CN201355049Y - Hot-air furnace air and gas double preheating all-welded plate-type heat exchanger - Google Patents
Hot-air furnace air and gas double preheating all-welded plate-type heat exchanger Download PDFInfo
- Publication number
- CN201355049Y CN201355049Y CNU2009200227128U CN200920022712U CN201355049Y CN 201355049 Y CN201355049 Y CN 201355049Y CN U2009200227128 U CNU2009200227128 U CN U2009200227128U CN 200920022712 U CN200920022712 U CN 200920022712U CN 201355049 Y CN201355049 Y CN 201355049Y
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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
The utility model relates to a hot-air furnace air and gas double preheating all-welded plate-type heat exchanger which comprises an air-gas inlet pipe box, an air-gas outlet pipe box, a smoke gas inlet pipe box, a smoke gas outlet pipe box and a box body. The hot air furnace air and gas double preheating all-welded plate-type heat exchanger is characterized in that the box body is internally equipped with at least a heat exchanging plate beam module which is formed by a plurality of rectangular corrugated sheets via symmetric superposition mode, the left and right ends of the heat exchanging plate beam module are respectively communicated with the smoke gas inlet pipe box and smoke gas outlet pipe box, and the upper and lower ends of the heat exchanging plate beam module are respectively communicated with the air-gas inlet pipe box and air-gas outlet pipe box. Due to the adoption of the heat exchanging plate beam module which is composed of a group of convex-concave corrugated baffle plates, cold fluid and hot fluid crisscross flow in the cross- interval plate cavity to form their own inlet and outlet, and the heat transfer effect is excellent because no intermediate heat transfer working fluid exists. Due to modular characteristic, the heat transfer area can be increased or reduced by adjusting the number of plates according to production needs, and the examination, repair and cleaning are easy. Furthermore, a plurality of heat exchangers can be combined to form various preheating systems so as to satisfy different preheating needs.
Description
Technical field
The utility model relates to the two preheatings of a kind of hot-blast stove air gas and welds plate type heat exchanger entirely, particularly a kind of full weldering plate type heat exchanger that adopts heat exchanger plates bundle module.
Background technology
Contain a large amount of heats in the blast furnace iron-making process exhaust gas of hot-blast stove, for energy savings, and, generally adopt heat exchange of heat pipe, pipe heat exchanger (comprising the sub-heat exchanger of rich stream), heating agent formula heat exchanger etc. to reclaim the exhaust gas of hot-blast stove waste heat in order to improve hot blast temperature, coal gas and combustion air are carried out preheating.But the heat exchanger that is adopted is all undesirable.The shortcoming of heat exchange of heat pipe is: first exchanging air generally adopts water-steel heat pipe, and water-steel heat pipe voltage endurance capability is limited, improves preheat temperature and easily causes heat pipe to be revealed even the heat pipe explosion; It two is that water-steel heat pipe can produce incondensable gas in running, forms the vent plug behind efficiency and reduces; It three is that the environment dust quantity is big, and dust adhesion increases dirtiness resistance, lowers efficiency.The shortcoming of pipe heat exchanger is: the heat exchanger heat exchange area per unit volume is little, and it is more to consume metal material, and heat exchange efficiency is low, and the pipe heat exchanger floor space is big.The shortcoming of heating agent formula heat exchanger is: conduct heat by heating agent, increased intermediate link, heat transfer efficiency reduces; Next is that heating agent need be carried with pump, and consumption increases electric power; Also have heating agent to reveal easily, cause heat exchanger failure and contaminated environment.The problem of essence is the hot-blast stove blast furnace gas that only burns, and the collection of exhaust gas of hot-blast stove temperature is unsatisfactory, can't obtain higher hot blast temperature.
Summary of the invention
The purpose of this utility model is to abandon above-mentioned the deficiencies in the prior art, proposes the two preheatings of a kind of hot-blast stove air gas and welds plate type heat exchanger entirely, it adopts heat exchanger plates bundle module, can optimize the heat exchange compound mode, improve heat exchanger effectiveness, very high practical value is arranged.
Plate type heat exchanger is welded in the two preheatings of a kind of hot-blast stove air gas described in the utility model entirely, and it comprises air gas import and export bobbin carriage, flue gas import and export bobbin carriage, and casing is characterized in that: be provided with a heat exchanger plates bundle module in the casing at least.
Heat exchanger plates bundle module described in the utility model is formed by stacking by some rectangle corrugated cardboard sheet symmetries; End is connected with flue gas import and export bobbin carriage respectively about heat exchanger plates bundle module; The upper and lower side of heat exchanger plates bundle module is connected with the import and export bobbin carriage of air gas respectively.
One of embodiment of the present utility model, flue gas enters from the left side of casing, and come out in the right side, and air gas enters from the top of casing, and come out in the bottom, and the heat exchanger plates bundle module in the casing is done the corresponding single process combination that is connected to become with it.
Two of embodiment of the present utility model, flue gas enters from the left side of casing, and come out in the right side, and air gas enters from the top, right side of casing, and left side top is come out, and the heat exchanger plates bundle module in the casing is made the corresponding double-current Cheng Zuhe that is connected to become with it.
Three of embodiment of the present utility model, flue gas enters from the left side of casing, and come out in the right side, and air gas enters from the top, right side of casing, and left bottom is come out, and the heat exchanger plates bundle module in the casing is made corresponding three path combinations that are connected to become with it.
Casing of the present utility model is provided with some inspection manholes, and pipeline and casing are provided with insulation material.
The beneficial effects of the utility model are, owing to adopt heat exchanger plates bundle module, it concavo-convexly is undulatory dividing plate and forms by one group, and cold fluid and hot fluid be staggered mobile formation import and export separately in the plate chamber of transpostion interval, because heat-transfer working medium in the middle of not having is so heat-transfer effect is good.And because the modularization characteristics, operating flexibility is big, can be according to producing needs by adjustable plate number increase and decrease heat transfer area, and maintenance and cleaning are convenient.And can utilize many heat exchangers to carry out various combination, form various pre-heating systems, satisfy different pre-heat demands.
Description of drawings
Fig. 1 is the utility model embodiment one single process schematic diagram.
Fig. 2 is the utility model embodiment two double-current journey schematic diagrames.
Fig. 3 is the utility model embodiment three or three schematic flow sheets.
Fig. 4 is the utility model heat exchanger plates bundle module diagram.
Among the figure: 1. air gas import bobbin carriage, 2. air gas outlet bobbin carriage, 3. gas approach bobbin carriage, 4. exhanst gas outlet bobbin carriage, 5. casing, 6. heat exchanger plates bundle module, 7. inspection manhole, 8. insulation material.
The specific embodiment
Plate type heat exchanger is welded in the two preheatings of a kind of hot-blast stove air gas described in the utility model entirely, shown in Fig. 1,2,3,4, it comprises air gas import bobbin carriage 1, air gas outlet bobbin carriage 2, gas approach bobbin carriage 3, exhanst gas outlet bobbin carriage 4, casing 5 is provided with a heat exchanger plates bundle module 6 at least in the casing.Heat exchanger plates bundle module described in the utility model is formed by stacking by some rectangle corrugated cardboard sheet symmetries; End is connected with flue gas import and export bobbin carriage respectively about heat exchanger plates bundle module; The upper and lower side of heat exchanger plates bundle module is connected with the import and export bobbin carriage of air gas respectively.Casing of the present utility model is provided with some inspection manholes 7, and pipeline and casing are provided with insulation material 8.
One of embodiment of the present utility model, flue gas enters from the left side of casing, and come out in the right side, and air gas enters from the top of casing, and come out in the bottom, and the heat exchanger plates bundle module in the casing is done the corresponding single process combination that is connected to become with it.
Two of embodiment of the present utility model, flue gas enters from the left side of casing, and come out in the right side, and air gas enters from the top, right side of casing, and left side top is come out, and the heat exchanger plates bundle module in the casing is made the corresponding double-current Cheng Zuhe that is connected to become with it.
Three of embodiment of the present utility model, flue gas enters from the left side of casing, and come out in the right side, and air gas enters from the top, right side of casing, and left bottom is come out, and the heat exchanger plates bundle module in the casing is made corresponding three path combinations that are connected to become with it.
The heat exchanger plates bundle module that the utility model adopted has higher preheat temperature of adaptation and more complicated pre-heating technique flow process, the dividing plate of heat exchanger plates bundle module can be made by metal material or ceramic material, cold fluid and hot fluid are by the direct heat transfer of dividing plate wooden partition, heat-transfer working medium in the middle of not having, preheat temperature is not limited by heat-transfer working medium critical-temperature, critical pressure, metal material or ceramic material have very high high-temperature capability, so the utility model can adapt to higher preheat temperature.In addition, the utility model compact conformation, the heat transfer area of unit volume is big, can reach 250～1000m
2/ m
3, the metal consumption is few.The overall heat-transfer coefficient height, because the plate face is pressed into corrugated or other complicated shapes, the mobile less turbulence of fluid is big, dirtiness resistance is little, promptly reaches turbulent flow under low reynolds number (about Re=200), and plate is thin, thereby complex heat transfer coefficient K value can reach 30～50W/m
2K.The utility model can change exhaust gases passes spacing and air gas channel pitch by changing concavo-convex support ripple height, realizes the optimal design of rate of flow of fluid.Concavo-convex support ripple can be circular, oval or other complicated shape.The utility model can carry out the combination of heat exchanger plates bundle module and the path combination of air gas according to the needs of heat exchange load and preheat temperature, can exchange fully between the heat exchanger plates bundle module and combination arbitrarily, realizes the maximization of equipment.
Claims (6)
1, plate type heat exchanger is welded in the two preheatings of a kind of hot-blast stove air gas entirely, and it comprises air gas import and export bobbin carriage, flue gas import and export bobbin carriage, and casing is characterized in that: be provided with a heat exchanger plates bundle module in the casing at least.
2, plate type heat exchanger is welded in two preheatings entirely according to the described a kind of hot-blast stove air gas of claim 1, and it is characterized in that: described heat exchanger plates bundle module is formed by stacking by some rectangle corrugated cardboard sheet symmetries; End is connected with flue gas import and export bobbin carriage respectively about heat exchanger plates bundle module; The upper and lower side of heat exchanger plates bundle module is connected with the import and export bobbin carriage of air gas respectively.
3, plate type heat exchanger is welded in two preheatings entirely according to the described a kind of hot-blast stove air gas of claim 1, it is characterized in that: flue gas enters from the left side of casing, come out in the right side, air gas enters from the top of casing, come out in the bottom, the heat exchanger plates bundle module in the casing is done the corresponding single process combination that is connected to become with it.
4, plate type heat exchanger is welded in two preheatings entirely according to the described a kind of hot-blast stove air gas of claim 1, it is characterized in that: flue gas enters from the left side of casing, come out in the right side, air gas enters from the top, right side of casing, left side top is come out, and the heat exchanger plates bundle module in the casing is made the corresponding double-current Cheng Zuhe that is connected to become with it.
5, plate type heat exchanger is welded in two preheatings entirely according to the described a kind of hot-blast stove air gas of claim 1, it is characterized in that: flue gas enters from the left side of casing, come out in the right side, air gas enters from the top, right side of casing, left bottom is come out, and the heat exchanger plates bundle module in the casing is made corresponding three path combinations that are connected to become with it.
6, weld plate type heat exchanger entirely according to claim 1 or the two preheatings of 2 or 3 or 4 or 5 described a kind of hot-blast stove air gas, it is characterized in that: casing is provided with some inspection manholes, and pipeline and casing are provided with insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200227128U CN201355049Y (en) | 2009-02-26 | 2009-02-26 | Hot-air furnace air and gas double preheating all-welded plate-type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200227128U CN201355049Y (en) | 2009-02-26 | 2009-02-26 | Hot-air furnace air and gas double preheating all-welded plate-type heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN201355049Y true CN201355049Y (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009200227128U Expired - Fee Related CN201355049Y (en) | 2009-02-26 | 2009-02-26 | Hot-air furnace air and gas double preheating all-welded plate-type heat exchanger |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032833A (en) * | 2010-12-28 | 2011-04-27 | 无锡迈鑫科技实业有限公司 | Double-flow fin type heat exchanger |
| CN102425964A (en) * | 2011-11-07 | 2012-04-25 | 太原理工大学 | Plate-type heat exchanger |
| CN103225972A (en) * | 2013-05-10 | 2013-07-31 | 山东理工大学 | Clapboard type gas-solid heat exchanger |
| CN103868094A (en) * | 2014-03-14 | 2014-06-18 | 福建省泉州市江南冷却器厂 | Plate-type air pre-heater and flue gas heat energy recovery system with plate-type air pre-heater |
| CN104567476A (en) * | 2015-01-05 | 2015-04-29 | 洛阳瑞昌石油化工设备有限公司 | Plate type air preheating device with adjusting function |
| CN105251648A (en) * | 2015-11-03 | 2016-01-20 | 太仓联洲机械设备有限公司 | Large dry type paint spraying chamber with energy recovery function |
| CN109971904A (en) * | 2017-11-02 | 2019-07-05 | 充爱军 | Metallurgy iron-smelting furnace preheating device |
| CN110982976A (en) * | 2020-01-06 | 2020-04-10 | 宝钢湛江钢铁有限公司 | Plate type gas-gas heat exchanger |
| CN112481438A (en) * | 2020-11-20 | 2021-03-12 | 山东旺泰科技有限公司 | Blast furnace hot blast stove double-preheating system with low-temperature corrosion resistant core |
-
2009
- 2009-02-26 CN CNU2009200227128U patent/CN201355049Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032833A (en) * | 2010-12-28 | 2011-04-27 | 无锡迈鑫科技实业有限公司 | Double-flow fin type heat exchanger |
| CN102425964A (en) * | 2011-11-07 | 2012-04-25 | 太原理工大学 | Plate-type heat exchanger |
| CN103225972A (en) * | 2013-05-10 | 2013-07-31 | 山东理工大学 | Clapboard type gas-solid heat exchanger |
| CN103868094A (en) * | 2014-03-14 | 2014-06-18 | 福建省泉州市江南冷却器厂 | Plate-type air pre-heater and flue gas heat energy recovery system with plate-type air pre-heater |
| CN104567476A (en) * | 2015-01-05 | 2015-04-29 | 洛阳瑞昌石油化工设备有限公司 | Plate type air preheating device with adjusting function |
| CN105251648A (en) * | 2015-11-03 | 2016-01-20 | 太仓联洲机械设备有限公司 | Large dry type paint spraying chamber with energy recovery function |
| CN109971904A (en) * | 2017-11-02 | 2019-07-05 | 充爱军 | Metallurgy iron-smelting furnace preheating device |
| CN110982976A (en) * | 2020-01-06 | 2020-04-10 | 宝钢湛江钢铁有限公司 | Plate type gas-gas heat exchanger |
| CN112481438A (en) * | 2020-11-20 | 2021-03-12 | 山东旺泰科技有限公司 | Blast furnace hot blast stove double-preheating system with low-temperature corrosion resistant core |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20170226 |