CN206280524U - pneumatic ball valve with automatic sealing function - Google Patents
pneumatic ball valve with automatic sealing function Download PDFInfo
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- CN206280524U CN206280524U CN201621239875.8U CN201621239875U CN206280524U CN 206280524 U CN206280524 U CN 206280524U CN 201621239875 U CN201621239875 U CN 201621239875U CN 206280524 U CN206280524 U CN 206280524U
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- changement
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Abstract
The utility model discloses a kind of pneumatic ball valve with automatic sealing function, including valve body, valve element, valve rod, the drive device for driving valve rod to rotate, valve seat sealing mechanism and seal control device, valve body is respectively provided on two sides with high-pressure side pressure tappings and low-pressure end pressure tappings, seal control device includes the changement that can mutually switch to supercharging and release and the control loop for driving changement to run, control loop includes the power switch and controlling switch of control on/off, power switch, controlling switch and changement form series loop, valve rod is provided with the executive item that its closure is realized in valve fully closed position touch control switch, when series loop is powered, valve support chamber is by changement and high-pressure side pressure tappings UNICOM；When series loop is powered off, valve support chamber is by changement and low-pressure end pressure tappings UNICOM.In such scheme, changement is powered and commutates, and realizes seal operation；Power-off commutation, realizes that low torque is opened.
Description
Technical field
The utility model is related to a kind of valve, especially a kind of pneumatic ball valve with automatic sealing function.
Background technology
Ball valve is widely used in petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel
The industries such as iron, ball valve can be divided into according to the difference of type of drive：Pneumatic ball valve, electrical ball valve and liquid with automatic sealing function
Dynamic ball valve etc., wherein the pneumatic ball valve application with automatic sealing function is relatively broad, the Pneumatic ball with automatic sealing function
The faucet body of valve is spheroid or hemisphere, has manhole or passage by its axis, during use, it is only necessary to rotate
90 degree and that it can just closed is tight using the torque of very little, it is mainly to be driven by pneumatic means and runs, so as to control ball valve
Opening and closing, with simple to operate, the advantages of good seal performance.
China Patent No. is the patent of 201210410089.X, and it is disclosed, and a kind of sealed reliable open and close torque is small to be had
The pneumatic ball valve of automatic sealing function, including the ball valve body with valve pocket, the spheroid that is placed in inside valve pocket and spheroid are connected
Valve rod and the valve seat sealing mechanism that is placed between ball valve body and spheroid, valve pocket both sides respectively with intake channel and exit passageway
UNICOM, valve stem part is placed on outside ball valve body, and the pneumatic means for driving valve rod rotation, valve base sealing machine are provided with outside ball valve body
Structure includes ring-type valve component and three-way diverter valve, and ball valve body internal chamber wall is provided with opening towards the ring-type valve component chamber of spheroid,
Valve component opposing spheres are slidably disposed in ring-type valve component chamber, and valve component is airtight with ring-type valve component chamber to match somebody with somebody
Close and constitute similar piston structure, the side of ball valve body dorsad spheroid is provided with pretension elastic component, and ball valve body is provided with and valve component
The valve support chamber passage that dorsad the ring-type valve component chamber conducting of spheroid side is connected, three interfaces difference of the three-way diverter valve
With valve support chamber passage, intake channel and exit passageway UNICOM, under the pneumatic ball valve closed mode with automatic sealing function, enter
Mouth passage is by three-way diverter valve and valve support chamber passage UNICOM, when the pneumatic ball valve with automatic sealing function is opened, valve seat
Chamber passage is by three-way diverter valve and exit passageway UNICOM；Pneumatic ball valve with automatic sealing function is additionally provided with Stress control and changes
To valve, Stress control reversal valve is serially connected in the supply source of the gas pipeline of pneumatic means, and Stress control reversal valve is normally off, when
The pressure of exit passageway reaches setting value with the pressure differential in ring-type valve component chamber, and Stress control reversal valve is open-minded.Above-mentioned technology
The problem of presence:Valve body is in sealing state, and the pressure differential of Stress control reversal valve detection valve support chamber passage and exit passageway is big
When setting value, Stress control reversal valve is closed；, it is necessary to manipulate three-way diverter valve so that valve support chamber passage and going out when valve body is opened
Mouthful passage UNICOM, unload press operation, and the pressure differential of Stress control reversal valve detection valve support chamber passage and exit passageway is less than setting
During definite value, Stress control reversal valve is opened, source of ventilating, and drives pneumatic plant running, so needs control three-way diverter valve manually
Commutated, it is cumbersome, it is not convenient enough.
The content of the invention
The utility model overcomes the deficiencies in the prior art, there is provided a kind of pneumatic ball valve with automatic sealing function,
It has preferable control loop, and control changement is commutated and valve support chamber is pressurized or release, sealed automatically
Press operation is operated or unloads, good seal performance opens and closes low torque.
To achieve these goals, the technical solution adopted in the utility model is：A kind of gas with automatic sealing function
Dynamic ball valve, including valve body, valve element, valve rod, the drive device for driving valve rod rotation, valve seat sealing mechanism and sealing control dress
Put, the valve seat sealing mechanism includes valve component and places the valve support chamber of valve component, and the both sides of the valve body set respectively
There are high-pressure side pressure tappings and low-pressure end pressure tappings, high-pressure side pressure tappings realize the supercharging to valve support chamber, low pressure with valve support chamber UNICOM
End pressure tappings realize the release to valve support chamber with valve support chamber UNICOM, and the seal control device includes valve support chamber being pressurized or being unloaded
The changement that pressure is switched over, drives the control loop of changement operation, the control loop to include control on/off
Power switch and controlling switch, described power switch, controlling switch and changement form series loop, on the valve rod
The executive item in valve body fully closed position touch control switch closure is provided with, when series loop is powered, valve support chamber is by changing
To mechanism and high-pressure side pressure tappings UNICOM；When series loop is powered off, valve support chamber is joined by changement with low-pressure end pressure tappings
It is logical.
By such scheme, when power switch closure, when drive device band movable valve begins to shut off action, this time control
Switch processed is off, and press operation is unloaded by the commutation of changement, and high-pressure side pressure tappings are isolated and low pressure with valve support chamber
End pressure tappings and valve support chamber UNICOM, the pressure of valve support chamber are in a basic balance with the pressure of pipeline, and valve torque power is smaller, can make driving
Device easily closes valve, and when the valve is fully shut, the executive item touch control switch on valve rod closes it, now changes
Obtain electric commutation blower operations to mechanism, high-pressure side pressure tappings and valve support chamber UNICOM and low-pressure end pressure tappings are isolated with valve support chamber, it is high
Pressure medium enters valve support chamber, promotes valve component to press close to spheroid, forms tight sealing；When power switch disconnects, drive device
When driving valve opening, changement dead electricity commutation decompression operation, high-pressure side pressure tappings are isolated and low-pressure end pressure with valve support chamber
Mouthful with valve support chamber UNICOM, the high-pressure medium in valve support chamber is quickly expelled to low-pressure end pressure tappings, the pressure in valve support chamber and outlet
Passage keeps balance, and spheroid pressure reduces, and friction torque reduces, and drive device can easily open ball valve, realize low torque
Open.
It is of the present utility model it is further setting be：The changement is changed including the first magnetic valve, countercylinder and threeway
To valve, first magnetic valve is connected with source of the gas, and the power switch, controlling switch and the first magnetic valve form series loop,
Realize the conducting of source of the gas and countercylinder after energization, three interfaces of the three-way diverter valve respectively with valve support chamber, high-pressure side pressure
Mouth and low-pressure end pressure tappings UNICOM, countercylinder drive the flap of three-way diverter valve to rotate, and realize high-pressure side pressure tappings and valve support chamber
UNICOM or low-pressure end pressure tappings and valve support chamber UNICOM.
By such scheme, when drive device drives ball valve to begin to shut off action, now power switch closure, controls
Switch processed is off, and the first magnetic valve is in normally off, and countercylinder maintains the original state and do not run, the height of three-way diverter valve
The interface of pressure side pressure tappings is isolated with the interface of valve support chamber and the interface of low-pressure end pressure tappings is turned on the interface of valve support chamber, valve seat
The pressure in chamber is in a basic balance with the pressure of pipeline, and ball valve torsional forces is smaller, and drive device can be made easily to close ball valve, when ball valve is complete
During contract fully, the executive item touch control switch on valve rod closes it, and now the first magnetic valve obtains electric commutation ventilation, secondary gas
Cylinder is ventilated, and drives the flap of three-way diverter valve to rotate, and high-pressure side pressure tappings interface and the interface of valve support chamber of three-way diverter valve are led
Logical and low-pressure end pressure tappings isolates with valve support chamber, high-pressure medium enters valve support chamber, promotes valve component to press close to spheroid, and formation is tightly
Sealing, when power switch disconnect, the first magnetic valve power-off after be not turned on, countercylinder is died, countercylinder reset operation, drive three
The flap of logical reversal valve is rotated backward so that the interface of high-pressure side pressure tappings of three-way diverter valve isolate with the interface of valve support chamber and
The interface of low-pressure end pressure tappings is turned on the interface of valve support chamber.
It is of the present utility model it is further setting be：The countercylinder includes housing, drives the flap of three-way diverter valve to rotate
Rotating shaft, drive shaft rotate piston and drive piston reset back-moving spring, cavity, described turn are provided with the housing
Axle locating rotation is arranged in cavity, and is linked with the flap of three-way diverter valve, and the piston is slid in rotating shaft along cavity inner wall
Side, described back-moving spring one end contradicted on the piston side away from rotating shaft, and the other end is contradicted in inner walls, described
Rotating shaft is provided with external gear, and the piston is provided with the tooth bar engaged with external gear near the side of rotating shaft, and the tooth bar is along piston
Glide direction is set.
By such scheme, when countercylinder is ventilated, piston under the influence of air pressure, compression reseting spring, along shell
Internal wall movement, piston is provided with tooth bar, and rotating shaft is provided with external gear, and tooth bar is intermeshed with external gear, drives axis of rotation,
So as to the flap for driving three-way diverter valve is rotated so that high-pressure side pressure tappings and valve support chamber UNICOM and low-pressure end pressure tappings and valve seat
Chamber isolates, and when countercylinder is died, needs to recover deformation in back-moving spring, in the presence of elastic force, drives piston reset, in
It is to drive axis of rotation, so as to drive the flap of three-way diverter valve so that high-pressure side pressure tappings are isolated and low-pressure end with valve support chamber
Pressure tappings and valve support chamber UNICOM.
It is of the present utility model it is further setting be：The executive item is the cam linked with valve rod, and the controlling switch is
Sequential control switch, the cam touches closure or the disconnection for coordinating and realizing sequential control switch with the mechanical contact of sequential control switch.
By such scheme, when valve rod turns to ball valve completely closed state, cam touches the machinery of sequential control switch
Contact, sequential control switch closure, realizes power-on servicing；Cam does not touch the mechanical contact of sequential control switch, and sequential control switch disconnects.
It is of the present utility model it is further setting be：The drive device includes the master cylinder and the regulation that drive valve rod to rotate
Master cylinder carries out the adjusting part of commutation rotation, and the adjusting part includes the second magnetic valve and two-position five-way Pneumatic valve, described
Two-position five-way Pneumatic valve includes the first input port, the second input port, the first delivery outlet and the second delivery outlet, second magnetic valve
It is connected with source of the gas, the first input port of the two-position five-way Pneumatic valve is connected with source of the gas, second magnetic valve and two-position five-way
The second input port connection of Pneumatic valve, second magnetic valve and power switch form series loop, realized after energization source of the gas with
The conducting of the second input port of two-position five-way Pneumatic valve, first delivery outlet and the second delivery outlet respectively with the company of master cylinder
Connect, source of the gas and the conducting of the first delivery outlet or source of the gas and the second delivery outlet turn on the forward or reverse for realizing master cylinder.
By such scheme, the first input port of two-position five-way Pneumatic valve is connected with source of the gas, power switch closure, the
Two solenoid valves are turned on, and the gas of source of the gas enters two-position five-way Pneumatic valve, two by the second magnetic valve by the second input port
Five logical Pneumatic valves are commutated, and master cylinder band ovable valve stem is rotated, and realizes the closed procedure of ball valve, and power switch disconnects, the second electricity
Magnet valve is not turned on, and the gas of source of the gas directly enters two-position five-way Pneumatic valve by the first input port, and two-position five-way Pneumatic valve is not carried out
Commutation, master cylinder band ovable valve stem is rotated backward, and realizes the opening operation of ball valve.
It is of the present utility model further set be：The mouth of pipe of the source of the gas is additionally provided with filtering pressure reducing valve.
By such scheme, filtering pressure reducing valve is set in the mouth of pipe of source of the gas, the pressure for reducing source of the gas reduces and turns round
Square.
The utility model is further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the pneumatic ball valve closed mode schematic diagram with automatic sealing function in the utility model embodiment；
Fig. 2 is the pneumatic ball valve open mode schematic diagram with automatic sealing function in the utility model embodiment；
Fig. 3 is countercylinder structural representation；
Fig. 4 is adjusting part connection diagram.
Specific embodiment
As Figure 1-4, a kind of pneumatic ball valve with automatic sealing function, including valve body 1, valve element 2, valve rod 3, driving
Drive device 4, valve seat sealing mechanism 5 and seal control device 6 that valve rod 3 is rotated, valve seat sealing mechanism 5 include valve component
51 and the valve support chamber 52 of valve component 51 is placed, valve body 1 is respectively provided on two sides with high-pressure side pressure tappings 11 and low-pressure end pressure
Mouth 12, is additionally provided with the valve support chamber passage 53 for being turned on valve support chamber 52 and being connected, high-pressure side pressure tappings 11 and valve support chamber 52 on valve body 1
The logical supercharging realized to valve support chamber 52, low-pressure end pressure tappings 12 realize the release to valve support chamber 52, sealing with the UNICOM of valve support chamber 52
Control device 6 includes the changement 61 that can be pressurized to valve support chamber 52 or release is switched over, and drives the operation of changement 61
Control loop 62, control loop 62 includes the power switch 621 and controlling switch 622 of control on/off, and out-put supply is
24VDC/220DC, controlling switch 622 is switched for a kind of cis-position, can be a common flame-proof switch, is set protective housing and is subject to
Protection, power switch 621, controlling switch 622 and changement 61 form series loop, and valve rod 3 is provided with and is closed completely in valve body
The executive item 7 of the closure of closed position touch control switch 622, when series loop is powered, valve support chamber 52 by changement 61 and
The UNICOM of high-pressure side pressure tappings 11；When series loop is powered off, valve support chamber 52 is by changement 61 and low-pressure end pressure tappings 12
It is logical.
Technical solutions of the utility model, the changement can be realized equally using a high pressure two-position four-way solenoid valve
Control.Changement 61 includes the first magnetic valve 611, countercylinder 8 and three-way diverter valve 612, and the first magnetic valve 611 is connected
Have a source of the gas 9, power switch 621,622 and first magnetic valve of controlling switch 611 form series loop, realized after energization source of the gas 9 with
The conducting of countercylinder 8, three interfaces of three-way diverter valve 612 take with valve support chamber 52, high-pressure side pressure tappings 11 and low-pressure end respectively
The UNICOMs of Ya Kou 12, countercylinder 8 drives the flap 6121 of three-way diverter valve 612 to rotate, and realizes high-pressure side pressure tappings 11 and valve support chamber
52 UNICOMs or low-pressure end pressure tappings 12 and the UNICOM of valve support chamber 52.
In the present embodiment, countercylinder 8 includes the rotating shaft 81 for driving the flap 6121 of three-way diverter valve 612 to rotate, drives
Piston 82, the back-moving spring 83 and housing 84 of the driving reset of piston 82 that rotating shaft 81 is rotated, cavity 85 is provided with housing 84, is turned
The locating rotation of axle 81 is arranged on the medium position of cavity 85, and the flap 6121 of three-way diverter valve 612 can be driven to rotate, piston 82
Be two, its respectively along cavity 85 wall slip in the both sides of rotating shaft 81, back-moving spring 83 is two, and the one end of back-moving spring 83 is supported
Touch on the side of piston 82 away from rotating shaft 81, the other end is contradicted on the inwall of housing 84, and rotating shaft 81 is provided with external gear 86, it is living
Plug 82 is provided with the tooth bar 87 engaged with external gear 86 near the side of rotating shaft 81, and tooth bar 87 is set along the glide direction of piston 82.Should
Piston 82 is it can also be provided that one, and a back-moving spring 83, can also drive rotating shaft 81 to rotate.
Technical solutions of the utility model, the executive item 7 coordinates with switch, Ke Yishi：Switch is set on circuit boards, uses
The turned position of optoelectronic induction executive item, so as to realize the closure of switch.In the present embodiment, executive item 7 is to be linked with valve rod 3
Cam, controlling switch 622 is sequential control switch, and the mechanical contact 6221 of cam and sequential control switch touches cooperation and realizes sequential control switch
Closure or disconnection.
In the present embodiment, drive device 4 includes that the master cylinder 41 for driving valve rod 3 to rotate and regulation master cylinder 41 are carried out
Commutate the adjusting part 42 for rotating, and adjusting part 42 includes the second magnetic valve 421 and two-position five-way Pneumatic valve 422, two-position five-way
Pneumatic valve 422 includes the first input port 4221, the second input port 4222, the first delivery outlet 4223 and the second delivery outlet 4224, the
Two magnetic valves 421 are connected with source of the gas 9, and the first input port 4221 of two-position five-way Pneumatic valve 422 is connected with source of the gas 9, the second electromagnetism
Valve 421 is connected with the second input port 4222 of two-position five-way Pneumatic valve 422, and the second magnetic valve 421 forms string with power switch 621
Connection loop, realizes the conducting of source of the gas 9 and the second input port 4222 of two-position five-way Pneumatic valve 422, the first delivery outlet after energization
4223 and second delivery outlet 4224 respectively with the connection of master cylinder 41, the delivery outlet 4223 of source of the gas 9 and first turns on or source of the gas 9 and
Two delivery outlet 4224 turns on the forward or reverse for realizing master cylinder 41.
In the present embodiment, source of the gas 9 is a total ventilation source of the gas, and it passes through pipeline and is connected with each part, and solid line is pipe
Road, actual situation line is connected for circuit, and filtering pressure reducing valve 43 is additionally provided with the mouth of pipe of source of the gas 9.Source of the gas multiple can also be separated
Source of the gas.
Claims (6)
1. the driving dress that a kind of pneumatic ball valve with automatic sealing function, including valve body, valve element, valve rod, driving valve rod are rotated
Put, valve seat sealing mechanism and seal control device, the valve seat sealing mechanism includes valve component and places valve component
Valve support chamber, the valve body is respectively provided on two sides with high-pressure side pressure tappings and low-pressure end pressure tappings, high-pressure side pressure tappings and valve seat
Chamber UNICOM realizes the supercharging to valve support chamber, and low-pressure end pressure tappings realize the release to valve support chamber, the sealing with valve support chamber UNICOM
Control device includes the changement that can be switched over to valve support chamber supercharging or release, drives the control of changement operation to return
Road, it is characterised in that：The control loop includes the power switch and controlling switch of control on/off, and described power supply is opened
Close, controlling switch and changement form series loop, the valve rod is provided with to be opened in the shake-up control of valve body fully closed position
The executive item for closing is closed, when series loop is powered, valve support chamber is by changement and high-pressure side pressure tappings UNICOM；When connecting back
When road powers off, valve support chamber is by changement and low-pressure end pressure tappings UNICOM.
2. the pneumatic ball valve with automatic sealing function according to claim 1, it is characterised in that：The changement bag
The first magnetic valve, countercylinder and three-way diverter valve are included, first magnetic valve is connected with source of the gas, the power switch, control
Switch and the first magnetic valve form series loop, and the conducting of source of the gas and countercylinder, the three of the three-way diverter valve are realized after energization
Individual interface respectively with valve support chamber, high-pressure side pressure tappings and low-pressure end pressure tappings UNICOM, countercylinder drive three-way diverter valve flap
Rotate, realize high-pressure side pressure tappings with valve support chamber UNICOM or low-pressure end pressure tappings and valve support chamber UNICOM.
3. the pneumatic ball valve with automatic sealing function according to claim 2, it is characterised in that：The countercylinder includes
The reset of rotating shaft, the piston of drive shaft rotation and driving piston reset that housing, the flap of driving three-way diverter valve are rotated
Spring, is provided with cavity in the housing, the rotating shaft locating rotation is arranged in cavity, and joins with the flap of three-way diverter valve
Dynamic, the piston is slid in the side of rotating shaft along cavity inner wall, and described back-moving spring one end is contradicted in the piston side away from rotating shaft
On face, the other end is contradicted in inner walls, and the rotating shaft is provided with external gear, the piston near the side of rotating shaft be provided with
The tooth bar of external gear engagement, the tooth bar is set along piston glide direction.
4. the pneumatic ball valve with automatic sealing function according to claim 1 or 2 or 3, it is characterised in that：The execution
Part is the cam linked with valve rod, and the controlling switch is sequential control switch, and the cam touches with the mechanical contact of sequential control switch
Closure or the disconnection of sequential control switch are realized in cooperation.
5. the pneumatic ball valve with automatic sealing function according to Claims 2 or 3, it is characterised in that：It is described to drive dress
Putting the master cylinder including driving valve rod to rotate and regulation master cylinder carries out the adjusting part of commutation rotation, the adjusting part bag
The second magnetic valve and two-position five-way Pneumatic valve are included, the two-position five-way Pneumatic valve includes the first input port, the second input port, first
Delivery outlet and the second delivery outlet, second magnetic valve are connected with source of the gas, the first input port of the two-position five-way Pneumatic valve with
Source of the gas is connected, and second magnetic valve is connected with the second input port of two-position five-way Pneumatic valve, second magnetic valve and power supply
Switch forms series loop, and the conducting of source of the gas and the second input port of two-position five-way Pneumatic valve is realized after energization, and described first is defeated
Outlet and the second delivery outlet are turned on or source of the gas and the conducting of the second delivery outlet with the connection of master cylinder, source of the gas and the first delivery outlet respectively
Realize the forward or reverse of master cylinder.
6. the pneumatic ball valve with automatic sealing function according to claim 2, it is characterised in that：The mouth of pipe of the source of the gas
It is additionally provided with filtering pressure reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239875.8U CN206280524U (en) | 2016-11-18 | 2016-11-18 | pneumatic ball valve with automatic sealing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621239875.8U CN206280524U (en) | 2016-11-18 | 2016-11-18 | pneumatic ball valve with automatic sealing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280524U true CN206280524U (en) | 2017-06-27 |
Family
ID=59082520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621239875.8U Withdrawn - After Issue CN206280524U (en) | 2016-11-18 | 2016-11-18 | pneumatic ball valve with automatic sealing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641314A (en) * | 2016-11-18 | 2017-05-10 | 超达阀门集团股份有限公司 | Pneumatic ball valve with automatic sealing function |
| CN113513699A (en) * | 2021-06-30 | 2021-10-19 | 广东电网能源发展有限公司 | Gas storage device |
-
2016
- 2016-11-18 CN CN201621239875.8U patent/CN206280524U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641314A (en) * | 2016-11-18 | 2017-05-10 | 超达阀门集团股份有限公司 | Pneumatic ball valve with automatic sealing function |
| CN106641314B (en) * | 2016-11-18 | 2019-05-28 | 超达阀门集团股份有限公司 | Pneumatic ball valve with automatic sealing function |
| CN113513699A (en) * | 2021-06-30 | 2021-10-19 | 广东电网能源发展有限公司 | Gas storage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170627 Effective date of abandoning: 20190528 |