CN206816222U - A kind of valve leakage out of steam system controller - Google Patents
A kind of valve leakage out of steam system controller Download PDFInfo
- Publication number
- CN206816222U CN206816222U CN201720705172.8U CN201720705172U CN206816222U CN 206816222 U CN206816222 U CN 206816222U CN 201720705172 U CN201720705172 U CN 201720705172U CN 206816222 U CN206816222 U CN 206816222U
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- valve
- system controller
- steam system
- gas
- leakage out
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Abstract
The utility model discloses a kind of valve leakage out of steam system controller, including being set in the gas skirt on flat gate valve top and for gas skirt to be pressed on into holding down assembly for flat gate valve upper plane, the top of gas skirt is provided with through hole, intert the switch connecting rod for being provided with the valve rod that can open or close flat gate valve in through hole, the means of deflation for the leakage gas in gas skirt to be discharged is also associated with gas skirt.The utility model carries out certain protection to leakage valve, drainage discharge, is effectively changed after the situation of leakage is smoothly effectively controlled, then to combination sealing (packing), avoids the generation of danger.
Description
Technical field
The utility model belongs to oil and gas exploration technology field, and in particular to a kind of valve leakage out of steam system controller.
Background technology
Natural gas wellhead valve leaks situation happens occasionally, and particularly some old wells, throughout the year corrosion month after month result in
Sealing ring of valve internal etc. damages, and causes natural gas wellhead dangerous accident occur and occurs.Except frequent note butter maintains
Outside necessary bearing, it is also necessary to change sealing.
Natural gas wellhead open installation, field of employment environment are complicated, therefore special using progress is just had to after certain time
The maintaining of industry, particularly change failure parts, consumable accessory, polishing missing part etc..The combination sealing of valve is typically effective
Phase is the 1-2 years, and the valve service life of most natural gas wellhead is mostly considerably beyond effective service life.This
Sample has led to the leakage of valve.Due to the failure of combination sealing, caused by valve along valve rod, copper nut, gate valve upper case
The leakage of body.
It is the key for generally solving this problem to change combination sealing, and change when generally leaking outside all can be along with certain danger
Danger occurs.
Utility model content
The purpose of this utility model is to provide a kind of valve leakage out of steam system controller, lacked with overcoming existing for above-mentioned prior art
Fall into, the utility model carries out certain protection, drainage discharge, when the situation for being smoothly effectively controlled leakage to leakage valve
Afterwards, then to combination sealing (packing) effectively changed, avoid the generation of danger.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that：
A kind of valve leakage out of steam system controller, including it is set in the gas skirt on flat gate valve top and for gas skirt to be compressed
In holding down assembly for flat gate valve upper plane, the top of gas skirt is provided with through hole, and on or off can be played by interting to be provided with through hole
The switch connecting rod of the valve rod of flat gate valve is closed, is also associated with putting for discharge the leakage gas in gas skirt on gas skirt
Device of air.
Further, the gas skirt includes the crossover sub for being set in valve stem nut lower outside, the crossover sub
Longitudinal section is convex-down, and gas collection cover body is provided with the circular table in the middle part of crossover sub.
Further, gas collection cover body includes setting the protection shell on the circular table in the middle part of crossover sub, protects outer
Shell top is threaded with pressure cap, and the top of pressure cap is provided with the through hole for being used for interspersed switch connecting rod.
Further, protect shell that the circular table junction in the middle part of crossover sub is provided with sealing ring, protect shell
Sealing ring is provided with the junction of pressure cap.
Further, the switch connecting rod includes the interspersed rotation back of the body cap set in through-holes, and rotation back of the body cap bottom leads to
Cross and be threaded with for opening or closing valve rod swivel joint.
Further, the swivel joint is interior hexagonal structure, is coordinated with the outer hexagonal structure on valve stem nut top.
Further, rotate and be provided with bearing between the through hole at the top of back of the body cap and pressure cap.
Further, means of deflation is connected on pressure cap, and the means of deflation includes the vent connection being connected on pressure cap
And it is connected to the deflation stop valve on vent connection.
Further, the described top board and the drop-down that hold down assembly including being separately positioned on flat gate valve the upper side and lower side
Plate and some pull bars for connecting top board and lower pulling plate, the top board are provided with screwed hole, and the screwed hole is with protecting
The external screw thread for protecting outer side is connected.
Compared with prior art, the utility model has technique effect beneficial below：
After combination sealing (packing) failure of the inside of flat gate valve, when there is gate valve leakage situation, this practicality is installed
Novel valve leaks outside controller, valve is slowly opened by rotary switch connecting rod, when valve is opened to maximum position, utilizes
Tool jams valve gas passage, after gambling plug instrument is blocked, the gas of gas skirt is discharged using means of deflation, treats that gas discharges
After completely, corresponding valve leakage out of steam system controller is removed, removes valve upper body, changes combination sealing, avoids the hair of danger
It is raw.
Further, by the way that gas skirt is designed as into crossover sub, protective housing and pressure cap three parts, can make to add first
Work technique is simpler, additionally by setting crossover sub, in the case where body size changes, it is only necessary to change under crossover sub
Partial diameter, it is not necessary to change protective housing and pressure cap.
Further, switching connecting rod includes rotation back of the body cap and is threadedly attached in the rotation of rotation back of the body cap bottom connecing
Head, six sides and outer six sides of valve stem nut, which coordinate, in swivel joint carries out being turned on and off for valve.
Further, by setting bearing more can rotate rotation back of the body cap and swivel joint in labour-saving.
Further, hold down assembly and be provided with screwed hole, the screw thread including top board, lower pulling plate and pull bar, top board
Hole and the external screw thread of protection outer side are connected, and shell will be protected to compress by the mating connection of top board and protection shell
On crossover sub, with reference to even closer, and convenient dismounting.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Wherein, 1, flat gate valve；2nd, pull bar；3rd, crossover sub；4th, top board；5th, shell is protected；6th, swivel joint；7th, press
Cap；8th, back of the body cap is rotated；9th, bearing；10th, vent connection；11st, deflation stop valve；12nd, gate valve rod；13rd, valve stem nut；14th, under
Arm-tie.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1, a kind of valve leakage out of steam system controller, including be set in the top of flat gate valve 1 gas skirt and for will
Gas skirt is pressed on holding down assembly for the upper plane of flat gate valve 1, and the top of gas skirt is provided with through hole, interts in through hole and be provided with energy
Enough open or close the switch connecting rod of the valve rod 12 of flat gate valve 1, be also associated with gas skirt for will be in gas skirt it is outer
The means of deflation of gas leakage body discharge.
Gas skirt includes the crossover sub 3 for being set in the lower outside of valve stem nut 13, and the longitudinal section of crossover sub 3 is
Convex, gas collection cover body is provided with the circular table at the middle part of crossover sub 3, gas collection cover body includes setting in crossover sub 3
Protection shell 5 on the circular table in portion, protection shell 5 top are threaded with pressure cap 7, and the top of pressure cap 7, which is provided with, to be used to wear
The through hole of socket/switch connecting rod, protection shell 5 and the circular table junction at the middle part of crossover sub 3 are provided with sealing ring, protect
The junction of shell 5 and pressure cap 7 is provided with sealing ring, and switch connecting rod includes the interspersed rotation back of the body cap 8 set in through-holes, rotation
The bottom of back of the body cap 8 has been connected through a screw thread for opening or closing the swivel joint 6 of valve rod 12, and swivel joint 6 is interior hexagonal structure, with
The outer hexagonal structure on the top of valve stem nut 13 coordinates, by driving the rotation of valve stem nut 13 to carry out the motion with ovable valve stem 12,
Bearing 9 is provided between the through hole at rotation back of the body cap 8 and the top of pressure cap 7；Means of deflation is connected on pressure cap 7, the means of deflation bag
The deflation stop valve 11 for including the vent connection 10 being connected on pressure cap 7 and being connected on vent connection 10.
Hold down assembly and the top board 4 including being separately positioned on the upper side and lower side of flat gate valve 1 and lower pulling plate 14 and be used for
Some pull bars 2 of top board 4 and lower pulling plate 14 are connected, the top board 4 is provided with screwed hole, the screwed hole and protection shell
The external screw thread in 5 outsides is connected.
Implementation process of the present utility model is further described below in conjunction with the accompanying drawings：
As shown in figure 1, flat gate valve 1 is 65/70 flat gate valve, combination sealing is installed for the upper enclosure of flat gate valve 1
Position, because long-time uses, combined seal ring failure.The flat gate valve 1 used on gas field just occurs along valve rod 12
The position that direction gas leakage, particularly upper body have fabrication hole is easier to situation about leaking outside occur.Once it was found that valve leakage out of steam system
When, leakage controller of the present utility model is installed to valve upper end, tenses top board 4 and lower pulling plate 14 with pull bar 2, is put down with set
Plate gate valve 1 and protection shell 5, swivel joint 6, pressure cap 7, the connection for rotating back of the body cap 8 and bearing 9, play an outer protection,
The cavity that the control of leakage gas is formed in protection shell 5 and pressure cap 7；Top board 4 and lower pulling plate 14 are connected by pull bar 2；Protect
Shield shell 5 and pressure cap 7 are threadedly coupled, sealing ring sealing, to form the inner chamber of a sealing；Swivel joint 6 and rotation back of the body cap 8
Threaded connection, because swivel joint 6 is interior hexagonal structure, torsion can be applied at the top of swivel joint 6, drive swivel joint 6
The valve stem nut 13 of set rotates, and reaches the purpose for opening or closing valve rod 12；Thrust is pressed between swivel joint 6 and pressure cap 7
Bearing 9, the activity under the drive of torsion of swivel joint 6 can be made flexible；Gap passes through sealing ring between pressure cap 7 and rotation back of the body cap 8
Sealed, make to form the sky being fully sealed between protection shell 5, swivel joint 6, pressure cap 7, rotation back of the body cap 8 and flat gate valve 1
Between；Pressure cap 7 and vent connection 10 are threadedly coupled, and connect the parts such as high pressure venting stop valve 11 and pressure gauge, are reached in pressure
During certain boundary, high pressure venting pipe can be connected after deflation stop valve 11, opens deflation stop valve 11, by sebific duct water conservancy diversion,
The gas in cavity that discharge 1 and protection shell 5 and pressure cap 7 are formed.
In combination sealing (packing) failure of the inside of flat gate valve 1, in valve rod 12, the valve stem nut of flat gate valve 1
When 13 position is leaked, flat gate valve 1 to be closed, valve leakage out of steam system controller is installed, rotation back of the body cap 8 allows valve slowly to open,
When valve is opened to maximum position, using tool jams valve gas passage, after gambling plug instrument and blocking, deflation stop valve is utilized
The gas of 11 discharge controller inner chambers.After gas discharge completely, corresponding valve leakage out of steam system controller is removed, removes valve top
Housing, change combination sealing.
Claims (9)
1. a kind of valve leakage out of steam system controller, it is characterised in that including being set in the gas skirt on flat gate valve (1) top and being used for
Gas skirt is pressed on holding down assembly for flat gate valve (1) upper plane, the top of gas skirt is provided with through hole, interts in through hole and set
There is the switch connecting rod for the valve rod (12) that can open or close flat gate valve (1), be also associated with being used for gas collection on gas skirt
The means of deflation of leakage gas discharge in cover.
2. a kind of valve leakage out of steam system controller according to claim 1, it is characterised in that the gas skirt includes being set in valve
The crossover sub (3) of stem nut (13) lower outside, crossover sub (3) longitudinal section are convex-down, in the middle part of crossover sub (3)
Circular table on be provided with gas collection cover body.
3. a kind of valve leakage out of steam system controller according to claim 2, it is characterised in that gas collection cover body, which includes setting, to be changed
Protection shell (5) on circular table in the middle part of joint (3), protection shell (5) top are threaded with pressure cap (7), pressure cap (7)
Top be provided with the through hole for being used for interspersed switch connecting rod.
4. a kind of valve leakage out of steam system controller according to claim 3, it is characterised in that protection shell (5) and crossover sub
(3) the circular table junction in the middle part of is provided with sealing ring, protects the junction of shell (5) and pressure cap (7) to be provided with sealing ring.
5. a kind of valve leakage out of steam system controller according to claim 3, it is characterised in that the switch connecting rod includes interspersed
Rotation back of the body cap (8) in through-holes is set, and rotation back of the body cap (8) bottom has been connected through a screw thread for opening or closing valve rod (12)
Swivel joint (6).
6. a kind of valve leakage out of steam system controller according to claim 5, it is characterised in that the swivel joint (6) is interior six
Square structure, coordinate with the outer hexagonal structure on valve stem nut (13) top.
7. a kind of valve leakage out of steam system controller according to claim 5, it is characterised in that rotation back of the body cap (8) is pushed up with pressure cap (7)
Bearing (9) is provided between the through hole in portion.
8. a kind of valve leakage out of steam system controller according to claim 3, it is characterised in that means of deflation is connected to pressure cap (7)
On, the means of deflation includes the vent connection (10) being connected on pressure cap (7) and is connected to putting on vent connection (10)
Gas stop valve (11).
9. a kind of valve leakage out of steam system controller according to claim 3, it is characterised in that described holds down assembly including respectively
Be arranged on flat gate valve (1) the upper side and lower side top board (4) and lower pulling plate (14) and for connect top board (4) and drop-down
Some pull bars (2) of plate (14), the top board (4) are provided with screwed hole, and the screwed hole is outer on the outside of shell (5) with protecting
Screw thread is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720705172.8U CN206816222U (en) | 2017-06-16 | 2017-06-16 | A kind of valve leakage out of steam system controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720705172.8U CN206816222U (en) | 2017-06-16 | 2017-06-16 | A kind of valve leakage out of steam system controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816222U true CN206816222U (en) | 2017-12-29 |
Family
ID=60760538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720705172.8U Active CN206816222U (en) | 2017-06-16 | 2017-06-16 | A kind of valve leakage out of steam system controller |
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| Country | Link |
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| CN (1) | CN206816222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905445A (en) * | 2019-11-26 | 2020-03-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Valve leakage controller and method for gas well wellhead |
-
2017
- 2017-06-16 CN CN201720705172.8U patent/CN206816222U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905445A (en) * | 2019-11-26 | 2020-03-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Valve leakage controller and method for gas well wellhead |
| CN110905445B (en) * | 2019-11-26 | 2024-03-29 | 中国石油天然气集团有限公司 | Valve leakage controller and method for wellhead of gas well |
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