CN105626596A - Driving system for hydraulically driven movable dams - Google Patents
Driving system for hydraulically driven movable dams Download PDFInfo
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- CN105626596A CN105626596A CN201610098853.2A CN201610098853A CN105626596A CN 105626596 A CN105626596 A CN 105626596A CN 201610098853 A CN201610098853 A CN 201610098853A CN 105626596 A CN105626596 A CN 105626596A
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- pipeline
- valve
- oil cylinder
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- oil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the technical field of driving of movable dams, in particular to a driving system for hydraulically driven movable dams. The driving system comprises an oil tank, an oil pump, oil cylinders, energy accumulators, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first valve, a second valve, a third valve and a fourth valve, wherein an inlet of the oil pump communicates with the oil tank, an outlet of the oil pump communicates with inlets of the oil cylinders by the aid of the first pipeline, and the first valve is arranged on the first pipeline; outlets of the oil cylinders communicate with the oil tank by the aid of the second pipeline, and the second valve is arranged on the second pipeline; the outlet of the oil pump communicates with inlets of the energy accumulators by the aid of the third pipeline, and the third valve is arranged on the third pipeline; the energy accumulators communicate with the inlets of the oil cylinders by the aid of the fourth pipeline, and the fourth valve is arranged on the fourth pipeline. The driving system can drive the oil cylinders to raise the movable dams by the aid of energy stored in the energy accumulators under the power-off condition.
Description
Technical field
The application relates to movable dam actuation techniques field, particularly relates to a kind of hydraulic-driven movable dam drive system.
Background technology
In recent years, hinge movable dam can lift due to its dam body, is increasingly widely applied in hydraulic engineering. Movable dam rises dam and is generally adopted oil cylinder to drive the rise of dam facing. It is all by driven by motor Hydraulic Station that current hydraulic engineering movable dam rises, and produces hydraulic pressure and realizes oil cylinder and stretch control panel lifting.
And in the event of a loss of power, traditional drive system cannot rely on energy that Hydraulic Station produces to rise movable dam. When upper river and reservoir need water-retention, failing to rise movable dam in time, the waste of the water-retention to upper river can be caused or threaten the safety in downstream.
When movable dam rises to required position, stop powering to movable dam, make movable dam be maintained at this position. And when for a long time movable dam not being powered, after movable dam runs to the regular period, the risk that the indivedual dams that will exist in which are fanned part slump and leaked. It is therefore desirable to Hydraulic Station continues to movable dam ftercompction.
Now, if had a power failure, traditional drive system also just cannot operant activity dam, and then also just cannot give movable dam ftercompction.
Summary of the invention
This application provides a kind of hydraulic-driven movable dam drive system, when having a power failure or do not power for a long time, it is possible to rely on the energy of Hydraulic Station deposit to rise several movable dam, the demand on dam thus solution should rise suddenly.
This application provides a kind of hydraulic-driven movable dam drive system, including: fuel tank, oil pump, oil cylinder, accumulator, the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the first valve, the second valve, the 3rd valve and the 4th valve, the entrance of described oil pump connects with described fuel tank, described oil delivery side of pump is connected with the entrance of described oil cylinder by described first pipeline, force feed in described fuel tank is flowed in described oil cylinder by described first pipeline, and described first valve is arranged on described first pipeline; The outlet of described oil cylinder is connected with described fuel tank by described second pipeline, and described in-oil cylinder force feed flows back in fuel tank by described second pipeline, and described second valve is arranged on described second pipeline; Described oil delivery side of pump is connected with described accumulator by described 3rd pipeline, and the force feed in described oil pump is flowed in described accumulator by described 3rd pipeline, and described 3rd valve is arranged on described 3rd pipeline; Described accumulator is connected with the entrance of described oil cylinder by described 4th pipeline, and the force feed in described accumulator is flowed in described oil cylinder by the 4th pipeline, and described 4th valve is arranged on described 4th pipeline.
Preferably, described first valve is stop valve or check valve; Described second valve is stop valve; Described 3rd valve is check valve; Described 4th valve is stop valve.
Preferably, described second pipeline also sets up check valve; Described 4th pipeline also sets up check valve.
Preferably, described hydraulic-driven movable dam drive system also includes handlance, the 5th pipeline and the 5th valve, the entrance of described handlance connects with described fuel tank, the outlet of described handlance is connected with the entrance of described oil cylinder by described 5th pipeline, and described 5th valve is arranged on described 5th pipeline.
Preferably, described 5th valve is check valve.
Preferably, described hydraulic-driven movable dam drive system also includes reversal valve, and described reversal valve is arranged on described first pipeline.
Preferably, described hydraulic-driven movable dam drive system also includes pressure switch and control centre, and described pressure switch is arranged on described first pipeline, and described pressure switch communicates with described control centre.
Preferably, described hydraulic-driven movable dam drive system also includes the first overflow valve, and the entrance of described first overflow valve accesses described first pipeline, and the outlet of described first overflow valve accesses described fuel tank by the 6th pipeline.
Preferably, described hydraulic-driven movable dam drive system also includes the second overflow valve, and the entrance of described second overflow valve connects with described accumulator, and the outlet of described second overflow valve accesses described 6th pipeline.
Preferably, described hydraulic-driven movable dam drive system also includes the 6th valve, and described 6th valve is in parallel with described second overflow valve.
The technical scheme that the application provides can reach following beneficial effect:
Hydraulic-driven movable dam drive system provided herein by setting up accumulator in drive system, on the one hand when energising, oil cylinder can be ordered about by electrodynamic pump and rise movable dam, on the other hand in the event of a power failure, oil cylinder can be ordered about by the energy stored in accumulator and rise movable dam, therefore when power is off, it is possible to rise movable dam in time, thus avoiding the waste of the water-retention to upper river or threatening the safety in downstream.
It should be appreciated that above general description and details hereinafter describe and be merely illustrative of, the application can not be limited.
Accompanying drawing explanation
The overall structure schematic diagram of the hydraulic-driven movable dam drive system that Fig. 1 provides for the embodiment of the present application.
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet embodiments herein, and for explaining the principle of the application together with description.
Detailed description of the invention
Below by specific embodiment and in conjunction with accompanying drawing, the application is described in further detail. "front", "rear" described in literary composition, "left", "right", " on ", D score all with in accompanying drawing pole piece mend lithium system laying state for reference.
As shown in Figure 1, the embodiment of the present application provides a kind of hydraulic-driven movable dam drive system, this system includes fuel tank 101, oil pump 102, oil cylinder 103 and accumulator 104, wherein, the entrance of oil pump 102 connects with fuel tank 101, and the outlet of oil pump 102 is connected with the entrance of oil cylinder 103 by the first pipeline 105; Oil pump 102 is connected to motor. First pipeline is provided with stop valve 107a and check valve 110a, stop valve and check valve can be respectively multiple.
So, in energising situation: driven by motor oil pump 102 is from the inner absorption force feed of fuel tank 101, and force feed is pressed in oil cylinder 103 in part through the first pipeline 105, oil cylinder 103 is positioned under the dam facing of movable dam, and be connected with dam facing, therefore the oil pressure of force feed can order about oil cylinder 103 and drives dam facing to rise.
Wherein, the entrance of accumulator 104, by the 3rd pipeline 108 and the outlet of oil pump 102, the 3rd pipeline 108 sets check valve 110c; The outlet of accumulator 104 is connected with the entrance of oil cylinder 103 by the 4th pipeline 109, and the 4th pipeline 109 is provided with stop valve 107d and check valve 110d. While dam facing rises, the another part of the force feed that oil pump 102 is drawn from fuel tank 101 is pressed in accumulator 104 by the 3rd pipeline 108, accumulator 104 oil in reserve pressure energy.
Wherein, Bonding pressure relay 111 on the first pipeline 105, pressure switch 111 communicates with control centre, after oil cylinder 103 drives movable dam to be raised to position, pressure switch 111 closes, and 111 signals of pressure switch pass to control centre, and control centre can stop oil-feed pump 102 and motor is powered, oil pump 102 and motor quit work, and the dam facing of movable dam also remains in the position of setting.
Wherein, the outlet of oil cylinder 103 is connected with fuel tank 101 by the second pipeline 106, and the second pipeline 106 is provided with stop valve 107b and check valve 110b. When the water level in river course exceedes the water level of regulation, stop valve 107b on second pipeline 106 is opened, the force feed on the second pipeline 106 of the outlet with oil cylinder 103 is made to flow back to fuel tank 101, under the External Force Acting of water pressure, dam body deadweight and oil cylinder deadweight, the piston rod of oil cylinder 103 is to contract, and movable dam lands.
It should be understood that when liter dam, the stop valve 107b on the second pipeline 106 closes, say, that when rising dam, force feed cannot flow back in fuel tank 101 in oil cylinder 103, thus effectively prevent the situation on the dam that automatically falls and produce.
But, supply without electricity in remote mountain areas, or in the event of a loss of power, or be not long-term uninterrupted power supply, oil pump 102 cannot work, and provides oil pressure energy also just cannot to oil cylinder 103, and then rely on oil pump 102 to be risen by movable dam. In this case, open the stop valve 107d on the 4th pipeline 109, owing to the 3rd pipeline 108 is provided with check valve 110c, force feed can not flow backwards from the 3rd pipeline 108, therefore, the force feed that accumulator 104 stores enters oil cylinder 103 by the 4th pipeline 109, and the oil pressure of force feed can order about oil cylinder 103 and drive the dam facing of movable dam to rise. It should be understood that the effect of the check valve 110 being respectively provided with on first pipeline the 105, second pipeline the 106, the 3rd pipeline the 108, the 4th pipeline 109 is all prevent force feed adverse current.
First pipeline 105 sets check valve 110a, this is because: when oil pump 102 quits work, it is pressed in the force feed meeting reverse flow scavenge oil pump 102 in oil cylinder 103, the dam thus the movable dam risen will fall. And set check valve 110a at this it is prevented that force feed adverse current, thus also it is prevented that the situation on the dam that automatically falls produces.
Second pipeline 106 sets check valve 110b, this is because: when needs fall dam, it is usually the stop valve 107b opened on the second pipeline, force feed can flow back in fuel tank 101 from the second pipeline 106, and a part of force feed meeting adverse current on the second pipeline 106 is in oil cylinder 103, thus movable dam cannot decline smoothly. And check valve 110b is set at this and is just effectively prevented force feed adverse current, thus also ensure that movable dam declines smoothly.
3rd pipeline 108 sets check valve 110c, this is because: when oil pump 102 quits work, it is pressed in the force feed meeting reverse flow scavenge oil pump 102 in accumulator 104, the dam thus the movable dam risen will fall. And arrange check valve 110c at this and be just effectively prevented force feed adverse current, thus the situation on the dam that also can effectively prevent from automatically falling produces.
4th pipeline 109 sets check valve 110d, this is because: when having a power failure, it is necessary to when accumulator 104 is to oil cylinder supply oil pressure energy, force feed, in the process flowing into oil cylinder, the situation of adverse current also can occur, thus affecting the rise of dam facing. And check valve 110d is set at this and is just effectively prevented force feed adverse current, thus also ensure that movable dam rises smoothly.
In the embodiment shown in fig. 1, hydraulic-driven movable dam drive system is additionally provided with handlance 112, the entrance of handlance 112 connects with fuel tank 101, and the outlet of handlance 112 is connected with oil cylinder 103 entrance by the 5th pipeline 113, and the 5th pipeline 113 is provided with check valve 110e.
When accumulator 104 starts repeatedly, after repeatedly rising movable dam, force feed in accumulator 104 can be just depleted, now, move handlance 112, force feed drawn by handlance 112 from fuel tank 101, and force feed enters oil cylinder 103 by the 5th pipeline 113, and the oil pressure of force feed can order about oil cylinder 103 and drive dam facing to rise.
It should be understood that the effect setting check valve 110e on the 5th pipeline 113 is to prevent force feed adverse current, affects dam facing and rise.
In the embodiment shown in fig. 1, in hydraulic-driven movable dam drive system, also set up the first overflow valve 115 and the second overflow valve 116.
Wherein, the entrance of the first overflow valve 115 accesses the first pipeline 105, and the outlet of the first overflow valve 115 accesses fuel tank 101 by the 6th pipeline 114. When oil pump 102 rushes oil pressure energy to oil cylinder 103, the pressure of oil cylinder 103 can constantly raise, until during marginal value, the force feed outside marginal value is led back to fuel tank 101 by the first overflow valve 115. Marginal value mentioned here refers to: when dam facing is increased to the position of needs, pressure when oil cylinder 103 is full of again by force feed.
Wherein, the entrance of the second overflow valve 116 connects with accumulator 104, and the outlet of the second overflow valve 116 accesses the 6th pipeline 114. When oil pump 102 rushes oil pressure energy to accumulator 104, the pressure of accumulator 104 raises, and during to marginal value, the force feed outside marginal value is led back to fuel tank 101 by the second overflow valve 116. Marginal value mentioned here refers to: pressure when accumulator 104 is full of by force feed.
In the embodiment shown in fig. 1, accumulator 104 is also associated with stop valve 107c, stop valve 107c and the parallel connection of the second overflow valve 116. When needs inflation, adjustment, inspection, maintenance are shut down for a long time, open stop valve 107c so that force feed stops flowing, thus can facilitate and be operated with safe.
In the embodiment shown in fig. 1, in hydraulic-driven movable dam jacking system, it is additionally provided with reversal valve 117. Reversal valve 117 is arranged on the first pipeline 105 effect of reversal valve 117 two, and a direction being to change force feed flow, another regulates the size of force feed flow. That is when by oil pump 102 to oil cylinder 103 punching oil, the flow direction of force feed can change with the change of environment, and reversal valve 117 herein just can reach to change the purpose in force feed direction. And when to oil cylinder 103 pressurising, owing to oil mass too conference damages oil cylinder 103 because of hypertonia, and oil mass is too little it cannot be guaranteed that oil cylinder 103 has enough hydraulic energies to order about dam facing rise, therefore, the effect of the adjustment force feed uninterrupted of reversal valve 117 can solve the problem that this problem.
It should be understood that reversal valve 117 is between oil pump 102 and pressure switch 111, and pressure switch 111 is between reversal valve 117 and oil cylinder 103; After oil cylinder 103 drives movable dam to be raised to position, pressure switch 111 closes, and 111 signals of pressure switch pass to control centre, and control centre also can stop powering to reversal valve 117, and reversal valve 117 also just quits work.
Accumulator 104 in the application is multiple, and multiple described accumulators 104 are in parallel. Multiple accumulators 104 also imply that and can store more oil pressure energy, thus also just when without electricity supply, it is possible to the force feed provided to oil cylinder 3 can be also just more.
In this application, it is possible on all pipelines in hydraulic-driven movable dam drive system, be arranged as required to multiple stop valve, use for adjusting, check, keeping in repair.
In addition, it is necessary to illustrate: general activity dam all includes multiple fan Ba Men, therefore also it is accomplished by rising this multiple fan Ba Men simultaneously. At this point it is possible to when energising, the stop valve 107d on the 4th pipeline 109 is opened, say, that accumulator 104 and oil pump 102 work, so can shorten a liter dam time simultaneously.
In addition, accumulator 104 is connected by the 4th pipeline 109 with oil cylinder 103, when Hydraulic Station does not work, when dam facing is produced concussion by the water wave in river course, owing to the reversal valve 117 in system is generally electromagnetic valve, the electromagnetism valve rod of electromagnetic valve and seat are fit clearance, electromagnetism valve rod action can be made, make the pressure of system decline, when occurring that system pressure declines, accumulator 4 store hydraulic energy can timely topping up in hydraulic system, maintenance pressure.
The work process of the hydraulic-driven movable dam drive system that the application provides is:
In step one, energising situation: force feed drawn by driven by motor oil pump 102 from fuel tank 101, force feed is pressed into oil cylinder 103 in part through the first pipeline 105 by oil pump 102, the oil pressure of force feed can order about oil cylinder 103 and drive dam facing to rise, simultaneously, another part of force feed is pressed into accumulator 104, accumulator 104 oil in reserve pressure energy by the second pipeline 106;
Step 2, on the first pipeline 105, connect the first overflow valve 115, the entrance of the first overflow valve 115 is accessed the first pipeline 105, the outlet of the first overflow valve 115 is accessed fuel tank 101 by the 6th pipeline 114, when oil pump 102 rushes oil pressure energy to oil cylinder 103, the pressure of oil cylinder 103 raises, during to marginal value, the force feed outside marginal value can be led back to fuel tank 101 by the first overflow valve 115;
Step 3, the second overflow valve 116 is set in the outlet of accumulator 104, the entrance of the second overflow valve 116 is accessed accumulator 104, the outlet of the second overflow valve 116 is accessed fuel tank 101 by the 6th pipeline 114, when oil pump 102 rushes oil pressure energy to accumulator 104, the pressure of accumulator 104 raises, during to marginal value, the force feed outside marginal value is led back to fuel tank 101 by the second overflow valve 116.
Under step 4, powering-off state: open the stop valve 107d on the 4th pipeline, the oil pressure that accumulator 104 stores can pass through the 4th pipeline 109 and enter oil cylinder 103, and oil pressure can order about oil cylinder 103 and drive dam facing to rise;
Step 5, on the first pipeline 105 Bonding pressure relay 111, pressure switch 111 communicates with control centre, after oil cylinder 103 is raised to position, pressure switch 111 closes, 111 signals of pressure switch pass to control centre, control centre can stop oil-feed pump 102 and motor is powered, and oil pump 102 and motor quit work.
Step 6, when the water level in river course exceedes the water level of regulation, stop valve 107b on second pipeline 106 is opened, the force feed on the second pipeline 106 of the outlet with oil cylinder 103 is made to flow back to fuel tank 101, under the External Force Acting of water pressure, dam body deadweight and oil cylinder 103 deadweight, the piston rod of oil cylinder 3 is to contract, and movable dam lands.
Step 7, start repeatedly when accumulator 104, when exhausting the oil pressure energy in accumulator 104 after repeatedly rising movable dam, move handlance 112, the force feed in fuel tank 101 drawn by handlance 112, force feed enters oil cylinder 103 by the check valve 110e on the 5th pipeline 113, and the oil pressure of force feed can order about oil cylinder 103 and drive dam facing to rise.
Hydraulic-driven movable dam drive system provided herein by setting up accumulator 104 in drive system, on the one hand when having electric, oil pump 102 can be passed through and order about oil cylinder rise movable dam, on the other hand in the event of a power failure, oil cylinder 103 can be ordered about by the energy of the inner storage of accumulator 104 and rise movable dam, therefore when without electric power, it is possible to rise movable dam in time, thus avoiding the waste of the water-retention to upper river or threatening the safety in downstream. Hydraulic-driven movable dam jacking system simple in construction provided herein, cost durable in use, easy to maintenance are relatively low.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for a person skilled in the art, the application can have various modifications and variations. All within spirit herein and principle, any amendment of making, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a hydraulic-driven movable dam drive system, it is characterised in that including: fuel tank, oil pump, oil cylinder, accumulator, the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the first valve, the second valve, the 3rd valve and the 4th valve,
The entrance of described oil pump connects with described fuel tank, described oil delivery side of pump is connected with the entrance of described oil cylinder by described first pipeline, force feed in described fuel tank is flowed in described oil cylinder by described first pipeline, and described first valve is arranged on described first pipeline; The outlet of described oil cylinder is connected with described fuel tank by described second pipeline, and described in-oil cylinder force feed flows back in described fuel tank by described second pipeline, and described second valve is arranged on described second pipeline;
Described oil delivery side of pump is connected with described accumulator by described 3rd pipeline, and the force feed in described oil pump is flowed in described accumulator by described 3rd pipeline, and described 3rd valve is arranged on described 3rd pipeline;
Described accumulator is connected with the entrance of described oil cylinder by described 4th pipeline, and the force feed in described accumulator is flowed in described oil cylinder by described 4th pipeline, and described 4th valve is arranged on described 4th pipeline.
2. hydraulic-driven movable dam drive system according to claim 1, it is characterised in that
Described first valve is stop valve or check valve;
Described second valve is stop valve;
Described 3rd valve is check valve;
Described 4th valve is stop valve.
3. hydraulic-driven movable dam drive system according to claim 2, it is characterised in that
Described second pipeline arranges check valve;
Described 4th pipeline arranges check valve.
4. hydraulic-driven movable dam drive system according to claim 1, it is characterised in that also include handlance, the 5th pipeline and the 5th valve,
The entrance of described handlance connects with described fuel tank, and the outlet of described handlance is connected with the entrance of described oil cylinder by described 5th pipeline, and described 5th valve is arranged on described 5th pipeline.
5. hydraulic-driven movable dam drive system according to claim 4, it is characterised in that
Described 5th valve is check valve.
6. hydraulic-driven movable dam drive system according to claim 1, it is characterised in that also include reversal valve,
Described reversal valve is arranged on described first pipeline.
7. hydraulic-driven movable dam drive system according to claim 1, it is characterised in that also include pressure switch and control centre,
Described pressure switch is arranged on described first pipeline, and described pressure switch communicates with described control centre.
8. hydraulic-driven movable dam drive system according to claim 1, it is characterised in that also include the first overflow valve,
The entrance of described first overflow valve accesses described first pipeline, and the outlet of described first overflow valve accesses described fuel tank by the 6th pipeline.
9. hydraulic-driven movable dam drive system according to claim 8, it is characterised in that also include the second overflow valve,
The entrance of described second overflow valve connects with described accumulator, and the outlet of described second overflow valve accesses described 6th pipeline.
10. hydraulic-driven movable dam drive system according to claim 9, it is characterised in that also include the 6th valve,
Described 6th valve is in parallel with described second overflow valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610098853.2A CN105626596A (en) | 2016-02-23 | 2016-02-23 | Driving system for hydraulically driven movable dams |
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| CN201610098853.2A CN105626596A (en) | 2016-02-23 | 2016-02-23 | Driving system for hydraulically driven movable dams |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107152424A (en) * | 2017-06-19 | 2017-09-12 | 中国水利水电科学研究院 | A kind of accurate lifting hydraulic control system and hinge movable dam |
| CN107559259A (en) * | 2017-08-25 | 2018-01-09 | 中国水利水电科学研究院 | Hydraulic control system and hinge dam assembly |
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| CN204704167U (en) * | 2015-06-03 | 2015-10-14 | 浙江伟光泵阀制造有限公司 | Double loop energy storage type hydraulic control slow closing valve hydraulic station |
| CN105275896A (en) * | 2015-11-09 | 2016-01-27 | 北京中水科工程总公司 | Mechanical power-source-free dam descending device for hydraulically-driven movable dam |
| CN205423352U (en) * | 2016-02-23 | 2016-08-03 | 中国水利水电科学研究院 | Hydraulic drive movable dam actuating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107152424A (en) * | 2017-06-19 | 2017-09-12 | 中国水利水电科学研究院 | A kind of accurate lifting hydraulic control system and hinge movable dam |
| CN107559259A (en) * | 2017-08-25 | 2018-01-09 | 中国水利水电科学研究院 | Hydraulic control system and hinge dam assembly |
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Application publication date: 20160601 |