CN109139350A - A kind of overspeed protection and volume control device for hydroenergy storage station - Google Patents
A kind of overspeed protection and volume control device for hydroenergy storage station Download PDFInfo
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- CN109139350A CN109139350A CN201811151810.1A CN201811151810A CN109139350A CN 109139350 A CN109139350 A CN 109139350A CN 201811151810 A CN201811151810 A CN 201811151810A CN 109139350 A CN109139350 A CN 109139350A
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- inserted valve
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- sequence closing
- pressure
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- 230000004224 protection Effects 0.000 title claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000012360 testing method Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000010977 unit operation Methods 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
-
- 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
-
- 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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
- F03B15/18—Regulating, i.e. acting automatically for safety purposes, e.g. preventing overspeed
-
- 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
- Y02E10/20—Hydro energy
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Water Turbines (AREA)
Abstract
The invention discloses a kind of overspeed protections and volume control device for hydroenergy storage station, belong to water-storage technical field, including the first inserted valve, second inserted valve, first sequence closing inserted valve and the second sequence closing inserted valve, it is characterized by also including oil return boxes, pilot-operated type electro-hydraulic reversing valve, first sequence closing pilot solenoid valve, second sequence closing pilot solenoid valve, first accident inserted valve and the second accident inserted valve, first inserted valve and the first accident inserted valve are connected to servomotor and close on chamber, second accident inserted valve is connect with oil return box, pilot-operated type electro-hydraulic reversing valve respectively with the first accident inserted valve, second accident inserted valve, the connection of the control chamber of first inserted valve and the second inserted valve.The present invention is by reducing the connection of oil pipe line, avoiding the drawback more than leak source, improve unit operational reliability and safety by accident inserted valve and sequence closing inserted valve and sequence closing pilot solenoid valve is highly integrated is integrated.
Description
Technical field
The present invention relates to water-storage technical field more particularly to a kind of overspeed protection for hydroenergy storage station with
Volume control device.
Background technique
Overspeed protection and volume control device are the key that hydropower scheduling protection equipment, and main function is:
Unit failure closing, overrun closing and the closing of servomotor multistage rate.Emergency episode occurs in unit, governor cannot be closed normally
Machine, in the case that guide vane servomotor can not close in time, the revolving speed of unit can quickly rise to runaway speed, in order to limit unit
It overruns, avoid winged anecdote therefore occurs, accident protection or mechanic over speed protection device protect calculating according to unit tune in the case
Shutdown rate requires timely guide vane closing servomotor, protects the safety of unit.
Sequence closing is also the important device that power station requires.The requirement calculated is protected according to unit tune, the hydraulic turbine is urgent
During shutdown, rate cannot be too fast, to prevent the destruction because of water hammer effect to runner.Pump-storage generator is due to water
Turbine and two kinds of water pump different operating conditions, the requirement for opening and closing rule to unit are different from general Hydropower Plant；Not
It is not quite similar with the shutdown rate and mode that under operating condition, unit is required；In addition, machine under unlatching rate and each operating condition that unit requires
The most fast shutdown rate of group is not also identical.
Existing emergency closure and two sections of closing devices are not able to satisfy pump-storage generator multi-speed on domestic and international market at present
The requirement of rate startup-shutdown, emergency shutdown and overspeed protection comprehensively control, it is different degrees of there is each function valve group arrangements excessively
Not the phenomenon that dispersion, machinery adjustment precision is not high and adjusting is very inconvenient, will cause setting point drift after long-play.Some
The logic control mode that valve group electrically and mechanically combines is excessively complicated, function define it is unintelligible, to monitoring system long-term safety transport
Row causes risk.Each function valve group installation site dispersion will also result in complicated, the too long connecting tube of system pipeline arrangement simultaneously
The problems such as road is also easy to cause leakage point mostly too long with the valve group response time, and system mode switches not in time；Excessive connecting tube
Mouth, control oil pipe connector easily cause the pressure oscillation between each nozzle if its installation site is unreasonable, cause certain liquid
The malfunction for pressing control function has seriously affected the safety of power station operation.
Publication No. CN 102042159A, publication date are that on May 04th, 2011 Chinese patent literature discloses one kind
The subsection and closed device that pump-storage generator shutdown rate is adjusted is realized, it is characterized in that by step closure device FD I, step closure device
FD II and sequence closing hydraulic valve integrated package JCK composition；Step closure device FD I includes pilot operated directional control valve V1, solenoid directional control valve V2,
Wherein V1 is 2/2-way pilot operated directional control valve, and V2 is two four-way electromagnetic reversing valves, and V2 is installed on the valve body of pilot operated directional control valve V1
On, for controlling the commutation of pilot operated directional control valve V1；Step closure device FD II include 3-position 4-way pilot operated directional control valve V3, shuttle valve S1 and
Inserted valve C1, C2, C3, wherein inserted valve C1, C2, C3 is integrated in same valve body, and pilot operated directional control valve V3 and shuttle valve S1 are installed on valve
On body, for controlling the switch of inserted valve；Sequence closing hydraulic valve integrated package JCK includes two four-way return of stroke valves V4, V6
With two four-way electromagnetic reversing valves V5, V7, wherein return of stroke valve V4 and solenoid directional control valve V5 be one group, return of stroke valve V6 and
Solenoid directional control valve V7 is another group, for judging the hydraulic turbine/water pump direction inflection point signal；Step closure device FD I and sequence closing
Valve FD II is series at speed-regulating system and begins to speak in pipeline, and sequence closing hydraulic valve integrated package JCK is arranged in guide vane servomotor in foundation pit
Side；Operating oil line road JG and the P of guide vane servomotor close cavity and pilot operated directional control valve the V3 mouth of guide vane servomotor close cavity are connected, guide vane
The operating oil line road JK that servomotor is begun to speak is connected with the A of pilot operated directional control valve V1 mouth, controls pressure oil pipeline P1 and solenoid directional control valve
The P mouth of V2 is connected, and the B mouth of pilot operated directional control valve V1 is connected with A1, A2, A3 of inserted valve C1, C2, C3 mouth, inserted valve C1, C2, C3
B1, B2, B3 mouth and guide vane servomotor pipeline of beginning to speak be connected, control the P mouth phase of pressure oil pipeline P2 and return of stroke valve V4, V6
Even, the A mouth of return of stroke valve V4 is connected with the P of solenoid directional control valve V5 mouth, and the A mouth of return of stroke valve V6 is with solenoid directional control valve V7's
P mouthfuls are connected, and the B mouth of solenoid directional control valve V5 is connected with the end a liquid controling cavity of pilot operated directional control valve V3, the A mouth and liquid of solenoid directional control valve V7
The end the b liquid controling cavity for controlling reversal valve V3 is connected.
Subsection and closed device disclosed in the patent document realizes pump-storage generator hydraulic turbine direction and water pump direction not
With the adjusting of shutdown rate, the safe and reliable operation of pump-storage generator ensure that.
Publication No. CN 101430358, publication date are that on May 13rd, 2009 Chinese patent literatures disclose a kind of pumping
Water storage station head prow time pump operating condition complete set start-up test method successively includes the test of unit pump operating condition, unit generation
Working condition tests, change working test and accidental shutdown test, it is characterized in that: carrying out the unit pump operating condition test, institute first
State unit pump operating condition test the following steps are included:
A, pump operating condition no-load test: start unit with static frequency changer, unit is closed and the aerial shape of runner in guide vane
Be connected to the grid operation under state；Measure unit input power, stator and each spot temperature of rotor current, unit and unit vibration and
Throw value, the dynamic balancing after the verification electronic operating condition of unit is grid-connected；Idle running to temperature stablize until, measure each spot temperature and
Thrust and guide bearing temperature are answered hard stop, after stable, are carried out automatic as a discovery watt temperature steeply rises phenomenon in operation
Engine cut off test checks the correctness of shutdown procedure；
B, pump operating condition bailing test: operation unit inflation water pressuring system be exhausted, monitoring draft tube water level rise situation and
Pressure between guide vane and runner enrolls pressure change oscillogram, determines best opportunity and opening speed that guide vane is opened；It presses in
Water polo valve and guide vane open relation curve, open water intake ball valve and guide vane；When admission is transitioned into pumping operation mode from zero delivery operating condition
The parameters such as pressure, volute pressure, pressure in draft tube, servomotor stroke between power input to machine, guide vane and runner；Enroll machine up and down
Frame, top cover, support of bearing vibration and main shaft throw；According to above-mentioned admission data and practical lift, to guide vane open rule it is equal into
Row amendment and parameter optimization；After pumping operation mode stable operation, measurement power input to machine, guide vane opening, the flow that draws water, lift,
Unit vibration and throw, noise, spiral case, pressure in draft tube and pressure fluctuation, each portion's temperature of unit, cooling system flow and pressure
Power, shaft voltage etc.；The hydraulic turbine/water pump synthesis is drawn according to parameters such as the input power of actual measurement, lift, flow and guide vane openings
Curve, and the curve provided with manufactory compares；
C, pump operating condition engine cut off test: unit is run under rated load, is provided halt instruction in local control unit, is checked certainly
Dynamic load shedding and unit autostop program correctness；The timing diagram and revolving speed that main program acts during record orderly closedown
Characteristic and overall time determine the tripping opportunity of breaker during load shedding；Under rated load, analog mechanical accident and electrical
The accidental shutdown of protection act tripping circuit breaker checks the correctness of pump operating condition load dump test shutdown procedure, checks normal
And mechanical accident break point brake apparatus investment, the investment and latch status of protective device；Enroll stopping process in stator and
It is pressure between electric current, voltage, guide vane opening, spiral case and the pressure in draft tube of rotor, guide vane and runner, servomotor stroke, revolving speed, total
Downtime and the parameters such as each position vibration of unit and main shaft throw, and according to the oscillogram of above-mentioned parameter, it corrects guide vane and closes
Close rule, optimization process parameter.
Hydroenergy storage station head prow disclosed in the patent document time pump operating condition complete set start-up test method, using first machine
Pump operating condition starts scheme for the first time, not only contributes to save engineering cost, moreover it is possible to first operating unit power generation in advance, society and warp
Benefit of helping is good.
But it using above patent document as the prior art of representative, has following defects that
1, it is not able to satisfy the requirement of pump-storage generator multi tate startup-shutdown, emergency shutdown and overspeed protection comprehensively control, it is different
Arranging there is each function valve group for degree excessively disperses, and machinery adjustment precision is not high and adjusts very inconvenient, long-time fortune
The phenomenon that will cause setting point drift after row, influences power station operational reliability.
2, system pipeline arrangement is complicated, and too long connecting line be easy to cause leakage point mostly too long with the valve group response time,
The problem of system mode switches not in time；Excessive connection nozzle, control oil pipe connector, installation site is required it is high, if installation
Position is unreasonable, easily causes the pressure oscillation between each nozzle, causes the malfunction of hydraulic control function, seriously affects power station
Safety in operation.
Summary of the invention
The present invention in order to overcome the defects of the prior art described above, provide a kind of overspeed protection for hydroenergy storage station with
Volume control device, the present invention can satisfy the comprehensive control of pump-storage generator multi tate startup-shutdown, emergency shutdown and overspeed protection
The requirement of system, by by accident inserted valve and sequence closing inserted valve and sequence closing pilot solenoid valve is highly integrated is integrated,
The connection for reducing oil pipe line avoids the drawback more than leak source, improves unit operational reliability and safety.
The present invention is achieved through the following technical solutions:
A kind of overspeed protection and volume control device for hydroenergy storage station, including control pressure oil circuit, pass through working connection
Be connected to main control valve close chamber on the first inserted valve, be connected to main control valve open chamber on the second inserted valve, be connected to
Servomotor opens the first sequence closing inserted valve and the second sequence closing inserted valve on chamber, it is characterised in that: further includes oil return
Case, pilot-operated type electro-hydraulic reversing valve, for the first sequence closing pilot solenoid valve of switch the first sequence closing inserted valve, for opening
The the second sequence closing pilot solenoid valve for closing the second sequence closing inserted valve, the first accident being connected on principal pressure oil sources inserting
Valve and the second accident inserted valve being connected on servomotor unlatching chamber, first inserted valve and the first accident inserted valve connect respectively
Connect servomotor close chamber on, the second accident inserted valve is connect with oil return box, the pilot-operated type electro-hydraulic reversing valve respectively with
The control chamber connection of first accident inserted valve, the second accident inserted valve, the first inserted valve and the second inserted valve.
It is parallel on the first sequence closing inserted valve and the second sequence closing inserted valve and is opened for increasing servomotor
The check valve of chamber oil mass.
Flow control valve is also parallel on the first sequence closing inserted valve and the second sequence closing inserted valve；Flow tune
Valve is saved, the first segment for adjusting servomotor closes rate slowly.
The first sequence closing inserted valve is that adjustable segment closes inserted valve, and the second segment for adjusting servomotor is fast
Close rate.
First inserted valve, for being truncated or being connected to main control valve and servomotor；Second inserted valve, for being truncated or even
Logical main control valve and servomotor.
First pressure switch and first pressure are provided on the control chamber oil circuit of first inserted valve and the second inserted valve
Table, first pressure switch, pressure controling signal when for monitoring normal switch machine.
Be provided on the control chamber oil circuit of the first accident inserted valve and the second accident inserted valve second pressure switch and
Second pressure gauge, second pressure switch, for monitoring accidental shutdown pressure signal.
Third pressure switch and third pressure gauge are provided on the control chamber oil circuit of the first sequence closing inserted valve, the
Three pressure switches, for monitoring the opening and closing state of the first sequence closing inserted valve.
The 4th pressure switch and the 4th pressure gauge are provided on the control chamber oil circuit of the second sequence closing inserted valve, the
Four pressure switches, for monitoring the opening and closing state of the second sequence closing inserted valve.
The control pressure oil road is provided with the 5th pressure gauge, and the 5th pressure gauge is for monitoring control pressure oil.
Beneficial effects of the present invention are mainly manifested in following aspect:
One, of the invention, be connected to including control pressure oil circuit, by working connection the first inserted valve that main control valve closes on chamber,
Be connected to main control valve open chamber on the second inserted valve, be connected to servomotor open chamber on the first sequence closing inserted valve and
Second sequence closing inserted valve, oil return box, pilot-operated type electro-hydraulic reversing valve, for first point of switch the first sequence closing inserted valve
Section close pilot solenoid valve, for switch the second sequence closing inserted valve the second sequence closing pilot solenoid valve, be connected to master
The first accident inserted valve on pressure oil-source and be connected to servomotor and open the second accident inserted valve on chamber, the first inserted valve and
First accident inserted valve is connected to servomotor and closes on chamber, and the second accident inserted valve is connect with oil return box, and pilot-operated type is electro-hydraulic
Reversal valve is connect with the control chamber of the first accident inserted valve, the second accident inserted valve, the first inserted valve and the second inserted valve respectively,
Pilot-operated type electro-hydraulic reversing valve, for controlled when unit emergency shutdown the opening of the first accident inserted valve and the second accident inserted valve with
And first the closing of inserted valve and the second inserted valve can satisfy pump-storage generator multi tate start-stop compared with the prior art
The requirement of machine, emergency shutdown and overspeed protection comprehensively control, by closing accident inserted valve and sequence closing inserted valve and segmentation
It closes that pilot solenoid valve is highly integrated to be integrated, reduces the connection of oil pipe line, avoid the drawback more than leak source, improve unit fortune
Row reliability and safety.
Two, of the invention, accident inserted valve and sequence closing inserted valve and sequence closing pilot solenoid valve are standard component, are led to
It is high with property and interchangeability, it can satisfy a variety of different emergency cutoff rates on pump-storage generator and booting rate be different from closing
The requirement of machine rate.
Three, of the invention, it is parallel on the first sequence closing inserted valve and the second sequence closing inserted valve for increasing relay
Device opens the check valve of chamber oil mass, and servomotor is begun to speak the flow of side when increasing booting, meets unit to booting time requirement.
Four, of the invention, first pressure switch and the are provided on the control chamber oil circuit of the first inserted valve and the second inserted valve
One pressure gauge；Second pressure switch and second are provided on the control chamber oil circuit of first accident inserted valve and the second accident inserted valve
Pressure gauge；Third pressure switch and third pressure gauge are provided on the control chamber oil circuit of first sequence closing inserted valve；Second point
The 4th pressure switch and the 4th pressure gauge are provided on the control chamber oil circuit of section closing inserted valve；Control pressure oil road is provided with
5th pressure gauge；By the multiple pressure switches of setting and pressure gauge, it can be realized the various action states of remote monitoring valve group,
Facilitate field observation and debugging, guarantees unit safety operation.
Five, of the invention, it using inserting valve arrangement, is easily installed, facilitates system control and inserted valve through-current capability is big, oil resistant
Dirty ability is strong, so that overspeed protection is high, compact-sized with volume control device over all Integration degree.
Six, of the invention, simply, clearly, hydraulic system under each operating condition of pump-storage generator is moved for hydraulic, electrical control logic
It is explicitly defined as mode, simplifies monitoring system control flow, improve the reliability when switching of unit operating condition.
Seven, of the invention, it is being abnormal power loss, coil, which damages, or solenoid valve is stuck waits under extreme cases, as unit is in
When hydraulic turbine condition, it is able to satisfy the rate safety shutdown guide vane that unit closes slowly according to first segment；Remained under pump operating condition according to
The requirement guide vane closing protected and calculated is adjusted, the safety of unit operation is improved.
Detailed description of the invention
The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, in which:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is that the present invention is applied to pump-storage generator closing and opens law curve figure；
Marked in the figure: 1, main control valve closes chamber, the 2, first inserted valve, 3, main control valve open chamber, the 4, second inserted valve, 5, connect
Power device opens chamber, the 6, first sequence closing inserted valve, the 7, second sequence closing inserted valve, 8, oil return box, and 9, pilot-operated type is electro-hydraulic changes
To valve, the 10, first sequence closing pilot solenoid valve, the 11, second sequence closing pilot solenoid valve, 12, principal pressure oil sources, 13,
One accident inserted valve, the 14, second accident inserted valve, 15, servomotor close chamber, 16, check valve, 17, flow control valve, 18, the
One pressure switch, 19, second pressure switch, 20, third pressure switch, the 21, the 4th pressure switch, 22, first pressure gauge, 23,
Second pressure gauge, 24, third pressure gauge, the 25, the 4th pressure gauge, the 26, the 5th pressure gauge；
X is that pump operating condition closes curve, and y is water pump and hydraulic turbine condition opens curve, and z is that hydraulic turbine condition closes curve.
Specific embodiment
Embodiment 1
A kind of overspeed protection and volume control device for hydroenergy storage station, including control pressure oil circuit, pass through working connection
Be connected to main control valve close chamber 1 on the first inserted valve 2, be connected to main control valve open chamber 3 on the second inserted valve 4, even
Connect servomotor open chamber 5 on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7, further include oil return box 8,
Pilot-operated type electro-hydraulic reversing valve 9, for the first sequence closing of switch inserted valve 6 the first sequence closing pilot solenoid valve 10, be used for
Second sequence closing pilot solenoid valve 11 of the second sequence closing of switch inserted valve 7, first be connected on principal pressure oil sources 12
Accident inserted valve 13 and the second accident inserted valve 14 being connected on servomotor unlatching chamber 5, first inserted valve 2 and the first thing
Therefore inserted valve 13 is connected to servomotor and closes on chamber 15, the second accident inserted valve 14 is connect with oil return box 8, the elder generation
Conduction electro-hydraulic reversing valve 9 is inserted with the first accident inserted valve 13, the second accident inserted valve 14, the first inserted valve 2 and second respectively
The control chamber of valve 4 connects.
The present embodiment is most basic embodiment, including controls pressure oil circuit, is connected to main control valve by working connection
Close chamber on the first inserted valve, be connected to main control valve open chamber on the second inserted valve, be connected to servomotor open chamber on
The first sequence closing inserted valve and the second sequence closing inserted valve, oil return box, pilot-operated type electro-hydraulic reversing valve, be used for switch first
First sequence closing pilot solenoid valve of sequence closing inserted valve, the second segmentation pass for switch the second sequence closing inserted valve
Pilot solenoid valve is closed, the first accident inserted valve for being connected on principal pressure oil sources and servomotor is connected to and opens the second thing on chamber
Therefore inserted valve, the first inserted valve and the first accident inserted valve be connected to servomotor close chamber on, the second accident inserted valve with
Oil return box connection, pilot-operated type electro-hydraulic reversing valve respectively with the first accident inserted valve, the second accident inserted valve, the first inserted valve and the
The control chambers of two inserted valves connects, pilot-operated type electro-hydraulic reversing valve, for controlled when unit emergency shutdown the first accident inserted valve and
The opening of second accident inserted valve and the closing of the first inserted valve and the second inserted valve can satisfy compared with the prior art
The requirement of pump-storage generator multi tate startup-shutdown, emergency shutdown and overspeed protection comprehensively control, by by accident inserted valve and
Sequence closing inserted valve and sequence closing pilot solenoid valve is highly integrated is integrated, reduces the connection of oil pipe line, avoids leakage
The more drawback of point, improves unit operational reliability and safety.
Embodiment 2
A kind of overspeed protection and volume control device for hydroenergy storage station, including control pressure oil circuit, pass through working connection
Be connected to main control valve close chamber 1 on the first inserted valve 2, be connected to main control valve open chamber 3 on the second inserted valve 4, even
Connect servomotor open chamber 5 on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7, further include oil return box 8,
Pilot-operated type electro-hydraulic reversing valve 9, for the first sequence closing of switch inserted valve 6 the first sequence closing pilot solenoid valve 10, be used for
Second sequence closing pilot solenoid valve 11 of the second sequence closing of switch inserted valve 7, first be connected on principal pressure oil sources 12
Accident inserted valve 13 and the second accident inserted valve 14 being connected on servomotor unlatching chamber 5, first inserted valve 2 and the first thing
Therefore inserted valve 13 is connected to servomotor and closes on chamber 15, the second accident inserted valve 14 is connect with oil return box 8, the elder generation
Conduction electro-hydraulic reversing valve 9 is inserted with the first accident inserted valve 13, the second accident inserted valve 14, the first inserted valve 2 and second respectively
The control chamber of valve 4 connects.
It is parallel on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7 and is opened for increasing servomotor
Open the check valve 16 of 5 oil mass of chamber.
The present embodiment is a better embodiment, accident inserted valve and sequence closing inserted valve and sequence closing elder generation conductive magnetism
Valve is standard component, and versatility and interchangeability are high, can satisfy on pump-storage generator a variety of different emergency cutoff rates and
The rate that is switched on is different from the requirement of shutdown rate.
It is parallel on first sequence closing inserted valve and the second sequence closing inserted valve and opens chamber oil for increasing servomotor
The check valve of amount, servomotor is begun to speak the flow of side when increasing booting, meets unit to booting time requirement.
Embodiment 3
A kind of overspeed protection and volume control device for hydroenergy storage station, including control pressure oil circuit, pass through working connection
Be connected to main control valve close chamber 1 on the first inserted valve 2, be connected to main control valve open chamber 3 on the second inserted valve 4, even
Connect servomotor open chamber 5 on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7, further include oil return box 8,
Pilot-operated type electro-hydraulic reversing valve 9, for the first sequence closing of switch inserted valve 6 the first sequence closing pilot solenoid valve 10, be used for
Second sequence closing pilot solenoid valve 11 of the second sequence closing of switch inserted valve 7, first be connected on principal pressure oil sources 12
Accident inserted valve 13 and the second accident inserted valve 14 being connected on servomotor unlatching chamber 5, first inserted valve 2 and the first thing
Therefore inserted valve 13 is connected to servomotor and closes on chamber 15, the second accident inserted valve 14 is connect with oil return box 8, the elder generation
Conduction electro-hydraulic reversing valve 9 is inserted with the first accident inserted valve 13, the second accident inserted valve 14, the first inserted valve 2 and second respectively
The control chamber of valve 4 connects.
It is parallel on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7 and is opened for increasing servomotor
Open the check valve 16 of 5 oil mass of chamber.
Flow control valve 17 is also parallel on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7；Stream
Adjustable valve 17, the first segment for adjusting servomotor under hydraulic turbine condition close rate slowly.
The first sequence closing inserted valve 6 is that adjustable segment closes inserted valve, is connect under hydraulic turbine condition for adjusting
The second segment quick closing valve rate of power device.
First inserted valve 2, for being truncated or being connected to main control valve and servomotor；Second inserted valve 4, for be truncated or
It is connected to main control valve and servomotor.
The present embodiment is another better embodiment, using inserting valve arrangement, is easily installed, facilitates system control and inserting
Valve through-current capability is big, resistance to greasy dirt ability is strong, so that overspeed protection is high, compact-sized with volume control device over all Integration degree.
Embodiment 4
A kind of overspeed protection and volume control device for hydroenergy storage station, including control pressure oil circuit, pass through working connection
Be connected to main control valve close chamber 1 on the first inserted valve 2, be connected to main control valve open chamber 3 on the second inserted valve 4, even
Connect servomotor open chamber 5 on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7, further include oil return box 8,
Pilot-operated type electro-hydraulic reversing valve 9, for the first sequence closing of switch inserted valve 6 the first sequence closing pilot solenoid valve 10, be used for
Second sequence closing pilot solenoid valve 11 of the second sequence closing of switch inserted valve 7, first be connected on principal pressure oil sources 12
Accident inserted valve 13 and the second accident inserted valve 14 being connected on servomotor unlatching chamber 5, first inserted valve 2 and the first thing
Therefore inserted valve 13 is connected to servomotor and closes on chamber 15, the second accident inserted valve 14 is connect with oil return box 8, the elder generation
Conduction electro-hydraulic reversing valve 9 is inserted with the first accident inserted valve 13, the second accident inserted valve 14, the first inserted valve 2 and second respectively
The control chamber of valve 4 connects.
It is parallel on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7 and is opened for increasing servomotor
Open the check valve 16 of 5 oil mass of chamber.
Flow control valve 17 is also parallel on the first sequence closing inserted valve 6 and the second sequence closing inserted valve 7；Stream
Adjustable valve 17, the first segment for adjusting servomotor under hydraulic turbine condition close rate slowly.
The first sequence closing inserted valve 6 is that adjustable segment closes inserted valve, is connect under hydraulic turbine condition for adjusting
The second segment quick closing valve rate of power device.
First inserted valve 2, for being truncated or being connected to main control valve and servomotor；Second inserted valve 4, for be truncated or
It is connected to main control valve and servomotor.
First pressure switch 18 and first are provided on the control chamber oil circuit of first inserted valve 2 and the second inserted valve 4
Pressure gauge 22, first pressure switch 18, pressure controling signal when for monitoring normal switch machine.
Second pressure is provided on the control chamber oil circuit of the first accident inserted valve 13 and the second accident inserted valve 14 to open
Close 19 and second pressure gauge 23, second pressure switch 19, for monitoring accidental shutdown pressure signal.
Third pressure switch 20 and third pressure gauge are provided on the control chamber oil circuit of the first sequence closing inserted valve 6
24, third pressure switch 20, for monitoring the opening and closing state of the first sequence closing inserted valve 6.
The 4th pressure switch 21 and the 4th pressure gauge are provided on the control chamber oil circuit of the second sequence closing inserted valve 7
25, the 4th pressure switch 21, for monitoring the opening and closing state of the second sequence closing inserted valve 7.
The control pressure oil road is provided with the 5th pressure gauge 26, and the 5th pressure gauge 26 is for monitoring control pressure oil.
The present embodiment is preferred forms, is provided with first on the control chamber oil circuit of the first inserted valve and the second inserted valve
Pressure switch and first pressure gauge；The second pressure is provided on the control chamber oil circuit of first accident inserted valve and the second accident inserted valve
Power switch and second pressure gauge；Third pressure switch and third pressure are provided on the control chamber oil circuit of first sequence closing inserted valve
Power table；The 4th pressure switch and the 4th pressure gauge are provided on the control chamber oil circuit of second sequence closing inserted valve；Control pressure
The 5th pressure gauge is provided on oil circuit；By the way that multiple pressure switches and pressure gauge is arranged, each of remote monitoring valve group can be realized
Kind action state, also facilitates field observation and debugging, guarantees unit safety operation.
Simply, clearly, hydraulic system manner of execution under each operating condition of pump-storage generator is carried out for hydraulic, electrical control logic
It explicitly defines, simplifies monitoring system control flow, improve the reliability when switching of unit operating condition.
It is being abnormal power loss, coil, which damages, or solenoid valve is stuck waits under extreme cases, as unit is in hydraulic turbine condition
When, it is able to satisfy the rate safety shutdown guide vane that unit closes slowly according to first segment；It remains to protect calculating according to tune under pump operating condition
It is required that guide vane closing, improves the safety of unit operation.
The present invention controls pressure oil circuit and is connected on control pressure oil-source P1.
The principle of hydraulic turbine condition booting is as follows:
Solenoid valve EV03 in pilot-operated type electro-hydraulic reversing valve is in the end b involution side, a of the first sequence closing pilot solenoid valve EV01
The end the b hydraulic turbine condition side for operating normally side and the second sequence closing pilot solenoid valve EV02 is held to obtain electric, pressure oil passes through second
Check valve S1 and flow control valve M1 are respectively enterd after inserted valve CV2, are then parallel to and are entered servomotor unlatching chamber J togetherK.It connects
Power device closes chamber JGOil by the first inserted valve CV1, governor main control valve after return to oil return box.The setting of check valve S1
It increases servomotor and opens chamber JKThe flow of side meets the requirement of this operating condition lower available machine time.The unit most fast available machine time
It adjusts and is realized by the main control valve mechanical position limitation of governor or pipeline supernumerary segment flow.
The principle of pump operating condition booting is as follows:
Solenoid valve EV03 in pilot-operated type electro-hydraulic reversing valve is in the end b involution side, a of the first sequence closing pilot solenoid valve EV01
End operate normally side obtain it is electric, the end a pump operating condition side of the second sequence closing pilot solenoid valve EV02 obtain it is electric, pressure oil pass through second
The second sequence closing inserted valve CV6, check valve S1 and flow control valve M1 are respectively enterd after inserted valve CV2, are then parallel to one
It rises and enters servomotor unlatching chamber JK.Servomotor closes chamber JGOil by the first inserted valve CV1, governor main control valve after return
To oil return box.The adjusting of unit most fast available machine time is still the main control valve mechanical position limitation or pipeline supernumerary segment flow by governor
It realizes.
The principle of emergency cut-off is as follows under hydraulic turbine condition:
Emergency episode occurs in unit, governor cisco unity malfunction can not close servomotor in time, and the revolving speed of unit can be quickly
Runaway speed is risen to, is overrun to limit unit, avoid flying anecdote therefore is occurred, accident inserted valve is set and pilot-operated type is electro-hydraulic changes
It is the important measures for protecting unit safety that servomotor is closed to valve.The case where hydraulic turbine condition issues life group emergency shutdown
When, the first inserted valve CV1 and the second inserted valve after the end a investment side investment of the solenoid valve EV03 in pilot-operated type electro-hydraulic reversing valve
CV2 is closed, and the first accident inserted valve CV3 and the second accident inserted valve CV4 are opened.Pressure oil passes through the first accident inserted valve CV3
Chamber J is closed into servomotorG.The end a of first sequence closing pilot solenoid valve EV01 operates normally side and the second sequence closing is first
The end the b hydraulic turbine condition side of conductive magnet valve EV02 obtains electric, servomotor unlatching chamber JKOil successively by flow control valve M1 and the
Oil return box is returned to after two accident inserted valve CV4.First segment servomotor shutdown rate is controlled by adjusting flow control valve M1.When
After servomotor reaches inflection point, the end the b segmentation investment side of the first sequence closing pilot solenoid valve EV01 is obtained when closing into second segment
Electricity, the first sequence closing inserted valve CV5 are opened, and piping flow increases at this time, and servomotor shutdown rate is accelerated, by adjusting first
The stroke of sequence closing inserted valve CV5 controls this section of servomotor shutdown rate.
When governor does not have failure, i.e. the end a investment side of solenoid valve EV03 in pilot-operated type electro-hydraulic reversing valve is not put into,
First inserted valve CV1 and the second inserted valve CV2 is opened, and the first accident inserted valve CV3 and the second accident inserted valve CV4 are closed, pressure
Power oil enters servomotor by the first inserted valve CV1 and closes chamber JG.The a of first sequence closing pilot solenoid valve EV01 rectifies Chang Yun
Row side and the end the b hydraulic turbine condition side of the second sequence closing pilot solenoid valve EV02 obtain electric, servomotor unlatching chamber JKOil successively
Oil return box is returned to after flow control valve M1 and the second inserted valve CV2, governor main valve.By adjust flow control valve M1 come
Control first segment servomotor shutdown rate.After servomotor reaches inflection point, the first sequence closing guide when being closed into second segment
The end the b segmentation investment side of solenoid valve EV01 obtains electric, the first sequence closing inserted valve CV5 opening, at this time piping flow increase, relay
Device shutdown rate is accelerated, and by adjusting the stroke of the first sequence closing inserted valve CV5, controls this section of servomotor shutdown rate.
The principle of emergency cut-off is as follows under pump operating condition:
In unit generation emergency episode, governor cisco unity malfunction, a of the solenoid valve EV03 in pilot-operated type electro-hydraulic reversing valve
The first inserted valve CV1 and the second inserted valve CV2 is closed after the investment side investment movement of end, the first accident inserted valve CV3 and the second thing
Therefore inserted valve CV4 is opened.Pressure oil enters servomotor by the first accident inserted valve CV3 and closes chamber JG.Second sequence closing is first
The end a pump operating condition side of conductive magnet valve EV02 obtains electric, the second sequence closing inserted valve CV6 unlatching at this time, servomotor unlatching chamber JK
Oil simultaneously by after flow control valve M1, the second sequence closing inserted valve CV6 and together by the second accident inserted valve
Oil return box is returned to after CV4.It is urgent to control servomotor under pump operating condition by the stroke for adjusting the second sequence closing inserted valve CV6
Shutdown rate.
When governor does not have failure, i.e. the end a investment side of solenoid valve EV03 in pilot-operated type electro-hydraulic reversing valve is not put into,
First inserted valve CV1 and the second inserted valve CV2 is opened, and the first accident inserted valve CV3 and the second accident inserted valve CV4 are closed, this
When pump operating condition under most the adjusting of shutdown rate is realized still through the second sequence closing inserted valve CV6 is adjusted fastly.
Machinery overrun hydraulic pressure signal hydraulic fluid port K1 working principle it is as follows:
The machinery hydraulic pressure signal hydraulic fluid port K1 that overruns is connect with the solenoid valve EV03 in pilot-operated type electro-hydraulic reversing valve, and machinery is overrun hydraulic letter
Number hydraulic fluid port K1 receives to work as machine as last pipe protection barrier of generator protection from mechanic over speed protection device pressure oil signal
Group is overrun, when mechanic over speed protection device acts, mechanic over speed protection device pressure oil blackout, and pilot-operated type electro-hydraulic reversing valve
In hydraulic directional valve YD01 realize commutation under the action of the spring, the first inserted valve CV1 and the second inserted valve CV2 are closed；First
Accident inserted valve CV3 and the second accident inserted valve CV4 is opened；The pressure oil for carrying out primary pressure oil sources P0 is inserted by the first accident
Valve CV3 enters servomotor and closes chamber, closes servomotor, rapidly to protect unit safety.
Claims (10)
1. a kind of overspeed protection and volume control device for hydroenergy storage station, including control pressure oil circuit, pass through main oil
Road be connected to main control valve close chamber (1) on the first inserted valve (2), be connected to main control valve open chamber (3) on second insert
Dress valve (4), the first sequence closing inserted valve (6) and the second sequence closing inserted valve being connected in servomotor unlatching chamber (5)
(7), it is characterised in that: further include oil return box (8), pilot-operated type electro-hydraulic reversing valve (9), for the first sequence closing of switch inserted valve
(6) the first sequence closing pilot solenoid valve (10), the second sequence closing elder generation for the second sequence closing of switch inserted valve (7)
Conductive magnet valve (11), the first accident inserted valve (13) being connected on principal pressure oil sources (12) and be connected to servomotor open chamber
(5) the second accident inserted valve (14) on, first inserted valve (2) and the first accident inserted valve (13) are connected to relay
Device is closed on chamber (15), and the second accident inserted valve (14) connect with oil return box (8), the pilot-operated type electro-hydraulic reversing valve (9)
Respectively with the control of the first accident inserted valve (13), the second accident inserted valve (14), the first inserted valve (2) and the second inserted valve (4)
Chamber connection processed.
2. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
It is: is parallel on the first sequence closing inserted valve (6) and the second sequence closing inserted valve (7) and is opened for increasing servomotor
Open the check valve (16) of chamber (5) oil mass.
3. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
It is: is also parallel with flow control valve on the first sequence closing inserted valve (6) and the second sequence closing inserted valve (7)
(17)；Flow control valve (17), the first segment for adjusting servomotor close rate slowly.
4. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
Be: the first sequence closing inserted valve (6) is that adjustable segment closes inserted valve, and the second segment for adjusting servomotor is fast
Close rate.
5. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
It is: first inserted valve (2), for being truncated or being connected to main control valve and servomotor；Second inserted valve (4), for being truncated
Or it is connected to main control valve and servomotor.
6. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
It is: is provided with first pressure switch (18) and the on the control chamber oil circuit of first inserted valve (2) and the second inserted valve (4)
One pressure gauge (22), first pressure switch (18), pressure controling signal when for monitoring normal switch machine.
7. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
It is: is provided with second pressure on the control chamber oil circuit of the first accident inserted valve (13) and the second accident inserted valve (14) and opens
(19) and second pressure gauge (23) are closed, second pressure switchs (19), for monitoring accidental shutdown pressure signal.
8. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
It is: is provided with third pressure switch (20) and third pressure on the control chamber oil circuit of the first sequence closing inserted valve (6)
Table (24), third pressure switch (20), for monitoring the opening and closing state of the first sequence closing inserted valve (6).
9. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
It is: is provided with the 4th pressure switch (21) and the 4th pressure on the control chamber oil circuit of the second sequence closing inserted valve (7)
Table (25), the 4th pressure switch (21), for monitoring the opening and closing state of the second sequence closing inserted valve (7).
10. a kind of overspeed protection and volume control device for hydroenergy storage station according to claim 1, feature
Be: the control pressure oil road is provided with the 5th pressure gauge (26), and the 5th pressure gauge (26) is for monitoring control pressure oil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811151810.1A CN109139350B (en) | 2018-09-29 | 2018-09-29 | Overspeed protection and flow control device for pumped storage power station |
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|---|---|---|---|
| CN201811151810.1A CN109139350B (en) | 2018-09-29 | 2018-09-29 | Overspeed protection and flow control device for pumped storage power station |
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| CN109139350B CN109139350B (en) | 2024-01-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966137A (en) * | 2019-12-23 | 2020-04-07 | 国网新源控股有限公司回龙分公司 | Secondary shutdown control method for pumped storage unit |
| CN112628054A (en) * | 2020-12-17 | 2021-04-09 | 内蒙古呼和浩特抽水蓄能发电有限责任公司 | Method and system for measuring flow of water pump turbine of pumped storage unit |
| CN115875185A (en) * | 2022-11-03 | 2023-03-31 | 中国长江电力股份有限公司 | Overspeed protection device and method for hydroelectric generating set |
Citations (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049396A (en) * | 1989-08-08 | 1991-02-20 | 株式会社日立制作所 | The pumping system of variable speed control |
| JPH06241158A (en) * | 1993-02-10 | 1994-08-30 | Toshiba Corp | Variable velocity power generator, variable velocity pumped storage power generator and drive control of them |
| JP2000097143A (en) * | 1998-09-17 | 2000-04-04 | Tokyo Electric Power Co Inc:The | Pumping-up starting method of pumped storage power station |
| CN2481869Y (en) * | 2000-11-10 | 2002-03-13 | 武汉事达电气有限公司 | Intelligent fuzzy controlled multi-state valve type governor of water turbine |
| JP2002317745A (en) * | 2001-04-18 | 2002-10-31 | Toshiba Corp | Guide vane operating device and method for hydraulic machinery |
| CN2851678Y (en) * | 2005-09-22 | 2006-12-27 | 武汉聚能电气有限公司 | Standardized high pressure resistant accident distributing valve |
| CN200958458Y (en) * | 2006-09-29 | 2007-10-10 | 周泰经 | Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed |
| JP2007303387A (en) * | 2006-05-11 | 2007-11-22 | Toshiba Corp | Speed governor for hydraulic machine |
| CN201155420Y (en) * | 2008-01-08 | 2008-11-26 | 西安理工大学 | Hydroturbine emergency stop device based on cartridge valve |
| US20090152871A1 (en) * | 2007-12-14 | 2009-06-18 | Jose Ong Ching | Multiple energy inputs hydropower system |
| CN201344091Y (en) * | 2009-02-06 | 2009-11-11 | 天津市科音自控设备有限公司 | Two-phase closing and emergency shutdown integrated type distributing valve for hydraulic turbine governing system |
| CN201730732U (en) * | 2010-08-13 | 2011-02-02 | 天津市科音自控设备有限公司 | Control type intelligent speed governor of sectionalized closing and pressure regulating valve |
| CN102042159A (en) * | 2010-11-30 | 2011-05-04 | 国网电力科学研究院 | Stepped closing device capable of adjusting closing rate of pumped storage group |
| CN201963462U (en) * | 2010-11-30 | 2011-09-07 | 国网电力科学研究院 | Segmented closing device for adjusting closing speed of water-pumping and energy-accumulating machine set |
| CN202165210U (en) * | 2011-07-05 | 2012-03-14 | 北京中水科水电科技开发有限公司 | Novel combined type emergency distributing valve and segmental shut-off valve |
| CN102434372A (en) * | 2011-11-29 | 2012-05-02 | 国网电力科学研究院 | Small-scale speed regulator comprehensive adjusting device based on hydraulic pressure integration technology |
| CN102434373A (en) * | 2011-12-23 | 2012-05-02 | 国网电力科学研究院 | Intelligent speed regulator starting control method based on pumped storage unit |
| CN102705150A (en) * | 2012-06-14 | 2012-10-03 | 丰满发电厂 | Step-closing device for speed regulator of water turbine generator set and method thereof |
| CN203175748U (en) * | 2012-11-28 | 2013-09-04 | 东方电机控制设备有限公司 | Emergency distributing valve used for tubular turbine set |
| JP2013223324A (en) * | 2012-04-16 | 2013-10-28 | Torishima Pump Mfg Co Ltd | Water wheel power generation system |
| CN103730904A (en) * | 2013-12-20 | 2014-04-16 | 国家电网公司 | Stopping control system for abnormal separating brake accidents of outlet breaker of pump storage unit |
| US20140197638A1 (en) * | 2013-01-11 | 2014-07-17 | Kabushiki Kaisha Toshiba | Control system of variable speed pumped storage hydropower system and method of controlling the same |
| CN104775983A (en) * | 2014-01-14 | 2015-07-15 | 东方电气集团东方电机有限公司 | Guide blade delay closing system of water pumping energy storage unit |
| CN104963806A (en) * | 2015-07-01 | 2015-10-07 | 中国长江电力股份有限公司 | Power-loss protection system of water turbine generator unit speed regulator |
| CN104993502A (en) * | 2015-07-31 | 2015-10-21 | 国家电网公司 | Primary frequency modulation realization method in power closed loop mode and device thereof |
| CN106089554A (en) * | 2016-06-29 | 2016-11-09 | 绩溪县东安自动化设备科技研发有限公司 | A kind of control method of hydroelectric generator |
| CN107989741A (en) * | 2017-11-08 | 2018-05-04 | 国家电网公司 | The pump-storage generator phase modulation that draws water turns the control method and device of pumping operation mode |
| CN207354084U (en) * | 2017-09-04 | 2018-05-11 | 国家电网公司 | The mechanical braking control device and system of a kind of pumped storage unit |
| CN209100190U (en) * | 2018-09-29 | 2019-07-12 | 东方电气自动控制工程有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
-
2018
- 2018-09-29 CN CN201811151810.1A patent/CN109139350B/en active Active
Patent Citations (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049396A (en) * | 1989-08-08 | 1991-02-20 | 株式会社日立制作所 | The pumping system of variable speed control |
| JPH06241158A (en) * | 1993-02-10 | 1994-08-30 | Toshiba Corp | Variable velocity power generator, variable velocity pumped storage power generator and drive control of them |
| JP2000097143A (en) * | 1998-09-17 | 2000-04-04 | Tokyo Electric Power Co Inc:The | Pumping-up starting method of pumped storage power station |
| CN2481869Y (en) * | 2000-11-10 | 2002-03-13 | 武汉事达电气有限公司 | Intelligent fuzzy controlled multi-state valve type governor of water turbine |
| JP2002317745A (en) * | 2001-04-18 | 2002-10-31 | Toshiba Corp | Guide vane operating device and method for hydraulic machinery |
| CN2851678Y (en) * | 2005-09-22 | 2006-12-27 | 武汉聚能电气有限公司 | Standardized high pressure resistant accident distributing valve |
| JP2007303387A (en) * | 2006-05-11 | 2007-11-22 | Toshiba Corp | Speed governor for hydraulic machine |
| CN200958458Y (en) * | 2006-09-29 | 2007-10-10 | 周泰经 | Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed |
| US20090152871A1 (en) * | 2007-12-14 | 2009-06-18 | Jose Ong Ching | Multiple energy inputs hydropower system |
| CN201155420Y (en) * | 2008-01-08 | 2008-11-26 | 西安理工大学 | Hydroturbine emergency stop device based on cartridge valve |
| CN201344091Y (en) * | 2009-02-06 | 2009-11-11 | 天津市科音自控设备有限公司 | Two-phase closing and emergency shutdown integrated type distributing valve for hydraulic turbine governing system |
| CN201730732U (en) * | 2010-08-13 | 2011-02-02 | 天津市科音自控设备有限公司 | Control type intelligent speed governor of sectionalized closing and pressure regulating valve |
| CN102042159A (en) * | 2010-11-30 | 2011-05-04 | 国网电力科学研究院 | Stepped closing device capable of adjusting closing rate of pumped storage group |
| CN201963462U (en) * | 2010-11-30 | 2011-09-07 | 国网电力科学研究院 | Segmented closing device for adjusting closing speed of water-pumping and energy-accumulating machine set |
| CN202165210U (en) * | 2011-07-05 | 2012-03-14 | 北京中水科水电科技开发有限公司 | Novel combined type emergency distributing valve and segmental shut-off valve |
| CN102434372A (en) * | 2011-11-29 | 2012-05-02 | 国网电力科学研究院 | Small-scale speed regulator comprehensive adjusting device based on hydraulic pressure integration technology |
| CN102434373A (en) * | 2011-12-23 | 2012-05-02 | 国网电力科学研究院 | Intelligent speed regulator starting control method based on pumped storage unit |
| JP2013223324A (en) * | 2012-04-16 | 2013-10-28 | Torishima Pump Mfg Co Ltd | Water wheel power generation system |
| CN102705150A (en) * | 2012-06-14 | 2012-10-03 | 丰满发电厂 | Step-closing device for speed regulator of water turbine generator set and method thereof |
| CN203175748U (en) * | 2012-11-28 | 2013-09-04 | 东方电机控制设备有限公司 | Emergency distributing valve used for tubular turbine set |
| US20140197638A1 (en) * | 2013-01-11 | 2014-07-17 | Kabushiki Kaisha Toshiba | Control system of variable speed pumped storage hydropower system and method of controlling the same |
| CN103730904A (en) * | 2013-12-20 | 2014-04-16 | 国家电网公司 | Stopping control system for abnormal separating brake accidents of outlet breaker of pump storage unit |
| CN104775983A (en) * | 2014-01-14 | 2015-07-15 | 东方电气集团东方电机有限公司 | Guide blade delay closing system of water pumping energy storage unit |
| CN104963806A (en) * | 2015-07-01 | 2015-10-07 | 中国长江电力股份有限公司 | Power-loss protection system of water turbine generator unit speed regulator |
| CN104993502A (en) * | 2015-07-31 | 2015-10-21 | 国家电网公司 | Primary frequency modulation realization method in power closed loop mode and device thereof |
| CN106089554A (en) * | 2016-06-29 | 2016-11-09 | 绩溪县东安自动化设备科技研发有限公司 | A kind of control method of hydroelectric generator |
| CN207354084U (en) * | 2017-09-04 | 2018-05-11 | 国家电网公司 | The mechanical braking control device and system of a kind of pumped storage unit |
| CN107989741A (en) * | 2017-11-08 | 2018-05-04 | 国家电网公司 | The pump-storage generator phase modulation that draws water turns the control method and device of pumping operation mode |
| CN209100190U (en) * | 2018-09-29 | 2019-07-12 | 东方电气自动控制工程有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
Non-Patent Citations (4)
| Title |
|---|
| 刘同安;张建明;张治宇;: "新型组合式事故配压阀及分段关闭阀在安康水电厂的应用", 水电站机电技术, no. 03, pages 79 - 81 * |
| 方仲超;吴开胜;: "浅谈GC-150型过速限制和分段关闭装置在紫兰坝电站的实践", 四川水力发电, no. 02, pages 105 - 107 * |
| 权君宗;谢俊;伍英岩;甘福珍;: "集成插装阀式过速限制和两段关闭装置的设计与应用", 东方电气评论, no. 01, pages 35 - 40 * |
| 黄礼宝;: "SFD200事故配压分段关闭装置控制油源和排油管改造", 红水河, no. 06, pages 67 - 69 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966137A (en) * | 2019-12-23 | 2020-04-07 | 国网新源控股有限公司回龙分公司 | Secondary shutdown control method for pumped storage unit |
| CN110966137B (en) * | 2019-12-23 | 2021-02-05 | 国网新源控股有限公司回龙分公司 | Secondary shutdown control method for pumped storage unit |
| CN112628054A (en) * | 2020-12-17 | 2021-04-09 | 内蒙古呼和浩特抽水蓄能发电有限责任公司 | Method and system for measuring flow of water pump turbine of pumped storage unit |
| CN115875185A (en) * | 2022-11-03 | 2023-03-31 | 中国长江电力股份有限公司 | Overspeed protection device and method for hydroelectric generating set |
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| CN109139350B (en) | 2024-01-26 |
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Effective date of registration: 20190513 Address after: 618000 No. 18, Third Section of Lushan South Road, Deyang City, Sichuan Province Applicant after: DONGFANG ELECTRIC AUTOMATIC CONTROL ENGINEERING Co.,Ltd. Applicant after: DONGFANG ELECTRIC MACHINERY Co.,Ltd. Address before: 618000 No. 138 Jialing Jiangxi Road, Jingyang District, Deyang City, Sichuan Province Applicant before: DFEM ELECTRIC CONTROL EQUIPMENT Co.,Ltd. Applicant before: DONGFANG ELECTRIC MACHINERY Co.,Ltd. |
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