CN105781883A - Hydraulic system for wind turbine generator set and wind turbine generator - Google Patents
Hydraulic system for wind turbine generator set and wind turbine generator Download PDFInfo
- Publication number
- CN105781883A CN105781883A CN201610358874.3A CN201610358874A CN105781883A CN 105781883 A CN105781883 A CN 105781883A CN 201610358874 A CN201610358874 A CN 201610358874A CN 105781883 A CN105781883 A CN 105781883A
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- CN
- China
- Prior art keywords
- oil
- hydraulic system
- wind turbine
- turbine generator
- pressure cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a hydraulic system for a wind turbine generator set. The hydraulic system comprises a directional control valve and a yaw hydraulic brake and further comprises a pressure cylinder. An oil outlet of the directional control valve is connected with an oil inlet of the pressure cylinder. An oil outlet of the pressure cylinder is connected with an oil inlet of the yaw hydraulic brake. According to the hydraulic system for the wind turbine generator set, due to the fact that the pressure cylinder is additionally arranged between the directional control valve and the yaw hydraulic brake, the pressure cylinder plays a role in reducing outlet pressure of a pump, when yaw brake leakage happens, the situation that leakage of a great amount of oil fluid happens to an oil way connected with the pressure cylinder is avoided, the good control function on oil fluid leakage is played, the amount of sprayed-out hydraulic oil is reduced, and pollution is reduced. Meanwhile, the hydraulic system is simple in structure, compact in size and reliable in work and has complete functions, and the number of elements is small. The invention further relates to a wind turbine generator comprising the hydraulic system for the wind turbine generator set.
Description
Technical field
The present invention relates to wind-powered electricity generation power field, particularly relate to a kind of hydraulic system of wind power generating set and wind-driven generator.
Background technology
When hydraulic system of wind power generating set acts on general in fan operation, main shaft being safeguarded, the liquid braking devices such as braking, yaw brake are braked.At present, hydraulic system of wind power generating set generally comprises spindle brake, off-course brake, Hydraulic Station, pipeline etc..Directly it is driven into after reversal valve in the oil cylinder of corresponding liquid braking device from hydraulic pump hydraulic oil out, due to yaw brake operating pressure oil higher with pressure requirements, cause the pressure state all in a high pressure of hydraulic pump and whole system, particularly work after a period of time, due to yaw brake work frequently, its checking cylinder due to ring wear, port connections break etc. there is leakage time, moment intrasystem hydraulic oil can all spray, and causes a large amount of pollution.
Summary of the invention
It is an object of the invention to provide a kind of reliable operation, the hydraulic system of wind power generating set reducing leakage and wind-driven generator.
The present invention is achieved by the following technical solutions: a kind of hydraulic system of wind power generating set, it includes directional control valve, driftage liquid braking device, also include pressurized cylinder, the oil-out of described directional control valve is connected with the oil-in of pressurized cylinder, and the oil-out of described pressurized cylinder is connected with the oil-in of driftage liquid braking device.
Preferably, it is provided with Pressure gauge and pressure switch between oil-out and the oil-in of pressurized cylinder of described directional control valve.
Preferably, the oil-out of described pressurized cylinder and the driftage inlet pressure table of liquid braking device and pressure switch.
A kind of wind-driven generator, it includes hydraulic system of wind power generating set, and described hydraulic system of wind power generating set is hydraulic system of wind power generating set described above.
The method have the benefit that: owing to adding pressurized cylinder between directional control valve and driftage liquid braking device, pressurized cylinder has reduction delivery side of pump pressure effect, thus when off-course brake leaks, the oil circuit that pressurized cylinder connects does not result in the leakage of a large amount of fluid, fluid is revealed and plays good control action, decreasing the ejection of hydraulic oil, reduce and pollute, present system simple in construction, number of elements be few simultaneously, compact, multiple functional, reliable operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
nullWith reference to accompanying drawing，A kind of hydraulic system of wind power generating set，It includes fuel tank 1、Liquidometer 2、Air filter 3、Temperature sensor 4、Liquidometer 5、Motor 6、Shaft coupling 7、Hydraulic pump 8、Oil absorption filter 9、High pressure filter 10、Check valve 11、Differential pressure transmitter device 12、Check valve 13、Overflow valve 14、Stop valve 15、Pressure transducer 16、Check valve 17、Flow control valve 18、Accumulator 19、Check valve 20、Stop valve for pressure gauge 21、Pressure gauge 22、Two position, three-way electromagnetic change valve 23、Pressure switch 24、Spindle brake 25、Stop valve 26、Check valve 27、Two position, three-way electromagnetic change valve 28、Stop valve for pressure gauge 29、Pressure gauge 30、Pressure transducer 31、Accumulator 33、Overflow valve 34、Stop valve 35、Pressure transducer 36、Stop valve for pressure gauge 37、Pressure gauge 38、Driftage liquid braking device 39、Check valve 40、Check valve 41、Pressure switch 42，Described overflow valve 14、34 is pressure-control valve，Described two position, three-way electromagnetic change valve 23、28 is directional control valve，Also include pressurized cylinder 32，The oil-out of described two position, three-way electromagnetic change valve 28 is connected with the oil-in of pressurized cylinder 32，The oil-out of described pressurized cylinder 32 is connected with the oil-in of driftage liquid braking device 39，It is provided with Pressure gauge 30 and pressure switch 31 between the oil-out and the oil-in of pressurized cylinder 32 of described two position, three-way electromagnetic change valve 28，It is provided with Pressure gauge 38 and pressure switch 36 between the oil-out and the oil-in of driftage liquid braking device 39 of described pressurized cylinder 32.
When wind turbine power generation, the hydraulic oil of hydraulic pump 8 enters pressurized cylinder 32 through two position, three-way electromagnetic change valve 28 when the system is operated, pressurized cylinder 32 oil-out enters off-course brake 39, equipped with Pressure gauge 30,38 and pressure transducer 31,36 between the oil-out and the oil-in of pressurized cylinder 32 of two position, three-way electromagnetic change valve 28 and between the oil-in of the oil-out of pressurized cylinder 32 and driftage liquid braking device 39, pressure transducer real-time monitoring system force value must be in normal operation range, if exceeding range of operation to send alarm signal to master control.
The inlet pressure of driftage liquid braking device 39 is entered by the oil-out of pressurized cylinder 32, namely by area ratio is different, pressure is amplified, reduce main system pressure, and hydraulic power source obstruct is opened with rodless cavity by pressurized cylinder 32 rod chamber, by pressurized cylinder 32 supercharging, rod chamber pressure enters off-course brake 39 higher than rodless cavity, and when leakage occurs off-course brake 39, if and only if only has the hydraulic oil of rod chamber all to have leaked, and the hydraulic oil of rodless cavity will not be impacted.
It is more than one embodiment of the present invention, a preferred demonstration example.The scope that the present patent application is claimed is not only limited in described embodiment.All and the present embodiment equivalence technical scheme belongs to protection scope of the present invention.
The invention still further relates to a kind of wind-driven generator, it includes hydraulic system of wind power generating set, and described hydraulic system of wind power generating set is hydraulic system of wind power generating set described above.
Claims (4)
1. a hydraulic system of wind power generating set, it includes directional control valve, driftage liquid braking device, it is characterised in that also include pressurized cylinder, the oil-out of described directional control valve is connected with the oil-in of pressurized cylinder, and the oil-out of described pressurized cylinder is connected with the oil-in of driftage liquid braking device.
2. a kind of hydraulic system of wind power generating set according to claim 1, it is characterised in that be provided with Pressure gauge and pressure switch between oil-out and the oil-in of pressurized cylinder of described directional control valve.
3. a kind of hydraulic system of wind power generating set according to claim 1 or claim 2, it is characterised in that the inlet pressure table of the oil-out of described pressurized cylinder and driftage liquid braking device and pressure switch.
4. a wind-driven generator, it includes hydraulic system of wind power generating set, it is characterised in that described hydraulic system of wind power generating set is claim 1 to the hydraulic system of wind power generating set described in claim 3 any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358874.3A CN105781883A (en) | 2016-05-27 | 2016-05-27 | Hydraulic system for wind turbine generator set and wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358874.3A CN105781883A (en) | 2016-05-27 | 2016-05-27 | Hydraulic system for wind turbine generator set and wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105781883A true CN105781883A (en) | 2016-07-20 |
Family
ID=56380489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610358874.3A Pending CN105781883A (en) | 2016-05-27 | 2016-05-27 | Hydraulic system for wind turbine generator set and wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781883A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110506160A (en) * | 2017-02-07 | 2019-11-26 | 哈威阿尔滕斯塔特控股有限公司 | Wind power plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110030361A1 (en) * | 2009-08-06 | 2011-02-10 | Newwindtech Llc | Hydrostatic linear wind mill for wind energy harnessing applications |
| CN201810477U (en) * | 2010-07-08 | 2011-04-27 | 上海敏泰液压件有限公司 | Spindle brake and yawing brake system of wind turbine generator |
| CN202768246U (en) * | 2012-05-30 | 2013-03-06 | 南京风电科技有限公司 | Wind power hydraulic station using supercharger |
| CN105298744A (en) * | 2015-09-25 | 2016-02-03 | 三一重型能源装备有限公司 | Braking hydraulic system of wind driven generator and wind driven generator |
-
2016
- 2016-05-27 CN CN201610358874.3A patent/CN105781883A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110030361A1 (en) * | 2009-08-06 | 2011-02-10 | Newwindtech Llc | Hydrostatic linear wind mill for wind energy harnessing applications |
| CN201810477U (en) * | 2010-07-08 | 2011-04-27 | 上海敏泰液压件有限公司 | Spindle brake and yawing brake system of wind turbine generator |
| CN202768246U (en) * | 2012-05-30 | 2013-03-06 | 南京风电科技有限公司 | Wind power hydraulic station using supercharger |
| CN105298744A (en) * | 2015-09-25 | 2016-02-03 | 三一重型能源装备有限公司 | Braking hydraulic system of wind driven generator and wind driven generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110506160A (en) * | 2017-02-07 | 2019-11-26 | 哈威阿尔滕斯塔特控股有限公司 | Wind power plant |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |
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| WD01 | Invention patent application deemed withdrawn after publication |