CN208364795U - Piston flow regulating valve with cavitation resistance device - Google Patents
Piston flow regulating valve with cavitation resistance device Download PDFInfo
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- CN208364795U CN208364795U CN201820129793.0U CN201820129793U CN208364795U CN 208364795 U CN208364795 U CN 208364795U CN 201820129793 U CN201820129793 U CN 201820129793U CN 208364795 U CN208364795 U CN 208364795U
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- piston
- flow regulating
- regulating valve
- valve
- resistance device
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Abstract
The utility model discloses a piston flow regulating valve for having cavitation resistance device, wherein the piston flow regulating valve with cavitation resistance device includes a piston flow regulating valve body and a cavitation resistance device, wherein the cavitation resistance device includes an apparatus main body and a flow control portion, wherein described device main body forms a plurality of throttling passage, wherein the flow control portion includes a throttle valve and a valve body control piece, wherein the throttle valve is arranged at the throttling passage, to adjust the area of section of the throttling passage, wherein the piston flow regulating valve body includes an adjustable column valve body, wherein the throttle valve is controllably connected to the valve body control piece, wherein the valve body control piece is connected to the column valve body.
Description
Technical field
The utility model relates to the piston flow regulating valves that a fluid valve more particularly to one have cavitation resistance device, wherein described
The change of the pressure of the piston valve can be flowed through according to fluid with cavitation resistance device and will correspondingly be produced because of pressure change
Raw air exports the piston flow regulating valve.
Background technique
Flow regulating valve is widely used in water factory, power plant to control fluid flow, but fluid is when flowing through flow regulating valve,
It since the pressure market of fluid changes, is mixed into fluid so as to cause least a portion of air is had, and is mixed with the stream of air
Body is when flowing through flow regulating valve, due to the effect in high pressure, so that flow regulating valve valve body will be impacted by being mixed with the fluid of air, and then exchanges
Stream valve body cavitates, and will certainly will if things go on like this will lead to the damage of valve body, and valve body certainly will cause to adjust and flow once damaging
Valve is scrapped, and then shortens the service life of flow regulating valve.
Although prior art by being provided with the generation for being connected to the throttle structure of flow regulating valve to prevent cavitation erosion in valve body,
Be since the throttle structure is when being throttled, the throttling passage diameter of section of formation be it is fixed, can not with pass through adjust
It flows the size variation of the pressure of the fluid of valve and changes, therefore, when the fluid pressure for flowing through the flow regulating valve once changes
Afterwards, the effect that the throttle structure reduces cavitation erosion will have a greatly reduced quality, the main reason is that, once by the fluid pressure of flow regulating valve
When smaller, the throttle structure can not by fluid by the ejection of the throttle structure high speed, and by with air fluid along
Direction far from the flow regulating valve guides.
Utility model content
One of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein having gas-tight
The piston flow regulating valve of erosion includes a cavitation resistance device and a piston flow regulating valve body, wherein the cavitation resistance device be arranged at it is described
Piston flow regulating valve body, for the gas in the piston flow regulating valve body is guided along the direction far from the piston flow regulating valve body,
To avoid the influence cavitated to the piston flow regulating valve with cavitation resistance device.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein the band
There is cavitation resistance device while being able to carry out throttling, to make rapidly to be exported by the fluid of the piston flow regulating valve body.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein the band
There is the cavitation resistance device for the piston flow regulating valve for preventing cavitation erosion to include an apparatus main body and a flow control portion, wherein described device master
Body forms at least two throttling passages, and wherein described device main body is connected to the flow control portion, wherein when flow control portion quilt
When driving, when described device main body is correspondingly driven, so that the section of the throttling passage formed by described device main body
Area is able to be adjusted to after the fluid pressure for flowing through the piston flow regulating valve with cavitation resistance device changes,
The gas in fluid can be arranged by the throttling passage in turn by adjusting the flow control portion of the cavitation resistance device
Out.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein the band
The piston flow regulating valve for having cavitation resistance device includes a driving device, wherein the flow control portion of the cavitation resistance device can be driven
Ground is connected to the driving device, so that the flow control portion is able to be driven when the driving device is driven.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein the band
There is the piston flow regulating valve body of the piston flow regulating valve of cavitation device that there is an import, an outlet and be located at the import and described
A valve core chamber between outlet, wherein the piston flow regulating valve body further includes a piston type regulating device, wherein the piston type
Regulating device, which can axially move, is set to the valve core chamber, wherein the throttling passage is communicated in the valve core chamber, from
And can make fluid successively by the import, the piston type regulating device, the throttling passage and the outlet, and
Make fluid when by the throttling passage, be excluded the gas in fluid from the outlet, thus avoid gas holdup in
In the piston flow regulating valve body, cavitation erosion is generated.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein described anti-
The throttling passage that cavitation device is formed can change with the variation of fluid pressure, to eliminate the air in fluid.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein the band
The throttling passage for having cavitation resistance device to be formed can automatically change with the variation of fluid pressure, to eliminate in fluid
Air.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein passing through institute
Stating the throttling passage formed with cavitation resistance device has a flow inlet and an outflow port, wherein the flow inlet is connected to
In the outlet of the piston flow regulating valve, wherein the outflow port extends the outlet, to make the air quilt in fluid
The export piston flow regulating valve for having cavitation resistance device.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein the band
The piston flow regulating valve for having cavitation resistance device includes a fluid pressure detection means, wherein the fluid pressure detection device is set
Between the import and the outlet of the piston flow regulating valve.
Another of the utility model is designed to provide a piston flow regulating valve for having cavitation resistance device, wherein described anti-
Cavitation device is removably installed in the piston flow regulating valve body.
Technical solution provided by the utility model is a piston flow regulating valve for having cavitation resistance device, comprising:
One piston flow regulating valve body, wherein the piston flow regulating valve body has an import and an outlet, and including a piston type
Regulating device a, wherein valve core chamber is formed between the import and the outlet, wherein the piston type regulating device includes one
Plunger piston, the control valve valve shaft for being connected to the plunger piston, be connected to it is described control valve shaft a crank and
It is connected to a connecting rod of the crank, by controlling the connecting rod, to drive the plunger piston in the import and described
It is moved back and forth between outlet, wherein the plunger piston is relatively sealingly arranged by close with the valve core chamber；With
One cavitation resistance device, wherein the cavitation resistance device includes an apparatus main body and a flow control portion, wherein described device
Main body forms a plurality of throttling passage, wherein the flow control portion includes a throttle valve and a valve body control piece, wherein the throttle valve
It is arranged at the throttling passage, to adjust the area of section of the throttling passage, wherein the throttle valve is controllably connected
It is connected to the valve body control piece, wherein the valve body control piece is connected to the column valve body.
It is highly preferred that wherein described device main body is a cylinder, and close to the outlet traverse in the piston flow regulating valve
Body, wherein there is the cylinder influent stream face and one to go out stream interface, wherein the influent stream face is close to the import, wherein described go out to flow
Face is close to the outlet, wherein the influent stream face and the stream interface out are symmetrically arranged respectively with the cylinder axle center.
It is highly preferred that wherein the flow inlet is distributed far from influent stream face center, the outflow port distribution is close to described
The center of stream interface out, so that the axis of the throttling passage and the cylinder formed by the flow inlet and the outflow port
Shape is at a certain angle between line.
It is highly preferred that wherein the piston flow regulating valve with cavitation resistance device further includes a driving device, wherein described
Connecting rod is driveably connected to the driving device.
It is highly preferred that wherein the piston flow regulating valve with cavitation resistance device further includes a sealing element, wherein described close
Sealing is arranged between the plunger piston and the valve core chamber so that the plunger piston is by close opposite with the valve core chamber
Hermetically it is arranged.
It is highly preferred that wherein the sealing element is a rubber seal.
Detailed description of the invention
Fig. 1 is the piston flow regulating valve that the utility model one has cavitation resistance device.
Fig. 2 is the structural relation signal between a cavitation resistance device of an embodiment of the present invention and piston flow regulating valve body
Figure.
Fig. 3 is that the structural relation between a cavitation resistance device of another embodiment of the utility model and piston flow regulating valve body is shown
It is intended to.
Specific embodiment
It is described below to be disclosed for so that those skilled in the art manufacture and use the utility model.Middle offer described below
Preferred embodiment only as the example and modification that will be apparent to those skilled in the art, do not constitute to the utility model
The limitation of range.General Principle defined in described below can be answered without departing substantially from the spirit of the present invention and utility model range
For other embodiments, optional substitution, modification, equivalent implementation and application.
Referring to figs. 1 to Fig. 3, the utility model discloses a piston flow regulating valve 900 for having cavitation resistance device, described with anti-
The piston flow regulating valve 900 for losing device includes a cavitation resistance device 10 and a piston flow regulating valve body 20, wherein the cavitation resistance device
10 are arranged at the piston flow regulating valve 900 for having cavitation resistance device, flow through the piston tune with cavitation resistance device for eliminating
The gas in 900 fluid of valve is flowed, so that gas present in fluid be avoided to stay in the piston flow regulating valve with cavitation resistance device
Cavitation erosion is generated in 900 and damages the piston regulation valve.
The piston flow regulating valve body 20 has an import 201 and an outlet 202, wherein the import 201 and the outlet
A valve core chamber 203 is formed between 202, wherein the piston flow regulating valve body 20 further includes a piston type regulating device 21, wherein institute
It states piston type regulating device 21 and is sealingly arranged in the valve core chamber 203, wherein fluid can flow to institute from the import 201
Outlet 202 is stated, wherein the piston type regulating device 21 includes a control valve valve shaft 211, a crank 212,213 and of a connecting rod
Plunger piston 214, wherein the plunger piston 214 is driveably connected to the control valve valve shaft, wherein the connecting rod 213
It is connected to the control valve valve shaft 211, wherein the plunger piston 214 is arranged at the valve core chamber 203, and can be passed through
It adjusts the connecting rod 213 and then can make the plunger piston 214 in the valve core chamber 203 in the outlet 202 and import
It is moved back and forth between 201, wherein by adjusting the plunger piston 214, and then can adjust and flow through the piston flow regulating valve body
The flow velocity of 20 fluid.
Namely have a talk about, when flow through the piston flow regulating valve body 20 fluid flow rate need be adjusted constantly, pass through operation
The connecting rod 213, and then the crank 212 can be driven to drive the control valve valve shaft 211 that the plunger piston 214 is driven to exist
It is moved in the valve core chamber 203.
Further, in an embodiment of the utility model, the cavitation resistance device 10 is connected to the piston tune
Valve body 20 is flowed, and the cavitation resistance device 10 can correspondingly be received with the reciprocating motion of the piston flow regulating valve body 20
Contracting.
Specifically, the cavitation resistance device 10 includes an apparatus main body 11 and a flow control portion 12, wherein described device main body
11 form a plurality of throttling passage 110, and wherein described device main body 11 is adjustably connected to the flow control portion 12, wherein described
Flow control portion 12 is connected to the piston flow regulating valve body 20, wherein after the piston flow regulating valve body 20 is driven, wherein described anti-
The flow control portion 12 of cavitation device 10 is also correspondingly adjusted to make to be connected the described device master with the flow control portion 12
The area of section for the throttling passage 110 that body 11 is formed is able to be adjusted to described with cavitation resistance device when flow through
After the fluid pressure of piston flow regulating valve 900 changes, by adjusting the cavitation resistance device 10 the flow control portion 12 in turn
Gas in fluid can be discharged by the throttling passage 110 from the outlet 202.
More specifically, in an embodiment of the utility model, the flow control portion 12 includes a throttle valve 121 and a valve body control
Product 122, wherein the throttle valve 121 is arranged at the throttling passage 110 of described device main body 11, wherein the valve body
Control piece 122 is driveably connected to the plunger piston 214 of the piston type regulating device 21, wherein when the column
After shape piston 214 is driven, the valve body control piece 122 is correspondingly driven, so that it is adjusted the throttle valve 121, into
And the area of section for the throttling passage 110 that described device main body 11 can be enable to be formed is adjusted, and then flows through institute
State the fluid of the piston flow regulating valve with cavitation resistance device pressure change after, also can be with high flow rate from the outlet
202 outflows, and then make the generation for avoiding cavitation.
Further, the throttling passage 110 that wherein described device main body 11 is formed has 1101 He of a flow inlet
One outflow port 1102, wherein the throttling passage 110 is located between the flow inlet 1101 and 202 mouthfuls of the outlet, wherein flowing
Body can successively pass through the import 201, the flow inlet 1101 of the throttling passage 110, the outflow port 1102 and described
Outlet 202, and then flow out the piston flow regulating valve for having cavitation resistance device.
Preferably, the piston flow regulating valve 900 with cavitation resistance device further includes a sealing element 40, wherein the sealing
Part 40 is arranged between the plunger piston 214 and the valve core chamber 203 so that the plunger piston 214 is by the close and valve
Core room 203 is relatively sealingly arranged.It is highly preferred that the sealing element 40 is a rubber seal.
In an embodiment of the utility model, when the process import 201 flows into the piston for having cavitation resistance device
The pressure of the fluid of flow regulating valve reduces, and at this time by adjusting the connecting rod 213 of the piston type regulating device 21, and then makes institute
The plunger piston 214 for stating piston type regulating device 21 is mobile from the import 201 to the outlet 202, to accelerate to flow
Body is flowed out from the outlet 202 of the piston flow regulating valve body 20, and then adjusts the fluid flow rate.And at this point, being connected to
The valve body control piece 122 of the plunger piston 214 of the piston type regulating device 21 also moves, and then makes institute
It states throttle valve 121 to be adjusted, be reduced with controlling the area of section of the throttling passage 110, to keep fluid logical by the throttling
Road 110 is divided into the fluid of a plurality of height high pressure, and flows out the fluid of high speed and high pressure promptly from the outlet 202, into
And avoid being mixed in the gas in the fluid make because of high pressure described in the piston flow regulating valve 900 with cavitation resistance device by gas
Erosion.
It is noted that described device main body 11 is a cylinder, and close to 202 traverses of the outlet in the piston tune
Valve body 20 is flowed, wherein there is the cylinder influent stream face 1101 and one to go out stream interface 1102, wherein the influent stream face 1101 is close to institute
Import 201 is stated, wherein the stream interface 1102 out exports 202 close to described, wherein the influent stream face 1101 and the stream interface out
1102 are symmetrically arranged respectively with the cylinder axle center.Preferably, the flow inlet 1101 is distributed far from the influent stream face 1101
Center, the outflow port 1102 are distributed close to the center of the stream interface 1102 out, so that by the flow inlet 1101 and institute
It is at a certain angle to state shape between the throttling passage 110 of the formation of outflow port 1102 and the axis of the cylinder, thus when stream
When body flows to the outflow port 1102 from the flow inlet 1101, it can collide between swiftly flowing fluid, to make gas
Erosion phenomenon is controlled in outside the piston flow regulating valve body 20.
It will be further appreciated that the piston flow regulating valve with cavitation resistance device further includes a driving device 30, at this
In one embodiment of utility model, the connecting rod 213 of the piston type regulating device 21 is driveably connected and the driving
Device 30, wherein after the driving device 30 is driven, wherein the connecting rod 213 is correspondingly driven, to make the column
Piston 214 is actuated to move back and forth between the import 201 and the outlet 202.
In another embodiment of the utility model, the valve body control piece 122 in the flow control portion 12 is by driveably
It is connected to the driving device 30, wherein the valve body control piece 122 will be described in control after the driving device 30 is driven
Throttle valve 121 is to adjust the area of section of the throttling passage 110.
In the present embodiment, the cavitation resistance device 10 further includes a fluid pressure monitor 13 and a controller 14,
Described in fluid pressure monitor 13 and the controller 14 be arranged at the piston flow regulating valve body 20 respectively, to monitor fluid
The pressure of fluid in the throttling passage 110 is flowed through, wherein the fluid pressure monitor 13 and the driving device 30 are distinguished
It is communicatively connected in a network in the controller 14, wherein the fluid pressure monitor 13 is flowed in detection from the flow inlet 1101
To the fluid pressure of the outflow port 1102, and signal is formed, wherein the controller 14 correspondingly drives after receiving signal
The driving device 30 is connected to the valve body control piece 122 of the driving device 30 with further driving.
Specifically, in the present embodiment, when the process import 201 flows into the piston tune stream for having cavitation resistance device
The pressure of the fluid of valve 900 reduces, the detection of fluid pressure monitor 13 at this time from the flow inlet 1101 flow to it is described go out
The fluid pressure of head piece 1102, and signal is formed, wherein the controller 14 correspondingly drives the driving after receiving signal
Device 30 is connected to the valve body control piece 122 of the driving device 30, with further driving to control the throttling
The area of section in channel 110 reduces, so that fluid is made to be divided into the fluid of a plurality of height high pressure by the throttling passage 110, and
And flow out the fluid of high speed and high pressure promptly from the outlet 202, and then avoid the gas being mixed in the fluid because of height
It presses and the piston flow regulating valve 900 with a cavitation resistance device is made to be cavitated.
Combine figure embodiment that the utility model is described in detail above, those skilled in the art can root
Many variations example is made to the utility model according to above description.Thus, certain details in embodiment should not constitute practical to this
Novel restriction, the utility model will be using the ranges that the appended claims define as the protection scope of the utility model.
Claims (5)
1. one has the piston flow regulating valve of cavitation resistance device characterized by comprising
One piston flow regulating valve body wherein the piston flow regulating valve body has an import and an outlet, and is adjusted including a piston type
Device a, wherein valve core chamber is formed between the import and the outlet, wherein the piston type regulating device includes a column
Piston, the control valve valve shaft for being connected to the plunger piston, the crank for being connected to the control valve valve shaft and by
Be connected to a connecting rod of the crank, with by controlling the connecting rod, drive the plunger piston the import and it is described go out
It is moved back and forth between mouthful, wherein the plunger piston is relatively sealingly arranged with the valve core chamber；With
One cavitation resistance device, wherein the cavitation resistance device includes an apparatus main body and a flow control portion, wherein described device main body
A plurality of throttling passage is formed, wherein the flow control portion includes a throttle valve and a valve body control piece, wherein the throttle valve is set
It is placed in the throttling passage, to adjust the area of section of the throttling passage, wherein the throttle valve is controllably connected to
The valve body control piece, wherein the valve body control piece is connected to the plunger piston, wherein described have cavitation resistance device
Piston flow regulating valve further include a driving device, wherein the connecting rod is driveably connected to the driving device.
2. the piston flow regulating valve according to claim 1 with cavitation resistance device, which is characterized in that wherein described device master
Body is a cylinder, and close to the outlet traverse in the piston flow regulating valve body, wherein the cylinder has an influent stream face and one
Stream interface out, wherein the influent stream face is close to the import, wherein it is described go out stream interface close to the outlet, wherein the influent stream face and
The stream interface out is symmetrically arranged respectively with the cylinder axle center.
3. the piston flow regulating valve according to claim 2 with cavitation resistance device, which is characterized in that wherein the throttling is logical
Road has a flow inlet and an outflow port, wherein the flow inlet is distributed far from influent stream face center, the outflow port distribution
Close to it is described go out stream interface center so that the throttling passage formed by the flow inlet and the outflow port with it is described
Shape is at a certain angle between the axis of cylinder.
4. the piston flow regulating valve according to claim 3 with cavitation resistance device, which is characterized in that wherein described with anti-
The piston flow regulating valve of cavitation device further includes a sealing element, wherein the sealing element is arranged at the plunger piston and the valve
So that the plunger piston is relatively sealingly arranged by close with the valve core chamber between core room.
5. the piston flow regulating valve according to claim 4 with cavitation resistance device, which is characterized in that the wherein sealing element
For a rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820129793.0U CN208364795U (en) | 2018-01-25 | 2018-01-25 | Piston flow regulating valve with cavitation resistance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820129793.0U CN208364795U (en) | 2018-01-25 | 2018-01-25 | Piston flow regulating valve with cavitation resistance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364795U true CN208364795U (en) | 2019-01-11 |
Family
ID=64913053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820129793.0U Active CN208364795U (en) | 2018-01-25 | 2018-01-25 | Piston flow regulating valve with cavitation resistance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208364795U (en) |
-
2018
- 2018-01-25 CN CN201820129793.0U patent/CN208364795U/en active Active
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