CN103939936A - Multistage-pair air-sealing-type sealing system set of rotary air pre-heaters - Google Patents
Multistage-pair air-sealing-type sealing system set of rotary air pre-heaters Download PDFInfo
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- CN103939936A CN103939936A CN201410166233.9A CN201410166233A CN103939936A CN 103939936 A CN103939936 A CN 103939936A CN 201410166233 A CN201410166233 A CN 201410166233A CN 103939936 A CN103939936 A CN 103939936A
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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 multistage-pair air-sealing-type sealing system set of rotary air pre-heaters. The multistage-pair air-sealing-type sealing system set of the rotary air pre-heaters comprises one or more sealing systems corresponding to the air pre-heaters respectively. Each sealing system comprises a rotary sealing pair, a primary air and secondary air sealing pair and a recovery mechanism. Each rotary sealing pair comprises a shell, a left sealing stator, a right sealing stator, upper radial sealing pieces, lower radial sealing pieces and edge axial sealing pieces; the left sealing stators and the right sealing stators respectively comprise an upper panel, a lower panel and a longitudinal panel, and isolated flow guide chambers are arranged in the upper panels and the lower panels respectively. Each primary air and secondary air sealing pair comprises an upper sector plate, a lower sector plate fixedly connected with the upper sector plate and a longitudinal arc panel; the upper panels and the lower panels are polygonal plates, each polygonal plate becomes smaller gradually from outside to inside, the inner side of each upper panel and the inner side of each lower panel are respectively provided with a plurality of inclined slotted holes with the direction the same as the flow direction of leaking air, and the inclined slotted holes are communicated with the corresponding flow guide chambers and located between the center lines of the corresponding panels and the air side edge. The multistage-pair air-sealing-type sealing system set of the rotary air pre-heaters can guarantee that the heat exchange performance of the original air pre-heaters is not influenced, improve the self-sealing performance of the air pre-heaters, guarantee that the temperature of secondary air is not changed and the combustion efficiency is not influenced, and decrease the air leakage rate of the air pre-heaters to a value smaller 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 the enforcement of country to thermal power generation unit " upper large, press little " policy, the domestic thermal power generation unit below 300MW that began all to have closed down from 2010.Main force's unit of the domestic supply of electric power of support is at present all more than 300MW grade, and newly-increased separate unit boiler capacity develops above to the 600MW of ultra supercritical pressure.And the above thermal power generation unit of 300MW 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, the second generation " rotary regenerative air heater sealed recovery system " patented technology of optimizing on first generation patented technology basis begins to adopt for 2011, solve air preheater air leakage problem, but in practice, derive: the sealed stator such as wind of this technology 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, thereby air preheater heat exchange property is reduced, exhaust gas temperature rises, that reclaimed in addition leaks out for hot and cold wind mixing, generally 160 DEG C of left and right, after entering boiler secondary hot bellows by recovery system, the hot Secondary Air above with 320 DEG C mixes, enter under total blast volume permanence condition at burner hearth, the air of 160 DEG C of left and right of reclaiming is more, the hot-air of 320 DEG C is just fewer, enters the combustion-supporting hot Secondary Air temperature of burner hearth owing to having reduced, thereby hearth combustion Efficiency Decreasing.
" rotary regenerative air heater sealed recovery system " patented technology, though significantly reduced air preheater air leakage rate, exposes exhaust gas temperature simultaneously and rises, and the boiler thermal output that boiler combustion efficiency declines, improves is again by problems such as partial offsets.
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 is that heat exchange property and the boiler combustion efficiency of sacrificing air preheater are guaranteed sealing property.
Summary of the invention
The object of the invention is to the above-mentioned deficiency for prior art, provide 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 constant and efficiency of combustion of hot Secondary Air temperature, can make air preheater air leakage rate be down to below 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 and air preheater is corresponding separately sealing system, every cover sealing system includes rotary seal pair, wind and Secondary Air sealing gland pair, recovering mechanism, described rotary seal pair comprises shell, left, right sealed stator, be loaded on upper on every dividing plate of rotor, the axial seal sheet at lower apex seal and edge, left, right sealed stator includes connect firmly upper, lower panel and longitudinally panel, on, in lower panel is equal, establish the diversion chamber of mutual isolation, on, lower panel upper with shell respectively, underbeam connects firmly, wind and Secondary Air sealing gland pair comprise the upper and lower fanning strip that connects firmly and longitudinal circular arc panel, and upper and lower fanning strip connects firmly with the upper and lower beam of shell respectively, recovering mechanism comprises the several airducts that are communicated with each diversion chamber, the blower fan being 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 diversion chamber separately, and tilted slotted hole is between its face plate center line and air side edge, be loaded on upper and lower apex seal on every dividing plate of rotor and the axial seal sheet at edge and be two.
The present invention is by the axial seal sheet at the upper and lower apex seal on every dividing plate and edge and rotary seal adjutant flue gas and the primary and secondary air isolation that sealed stator forms, and the rotary seal adjutant primary and secondary air isolation that each diaphragm seal and upper and lower fanning strip and longitudinal circular arc panel form, forms multistage secondary sealing; A small amount of air leaking 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 dividing plate and edge is two, under the same angular speed operating condition of rotor, two-stage sealing sheet forms with sealed stator the sealing pair that sealing pair forms than former one pole diaphragm seal, more than self sealss effect increases 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 do not affect former air preheater heat exchange property, significantly reduces heat loss due to exhaust gas; Flow to consistent tilted slotted hole with leaking out, can significantly reduce the structural drag of recycling channel, avoid again dust directly to crash in diversion chamber, both solved sucktion fan wear problem, reduced again fan energy consumption simultaneously; The tilted slotted hole deflection air side that absorption is leaked out, under equal fan shaft power, total head prerequisite, utilizes the malleation of leaking out to reduce the entrance dynamic pressure of reclaiming blower fan, has also naturally increased fan outlet dynamic head, can reduce fan energy consumption;
As a further improvement on the present invention, in described upper and lower fanning strip is equal, establish the air chamber of mutual isolation, be equipped with in a upper and lower fanning strip side adjacent with rotor the several spouts that are connected with air chamber; The diversion chamber of the top panel of every cover sealing system is all connected with air-heater with hot blast inlet header by airduct, and air-heater is connected with the air chamber of upper fanning strip with airduct by hot-blast outlet header again; The diversion chamber of the lower panel of every cover 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 lower fanning strip with airduct by cold wind outlet header again; Be sent to respectively the air chamber savings pressure of the upper and lower fanning strip between wind and Secondary Air by the leaking 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, in the space that bipolar diaphragm seal and fanning strip form, form pressure pad, significantly reduce the pressure reduction between a former wind and Secondary Air, therefore a wind side direction Secondary Air side leakage rate is lowered, not only reduce the energy consumption of primary air fan, and can not reduce the wind-warm syndrome of Secondary Air, improve hearth combustion efficiency;
As a further improvement on the present invention, in described longitudinal panel, be provided with diversion chamber, longitudinally the inner side of panel is provided with several suction slotted eyes, and suction slotted eye all communicates with diversion chamber; In diversion chamber, be provided with dividing plate, the diversion chamber of dividing plate top is connected with hot-blast outlet header by airduct, and the diversion chamber of dividing plate below 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 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, on the airduct being connected with cold wind inlet header with hot blast inlet header, be equipped with telescopic joint and damper; Telescopic joint can be avoided each airduct stress and lose efficacy, and damper, according to season and boiler operatiopn operating mode regulating the temperature that reclaims wind, can regulate and control the cold wind temperature of Secondary Air entrance, thereby improves the heat exchange property of 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 blast inlet header or cold wind inlet header by airduct; Use and often use two air preheaters, two cover sealing systems share a hot blast inlet header and cold wind inlet header, not only reduce manufacturing cost, and can improve heat exchange efficiency;
In sum, the present invention can not only significantly 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, realized the maximized cost efficiency of boiler and energy-conservation, reduction of discharging.
Brief description of the drawings
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 wind and Secondary Air sealing gland pair in Fig. 2.
Figure 13 is that Figure 12 removes the left view amplifying after 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 air preheater 24 separately, every cover sealing system includes rotary seal pair, wind 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 rotor 26 every dividing plates 27, the two axial diaphragm seals 7 at twice apex seals 8 and edge, left, right sealed stator includes the top panel 1 connecting firmly, lower panel 3 and longitudinally panel 2, in three plates are equal, establish the diversion chamber of mutual isolation, described top panel 1 and lower panel 3 are diminishing polygonal panel from outside to inside, plate 1 and the inner side of lower panel 3 are equipped with and severally flow to consistent tilted slotted hole 31 or 32 with leaking out in the above, tilted slotted hole 31 or 32 communicates with diversion chamber separately, tilted slotted hole 31 or 32 is between its face plate center line and air side edge, longitudinally panel 2 is connected with shell 25, longitudinally in panel 2, is provided with dividing plate 28, and longitudinally the inner side of panel 2 is provided with several suction slotted eyes 33, and suction slotted eye 33 all communicates with its diversion chamber, top panel 1 and lower panel 3 connect firmly with upper beam 29, the underbeam 30 of shell 25 respectively,
Wind and Secondary Air sealing gland pair comprise the upper fanning strip 34, lower fanning strip 35 and the longitudinal circular arc panel 36 that connect firmly, and upper fanning strip 34, lower fanning strip 35 connect firmly with upper beam 29, the underbeam 30 of shell 25 respectively; Described upper fanning strip 34, lower fanning strip 35 established the air chamber of mutual isolation in all, is equipped with in upper fanning strip 34, a side that lower fanning strip 35 is adjacent with rotor 26 the several spouts 37 or 38 that are connected with air chamber;
Recovering mechanism comprises the air-heater 17 being all connected with same hot blast inlet header 15 by airduct with the diversion chamber of each top panel 1 in two cover sealing systems, and air-heater 17 is connected with the air chamber of each upper fanning strip 34 with airduct by hot-blast outlet header 19 again; The diversion chamber of the 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 each lower fanning strip 35 with airduct by cold wind outlet header 20 again; Diversion chamber in the dividing plate 28 longitudinal panels 2 in top is also connected with hot blast inlet header 15 by airduct, and the diversion chamber in the dividing plate 28 longitudinal panels 2 in below is also connected with cold wind inlet header 16 by airduct; On the airduct being connected with cold wind inlet header 16 with hot blast inlet header 15, be equipped with telescopic joint 12 and damper 13;
The present invention by every dividing plate 27 two on the two axial diaphragm seals 7 at apex seal 5, lower apex seal 8 and edge isolate with primary and secondary air with the rotary seal adjutant flue gas that sealed stator forms, form two-stage sealing sheet, the rotary seal adjutant primary and secondary air isolation that each diaphragm seal and upper fanning strip 34, lower fanning strip 35 and longitudinal circular arc panel 36 form, forms multistage secondary sealing, under the same angular speed operating condition of rotor 26, two-stage sealing sheet forms with sealed stator the sealing pair that sealing pair forms than former one pole diaphragm seal, more than self sealss effect increases 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 higher hot blast of a small amount of temperature leaking between top panel 1 and apex seal 5 is attracted by air-heater 17, through tilted slotted hole 31, airduct, hot blast inlet header 15, hot-blast outlet header 19 enters the air chamber savings pressure of fanning strip 34, penetrated by spout 37 waterfalls on upper fanning strip 34 sealing surfaces again, in the space forming at upper apex seal 5 and upper fanning strip 34, form pressure pad, significantly reduce the pressure reduction between a former wind and Secondary Air, therefore a wind 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, after mixing with Secondary Air, can not reduce the wind-warm syndrome of Secondary Air, improve hearth combustion efficiency, equally, the lower cold wind of a small amount of temperature leaking between lower panel 3 and 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 waterfalls on lower fanning strip 35 sealing surfaces again, in the space forming at lower apex seal 8 and lower fanning strip 35, form pressure pad, also reduced the pressure reduction between a former wind and Secondary Air, one time wind side direction Secondary Air side leakage rate is lowered, after this cold wind acting, naturally incorporate the inlet side of air preheater Secondary Air heating surface, cold wind continues heating by air preheater heating surface, enter burner hearth with former hot Secondary Air more combustion-supporting, do not affect boiler combustion efficiency yet, longitudinally axially leaking out between panel 2 and axial seal sheet 7 enters respectively the diversion chamber of dividing plate 28 upper and lowers under the attraction of two blower fans 17,18 through suction slotted eye 33, 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 is positioned at along thermograde direction in the absolute altitude position equating with secondary air temperature, avoids as pressure pad, the wind-warm syndrome of Secondary Air being exerted an influence,
Flow to consistent tilted slotted hole 31 and 32 with leaking out, can significantly reduce the structural drag of recycling channel, avoid again dust directly to crash in diversion chamber, both solved sucktion fan wear problem, reduced again fan energy consumption simultaneously; The tilted slotted hole 31 and 32 deflection air side that absorption is leaked 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, have also naturally increased fan outlet dynamic head, can reduce fan energy consumption; Two cover sealing systems share a hot blast 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 the recovery of leaking out, and air preheater air leakage rate can be down to below 2.5%.
Claims (5)
1. the multistage secondary air sealed sealing system complexes of rotary regenerative air heater, comprise a set of above and air preheater is corresponding separately sealing system, every cover sealing system includes rotary seal pair, wind and Secondary Air sealing gland pair, recovering mechanism, described rotary seal pair comprises shell, left, right sealed stator, be loaded on upper on every dividing plate of rotor, the axial seal sheet at lower apex seal and edge, left, right sealed stator includes connect firmly upper, lower panel and longitudinally panel, on, in lower panel is equal, establish the diversion chamber of mutual isolation, on, lower panel upper with shell respectively, underbeam connects firmly, wind and Secondary Air sealing gland pair comprise the upper and lower fanning strip that connects firmly and longitudinal circular arc panel, and upper and lower fanning strip connects firmly with the upper and lower beam of shell respectively, recovering mechanism comprises the several airducts that are communicated with each diversion chamber, the blower fan being 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 diversion chamber separately, and tilted slotted hole is between its face plate center line and air side edge, be loaded on upper and lower apex seal on every dividing plate of rotor and the axial seal sheet at edge and be two.
2. the multistage secondary air sealed sealing system complexes of rotary regenerative air heater as claimed in claim 1, the air chamber that it is characterized in that establishing in described upper and lower fanning strip all mutual isolation, is equipped with in a upper and lower fanning strip side adjacent with rotor the several spouts that are connected with air chamber; The diversion chamber of the top panel of every cover sealing system is all connected with air-heater with hot blast inlet header by airduct, and air-heater is connected with the air chamber of upper fanning strip with airduct by hot-blast outlet header again; The diversion chamber of the lower panel of every cover 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 lower fanning strip with airduct 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, is characterized in that being provided with diversion chamber in described longitudinal panel, and longitudinally the inner side of panel is provided with several suction slotted eyes, and suction slotted eye all communicates with diversion chamber; In diversion chamber, be provided with dividing plate, the diversion chamber of dividing plate top is connected with hot-blast outlet header by airduct, and the diversion chamber of dividing plate below 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 being connected with cold wind inlet header with hot blast 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 blast 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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| CN103939936A true CN103939936A (en) | 2014-07-23 |
| CN103939936B 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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Cited By (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 |
| CN114294673A (en) * | 2021-12-31 | 2022-04-08 | 江苏国信协联能源有限公司 | Rotary air preheater sealing system sealed by adopting compressed air curtain |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100243198A1 (en) * | 2009-03-24 | 2010-09-30 | Alstom Technology Ltd | Apparatus and method for modifying a modular air preheater |
| 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 |
-
2014
- 2014-04-24 CN CN201410166233.9A patent/CN103939936B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100243198A1 (en) * | 2009-03-24 | 2010-09-30 | Alstom Technology Ltd | Apparatus and method for modifying a modular air preheater |
| 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 |
Cited By (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 |
| CN114294673A (en) * | 2021-12-31 | 2022-04-08 | 江苏国信协联能源有限公司 | Rotary air preheater sealing system sealed by adopting compressed air curtain |
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| CN103939936B (en) | 2016-04-06 |
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