CN104747371A - Wind turbine generator hydraulic braking power device with electronic control wind wheel locking effect - Google Patents
Wind turbine generator hydraulic braking power device with electronic control wind wheel locking effect Download PDFInfo
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- CN104747371A CN104747371A CN201510138616.XA CN201510138616A CN104747371A CN 104747371 A CN104747371 A CN 104747371A CN 201510138616 A CN201510138616 A CN 201510138616A CN 104747371 A CN104747371 A CN 104747371A
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- driftage
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- 230000000694 effects Effects 0.000 title abstract description 4
- 239000002828 fuel tank Substances 0.000 claims description 46
- 239000000945 filler Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 10
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 8
- 230000009194 climbing Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0244—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a wind turbine generator hydraulic braking power device with the electronic control wind wheel locking effect and relates to the technical field of wind power in order to achieve the technical advantage that the safety coefficient of a wind turbine generator and maintenance personnel is increased. The device comprises an oil tank, a return oil filter, a main shaft braking loop, a yawing braking circuit, an oil supply loop, a wind wheel locking loop and two wind wheel locking cylinders, wherein the wind wheel locking loop achieve wind wheel locking through cooperation of a wind wheel locking energy accumulator, a wind wheel locking electromagnetic valve, a wind wheel locking reducing valve, a wind wheel locking check valve and two hydraulic lock control valves, the main shaft braking loop achieves braking of a main shaft through cooperation of a main shaft brake, a main shaft reducing valve, a main shaft energy accumulator and two main shaft electromagnetic valves, and the yawing braking loop achieves yawing braking through cooperation of a yawing brake, three yawing check valves, two yawing electromagnetic valves and two yawing one-way throttling valves. The wind turbine generator hydraulic braking power device is applicable to wind turbine generator systems.
Description
Technical field
The present invention relates to wind power technology, particularly relate to a kind of technology of the Wind turbines water brake power plant tight with automatically controlled wind wheel lock.
Background technique
Generally all be provided with hydraulic braking sytem in wind power generating set, water brake power plant are the critical pieces in hydraulic braking sytem, the effect in hydraulic braking sytem mainly contain following some: 1) for main shaft brake power source is provided; 2) for driftage provides power source to wind, brake; 3) drive the insertion of wind wheel locking cylinder and exit, making wind wheel safer, reliable.
It is large that traditional wind group also exists driftage noise, jiggly defect is rotated in cabin, and in order to avoid affecting driftage work, wind wheel locking cylinder all adopts manually-operable, attendant could be manually locked by wind wheel after must climbing cabin, the amplitude of rocking back and forth due to wind wheel is comparatively large, and attendant's risk factor in climbing process is higher, there is potential safety hazard.
Summary of the invention
For the defect existed in above-mentioned prior art, it is little that technical problem to be solved by this invention is to provide a kind of driftage noise, cabin stability of rotation, can promote the Wind turbines water brake power plant that the automatically controlled wind wheel lock of band of Wind turbines and attendant's safety coefficient is tight.
In order to solve the problems of the technologies described above, a kind of Wind turbines water brake power plant tight with automatically controlled wind wheel lock provided by the present invention, comprise fuel tank, return filter, and for wind generator set main shaft control main shaft brake circuits, for the driftage brake circuit that Wind turbines driftage controls, two wind wheel locking cylinders controlled for the locking of Wind turbines wind wheel, for providing the oil supply loop of pressure oil to each oil hydraulic circuit, one of them wind wheel locking cylinder is the first wind wheel locking cylinder, and another wind wheel locking cylinder is the second wind wheel locking cylinder; It is characterized in that: also comprise wind wheel locking loop;
Described wind wheel locking loop comprises wind wheel locking accumulator, wind wheel locking solenoid valve, wind wheel locking reduction valve, wind wheel locking one-way valve, and two hydraulic lock control valves;
Described wind wheel locking solenoid valve is 2/2-way normal-closed electromagnetic valve, and two hydraulic lock control valves are 3-position 4-way Y type meta solenoid valve;
The working hole of described wind wheel locking accumulator receives the filler opening of wind wheel locking solenoid valve, the filler opening of wind wheel locking solenoid valve receives the oil-feed port of oil supply loop through flow controller, the oil outlet of wind wheel locking solenoid valve receives the filler opening of wind wheel locking reduction valve, the unloading port of wind wheel locking reduction valve is connected to fuel tank, the oil outlet of wind wheel locking reduction valve receives the pressure oil port of two hydraulic lock control valves respectively through flow controller, the return opening of two hydraulic lock control valves receives the filler opening of wind wheel locking one-way valve respectively, the oil outlet of wind wheel locking one-way valve receives fuel tank through return filter,
One of them hydraulic lock control valve is the first hydraulic lock control valve, another hydraulic lock control valve is the second hydraulic lock control valve, two actuator ports of the first wind wheel locking cylinder received respectively by two actuator ports of the first hydraulic lock control valve by a hydraulic lock, two actuator ports of the second wind wheel locking cylinder received respectively by two actuator ports of the second hydraulic lock control valve by another hydraulic lock;
Described main shaft brake circuits comprises spindle brake, the first main shaft solenoid valve, the second main shaft solenoid valve, main shaft reduction valve, main shaft accumulator, the first main shaft solenoid valve is wherein normal close type 2/2-way solenoid valve, and the second main shaft solenoid valve is two-bit triplet solenoid valve;
The working hole of described main shaft accumulator receives the pressure oil port of spindle brake, the filler opening of the first main shaft solenoid valve receives the oil-feed port of oil supply loop through flow controller, the oil outlet of the first main shaft solenoid valve receives the filler opening of main shaft reduction valve, the oil outlet of main shaft reduction valve receives the pressure oil port of the second main shaft solenoid valve, the unloading port of main shaft reduction valve receives fuel tank, the pressure oil port of spindle brake received by the actuator port of the second main shaft solenoid valve, the return opening of the second main shaft solenoid valve receives fuel tank through return filter, and the drain tap of spindle brake receives fuel tank;
Described driftage brake circuit comprises off-course brake, the first driftage one-way valve, the second driftage one-way valve, the 3rd driftage one-way valve, the first driftage solenoid valve, the second driftage solenoid valve, and two driftage one-way throttle valves; The first driftage solenoid valve is wherein two-bit triplet solenoid valve, and the second driftage solenoid valve is 2/2-way normal-closed electromagnetic valve;
Described off-course brake has two actuator ports, the filler opening of the first driftage one-way valve receives the oil-feed port of oil supply loop through a driftage series flow control valve, the oil outlet of the first driftage one-way valve receives the filler opening of two driftage one-way throttle valves respectively, the oil outlet of one of them driftage one-way throttle valve receives the first job hydraulic fluid port of off-course brake, the oil outlet of another driftage one-way throttle valve receives the pressure oil port of the first driftage solenoid valve, the return opening of the first driftage solenoid valve takes back oil strainer to fuel tank through a driftage relief valve, the actuator port of the first driftage solenoid valve takes back oil strainer to fuel tank by the second driftage solenoid valve, and take back oil strainer to fuel tank by a driftage stop valve, the filler opening of the second driftage one-way valve and the oil outlet of the 3rd driftage one-way valve receive the actuator port of the first driftage solenoid valve respectively, the oil outlet of the second driftage one-way valve receives the filler opening of the 3rd driftage one-way valve through a driftage filter, the oil outlet of the second driftage one-way valve received by second actuator port of off-course brake.
Further, described oil supply loop comprises electric-motor pump, hand pump, for oil strainer, oil feed non-return valve, fuel feeding accumulator, the oil outlet of described oil feed non-return valve receives the working hole of fuel feeding accumulator through an accumulation of energy stop valve, the working hole of fuel feeding accumulator is let out can receive fuel tank by stop valve through one, and receive fuel tank through an accumulation of energy relief valve, the filler opening access fuel tank of described electric-motor pump and hand pump, the oil outlet of electric-motor pump and hand pump respectively receives the filler opening for oil strainer through a pumping hole one-way valve, filler opening for oil strainer receives fuel tank through one for oil-overflow valve, the filler opening of oil feed non-return valve receives the oil outlet for oil strainer, the oil-feed port of oil supply loop is the oil outlet of oil feed non-return valve.
Further, the oil outlet of described wind wheel locking reduction valve is connected to wind wheel lock compaction forces sensor.
Further, the pressure oil port of described spindle brake is connected to main shaft pressure transducer.
Further, the first job hydraulic fluid port of described off-course brake is connected to driftage pressure transducer.
The Wind turbines water brake power plant that the automatically controlled wind wheel lock of band provided by the invention is tight, the wind wheel in parallel with main shaft brake circuits is utilized to lock loop, for wind wheel locking cylinder insertion and exit and pressure oil be provided and do not affect normal driftage work, solenoid valve is locked by wind wheel, the cooperation of hydraulic lock control valve and hydraulic lock realizes wind wheel locking operation, attendant can be locked by wind wheel to cabin without the need to climbing, thus the amplitude making wind wheel rock back and forth can significantly reduce, improve the reliability of wind wheel, extend the working life of wind wheel, improve the safety coefficient of Wind turbines and attendant, driftage brake circuit is by regulating driftage relief valve, different back pressure values can be obtained thus realize different precompressions, when fan yaw is to wind, play the effect of yaw damping, make cabin stability of rotation, effectively can reduce the noise of driftage to wind.
Accompanying drawing explanation
Fig. 1 is the hydraulic diagram of the Wind turbines water brake power plant that the automatically controlled wind wheel lock of band of the embodiment of the present invention is tight.
Embodiment
Illustrate below in conjunction with accompanying drawing and embodiments of the invention are described in further detail; but the present embodiment is not limited to the present invention; every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in, the pause mark in the present invention all represent and relation.
As shown in Figure 1, a kind of tight with the automatically controlled wind wheel lock Wind turbines water brake power plant that the embodiment of the present invention provides, comprise fuel tank V1, return filter G1, and for wind generator set main shaft control main shaft brake circuits, for the driftage brake circuit that Wind turbines driftage controls, two wind wheel locking cylinders controlled for the locking of Wind turbines wind wheel, for providing the oil supply loop of pressure oil to each oil hydraulic circuit, one of them wind wheel locking cylinder is the first wind wheel locking cylinder, and another wind wheel locking cylinder is the second wind wheel locking cylinder; It is characterized in that: also comprise wind wheel locking loop;
Described wind wheel locking loop comprises wind wheel locking accumulator S1, wind wheel locking solenoid valve K2, wind wheel locking reduction valve R1, wind wheel locking one-way valve F6, and two hydraulic lock control valves P1, P2;
Described wind wheel locking solenoid valve K2 is 2/2-way normal-closed electromagnetic valve, and two hydraulic lock control valves P1, P2 are 3-position 4-way Y type meta solenoid valve;
The working hole of described wind wheel locking accumulator S1 receives the filler opening of wind wheel locking solenoid valve K2, the filler opening of wind wheel locking solenoid valve K2 receives the oil-feed port of oil supply loop through flow controller, the oil outlet of wind wheel locking solenoid valve K2 receives the filler opening of wind wheel locking reduction valve R1, the unloading port of wind wheel locking reduction valve R1 is connected to fuel tank V1, the oil outlet of wind wheel locking reduction valve R1 receives two hydraulic lock control valve P1 respectively through flow controller, the pressure oil port of P2, two hydraulic lock control valve P1, the return opening of P2 receives the filler opening of wind wheel locking one-way valve F6 respectively, the oil outlet of wind wheel locking one-way valve F6 receives fuel tank V1 through return filter G1,
One of them hydraulic lock control valve P1 is the first hydraulic lock control valve P1, another hydraulic lock control valve P2 is the second hydraulic lock control valve P2, two actuator port AA1 of the first wind wheel locking cylinder received respectively by two actuator ports of the first hydraulic lock control valve P1 by a hydraulic lock O1, BB1, two actuator port AA2 of the second wind wheel locking cylinder received respectively by two actuator ports of the second hydraulic lock control valve P2 by another hydraulic lock O2, BB2, one of them actuator port AA1 of the first wind wheel locking cylinder is rodless cavity actuator port, another actuator port BB1 is rod chamber actuator port, one of them actuator port AA2 of the second wind wheel locking cylinder is rodless cavity actuator port, another actuator port BB2 is rod chamber actuator port.
In the embodiment of the present invention, the oil outlet of described wind wheel locking reduction valve R1 is connected to wind wheel lock compaction forces sensor U3.
In the embodiment of the present invention, described oil supply loop comprises electric-motor pump X1, hand pump X2, for oil strainer G2, oil feed non-return valve F7, fuel feeding accumulator S3, the oil outlet of described oil feed non-return valve F7 receives the working hole of fuel feeding accumulator S3 through an accumulation of energy stop valve J3, the working hole of fuel feeding accumulator S3 is let out can receive fuel tank V1 by stop valve J2 through one, and receive fuel tank V1 through an accumulation of energy relief valve H3, the filler opening access fuel tank V1 of described electric-motor pump X1 and hand pump X2, the oil outlet of electric-motor pump X1 and hand pump X2 respectively receives the filler opening for oil strainer G2 through a pumping hole one-way valve, filler opening for oil strainer G2 receives fuel tank V1 through one for oil-overflow valve H1, the filler opening of oil feed non-return valve F7 receives the oil outlet for oil strainer G2, the oil-feed port of oil supply loop is the oil outlet of oil feed non-return valve F7.
In the embodiment of the present invention, described main shaft brake circuits comprises spindle brake, the first main shaft solenoid valve K3, the second main shaft solenoid valve L2, main shaft reduction valve R2, main shaft accumulator S2, the first main shaft solenoid valve K3 is wherein normal close type 2/2-way solenoid valve, and the second main shaft solenoid valve L2 is two-bit triplet solenoid valve;
The working hole of described main shaft accumulator S2 receives the pressure oil port S0 of spindle brake, the filler opening of the first main shaft solenoid valve K3 receives the oil-feed port of oil supply loop through flow controller, the oil outlet of the first main shaft solenoid valve K3 receives the filler opening of main shaft reduction valve R2, the oil outlet of main shaft reduction valve R2 receives the pressure oil port of the second main shaft solenoid valve L2, the unloading port of main shaft reduction valve R2 receives fuel tank V1, the pressure oil port S0 of spindle brake received by the actuator port of the second main shaft solenoid valve L2, the return opening of the second main shaft solenoid valve L2 receives fuel tank V1 through return filter G1, the drain tap of spindle brake receives fuel tank V1.
In the embodiment of the present invention, the pressure oil port S0 of described spindle brake is connected to main shaft pressure transducer U2.
In the embodiment of the present invention, described driftage brake circuit comprises off-course brake, the first driftage one-way valve F5, the second driftage one-way valve F4, the 3rd driftage one-way valve F3, the first driftage solenoid valve L1, the second driftage solenoid valve K1, and two driftage one-way throttle valves M1, M2; The first driftage solenoid valve L1 is wherein two-bit triplet solenoid valve, and the second driftage solenoid valve K1 is 2/2-way normal-closed electromagnetic valve;
Described off-course brake has two actuator port C1, D1, the filler opening of the first driftage one-way valve F5 receives the oil-feed port of oil supply loop through a driftage series flow control valve N, the oil outlet of the first driftage one-way valve F5 receives two driftage one-way throttle valve M1 respectively, the filler opening of M2, the oil outlet of one of them driftage one-way throttle valve M2 receives the first job hydraulic fluid port C1 of off-course brake, the oil outlet of another driftage one-way throttle valve M1 receives the pressure oil port of the first driftage solenoid valve L1, the return opening of the first driftage solenoid valve L1 takes back oil strainer G1 to fuel tank V1 through a driftage relief valve H2, the actuator port of the first driftage solenoid valve L1 takes back oil strainer G1 to fuel tank V1 by the second driftage solenoid valve K1, and take back oil strainer G1 to fuel tank V1 by a driftage stop valve J1, the filler opening of the second driftage one-way valve F4 and the oil outlet of the 3rd driftage one-way valve F3 receive the actuator port of the first driftage solenoid valve L1 respectively, the oil outlet of the second driftage one-way valve F4 receives the filler opening of the 3rd driftage one-way valve F3 through a driftage filter G3, second actuator port D1 of off-course brake receives the oil outlet of the second driftage one-way valve F4.
In the embodiment of the present invention, the first job hydraulic fluid port C1 of described off-course brake is connected to driftage pressure transducer U4.
In the embodiment of the present invention, described fuel tank V1 is provided with the liquid-level switch E3 for low liquid level warning, and for monitoring the level meter E3 of fuel tank inner fluid liquid level, for filtering the air-strainer E1 of cartonning air, for the oiling filter E4 that oiling is filtered.
In the embodiment of the present invention, the working hole of described fuel feeding accumulator S3 is connected to charge oil pressure table T1, charge oil pressure sensor U1.
The working principle of the embodiment of the present invention is as follows:
When controlling the main shaft brake of Wind turbines, first main shaft solenoid valve K3 and the second main shaft solenoid valve L2 all must be conducted, the pressure oil that now oil supply loop exports enters main shaft reduction valve R2 through flow controller, the first main shaft solenoid valve K3 successively, enter the pressure oil cavity of spindle brake again through the second main shaft solenoid valve L2 after being reduced pressure by main shaft reduction valve R2, the main shaft of spindle brake to Wind turbines is braked, main shaft accumulator S2 can absorb shock and vibration, make principal shaft braking steady, main shaft pressure transducer U2 can detect the pressure of main shaft brake circuits in real time;
When controlling the main shaft brake off of Wind turbines, make the first main shaft solenoid valve K3 dead electricity cut-off, and make the second main shaft solenoid valve L2 dead electricity off-load, pressure oil now in spindle brake pressure oil cavity from its pressure oil port S0 successively through the second main shaft solenoid valve L2, return filter G1 drain charge to fuel tank V1, make the braking of spindle brake releasing to wind generator set main shaft, main shaft pressure transducer U2 sends for showing the index signal that main shaft can work simultaneously;
The mode of braking of Wind turbines driftage braking has three kinds, is respectively that break is stopped entirely, break half release, break discharge entirely;
Off-course brake is in state of entirely stopping when Wind turbines generates electricity by way of merging two or more grid systems, the now equal dead electricity cut-off of the first driftage solenoid valve L1 and second driftage solenoid valve K1, driftage stop valve J1 closes, now the oil return fluid path of second actuator port D1 of off-course brake is blocked, the pressure oil that oil supply loop exports is through driftage series flow control valve N, two-way is divided into after first driftage one-way valve F5, the first via is after driftage one-way throttle valve M2, its pressure oil cavity is entered from the first job hydraulic fluid port C1 of off-course brake, second tunnel is through driftage one-way throttle valve M1, first driftage solenoid valve L1, after second driftage one-way valve F4, from off-course brake second actuator port D1 enter its pressure oil cavity, make off-course brake carry out driftage braking to Wind turbines entirely to stop,
Off-course brake is gone off course to being in half releasing state during wind at Wind turbines, now the first driftage solenoid valve L1 must conduct, second driftage solenoid valve K1 dead electricity cut-off, the pressure oil of now oil supply loop output is through driftage series flow control valve N, first driftage one-way valve F5, after driftage one-way throttle valve M2, its pressure oil cavity is entered from the first job hydraulic fluid port C1 of off-course brake, when the overflow setting value of the pressure oil oil pressure in off-course brake pressure oil cavity higher than driftage relief valve H2, off-course brake is namely by its second actuator port D1 pressure release, the oil of pressure release is successively by driftage filter G3, 3rd driftage one-way valve F3, first driftage solenoid valve L1, driftage relief valve H2, return fuel tank V1 after return filter G1, off-course brake is made to maintain half releasing state, by regulating the back pressure value of driftage relief valve, the damping torque of different yawing rotation can be realized to make cabin stability of rotation, effectively can reduce the noise of fan yaw,
Off-course brake is in full releasing state when Wind turbines unties the mooring rope, now the first driftage solenoid valve L1 and second driftage solenoid valve K1 all must conduct, the pressure oil of now oil supply loop output is through driftage series flow control valve N, first driftage one-way valve F5, after driftage one-way throttle valve M2, its pressure oil cavity is entered from the first job hydraulic fluid port C1 of off-course brake, pressure oil in off-course brake pressure oil cavity is more successively by second actuator port D1, driftage filter G3, 3rd driftage one-way valve F3, second driftage solenoid valve K1, return fuel tank V1 after return filter G1, off-course brake is made to be in full releasing state,
The wind wheel locking of Wind turbines has two states, is respectively locking insertion and locks to exit;
Wind turbines is when shutting down, wind wheel locking solenoid valve K2 must conduct, two hydraulic lock control valve P1, the equal right-hand member of P2 obtains electric, the pressure oil that oil supply loop exports passes through flow controller successively, wind wheel locking solenoid valve K2, two-way is divided into after wind wheel locking reduction valve R1, the first via passes through flow controller, first hydraulic lock control valve P1, hydraulic lock O1 enters the rodless cavity actuator port AA1 of the first wind wheel locking cylinder, flow controller is passed through on second tunnel, second hydraulic lock control valve P2, hydraulic lock O2 enters the rodless cavity actuator port AA2 of the second wind wheel locking cylinder, oil in the rod chamber of two wind wheel locking cylinders is then respectively by two hydraulic lock O1, O2 and two hydraulic lock control valve P1, after P2, again through wind wheel locking one-way valve F6, return filter G1 returns into fuel tank V1, thus the power pin of ordering about two wind wheel locking cylinders is stretched out, the power pin of two wind wheel locking cylinders is made to insert the locking plate of wind wheel respectively, after the power pin of two wind wheel locking cylinders is stretched out completely, wind wheel locking solenoid valve K2 dead electricity, the wind wheel of Wind turbines is made to remain on locking insert state, now the wind wheel of Wind turbines is locked,
Wind turbines is when the machine of opening generates electricity by way of merging two or more grid systems, wind wheel locking solenoid valve K2 must conduct, two hydraulic lock control valve P1, the equal left end of P2 obtains electric, the pressure oil that oil supply loop exports passes through flow controller successively, wind wheel locking solenoid valve K2, two-way is divided into after wind wheel locking reduction valve R1, the first via passes through flow controller, first hydraulic lock control valve P1, hydraulic lock O1 enters the rod chamber actuator port BB1 of the first wind wheel locking cylinder, flow controller is passed through on second tunnel, second hydraulic lock control valve P2, hydraulic lock O2 enters the rodless cavity actuator port BB2 of the second wind wheel locking cylinder, oil in the rodless cavity of two wind wheel locking cylinders is then respectively by two hydraulic lock O1, O2 and two hydraulic lock control valve P1, after P2, again through wind wheel locking one-way valve F6, return filter G1 returns into fuel tank V1, thus the power pin of ordering about two wind wheel locking cylinders is retracted, the power pin of two wind wheel locking cylinders is made to exit the locking plate of wind wheel respectively, after the power pin of two wind wheel locking cylinders is retracted completely, wind wheel locking solenoid valve K2 dead electricity, the wind wheel of Wind turbines is made to remain on locking exit status, the now wind wheel lock release of Wind turbines.
Claims (5)
1. the Wind turbines water brake power plant that the automatically controlled wind wheel lock of band is tight, comprise fuel tank, return filter, and for wind generator set main shaft control main shaft brake circuits, for the driftage brake circuit that Wind turbines driftage controls, two wind wheel locking cylinders controlled for the locking of Wind turbines wind wheel, for providing the oil supply loop of pressure oil to each oil hydraulic circuit, one of them wind wheel locking cylinder is the first wind wheel locking cylinder, and another wind wheel locking cylinder is the second wind wheel locking cylinder; It is characterized in that: also comprise wind wheel locking loop;
Described wind wheel locking loop comprises wind wheel locking accumulator, wind wheel locking solenoid valve, wind wheel locking reduction valve, wind wheel locking one-way valve, and two hydraulic lock control valves;
Described wind wheel locking solenoid valve is 2/2-way normal-closed electromagnetic valve, and two hydraulic lock control valves are 3-position 4-way Y type meta solenoid valve;
The working hole of described wind wheel locking accumulator receives the filler opening of wind wheel locking solenoid valve, the filler opening of wind wheel locking solenoid valve receives the oil-feed port of oil supply loop through flow controller, the oil outlet of wind wheel locking solenoid valve receives the filler opening of wind wheel locking reduction valve, the unloading port of wind wheel locking reduction valve is connected to fuel tank, the oil outlet of wind wheel locking reduction valve receives the pressure oil port of two hydraulic lock control valves respectively through flow controller, the return opening of two hydraulic lock control valves receives the filler opening of wind wheel locking one-way valve respectively, the oil outlet of wind wheel locking one-way valve receives fuel tank through return filter,
One of them hydraulic lock control valve is the first hydraulic lock control valve, another hydraulic lock control valve is the second hydraulic lock control valve, two actuator ports of the first wind wheel locking cylinder received respectively by two actuator ports of the first hydraulic lock control valve by a hydraulic lock, two actuator ports of the second wind wheel locking cylinder received respectively by two actuator ports of the second hydraulic lock control valve by another hydraulic lock;
Described main shaft brake circuits comprises spindle brake, the first main shaft solenoid valve, the second main shaft solenoid valve, main shaft reduction valve, main shaft accumulator, the first main shaft solenoid valve is wherein normal close type 2/2-way solenoid valve, and the second main shaft solenoid valve is two-bit triplet solenoid valve;
The working hole of described main shaft accumulator receives the pressure oil port of spindle brake, the filler opening of the first main shaft solenoid valve receives the oil-feed port of oil supply loop through flow controller, the oil outlet of the first main shaft solenoid valve receives the filler opening of main shaft reduction valve, the oil outlet of main shaft reduction valve receives the pressure oil port of the second main shaft solenoid valve, the unloading port of main shaft reduction valve receives fuel tank, the pressure oil port of spindle brake received by the actuator port of the second main shaft solenoid valve, the return opening of the second main shaft solenoid valve receives fuel tank through return filter, and the drain tap of spindle brake receives fuel tank;
Described driftage brake circuit comprises off-course brake, the first driftage one-way valve, the second driftage one-way valve, the 3rd driftage one-way valve, the first driftage solenoid valve, the second driftage solenoid valve, and two driftage one-way throttle valves; The first driftage solenoid valve is wherein two-bit triplet solenoid valve, and the second driftage solenoid valve is 2/2-way normal-closed electromagnetic valve;
Described off-course brake has two actuator ports, the filler opening of the first driftage one-way valve receives the oil-feed port of oil supply loop through a driftage series flow control valve, the oil outlet of the first driftage one-way valve receives the filler opening of two driftage one-way throttle valves respectively, the oil outlet of one of them driftage one-way throttle valve receives the first job hydraulic fluid port of off-course brake, the oil outlet of another driftage one-way throttle valve receives the pressure oil port of the first driftage solenoid valve, the return opening of the first driftage solenoid valve takes back oil strainer to fuel tank through a driftage relief valve, the actuator port of the first driftage solenoid valve takes back oil strainer to fuel tank by the second driftage solenoid valve, and take back oil strainer to fuel tank by a driftage stop valve, the filler opening of the second driftage one-way valve and the oil outlet of the 3rd driftage one-way valve receive the actuator port of the first driftage solenoid valve respectively, the oil outlet of the second driftage one-way valve receives the filler opening of the 3rd driftage one-way valve through a driftage filter, the oil outlet of the second driftage one-way valve received by second actuator port of off-course brake.
2. the Wind turbines water brake power plant that the automatically controlled wind wheel lock of band according to claim 1 is tight, it is characterized in that: described oil supply loop comprises electric-motor pump, hand pump, for oil strainer, oil feed non-return valve, fuel feeding accumulator, the oil outlet of described oil feed non-return valve receives the working hole of fuel feeding accumulator through an accumulation of energy stop valve, the working hole of fuel feeding accumulator is let out can receive fuel tank by stop valve through one, and receive fuel tank through an accumulation of energy relief valve, the filler opening access fuel tank of described electric-motor pump and hand pump, the oil outlet of electric-motor pump and hand pump respectively receives the filler opening for oil strainer through a pumping hole one-way valve, filler opening for oil strainer receives fuel tank through one for oil-overflow valve, the filler opening of oil feed non-return valve receives the oil outlet for oil strainer, the oil-feed port of oil supply loop is the oil outlet of oil feed non-return valve.
3. the Wind turbines water brake power plant that the automatically controlled wind wheel lock of band according to claim 1 is tight, is characterized in that: the oil outlet of described wind wheel locking reduction valve is connected to wind wheel lock compaction forces sensor.
4. the Wind turbines water brake power plant that the automatically controlled wind wheel lock of band according to claim 1 is tight, is characterized in that: the pressure oil port of described spindle brake is connected to main shaft pressure transducer.
5. the Wind turbines water brake power plant that the automatically controlled wind wheel lock of band according to claim 1 is tight, is characterized in that: the first job hydraulic fluid port of described off-course brake is connected to driftage pressure transducer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510138616.XA CN104747371A (en) | 2015-03-27 | 2015-03-27 | Wind turbine generator hydraulic braking power device with electronic control wind wheel locking effect |
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| CN201510138616.XA CN104747371A (en) | 2015-03-27 | 2015-03-27 | Wind turbine generator hydraulic braking power device with electronic control wind wheel locking effect |
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| CN104747371A true CN104747371A (en) | 2015-07-01 |
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| CN201510138616.XA Pending CN104747371A (en) | 2015-03-27 | 2015-03-27 | Wind turbine generator hydraulic braking power device with electronic control wind wheel locking effect |
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