CN206608139U - A kind of Wellhead Control System emergency shutdown valve - Google Patents
A kind of Wellhead Control System emergency shutdown valve Download PDFInfo
- Publication number
- CN206608139U CN206608139U CN201621353728.3U CN201621353728U CN206608139U CN 206608139 U CN206608139 U CN 206608139U CN 201621353728 U CN201621353728 U CN 201621353728U CN 206608139 U CN206608139 U CN 206608139U
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- CN
- China
- Prior art keywords
- valve
- valve body
- emergency shutdown
- valve rod
- inner chamber
- 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.)
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Abstract
The utility model embodiment discloses a kind of Wellhead Control System emergency shutdown valve, including the valve body and valve rod being coaxially disposed, the valve rod is placed in the inner chamber of the valve body, one end of the valve body is vertically provided with the escape orifice communicated with inner chamber, the other end of the valve rod from the valve body is passed to be connected with handle, the side wall of the valve body radially offers the pilot pressure access port communicated with the inner chamber, handle is pulled to make valve rod towards during remote one end motion of escape orifice, the pilot pressure access port is conducted by inner chamber with the escape orifice.The beneficial effects of the utility model are：A kind of Wellhead Control System emergency shutdown valve that the utility model is provided, operating personnel need to only pull handle, you can withdraw, emergency shutdown valve can be kept it turned on, and pilot pressure is unloaded automatically, and its is easy to operate, improve the degree of safety of system.
Description
【Technical field】
The utility model is related to a kind of emergency shutdown valve, particularly a kind of Wellhead Control System emergency shutdown valve.
【Background technology】
Oil, natural gas Wellhead Control System are the visual plants for ensureing exploitation safety, are needed when there is emergency
There is a kind of valve rapid, shut-off well mouth release valve and storm valve generally use plug valve, ball valve is as tight at present
Anxious shut-off valve, it operates the requirement not met in emergency circumstances, is easily caused operating personnel's in case of emergency misoperation, draws
Hair accident.
【Utility model content】
The purpose of this utility model be to overcome the deficiencies in the prior art there is provided a kind of Wellhead Control System with urgent pass
Disconnected valve, it is only necessary to the handle of emergency shutdown valve of leaving behind of taking advantage of a situation, you can withdraw, the emergency shutdown valve can be kept it turned on, from
Dynamic unloading pilot pressure, it is easy to operate, improve safety coefficient.
In order to solve the above-mentioned technical problem, a kind of Wellhead Control System emergency shutdown that the utility model embodiment is provided
Valve, it is theed improvement is that：Including the valve body and valve rod being coaxially disposed, the valve rod is placed in the inner chamber of the valve body, described
One end of valve body is vertically provided with the escape orifice communicated with inner chamber, and the other end of the valve rod from the valve body is passed and handle phase
Even, the side wall of the valve body radially offers the pilot pressure access port communicated with the body cavity.
In said structure, the handle is connected with the threaded stem.
In said structure, the valve rod is provided with the first sealing ring, the middle part of the valve rod close to one end of the escape orifice
Provided with the second sealing ring, the spacing of first sealing ring and the second sealing ring is more than the bore of the pilot pressure access port.
Internal diameter of the inner chamber between first sealing ring and the second sealing ring is more than the external diameter of the valve rod.
In said structure, the diameter of first sealing ring is more than the diameter of second sealing ring.Normal operating conditions
Under, under the effect of the pressure of pilot pressure access port, act on making a concerted effort towards escape orifice direction on the valve rod, and the valve rod
Limited and moved to escape orifice direction by the handle so that pilot pressure access port keeps cut-off state with escape orifice, valve is protected
Hold normal operating conditions.
In said structure, one end of the valve rod towards the escape orifice is provided with positioning boss.Under the state of emergency, pull
Handle makes valve rod be sealed towards away from the end motion of escape orifice one, first sealing ring departs from valve body, the pilot pressure
Access port is conducted by inner chamber with the escape orifice.Pilot pressure is acted on second sealing ring, makes valve rod towards handle
Direction, the boss diameter is more than the through-hole diameter of valve body second, and the boss limitation valve rod is moved to handle orientations, valve rod
It is maintained at opening.
Implement the utility model embodiment, have the advantages that：
In the utility model embodiment, a kind of Wellhead Control System emergency shutdown valve that the utility model is provided only is needed
Take advantage of a situation the handle of emergency shutdown valve of leaving behind, you can withdraw, the emergency shutdown valve can be kept it turned on, and guide is unloaded automatically
Pressure, its is easy to operate, improves the degree of safety of system.
【Brief description of the drawings】
Fig. 1 is the cross-sectional view of emergency shutdown valve in the utility model embodiment.
In figure：1st, valve body；41st, the through hole of valve body second；2nd, the first sealing ring；3rd, valve rod；31st, boss；4th, inner chamber；5th,
Two sealing rings；6th, locking nut；7th, handle；11st, escape orifice；12nd, pilot pressure access port.
【Embodiment】
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
Shown in reference picture 1, the utility model discloses a kind of Wellhead Control System emergency shutdown valve, including is coaxially disposed
Valve body 1 and valve rod 3, valve rod 3 is placed in the inner chamber 4 of valve body 1, and one end of valve body 1 is provided with and releasing that inner chamber 4 is communicated vertically
Hole 11, the other end of valve rod 3 from valve body 1 is passed to be connected with handle 7, and the side wall of valve body 1 radially offers what is communicated with inner chamber 4
Pilot pressure access port 12, when pulling handle 7 to make valve rod 3 towards away from 11 1 end motion of escape orifice, pilot pressure access port 12 leads to
Cross inner chamber 4 to be conducted with escape orifice 11, of course, it is possible to be fixedly mounted by locking nut 6 close to one section of handle 7 in valve body 1
On guidance panel.
In the present embodiment, valve rod 3 is provided with the first sealing ring 2 close to one end of escape orifice 11, and the middle part of valve rod 3 is provided with second
The spacing of sealing ring 5, the first sealing ring 2 and the second sealing ring 5 is more than the bore of pilot pressure access port 12.
Under system worked well state, in order that the first sealing ring 2 on valve rod 3 keeps blocking pilot pressure access port
The state of passage between 12 and escape orifice 11, the one end of valve rod 3 provided with the first sealing ring 2 is provided with convex with the cooperation of the inwall of valve body 1
Platform 31, the first sealing ring 2 is sheathed on boss 31；Accordingly, the diameter of the first sealing ring 2 is more than the diameter of the second sealing ring 5,
So, during normal work, the pressure for acting on the first sealing ring 2 is more than the pressure of the second sealing ring 5, and valve rod 3 is abutted to letting out
Discharge hole 11, the path blocked between pilot pressure access port 12 and escape orifice 11.Because of the position-limiting action of handle 7, it is maintained at just
The state often worked.Certainly, in the utility model, handle 7 and valve rod 3 can be fixed by various connected modes, for the ease of
Assembly and disassembly are changed in accessory, the present embodiment, and handle 7 is used with valve rod 3 and is threadedly coupled.
Under the state of emergency, handle 7 is pulled to make valve rod 3 towards away from the end motion of escape orifice 11 1, the first sealing ring 2 and valve body 1
Depart from sealing, pilot pressure access port 12 is conducted by inner chamber 4 with escape orifice 11.Pilot pressure acts on second sealing
On circle 5, by valve rod 3 against the direction of handle 7, the diameter of boss 31 is more than the diameter of the second through hole of valve body 41, boss 31 limit valve rod to
Handle orientations are moved, and valve rod is maintained at opening.Operating personnel need to only pull handle, you can withdraw, emergency shutdown valve
It can keep it turned on, pilot pressure is unloaded automatically.
Described above is only preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to the utility model
Limitation.In technological thought category of the present utility model, various modifications and modification, the ordinary skill of all this areas can occur
Retouching, modification or equivalent substitution that personnel are made as described above, belong to the scope that the utility model is protected.
Claims (5)
1. a kind of Wellhead Control System emergency shutdown valve, it is characterised in that：Including the valve body and valve rod being coaxially disposed, the valve
Bar is placed in the inner chamber of the valve body, one end of the valve body vertically provided with the escape orifice communicated with inner chamber, the valve rod from
The other end of the valve body is passed to be connected with handle, and the side wall of the valve body radially offers the guide communicated with the inner chamber
Pressure access port.
2. a kind of Wellhead Control System emergency shutdown valve according to claim 1, it is characterised in that：The valve rod is close
One end of the escape orifice is provided with boss, and the boss is provided with the first sealing ring, and the middle part of the valve rod is provided with the second sealing
Circle, the spacing of first sealing ring and the second sealing ring is more than the bore of the pilot pressure access port.
3. a kind of Wellhead Control System emergency shutdown valve according to claim 2, it is characterised in that：The inner chamber is in institute
State the external diameter that the internal diameter between the first sealing ring and the second sealing ring is more than the valve rod.
4. a kind of Wellhead Control System emergency shutdown valve according to claim 3, it is characterised in that：First sealing
The diameter of circle is more than the diameter of second sealing ring.
5. a kind of Wellhead Control System emergency shutdown valve according to claim 1, it is characterised in that：The handle and institute
State threaded stem connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353728.3U CN206608139U (en) | 2016-12-09 | 2016-12-09 | A kind of Wellhead Control System emergency shutdown valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353728.3U CN206608139U (en) | 2016-12-09 | 2016-12-09 | A kind of Wellhead Control System emergency shutdown valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608139U true CN206608139U (en) | 2017-11-03 |
Family
ID=60171508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621353728.3U Active CN206608139U (en) | 2016-12-09 | 2016-12-09 | A kind of Wellhead Control System emergency shutdown valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608139U (en) |
-
2016
- 2016-12-09 CN CN201621353728.3U patent/CN206608139U/en active Active
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