CN204923058U - Variation type quartering storehouse rotation air preheater - Google Patents
Variation type quartering storehouse rotation air preheater Download PDFInfo
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- CN204923058U CN204923058U CN201520498289.4U CN201520498289U CN204923058U CN 204923058 U CN204923058 U CN 204923058U CN 201520498289 U CN201520498289 U CN 201520498289U CN 204923058 U CN204923058 U CN 204923058U
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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 utility model discloses a variation type quartering storehouse rotation air preheater, it includes around the Center axle pivoted rotor, the diametric(al) longitudinal symmetry of rotor arranged totally four narrow sector plates, diametric(al) upper end or lower extreme at the rotor still are provided with wide sector plate, diametric(al) lower extreme or upper end at the rotor are being provided with sector plate group with wide sector plate longitudinal symmetry position, sector plate group both sides set up to two narrow sector plates of sector plate group, sector plate group middle part sets up the dead slot into sector plate group, the sector plate group dead slot of lower extreme or upper end is connected with cold junction secondary wind box or hot junction secondary wind box. The utility model discloses a multiple deformation is all based on following principles of design: formed the gas -tight silo of a malleation in air chamber and flue gas storehouse through the overgrate air of introducing the malleation promptly, the pressure of gas -tight silo is the same with the secondary wind pressure, keeps apart a wind with the flue gas storehouse, realizes omiting the sealed effect that is superior to quartering storehouse air heater.
Description
Technical field
The utility model relates to the coal-burning boiler air and gas system of the industry such as thermal power generation, chemical industry, refers to anomaly four points of storehouse rotary regenerative air heaters particularly.
Background technology
For the rotary regenerative air preheater of coal-burning boiler air and gas system, referred to as rotary regenerative air heater, there is Liang Fencang, three Fen Cang and four point storehouse pattern.Rotary regenerative air preheater, as shown in Figure 1, comprises the rotor 5 rotated around central shaft 8, rotor 5 comprise the some radial dividing plate 6 be fixedly connected with described central shaft 8 separate and the fan-shaped storehouse, some bases that formed, basic fan-shaped storehouse is provided with 48 usually.The hot junction of rotor is fixedly installed fanning strip and corresponding bellows storehouse with cold junction (upper and lower end) by demand.The hot junction of rotor is communicated with bellows storehouse with the territory, storehouse of cold junction without fanning strip, and bellows storehouse, by the bellows storehouse baffle for separating perpendicular to each fanning strip, is wherein provided with bellows storehouse dividing plate on the downside of cold end sector plate; Bellows storehouse dividing plate is provided with on the upside of cold end sector plate.
The air and gas system multiselect three warehouse separated type air preheaters of the large sized unit coal-burning boiler of China, it comprises a flue gas storehouse, a Secondary Air storehouse and a First air storehouse, and its shortcoming is that primary air pressure is high, and the air capacity of the flue gas that bleeds is large.In order to energy-saving and emission-reduction, except large circulating fluidized bed boiler selects four points of storehouse air preheaters, 600MW ~ 1000MW level large sized unit has started to select four points of storehouse air preheaters.The Secondary Air storehouse of three warehouse separated type air preheaters " is divided into two " by existing four points of storehouse air preheaters, the Secondary Air storehouse forming two sectorial areas identical clips a First air storehouse, compared with three warehouse separated type air preheaters, while reduction air leak rate of air curtain and air-introduced machine energy consumption, association can go out some problems, such as: body construction is more complicated; Remove the secondary air temperature of boiler low (about low 2 DEG C-5 DEG C), high fume temperature, reduce boiler efficiency; Secondary Air interface is many, and secondary air system is complicated, increases secondary air duct design and construction difficulty; One time air channel needs to dodge secondary air duct, increases an air channel design and construction difficulty; The resistance in region, Secondary Air storehouse increases, and the local flow resistance of secondary air duct and on-way resistance increase, and increase the energy consumption of pressure fan; The resistance in region, First air storehouse increases, and the local flow resistance in an air channel and on-way resistance increase, and the operating flux of primary air fan increases, and increases the energy consumption of primary air fan; Increase steel consumption; Etc..If by Secondary Air storehouse identical for two sectorial areas, by the Secondary Air storehouse wherein becoming a Secondary Air storehouse and become suitable with three warehouse separated type air preheaters, another Secondary Air storehouse becomes the little Secondary Air storehouse be confined within fan-shaped storehouse, a basis, pressure in little Secondary Air storehouse is close with secondary wind pressure, can be referred to as secondary wind pressure chamber.Like this, the anomaly obtained four points of storehouse rotary regenerative air heaters, can solve preferably, even fundamentally solve the problem of existing four points of storehouse rotary regenerative air heater institutes association.
Anomaly four points of storehouse rotary regenerative air heaters, except the scheme of " modified trisector air heater " (patent No. ZL20142063355.7) of having authorized, also have various deformation, with the otherness demand of satisfied different enterprise.
Utility model content
The purpose of this utility model is to overcome that existing air-heater leakage amount is large, cost is high, and proposes anomaly four points of storehouse rotary regenerative air heaters.
The utility model realizes by following technical scheme:
Anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor around central axis, and described rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate that is fixedly connected with described central shaft is separated to form;
Totally four pieces of narrow fanning strips are arranged up and down symmetrically in the diametric(al) of described rotor; Wide fanning strip is also provided with in the diametric(al) upper end of described rotor or lower end; In the diametric(al) lower end of described rotor or upper end, the upper and lower symmetric position of described wide fanning strip is being provided with fanning strip group; Described fanning strip group both sides are set to two pieces of narrow fanning strips of fanning strip group; Fanning strip group dead slot is set in the middle part of described fanning strip group; The described fanning strip group dead slot of lower end or upper end is connected with cold junction secondary air box or hot junction secondary air box;
The fan-shaped storehouse runner of described rotor is divided into flue gas storehouse, First air storehouse, Secondary Air storehouse; Described fanning strip is all provided with between described flue gas storehouse and described Secondary Air storehouse, between described Secondary Air storehouse and described First air storehouse; Described flue gas storehouse and described First air storehouse are provided with described wide fanning strip and described fanning strip group.
Described fanning strip, the narrow fanning strip of described fanning strip group and described fanning strip group dead slot width are greater than fan-shaped storehouse, two bases, and are less than fan-shaped storehouse, three bases; Described wide fanning strip width is greater than fan-shaped storehouse, six bases, and is less than fan-shaped storehouse, seven bases.
The utility model also can adopt following technical scheme to realize: anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor around central axis, described rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate that is fixedly connected with described central shaft is separated to form, and is furnished with totally four pieces of narrow fanning strips up and down symmetrically in the diametric(al) of described rotor; Wide fanning strip is also provided with in the diametric(al) lower end of described rotor; Also have and the wide fanning strip of the symmetrically arranged bar hole of described wide fanning strip in the diametric(al) upper end of described rotor; The fan-shaped storehouse runner of described rotor is divided into flue gas storehouse, First air storehouse and Secondary Air storehouse; Described wide fanning strip and the wide fanning strip of described bar hole is provided with between described flue gas storehouse and described First air storehouse; All fanning strip is provided with between described flue gas storehouse and described Secondary Air storehouse, between described Secondary Air storehouse and described First air storehouse; The wide fanning strip of described bar hole is provided with bar hole; Described bar hole is connected with hot junction secondary air box.Described fanning strip width is greater than fan-shaped storehouse, two bases, and is less than fan-shaped storehouse, three bases; The wide fanning strip of described bar hole and described wide fanning strip width are greater than fan-shaped storehouse, four bases, and are less than fan-shaped storehouse, five bases.
The utility model also can adopt following technical scheme to realize: anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor around central axis, described rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate that is fixedly connected with described central shaft is separated to form, and it is characterized in that: be furnished with totally four pieces of narrow fanning strips up and down symmetrically in the diametric(al) of described rotor; The diametric(al) of described rotor is also furnished with fanning strip group up and down symmetrically; Described fanning strip group both sides are set to two pieces of narrow fanning strips of fanning strip group; Fanning strip group dead slot is set in the middle part of described fanning strip group; Lower end is connected with cold junction secondary air box or hot junction secondary air box respectively with the described fanning strip group dead slot of upper end; The fan-shaped storehouse runner of described rotor is divided into flue gas storehouse, First air storehouse, Secondary Air storehouse; Described fanning strip is all provided with between described flue gas storehouse and described Secondary Air storehouse, between described Secondary Air storehouse and described First air storehouse; Described flue gas storehouse and described First air storehouse are provided with described fanning strip group; Described fanning strip, the narrow fanning strip of described fanning strip group and described fanning strip group dead slot width are greater than fan-shaped storehouse, two bases, and are less than fan-shaped storehouse, three bases.
The various deformation of the utility model anomaly four points of storehouse rotary regenerative air heaters and modified trisector air heater are all based on following principle design: namely define the gas-tight silo of a malleation in First air storehouse and flue gas storehouse by the Secondary Air introducing malleation, the pressure of gas-tight silo enters mutually with secondary wind pressure, equally First air and flue gas storehouse are isolated, therefore, it is possible to realize the sealing effectiveness being slightly better than four points of storehouse air preheaters.But version and connecting pipe and traditional three points of storehouse air preheaters similar, the secondary air temperature (about high 2 DEG C-5 DEG C) of boiler can be improved compared with point storehouse air preheater, reduce exhaust gas temperature, improve boiler efficiency; Secondary Air interface is few, and secondary air system is simple, facilitates design and construction; Subtract the energy consumption of pressure fan and primary air fan; Reduce steel consumption, production cost relative moderate.。Few compared with existing three points of storehouses, air leak rate of air curtain is low, can reduce the energy consumption of air-introduced machine.But enterprise oneself wish selects a kind of novel air preheater.
Accompanying drawing explanation
Fig. 1 is rotary regenerative air preheater rotor basic structure schematic diagram.
Fig. 2 is (and anomaly four points of storehouse rotary regenerative air heater II type lower ends, anomaly four points of storehouse rotary regenerative air heater I type upper ends; Anomaly four points of storehouse rotary regenerative air heater III type lower ends) cross sectional representation.
Fig. 3 is (and anomaly four points of storehouse rotary regenerative air heater II type upper ends, anomaly four points of storehouse rotary regenerative air heater I type lower ends; Anomaly four points of storehouse rotary regenerative air heater IV type upper ends; Anomaly four points of storehouse rotary regenerative air heater IV type lower ends; ) cross sectional representation.
Fig. 4 is fanning strip group structural representation.
Fig. 5 is anomaly four points of storehouse rotary regenerative air heater III type upper end cross sectional representation.
Fig. 6 is anomaly four points of storehouse rotary regenerative air heater I type point storehouses and air and gas system schematic diagram.
Fig. 7 is anomaly four points of storehouse rotary regenerative air heater II types (and anomaly four points of storehouse rotary regenerative air heater III types) point storehouse and air and gas system schematic diagram.
Fig. 8 is anomaly four points of storehouse rotary regenerative air heater IV type point storehouses and air and gas system schematic diagram.
Fig. 9 is that the fume side radial direction of First air is leaked out path schematic diagram.
In figure: flue gas storehouse 1; First air storehouse 2; Secondary Air storehouse 3; Narrow fanning strip 41; The wide fanning strip 42 of bar hole; Bar hole 421; Wide fanning strip 43; Fanning strip group 44; The narrow fanning strip 45 of fanning strip group; Fanning strip group dead slot 46; Rotor 5; Radial dividing plate 6; Little Secondary Air storehouse 7; Central shaft 8; Bellows storehouse dividing plate 9.
Detailed description of the invention
Performance of the present utility model is described in detail below in conjunction with accompanying drawing:
Embodiment 1 (anomaly four points of storehouse rotary regenerative air heater I types, II types; Referred to as variation I type and variation II type):
Anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor 5 rotated around central shaft 8, and rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate 6 that is fixedly connected with central shaft 8 is separated to form;
Totally four pieces narrow fanning strips 41 are furnished with up and down symmetrically in the diametric(al) of rotor 5; Wide fanning strip 43 is also provided with in the diametric(al) upper end of rotor 5 or lower end; In the diametric(al) lower end of rotor 5 or upper end, wide fanning strip about 43 symmetric position is being provided with fanning strip group 44; Fanning strip group 44 both sides are set to two pieces of narrow fanning strips 45 of fanning strip group; Fanning strip group dead slot 46 is set in the middle part of fanning strip group 44; The fanning strip group dead slot 46 of lower end or upper end is connected with cold junction secondary air box or hot junction secondary air box, constitutes little Secondary Air storehouse 7 so herein;
The fan-shaped storehouse runner of rotor 5 is divided into flue gas storehouse 1, First air storehouse 2, Secondary Air storehouse 3; Fanning strip 41 is all provided with between flue gas storehouse 1 and Secondary Air storehouse 3, between Secondary Air storehouse 3 and First air storehouse 2; Flue gas storehouse 1 and First air storehouse 2 are provided with wide fanning strip 43 and fanning strip group 44.
Fanning strip 41, the narrow fanning strip of fanning strip group 45 and fanning strip group dead slot 46 width are greater than fan-shaped storehouse, two bases, and are less than fan-shaped storehouse, three bases; Wide fanning strip 43 width is greater than fan-shaped storehouse, six bases, and is less than fan-shaped storehouse, seven bases.
Embodiment 2 (anomaly four points of storehouse rotary regenerative air heater III types are called for short variation III type):
Anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor 5 rotated around central shaft 8, and rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate 6 that is fixedly connected with central shaft 8 is separated to form;
Totally four pieces narrow fanning strips 41 are furnished with up and down symmetrically in the diametric(al) of rotor 5; Wide fanning strip 43 is also provided with in the diametric(al) lower end of rotor 5; Also have and the wide fanning strip 42 of the symmetrically arranged bar hole of wide fanning strip 43 in the diametric(al) upper end of rotor 5;
The fan-shaped storehouse runner of rotor 5 is divided into flue gas storehouse 1, First air storehouse 2 and Secondary Air storehouse 3; Wide fanning strip 43 and the wide fanning strip 42 of bar hole is provided with between flue gas storehouse 1 and First air storehouse 2; Fanning strip 41 is all provided with between flue gas storehouse 1 and Secondary Air storehouse 3, between Secondary Air storehouse 3 and First air storehouse 2;
The wide fanning strip 42 of bar hole is provided with bar hole 421; Bar hole 421 is connected with hot junction secondary air box, constitutes little Secondary Air storehouse 7 so herein.
Fanning strip 41 width is greater than fan-shaped storehouse, two bases, and is less than fan-shaped storehouse, three bases; The wide fanning strip of bar hole 42 and wide fanning strip 43 width are greater than fan-shaped storehouse, four bases, and are less than fan-shaped storehouse, five bases.
Embodiment 3 (anomaly four points of storehouse rotary regenerative air heater IV types are called for short variation IV type):
Anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor 5 rotated around central shaft 8, rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate 6 that is fixedly connected with central shaft 8 is separated to form, and is furnished with totally four pieces narrow fanning strips 41 up and down symmetrically in the diametric(al) of rotor 5;
The diametric(al) of rotor 5 is also furnished with fanning strip group 44 up and down symmetrically; Fanning strip group 44 both sides are set to two pieces of narrow fanning strips 45 of fanning strip group; Fanning strip group dead slot 46 is set in the middle part of fanning strip group 44; Lower end is connected with cold junction secondary air box or hot junction secondary air box respectively with the fanning strip group dead slot 46 of upper end, constitutes little Secondary Air storehouse 7 so herein;
The fan-shaped storehouse runner of rotor 5 is divided into flue gas storehouse 1, First air storehouse 2, Secondary Air storehouse 3; Fanning strip 41 is all provided with between flue gas storehouse 1 and Secondary Air storehouse 3, between Secondary Air storehouse 3 and First air storehouse 2; Flue gas storehouse 1 and First air storehouse 2 are provided with fanning strip group 44;
Fanning strip 41, the narrow fanning strip of fanning strip group 45 and fanning strip group dead slot 46 width are greater than fan-shaped storehouse, two bases, and are less than fan-shaped storehouse, three bases.
In above-described embodiment, the secondary air duct that little Secondary Air storehouse 7 connects is more much smaller than four points of conventional storehouse air preheaters, and structure is simple, and cost also greatly reduces.
IV type that wherein makes a variation changes minimum compared with existing four points of storehouse air preheaters, is the most easily understood by people and accepts.
II type that makes a variation does not have cold Secondary Air interface with the cold junction in the little Secondary Air storehouse 7 of variation III type, and compared with existing four points of storehouse air preheaters and IV type that makes a variation, structure is simple, easily manufactured; The air flowed out from hot junction, little Secondary Air storehouse 7, for once wind leaks out, and does not have Secondary Air, and flow is few, and it takes advantage of a situation and sends into hot secondary air duct by available less pipeline.
The existing four points of storehouse air preheaters of I type that makes a variation are compared, and structure is also simple, and cold junction temperature is low, and the mushroom distortion of rotor 5 is little, manufactures more convenient; A part of heat primary air in " little Secondary Air storehouse 7 " hot junction leaks out, and backheat heat accumulating element, and heat accumulating element enters cold junction low-temperature flue gas storehouse after heating up time, condensation and possibility that corrosion occurs will reduce, and air preheater occurs to block up grey possibility and also decreases; Leak through the cold First air come to mix simultaneously at b place and a place, b place is leaked and also raises to c place air themperature, radial leakage also can reduce to the air capacity of fume side.Therefore, the radial inleakage of I type that makes a variation can not be larger than existing four points of storehouse rotary regenerative air preheaters, the flue gas flow of corresponding air-introduced machine and the secondary air flow of pressure fan smaller, total power consumption (energy consumption) of blower fan is lower.In addition, the First air flowed out from " little Secondary Air storehouse 7 " cold junction leaks out and causes cold secondary air duct by small pipeline, should be noted that First air leaks out and carry the problem that a small amount of dust may deposit when this small pipeline is arranged.
Claims (5)
1. anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor (5) rotated around central shaft (8), described rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate (6) that is fixedly connected with described central shaft (8) is separated to form, and it is characterized in that:
Totally four pieces of narrow fanning strips (41) are furnished with up and down symmetrically in the diametric(al) of described rotor (5); Wide fanning strip (43) is also provided with in the diametric(al) upper end of described rotor (5) or lower end; In the diametric(al) lower end of described rotor (5) or upper end, the upper and lower symmetric position of described wide fanning strip (43) is being provided with fanning strip group (44); Described fanning strip group (44) both sides are set to two pieces of narrow fanning strips of fanning strip group (45); Described fanning strip group (44) middle part is set to fanning strip group dead slot (46); The described fanning strip group dead slot (46) of lower end or upper end is connected with cold junction secondary air box or hot junction secondary air box;
The fan-shaped storehouse runner of described rotor (5) is divided into flue gas storehouse (1), First air storehouse (2), Secondary Air storehouse (3); Between described flue gas storehouse (1) and described Secondary Air storehouse (3), between described Secondary Air storehouse (3) and described First air storehouse (2), be all provided with described fanning strip (41); Described flue gas storehouse (1) and described First air storehouse (2) are provided with described wide fanning strip (43) and described fanning strip group (44).
2. anomaly according to claim 1 four points of storehouse rotary regenerative air heaters, is characterized in that:
Described fanning strip (41), the narrow fanning strip of described fanning strip group (45) and described fanning strip group dead slot (46) width are greater than fan-shaped storehouse, two bases, and are less than fan-shaped storehouse, three bases; Described wide fanning strip (43) width is greater than fan-shaped storehouse, six bases, and is less than fan-shaped storehouse, seven bases.
3. anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor (5) rotated around central shaft (8), described rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate (6) that is fixedly connected with described central shaft (8) is separated to form, and it is characterized in that:
Totally four pieces of narrow fanning strips (41) are furnished with up and down symmetrically in the diametric(al) of described rotor (5); Wide fanning strip (43) is also provided with in the diametric(al) lower end of described rotor (5); Also have and the wide fanning strip of the symmetrically arranged bar hole of described wide fanning strip (43) (42) in the diametric(al) upper end of described rotor (5);
The fan-shaped storehouse runner of described rotor (5) is divided into flue gas storehouse (1), First air storehouse (2) and Secondary Air storehouse (3); Described wide fanning strip (43) and the wide fanning strip of described bar hole (42) is provided with between described flue gas storehouse (1) and described First air storehouse (2); Between described flue gas storehouse (1) and described Secondary Air storehouse (3), between described Secondary Air storehouse (3) and described First air storehouse (2), be all provided with fanning strip (41);
The wide fanning strip of described bar hole (42) is provided with bar hole (421); Described bar hole (421) is connected with hot junction secondary air box.
4. anomaly according to claim 3 four points of storehouse rotary regenerative air heaters, is characterized in that:
Described fanning strip (41) width is greater than fan-shaped storehouse, two bases, and is less than fan-shaped storehouse, three bases; The wide fanning strip of described bar hole (42) and described wide fanning strip (43) width are greater than fan-shaped storehouse, four bases, and are less than fan-shaped storehouse, five bases.
5. anomaly four points of storehouse rotary regenerative air heaters, it comprises the rotor (5) rotated around central shaft (8), described rotor comprises the fan-shaped storehouse, some bases that the some radial dividing plate (6) that is fixedly connected with described central shaft (8) is separated to form, and it is characterized in that: be furnished with totally four pieces of narrow fanning strips (41) up and down symmetrically in the diametric(al) of described rotor (5);
The diametric(al) of described rotor (5) is also furnished with fanning strip group (44) up and down symmetrically; Described fanning strip group (44) both sides are set to two pieces of narrow fanning strips of fanning strip group (45); Described fanning strip group (44) middle part is set to fanning strip group dead slot (46); Lower end is connected with cold junction secondary air box or hot junction secondary air box respectively with the described fanning strip group dead slot (46) of upper end;
The fan-shaped storehouse runner of described rotor (5) is divided into flue gas storehouse (1), First air storehouse (2), Secondary Air storehouse (3); Between described flue gas storehouse (1) and described Secondary Air storehouse (3), between described Secondary Air storehouse (3) and described First air storehouse (2), be all provided with described fanning strip (41); Described flue gas storehouse (1) and described First air storehouse (2) are provided with described fanning strip group (44);
Described fanning strip (41), the narrow fanning strip of described fanning strip group (45) and described fanning strip group dead slot (46) width are greater than fan-shaped storehouse, two bases, and are less than fan-shaped storehouse, three bases.
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| 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 |
| CN107631320A (en) * | 2017-08-15 | 2018-01-26 | 阳城国际发电有限责任公司 | A kind of anti-blocking grey method of air preheater |
| CN107702134A (en) * | 2017-10-17 | 2018-02-16 | 杭州意能电力技术有限公司 | Air preheater and its four points of storehouse method of ventilations |
| CN108019771A (en) * | 2017-10-13 | 2018-05-11 | 南京博沃科技发展有限公司 | It is a kind of that the air preheater directly to leak out is reduced using rotor rolling action |
| CN108050535A (en) * | 2018-01-25 | 2018-05-18 | 湖南省湘电试验研究院有限公司 | Station boiler rotary regenerative air preheater and flue gas-air heat-exchange system |
| CN109631076A (en) * | 2019-01-09 | 2019-04-16 | 李康康 | A kind of air preheater |
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| 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 |
| CN107631320A (en) * | 2017-08-15 | 2018-01-26 | 阳城国际发电有限责任公司 | A kind of anti-blocking grey method of air preheater |
| CN108019771A (en) * | 2017-10-13 | 2018-05-11 | 南京博沃科技发展有限公司 | It is a kind of that the air preheater directly to leak out is reduced using rotor rolling action |
| CN108019771B (en) * | 2017-10-13 | 2019-06-07 | 南京博沃科技发展有限公司 | It is a kind of to reduce the air preheater directly to leak out using rotor rolling action |
| CN107702134A (en) * | 2017-10-17 | 2018-02-16 | 杭州意能电力技术有限公司 | Air preheater and its four points of storehouse method of ventilations |
| CN108050535A (en) * | 2018-01-25 | 2018-05-18 | 湖南省湘电试验研究院有限公司 | Station boiler rotary regenerative air preheater and flue gas-air heat-exchange system |
| CN108050535B (en) * | 2018-01-25 | 2024-03-22 | 湖南省湘电试验研究院有限公司 | Rotary air preheater for power station boiler and flue gas-air heat exchange system |
| CN109631076A (en) * | 2019-01-09 | 2019-04-16 | 李康康 | A kind of air preheater |
| CN109631077A (en) * | 2019-01-09 | 2019-04-16 | 李康康 | A kind of rotary regenerative air preheater for coal-burning boiler |
| CN111306568A (en) * | 2020-02-26 | 2020-06-19 | 华电电力科学研究院有限公司 | Device and method for relieving blockage of rotary air preheater by preheating heat storage element through hot air |
| CN112762475A (en) * | 2021-02-26 | 2021-05-07 | 西安热工研究院有限公司 | Self-blowing ash blocking prevention system of rotary air preheater of coal-fired boiler |
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