CN102620041A - Electrohydraulic system for driving large-size valve by using solar low-power power supply - Google Patents
Electrohydraulic system for driving large-size valve by using solar low-power power supply Download PDFInfo
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- CN102620041A CN102620041A CN2012101190146A CN201210119014A CN102620041A CN 102620041 A CN102620041 A CN 102620041A CN 2012101190146 A CN2012101190146 A CN 2012101190146A CN 201210119014 A CN201210119014 A CN 201210119014A CN 102620041 A CN102620041 A CN 102620041A
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Abstract
The invention provides an electrohydraulic system for driving a large-size valve by using solar low-power power supply and aims at solving the problems that the equipment cost, the action cost and the maintenance cost of the system are remarkably increased because a valve used on a field oil and gas delivering pipeline is driven by being matched with a high-power alternating current power supply. The electrohydraulic system is characterized in that a solar low-power power supply is used; electric energy generated by the solar low-power power supply is converted into hydraulic energy; the hydraulic energy is stored and continuously accumulated; and when the valve acts, the stored and accumulated hydraulic energy is converted into mechanical energy for releasing to drive the valve on the field oil and gas delivering pipeline to act. The electrohydraulic system disclosed by the invention has the benefits that due to the adoption of the solar low-power power supply, the equipment cost, the action cost and the maintenance cost of the system are greatly reduced, the input-output ratio of the system is remarkably increased and the system becomes a real green system.
Description
Technical field
The present invention relates to a kind of electrichydraulic control drive system, be to use the solar energy small-power power specifically, the moving a kind of electrohydraulic control system that drives large-scale valve.
Background technique
The said large-scale valve of the present invention is meant the valve that uses on open-air oil transportation or the tracheae line; Comprise straight stroke valve (like gate valve, stop valve) and angular travel valve (like ball valve, dish valve); Wherein, The power that drives straight stroke valve is 100-1040KN, and its equivalent output power range is 500 ~ 3500W; The moment of torsion that drives angular travel valve is 500-110000Nm, and its equivalent output power range is 500 ~ 4000W.Drive so large-scale valve and need mate powerful ac power supply, because of being ac power supply and AC motor, need inrush current again.Moreover use ac power supply in the open air, also need dispose correspondingly power transmission and transforming equipment, so cause equipment cost, action cost and the maintenance cost of system obviously to rise.If adopt the big-power solar power supply for satisfying system requirements, the equipment cost of system is obviously increased.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this invention is to provide a kind of electrohydraulic system that utilizes the large-scale valve of solar energy small-power powered.
According to the valve on open-air oil transportation or the gas transmission line is not frequent action; And the field possesses this characteristic of solar energy; Design of the present invention is: utilize solar energy small-power power power supply, the electric energy that again the solar energy small-power power is produced becomes that hydraulic pressure can store and constantly accumulation, when the needs valve event; The hydraulic pressure that stores after accumulating can be become mechanical energy release, to drive valve.
The technological scheme that realizes the present invention's design is: the solar energy small-power power (refers to 24VDC; Power is 200 ~ 500W) drive stepping motor and oil pumps successively; Hold and establish fuel tank, oil pump, one-way valve, threeway and hydraulic accumulator (to call accumulator in the following text) on the oil pipeline successively, the remaining mouth of threeway connects oil pipeline; The filler opening of 3-position 4-way solenoid directional control valve (to call selector valve in the following text) connects oil pipeline; The two ends of oil return pipeline are connected on the return opening of selector valve and the return opening of fuel tank respectively; Two oil outlets of selector valve (A mouth and B mouth) are received two hydraulic fluid ports of two oil pocket oil cylinders (below be called oil cylinder) respectively through pipeline separately, and the piston rod of oil cylinder drives the valve shaft or the valve rod of valve.
When valve is failure to actuate; Oil pump is under the driving of solar energy small-power power and stepper motor; Constantly the oil in the fuel tank is pumped in the accumulator through holding oil pipeline, become that hydraulic pressure can store and constantly accumulation, realize becoming hydraulic pressure can and store transformation of electrical energy.
When valve needs positive action; The one side electromagnet action of selector valve; The filler opening of selector valve and the connection of A oil outlet, return opening and B oil outlet are connected, and the hydraulic oil in the accumulator through the filler opening of threeway, selector valve and the rodless cavity of A oil outlet entering oil cylinder, promotes piston rod and outwards moves successively; And then driving the valve positive action, the oil of the rod chamber of oil cylinder flows back to fuel tank through the B oil outlet and the return opening of selector valve successively simultaneously; When valve needs counteragent; The opposite side electromagnet action of selector valve; The filler opening of selector valve and the connection of B oil outlet, return opening and A oil outlet are connected, and the hydraulic oil in the accumulator through the filler opening of threeway, selector valve and the rod chamber of B oil outlet entering oil cylinder, promotes piston rod and moves inward successively; And then driving the valve counteragent, the oil of the rodless cavity of oil cylinder flows back to fuel tank through the A oil outlet and the return opening of selector valve successively simultaneously.
Compared with prior art; Good effect of the present invention is: it adopts solar energy small-power power and stepper motor, no inrush current, and the power supply of selection does not need excessive configuration; Adaptive getting final product; Make equipment cost, operating cost and the maintenance cost of system reduce greatly, the input-output ratio of system is improved significantly, become real green system.
Description of drawings
Fig. 1 is the electrohydraulic system schematic representation of the large-scale straight stroke valve of solar energy small-power powered.
Fig. 2 is the electrohydraulic system schematic representation of the large-scale angular travel valve of solar energy small-power powered.
Embodiment
Embodiment one: the electrohydraulic system of the large-scale straight stroke valve of solar energy small-power powered
Referring to Fig. 1, power is 24VDC solar energy small-power power 1 drive stepping motor 2 and oil pump 3 successively of 200 ~ 500W, holds and establishes fuel tank 5, oil pump, one-way valve 6, threeway 7 and accumulator 10 on the oil pipeline 4 successively, and the remaining mouth of threeway connects oil pipeline 16; The filler opening of selector valve 12 is that the P mouth connects oil pipeline; The return opening that the two ends of oil return pipeline 15 are connected on selector valve respectively is the return opening of T mouth and fuel tank; Two oil outlets of selector valve (A mouth and B mouth) are received two hydraulic fluid ports of oil cylinder 13 respectively through pipeline separately, the be rigidly connected valve rod 14 of gate valve or stop valve of the piston rod 131 of oil cylinder.Also be provided with pressure-display and monitoring device 9 on the oil pipeline between threeway and the accumulator; Comprise a pressure switch that is used to show the pressure gauge and a control step motor of accumulator internal pressure in pressure-display and the monitoring device, pressure switch is closed stepper motor when the accumulator internal pressure is higher than limit value.Between the return opening of fuel tank and accumulator, vent line 17 is set, a switch valve 8 is set, when being used to overhaul, oil in the accumulator is drained in the fuel tank at this vent line.On last oil pipeline 16, speed regulator 11 is set.
When valve is failure to actuate; Oil pump constantly pumps into the oil in the fuel tank in the accumulator through holding oil pipeline under the driving of solar energy small-power power and stepper motor; Become that hydraulic pressure can store and constantly accumulation, realize becoming hydraulic pressure can and store transformation of electrical energy.
When valve need close action; The one side electromagnet action of selector valve; The P mouth of selector valve and the connection of A mouth, T mouth and B oil outlet are connected, and the hydraulic oil in the accumulator through the P mouth of threeway, selector valve and the rodless cavity of A mouth entering oil cylinder, promotes piston rod and outwards moves successively; And then the promotion valve closing, the oil of the rod chamber of oil cylinder flows back to fuel tank through the B mouth and the T mouth of selector valve successively simultaneously; When valve needs breakdown action; The opposite side electromagnet action of selector valve; The P mouth of selector valve and the connection of B mouth, T mouth and A mouth are connected, and the hydraulic oil in the accumulator through the P mouth of threeway, selector valve and the rod chamber of B mouth entering oil cylinder, promotes piston rod and moves inward successively; And then the driving valve opening, the oil of the rodless cavity of oil cylinder flows back to fuel tank through the A mouth and the T mouth of selector valve successively simultaneously.
Embodiment two: the electrohydraulic system of the large-scale angle of solar energy small-power powered stroke type valve
Referring to Fig. 2; Embodiment two is that it is to drive angular travel valve with embodiment one difference; Said oil cylinder piston bar actuating valve family of power and influence axle is; The upper end of connecting lever 20 and oil cylinder piston bar are hinged 21, and the lower end of connecting lever is connected with the valve shaft of angular travel valve, specifically are that the connecting lever lower end is axle sleeve and cooperates for keyway with valve shaft 23; Cylinder body suspended type hinged 22 is on support (omitting among the figure), and the line between two articulating points 22 at oil cylinder radially, and is and parallel and in the same plane with the hinging shaft 21 of connecting lever upper end.Other is identical with embodiment one.
When the piston rod right lateral, promote the swing to the right of connecting lever upper end, the valve shaft of angular travel valve drives angular travel valve and closes action to right rotation, and this moment, cylinder body was around its articulating point counter-clockwise swing; When the piston rod left lateral, promote the swing left of connecting lever upper end, the angular travel valve valve shaft drives angular travel valve and starts work to anticlockwise, and this moment, cylinder body was swung around its articulating point clockwise.Other working procedure is identical with embodiment one.
Claims (4)
1. the electrohydraulic system of the large-scale valve of solar energy small-power powered; It is characterized in that: the solar energy small-power power is drive stepping motor and oil pump successively; Hold and establish fuel tank, oil pump, one-way valve, threeway and liquid accumulator on the oil pipeline successively, the remaining mouth of threeway connects oil pipeline; The filler opening of 3-position 4-way solenoid directional control valve connects oil pipeline; The two ends of oil return pipeline are connected on the return opening of selector valve and the return opening of fuel tank respectively; Two oil outlets of selector valve are received two hydraulic fluid ports of oil cylinder respectively through pipeline separately, and the piston rod of oil cylinder drives the valve shaft or the valve rod of valve.
2. according to the electrohydraulic system of the large-scale valve of claim 1 described solar energy small-power powered, it is characterized in that: the valve rod that the piston rod of said oil cylinder drives valve is, the be rigidly connected valve rod of gate valve or stop valve of the piston rod of oil cylinder.
3. according to the electrohydraulic system of the large-scale valve of claim 1 described solar energy small-power powered; It is characterized in that: said oil cylinder piston bar actuating valve family of power and influence axle is the valve shaft that the oil cylinder piston bar drives angular travel valve; The upper end and the oil cylinder piston bar that specifically are connecting lever are hinged; The lower end of connecting lever is connected with the valve shaft of angular travel valve, and the connecting lever lower end is axle sleeve and is that keyway cooperates with valve shaft; The cylinder body suspended type is hinged on the support, and the line between two articulating points at oil cylinder radially, and is and parallel and in the same plane with the hinging shaft of connecting lever upper end.
4. according to the electrohydraulic system of the large-scale valve of each described solar energy small-power powered of claim 1-3; It is characterized in that: also be provided with pressure-display and monitoring device on the oil pipeline between threeway and the accumulator, comprise a pressure switch that is used to show the pressure gauge and a control step motor of accumulator internal pressure in pressure-display and the monitoring device; Between the return opening of fuel tank and accumulator, vent line is set, a switch valve is set at this vent line; On last oil pipeline, speed regulator is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101190146A CN102620041A (en) | 2012-04-23 | 2012-04-23 | Electrohydraulic system for driving large-size valve by using solar low-power power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101190146A CN102620041A (en) | 2012-04-23 | 2012-04-23 | Electrohydraulic system for driving large-size valve by using solar low-power power supply |
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| CN102620041A true CN102620041A (en) | 2012-08-01 |
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| CN2012101190146A Pending CN102620041A (en) | 2012-04-23 | 2012-04-23 | Electrohydraulic system for driving large-size valve by using solar low-power power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389931A (en) * | 2021-06-15 | 2021-09-14 | 邵曙 | Pneumatic valve actuator with heat preservation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946604Y (en) * | 2006-09-28 | 2007-09-12 | 天津市百乐福驱动阀门有限公司 | Pneumatic execution mechanism with hydraulic type hand-operated device |
| CN200951521Y (en) * | 2006-10-11 | 2007-09-26 | 太原市恒山机电设备有限公司 | Abrasion wheel pressing down constant pressure power composition control apparatus of steel blank repairing grinder |
| CN101865267A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Connecting rod type transmission mechanism |
| JP2010286047A (en) * | 2009-06-11 | 2010-12-24 | Aisin Aw Co Ltd | Solenoid valve device |
| CN202531970U (en) * | 2012-04-23 | 2012-11-14 | 沈阳东北电力调节技术有限公司 | Electro-hydraulic system for driving large valve in solar low-power power supply mode |
-
2012
- 2012-04-23 CN CN2012101190146A patent/CN102620041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946604Y (en) * | 2006-09-28 | 2007-09-12 | 天津市百乐福驱动阀门有限公司 | Pneumatic execution mechanism with hydraulic type hand-operated device |
| CN200951521Y (en) * | 2006-10-11 | 2007-09-26 | 太原市恒山机电设备有限公司 | Abrasion wheel pressing down constant pressure power composition control apparatus of steel blank repairing grinder |
| JP2010286047A (en) * | 2009-06-11 | 2010-12-24 | Aisin Aw Co Ltd | Solenoid valve device |
| CN101865267A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Connecting rod type transmission mechanism |
| CN202531970U (en) * | 2012-04-23 | 2012-11-14 | 沈阳东北电力调节技术有限公司 | Electro-hydraulic system for driving large valve in solar low-power power supply mode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389931A (en) * | 2021-06-15 | 2021-09-14 | 邵曙 | Pneumatic valve actuator with heat preservation device |
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Application publication date: 20120801 |