CN103527828A - High-pressure safety valve special for oil field - Google Patents
High-pressure safety valve special for oil field Download PDFInfo
- Publication number
- CN103527828A CN103527828A CN201210229047.6A CN201210229047A CN103527828A CN 103527828 A CN103527828 A CN 103527828A CN 201210229047 A CN201210229047 A CN 201210229047A CN 103527828 A CN103527828 A CN 103527828A
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- oil field
- pressure safety
- valve rod
- 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.)
- Pending
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Classifications
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- 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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- 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
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
Abstract
The invention discloses a high-pressure safety valve special for an oil field. The high-pressure safety valve comprises a valve body and a valve rod. The valve rod is arranged in a valve cavity of the valve body. The lower end of the valve rod is connected to a valve flap through a spring base. The bottom of the valve flap is connected to the top of the valve base in an abutting mode, and the valve base is connected with the valve body at the same time. A disc-shaped spring is arranged on the outer periphery of the valve rod in a sleeved mode. The upper end of the disc-shaped spring is connected to the bottom of an adjusting thread sleeve at the upper end of the valve rod in an abutting-sleeved mode. The lower end of the disc-shaped spring is connected to the spring base. The adjusting thread sleeve is arranged at the upper end of the valve body through a connecting nut which is connected in a threaded mode. The high-pressure safety valve has the advantages of being novel in design, small in size, accurate in opening pressure, convenient to mount and maintain, durable and the like, high pressure resistance is achieved, and the high-pressure safety valve is the best product which is suitable for being arranged on an oil field ultrahigh-pressure booster pump for overpressure protection.
Description
Technical field
The present invention relates to valve, specifically oil field special high-pressure safety valve.
Background technique
The safety valve of currently available technology, be applied on the pipeline or pressurized container of protected system, to guarantee the Security of pipeline or pressurized container, but for oil field system, all there is certain defect in current safety valve, action is smooth not when opening or closing, and affects using effect; Can not be high pressure resistant, not anti-flow-induced corrosion, not wear-resisting, it is unreliable to seal, and working life is short; Bearing capacity is little, buffering shock resistance is bad etc.So for oil field occasion, the safety valve using must completely newly be developed.
In view of this, for the problems referred to above, propose a kind of reasonable in design and effectively improve the oil field special high-pressure safety valve of above-mentioned disappearance.
Summary of the invention
The object of the present invention is to provide oil field special high-pressure safety valve, this product has modern design, the advantage such as volume is little, high pressure resistant, cracking pressure is accurate, convenient for installation and maintenance, durable.To be applicable to be arranged in the ultrahigh-pressure intensifier of oil field, as the best product of overpressure protection.
In order to reach above-mentioned purpose, the present invention has adopted following technological scheme, and oil field special high-pressure safety valve, comprises valve body, valve rod, and described valve rod is arranged on the valve pocket inside of valve body; Described valve rod lower end is connected on flap by spring seat, and described flap bottom is connected to the top of the valve seat being connected with valve body simultaneously; Described valve rod periphery cover has spring, and this spring upper end is connected to the Adjusting bolt Adjusting screw bottom that is enclosed within valve rod upper end, and this spring lower end is connected on spring seat; The attaching nut that described Adjusting bolt Adjusting screw is threaded connection is arranged on valve body upper end.
Described valve rod and spring seat are integral type structure, and spring seat is the outwards outstanding circular platform structure with valve-stem integrated in valve rod lower end.
Described spring is belleville spring.
Inverted cone groove is offered at described flap top, and described spring seat bottom is connected in groove.
Described flap outer side wall is offered double density sealing groove, and in seal groove, mounting O-shaped rings is sealed between flap outer wall and valve interior wall.
Adjusting bolt Adjusting screw outside, described valve rod upper end screws the also cap that is placed in attaching nut top.
Described valve seat and valve clack sealing surface all adopt Hardmetal materials to refine and form.
Compared to prior art, the present invention has following beneficial effect:
A, design are when valve base cavity pressure surpasses permitted value, and flap is stressed after impact, promote spring seat and force spring to make compression movement, and flap is subjected to displacement, the sealing surface of lifting off a seat, and now this valve is opened and relieving pressure or medium automatically.
B, design, when valve base cavity pressure reaches specified value, are subject to the effect of belleville spring power, promote spring seat and valve clack sealing surface and sealing surface of seat reset, this valve hermetically closing timely and effectively automatically now, thus guaranteed the normal operation of equipment.
C, design valve seat and valve clack sealing surface all adopt that Hardmetal materials is refining to be formed, not only can be high pressure resistant, and there is the wear resistance of anti-fluid erosion, so sealability is reliable, long service life.
D, design O type circle are interval twice structure, and so duplicate protection, guarantees medium ne-leakage.Adopt attaching nut cap to coordinate Adjusting bolt Adjusting screw belleville spring to be regulated to the cracking pressure of this valve, accurately and reliably.
E, design adopt belleville spring, be because this spring be steel plate through the truncated cone shape compressive non-linearity spring of stamping-out machine shaping, there is stiffness and bearing capacity is large, the little and silk ribbon attached to an official seal or a medal of physical dimension rushes the advantages such as damping property is strong.
F, this product have modern design, the advantage such as volume is little, high pressure resistant, cracking pressure is accurate, convenient for installation and maintenance, durable.To be applicable to be arranged in the ultrahigh-pressure intensifier of oil field, as the best product of overpressure protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil field of the present invention special high-pressure safety valve.
In figure: 1, valve seat; 2, valve body; 3, flap; 4, spring seat; 5, O type circle; 6, belleville spring; 7, attaching nut; 8 and cap; 9, Adjusting bolt Adjusting screw, 10, valve rod.
Embodiment
Relevant detailed description of the present invention and technology contents, coordinate accompanying drawing to be described as follows, yet accompanying drawing only provides the use of reference with explanation, is not used for the present invention to be limited.
Shown in Fig. 1, oil field special high-pressure safety valve, comprises valve body 2, valve rod, and described valve rod is arranged on the valve pocket inside of valve body; Described valve rod lower end is connected on flap 3 by spring seat 4, and described flap 3 bottoms are connected to the top of the valve seat 1 being connected with valve body 2 simultaneously; Described valve rod periphery cover has belleville spring 6, and this belleville spring upper end is connected to Adjusting bolt Adjusting screw 9 bottoms that are enclosed within valve rod upper end, and these belleville spring 6 lower ends are connected on spring seat 4; Described valve rod and spring seat are integral type structure, and spring seat is the outwards outstanding circular platform structure with valve-stem integrated in valve rod lower end.The attaching nut 7 that described Adjusting bolt Adjusting screw is threaded connection is arranged on valve body upper end.Inverted cone groove is offered at described flap top, and described spring seat 4 bottoms are connected in groove.Adjusting bolt Adjusting screw 9 outsides, described valve rod upper end screw the also cap 8 that is placed in attaching nut 7 tops.Design is when valve base cavity pressure surpasses permitted value, and flap is stressed after impact, promotes spring seat and forces spring to make compression movement, and flap is subjected to displacement, the sealing surface of lifting off a seat, and now this valve is opened and relieving pressure or medium automatically.Design, when valve base cavity pressure reaches specified value, is subject to the effect of belleville spring power, promotes spring seat and valve clack sealing surface and sealing surface of seat reset, this valve hermetically closing timely and effectively automatically now, thus guaranteed the normal operation of equipment.Design adopts belleville spring, be because this spring be steel plate through the truncated cone shape compressive non-linearity spring of stamping-out machine shaping, there is stiffness and bearing capacity is large, the little and silk ribbon attached to an official seal or a medal of physical dimension rushes the advantages such as damping property is strong.
Described flap outer side wall is offered double density sealing groove, and in seal groove, mounting O-shaped rings 5 is sealed between flap outer wall and valve interior wall.Design O type circle is interval twice structure, and so duplicate protection, guarantees medium ne-leakage.Adopt attaching nut cap to coordinate Adjusting bolt Adjusting screw belleville spring to be regulated to the cracking pressure of this valve, accurately and reliably.Design valve seat and valve clack sealing surface all adopt that Hardmetal materials is refining to be formed, not only can be high pressure resistant, and there is the wear resistance of anti-fluid erosion, so sealability is reliable, long service life.
The foregoing is only preferred embodiment of the present invention, non-in order to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (7)
1. oil field special high-pressure safety valve, comprises valve body, valve rod, and described valve rod is arranged on the valve pocket inside of valve body; It is characterized in that, described valve rod lower end is connected on flap by spring seat, and described flap bottom is connected to the top of the valve seat being connected with valve body simultaneously; Described valve rod periphery cover has spring, and this spring upper end is connected to the Adjusting bolt Adjusting screw bottom that is enclosed within valve rod upper end, and this spring lower end is connected on spring seat; The attaching nut that described Adjusting bolt Adjusting screw is threaded connection is arranged on valve body upper end.
2. oil field according to claim 1 special high-pressure safety valve, is characterized in that, described valve rod and spring seat are integral type structure, and spring seat is the outwards outstanding circular platform structure with valve-stem integrated in valve rod lower end.
3. oil field according to claim 1 special high-pressure safety valve, is characterized in that, described spring is belleville spring.
4. oil field according to claim 1 special high-pressure safety valve, is characterized in that, inverted cone groove is offered at described flap top, and described spring seat bottom is connected in groove.
5. oil field according to claim 1 special high-pressure safety valve, is characterized in that, described flap outer side wall is offered double density sealing groove, and in seal groove, mounting O-shaped rings is sealed between flap outer wall and valve interior wall.
6. oil field according to claim 1 special high-pressure safety valve, is characterized in that, Adjusting bolt Adjusting screw outside in described valve rod upper end screws the also cap that is placed in attaching nut top.
7. oil field according to claim 1 special high-pressure safety valve, is characterized in that, described valve seat and valve clack sealing surface all adopt Hardmetal materials to refine and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229047.6A CN103527828A (en) | 2012-07-04 | 2012-07-04 | High-pressure safety valve special for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229047.6A CN103527828A (en) | 2012-07-04 | 2012-07-04 | High-pressure safety valve special for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527828A true CN103527828A (en) | 2014-01-22 |
Family
ID=49930062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210229047.6A Pending CN103527828A (en) | 2012-07-04 | 2012-07-04 | High-pressure safety valve special for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840181A (en) * | 2016-03-30 | 2016-08-10 | 中国石油天然气股份有限公司 | High pressure gas well liquid level automatic monitor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2803706A1 (en) * | 1978-01-28 | 1979-08-02 | Hebben Rolf Dipl Volksw | Throttle for hydraulic mine roof support - has safety valve in form of movable plunger within piston set by variable spring |
| CN2093291U (en) * | 1991-01-13 | 1992-01-15 | 永嘉县罗浮区锅炉附件厂 | Safety valve |
| US20040060600A1 (en) * | 2001-06-19 | 2004-04-01 | Choate Jeremy R. | Safety relief valve having a low blow-down value and spring therefore |
| CN101858450A (en) * | 2010-06-13 | 2010-10-13 | 上海乐高压缩机有限公司 | Safety valve |
| CN202252194U (en) * | 2011-09-13 | 2012-05-30 | 龙工（上海）桥箱有限公司 | Overflow valve for excavator main control valve |
| CN202646819U (en) * | 2012-07-04 | 2013-01-02 | 浙江恒华阀门有限公司 | Special high pressure safety valve for oil field |
-
2012
- 2012-07-04 CN CN201210229047.6A patent/CN103527828A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2803706A1 (en) * | 1978-01-28 | 1979-08-02 | Hebben Rolf Dipl Volksw | Throttle for hydraulic mine roof support - has safety valve in form of movable plunger within piston set by variable spring |
| CN2093291U (en) * | 1991-01-13 | 1992-01-15 | 永嘉县罗浮区锅炉附件厂 | Safety valve |
| US20040060600A1 (en) * | 2001-06-19 | 2004-04-01 | Choate Jeremy R. | Safety relief valve having a low blow-down value and spring therefore |
| CN101858450A (en) * | 2010-06-13 | 2010-10-13 | 上海乐高压缩机有限公司 | Safety valve |
| CN202252194U (en) * | 2011-09-13 | 2012-05-30 | 龙工（上海）桥箱有限公司 | Overflow valve for excavator main control valve |
| CN202646819U (en) * | 2012-07-04 | 2013-01-02 | 浙江恒华阀门有限公司 | Special high pressure safety valve for oil field |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840181A (en) * | 2016-03-30 | 2016-08-10 | 中国石油天然气股份有限公司 | High pressure gas well liquid level automatic monitor |
| CN105840181B (en) * | 2016-03-30 | 2019-11-08 | 中国石油天然气股份有限公司 | A kind of automatic liquid level monitor for high-pressure gas well |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140122 |
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| RJ01 | Rejection of invention patent application after publication |