CN209262295U - A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve - Google Patents
A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve Download PDFInfo
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- CN209262295U CN209262295U CN201920039449.7U CN201920039449U CN209262295U CN 209262295 U CN209262295 U CN 209262295U CN 201920039449 U CN201920039449 U CN 201920039449U CN 209262295 U CN209262295 U CN 209262295U
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Abstract
It is related to a kind of plug valve of high voltagehigh frequency time switch taper adjustable sealing structure of plug valve, it is that the intracorporal valve chamber design of valve is tapered, cock and sealing arcs in valve chamber and sealing arcs be the male-tapered matched with valve chamber, successively there are cock upper seal, sealing arcs, sealing arcs positioning pin, arcs sealing ring between valve chamber and cock, sealing arcs can be moved up and down along valve chamber, respectively there are a first passage and second channel in valve chamber axis two sides, and be connected with each other with valve chamber, valve deck is connect in valve chamber bottom and with cock bottom.The utility model is suitable for oil gas field Operating Pressure, seals arcs and integral taps are wear-resistant and sealed reliable, be able to achieve under high pressure, high frequency single switching requirements, and critical component is made to domesticize, support oil field high efficiency, low cost development.
Description
Technical field
The utility model relates to oil gas field Operating Pressure valve more particularly to a kind of meet what high frequency time under high pressure switched
Taper adjustable sealing structure plug valve.
Background technique
During oilfield operation with pressure, by the cooperation of ram preventer and balance control blowout manifold, string collar is realized
It is with pressure that by ram block, by taking 2800 meters of down-hole string operations as an example, the single plug valve of overall process need to be switched more than 280 times,
It must assure that the stability of plug valve high pressure, high frequency time switch.
General plug valve frequently switches on serious wear under high pressure on the market, and dismounting is tired when easily failing and maintaining
It is difficult.
Summary of the invention
The utility model proposes a kind of plug valve of taper adjustable sealing structure, which can be by adjusting itself
Pyramidal structure guarantee seal clearance, it is ensured that valve remains effective sealing after hyperbaric environment medium-high frequency time switch, and
Fast assembling-disassembling is realized when maintenance.
To achieve the above object, the technical solution of the utility model are as follows:
The utility model includes: valve body, valve deck, cock, cock cap, sealing arcs, cock upper seal, arcs sealing
Circle, valve bonnet seal circle, cock lower seal, the intracorporal valve chamber of valve is tapered, and in the bottom of valve chamber, small end exists the big end of taper
Top in valve chamber, cock and sealing arcs are in valve chamber, and respectively there are two symmetrical for the two sides of the valve chamber axis of the inner cavity of valve body
Sealing arcs, the outsides of two sealing arcs be the taper to match with the intracorporal valve chamber of valve, inside be it is cylindrical, cock
Middle part is in two sealing arcs, and interior and with cock the bottom that valve deck protrudes into the bottom of the intracorporal valve chamber of valve is connect, cock cap
It is connect with the cock stretched out outside valve chamber, there are two 90 ° each other of cock valve switching state instruction pin, sealing arcs positioning for cock cap
Pin is separately mounted in valve chamber and sealing arcs, and sealing arcs can limit sealing arcs when moving along valve chamber and turn around valve chamber axis
Dynamic, respectively there are a first passage hole, second channel hole, two sealing arcs and cock in the two sides of the valve chamber axis of the valve chamber of valve body
There is the through-hole of the connection coaxial with second channel hole with first passage hole, there is cock upper seal, valve body between valve body and cock
There is arcs sealing ring between sealing arcs, has valve bonnet seal circle between valve body and valve deck, have under cock between valve deck and cock
Sealing ring.
Between the inner conical surface and valve chamber axis of the valve chamber of valve body and sealing arcs and valve chamber inner conical surface between angle be respectively
Acute angle a, a value are 5 ° -7 °, and the gap between two sealing arcs 5 is h, and h value is 2-4mm.
The valve chamber of valve body is arranged there are two along the valve body greasing hole of valve chamber axisymmetrical, fluid above fluid channel axis
Sealing arcs positioning pin mounting hole of the setting two along valve chamber axisymmetrical below passage axis, seals arcs positioning pin mounting hole
Opening down, sealing arcs positioning pin mounting hole axis and fluid channel axis are at 50 °.
Respectively there are two stepped hole, the first shoulder of middle and upper part is used to install cock for the upper and lower part of the valve chamber of valve body
Respectively there are symmetrical, the identical first passage hole of size, second channel hole in upper seal, the two sides of valve chamber axis.
The vertical valve body in the upper surface of valve body installs 1 cock cap backing pin.It is rotated within the scope of 90o for limiting cock cap.
It is cylinder inside two sealing arcs, section is L shape, and shoulder is formed on cylindrical form interior surface bottom, seals arcs
Outer surface setting one is parallel to the small boss face of male cone (strobilus masculinus), and small boss identity distance is P from male cone (strobilus masculinus) height, and P is 0.41 ~ 0.45mm；
The arcs sealing ring mounting groove in upright shoulders face is provided on small boss face.
A centre bore, centre bore and the first of valve axis two sides is respectively set along fluid channel axis in two sealing arcs
Channel aperture, second channel pore size are identical.
1 sealing arcs greasing through sealing arcs male cone (strobilus masculinus) and cylindrical form interior surface is arranged in each sealing arcs
Hole.
Each sealing arcs is equipped with sealing arcs positioning pin sliding groove along itself male cone (strobilus masculinus).Seal the sliding of arcs positioning pin
For slot through sealing arcs male cone (strobilus masculinus), groove bottom and sealing arcs inner cylinder face are coaxial.
The plug valve upper seal is lip shape, is mounted in the first shoulder hole on valve body top, and antifriction metal branch is had
Pushing out ring, antifriction metal support ring are contacted with cock.Lip shape is open towards fluid channel axis when installation.
The plug valve lower seal is lip shape, has antifriction metal support ring, and antifriction metal support ring is contacted with cock.
Lip shape is open towards fluid channel axis when installation.
A centre bore is respectively set along fluid channel axis in cock, with the first passage apertures of valve axis two sides, second
Channel pore size is identical.
Sealing arcs material is spheroidal graphite cast-iron, and there is nickel-phosphorus alloy coating in cock outer surface.
The good effect of the utility model are as follows:
1, the plug valve adapts to oil gas field Operating Pressure field, real by mating operation horizontal weighing apparatus control blowout manifold system with pressure
Effective sealing of tubing annulus pressure and the balance open flow of annular space medium are implemented during existing Operating Pressure；
2, the conical surface wear-resistant seal arcs of plug valve design, can be realized durable reliable sealing, improve plug valve and use
Service life；
3, the integral taps of plug valve design, effectively avoid cock in operation process mesohigh high frequency time switching process
Fast Wearing phenomenon；
4, the stopcock structure is novel, safe and reliable, can adapt to the requirement that high frequency time switchs under high pressure, realizes with pressure
The voltage-controlled critical component processed production domesticization of operation annular, it is suppressed that importing technology and price fixing support oil gas field high efficiency, low
Cost exploitation, has filled up domestic blank.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the top view of the utility model plug valve;
Fig. 3 is the C-C revolved sectional view of Fig. 2 of the utility model plug valve;
Fig. 4 is that the sealing arcs of the utility model plug valve and cock cooperation are schemed;
Fig. 5 is the utility model spool assembly structure chart;
Fig. 6 is the left cross-sectional view of the utility model valve body;
Fig. 7 is the utility model valve body main sectional view;
Fig. 8 is that the utility model seals arcs main view;
Fig. 9 is that the utility model seals arcs top view;
Figure 10 is A-A sectional view in the utility model Fig. 8;
Figure 11 is I partial enlarged view in the utility model Figure 10;
Figure 12 is B-B sectional view in the utility model Fig. 8;
Figure 13 is that the utility model figure seals arcs three-dimensional figure.
Specific embodiment
The utility model is described further with reference to the accompanying drawing.
Referring to Fig. 1-13, the valve chamber 20 in valve body 1 is tapered, and the big end of taper is in the bottom of valve chamber 20, and small end is in valve
The top of chamber 20, the angle between 20 inner conical surface of valve chamber and valve chamber axis 16 are 6 °, cock 3 and sealing arcs 5 in valve chamber 20,
The outside for sealing arcs 5 is the taper to match with valve chamber 20, and inside is cylinder, and section is L shape, the valve of the valve chamber of valve body 1
Respectively there are symmetrical first passage hole 18, a second channel hole 19, first passage 18 and second channel in the two sides of cavity axis 17
19 are connected with each other with valve chamber 20, and valve deck 2 protrudes into two steps of the bottom of the valve chamber 20 in valve body 1 and the bottom with cock 3
Connection, valve body 1, the through-bore axis for sealing arcs 5 and 17 axis of fluid channel are overlapped, and cock 3 can be rotated around valve chamber axis 16, be turned
When to fully open position, 3 through-bore axis of cock and 17 axis of fluid channel are overlapped, and first passage hole 18 and second channel hole 19 are complete
Connection, fluid can flow freely in first passage hole 18 and second channel hole 19, when cock 3 rotates to through-bore axis and fluid
When 17 axis of channel is vertical, first passage hole 18 and second channel hole 19 separate completely, and fluid channel is cut off.Valve body 1 and rotation
Installed between plug 3 installed between cock upper seal 9, valve body 1 and sealing arcs 5 arcs sealing ring 10, valve body 1 and valve deck 2 it
Between install cock lower seal 12 be installed between valve bonnet seal circle 11, valve deck 2 and cock 3, fluid is logical in valve chamber 20, first always
In road 18 and second channel 19, without the place leakage from contact connectios such as valve body 1, valve deck 2, cock 3 and sealing arcs 5.
Cock cap 4 is mounted on 3 upper end of cock, using big gasket 6, cock fastening gasket 7 and cock fastening screw 8 by cock
Cap 4, which compresses, guarantees that cock cap 4 is connect with 3 top of cock.Seal arcs 5, cock 3 center through-hole and first passage hole 18,
The pore size in second channel hole 19 is identical；
Rotation cock cap 4 can drive cock 3 to rotate together, and close in the cock that is mounted in valve body top first shoulder 21
Seal 12 occurs mutually to rotate, and the antifriction metal support ring in cock upper seal 12 can effectively extend close in cock at this time
The service life of seal 12.Make first passage hole 18, second channel hole 19,3 through-hole of cock and sealing arcs 5 when cock 3 turns to
When through-hole is all aligned and is overlapped with fluid channel axis 17, one of cock valve switching state on cock cap 4 refers at this time
Show and shows that plug valve is in the open state when pin 13 is contacted with cock cap backing pin 14.Make first passage when cock 3 turns to
Hole 18, second channel hole 19, when sealing the centre bore three axis and vertical 3 centre bore axis of cock of arcs 5, cock cap at this time
When another cock valve switching state instruction pin 13 and cock cap backing pin 14 on 4 contact, show that plug valve has been in pass
Closed state.Achieve the purpose that prompt field personnel with this.
Valve body 1 is provided with the sealing arcs positioning pin mounting hole 23 that 2 openings deviate from 17 axis of fluid channel, installs in hole
There is open-type to seal arcs positioning pin 15, sealing arcs 5 are provided with sealing arcs positioning pin sliding groove 25 in Fig. 9, seal arcs 5
It can be moved up and down along the valve chamber of valve body 1.
When assembling plug valve, first cock 3 is fitted into sealing arcs 5, so that the two shoulder is in contact, and will be in 2
Heart axially bored line is overlapped, and after cock lower seal 12 is installed in cock 3, while with big gasket 6, cock fastening gasket 7 and being revolved
Valve deck 2 is fastened in cock 3 by plug fastening screw 8, and when fastening, 2 upper surface of valve deck compresses sealing 5 lower surface of arcs, is being sealed
Arcs sealing ring 10 is installed in arcs 5, becomes a spool assembly 27 after valve bonnet seal circle 11 is installed on valve deck 2.
Pico- rotation valve deck 2, valve deck 2 pushes sealing arcs 5 and cock 3 to slide along 20 inner conical surface of valve chamber, until valve in sliding process
The centre bore axis of core assembly 27 is overlapped with 17 axis of fluid channel.When needing repairing, valve deck 2 is screwed out, valve deck 2 drives valve
Core assembly 27 is detached from valve body, realizes being rapidly assembled and disassembled for plug valve.
It is installed in valve body 1 after 27 groups of spool assembly are installed, until the centre bore axis and fluid of spool assembly 27
When 17 axis of channel is overlapped, the spacing between two sealing arcs 5 is 3 ㎜.Here away under, cylinder in two sealing arcs 5
The external cylindrical surface of face and cock 3 keeps appropriate gap, and the injection lubrication stop-leak compound from grease nipple 26, lubrication stop-leak compound passes through valve body
Valve body greasing hole 22 on 1 is filled up between sealing arcs 5 and cock 3 again by the sealing arcs greasing hole 24 in sealing arcs 5
Gap realize the auxiliary seal of valve, extra lubrication stop-leak compound can be stored in the grease storage groove 28 in valve deck 2.
Spacing when the centre bore axis of spool assembly is overlapped with 17 axis of fluid channel, between two sealing arcs 5
For 3 ㎜, plug valve high frequency time causes cock 3 to wear after switching after, pico- rotary valve cover 2, valve deck 2 is with 27 edge of movable valve plug assembly
The taper valve chamber of valve body 1 move up, tightening sealing arcs spacing makes the external cylindrical surface for sealing 5 inner cylinder face of arcs and cock 3 begin
Keep appropriately sealed gap eventually, spool assembly 27 close to valve chamber 20 it is mobile during, sealing arcs positioning pin 15 blocks always
In sealing arcs positioning pin sliding groove 25, sealing arcs 5 are moved up and down in valve chamber without rotating.
Sealing arcs bulk material is spheroidal graphite cast-iron, has lubricity, can reduce the number of plug valve maintenance lubrication, cock
There is nickel-phosphorus alloy coating in outer surface to improve cock surface abrasion resistance.
Claims (10)
1. a kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve, comprising: valve body, valve deck, cock, cock cap, close
Seal arcs, cock upper seal, arcs sealing ring, valve bonnet seal circle, cock lower seal, it is characterised in that: the intracorporal valve of valve
Chamber is tapered, and the big end of taper is in the bottom of valve chamber, top of the small end in valve chamber, cock and sealing arcs in valve chamber,
Respectively there are two symmetrical sealing arcs, the outsides of two sealing arcs are and valve body for the two sides of the valve chamber axis of the inner cavity of valve body
The taper that interior valve chamber matches, inside are cylinder, and in two sealing arcs, it is intracorporal that valve deck protrudes into valve at the middle part of cock
Interior and with cock the bottom of the bottom of valve chamber is connect, and cock cap is connect with the cock stretched out outside valve chamber, and there are two mutually for cock cap
For 90 ° of cock valve switching state instruction pin, arcs positioning pin is sealed respectively on valve chamber and sealing arcs, sealing arcs positioning
Pin is separately mounted in valve chamber and sealing arcs, and sealing arcs can limit sealing arcs when moving along valve chamber and turn around valve chamber axis
Dynamic, respectively there are a first passage hole, second channel hole, two sealing arcs and cock in the two sides of the valve chamber axis of the valve chamber of valve body
There is the through-hole of the connection coaxial with second channel hole with first passage hole, there is cock upper seal, valve body between valve body and cock
There is arcs sealing ring between sealing arcs, has valve bonnet seal circle between valve body and valve deck, have under cock between valve deck and cock
Sealing ring.
2. a kind of high voltagehigh frequency according to claim 1 time switch taper adjustable sealing structure plug valve, it is characterised in that:
Between the inner conical surface and valve chamber axis of the valve chamber of valve body and sealing arcs and valve chamber inner conical surface between angle be respectively respectively be acute angle
A, a value are 5 ° -7 °, and the gap between two sealing arcs is h, and h value is 2-4mm.
3. a kind of high voltagehigh frequency according to claim 1 or 2 time switch taper adjustable sealing structure plug valve, feature exist
It is arranged that there are two along the valve body greasing hole of valve chamber axisymmetrical, fluid channel above fluid channel axis in: the valve chamber of valve body
Sealing arcs positioning pin mounting hole of the setting two along valve chamber axisymmetrical below axis, sealing arcs positioning pin mounting hole opening
Downward, sealing arcs positioning pin mounting hole axis and fluid channel axis are at 50 °.
4. a kind of high voltagehigh frequency according to claim 3 time switch taper adjustable sealing structure plug valve, it is characterised in that:
Respectively there are two stepped hole, respectively there are a symmetrical, size phase in the two sides of valve chamber axis for the upper and lower part of the valve chamber of valve body
First passage hole together, second channel hole.
5. a kind of high voltagehigh frequency according to claim 1 or 2 time switch taper adjustable sealing structure plug valve, feature exist
In: at cylinder inside two sealing arcs, section is L shape, and shoulder is formed on cylindrical form interior surface bottom, seals arcs outer surface
The one small boss face for being parallel to male cone (strobilus masculinus) is set, and small boss identity distance is P from male cone (strobilus masculinus) height, and P is 0.41 ~ 0.45mm；Small boss
The arcs sealing ring mounting groove in upright shoulders face is provided on face.
6. a kind of high voltagehigh frequency according to claim 5 time switch taper adjustable sealing structure plug valve, it is characterised in that:
A through-hole is respectively set along fluid channel axis in two sealing arcs, the first passage aperture of through-hole and valve axis two sides, the
Two channel pore sizes are identical.
7. a kind of high voltagehigh frequency according to claim 6 time switch taper adjustable sealing structure plug valve, it is characterised in that:
Each sealing arcs is equipped with sealing arcs positioning pin sliding groove along itself male cone (strobilus masculinus), which runs through
Arcs male cone (strobilus masculinus) is sealed, groove bottom and sealing arcs inner cylinder face are coaxial.
8. a kind of high voltagehigh frequency according to claim 1 or 2 time switch taper adjustable sealing structure plug valve, feature exist
In: a through-hole is respectively set along fluid channel axis in cock, the first passage aperture, second channel aperture with valve axis two sides
Size is identical.
9. a kind of high voltagehigh frequency according to claim 1 or 2 time switch taper adjustable sealing structure plug valve, feature exist
It is lip shape in: the plug valve upper seal and plug valve lower seal, has an antifriction metal support ring, lip shape is opened when installation
Mouthful towards fluid channel axis.
10. a kind of high voltagehigh frequency according to claim 6 time switch taper adjustable sealing structure plug valve, feature exist
In: sealing arcs material is spheroidal graphite cast-iron, and there is nickel-phosphorus alloy coating in cock outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039449.7U CN209262295U (en) | 2019-01-10 | 2019-01-10 | A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920039449.7U CN209262295U (en) | 2019-01-10 | 2019-01-10 | A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve |
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| Publication Number | Publication Date |
|---|---|
| CN209262295U true CN209262295U (en) | 2019-08-16 |
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ID=67584356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920039449.7U Active CN209262295U (en) | 2019-01-10 | 2019-01-10 | A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442058A (en) * | 2019-01-10 | 2019-03-08 | 中石化四机石油机械有限公司 | A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve |
| CN113847445A (en) * | 2021-09-17 | 2021-12-28 | 浙江恒森实业集团有限公司 | Plug valve based on anti-sticking structure |
-
2019
- 2019-01-10 CN CN201920039449.7U patent/CN209262295U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442058A (en) * | 2019-01-10 | 2019-03-08 | 中石化四机石油机械有限公司 | A kind of high voltagehigh frequency time switch taper adjustable sealing structure plug valve |
| CN113847445A (en) * | 2021-09-17 | 2021-12-28 | 浙江恒森实业集团有限公司 | Plug valve based on anti-sticking structure |
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