CN103775659A - Electromagnetic valve control method capable of ensuring working state before electrifying after power failure and electromagnetic valve - Google Patents
Electromagnetic valve control method capable of ensuring working state before electrifying after power failure and electromagnetic valve Download PDFInfo
- Publication number
- CN103775659A CN103775659A CN201310541963.8A CN201310541963A CN103775659A CN 103775659 A CN103775659 A CN 103775659A CN 201310541963 A CN201310541963 A CN 201310541963A CN 103775659 A CN103775659 A CN 103775659A
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- spool
- acting
- import
- bypass duct
- electromagnetic valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
- F16K31/0631—Lift valves with movable valve member positioned between seats with ball shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
Abstract
The invention relates to an electromagnetic valve control method capable of ensuring a working state before electrifying after a power failure and an electromagnetic valve. The method includes the following steps that firstly, when the electromagnetic valve is not electrified, a valve element is in a static state and a fluid flows to an inlet; secondly, the electromagnetic valve is electrified, the valve element moves, the inlet and an outlet are conducted and the fluid flows to the outlet from the inlet; thirdly, the fourth action force is exerted on the valve element, the fourth action force exerted on the valve element and the pressure exerted on the fluid of the valve element are larger than the spring force exerted on a valve element reset spring; when power of the electromagnetic valve is cut off, the valve element does not move, the inlet and the outlet are still conducted and the fluid flows to the outlet from the inlet. According to the electromagnetic valve control method capable of ensuring the working state before electrifying after the power failure and the electromagnetic valve, the phenomenon that the electromagnetic valve gets out of the previous working state due to misoperation or the power failure of a system for some reason after the electromagnetic valve is electrified can be avoided for sure.
Description
Technical field
The invention belongs to electromechanical transformation apparatus technical field, relate to a kind of electromagnetic valve control method and solenoid valve that can guarantee the working state before energising after power-off, relate in particular to after one has power-off and keep previous state, and the solenoid valve again resetting under specific instruction.
Background technique
Current domestic solenoid valve great majority are normal open electricity or normal off electric switch valve, and the solenoid valve of this type time only has two kinds of working staties in work, the one, and solenoid valve energising, valve open or close; The 2nd, solenoid valve power-off, valve closing or open, if the power-off for some reason suddenly in the time of energising working state of this type solenoid valve, working state when solenoid valve can not keep former energising.
Summary of the invention
In order to solve the technical problem existing in background technique, the invention provides one and can guarantee after "on" position, not can due to misoperation or system for some reason power-off cause solenoid valve to leave electromagnetic valve control method and the solenoid valve that after power-off, can guarantee the working state before energising of last working state.
Technical solution of the present invention is: the invention provides a kind of electromagnetic valve control method that can guarantee the working state before energising after power-off, its special way is: the described electromagnetic valve control method that can guarantee the working state before energising after power-off comprises the following steps:
1) when solenoid valve is not switched on, the hydrodynamic pressure acting on spool is less than or equal to the spring force acting on valve core reseting spring, and spool remains static, and fluid flow to import;
2) solenoid valve is switched on, the electromagnetic force acting on spool is greater than with the hydrodynamic pressure acting on spool the spring force that acts on valve core reseting spring, and spool moves, conducting import and outlet, and fluid flows to outlet from import;
3) on spool, increase by the 4th active force, the 4th active force that makes to act on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, in the time of solenoid valve power-off, the electromagnetic force acting on spool disappears, because the 4th active force acting on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool does not move, import and still conducting of outlet, and fluid flows to outlet from import.
Said method also comprises after step 3):
4) dwindle gradually the 4th active force, make to act on the 4th active force on spool and be equal to or less than gradually with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool moves, and import and outlet can not conductings, and fluid flow to import.
Above-mentioned steps 3) in increase the specific implementation of the 4th active force and be: bypass duct is set on spool; Pressure-acting in described bypass duct is on spool.
The direction of pressure-acting in above-mentioned bypass duct on spool is identical or contrary with the hydrodynamic pressure direction acting on spool.
The direction of pressure-acting in above-mentioned bypass duct on spool is when to act on hydrodynamic pressure direction on spool be identical, and the specific implementation of described step 4) is:
Reduce gradually to increase the pressure in bypass duct, the 4th active force being formed by bypass duct that makes to act on spool is equal to or less than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring gradually, spool moves, import can not conducting with outlet, and fluid flow to import.
The direction of pressure-acting in above-mentioned bypass duct on spool is when to act on hydrodynamic pressure direction on spool be contrary, and the specific implementation of described step 4) is:
Increase gradually the pressure in bypass duct, the 4th active force being formed by bypass duct that makes to act on spool is equal to or less than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring gradually, spool moves, and import can not conducting with outlet, and fluid flow to import.
Above-mentioned steps 4) in while increasing bypass duct pressure, in described bypass duct, be provided with the push rod for promoting spool; The pressure of the bypass duct of described increase promotes spool by push rod, and import can not conducting with outlet, and fluid flow to import.
The direction of pressure-acting in above-mentioned bypass duct on spool is when to act on hydrodynamic pressure direction on spool be contrary, and the specific implementation of described step 4) is:
Reduce gradually the pressure of fluid, make to act on the 4th active force on spool and be equal to or less than gradually with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool moves, and import and outlet can not conductings, and fluid flow to import.
A kind of based on the solenoid valve that can guarantee the electromagnetic valve control method of the working state before energising after power-off as above, comprise fluid inlet, fluid output, spool and be arranged on the Returnning spring for valve core reset on spool, described fluid inlet connects by spool and fluid output; Its special way is: described solenoid valve also comprises bypass duct, and the pressure in described bypass duct directly acts on spool.
Above-mentioned solenoid valve also comprise be arranged in bypass duct for promoting the spool push rod of valve core reset.
Advantage of the present invention is:
The present invention increases bypass to it on existing spool basis, and produce and act on the 4th active force of spool (first three active force is respectively hydrodynamic pressure by this bypass, valve core reseting spring power and electromagnetic force), on spool, increase by the 4th active force, the 4th active force that makes to act on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, in the time of solenoid valve power-off, the electromagnetic force acting on spool disappears, because the 4th active force acting on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool does not move, import and still conducting of outlet, fluid flows to outlet from import.The switch valve that the present invention is different from the past, in the time that solenoid valve is switched on, valve closing or open, in the time of solenoid valve power-off, valve is still closed or is opened, and keeps lock state, and only after given specific instruction, the solenoid valve state that just goes out of lock.The present invention can guarantee after "on" position, not can due to misoperation or system for some reason power-off cause solenoid valve to leave last working state, to reduce system reliability requirement.
Accompanying drawing explanation
Fig. 1 is the first embodiment's of solenoid valve provided by the present invention structural representation;
Fig. 2 is the second embodiment's of solenoid valve provided by the present invention structural representation;
Wherein:
1-import; 2-outlet; 3-spool; 4-push rod; 5-the second import; 6-triple feed inlet.
Embodiment
The invention provides a kind of electromagnetic valve control method that can guarantee the working state before energising after power-off, the method comprises the following steps:
1) when solenoid valve is not switched on, the hydrodynamic pressure acting on spool is less than or equal to the spring force acting on valve core reseting spring, and spool remains static, and fluid flow to import;
2) solenoid valve is switched on, the electromagnetic force acting on spool is greater than with the hydrodynamic pressure acting on spool the spring force that acts on valve core reseting spring, and spool moves, conducting import and outlet, and fluid flows to outlet from import;
3) (first three active force is respectively hydrodynamic pressure on spool, to increase by the 4th active force, valve core reseting spring power and electromagnetic force), the 4th active force that makes to act on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, in the time of solenoid valve power-off, the electromagnetic force acting on spool disappears, because the 4th active force acting on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool does not move, import and still conducting of outlet, fluid flows to outlet from import.
4) dwindle gradually the 4th active force, make to act on the 4th active force on spool and be equal to or less than gradually with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool moves, and import and outlet can not conductings, and fluid flow to import.
Wherein, the specific implementation that increases by the 4th active force in step 3) is: bypass duct is set on spool; Pressure-acting in bypass duct is on spool.
The direction of pressure-acting in bypass duct on spool is identical or contrary with the hydrodynamic pressure direction acting on spool.
When the direction of the pressure-acting in bypass duct on spool is when to act on hydrodynamic pressure direction on spool be identical, the specific implementation of step 4) is:
Reduce gradually to increase the pressure in bypass duct, the 4th active force forming due to bypass duct that makes to act on spool is equal to or less than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring gradually, spool moves, import can not conducting with outlet, and fluid flow to import.
When the direction of the pressure-acting in bypass duct on spool is when to act on hydrodynamic pressure direction on spool be contrary, the specific implementation of step 4) is:
Increase gradually the pressure in bypass duct, the 4th active force forming due to bypass duct that makes to act on spool is equal to or less than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring gradually, spool moves, import can not conducting with outlet, and fluid flow to import.
While increasing bypass duct pressure in step 4), in bypass duct, be provided with the push rod for promoting spool; The pressure of bypass duct increasing promotes spool by push rod, and import and outlet can not conductings, and fluid flow to import.
When the direction of the pressure-acting in bypass duct on spool is when to act on hydrodynamic pressure direction on spool be contrary, the specific implementation of step 4) is:
Reduce gradually the pressure of fluid, make to act on the 4th active force on spool and be equal to or less than gradually with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool moves, and import and outlet can not conductings, and fluid flow to import.
The present invention is in providing the above-mentioned electromagnetic valve control method that can guarantee the working state before energising after power-off, also provide a kind of based on the as above solenoid valve of principle, this solenoid valve comprises fluid inlet, fluid output, spool and is arranged on the Returnning spring for valve core reset on spool, and fluid inlet connects by spool and fluid output; In addition, solenoid valve provided by the present invention also comprises bypass duct, and the pressure in bypass duct directly acts on spool.
Solenoid valve also comprise be arranged in bypass duct for promoting the spool push rod of valve core reset.
Below take act on when pressure (the 4th active force) in bypass duct direction on spool with act on hydrodynamic pressure direction on spool be contrary situation as example, describe the present invention in conjunction with the embodiments:
Referring to Fig. 1, be depicted as not "on" position of electromagnet, fluid enters from import 1, and because ball (spool 3) left side is only leaned on, fluid can not be from exporting 2 outflows; In the time that solenoid valve is switched on, electromagnetic force overcomes spring force, and push rod 4 is moved right, and end bulb (spool 3) right side is only leaned on, and now fluid can flow to outlet 2 from import 1.If solenoid valve power-off, the hydrodynamic pressure that now ball (spool 3) is subject to is greater than spring reset power, and ball (spool 3) still only leans on position in the right side, so can guarantee maintaining the original state after power-off for some reason.If need solenoid valve to leave lock state, can there is various ways, first kind of way (as Fig. 1), control the second import 5 and triple feed inlet 6 place's pressure (the second import 5 forms separately or jointly forms bypass duct by the second import 5 and triple feed inlet 6), promote push rod, finally make ball (spool 3) get back to initial position; Second way (see figure 2), does not need push rod, controls the second import 5 pressure, promotes ball (spool 3) and leaves locked position; The third mode (see figure 2), the pressure of reduction import 1, the hydrodynamic pressure being subject to when ball (spool 3) is less than spring reset power, and ball (spool 3) leaves locked position.
The reset mode of solenoid valve is not limited to and above-mentioned 3 kinds.
The content according to the present invention, while only leaning on ball (spool 3) the right, the relevant parameter of setting solenoid valve is as follows: the elastic coefficient: 10N/mm; Amount of spring compression when system quiescence: 5mm; The decrement of spring: 10mm when ball (spool 3) right side is only leaned on; Import oil pressure: 6MPa; The second import oil pressure: 0MPa before unlocking; Import 2 oil pressure: 6MPa while unlocking; Circularhole diameter: 5mm; Ball (spool 3) diameter: 10mm; Suction: 300N when solenoid valve energising.
Claims (10)
1. the electromagnetic valve control method that can guarantee the working state before energising after power-off, is characterized in that: the described electromagnetic valve control method that can guarantee the working state before energising after power-off comprises the following steps:
1) when solenoid valve is not switched on, the hydrodynamic pressure acting on spool is less than or equal to the spring force acting on valve core reseting spring, and spool remains static, and fluid flow to import;
2) solenoid valve is switched on, the electromagnetic force acting on spool is greater than with the hydrodynamic pressure acting on spool the spring force that acts on valve core reseting spring, and spool moves, conducting import and outlet, and fluid flows to outlet from import;
3) on spool, increase by the 4th active force, the 4th active force that makes to act on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, in the time of solenoid valve power-off, the electromagnetic force acting on spool disappears, because the 4th active force acting on spool is greater than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool does not move, import and still conducting of outlet, and fluid flows to outlet from import.
2. the electromagnetic valve control method that can guarantee the working state before energising after power-off according to claim 1, is characterized in that: described method also comprises after step 3):
Dwindle gradually the 4th active force, make to act on the 4th active force on spool and be equal to or less than gradually with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool moves, and import and outlet can not conductings, and fluid flow to import.
3. the electromagnetic valve control method that can guarantee the working state before energising after power-off according to claim 1 and 2, is characterized in that: the specific implementation that increases by the 4th active force in described step 3) is: bypass duct is set on spool; Pressure-acting in described bypass duct is on spool.
4. the electromagnetic valve control method that can guarantee the working state before energising after power-off according to claim 3, is characterized in that: the direction of the pressure-acting in described bypass duct on spool is identical or contrary with the hydrodynamic pressure direction acting on spool.
5. the electromagnetic valve control method that can guarantee the working state before energising after power-off according to claim 4, it is characterized in that: the direction of the pressure-acting in described bypass duct on spool is when to act on hydrodynamic pressure direction on spool be identical, and the specific implementation of described step 4) is:
Reduce gradually to increase the pressure in bypass duct, the 4th active force forming due to bypass duct that makes to act on spool is equal to or less than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring gradually, spool moves, import can not conducting with outlet, and fluid flow to import.
6. the electromagnetic valve control method that can guarantee the working state before energising after power-off according to claim 4, it is characterized in that: the direction of the pressure-acting in described bypass duct on spool is when to act on hydrodynamic pressure direction on spool be contrary, and the specific implementation of described step 4) is:
Increase gradually the pressure in bypass duct, the 4th active force forming due to bypass duct that makes to act on spool is equal to or less than with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring gradually, spool moves, import can not conducting with outlet, and fluid flow to import.
7. the electromagnetic valve control method that can guarantee the working state before energising after power-off according to claim 6, is characterized in that: while increasing bypass duct pressure in described step 4), be provided with the push rod for promoting spool in described bypass duct; The pressure of the bypass duct of described increase promotes spool by push rod, and import can not conducting with outlet, and fluid flow to import.
8. the electromagnetic valve control method that can guarantee the working state before energising after power-off according to claim 4, it is characterized in that: the direction of the pressure-acting in described bypass duct on spool is when to act on hydrodynamic pressure direction on spool be contrary, and the specific implementation of described step 4) is:
Reduce gradually the pressure of fluid, make to act on the 4th active force on spool and be equal to or less than gradually with the hydrodynamic pressure acting on spool the spring force acting on valve core reseting spring, spool moves, and import and outlet can not conductings, and fluid flow to import.
9. the solenoid valve that can guarantee the electromagnetic valve control method of the working state before energising after power-off based on as described in claim as arbitrary in claim 1-8, comprise fluid inlet, fluid output, spool and be arranged on the Returnning spring for valve core reset on spool, described fluid inlet connects by spool and fluid output; It is characterized in that: described solenoid valve also comprises bypass duct, the pressure in described bypass duct directly acts on spool.
10. solenoid valve according to claim 9, is characterized in that: described solenoid valve also comprise be arranged in bypass duct for promoting the spool push rod of valve core reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541963.8A CN103775659B (en) | 2013-11-05 | 2013-11-05 | Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541963.8A CN103775659B (en) | 2013-11-05 | 2013-11-05 | Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power |
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| Publication Number | Publication Date |
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| CN103775659A true CN103775659A (en) | 2014-05-07 |
| CN103775659B CN103775659B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310541963.8A Active CN103775659B (en) | 2013-11-05 | 2013-11-05 | Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254226A (en) * | 2018-03-23 | 2018-07-06 | 亚洲硅业（青海）有限公司 | A kind of pollution-free closed sampler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184819Y (en) * | 1994-03-28 | 1994-12-07 | 郑孚 | Self holding electramagnetic valve |
| US5975654A (en) * | 1994-08-06 | 1999-11-02 | Itt Manufacturing Enterprises Inc. | Valve unit, in particular for hydraulic brake systems with antilock and/or wheel-slip control |
| DE10239128A1 (en) * | 2002-02-12 | 2003-08-28 | Continental Teves Ag & Co Ohg | Electromagnetic valve especially for motor vehicle brakes having anti skid control has bypass channel to reduce hydraulic resistance |
| CN101201111A (en) * | 2007-11-20 | 2008-06-18 | 张让莘 | Numerical control electromagnetic valve |
| CN203009975U (en) * | 2013-01-07 | 2013-06-19 | 中国农业科学院农田灌溉研究所 | Magnetic valve |
-
2013
- 2013-11-05 CN CN201310541963.8A patent/CN103775659B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184819Y (en) * | 1994-03-28 | 1994-12-07 | 郑孚 | Self holding electramagnetic valve |
| US5975654A (en) * | 1994-08-06 | 1999-11-02 | Itt Manufacturing Enterprises Inc. | Valve unit, in particular for hydraulic brake systems with antilock and/or wheel-slip control |
| DE10239128A1 (en) * | 2002-02-12 | 2003-08-28 | Continental Teves Ag & Co Ohg | Electromagnetic valve especially for motor vehicle brakes having anti skid control has bypass channel to reduce hydraulic resistance |
| CN101201111A (en) * | 2007-11-20 | 2008-06-18 | 张让莘 | Numerical control electromagnetic valve |
| CN203009975U (en) * | 2013-01-07 | 2013-06-19 | 中国农业科学院农田灌溉研究所 | Magnetic valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254226A (en) * | 2018-03-23 | 2018-07-06 | 亚洲硅业（青海）有限公司 | A kind of pollution-free closed sampler |
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| Publication number | Publication date |
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| CN103775659B (en) | 2016-08-31 |
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