CN209262257U - A kind of lowest liquid level valve - Google Patents
A kind of lowest liquid level valve Download PDFInfo
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- CN209262257U CN209262257U CN201821958036.0U CN201821958036U CN209262257U CN 209262257 U CN209262257 U CN 209262257U CN 201821958036 U CN201821958036 U CN 201821958036U CN 209262257 U CN209262257 U CN 209262257U
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Abstract
The utility model discloses a kind of lowest liquid level valve, including main valve structure and gas control water management structure, the main valve structure includes valve component and water vat component, the gas control water management structure includes two logical high-pressure ball valves, three-way connection, water reversal valve, solenoid directional control valve and three-way ball valve, the valve body irrigating gate is connected to described two logical high-pressure ball valves, the three-way connection respectively with described two logical high-pressure ball valves, water reversal valve is connected with the three-way ball valve, the two logical high-pressure ball valve is connected to by the three-way ball valve with the lower cylinder chamber formula able to turn on or off, the water reversal valve is connect with the solenoid directional control valve by pneumatic pipeline, the lower cylinder chamber is equipped with water vat irrigating gate.A kind of lowest liquid level valve of the utility model, compact-sized, it safeguards that operability is higher under same working condition, and valve runs fast response time, and maintenance replacement vulnerable part is more convenient, quick, reduces maintenance cost.
Description
Technical field
The utility model relates to valve technology fields, more particularly to a kind of lowest liquid level valve.
Background technique
Lowest liquid level valve is the critical elements in pump-accumulator (also known as pressure pan) high-pressure water descaling system, it is gas-
The high-risk system of water mixing provides reliable safety guarantee.
Lowest liquid level valve is to pass through control water commutation according to presetting signal control solenoid directional control valve commutation under normal conditions
Valve drives the movement of water vat piston, thus the opening and closing of control valve.When valve is closed, by connection accumulator side cavity (epicoele)
Fluid power act in valve rod valve port disc face and the water of the piston upper chamber active force downward to piston guarantees to be closed, close simultaneously
Buffering can be formed by the liquid for being clipped in valve port disk and valve base chamber by closing moment, to prevent the percussion of quick closedown from damaging valve
Door.When valve is opened, the pressure of connection pump side cavity (cavity of resorption) must be promoted to the pressure close to accumulator side (epicoele),
It can just be opened by the hydraulic thrust of piston cavity of resorption.
But at the scene in actual use, (such as: just when installation, route does not have sometimes restricted use condition on site
It connects；Again or encounter power failure or route and break down), thus cause solenoid directional control valve can not obtain it is electric worked normally, but
It is in actual field use process, we often encounter when not having electric signal, but have to allow using lowest liquid level valve
It is worked normally.
Utility model content
The utility model is completed to solve in the prior art insufficient, and the purpose of the utility model is to provide one
Kind lowest liquid level valve, compact-sized, it safeguards that operability is higher under same working condition, and valve runs response speed
Fastly, maintenance replacement vulnerable part is more convenient, quick, reduces maintenance cost.
A kind of lowest liquid level valve of the utility model, including main valve structure and gas control water management structure, the gas control water control
Structure processed is detachably fixed the outside portion for being connected to the main valve structure, and the main valve structure includes valve component and water vat group
Part, the valve component include valve body, valve seat, valve rod, valve stem sleeve, guiding valve pocket and valve deck, and the valve seat is located at described lead
Enclosed in the valve chamber set to valve pocket and the valve body, and the valve seat is sealedly and fixedly connected with the valve body, the valve seat with
The valve rod can contact formula gluing, sealing, and the valve chamber includes uuper valve chamber and lower valve chamber, and the uuper valve chamber is connected to cans picking mouth, institute
It states lower valve chamber and is connected to pumping hole is connect, the lower valve chamber is equipped with valve body irrigating gate, and the lower valve chamber passes through the valve body irrigating gate
With the gas control water management fabric connectivity, the valve rod passes through the water vat component from the bottom to top, and the valve rod extends to institute
Water vat component external is stated, the valve rod top is equipped with detection device, and the valve stem sleeve removable seal is sheathed on the valve rod,
And the valve stem sleeve is connect with the guiding valve pocket removable seal, the guiding valve pocket removable seal is connected to the valve deck
Lower part, the valve deck is detachably fixed with the water vat component and connect, and the water vat component includes cylinder body, piston and cylinder cap,
The piston removable seal is connected to the inner cavity of the cylinder body, and the valve rod middle top surface offsets with the piston lower surface,
The upper inside wall face of the piston upper surface, cylinder cap lower surface and the cylinder body, which is enclosed, is set as upper cylinder half chamber, in the lower part of the cylinder body
Wall surface, piston lower surface and guide valve set upper surface enclose and are set as lower cylinder chamber, and the valve rod center is equipped with limbers, the valve
Bar is connected to by the limbers with the upper cylinder half chamber, and the lower cylinder chamber is equipped with water vat irrigating gate, the gas control water management knot
Structure includes two logical high-pressure ball valves, three-way connection, water reversal valve, solenoid directional control valve and three-way ball valve, the valve body irrigating gate and institute
State two logical high-pressure ball valves connections, the three-way connection respectively with described two logical high-pressure ball valves, water reversal valve and the three-way ball valve
Connection, the two logical high-pressure ball valve are connected by the three-way ball valve and the water vat irrigating gate and the lower cylinder chamber formula able to turn on or off
Logical, the water reversal valve is connect with the solenoid directional control valve by pneumatic pipeline, and the water reversal valve is equipped with drainpipe.
A kind of lowest liquid level valve of the utility model may also is that
Between the valve body irrigating gate and the two logical high-pressure ball valve be equipped with filter, the filter respectively with the valve
Body irrigating gate is connected to described two logical high-pressure ball valves.
The valve rod includes that successively fixation or integrally formed upper valve rod, middle valve rod and lower valve rod, the upper valve rod pass through
Outside the water vat component, and the upper valve rod is connect with the detection device, and the lower valve rod lower end surface is equipped with cone table, described
Frustum body sidewall and the valve seat medial surface can contact formula palette, be arranged with the guiding valve pocket, institute on the middle valve rod
Valve rod is stated to stretch out outside the guiding valve pocket.
The stepped increase of the outer diameter of the upper valve rod, middle valve rod and the lower valve rod.
The detection device includes detection contact block and electronic detector, and the detection contact block is removably fixed in described
Valve rod top, the electronic detector are connect with the detection contact block.
The three-way ball valve is equipped with handle, and the handle is removably fixed on the three-way ball valve.
A kind of lowest liquid level valve of the utility model, including main valve structure and gas control water management structure, the gas control water control
Structure processed is detachably fixed the outside portion for being connected to the main valve structure, and the main valve structure includes valve component and water vat group
Part, the valve component include valve body, valve seat, valve rod, valve stem sleeve, guiding valve pocket and valve deck, and the valve seat is located at described lead
Enclosed in the valve chamber set to valve pocket and the valve body, and the valve seat is sealedly and fixedly connected with the valve body, the valve seat with
The valve rod can contact formula gluing, sealing, and the valve chamber includes uuper valve chamber and lower valve chamber, and the uuper valve chamber is connected to cans picking mouth, institute
It states lower valve chamber and is connected to pumping hole is connect, the lower valve chamber is equipped with valve body irrigating gate, and the lower valve chamber passes through the valve body irrigating gate
With the gas control water management fabric connectivity, the valve rod passes through the water vat component from the bottom to top, and the valve rod extends to institute
Water vat component external is stated, the valve rod top is equipped with detection device, and the valve stem sleeve removable seal is sheathed on the valve rod,
And the valve stem sleeve is connect with the guiding valve pocket removable seal, the guiding valve pocket removable seal is connected to the valve deck
Lower part, the valve deck is detachably fixed with the water vat component and connect, and the water vat component includes cylinder body, piston and cylinder cap,
The piston removable seal is connected to the inner cavity of the cylinder body, and the valve rod middle top surface offsets with the piston lower surface,
The upper inside wall face of the piston upper surface, cylinder cap lower surface and the cylinder body, which is enclosed, is set as upper cylinder half chamber, in the lower part of the cylinder body
Wall surface, piston lower surface and guide valve set upper surface enclose and are set as lower cylinder chamber, and the valve rod center is equipped with limbers, the valve
Bar is connected to by the limbers with the upper cylinder half chamber, and the lower cylinder chamber is equipped with water vat irrigating gate, the gas control water management knot
Structure includes two logical high-pressure ball valves, three-way connection, water reversal valve, solenoid directional control valve and three-way ball valve, the valve body irrigating gate and institute
State two logical high-pressure ball valves connections, the three-way connection respectively with described two logical high-pressure ball valves, water reversal valve and the three-way ball valve
Connection, the two logical high-pressure ball valve are connected by the three-way ball valve and the water vat irrigating gate and the lower cylinder chamber formula able to turn on or off
Logical, the water reversal valve is connect with the solenoid directional control valve by pneumatic pipeline, and the water reversal valve is equipped with drainpipe.
In this way, in normal work, when solenoid directional control valve can work normally and when stable gas pressure, three-way ball valve handle is revolved
It goes to see Fig. 1 (making F pipeline connection, E pipeline is closed), high pressure water is entered in lower valve chamber by connecing pumping hole, then passes through the logical of valve rod
The upper cylinder half that water hole enters water vat component is intracavitary, and the intracavitary water of upper cylinder half forms downward hydraulic coupling to piston.Work as solenoid directional control valve
High pressure water when not obtaining valve opening signal in power failure state, lower valve chamber by valve body irrigating gate at water reversal valve by every
Disconnected, lower cylinder chamber is emptied by water reversal valve, drainpipe, so that the hydraulic coupling for keeping upper cylinder half intracavitary is greater than the hydraulic coupling of lower cylinder chamber, valve
Total resultant force that bar is subject to fits closely stem bottom with valve base sealing downwards, so that valve be made to be in close state, i.e. valve
In original state.It commutates after solenoid directional control valve receives valve opening signal, the commutation of water reversal valve, lower valve is controlled by pneumatic pipeline
Intracavitary water passes through pipeline, two logical high-pressure ball valves, three-way connection, water reversal valve, three-way ball by valve body irrigating gate by connecing pumping hole
It is intracavitary that valve enters lower cylinder.At this point, the lower intracavitary high pressure water of cylinder forms upward hydraulic coupling to piston, total resultant force on valve rod is upwards
It pushes valve rod to run up, valve rod is made to be gradually distance from valve seat, valve is in the open state at this time, enters the water in lower valve chamber upper
In valve chamber, and entered in tank by cans picking mouth.It commutates after the pass valve signal that water reversal valve receives solenoid directional control valve, lower valve chamber
Interior high pressure water is separated at water reversal valve by valve body irrigating gate, and the intracavitary water of lower cylinder passes through the drainpipe on water reversal valve
The intracavitary water of lower cylinder is discharged into trench, to make the total resultant force of valve rod downwards, valve rod return, stem bottom is bonded with valve base sealing,
To make valve be in close state.And so on realize the switch control of valve.Solenoid directional control valve controls the commutation of water reversal valve,
The commutation control of diversion, draining is carried out to the lower cylinder chamber of water vat component.
When solenoid directional control valve can not work normally or air pressure is unstable, and need to be implemented valve opening operation when, by three-way ball
For the rotatable handle of valve to see Fig. 1 (making E pipeline connection, F pipeline is closed) state, the valve body irrigating gate passes through pipeline, through two
Logical high-pressure ball valve and the three-way connection are connected；The three-way connection is connected to three-way ball valve, and three-way ball valve is drawn by water vat
The mouth of a river is connected to lower cylinder chamber, high pressure water by three-way ball valve, water vat irrigating gate is introduced into lower cylinder intracavitary, the lower intracavitary high pressure water pair of cylinder
Piston forms upward hydraulic coupling, and always pushing up valve rod with joint efforts and run up on valve rod makes valve rod be gradually distance from valve seat, into
And realize the breakdown action of valve, enter the water in lower valve chamber in uuper valve chamber, so that the water in uuper valve chamber be made to pass through cans picking mouth
Into in tank.When needing that valve is turned off manually, the intracavitary water of lower cylinder enters drainpipe by three-way ball valve, water reversal valve, complete
At draining, realizes the closing of valve, uuper valve chamber is isolated with lower valve chamber.A kind of lowest liquid level valve of the utility model, structure
Compact, it safeguards that operability is higher under same working condition, and valve runs fast response time, and maintenance replacement vulnerable part is more
For convenience, quick, reduce maintenance cost.
Detailed description of the invention
Fig. 1 is a kind of top view of lowest liquid level valve of the utility model.
Fig. 2 is the A-A cross-sectional view in Fig. 1.
Fig. 3 is a kind of lowest liquid level valve left view of the utility model.
Fig. 4 is a kind of lowest liquid level valve main view of the utility model.
100 ... main valve structures
101 ... valve body 102 ... lower valve chamber 103 ... valve seats
104 ... uuper valve chamber 105 ... valve stem sleeve 106 ... valve rods
107 ... guiding valve pocket 108 ... valve deck 109 ... cylinder bodies
110 ... piston 111 ... cylinder cap 112 ... electronic detectors
113 ... the lower cylinder chambers of contact block 114 ... upper cylinder half chamber 115 ...
116 ... cone table 117 ... valve body irrigating gates 118 ... connect pumping hole
119 ... cans picking mouth 120 ... water vat irrigating gate 121 ... limbers
200 ... gas control water management structures
Logical high-pressure ball valve 203 ... the three-way connection of 201 ... filter 202 ... two
204 ... water reversal valve 205 ... solenoid directional control valve 206 ... three-way ball valves
207 ... drainpipe 208 ... handles
Specific embodiment
Fig. 1 to Fig. 4 with reference to the accompanying drawing is described in further detail a kind of lowest liquid level valve of the utility model.
A kind of lowest liquid level valve of the utility model please refers to Fig. 1-4, including main valve structure 100 and gas control water management knot
Structure 200, the gas control water management structure 200 are detachably fixed the outside portion for being connected to the main valve structure 100, the main valve knot
Structure 100 include valve component and water vat component, the valve component include valve body, valve seat 103, valve rod 106, valve stem sleeve 105,
It is oriented to valve pocket 107 and valve deck 108, the valve seat 103 is located at the guiding valve pocket 107 and the valve body encloses in the valve chamber set,
The valve seat 103 is sealedly and fixedly connected with the valve body, and the valve seat 103 can contact formula gluing, sealing with the valve rod 106,
The valve chamber includes uuper valve chamber 104 and lower valve chamber 102, and the uuper valve chamber 104 is connected to high-pressure water tank, the lower valve chamber 102 with
High-pressure hydraulic pump connection, the lower valve chamber 102 are equipped with 101 irrigating gate of valve body, and the lower valve chamber 102 passes through the valve body irrigating gate
117 are connected to the gas control water management structure 200, and the valve rod 106 passes through the valve component, the valve rod from the bottom to top
106 extend to the water vat component external, and 106 top of valve rod is equipped with detection device, and 105 removable seal of valve stem sleeve is arranged
In on the valve rod 106, the valve stem sleeve 105 is connect with 107 removable seal of guiding valve pocket, the guiding valve pocket 107
Removable seal is connected to the lower part of the valve deck 108, and the valve deck 108 is detachably fixed with the water vat component and connect, institute
Stating water vat component includes cylinder body 109, piston 110 and cylinder cap 111, and 110 removable seal of piston is connected to the cylinder body 109
Inner cavity, 106 middle top surface of valve rod offsets with 110 lower surface of piston, under 110 upper surface of piston, cylinder cap 111
Surface and the upper inside wall face of the cylinder body 109, which are enclosed, is set as upper cylinder half chamber 114, the lower inner wall face of the cylinder body 109, piston 110
Lower surface and 107 upper surface of guiding valve pocket, which are enclosed, is set as lower cylinder chamber 115, and 106 center of valve rod is equipped with limbers 121, institute
It states valve rod 106 to be connected to by the limbers 121 with the upper cylinder half chamber 114, the lower cylinder chamber 115 is equipped with water vat irrigating gate
120, the gas control water management structure 200 includes two logical high-pressure ball valves 202, three-way connection 203, water reversal valve 204, electromagnetic switch
Valve 205 and three-way ball valve 206, the valve body irrigating gate 117 are connected to described two logical high-pressure ball valves 202, the three-way connection 203
It is connect respectively with described two logical high-pressure ball valves 202, water reversal valve 204 and the three-way ball valve 206, the two logical high-pressure ball valve
202 can realize that the on-off of runner is connect with the lower cylinder chamber 115 by the three-way ball valve 206, the two logical high-pressure ball valve 202
It can be realized by the water reversal valve 204 and the three-way ball valve 206 and the water vat irrigating gate 120 with the lower cylinder chamber 115
The on-off of runner connects., the water reversal valve 204 connect with the solenoid directional control valve 205, and the water reversal valve 204 is equipped with
Drainpipe 207.
In this way, in normal work, when solenoid directional control valve 205 can work normally and when stable gas pressure, by three-way ball valve 206
Handle 208 rotate to see Fig. 1 (make F pipeline connection, E pipeline close), high pressure water enters lower valve chamber 102 by connecing pumping hole 118
It is interior, then entered in the upper cylinder half chamber 114 of water vat component by the limbers 121 of valve rod 106, the water in upper cylinder half chamber 114 is to piston
110 form downward hydraulic coupling.When solenoid directional control valve 205 does not obtain valve opening signal in power failure state, lower valve chamber 102
High pressure water is separated at water reversal valve 204 by valve body irrigating gate 117, and lower cylinder chamber 115 passes through water reversal valve 204, drainpipe
207 emptyings, so that hydraulic coupling in upper cylinder half chamber 114 be made to be greater than the hydraulic coupling of lower cylinder chamber 115, valve rod 106 be subject to it is total with joint efforts to
Under 106 bottom of valve rod and valve seat 103 is sealed fit closely, so that valve be made to be in close state, i.e., valve is in initial shape
State.
It commutates after solenoid directional control valve 205 receives valve opening signal, water reversal valve commutation 204 is controlled by pneumatic pipeline,
Water in lower valve chamber 102 passes through pipeline, two logical high-pressure ball valves 202, three-way connection by valve body irrigating gate 117 by connecing pumping hole 118
203, water reversal valve commutation 204, three-way ball valve 206 enter in lower cylinder chamber 115.At this point, the high pressure water in lower cylinder chamber 115 is to work
Plug 110 forms upward hydraulic coupling, and always pushing up valve rod 106 with joint efforts and run up on valve rod 106 makes valve rod 106 gradually
Far from valve seat 103, valve is in the open state at this time, so that the water in lower valve chamber 102 be made to enter in uuper valve chamber, and passes through cans picking
Mouth enters in tank.It commutates after the pass valve signal that water reversal valve 204 receives solenoid directional control valve 205, the high pressure in lower valve chamber 102
Water is separated at water reversal valve 204 by valve body irrigating gate 117, and the water in lower cylinder chamber 115 passes through water reversal valve 204, draining
Water in lower cylinder chamber 115 is discharged into trench by pipe 207, thus keep total resultant force of valve rod 106 downward, 106 return of valve rod, valve rod 106
Bottom and 103 gluing, sealing of valve seat, so that valve be made to be in close state.And so on realize the switch control of valve.Electromagnetism
Reversal valve 205 controls water reversal valve 204 and commutates, and the commutation control of diversion, draining is carried out to the lower cylinder chamber 115 of water vat component.
When solenoid directional control valve 205 can not work normally or air pressure is unstable, and need to be implemented valve opening operation when, at this moment will
The handle 208 of three-way ball valve 206 is rotated to see Fig. 1 (making E pipeline connection, F pipeline is closed) state, the valve body irrigating gate
117 are connected by pipeline, Jing Liangtong high-pressure ball valve 202 and the three-way connection 203；The three-way connection 203 and three-way ball
Valve 206 is connected to, and three-way ball valve 206 is connected to by water vat irrigating gate 120 with lower cylinder chamber 115, high pressure water pass through three-way ball valve 206,
Water vat irrigating gate 120 is introduced into lower cylinder chamber 115, and high pressure water forms upward hydraulic coupling, valve rod to piston in lower cylinder chamber 115
Always pushing up valve rod 106 with joint efforts and run up on 106 makes valve rod 106 be gradually distance from valve seat 103, and then realizes valve
Breakdown action.When needing to be turned off manually valve, the water in cylinder chamber 115 by three-way ball valve 206, water reversal valve 204 enters row at present
Water pipe 207 completes draining, realizes the closing of valve.A kind of lowest liquid level valve of the utility model, it is compact-sized, same
Working condition under its safeguard operability it is higher, valve run fast response time, maintenance replacement vulnerable part it is more convenient, fast
Victory reduces maintenance cost.
A kind of lowest liquid level valve of the utility model, please refers to Fig. 1-4, on the basis of the technical solution described in front also
It may is that and be equipped with filter 201, the filter 201 between the valve body irrigating gate 117 and the two logical high-pressure ball valve 202
It is connected to respectively with the valve body irrigating gate 117 and the two logical high-pressure ball valve 202.In this way, setting filter 201, it can be effective
The water in lower valve chamber 102 is filtered, can effectively filter out impurities in water, thus improve liquid elevating valve use the longevity
Life.Further preferred embodiment is: the valve rod 106 includes upper valve rod 106, middle valve rod 106 and lower valve rod 106, the upper valve
Bar 106 passes through outside the water vat component, and connect with the detection device, and 106 lower end surface of lower valve rod is equipped with cone table
116, the cone table 116 can contact formula gluing, sealing with 103 medial surface of valve seat, be arranged on the middle valve rod 106
Guiding valve pocket 107 is stated, the middle valve rod 106 stretches out outside the guiding valve pocket 105.Further preferred embodiment is: the upper valve
The stepped increase of the outer diameter of bar 106, middle valve rod 106 and the lower valve rod 106.In this way, the valve rod 106 be from top to bottom by
The rod structure that upper valve rod 106, middle valve rod 106 and lower valve rod 106 form；The upper valve rod 106, middle valve rod 106 and lower valve rod 106
The ladder-like increase of outer diameter, the lower end surface of the lower valve rod 106 is the guide surface of back taper；The up and down motion of the valve rod 106
The cooperation of the guide surface of the lower end surface of the lower valve rod 106 and the cone table 116 of the valve seat 103 is set to realize the main valve structure
100 turn off or on.It may also is that the detection device includes detection contact block 113 and electronic detector 112, the inspection
It surveys contact block 113 and is removably fixed in 106 top of valve rod, the electronic detector 112 connects with the detection contact block 113
It connects.In this way, the detection device include be arranged in the top of the upper valve rod 106 detection contact block 113 and with the detection
The electronic detector 112 that contact block 113 cooperates and is fixed on the cylinder cap 111, can be by detecting contact block 113
The open and close location status of valve is effectively detected with electronic detector 112, it is ensured that production safety is reliable.It may also is that described
Three-way ball valve 206 is equipped with handle 208, and the handle 208 is removably fixed on the three-way ball valve 206.In this way, working as electromagnetism
When reversal valve 205 can not work, three-way ball valve 206, the water flow stream of switching control pipeline can be controlled by rotational handle 208
To, directly valve body irrigating gate 117 is connected to or is disconnected with lower cylinder chamber 115 around boiled water reversal valve, realize valve manual open and close behaviour
Make, can be in the case where solenoid directional control valve 205 break down, it can be with normal use liquid elevating valve.
It is above-mentioned that only several specific embodiments in the utility model are illustrated, but can not be as the utility model
Protection scope, equivalent change or modification or equal proportion amplification or contracting made by all design spirits according in the utility model
It is small etc., it is deemed to fall the protection scope of the utility model.
Claims (6)
1. a kind of lowest liquid level valve, it is characterised in that: including main valve structure and gas control water management structure,
The gas control water management structure is detachably fixed the outside portion for being connected to the main valve structure,
The main valve structure includes valve component and water vat component,
The valve component includes valve body, valve seat, valve rod, valve stem sleeve, guiding valve pocket and valve deck, and the valve seat is located at described lead
It is enclosed in the valve chamber set to valve pocket and the valve body, the valve seat is sealedly and fixedly connected with the valve body, the valve seat and institute
Stating valve rod can contact formula gluing, sealing, and the valve chamber includes uuper valve chamber and lower valve chamber, and the uuper valve chamber is connected to cans picking mouth, described
Lower valve chamber is connected to pumping hole is connect, the lower valve chamber be equipped with valve body irrigating gate, the lower valve chamber by the valve body irrigating gate with
The gas control water management fabric connectivity, the valve rod pass through the water vat component from the bottom to top, and the valve rod extends to the water
Outside cylinder component, the valve rod top is equipped with detection device, and the valve stem sleeve removable seal is sheathed on the valve rod, described
Valve stem sleeve is connect with the guiding valve pocket removable seal, and the guiding valve pocket removable seal is connected under the valve deck
Portion, the valve deck are detachably fixed with the water vat component and connect,
The water vat component includes cylinder body, piston and cylinder cap, and the piston removable seal is connected to the inner cavity of the cylinder body, institute
Valve rod middle top surface is stated to offset with the piston lower surface, the piston upper surface, cylinder cap lower surface and the cylinder body top
Inner wall, which encloses, is set as upper cylinder half chamber, and lower inner wall face, the piston lower surface of the cylinder body are enclosed with guide valve set upper surface to be set as
Lower cylinder chamber, the valve rod center are equipped with limbers, and the valve rod is connected to by the limbers with the upper cylinder half chamber, the lower cylinder
Chamber is equipped with water vat irrigating gate,
The gas control water management structure includes two logical high-pressure ball valves, three-way connection, water reversal valve, solenoid directional control valve and three-way ball
Valve, the valve body irrigating gate are connected to described two logical high-pressure ball valves, the three-way connection respectively with described two logical high-pressure ball valves, water
Reversal valve is connected with the three-way ball valve, and the two logical high-pressure ball valve passes through the three-way ball valve and the water vat irrigating gate and institute
The formula connection able to turn on or off of lower cylinder chamber is stated, the water reversal valve is connect with the solenoid directional control valve by pneumatic pipeline, the water commutation
Valve is equipped with drainpipe.
2. lowest liquid level valve according to claim 1, it is characterised in that: the valve body irrigating gate and described two logical smash
Filter is equipped between valve, the filter is connected to the valve body irrigating gate and the two logical high-pressure ball valve respectively.
3. lowest liquid level valve according to claim 2, it is characterised in that: the valve rod includes successively fixed or is integrally formed
Upper valve rod, middle valve rod and lower valve rod, the upper valve rod pass through the water vat component outside, and the upper valve rod and the detection dress
Connection is set, the lower valve rod lower end surface is equipped with cone table, and the frustum body sidewall and the valve seat medial surface can contact formula sealing
It is bonded, the guiding valve pocket is arranged on the middle valve rod, the middle valve rod stretches out outside the guiding valve pocket, outside the middle valve rod
Wall is slidably connected with guiding valve sleeving inner wall sealing.
4. lowest liquid level valve according to claim 3, it is characterised in that: the upper valve rod, middle valve rod and the lower valve rod
The stepped increase of outer diameter.
5. lowest liquid level valve described in -4 any one claims according to claim 1, it is characterised in that: the detection device
Including detection contact block and electronic detector, the detection contact block is removably fixed in the valve rod top, the electronics inspection
Instrument is surveyed to connect with the detection contact block.
6. lowest liquid level valve described in -4 any one claims according to claim 1, it is characterised in that: the three-way ball valve
It is equipped with handle, the handle is removably fixed on the three-way ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958036.0U CN209262257U (en) | 2018-11-27 | 2018-11-27 | A kind of lowest liquid level valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821958036.0U CN209262257U (en) | 2018-11-27 | 2018-11-27 | A kind of lowest liquid level valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262257U true CN209262257U (en) | 2019-08-16 |
Family
ID=67564103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821958036.0U Active CN209262257U (en) | 2018-11-27 | 2018-11-27 | A kind of lowest liquid level valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262257U (en) |
-
2018
- 2018-11-27 CN CN201821958036.0U patent/CN209262257U/en active Active
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