CN201593800U - Air preheater with vertically-flowing smoke reducing from high temperature to low temperature - Google Patents
Air preheater with vertically-flowing smoke reducing from high temperature to low temperature Download PDFInfo
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- CN201593800U CN201593800U CN2010200101391U CN201020010139U CN201593800U CN 201593800 U CN201593800 U CN 201593800U CN 2010200101391 U CN2010200101391 U CN 2010200101391U CN 201020010139 U CN201020010139 U CN 201020010139U CN 201593800 U CN201593800 U CN 201593800U
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- 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
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Abstract
An air preheater with vertically-flowing smoke reducing from high temperature to low temperature, which is mainly characterized in that a high-temperature turbulator heat exchanger, a heat tube air preheater and a low-temperature anti-corrosive cooler are sequentially arranged in the heat exchanging process from a high-temperature smoke inlet to a low-temperature smoke outlet, and air transition sections are arranged among the high-temperature turbulator heat exchanger, the heat tube air preheater and the low-temperature anti-corrosive cooler. The high-temperature turbulator heat exchanger mainly comprises a turbulator tube bundle, a tube plate, a shell plate; a smoke inlet tube and an air outlet tube; the heat tube air preheater mainly comprises a heat tube bundle, the tube plate, a middle baffle, a cover plate and the shell plate; and the low-temperature anti-corrosive cooler mainly comprises an enamel tube bundle, the tube plate, the shell plate, a smoke outlet tube and an air inlet tube. The air preheater gives play to the advantages of various heat exchangers to realize step-by-step heat exchange, is used in two limited working conditions of gas conversion from higher temperature to lower temperature, and has high heat efficiency, low cost, safety, reliability and long service.
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 is 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, and the flue gas medium temperature of many operating modes is than higher simultaneously, 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, easily caused internal working medium to be detained when temperature is low, 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, perpendicular flow 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 and 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.Two interior and sealed attachment of through hole that the rectangle tube sheet is corresponding with it were the level of state the turbolator tube bank about these turbolator tube bank two ends, the left and right sides placed respectively.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, this above flow-disturbing seed cell opening link to each other with flue gas inlet tube one end, lower aperture links to each other with the heat-pipe air preheater smoke chamber; This flow-disturbing seed cell one side pipe plate links to each other with air outlet slit Guan Yiduan, and the opposite side tube sheet links to each other with the tube case side opening of air transition section A, and the bobbin carriage under shed 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 vertical central dividing plate, this central dividing plate upper 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, in the through hole that two rectangle tube sheets were corresponding with it about the two ends, the left and right sides of above-mentioned heat pipe bundle placed respectively, and make heat pipe bundle and horizontal direction be 3～20 degree angles and be positioned at air chamber one side and be higher than smoke chamber one side, one of above-mentioned two tube sheet link to each other with the tube sheet that above-mentioned flow-disturbing seed cell is positioned at air outlet slit assembly one side, and another piece links to each other with the vertical boxboard of air transition section A.Be respectively equipped with in the outside of above-mentioned two tube sheets and link to each other with left and right sides tube sheet and heat pipe is covered in left and right sides cover plate in it, preferably cover plate flexibly connects with tube sheet, during with convenient heat pipe failure, can open the 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, the square tube that is communicated with the air transition section is heat pipe air chamber (condensation segment), and the square tube that is communicated with the flow-disturbing seed cell is heat pipe smoke chamber (evaporator section).The chamber upper shed of above-mentioned heat pipe air links to each other with the tube case side opening of air transition section A, and under shed links to each other with the bobbin carriage upper shed of air transition section B; The upper shed of above-mentioned heat pipe smoke chamber links to each other with the under shed of flow-disturbing seed cell, and under shed links to each other with the upper shed of low-temperature corrosion protection heat collector.
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.In the through hole that two rectangle tube sheets were corresponding with it about this enamel tube bank two ends, the left and right sides placed respectively and be tightly connected, the enamel tube bank is the level of state, the upper end of this two tube sheet links to each other with central dividing plate with the tube sheet 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 its upper shed links to each other with the heat pipe smoke chamber, and under shed links to each other with smoke outlet tube one end; This Heat Room one side pipe plate links to each other with the tube case side opening of air transition section B, and another tube sheet 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 perpendicular flow 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.Two interior and sealed attachment of through hole that rectangle tube sheet 3 is corresponding with it about these turbolator tube bank two ends, the left and right sides place 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 upper shed links to each other with flue gas inlet tube 5 one ends, and under shed links to each other with heat-pipe air preheater 6 smoke chambers; This flow-disturbing seed cell one side pipe plate links to each other with air outlet slit pipe 7 one ends, and the opposite side tube sheet links to each other with bobbin carriage 8 side openings of air transition section A, is provided with the expansion joint that arc constitutes in the end of flow-disturbing seed cell air outlet slit side pipe plate.The bobbin carriage under shed of above-mentioned air transition section A 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 vertical central dividing plate 10, this central dividing plate upper 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, in the through hole that two rectangle tube sheets 11 were corresponding with it about the two ends, the left and right sides of above-mentioned heat pipe bundle placed respectively, and make heat pipe bundle and horizontal direction be 3～20 degree angles and be positioned at air chamber one side and be higher than smoke chamber one side, one of above-mentioned two tube sheet link to each other with the tube sheet that above-mentioned flow-disturbing seed cell is positioned at air outlet slit pipe one side, and another piece links to each other with the vertical boxboard of air transition section A.Be respectively equipped with in the outside of above-mentioned two tube sheets and link to each other with tube sheet and heat pipe is covered in left and right sides cover plate 12 in it, and cover plate and tube sheet flexibly connect.Be provided with two vertical Shell Plates 13 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, the square tube that is communicated with the air transition section is heat pipe air chamber (condensation segment), and the square tube that is communicated with the flow-disturbing seed cell is heat pipe smoke chamber (evaporator section).This heat pipe air chamber upper shed links to each other with the tube case side opening of air transition section A, and under shed links to each other with bobbin carriage 14 upper sheds of air transition section B; This heat pipe smoke chamber upper shed links to each other with the under shed of flow-disturbing seed cell, and under shed links to each other with 15 upper sheds of low-temperature corrosion protection heat collector.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.In the through hole that two rectangle tube sheets 17 were corresponding with it about this enamel tube bank two ends, the left and right sides placed respectively and be tightly connected.Be provided with two vertical Shell Plates 18 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 its upper shed links to each other with the heat pipe smoke chamber, and under shed links to each other with smoke outlet tube 19 1 ends; This Heat Room one side pipe plate links to each other with the tube case side opening of air transition section B, and the opposite side tube sheet links to each other with air intlet pipe 20 1 ends.Be provided with the expansion joint that arc constitutes in the end of low-temperature corrosion protection heat collector air inlet side tube sheet.
Claims (6)
1. the flue gas of a perpendicular flow 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 has the heat exchanger tube of turbolator in being, two interior and sealed attachment of through hole that the rectangle tube sheet is corresponding with it about these turbolator pipe composition turbolator tube bank two ends, the left and right sides place 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 opening above the flow-disturbing seed cell that two tube sheets constitute, lower aperture links to each other with the heat-pipe air preheater smoke chamber, this flow-disturbing seed cell one side pipe plate links to each other with air outlet slit Guan Yiduan, the opposite side tube sheet links to each other with the tube case side opening of air transition section A, the bobbin carriage under shed of this air transition section A links to each other with the heat-pipe air preheater air chamber, 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 vertical central dividing plate, this central dividing plate upper 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, in the through hole that two rectangle tube sheets were corresponding with it about the two ends, the left and right sides of above-mentioned heat pipe bundle placed respectively, and make heat pipe bundle and horizontal direction be 3～20 degree angles and be positioned at air chamber one side and be higher than smoke chamber one side, one of above-mentioned two tube sheet link to each other with the tube sheet that above-mentioned flow-disturbing seed cell is positioned at air outlet slit assembly one side, another piece links to each other with the vertical boxboard of air transition section A, be respectively equipped with in the outside of above-mentioned two tube sheets and link to each other with tube sheet and heat pipe is covered in left and right sides cover plate 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, the heat pipe air chamber under shed that this upper shed links to each other with the tube case side opening of air transition section A links to each other with the bobbin carriage upper shed of air transition section B; The heat pipe smoke chamber under shed that this upper shed links to each other with the under shed of flow-disturbing seed cell links to each other with the upper shed of low-temperature corrosion protection heat collector, the enamel pipe of low-temperature corrosion protection heat collector is the metal tube that the outside has enamel layer, in the through hole that two rectangle tube sheets were corresponding with it about this enamel pipe was formed enamel tube bank two ends, the left and right sides and placed respectively and be tightly connected, the upper end of this two tube sheet links to each other with central dividing plate with the tube sheet 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 Heat Room that itself and two tube sheets constitute, its upper shed links to each other with the heat pipe smoke chamber, under shed links to each other with smoke outlet tube one end, this Heat Room one side pipe plate links to each other with the tube case side opening of air transition section B, and another tube sheet links to each other with air intlet Guan Yiduan.
2. the flue gas of perpendicular flow 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 perpendicular flow 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. the flue gas of perpendicular flow according to claim 3 is reduced to the air preheater of low temperature from high temperature, it is characterized in that: the cover plate of heat-pipe air preheater and tube sheet flexibly connect.
5. the flue gas of perpendicular flow 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 perpendicular flow 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 |
|---|---|---|---|
| CN2010200101391U CN201593800U (en) | 2010-01-11 | 2010-01-11 | Air preheater with vertically-flowing smoke reducing from high temperature to low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200101391U CN201593800U (en) | 2010-01-11 | 2010-01-11 | Air preheater with vertically-flowing smoke reducing from high temperature to low temperature |
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| Publication Number | Publication Date |
|---|---|
| CN201593800U true CN201593800U (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010200101391U Expired - Fee Related CN201593800U (en) | 2010-01-11 | 2010-01-11 | Air preheater with vertically-flowing smoke reducing from high temperature to low temperature |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162307A (en) * | 2011-12-08 | 2013-06-19 | 洛阳合纵石化工程有限公司 | Novel process design method of tube heating furnace waste heat recovery system |
| CN105066166A (en) * | 2015-07-31 | 2015-11-18 | 天津辰创环境工程科技有限责任公司 | Turbolator-cast iron tube combined type air preheater and heating furnace waste heat recycling method |
| CN106679452A (en) * | 2015-08-20 | 2017-05-17 | 胜帮科技股份有限公司 | Epoxypropane reactor |
-
2010
- 2010-01-11 CN CN2010200101391U patent/CN201593800U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162307A (en) * | 2011-12-08 | 2013-06-19 | 洛阳合纵石化工程有限公司 | Novel process design method of tube heating furnace waste heat recovery system |
| CN105066166A (en) * | 2015-07-31 | 2015-11-18 | 天津辰创环境工程科技有限责任公司 | Turbolator-cast iron tube combined type air preheater and heating furnace waste heat recycling method |
| CN106679452A (en) * | 2015-08-20 | 2017-05-17 | 胜帮科技股份有限公司 | Epoxypropane reactor |
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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: 20100929 Termination date: 20130111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |