CN201355050Y - Bidirectional double-fin cast slab type air preheater - Google Patents
Bidirectional double-fin cast slab type air preheater Download PDFInfo
- Publication number
- CN201355050Y CN201355050Y CNU2009200065320U CN200920006532U CN201355050Y CN 201355050 Y CN201355050 Y CN 201355050Y CN U2009200065320 U CNU2009200065320 U CN U2009200065320U CN 200920006532 U CN200920006532 U CN 200920006532U CN 201355050 Y CN201355050 Y CN 201355050Y
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- heat transfer
- transfer plate
- flange
- framework
- thermal conductor
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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 discloses a bidirectional double-fin cast slab type air preheater, which comprises a frame, a heat carrier, screw bolts and nuts, sealing packing materials, air channels and flue gas channels, wherein the frame consists of flanges, and the heat carrier is composed of a plurality of heat transfer plates. Two surfaces of each heat transfer plate are provided with a plurality of fins cast discontinuously, flanging edges bent in different directions are arranged on the periphery of each heat transfer plate, a plurality of heat transfer plates are parallelly overlapped to form the heat carrier, each two heat transfer plates are mutually closed to form one flue gas channel or one air channel, the heat carrier is arranged in the frame consisting of the flanges, sealing plates are mounted on the front surface and the back surface of the frame, the sealing packing materials are filled at the joint position of each two heat transfer plates and the connection positions of the heat carrier, the flanges and the sealing plates, the flue gas channels are disposed on the upper surface and the lower surface of each flange, and the air channels are arranged on the left surface and the right surface of each flange. The bidirectional double-fin cast slab type air preheater can be widely applied to the flue gas waste heat recycle of various heating furnaces, air heating furnaces, boilers and the like.
Description
Technical field
The utility model relates to a kind of two-way twin fin cast sheet regenerative air heater, relates in particular to a kind of air preheater that the flue gas waste heat recovery of various heating furnaces, hot-blast stove, boiler etc. is utilized.
Background technology
At present, domestic situation requires various heating furnaces, hot-blast stove, boiler etc. to cut down the consumption of energy, and lowers exhaust gas temperature.Want to achieve the above object, the most direct, one of the simplest method is to adopt air preheater to reclaim waste heat in the flue gas, thereby can reach the exhaust gas temperature that energy savings has reduced heating furnace again.Air preheater is generally adopted in the flue gas waste heat recovery system of all kinds of boilers such as petrochemical industry tubular heater, metallurgical industrial furnace, power plant as energy-saving equipment.Air preheater also can be applicable to printing and dyeing, and grain and other are used for the flue gas waste heat recovery system of desiccant hot-blast stove.The air preheater that six the seventies adopt based on bundled tube, the 80s and 90s with forms such as heat pipe-types.Bundled tube air preheater of using morely at present and the ubiquitous problem of heat pipe preheater are: when exhaust gas temperature is low (for example less than below 160 ℃), the heat-transfer pipe tube wall temperature that is positioned at smoke outlet is easy to be lower than the acid dew-point temperature of flue gas, cause serious low-temperature flue gas acid dew piont corrosion, life-span is generally shorter, and short may only have some months.When exhaust gas temperature is higher than 350 ℃, can produce heat-transfer pipe fin dust stratification, corroded by the corrosive dusty gas of being with of sulfuric acid vapor, can produce problems such as high temperature booster.
Summary of the invention
The purpose of this utility model provides the two-way twin fin cast sheet regenerative air heater that a kind of flue gas waste heat recovery that is widely used in various heating furnaces, hot-blast stove, boiler etc. utilizes, this preheater has that volume is little, heat transfer property is high, anti-dew point corrosion, anti-washing away, high temperature resistant, simple in structure, compact, use flexibly, be difficult for dust stratification, the advantage of long service life etc.
The technical solution of the utility model is: a kind of two-way twin fin cast sheet regenerative air heater, thermal conductor, bolt and nut, airtight and watertight padding, air duct, exhaust gases passes that it includes framework that flange constitutes, is made up of the polylith heat transfer plate.Be characterized in: heat transfer plate one side has many first strip fins that are interrupted casting.The heat transfer plate opposite side has many second strip fins that are interrupted casting.The second strip fin and the first strip fin hold the vertical direction setting.Each strip fin all be arranged in parallel with the heat transfer plate sideline.The both sides that heat transfer plate parallels are to constituting first flange with the one side bending, and the both sides in addition that heat transfer plate parallels constitute second flange to the another side bending.Be provided with bolt hole on first flange and second flange.The parallel formation thermal conductor that is stacked together of polylith heat transfer plate, its mode of stacking is: first flange on two heat transfer plates interlocks in twos and is contained in the bolt hole by bolt and nut two spiral-locks heat transfer plate is together tightened together, and second flange on two heat transfer plates interlocks in twos and is contained in the bolt hole by bolt and nut two spiral-locks heat transfer plate is together tightened together.The continuous as stated above spiral-lock of polylith heat transfer plate is constituted thermal conductor together.The passage that formation communicates up and down and front and back communicate between this spiral-lock heat transfer plate together.All be filled with airtight and watertight padding between each flange that interlocks in twos.Thermal conductor is contained in the framework that is made of flange, and the heat transfer plate of thermal conductor surrounding is connected with framework by bolt and nut with the framework connection.All use bolted structure between this heat transfer plate and between thermal conductor and the framework, make the preheater globality of formation and overall tightness all fine.The two sides is fixed with sealing plate before and after the framework.Thermal conductor and framework and sealing plate connection all are filled with airtight and watertight padding.The framework upper and lower faces is equipped with exhaust gases passes by flange, and air duct is equipped with by flange in the left and right two sides of framework.
Heat transfer plate is with the moulding of ready made mould one-step casting.
Heat transfer plate selects for use any material in spheroidal graphite cast-iron or cast steel or rare earth alloy steel or austenite abrasion-proof steel or the austenitic heat-resistance steel to be made with a cast molding mode.
The two-way twin fin cast sheet regenerative air heater that provides a kind of flue gas waste heat recovery that is widely used in various heating furnaces, hot-blast stove, boiler etc. to utilize is provided, this preheater has that volume is little, heat transfer property is high, anti-dew point corrosion, anti-ly wash away, high temperature resistant, simple in structure, compact, use advantage flexible, that be difficult for dust stratification, long service life etc.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model thermal conductor.
Fig. 3 is the structural representation that two heat transfer plates snap together.
Among the figure, 1, air duct, 2, thermal conductor, 3, flange, 4, framework, 5, bolt hole, 6, bolt and nut, 7, exhaust gases passes, 8, the first strip fin, 9, the second strip fin, 10, airtight and watertight padding, 11, heat transfer plate, 12, first flange, 13, second flange, 14, sealing plate.
The specific embodiment
Embodiment shown in each figure is as follows: a kind of two-way twin fin cast sheet regenerative air heater, thermal conductor 2, bolt and nut 6, airtight and watertight padding 10, air duct 1, exhaust gases passes 7 that it includes framework 4 that flange 3 constitutes, is made up of polylith heat transfer plate 11.Be characterized in: heat transfer plate 2 one sides have many first strip fins 8 that are interrupted casting.Heat transfer plate 11 opposite sides have many second strip fins 9 that are interrupted casting.The second strip fin 9 and the first strip fin 8 hold the vertical direction setting.Each strip fin 8,9 all be arranged in parallel with heat transfer plate 11 sidelines.The both sides that heat transfer plate 11 parallels are to constituting first flange 12 with the one side bending, and the both sides in addition that heat transfer plate 11 parallels constitute second flange 13 to the another side bending.Be provided with bolt hole 5 on first flange 12 and second flange 13.The heat transfer plate of this preheater is to form with the mould one-step casting.Polylith heat transfer plate 11 parallel being stacked together constitute thermal conductor 2, its mode of stacking is: first flange 12 on two heat transfer plates 11 interlocks in twos and is contained in the bolt hole 5 by bolt and nut 6 two spiral-locks heat transfer plate 11 is together tightened together, and second flange 13 on two heat transfer plates 11 interlocks in twos and is contained in the bolt hole 5 by bolt and nut 6 two spiral-locks heat transfer plate 11 is together tightened together.The continuous as stated above spiral-lock of polylith heat transfer plate 11 is constituted thermal conductor 2 together.The passage that formation communicates up and down and front and back communicate between this spiral-lock heat transfer plate 11 together.All be filled with airtight and watertight padding 10 between each flange 12,13 that interlocks in twos.Thermal conductor 2 is contained in the framework 4 that is made of flange 3, and the heat transfer plate 11 of thermal conductor 2 surroundings is connected with framework 4 by bolt and nut 6 with framework 4 connections.All be connected between this heat transfer plate and between thermal conductor and the framework, make the preheater globality of formation and whole seal all fine with bolt.Two sides, framework 4 front and back is fixed with sealing plate 14.Thermal conductor 2 all is filled with airtight and watertight padding 10 with framework 4 and sealing plate 14 connections.Framework 4 upper and lower faces are equipped with exhaust gases passes 7 by flange 3, and air duct 1 is equipped with by flange 3 in framework 4 left and right two sides.
The moulding of the ready made mould one-step casting of heat transfer plate 11 usefulness.
Claims (3)
1, a kind of two-way twin fin cast sheet regenerative air heater, it includes the framework that flange constitutes, the thermal conductor of forming by the polylith heat transfer plate, bolt and nut, airtight and watertight padding, air duct, exhaust gases passes, it is characterized in that: heat transfer plate one side has many first strip fins that are interrupted casting, the heat transfer plate opposite side has many second strip fins that are interrupted casting, the second strip fin and the first strip fin hold the vertical direction setting, each strip fin all be arranged in parallel with the heat transfer plate sideline, the both sides that heat transfer plate parallels are to constituting first flange with the one side bending, the both sides in addition that heat transfer plate parallels constitute second flange to the another side bending, be provided with bolt hole on first flange and second flange, the parallel formation thermal conductor that is stacked together of polylith heat transfer plate, its mode of stacking is: first flange on two heat transfer plates interlocks in twos and is contained in the bolt hole by bolt and nut two spiral-locks heat transfer plate is together tightened together, second flange on two heat transfer plates interlocks in twos and is contained in the bolt hole by bolt and nut two spiral-locks heat transfer plate is together tightened together, the continuous as stated above spiral-lock of polylith heat transfer plate is constituted thermal conductor together, the passage that formation communicates up and down and front and back communicate between this spiral-lock heat transfer plate together, all be filled with airtight and watertight padding between each flange that interlocks in twos, thermal conductor is contained in the framework that is made of flange, the heat transfer plate of thermal conductor surrounding is connected with framework by bolt and nut with the framework connection, the two sides is fixed with sealing plate before and after the framework, thermal conductor and framework and sealing plate connection all are filled with airtight and watertight padding, on the framework, exhaust gases passes is equipped with by flange in following two sides, a framework left side, air duct is equipped with by flange in right two sides.
2, a kind of two-way twin fin cast sheet regenerative air heater according to claim 1 is characterized in that: heat transfer plate is with the moulding of ready made mould one-step casting.
3, a kind of two-way twin fin cast sheet regenerative air heater according to claim 1 is characterized in that: heat transfer plate selects for use any material in spheroidal graphite cast-iron or cast steel or rare earth alloy steel or austenite abrasion-proof steel or the austenitic heat-resistance steel to be made with a cast molding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200065320U CN201355050Y (en) | 2009-02-27 | 2009-02-27 | Bidirectional double-fin cast slab type air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200065320U CN201355050Y (en) | 2009-02-27 | 2009-02-27 | Bidirectional double-fin cast slab type air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201355050Y true CN201355050Y (en) | 2009-12-02 |
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ID=41411391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200065320U Expired - Lifetime CN201355050Y (en) | 2009-02-27 | 2009-02-27 | Bidirectional double-fin cast slab type air preheater |
Country Status (1)
| Country | Link |
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| CN (1) | CN201355050Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155745A (en) * | 2011-04-22 | 2011-08-17 | 茂名重力石化机械制造有限公司 | Cast iron air preheater |
| CN102313294A (en) * | 2011-07-29 | 2012-01-11 | 茂名重力石化机械制造有限公司 | Self-closed integrally cast air preheater |
| 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 |
-
2009
- 2009-02-27 CN CNU2009200065320U patent/CN201355050Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155745A (en) * | 2011-04-22 | 2011-08-17 | 茂名重力石化机械制造有限公司 | Cast iron air preheater |
| CN102155745B (en) * | 2011-04-22 | 2012-07-25 | 茂名重力石化机械制造有限公司 | Cast iron air preheater |
| CN102313294A (en) * | 2011-07-29 | 2012-01-11 | 茂名重力石化机械制造有限公司 | Self-closed integrally cast air preheater |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091202 |