CN102213191A - Device and method for preventing rotor blade of wind driven generator from freezing - Google Patents
Device and method for preventing rotor blade of wind driven generator from freezing Download PDFInfo
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- CN102213191A CN102213191A CN2011101318003A CN201110131800A CN102213191A CN 102213191 A CN102213191 A CN 102213191A CN 2011101318003 A CN2011101318003 A CN 2011101318003A CN 201110131800 A CN201110131800 A CN 201110131800A CN 102213191 A CN102213191 A CN 102213191A
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Abstract
The invention relates to a device for preventing rotor blade of wind driven generator for freezing, and the device provided by the invention comprises a blade, a monitoring system, a control system and a heating system which is connected with the surface of the blade, wherein the monitoring system is used for monitoring a frozen parameter of an environment in which the blade is positioned, and transmitting the frozen parameter to the control system; when the frozen parameter meets a preset freezing condition, the control system sends an enabled instruction to the heating system; and the heating system is electrified to heat according to the enabled instruction, and transfers the heat to the surface of the blade. According to the invention, a mode of combining the heating device with a coating which the advantages of high modulus of elasticity, low surface energy and age resistance is adopted, thus the dead weight of the blade is greatly reduced, and excellent conductive heat stability is achieved; and meanwhile, the device provided by the invention has the advantages of simple process and convenience in use as well as check and maintenance, and ensures that the wind generating set can operate normally under the frozen weather condition without interference, thereby reducing the abrasion of the wind generating set and improving the service life and availability of the wind generating set.
Description
Technical field
The present invention relates to technical field of wind power generating equipment, relate in particular to a kind of aero-generator rotor blade ice protection equipment and method.
Background technique
Wind energy power is at present domestic and international green novel energy source project in the ascendant.The operation or when static, the phenomenon of freezing usually appears in blade surface under the bigger environmental conditions of low temperature and humidity of existing a lot of aero-generator rotor blade.
The harm that produces after aero-generator rotor blade is frozen has:
1, the physical appearance of blade changes, and causes blade wind-engaging ability to reduce.And the balance of vane group is damaged, and the generator set wearing and tearing increase, and not only reduce the generated energy of generator set, and the life-span and the safety of generator set is caused very big influence;
Deadweight increased when 2, blade froze, and caused the load of generator set to strengthen, thereby increased the mechanical wear of generator set.
Eliminating at present the blade method that adopts usually of freezing is: freeze at blade and shut down deicing to a certain degree the time; such as waiting for temperature change nature ice-melt or beaing deicing; this kind method greatly influences the generated energy of generator set, and may cause damage to generator set because of beaing.
Summary of the invention
Main purpose of the present invention is to provide a kind of aero-generator rotor blade ice protection equipment and method, is intended to solve the ice formation issues of aero-generator rotor blade, improves the working life of wind power generating set.
In order to achieve the above object, the present invention proposes a kind of aero-generator rotor blade ice protection equipment, comprises blade, supervisory system, control system and the heat-generating system that contacts with described blade surface; Wherein:
Supervisory system is monitored the icing parameter of blade place environment, and described icing parameter is sent to control system; When described control system reaches predetermined ice-formation condition in described icing parameter, send enabled instruction to heat-generating system; Described heat-generating system is according to described enabled instruction heating power, and with the heat transferred blade surface.
Preferably, described heat-generating system comprises isolation layer and heater members, and described isolation layer is coated on described blade surface, and described heater members is coated on outside the described isolation layer; Described heater members is connected with external power supply by power line.
Preferably, described heat-generating system further comprises sheetmetal, and described sheetmetal is coated on described heater members skin; Described sheetmetal comprise following one of at least: steel plate, aluminium sheet, copper coin, zine plate and corrosion resistant plate.
Preferably, the internal surface of described sheetmetal is coated with the anticorrosive paint layer; The outer surface of described sheetmetal is coated with the protective coating layer of high elastic modulus, low-surface-energy, ageing resistance.
Preferably, described heater members comprise following one of at least: electric heating wire, electric heating film and electric heating piece; Described electric heating film comprise following one of at least: PET electric heating film, Kapton electric heating film, Furtulon cloth electric heating film, silica-gel electrothermic film, mica electric heating film and far infrared carbon film electric heating film; Described electric heating piece comprise following one of at least: mica heating sheet, PTC heating sheet and ceramic heating plate.
Preferably, described blade, isolation layer, heater members and sheetmetal Placement each other comprise following one of at least:, machine riveting bonding by elastic coating parcel, adhesive and bolt connect.
Preferably, described icing parameter comprises wind speed, the temperature and humidity of outdoor environment, and blade surface and temperature inside.
Preferably, the voltage rating of described heat-generating system is 90V-380V, and anti-freeze holding temperature is 5 ℃-80 ℃.
Preferably, described supervisory system comprises: outside humidity probe, outdoor temperature probe, outdoor wind speed probe, blade surface temp probe and blade interior temp probe.
The present invention also proposes the anti-freeze method of a kind of aero-generator rotor blade, may further comprise the steps:
Supervisory system is monitored the icing parameter of blade place environment, and described icing parameter is sent to control system;
When described control system reaches predetermined ice-formation condition in described icing parameter, send enabled instruction to heat-generating system;
Described heat-generating system is according to described enabled instruction heating power, and with the heat transferred blade surface, prevents that blade from freezing.
Preferably, described icing parameter comprises wind speed, the temperature and humidity of outdoor environment, and blade surface and temperature inside.
A kind of aero-generator rotor blade ice protection equipment and method that the present invention proposes, monitor the icing parameter of blade surrounding environment in real time by supervisory system, when control system reaches predetermined ice-formation condition in the parameter of freezing, start the heat-generating system heating power, with the heat transferred blade surface, prevent that blade from freezing by heat-generating system.The present invention simultaneously uses the high-elastic coating parcel of low-surface-energy at the outermost surface of the heater members of heat-generating system, has easy construction, do not influence the hydrodynamic performance of blade, reduce ice cube to greatest extent to the adhering to of blade, and have good anti-dust storm frictional behavior; Therefore, the present invention adopts heater members and high elastic modulus, low-surface-energy, the combined mode of ageing resistance coating, both can greatly reduce the deadweight of blade, can have splendid conductive heater stability again; And technology of the present invention is simple, maintenance and inspection and easy to use, but ensure that wind power generating set proper functioning under the weather conditions that freeze is interference-free, reduced wearing and tearing to generator set, improved the life-span and the availability of generator set.
Description of drawings
Fig. 1 is the structural representation of blade among aero-generator rotor blade ice protection equipment one embodiment of the present invention;
Fig. 2 is aero-generator rotor blade ice protection equipment one an example structure schematic representation of the present invention;
Fig. 3 is the partial sectional view at A place among Fig. 1;
Fig. 4 is the anti-freeze method one embodiment's schematic flow sheet of aero-generator rotor blade of the present invention.
In order to make technological scheme of the present invention clearer, clear, be described in further detail below in conjunction with accompanying drawing.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, one embodiment of the invention proposes a kind of aero-generator rotor blade ice protection equipment, comprises blade 101, supervisory system 401, control system 301 and the heat-generating system 201 that contacts with blade 101 surfaces; Blade 101 is inner by strut 107 support and connection, wherein:
The icing parameter of supervisory system 401 monitoring blades 101 place environment, and the parameter of will freezing sends to control system 301; When control system 301 reaches predetermined ice-formation condition in the parameter of freezing, send enabled instructions to heat-generating system 201; Heat-generating system 201 is according to the enabled instruction heating power, and with heat transferred blade 101 surfaces, prevents that blade 101 from freezing.
As shown in Figure 3, in the present embodiment, heat-generating system 201 comprises isolation layer 102 and heater members 103, and this isolation layer 102 is coated on blade 101 surfaces, and heater members 103 is coated on outside the isolation layer 102; Heater members 103 is connected with external power supply by power line.
Further, for each part that makes blade 101 is heated evenly, be coated with layer of metal thin plate 104 at the skin of heater members 103; This sheetmetal 104 can be steel plate, aluminium sheet, copper coin, zine plate and corrosion resistant plate etc.
Simultaneously, in order to prevent the sheetmetal 104 oxidized corrosion that is affected by the external environment, can apply anticorrosive paint layer 105 at the internal surface of sheetmetal 104; Outer surface at sheetmetal 104 is coated with high elastic modulus, low-surface-energy, the splendid protective coating layer 107 of ageing resistance simultaneously, the outermost surface of sheetmetal 104 is used the high-elastic coating parcel of low-surface-energy, has easy construction, do not influence the hydrodynamic performance of blade, reduce ice cube to greatest extent to the adhering to of blade 101, and have good anti-dust storm frictional behavior; Therefore, present embodiment adopts heater members 103 and the combined mode of ageing resistance coating, both can greatly reduce the deadweight of blade 101, has splendid conductive heater stability again.
Between above-mentioned blade 101 and the isolation layer 102, between isolation layer 102 and the heater members 103 and the Placement between heater members 103 and the sheetmetal 104 can be by the elastic coating parcel, bonding by adhesive, by machine riveting or be bolted to connection etc.
Above-mentioned icing parameter comprises wind speed, the temperature and humidity of outdoor environment, and blade 101 surfaces and temperature inside.
In addition, the voltage rating of control system 301 control heat-generating systems 201 is 90V-380V, and holding temperature is 5 ℃-80 ℃.
The working principle of present embodiment is:
Wind speed, the temperature and humidity of supervisory system 401 monitoring outdoor environments, blade 101 surfaces and temperature inside.Data are passed to control system 301.When environmental conditions had been frozen near blade ice-formation condition or blade, heat-generating systems 201 were opened in control system 301 instructions, and heat-generating system 201 is a heating power, realized anti-freeze and purpose ice-melt.Control system 301 is provided with minimum and high maintenance temperature protection.Minimum and high maintenance temperature that minimum and high maintenance temperature is meant that anti-freeze and ice-melt need keep, present embodiment regulation voltage rating is: 9V-380V, the minimal maintenance temperature: 5 ℃, high maintenance temperature: 80 ℃.Wherein normality insulation resistance, security level, dielectric strength and insulating layer material etc. should meet existing relevant regulations.
The manufacture process of heat-generating system 201 is in the present embodiment:
At first, the outermost surface at blade 101 coats a layer insulating 102.Isolation layer 102 can be a kind of membrane material, also can with coatings repeatedly application form.
Then at the outer coating heater members 103 of isolation layer 102.Heater members 103 can have multiple choices.Aforesaid electric heating wire, electric heating film or electric heating piece etc.Electric heating wire can be PET electric heating film, Kapton electric heating film, Furtulon cloth electric heating film, silica-gel electrothermic film, mica electric heating film, far infrared carbon film electric heating film etc.Electric heating piece is such as being mica heating sheet, PTC heating sheet, ceramic heating plate etc.
Wherein, electric heating wire, electric heating film or electric heating piece can be many groups, by power line all electric heating wire, electric heating film or electric heating piece are together in series, and with external power supply UNICOM.
In addition, electrothermal device 103 being provided with outside blade 101 can be local the setting, also can be that blade 101 is all covered.
Skin at heater members 103 can coat layer of metal thin plate 104 afterwards, so that each part of blade 101 all is heated evenly.The internal layer of sheetmetal 104 should be carried out anti-corrosion treatment; Outer high elastic modulus, low-surface-energy, the splendid protective coating of ageing resistance of applying.
Need to prove that present embodiment equipment not only can play anti-freeze effect to the generator amature blade, but also can play the effect of ice-melt the generator amature blade behind the ice ice.
As shown in Figure 4, one embodiment of the invention proposes the anti-freeze method of a kind of aero-generator rotor blade, comprising:
Step S101, the icing parameter of supervisory system monitoring blade place environment, and the parameter of will freezing sends to control system;
Step S102 when control system reaches predetermined ice-formation condition in the parameter of freezing, sends enabled instruction to heat-generating system;
Step S103, heat-generating system be according to the enabled instruction heating power, and with the heat transferred blade surface, prevent that blade from freezing.
Wherein, icing parameter comprises wind speed, the temperature and humidity of outdoor environment, and blade surface and temperature inside.
The basic principle of the anti-freeze method of present embodiment aero-generator rotor blade sees also above-mentioned aero-generator rotor blade ice protection equipment embodiment's specific descriptions, does not give unnecessary details at this.
Embodiment of the invention aero-generator rotor blade ice protection equipment and method, monitor the icing parameter of blade surrounding environment in real time by supervisory system, when control system reaches predetermined ice-formation condition in the parameter of freezing, start the heat-generating system heating power, with the heat transferred blade surface, prevent that blade from freezing by heat-generating system.The present invention simultaneously uses the high-elastic coating parcel of low-surface-energy at the outermost surface of the heater members of heat-generating system, has easy construction, do not influence the hydrodynamic performance of blade, reduce ice cube to greatest extent to the adhering to of blade, and have good anti-dust storm frictional behavior; Therefore, the present invention adopts heater members and the combined mode of ageing resistance coating, both can greatly reduce the deadweight of blade, has splendid conductive heater stability again; And technology of the present invention is simple, maintenance and inspection and easy to use, but ensure that wind power generating set proper functioning under the weather conditions that freeze is interference-free, reduced wearing and tearing to generator set, improve the life-span and the availability of generator set, had important social benefit and economic benefit.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (11)
1. an aero-generator rotor blade ice protection equipment comprises blade, it is characterized in that, also comprises supervisory system, control system and the heat-generating system that contacts with described blade surface; Wherein:
Supervisory system is monitored the icing parameter of blade place environment, and described icing parameter is sent to control system; When described control system reaches predetermined ice-formation condition in described icing parameter, send enabled instruction to heat-generating system; Described heat-generating system is according to described enabled instruction heating power, and with the heat transferred blade surface.
2. equipment according to claim 1 is characterized in that described heat-generating system comprises isolation layer and heater members, and described isolation layer is coated on described blade surface, and described heater members is coated on outside the described isolation layer; Described heater members is connected with external power supply by power line.
3. equipment according to claim 2 is characterized in that described heat-generating system further comprises sheetmetal, and described sheetmetal is coated on described heater members skin; Described sheetmetal comprise following one of at least: steel plate, aluminium sheet, copper coin, zine plate and corrosion resistant plate.
4. equipment according to claim 3 is characterized in that the internal surface of described sheetmetal is coated with the anticorrosive paint layer; The outer surface of described sheetmetal is coated with the protective coating layer of high elastic modulus, low-surface-energy, ageing resistance.
5. according to each described equipment among the claim 2-4, it is characterized in that, described heater members comprise following one of at least: electric heating wire, electric heating film and electric heating piece; Described electric heating film comprise following one of at least: PET electric heating film, Kapton electric heating film, Furtulon cloth electric heating film, silica-gel electrothermic film, mica electric heating film and far infrared carbon film electric heating film; Described electric heating piece comprise following one of at least: mica heating sheet, PTC heating sheet and ceramic heating plate.
6. equipment according to claim 5 is characterized in that, described blade, isolation layer, heater members and sheetmetal Placement each other comprise following one of at least:, machine riveting bonding by elastic coating parcel, adhesive and bolt connect.
7. equipment according to claim 6 is characterized in that, described icing parameter comprises wind speed, the temperature and humidity of outdoor environment, and blade surface and temperature inside.
8. equipment according to claim 6 is characterized in that, the voltage rating of described heat-generating system is 90V-380V, and anti-freeze holding temperature is 5 ℃-80 ℃.
9. equipment according to claim 8 is characterized in that, described supervisory system comprises: outside humidity probe, outdoor temperature probe, outdoor wind speed probe, blade surface temp probe and blade interior temp probe.
10. the anti-freeze method of aero-generator rotor blade is characterized in that, may further comprise the steps:
Supervisory system is monitored the icing parameter of blade place environment, and described icing parameter is sent to control system;
When described control system reaches predetermined ice-formation condition in described icing parameter, send enabled instruction to heat-generating system;
Described heat-generating system is according to described enabled instruction heating power, and with the heat transferred blade surface, prevents that blade from freezing.
11. method according to claim 10 is characterized in that, described icing parameter comprises wind speed, the temperature and humidity of outdoor environment, and blade surface and temperature inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101318003A CN102213191A (en) | 2011-05-20 | 2011-05-20 | Device and method for preventing rotor blade of wind driven generator from freezing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101318003A CN102213191A (en) | 2011-05-20 | 2011-05-20 | Device and method for preventing rotor blade of wind driven generator from freezing |
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| CN102213191A true CN102213191A (en) | 2011-10-12 |
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| CN2011101318003A Pending CN102213191A (en) | 2011-05-20 | 2011-05-20 | Device and method for preventing rotor blade of wind driven generator from freezing |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661250A (en) * | 2012-05-08 | 2012-09-12 | 国电联合动力技术有限公司 | Anti-freezing fan blade |
| CN102878026A (en) * | 2012-10-16 | 2013-01-16 | 刘中威 | Wind driven generator rotor blade with electrothermal deicing devices |
| CN102890160A (en) * | 2012-10-19 | 2013-01-23 | 华锐风电科技(集团)股份有限公司 | Detecting method and detecting device of wind measuring equipment |
| CN103034271A (en) * | 2013-01-15 | 2013-04-10 | 天津工业大学 | Anti-congelation and anti-icing electric control device of wind driven generator blade |
| CN103277265A (en) * | 2013-05-31 | 2013-09-04 | 中材科技风电叶片股份有限公司 | Anti-icing wind power blade and preparation method of anti-icing wind power blade |
| CN103291560A (en) * | 2013-04-26 | 2013-09-11 | 湘电新能源有限公司 | Anti-icing method of carbon crystal and wind power generator anti-icing system employing method |
| CN104454386A (en) * | 2014-11-24 | 2015-03-25 | 北京金风科创风电设备有限公司 | Icing control method and device for wind generating set |
| CN106321372A (en) * | 2016-11-23 | 2017-01-11 | 重庆大学 | Composite carbon fiber heating element for wind-driven generator blade ice preventing or ice melting |
| CN107829889A (en) * | 2017-11-20 | 2018-03-23 | 浙江运达风电股份有限公司 | A kind of deicing control method and system for wind power generating set |
| CN108474356A (en) * | 2015-12-23 | 2018-08-31 | 维斯塔斯风力系统集团公司 | Improved electric heating heating |
| CN110809673A (en) * | 2017-06-30 | 2020-02-18 | 维斯塔斯风力系统集团公司 | Improved electrothermal heating element |
| CN111963393A (en) * | 2019-05-20 | 2020-11-20 | 江苏金风科技有限公司 | Blade electric heating device, blade, wind generating set and blade ice melting method |
| CN112572808A (en) * | 2020-12-31 | 2021-03-30 | 南京航空航天大学 | Double-layer anti-icing and electric heating structure and wing adopting same |
| CN113931812A (en) * | 2021-10-28 | 2022-01-14 | 浙江大学包头工业技术研究院 | Wind driven generator blade deicing device capable of realizing automatic temperature control |
| CN116493217A (en) * | 2023-04-27 | 2023-07-28 | 南京工程学院 | Composite anti-icing coating and preparation method thereof |
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| CN102661250A (en) * | 2012-05-08 | 2012-09-12 | 国电联合动力技术有限公司 | Anti-freezing fan blade |
| CN102878026A (en) * | 2012-10-16 | 2013-01-16 | 刘中威 | Wind driven generator rotor blade with electrothermal deicing devices |
| CN102878026B (en) * | 2012-10-16 | 2015-02-04 | 刘中威 | Wind driven generator rotor blade with electrothermal deicing devices |
| CN102890160B (en) * | 2012-10-19 | 2014-09-10 | 华锐风电科技(集团)股份有限公司 | Detecting method and detecting device of wind measuring equipment |
| CN102890160A (en) * | 2012-10-19 | 2013-01-23 | 华锐风电科技(集团)股份有限公司 | Detecting method and detecting device of wind measuring equipment |
| CN103034271A (en) * | 2013-01-15 | 2013-04-10 | 天津工业大学 | Anti-congelation and anti-icing electric control device of wind driven generator blade |
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| CN103291560A (en) * | 2013-04-26 | 2013-09-11 | 湘电新能源有限公司 | Anti-icing method of carbon crystal and wind power generator anti-icing system employing method |
| WO2014173043A1 (en) * | 2013-04-26 | 2014-10-30 | 湘电新能源有限公司 | Carbon crystal anti-icing method and wind driven generator anti-icing system employing same |
| CN103277265B (en) * | 2013-05-31 | 2015-07-01 | 中材科技风电叶片股份有限公司 | Anti-icing wind power blade and preparation method of anti-icing wind power blade |
| CN103277265A (en) * | 2013-05-31 | 2013-09-04 | 中材科技风电叶片股份有限公司 | Anti-icing wind power blade and preparation method of anti-icing wind power blade |
| CN104454386A (en) * | 2014-11-24 | 2015-03-25 | 北京金风科创风电设备有限公司 | Icing control method and device for wind generating set |
| CN104454386B (en) * | 2014-11-24 | 2017-08-29 | 北京金风科创风电设备有限公司 | Icing control method and device for wind generating set |
| CN108474356B (en) * | 2015-12-23 | 2021-08-13 | 维斯塔斯风力系统集团公司 | Improved electrothermal heating |
| US11905933B2 (en) | 2015-12-23 | 2024-02-20 | Vestas Wind Systems A/S | Electro-thermal heating |
| CN108474356A (en) * | 2015-12-23 | 2018-08-31 | 维斯塔斯风力系统集团公司 | Improved electric heating heating |
| CN106321372A (en) * | 2016-11-23 | 2017-01-11 | 重庆大学 | Composite carbon fiber heating element for wind-driven generator blade ice preventing or ice melting |
| CN106321372B (en) * | 2016-11-23 | 2019-07-23 | 重庆大学 | Suitable for blade of wind-driven generator it is anti-icing/the compound carbon fiber heater element of ice-melt |
| CN110809673A (en) * | 2017-06-30 | 2020-02-18 | 维斯塔斯风力系统集团公司 | Improved electrothermal heating element |
| CN110809673B (en) * | 2017-06-30 | 2022-04-26 | 维斯塔斯风力系统集团公司 | Improved electrothermal heating element |
| CN107829889B (en) * | 2017-11-20 | 2023-08-29 | 浙江运达风电股份有限公司 | Deicing control method and system for wind generating set |
| CN107829889A (en) * | 2017-11-20 | 2018-03-23 | 浙江运达风电股份有限公司 | A kind of deicing control method and system for wind power generating set |
| CN111963393A (en) * | 2019-05-20 | 2020-11-20 | 江苏金风科技有限公司 | Blade electric heating device, blade, wind generating set and blade ice melting method |
| CN112572808A (en) * | 2020-12-31 | 2021-03-30 | 南京航空航天大学 | Double-layer anti-icing and electric heating structure and wing adopting same |
| CN113931812A (en) * | 2021-10-28 | 2022-01-14 | 浙江大学包头工业技术研究院 | Wind driven generator blade deicing device capable of realizing automatic temperature control |
| CN116493217A (en) * | 2023-04-27 | 2023-07-28 | 南京工程学院 | Composite anti-icing coating and preparation method thereof |
| CN116493217B (en) * | 2023-04-27 | 2024-01-26 | 南京工程学院 | Composite anti-icing coating and preparation method thereof |
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Application publication date: 20111012 |