CN107035904A - The automatic valve system of the double acting pneumatic actuator driving of duplicate protection can be provided - Google Patents
The automatic valve system of the double acting pneumatic actuator driving of duplicate protection can be provided Download PDFInfo
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- CN107035904A CN107035904A CN201710458458.5A CN201710458458A CN107035904A CN 107035904 A CN107035904 A CN 107035904A CN 201710458458 A CN201710458458 A CN 201710458458A CN 107035904 A CN107035904 A CN 107035904A
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- outlet
- way valves
- valve
- pneumatic actuator
- drain
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/082—Servomotor systems incorporating electrically operated control means with different modes
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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
- F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
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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
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/128—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like servo actuated
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Multiple-Way Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention belongs to automatic valve technical field; a kind of automatic valve system for the double acting pneumatic actuator driving that duplicate protection is provided; main valve is arranged on main pipeline, and main pipeline is divided into upstream line and downstream line, and double acting pneumatic actuator is connected with main valve；The first two five-way valves include the first import, first outlet, second outlet, first drain and the second drain, first import is connected with power gas source, the second two five-way valves include the second import, 3rd outlet, 4th outlet, 3rd drain and the 4th drain, second import is connected with first outlet, 3rd outlet is connected with the first cavity of double acting pneumatic actuator, 4th outlet is connected with the second cavity of double acting pneumatic actuator, the first two five-way valves and the second two five-way valves one of them be two five-way electromagnetic valves, another is two position-5 way valves, the pressure cavity of two position-5 way valves is connected by communicating pipe with upstream line.
Description
Technical field
Set exceeding in pressure for duplicate protection the invention belongs to automatic valve technical field, more particularly to a kind of can provide
The valve system driven by double acting pneumatic actuator for automatically turning on or closing during definite value.
Background technology
In order to protect pressure pipeline, pressure vessel and the device and equipment of their upstream and downstream, it usually needs configuration is super
The valve system that can be automatically turned on or close under pressure operating mode.In conventional practice, commonly using by pressure transmitter, control
The automatic valve system that system, two Five-channel magnetic valves, double acting pneumatic actuator and main valves are constituted realizes superpressure operating mode
Under automatic open close.
Pressure transmitter therein is used to detect the pressure in pressure pipeline or pressure vessel, and outputs signal to control
System, when pressure exceedes setting value, control system can send instruction change and be installed on double acting pneumatic actuator supply air line
Magnetic valve power supply state, and then change magnetic valve gas channel state so that pneumatic actuator act, reach unlatching
Or close the purpose of main valve.
The actuator wherein used is double acting actuator, and such actuator can be distinguished provided with two air chambers, power gas source
Into two air chambers, main valve is acted under the thrust difference effect of the pressure generation of two air chambers.
The magnetic valve matched with double acting pneumatic actuator is a kind of two Five-channel change-over valves, and such magnetic valve leads to
Often it is made up of electromagnetic component and two Five-channel valve bodies.Electromagnetic component is made up of the part such as magnet coil and magnetic core, valve
Body is made up of parts such as valve element, valve body and springs.Two refer to that valve element has two operating positions relative to valve body.Work as electromagnetic wire
When circle is powered or powered off, the collective effect of electromagnetic force and spring force will be such that valve element is acted from an operating position to another work
Make position, and then change the passage inside magnetic valve, reach that control power gas source is passed in and out the mesh of pneumatic actuator by required passage
's.
It is common using pressure transmitter, control system, two Five-channel magnetic valves, double acting pneumatic actuator and main valve
The main potential risk of valve automatic open close is when realizing superpressure, if pressure transmitter fail, or pressure transmitter with
Signal transmission failure between control system, or the power supply of magnetic valve go wrong, it is possible to pressure occur and already exceed to set
Constant-pressure, pneumatic actuator does not make the situation that main valve is acted as scheduled but, to pressure pipeline, pressure vessel and their upstream and downstream
Device threatened with equipment belt.Therefore, the reliability of the automatic valve system how is improved, it is ensured that main valve can during superpressure
Action is always the direction that industry is made great efforts as scheduled.
The content of the invention
For the not high defect of the automatic valve system reliability for solving prior art presence, the present invention provides one kind and can provided
The automatic valve system of the double acting pneumatic actuator driving of duplicate protection.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of double cropping that duplicate protection is provided
The automatic valve system driven with pneumatic actuator, including main pipeline, main valve, double acting pneumatic actuator, the first two five
Port valve and the second two five-way valves, described main valve is arranged on the main pipeline, and the main pipeline is divided into upstream
Pipeline and downstream line, described double acting pneumatic actuator are connected with the main valve, for controlling opening for the main valve
Close；
The first two five-way valves include the first import, first outlet, second outlet, the first drain and the second emptying
Mouthful, first import be connected with power gas source, and the second two five-way valves are including the second import, the 3rd export, the 4th goes out
Mouth, the 3rd drain and the 4th drain, second import are connected with the first outlet, and the described 3rd exports and described pair
The first cavity connection of action pneumatic executor, the 4th outlet and the second cavity of the double acting pneumatic actuator connect
Connect, the 4th drain is connected with second outlet；The first two five-way valves and the second two five-way valves one of them be
Two five-way electromagnetic valves, another is two position-5 way valves；
Pressure transmitter and controller are provided with described upstream line, the pressure transmitter is used to detect described
Pressure in play pipe road, the pressure value that the controller is detected according to the pressure transmitter controls two five energization magnetic
The working condition of valve；The pressure cavity of two position-5 way valve is connected by communicating pipe with the upstream line.
Further, described the first two five-way valves are two five-way electromagnetic valves, and the second two five-way valves are two
Position-5 way valve.
Replaced as one kind of above-mentioned technical proposal, described the first two five-way valves are two position-5 way valves, described
The second two five-way valves are two five-way electromagnetic valves.Two five-way electromagnetic valves and two position-5 way valve positions can be exchanged, and be reached
To identical effect.
Further, when the first two five-way valves are in working position for the moment, first import is connected with first outlet, institute
Second outlet is stated to connect with the second drain；When the first two five-way valves are in working position two, first import and second
Outlet, the first outlet is connected with the first drain；When the second two five-way valves are in working position for the moment, described second
Import and the 3rd outlet, the 4th outlet are connected with the 4th drain；When the second two five-way valves are in working position two
When, second import and the 4th outlet, the 3rd outlet are connected with the 3rd drain；
Preferably, two described position-5 way valves are strut buckling flip-over type reversal valve.
Further, described strut buckling flip-over type reversal valve includes core assembly, reversing cylinder, bar cage, cylinder and thin
It is arranged in stock, the core assembly in the reversing cylinder, the bar cage and cylinder are separately positioned on the two of the reversing cylinder
End, is provided with bonnet, described core assembly one end is through the bonnet and extends to institute between the bar cage and the reversing cylinder
State in bar cage, the elongate rod support is arranged between the bar cage and core assembly, and the core assembly other end is provided with
Piston head, the piston head is located in the cylinder, and the cavity of the cylinder forms the pressure chamber of two position-5 way valve,
Described communicating pipe one end is connected with the cavity of the cylinder.When pressure transmitter, controller, two five-way electromagnetic valve failures or letter
During number transmission failure, two five-way electromagnetic valves will not change working condition with the pressure change of medium in upstream line, two
Five-way electromagnetic valve is in working position one, and power gas source is directly conducted to two position-5 way valves, and now two position-5 way valves are made
With following (using the first two five-way valves as two five-way electromagnetic valves, the second two five-way valves is exemplified by two position-5 way valves)：
When the pressure (i.e. the pressure of medium in upstream line) of medium in communicating pipe is less than set-pressure, medium passes through piston head and valve
Core assembly is transferred to critical load of the power less than elongate rod of elongate rod, and elongate rod is stable, and the axial thrust of elongate rod makes valve element
Component is in operating position one, and power gas source power is passed through the first cavity of double acting pneumatic actuator, second by the 3rd outlet
Cavity is connected with the 4th outlet, the 4th drain, second outlet, the second drain in emptying state successively, and main valve is in
Closed mode；When the pressure (i.e. the pressure of medium in upstream line) of medium in communicating pipe is higher than set-pressure, medium passes through
Piston head and core assembly are transferred to critical load of the power higher than elongate rod of elongate rod, and elongate rod unstability simultaneously loses carrying energy
Power, core assembly moves to operating position two under the promotion of pressure medium, and power gas source passage is switched, and power gas source is by
One import, first outlet, the second import and the 4th outlet, into the second cavity of double acting pneumatic actuator, in the first cavity
Gas sequentially pass through the 3rd outlet and the 3rd drain and be vented, the action of double acting pneumatic actuator, the pneumatic execution of double acting
Device action drives main valve to open, and upstream line is connected with downstream line.
As another replacement of above-mentioned technical proposal, described strut buckling flip-over type reversal valve include core assembly,
Reversing cylinder, diaphragm, bar cage and elongate rod, described reversing cylinder one end are provided with membrane cavity, and the other end sets the bar cage, the film
Piece is arranged in the membrane cavity, and membrane cavity is divided into two parts of relative closure；The core assembly is arranged on the commutation
In cylinder, its one end is resisted against on the diaphragm, and the other end is extended in the bar cage, and described elongate rod support is arranged on described
Between core assembly and bar cage, part of the membrane cavity away from the core assembly forms the pressure of two position-5 way valve
Chamber, described communicating pipe one end is connected with part of the membrane cavity away from the core assembly.Its action principle and such scheme
Similar, difference is, the pressure of medium is transferred to elongate rod, core assembly work by diaphragm and core assembly in upstream line
Principle is identical with above-mentioned technical proposal.
Beneficial effect：Two five-way electromagnetic valve systems are arranged in parallel in the application on main pipeline and two position-5 way valves come
Independent triggers automatic valve system acting, even if two five-way electromagnetic valves, pressure transmitter in two five-way electromagnetic valve systems,
Control system or information transmission failure between it, two position-5 way valves can also trigger automatic valve system acting, as whole
The second of pressure system offer is protected again so that automatic valve system is relatively reliable.
Brief description of the drawings
Fig. 1 is that two five-way electromagnetic valves are in working position one, two position-5 way valves positioned at working position a period of time, automatic valve
System is closed structural representation, wherein the first two five-way valves are two five-way electromagnetic valves, the second two five-way valves
For two position-5 way valves；
Fig. 2 is that two five-way electromagnetic valves are in working position two, two position-5 way valves positioned at working position a period of time, automatic valve
System is in opening structural representation, wherein the first two five-way valves are two five-way electromagnetic valves, the second two five-way valves
For two position-5 way valves；
When Fig. 3 is that two five-way electromagnetic valves are in working position one, two position-5 way valves positioned at working position two, automatic valve
System is in opening structural representation, wherein the first two five-way valves are two five-way electromagnetic valves, the second two five-way valves
For two position-5 way valves；
Fig. 4 is in operating position a period of time structural representation for two position-5 way valves in embodiment 1；
Structural representation when Fig. 5 is in operating position two for two position-5 way valves in embodiment 1；
Fig. 6 is in operating position a period of time structural representation for two position-5 way valves in embodiment 2；
Structural representation when Fig. 7 is in operating position two for two position-5 way valves in embodiment 2；
Fig. 8 is that two five-way electromagnetic valves are in working position one, two position-5 way valves positioned at working position a period of time, automatic valve
System is closed structural representation, wherein the first two five-way valves are two position-5 way valves, the second two five-way valves
For two five-way electromagnetic valves；
Fig. 9 is that two five-way electromagnetic valves are in working position two, two position-5 way valves positioned at working position a period of time, automatic valve
System is in opening structural representation, wherein the first two five-way valves are two position-5 way valves, the second two five-way valves
For two five-way electromagnetic valves；
When Figure 10 is that two five-way electromagnetic valves are in working position one, two position-5 way valves positioned at working position two, automatic valve
Door system is in opening structural representation, wherein the first two five-way valves are two position-5 way valves, and the second two five lead to
Valve is two five-way electromagnetic valves.
1. upstream in figure, 2. downstream pipes, 3. double acting pneumatic actuators, 31. first cavitys, 32. second cavitys,
4. main valve, 5. two five-way electromagnetic valves, 51. magnetic valve imports, 52. first electromagnetic valve outlets, 53. second electromagnetic valve outlets,
54. the first magnetic valve drain, 55. second magnetic valve drains, 6. liang of position-5 way valves, 601. reversal valve imports, 602.
First diverter valve outlet, 603. second diverter valve outlets, 604. first reversal valve drains, 605. second reversal valve drains,
61. reversing cylinder, 62. core assemblies, 63. elongate rods, 64. bar cages, 65. membrane cavities, 66. diaphragms, 67. cylinders, 68. piston heads, 69.
Bonnet, 7. communicating pipes, 8. power gas sources, 9. pressure transmitters, 91. controllers.
Embodiment
Embodiment 1
As shown in Figures 1 to 3, a kind of automatic valve system for the double acting pneumatic actuator driving that duplicate protection is provided,
Including main pipeline, main valve 4, double acting pneumatic actuator 3, the first two five-way valves and the second two five-way valves, described master
Valve 4 is arranged on the main pipeline, and the main pipeline is divided into upstream line 1 and downstream line 2, described double acting
Pneumatic actuator 3 is connected with the main valve 4, the keying for controlling the main valve 4；
The first two five-way valves include the first import, first outlet, second outlet, the first drain and the second emptying
Mouthful, first import is connected with power gas source 8, the second two five-way valves include the second import, the 3rd export, the 4th goes out
Mouth, the 3rd drain and the 4th drain, second import are connected with the first outlet, and the described 3rd exports and described pair
First cavity 31 of action pneumatic executor 3 is connected, the 4th outlet and the second cavity of the double acting pneumatic actuator 3
32 connections, the 4th drain is connected with second outlet；
When the first two five-way valves are in working position for the moment, first import is connected with first outlet, and described second goes out
Mouth is connected with the second drain；When the first two five-way valves are in working position two, first import is connected with second outlet,
The first outlet is connected with the first drain；When the second two five-way valves are in working position for the moment, second import and the
Three outlets, the 4th outlet is connected with the 4th drain；When the second two five-way valves are in working position two, described the
Two imports and the 4th outlet, the 3rd outlet are connected with the 3rd drain；The first two five-way valves are in the present embodiment
Two five-way electromagnetic valves 5, the second two five-way valves are (two be directly connected to import and power gas source 8 of two position-5 way valve 6
Position five-way valve is the first two five-way valves, wherein it is that the first magnetic valve goes out that the first import, which is magnetic valve import 51, first outlet,
Mouthfuls 52, second outlet is that the second electromagnetic valve outlet 53, the first drain are that the first magnetic valve drain 54, the second drain are the
Two magnetic valve drains 55；Second import is that reversal valve import 601, the 3rd outlet are the first diverter valve outlet 602, the 4th outlet
It is that the first reversal valve drain 604, the 4th drain are that the second reversal valve is put for the second diverter valve outlet 603, the 3rd drain
Eat dishes without rice or wine 605)；
Pressure transmitter 9 and controller 91 are provided with described upstream line 1, the pressure transmitter 9 is used to detect
Pressure in the upstream line 1, the pressure value control described two that the controller 91 is detected according to the pressure transmitter 9
The working condition of position five-way electromagnetic valve 5；The pressure cavity of two position-5 way valve 6 passes through communicating pipe 7 and the upstream tube
Road 1 is connected.
Two described position-5 way valves 6 are strut buckling flip-over type reversal valve.Specifically, as shown in Figures 4 and 5, it is described
Strut buckling flip-over type reversal valve include core assembly 62, reversing cylinder 61, bar cage 64, cylinder 67 and elongate rod 63, the valve
It is arranged in core assembly 62 in the reversing cylinder 61, the bar cage 64 and cylinder 67 are separately positioned on the two of the reversing cylinder 61
End, is provided with bonnet 69 between the bar cage 64 and the reversing cylinder 61, described one end of core assembly 62 passes through the bonnet 69
And extend in the bar cage 64, the support of elongate rod 63 is arranged between the bar cage 64 and core assembly 62, the valve
The other end of core assembly 62 is provided with piston head 68, and the piston head 68 is located in the cylinder 67, the cavity shape of the cylinder 67
Into the pressure chamber of two position-5 way valve 6, described one end of communicating pipe 7 is connected with the cavity of the cylinder 67.
Operation principle：Pressure transmitter 9 detects pressure in upstream line 1, and transmits signals to controller 91, works as inspection
When the pressure measured is less than predetermined value, controller 91 does not change the working condition of two five-way electromagnetic valves 5, and main valve 4 keeps closing
Closed state, as shown in Figure 1；When the pressure detected exceedes predetermined value, controller 91 sends instruction and changes two five energization magnetic
The power supply state of valve 5, and then its valve element is converted into working position two from working position one, two position-5 way valves 6 keep working position
One, as shown in Fig. 2 power gas source 8 is by the first import of the first two five-way valves, second outlet, the 4th drain and the 4th
Outlet enters in the second cavity 32 of double acting pneumatic actuator 3, and the gas in first chamber 31 sequentially passes through the 3rd outlet, the
Two imports, first outlet and the first drain are simultaneously vented, and double acting pneumatic actuator 3 drives main valve 4 to act, and then open master
Valve 4.
When pressure transmitter 9, controller 91, two five-way electromagnetic valves 5 fail or during signal transmission failure, two five energizations
Magnet valve 5 will not change working condition with the pressure change of medium in upstream 1, and two five-way electromagnetic valves 5 are in working position
One, power gas source 8 is directly conducted to the second two five-way valves by the first import and first outlet, now two position-5 way valves
6 effects are as follows：When the pressure (i.e. the pressure of medium in upstream 1) of medium in communicating pipe 7 is less than set-pressure, medium leads to
Cross piston head 68 and core assembly 62 be transferred to the power of elongate rod 63 and be less than the critical load of elongate rod 63, the stabilization of elongate rod 63,
The axial thrust of elongate rod 63 makes core assembly 62 be in operating position one, as shown in figure 4, power gas source power 8 is gone out by the 3rd
Mouth is passed through the first cavity 31 of double acting pneumatic actuator 3, the second cavity 32 successively with the 4th outlet, the 4th drain, second
Outlet, the connection of the second drain are in emptying state, and main valve 4 is closed, as shown in Figure 1；When medium in communicating pipe 7
Pressure (i.e. the pressure of medium in upstream 1) be higher than set-pressure when, medium is passed by piston head 68 and core assembly 62
The power for being handed to elongate rod 63 is higher than the critical load of elongate rod 63, and the unstability of elongate rod 63 simultaneously loses bearing capacity, core assembly 62
Operating position two is moved under the promotion of pressure medium, as shown in figure 5, the passage of power gas source 8 is switched, power gas source 8 by
First import, first outlet, the second import and the 4th outlet, into the second cavity 32 of double acting pneumatic actuator 3, the first chamber
Gas in body 31 sequentially passes through the 3rd outlet and the 3rd drain and is vented, and double acting pneumatic actuator 3 is acted, double acting gas
The dynamic action of actuator 3 drives main valve 4 to open, and upstream 1 is connected with downstream pipe 1, as shown in Figure 3.Wherein two five lead to
Reversal valve 6 is purely mechanic mechanism, realizes the function of pressure transmitter 9, two five-way electromagnetic valves 5 and the three of controller 91, energy
Enough independent triggers automatic valve system actings, are used as double protection.
Embodiment 2
As shown in Figures 6 and 7, the strut buckling flip-over type reversal valve in embodiment 1 is replaced with into following structure, including valve element
Component 62, reversing cylinder 61, diaphragm 66, bar cage 64 and elongate rod 63, described one end of reversing cylinder 61 are provided with membrane cavity 65, the other end
The bar cage 64 is set, and the diaphragm 66 is arranged in the membrane cavity 65, and membrane cavity 65 is divided into two parts of relative closure；
The core assembly 62 is arranged in the reversing cylinder 61, and its one end is resisted against on the diaphragm 66, and the other end extends to described
In bar cage 64, the described support of elongate rod 63 is arranged between the core assembly 62 and bar cage 64, and the membrane cavity 65 is away from institute
The part for stating core assembly 62 forms the pressure chamber of two position-5 way valve 6, described one end of communicating pipe 7 and the membrane cavity
The 65 part connections away from the core assembly 62.Other structures be the same as Example 1.Its action principle is similar with such scheme, area
It is not, the pressure of medium is transferred to elongate rod 63, the work of core assembly 62 by diaphragm 66 and core assembly 62 in upstream line 1
Make principle identical with above-mentioned technical proposal.
Embodiment 3
As seen in figs. 8-10, it is that the first two five-way valves are two position-5 way valves 6, institute with the difference of embodiment 1
It is that (wherein the first import is that reversal valve import 601, first outlet are the to two five-way electromagnetic valves 5 to state the second two five-way valves
One diverter valve outlet 602, second outlet be the second diverter valve outlet 603, the first drain be the first reversal valve drain 604,
Second drain is the second reversal valve drain 605；Second import is that magnetic valve import 51, the 3rd outlet are that the first magnetic valve goes out
Mouthful the 52, the 4th outlet is that the second electromagnetic valve outlet 53, the 3rd drain are that the first magnetic valve drain 54, the 4th drain are the
Two magnetic valve drains 55), other structures be the same as Example 1 can equally realize the function of embodiment 1.
Embodiment 4
It is with the difference of embodiment 3, the strut buckling flip-over type reversal valve in embodiment 3 is replaced with into following structure, wraps
Core assembly 62, reversing cylinder 61, diaphragm 66, bar cage 64 and elongate rod 63 are included, described one end of reversing cylinder 61 is provided with membrane cavity 65,
The other end sets the bar cage 64, and the diaphragm 66 is arranged in the membrane cavity 65, and membrane cavity 65 is divided into relative closure
Two parts；The core assembly 62 is arranged in the reversing cylinder 61, and its one end is resisted against on the diaphragm 66, other end extension
In to the bar cage 64, the described support of elongate rod 63 is arranged between the core assembly 62 and bar cage 64, the membrane cavity 65
Part away from the core assembly 62 forms the pressure chamber of two position-5 way valve 6, described one end of communicating pipe 7 and institute
State part connection (with embodiment 2 two position-5 way valve structures identical) of the membrane cavity 65 away from the core assembly 62.Other
Structure be the same as Example 3.Its action principle is similar with the scheme of embodiment 3, and difference is, the pressure of medium passes through in upstream line 1
Diaphragm 66 and core assembly 62 are transferred to elongate rod 63, and the operation principle of core assembly 62 is identical with the technical scheme of embodiment 3.
Claims (7)
1. a kind of automatic valve system for the double acting pneumatic actuator driving that duplicate protection is provided, it is characterised in that：Including
Main pipeline, main valve (4), double acting pneumatic actuator (3), the first two five-way valves and the second two five-way valves, described master
Valve (4) is arranged on the main pipeline, and the main pipeline is divided into upstream line (1) and downstream line (2), described
Double acting pneumatic actuator (3) is connected with the main valve (4), the keying for controlling the main valve (4)；
The first two five-way valves include the first import, first outlet, second outlet, the first drain and the second drain,
First import is connected with power gas source, the second two five-way valves include the second import, the 3rd outlet, the 4th outlet,
3rd drain and the 4th drain, second import are connected with the first outlet, the 3rd outlet and the double cropping
Connected with the first cavity of pneumatic actuator, the 4th outlet is connected with the second cavity of the double acting pneumatic actuator,
4th drain is connected with second outlet；The first two five-way valves and the second two five-way valves one of them be two
Five-way electromagnetic valve (5), another is two position-5 way valves (6)；
Pressure transmitter (9) and controller (91) are provided with described upstream line (1), the pressure transmitter (9) is used for
Detect the pressure in the upstream line (1), the pressure value that the controller (91) detects according to the pressure transmitter (9)
Control the working condition of two five-way electromagnetic valves (5)；The pressure cavity of two position-5 way valve (6) passes through communicating pipe
(7) it is connected with the upstream line (1).
2. the automatic valve system of the double acting pneumatic actuator driving according to claim 1 that duplicate protection is provided,
It is characterized in that：Described the first two five-way valves are two five-way electromagnetic valves (5), and the second two five-way valves are two five
Logical reversal valve (6).
3. the automatic valve system of the double acting pneumatic actuator driving according to claim 1 that duplicate protection is provided,
It is characterized in that：Described the first two five-way valves are two position-5 way valves (6), and the second two five-way valves are two five
Three-way electromagnetic valve (5).
4. the automatic valve system of the double acting pneumatic actuator that duplicate protection the is provided driving according to Claims 2 or 3
System, it is characterised in that：When the first two five-way valves are in working position for the moment, first import is connected with first outlet, described
Second outlet is connected with the second drain；When the first two five-way valves are in working position two, first import goes out with second
Mouth connection, the first outlet is connected with the first drain；When the second two five-way valves are in working position for the moment, described second enters
Mouth and the 3rd outlet, the 4th outlet are connected with the 4th drain；When two position-5 way valves are in working position two,
Second import and the 4th outlet, the 3rd outlet are connected with the 3rd drain.
5. the automatic valve system of the double acting pneumatic actuator that duplicate protection the is provided driving according to Claims 2 or 3
System, it is characterised in that：Described two position-5 way valves (6) are strut buckling flip-over type reversal valve.
6. the automatic valve system of the double acting pneumatic actuator driving according to claim 5 that duplicate protection is provided,
It is characterized in that：Described strut buckling flip-over type reversal valve includes core assembly (62), reversing cylinder (61), bar cage (64), gas
It is arranged in cylinder (67) and elongate rod (63), the core assembly (62) in the reversing cylinder (61), the bar cage (64) is gentle
Cylinder (67) is separately positioned on the two ends of the reversing cylinder (61), and valve is provided between the bar cage (64) and the reversing cylinder (61)
Cover (69), described core assembly (62) one end is through the bonnet (69) and extends in the bar cage (64), the elongate rod
(63) support is arranged between the bar cage (64) and core assembly (62), and core assembly (62) other end is provided with piston
Head (68), the piston head (68) is located in the cylinder (67), and the cavity of the cylinder (67) forms described two five and logical changed
To the pressure chamber of valve (6), described communicating pipe (7) one end is connected with the cavity of the cylinder (67).
7. the automatic valve system of the double acting pneumatic actuator driving according to claim 5 that duplicate protection is provided,
It is characterized in that：Described strut buckling flip-over type reversal valve includes core assembly (62), reversing cylinder (61), diaphragm (66), bar
Cage (64) and elongate rod (63), described reversing cylinder (61) one end are provided with membrane cavity (65), and the other end sets the bar cage (64),
The diaphragm (66) is arranged in the membrane cavity (65), and membrane cavity (65) is divided into two parts of relative closure；The valve element
Component (62) is arranged in the reversing cylinder (61), and its one end is resisted against on the diaphragm (66), and the other end extends to the bar
In cage (64), described elongate rod (63) support is arranged between the core assembly (62) and bar cage (64), the membrane cavity
(65) part away from the core assembly (62) forms the pressure chamber of two position-5 way valve (6), described communicating pipe
(7) one end is connected with part of the membrane cavity (65) away from the core assembly (62).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710458458.5A CN107035904B (en) | 2017-06-16 | 2017-06-16 | It can provide the automatic valve system of the double acting pneumatic actuator driving of duplicate protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710458458.5A CN107035904B (en) | 2017-06-16 | 2017-06-16 | It can provide the automatic valve system of the double acting pneumatic actuator driving of duplicate protection |
Publications (2)
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| CN107035904A true CN107035904A (en) | 2017-08-11 |
| CN107035904B CN107035904B (en) | 2019-01-25 |
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| CN201710458458.5A Active CN107035904B (en) | 2017-06-16 | 2017-06-16 | It can provide the automatic valve system of the double acting pneumatic actuator driving of duplicate protection |
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| US4143851A (en) * | 1976-11-03 | 1979-03-13 | Borsig Gesellschaft Mit Beschrankter Haftung | Gas-oil drive for forward and reverse mechanical adjusting movements |
| US6189563B1 (en) * | 1999-07-15 | 2001-02-20 | Julian S. Taylor | Electronic pressure control pilot operated relief valve |
| CN204062041U (en) * | 2014-02-17 | 2014-12-31 | 刘海亮 | By the automatic valve of strut buckling trigger action under superpressure operating mode |
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| CN105465412A (en) * | 2015-02-17 | 2016-04-06 | 江苏瑞朗博机械设备有限公司 | Pressure bar destabilizing trigger type reversing valve |
| CN105782523A (en) * | 2014-12-26 | 2016-07-20 | 江苏瑞朗博机械设备有限公司 | Valve assembly for triggering motion by means of pressure bar destabilizing in overpressure process |
| CN207661179U (en) * | 2017-06-16 | 2018-07-27 | 江苏瑞朗博机械设备有限公司 | The automatic valve system of the double acting pneumatic actuator driving of duplicate protection can be provided |
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2017
- 2017-06-16 CN CN201710458458.5A patent/CN107035904B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143851A (en) * | 1976-11-03 | 1979-03-13 | Borsig Gesellschaft Mit Beschrankter Haftung | Gas-oil drive for forward and reverse mechanical adjusting movements |
| US6189563B1 (en) * | 1999-07-15 | 2001-02-20 | Julian S. Taylor | Electronic pressure control pilot operated relief valve |
| CN204062041U (en) * | 2014-02-17 | 2014-12-31 | 刘海亮 | By the automatic valve of strut buckling trigger action under superpressure operating mode |
| CN105782523A (en) * | 2014-12-26 | 2016-07-20 | 江苏瑞朗博机械设备有限公司 | Valve assembly for triggering motion by means of pressure bar destabilizing in overpressure process |
| CN105465412A (en) * | 2015-02-17 | 2016-04-06 | 江苏瑞朗博机械设备有限公司 | Pressure bar destabilizing trigger type reversing valve |
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| CN207661179U (en) * | 2017-06-16 | 2018-07-27 | 江苏瑞朗博机械设备有限公司 | The automatic valve system of the double acting pneumatic actuator driving of duplicate protection can be provided |
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| Publication number | Publication date |
|---|---|
| CN107035904B (en) | 2019-01-25 |
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Application publication date: 20170811 Assignee: Hanzhong (Nanjing) Technology Co., Ltd Assignor: Jiangsu Reliable Mechanical Equipment Co.,Ltd. Contract record no.: X2020980005319 Denomination of invention: Automatic valve system driven by double acting pneumatic actuator with double protection Granted publication date: 20190125 License type: Exclusive License Record date: 20200825 |
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