CN101017059A - Method for smoke gas residual heat utilization and device therefor - Google Patents
Method for smoke gas residual heat utilization and device therefor Download PDFInfo
- Publication number
- CN101017059A CN101017059A CNA2007100674521A CN200710067452A CN101017059A CN 101017059 A CN101017059 A CN 101017059A CN A2007100674521 A CNA2007100674521 A CN A2007100674521A CN 200710067452 A CN200710067452 A CN 200710067452A CN 101017059 A CN101017059 A CN 101017059A
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- heat
- temperature
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- flue gas
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000779 smoke Substances 0.000 title abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 36
- 239000003546 flue gas Substances 0.000 claims description 36
- 239000003517 fume Substances 0.000 claims description 20
- 239000002918 waste heat Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000005245 sintering Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a method for utilizing the left heat of smoke and relative device, belonging to the heat exchange technique of left-heat boiler or heat exchanger. The invention feeds several smokes in different temperatures into boiler or heat exchanger, wherein the high-temperature smoke is cooled in high-temperature heat exchange face/area/chamber, while the temperature difference between high and low temperature smokes is higher than 50Deg. C when being mixed with low-temperature smoke at the temperature of the low temperature smoke, to recycle the left heat most. The inventive device is formed by a high temperature smoke inlet, a low temperature smoke inlet, a high temperature heat exchange face/area/chamber, a low temperature heat exchange face/area/chamber, mixing heat exchange face/area/chamber and a smoke outlet. The invention can recycle left heat most, with simple structure, flexible size and number, while the heat exchange face uses tubular box type, to confirm quality and improve installment speed, to be widely used in variable left-heat boilers and heat exchangers.
Description
Technical field
The present invention relates to method and device thereof that a kind of fume afterheat utilizes, relate generally to the heat transfer technology field of waste heat boiler or heat exchanger.
Background technology
Reality steel mill, cement plant etc. all exist energy-conservation and technical problem UTILIZATION OF VESIDUAL HEAT IN, and therefore how the recovery of carrying out heat energy of the flue gas that emits of the utilization of peak efficiency is the problem that the technical staff keeps reforming.In steel manufacture process, the energy consumption of sintering circuit accounts for 10% of total energy consumption, is only second to the ironmaking operation, occupies second.In the total energy consumption of sintering circuit, it is that sensible heat form with sintering device flue gas and cooling machine waste gas enters atmosphere that 50% heat energy is nearly arranged.Because the temperature of sinter cooler waste gas is not high, therefore generally this part heat is not recovered, and perhaps only adopts simple heat exchanger to carry out waste heat and absorbs, and not only organic efficiency is low, and the quantity of steam that produces is less.
The reality fume afterheat utilizes technology, normally with the flue gas of two kinds or multiple different temperatures, enters waste heat boiler in the lump after mixing in advance or heat exchanger carries out heat exchange.This mode makes that the capacity usage ratio of flue gas is very low owing to do not utilize the high-quality heat of high-temperature flue gas fully.
Up to now, by retrieval and the professional for the understanding of domestic and international correlation technique, still not with the method that the present invention relates to be the identical and akin technology appearance of equipment that realizes that the inventive method provided.The present invention can make the flue gas waste heat recovery utilization to peak efficiency, is a domestic and international advanced person's technology.
Summary of the invention
The objective of the invention is for solving method and the device thereof that the reality technology problem provides a kind of fume afterheat to utilize, it divides open walk/inlet to enter a waste heat boiler or heat exchanger multiple different temperatures flue gas, high-temperature flue gas is through cooling in high temperature heat-transfer surface/district/chamber, reduce to when temperature and to mix again when suitable with the low-temperature flue gas temperature, the low-temperature heat exchange face of flowing through is jointly recycled the fume afterheat of different temperatures to greatest extent.
The present invention includes the method that a kind of fume afterheat utilizes, it is characterized in that: the flue gas of two or more different temperatures enters respectively in high and low temperature heat-transfer surface/district/chamber, when the temperature of high-temperature flue gas is reduced to the temperature difference with low-temperature flue gas less than 50 ℃, enter the maximum that obtains waste heat in mixed heat transfer face/district/chamber again and recycle; Wherein: the temperature difference of two or more different temperatures flue gas is greater than 50 ℃.
The present invention also comprises a kind of device of realizing said method, it is characterized in that: it is made of high-temperature flue gas entry A, low-temperature flue gas inlet B, high temperature heat-transfer surface/district/chamber 1, low-temperature heat exchange face/district/chamber 2, mixed heat transfer face/district/chamber 5 and fume emission mouth C.
According to device of the present invention, it is characterized in that: in described high temperature heat-transfer surface/district/chamber 1 and mixed heat transfer face/district/chamber 5, be provided with the heat-transfer surface that quantity does not limit.Heat-transfer surface wherein can mainly be made of heating surface pipe 3 and heating surface collection case 4.
Described device is characterized in that: described high temperature heat-transfer surface/district/chamber 1 and low-temperature heat exchange face/district/chamber 2 can be cavitys independently, also can separate and realize by adding a dividing plate.
Described device, it is characterized in that: described high temperature heat-transfer surface/district/chamber 1 and low-temperature heat exchange face/district/chamber 2 reaches and their matching used mixed heat transfer face/district/chambeies 5, and the quantity of its setting, specification, shape can be determined according to scene and the space requirement of high-temperature flue gas entry A and low-temperature flue gas inlet B and flue gas/exhaust gas outlet C.
Method and device thereof that fume afterheat of the present invention utilizes, good effect mainly contains: 1, the method for fume afterheat utilization provided by the present invention, owing to divide open walk to enter in high and low temperature heat transfer zone/chamber the flue gas of two or more different temperatures, greatly improved the fume afterheat utilization rate, the maximum that obtains fume afterheat reclaims.2, the present invention and be provided as the device technique scheme that realizes said method, the method that can carry out an invention simply, effectively, and the shape of equipment, dimensions and quantity all can arbitrarily change flexibly designs, installs and use brings great convenience.3, the quantity of heat-transfer surface does not limit, and can change flexibly, and its structure adopts the bobbin carriage form, has guaranteed workmanship, and has improved installation rate.4, can be widely used in various types of waste heat boilers and heat exchanger system, especially for the waste heat boiler of sinter cooler waste heat boiler and cement kiln.
Description of drawings
Fig. 1 is the schematic diagram with device embodiment 1 of the present invention;
Fig. 2 is the schematic diagram with device embodiment 2 of the present invention.
The specific embodiment
Shown in the figure: A, high-temperature flue gas entry; B, low-temperature flue gas inlet; C, fume emission mouth; 1, high temperature heat-transfer surface/district/chamber; 2, low-temperature heat exchange face/district/cavity; 3, heating surface pipe; 4, heating surface collection case; 5, mixed heat transfer face/district/cavity.
Further describe detailed technology content of the present invention and two embodiment below in conjunction with accompanying drawing.
The method that a kind of fume afterheat of the present invention utilizes, the mode of having taked two or more different temperatures flue gas subchannel to enter integral type waste heat boiler or heat exchanger body, high-temperature flue gas can be used to heat the medium heat exchange of higher temperature earlier by high temperature heat-transfer surface/district/chamber, (temperature difference is less than 50 ℃) mix again when suitable with the low-temperature flue gas temperature when temperature is reduced to, the low-temperature heat exchange face of flowing through jointly then, the medium of heating lower temperature is utilized the fume afterheat of different temperatures.The present invention can be used in the sintering circular-cooler waste heat boiler, contained dust in the waste heat of sintering circular-cooler exhaust and the exhaust in the utilization recovery steel mill sintering process, and waste heat recovery produces the steam of two kinds of pressure, enters steam turbine then and is used for generating.Waste heat boiler carries oxygen-eliminating device, and self deoxygenation mode is adopted in feedwater, and deoxygenation water tank and low pressure drum integrate.Interface band 100% bypath system of afterheat boiler system and main process system.
Accompanying drawing 1 is the structural representation of the embodiment 1 that provides of the device for the method that realizes fume afterheat utilization of the present invention.This embodiment represents to adopt the schematic diagram of dividing plate mode, wherein A is a high-temperature flue gas entry, B is the low-temperature flue gas inlet, and the A shown in the figure, B inlet only for the smoke inlet signal, all is not limited by the restriction of present embodiment for concrete quantity, shape, the dimensions of inlet; The shape of complete machine, specification are not limited by the restriction of present embodiment yet, and the mode of layout and position can be vertical, horizontal or tilting flexibly.
Accompanying drawing 2 is the structural representations for the another embodiment 2 of the device of realizing the method that fume afterheat of the present invention utilizes.The high and low temperature heat-transfer surface that this embodiment represents is the schematic diagram of the mode of individual cavity, wherein A is a high-temperature flue gas entry, B is the low-temperature flue gas inlet, A shown in the figure, B inlet only illustrates for smoke inlet, for smoke inlet and individual cavity concrete quantity, shape, dimensions all be not limited by the restriction of present embodiment; The shape of complete machine, specification are not limited by the restriction of present embodiment yet, and the mode of layout and position can be vertical, horizontal or tilting.
Method and device thereof that fume afterheat of the present invention utilizes; the present invention has only done detailed description with regard to illustrated embodiments; but can not be interpreted as restriction to other modes of the invention process; everyly further improve and similar or identical scheme on basis of the present invention, all being considered as is the scope that the present invention asks for protection.
Claims (6)
1, a kind of method of fume afterheat utilization, it is characterized in that: the flue gas of two or more different temperatures enters respectively in high and low temperature heat-transfer surface/district/chamber, when the temperature of high-temperature flue gas is reduced to the temperature difference with low-temperature flue gas less than 50 ℃, enter the maximum that obtains waste heat in mixed heat transfer face/district/chamber again and recycle; Wherein: the temperature difference of two or more different temperatures flue gas is greater than 50 ℃.
2, a kind of device of realizing the described method of claim 1 is characterized in that: it is made of high-temperature flue gas entry (A), low-temperature flue gas inlet (B), high temperature heat-transfer surface/district/chamber (1), low-temperature heat exchange district/chamber (2), mixed heat transfer face/district/chamber (3) and fume emission mouth (C).
3, device according to claim 2 is characterized in that: be provided with the heat-transfer surface that quantity does not limit in described high temperature heat-transfer surface/district/chamber (1) and mixed heat transfer face/district/chamber in (3).
4, device according to claim 3 is characterized in that: described heat-transfer surface can mainly be made of heating surface pipe (3) and heating surface collection case (4).
5, device according to claim 2 is characterized in that: described high temperature heat-transfer surface/district/chamber (1) and low-temperature heat exchange face/district/chamber (2) can be individual cavity, also can separate realization by adding a dividing plate.
6, device according to claim 2, it is characterized in that: described high temperature heat-transfer surface/district/chamber (1) and low-temperature heat exchange face/district/chamber (2) reach and their matching used mixed heat transfer face/district/chamber (3), and the quantity of its setting, specification, shape are determined according to the scene and the space requirement of high-temperature flue gas entry (A) and low-temperature flue gas inlet (B) and fume emission mouth (C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100674521A CN100453944C (en) | 2007-03-13 | 2007-03-13 | Method and device for utilizing waste heat of flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100674521A CN100453944C (en) | 2007-03-13 | 2007-03-13 | Method and device for utilizing waste heat of flue gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101017059A true CN101017059A (en) | 2007-08-15 |
| CN100453944C CN100453944C (en) | 2009-01-21 |
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ID=38726217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100674521A Active CN100453944C (en) | 2007-03-13 | 2007-03-13 | Method and device for utilizing waste heat of flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100453944C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666485B (en) * | 2009-08-25 | 2011-04-13 | 南通万达锅炉股份有限公司 | Double-inlet double-flue modular afterheat boiler |
| CN102620424A (en) * | 2012-04-10 | 2012-08-01 | 河南省豫兴热风炉工程技术有限公司 | Top combustion stove with layered high and low temperature flue dual-preheating system |
| CN102967156A (en) * | 2012-12-13 | 2013-03-13 | 中冶焦耐工程技术有限公司 | A plug-in preheating device |
| CN112944969A (en) * | 2021-01-28 | 2021-06-11 | 山东佰腾知识产权运营中心有限公司 | Hierarchical tower waste heat recovery device for municipal sludge treatment |
| CN116518499A (en) * | 2023-02-01 | 2023-08-01 | 山东岱荣节能环保科技有限公司 | Waste heat recovery type ventilation equipment |
| CN116839220A (en) * | 2023-08-16 | 2023-10-03 | 贵阳铝镁设计研究院有限公司 | A multi-parameter flue gas waste heat heat transfer oil device |
| CN117168016A (en) * | 2023-09-14 | 2023-12-05 | 益凯芯(合肥)生物科技有限公司 | A refrigerant circulation heat pump system and cell culture incubator based on semiconductor refrigerator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032393A (en) * | 1987-09-29 | 1989-04-12 | 生产联合企业“别尔哥罗德动力机械制造厂” | Tunnel type UTILIZATION OF VESIDUAL HEAT IN boiler |
| CN1067730A (en) * | 1991-06-08 | 1993-01-06 | 冶金工业部马鞍山钢铁设计研究院 | Utilize flue gas and hot blast method and device for the heating heavy oil of thermal source |
| CN2222891Y (en) * | 1995-01-15 | 1996-03-20 | 陈启松 | Flue gas purifying energy saver |
| JP2002139201A (en) * | 2000-10-31 | 2002-05-17 | Toshiba Corp | Exhaust heat recovery boiler and its repair method |
| JP2005042961A (en) * | 2003-07-25 | 2005-02-17 | Toshiba Corp | Waste heat recovery boiler and its operation method |
-
2007
- 2007-03-13 CN CNB2007100674521A patent/CN100453944C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666485B (en) * | 2009-08-25 | 2011-04-13 | 南通万达锅炉股份有限公司 | Double-inlet double-flue modular afterheat boiler |
| CN102620424A (en) * | 2012-04-10 | 2012-08-01 | 河南省豫兴热风炉工程技术有限公司 | Top combustion stove with layered high and low temperature flue dual-preheating system |
| CN102967156A (en) * | 2012-12-13 | 2013-03-13 | 中冶焦耐工程技术有限公司 | A plug-in preheating device |
| CN112944969A (en) * | 2021-01-28 | 2021-06-11 | 山东佰腾知识产权运营中心有限公司 | Hierarchical tower waste heat recovery device for municipal sludge treatment |
| CN116518499A (en) * | 2023-02-01 | 2023-08-01 | 山东岱荣节能环保科技有限公司 | Waste heat recovery type ventilation equipment |
| CN116518499B (en) * | 2023-02-01 | 2023-09-19 | 山东岱荣节能环保科技有限公司 | Waste heat recovery type ventilation equipment |
| CN116839220A (en) * | 2023-08-16 | 2023-10-03 | 贵阳铝镁设计研究院有限公司 | A multi-parameter flue gas waste heat heat transfer oil device |
| CN117168016A (en) * | 2023-09-14 | 2023-12-05 | 益凯芯(合肥)生物科技有限公司 | A refrigerant circulation heat pump system and cell culture incubator based on semiconductor refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100453944C (en) | 2009-01-21 |
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Address after: 310004 No. 245 Dong Xin Road, Xiacheng District, Zhejiang, Hangzhou Patentee after: Xizi clean energy equipment manufacturing Co.,Ltd. Address before: 310004 No. 245 Dong Xin Road, Xiacheng District, Zhejiang, Hangzhou Patentee before: HANGZHOU BOILER GROUP Co.,Ltd. |
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