CN205578757U - Multi stage decompression high pressure angle valve - Google Patents
Multi stage decompression high pressure angle valve Download PDFInfo
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- CN205578757U CN205578757U CN201520839519.9U CN201520839519U CN205578757U CN 205578757 U CN205578757 U CN 205578757U CN 201520839519 U CN201520839519 U CN 201520839519U CN 205578757 U CN205578757 U CN 205578757U
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Abstract
The utility model provides a multi stage decompression high pressure angle valve, includes valve body, sleeve and case, and the sleeve is installed in the valve body, and the case is installed in the sleeve, its characterized in that: the case comprises valve core head portion, valve element and case afterbody, wherein is provided with the groove and the ring of the trapezium structure of handing over misalignment cloth on the valve element, be provided with in the sleeve with groove and ring assorted ring channel, case and telescopic central line parallel with the runner that the axial flows. Adopt multistage, runner that the axial flows, the flow direction is on a parallel with case and telescopic central line. Processing has " trapezoidal " groove and the ring of handing over misalignment cloth on the case, and it has the ring channel to correspond processing on the sleeve. Fluid pressure reduces when case length direction flows step by step, and the pressure drop is shared on a plurality of ladders, just so can adapt to harsher process consideration and increase the life of valve internals.
Description
Technical field
This utility model relates to a kind of valve, is specifically related to a kind of multilevel decompression angle valve for high pressure occasion, belongs to plant equipment automatic control technology field.
Background technology
The principle of sleeve type high-pressure angle valve is: by spool sliding up and down in sleeve, regulate flow.Ordinary cartridge does not has antihypertensive effect, or antihypertensive effect is poor, and when being used in high pressure occasion, fluid flows fast through throttle part, easily forms cavitation and cavitation erosion, can cause throttle part and seriously wash away, be substantially reduced the life-span of valve.
Currently also having the sleeve of a kind of multilevel decompression, the sleeve of this valve is which floor to have open foraminate cylinder constitute.Cavity between layers is utilized to recover fluid pressure.When fluid is by valve, alternating expansion and compression several times, flow through progressively blood pressure lowering after multi-stag sleeve, in order to while reduction of blood pressure in high-speed, reduce noise.But fluid enters same pressure through multiple passages recovers die cavity, and fluid can not be estimated by expansion rate during aperture accurately and control.And, good antihypertensive effect to be reached, need runner to have a lot of break-in passages, cause this sleeve to manufacture difficulty the biggest.
Utility model content
For there being the defect of technology on overcoming, this utility model is called on is providing one to be adapted to High Temperature High Pressure multilevel decompression high-pressure angle valve.
For achieving the above object, this utility model uses such as purgation technical scheme:
A kind of multilevel decompression high-pressure angle valve, including valve body, valve gap, sleeve and spool, sleeve is arranged in valve body, spool is arranged in sleeve, it is characterized in that: described spool is made up of poppet head, spool main body and spool afterbody, wherein in spool main body, be provided with groove and the ring of staggered trapezium structure；The cannelure matched with described groove and ring it is provided with in described sleeve；The centrage of spool and sleeve is paralleled with the runner of axially flowing.
Further: to use full silk stud and heavy series hexagon nut to be fixed between described valve gap and valve body, and valve gap packing ring is installed between valve gap and valve body, valve washer is installed between valve gap and sleeve.
Owing to technique scheme is used, this utility model has the advantage that
This utility model uses the runner of flowing multistage, axial, flows to be parallel to the centrage of spool and sleeve.Being machined with staggered " trapezoidal " groove and ring on spool, on sleeve, correspondence is machined with cannelure.Fluid pressure reduces when flowing in valve core length direction step by step, and pressure drop is shared on multiple ladders, is thus adapted to harsher process conditions and increases the service life of trim.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the perspective cross-sectional schematic diagram of Fig. 1 middle sleeve.
Fig. 3 is the schematic perspective view of spool in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Embodiment: shown in Figure 1:
A kind of multilevel decompression high-pressure angle valve, including valve body 1, valve seat 3, valve gap 2, valve rod 5, sleeve 6 and spool 4, wherein it is provided with cavity in valve body 1, valve body is provided with left channel, lower wing passage and valve seat 3 and enters the assembling passage of valve body 1, wherein when fluid is liquid, flowing to flow into from left channel, lower wing passage flows out；Flowing into from lower wing passage when fluid is gas or steam, left channel flows out.Valve seat 3 enters described cavity along assembling passage and is arranged on cavity bottom, sleeve 6 enters described cavity along assembling passage and is arranged on valve seat 3 equally, passage on sleeve 6, the passage on valve seat 3 and lower wing passage are interconnected and are positioned on same vertical line, wherein: be mounted on valve washer 7 between valve seat 3 and valve body 1, valve seat 3 and sleeve 6；Valve gap 2 is arranged on the upper end of valve body 1, and uses full silk stud 9 and heavy series hexagon nut 10 to be fixed on valve body 1, and wherein valve gap 2 and valve body 1 intersection are provided with valve gap packing ring 8, and valve gap 2 and sleeve 6 intersection are provided with valve washer 7；Valve rod 5 inserts in sleeve 6 from valve gap 2 top so that it is can drive the spool 4 being positioned at sleeve 6；Stuffing-box is installed between valve gap 2 top and valve rod 5.
In order to preferably control fluid pressure, as shown in Figure 3 spool 4 is correspondingly improved, be specially by poppet head be taper seat, spool afterbody be that cylindrical shape is constant, made into staggered " trapezoidal " groove 42 and ring by original annular groove in spool main body 41, and sleeve 6 is revised accordingly, as shown in Figures 2 and 3, it is machined with cannelure in the passage to sleeve 6.During use, spool 4 being machined with staggered " trapezoidal " groove and ring, on sleeve 6, correspondence is machined with cannelure.Both compositions flow to be parallel to the shaft orientation flowing channel of the centrage of spool and sleeve, and fluid forms flowing vertically and the flowing around spool 4 in this runner.
Technical solutions of the utility model use the runner of flowing multistage, axial, flow to be parallel to the centrage of spool and sleeve.Being machined with staggered " trapezoidal " groove and ring on spool, on sleeve, correspondence is machined with cannelure.Fluid pressure reduces when flowing in valve core length direction step by step, and pressure drop is shared on multiple ladders, is thus adapted to harsher process conditions and increases the service life of trim.The spool of this structure and sleeve combination, blood pressure lowering fall is assigned on multiple ladder, is effectively prevented cavitation and cavitation erosion.It addition, the processing of this trim is easier to realize than existing perforated sleeve, and being structurally more suitable in fluid the medium containing granule, the scope of application is more extensive.
When spool stroke and valve core movement, fluid passage is opened the discharge characteristic of area and valve and is had functional relation.The area that particularly fluid passage is opened is proportional to spool stroke.The negotiability of the circulation area decision valve that valve is total, in this multilevel decompression high-pressure angle valve, along with moving up and down of spool, circulation area gradually changes, and discharge characteristic can be designed to linearly, or improved linearity.
Claims (2)
1. a multilevel decompression high-pressure angle valve, including valve body, valve gap, sleeve and spool, sleeve is arranged in valve body, spool is arranged in sleeve, it is characterized in that: described spool is made up of poppet head, spool main body and spool afterbody, wherein in spool main body, be provided with groove and the ring of staggered trapezium structure；The cannelure matched with described groove and ring it is provided with in described sleeve；The centrage of spool and sleeve is paralleled with the runner of axially flowing.
A kind of multilevel decompression high-pressure angle valve the most according to claim 1, it is characterized in that, use full silk stud and heavy series hexagon nut to be fixed between described valve gap and valve body, and valve gap packing ring is installed between valve gap and valve body, valve washer is installed between valve gap and sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839519.9U CN205578757U (en) | 2015-10-28 | 2015-10-28 | Multi stage decompression high pressure angle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839519.9U CN205578757U (en) | 2015-10-28 | 2015-10-28 | Multi stage decompression high pressure angle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578757U true CN205578757U (en) | 2016-09-14 |
Family
ID=56882053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520839519.9U Active CN205578757U (en) | 2015-10-28 | 2015-10-28 | Multi stage decompression high pressure angle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578757U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404606A (en) * | 2018-12-29 | 2019-03-01 | 吴忠仪表有限责任公司 | Pressure balance type high-precision high voltage difference control valve |
| CN109505988A (en) * | 2018-12-07 | 2019-03-22 | 华润电力（贺州）有限公司 | A kind of high-pressure multi-stage pressure reducing valve |
| CN112412565A (en) * | 2020-12-08 | 2021-02-26 | 陈谦 | Air throttle that drum-type admitted air |
-
2015
- 2015-10-28 CN CN201520839519.9U patent/CN205578757U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505988A (en) * | 2018-12-07 | 2019-03-22 | 华润电力（贺州）有限公司 | A kind of high-pressure multi-stage pressure reducing valve |
| CN109404606A (en) * | 2018-12-29 | 2019-03-01 | 吴忠仪表有限责任公司 | Pressure balance type high-precision high voltage difference control valve |
| CN112412565A (en) * | 2020-12-08 | 2021-02-26 | 陈谦 | Air throttle that drum-type admitted air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multi stage decompression high pressure angle valve Effective date of registration: 20170313 Granted publication date: 20160914 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Squall automatic control equipment Co., Ltd Registration number: 2017990000185 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211125 Granted publication date: 20160914 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI SCORE AUTOMATIC CONTROL EQUIPMENT CO.,LTD. Registration number: 2017990000185 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |