CN201424993Y - Mechanical hydraulic control device for water conduit pressure-regulating valve - Google Patents
Mechanical hydraulic control device for water conduit pressure-regulating valve Download PDFInfo
- Publication number
- CN201424993Y CN201424993Y CN2009200866899U CN200920086689U CN201424993Y CN 201424993 Y CN201424993 Y CN 201424993Y CN 2009200866899 U CN2009200866899 U CN 2009200866899U CN 200920086689 U CN200920086689 U CN 200920086689U CN 201424993 Y CN201424993 Y CN 201424993Y
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- Prior art keywords
- valve
- pressure regulator
- control
- servomotor
- regulator valve
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- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides a mechanical hydraulic control device for a water conduit pressure-regulating valve. Two outlets of an oil controlled valve of a pressure-regulating valve of a servomotor control part of the pressure-regulating valve is communicated with two control ports of a pilot operated directional control valve of the pressure-regulating valve. The pilot operated directional control valve is used as an output element of the switch speed for adjusting the pressure-regulating valve servomotor. A liquid-control one-way throttle valve is disposed on a cavity between the pilot operated directional control valve of the pressure-regulating valve and the pressure-regulating valve servomotor. An oil-control port of the liquid-control one-way throttle valve is connected with a solenoid directional valve of the pressure-regulating valve. A check valve is respectively disposed between the liquid-control one-way throttle valve and the pressure-regulating valve servomotor. An outletof a stroke return valve of a control part of a guide vane servomotor is connected with an inlet of a large fluctuation solenoid valve. An outlet of the large fluctuation solenoid valve is respectively connected with a pressure switch and the control port of the liquid-control one-way throttle valve. The pilot operated check valve is disposed on a cavity oil pipe of the guide vane servomotor.
Description
Technical field
The utility model relates to a kind of conduit pipe pressure regulator valve mechanical-hydraulic control gear, is mainly used in diverting water through pipeline formula water wheels unit.
Background technique
Because of the dam place reasons such as the too small or dam place of net water head should not construct the factory buildings that construct the factory buildings, need dam and factory building are separated the water turbine power station of construction, just need build conduit pipe between dam and the water turbine.Pipeline is divided into hidden pipe and exposed conduit, and hidden pipe is the tunnel, and exposed conduit divides cement pipe and steel pipe.How to combine according to geographical environment and construction scheme with hidden pipe and exposed conduit.Because of the various operating modes in water turbine power station can cause that flow rate of water flow changes in the conduit pipe, build-up of pressure changes.Therefore need build surge shaft on the conduit pipe and discharge the pressure change that causes because of flow velocity change in the pipeline.But a lot of conduit pipe places are owing to reasons such as geographical environment should not be built surge shaft.The pressure regulator valve system is exactly the controlling device of a kind of adjutage internal pressure of occurring under this environment.The effectively adjutage internal pressure fluctuation of pressure regulator valve system, and cost is lower than the cost of building surge shaft.
Summary of the invention
The purpose of this utility model is that the hydrovalve with various functions matches, and designs a kind of conduit pipe pressure regulator valve mechanical-hydraulic control gear, controls pressure regulator valve safely and effectively and regulates pressure surge in the conduit pipe.And when can not normally opening, pressure regulator valve (being relief valve) servomotor also can control the pressure in the conduit pipe.
The technical solution of the utility model: conduit pipe pressure regulator valve mechanical-hydraulic control gear of the present utility model comprises pressure regulator valve servomotor control section and guide vane servomotor control section, and its pressure regulator valve servomotor control section comprises pressure regulator valve solenoid directional control valve, manual switchover valve, pressure regulator valve hydraulic operated valve, the pressure regulator valve high point solenoid directional control valve that connects successively; Two delivery outlets of pressure regulator valve hydraulic operated valve are communicated with two control mouths of pressure regulator valve pilot operated directional control valve, and the pressure regulator valve pilot operated directional control valve is as adjusting the output element of pressure regulator valve servomotor switching speed; On beginning to speak between pressure regulator valve pilot operated directional control valve and the pressure regulator valve servomotor liquid control one-way throttle valve is housed, the control port of liquid control one-way throttle valve links to each other with pressure regulator valve high point solenoid directional control valve; Between pressure regulator valve pilot operated directional control valve, liquid control one-way throttle valve and pressure regulator valve servomotor, check valve is installed respectively; The guide vane servomotor control section comprises that return of stroke valve, great fluctuation process close solenoid valve and liquid control one-way throttle valve, the delivery outlet of return of stroke valve links to each other with the inlet opening that great fluctuation process closes solenoid valve, the delivery outlet that great fluctuation process closes solenoid valve links to each other with the control mouth of pressure switch and liquid control one-way throttle valve respectively, and Pilot operated check valve is installed on the oil pipe of beginning to speak of guide vane servomotor.
Advantage of the present utility model: the utility model conduit pipe pressure regulator valve machinery hydraulic system is to adopt the titer casting die of various functions to form.Function is more complete: have automatic function, manual function, pressure regulator valve servomotor regulate switching time flexible, pressure regulator valve servomotor quick closing valve is arranged and close function slowly, have fragmentation feature and waypoint and split time to adjust flexibly on request, guide vane servomotor can only close function slowly when tightly stopping to link function, control section outage with speed regulator, guide vane servomotor can only close function etc. slowly when the pressure regulator valve system failure can not be opened.And the output of associated contacts signal is arranged.Be easy to install, adjust, safeguard, reduce the production and processing amount and the cycle reduces cost.Because what adopt is the titer casting die, volume reduces greatly, and Leckage is also minimum, can reduce the number of starts of oil gear oil pump, prolongs oil pump working life.
Description of drawings
Fig. 1 is a machinery hydraulic system schematic diagram of the present utility model.
Embodiment
The utility model is to adopt the control system of the titer casting die composition of various functions that the pressure adjustment is carried out in water power plant conduit pipe pressure surge under various operating modes.
The utility model comprises pressure regulator valve servomotor control section and guide vane servomotor control section.
Fig. 1 is a machinery hydraulic system schematic diagram of the present utility model:
Pressure regulator valve servomotor control section is by a pressure regulator valve solenoid directional control valve 1, manual switchover valve 2, pressure regulator valve hydraulic operated valve 4, pressure regulator valve pilot operated directional control valve 5, liquid control one-way throttle valve 8, pressure regulator valve high point solenoid directional control valve 9, two check valves 6 and 10, one great fluctuation processes of 6.1, return of stroke valves close electromagnetism 11 and a liquid control one-way throttle valve 12 is formed.The delivery outlet A of pressure regulator valve solenoid directional control valve 1 links to each other with the inlet A1 of manual switchover valve 2, delivery outlet A2 links to each other with the control mouth A3 of pressure regulator valve hydraulic operated valve 4, two delivery outlet C of pressure regulator valve hydraulic operated valve 4, C1 respectively with two control chamber A4 of pressure regulator valve pilot operated directional control valve 5, A5 links to each other, the delivery outlet B of pressure regulator valve pilot operated directional control valve 5 through liquid control one-way throttle valve 8 and check valve 6 and pressure regulator valve servomotor 7 begin to speak link to each other, delivery outlet B1 links to each other with the chamber, pass of pressure regulator valve servomotor 7 by check valve 6.1, position limit switch K is installed in the complete shut-down position of pressure regulator valve servomotor 7, is used to judge the position situation of pressure regulator valve servomotor 7.
The guide vane servomotor control section comprises that return of stroke valve 10, great fluctuation process close solenoid valve 11 and liquid control one-way throttle valve 12, the delivery outlet A8 of return of stroke valve 10 links to each other with the inlet opening A9 that great fluctuation process closes solenoid valve 11, the delivery outlet A10 that great fluctuation process closes solenoid valve 11 links to each other with the A12 of pressure switch 14 and the control mouth A11 of liquid control one-way throttle valve 12 respectively, and liquid control one-way throttle valve 12 is installed on the oil pipe of beginning to speak of guide vane servomotor.
When conduit pipe pressure was elevated to setting value: pressure regulator valve solenoid directional control valve 1 received the microcomputer signal, 1 action of pressure regulator valve solenoid directional control valve, pressure oil from the P1 mouth to the A mouth, the A1 of the manual switching valve 2 of warp and A2 mouth are to the control mouth A3 of pressure regulator valve hydraulic operated valve 4,4 commutations of control pressure regulator valve hydraulic operated valve, pressure oil is through the P3 of pressure regulator valve hydraulic operated valve 4 mouth and the C1 mouth control chamber A5 to pressure regulator valve pilot operated directional control valve 5,5 actions of control pressure regulator valve pilot operated directional control valve, pressure oil enters beginning to speak of pressure regulator valve servomotor 7 through the B2 of liquid control one-way throttle valve 8 mouth and B3 mouth again through the P4 of pressure regulator valve pilot operated directional control valve 5 mouth and B mouth, pressure regulator valve servomotor 7 to evolution to motion, close side oil and enter oil sump tank to the T2 mouth through the B1 of pressure regulator valve pilot operated directional control valve 5 mouth, because liquid control one-way throttle valve 8 has one-way function, be not subjected to throttling action by the B2 mouth to the hydraulic oil that the B3 mouth flows to, pressure regulator valve servomotor 7 is realized quick opening water discharge step-down.
When conduit pipe pressure dropped to setting value: microcomputer was cancelled the signal of issuing pressure regulator valve solenoid directional control valve 1, pressure regulator valve solenoid directional control valve 1 involution under the spring force effect, pressure regulator valve hydraulic operated valve 4 involution under the spring force effect, the control oil of control mouthful A3 is through manually the A1 of switching valve 2 and the A and the P2 mouth of A2 mouth and pressure regulator valve solenoid directional control valve 1 are got back to oil sump tank.4 commutations of pressure regulator valve hydraulic operated valve, pressure oil is through the P3 of pressure regulator valve hydraulic operated valve 4 mouth and the C mouth control chamber A4 to pressure regulator valve pilot operated directional control valve 5,5 actions of control pressure regulator valve pilot operated directional control valve, pressure oil enters the chamber, pass of pressure regulator valve servomotor 7 through the P4 of pressure regulator valve pilot operated directional control valve 5 mouth and B1 mouth, pressure regulator valve servomotor 7 is to closing the direction motion, open side oil and enter oil sump tank through the B mouth of the B3 of liquid control one-way throttle valve 8 mouth and B2 mouth pressure regulator valve pilot operated directional control valve 5 to the T2 mouth, realization pressure regulator valve servomotor 7 cuts out at a slow speed.Make conduit pipe pressure rise to normal value.
When conduit pipe pressure drops to the negative pressure setting value: pressure regulator valve solenoid directional control valve 1, manual switchover valve 2, pressure regulator valve hydraulic operated valve 4, in the time of operating state when pressure regulator valve pilot operated directional control valve 5 each valve all keep conduit pipe pressure to drop to setting value, microcomputer sends a signal to pressure regulator valve high point solenoid directional control valve 9 and makes its action, pressure oil is through the P5 mouth of pressure regulator valve high point solenoid directional control valve 9 and the A6 mouth control mouth A7 to liquid control one-way throttle valve 8, make liquid control one-way throttle valve 8 commutations, make the hydraulic oil by B3 mouth and B2 mouth not be subjected to throttling action, pressure regulator valve servomotor 7 is realized quick closedown.Make conduit pipe pressure rapidly increase to normal value.
When pressure regulator valve servomotor 7 failed normally to open for some reason: microcomputer was cancelled and is issued the signal that great fluctuation process closes solenoid valve 11, great fluctuation process closes solenoid valve 11 and commutates under the effect of spring force, pressure oil enters A9 mouth and the A10 mouth that great fluctuation process closes solenoid valve 11 through the P6 of return of stroke valve 10 mouth and A8 mouth, lead to the A12 mouth of pressure switch 14 and the A11 mouth of liquid control one-way throttle valve 12 respectively, make pressure switch 14 contacts connect output pressure regulator valve trouble signal, make liquid control one-way throttle valve 12 actions, will be by the hydraulic oil throttling of B4 mouth and B5 mouth, guide vane servomotor 13 can only be closed at a slow speed, thereby make conduit pipe pressure not continue to rise.
When the automatic control system power supply disappeared: microcomputer was issued the blackout that great fluctuation process closes solenoid valve 11, great fluctuation process closes solenoid valve 11 and commutates under the effect of spring force, pressure oil enters A9 mouth and the A10 mouth that great fluctuation process closes solenoid valve 11 through the P6 of return of stroke valve 10 mouth and A8 mouth, lead to the A12 mouth of pressure switch 14 and the A11 mouth of liquid control one-way throttle valve 12 respectively, make pressure switch 14 contacts connect output pressure regulator valve trouble signal, make liquid control one-way throttle valve 12 actions, will be by the hydraulic oil throttling of B4 mouth and B5 mouth, guide vane servomotor 13 can only be closed at a slow speed, thereby make conduit pipe pressure not continue to rise.Other each valve is all remained on the position that makes pressure regulator valve servomotor 7 passes, as shown in Figure 1 by spring force or control oil.
When the hydraulic generator unit has the emergency episode emergency shutdown: emergency shutdown pressure oil through the P2 of pressure regulator valve solenoid directional control valve 1 mouth to the A mouth; the A1 of the manual switching valve 2 of warp and A2 mouth are to the control mouth A3 of pressure regulator valve hydraulic operated valve 4; 4 commutations of control pressure regulator valve hydraulic operated valve; pressure oil is through the P3 of pressure regulator valve hydraulic operated valve 4 mouth and the C1 mouth control chamber A5 to pressure regulator valve pilot operated directional control valve 5; 5 actions of control pressure regulator valve pilot operated directional control valve; pressure oil enters beginning to speak of pressure regulator valve servomotor 7 through the B2 of liquid control one-way throttle valve 8 mouth and B3 mouth again through the P4 of pressure regulator valve pilot operated directional control valve 5 mouth and B mouth; pressure regulator valve servomotor 7 to evolution to motion; close side oil and enter oil sump tank to the T2 mouth through the B1 of pressure regulator valve pilot operated directional control valve 5 mouth; because liquid control one-way throttle valve 8 has one-way function; be not subjected to throttling action by the B2 mouth to the hydraulic oil that the B3 mouth flows to, so pressure regulator valve servomotor 7 is realized quick opening water discharge step-down.
When fault is not removed behind the emergency shutdown; and pressure regulator valve servomotor 7 is when needing to move: but manually-operable manual switchover valve 2; making manual switchover contact 3 connect output signal makes the hydraulic oil of the control mouth A3 of pressure regulator valve hydraulic operated valve 4 get back to oil sump tank through the A2 mouth and the T mouth of manual switching valve 2 simultaneously; pressure regulator valve hydraulic operated valve 4 commutates under the effect of spring force; pressure oil is through the P3 of pressure regulator valve hydraulic operated valve 4 mouth and the C mouth control chamber A4 to pressure regulator valve pilot operated directional control valve 5; 5 actions of control pressure regulator valve pilot operated directional control valve; pressure oil enters the chamber, pass of pressure regulator valve servomotor 7 through the P4 of pressure regulator valve pilot operated directional control valve 5 mouth and B1 mouth; pressure regulator valve servomotor 7 is to closing the direction motion; open side oil and enter oil sump tank through the B mouth of the B3 of liquid control one-way throttle valve 8 mouth and B2 mouth pressure regulator valve pilot operated directional control valve 5 to the T2 mouth, realization pressure regulator valve servomotor 7 cuts out at a slow speed.
Two stop valves 6 and 6.1 are answered standard-sized sheet during proper motion, otherwise can influence the switching time of pressure regulator valve servomotor 7.Only when maintenance with two stop valves 6 and 6.1 complete shut-downs.
What solenoid valve of the present utility model adopted is solenoid directional control valve, can also adopt Solenoid ball valve, Proportional valve, proportional servo valve, servovalve etc.
Core of the present utility model is: system's a part of control pressure regulator valve servomotor, and control automatically that the pressure regulator valve servomotor leaves soon, quick closing valve, close slowly, manually control pressure regulator valve servomotor switch (state signal output is arranged), the accidental shutdown lag function; Another part control liquid control one-way throttle valve, pressure regulator valve has fault normally not open or automatic control system power supply disappearance time control system stator servomotor closes slowly, and trouble signal output is arranged.Therefore no matter how concrete element is replaced, how variation, mounting point change, and all belongs to the utility model protection domain.
Claims (1)
1. conduit pipe pressure regulator valve mechanical-hydraulic control gear, comprise pressure regulator valve servomotor control section and guide vane servomotor control section, it is characterized in that: pressure regulator valve servomotor control section comprises pressure regulator valve solenoid directional control valve (1), manual switchover valve (2), pressure regulator valve hydraulic operated valve (4), the pressure regulator valve high point solenoid directional control valve (9) that connects successively; Two delivery outlets of pressure regulator valve hydraulic operated valve (4) are communicated with two control mouths of pressure regulator valve pilot operated directional control valve (5), and pressure regulator valve pilot operated directional control valve (5) is as adjusting the output element of pressure regulator valve servomotor (7) switching speed; On beginning to speak between pressure regulator valve pilot operated directional control valve (5) and the pressure regulator valve servomotor (7) liquid control one-way throttle valve (8) is housed, the control port of liquid control one-way throttle valve (8) links to each other with pressure regulator valve high point solenoid directional control valve (9); Between pressure regulator valve pilot operated directional control valve (5), liquid control one-way throttle valve (8) and pressure regulator valve servomotor (7), check valve (6) and (6.1) are installed respectively; The guide vane servomotor control section comprises that return of stroke valve (10), great fluctuation process close solenoid valve (11) and liquid control one-way throttle valve (12), the delivery outlet of return of stroke valve (10) links to each other with the inlet opening that great fluctuation process closes solenoid valve (11), the delivery outlet that great fluctuation process closes solenoid valve (11) links to each other with the control mouth of pressure switch (14) with liquid control one-way throttle valve (12) respectively, and Pilot operated check valve (12) is installed on the oil pipe of beginning to speak of guide vane servomotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200866899U CN201424993Y (en) | 2009-06-16 | 2009-06-16 | Mechanical hydraulic control device for water conduit pressure-regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200866899U CN201424993Y (en) | 2009-06-16 | 2009-06-16 | Mechanical hydraulic control device for water conduit pressure-regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201424993Y true CN201424993Y (en) | 2010-03-17 |
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ID=42024439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200866899U Expired - Lifetime CN201424993Y (en) | 2009-06-16 | 2009-06-16 | Mechanical hydraulic control device for water conduit pressure-regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201424993Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065760A (en) * | 2017-06-05 | 2017-08-18 | 峨眉山市驰骋机械制造有限公司 | Power station pressure regulation valve control system |
| CN108226679A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of adjustable test method of servomotor reaction time constant and device |
| CN110608210A (en) * | 2019-08-30 | 2019-12-24 | 武汉船用机械有限责任公司 | Hydraulic control system |
| CN111237271A (en) * | 2020-01-07 | 2020-06-05 | 华自科技股份有限公司 | High oil pressure cartridge formula air-vent valve hydraulic control system |
-
2009
- 2009-06-16 CN CN2009200866899U patent/CN201424993Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065760A (en) * | 2017-06-05 | 2017-08-18 | 峨眉山市驰骋机械制造有限公司 | Power station pressure regulation valve control system |
| CN108226679A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of adjustable test method of servomotor reaction time constant and device |
| CN110608210A (en) * | 2019-08-30 | 2019-12-24 | 武汉船用机械有限责任公司 | Hydraulic control system |
| CN111237271A (en) * | 2020-01-07 | 2020-06-05 | 华自科技股份有限公司 | High oil pressure cartridge formula air-vent valve hydraulic control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100317 |
|
| CX01 | Expiry of patent term |