CN101338732A - Wind power generator adopting hot pipe for cooling wheel box - Google Patents
Wind power generator adopting hot pipe for cooling wheel box Download PDFInfo
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- CN101338732A CN101338732A CNA2008101241989A CN200810124198A CN101338732A CN 101338732 A CN101338732 A CN 101338732A CN A2008101241989 A CNA2008101241989 A CN A2008101241989A CN 200810124198 A CN200810124198 A CN 200810124198A CN 101338732 A CN101338732 A CN 101338732A
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The present invention relates to an aerogenerator adopting a thermotube to cool a gearbox, which belongs to the technical field of aerogenerators. The aerogenerator mainly comprises a bench (1), a wind wheel (2), a low-speed shaft (3), a gearbox (4), a high-speed shaft (12), a control frequency converter (13), a generator (14) and a cabinet cover (15). The aerogenerator is characterized in that the aerogenerator is also provided with a gravity-assisted thermotube (6), a temperature controller (10) and an electric heater (11); wherein, the gravity-assisted thermotube (6) is connected with the gearbox and used to cool the lubricant (5) in the gearbox; the temperature controller (10) and the electric heater (11) are used to prevent the temperature of the lubricant (5) from becoming too low in winter. The aerogenerator, which does not need to be driven by energy, has the advantages of simple structure, high heat transmission efficiency, low cost, convenient mounting and maintenance, etc.
Description
Technical field
The present invention relates to a kind of wind-driven generator that adopts hot pipe for cooling wheel box, belong to technical field of wind power generation.
Background technique
For the long-time running that realizes that wind-driven generator is efficient, stable, safe, need the necessary cooling unit of configuration in wind-driven generator, work in certain temperature range to guarantee parts such as gear-box, generator and control frequency variator.In view of the structure and the work characteristics of wind-driven generator, adopt two to overlap independently cooling system usually to the cooling of above-mentioned three big parts at present, wherein generator and frequency variator shared overlaps, and gear-box uses a cover separately.For the MW class wind turbine, the cooling of generator and control frequency variator generally need adopt the recycle pump constituent could satisfy the cooling requirement; Gear-box then cools off by recycle pump fuel feeding lubrication system is set separately.
Because heat tube structure is simple, need not driven by energy, therefore has outstanding advantages such as cost is low, operation energy consumption is few, installation and maintenance is easy, aspect the cooling of wind powered generator system is being a potential selection.Consider generator and control frequency variator and around reasons such as parts complex structure, space be narrow and small, can't realize the reasonable Arrangement of heat pipe, the heat that they produce in the course of the work, usually need cool off by the liquid cooling medium that pump drives current downflow, and be disposed to atmosphere by being arranged on the cabin outer plate and fin type air heat exchanger of lid with big coefficient of heat transfer.
And for gear-box, not only simple in structure, and be immersed in the lubricant oil because of the transmission gear shift parts, the heat that produces during motion is mainly absorbed by lubricant oil, and along with the gear rotation, lubricant oil has good mobile and stronger exchange capability of heat, for the application of heat pipe cooling technology provides necessary space and operating conditions.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, wind-driven generator of need not driven by energy, heat transfer efficiency height, cost is low, installation and maintenance are convenient, the lubricant oil use amount is few employing hot pipe for cooling wheel box.
A kind of wind-driven generator that adopts hot pipe for cooling wheel box mainly comprises stand, wind wheel, lower velocity shaft, gear-box, high speed shaft, control frequency variator, generator, cabin lid; Described gear-box links to each other with wind wheel by lower velocity shaft, links to each other with generator by high speed shaft; It is characterized in that also being provided with and link to each other, be used to cool off the gravity assisted heat pipe of lubricant oil in the gear-box, and be used to the temperature controller and the electric heater that prevent that the cold-weather lubrication oil temperature is low excessively with gear-box.
Working principle of the present invention is, nominal operating condition, the earlier lubricated oil of the heat that produces in the gear-box working procedure absorbs, and then absorbed heat is delivered to heat pipe evaporator section via lubricant oil, and working medium is evaporated because of heat absorption in the heat pipe, steam axially rises along heat pipe, and the condensation by the heat pipe condenser section heat release outside the cabin behind the superheater tube adiabatic section, condensed fluid returns evaporator section under action of gravity, begin next evaporation process, circulation so repeatedly realizes the effective cooling to gear-box; In winter, in order to prevent when north cold area is worked, the lubricating oil temperature that causes because of the increase of heat pipe heat exchanging ability is spent low, can control electric heater work by temperature controller, guarantees that lubricant oil is in normal temperature range work.
Compare with the gear-box recycle pump oil cooling system of present employing, have simple in structure, need not driven by energy, heat transfer efficiency height, outstanding advantage such as cost is low, installation and maintenance are easy, the lubricant oil use amount is few.In addition, can also make gear-box maintain the optimum working temperature state by selecting suitable heat-pipe working medium.
Description of drawings
Fig. 1 is the wind-driven generator schematic representation that adopts hot pipe for cooling wheel box.
Fig. 2 is the gravity assisted heat pipe schematic representation.
Label title among Fig. 1: 1. stand, 2. wind wheel, 3. lower velocity shaft, 4. gear-box, 5. lubricant oil, 6. gravity assisted heat pipe, 10. temperature controller, 11. electric heaters, 12. high speed shafts, 13. control frequency variators, 14. generators, 15. cabins lid.
Label title among Fig. 2: 7. working medium, 8. shell, 9. fin, a. evaporator section, b. adiabatic section, c. condensating section.
Embodiment
According to shown in Figure 1, the wind-driven generator of employing hot pipe for cooling wheel box of the present invention mainly comprises stand 1, wind wheel 2, lower velocity shaft 3, gear-box 4, lubricant oil 5, high speed shaft 12, control frequency variator 13, generator 14; It is characterized in that also being provided with gear-box 4 and link to each other, be used to cool off the gravity assisted heat pipe 6 of lubricant oil 5 in the gear-box 4, and be used to the temperature controller 10 and the electric heater 11 that prevent that winter oil 5 temperature are low excessively.
In the wind-power electricity generation working procedure, wind wheel rotates under wind-drive, and its rotating speed reaches gear-box by lower velocity shaft and carries out speedup, links to each other with generator through high speed shaft, produces electric energy thereby drive generator work.In the gear-box working procedure, can produce a large amount of heats, main lubricated oil absorbs, usually requiring that the gear case oil temperature is the highest should be above 80 ℃, and the temperature difference between different bearings must not be above 15 ℃, otherwise can cause the serious consequence that system equipment damages, therefore in order to guarantee wind powered generator system safety, stable, need take effective means that gear-box is effectively cooled off.
We know, for gravity assisted heat pipe, when evaporator section places the bottom, condensating section places top, fills with some suitable working medium 7, as long as there are certain temperature difference in evaporator section and condensating section, just can under the situation that need not the extra power driving, work wherein evaporator section working medium heat absorption, the heat release of condensating section working medium, and when the evaporator section temperature is lower than the condensating section temperature, quit work, thereby keep the constant of evaporator section temperature.
For wind-driven generator wheel-box, the heat that produces during work is mainly absorbed by lubricant oil, causes that the temperature of lubricant oil rises, and need effectively cool off lubricant oil, and then realize the cooling of gear-box.In the working procedure, usually the operating temperature that requires lubricant oil is between 10 ℃-80 ℃, and ambient temperature generally is lower than 40 ℃, therefore can between gear-box inside and nacelle exterior environment, gravity assisted heat pipe be set, and its evaporator section a placed lubricant oil in the gear-box, condensating section c places top, cabin.Gravity assisted heat pipe in the course of the work, liquid working medium absorbs the heat of vaporization of lubricant oil at vaporizing end, the steam that rises is discharged gasification latent heat at the condensation end place by extraneous high velocity air cooling through adiabatic section b and condenses into liquid, condensed fluid is under action of gravity, again return evaporator section, carry out the next round cooling, reciprocal successively, the heat of gear-box generation is pumped into the nacelle exterior environment endlessly the most at last.In addition, in gear-box, be provided with temperature controller, monitor the temperature of lubricant oil in the gear-box in real time.In winter, because the difference of nacelle exterior ambient temperature and lubricating oil temperature obviously increases, the exchange capability of heat of gravity assisted heat pipe strengthens, and makes the gear box lubricating oil temperature may be lower than 10 ℃.When oily temperature was lower than 10 ℃, temperature controller heated the electric heater of control setting in gear-box to lubricant oil, made oily temperature reach the normal working temperature scope, thereby guaranteed the long-term work that wind power generating set is efficient, stable, safe.
According to illustrated in figures 1 and 2, described gravity assisted heat pipe 6 adopts the appropriate tilt angle to arrange, its objective is for liquid refrigerant can reflux smoothly at action of gravity lower edge heat pipe inwall, guarantee the heat pipe proper functioning, also help to improve the condensating section exchange capability of heat when being in tilted layout simultaneously.Evaporator section is immersed in the lubricant oil, because lubricant oil is mobile, the coefficient of heat transfer is bigger, can directly adopt light pipe; The length of adiabatic section is decided according to the actual requirements; And condensating section is in the external environment, and with the cross-ventilation heat exchange, the coefficient of heat transfer is less, and therefore for forced heat exchanging need install fin 9 additional in the condensating section pipe outside usually, working medium then can adopt ammonia or freon according to the cooling requirement.In addition, in the course of the work, the quantity of heat pipe is selected to arrange according to actual heat output.
Compare with the wind power generation gear case cooling system of present employing, adopt the wind-driven generator of hot pipe for cooling wheel box, Have simple in structure, need not driven by energy, heat transfer efficiency height, low, easy to installation and maintenance, the lubricating oil use amount of cost Wait less outstanding advantages, can satisfy the cooling requirement of high-power wind-driven generator. In addition, can also be suitable by selecting Heat-pipe working medium makes gear-box maintain the optimum working temperature state.
Claims (4)
1, a kind of wind-driven generator that adopts hot pipe for cooling wheel box mainly comprises stand (1), wind wheel (2), lower velocity shaft (3), gear-box (4), high speed shaft (12), control frequency variator (13), generator (14), cabin lid (15); Described gear-box (4) links to each other with wind wheel (2) by lower velocity shaft (3), links to each other with generator (14) by high speed shaft (12); It is characterized in that also being provided with gear-box (4) and link to each other, be used to cool off the gravity assisted heat pipe (6) of the interior lubricant oil of gear-box (4) (5), and be used to the temperature controller (10) and the electric heater (11) that prevent that winter oil (5) temperature is low excessively.
2, the wind-driven generator of employing hot pipe for cooling wheel box according to claim 1 is characterized in that: described gravity assisted heat pipe (6), its evaporator section (a) place lubricant oil in the gear-box, and its condensating section (c) stretches out outside the cabin.
3, the wind-driven generator of employing hot pipe for cooling wheel box according to claim 2 is characterized in that: described gravity assisted heat pipe (6), fin (9) is equipped with in its condensating section (c) outside.
4, according to the wind-driven generator of the arbitrary described employing hot pipe for cooling wheel box of claim 1-3, it is characterized in that: described gravity assisted heat pipe (6) is in tilted layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101241989A CN101338732A (en) | 2008-06-17 | 2008-06-17 | Wind power generator adopting hot pipe for cooling wheel box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101241989A CN101338732A (en) | 2008-06-17 | 2008-06-17 | Wind power generator adopting hot pipe for cooling wheel box |
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| CN101338732A true CN101338732A (en) | 2009-01-07 |
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| CNA2008101241989A Pending CN101338732A (en) | 2008-06-17 | 2008-06-17 | Wind power generator adopting hot pipe for cooling wheel box |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052260A (en) * | 2009-10-30 | 2011-05-11 | 通用电气公司 | Method and system for operating a wind turbine |
| CN102297099A (en) * | 2011-08-01 | 2011-12-28 | 南京航空航天大学 | Wind power generator capable of automatically cooling by adopting air circulation system and cooling method for wind power generator |
| CN102449301A (en) * | 2009-12-16 | 2012-05-09 | 三菱重工业株式会社 | Wind powered generator |
| CN102536686A (en) * | 2012-01-10 | 2012-07-04 | 三一电气有限责任公司 | Gear box and wind power generator comprising same |
| CN102563001A (en) * | 2011-12-20 | 2012-07-11 | 大连熵立得传热技术有限公司 | Hydrodynamic coupler with heat pipe type radiating assembly |
| CN102562484A (en) * | 2012-01-16 | 2012-07-11 | 国电联合动力技术有限公司 | Radiating device of wind power generation water cooling system and water cooling system |
| CN102635507A (en) * | 2012-04-24 | 2012-08-15 | 广东明阳风电产业集团有限公司 | Cold starting system of wind generating set |
| CN102777581A (en) * | 2012-07-31 | 2012-11-14 | 南京风电科技有限公司 | Heating and cooling device of wind turbine generator system |
| CN103004060A (en) * | 2010-04-19 | 2013-03-27 | 赛纳维斯有限公司 | Highly integrated energy conversion system for wind, tidal or hydro turbines |
| CN105484949A (en) * | 2016-02-01 | 2016-04-13 | 北京金风科创风电设备有限公司 | Bearing protection method and device of wind driven generator |
| CN105484947A (en) * | 2015-12-21 | 2016-04-13 | 江苏金风科技有限公司 | Cooling device for wind turbine generator system, wind turbine generator system and operation control method |
| GB2534861A (en) * | 2015-01-30 | 2016-08-10 | Marine Current Turbines Ltd | Submersible turbine system |
| WO2017109254A1 (en) * | 2015-12-23 | 2017-06-29 | Alaz-Arima, S.L. | Cooling device for components of wind turbines |
| CN112360706A (en) * | 2020-09-29 | 2021-02-12 | 浙江诺亚氟化工有限公司 | Immersed liquid phase-change cooling medium and application thereof in wind generating set |
| CN112412704A (en) * | 2020-11-20 | 2021-02-26 | 田剑辉 | Power generation windmill with energy-saving and electricity-capacitance functions for power equipment |
-
2008
- 2008-06-17 CN CNA2008101241989A patent/CN101338732A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052260A (en) * | 2009-10-30 | 2011-05-11 | 通用电气公司 | Method and system for operating a wind turbine |
| CN102052260B (en) * | 2009-10-30 | 2016-01-06 | 通用电气公司 | For operating the method and system of wind turbine |
| CN102449301A (en) * | 2009-12-16 | 2012-05-09 | 三菱重工业株式会社 | Wind powered generator |
| CN103004060A (en) * | 2010-04-19 | 2013-03-27 | 赛纳维斯有限公司 | Highly integrated energy conversion system for wind, tidal or hydro turbines |
| CN102297099B (en) * | 2011-08-01 | 2013-05-08 | 南京航空航天大学 | Wind power generator capable of automatically cooling by adopting air circulation system and cooling method for wind power generator |
| CN102297099A (en) * | 2011-08-01 | 2011-12-28 | 南京航空航天大学 | Wind power generator capable of automatically cooling by adopting air circulation system and cooling method for wind power generator |
| CN102563001A (en) * | 2011-12-20 | 2012-07-11 | 大连熵立得传热技术有限公司 | Hydrodynamic coupler with heat pipe type radiating assembly |
| CN102536686A (en) * | 2012-01-10 | 2012-07-04 | 三一电气有限责任公司 | Gear box and wind power generator comprising same |
| CN102536686B (en) * | 2012-01-10 | 2014-07-23 | 三一电气有限责任公司 | Gear box and wind power generator comprising same |
| CN102562484A (en) * | 2012-01-16 | 2012-07-11 | 国电联合动力技术有限公司 | Radiating device of wind power generation water cooling system and water cooling system |
| CN102635507A (en) * | 2012-04-24 | 2012-08-15 | 广东明阳风电产业集团有限公司 | Cold starting system of wind generating set |
| CN102777581A (en) * | 2012-07-31 | 2012-11-14 | 南京风电科技有限公司 | Heating and cooling device of wind turbine generator system |
| GB2534861A (en) * | 2015-01-30 | 2016-08-10 | Marine Current Turbines Ltd | Submersible turbine system |
| CN105484947A (en) * | 2015-12-21 | 2016-04-13 | 江苏金风科技有限公司 | Cooling device for wind turbine generator system, wind turbine generator system and operation control method |
| US10533538B2 (en) | 2015-12-23 | 2020-01-14 | Alaz-Arima, S.L. | Cooling device for components of wind turbines |
| WO2017109254A1 (en) * | 2015-12-23 | 2017-06-29 | Alaz-Arima, S.L. | Cooling device for components of wind turbines |
| CN109073068A (en) * | 2015-12-23 | 2018-12-21 | 阿拉泽-阿瑞玛公司 | Cooling device for wind turbine components |
| EP3396211A4 (en) * | 2015-12-23 | 2019-08-28 | Alaz-Arima, S.L. | Cooling device for components of wind turbines |
| CN109073068B (en) * | 2015-12-23 | 2022-04-15 | 阿拉泽-阿瑞玛公司 | Cooling arrangement for wind turbine components |
| CN105484949B (en) * | 2016-02-01 | 2018-07-27 | 北京金风科创风电设备有限公司 | Bearing protection method and device of wind driven generator |
| CN105484949A (en) * | 2016-02-01 | 2016-04-13 | 北京金风科创风电设备有限公司 | Bearing protection method and device of wind driven generator |
| CN112360706A (en) * | 2020-09-29 | 2021-02-12 | 浙江诺亚氟化工有限公司 | Immersed liquid phase-change cooling medium and application thereof in wind generating set |
| CN112412704A (en) * | 2020-11-20 | 2021-02-26 | 田剑辉 | Power generation windmill with energy-saving and electricity-capacitance functions for power equipment |
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Open date: 20090107 |