CN205824224U - A kind of flow control valve - Google Patents
A kind of flow control valve Download PDFInfo
- Publication number
- CN205824224U CN205824224U CN201620803803.5U CN201620803803U CN205824224U CN 205824224 U CN205824224 U CN 205824224U CN 201620803803 U CN201620803803 U CN 201620803803U CN 205824224 U CN205824224 U CN 205824224U
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- China
- Prior art keywords
- valve
- sleeve
- flow control
- spool
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Abstract
The utility model discloses a kind of flow control valve, relate to valve field.This flow control valve includes valve body, the support being arranged in valve body, the valve rod that is arranged in support；Connect below described valve rod and have spool, and in valve body, it is provided with the telescopic valve pocket of multistage flaring coordinated with spool, the telescopic valve pocket of multistage flaring is assembled by inner valve sleeve, middle valve pocket, outer valve sleeve, and has all shifted to install throttle orifice on inner valve sleeve, middle valve pocket, outer valve sleeve.Use this utility model effectively stop valve to be carried out throttle-flow adjustment, it is to avoid the phenomenons such as cavitation erosion, improve valve service life.
Description
Technical field
This utility model relates to valve field, is specifically related to a kind of flow control valve.
Background technology
Existing majority known regulation valve, it is in flow field and is easy to produce vibration and noise, the valve when small guide vane
Place's pressure reduction is maximum, and it is the most prominent that vibration and noise also show；It is frequently accompanied by that cavitation, erosion phenomenon occur, seals in causing valve
Assembly damages at short notice, and seal failure causes leakage.Therefore, regulation valve is throttled and just seems particularly necessary, but existing
Some water saving measures having, otherwise excessively complicated, it is difficult to later stage maintenance, maintenance；Speed limit throttling arrangement is easy to blocking, and
And erosion is the most extremely serious after using a period of time.
Utility model content
This utility model aims to provide a kind of flow control valve, to solve the problems referred to above.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of flow control valve, it is characterised in that: include valve body, the support being arranged in valve body, be arranged in support
Valve rod；Connect below described valve rod and have spool, and in valve body, be provided with the telescopic valve pocket of multistage flaring coordinated with spool, many
The level telescopic valve pocket of flaring is assembled by inner valve sleeve, middle valve pocket, outer valve sleeve, and the most wrong on inner valve sleeve, middle valve pocket, outer valve sleeve
Position is provided with throttle orifice.
Further, described throttle orifice is shoulder hole, and throttle orifice includes discharge orifice and interlayer release aperture.
Further, described spool is decontroled and has pressure balance through hole, and be provided with close at spool with inner valve sleeve contact surface
Seal.
Further, described inner valve sleeve, middle valve pocket are connected by screw with outer valve sleeve.
Further, it is additionally provided with metal hard-sealing valve seat in described valve body, and on valve seat, has sealing ring mounting groove,
And connection has soft seal circle.
Further, described metal hard-sealing valve seat contacts formation hard sealing surface and soft respectively with soft seal circle with inner valve sleeve
Sealing surface.
The beneficial effects of the utility model are: this utility model is designed with the telescopic valve pocket of multistage flaring, by inner valve sleeve,
Middle valve pocket, outer valve sleeve assemble, and have all shifted to install throttle orifice on inner valve sleeve, middle valve pocket, outer valve sleeve.Labyrinth is utilized to fold
Chip multichannel porous gradual-enlargement type classification buck configuration principle, flows through bend hole, a series of right angle by forced medium and makes flow velocity obtain
To controlling completely, reach step pressure reducing, control flow and the purpose of pressure.No matter pressure drop size, the resistance of these bends makes
The speed obtaining medium outflow multichannel porous lamination core bag is restricted.Through multilevel decompression, the pressure of medium is made to maintain all the time
On the saturated pressure for vaporization of medium, thus avoid cavitation phenomenons, eliminate unsafe factor.
Secondly, throttle orifice of the present utility model is shoulder hole, and throttle orifice includes discharge orifice and interlayer release aperture.Flow through
After discharge orifice, medium has enough spaces to carry out slow release in interlayer release aperture, reduces flow velocity, makes medium through per pass set
During cylinder, it is divided into thread.Medium reduces pressure by the reducing of prime hole；After flowing through hole, owing to there are bigger space, flow velocity in rear
Lowered.When being further continued for towards rear class, due to the dislocation of throttle orifice, medium corner, flow velocity reduces further.Through rear class
During throttle orifice, pressure reduces further, by that analogy.
Accompanying drawing explanation
Fig. 1 is the flow control valve structure schematic diagram that this utility model provides.
Fig. 2 is the close-up schematic view in Fig. 1 at I.
Labelling in figure: 1 be valve body, 2 be spool, 3 be valve rod, 4 be support, 5 be inner valve sleeve, 6 be middle valve pocket, 7 for outer valve
Set, 8 be discharge orifice, 9 for interlayer release aperture, 10 be screw.
Detailed description of the invention
With specific embodiment, this utility model is described further below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of flow control valve, it is characterised in that: the support 4 that include valve body 1, is arranged in valve body 1, set
Put the valve rod 3 in support 4；Connect below described valve rod 3 and have a spool 2, and be provided with in valve body 1 and coordinate many with spool 2
The level telescopic valve pocket of flaring, the telescopic valve pocket of multistage flaring is assembled by inner valve sleeve 5, middle valve pocket 6, outer valve sleeve 7, and at internal valve
Throttle orifice has all been shifted to install on set 5, middle valve pocket 6, outer valve sleeve 7.
Described throttle orifice is shoulder hole, and throttle orifice includes discharge orifice 8 and interlayer release aperture 9.Decontrol on described spool 2
There is pressure balance through hole, and spool 2 and inner valve sleeve 5 contact surface are provided with sealing ring.Described inner valve sleeve 5, middle valve pocket 6 and outer valve
Set 7 is connected by screw 10.It is additionally provided with metal hard-sealing valve seat in described valve body 1, and on valve seat, has sealing ring installation
Groove, and connect have soft seal circle.Described metal hard-sealing valve seat contacts the hard sealing surface of formation respectively with soft seal circle with inner valve sleeve 5
And soft sealing face.
In use, this utility model is designed with the telescopic valve pocket of multistage flaring, by inner valve sleeve 5, middle valve pocket 6, outer valve sleeve 7
Assemble, and all shifted to install throttle orifice on inner valve sleeve 5, middle valve pocket 6, outer valve sleeve 7, form stacked multichannel porous gradually
Expansion formula labyrinth.When medium flows into from valve inlet, and labyrinth uses classification buck configuration principle, is flowed through a series of by forced medium
Bend hole, right angle make flow velocity be controlled completely, reach step pressure reducing, control flow and the purpose of pressure.No matter pressure drop is big
Little, the speed that the resistance of these bends makes medium flow out multichannel porous lamination core bag is restricted.Through multilevel decompression, make Jie
The pressure of matter maintains on the saturated pressure for vaporization of medium all the time, thus avoids cavitation phenomenons, eliminates unsafe factor.
Secondly, throttle orifice of the present utility model is shoulder hole, and throttle orifice includes discharge orifice 8 and interlayer release aperture 9.Stream
After crossing discharge orifice 8, medium has enough spaces to carry out slow release in interlayer release aperture 9, reduces flow velocity, makes medium through every
During road sleeve, it is divided into thread.Medium reduces pressure by the reducing of prime hole；After flowing through hole, owing to there is bigger space at rear,
Flow velocity is lowered.When being further continued for towards rear class, due to the dislocation of throttle orifice, medium corner, flow velocity reduces further.Through later
Level throttle orifice time, pressure reduces further, by that analogy.Particularly when operating mode is severe especially, multilevel decompression can be used,
It is allowed to blood pressure lowering ability strengthen further.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
1. a flow control valve, it is characterised in that: include valve body, the support being arranged in valve body, the valve that is arranged in support
Bar；Connect below described valve rod and have spool, and in valve body, be provided with the telescopic valve pocket of multistage flaring coordinated with spool, multistage
The telescopic valve pocket of flaring is assembled by inner valve sleeve, middle valve pocket, outer valve sleeve, and all misplaces on inner valve sleeve, middle valve pocket, outer valve sleeve
It is provided with throttle orifice.
Flow control valve the most according to claim 1, it is characterised in that: described throttle orifice is shoulder hole, and throttle orifice bag
Include discharge orifice and interlayer release aperture.
Flow control valve the most according to claim 1, it is characterised in that: decontrol on described spool and have pressure balance through hole,
And spool and inner valve sleeve contact surface are provided with sealing ring.
Flow control valve the most according to claim 1, it is characterised in that: described inner valve sleeve, middle valve pocket pass through with outer valve sleeve
Screw connects.
Flow control valve the most according to claim 1, it is characterised in that: it is additionally provided with metal hard-sealing valve in described valve body
Seat, and on valve seat, have sealing ring mounting groove, and connection has soft seal circle.
Flow control valve the most according to claim 5, it is characterised in that: described metal hard-sealing valve seat divides with soft seal circle
The hard sealing surface of formation and soft sealing face is not contacted with inner valve sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803803.5U CN205824224U (en) | 2016-07-28 | 2016-07-28 | A kind of flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803803.5U CN205824224U (en) | 2016-07-28 | 2016-07-28 | A kind of flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824224U true CN205824224U (en) | 2016-12-21 |
Family
ID=57557330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620803803.5U Active CN205824224U (en) | 2016-07-28 | 2016-07-28 | A kind of flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906251A (en) * | 2017-12-18 | 2018-04-13 | 青岛电站阀门有限公司 | High-differential-pressure regulating valve |
| CN110657251A (en) * | 2019-09-23 | 2020-01-07 | 山东菲特自控阀门制造有限公司 | Series connection valve core double sealing surface multistage pressure reduction regulating valve |
-
2016
- 2016-07-28 CN CN201620803803.5U patent/CN205824224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906251A (en) * | 2017-12-18 | 2018-04-13 | 青岛电站阀门有限公司 | High-differential-pressure regulating valve |
| CN110657251A (en) * | 2019-09-23 | 2020-01-07 | 山东菲特自控阀门制造有限公司 | Series connection valve core double sealing surface multistage pressure reduction regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |