel tube bank, and air is walked in the pipe, and flue gas is walked outside the pipe.This enamel tube bank two ends up and down places up and down in the corresponding with it through hole of two rectangle tube sheets 17 respectively and is tightly connected.Be provided with the expansion joint that arc constitutes in addition in the end of air inlet side tube sheet.Be provided with relative and parallel with flow-disturbing seed cell two Shell Plates two vertical Shell Plates 18 in the both sides of above-mentioned two tube sheets, the square tube that itself and two tube sheets constitute is Heat Room, the one side opening links to each other with the heat pipe smoke chamber, and the opposite side opening links to each other with smoke outlet tube 19 1 ends; This Heat Room upper perforated plate links to each other with the bobbin carriage under shed of air transition section B, and lower perforated plate links to each other with air intlet pipe 20 1 ends.
Claims (6)
1. the flue gas of a bottom horizontal flow sheet is reduced to the air preheater of low temperature from high temperature, it is characterized in that: the turbolator pipe of high temperature turbolator heat exchanger is established the heat exchanger tube of turbolator in being, the turbolator tube bank of this turbolator pipe composition two ends up and down places two interior and sealed attachment of through hole that the rectangle tube sheet is corresponding with it up and down respectively, be provided with two relative vertical Shell Plates in the both sides of above-mentioned two tube sheets, it links to each other with flue gas inlet tube one end with flow-disturbing seed cell one side opening that two tube sheets constitute, the opposite side opening links to each other with the heat-pipe air preheater smoke chamber, this flow-disturbing seed cell lower perforated plate links to each other with air outlet slit Guan Yiduan, and upper perforated plate links to each other with the bobbin carriage under shed of air transition section A; The heat pipe of heat-pipe air preheater is the vacuum tube of interior dress heat-transfer working medium, the intrafascicular portion of heat pipe that this heat pipe is formed is fixed on the corresponding with it through hole of central dividing plate, this central dividing plate one end links to each other with the tube sheet that above-mentioned flow-disturbing seed cell is positioned at air transition section A one side, the two ends up and down of this heat pipe bundle place respectively up and down in the corresponding with it through hole of two rectangle tube sheets, one of above-mentioned two tube sheet link to each other with the tube sheet that above-mentioned turbolator is positioned at air outlet slit pipe one side, another piece links to each other with the horizontal boxboard of air transition section A, be respectively equipped with at the two ends up and down of above-mentioned two tube sheets and link to each other with last lower perforated plate and heat pipe is covered in cover plate up and down in it, be provided with two vertical Shell Plates relative and that link to each other with flow-disturbing seed cell two Shell Plates in the both sides of above-mentioned two tube sheets and central dividing plate, itself and two tube sheets and central dividing plate constitute heat pipe air chamber and heat pipe smoke chamber, this heat pipe air chamber one side opening links to each other with the tube case side opening of air transition section A, the opposite side opening links to each other with the tube case side opening of air transition section B, this heat pipe smoke chamber one side opening links to each other with a side opening of flow-disturbing seed cell, and the opposite side opening links to each other with low-temperature corrosion protection heat collector side opening; The enamel pipe of low-temperature corrosion protection heat collector is the metal tube that the outside has enamel layer, the enamel tube bank that this enamel pipe is formed two ends up and down places up and down in the corresponding with it through hole of two rectangle tube sheets respectively and is tightly connected, the same end of this two tube sheet links to each other with two tube sheets of heat pipe smoke chamber respectively, be provided with two vertical Shell Plates relative and that link to each other with flow-disturbing seed cell two Shell Plates in the both sides of above-mentioned two tube sheets, itself and two tube sheets constitute Heat Room, the one side opening links to each other with the heat pipe smoke chamber, the opposite side opening links to each other with smoke outlet tube one end, this Heat Room upper perforated plate links to each other with the bobbin carriage under shed of air transition section B, and lower perforated plate links to each other with air intlet Guan Yiduan.
2. the flue gas of bottom horizontal flow sheet according to claim 1 is reduced to the air preheater of low temperature from high temperature, it is characterized in that: turbolator pipe peripheral hardware fin.
3. the flue gas of bottom horizontal flow sheet according to claim 1 and 2 is reduced to the air preheater of low temperature from high temperature, it is characterized in that: the heat pipe peripheral hardware fin of heat-pipe air preheater.
4. flue gas according to claim 3 is reduced to the air preheater of low temperature from high temperature, it is characterized in that: the upper cover plate of heat-pipe air preheater and upper perforated plate flexibly connect.
5. the flue gas of bottom horizontal flow sheet according to claim 1 is reduced to the air preheater of low temperature from high temperature, it is characterized in that: be provided with the expansion joint that arc constitutes in the end of high temperature turbolator heat exchanger air outlet slit side pipe plate.
6. the flue gas of bottom horizontal flow sheet according to claim 1 is reduced to the air preheater of low temperature from high temperature, it is characterized in that: be provided with the expansion joint that arc constitutes in the end of low-temperature corrosion protection heat collector air inlet side tube sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200101404U CN201593801U (en) | 2010-01-11 | 2010-01-11 | Air preheater capable of cooling horizontally flowing flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200101404U CN201593801U (en) | 2010-01-11 | 2010-01-11 | Air preheater capable of cooling horizontally flowing flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593801U true CN201593801U (en) | 2010-09-29 |
Family
ID=42775868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200101404U Expired - Fee Related CN201593801U (en) | 2010-01-11 | 2010-01-11 | Air preheater capable of cooling horizontally flowing flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623985A (en) * | 2015-01-30 | 2015-05-20 | 福建龙净环保股份有限公司 | Flue gas heating device and flue gas processor thereof |
-
2010
- 2010-01-11 CN CN2010200101404U patent/CN201593801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623985A (en) * | 2015-01-30 | 2015-05-20 | 福建龙净环保股份有限公司 | Flue gas heating device and flue gas processor thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10378831B2 (en) | Counter-flow fin plate heat exchanger for gas-gas heat exchange | |
| CN201582842U (en) | Combined air preheater | |
| CN104457345B (en) | A kind of fin plate heat-exchanger rig for condensed flue gas waste heat recovery | |
| CN201593800U (en) | Air preheater with vertically-flowing smoke reducing from high temperature to low temperature | |
| CN201133777Y (en) | Air pre-heating device for high-temperature flue gas | |
| CN101520205A (en) | Separable heat pipe heating system | |
| CN201028567Y (en) | Heat pipe type air preheater | |
| CN202757502U (en) | Hot medium self-circulating heat exchanger with adjustable load | |
| CN201599817U (en) | Integral type tubular heat exchanger for exchanging heat between high-temperature flue gas and mediums | |
| CN201593801U (en) | Air preheater capable of cooling horizontally flowing flue gas | |
| CN102635842B (en) | Separated type fin plate steam generator | |
| CN201273778Y (en) | Low temperature flue gas heat collector | |
| CN201081587Y (en) | Composite heat pipe heat exchanger | |
| CN201867104U (en) | Horizontal integral heat-tube heat exchanger | |
| CN103712495A (en) | Heat exchange device for recycling flue gas waste heat | |
| CN103994681B (en) | Vertical flue complex phase-change heat exchanger | |
| CN203928848U (en) | The condensing heat exchanger of a kind of condensing heat exchange plate and application thereof | |
| CN208504795U (en) | Frostless air-source heat pump unit | |
| CN102419122A (en) | Two-phase-flow air preheater | |
| CN202562342U (en) | Fin-type double phase steel heat pipe heat exchanger and corresponding flue gas desulfurization equipment | |
| CN201897416U (en) | Loop-type heat-pipe heat exchanger | |
| CN2331914Y (en) | Heat-storage pipe-type air preheater | |
| CN219510834U (en) | Flue gas absorption type cold water/heat pump unit of heat pipe type generator | |
| CN202304515U (en) | Two-phase flow air preheater | |
| CN102102955A (en) | Integrated horizontal-type heat pipe exchanger |
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: 20100929 Termination date: 20130111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |