CN103939936B - The multistage secondary air sealed sealing system complexes of rotary regenerative air heater - Google Patents
The multistage secondary air sealed sealing system complexes of rotary regenerative air heater Download PDFInfo
- Publication number
- CN103939936B CN103939936B CN201410166233.9A CN201410166233A CN103939936B CN 103939936 B CN103939936 B CN 103939936B CN 201410166233 A CN201410166233 A CN 201410166233A CN 103939936 B CN103939936 B CN 103939936B
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- air
- panel
- sealing system
- diversion chamber
- secondary air
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- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 230000003467 diminishing effect Effects 0.000 claims abstract description 6
- 241000283216 Phocidae Species 0.000 abstract description 40
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 208000011580 syndromic disease Diseases 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
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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 the multistage secondary air sealed sealing system complexes of a kind of rotary regenerative air heater, comprise a set of above sealing system corresponding with respective air preheater, often overlap sealing system and include rotary seal pair, First air and Secondary Air sealing pair, recovering mechanism, described rotary seal pair comprises the axial seal sheet at shell, left and right sealed stator, upper and lower apex seal and edge, left and right sealed stator includes upper and lower panel and longitudinal panel, establishes mutually isolated diversion chamber in upper and lower panel is equal; First air and Secondary Air sealing gland pair comprise the upper and lower fanning strip and longitudinal circular arc panel that connect firmly; Described upper and lower panel is diminishing polygonal panel from outside to inside, is equipped with severally to flow to consistent tilted slotted hole with leaking out in the inner side of upper and lower panel, and tilted slotted hole communicates with respective diversion chamber, and tilted slotted hole is between its face plate center line and air side edge; The present invention can guarantee that original air preheater heat exchange property is unaffected, strengthens air preheater self sealss performance, ensures the temperature-resistant and efficiency of combustion of hot Secondary Air, and makes air preheater air leakage rate be down to less than 2.5%.
Description
Technical field
The present invention relates to a kind of multistage second sealing system complexes for rotary regenerative air heater.
Background technology
Along with country is to the enforcement of thermal power generation unit " upper large, press little " policy, the domestic thermal power generation unit beginning all to have closed down below 300MW from 2010.Main force's unit of current support domestic electrical supply all more than 300MW grade, the separate unit boiler capacity that increases newly develop to more than the 600MW of ultra-supereritical pressure.And more than 300MW thermal power generation unit boiler must be equipped with rotary regenerative air preheater equipment, though began to adopt the first generation " regenerative air preheater air leakage recovery apparatus set " patented technology from 2006, within 2011, begin to adopt the second generation " rotary regenerative air heater sealed recovery system " patented technology optimized on first generation patented technology basis, solve air preheater air leakage problem, but derive in practice: this sealed stator such as technology First air and fume side fanning strip must adopt 30 ° of design angles (former air preheater sealed stator angle is 22.5 ° or 20 °), this design angle has hidden the air preheater heat exchange area of at least one group rotor storehouse lattice completely, thus air preheater heat exchange property is made to reduce, exhaust gas temperature rises, reclaimed in addition leak out for hot and cold wind mixes, general at about 160 DEG C, mix with the hot Secondary Air of more than 320 DEG C after entering boiler secondary hot bellows by recovery system, under burner hearth enters total blast volume permanence condition, the air of about 160 DEG C reclaimed is more, the hot-air of 320 DEG C is fewer, enters the combustion-supporting hot Secondary Air temperature of burner hearth owing to reducing, and thus hearth combustion efficiency reduces.
" rotary regenerative air heater sealed recovery system " patented technology, though significantly reduce air preheater air leakage rate, problems such as exposing exhaust gas temperature simultaneously and rise, boiler combustion efficiency declines, the boiler thermal output of raising is partially offset again.
From 2011 to 2012, the practice result of more than the ten platform air preheater application second generation " rotary regenerative air heater sealed recovery system " patented technologies showed: sealing technology sacrifices the heat exchange property of air preheater and boiler combustion efficiency to guarantee sealing property.
Summary of the invention
The object of the invention is to the above-mentioned deficiency for prior art, there is provided a kind of rotary regenerative air heater multistage secondary air sealed sealing system complexes, it can guarantee that original air preheater heat exchange property is unaffected, strengthen air preheater self sealss performance, ensure the temperature-resistant and efficiency of combustion of hot Secondary Air, air preheater air leakage rate can be made to be down to less than 2.5% simultaneously.
For achieving the above object, the multistage secondary air sealed sealing system complexes of rotary regenerative air heater of the present invention, comprise a set of above sealing system corresponding with respective air preheater, often overlap sealing system and include rotary seal pair, First air and Secondary Air sealing gland pair, recovering mechanism, described rotary seal pair comprises shell, left, right sealed stator, what be loaded on rotor every block dividing plate is upper, the axial seal sheet at lower apex seal and edge, left, right sealed stator includes connect firmly upper, lower panel and longitudinal panel, on, mutually isolated diversion chamber is established in lower panel is equal, on, upper respectively with shell of lower panel, underbeam connects firmly, First air and Secondary Air sealing gland pair comprise the upper and lower fanning strip and longitudinal circular arc panel that connect firmly, and upper and lower fanning strip connects firmly with the upper and lower beam of shell respectively, recovering mechanism comprises the several airducts be communicated with each diversion chamber, the blower fan be connected with airduct, it is characterized in that described upper and lower panel is for diminishing polygonal panel from outside to inside, be equipped with in the inner side of upper and lower panel and severally flow to consistent tilted slotted hole with leaking out, tilted slotted hole communicates with respective diversion chamber, and tilted slotted hole is between its face plate center line and air side edge, the axial seal sheet being loaded on upper and lower apex seal on rotor every block dividing plate and edge is two pieces.
The rotary seal adjutant flue gas that the present invention consists of axial seal sheet and the sealed stator at the upper and lower apex seal on every block dividing plate and edge and primary and secondary air are isolated, and the rotary seal adjutant primary and secondary air that each diaphragm seal forms with upper and lower fanning strip and longitudinal circular arc panel is isolated, form multistage pair sealing; The air of a small amount of leakage is inhaled into each diversion chamber by blower fan, and to enter burner hearth combustion-supporting or be transported to the place that user needs; Because the axial seal sheet at the upper and lower apex seal on every block dividing plate and edge is two pieces, under the angular speed operating condition that rotor is same, two-stage sealing sheet and sealed stator form the sealing pair that sealing pair forms than former one pole diaphragm seal, and self sealss effect increases more than several times; Upper and lower panel is diminishing polygonal panel from outside to inside, does not hide the effective heat transfer area of former rotor, therefore does not affect former air preheater heat exchange property, significantly reduce heat loss due to exhaust gas; Flow to consistent tilted slotted hole with leaking out, significantly can reduce the structural drag of recycling channel, avoid again dust directly to crash in diversion chamber simultaneously, both solved sucktion fan wear problem, again reduced fan energy consumption; Absorb the tilted slotted hole deflection air side of leaking out, under equal fan shaft power, total head prerequisite, utilize the malleation of leaking out to reduce the entrance dynamic pressure of reclaiming blower fan, also naturally increase fan outlet dynamic head, can fan energy consumption be reduced;
As a further improvement on the present invention, establish mutually isolated air chamber in described upper and lower fanning strip is equal, be equipped with the several spouts be connected with air chamber in the side that upper and lower fanning strip and rotor are adjacent; The diversion chamber of often overlapping the top panel of sealing system is all connected with air-heater with hot wind inlet header by airduct, and air-heater is connected with the air chamber of airduct with upper fanning strip by hot-blast outlet header again; The diversion chamber of often overlapping the lower panel of sealing system is all connected with blower fan with cold wind inlet header by airduct, and blower fan is connected with the air chamber of airduct with lower fanning strip by cold wind outlet header again; By the air chamber savings pressure of the upper and lower fanning strip be sent to respectively between First air and Secondary Air that leaks out of different temperatures that upper and lower panel place is leaked, penetrated by the spout waterfall on upper and lower fanning strip sealing surface again, pressure pad is formed in the space that bipolar diaphragm seal and fanning strip are formed, significantly reduce the pressure reduction between former First air and Secondary Air, therefore First air side direction Secondary Air side leakage rate is lowered, not only reduce the energy consumption of primary air fan, and the wind-warm syndrome of Secondary Air can not be reduced, improve hearth combustion efficiency;
As a further improvement on the present invention, be provided with diversion chamber in described longitudinal panel, the inner side of longitudinal panel is provided with several suction slotted eye, and suction slotted eye all communicates with diversion chamber; In diversion chamber, be provided with dividing plate, the diversion chamber above dividing plate is connected with hot-blast outlet header by airduct, and the diversion chamber below dividing plate is connected with cold wind inlet header by airduct; Can realize the recovery of leaking out at longitudinal panel place, because longitudinal panel exists thermograde, the temperature of dividing plate present position is consistent with the wind-warm syndrome of Secondary Air, leaking out in upper and lower for dividing plate diversion chamber can be delivered to different spouts, ensures that the wind-warm syndrome of Secondary Air is unaffected;
As a further improvement on the present invention, the airduct be connected with cold wind inlet header with hot wind inlet header is equipped with telescopic joint and damper; Telescopic joint can be avoided each airduct stress and lose efficacy, and damper reclaims the temperature of wind according to regulating in season and boiler operatiopn operating mode, the cold wind temperature of controllable Secondary Air entrance, thus the heat exchange property improving air preheater;
As a further improvement on the present invention, comprise two cover sealing systems, each diversion chamber of two cover sealing systems is all connected with corresponding same hot wind inlet header or cold wind inlet header by airduct; Use and often use two air preheaters, two cover sealing systems share a hot wind inlet header and cold wind inlet header, not only reduce manufacturing cost, and can improve heat exchange efficiency;
In sum, the present invention significantly can not only reduce heat loss due to exhaust gas, increases the regulating power of boiler smoke wind system temperature, improves efficiency of combustion, improve boiler thermal output, significantly reduce fan energy consumption, solve the Air Leakage of rotary regenerative air heater simultaneously, realize the maximized cost efficiency of boiler and energy-conservation, reduction of discharging.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the partial enlarged drawing at I place in Fig. 1.
Fig. 5 is the broken section enlarged drawing at A place in Fig. 2.
Fig. 6 is the partial enlarged drawing at II place in Fig. 5.
Fig. 7 is the partial enlarged drawing at III place in Fig. 5.
Fig. 8 is the cutaway view Amplified image at B place in Fig. 3.
Fig. 9 is the partial enlarged drawing at IV place in Fig. 8.
Figure 10 is the partial enlarged drawing at V place in Fig. 8.
Figure 11 is the partial enlarged drawing at VI place in Fig. 8.
Figure 12 is the front view of a First air and Secondary Air sealing gland pair in Fig. 2.
Figure 13 is the left view amplified after Figure 12 removes circular arc panel.
Figure 14 is the partial enlarged drawing at VII place in Figure 13.
Figure 15 is the partial enlarged drawing at VIII place in Figure 13.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
By shown in Fig. 1 to Figure 15, the multistage secondary air sealed sealing system complexes of this rotary regenerative air heater, comprise the sealing system that two covers are corresponding with respective air preheater 24, often overlap sealing system and include rotary seal pair, First air and Secondary Air sealing gland pair, recovering mechanism, described rotary seal pair comprises shell 25, left, right sealed stator, be loaded on apex seal 5 on two on the every block dividing plate 27 of rotor 26, the two axial diaphragm seals 7 at twice apex seals 8 and edge, left, right sealed stator includes the top panel 1 connected firmly, lower panel 3 and longitudinal panel 2, mutually isolated diversion chamber is established in three plates are equal, described top panel 1 and lower panel 3 are diminishing polygonal panel from outside to inside, be equipped with in top panel 1 and the inner side of lower panel 3 and severally flow to consistent tilted slotted hole 31 or 32 with leaking out, tilted slotted hole 31 or 32 communicates with respective diversion chamber, tilted slotted hole 31 or 32 is between its face plate center line and air side edge, longitudinal panel 2 is connected with shell 25, and be provided with dividing plate 28 in longitudinal panel 2, the inner side of longitudinal panel 2 is provided with several suction slotted eye 33, and suction slotted eye 33 all communicates with its diversion chamber, top panel 1 and lower panel 3 connect firmly with the upper beam 29 of shell 25, underbeam 30 respectively,
First air and Secondary Air sealing gland pair comprise the circular arc panel 36 of upper fanning strip 34, lower fanning strip 35 and the longitudinal direction connected firmly, and upper fanning strip 34, lower fanning strip 35 connect firmly with the upper beam 29 of shell 25, underbeam 30 respectively; Described upper fanning strip 34, lower fanning strip 35 all in establish mutually isolated air chamber, be equipped with in upper fanning strip 34, side that lower fanning strip 35 is adjacent with rotor 26 the several spouts 37 or 38 be connected with air chamber;
Recovering mechanism comprise overlap each top panel 1 in sealing system with two diversion chamber all by the air-heater 17 that airduct is connected with same hot wind inlet header 15, air-heater 17 is connected with the air chamber of airduct with each upper fanning strip 34 by hot-blast outlet header 19 again; The diversion chamber of each lower panel 3 in two cover sealing systems is all connected with blower fan 18 with cold wind inlet header 16 by airduct, and blower fan 18 is connected with the air chamber of airduct with each lower fanning strip 35 by cold wind outlet header 20 again; Diversion chamber above dividing plate 28 in longitudinal panel 2 is also connected with hot wind inlet header 15 by airduct, and the diversion chamber below dividing plate 28 in longitudinal panel 2 is also connected with cold wind inlet header 16 by airduct; The airduct be connected with cold wind inlet header 16 with hot wind inlet header 15 is equipped with telescopic joint 12 and damper 13;
The rotary seal adjutant flue gas that the present invention consists of the two axial diaphragm seals 7 at apex seal 5, lower apex seal 8 and edge on two of every block dividing plate 27 and sealed stator and primary and secondary air are isolated, form two-stage sealing sheet, the rotary seal adjutant primary and secondary air that the circular arc panel 36 of each diaphragm seal and upper fanning strip 34, lower fanning strip 35 and longitudinal direction forms is isolated, and forms multistage pair sealing, under the angular speed operating condition that rotor 26 is same, two-stage sealing sheet and sealed stator form the sealing pair that sealing pair forms than former one pole diaphragm seal, and self sealss effect increases more than several times, top panel 1, lower panel 3 are diminishing polygonal panel from outside to inside, do not hide effective heat transfer area of former rotor 26, therefore do not affect former air preheater heat exchange property, significantly reduce heat loss due to exhaust gas, the hot blast higher from a small amount of temperature of leaking between top panel 1 and upper apex seal 5 is attracted by air-heater 17, through tilted slotted hole 31, airduct, hot wind inlet header 15, hot-blast outlet header 19 enters the air chamber savings pressure of fanning strip 34, penetrated by spout 37 waterfall on upper fanning strip 34 sealing surface again, pressure pad is formed in the space that upper apex seal 5 and upper fanning strip 34 are formed, significantly reduce the pressure reduction between former First air and Secondary Air, therefore First air side direction Secondary Air side leakage rate is lowered, not only reduce the energy consumption of primary air fan, this hot blast wind-warm syndrome is consistent with Secondary Air, the wind-warm syndrome of Secondary Air can not be reduced after mixing with Secondary Air, improve hearth combustion efficiency, equally, the cold wind lower from a small amount of temperature of leaking between lower panel 3 and lower apex seal 8 is attracted by blower fan 18, through tilted slotted hole 32, airduct, cold wind inlet header 16, cold wind outlet header 20 enters the air chamber savings pressure of lower fanning strip 35, penetrated by spout 38 waterfall on lower fanning strip 35 sealing surface again, pressure pad is formed in the space that lower apex seal 8 and lower fanning strip 35 are formed, also reduce the pressure reduction between former First air and Secondary Air, First air side direction Secondary Air side leakage rate is lowered, naturally the inlet side of air preheater Secondary Air heating surface is incorporated after the acting of this cold wind, cold wind continues heating by air preheater heating surface, burner hearth is entered again combustion-supporting with former hot Secondary Air, also boiler combustion efficiency is not affected, axis between longitudinal panel 2 and axial seal sheet 7 is leaked out under the attraction of two blower fans 17,18, is entered the diversion chamber of dividing plate 28 upper and lower through aspirating slotted eye 33 respectively, axially leak out between air preheater housing 25 and rotor 26 through metal heat-conducting, form the wind-warm syndrome of cold lower part and hot upper part thermograde, dividing plate 28 to be positioned at along thermograde direction at the elevation location equal with secondary air temperature, avoids having an impact as the wind-warm syndrome of pressure pad to Secondary Air,
Flow to consistent tilted slotted hole 31 and 32 with leaking out, significantly can reduce the structural drag of recycling channel, avoid again dust directly to crash in diversion chamber simultaneously, both solved sucktion fan wear problem, again reduced fan energy consumption; Absorb the tilted slotted hole 31 and 32 leaked out and be partial to air side, under equal fan shaft power, total head prerequisite, utilize the malleation of leaking out to reduce the entrance dynamic pressure of reclaiming blower fan, also naturally increase fan outlet dynamic head, can fan energy consumption be reduced; Two cover sealing systems share a hot wind inlet header 15 and cold wind inlet header 16, not only reduce manufacturing cost, and can improve heat exchange efficiency; The present invention adds by two-stage sealing sheet recovery of leaking out, and air preheater air leakage rate can be down to less than 2.5%.
Claims (5)
1. the multistage secondary air sealed sealing system complexes of rotary regenerative air heater, comprise a set of above sealing system corresponding with respective air preheater, often overlap sealing system and include rotary seal pair, First air and Secondary Air sealing gland pair, recovering mechanism, described rotary seal pair comprises shell, left, right sealed stator, what be loaded on rotor every block dividing plate is upper, the axial seal sheet at lower apex seal and edge, left, right sealed stator includes connect firmly upper, lower panel and longitudinal panel, on, mutually isolated diversion chamber is established in lower panel is equal, on, upper respectively with shell of lower panel, underbeam connects firmly, First air and Secondary Air sealing gland pair comprise the upper and lower fanning strip and longitudinal circular arc panel that connect firmly, and upper and lower fanning strip connects firmly with the upper and lower beam of shell respectively, recovering mechanism comprises the several airducts be communicated with each diversion chamber, the blower fan be connected with airduct, it is characterized in that described upper and lower panel is for diminishing polygonal panel from outside to inside, be equipped with in the inner side of upper and lower panel and severally flow to consistent tilted slotted hole with leaking out, tilted slotted hole communicates with respective diversion chamber, and tilted slotted hole is between its face plate center line and air side edge, the axial seal sheet being loaded on upper and lower apex seal on rotor every block dividing plate and edge is two pieces.
2. the multistage secondary air sealed sealing system complexes of rotary regenerative air heater as claimed in claim 1, it is characterized in that establishing mutually isolated air chamber in described upper and lower fanning strip all, be equipped with the several spouts be connected with air chamber in the side that upper and lower fanning strip and rotor are adjacent; The diversion chamber of often overlapping the top panel of sealing system is all connected with air-heater with hot wind inlet header by airduct, and air-heater is connected with the air chamber of airduct with upper fanning strip by hot-blast outlet header again; The diversion chamber of often overlapping the lower panel of sealing system is all connected with blower fan with cold wind inlet header by airduct, and blower fan is connected with the air chamber of airduct with lower fanning strip by cold wind outlet header again.
3. the multistage secondary air sealed sealing system complexes of rotary regenerative air heater as claimed in claim 2, it is characterized in that being provided with diversion chamber in described longitudinal panel, the inner side of longitudinal panel is provided with several suction slotted eye, and suction slotted eye all communicates with diversion chamber; In diversion chamber, be provided with dividing plate, the diversion chamber above dividing plate is connected with hot-blast outlet header by airduct, and the diversion chamber below dividing plate is connected with cold wind outlet header by airduct.
4. the multistage secondary air sealed sealing system complexes of rotary regenerative air heater as claimed in claim 3, is characterized in that being equipped with telescopic joint and damper on the airduct be connected with cold wind inlet header with hot wind inlet header.
5. the multistage secondary air sealed sealing system complexes of rotary regenerative air heater as described in as arbitrary in claim 2 to 4, it is characterized in that comprising two cover sealing systems, each diversion chamber of two cover sealing systems is all connected with corresponding same hot wind inlet header or cold wind inlet header by airduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166233.9A CN103939936B (en) | 2014-04-24 | 2014-04-24 | The multistage secondary air sealed sealing system complexes of rotary regenerative air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166233.9A CN103939936B (en) | 2014-04-24 | 2014-04-24 | The multistage secondary air sealed sealing system complexes of rotary regenerative air heater |
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| Publication Number | Publication Date |
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| CN103939936A CN103939936A (en) | 2014-07-23 |
| CN103939936B true CN103939936B (en) | 2016-04-06 |
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| CN201410166233.9A Expired - Fee Related CN103939936B (en) | 2014-04-24 | 2014-04-24 | The multistage secondary air sealed sealing system complexes of rotary regenerative air heater |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020736A (en) * | 2015-07-10 | 2015-11-04 | 清华大学 | Rotary air preheater with hierarchical reverse rotation |
| CN114294673B (en) * | 2021-12-31 | 2022-12-02 | 江苏国信协联能源有限公司 | Rotary air preheater sealing system sealed by adopting compressed air curtain |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042609A (en) * | 2009-10-21 | 2011-05-04 | 上海锅炉厂有限公司 | Rotary high-temperature air preheater |
| CN202082946U (en) * | 2011-02-14 | 2011-12-21 | 燕守志 | Sealing recovery complete device of rotary type air preheater |
| EP2458315A1 (en) * | 2010-11-25 | 2012-05-30 | Balcke-Dürr GmbH | Regenerative heat exchanger with forced rotor seal |
| CN203364160U (en) * | 2013-06-19 | 2013-12-25 | 浙江开尔新材料股份有限公司 | Sealing structure for tri-sectional rotary type pre-heater sealing areas |
| CN203797696U (en) * | 2014-04-24 | 2014-08-27 | 燕瑛侠 | Rotary air pre-heater multi-level set air-sealed sealing system set apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8327919B2 (en) * | 2009-03-24 | 2012-12-11 | Alstom Technology Ltd | Apparatus and method for modifying a modular air preheater |
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2014
- 2014-04-24 CN CN201410166233.9A patent/CN103939936B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042609A (en) * | 2009-10-21 | 2011-05-04 | 上海锅炉厂有限公司 | Rotary high-temperature air preheater |
| EP2458315A1 (en) * | 2010-11-25 | 2012-05-30 | Balcke-Dürr GmbH | Regenerative heat exchanger with forced rotor seal |
| CN202082946U (en) * | 2011-02-14 | 2011-12-21 | 燕守志 | Sealing recovery complete device of rotary type air preheater |
| CN203364160U (en) * | 2013-06-19 | 2013-12-25 | 浙江开尔新材料股份有限公司 | Sealing structure for tri-sectional rotary type pre-heater sealing areas |
| CN203797696U (en) * | 2014-04-24 | 2014-08-27 | 燕瑛侠 | Rotary air pre-heater multi-level set air-sealed sealing system set apparatus |
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Owner name: YAN SHOUZHI Free format text: FORMER OWNER: YAN YINGXIA Effective date: 20141211 |
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Effective date of registration: 20170214 Address after: 641000, Sichuan, Wuhou District, Fairview Road, No. 2, building 1, unit 20, building 4, No. 34 Patentee after: Yan Yingxia Address before: 643000 Sichuan province high tech Industrial Park, Jinchuan Road, No., East Building, room, room, exchange, room 15, No. 406 Patentee before: Yan Shouzhi |
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