CN102829484B - A kind of suitching type heat-accumulated type high-efficiency heat exchanger - Google Patents
A kind of suitching type heat-accumulated type high-efficiency heat exchanger Download PDFInfo
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- CN102829484B CN102829484B CN201210357900.2A CN201210357900A CN102829484B CN 102829484 B CN102829484 B CN 102829484B CN 201210357900 A CN201210357900 A CN 201210357900A CN 102829484 B CN102829484 B CN 102829484B
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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 invention discloses a kind of suitching type heat-accumulated type high-efficiency heat exchanger, the inside of drum type brake housing (19) by dividing plate be divided into six equal in be all filled with the axial cavity of heat storage, drum type brake housing (19) is provided with the first tracheae (10) and the second tracheae (21) that are communicated with the two ends of three axial cavity respectively, drum type brake housing (19) is provided with the 3rd tracheae (9) and the 4th tracheae (20) that are communicated with the two ends of another three axial cavity respectively, first tracheae (10) and the 3rd tracheae (9) by the first gas reversing arrangement respectively with the first air inlet pipe (8) and downtake pipe (7) alternate communication, second tracheae (21) and the 4th described tracheae (20) by the second gas reversing arrangement respectively with the second air inlet pipe (13) and second exhaust pipe (12) alternate communication.The present invention is a kind of regenerator transfixion, realizes burner continuous heat supply wind and discharges cooled flue gas and suitching type heat-accumulated type high-efficiency heat exchanger.
Description
Technical field
The present invention relates to a kind of heat storage exchanging appts.
Background technology
The die is cast for anxiety and the shortage of China's energy, had a strong impact on expanding economy.In the heat treatment of industrial equipment, frequent produce the large quantity of exhaust gas with high thermal content, this when usually there is energy ezpenditure just good for the recovery of waste gas provides economic advantages.Current China industrial furnace energy utilization rate is generally on the low side, has now some forge furnaces, due to technological operation, most of heating furnace for forging come out of the stove EGT all higher than 1000 DEG C
[1], because not being applicable to the high-efficiency waste heat recovery device of Long-Time Service, waste gas heat loss is very large, so that the thermal efficiency of stove is only 5% ~ 10%, thus causes the significant wastage of fuel.A large amount of fume afterheats is not fully utilized, and the burn up level of Thermal Equipment is generally higher than external equivalent devices.
Around the energy-saving and cost-reducing further problem of heating furnace, domestic thermal technology circle had once carried out large quantifier elimination and exploration work.Wherein, the viewpoint of " waste heat is entirely from reclaiming " and " three high and one low " once caused the common concern of thermal technology circle." waste heat is entirely from reclaiming " refers to: use high-performance heat exchanger that EGT is dropped to less than 200 DEG C, strengthen stove adiabatic, to reduce all other heat loss of stove simultaneously; " three high and one low " refers to: implement " high furnace temperature ", " high cigarette temperature " operation to stove, carries out " efficient waste heat recovery " simultaneously and use " low dark decay " material to flue gas on stove.These two kinds imaginations reflect the developing direction of monomer Thermal Equipment energy saving research to a certain extent.Its precondition be achieved to have reliable high-efficiency waste heat recovery device.But suffer from the heat-exchange device do not met the demands completely, all can not realize well.
Heat-accumulation type hot switching technology is the novel energy-conserving technology of rising the eighties in last century, and the maximum feature of this technology is energy-efficient, and average energy saving can improve 30% again on existing basis; Corresponding high-temp combustion technology, not only increases the efficiency of combustion of fuel, more effectively opens the Appropriate application approach of low calorie fuels therewith
[2].The application of heat-accumulation type hot switching technology, its meaning is: not only save fuel to the full extent, and reduces pollutant discharge amount, meets the strategic requirement of China's industrial sustainable development.Pottery heat exchanger comes out with 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 after application, energy-saving effect is remarkable, when flue-gas temperature is 1000 ~ 1250 DEG C, and can air preheat to 900 ~ 1000 DEG C.Adopt heat exchanger, the material restriction of the exhaust gas temperature of burner hearth no longer heated exchanger
[3], can realize high-temperature smoke discharging, correspondingly the high temperature preheating of combustion air becomes possibility.
[1] Zhang Fabo. the emulation of filling ball regenerator thermal process and optimal design. Beijing: University of Science & Technology, Beijing, 2007.
[2] Li Chaoxiang. the application and forecast [J] of heat-accumulation type hot switching technology. energy supply for metallurgy, 2004,23 (2): 45 ~ 49.
[3] Li Aiju. Wang Yi. the progress [J] of New Type Regenerative Materials in Regenerator Chamber. energy supply for metallurgy, 2007,26 (3), 43-48.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of regenerator transfixion, realizes burner continuous heat supply wind and discharges cooled flue gas and suitching type heat-accumulated type high-efficiency heat exchanger.
In order to solve the problems of the technologies described above, suitching type heat-accumulated type high-efficiency heat exchanger provided by the invention, the inwall of axial shell is provided with insulating, the inside of described axial shell is divided into six equal axial cavity by dividing plate: the first cavity, second cavity, 3rd cavity, 4th cavity, 5th cavity and the 6th cavity, all heat storage is filled with in described axial shell, the two ends of described axial cavity are provided with the punching baffle plate being used for fixing heat storage, described axial shell be provided with respectively with the second described cavity, the first tracheae that 4th cavity is communicated with the two ends of the 6th cavity and the second tracheae, described axial shell be provided with respectively with the first described cavity, the 3rd tracheae that 3rd cavity is communicated with the two ends of the 5th cavity and the 4th tracheae, the first described tracheae and the 3rd tracheae by the first gas reversing arrangement respectively with the first air inlet pipe and downtake pipe alternate communication, the second described tracheae and the 4th described tracheae by the second gas reversing arrangement respectively with the second air inlet pipe and second exhaust pipe alternate communication, the first described tracheae and the first described air inlet pipe, when the 3rd described tracheae is communicated with downtake pipe, the second described tracheae is communicated with described second exhaust pipe, the 4th described tracheae is communicated with the second described air inlet pipe, when the first described tracheae is communicated with the first described air inlet pipe with described downtake pipe, the 3rd described tracheae, the 4th described tracheae is communicated with described second exhaust pipe, and the second described tracheae is communicated with the second described air inlet pipe.
The first described gas reversing arrangement and the structure of the second gas reversing arrangement are: be provided with inner core in urceolus, described urceolus is connected with the 4th body, described inner core is connected with the first body, second body and the 3rd body, described inner core is provided with the first pore and the second pore that are communicated with urceolus, piston valve core is provided with in described inner core, described piston valve core is connected with drive unit, described piston valve core is provided with the first valve plate, second valve plate and the 3rd valve plate, described piston valve core is when a position, the first described body is communicated with the 3rd described body, the second described body is communicated with the 4th body, described piston valve core is when another position, the first described body is communicated with the 4th described body, the second described body is communicated with the 3rd body.
Described drive unit is the synchronous cylinder drivers in both sides.
Described axial shell is provided with mozzle, described mozzle is an annular structure, be connected with the first tracheae and the second tracheae its outer surface is porose, its inwall have three holes be evenly distributed, be communicated with the two ends of the 6th cavity with the second described cavity, the 4th cavity respectively.
Described heat storage is divided into according to different flue gas qualities: Ceramic Balls and ceramic honeycomb body.
The bottom of described axial shell is provided with the hydraulic tilting device of the replacing being convenient to heat storage.
Described punching baffle plate is fixed together by bolt and described axial shell.
Adopt the suitching type heat-accumulated type high-efficiency heat exchanger of technique scheme, the advantage of invention and good effect:
1) device is established in continuous heat accumulation type heat exchange, turnover tracheae and regenerative apparatus transfixion, and the position that it utilizes travel switch to control change-over valve core realizes cold fluid and hot fluid alternating current through heat storage;
2) reversal valve operation is rapid, light, can provide the combustion air of preheating while commutation continuously, overcomes burner hearth when tradition commutation regenerator needs two cover burners simultaneously and introduces and changes large shortcoming;
3) achieve burner continuous heat supply wind, and discharge cooled flue gas; Flue-gas temperature 1000 ~ 1300 DEG C it can by air preheat to 900 ~ 1100 DEG C, about reducing exhaust gas temperature to 200 ~ 300 DEG C, recovered flue gas preheating 75 ~ 90%;
4) directly can to spray into burner hearth through burner combustion-supporting for the high temperature air of preheating, so both improves the efficiency of combustion of system, additionally reduce the discharge of pollutant, energy-saving and cost-reducing, the discharge of decreasing pollution thing, environmental protect.
In sum, the present invention is a kind of regenerator transfixion, realizes burner continuous heat supply wind and discharges cooled flue gas and suitching type heat-accumulated type high-efficiency heat exchanger.
Accompanying drawing explanation
Fig. 1 is the front view of structure of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is along A-A line cut-away view in Fig. 1.
Fig. 4 is along B-B line cut-away view in Fig. 1.
Fig. 5 is the first gas reversing arrangement and the second gas reversing arrangement structural representation.
Fig. 6 is that the first gas reversing arrangement and the second gas reversing arrangement are at an operating position schematic diagram.
Fig. 7 is that the first gas reversing arrangement and the second gas reversing arrangement are at another operating position schematic diagram.
Fig. 8 is Ceramic Balls heat storage body structure schematic diagram.
Fig. 9 is ceramic honeycomb body heat storage body structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 8 and Fig. 9, the inwall of axial shell 19 is provided with insulating 15, the inside of axial shell 19 is divided into six equal axial cavity by dividing plate: the 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 axial shell 19, heat storage is divided into according to different flue gas qualities: Ceramic Balls 28 and ceramic honeycomb body 29.The two ends of axial cavity are provided with the punching baffle plate 16 being used for fixing heat storage, and punching baffle plate 16 is fixed together by bolt and axial shell 19, are convenient to change.Axial shell 19 is provided with the first tracheae 10 and the second tracheae 21, axial shell 19 is provided with mozzle 18, mozzle 18 is annular structures, be connected with the first tracheae 10 and the second tracheae 21 its outer surface is porose, its inwall there are three holes be evenly distributed, are communicated with the two ends of the 6th cavity 6 with the second cavity 2, the 4th cavity 4 respectively.Axial shell 19 is provided with the 3rd tracheae 9 and the 4th tracheae 20 that are communicated with the first cavity 1, the 3rd cavity 3 and the two ends of the 5th cavity 5 respectively, first tracheae 10 and the 3rd tracheae 9 by the first gas reversing arrangement respectively with the first air inlet pipe 8 and downtake pipe 7 alternate communication, the second tracheae 21 and the 4th tracheae 20 by the second gas reversing arrangement respectively with the second air inlet pipe 13 and second exhaust pipe 12 alternate communication.The bottom of axial shell 19 is provided with the hydraulic tilting device of the replacing being convenient to heat storage.
See Fig. 2 and Fig. 5, the structure of the first gas reversing arrangement and the second gas reversing arrangement is: be provided with inner core 23 in urceolus 22, urceolus 22 is connected with the 4th body 91, inner core 23 is connected with the first body 81, second body 71 and the 3rd body 101, inner core 23 is provided with the first pore 11 and the second pore 25 be communicated with urceolus 22, in inner core 23, be provided with piston valve core 17, piston valve core 17 is connected with drive unit 14, and drive unit 14 is the synchronous cylinder drivers in both sides.Piston valve core 17 is provided with the first valve plate 26, second valve plate 24 and the 3rd valve plate 27, piston valve core 17 is when a position, first body 81 is communicated with the 3rd body 101, second body 71 is communicated with the 4th body 91, piston valve core 17 is when another position, first body 81 is communicated with the 4th body 91, and the second body 71 is communicated with the 3rd body 101.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the regenerative apparatus that heat exchanger cold (heat) enters in (going out) feed channel and cylindrical shell maintains static, and realizes cold and hot gas alternating current through heat storage by the commutation of the gas at cylindrical shell two ends and guiding device; Gas reversing arrangement realizes cold and hot gas by two ends travel switch control spool to alternately pass through accumulator tank.First body 81 is connected with the first air inlet pipe 8, second body 71 is connected with downtake pipe 7,3rd body 101 is connected with the first tracheae 10,4th body 91 is connected with the 3rd tracheae 9, and air is each passed through punching baffle plate 16 and enters the heat absorbing the saturated heat storage of accumulation of heat in the second cavity 2, the 4th cavity 4 and the 6th cavity 6 after entering mozzle 18 after entering the first tracheae 10 by the first air inlet pipe 8; Flue gas enters heat storage body in the first cavity 1, the 3rd cavity 3 and the 5th cavity 5 by the second air inlet pipe 13; Cooled flue gas enters the 3rd tracheae 9 and is discharged by downtake pipe 7 through the first pore 11, is entered burner provide hot blast by the air heated by second exhaust pipe 12; Second cycle is when starting, drive unit 14 drives piston valve core 17 to move to position as shown in Figure 7, and at this moment air enters from the first air inlet pipe 8 passage that piston flow the 3rd tracheae 9 flow through by air just now and enters the first cavity 1, the 3rd cavity 3 and the 5th cavity 5 through punching baffle plate 16 and absorb the heat storage that flue gas crosses; Flue gas flows through the second tracheae 21 by the second air inlet pipe 13 and enters the second cavity 2, the 4th cavity 4 and the 6th cavity 6 and add by air cooled heat storage, cooled flue gas is discharged by downtake pipe 7, air after heating enters the 4th tracheae 20 and enters burner through the second pore 25 by second exhaust pipe 12, and realizing provides hot blast continuously and reduce flue-gas temperature.
Reversal valve realizes the mode that cold fluid and hot fluid alternately passes through cavity: as shown in Figure 6, when piston valve core 17 is in this position, flue gas and air are entered by the second air inlet pipe 13 and the first air inlet pipe 8 respectively, enter the gas of the second air inlet pipe 13 by the 4th tracheae 20, enter next operating position, the gas entering the first air inlet pipe 8 enters next operating position by the first tracheae 10.As shown in Figure 7, when valve core movement is to this position, flue gas and air are entered by the second air inlet pipe 13 and the first air inlet pipe 8 respectively, and the gas entering the second air inlet pipe 13 enters next operating position by the second tracheae 21.The gas entering the first air inlet pipe 8 enters next operating position by the 3rd tracheae 9.Realize the exchange of two kinds of gases.
The direction of program air-flow is that the change of the position of piston valve core 17 by the first gas reversing arrangement and the second gas reversing arrangement controls.In the running of equipment, carry out by travel switch the movement travel that accessory drive 14 controls the piston valve core 17 of the first gas reversing arrangement and the second gas reversing arrangement, the power that piston valve core 17 moves then is provided by cylinder.Inlet end is identical with outlet side operation principle.
Claims (7)
1. a suitching type heat-accumulated type high-efficiency heat exchanger, it is characterized in that: the inwall of axial shell (19) is provided with insulating (15), the inside of described axial shell (19) is divided into six equal axial cavity by dividing plate: the first cavity (1), second cavity (2), 3rd cavity (3), 4th cavity (4), 5th cavity (5) and the 6th cavity (6), all heat storage is filled with in described axial shell (19), the two ends of described axial cavity are provided with the punching baffle plate (16) being used for fixing heat storage, described axial shell (19) be provided with respectively with described the second cavity (2), the first tracheae (10) that 4th cavity (4) is communicated with the two ends of the 6th cavity (6) and the second tracheae (21), described axial shell (19) be provided with respectively with described the first cavity (1), the 3rd tracheae (9) that 3rd cavity (3) is communicated with the two ends of the 5th cavity (5) and the 4th tracheae (20), described the first tracheae (10) and the 3rd tracheae (9) by the first gas reversing arrangement respectively with the first air inlet pipe (8) and downtake pipe (7) alternate communication, described the second tracheae (21) and the 4th described tracheae (20) by the second gas reversing arrangement respectively with the second air inlet pipe (13) and second exhaust pipe (12) alternate communication, described the first tracheae (10) and described the first air inlet pipe (8), when the 3rd described tracheae (9) is communicated with downtake pipe (7), described the second tracheae (21) is communicated with described second exhaust pipe (12), the 4th described tracheae (20) is communicated with described the second air inlet pipe (13), when described the first tracheae (10) is communicated with described the first air inlet pipe (8) with described downtake pipe (7), the 3rd described tracheae (9), the 4th described tracheae (20) is communicated with described second exhaust pipe (12), and described the second tracheae (21) is communicated with described the second air inlet pipe (13).
2. suitching type heat-accumulated type high-efficiency heat exchanger according to claim 1, it is characterized in that: the first described gas reversing arrangement and the structure of the second gas reversing arrangement are: be provided with inner core (23) in urceolus (22), described urceolus (22) is connected with the 4th body (91), described inner core (23) is connected with the first body (81), second body (71) and the 3rd body (101), described inner core (23) is provided with the first pore (11) and the second pore (25) that are communicated with urceolus (22), piston valve core (17) is provided with in described inner core (23), described piston valve core (17) is connected with drive unit (14), described piston valve core (17) is provided with the first valve plate (26), second valve plate (24) and the 3rd valve plate (27), described piston valve core (17) is when a position, described the first body (81) is communicated with the 3rd described body (101), described the second body (71) is communicated with the 4th body (91), described piston valve core (17) is when another position, described the first body (81) is communicated with the 4th described body (91), described the second body (71) is communicated with the 3rd body (101).
3. suitching type heat-accumulated type high-efficiency heat exchanger according to claim 2, is characterized in that: described drive unit (14) is the synchronous cylinder driver in both sides.
4. the suitching type heat-accumulated type high-efficiency heat exchanger according to claim 1,2 or 3, it is characterized in that: described axial shell is provided with mozzle (18), described mozzle (18) is an annular structure, be connected with the first tracheae (10) and the second tracheae (21) its outer surface is porose, its inwall there are three holes be evenly distributed, are communicated with the two ends of the 6th cavity (6) with described the second cavity (2), the 4th cavity (4) respectively.
5. the suitching type heat-accumulated type high-efficiency heat exchanger according to claim 1,2 or 3, is characterized in that: described heat storage is divided into according to different flue gas qualities: Ceramic Balls (28) and ceramic honeycomb body (29).
6. the suitching type heat-accumulated type high-efficiency heat exchanger according to claim 1,2 or 3, is characterized in that: the bottom of described axial shell (19) is provided with the hydraulic tilting device of the replacing being convenient to heat storage.
7. the suitching type heat-accumulated type high-efficiency heat exchanger according to claim 1,2 or 3, is characterized in that: described punching baffle plate (16) is fixed together by bolt and described axial shell (19).
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| CN201210357900.2A CN102829484B (en) | 2012-09-24 | 2012-09-24 | A kind of suitching type heat-accumulated type high-efficiency heat exchanger |
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| CN201210357900.2A CN102829484B (en) | 2012-09-24 | 2012-09-24 | A kind of suitching type heat-accumulated type high-efficiency heat exchanger |
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| CN102829484B true CN102829484B (en) | 2015-08-12 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1356682A (en) * | 1970-11-30 | 1974-06-12 | Aichelin Fa J | Furnaces for manufacturing ceramically bonded bodies of expanded clay |
| CN2535671Y (en) * | 2002-04-30 | 2003-02-12 | 李淑琴 | Heat-accumulating type combustor |
| CN2625739Y (en) * | 2003-01-16 | 2004-07-14 | 王霁 | Heat accumulation type constant temperature and pressure heat exchanger with continuous air |
| CN201547779U (en) * | 2009-12-09 | 2010-08-11 | 岳阳钟鼎热工电磁科技有限公司 | Rotary continuous heat accumulation burner |
-
2012
- 2012-09-24 CN CN201210357900.2A patent/CN102829484B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1356682A (en) * | 1970-11-30 | 1974-06-12 | Aichelin Fa J | Furnaces for manufacturing ceramically bonded bodies of expanded clay |
| CN2535671Y (en) * | 2002-04-30 | 2003-02-12 | 李淑琴 | Heat-accumulating type combustor |
| CN2625739Y (en) * | 2003-01-16 | 2004-07-14 | 王霁 | Heat accumulation type constant temperature and pressure heat exchanger with continuous air |
| CN201547779U (en) * | 2009-12-09 | 2010-08-11 | 岳阳钟鼎热工电磁科技有限公司 | Rotary continuous heat accumulation burner |
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