CN102322405B - Deicing and freeze resisting system for blade of wind generating set - Google Patents
Deicing and freeze resisting system for blade of wind generating set Download PDFInfo
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- CN102322405B CN102322405B CN2011102338875A CN201110233887A CN102322405B CN 102322405 B CN102322405 B CN 102322405B CN 2011102338875 A CN2011102338875 A CN 2011102338875A CN 201110233887 A CN201110233887 A CN 201110233887A CN 102322405 B CN102322405 B CN 102322405B
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Abstract
The invention discloses a deicing and freeze resisting system for a blade of a wind generating set, which comprises a power generator, a gearbox, a main shaft, a hub, a blade and a hot air circulating system, wherein the power generator, the gearbox and the main shaft are connected; the hub is arranged on the main shaft; and the blade is arranged on the hub. The hot air circulating system comprises a three-way pipeline, a pipeline I, a centrifugal fan I, a pipeline II and a centrifugal fan II; the three-way pipeline is arranged on an air outlet of a cooler in the power generator; the pipeline I is arranged at the connected part between the main shaft and the hub and is communicated with a cavity port at one side of the blade; the centrifugal fan I is arranged on an air inlet of the pipeline I; the pipeline II is arranged on an air outlet of the cavity at the other side of the blade; and the centrifugal fan II is arranged on an outlet of the pipeline. The deicing and freeze resisting system disclosed by the invention can be used for circulating the heat generated by the power generator to the interior of the blade; and the heat is used for resisting freeze and deicing. The deicing and freeze resisting system has the advantages of simple structure, simpleness in operation, energy saving and environment friendliness.
Description
Technical field
The present invention relates to a kind of wind-force wind-powered electricity generation unit, be specifically related to the freeze proof system of wind-force wind power generation unit blade deicing.
Background technique
Along with becoming increasingly conspicuous of social energy problem, Climatic issues, environmental problem, the development of renewable energy sources comes into one's own day by day.Wind-power electricity generation has aboundresources, environmental benefit is good, industrialization level is high, cost of electricity-generating is relatively low advantage, has become the important channel of renewable energy utilization.
Along with increasing blower fan stands in low-temperature region, blade has in various degree icing phenomenon in winter, and some wind fields often run into sleet in south, so that blade surface covers ice sheet, has directly affected leafly, and load change is unpredictable.Blower fan system is had a negative impact.
Application number is that the Chinese patent application of CN201010208585 discloses and a kind of wind turbine rotor blade cleaned device with deicing, and this device comes deicing and is provided with lifting device by pump connecting tube and shower nozzle.Application number is that the Chinese patent application of CN201010581255.3 discloses a kind of deicing method, and the method heats by blower input hot air and makes blade flutter shake off ice sheet.It is a kind of for the method to the blade deicing of wind turbine that application number is that 200880110464.0 Chinese patent application discloses, and the method is shaked off ice by actuating mechanism from blade.Existing these deicers all need to arrange in addition power plant or air heating apparatus, remove ice on the blade by injection, flutter etc., not only make complex structure, and consume the energy.
Summary of the invention
For the deficiency that overcomes existing blade de-icing device complex structure, consumes the energy, the object of the invention is to: provide the deicing of a kind of wind-force wind power generation unit blade freeze proof system, this system can be recycled to the heat that generator self produces in the blade, utilize the antifreeze deicing of this heat, this system architecture and simple to operate, and energy saving, economic environmental protection.
The technical solution adopted for the present invention to solve the technical problems is as follows:
The freeze proof system of a kind of wind-force wind power generation unit blade deicing comprises generator, gear-box, main shaft, wheel hub, blade and hot air circulating system; Described generator is connected with gear-box by coupling, and the other end of gear-box links to each other with main shaft, and wheel hub is installed on the main shaft, and blades installation is on wheel hub; Described hot air circulating system comprises three-way pipeline, pipeline I, centrifugal cutter I, pipeline II and centrifugal cutter II, three-way pipeline is located at generator cooler cooling exhaust outlet, pipeline I is located at main shaft axially and the wheel hub joint, and be connected with blade one side cavity mouth, centrifugal cutter I is located at the intake grill of pipeline I, pipeline II is located at blade opposite side cavity exhaust outlet, is provided with centrifugal cutter II at this pipe outlet.Described main shaft is hollow shaft, and main shaft diameter is to having inlet hole, and this inlet hole communicates with pipeline I in the hot air circulating system by the main shaft hollow lumen; Be arranged with the cavity circular cowling in the main shaft pressed on ring, be inlaid with the aeroseal circle between this circular cowling and the main shaft; Described three-way pipeline links to each other with conduction pipe, and this conduction pipe outlet end communicates with the main shaft hollow lumen.
Described generator, gear-box and main shaft are installed on the underframe of cabin, and cabin underframe upper cover has engine room cover; Described generator cooler is located at the generator top, and the three-way pipeline that is located at the cooling exhaust outlet of this cooler is installed in the engine room cover inboard; Entrance at three-way pipeline is equipped with respectively valve.
Because the present invention arranges three-way pipeline at the relief opening of generator, and communicate with the blade cavity by main shaft, the wheel hub that links to each other with pipeline, the hot air that produces when making generator work enters blade one side cavity by three-way pipeline, pipeline I, centrifugal cutter I, carry out air circulation, discharged from the opposite side cavity by centrifugal cutter II again, realize the antifreeze deicing of blade.
Owing to adopting technique scheme, make the present invention compared with prior art, have following beneficial effect:
1, do not establish in addition heating and mechanical device, realize the blade deicing, energy-conserving and environment-protective
The present invention utilizes the heat that generator when work self produce, and in the blade cavity body-internal-circulation, makes the antifreeze deicing of blade, does not establish in addition heating facility, does not also establish in addition mechanical deicing's device, thereby can realize energy-conservationly, is conducive to environmental protection.
2, simple in structure, easy to operate
The present invention is simple in structure, does not need the equipment of operating machine separately during operation, only needs opening and closing valve and fan, thereby simple.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structure and the air circulation conspectus of the freeze proof system of wind-force wind power generation unit blade deicing of the present invention.
Fig. 2 is I section enlarged diagram among Fig. 1.
Fig. 3 is II section enlarged diagram among Fig. 1.
Among the figure, 1. generator, 2. coupling, 3. gear-box, 4. main shaft, 5. three-way pipeline, 6. generator cooler, 7. cabin underframe, 8. engine room cover, 9. pipeline I, 10. centrifugal cutter I, 11. wheel hubs, 12. blade, 13. air guide sleeves, 14. centrifugal cutter II, 15. pipeline II, 16. conduction pipe, 17. cavity A, 18. cavity B, 19. cooling exhaust outlets, 20. the aeroseal circle, 21. valve A, 22. valve B.
Embodiment
Figure 1 shows that an embodiment of the freeze proof system of wind-force wind power generation unit blade deicing of the present invention, this system comprises generator 1, gear-box 3, main shaft 4, wheel hub 11, blade 12 and hot air circulating system.Generator 1 is connected with gear-box 3 by coupling 2, and the other end of gear-box 3 links to each other with main shaft 4.Generator 1, gear-box 3 and main shaft 4 are installed on the cabin underframe 7, and the underframe upper cover has engine room cover 8.Be provided with generator cooler 6 at generator 1 top.As shown in Figure 2, cooler exhaust outlet 19 links to each other with three-way pipeline 5.This three-way pipeline 5 is installed in engine room cover 8 inboards, and each entrance of three-way pipeline 5 is equipped with respectively valve A21 and valve B22.Along engine room cover 8 inboards conduction pipe 16 is housed, this conduction pipe 16 is connected with the valve B22 of three-way pipeline 5.
Hot air circulating system comprises three-way pipeline 5, pipeline I9, centrifugal cutter I10, pipeline II15 and centrifugal cutter II14, three-way pipeline 5 is located at generator cooler cooling exhaust outlet 19, pipeline I9 is located at main shaft 4 axially and wheel hub 11 joints, and be connected with blade 12 1 side cavity mouths, centrifugal cutter I10 is located at the intake grill of pipeline I9, pipeline II15 is located at blade 12 opposite side cavity exhaust outlets, is provided with centrifugal cutter II14 at this pipe outlet.In the present embodiment, hot air circulating system respectively is provided with three equally distributed pipeline I9 and pipeline II15.Main shaft 4 is hollow shaft, and main shaft 4 radially has inlet hole, and this inlet hole communicates with pipeline I10 in the hot air circulating system by the main shaft hollow lumen; Be arranged with the cavity circular cowling in main shaft 4 pressed on rings, be inlaid with aeroseal circle 20 between this circular cowling and the main shaft 4.Three-way pipeline 5 links to each other with conduction pipe 16, and the outlet end that is located at the conduction pipe 16 of engine room cover inboard communicates with main shaft 4 hollow lumen to several inlet holes that have by main shaft diameter.This inlet hole can be 3～4.
Working procedure of the present invention is as follows:
The hot air that produces during generator operation by adjusting the valve switch of three-way pipeline 5 of cabin afterbody, determines the trend of hot air.
When ambient temperature is high, when blade did not have risk of icing, hot air was directly discharged from the cabin afterbody, and this moment, pipeline valve A21 was in out state, and valve B22 is in closed state; When ambient temperature is low, when there was risk of icing in blade, pipeline valve A21 closed, and valve B22 opens.Two centrifugal cutters among Fig. 1 are all opened simultaneously, and hot air circulate is got up.The circulating path of hot air is seen shown in the arrow among Fig. 1.
Difficult point in the hot air circulate process is how to enter the blade cavity by wheel hub.The method that system of the present invention adopts is perforate on main shaft 4, and main shaft is partially sealed, as shown in Figure 3.Hot air flows into seal chamber from conduction pipe 16, collect in the cavity circular cowling, the cavity circular cowling is looped around on the main shaft 4, and 20 sealings of aeroseal circle are arranged between the main shaft, even main shaft 4 when rotated, hot air can not be run out of the cavity circular cowling, but enter main shaft along the hollow spindle radial hole that circular cowling covers, then enter wheel hub 11 from the main shaft axial bore, enter wheel hub 11 after, by centrifugal cutter I10 hot air is squeezed into three uniform pipeline I9, finally enter blade-side cavity A17; Referring to Fig. 1, hot air rises at blade one side cavity A17, then circulate and discharge from opposite side cavity B18, collect the wheel hub top end with three pipeline II15, by centrifugal cutter II14, hot air is come space between air guide sleeve 13 and the wheel hub 11, and final hot air is discharged in the atmosphere by air guide sleeve 13 rear side windows.
Claims (4)
1. the freeze proof system of wind-force wind power generation unit blade deicing, it is characterized in that: the freeze proof system of described blade deicing comprises generator, gear-box, main shaft, wheel hub, blade and hot air circulating system; Described generator is connected with gear-box by coupling, and the other end of gear-box links to each other with main shaft, and wheel hub is installed on the main shaft, and blades installation is on wheel hub; Described hot air circulating system comprises three-way pipeline, pipeline I, centrifugal cutter I, pipeline II and centrifugal cutter II, three-way pipeline is located at generator cooler cooling exhaust outlet, pipeline I is located at main shaft axially and the wheel hub joint, and be connected with blade one side cavity mouth, centrifugal cutter I is located at the intake grill of pipeline I, pipeline II is located at blade opposite side cavity exhaust outlet, is provided with centrifugal cutter II at this pipe outlet; Described main shaft is hollow shaft, and main shaft diameter is to having inlet hole, and this inlet hole communicates with pipeline I in the hot air circulating system by the main shaft hollow lumen; Be arranged with the cavity circular cowling in the main shaft pressed on ring, be inlaid with the aeroseal circle between this circular cowling and the main shaft; Described three-way pipeline links to each other with conduction pipe, and this conduction pipe outlet end communicates with the main shaft hollow lumen.
2. the freeze proof system of wind-force wind power generation unit blade according to claim 1 deicing, it is characterized in that: described generator, gear-box and main shaft are installed on the underframe of cabin, and cabin underframe upper cover has engine room cover; Described generator cooler is located at the generator top, and the three-way pipeline that is located at the cooling exhaust outlet of this cooler is installed in the engine room cover inboard; Entrance at three-way pipeline is equipped with respectively valve.
3. the freeze proof system of wind-force wind power generation unit blade according to claim 1 deicing, it is characterized in that: described conduction pipe is located at the engine room cover inboard, and the outlet end of this conduction pipe communicates with the main shaft hollow lumen to several inlet holes that have by main shaft diameter.
4. the freeze proof system of wind-force wind power generation unit blade according to claim 1 deicing, it is characterized in that: described hot air circulating system respectively is provided with three equally distributed pipeline I and pipeline II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102338875A CN102322405B (en) | 2011-08-16 | 2011-08-16 | Deicing and freeze resisting system for blade of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102338875A CN102322405B (en) | 2011-08-16 | 2011-08-16 | Deicing and freeze resisting system for blade of wind generating set |
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| Publication Number | Publication Date |
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| CN102322405A CN102322405A (en) | 2012-01-18 |
| CN102322405B true CN102322405B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102338875A Active CN102322405B (en) | 2011-08-16 | 2011-08-16 | Deicing and freeze resisting system for blade of wind generating set |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635502A (en) * | 2012-05-08 | 2012-08-15 | 国电联合动力技术有限公司 | Anti-freezing control method for fan |
| CN106257050A (en) * | 2015-06-15 | 2016-12-28 | 北京博比风电科技有限公司 | A kind of blade ice-removing and ice-preventing system design |
| CN110730865B (en) * | 2017-06-16 | 2021-06-22 | 维斯塔斯风力系统集团公司 | Device and method for determining icing risk in a wind turbine |
| CN107676233A (en) * | 2017-11-09 | 2018-02-09 | 华润电力投资有限公司深圳分公司 | A kind of wind power generating set and its blade deicing system |
| CN112727713B (en) * | 2021-01-06 | 2022-05-24 | 株洲时代新材料科技股份有限公司 | Blade deicing system of wind generating set and wind generating set |
| CN113074093B (en) * | 2021-04-29 | 2024-02-23 | 中国华能集团清洁能源技术研究院有限公司 | Wind generating set with heat pump self-deicing system and working method thereof |
| CN113623150A (en) * | 2021-09-08 | 2021-11-09 | 叶县国博大石崖风力发电有限公司 | Blade deicing mechanism for wind driven generator |
| CN116086051A (en) * | 2023-04-11 | 2023-05-09 | 合肥速帆汽车科技有限公司 | Heat pump air conditioner condensing fan with automatic deicing function and use method thereof |
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|---|---|---|---|---|
| WO2009157839A1 (en) * | 2008-06-26 | 2009-12-30 | Oehrvall Fredrik | Device and method for deicing a rotor blade of a wind turbine |
| JP2011064110A (en) * | 2009-09-16 | 2011-03-31 | Wind-Smile:Kk | Wind turbine generator |
| CN102003353A (en) * | 2010-12-10 | 2011-04-06 | 重庆大学 | Deicing method for blades of large-scale wind driven generator |
| CN202181995U (en) * | 2011-08-16 | 2012-04-04 | 国电联合动力技术有限公司 | Deicing and frost-resisting system for blade of wind-power wind generator system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8062431B2 (en) * | 2009-06-16 | 2011-11-22 | General Electric Company | Method and apparatus for cleaning and de-icing wind turbine rotor blades |
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- 2011-08-16 CN CN2011102338875A patent/CN102322405B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009157839A1 (en) * | 2008-06-26 | 2009-12-30 | Oehrvall Fredrik | Device and method for deicing a rotor blade of a wind turbine |
| JP2011064110A (en) * | 2009-09-16 | 2011-03-31 | Wind-Smile:Kk | Wind turbine generator |
| CN102003353A (en) * | 2010-12-10 | 2011-04-06 | 重庆大学 | Deicing method for blades of large-scale wind driven generator |
| CN202181995U (en) * | 2011-08-16 | 2012-04-04 | 国电联合动力技术有限公司 | Deicing and frost-resisting system for blade of wind-power wind generator system |
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| CN102322405A (en) | 2012-01-18 |
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Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130703 |
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Effective date of registration: 20130703 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: Guodian United Power Technology Co., Ltd. Patentee after: Guodian New Energy Technology Institute Address before: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee before: Guodian United Power Technology Co., Ltd. |