CN106286918A - Ultra-high-pressure overflow valve - Google Patents
Ultra-high-pressure overflow valve Download PDFInfo
- Publication number
- CN106286918A CN106286918A CN201610758277.XA CN201610758277A CN106286918A CN 106286918 A CN106286918 A CN 106286918A CN 201610758277 A CN201610758277 A CN 201610758277A CN 106286918 A CN106286918 A CN 106286918A
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- CN
- China
- Prior art keywords
- valve
- valve seat
- spool
- oil
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention proposes a kind of ultra-high-pressure overflow valve, including valve body, valve seat, spool, spring, spring base, oil-feed screw, regulation screw, locking nut, valve gap and sealing ring.Valve seat is assemblied in oil-feed screw oil outlet end, and spool coordinates with valve seat, all uses metal conical surface hard sealing structure to realize sealing, and the cavity volume between spool and valve seat connects low pressure oil duct between oil-feed screw and valve seat, valve seat and valve body, spool and valve seat.Spring is installed between spool and spring base, and spring base is contained in valve gap, and valve gap uses with valve body threadeds, and regulation screw is screwed in valve gap, can be adjusted the unlatching pressure of overflow valve by regulation regulation screw.Owing to oil-feed screw all uses the metal conical surface hard Seal Design with valve body, spool with valve seat with valve seat, valve seat, cavity volume between spool and valve seat connects low pressure oil duct simultaneously, therefore this overflow valve has the rated pressure of superelevation, can be used for the Stress control of high pressure co-rail system or other extra high voltage systems.
Description
Technical field
The present invention relates to a kind of overflow valve, particularly relate to the ultra-high-pressure overflow valve that operating pressure is the highest.
Background technology
Overflow valve is frequently utilized for the operating pressure of stabilisation systems, uses the most universal at machine industry.Common overflows
Generally using sealing ring in stream valve internal structure to seal, when pressure is the highest, sealing ring the most easily lost efficacy, the most commonly
Overflow valve rated pressure relatively low, it is impossible to for super-high pressure work occasion.
Summary of the invention
For the technical problem that existing common overflow valve rated pressure is relatively low, the present invention proposes a kind of ultra-high-pressure overflow valve,
By changing the sealing structure between parts, making overflow valve have the rated pressure of superelevation, maximum pressure is up to 250MPa.
It is an object of the invention to be achieved through the following technical solutions:
A kind of ultra-high-pressure overflow valve, including valve body, valve seat, spool, spring, spring base, oil-feed screw, regulation screw, locking screw
Mother, valve gap and sealing ring.
Described oil-feed screw is assemblied in valve body, and valve seat is assemblied in its oil outlet end, oil-feed screw and valve seat, valve seat and valve body
Between all use metal conical surface hard sealing structure realize seal.
Described spool coordinates with valve seat, is also adopted by metal conical surface hard sealing structure between the two and realizes sealing, and spool
With the cavity volume between valve seat connects low pressure oil duct.
Described spring is installed between spool and spring base, and spring base is contained in valve gap, and valve gap and valve body use screw thread even
Connecing, spring base is withstood in being screwed into valve gap in the front end of regulation screw, can regulate initial tension of spring by regulation regulation screw, and then
Being adjusted the unlatching pressure of overflow valve, regulation screw is locked outside valve gap by locking nut.
It is provided with sealing ring between described spring base and valve gap, valve gap and valve body to seal.
Preferably, described spool uses cone valve and ball-valve structure.
Preferably, oil-feed screw inner flow passage is provided with the conical surface, uses with external high pressure oil pipe simultaneously and threadeds, in order to be real
Existing high pressure sealing.
Beneficial effects of the present invention is as follows:
This ultra-high-pressure overflow valve all uses the metal conical surface the closeest with valve body, valve seat with spool with valve seat, valve seat due to oil-feed screw
Envelope design, cavity volume between spool and valve seat connects low pressure oil duct simultaneously, therefore has the rated pressure of superelevation, and overflow valve is
High pressure, up to 250Mpa, may be used for the super-high pressure work occasion that common overflow valve cannot work, such as high pressure co-rail system
Rail cavity pressure control etc..
Accompanying drawing explanation
Including inventing two width accompanying drawings, the drawing of these accompanying drawings is described as follows:
Fig. 1 is the structure chart of ultra-high-pressure overflow valve；
Fig. 2 is the outline drawing of ultra-high-pressure overflow valve.
Detailed description of the invention
It will be seen from figure 1 that the basic structural components of ultra-high-pressure overflow valve include valve body 10, valve seat 9, spool 8, spring 7,
Spring base 5, oil-feed screw 11, regulation screw 1, locking nut 2, valve gap 3, sealing ring 4,6 etc., their assembling structure is as follows:
The oil outlet end of oil-feed screw 11 is assemblied in valve body 10, is close to its oil outlet end assembling valve seat 9, the center oil of oil-feed screw 11
Hole communicates with the center oilhole of valve seat 9, uses metal conical surface hard sealing structure A to realize sealing between oil-feed screw 11 and valve seat 9.
Oil-feed screw inner flow passage is provided with the conical surface, uses with external high pressure oil pipe simultaneously and threadeds, in order to realizes high pressure sealing.
Valve seat 9 is also adopted by metal conical surface hard sealing structure A realization sealing with the assembling position of valve body 10.
Valve seat 9 front end assembling spool 8, is also adopted by metal conical surface hard sealing structure A between the two and realizes sealing, and spool
With the cavity volume B between valve seat connects low pressure oil duct C.It is cone valve that spool can use in cone valve or ball-valve structure, this example.
Spring 7 is installed between spool 8 and spring base 5, and spring base 5 is contained in valve gap 3.Arrange between spring base and valve gap
Sealing ring 4 is had to seal.
Valve gap 3 uses with valve body 10 threadeds, and is provided with sealing ring 6 between the two and seals.
Spring base 5 is withstood in being screwed into valve gap 3 in the front end of regulation screw 1, can regulate spring 7 by regulation regulation screw 1
Pretightning force, and then the unlatching pressure of overflow valve is adjusted, regulation screw 1 is locked outside valve gap 3 by locking nut 2.
The operation principle of this ultra-high-pressure overflow valve is as follows:
Hydraulic oil flows into from oil-feed screw, and consequent pressure acts on spool, and spring force in spool left end effect.When entering
When the active force that oil pressure produces is more than spring force, spool is opened, and overflow valve is started working.Regulation regulation screw, thus it is possible to vary
The size of spring force, thus realize ultra-high-pressure overflow valve is opened the regulation of pressure.
Owing to the hydraulic oil between oil-feed runner is all realized hard sealing, the volume between spool and valve seat by the metal conical surface
Chamber is owing to connecting low pressure oil duct, and therefore the pressure in this chamber is relatively low, two sealing rings seal.
Claims (4)
1. a ultra-high-pressure overflow valve, including valve body, valve seat, spool, spring, spring base, oil-feed screw, regulation screw, locking
Nut, valve gap and sealing ring, it is characterised in that: described oil-feed screw is assemblied in valve body, and valve seat is assemblied in its oil outlet end, oil-feed
Metal conical surface hard sealing structure is all used to realize sealing between screw and valve seat, valve seat and valve body；Described spool coordinates with valve seat,
It is also adopted by metal conical surface hard sealing structure between the two to realize sealing, and the cavity volume between spool and valve seat connects low pressure oil
Road；Described spring is installed between spool and spring base, and spring base is contained in valve gap, and valve gap uses with valve body threadeds, and adjusts
Spring base is withstood in being screwed into valve gap in the front end of joint screw, can regulate initial tension of spring by regulation regulation screw, and then to overflowing
The unlatching pressure of stream valve is adjusted, and regulation screw is locked outside valve gap by locking nut；Described spring base and valve gap, valve gap
And it is provided with sealing ring between valve body to seal.
Ultra-high-pressure overflow valve the most according to claim 1, it is characterised in that: described spool uses cone valve and ball valve knot
Structure.
Ultra-high-pressure overflow valve the most according to claim 1, it is characterised in that: oil-feed screw inner flow passage is provided with the conical surface, with
Time with external high pressure oil pipe use threaded, in order to realize high pressure sealing.
Ultra-high-pressure overflow valve the most according to claim 1, it is characterised in that: described overflow valve maximum pressure reaches 250MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758277.XA CN106286918A (en) | 2016-08-30 | 2016-08-30 | Ultra-high-pressure overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758277.XA CN106286918A (en) | 2016-08-30 | 2016-08-30 | Ultra-high-pressure overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106286918A true CN106286918A (en) | 2017-01-04 |
Family
ID=57675353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610758277.XA Pending CN106286918A (en) | 2016-08-30 | 2016-08-30 | Ultra-high-pressure overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286918A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561360A (en) * | 2018-06-04 | 2018-09-21 | 中国石油化工股份有限公司 | A kind of overflow valve |
| CN108644170A (en) * | 2018-06-04 | 2018-10-12 | 中国石油化工股份有限公司 | A kind of adjustable plug-in safety overflow valve of safe pressure |
| CN113324077A (en) * | 2021-04-16 | 2021-08-31 | 江苏富鑫机械制造有限公司 | High-pressure safety overflow valve with stable sealing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3796228A (en) * | 1972-08-25 | 1974-03-12 | A Bedo | Relief valve |
| CN2086355U (en) * | 1990-05-05 | 1991-10-09 | 德州液压机具厂 | Super high-pressure differential pressure direct overflow valve |
| US20030106591A1 (en) * | 2001-11-16 | 2003-06-12 | Saurwein Albert C. | Unloading valve for ultra-high-pressure applications |
| US20080230729A1 (en) * | 2005-10-20 | 2008-09-25 | Dominique Costaz | Valve With Cushioned Opening System |
| CN201232785Y (en) * | 2008-05-08 | 2009-05-06 | 周重威 | Ultra-high pressure overflow valve |
| US20110114203A1 (en) * | 2008-07-08 | 2011-05-19 | Walvoil S.P.A. | Pressure relief valve |
| CN203784001U (en) * | 2014-04-16 | 2014-08-20 | 江苏二马液压元件有限公司 | Overflow valve |
| CN205978679U (en) * | 2016-08-30 | 2017-02-22 | 重庆红江机械有限责任公司 | Ultrahigh pressure relief valve |
-
2016
- 2016-08-30 CN CN201610758277.XA patent/CN106286918A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3796228A (en) * | 1972-08-25 | 1974-03-12 | A Bedo | Relief valve |
| CN2086355U (en) * | 1990-05-05 | 1991-10-09 | 德州液压机具厂 | Super high-pressure differential pressure direct overflow valve |
| US20030106591A1 (en) * | 2001-11-16 | 2003-06-12 | Saurwein Albert C. | Unloading valve for ultra-high-pressure applications |
| US20080230729A1 (en) * | 2005-10-20 | 2008-09-25 | Dominique Costaz | Valve With Cushioned Opening System |
| CN201232785Y (en) * | 2008-05-08 | 2009-05-06 | 周重威 | Ultra-high pressure overflow valve |
| US20110114203A1 (en) * | 2008-07-08 | 2011-05-19 | Walvoil S.P.A. | Pressure relief valve |
| CN203784001U (en) * | 2014-04-16 | 2014-08-20 | 江苏二马液压元件有限公司 | Overflow valve |
| CN205978679U (en) * | 2016-08-30 | 2017-02-22 | 重庆红江机械有限责任公司 | Ultrahigh pressure relief valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561360A (en) * | 2018-06-04 | 2018-09-21 | 中国石油化工股份有限公司 | A kind of overflow valve |
| CN108644170A (en) * | 2018-06-04 | 2018-10-12 | 中国石油化工股份有限公司 | A kind of adjustable plug-in safety overflow valve of safe pressure |
| CN113324077A (en) * | 2021-04-16 | 2021-08-31 | 江苏富鑫机械制造有限公司 | High-pressure safety overflow valve with stable sealing |
| CN113324077B (en) * | 2021-04-16 | 2023-03-14 | 江苏富鑫机械制造有限公司 | High-pressure safety overflow valve with stable sealing |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |