CN203463071U - Valve plate structure for underground safety valve - Google Patents
Valve plate structure for underground safety valve Download PDFInfo
- Publication number
- CN203463071U CN203463071U CN201320534533.9U CN201320534533U CN203463071U CN 203463071 U CN203463071 U CN 203463071U CN 201320534533 U CN201320534533 U CN 201320534533U CN 203463071 U CN203463071 U CN 203463071U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- valve seat
- storm
- seat
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a valve plate structure for an underground safety valve. The valve plate structure comprises a valve seat and a valve plate, wherein the valve plate is elastically hinged to the valve seat and is in sealed contact with the valve seat, and the valve plate adopts a curve surface body. The valve plate structure is characterized in that the valve plate adopts the arc-shaped curve surface body, and when the valve plate is in an opening state, the positions of two edges forming the transverse diameter are positioned inside the valve seat, so the interference position with the inner wall of the valve seat can be avoided, and the space requirement during the opening can be met without larger valve body inner diameter. Compared with the valve plate with the same diameter, the valve plate structure has the advantages that the outer diameter and the size of the underground safety valve can be reduced, and great convenience is brought to the underground installation.
Description
Technical field
The utility model belongs to storm valve, is specifically related to a kind of valve board structure of storm valve.
Background technology
In oil exploration industry, but while carrying out underground work, often occur, because the reasons such as mining equipment breaks down cause the increasing of hydrocarbon fluid flow velocity uncontrollable, at this moment, with regard to necessary closing passage in time, guaranteeing job safety, avoid occurring larger accident.In actual production, must there is a kind of device (storm valve) to close fluid passage, realize block function.
Storm valve is a kind of underground equipment that prevents blowout, guarantees Oil/gas Well production safety.When being in an emergency, by be connected to the control pipeline release on ground from valve body, close valve plate and realize closing of Oil/gas Well, in the time of need to opening, can add hydraulic open valve plate by pipeline and exploit.
Current storm valve is to cut off flow by valve plate mechanism, and what the valve board structure of existing product adopted is flat valve plate seal form, and the fluid of realizing in oil pipe is closed.Flat valve board structure as shown in Figure 1, comprising: valve plate 101, rotational pin 102, torsion spring 103, valve seat 104, dummy piston 105, spring leaf 106.Valve plate 101 adopts plane body, and valve plate 101 resets and contacts with valve seat 104 sealings by torsion spring 103.Existing flat valve board structure is simple and reliable, is easy to processing, but the space requirement when valve plate requires during in opening larger valve block internal diameter could meet unlatching, otherwise valve plate there will be the situation with valve interior wall interference when enable possition.As shown in Figure 2 and Figure 3, when valve plate 101 is opened completely, internal diameter is A, and cross section external diameter is B, and B can obviously be greater than A.Adopt the valve plate of traditional design just to require the external diameter of valve body enough greatly just can meet design requirement.Due to well internal diameter size restriction, the upper limit for storm valve external diameter in use procedure has strict demand, if for the storm valve external diameter of large specification is excessive just can not G.I.H, cause product to use.Therefore need a kind of design of minor diameter, meet on-the-spot needs.
Utility model content
The purpose of this utility model is to provide a kind of valve board structure of storm valve, to dwindle the external diameter of storm valve, is beneficial to down-hole and installs.
The technical scheme that realizes the employing of the utility model object is as follows:
The valve board structure of the storm valve that the utility model provides, comprise valve seat, with valve seat elastic hinge joint and the valve plate that contact of sealing, described valve plate employing curved body.
The valve board structure of the another kind of storm valve that the utility model provides, comprises valve seat, the valve plate contacting with valve base sealing and backplate, and described backplate is fixedly connected with the outer wall of valve seat, and described valve plate adopts curved body, and with described backplate elastic hinge joint.
Described valve plate adopts circular arc camber.
The back side of described valve plate is symmetrical polyhedron.
Feature of the present utility model is, valve plate adopts arc-shaped curved surface body, valve plate when opening, its inside in valve seat, position, two edges that forms horizontal diameter, thereby can avoid the interference position with valve base inner wall, do not require space requirement when larger valve block internal diameter just can meet unlatching.And valve plate of the prior art is plane body, during unlatching, its two edges are positioned on the limit of valve seat, in order not make itself and valve seat wall, interfere, must strengthen the external diameter of valve body, the space requirement while requiring to have larger valve block internal diameter could meet unlatching, so for the valve plate of same diameter, the utility model can dwindle external diameter and the volume of storm valve, is very easy to down-hole and installs.
Below in conjunction with accompanying drawing, further illustrate the technical solution of the utility model.
Accompanying drawing explanation
Fig. 1 is the valve board structure schematic diagram of existing storm valve.
Fig. 2 is the valve plate opening schematic diagram of existing storm valve.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is structural representation of the present utility model.
Fig. 5 is the schematic diagram of valve plate in the utility model.
Fig. 6 is valve plate opening schematic diagram of the present utility model.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is different structure schematic diagram of the present utility model.
Fig. 9 is the operating principle schematic diagram of storm valve.
The specific embodiment
Embodiment 1
Referring to Fig. 4-Fig. 7, the valve board structure of the storm valve that the utility model provides, comprise valve seat 104, the valve plate 101 and the backplate 401 that contact with valve seat 104 sealings, backplate 109 comprises sleeve part 109a and is located at the colulus 109b of 109a one end, sleeve part, backplate 109 is enclosed within on valve seat 104 and is located with alignment pin 111 and valve seat 104 by sleeve part 109a, then by swivel nut 110, backplate 109 is connected with valve seat 104; Valve plate 101 adopts the curved body of circular arc camber shape, valve plate 101 is connected with backplate 109 by rotational pin 102, the outer torsion spring 103 that is provided with of rotational pin 102, on valve plate 101, process porose, be provided with dummy piston 105 and realize sealing by hole axle precision-fit, dummy piston 105 is fixing with valve plate 101 by spring 107 and collar 108, and dummy piston 105 can move up and down for self-balancing.The size of the contacting surface of valve plate 101 and valve seat 104 fits like a glove and realizes sealing; The back side of valve plate 101 is that symmetrical polyhedron prevents from opening rear interference, and realizes the balancing of stresses that while closing, pressure produces, and improves compressive strength.
Embodiment 2
Referring to Fig. 8, the present embodiment comprises existing valve seat 104 and valve plate 101, and valve plate 101 adopts curved body, is connected the outer torsion spring 103 that is provided with of rotational pin 102 by rotational pin 102 with valve seat 104.
The operating principle of storm valve (referring to Fig. 9): safety valve body 202 is gone into the well after being connected with oil pipe 201, outside is borehole wall sleeve pipe 210, safety valve body 202 is connected to ground by controlling pipeline 203.Ground is faced control valve line 203 and is added hydraulic pressure, and hydraulic action is at piston 204, and piston 204 adopts sealing rings 205 sealings, piston 204 promotes lock ring 206 and drives central tube 207, make spring 208 compressions, the relative valve component 209 of central tube 207 moves down, and pushes valve plate 101 open and realizes unlatching.When in emergency circumstances, control pipeline 203 rushes down presses rear spring 208 to push back central tube 207, and valve plate 101 is closed under torsion spring effect, realizes well control.
As shown in Figure 6, Figure 7, when valve plate 101 is during in full open, owing to adopting the curved body of circular arc camber shape, maximum cylindrical C is less with respect to endoporus A in its cross section, can prevent and the endoporus of safety valve body is interfered, and realizes dwindling of safety valve external diameter, is beneficial to installation.The in the situation that of identical endoporus A, adopt the maximum cylindrical B(of product that the maximum cylindrical C in its cross section of curved body valve board structure can be significantly less than the plane body valve board structure that existing product adopts referring to Fig. 3).
Claims (4)
1. a valve board structure for storm valve, comprise valve seat, with the valve plate that valve seat elastic hinge joint and sealing contacts, it is characterized in that described valve plate employing curved body.
2. a valve board structure for storm valve, comprises valve seat, the valve plate contacting with valve base sealing, it is characterized in that also comprising backplate, and described backplate is fixedly connected with the outer wall of valve seat, and described valve plate adopts curved body, and with described backplate elastic hinge joint.
3. the valve board structure of storm valve according to claim 1 and 2, is characterized in that described valve plate adopts circular arc camber.
4. the valve board structure of storm valve according to claim 3, the back side that it is characterized in that described valve plate is symmetrical polyhedron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534533.9U CN203463071U (en) | 2013-08-30 | 2013-08-30 | Valve plate structure for underground safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320534533.9U CN203463071U (en) | 2013-08-30 | 2013-08-30 | Valve plate structure for underground safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463071U true CN203463071U (en) | 2014-03-05 |
Family
ID=50175443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320534533.9U Expired - Lifetime CN203463071U (en) | 2013-08-30 | 2013-08-30 | Valve plate structure for underground safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463071U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443061A (en) * | 2014-09-28 | 2016-03-30 | 中国石油化工集团公司 | Lower end pressure enclosing mechanism of coring tool with large drift diameter |
| CN109719589A (en) * | 2018-12-20 | 2019-05-07 | 中国海洋石油集团有限公司 | A kind of grinding prosthetic device of sealing surface of safety valve |
| CN113417599A (en) * | 2021-08-10 | 2021-09-21 | 四川恒铭泽石油天然气工程有限公司 | Underground switch valve for electric control oil-gas well |
-
2013
- 2013-08-30 CN CN201320534533.9U patent/CN203463071U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443061A (en) * | 2014-09-28 | 2016-03-30 | 中国石油化工集团公司 | Lower end pressure enclosing mechanism of coring tool with large drift diameter |
| CN105443061B (en) * | 2014-09-28 | 2017-10-10 | 中国石油化工集团公司 | Big orifice coring tool lower end pressure seal mechanism |
| CN109719589A (en) * | 2018-12-20 | 2019-05-07 | 中国海洋石油集团有限公司 | A kind of grinding prosthetic device of sealing surface of safety valve |
| CN113417599A (en) * | 2021-08-10 | 2021-09-21 | 四川恒铭泽石油天然气工程有限公司 | Underground switch valve for electric control oil-gas well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201902656U (en) | Hydraulic driving device of flat plate gate valve under seawater | |
| CN203463071U (en) | Valve plate structure for underground safety valve | |
| CN104499993B (en) | Dual-flap-valve type downhole safety valve | |
| CN203905899U (en) | Surface controlled subsurface safety valve | |
| CN203430497U (en) | Unconventional large-drift-diameter fracturing well head device | |
| CN101818630B (en) | Mechanical underbalance downhole casing valve | |
| CN203847071U (en) | Downhole safety valve | |
| CN104613183B (en) | A kind of high pressure butterfly valve | |
| CN201738915U (en) | Sealing and suppressing device of well sealing device for oil field | |
| CN203363247U (en) | Rear ball valve device for pressure maintenance coring of natural gas hydrate | |
| CN202125283U (en) | High-pressure filling type rotary sliding well head | |
| CN201679455U (en) | Continuous oil pipe dynamic sealer | |
| CN103644426A (en) | Full-sealed magnetic control pipeline valve | |
| CN201053314Y (en) | Horizontal well flexible short section | |
| CN203130014U (en) | Penetrating-type oil tube hanger positioning device | |
| CN203770683U (en) | Sea valve of air control oil tank truck | |
| CN201679468U (en) | Coiled tubing anchoring device | |
| CN204358310U (en) | The quick clip of self adaption | |
| CN201560727U (en) | Anti-skidding slip of rotating control head | |
| CN202348225U (en) | Kelly bar plug valve | |
| CN104455905A (en) | Plug device | |
| CN205172516U (en) | Well head fracturing valve protection device | |
| CN204532259U (en) | There is the storm valve Valve clack device of Self-balancing | |
| CN204099648U (en) | A kind of low moment of torsion metal hard-sealing stopcock | |
| CN203223207U (en) | Gas-liquid joint control subsurface safety valve device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |
|
| CX01 | Expiry of patent term |