CN207813576U - A kind of production wellhead gate valve - Google Patents
A kind of production wellhead gate valve Download PDFInfo
- Publication number
- CN207813576U CN207813576U CN201820126422.7U CN201820126422U CN207813576U CN 207813576 U CN207813576 U CN 207813576U CN 201820126422 U CN201820126422 U CN 201820126422U CN 207813576 U CN207813576 U CN 207813576U
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- Prior art keywords
- valve
- seal face
- flashboard
- valve stem
- stem seal
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Abstract
The utility model discloses a kind of production wellhead gate valves, including valve rod（5）, valve deck（7）And flashboard（9）, valve rod（5）Bottom end be embedded in flashboard（9）Top, the valve rod（5）With flashboard（9）Junction on the upside of valve rod（5）Equipped with valve stem seal face（6）, and in valve deck（7）It is equipped with and valve stem seal face（6）Corresponding valve bonnet seal face（8）, valve stem seal face（6）With valve bonnet seal face（8）It is all made of wear-resistant material and valve stem seal face（6）With valve bonnet seal face（8）It is in the inclined plane shape that can seal against each other fitting respectively.The utility model is in respectively the inclined plane shape that can seal against each other fitting by using the surface that valve stem seal face and valve bonnet seal face and the two is made in wear-resistant material, to realize security seal；It is compact-sized, easy for installation, the labor intensity of worker is alleviated, production efficiency is improved and increases economic benefit, and is safe and convenient to use, easy to operate.
Description
Technical field
The utility model is related to technical field of oil extraction equipment, are needed when specifically one kind can avoid replacing airtight and watertight padding
It stops production and tears the production wellhead gate valve of problems with valves open from production wellhead.
Background technology
Oil extraction in oil field well head gate valve is in use for some time because of the corrosion of crude oil, natural gas, the airtight and watertight padding meeting of valve
Aging and damage.Valve rod so as to cause valve and the seal failure at valve deck, leak.When valve leaks, normally
All it is oil producing operation to be stopped, valve, which is removed, could replace airtight and watertight padding.
Invention content
The purpose of this utility model need to stop production and heavy workload for when replacing production wellhead valve sealing filler
Problem, providing a kind of can avoid stopping production when replacing airtight and watertight padding and tearing the production wellhead lock of problems with valves open from production wellhead
Valve.
The purpose of this utility model solves by the following technical programs：
A kind of production wellhead gate valve, including valve rod, valve deck and flashboard, the bottom end of valve rod are embedded in the top of flashboard,
It is characterized in that：Valve rod on the upside of the junction of the valve rod and flashboard is equipped with valve stem seal face, and is equipped on valve deck and valve rod
The corresponding valve bonnet seal face of sealing surface, valve stem seal face and valve bonnet seal face are all made of wear-resistant material and valve stem seal
Face and valve bonnet seal face are in the inclined plane shape that can seal against each other fitting respectively.
The inclined-plane in the valve stem seal face is equipped with burr or dimpled grain, then the inclined-plane in valve bonnet seal face is equipped with close with valve rod
The corresponding dimpled grain of burr or dimpled grain on the inclined-plane of cover or burr.
The lower part of the flashboard is equipped with mandril, and the bottom of mandril is positioned using safety cap.
The utility model has the following advantages compared with prior art：
Distinguish on the surface that valve stem seal face and valve bonnet seal face and the two are made by using wear-resistant material for the utility model
In the inclined plane shape that can seal against each other fitting, when valve needs replacing filler, rotation hand wheel keeps valve stem seal face and valve deck close
Cover is bonded, and then safety cap is tightened in lower end makes mandril hold out against flashboard, and valve rod is made to hold out against valve deck, to make valve stem seal face and valve
Lid sealing surface realize security seal, later can striking, gland replace airtight and watertight padding, avoid replacement sealing fill out
It need to stop production when material and tear the trouble of valve open from production wellhead；The production wellhead gate valve it is compact-sized, easy for installation, alleviate
The labor intensity of worker, effectively save production cost improve production efficiency and increase economic benefit, and side safe to use
Just, easy to operate.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the production wellhead gate valve of the utility model；
Attached drawing 2 is the Section A-A structural schematic diagram in attached drawing 1；
Attached drawing 3 is the enlarged structure schematic diagram that circle encloses part B in attached drawing 2.
Wherein：1-handwheel；2-holders；3-glands；4-airtight and watertight paddings；5-valve rods；6-valve stem seal faces；
7-valve decks；8-valve bonnet seal face；9-flashboards；10-mandrils；11-safety caps.
Specific implementation mode
The utility model is further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figs. 1-3：A kind of production wellhead gate valve, including valve rod 5, valve deck 7 and flashboard 9, the bottom end of valve rod 5 are set
On the top of flashboard 9, the lower part of flashboard 9 is equipped with mandril 10, and the bottom of mandril 10 is positioned using safety cap 11, the valve rod 5 and
Valve rod 5 on the upside of the junction of flashboard 9 is equipped with valve stem seal face 6, and equipped with corresponding with valve stem seal face 6 on valve deck 7
Valve bonnet seal face 8, valve stem seal face 6 and valve bonnet seal face 8 are all made of wear-resistant material and valve stem seal face 6 and valve deck are close
Cover 8 is in the inclined plane shape that can seal against each other fitting respectively.In addition burr or recessed can be also equipped on the inclined-plane in valve stem seal face 6
Line, then the inclined-plane in valve bonnet seal face 8 be equipped with and the burr or the corresponding dimpled grain of dimpled grain or convex on the inclined-plane in valve stem seal face 6
Line passes through the mutual chimeric to reinforce sealing performance of asperities.
As shown in Figs. 1-3：The production wellhead gate valve of the utility model makes valve rod 5 to moving up in use, rotation hand wheel 1
It is dynamic, the safety cap 11 of lower end is tightened when valve stem seal face 6 and the contact of valve bonnet seal face 8, and mandril 10 is made to hold out against flashboard 9, to
So that valve stem seal face 6 and the cover 8 of valve deck is fitted closely, realizes security seal.The holder 2 of valve can thus be removed and filled out
Expect gland 3, directly replaces airtight and watertight padding 4.
Valve stem seal face 6 and valve bonnet seal face 8 and the surface of the two point is made by using wear-resistant material in the utility model
The inclined plane shape of fitting Cheng not can be sealed against each other, when valve needs replacing filler, rotation hand wheel 1 makes valve stem seal face 6 and valve
Lid sealing surface 8 is bonded, and then safety cap 11 is tightened in lower end makes mandril 10 hold out against flashboard 9, and valve rod 5 is made to hold out against valve deck 7, to make valve
Security seal is realized in bar sealing surface 6 and valve bonnet seal face 8, later being capable of striking 2, the replacement airtight and watertight padding of gland 3
4, it need to stop production when avoiding replacement airtight and watertight padding and tear the trouble of valve open from production wellhead；The structure of the production wellhead gate valve is tight
It gathers, is easy for installation, alleviating the labor intensity of worker, effectively save production cost improves production efficiency and increases economy
Benefit, and it is safe and convenient to use, easy to operate.
Above example is only to illustrate the technological thought of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical solution each falls within this reality
Within the scope of novel protected；The technology that the utility model is not directed to can be realized by the prior art.
Claims (3)
1. a kind of production wellhead gate valve, including valve rod（5）, valve deck（7）And flashboard（9）, valve rod（5）Bottom end be embedded in flashboard
（9）Top, it is characterised in that：The valve rod（5）With flashboard（9）Junction on the upside of valve rod（5）Equipped with valve stem seal face
（6）, and in valve deck（7）It is equipped with and valve stem seal face（6）Corresponding valve bonnet seal face（8）, valve stem seal face（6）And valve deck
Sealing surface（8）It is all made of wear-resistant material and valve stem seal face（6）With valve bonnet seal face（8）It is in that can seal against each other respectively
The inclined plane shape of fitting.
2. production wellhead gate valve according to claim 1, it is characterised in that：The valve stem seal face（6）Inclined-plane on
Equipped with burr or dimpled grain, then valve bonnet seal face（8）Inclined-plane be equipped with and valve stem seal face（6）Inclined-plane on burr or dimpled grain
Corresponding dimpled grain or burr.
3. production wellhead gate valve according to claim 1, it is characterised in that：The flashboard（9）Lower part equipped with top
Bar（10）, mandril（10）Bottom use safety cap（11）Positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820126422.7U CN207813576U (en) | 2018-01-25 | 2018-01-25 | A kind of production wellhead gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820126422.7U CN207813576U (en) | 2018-01-25 | 2018-01-25 | A kind of production wellhead gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813576U true CN207813576U (en) | 2018-09-04 |
Family
ID=63325242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820126422.7U Active CN207813576U (en) | 2018-01-25 | 2018-01-25 | A kind of production wellhead gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813576U (en) |
-
2018
- 2018-01-25 CN CN201820126422.7U patent/CN207813576U/en active Active
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| GR01 | Patent grant |