CN108869429A - A method of control one-directional fluid flow - Google Patents
A method of control one-directional fluid flow Download PDFInfo
- Publication number
- CN108869429A CN108869429A CN201810895557.4A CN201810895557A CN108869429A CN 108869429 A CN108869429 A CN 108869429A CN 201810895557 A CN201810895557 A CN 201810895557A CN 108869429 A CN108869429 A CN 108869429A
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- Prior art keywords
- oil
- liquid stream
- valve
- driving mechanism
- hole
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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
- 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
- F15B13/027—Check valves
Abstract
The present invention relates to a kind of methods for controlling one-directional fluid flow, are related to Fluid Transmission and Control technical field.The present invention can get rid of dependence when hydraulic control one-way valve is inversely opened to control liquid stream and its pressure condition, expand the function and application scope of check valve using the automatically controlled opposite direction flowing for realizing liquid stream in check valve instead of hydraulic control；And structure is simple, maintenance easy to install, can effectively reduce the quantity of pipeline and valve block in system, quality and volume, reduces hydraulic system construction, operation and maintenance cost.
Description
Technical field
The present invention relates to Fluid Transmission and Control technical fields, and in particular to a method of control one-directional fluid flow.
Background technique
Check valve is also known as check-valves or non-return valve, and being a kind of allows liquid stream to flow in one direction, and opposite direction flowing
When the direction valve that can be ended of liquid stream.In technical field of hydraulic pressure, check valve is divided into common check valve and hydraulic control one-way valve again, commonly
Check valve all cannot achieve the reverse flow of liquid stream in any condition, and hydraulic control one-way valve can be achieved on reverse flow,
Precondition is that must have the liquid stream served as control role and reach certain pressure requirement, and usual flow stream pressure at least should be main
The 30%~50% of oil circuit pressure.
Although hydraulic control one-way valve enriches the function of current check valve, so that liquid stream also can be realized reverse flow, it is preceding
The condition of mentioning is must to increase hydraulic control part to control liquid stream, and the pressure value of liquid stream must satisfy requirement, that is to say, that is had to
By additional line, or in valve block, the pressure oil in working connection is guided to the control port of check valve by additional oil duct, or not
Increase an individual oil sources directly using working connection pressure oil come the control port fuel feeding for individual event valve.But no matter which uses
Kind of method all unavoidably increases the quality and volume of pipeline quantity, valve block duct quantity and valve block in use process.And some
Import back pressure is very high or the very high hydraulic system of outlet back pressure in, the control liquid stream that is provided by system itself to hydraulic control one-way valve
Pressure may be unable to satisfy working condition requirement, cause hydraulic control one-way valve not open inversely, additionally can only individually increase a set of liquid
Pressure power source solves, and the construction for the system that greatly increases, operation and maintenance cost limit hydraulic control list by this to a certain extent
To the application range of valve.Therefore, it develops a kind of without controlling the novel of the i.e. controllable realization working connection oil liquid reverse flow of liquid stream
Check valve fetters for reducing or getting rid of check valve hydraulic control condition in hydraulic system, reduces hydraulic system operation and maintenance cost,
The function and application scope for expanding check valve is all of great significance.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved by the present invention is to：How to realize that liquid stream is i.e. controllable to realize that working connection oil liquid is inverse without controlling
To flowing, dependence when hydraulic control one-way valve is inversely opened to control liquid stream and its pressure condition is got rid of.
(2) technical solution
One-directional fluid flow is controlled using one-way control valve in order to solve the above-mentioned technical problems, the present invention provides a kind of
Method, including cover board 1, the first sealing ring, valve body 3, valve seat 4, screw 5, driving mechanism, compressed spring 7, main valve plug 8, unloading valve
Core 9, guide rod 10, the second sealing ring, push rod 12 and armature 13；
Wherein, cover board 1 is mounted on an end face of valve body 3 and is sealed by the first sealing ring, have on valve body 3 oil suction chamber b,
Oil outlet chamber e, oil inlet a and oil outlet f, wherein oil suction chamber b is connected to oil inlet a, and oil outlet chamber e is connected to oil outlet f, oil suction chamber
Pass through the axial oil-through-hole g of the even cloth of several circumference and a pilot hole h connection between b and oil outlet chamber e；The inside of oil outlet chamber e fills
There are valve seat 4 and main valve plug 8, wherein valve seat 4 is fixed on valve body 3, and the top of main valve plug 8 is radially provided with several radial oil-through-holes
C, and through-hole d is also provided with along central axes, the inside installation compressed spring 7 and off-load spool 9 of main valve plug 8；The one of compressed spring 7
Side pressure is on the end face of cover board 1, and the other end is pressed in one end of off-load spool 9, and the other end of off-load spool 9 is then equipped with guiding
Bar 10, guide rod 10 protrude into the through-hole d of main valve plug 8；One end of push rod 12 is protruded into from the end face of valve body 3 and sequentially passes through valve body
3 oil suction chamber b and pilot hole h, and between valve body 3 by the second sealing ring 11 carry out radial seal, push rod 12 it is another
End is connected through a screw thread fastening with the armature 13 inside driving mechanism, and driving mechanism is fastened on the other end of valve body 3 by screw 5
On face, the driving mechanism is moved in a straight line for driving push rod 12；
The valve seat 4, compressed spring 7, main valve plug 8, off-load spool 9, guide rod 10, push rod 12 and armature 13 are same
On central axes；For the pilot hole h and valve seat 4 of valve body 3 on same central axes, oil suction chamber b passes through axial direction oil-through-hole g and valve seat 4
Inner cavity connection；
It is conical structure at the top of main valve plug 8 in the electric control one-way valve, valve seat 4 is columnar structured, 8 top of main valve plug
Linear sealing is formed with valve seat 4；The inner face that off-load spool 9 installs 8 top of one end and main valve plug of guide rod 10 forms linear sealing；
It the described method comprises the following steps：
Flow into liquid stream from oil inlet a, liquid stream enters the inner cavity of valve seat 4, nothing followed by oil suction chamber b, axial direction oil-through-hole g
Whether work by driving mechanism, liquid stream will all overcome the active force of compressed spring 7 and open main valve plug 8, and liquid stream passes through main valve
Core 8 and oil outlet chamber e are flowed out from oil outlet f, realize forward flow；
It flows into liquid stream reversely to flow into from oil outlet f, if driving mechanism does not work, main valve plug 8 is in flow stream pressure and pressure
It is closed under the active force of contracting spring 7, liquid stream reverse flow is ended；If driving mechanism works, driving mechanism will drive armature 13
Overhanging with push rod 12, push rod 12 contacts and guide rod 10 is pushed to bounce back, to first open off-load spool 9, liquid stream is by fuel-displaced
Chamber e, radial direction oil-through-hole c enter oil suction chamber b to make liquid stream pressure release, push rod 12 continue it is overhanging main valve plug 8 is opened again, liquid stream from
Oil inlet a, oil suction chamber b, axial direction oil-through-hole g enter oil outlet chamber e and oil outlet f, to realize the reverse flow of liquid stream.
Preferably, first sealing ring is O-ring seals.
Preferably, second sealing ring is O-ring seals.
Preferably, the driving mechanism is voice coil motor 6.
Preferably, the driving mechanism is electromagnet.
Preferably, the driving mechanism is linear motor.
Preferably, it is conical structure that the off-load spool 9, which installs one end of guide rod 10,.
Preferably, it is spherical structure that the off-load spool 9, which installs one end of guide rod 10,.
Preferably, the cover board 1 is mounted on valve body 3 by screw.
(3) beneficial effect
It is inverse to get rid of hydraulic control one-way valve using the automatically controlled opposite direction flowing for realizing liquid stream in check valve instead of hydraulic control by the present invention
To dependence when opening to control liquid stream and its pressure condition, the function and application scope of check valve is expanded；And the automatically controlled list
Maintenance simple to valve arrangement, easy to install can effectively reduce the quantity of pipeline and valve block in system, quality and volume, reduce liquid
Press system building, operation and maintenance cost.
Detailed description of the invention
Fig. 1 is the cross-sectional view of electric control one-way valve of the invention.
Wherein, 1- cover board, the first O-ring of 2-, 3- valve body, 4- valve seat, 5- screw, 6- voice coil motor, 7- compressed spring, 8-
Main valve plug, 9- off-load spool, 10- guide rod, the second O-ring of 11-, 12- push rod, 13- armature；A- oil inlet, b- oil suction chamber, c-
Radial oil-through-hole, d- through-hole, e- oil outlet chamber, f- oil outlet, g- axial direction oil-through-hole, h- pilot hole.
Specific embodiment
To keep the purpose of the present invention, content and advantage clearer, with reference to the accompanying drawings and examples, to of the invention
Specific embodiment is described in further detail.
As shown in Figure 1, a kind of method of the control one-directional fluid flow provided by the invention realized based on one-way control valve,
The one-way control valve includes cover board 1, the first O-ring 2, valve body 3, valve seat 4, screw 5, voice coil motor 6, compressed spring 7, main valve plug
8, off-load spool 9, guide rod 10, the second O-ring 11, push rod 12 and armature 13,
Wherein, cover board 1 is mounted on an end face of valve body 3 and is sealed by the first O-ring 2, have on valve body 3 oil suction chamber b,
Oil outlet chamber e, oil inlet a and oil outlet f, wherein oil suction chamber b is connected to oil inlet a, and oil outlet chamber e is connected to oil outlet f, oil suction chamber
Pass through the axial oil-through-hole g of the even cloth of several circumference and a pilot hole h connection between b and oil outlet chamber e；The inside of oil outlet chamber e fills
There are valve seat 4 and main valve plug 8, wherein valve seat 4 is fixed on valve body 3, and the top of main valve plug 8 is radially provided with several radial oil-through-holes
C, and through-hole d is also provided with along central axes, the inside installation compressed spring 7 and off-load spool 9 of main valve plug 8；The one of compressed spring 7
Side pressure is on the end face of cover board 1, and the other end is pressed in one end of off-load spool 9, and the other end of off-load spool 9 is then equipped with guiding
Bar 10, guide rod 10 protrude into the through-hole d of main valve plug 8；One end of push rod 12 is protruded into from the end face of valve body 3 and sequentially passes through valve body
3 oil suction chamber b and pilot hole h, and pass through 11 radial seal of the second O-ring, the other end and sound of push rod 12 between valve body 3
Armature 13 inside circle motor 6 is connected through a screw thread fastening, and voice coil motor 6 is fastened on the other end of valve body 3 by screw 5
On.
In the electric control one-way valve, valve seat 4, compressed spring 7, main valve plug 8, off-load spool 9, guide rod 10, push rod 12 and rank
Iron 13 is on same central axes；For the pilot hole h and valve seat 4 of valve body 3 on same central axes, oil suction chamber b passes through axial logical oil
Hole g is connected to the inner cavity of valve seat 4.
It is conical structure at the top of main valve plug 8 in the electric control one-way valve, valve seat 4 is columnar structured, 8 top of main valve plug
Linear sealing is formed with valve seat 4；One end that off-load spool 9 installs guide rod 10 is conical or spherical structure, the end and main valve plug 8
The inner face at top forms linear sealing.
In the electric control one-way valve, cover board 1 is mounted on valve body 3 by screw or other fastening means；Driving push rod 12 is done
The component of linear motion is not limited to voice coil motor 6, can also be electromagnet or other types of linear motor.
The method of the control one-directional fluid flow realized based on the one-way control valve of the invention is included the following steps：
When liquid stream is flowed into from oil inlet a, liquid stream enters the inner cavity of valve seat 4 followed by oil suction chamber b, axial direction oil-through-hole g,
No matter whether voice coil motor 6 works, and liquid stream will all overcome the active force of compressed spring 7 and open main valve plug 8, and liquid stream passes through master
Spool 8 and oil outlet chamber e are flowed out from oil outlet f, realize forward flow.
When liquid stream, which reversely flows into, to be flowed into from oil outlet f, if voice coil motor 6 does not work, main valve plug 8 in flow stream pressure and
It is closed under the active force of compressed spring 7, liquid stream reverse flow is ended；If voice coil motor 6 works, voice coil motor 6 holds in the mouth driving
Iron 13 and push rod 12 are overhanging, and push rod 12 contacts and guide rod 10 is pushed to bounce back, to first open off-load spool 9, liquid stream is passed through
Oil outlet chamber e, radial direction oil-through-hole c enter oil suction chamber b to make liquid stream pressure release, push rod 12 continue it is overhanging main valve plug 8 is opened again, liquid
Stream enters oil outlet chamber e and oil outlet f from oil inlet a, oil suction chamber b, axial direction oil-through-hole g, to realize the reverse flow of liquid stream.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of method using one-way control valve control one-directional fluid flow, which is characterized in that
The electric control one-way valve includes cover board (1), the first sealing ring, valve body (3), valve seat (4), screw (5), driving mechanism, pressure
Contracting spring (7), main valve plug (8), off-load spool (9), guide rod (10), the second sealing ring, push rod (12) and armature (13)；
Wherein, cover board (1) is mounted on an end face of valve body (3) and is sealed by the first sealing ring, and valve body has oil suction chamber on (3)
(b), oil outlet chamber (e), oil inlet (a) and oil outlet (f), wherein oil suction chamber (b) is connected to oil inlet (a), oil outlet chamber (e) with go out
Hydraulic fluid port (f) connection passes through the axial oil-through-hole (g) of the even cloth of several circumference and a guiding between oil suction chamber (b) and oil outlet chamber (e)
Hole (h) connection；The inside of oil outlet chamber (e) is equipped with valve seat (4) and main valve plug (8), and wherein valve seat (4) is fixed on valve body (3), main
The top of spool (8) is radially provided with several radial oil-through-holes (c), and is also provided with through-hole (d), main valve plug (8) along central axes
Inside installation compressed spring (7) and off-load spool (9)；One end of compressed spring (7) is pressed on the end face of cover board (1), another
Side pressure is in one end of off-load spool (9), and the other end of off-load spool (9) is then equipped with guide rod (10), and guide rod (10) is stretched
In the through-hole (d) for entering main valve plug (8)；One end of push rod (12) protruded into from the end face of valve body (3) and sequentially pass through valve body (3) into
Oil pocket (b) and pilot hole (h), and radial seal is carried out by the second sealing ring (11) between valve body (3), push rod (12)
Armature (13) inside the other end and driving mechanism is connected through a screw thread fastening, and driving mechanism is fastened on valve body by screw (5)
(3) on other end, the driving mechanism is moved in a straight line for driving push rod (12)；
The valve seat (4), compressed spring (7), main valve plug (8), off-load spool (9), guide rod (10), push rod (12) and armature
(13) on same central axes；On same central axes, oil suction chamber (b) passes through for the pilot hole (h) of valve body (3) and valve seat (4)
Axial oil-through-hole (g) is connected to the inner cavity of valve seat (4)；
It is conical structure at the top of main valve plug (8) in the electric control one-way valve, valve seat (4) is columnar structured, main valve plug (8) top
Portion and valve seat (4) form linear sealing；One end and the inner face at the top of main valve plug (8) that off-load spool (9) installs guide rod (10)
Form linear sealing；
It the described method comprises the following steps：
Flow into liquid stream from oil inlet (a), liquid stream enters the interior of valve seat (4) followed by oil suction chamber (b), axial oil-through-hole (g)
Chamber, no matter whether driving mechanism works, and liquid stream will all overcome the active force of compressed spring (7) and open main valve plug (8), liquid stream
It is flowed out by main valve plug (8) and oil outlet chamber (e) from oil outlet (f), realizes forward flow；
It flows into liquid stream reversely to flow into from oil outlet (f), if driving mechanism does not work, main valve plug (8) is in flow stream pressure and pressure
It is closed under the active force of contracting spring (7), liquid stream reverse flow is ended；If driving mechanism works, driving mechanism will drive armature
(13) and push rod (12) is overhanging, and push rod (12) contacts and guide rod (10) is pushed to bounce back, thus first open off-load spool (9),
Liquid stream enters oil suction chamber (b) by oil outlet chamber (e), radial oil-through-hole (c) to make liquid stream pressure release, and push rod (12) continuation is overhanging again
Main valve plug (8) is opened, liquid stream enters oil outlet chamber (e) and oil outlet from oil inlet (a), oil suction chamber (b), axial oil-through-hole (g)
(f), to realize the reverse flow of liquid stream.
2. the method as described in claim 1, which is characterized in that first sealing ring is O-ring seals.
3. the method as described in claim 1, which is characterized in that second sealing ring is O-ring seals.
4. the method as described in claim 1, which is characterized in that the driving mechanism is voice coil motor (6).
5. the method as described in claim 1, which is characterized in that the driving mechanism is electromagnet.
6. the method as described in claim 1, which is characterized in that the driving mechanism is linear motor.
7. the method as described in claim 1, which is characterized in that one end of off-load spool (9) installation guide rod (10) is
Conical structure.
8. the method as described in claim 1, which is characterized in that one end of off-load spool (9) installation guide rod (10) is
Spherical structure.
9. such as method described in any item of the claim 1 to 8, which is characterized in that the cover board (1) is mounted on valve by screw
On body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895557.4A CN108869429A (en) | 2018-08-08 | 2018-08-08 | A method of control one-directional fluid flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895557.4A CN108869429A (en) | 2018-08-08 | 2018-08-08 | A method of control one-directional fluid flow |
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| Publication Number | Publication Date |
|---|---|
| CN108869429A true CN108869429A (en) | 2018-11-23 |
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ID=64317608
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810895557.4A Pending CN108869429A (en) | 2018-08-08 | 2018-08-08 | A method of control one-directional fluid flow |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973456A (en) * | 2019-04-16 | 2019-07-05 | 武汉科技大学 | A kind of automatically controlled high pressure check valve of combined type |
| CN110492638A (en) * | 2019-08-28 | 2019-11-22 | 河北科技大学 | Multi-freedom electric motor |
| CN110645218A (en) * | 2019-10-10 | 2020-01-03 | 北京特种机械研究所 | Method for realizing proportional throttle control and direction control of large-flow fluid medium |
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| CN85201815U (en) * | 1985-04-29 | 1986-03-05 | 浙江瑞安永久机电研究所 | Unidirectional solenoid valve |
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| CN87212352U (en) * | 1987-10-07 | 1988-04-20 | 陈延全 | Electric-control one-way valve |
| CN201568617U (en) * | 2009-12-01 | 2010-09-01 | 朱宝京 | High-flow electric control check valve |
| CN201568390U (en) * | 2009-12-01 | 2010-09-01 | 朱宝京 | Electric-control stop valve |
| CN104061346A (en) * | 2014-06-13 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Duplex type hydraulic control one-way valve |
| CN204942633U (en) * | 2015-08-06 | 2016-01-06 | 中国石油天然气股份有限公司 | A kind of safety check |
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2018
- 2018-08-08 CN CN201810895557.4A patent/CN108869429A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201815U (en) * | 1985-04-29 | 1986-03-05 | 浙江瑞安永久机电研究所 | Unidirectional solenoid valve |
| CN87102355A (en) * | 1987-03-30 | 1987-08-26 | 机械工业部西安重型机械研究所 | High water base cone valve type electro-hydraulic reversal valve |
| CN87212352U (en) * | 1987-10-07 | 1988-04-20 | 陈延全 | Electric-control one-way valve |
| CN201568617U (en) * | 2009-12-01 | 2010-09-01 | 朱宝京 | High-flow electric control check valve |
| CN201568390U (en) * | 2009-12-01 | 2010-09-01 | 朱宝京 | Electric-control stop valve |
| CN104061346A (en) * | 2014-06-13 | 2014-09-24 | 苏州华徕光电仪器有限公司 | Duplex type hydraulic control one-way valve |
| CN204942633U (en) * | 2015-08-06 | 2016-01-06 | 中国石油天然气股份有限公司 | A kind of safety check |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973456A (en) * | 2019-04-16 | 2019-07-05 | 武汉科技大学 | A kind of automatically controlled high pressure check valve of combined type |
| CN110492638A (en) * | 2019-08-28 | 2019-11-22 | 河北科技大学 | Multi-freedom electric motor |
| CN110645218A (en) * | 2019-10-10 | 2020-01-03 | 北京特种机械研究所 | Method for realizing proportional throttle control and direction control of large-flow fluid medium |
| CN110645218B (en) * | 2019-10-10 | 2021-06-01 | 北京特种机械研究所 | Method for realizing proportional throttle control and direction control of large-flow fluid medium |
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Application publication date: 20181123 |