CN102330994A - Rotary heat accumulating type heat exchanger - Google Patents
Rotary heat accumulating type heat exchanger Download PDFInfo
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- CN102330994A CN102330994A CN201110264609A CN201110264609A CN102330994A CN 102330994 A CN102330994 A CN 102330994A CN 201110264609 A CN201110264609 A CN 201110264609A CN 201110264609 A CN201110264609 A CN 201110264609A CN 102330994 A CN102330994 A CN 102330994A
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- current divider
- air chamber
- heat
- heat storage
- bellows
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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
-
- 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
Abstract
The invention discloses a rotary heat accumulating type heat exchanger, which comprises a heat accumulating body (10), a rotating shaft (4) and disk rotary valves, wherein the rotating shaft movably penetrates through the heat accumulating body, two ends of the heat accumulating body are respectively provided with a cold air box (2) and a hot air box (21), the cold air box is provided with a cold air waste chamber (17) and a combustion air chamber (18), the hot air box is provided with a hot air waste chamber (19) and a high-temperature air chamber (20), the cold air box and the hot air box are internally provided with the disk rotary valves, each disk rotary valve comprises a radial current divider (8) provided with inner current division holes (16) and outer current division holes (15) at intervals, and a circumferential current divider (13); and a valve seat is fixedly arranged on the rotating shaft between the radial current divider and the circumferential current divider. According to the invention, the heat efficiency can be improved to above 90 percent, fuel consumption can be reduced, operation cost of an industrial furnace is reduced, and the quality of combustion air is improved. The rotary heat accumulating type heat exchanger has the advantages of compact structure, stable and reliable use, convenience for installation and maintenance, and long service life.
Description
Technical field
The present invention relates to industrial heating furnaces such as boiler, especially relate to the heat exchanger of high-temperature discharge gas.
Background technology
As everyone knows, industrial heating furnace all can give off high-temp waste gas like heating furnaces such as boiler, industrial furnace, incinerator, drying ovens; This EGT is higher; Can produce heat, if fully recycle, one can fuel savings and the reduction expense; Two reduce fuel consumption, reduce pollutant emission.Therefore industrial high temperature gas is made full use of heat exchanger heats combustion air with high-temp waste gas as thermal source, thereby capable of saving fuel.At present, though the kind of heat exchanger is also many, the main kind of heat exchanger mainly is a metal heat exchanger; And metal heat exchanger mostly adopts structures such as U-shaped pipe, fin to carry out heat exchange; Metal heat exchanger is complex structure not only, makes trouble, and cost of investment is high; And the thermal efficiency is also not high, has only 30-50% usually.The another one shortcoming of metal heat exchanger be exactly metal heated because of heat erosion or dew point corrosion, service life is shorter.
Summary of the invention
To the heat exchanger effectiveness of high temperature discharge waste gas in the above-mentioned existing technology not high with short problem in service life, the invention provides a kind of corrosion-resistant, and the high heat accumulating of revolution type heat exchanger of the thermal efficiency.
The technical scheme that the technical problem that the present invention will solve is taked is: said heat accumulating of revolution type heat exchanger comprises heat storage; Rotating shaft and disc type changeover valve; Said heat storage upper end is the hot junction for cold junction, lower end, and heat storage is passed in said rotating shaft activity, is respectively arranged with cold wind bellows and hot blast bellows on said cold junction and the hot junction; Said cold wind bellows have cold wind exhaust air chamber and combustion air chamber, and the cold wind exhaust air chamber links to each other with waste gas outlet, the combustion air chamber links to each other with air intlet; Said hot blast bellows have hot blast exhaust air chamber and high temperature air chamber; The hot blast exhaust air chamber links to each other with exhaust gas inlet; The high temperature air chamber links to each other with air outlet slit; In cold wind bellows and hot blast bellows, be provided with the disc type changeover valve; Said disc type changeover valve comprises radially current divider, circumferential current divider and valve seat; Said radially current divider be circular with circumferential current divider and be arranged at intervals with in tap hole and external shunt hole, said valve seat is fixedly installed on radially in current divider and the circumferential rotating shaft between the current divider, said valve seat can make external shunt hole and the corresponding connection of difference of interior tap hole on external shunt hole and interior tap hole and the circumferential current divider on the current divider radially with the rotating shaft rotation and seal.
Be respectively arranged with tap hole and external shunt hole in the 8-12 on radially current divider according to the invention and the circumferential current divider, thereby can heat storage be divided into 8-12 regenerator of annular array, each regenerator is corresponding with an interior tap hole and external shunt hole.
Said cold wind bellows and hot blast bellows are formed by inner cover, intermediate cap and outer cover.
The course of work of the present invention, being divided into 8 regenerator with heat storage is that example describes: each regenerator is a work period (1/8 cycle), and wherein continuous three cycles (3/8) are the accumulation of heat cycle; In this 3/8 cycle, high-temp waste gas gets into hot blast exhaust air chamber 19 from exhaust gas inlet 12 through external shunt hole 15, gets in the heat storage from the hot blast exhaust air chamber to begin accumulation of heat again; After the accumulation of heat, rotating shaft 1/8 cycle of rotating again gets into the phase buffer standby, and rotating shaft continues to rotate for 3/8 cycle again; Meanwhile, the combustion air that gets into from air intlet 5 gets into combustion air chamber 18, gets in the heat storage from the combustion air chamber through interior tap hole 16 again; After the heat storage of the accumulation of heat combustion air interior with getting into heat storage carries out sufficient heat exchange; 1/8 cycle of rotating again gets into phase buffer, accomplishes the once circulation of 360 degree, so circulation; Can constantly make the high-temp waste gas temperature be declined to become low temperature waste gas, low temperature waste gas drains in the atmosphere through external shunt hole entering cold wind exhaust air chamber 17 from waste gas outlet 1 again or carries out other processing again; And the combustion air temperature rising becomes the high temperature combustion air, and the high temperature combustion air drains into the industrial furnace hot bellows through interior tap hole entering high temperature air chambers 20 16 from air outlet slit 11 again and is used for burning.Said heat accumulating of revolution type heat exchanger is after work a period of time; Should stop heat exchange work and clean the heat storage inner chamber, guaranteeing heat exchange effect, during cleaning with fresh air; Close exhaust gas inlet earlier; Another import from waste gas outlet feeds fresh air, and air gets in the heat storage through the purge hole on the valve seat 22 and cleans, and the air after the cleaning is discharged from another outlet on the exhaust gas inlet through the rinse bath 23 on the valve seat.In order to improve heat exchanger effectiveness, the mode that the present invention on one side adopts normal operation on one side to clean is simultaneously cleaned heat storage, thereby can save the independent cleaning time, the raising heat exchanger effectiveness.The present invention makes full use of the heat exchange phase buffer for this reason; In phase buffer; Radially external shunt hole and the sealing of interior tap hole on current divider and the circumferential current divider realizes the cleaning to heat storage and make to connect to current divider and circumferential current divider through the purge hole, and another import feeding fresh air in phase buffer from the waste gas outlet 1 also carries out purge through the purge hole depended on pressure difference on the valve seat to the waste gas that remains in heat storage; Waste gas behind the purge discharges from another outlet on the exhaust gas inlet 12 through the purge groove on the valve seat; Reach the purpose that the operation of heat exchanger one edge work is cleaned heat storage simultaneously on one side, form heat release, buffering; Heat absorption, the technical process circulating working mode of purge.
The present invention compares with existing metal heat exchanger has following characteristics:
1, adopt the heat exchange of the continuous transformation airflow direction of the strong and buffer mode of heat storage capacity, the thermal efficiency can be brought up to more than 90%, and its thermal efficiency is more than the twice of the metal heat exchanger thermal efficiency; The combustion air heat absorption is many; Temperature is high, can reduce fuel consumption, improves the industrial furnace work; Reduce industrial furnace operating cost
2, adopt this device can not only improve heat exchanger effectiveness greatly; And in heat exchange simultaneously, can carry out purge to the high-temp waste gas that remains in heat storage, reduce waste gas and sneak into combustion air; Improve the degree of purity of combustion air; 3, alumina-based ceramic heat storage heat-and corrosion-resistant property is outstanding, long service life
4, ceramic heat storage body is continuously slowly in heat release, and buffering is absorbed heat, and circulates in purge and the buffering operating mode, and continuous with this duty, pressure oscillation is minimum, does not influence the operate as normal of industrial furnace,
5, compact conformation of the present invention uses reliable and stablely, convenient for installation and maintenance, does not influence other process equipment work.
Description of drawings
Fig. 1 is a main sectional structure sketch map of the present invention,
Fig. 2 is A-A sectional structure sketch map of Fig. 1,
Fig. 3 is B-B sectional structure sketch map of Fig. 1,
Fig. 4 is C-C sectional structure sketch map of Fig. 1,
Fig. 5 is D-D sectional structure sketch map of Fig. 1.
The specific embodiment
In Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, Fig. 2 representes heat storage 10 cross sections, and Fig. 3 representes circumferential current divider 13 cross sections, and Fig. 4 representes valve seat 9 cross sections of cold junction, and Fig. 5 representes valve seat 9 cross sections in hot junction.Said heat accumulating of revolution type heat exchanger comprises heat storage 10, rotating shaft 4 and disc type changeover valve, the heat storage that said heat storage 10 is made for ceramic honey comb; Certainly the manufacturing of the most handy alumina base ceramic honey comb of heat storage forms, and that honeycomb ceramic heat accumulator has is high temperature resistant, acid and alkali-resistance and corrosion and the big characteristics of specific area, the heat storage side of the being bodily form; Also can cylindrical or other shape; The heat storage upper end is the hot junction for cold junction, lower end, and heat storage is passed in said rotating shaft 4 activities, and the rotating shaft two ends link to each other with hot blast bellows movable sealing with the cold wind bellows respectively; Rotating shaft one end is connected with synchronous universal axle (not drawing among the figure); The synchronous universal axle is driven by reducing motor, and said heat storage is divided into eight and waits subregion, and promptly heat storage has eight regenerator; Wherein continuous three regenerator are the accumulation of heat phase; Relative other three are the heat release phase, and other two relative regenerator are purge and standby, seal respectively on said cold junction and the hot junction and are provided with cold wind bellows 2 and hot blast bellows 21; Said cold wind bellows and hot blast bellows are provided with one heart to make by columnar inner cover 3, intermediate cap 6 and the outer cover 7 of height such as grade and form; In, the centre links to each other with the hot blast bellows with the cold wind bellows respectively with outer cover one end, the other end links to each other with current divider radially, said cold wind bellows have cold wind exhaust air chamber 17 and combustion air chamber 18, said cold wind exhaust air chamber links to each other with waste gas outlet 1, said combustion air chamber links to each other with air intlet 5; Said hot blast bellows have hot blast exhaust air chamber 19 and high temperature air chamber 20; Said hot blast exhaust air chamber links to each other with exhaust gas inlet 12; Said high temperature air chamber links to each other with air outlet slit 11; In cold wind bellows and hot blast bellows, be provided with the disc type changeover valve, said disc type changeover valve comprises radially current divider 8, circumferentially current divider 13 and valve seat 9, and said radially current divider and circumferential current divider are the inside and outside annulus that is eight equal parts and form, be arranged at intervals with eight interior tap holes 16 and eight external shunt holes 15 respectively on annulus and the outer toroid in wherein; It is fan-shaped that inside and outside tap hole all is; At current divider radially and circumferentially be provided with valve seat 9 between the current divider, said valve seat is fixed in the rotating shaft 4, and valve seat 9 upper surfaces contact with current divider 8 bottom surfaces radially; The valve seat lower surface contacts with circumferential current divider 13 upper surfaces; Valve seat can rotate with rotating shaft synchronously, and said valve seat has three continuous external shunt hole 15 and three continuous interior tap holes 16 (like Fig. 4 or shown in Figure 5) that the position is relative, and three external shunt hole sites on the valve seat and size are identical with external shunt hole size and position on the current divider circumferentially or radially; Three interior tap hole positions on the valve seat and size are big or small identical with the position with interior tap hole on the current divider circumferentially or radially; When heat storage is eight equal parts; Wherein three external shunt holes are the heat storage accumulation of heat cycle; Three interior tap holes are the heat storage heat release cycle, and other two cycles are that the inferior of heat storage washed and the standby cycle, on the noncontact face at circumferential current divider and heat storage two ends, sealant 14 are set preferably; The circumferential current divider of eight equal parts is divided into eight regenerator with heat storage; Certainly also can heat storage be divided into 10 five equilibriums, 12 five equilibriums and other five equilibrium according to the high-temperature gas situation, the period allocated of accumulation of heat, heat release and purge standby also can determine as the case may be, but keep at least a purge and a standby cycle.In order to improve heat exchanger effectiveness; Another import (not marking the figure) in phase buffer from waste gas outlet feeds fresh air and through the purge hole depended on pressure difference on the valve seat waste gas that remains in heat storage is carried out purge; Waste gas behind the purge discharges through another outlet (not marking the figure) on exhaust gas inlet of the purge groove on the valve seat; Reach the purpose that the operation of heat exchanger one edge work is cleaned heat storage simultaneously on one side, form heat release, buffering; Heat absorption, the technical process circulating working mode of purge.Therefore the valve seat of the present invention's heat storage upper end (cold junction) is provided with purge hole 22, and the valve seat in heat storage lower end (hot junction) is provided with rinse bath 23.
Claims (4)
1. heat accumulating of revolution type heat exchanger; It comprises heat storage (10); Rotating shaft (4) and disc type changeover valve; Said heat storage upper end is the hot junction for cold junction, lower end, and it is characterized in that: heat storage is passed in said rotating shaft activity, and said cold junction and hot junction are respectively arranged with cold wind bellows (2) and hot blast bellows (21); Said cold wind bellows have cold wind exhaust air chamber (17) and combustion air chamber (18), and the cold wind exhaust air chamber links to each other with waste gas outlet (1), the combustion air chamber links to each other with air intlet (5); Said hot blast bellows have hot blast exhaust air chamber (19) and high temperature air chamber (20); The hot blast exhaust air chamber links to each other with exhaust gas inlet (12); The high temperature air chamber links to each other with air outlet slit (11); In cold wind bellows and hot blast bellows, be provided with the disc type changeover valve; Said disc type changeover valve comprises radially current divider (8), circumferential current divider (13) and valve seat (9); Said radially current divider is circular and is arranged at intervals with interior tap hole (16) and external shunt hole (15) with circumferential current divider, and said valve seat is fixedly installed on radially in current divider and the circumferential rotating shaft between the current divider, and said valve seat can make external shunt hole and the corresponding connection of difference of interior tap hole on external shunt hole and interior tap hole and the circumferential current divider on the current divider radially with the rotating shaft rotation and seal.
2. heat accumulating of revolution type heat exchanger according to claim 1 is characterized in that: the valve seat of heat storage upper end is provided with purge hole (22), and the valve seat of heat storage lower end is provided with rinse bath (23).
3. heat accumulating of revolution type heat exchanger according to claim 1 is characterized in that: said cold wind bellows and hot blast bellows are formed by the manufacturings of inner cover (3), intermediate cap (6) and outer cover (7).
4. according to claim 1 or 2 or 3 described heat accumulating of revolution type heat exchangers, it is characterized in that: on the noncontact face at circumferential current divider and heat storage two ends, sealant (14) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264609A CN102330994A (en) | 2011-09-08 | 2011-09-08 | Rotary heat accumulating type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264609A CN102330994A (en) | 2011-09-08 | 2011-09-08 | Rotary heat accumulating type heat exchanger |
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| Publication Number | Publication Date |
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| CN102330994A true CN102330994A (en) | 2012-01-25 |
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| CN201110264609A Pending CN102330994A (en) | 2011-09-08 | 2011-09-08 | Rotary heat accumulating type heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678970A (en) * | 2012-05-20 | 2012-09-19 | 陈敏东 | Rotary gas distribution valve |
| CN105378419A (en) * | 2013-07-12 | 2016-03-02 | 爱信精机株式会社 | Chemical thermal energy storage device |
| CN106989609A (en) * | 2017-04-28 | 2017-07-28 | 岳阳鑫特热能工程技术有限公司 | It is successively heat exchanged device |
| CN114623713A (en) * | 2022-02-25 | 2022-06-14 | 东南大学 | Rotary heat storage heat exchanger based on reversible chemical reaction thermal effect and heat storage method |
Citations (6)
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| IE39783L (en) * | 1973-03-28 | 1974-09-28 | Erie Dev Co | Rotary vacuum filter apparatus. |
| JP2008535650A (en) * | 2005-03-24 | 2008-09-04 | エンビオン、インコーポレイテッド | Odor and harmful gas treatment system using rotary regenerative heat exchanger and its apparatus |
| US7740026B2 (en) * | 2004-06-28 | 2010-06-22 | Taikisha Ltd. | Thermal storage type gas treating apparatus |
| CN101799247A (en) * | 2010-03-19 | 2010-08-11 | 浙江大学 | Heat exchanger recovering waste heat of gas containing dust and viscous matter |
| CN201852131U (en) * | 2010-11-08 | 2011-06-01 | 吴道洪 | Rotary heat exchange device of heat accumulator |
| CN202229224U (en) * | 2011-09-08 | 2012-05-23 | 林杰 | Rotary heat accumulating type heat exchanger |
-
2011
- 2011-09-08 CN CN201110264609A patent/CN102330994A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE39783L (en) * | 1973-03-28 | 1974-09-28 | Erie Dev Co | Rotary vacuum filter apparatus. |
| US7740026B2 (en) * | 2004-06-28 | 2010-06-22 | Taikisha Ltd. | Thermal storage type gas treating apparatus |
| JP2008535650A (en) * | 2005-03-24 | 2008-09-04 | エンビオン、インコーポレイテッド | Odor and harmful gas treatment system using rotary regenerative heat exchanger and its apparatus |
| CN101799247A (en) * | 2010-03-19 | 2010-08-11 | 浙江大学 | Heat exchanger recovering waste heat of gas containing dust and viscous matter |
| CN201852131U (en) * | 2010-11-08 | 2011-06-01 | 吴道洪 | Rotary heat exchange device of heat accumulator |
| CN202229224U (en) * | 2011-09-08 | 2012-05-23 | 林杰 | Rotary heat accumulating type heat exchanger |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678970A (en) * | 2012-05-20 | 2012-09-19 | 陈敏东 | Rotary gas distribution valve |
| CN102678970B (en) * | 2012-05-20 | 2013-11-06 | 陈敏东 | Rotary gas distribution valve |
| CN105378419A (en) * | 2013-07-12 | 2016-03-02 | 爱信精机株式会社 | Chemical thermal energy storage device |
| CN105378419B (en) * | 2013-07-12 | 2017-08-29 | 爱信精机株式会社 | Chemical heat storage device |
| CN106989609A (en) * | 2017-04-28 | 2017-07-28 | 岳阳鑫特热能工程技术有限公司 | It is successively heat exchanged device |
| CN114623713A (en) * | 2022-02-25 | 2022-06-14 | 东南大学 | Rotary heat storage heat exchanger based on reversible chemical reaction thermal effect and heat storage method |
| CN114623713B (en) * | 2022-02-25 | 2024-02-02 | 东南大学 | Rotary heat storage heat exchanger based on reversible chemical reaction thermal effect and heat storage method |
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Application publication date: 20120125 |