CN102297448B - Air pre-heater with rotary heating surface and residual neat recovering system - Google Patents
Air pre-heater with rotary heating surface and residual neat recovering system Download PDFInfo
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- CN102297448B CN102297448B CN201110170468.1A CN201110170468A CN102297448B CN 102297448 B CN102297448 B CN 102297448B CN 201110170468 A CN201110170468 A CN 201110170468A CN 102297448 B CN102297448 B CN 102297448B
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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
Air pre-heater with rotary heating surface, including housing, columnar rotor vertically can be rotatably mounted in housing, the right side of housing is vertically provided with exhaust gases passes, the left side of housing is vertically respectively equipped with low-pressure secondary wind passage and high pressure First air passage, low-pressure secondary wind passage and high pressure First air passage are each passed through the bin of housing internal rotor, the lower end of low-pressure secondary wind passage and high pressure First air passage is air inlet, the upper end of low-pressure secondary wind passage and high pressure First air passage is air outlet, circulated air passage vertically it is provided with between exhaust gases passes and high pressure First air passage or between exhaust gases passes and low-pressure secondary wind passage on described housing.Its objective is to provide on a kind of inwall that bin is reduced or avoided and dust stratification, dirty on the surface of heat transfer element, clear up on the inwall of bin convenient with dust stratification on the surface of heat transfer element, heat exchange efficiency is high, service life length air pre-heater with rotary heating surface and residual neat recovering system.
Description
Technical field
The present invention relates to a kind of air pre-heater with rotary heating surface and residual neat recovering system.
Background technology
Existing air pre-heater with rotary heating surface, it is common that include housing, vertically can be rotatably mounted in housing
Columnar rotor, in rotor, vertical direction radially is provided with multiple dividing plate, and rotor is divided into the storehouse of several sectors by dividing plate
Room, is respectively equipped with heat transfer element in each bin, the right side of described housing is vertically provided with exhaust gases passes, and exhaust gases passes is worn
Crossing the bin of housing internal rotor, the lower end of exhaust gases passes is outlet flue, and the upper end of exhaust gases passes is smoke inlet, a left side for described housing
It is logical that side is vertically respectively equipped with low-pressure secondary wind passage and high pressure First air passage, low-pressure secondary wind passage and high pressure First air
Road is each passed through the bin of housing internal rotor, and the lower end of low-pressure secondary wind passage and high pressure First air passage is air inlet, low pressure two
The upper end of secondary wind passage and high pressure First air passage is air outlet, and in use, rotor rotates under the dragging of motor, with greatly
The flue gas of calorimetric amount passes through exhaust gases passes, and heats the heat transfer that each bin being positioned in exhaust gases passes is rotated through
Element, allows the temperature of heat transfer element raise rapidly, when heated heat transfer element rotates to low-pressure secondary wind passage, high pressure once
After in wind passage, will be heated by heat transfer element by the air of low-pressure secondary wind passage, high pressure First air passage from bottom to top,
Thus the heat in flue gas is passed to by low-pressure secondary wind passage, the air of high pressure First air passage.But existing heating surface
Rotary regenerative air preheater in use, can produce the concretion in a certain amount of flue gas, the concretion meeting in these flue gases
On the inwall of the bin depositing to temperature lower and on the surface of heat transfer element, owing to there being the existence of the concretion in these flue gases,
Can cause on the inwall of bin and build up substantial amounts of dust on the surface of heat transfer element, and ultimately resulting in exhaust gases passes, low-pressure secondary
Wind passage, high pressure First air passage are seriously obstructed, and heat exchange efficiency is greatly lowered, to such an extent as to must not be made without cleaning dredging,
Equipment could normally work.Additionally, the method for the dust built up on the inwall of existing cleaning bin and on the surface of heat transfer element
Being to utilize pressed gas soot blowing, its cleaning effect is poor, thus causes equipment heat exchange efficiency to reduce, and causes the waste of the energy.
Summary of the invention
It is an object of the invention to provide on a kind of inwall that bin is reduced or avoided and dust stratification, dirty on the surface of heat transfer element,
Dust stratification, dirty are convenient on the inwall of cleaning bin and on the surface of heat transfer element, and heat exchange efficiency is high, being subject to of length in service life
Hot side rotary regenerative air preheater and residual neat recovering system.
Air pre-heater with rotary heating surface of the present invention, including housing, vertically can be rotatably mounted in housing
Columnar rotor, in rotor, vertical direction radially is provided with multiple dividing plate, and rotor is divided into the storehouse of several sectors by dividing plate
Room, is respectively equipped with heat transfer element in each bin, the right side of described housing is vertically provided with exhaust gases passes, and exhaust gases passes is worn
Crossing the bin of housing internal rotor, the lower end of exhaust gases passes is outlet flue, and the upper end of exhaust gases passes is smoke inlet, a left side for described housing
It is logical that side is vertically respectively equipped with low-pressure secondary wind passage and high pressure First air passage, low-pressure secondary wind passage and high pressure First air
Road is each passed through the bin of housing internal rotor, and the lower end of low-pressure secondary wind passage and high pressure First air passage is air inlet, low pressure two
The upper end of secondary wind passage and high pressure First air passage is air outlet, described housing is positioned at exhaust gases passes and high pressure First air passage it
Between or exhaust gases passes and low-pressure secondary wind passage between be vertically provided with circulated air passage, circulated air passage is through the storehouse of rotor
Room, the lower end of circulated air passage is air inlet, and the upper end of circulated air passage is air outlet.
Use the residual neat recovering system of air pre-heater with rotary heating surface of the present invention, pre-including heating surface swinging air
Hot device, air pre-heater with rotary heating surface includes housing, vertically can be rotatably mounted columnar rotor in housing,
In rotor, vertical direction radially is provided with multiple dividing plate, and rotor is divided into the bin of several sectors by dividing plate, in each bin
Being respectively equipped with heat transfer element, the right side of described housing is vertically provided with exhaust gases passes, and exhaust gases passes is through housing internal rotor
Bin, the lower end of exhaust gases passes is outlet flue, and the upper end of exhaust gases passes is smoke inlet, and the left side of described housing is vertically divided
It is not provided with low-pressure secondary wind passage and high pressure First air passage, low-pressure secondary wind passage and high pressure First air passage and is each passed through housing
The bin of internal rotor, the lower end of low-pressure secondary wind passage and high pressure First air passage is air inlet, low-pressure secondary wind passage and high pressure
The upper end of First air passage is air outlet, on described housing between exhaust gases passes and high pressure First air passage or exhaust gases passes with
Vertically being provided with circulated air passage between low-pressure secondary wind passage, circulated air passage is through the bin of rotor, circulated air passage
Lower end be air inlet, the upper end of circulated air passage is air outlet, and described high pressure First air passage is positioned at the pipeline section of air opening end
Being connected with the air inlet of reflux pipe, the air outlet of reflux pipe is connected with the air inlet of described circulated air passage, described circulated air
The air outlet of passage is connected with the pipeline section of described low-pressure secondary wind passage air opening end, and described circulated air passage carries airduct with abrasive material
Outlet be connected, abrasive material conveying airduct is in series with pipe valve, the import of abrasive material conveying airduct is connected with storehouse formula Pneumatic conveying pump.
Residual neat recovering system of the present invention, wherein said reflux pipe is in series with pipe valve.
The air pre-heater with rotary heating surface of the present invention and use the system of this preheater in use, its rotor dragging at motor
Dynamic lower rotation, the flue gas with amount of heat passes through exhaust gases passes, and heats each bin being positioned in exhaust gases passes
The heat transfer element being inside rotated through, allows the temperature of heat transfer element raise rapidly, when heated heat transfer element rotates to low-pressure secondary
After in wind passage, high pressure First air passage, the air by low-pressure secondary wind passage, high pressure First air passage will from bottom to top
Heated by heat transfer element, thus the heat in flue gas passed to by low-pressure secondary wind passage, the air of high pressure First air passage,
It is transported to the air intake of circulated air passage lower end by reflux pipe from a part for high pressure First air channel upper hot-air out
Mouth enters the top of low-pressure secondary wind passage the most again upwardly through circulated air passage, converges with the hot-air in low-pressure secondary wind passage
Closing, in this course, the hot-air from high pressure First air passage heating from bottom to top can be rotated through circulated air passage
Each bin and the heat transfer element being positioned at bin, add and pass through at a high speed each bin inwall of circulated air passage and be positioned at bin
In the thermal current on surface of heat transfer element can blow dust that may be present and dirty off, make its surface to accumulate dust, dirty.
Therefore, the air pre-heater with rotary heating surface of the present invention and residual neat recovering system can improve heat exchange efficiency and the service life of equipment,
To avoid energy waste, and labor cleaning's number of times can be reduced, reduce the labor intensity of workman.
Specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is air pre-heater with rotary heating surface and the structural representation of residual neat recovering system of the present invention.
Detailed description of the invention
As it is shown in figure 1, the air pre-heater with rotary heating surface of the present invention, including housing 1, vertically can in housing 1
Being rotatably mounted columnar rotor 2, the axis of the rotating shaft of rotor 2 is positioned at vertical direction, rotating shaft upper, lower two ends pass through
Bearing is arranged on housing 1, and in rotor 2, vertical direction radially is provided with multiple dividing plate, and rotor 2 is divided into some by dividing plate
The bin of individual sector (viewing from above), is respectively equipped with heat transfer element in each bin, is vertically provided with on the right side of housing 1
Exhaust gases passes 3, exhaust gases passes 3 is through the bin of housing 1 internal rotor 2, and the lower end of exhaust gases passes 3 is outlet flue, and flue gas leads to
The upper end in road 3 is smoke inlet, and the left side of housing 1 is vertically respectively equipped with low-pressure secondary wind passage 4 and high pressure First air leads to
Road 5, low-pressure secondary wind passage 4 and high pressure First air passage 5 are each passed through the bin of housing 1 internal rotor 2, low-pressure secondary wind
The lower end of passage 4 and high pressure First air passage 5 is air inlet, low-pressure secondary wind passage 4 and the upper end of high pressure First air passage 5
For air outlet, on housing 1 between exhaust gases passes 3 and high pressure First air passage 5 or exhaust gases passes 3 leads to low-pressure secondary wind
Vertically being provided with circulated air passage 6 between road 4, circulated air passage 6 passes the bin of rotor 2, circulated air passage 6
Lower end is air inlet, and the upper end of circulated air passage 6 is air outlet.
Above-mentioned circulated air passage 6 needs to be arranged on heat transfer element and i.e. will rotate at exhaust gases passes 3, therefore, and circulated air passage
The setting of 6 is relevant with turning to of rotor 2, if heat transfer element is will to enter flue gas after leaving high pressure First air passage 5 to lead to
Road 3, then circulated air passage 6 is just arranged between exhaust gases passes 3 and high pressure First air passage 5.If heat transfer element be from
Immediately enter exhaust gases passes 3 after opening low-pressure secondary wind passage 4, then circulated air passage 6 is just arranged on exhaust gases passes 3 and low pressure two
Between secondary wind passage 4.
Use the residual neat recovering system of above-mentioned air pre-heater with rotary heating surface, as it is shown in figure 1, include heating surface swinging
Air preheater, air pre-heater with rotary heating surface includes housing 1, vertically can be rotatably mounted circle in housing 1
The rotor 2 of tubular, in rotor 2, vertical direction radially is provided with multiple dividing plate, and rotor 2 is divided into several fan-shaped by dividing plate
Bin, be respectively equipped with heat transfer element in each bin, the right side of housing 1 is vertically provided with exhaust gases passes 3, flue gas lead to
Road 3 is through the bin of housing 1 internal rotor 2, and the lower end of exhaust gases passes 3 is outlet flue, and the upper end of exhaust gases passes 3 is smoke inlet,
The left side of housing 1 is vertically respectively equipped with low-pressure secondary wind passage 4 and high pressure First air passage 5, low-pressure secondary wind passage 4
With the bin that high pressure First air passage 5 is each passed through housing 1 internal rotor 2, low-pressure secondary wind passage 4 and high pressure First air passage
The lower end of 5 is air inlet, and the upper end of low-pressure secondary wind passage 4 and high pressure First air passage 5 is air outlet, and housing 1 is positioned at
Vertically it is provided with between exhaust gases passes 3 and high pressure First air passage 5 or between exhaust gases passes 3 and low-pressure secondary wind passage 4
Circulated air passage 6, circulated air passage 6 is through the bin of rotor 2, and the lower end of circulated air passage 6 is air inlet, and circulated air leads to
The upper end in road 6 is air outlet, and the air inlet of pipeline section and reflux pipe 7 that high pressure First air passage 5 is positioned at air opening end is connected,
The air outlet of reflux pipe 7 is connected with the air inlet of circulated air passage 6, and the air outlet of circulated air passage 6 leads to low-pressure secondary wind
The pipeline section of road 4 air opening end is connected, and circulated air passage 6 is connected with the outlet of abrasive material conveying airduct 8, on abrasive material conveying airduct 8
Being in series with pipe valve, the import of abrasive material conveying airduct 8 is connected with storehouse formula Pneumatic conveying pump 9.
The pipe valve for regulating air quantity it is in series with on above-mentioned reflux pipe 7.
In use, its rotor 2 is under the dragging of motor for the air pre-heater with rotary heating surface of the present invention and residual neat recovering system
Rotating, the flue gas with amount of heat passes through exhaust gases passes 3, and heats each bin being positioned in exhaust gases passes 3
The heat transfer element being inside rotated through, allows the temperature of heat transfer element raise rapidly, when heated heat transfer element rotates to low-pressure secondary
After in wind passage 4, high pressure First air passage 5, from bottom to top by low-pressure secondary wind passage 4, the sky of high pressure First air passage 5
Gas will be heated by heat transfer element, thus passes to the heat in flue gas be led to by low-pressure secondary wind passage 4, high pressure First air
The air in road 5, is transported to circulation from a part for high pressure First air passage 5 top hot-air out by reflux pipe 7
The air inlet of wind passage 6 lower end enters the top of low-pressure secondary wind passage 4 the most again upwardly through circulated air passage 6, with low pressure
Hot-air in secondary air channel 4 converges, and in this course, the hot-air from high pressure First air passage 5 can be from bottom to top
Heating be rotated through each bin of circulated air passage 6 and be positioned at the heat transfer element of bin, allow condensable matter in flue gas without
Method condenses, and adds the heat at a high speed by each bin inwall of circulated air passage 6 with the surface of the heat transfer element being positioned at bin
Air-flow can blow dust that may be present and dirty off, makes its surface to accumulate dust, dirty.Therefore, the heating surface of the present invention
Rotary regenerative air preheater and residual neat recovering system can improve heat exchange efficiency and the service life of equipment, to avoid energy waste, and
Labor cleaning's number of times can be reduced, reduce the labor intensity of workman.
If needing to clear up bin inwall and the surface of the heat transfer element being positioned at bin on rotor 2, abrasive material conveying airduct can be opened
On 8, the pipe valve of series connection, and starts storehouse formula Pneumatic conveying pump 9, allows the storehouse formula Pneumatic conveying pump 9 will be with by abrasive material conveying airduct 8
The air of a certain amount of abrasive material sends into circulated air passage 6, utilizes the abrasive material in air-flow to dispose and accumulates in bin inwall and be positioned at storehouse
The dust on the surface of indoor heat transfer element and dirty.The abrasive material used can be Special grinding material, such as quartz sand, river sand, carbon
SiClx etc., it is also possible to be the dust granule etc. collected of electric cleaner.
Embodiment described above is only to be described the preferred embodiment of the present invention, not carries out the scope of the present invention
Limiting, under design spirit premise without departing from the present invention, technical scheme is made by this area ordinary skill technical staff
Various deformation and improvement, all should fall in the protection domain that claims of the present invention determines.
Claims (3)
1. air pre-heater with rotary heating surface, including housing (1), vertically can be rotatably mounted circle in housing (1)
The rotor (2) of tubular, in rotor (2), vertical direction radially is provided with multiple dividing plate, dividing plate by rotor (2) if being divided into
Dry fan-shaped bin, is respectively equipped with heat transfer element in each bin, the right side of described housing (1) is vertically provided with flue gas
Passage (3), exhaust gases passes (3) is through the bin of housing (1) internal rotor (2), and the lower end of exhaust gases passes (3) is smoke
Mouthful, the upper end of exhaust gases passes (3) is smoke inlet, and the left side of described housing (1) is vertically respectively equipped with low-pressure secondary wind
Passage (4) and high pressure First air passage (5), low-pressure secondary wind passage (4) and high pressure First air passage (5) are each passed through shell
The bin of body (1) internal rotor (2), the lower end of low-pressure secondary wind passage (4) and high pressure First air passage (5) is air inlet,
The upper end of low-pressure secondary wind passage (4) and high pressure First air passage (5) is air outlet, it is characterised in that on described housing (1)
Be positioned between exhaust gases passes (3) and high pressure First air passage (5) or exhaust gases passes (3) and low-pressure secondary wind passage (4) it
Between be vertically provided with circulated air passage (6), circulated air passage (6) is through the bin of rotor (2), circulated air passage (6)
Lower end be air inlet, the upper end of circulated air passage (6) is air outlet；
The air inlet of the pipeline section and reflux pipe (7) that are positioned at air opening end on described high pressure First air passage (5) is connected, backflow
The air outlet of pipeline (7) is connected with the air inlet of described circulated air passage (6), the air outlet of described circulated air passage (6) with
The pipeline section of described low-pressure secondary wind passage (4) air opening end is connected.
2. the residual neat recovering system of air pre-heater with rotary heating surface, including air pre-heater with rotary heating surface, heating surface returns
Rotary air preheater includes housing (1), vertically can be rotatably mounted columnar rotor (2) in housing (1),
In rotor (2), vertical direction radially is provided with multiple dividing plate, and rotor (2) is divided into the bin of several sectors by dividing plate,
Being respectively equipped with heat transfer element in each bin, the right side of described housing (1) is vertically provided with exhaust gases passes (3), and flue gas leads to
Road (3) is through the bin of housing (1) internal rotor (2), and the lower end of exhaust gases passes (3) is outlet flue, exhaust gases passes (3)
Upper end be smoke inlet, the left side of described housing (1) is vertically respectively equipped with low-pressure secondary wind passage (4) and high pressure one
Secondary wind passage (5), low-pressure secondary wind passage (4) and high pressure First air passage (5) are each passed through housing (1) internal rotor (2)
Bin, the lower end of low-pressure secondary wind passage (4) and high pressure First air passage (5) is air inlet, low-pressure secondary wind passage (4)
Be air outlet with the upper end of high pressure First air passage (5), it is characterised in that be positioned on described housing (1) exhaust gases passes (3) with
Circulation vertically it is provided with between high pressure First air passage (5) or between exhaust gases passes (3) and low-pressure secondary wind passage (4)
Wind passage (6), circulated air passage (6) is through the bin of rotor (2), and the lower end of circulated air passage (6) is air inlet, follows
The upper end of ring wind passage (6) is air outlet, and described high pressure First air passage (5) is positioned at pipeline section and the return duct of air opening end
The air inlet on road (7) is connected, and the air outlet of reflux pipe (7) is connected with the air inlet of described circulated air passage (6), described
The air outlet of circulated air passage (6) is connected with the pipeline section of described low-pressure secondary wind passage (4) air opening end, and described circulated air leads to
Road (6) is connected with the outlet of abrasive material conveying airduct (8), and abrasive material conveying airduct (8) is in series with pipe valve, abrasive material conveying airduct
(8) import is connected with storehouse formula Pneumatic conveying pump (9).
Residual neat recovering system the most according to claim 2, it is characterised in that described reflux pipe is in series with pipe valve on (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110170468.1A CN102297448B (en) | 2011-06-23 | 2011-06-23 | Air pre-heater with rotary heating surface and residual neat recovering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110170468.1A CN102297448B (en) | 2011-06-23 | 2011-06-23 | Air pre-heater with rotary heating surface and residual neat recovering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102297448A CN102297448A (en) | 2011-12-28 |
| CN102297448B true CN102297448B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110170468.1A Active CN102297448B (en) | 2011-06-23 | 2011-06-23 | Air pre-heater with rotary heating surface and residual neat recovering system |
Country Status (1)
| Country | Link |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944025A (en) * | 2012-11-20 | 2013-02-27 | 孟金来 | Flexible contact type sealing device |
| CN106546124A (en) * | 2016-11-04 | 2017-03-29 | 国家电网公司 | A kind of anti-blocking apparatus for ash of circulated air and rotary regenerative air preheater |
| CN106765283A (en) * | 2016-12-16 | 2017-05-31 | 国网浙江省电力公司电力科学研究院 | A kind of Thermal generation unit and its rotary regenerative air preheater |
| CN109373800A (en) * | 2018-10-10 | 2019-02-22 | 广东粤电靖海发电有限公司 | Can on-line cleaning rotary air preheating system and on-line cleaning method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056996B2 (en) * | 1977-08-26 | 1985-12-12 | 株式会社大気社 | A method for obtaining hot air for regenerating a dehumidifying element to be supplied to a dehumidifier for combustion air, and a rotary heat exchange device used for carrying out the method |
| JPS63201417A (en) * | 1987-02-16 | 1988-08-19 | Mitsubishi Heavy Ind Ltd | Air preheater |
| JPS6488024A (en) * | 1987-09-29 | 1989-04-03 | Mitsubishi Heavy Ind Ltd | Rotary regeneration type air preheater |
| JPH0814794A (en) * | 1994-06-27 | 1996-01-19 | Mitsubishi Heavy Ind Ltd | Rotary heat regenerator |
| US5915339A (en) * | 1995-06-29 | 1999-06-29 | Abb Air Preheater Inc. | Sector plate and seal arrangement for trisector air preheater |
| JPH10306919A (en) * | 1997-05-08 | 1998-11-17 | Babcock Hitachi Kk | Heat storage type air preheater and combustion system employing the same |
| JP2001021140A (en) * | 1999-07-05 | 2001-01-26 | Ishikawajima Harima Heavy Ind Co Ltd | Rotary heat accumulative heat exchanger |
| CN102042605B (en) * | 2011-01-27 | 2012-08-29 | 章礼道 | Side-to-side thermal deashing method for rotary air preheater |
-
2011
- 2011-06-23 CN CN201110170468.1A patent/CN102297448B/en active Active
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Effective date of registration: 20220606 Address after: 100031 room 1216, 12 / F, 129 Xuanwumen West Street, Xicheng District, Beijing Patentee after: Beijing Huanengda Electric Power Technology Application Co.,Ltd. Address before: 100034 1606, unit 2, 4th floor, No.8 Guanyuan, yulangxiyuan, Xicheng District, Beijing Patentee before: Meng Jinlai |
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