CN109973694A - A kind of booster stop valve - Google Patents
A kind of booster stop valve Download PDFInfo
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- CN109973694A CN109973694A CN201910289913.2A CN201910289913A CN109973694A CN 109973694 A CN109973694 A CN 109973694A CN 201910289913 A CN201910289913 A CN 201910289913A CN 109973694 A CN109973694 A CN 109973694A
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- pilot
- induction
- water outlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 230000006698 induction Effects 0.000 claims abstract description 85
- 238000012423 maintenance Methods 0.000 claims description 24
- 230000005674 electromagnetic induction Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 abstract description 17
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
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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
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
Abstract
The invention discloses a kind of booster stop valves, include: main valve body, be provided with valve chamber, the first water inlet, the first water outlet, main valve body is equipped with a valve rod, valve rod passes through valve chamber and in being fixedly installed a valve plate in valve chamber, and valve plate can be closed the first water inlet or the first water outlet；Rear valve body, is installed on main valve body and is connected to the first water outlet, and rear valve body is provided with first piston chamber, first piston is intracavitary to be equipped with induction piston, first piston chamber is provided with close to one end of valve rod and penetrates hole, and induction channels are additionally provided on rear valve body, and induction channels are connected to first piston chamber；Solenoid pilot valve system and/or mechanical pilot system are connected to induction channels, and automatic opening when the pressure value in induction channels reaches setting value or is greater than the set value.This booster stop valve can both realize water flow truncation when booster occurs for upstream, water flow truncation can also be realized when booster occurs for downstream, and cut-off efficiency is high, reliable operation, lower production costs, strong environmental adaptability.
Description
Technical field
The invention belongs to valve technology fields, and in particular to a kind of booster stop valve.
Background technique
Water transfer pipe network is largely embedded in underground, can not implement daily maintenance and maintenance substantially, be embedded in underground for a long time
Water supply line will cause that tube wall is thinning, strength reduction due to the effect by soil corrosion and electrochemical corrosion, to increase hair
The probability of raw pipe explosion accident.In addition, the cross-section of river caused by due to pipeline scale reduces, water passing capacity reduces, the resistance of ducting increases
Greatly, pipeline overload operation etc. also easily causes booster.The pipeline too long for pipe age, under the reciprocation of corrosion and scaling,
Tube wall fatigue, along with the variation of landing load, the variation of seasonal temperature, booster is just almost difficult to avoid that.Once booster is both
To the huge waste of medium itself, it is often more important that it may also result in secondary disaster, damage communal facility, bridge section of destroying by rush of water,
Especially in locations such as hospital, school, gas stations, once booster occurs, in some instances it may even be possible to social concern can be caused.
Existing booster stop valve is generally butterfly, and valve operation is made up of speed measuring device and external control component etc., as
The valve plate of core component need to be conducted by the control of external system could execute valve closing movement, and reliability is lower, especially in valve
Door is installed on the occasion of the inconvenient maintenance such as trench, valve pit, once situations such as water logging, sundries invasion occurs, too long, excessive
, transmission mechanism outside valve, it is difficult to it is long-term to keep reliable operation to cope with the booster situation occurred at random.Simultaneously
Existing booster stop valve mainly copes with the case where downstream booster, and booster, which occurs, to upstream cannot achieve cutting function.
Summary of the invention
To solve the above-mentioned problems, the present invention provides that a kind of structure is simple, reliable in action, strong environmental adaptability, upper,
The booster stop valve that downstream booster can be truncated.
The present invention solves a kind of technical solution used by its technical problem: a kind of booster stop valve, comprising:
Main valve body, the main valve body are internally provided with valve chamber, and the side of valve chamber is provided with the first water inlet, another
Side is provided with the first water outlet, and a valve rod is equipped on the main valve body, and the valve rod passes through valve chamber and sets in fixation in valve chamber
It is equipped with a valve plate, the size of the valve plate is less than valve chamber and is greater than the first water inlet and the first water outlet, thus with valve rod edge
It can be closed the first water inlet or the first water outlet when being axially moved；
Rear valve body is installed on main valve body and is connected to the first water outlet, is provided on the rear valve body along valve rod axial direction cloth
The first piston chamber set, the first piston is intracavitary to be equipped with induction piston, and the first piston chamber is close to the one of valve rod
End is provided with for valve rod penetrates and abuts the hole that penetrates of induction piston, and is additionally provided with induction channels on the rear valve body, described
Induction channels are connected to one end that first piston chamber deviates from valve rod；
Solenoid pilot valve system and/or mechanical pilot system are connected to induction channels, and the pressure value in induction channels reaches
Automatic opening when to setting value or being greater than the set value, in order to induction piston under the action of valve rod to close to induction channels one
End is mobile and valve plate is made to be closed the first water outlet.
Preferably, which further includes reset maintenance main valve, the first water inlet of the reset maintenance main valve connection
Mouthful, for control valve plate and the first water outlet closure after unlatching reset.
Preferably, the mechanical pilot system is provided with a mechanical sense and answers pilot valve, and the mechanical sense answers pilot valve to be provided with
Separate the sprung piston mechanism of the second water inlet and the second water outlet under two water inlets, the second water outlet and normality, described second
Water inlet is connected to induction channels, and pressure of the sprung piston mechanism in induction channels can be connected the when being greater than pressure itself value
Two water outlets and the second water inlet.
Preferably, the mechanical pilot system is additionally provided with bypass conduit and a three-way connection, three-way connection setting
It is answered between pilot valve and induction channels in mechanical sense, and one end of bypass line connects three-way connection, other end connection resets maintenance
The water inlet end pipeline of main valve, and the first reset needle-valve is provided on bypass line, the first reset needle-valve is for controlling side
The opening and closing on siphunculus road.
Preferably, the mechanical sense answers pilot valve to have an induction pilot valve body, and it is living to be provided with second in the induction pilot valve body
Chamber and spring cavity are filled in, is separated between the second piston chamber and spring cavity by a partition, the sprung piston mechanism includes living
Plug and reset spring, the piston include being installed on the intracavitary piston crown of second piston and connection piston crown and passing through partition
The shank in spring cavity is extended, the reset spring is installed in spring cavity and the end of pushing tow shank, second water inlet
Mouth connection second piston chamber deviates from one end of spring cavity and is closed by piston crown, and second water outlet is connected to second piston
Chamber constitute sealing pair between the side of the second water inlet, the piston crown and second piston chamber and in piston crown with every
A counter balance pocket is formed between plate, and the piston crown separates the second water outlet and counter balance pocket always.
Preferably, the mechanical pilot system is additionally provided with the second reset needle-valve, debugging needle-valve and the first sluicing needle-valve, institute
It states the second reset needle-valve to be set between reset maintenance main valve and main valve body, described debugging needle-valve one end connects counter balance pocket, another
The first water outlet of end connection, the first sluicing needle-valve connect the second water outlet.
Preferably, the induction pilot valve body is equipped with adjusting bolt away from one end of second piston chamber in spring cavity, described
It adjusts bolt and abuts reset spring, with the decrement for adjusting reset spring.
Preferably, the solenoid pilot valve system is provided with PLC system and electromagnetic induction pilot valve, and the electromagnetic induction pilot valve connects
Logical induction channels are simultaneously electrically connected PLC system.
Preferably, the solenoid pilot valve system is additionally provided with first pressure sensor, second pressure sensor and flow and passes
Sensor, the first pressure sensor are set to the first water inlet, the second pressure sensor and flow sensor setting
In the first water outlet, and the first pressure sensor, second pressure sensor and flow sensor are electrically connected PLC system
System.
Preferably, the main valve body includes left valve barrel and right valve barrel, and one end of the left valve barrel is provided with left valve seat, described
First water inlet is set on left valve seat, and left pilot hole is offered on left valve seat, and one end of the right valve barrel is provided with right valve
Seat, first water outlet is set on right valve seat, and right pilot hole is offered on right valve seat, the left valve barrel and left valve seat phase
Pair one end connection right valve barrel one end opposite with right valve seat, the valve rod is arranged in left pilot hole and right pilot hole.
The beneficial effects of the present invention are:
This booster stop valve can both realize water flow truncation when booster occurs for upstream, can also be when booster occurs for downstream
Realize water flow truncation, and cut-off efficiency is high, reliable operation.Lower production costs due to structure is simple simultaneously, it is less because being driven
And Reliability of Microprocessor is high, strong environmental adaptability.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is a kind of structural schematic diagram of booster stop valve；
Fig. 2 is a kind of structural schematic diagram that mechanical sense answers pilot valve；
Operation schematic diagram when Fig. 3 is downstream booster；
Operation schematic diagram when Fig. 4 is upstream booster.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.
Referring to Fig.1, Fig. 3 and Fig. 4, the present invention provide a kind of booster stop valve, comprising:
Main valve body 100, the main valve body 100 is internally provided with valve chamber, and the side of valve chamber is provided with the first water inlet
Mouth 101, the other side are provided with the first water outlet 102, a valve rod 103 are equipped on the main valve body 100, the valve rod 103 is worn
Cross valve chamber and in being fixedly installed a valve plate 104 in valve chamber, the size of the valve plate 104 is less than valve chamber and is greater than the first water inlet
101 and first water outlet 102, so that the first water inlet 101 or the first water outlet can be closed when with valve rod 103 along its axial movement
Mouth 102；
Rear valve body 300 is installed on main valve body 100 and is connected to the first water outlet 102, is provided on the rear valve body 300
The first piston chamber 301 axially arranged along valve rod 103 is equipped with induction piston 302, and institute in the first piston chamber 301
It states first piston chamber 301 and is provided with close to one end of valve rod 103 and penetrated for valve rod 103 and abut penetrating for induction piston 302
Hole, induction channels 303 are additionally provided on the rear valve body 300, and the induction channels 303 are connected to first piston chamber 301 and deviate from valve
One end of bar 103；
Solenoid pilot valve system and/or mechanical pilot system are connected to induction channels 303, and the pressure in induction channels 303
Automatic opening when force value reaches setting value or is greater than the set value, in order to induction piston 302 under the action of valve rod 103 to close
One end of induction channels 303 is mobile and valve plate 104 is made to be closed the first water outlet 102.
In normal work, it is ensured that 104 pressure of valve plate it is equal with pressure in induction channels 303 and with solenoid pilot valve system
The setting value of system and/or mechanical pilot system is equal.In downstream when booster, water yield increases, thrust suffered by valve plate 104 increase and
Increase the pressure in induction channels 303 by induction piston 302, solenoid pilot valve system and/or mechanical pilot system automatically turn on
Pressure release keeps induction piston 302 removable and makes valve plate 104 can be to mobile and the first water outlet of closure at the first water outlet 102
102, realize cutting.And in upstream booster, the water in downstream will appear reflux, push valve plate 104 to shifting at the first water inlet 101
It moves and is closed the first water inlet 101, realize cutting.Therefore, there is booster in upstream, downstream in the booster stop valve in the present embodiment
Shi Jun is able to achieve water flow break-in facility, and the more traditional butterfly valve of structure adds the structure type of external control component more simple,
It works more reliable, it is highly-safe.
As shown in Figure 1, the main valve body 100 in the present embodiment includes left valve barrel 107 and right valve barrel 108, the left valve barrel 107
One end be provided with left valve seat 105, first water inlet 101 is set on left valve seat 105, and offers on left valve seat 105
Left pilot hole, one end of the right valve barrel 108 are provided with right valve seat 106, and first water outlet 102 is set to right valve seat 106
On, and right pilot hole is offered on right valve seat 106, the left valve barrel 107 one end opposite with left valve seat 105 is bolted
Right valve barrel 108 surrounds valve chamber with right opposite one end of valve seat 106, and the valve rod 103 is arranged in left pilot hole and right pilot hole
It is interior.And the inner wall that left valve barrel 107 and right valve barrel 108 form valve chamber is cambered surface, thus in the side of valve plate 104 and the side of valve chamber
A circular passage is formed between wall, is passed through convenient for water flow.In order to enhance valve plate 104 to the first water inlet 101 and the first water outlet
Sealing ring can be arranged in corresponding first water inlet 101 in the two sides of valve plate 104 and the first water outlet 102 in 102 sealing, and or
Person corresponds to valve plate 104 in the position of the first water inlet 101 and the first water outlet 102 and sealing ring is arranged.
The mechanical pilot system is provided with a mechanical sense and answers pilot valve 500, and the mechanical sense answers pilot valve 500 to be provided with second
Separate the spring piston machine of the second water inlet 511 and the second water outlet 512 under water inlet 511, the second water outlet 512 and normality
Structure, second water inlet 511 are connected to induction channels 303, and pressure of the sprung piston mechanism in induction channels 303 is greater than
The second water outlet 512 and the second water inlet 511 can be connected when pressure itself value.
As shown in Fig. 2, the mechanical sense answers pilot valve 500 to have an induction pilot valve body 508, in the induction pilot valve body 508
It is provided with second piston chamber 514 and spring cavity 515, passes through a partition 510 between the second piston chamber 514 and spring cavity 515
It separates, the sprung piston mechanism includes piston 509 and reset spring 516, and the piston 509 includes being installed on second piston chamber
Piston crown in 514 extends the shank in spring cavity 515, the piston 509 with connection piston crown and across partition 510
Piston crown and shank difference in areas, it is consistent with the maximum cross-section area of induction piston 302.The reset spring 516 is installed
In in the spring cavity 515 and end of pushing tow shank, second water inlet 511 connects second piston chamber 514 and deviates from spring cavity 515
One end and be closed by piston crown, second water outlet 512 is connected to second piston chamber 514 close to the second water inlet 511
Side, between the piston crown and second piston chamber 514 constitute sealing pair and formed between piston crown and partition 510
One counter balance pocket 513, and the piston crown separates the second water outlet 512 and counter balance pocket 513 always.Wherein, in piston crown
Between second piston chamber 514, between the partition and shank and end face of piston crown and can be between the second water inlet 511
Sealing ring is set to increase leakproofness.The induction pilot valve body 508 deviates from the one of second piston chamber 514 in spring cavity 515 simultaneously
End, which is equipped with, adjusts bolt 517, and the adjusting bolt 517 abuts reset spring 516, with the pressure for adjusting reset spring 516
Contracting amount.
Hydraulic pressure is preferably used in induction channels 303, i.e., water is injected in induction channels 303 and first piston chamber 301.In order to true
The hydraulic pressure protected in induction channels 303 is consistent with the hydraulic pressure at the first water inlet 101, and booster stop valve is further set in the present embodiment
Set reset maintenance main valve 200, resets maintenance the first water inlet 101 of connection of main valve 200, for controlling valve plate 104 and the
Unlatching after one water outlet 102 closure resets.And the mechanical pilot system is additionally provided with bypass conduit 507 and a threeway
Connector 505, which is set to mechanical sense and answers between pilot valve 500 and induction channels 303, and the one of bypass line 507
End connection three-way connection 505, other end connection resets the water inlet end pipeline of maintenance main valve 200, and is arranged on bypass line 507
There is the first reset needle-valve 501, the first reset needle-valve 501 is used to control the opening and closing of bypass line 507.
Further, the mechanical pilot system is additionally provided with the second reset needle-valve 502, debugging needle-valve 503 and first is let out
Water needle valve 506, the second reset needle-valve 502 are set between reset maintenance main valve 200 and main valve body 100, the debugging needle
503 one end of valve connects counter balance pocket 513, the other end connects the first water outlet 102, and the connection of the first sluicing needle-valve 506 second goes out
The mouth of a river 512.
In order to facilitate maintenance, it is provided with maintenance needle-valve 504, between three-way connection 505 and induction channels 303 so as to list
Solely the mechanical induction pilot valve 500 of disassembly is overhauled.
As shown in Figure 1, the solenoid pilot valve system is provided with PLC system 400 and electromagnetic induction pilot valve 401, the electromagnetism
Induction pilot valve 401 is connected to induction channels 303 and is electrically connected PLC system 400.And the output end of the electromagnetic induction pilot valve 401
It is connected with the second sluicing needle-valve 405, to control valve closing speed by sluicing flow velocity.
And the solenoid pilot valve system is additionally provided with first pressure sensor 402, second pressure sensor 403 and flow
Sensor 404, the first pressure sensor 402 are set at the first water inlet 101,403 He of second pressure sensor
Flow sensor 404 is set at the first water outlet 102, and the first pressure sensor 402, second pressure sensor 403
PLC system 400 is electrically connected with flow sensor 404.In actual installation process, the flow sensor 404 can be set in
On rear valve body 300.
The working mechanism of booster stop valve in the present embodiment is as follows:
When original state, closes and reset maintenance main valve 200, the water flow pressure of the first water inlet 101 is truncated, it is multiple to open first
Position needle-valve 501 makes upper water stream enter induction channels 303 simultaneously by bypass line 507, three-way connection 505 and maintenance needle-valve 504
It is full of, while induction piston 302 being pushed into the end of first piston chamber 301.The water-filling can pass through electromagnetism sense during being vented
Pilot valve 401, the detection of the second sluicing needle-valve 405 are answered, when air excludes clean, when being pressure water of outflow, closing electromagnetic induction
Pilot valve 401, the second sluicing needle-valve 405 keep the water flow pressure in induction channels 303.Induction piston 302 is in the process pushed
In push valve plate 104 to be located at the middle position of valve chamber by valve rod 103, in side formation circular passage.
It at the uniform velocity opens later and resets maintenance main valve 200, simultaneously close off the first reset needle-valve 501, connection booster stop valve
Upstream and downstream, water flow are limited by valve plate 104 and are separated around, logical by the annular constituted between 104 outer rim of valve plate and valve chamber inner wall
Road flows into downstream, and according to hydromechanical around flow phenomenon, water flow will generate thrust to valve plate 104 can according to drag evaluation is streamed
The value of the active force is calculated, valve plate 104 passes through valve rod 103 by Force feedback to induction piston 302, in induction channels 303
Water flow generate pressure, since induction channels 303 are closed, the pressure can back through induction piston 302 control valve plate 104
Position.When the pressure P1 in induction channels 303 is in setting range, mechanical sense answers pilot valve 500 and electromagnetic induction pilot valve
401 remain closed, and valve plate 104 is made to be in valve chamber middle position, and the water flow of normal flow can uniformly pass through valve chamber.
The solenoid pilot valve system is respectively arranged with first pressure sensor 402, second pressure biography in the forward and backward of valve plate 104
Sensor 403 measures intracavitary flow, all signals by flow sensor 404 to incude the pressure of the forward and backward water flow of valve plate 104
PLC system 400 is imported, when flow is in setting range, i.e., the pressure P1 in induction channels 303 is in setting range,
Electromagnetic induction pilot valve 401 remains turned-off, and the position of valve plate 104 is controlled by induction piston 302, and water flow can be normally through.
And mechanical pilot system setting mechanical sense answers pilot valve 500 to be connected to induction channels 303, in induction channels 303
When pressure P1 is less than pressure value P 2 set by the spring force of reset spring 516, the second water inlet is closed by piston crown
511, water flow can be normally through.Counter balance pocket 513 water flow normally through when by debugging needle-valve 503 be connected to the first water outlet 102,
To balance the blind plate thrust of induction piston 302 by induction channels 303, keep spring force only suffered in flow field with valve plate 104
Stream resistance ratios pair, and it is only related to flow rate of water flow to stream resistance, can be directly in valve chamber therefore by the setting of spring force
Flow rate of water flow is set.
When downstream booster occurs, state is as shown in figure 3, the operation conditions of booster stop valve is as follows:
For mechanical pilot system, when pipe explosion accident occurs for downstream, flow velocity is sharply increased in valve chamber, and water flow is to valve plate
104 thrust increases, and answers pilot valve when the pressure value P 1 acted in induction channels 303 by induction piston 302 is greater than mechanical sense
In 500 when pressure value P 2 set by the spring force of reset spring 516, piston crown downlink opens the second water inlet 511, is allowed to
It is connected to the second water outlet 512, the water in induction channels 303 flows through the discharge of the first sluicing needle-valve 506, and drainage speed can pass through
The regulation of first sluicing needle-valve 506, valve plate 104 is closed the first water outlet 102 under water jet propulsion later, and upstream water flow is truncated, and
Cutting is always maintained under the pressure effect of upstream water flow；
For solenoid pilot valve system, when pipe explosion accident occurs for downstream, flow velocity is sharply increased in valve chamber, and water flow is to valve plate
104 thrust increases, and when flow sensor 404, which feeds back flow, is greater than the setting value of PLC system 400, PLC system 400 is issued
Instruction control electromagnetic induction pilot valve 401 is opened, and the pressure water in induction channels 303 is discharged through the second sluicing needle-valve 405, and can
Regulate and control the velocity of discharge by the second sluicing needle-valve 405, valve plate 104 is closed the first water outlet 102 under water jet propulsion later, truncation
Upstream water flow, and cutting is always maintained under the effect of the pressure of upstream water flow.
After the reparation of downstream booster, first closes and reset the maintenance truncation upstream pressure of main valve 200, close mechanical pilot system
First sluicing needle-valve 506, open mechanical pilot system first reset needle-valve 501, make upper water stream by bypass line 507,
Three-way connection 505 and maintenance needle-valve 504 enter the pressurising again of induction channels 303, and open second and reset needle-valve 502, removal
The water flow pressure between maintenance main valve 200 and valve plate 104 is resetted, induction piston 302 is made to push valve under the action of the hydraulic pressure of upstream
Bar 103 drive valve plate 104 separate and reopen with the first water outlet 102, after unlatching close first reset needle-valve 501,
Second resets needle-valve 502, slowly opens the first sluicing needle-valve 506 for resetting maintenance main valve 200 and opening mechanical pilot system, extensive
It is multiple to operate normally.During this, solenoid pilot valve is can be realized in the electromagnetic induction pilot valve 401 for being directly re-closing off solenoid pilot valve system
The reset of system.
When pipe explosion accident occurs for upstream, state is as shown in figure 4, the water flow in downstream will appear refluence, to push valve
Plate 104 is to movement at the first water inlet 101, since valve rod 103 is not fixedly connected with induction piston 302, in the process
It can be separated with induction piston 302 until the first water inlet 101 of closure of valve plate 104, is truncated water flow, and under the pressure of downstream water flow
It stays closed all the time.After the reparation of upstream booster, upstream pressure restores, and valve plate 104 automatically returns to valve chamber middle position, restores just
Often supply water.
Solenoid pilot valve system and mechanical pilot system in the present embodiment can be arranged simultaneously, can also only be arranged wherein one
It is a.When being both arranged, solenoid pilot valve system has remote control feedback and remote control function, and mechanical pilot system has
There is automatic control function, the two cooperating can effectively promote the functional reliability of booster stop valve.Mechanical pilot is only being set
When system, induction channels 303 also need one controllable valve of connection, exhaust when in order to be filled with water flow, and solenoid pilot valve is only being arranged
When system, the water-filling in induction channels 303 needs to be arranged the structures such as the bypass line 507 in mechanical pilot system.
Certainly, the booster stop valve in the present embodiment can also be used for other flow medias, not be confined to water flow.
In conclusion the booster stop valve in the present embodiment can both realize water flow truncation when booster occurs for upstream,
Water flow truncation can be realized when booster occurs for downstream, and cut-off efficiency is high, reliable operation.It is produced simultaneously because structure is simple
Cost is relatively low, and Reliability of Microprocessor is high due to transmission is less, strong environmental adaptability.
Above-described embodiment is preferred embodiment of the invention, and the present invention can also have other embodiments.The technology of this field
Personnel can also make equivalent deformation or replacement on the premise of without prejudice to spirit of the invention, these equivalent variation or replacement are wrapped
It is contained in range set by the claim of this application.
Claims (10)
1. a kind of booster stop valve, characterized by comprising:
Main valve body (100), the main valve body (100) is internally provided with valve chamber, and the side of valve chamber is provided with the first water inlet
Mouth (101), the other side are provided with the first water outlet (102), are equipped with a valve rod (103), the valve on the main valve body (100)
Bar (103) passes through valve chamber and in being fixedly installed in valve chamber a valve plate (104), and the size of the valve plate (104) is less than valve chamber simultaneously
Greater than the first water inlet (101) and the first water outlet (102), so that the can be closed when with valve rod (103) along its axial movement
One water inlet (101) or the first water outlet (102)；
Rear valve body (300) is installed on main valve body (100) and is connected to the first water outlet (102), sets on the rear valve body (300)
It is equipped with the first piston chamber (301) axially arranged along valve rod (103), induction piston is installed in the first piston chamber (301)
(302), and the first piston chamber (301) is provided with close to the one end of valve rod (103) and penetrates and abut for valve rod (103)
Induction piston (302) penetrates hole, is additionally provided with induction channels (303), the induction channels on the rear valve body (300)
(303) connection first piston chamber (301) deviates from the one end of valve rod (103)；
Solenoid pilot valve system and/or mechanical pilot system are connected to induction channels (303), and the pressure in induction channels (303)
Automatic opening when force value reaches setting value or is greater than the set value, in order to induction piston (302) under the action of valve rod (103) to
One end close to induction channels (303) is mobile and valve plate (104) is made to be closed the first water outlet (102).
2. a kind of booster stop valve as described in claim 1, which is characterized in that further include reset maintenance main valve (200), institute
Reset maintenance main valve (200) connection the first water inlet (101) is stated, is closed for controlling valve plate (104) and the first water outlet (102)
Unlatching afterwards resets.
3. a kind of booster stop valve as claimed in claim 2, which is characterized in that the mechanical pilot system is provided with a machinery
Incude pilot valve (500), the mechanical sense answers pilot valve (500) to be provided with the second water inlet (511), the second water outlet (512) and normal
Separate the sprung piston mechanism of the second water inlet (511) Yu the second water outlet (512) under state, second water inlet (511) is even
Logical induction channels (303), pressure of the sprung piston mechanism in induction channels (303) can be connected when being greater than pressure itself value
Second water outlet (512) and the second water inlet (511).
4. a kind of booster stop valve as claimed in claim 3, which is characterized in that the mechanical pilot system is additionally provided on one side
Siphunculus road (507) and a three-way connection (505), the three-way connection (505) are set to mechanical sense and answer pilot valve (500) and induction channels
(303) between, and one end of bypass line (507) connection three-way connection (505), other end connection reset maintenance main valve (200)
Water inlet end pipeline, and the first reset needle-valve (501) is provided on bypass line (507), described first resets needle-valve (501)
For controlling the opening and closing of bypass line (507).
5. a kind of booster stop valve as claimed in claim 3, which is characterized in that the mechanical sense answers pilot valve (500) to have one
Incude pilot valve body (508), is provided with second piston chamber (514) and spring cavity (515) in the induction pilot valve body (508), it is described
It is separated between second piston chamber (514) and spring cavity (515) by a partition (510), the sprung piston mechanism includes piston
(509) and reset spring (516), the piston (509) include piston crown and the connection being installed in second piston chamber (514)
Piston crown simultaneously extends the shank in spring cavity (515) across partition (510), and the reset spring (516) is installed on spring
In chamber (515) and the end of pushing tow shank, the second water inlet (511) connection second piston chamber (514) deviate from spring cavity
(515) one end is simultaneously closed by piston crown, and second water outlet (512) is connected to second piston chamber (514) close to second
The side of water inlet (511), between the piston crown and second piston chamber (514) constitute sealing pair and in piston crown with every
It is formed between plate (510) counter balance pocket (513), and the piston crown separates the second water outlet (512) and counter balance pocket always
(513)。
6. a kind of booster stop valve as claimed in claim 5, which is characterized in that the mechanical pilot system is additionally provided with second
Needle-valve (502), debugging needle-valve (503) and the first sluicing needle-valve (506) are resetted, described second, which resets needle-valve (502), is set to again
Between position maintenance main valve (200) and main valve body (100), the debugging needle-valve (503) one end connects counter balance pocket (513), the other end
It connects the first water outlet (102), the first sluicing needle-valve (506) connects the second water outlet (512).
7. a kind of booster stop valve as claimed in claim 5, which is characterized in that the induction pilot valve body (508) is in spring cavity
(515) one end away from second piston chamber (514), which is equipped with, adjusts bolt (517), and the adjusting bolt (517), which abuts, resets bullet
Spring (516), with the decrement for adjusting reset spring (516).
8. a kind of booster stop valve as claimed in claim 2, which is characterized in that the solenoid pilot valve system is provided with PLC system
System (400) and electromagnetic induction pilot valve (401), the electromagnetic induction pilot valve (401) are connected to induction channels (303) and are simultaneously electrically connected
PLC system (400).
9. a kind of booster stop valve as claimed in claim 8, which is characterized in that the solenoid pilot valve system is additionally provided with first
Pressure sensor (402), second pressure sensor (403) and flow sensor (404), the first pressure sensor (402)
It is set at the first water inlet (101), the second pressure sensor (403) and flow sensor (404) are set to first and go out
At the mouth of a river (102), and the first pressure sensor (402), second pressure sensor (403) and flow sensor (404) are equal
It is electrically connected PLC system (400).
10. such as a kind of described in any item booster stop valves of claim 1-9, which is characterized in that the main valve body (100) includes
One end of left valve barrel (107) and right valve barrel (108), the left valve barrel (107) is provided with left valve seat (105), first water inlet
Mouth (101) is set on left valve seat (105), and left pilot hole is offered on left valve seat (105), and the one of the right valve barrel (108)
End is provided with right valve seat (106), and first water outlet (102) is set on right valve seat (106), and opens on right valve seat (106)
Equipped with right pilot hole, the left valve barrel (107) one end opposite with left valve seat (105) connect right valve barrel (108) and right valve seat
(106) opposite one end, the valve rod (103) are arranged in left pilot hole and right pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289913.2A CN109973694B (en) | 2019-04-11 | 2019-04-11 | Explosion tube cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910289913.2A CN109973694B (en) | 2019-04-11 | 2019-04-11 | Explosion tube cut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109973694A true CN109973694A (en) | 2019-07-05 |
| CN109973694B CN109973694B (en) | 2024-02-23 |
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ID=67084146
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910289913.2A Active CN109973694B (en) | 2019-04-11 | 2019-04-11 | Explosion tube cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973694B (en) |
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| CN110925452A (en) * | 2019-12-03 | 2020-03-27 | 中铁五局集团第一工程有限责任公司 | Engineering water supply system based on BIM |
| CN112797207A (en) * | 2021-03-01 | 2021-05-14 | 四川长仪油气集输设备股份有限公司 | Pilot-operated pipeline explosion positive and negative action axial flow type self-closing valve |
| CN113564880A (en) * | 2020-04-29 | 2021-10-29 | 青岛海尔滚筒洗衣机有限公司 | Drum washing machine |
| CN114607813A (en) * | 2022-03-24 | 2022-06-10 | 君品集团有限公司 | Well head emergency cut-off device |
| CN117016157A (en) * | 2023-10-09 | 2023-11-10 | 中国农业科学院农田灌溉研究所 | Pneumatic pipeline fertilizer conveying system for irrigation |
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| CN112797207B (en) * | 2021-03-01 | 2022-09-06 | 四川长仪油气集输设备股份有限公司 | Pilot-operated pipeline explosion positive and negative action axial flow type self-closing valve |
| CN114607813A (en) * | 2022-03-24 | 2022-06-10 | 君品集团有限公司 | Well head emergency cut-off device |
| CN117016157A (en) * | 2023-10-09 | 2023-11-10 | 中国农业科学院农田灌溉研究所 | Pneumatic pipeline fertilizer conveying system for irrigation |
| CN117016157B (en) * | 2023-10-09 | 2024-01-05 | 中国农业科学院农田灌溉研究所 | Pneumatic pipeline fertilizer conveying system for irrigation |
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|---|---|
| CN109973694B (en) | 2024-02-23 |
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