CN209213154U - A kind of valve opening Redundant Control mechanism - Google Patents
A kind of valve opening Redundant Control mechanism Download PDFInfo
- Publication number
- CN209213154U CN209213154U CN201822127678.2U CN201822127678U CN209213154U CN 209213154 U CN209213154 U CN 209213154U CN 201822127678 U CN201822127678 U CN 201822127678U CN 209213154 U CN209213154 U CN 209213154U
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- solenoid valve
- control
- valve
- output end
- gas source
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Abstract
The utility model relates to a kind of valve opening Redundant Control mechanisms, including gas source and control gas source, control the input terminal of gas source connection control filtering pressure reducing valve, control the first control solenoid valve of output end end connection and the second control solenoid valve of filtering pressure reducing valve, second control solenoid valve is equipped with to obtain electrical input and power loss input terminal, and output end is arranged in the second control solenoid valve other side.The utility model carries out solenoid valve Redundant Control by increasing a solenoid valve, when any one solenoid valve breaks down wherein, can guarantee that gas circuit is unobstructed, does not influence the variation of current gas circuit, guarantees that instrument system can operate normally.
Description
Technical field
The utility model mechanism belongs to Self controlling valve technical field, specifically a kind of valve opening Redundant Control machine
Structure.
Background technique
Self controlling valve belongs to " executor " of instrument and meter for automation, as automatic controlling level is higher and higher, Chemical Manufacture
Increasingly maturation, many chemical plant installations of technique are also done increasing.The safe operation of process units, the peace of human and environment
Entirely, the safety including production equipment property, gets growing concern for and payes attention to.Solenoid valve conduct in industrial control system
Important automation control element causes valve to be turned on or off suddenly, causes greatly to production safety once breaking down
Influence.
Summary of the invention
The purpose of this utility model is to provide a kind of valve opening Redundant Control mechanism, by increase a solenoid valve into
Row solenoid valve Redundant Control can guarantee that gas circuit is unobstructed, not influence to work as when any one solenoid valve breaks down wherein
The variation of preceding gas circuit guarantees that instrument system can operate normally.
According to technical solution provided by the utility model: a kind of valve opening Redundant Control mechanism, including gas source and control
Gas source processed, the input terminal of the control gas source connection control filtering pressure reducing valve, the output end end of the control filtering pressure reducing valve connects
The first control solenoid valve and the second control solenoid valve are connect, the second control solenoid valve is equipped with to obtain electrical input and power loss
Input terminal, it is described second control the solenoid valve other side be arranged output end, it is described control filtering pressure reducing valve output end connection described in
First, which controls the input terminal of solenoid valve and described second, controls the electrical input that obtains of solenoid valve, and described first controls the defeated of solenoid valve
Outlet connects the power loss input terminal of the second control solenoid valve, and the input terminal of the gas source connection filtering pressure reducing valve is described
The input terminal of the output end connection solenoid valve of filtering pressure reducing valve, the signal end connection of the solenoid valve the second control solenoid valve
Output end, the output end of the solenoid valve connects pneumatic actuator, the pneumatic actuator connecting valve.
The pneumatic actuator includes cabinet as a further improvement of the utility model, and the cabinet is by a left side
Partition and right clapboard are divided into spring housing, cabinet room and gas chamber, sliding setting piston in the left clapboard and the right clapboard
Bar, the piston rod are provided with spring bearer plate in the end of the spring housing, and the piston rod is set in the end of the gas chamber
It is equipped with piston head, gas chamber is divided into left disengaging air cavity and right disengaging air cavity, the spring bearer plate and the left side by the piston head
Spring is set between partition, and the piston rod is arranged sliding block in the part of the cabinet room, is pivotally connected crank on the cabinet, described
Piston rod is slidably connected the crank by sliding block, the crank other end connecting valve, and the valve two sides installation limit is opened
It closes；The output end of the solenoid valve connects the left disengaging air cavity.
The atmospheric pressure value of the gas source and the control gas source is 400KPA as a further improvement of the utility model,.
The valve is three-eccentric-butterfly-valve as a further improvement of the utility model,.
The above-mentioned air path elements connection size is 1/2 " NPT as a further improvement of the utility model,.
The above-mentioned first control solenoid valve and the second control solenoid valve as a further improvement of the utility model,
Signal end be all connected with external 24V power supply.
The utility model compared with prior art, has the advantages that
1, the utility model structure is simple, occupies little space；High reliablity.
2, the utility model carries out solenoid valve Redundant Control by increasing a solenoid valve, wherein any one solenoid valve
It when failure, can guarantee that gas circuit is unobstructed, not influence the variation of current gas circuit, guarantee that instrument system can be transported normally
Row.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the overall structure diagram of pneumatic actuator in the utility model.
Specific embodiment
The utility model is further described below with reference to specific attached drawing.
In Fig. 1, including gas source 1, filtering pressure reducing valve 2, solenoid valve 3, control gas source 4, control filtering pressure reducing valve 5, first
Control solenoid valve 6, pneumatic actuator 7, left clapboard 7-1, spring housing 7-2, piston rod 7-4, spring bearer plate 7-5, piston head 7-
6, cabinet 7-7, spring 7-8, sliding block 7-9, left disengaging air cavity 7-10, right disengaging air cavity 7-11, crank 7-12, right clapboard 7-13,
Cabinet room 7-14, valve 8, second control solenoid valve 9, limit switch 10 etc..
As shown in Figure 1, one of embodiment valve opening Redundant Control mechanism, including gas source 1 and control gas source 4,
Control the input terminal of the connection control filtering pressure reducing valve 5 of gas source 4, air pressure 400KPA.The output end end for controlling filtering pressure reducing valve 5 connects
Connect the first control solenoid valve 6 and the second control solenoid valve 9.It is signal end at the top of first control solenoid valve 6, electric signal can be received
Or gas source signal, the first control 6 side of solenoid valve are equipped with input terminal, output end is arranged in first control 6 other side of solenoid valve.The
It is signal end at the top of two control solenoid valves 9, electric signal or gas source signal can be received, the second control 9 side of solenoid valve is equipped with
Electrical input is obtained, obtaining is power loss input terminal above electrical input, and output end is arranged in second control 9 other side of solenoid valve.It controlled
Filter pressure reducing valve 5 output end connection first control solenoid valve 6 input terminal and second control solenoid valve 9 electrical input.The
The power loss input terminal of output end connection the second control solenoid valve 9 of one control solenoid valve 6.First control solenoid valve 6 and the second control
The signal end of solenoid valve 9 processed is all connected with 24V external power supply.
Gas source 1 connects the input terminal of filtering pressure reducing valve 2, air pressure 400KPA.The output end of filtering pressure reducing valve 2 connects electricity
The input terminal of magnet valve 3, the input terminal of solenoid valve 3 can receive electric signal or gas source signal, the signal end connection of solenoid valve 3 the
The output end of two control solenoid valves 9, the output end of solenoid valve 3 connects pneumatic actuator 7, as shown in Fig. 2, pneumatic actuator
7 include cabinet 7-7, and cabinet 7-7 is spring housing 7-2, cabinet room 7-14 and air cavity by left clapboard 7-1 and right clapboard 7-13 points
Sliding setting piston rod 7-4, piston rod 7-4 are provided in the end of spring housing 7-2 in room, left clapboard 7-1 and right clapboard 7-13
Spring bearer plate 7-5, piston rod 7-4 are provided with piston head 7-6 in the end of gas chamber, piston head 7-6 by right chamber be divided into it is left into
Outlet chamber 7-10 and right disengaging air cavity 7-11, is arranged spring 7-8 between spring bearer plate 7-5 and left clapboard 7-1, piston rod 7-4 exists
Sliding block 7-9 is arranged in the part of cabinet room 7-14, is pivotally connected crank 7-12 on cabinet 7-7, the one end crank 7-12 is provided with U-type groove, piston
The U-type groove that bar 7-4 is slidably connected on crank 7-12 by sliding block 7-9.Crank 7-12 other end connecting valve 8.Solenoid valve 3 it is defeated
The left disengaging air cavity 7-10 of outlet connection pneumatic actuator 7.8 two sides of valve are installed by limit switch 10.Valve in the present embodiment
Door 8 is three-eccentric-butterfly-valve.
Above-mentioned air path elements connection size is 1/2 " NPT.
The specific installation applicable cases of the utility model are as follows: when needing to close valve 8, the first control 6 He of solenoid valve
The signal end input electrical signal of second control solenoid valve 9, control gas source 4 pass sequentially through control filtering pressure reducing valve 5 and the second control
Solenoid valve 9 enters the signal end of solenoid valve 3, and solenoid valve 3 is opened.
When the first control 6 failure power loss of solenoid valve, control gas source 4 can still pass through the second control solenoid valve 9
Into the signal end of solenoid valve 3, solenoid valve 3 is opened.
When the second control 9 failure power loss of solenoid valve, control gas source 4 is first by the first control solenoid valve 6, then
Enter the second control solenoid valve 9 from the power loss input terminal of the second control solenoid valve 9, then from the second control 9 output end of solenoid valve
Into the signal end for entering solenoid valve 3, solenoid valve 3 is opened.
Gas source 1 passes sequentially through filtering pressure reducing valve 2 and solenoid valve 3 enters the left disengaging air cavity 7-10 of pneumatic actuator 7.
Gas source 1 pushes piston head 7-6 to slide piston rod 7-4 and sliding block 7-9 to the right, and sliding block 7-9 drives crank 7-12 to turn clockwise
It is dynamic, valve 8 is closed, spring 7-8 is moved to right with spring bearer plate 7-5's and generated compression.When valve 8 touches limit switch 10
When stop motion.
When needing Open valve 8, the first control solenoid valve 6 and the second control solenoid valve 9 are powered off, 4 nothing of gas source is controlled
Method opens solenoid valve 3, and gas source 1 cannot be introduced into the left disengaging air cavity 7-10 of pneumatic actuator 7.Compressed spring 7-8 is pushed away
Dynamic spring bearer plate 7-5 slides piston rod 7-4 and sliding block 7-9 to the left, and sliding block 7-9 drives crank 7-12 to rotate counterclockwise, by valve
Door 8 is opened.
Claims (6)
1. a kind of valve opening Redundant Control mechanism, it is characterised in that: the mechanism includes gas source (1) and controls gas source (4),
The input terminal of control gas source (4) connection control filtering pressure reducing valve (5), the output end end of control filtering pressure reducing valve (5)
The first control solenoid valve (6) of connection and the second control solenoid valve (9), second control solenoid valve (9) are equipped with to obtain electric input
Output end is arranged in end and power loss input terminal, second control solenoid valve (9) other side, control filtering pressure reducing valve (5)
Output end connection it is described first control solenoid valve (6) input terminal and it is described second control solenoid valve (9) electrical input, institute
State the power loss input terminal of output end connection second control solenoid valve (9) of the first control solenoid valve (6), the gas source
(1) input terminal of filtering pressure reducing valve (2) is connected, the output end of the filtering pressure reducing valve (2) connects the input terminal of solenoid valve (3),
The output end of the signal end connection of the solenoid valve (3) second control solenoid valve (9), the output end of the solenoid valve (3)
It connects pneumatic actuator (7), pneumatic actuator (7) connecting valve (8).
2. a kind of valve opening Redundant Control mechanism as described in claim 1, it is characterised in that: the pneumatic actuator
It (7) include cabinet (7-7), the cabinet (7-7) is divided into spring housing (7-2), cabinet by left clapboard (7-1) and right clapboard (7-13)
Sliding setting piston rod (7-4), institute in room (7-14) and gas chamber, the left clapboard (7-1) and the right clapboard (7-13)
It states piston rod (7-4) to be provided with spring bearer plate (7-5) in the end of the spring housing (7-2), the piston rod (7-4) is described
The end of gas chamber is provided with piston head (7-6), and gas chamber is divided into left disengaging air cavity (7-10) and the right side by the piston head (7-6)
It passes in and out air cavity (7-11), spring (7-8) is set between the spring bearer plate (7-5) and the left clapboard (7-1), the piston rod
Sliding block (7-9) is arranged in the part of the cabinet room (7-14) in (7-4), is pivotally connected crank (7-12) on the cabinet (7-7), described
Piston rod (7-4) is slidably connected the crank (7-12) by sliding block (7-9), crank (7-12) other end connecting valve
(8), valve (8) two sides installation limit switch (10)；The output end of the solenoid valve (3) connects the left disengaging air cavity
(7-10).
3. a kind of valve opening Redundant Control mechanism as described in claim 1, it is characterised in that: the gas source (1) and institute
The atmospheric pressure value for stating control gas source (4) is 400KPA.
4. a kind of valve opening Redundant Control mechanism as described in claim 1, it is characterised in that: the valve (8) is three inclined
Heart butterfly valve.
5. a kind of valve opening Redundant Control mechanism as described in claim 1, it is characterised in that: the above-mentioned air path elements connect
Mouth size is 1/2 " NPT.
6. a kind of valve opening Redundant Control mechanism as described in claim 1, it is characterised in that: the above-mentioned first control electricity
Magnet valve (6) and the signal end of second control solenoid valve (9) are all connected with external 24V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127678.2U CN209213154U (en) | 2018-12-18 | 2018-12-18 | A kind of valve opening Redundant Control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127678.2U CN209213154U (en) | 2018-12-18 | 2018-12-18 | A kind of valve opening Redundant Control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209213154U true CN209213154U (en) | 2019-08-06 |
Family
ID=67465100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822127678.2U Active CN209213154U (en) | 2018-12-18 | 2018-12-18 | A kind of valve opening Redundant Control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209213154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953211A (en) * | 2019-11-21 | 2020-04-03 | 浙江浙能技术研究院有限公司 | Control device and method for redundant design of double electromagnetic valves |
-
2018
- 2018-12-18 CN CN201822127678.2U patent/CN209213154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953211A (en) * | 2019-11-21 | 2020-04-03 | 浙江浙能技术研究院有限公司 | Control device and method for redundant design of double electromagnetic valves |
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