CN205859197U - Cascade multi-level throttle equilibrated valve - Google Patents
Cascade multi-level throttle equilibrated valve Download PDFInfo
- Publication number
- CN205859197U CN205859197U CN201620780001.7U CN201620780001U CN205859197U CN 205859197 U CN205859197 U CN 205859197U CN 201620780001 U CN201620780001 U CN 201620780001U CN 205859197 U CN205859197 U CN 205859197U
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- valve
- spool
- valve core
- flow
- core housing
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Abstract
A kind of Cascade multi-level throttle equilibrated valve, including: valve gap, valve body, valve rod, spool, valve core housing；Spool has vertical balance pipe, balance pipe upper end is used for accommodating the cavity communication of spool with valve gap, the inner side of balance pipe lower end and valve core sealed cover is linked up, when this valve opening or shutoff, fluid inside valve core sealed cover can enter the cavity of above-mentioned valve gap by balance pipe and spool is applied thrust, thus balance the pressure outside part valve core sealed cover, it is achieved the miniaturization of actuator.
Description
Technical field:
This utility model relates to flow control valve technical field, particularly to a kind of Cascade multi-level throttle pressure balance
Valve.
Background technology:
Be currently used under high pressure differential environment multi-level throttle regulation valve in valve opening or closing process, sealing surface both sides
There is huge pressure reduction so that in order to enable effectively to close and the most opening/closing, need to be equipped with large-scale execution machine for valve
Structure, so makes the overall cost of valve greatly improve, and is difficult to be suitable in the place of some limited space.
Summary of the invention:
In consideration of it, be necessary to design a kind of Cascade multi-level throttle equilibrated valve that can overcome disadvantages described above.
A kind of Cascade multi-level throttle equilibrated valve, including: valve gap, valve body, valve rod, spool, valve core housing；
Wherein, spool is divided into upper and lower two parts with sealing surface for boundary；Top spool includes two-stage cylinder, and is positioned at lower section
Second level cylindrical radius is more than first order cylinder above it；Second level cylindrical base has one week oblique angle to be formed obliquely
Sealing surface；Bottom spool is the polyhedral structure processed on a cylinder matrix, at a certain distance can under sealing surface
Having a flow restriction control face, the spool between sealing surface and flow restriction control face, between flow restriction control face and flow restriction control face passes through
Throttling profile transition；Valve core axis has through balance pipe, has a linked hole at upper valve in-core, linked hole one end with
Balance pipe is through, and the linked hole other end is opened on first order cylinder side wall；
Valve core housing is the cylinder of hollow, and valve core housing two ends and valve core housing inwall have a plurality of ring protruding to valve core housing axis
Shape rib structure, this rib structure is that flow reconciles unit, and the internal diameter that the flow of valve core housing upper end reconciles unit is straight with second level cylinder
Footpath is mated, and remaining flow is reconciled the internal diameter of unit and mated with lower valve core diameter, tight with the flow of valve core housing upper end conciliation unit
Adjacent flow is reconciled has, on unit, the one week oblique angle matched with valve core sealed cover, and the flow in valve core housing upper end reconciles unit
Radially it is placed with rate-of flow hole on the wall of lower section；
Have valve-rod cavity and the spool chamber of UNICOM at valve gap axis, valve-rod cavity internal diameter mates with valve rod, spool chamber internal diameter with
Second level cylinder coupling；Having spool mantle cavity on valve body, spool mantle cavity top, bottom are mated with valve core housing external diameter with fixed spool
Set, leaves gap with valve core housing outer wall in the middle part of spool mantle cavity, what the lower section of spool mantle cavity had a coupling cock core retainer plate chamber goes out medium stream
Road, what the middle part of spool mantle cavity had a coupling cock core retainer plate chamber enters medium runner；Valve rod stretches in valve-rod cavity, stem lower portion and spool
Fixing.
Preferably, valve gap, valve body joint portion cavity in be additionally provided with lining, lining is that annular casing is at second level cylinder
Outward, lining is embedded with no less than two sealing rings, a sealing ring and valve bonnet seal, another sealing ring and seal spool.
This utility model is when opening or turn off, and the fluid going out medium runner can pass through balance pipe-linked hole entrance valve
Core cavity applies thrust to spool, thus balances part and enter the pressure of medium runner, it is achieved the miniaturization of actuator.
Accompanying drawing illustrates:
Accompanying drawing 1 is the sectional structure schematic diagram of the Cascade multi-level throttle equilibrated valve of a width better embodiment.
Accompanying drawing 2 is the structural representation of the valve rod of a width better embodiment.
Accompanying drawing 3 be the spool of a width better embodiment partly cut open structural representation.
Accompanying drawing 4 is the sectional structure schematic diagram of the valve core housing of a width better embodiment.
In figure: valve gap 1, valve body 2, valve rod 3, spool 4, valve core housing 5, top spool 41, first order cylinder 411, the second level
Cylinder 412, sealing surface 4121, bottom spool 42, flow restriction control face 421, throttling profile 422, balance pipe 43, linked hole 44, stream
Amount is reconciled unit 51, rate-of flow hole 52, spool chamber 11, spool mantle cavity 21, is gone out medium runner 22, enters medium runner 23, lining
6, sealing ring 61.
Detailed description of the invention:
As shown in accompanying drawing 1～4, a kind of Cascade multi-level throttle equilibrated valve, including: valve gap 1, valve body 2, valve rod 3, valve
Core 4, valve core housing 5；
Wherein, spool 4 is divided into upper and lower two parts with sealing surface 4121 for boundary；Top spool 41 includes two-stage cylinder, and position
Second level cylinder 412 radius in lower section is more than first order cylinder 411 above it；One is had bottom second level cylinder 412
Week oblique angle formation sealing surface 4121 obliquely；Bottom spool 42 is the polyhedron knot processed on a cylinder matrix
Structure, sealing surface has a flow restriction control face 421 for 4121 times at a certain distance, sealing surface 4121 and flow restriction control face 421 it
Between, spool 4 between flow restriction control face 421 and flow restriction control face 421 is by throttling profile 422 transition；Spool 4 axis is opened
Having through balance pipe 43, have linked hole 44 in top spool 41, linked hole 44 one end is through with balance pipe 43, linked hole
44 other ends are opened on first order cylinder 411 sidewall, and in the present embodiment, first order cylinder 411 leads to second level cylinder 412
Cross conical surface transition；
Valve core housing 5 is the cylinder of hollow, and valve core housing 5 two ends and valve core housing 5 inwall have a plurality of protruding to valve core housing 5 axis
Cyclic rib structure, this rib structure is that flow reconciles unit 51, and the flow of valve core housing 5 upper end reconciles the internal diameter and the of unit 51`
Two grades of cylinder 412 diameter matches, remaining flow reconciles internal diameter and bottom spool 42 diameter matches of unit 51, and on valve core housing 5
The flow of end is reconciled has, on the flow conciliation unit of unit 51` next-door neighbour, the one week oblique angle matched with valve core sealed cover 4121,
Flow in valve core housing 5 upper end is reconciled and is radially placed with rate-of flow hole 52 on the wall below unit 51`；
Have valve-rod cavity and the spool chamber 11 of UNICOM at valve gap 1 axis, valve-rod cavity internal diameter mates with valve rod 3, spool chamber 11
Internal diameter mates with second level cylinder 412；Spool mantle cavity 21 is had, outside spool mantle cavity 21 top, bottom are with valve core housing 5 on valve body 2
Footpath is mated with standing valve core retainer plate 5, leaves gap with valve core housing 5 outer wall in the middle part of spool mantle cavity 21, and the lower section of spool mantle cavity 21 has
Coupling cock core retainer plate chamber 21 go out medium runner 22, what the middle part of spool mantle cavity 21 had a coupling cock core retainer plate chamber 21 enters medium runner
23；Valve rod 3 stretches in valve-rod cavity, and valve rod 3 bottom is fixed with valve 4.
In the present embodiment, valve gap 1, valve body 2 joint portion cavity in be additionally provided with lining 6, lining 6 is that annular casing exists
Outside second level cylinder 412, lining 6 being embedded with no less than two sealing rings 61, a sealing ring 61 seals with valve gap 1, another
Sealing ring 61 seals with spool 4.
Claims (2)
1. a Cascade multi-level throttle equilibrated valve, it is characterised in that including: valve gap, valve body, valve rod, spool, spool
Set；
Wherein: spool is divided into upper and lower two parts with sealing surface for boundary；Top spool includes two-stage cylinder, and is positioned at the second of lower section
Level cylindrical radius is more than first order cylinder above it；Second level cylindrical base has one week oblique angle to form sealing obliquely
Face；Bottom spool is the polyhedral structure processed on a cylinder matrix, has one under sealing surface at a certain distance
Individual flow restriction control face, the spool between sealing surface and flow restriction control face, between flow restriction control face and flow restriction control face is by throttling
Profile transition；Valve core axis has through balance pipe, has linked hole, linked hole one end and balance at upper valve in-core
Hole is through, and the linked hole other end is opened on first order cylinder side wall；
Valve core housing is the cylinder of hollow, and valve core housing two ends and valve core housing inwall have a plurality of cyclic rib protruding to valve core housing axis
Structure, this rib structure is that flow reconciles unit, and the flow of valve core housing upper end reconciles internal diameter and the second level body diameter of unit
Joining, remaining flow is reconciled the internal diameter of unit and is mated with lower valve core diameter, reconciles unit next-door neighbour's with the flow of valve core housing upper end
Flow is reconciled has, on unit, the one week oblique angle matched with valve core sealed cover, and the flow in valve core housing upper end is reconciled below unit
Wall on be radially placed with rate-of flow hole；
Have valve-rod cavity and the spool chamber of UNICOM at valve gap axis, valve-rod cavity internal diameter mates with valve rod, spool chamber internal diameter and second
Level cylinder coupling；Having spool mantle cavity on valve body, spool mantle cavity top, bottom are mated with standing valve core retainer plate with valve core housing external diameter,
Leave gap in the middle part of spool mantle cavity with valve core housing outer wall, what the lower section of spool mantle cavity had a coupling cock core retainer plate chamber goes out medium runner,
What the middle part of spool mantle cavity had a coupling cock core retainer plate chamber enters medium runner；Valve rod stretches in valve-rod cavity, and stem lower portion is solid with spool
Fixed.
2. Cascade multi-level throttle equilibrated valve as claimed in claim 1, it is characterised in that in valve gap, valve body joint portion
Cavity in be additionally provided with lining, lining be annular casing outside the cylinder of the second level, lining is embedded with no less than two sealing rings, one
Sealing ring and valve bonnet seal, another sealing ring and seal spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620780001.7U CN205859197U (en) | 2016-07-24 | 2016-07-24 | Cascade multi-level throttle equilibrated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620780001.7U CN205859197U (en) | 2016-07-24 | 2016-07-24 | Cascade multi-level throttle equilibrated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205859197U true CN205859197U (en) | 2017-01-04 |
Family
ID=57649475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620780001.7U Active CN205859197U (en) | 2016-07-24 | 2016-07-24 | Cascade multi-level throttle equilibrated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205859197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114729704A (en) * | 2019-12-10 | 2022-07-08 | 舍弗勒技术股份两合公司 | Valve and device for controlling the pressure of a flowing medium |
-
2016
- 2016-07-24 CN CN201620780001.7U patent/CN205859197U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114729704A (en) * | 2019-12-10 | 2022-07-08 | 舍弗勒技术股份两合公司 | Valve and device for controlling the pressure of a flowing medium |
| US12044330B2 (en) | 2019-12-10 | 2024-07-23 | Schaeffler Technologies AG & Co. KG | Valve and device for controlling pressures of a flow medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |