CN203730862U - Piston type safety valve - Google Patents
Piston type safety valve Download PDFInfo
- Publication number
- CN203730862U CN203730862U CN201420141138.9U CN201420141138U CN203730862U CN 203730862 U CN203730862 U CN 203730862U CN 201420141138 U CN201420141138 U CN 201420141138U CN 203730862 U CN203730862 U CN 203730862U
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- CN
- China
- Prior art keywords
- piston
- safety valve
- type safety
- piston type
- endoporus
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- Expired - Fee Related
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Abstract
The utility model provides a piston type safety valve. The piston type safety valve consists of three parts of an adjustable safety valve, a floating cylinder and a contact point alarm switch, wherein the adjustable safety valve consists of a piston and a spring; the piston type safety valve is characterized in that the inner part and the outer part of a valve body are sealed through using the piston and three sealing pieces, a passage is opened for discharging gas when the pressure enables the piston to ascend, the surface of the valve body can be cleaned while the sealing performance is kept due to the arrangement of the piston and the sealing pieces, the sealing performance is prevented from being obstructed by impurities, the pollution caused by liquid spraying and the potential safety hazard can be avoided while gas can be safely discharged by the piston type safety valve due to the arrangement of the floating cylinder, and meanwhile, an alarm function is provided; the piston type safety valve has the characteristics that the work is safe and reliable, the sealing performance is high, the environment is not polluted, and active alarm can be carried out; the piston type safety valve is beneficial for being promoted and used.
Description
Technical field
The utility model relates to oil-gas-water separator field of accessories, is specifically related to piston type safety valve.
Background technique
In field produces, use three phases separator that oil gas aqueous mixtures is separated, oil gas water separator need to be worked under certain pressure condition, generally at separator top, safety valve is set and keeps the pressure in separator, when separator pressure exceedes setting value, safety valve is opened and is emitted gas, after pressure drop, safety valve cuts out maintenance pressure, the spool of the safety valve using at present generally adopts tapered cylinder to contact sealing with base ring face, in the time that wearing and tearing or have impurity to be mingled with wherein, tapered cylinder cause poorly sealed safety valve to lose efficacy, while also existing safety valve to open, discharge crude oil pollution environment and bring the problem of potential safety hazard in three-phase separator using process.
Summary of the invention
There is problem poorly sealed, that discharge crude oil brings pollution and potential safety hazard in order to solve three-phase separator safety valve, the utility model proposes piston type safety valve and address the above problem.
The technical solution of the utility model is: piston type safety valve, comprise flange seat cylinder, flange seat cylinder bottom is blank flange, extension one end, top pipe, flange seat cylinder top pipe pipe thread connects middle adapter, the middle adapter upper tube protective hat that is threaded, middle adapter inside has the endoporus of two sections of different-diameters of size from top to bottom, macropore top, the top spring seat that is threaded, bottom is connected with the annulus boss Spielpassung of piston tail, between piston and spring seat, is equipped with spring, piston lower cylindrical surface is connected with middle adapter bottom small diameter bore Spielpassung, piston lower cylindrical surface open loop groove, annular groove is built-in with Sealing, flange seat pipe wall place has by-pass hole, and this by-pass hole is communicated with the endoporus hole wall of flange seat cylinder at piston seal upside and spring position respectively, the space of middle adapter bottom and the sub-endoporus of flange seat bobbin is equipped with floating drum, floating drum is the cylindrical structural of the sealing of hollow, the cylinder upper surface of floating drum is conical, this conical smaller diameter end size is less than middle adapter bottom hole diameter, a slide bar of the each connection in floating drum upper surface left and right, slide bar top is stretched in the slideway of outputing in flange seat pipe wall, the top of one of them slideway is communicated with the pipe outer wall of flange seat cylinder along laterally having counterbore, this counterbore outer end has the contact switch that is threaded, the length of slide bar is: in the time that floating drum conical surface contacts the endoporus of middle adapter, slide bar top makes two make contact of contact switch.
On the blank flange of the flange seat cylinder bottom in such scheme, have inlet hole, the position of inlet hole is close to the tube wall of flange base.On protective hat, have vent, the position of vent is at the horizontal direction of protective hat.Spring seat has endoporus, and this endoporus is interior hexagon.
The utlity model has following beneficial effect: this valve is by using piston and three seals to make outer closure in valve body, in the time that pressure rises piston, passage is opened venting, arranging of piston and Sealing keeps the simultaneously all right cleaning valve of sealability surface, avoid impurity to hinder the sealing of valve body, this valve that is arranged so that of floating drum avoid liquid ejection to pollute and avoid potential safety hazard in can safety discharging air, is furnished with warning function simultaneously, have safe and reliable, sealability is high, free from environmental pollution, the feature of initiative alarming, favourable promoting the use of.
brief description of the drawings:
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is plan views of the utility model part 9.
1-flange seat cylinder in figure, 2-inlet hole, 3-floating drum, 4-by-pass hole, 5-slideway, 6-piston, 7-middle adapter, 8-spring, 9-spring seat, 10-protective hat, 11-vent, 12-contact switch, 13-slide bar.
embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
By Fig. 1 in conjunction with shown in Fig. 2, piston type safety valve, comprise flange seat cylinder 1, flange seat cylinder 1 bottom is blank flange, extension one end, top pipe, flange seat cylinder 1 top pipe pipe thread connects middle adapter 7, the middle adapter 7 upper tubes protective hat 10 that is threaded, middle adapter 7 inside have the endoporus of two sections of different-diameters of size from top to bottom, macropore top, the top spring seat 9 that is threaded, bottom is connected with the annulus boss Spielpassung of piston 6 afterbodys, between piston 6 and spring seat 9, is equipped with spring 8, piston 6 lower cylindrical surfaces are connected with middle adapter 7 bottom small diameter bore Spielpassung, piston 6 lower cylindrical surface open loop grooves, annular groove is built-in with Sealing, flange seat cylinder 1 tube wall place has by-pass hole 4, and this by-pass hole 4 is communicated with the endoporus hole wall of flange seat cylinder 1 at piston 6 Sealing upsides and spring 8 positions respectively, the space of middle adapter 7 bottoms and flange seat cylinder 1 pipe endoporus is equipped with floating drum 3, the cylindrical structural of the sealing that floating drum 3 is hollow, the cylinder upper surface of floating drum 3 is conical, this conical smaller diameter end size is less than middle adapter 7 bottom hole diameters, when liquid in the separated device of floating drum floats, the top conical surface of floating drum 3 stretches into and withstands the endoporus of middle adapter 7 and realizes sealing, a slide bar 13 of the floating drum 3 each connections in upper surface left and right, slide bar 13 tops are stretched in the slideway 5 of outputing on flange seat cylinder 1 tube wall, slide bar 13 plays the effect of leading to floating drum 3, floating drum 3 is moved along valve center line, floating drum 3 upper cone faces and middle adapter 7 seal actions, the top of one of them slideway 5 is communicated with the pipe outer wall of flange seat cylinder 1 along laterally having counterbore, this counterbore outer end has the contact switch 12 that is threaded, the length of slide bar 13 is: in the time that floating drum 3 conical surfaces contact the endoporus of middle adapter 7, slide bar 13 tops make two make contact of contact switch 12.
On the blank flange of flange seat cylinder 1 bottom in such scheme, have inlet hole 2, the tube wall that the position of inlet hole 2 is close to flange base 1 prevents that gas from producing and impacting floating drum 3.
On protective hat 10 in such scheme, have vent 11, the position of vent 11, at the horizontal direction of protective hat 10, effectively prevents that outside sleet from entering valve body.
Spring seat 9 in such scheme has endoporus, and this endoporus is interior hexagon, changes the tightness of spring 8 by the position of inner hexagon spanner Regulation spring seat 9, sets the cracking pressure of piston 6.
In the time that three separator internal pressures exceed setting value, internal pressure jack-up piston 6, piston 6 rises, by-pass hole 4 is communicated with the through hole 5 of piston 6, gas enters through hole 5 by by-pass hole 4 and piston 5 center counterbores are discharged by the center hole of spring seat 9, and pressure release back piston return, in the time having liquid to enter valve body, floating drum 3 is floated, floating drum 3 tops and middle adapter 7 seal, and slide bar 13 withstands contact switch 12, contact switch 12 closures simultaneously, alarm circuit is communicated with, and transmission of signal enters control room and reports to the police.
This valve is by using piston and three seals to make outer closure in valve body, in the time that pressure rises piston, passage is opened venting, arranging of piston and Sealing keeps the simultaneously all right cleaning valve of sealability surface, avoid impurity to hinder the sealing of valve body, this valve that is arranged so that of floating drum avoid liquid ejection to pollute and avoid potential safety hazard in can safety discharging air, is furnished with warning function simultaneously, have safe and reliable, sealability is high, free from environmental pollution, the feature of initiative alarming, favourable promoting the use of.
Claims (4)
1. a piston type safety valve, comprise flange seat cylinder (1), it is characterized in that: flange seat cylinder (1) bottom is blank flange, extension one end, top pipe, flange seat cylinder (1) top pipe pipe thread connects middle adapter (7), middle adapter (7) the upper tube protective hat (10) that is threaded, the inner endoporus that has from top to bottom two sections of different-diameters of size of middle adapter (7), macropore top, the top spring seat (9) that is threaded, bottom is connected with the annulus boss Spielpassung of piston (6) afterbody, between piston (6) and spring seat (9), be equipped with spring (8),
Piston (6) lower cylindrical surface is connected with middle adapter (7) bottom small diameter bore Spielpassung, piston (6) lower cylindrical surface open loop groove, annular groove is built-in with Sealing, flange seat cylinder (1) tube wall place has by-pass hole (4), and this by-pass hole (4) is communicated with the endoporus hole wall of flange seat cylinder (1) at piston (6) Sealing upside and spring (8) position respectively;
The space of middle adapter (7) bottom and flange seat cylinder (1) pipe endoporus is equipped with floating drum (3), the cylindrical structural of the sealing that floating drum (3) is hollow, the cylinder upper surface of floating drum (3) is conical, this conical smaller diameter end size is less than middle adapter (7) bottom hole diameter, the each slide bar (13) that connects in floating drum (3) upper surface left and right, slide bar (13) top is stretched in the slideway (5) of outputing on flange seat cylinder (1) tube wall, the top of one of them slideway (5) is communicated with the pipe outer wall of flange seat cylinder (1) along laterally having counterbore, this counterbore outer end has the contact switch that is threaded (12), the length of slide bar (13) is: in the time that floating drum (3) conical surface contacts the endoporus of middle adapter (7), slide bar (13) top makes two make contact of contact switch (12).
2. piston type safety valve according to claim 1, it is characterized in that: on the blank flange of flange seat cylinder (1) bottom, have inlet hole (2), the position of inlet hole (2) is close to the tube wall of flange base (1).
3. piston type safety valve according to claim 2, is characterized in that: on protective hat (10), have vent (11), the position of vent (11) is at the horizontal direction of protective hat (10).
4. piston type safety valve according to claim 3, is characterized in that: spring seat (9) has endoporus, and this endoporus is interior hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141138.9U CN203730862U (en) | 2014-03-27 | 2014-03-27 | Piston type safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141138.9U CN203730862U (en) | 2014-03-27 | 2014-03-27 | Piston type safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730862U true CN203730862U (en) | 2014-07-23 |
Family
ID=51200937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420141138.9U Expired - Fee Related CN203730862U (en) | 2014-03-27 | 2014-03-27 | Piston type safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730862U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697829A (en) * | 2016-03-10 | 2016-06-22 | 朱汉超 | Automatic air compensation device |
| CN105805479A (en) * | 2014-12-31 | 2016-07-27 | 中国石油天然气股份有限公司 | Plug capable of relieving pressure |
| CN106197838A (en) * | 2016-07-29 | 2016-12-07 | 广东惠利普路桥信息工程有限公司 | A kind of instrument of energy automatic alarm |
-
2014
- 2014-03-27 CN CN201420141138.9U patent/CN203730862U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805479A (en) * | 2014-12-31 | 2016-07-27 | 中国石油天然气股份有限公司 | Plug capable of relieving pressure |
| CN105697829A (en) * | 2016-03-10 | 2016-06-22 | 朱汉超 | Automatic air compensation device |
| CN106197838A (en) * | 2016-07-29 | 2016-12-07 | 广东惠利普路桥信息工程有限公司 | A kind of instrument of energy automatic alarm |
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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 |
Granted publication date: 20140723 Termination date: 20150327 |
|
| EXPY | Termination of patent right or utility model |