CN102829485A - Horizontal heat accumulating type efficient heat exchanger - Google Patents
Horizontal heat accumulating type efficient heat exchanger Download PDFInfo
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- CN102829485A CN102829485A CN2012103579765A CN201210357976A CN102829485A CN 102829485 A CN102829485 A CN 102829485A CN 2012103579765 A CN2012103579765 A CN 2012103579765A CN 201210357976 A CN201210357976 A CN 201210357976A CN 102829485 A CN102829485 A CN 102829485A
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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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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The invention discloses a horizontal heat accumulating type efficient heat exchanger. The inner wall of a horizontal cylindrical housing (20) is provided with a heat insulation layer (14); the inside of the horizontal cylindrical housing (20) is separated by a separating plate to form six identical axial cavities, namely a first cavity (1), a second cavity (2), a third cavity (3), a fourth cavity (4), a fifth cavity (5) and a sixth cavity (6); each of the axial cavities is filled with a heat accumulating body; a rotating shaft (11) is provided with two rotors (12), which are correspondingly connected with the two ends of the axial cavities respectively; each rotor (12) is provided with three air jackets (19), which are separately arranged in the circumferential direction; and the rotors divide a passage into two parts. According to the horizontal heat accumulating type efficient heat exchanger disclosed by the invention, a heat accumulating chamber with large weight is fixed, the afterheat of smoke is extremely recovered, and the heat efficiency of a system is obviously improved.
Description
Technical field
The present invention relates to a kind of regenerative heat-exchange device, utilize the heat of high-temperature flue gas in the various industrial furnace flues to come warm-up combustion-supporting air.A cylindrical shell and two ends of filling up heat storage have realized that by two groups of air-casing devices of servomotor drive burner provides hot blast and the heat regenerator of discharging cooled flue gas continuously.
Background technology
The die is cast with shortage for the anxiety of China's energy, had a strong impact on expanding economy.China's industrial furnace energy utilization rate is generally on the low side at present; Some forge furnaces are arranged now, because technological operation, most of EGT of coming out of the stove that forges with heating furnace all is higher than 1000 ℃; Because of not being fit to the long-term efficient waste-heat recovery device that uses; The waste gas heat loss is very big, so that the thermal efficiency of stove is merely 5%～10%, thereby causes the significant wastage of fuel.In Iron and Steel Enterprises in China, the air preheater majority that generally adopts on the Thermal Equipment is the common metal heat exchanger, and long-term serviceability temperature is at 700～800 ℃, and air preheating temperature is 400～500 ℃.Heat exchanger efficiency is about 50%～60%
[1]A large amount of fume afterheats are not fully utilized, and the burn up level of Thermal Equipment generally is higher than external peers will.
Around the further energy-saving and cost-reducing problem of heating furnace, domestic thermal technology circle had once carried out a large amount of research and exploration work.Wherein, " waste heat is complete in reclaiming
[2]" and " three high one is low
[3]" viewpoint once caused thermal technology's circle common concern." waste heat is complete in reclaiming " is meant: use high-performance heat exchanger to drop to EGT below 200 ℃, strengthen the stove thermal insulation simultaneously, to reduce all other heat loss of stove; " three high one is low " is meant: stove is implemented " high furnace temperature ", " high cigarette temperature " operation, simultaneously flue gas is carried out " efficient waste heat recovery " and on stove, used " low dark decay " material.These two kinds of imaginations have reflected the developing direction of the energy-conservation research of monomer Thermal Equipment to a certain extent.The precondition that it is achieved is must possess reliably efficient waste-heat recovery device is arranged.But suffer from the heat-exchange device that does not meet the demands fully, all can not realize well.
The novel energy-conserving technology of heat-accumulation type hot switching technology for rising the eighties in last century, the maximum characteristics of this technology are energy-efficient, average energy saving can improve 30% again on existing basis; Corresponding therewith high-temp combustion technology has not only improved the efficiency of combustion of fuel, and that has more effectively opened up low calorie fuels rationally utilizes approach
[4]The application of heat-accumulation type hot switching technology, its meaning is: not only saved fuel to the full extent, and reduced pollutant discharge amount, satisfied the strategic requirement of China's industrial sustainable development.The pottery heat exchanger comes out with the accumulation of heat form, and heat exchange form subsequently develops soon.Reason is that ceramic recuperator is high temperature resistant, and air preheating temperature is high, and it is remarkable to use the back energy-saving effect, when flue-gas temperature is 1000～1250 ℃, and can be air preheat to 900～1000 ℃.Adopt heat exchanger, the exhaust gas temperature of burner hearth is the material restriction of heated exchanger no longer
[5], can realize the high temperature smoke evacuation, correspondingly the high temperature preheating of combustion air becomes possibility.
[1] Zhang Fabo. thermal process emulation of filling ball regenerator and optimal design. Beijing: University of Science & Technology, Beijing, 2007.
[2] Hu Yanbang, the efficient heating stove of combustion blast furnace gas. the metallurgical energy, 1988,7 (6): 9-16.
[3] Zhang Xianyue etc. is about the discussion of industrial heating furnace developing direction. industrial furnace, and 1990,2,3.
Li Chaoxiang. the application of heat-accumulation type hot switching technology and prospect [J]. the metallurgical energy, 2004,23 (2): 45～49.
Summary of the invention
Technical problem to be solved by this invention provides a kind of big regenerator transfixion of weight that makes, and the limit reclaims the waste heat of flue gas, significantly improves the horizontal heat-accumulated type high-efficiency heat exchanger of the thermal efficiency of system.
In order to solve the problems of the technologies described above; Horizontal heat-accumulated type high-efficiency heat exchanger provided by the invention; The inwall of horizontal circular cylindrical shell is provided with insulating; Described horizontal circular cylindrical shell inside is separated into six equal axial cavitys with dividing plate: first cavity, second cavity, the 3rd cavity, the 4th cavity, the 5th cavity and the 6th cavity; All be filled with heat storage in the described axial cavity; The two ends of described axial cavity are provided with the punching baffle plate and are used for fixing heat storage, and an end of described horizontal circular cylindrical shell is provided with the downtake pipe and first air inlet pipe, and the other end is provided with the second exhaust pipe and second air inlet pipe; Two ends are respectively equipped with a mozzle in described horizontal circular cylindrical shell; A mozzle is connected with described first air inlet pipe, and another described mozzle is connected with described second exhaust pipe, and described mozzle is equipped with the pore that is communicated with described horizontal circular cylindrical shell inner chamber; Be provided with by motor-operated rotating shaft in the described horizontal circular cylindrical shell; Be equipped with in the described rotating shaft two respectively with the rotor of the corresponding connection in the two ends of described axial cavity, each described rotor is provided with the air-casing of three circumferential alternate settings, the inside of described rotor three described air-casings when a phase place connects described downtake pipe, second air inlet pipe and three alternate described axial cavitys; Connect described mozzle and other three alternate described axial cavitys between three alternate described air-casings; 60 ° of described rotor rotations connect described downtake pipe, second air inlet pipe and other three alternate described axial cavitys in the inside of three described air-casings during to another phase place, and the described mozzle of connection and three alternate described axial cavitys are sealed by sealing device between described rotor, described air-casing and the described horizontal circular cylindrical shell between three alternate described air-casings.
The bottom of described horizontal circular cylindrical shell is mounted with can make described horizontal circular cylindrical shell inclination certain angle, be convenient to the hydraulic tilting device that heat storage is changed.
Described heat storage is divided into according to different flue gas qualities: Ceramic Balls and ceramic honeycomb body.
Described motor is a servomotor, and the rotation mode of described motor drives rotor is for swinging back and forth.
Described first air inlet pipe of flue gas and the described downtake pipe of air are located at the same end of described horizontal circular cylindrical shell.
Described punching baffle plate is fixed together convenient disassembly through bolt and described horizontal circular cylindrical shell.
Adopt the horizontal heat-accumulated type high-efficiency heat exchanger of technique scheme, rotor is divided into two parts to passage, and preceding half period flue gas gets into mozzle by first air inlet pipe and passes baffle plate entering one, three, five cavitys heating heat storage through pore entering rotor; Air gets into other passage by second air inlet pipe and passes the punching baffle plate and flow through that already heated heat storage absorbs heat in two, four, six cavitys; Cooled smoke is discharged by second exhaust pipe, and heated air gets into burner by downtake pipe hot blast is provided; Second cycle is when beginning; 60 ° of motor drives rotor rotations; At this moment flue gas gets into through flow through passage that air just now flows through of rotor from first air inlet pipe and gets into two, four, six cavitys and add by air cooled heat storage, and air gets into the other passage of flowing through by second air inlet pipe and gets into one, three, five cavitys and absorb the heat storage that flue gas heating is crossed; Cooled smoke is discharged by second exhaust pipe, and the air after the heating counts burner by downtake pipe, realizes providing continuously hot blast.
The horizontal circular cylindrical shell that fills up heat storage in the middle of this heat exchanger adopts is fixed; The rotor that servomotor through two ends drives very light weight realizes that cold and hot gas alternately realizes heat exchange through heat storage; The rotation mode that servomotor drives rotor is to swing back and forth; Because rotor quality is light, so can realize quick, light and handy switching; Avoided traditional with motor directly drive the power consumption that the accumulation of heat cylindrical shell rotates big, noise is arranged, regulate inflexible shortcoming; The rotation mode of this invention rotor has avoided on same direction, continuing to rotate the accumulated error that is caused like this for swinging back and forth.
The present invention is equipped with hydraulic tilting device in horizontal circular cylindrical shell bottom, is convenient to the replacing of heat storage; Because the import of flue gas and the outlet of air are at same end, each maintenance only needs to change the heat storage of temperature end.
Advantage of the present invention and good effect
1, a kind of new continuous regenerative heat-exchange is established device, and it adopts the rotor rotation of very light weight in the motor drives gas reversing arrangement, and realizes that into and out of tracheae and regenerative apparatus transfixion the cold fluid and hot fluid alternating current is through heat storage;
2, realize burner continuous heat supply wind, and discharged cooled smoke; Flue-gas temperature 1000～1200 ℃ it can be with air preheat to 900～1100 ℃, reduce about exhaust gas temperature to 200～300 ℃, reclaim smoke pre-heating 75～90%;
3, reversal valve operation is rapid, light, and the combustion air of preheating can be provided in switching-over continuously, overcome that traditional switching-over regenerator needs two cover burners simultaneously and when introducing burner hearth change big shortcoming;
4, the high temperature air of preheating can be directly to spray into burner hearth through burner combustion-supporting, so both improved the efficiency of combustion of system, reduced the discharging of pollutant again, energy-saving and cost-reducing, also improve environment simultaneously.
In sum, the present invention is a kind of big regenerator transfixion of weight that makes, and the limit reclaims the waste heat of flue gas, significantly improves the horizontal heat-accumulated type high-efficiency heat exchanger of the thermal efficiency of system.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a vertical view of the present invention.
Fig. 3 is along A-A line cut-away view among Fig. 1.
Fig. 4 is along D-D line cut-away view among Fig. 1.
Fig. 5 is the structural representation that changes.
Fig. 6 is a heat storage Ceramic Balls structural representation.
Fig. 7 is a heat storage ceramic honeycomb structure sketch map.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7; The inwall of horizontal circular cylindrical shell 20 is provided with insulating 14; Horizontal circular cylindrical shell 20 inside are separated into six equal axial cavitys with dividing plate: first cavity 1, second cavity 2, the 3rd cavity 3, the 4th cavity 4, the 5th cavity 5 and the 6th cavity 6; Axially all be filled with heat storage in the cavity, axially the two ends of cavity are provided with punching baffle plate 13 and are used for fixing heat storage, and heat storage is divided into according to different flue gas qualities: Ceramic Balls 21 and ceramic honeycomb body 18; Punching baffle plate 13 is fixed together convenient disassembly through bolt and horizontal circular cylindrical shell 20.One end of horizontal circular cylindrical shell 20 is provided with the downtake pipe 7 and first air inlet pipe 8, and the other end is provided with the second exhaust pipe 9 and second air inlet pipe 10, and first air inlet pipe 8 of flue gas and the downtake pipe 7 of air are located at horizontal circular cylindrical shell 20 same ends.Two ends are respectively equipped with a mozzle 15 in horizontal circular cylindrical shell 20; A mozzle is connected with first air inlet pipe 8; Another mozzle 15 is connected with second exhaust pipe 9; Mozzle 15 is equipped with the pore 16 that is communicated with horizontal circular cylindrical shell 20 inner chambers; Be provided with the rotating shaft 11 that drives by motor 17 in the horizontal circular cylindrical shell 20; Be equipped with in the rotating shaft 11 two respectively with the rotor 12 of the corresponding connection in the two ends of axial cavity; Motor 17 is a servomotor; Motor 17 drives the rotation mode of rotors 12 for swinging back and forth, and each rotor 12 is provided with the air-casing 19 of three circumferential alternate settings, and the inside of rotor 12 three air-casings 19 when a phase place connects downtake pipe 7, second air inlet pipe 10 and three the alternate axial cavitys--first cavity 1, the 3rd cavity 3 and the 5th cavity 5; Connect mozzle 15 and other three alternate axial cavity-second cavitys 2, the 4th cavity 4 and the 6th cavitys 6 between three alternate air-casings 19; 60 ° of rotor 12 rotations connect between downtake pipe 7, three alternate axial cavity-second cavitys 2 of second air inlet pipe 10 and other, the 4th cavity 4 and 6, three alternate air-casings 19 of the 6th cavity and connect mozzle 15 and three alternate axial cavity-first cavitys 1, the 3rd cavity 3 and the 5th cavitys 5 in the inside of three air-casings 19 during to another phase place, are sealed by sealing device between rotor 12, air-casing 19 and the horizontal circular cylindrical shell 20.The bottom of horizontal circular cylindrical shell 20 is mounted with can make described horizontal circular cylindrical shell 20 inclination certain angles, be convenient to the hydraulic means that heat storage is changed.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7; Rotor 12 is divided into two parts to passage; The flow direction of hot and cold air is a counter-flow arrangement, and preceding half period flue gas gets into mozzles 15 by first air inlet pipe 8 and gets into rotors 12 through pore 16 and between three alternate air-casings 19, pass punching baffle plate 13 and get into first cavity 1, the 3rd cavity 3, the 5th cavity 5 heating heat storages; Air passes punching baffle plate 13 by second air inlet pipe 10 and flows through that already heated heat storage absorbs heat in second cavity 2, the 4th cavity 4, the 6th cavity 6 through the inside of air-casing 19; Cooled smoke is discharged by second exhaust pipe 9, and heated air gets into burner by downtake pipe 7 hot blast is provided; Second cycle is when beginning; 60 ° of motor drives rotor rotations; At this moment flue gas gets between three alternate air-casings 19, flow through passage that air just now flows through of rotors 12 from first air inlet pipe 8 and gets into second cavity 2, the 4th cavity 4, the 6th cavity 6 and add by air cooled heat storage, and air gets into the other passage of flowing through by second air inlet pipe 10 and gets into first cavity 1, the 3rd cavity 3, the 5th cavity 5 and absorb the heat storage that flue gas heating are crossed; Cooled smoke is discharged by second exhaust pipe 9, and the air after the heating counts burner by downtake pipe 7, realizes providing continuously hot blast.
Claims (6)
1. horizontal heat-accumulated type high-efficiency heat exchanger; It is characterized in that: the inwall of horizontal circular cylindrical shell (20) is provided with insulating (14); Described horizontal circular cylindrical shell (20) is inner to be separated into six equal axial cavitys with dividing plate: first cavity (1), second cavity (2), the 3rd cavity (3), the 4th cavity (4), the 5th cavity (5) and the 6th cavity (6); All be filled with heat storage in the described axial cavity; The two ends of described axial cavity are provided with the punching baffle plate (13) that is used for fixing heat storage; One end of described horizontal circular cylindrical shell (20) is provided with downtake pipe (7) and first air inlet pipe (8); The other end is provided with second exhaust pipe (9) and second air inlet pipe (10); Two ends are respectively equipped with a mozzle (15) in described horizontal circular cylindrical shell (20); A mozzle is connected with described first air inlet pipe (8); Another described mozzle (15) is connected with described second exhaust pipe (9); Described mozzle (15) is equipped with the pore (16) that is communicated with described horizontal circular cylindrical shell (20) inner chamber; Be provided with the rotating shaft (11) that drives by motor (17) in the described horizontal circular cylindrical shell (20); Be equipped with in the described rotating shaft (11) two respectively with the rotor (12) of the corresponding connection in the two ends of described axial cavity, each described rotor (12) is provided with the air-casing (19) of three circumferential alternate settings, the inside of described rotor (12) three described air-casings (19) when a phase place connects described downtake pipe (7), second air inlet pipe (10) and three alternate described axial cavitys; Connect three alternate described axial cavitys of described mozzle (15) and other between three alternate described air-casings (19); The inside of 60 ° of described rotor (12) rotations, three described air-casings (19) during to another phase place connects described downtake pipe (7), three alternate described axial cavitys of second air inlet pipe (10) and other, connects described mozzle (15) and three alternate described axial cavitys between three alternate described air-casings (19), is sealed by sealing device between described rotor (12), described air-casing (19) and the described horizontal circular cylindrical shell (20).
2. horizontal heat-accumulated type high-efficiency heat exchanger according to claim 1 is characterized in that: the bottom of described horizontal circular cylindrical shell (20) is mounted with can make described horizontal circular cylindrical shell (20) inclination certain angle, be convenient to the hydraulic tilting device that heat storage is changed.
3. horizontal heat-accumulated type high-efficiency heat exchanger according to claim 1 and 2 is characterized in that: described heat storage is divided into according to different flue gas qualities: Ceramic Balls (21) and ceramic honeycomb body (18).
4. horizontal heat-accumulated type high-efficiency heat exchanger according to claim 1 and 2 is characterized in that: described motor (17) is a servomotor, and described motor (17) drives the rotation mode of rotor (12) for swinging back and forth.
5. horizontal heat-accumulated type high-efficiency heat exchanger according to claim 1 and 2 is characterized in that: described first air inlet pipe (8) of flue gas and the described downtake pipe (7) of air are located at the same end of described horizontal circular cylindrical shell (20).
6. horizontal heat-accumulated type high-efficiency heat exchanger according to claim 1 and 2 is characterized in that: described punching baffle plate (13) is fixed together convenient disassembly through bolt and described horizontal circular cylindrical shell (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210357976.5A CN102829485B (en) | 2012-09-24 | 2012-09-24 | Horizontal heat accumulating type efficient heat exchanger |
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| CN201210357976.5A CN102829485B (en) | 2012-09-24 | 2012-09-24 | Horizontal heat accumulating type efficient heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175824A (en) * | 2021-04-16 | 2021-07-27 | 河北科技大学 | Heat accumulating type heating furnace with one-side combustion function and using method thereof |
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| JPS62246698A (en) * | 1986-04-18 | 1987-10-27 | Sanyo Electric Co Ltd | Metal hydride container |
| JP2001304540A (en) * | 2000-04-21 | 2001-10-31 | Nippon Steel Corp | Rotary heat-exchanger |
| WO2006001437A1 (en) * | 2004-06-28 | 2006-01-05 | Taikisha Ltd. | Heat storage type gas processing apparatus |
| WO2008151700A1 (en) * | 2007-06-13 | 2008-12-18 | Pluggit International B.V. | Rotating heat exchanger and associated ventilation system |
| CN201177069Y (en) * | 2008-01-31 | 2009-01-07 | 李汉中 | Tail gas inlet rotary valve |
| CN201636871U (en) * | 2010-03-12 | 2010-11-17 | 吴道洪 | Heat accumulator rotating heat exchange device and industrial furnace |
| CN202229224U (en) * | 2011-09-08 | 2012-05-23 | 林杰 | Rotary heat accumulating type heat exchanger |
| CN202253729U (en) * | 2011-09-29 | 2012-05-30 | 岳阳钟鼎热工电磁科技有限公司 | Continuous heat accumulation type preheater sealing device |
| CN102645116A (en) * | 2012-04-27 | 2012-08-22 | 中南大学 | Continuous heat accumulating type heat exchanger |
-
2012
- 2012-09-24 CN CN201210357976.5A patent/CN102829485B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3985181A (en) * | 1972-11-22 | 1976-10-12 | Bennes Marrel, Zone Industrielle | Rotary heat exchanger, in particular for a gas turbine |
| JPS62246698A (en) * | 1986-04-18 | 1987-10-27 | Sanyo Electric Co Ltd | Metal hydride container |
| JP2001304540A (en) * | 2000-04-21 | 2001-10-31 | Nippon Steel Corp | Rotary heat-exchanger |
| WO2006001437A1 (en) * | 2004-06-28 | 2006-01-05 | Taikisha Ltd. | Heat storage type gas processing apparatus |
| WO2008151700A1 (en) * | 2007-06-13 | 2008-12-18 | Pluggit International B.V. | Rotating heat exchanger and associated ventilation system |
| CN201177069Y (en) * | 2008-01-31 | 2009-01-07 | 李汉中 | Tail gas inlet rotary valve |
| CN201636871U (en) * | 2010-03-12 | 2010-11-17 | 吴道洪 | Heat accumulator rotating heat exchange device and industrial furnace |
| CN202229224U (en) * | 2011-09-08 | 2012-05-23 | 林杰 | Rotary heat accumulating type heat exchanger |
| CN202253729U (en) * | 2011-09-29 | 2012-05-30 | 岳阳钟鼎热工电磁科技有限公司 | Continuous heat accumulation type preheater sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175824A (en) * | 2021-04-16 | 2021-07-27 | 河北科技大学 | Heat accumulating type heating furnace with one-side combustion function and using method thereof |
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| CN102829485B (en) | 2015-01-14 |
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