CN202646819U - Special high pressure safety valve for oil field - Google Patents
Special high pressure safety valve for oil field Download PDFInfo
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- CN202646819U CN202646819U CN 201220320187 CN201220320187U CN202646819U CN 202646819 U CN202646819 U CN 202646819U CN 201220320187 CN201220320187 CN 201220320187 CN 201220320187 U CN201220320187 U CN 201220320187U CN 202646819 U CN202646819 U CN 202646819U
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- valve
- oil field
- special high
- pressure safety
- spring
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Abstract
The utility model discloses a special high pressure safety valve for an oil field. The special high pressure safety valve for the oil field comprises a valve body and a valve rod, wherein the valve rod is arranged inside a valve cavity of the valve body, the lower end of the valve rod is connected with a valve clack through a spring seat, and the bottom of the valve clack is butted against the top of the valve seat connected with the valve body simultaneously. Besides, the periphery of the valve rod is sleeved with a disc-shaped spring, the upper end of the disc-shaped spring is butted against the bottom of an adjusting screw sleeve sleeved at the upper end of the valve rod, and the lower end of the disc-shaped spring is connected with the spring seat. The adjusting screw sleeve is arranged at the upper end of the valve body through a connecting screw nut connected by screw threads. The special high pressure safety valve for the oil field has the advantages of being novel in design, small in volume, resistance to high temperature, precise in opening pressure, convenient to install and maintenance, durable and the like. The special high pressure safety valve for the oil field is suitable for being installed on an oil field hyperpressure blower pump.
Description
Technical field
The utility model relates to valve, specifically oil field special high-pressure safety valve.
Background technique
The safety valve of present prior art, 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 defective in present safety valve, action is smooth not when opening or closing, and affects using effect; Can not be high pressure resistant, the corrosion of not anti-current body, not wear-resisting, it is unreliable to seal, and working life is short; Bearing capacity is little, the buffering shock resistance is bad etc.So for the oil field occasion, employed safety valve 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.
The model utility content
The purpose of this utility model is to provide oil field special high-pressure safety valve, and 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 installed on the ultrahigh-pressure intensifier of oil field, as the best product of overpressure protection.
In order to reach above-mentioned purpose, the utility model 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 the flap by spring seat, and described flap bottom is connected to the top of the valve seat that is 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 the valve rod upper end, and this spring lower end is connected on the spring seat; The attaching nut that described Adjusting bolt Adjusting screw is threaded connection is arranged on the valve body upper end.
Described valve rod and spring seat are the integral type structure, and namely spring seat is the outwards outstanding circular platform structure with valve-stem integrated in the valve rod lower end.
Described spring is belleville spring.
The inverted cone groove is offered at described flap top, and described spring seat bottom is connected in the groove.
Described flap outer side wall is offered the double density sealing groove, and mounting O-shaped rings is sealed between flap outer wall and the valve interior wall in the seal groove.
The Adjusting bolt Adjusting screw outside, described valve rod upper end screws the also cap that places the attaching nut top.
Described valve seat and valve clack sealing surface all adopt Hardmetal materials to make with extra care and form.
Compared to prior art, the utlity model has following beneficial effect:
When A, design surpass permitted value when valve base cavity pressure, after flap is stressed and affects, promote spring seat and force spring to make compression movement, flap is subjected to displacement, the sealing surface of lifting off a seat, and this moment, this valve was opened also relieving pressure or medium automatically.
B, design are subjected to the effect of belleville spring power when valve base cavity pressure reaches specified value, and promote spring seat and valve clack sealing surface and sealing surface of seat and reset, the automatic hermetically closing timely and effectively of this valve at this moment, thus guaranteed the normal operation of equipment.
C, design valve seat and valve clack sealing surface all adopt Hardmetal materials to make with extra care and form, not only can be high pressure resistant, and have the wear resistance of anti-current body erosion, so sealability is reliable, long service life.
D, design O type circle are interval twice structure, and so duplicate protection is guaranteed the medium ne-leakage.Adopt attaching nut and cap to cooperate Adjusting bolt Adjusting screw belleville spring to be regulated the cracking pressure of this valve, accurately and reliably.
Belleville spring is adopted in E, design, be because this spring be steel plate through the truncated cone shape compressive non-linearity spring of stamping-out machine shaping, have stiffness and bearing capacity is large, the little and silk ribbon attached to an official seal or a medal of physical dimension is eaten up part of the advantages such as performance is strong of shaking.
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 installed on the ultrahigh-pressure intensifier of oil field, as the best product of overpressure protection.
Description of drawings
Fig. 1 is the structural representation of the utility model oil field special high-pressure safety valve.
Among the 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 utility model and technology contents cooperate description of drawings as follows, yet accompanying drawing only provides the usefulness of reference with explanation, and the utility model is limited.
According to shown in Figure 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 the flap 3 by spring seat 4, and described flap 3 bottoms are connected to the top of the valve seat 1 that is 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 the valve rod upper end, and these belleville spring 6 lower ends are connected on the spring seat 4; Described valve rod and spring seat are the integral type structure, and namely spring seat is the outwards outstanding circular platform structure with valve-stem integrated in the valve rod lower end.The attaching nut 7 that described Adjusting bolt Adjusting screw is threaded connection is arranged on the valve body upper end.The inverted cone groove is offered at described flap top, and described spring seat 4 bottoms are connected in the groove.Adjusting bolt Adjusting screw 9 outsides, described valve rod upper end screw the also cap 8 that places attaching nut 7 tops.When design surpasses permitted value when valve base cavity pressure, after flap is stressed and affects, promote spring seat and force spring to make compression movement, flap is subjected to displacement, the sealing surface of lifting off a seat, and this moment, this valve was opened also relieving pressure or medium automatically.Design is subjected to the effect of belleville spring power when valve base cavity pressure reaches specified value, and promote spring seat and valve clack sealing surface and sealing surface of seat and reset, the automatic hermetically closing timely and effectively of this valve at this moment, thus guaranteed the normal operation of equipment.Belleville spring is adopted in design, be because this spring be steel plate through the truncated cone shape compressive non-linearity spring of stamping-out machine shaping, have stiffness and bearing capacity is large, the little and silk ribbon attached to an official seal or a medal of physical dimension is eaten up part of the advantages such as performance is strong of shaking.
Described flap outer side wall is offered the double density sealing groove, and mounting O-shaped rings 5 is sealed between flap outer wall and the valve interior wall in the seal groove.Design O type circle is interval twice structure, and so duplicate protection is guaranteed the medium ne-leakage.Adopt attaching nut and cap to cooperate Adjusting bolt Adjusting screw belleville spring to be regulated the cracking pressure of this valve, accurately and reliably.Design valve seat and valve clack sealing surface all adopt Hardmetal materials to make with extra care and form, not only can be high pressure resistant, and have the wear resistance of anti-current body erosion, so sealability is reliable, long service life.
The above only is preferred embodiment of the present utility model, and non-in order to limit claim of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to claim of the present utility model.
Claims (7)
1. special high-pressure safety valve in oil field 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 the flap by spring seat, and described flap bottom is connected to the top of the valve seat that is 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 the valve rod upper end, and this spring lower end is connected on the spring seat; The attaching nut that described Adjusting bolt Adjusting screw is threaded connection is arranged on the 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 the integral type structure, and namely spring seat is the outwards outstanding circular platform structure with valve-stem integrated in the 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, the inverted cone groove is offered at described flap top, and described spring seat bottom is connected in the groove.
5. oil field according to claim 1 special high-pressure safety valve is characterized in that, described flap outer side wall is offered the double density sealing groove, and mounting O-shaped rings is sealed between flap outer wall and the valve interior wall in the seal groove.
6. oil field according to claim 1 special high-pressure safety valve is characterized in that, the Adjusting bolt Adjusting screw outside, described valve rod upper end screw place the attaching nut top and cap.
7. oil field according to claim 1 special high-pressure safety valve is characterized in that, described valve seat and valve clack sealing surface adopt all that Hardmetal materials is refining to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320187 CN202646819U (en) | 2012-07-04 | 2012-07-04 | Special high pressure safety valve for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320187 CN202646819U (en) | 2012-07-04 | 2012-07-04 | Special high pressure safety valve for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646819U true CN202646819U (en) | 2013-01-02 |
Family
ID=47415928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320187 Expired - Fee Related CN202646819U (en) | 2012-07-04 | 2012-07-04 | Special high pressure safety valve for oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527828A (en) * | 2012-07-04 | 2014-01-22 | 浙江恒华阀门有限公司 | High-pressure safety valve special for oil field |
-
2012
- 2012-07-04 CN CN 201220320187 patent/CN202646819U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527828A (en) * | 2012-07-04 | 2014-01-22 | 浙江恒华阀门有限公司 | High-pressure safety valve special for oil field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20160704 |