CN203531842U - Relay valve for well mouth safety control system - Google Patents
Relay valve for well mouth safety control system Download PDFInfo
- Publication number
- CN203531842U CN203531842U CN201320514656.6U CN201320514656U CN203531842U CN 203531842 U CN203531842 U CN 203531842U CN 201320514656 U CN201320514656 U CN 201320514656U CN 203531842 U CN203531842 U CN 203531842U
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- valve
- valve body
- medium runner
- hole
- runner hole
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Abstract
The utility model relates to a relay valve, in particular to a relay valve for a well mouth safety control system. The relay valve comprises a valve body, a valve element, a valve deck, a first spring, a handle ball and a locking nut. A medium flow channel hole A, a medium flow channel hole B and a medium flow channel hole C are formed in the valve body, an annular groove F is formed in a through hole opposite to the medium flow channel hole A, an inner cavity of the valve body is a through hole, an enlarged valve cavity is formed in the left end of the inner cavity of the valve body, a locking and buckling pin is arranged on the side wall of the valve body, an annular groove G where the locking and buckling pin is inserted is formed in the right end of the valve element, the left end of the valve element is provided with a large piston matched with the enlarged valve cavity of the valve body, the left end of the first spring tightly abuts against the right end face of the large piston, the right end of the first spring tightly abuts against the inner wall of the enlarged valve cavity, and the left end of the large piston is provided with a small piston matched with a small sealed hole. According to the relay valve, the motion speed is quickened, the control pressure is reduced, manual opening and automatic opening are integrated, the locking function is achieved, the service life is prolonged, and accidental automatic opening can be further prevented.
Description
Technical field
The utility model relates to relay valve, specifically a kind ofly improves responsiveness, reduces controlled pressure, integrates manually opened and well head safe control system relay valve that automatically close, have latch functions and increase the service life.
Background technology
Specific (special) requirements due to natural gas well head safety, well head safe control system requires that all elements are multiple functional, superior performance, safe, long service life, and relay valve also just requires to have the responsiveness being exceedingly fast, lower controlled pressure, good sealing, longer application life, high handling.
In use there is the too high and unexpected shortcoming of automatically opening of controlled pressure in the relay valve of using in the current well head safe control system of China; O RunddichtringO on spool very easily by the aperture in medium runner hole, scratched and rate-of flow minimum; Valve body two ends are equipped with end cap, and are connected by screw, and cause whole concentricity lower, very easily occur the phenomenon of spool jam, and resistance to corrosion is low simultaneously, and relay valve in use often damages, and application life is short, causes enterprise's use cost high.
In sum, relay valve complex structure for the natural gas well head safety control system of prior art, responsiveness is slow, sealing is poor, controlled pressure is high, application life is short, meanwhile, the relay valve of prior art very easily occurs that unexpected shortcoming and use cost of automatically opening is high.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly improves responsiveness, reduces controlled pressure, integrates manually opened and well head safe control system relay valve that automatically close, have latch functions and increase the service life.
For realizing the technical scheme that the utility model above-mentioned purpose adopts, be: a kind of well head safe control system relay valve, comprise valve body, at the inner chamber of valve body, spool is installed, left end is provided with valve gap, the left section of cover at spool has spring I, at the right-hand member of spool, handle ball and locking nut is housed; Wherein:
On described valve gap, be disposed with from left to right medium runner hole D and sealed aperture;
On described valve body, be provided with medium runner hole A, medium runner hole B and medium runner hole C, described medium runner hole B and medium runner hole C are positioned at the same sidewall on valve body, medium runner hole A is positioned on the sidewall relative with medium runner hole C sidewall of living in medium runner hole B, and the medium runner hole relative through hole of A is provided with annular groove F;
The inner chamber of described valve body is a through hole, inner chamber left end at valve body is provided with increase valve pocket, at the left end that increases valve pocket, be provided with chute, on the sidewall of valve body that is positioned at medium runner hole A right-hand member, be provided with pintle hook lock installing hole, pintle hook lock installing hole internal thread is connected with pintle hook lock nut, in this pintle hook lock nut, be provided with pintle hook lock pin, the bottom of described pintle hook lock pin is tight against spring II in pintle hook lock installing hole; At spool right-hand member, be provided with the annular groove G inserting for pintle hook lock pin;
The left end of described spool is provided with the large piston mating with the increase valve pocket of valve body, and described spring I left end is tight against on this large piston right side, and spring I right-hand member is tight against and is increasing on the inwall of valve pocket; Left end at large piston is provided with the valve piston mating with sealed aperture.
Due to said structure, under normality, pull handle ball to the right and press pintle hook lock pin, the manual locking of this valve, moves right promotion spool put after making the controlled pressure of large piston left end reach opening pressure in medium enters valve pocket, pintle hook lock pin is by automatic spring, and this valve is opened completely; When driving handle ball left, spool will be blocked the pressure of medium runner hole B immediately, and by the release pressure of medium runner hole A end of medium runner hole C, realizes the manual-lock of this valve.This structure has effectively realized manually opened and has automatically closed in one, and has latch functions.In the time of by large piston and valve piston, use, effectively prevent the unexpected unlatching automatically of this valve, reduce the controlled pressure of this valve, improved safety in utilization.
Accompanying drawing explanation
The non-limiting embodiment that the utility model can provide by accompanying drawing further illustrates.
Fig. 1 is structural representation of the present utility model.
In figure: 1, valve gap; 2, medium runner hole D; 3, sealed aperture; 4, chute; 5, increase valve pocket; 6, spring I; 7, spool; 8, valve body; 9, medium runner hole A; 10, annular groove E; 11, erecting of panel nut; 12, pintle hook lock pin; 13, pintle hook lock nut; 14, spring II; 15, locking nut; 16, handle ball; 17, annular groove G; 18, medium runner hole C; 19, annular groove F; 20, medium runner hole B; 21, large piston; 22, valve piston.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Referring to accompanying drawing 1, a kind of well head safe control system relay valve, comprises valve body 8, at the inner chamber of valve body 8, spool 7 is installed, and left end is provided with valve gap 1, at left section of cover of spool 7, has spring I 6, at the right-hand member of spool 7, handle ball 16 and locking nut 15 is housed; Wherein:
On described valve gap 1, be disposed with from left to right medium runner hole D2 and sealed aperture 3;
On described valve body 8, be provided with medium runner hole A9, medium runner hole B20 and medium runner hole C18, described medium runner hole B20 and medium runner hole C18 are positioned at the same sidewall on valve body, medium runner hole A9 is positioned on the sidewall relative with medium runner hole C18 sidewall of living in medium runner hole B20, and the medium runner hole relative through hole of A9 is provided with annular groove F19;
The inner chamber of described valve body 8 is a through hole, inner chamber left end at valve body 8 is provided with increase valve pocket 5, at the left end that increases valve pocket 5, be provided with chute 4, on the sidewall of valve body 8 that is positioned at medium runner hole A9 right-hand member, be provided with pintle hook lock installing hole, pintle hook lock installing hole internal thread is connected with pintle hook lock nut 13, in this pintle hook lock nut 13, be provided with pintle hook lock pin 12, the bottom of described pintle hook lock pin 12 is tight against spring II 14 in pintle hook lock installing hole; At spool 7 right-hand members, be provided with the annular groove G17 inserting for pintle hook lock pin 12;
The left end of described spool 7 is provided with the large piston 21 mating with the increase valve pocket 5 of valve body 8, and described spring I 6 left ends are tight against on these large piston 21 right sides, and spring I 6 right-hand members are tight against and are increasing on the inwall of valve pocket 5; Left end at large piston 21 is provided with the valve piston 22 mating with sealed aperture 3.
Particularly:
Said structure is chosen medium runner hole B20 as pressure inlets, medium runner hole A9 is as pressure export, pull handle ball 16 to the right and press pintle hook lock pin 12, the manual locking of this valve, pressure is entered by medium runner hole B20 and exports from medium runner hole A9, after the controlled pressure that medium runner hole D2 enters large piston 21 left ends in valve pocket reaches opening pressure, promotion spool 7 is moved right and put in place, pintle hook lock pin 12 is by automatic spring, and this valve is opened completely.
When driving handle ball 16 left, spool 7 will be blocked the pressure of medium runner hole B20 immediately, and by the release pressure of medium runner hole A9 end of medium runner hole C18, realizes the manual-lock of this valve.
When the pressure decreased of medium runner hole D2 is following to the controlled pressure of this valve, spool 7 by under the elastic force in spring I 6 to left movement, spool 7 will be blocked the pressure of medium runner hole B20 immediately, and by the release pressure of medium runner hole A9 end of medium runner hole C18, realizes automatically closing of this valve.
For ease of this valve is installed, above-described embodiment, preferably: at the valve body 8 between pintle hook lock pin 12 and medium runner hole A9, be provided with erecting of panel nut 11.Described in this embodiment, erecting of panel nut 11 has been realized the agility being connected with well head safe control system equipment while installing.
For extending the application life of whole valve and safety and the sealing of raising valve, above-described embodiment, preferably: between described valve piston 22 and sealed aperture 3, by O RunddichtringO, seal.
For further extending the application life of whole valve and the sealing of raising valve, above-described embodiment, preferably: between described large piston 21 and increase valve pocket 5, by O RunddichtringO, seal.
For further extending the application life of whole valve and improving the sealing of valve, above-described embodiment, preferably: between described valve body 8 and valve gap 1, be threaded, and seal by O RunddichtringO.
For increasing rate-of flow, above-described embodiment, preferably: described spool 7 outer walls are provided with at least one annular groove E10 that increases gap between spool 7 and valve body 8.
For further extending again the application life of whole valve and the sealing of raising valve, above-described embodiment, preferably: between the place, annular groove E10 both sides of described spool 7 and valve body 8, by O RunddichtringO, seal.
For extending the O RunddichtringO application life on spool 7, above-described embodiment, preferably: the well width of the annular groove F19 arranging on the through hole that on described valve body 8, medium runner hole A9 is relative is slightly larger than the diameter of through hole.
In above-mentioned all embodiment in concrete use procedure:
1. according to well head safe control system, when moving, require each parts to have good sealing, the utility model adopts O RunddichtringO to carry out radial seal, has reliable sealing performance under the medium of liquid or gas, has extremely strong application life simultaneously.
2.O type circle is selected fluorubber material, it is good elastic body, can guarantee to work under adverse circumstances, can guarantee that relay valve has enough action frequencies simultaneously, simultaneously the dirt of O type circle position in can depositing system pressure medium goes to affect the sealing between spool and O type circle, has good stability.
3. spool left end is provided with size combinations piston, effectively reduces controlled pressure, can prevent the unexpected unlatching automatically of this valve simultaneously.
4. spool outer wall is provided with the annular groove that at least one increases gap between spool and valve body, has improved greatly rate-of flow, has accelerated responsiveness.
5. on body cavity through hole, annular groove is set, can prevents that the O RunddichtringO on spool from being scratched.
6. valve body left end is provided with chute, and piston on spool can be random enters increase valve pocket, and motion more freely.
7. this valve arrangement is simple, and integrated degree is higher, has improved concentricity, has reduced the waste of material, the loaded down with trivial details degree of simplification processing.
8. this valve has manual latch functions, handling extremely strong.
9. this pilot valve adopts stainless steel material manufacture, has strengthened resistance to compression, antifatigue, resistance to wears, resistance to corrosion, has further increased the application life of relay valve.
Obviously, all embodiment of foregoing description are a part of embodiment of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the category of the utility model protection.
In sum, this structure has improved responsiveness, reduced controlled pressure, has integrated manually opened and automatically close, have latch functions and extended application life, can also prevent unexpected unlatching automatically.
Claims (7)
1. a well head safe control system relay valve, comprise valve body (8), inner chamber at valve body (8) is provided with spool (7), left end is provided with valve gap (1), the left section of cover at spool (7) has spring I (6), at the right-hand member of spool (7), handle ball (16) and locking nut (15) is housed; It is characterized in that:
On described valve gap (1), be disposed with from left to right medium runner hole D(2) and sealed aperture (3);
On described valve body (8), be provided with medium runner hole A(9), medium runner hole B(20) and medium runner hole C(18), described medium runner hole B(20) and medium runner hole C(18) be positioned at the same sidewall on valve body, medium runner hole A(9) be positioned at and medium runner hole B(20) and medium runner hole C(18) on the relative sidewall of sidewall of living in, medium runner hole A(9) relative through hole is provided with annular groove F(19);
The inner chamber of described valve body (8) is a through hole, inner chamber left end at valve body (8) is provided with increase valve pocket (5), at the left end that increases valve pocket (5), be provided with chute (4), be positioned at medium runner hole A(9) be provided with pintle hook lock installing hole on the sidewall of the valve body (8) of right-hand member, pintle hook lock installing hole internal thread is connected with pintle hook lock nut (13), in this pintle hook lock nut (13), be provided with pintle hook lock pin (12), the bottom of described pintle hook lock pin (12) is tight against spring II (14) in pintle hook lock installing hole; At spool (7) right-hand member, be provided with the annular groove G(17 inserting for pintle hook lock pin (12));
The left end of described spool (7) is provided with the large piston (21) mating with the increase valve pocket (5) of valve body (8), described spring I (6) left end is tight against on this large piston (21) right side, and spring I (6) right-hand member is tight against and is increasing on the inwall of valve pocket (5); Left end at large piston (21) is provided with the valve piston (22) mating with sealed aperture (3).
2. well head safe control system relay valve according to claim 1, is characterized in that: be positioned at pintle hook lock pin (12) and medium runner hole A(9) between valve body (8) be provided with erecting of panel nut (11).
3. well head safe control system relay valve according to claim 1, is characterized in that: between described valve piston (22) and sealed aperture (3), by O RunddichtringO, seal.
4. well head safe control system relay valve according to claim 1, is characterized in that: between described large piston (21) and increase valve pocket (5), by O RunddichtringO, seal.
5. well head safe control system relay valve according to claim 1, is characterized in that: between described valve body (8) and valve gap (1), be threaded, and seal by O RunddichtringO.
6. well head safe control system relay valve according to claim 1, is characterized in that: described spool (7) outer wall is provided with at least one annular groove E(10 that increases gap between spool (7) and valve body (8)).
7. well head safe control system relay valve according to claim 6, is characterized in that: the annular groove E(10 of described spool (7)) between place, both sides and valve body (8), by O RunddichtringO, seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514656.6U CN203531842U (en) | 2013-08-22 | 2013-08-22 | Relay valve for well mouth safety control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320514656.6U CN203531842U (en) | 2013-08-22 | 2013-08-22 | Relay valve for well mouth safety control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531842U true CN203531842U (en) | 2014-04-09 |
Family
ID=50418064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320514656.6U Expired - Fee Related CN203531842U (en) | 2013-08-22 | 2013-08-22 | Relay valve for well mouth safety control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203531842U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879606A (en) * | 2021-01-20 | 2021-06-01 | 湖北三江航天红峰控制有限公司 | Low-temperature liquid-filling and emptying linkage device |
| WO2023115747A1 (en) * | 2021-12-21 | 2023-06-29 | 三一汽车制造有限公司 | Valve cover assembly, hydraulic valve group, hydraulic driving system, and operation vehicle |
-
2013
- 2013-08-22 CN CN201320514656.6U patent/CN203531842U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879606A (en) * | 2021-01-20 | 2021-06-01 | 湖北三江航天红峰控制有限公司 | Low-temperature liquid-filling and emptying linkage device |
| WO2023115747A1 (en) * | 2021-12-21 | 2023-06-29 | 三一汽车制造有限公司 | Valve cover assembly, hydraulic valve group, hydraulic driving system, and operation vehicle |
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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: 20140409 Termination date: 20160822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |