CN205824216U - Plunger type drilling well choke valve - Google Patents
Plunger type drilling well choke valve Download PDFInfo
- Publication number
- CN205824216U CN205824216U CN201620669968.8U CN201620669968U CN205824216U CN 205824216 U CN205824216 U CN 205824216U CN 201620669968 U CN201620669968 U CN 201620669968U CN 205824216 U CN205824216 U CN 205824216U
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- China
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- valve
- guide pin
- pin bushing
- drilling well
- plunger type
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Abstract
The utility model discloses a kind of plunger type drilling well choke valve, including valve body (1), the valve seat (2) being arranged in valve body (1), valve rod assembly (3), valve body (1) is provided with valve gap (6) and housing (7), valve rod assembly (3) has valve rod (301) and the lower end being connected to valve rod (301) the spool (302) coordinated with valve seat (2), valve rod (301) is movable through valve gap (6) and to be connected with the piston (8) being located in housing (7), guide pin bushing (5) it is installed with in valve body (1), seal between guide pin bushing (5) with valve body (1) and coordinate, spool (302) can be equipped with up and down in guide pin bushing (5)；Guide pin bushing (5) is pressed abd fixed in valve body (1) by described valve gap (6).This utility model have employed valve gap and compresses the structure of guide pin bushing, valve rod plays the effect of protection, improves the safety and reliability of plunger type drilling well choke valve, extend the service life of valve, be particularly suited in the drilling condition of High Temperature High Pressure.
Description
Technical field
This utility model relates to valve technology field, is especially adapted for use in land and offshore oil, the joint of gas drilling
Drilling well choke valve in stream kill manifold.
Background technology
Choke valve is by changing throttling cross section or chock length to control the valve of fluid flow.Plunger-type throttle valve is used
In the manifold system being arranged on oil, gas drilling, it is used for controlling production flow and the pressure of Oil/gas Well.Along with oil is opened
Adopt the reinforcement of dynamics, the continuous appearance of high pressure even supertension oil well, drilling equipment is had higher requirement.Drilling well throttles
Valve, as the core component of choke manifold, plays the effect controlling well kick pressure in drilling process, by regulation choke valve
Aperture, it is achieved Stress control.The safety and reliability of drilling well choke valve is main for evaluating the two of choke manifold level
Factor.
In the structure of existing choke valve, the spool of the cemented carbide structure of valve rod and lower end thereof exposes in the fluid passage,
Under the long-term percussion by high pressure medium, valve rod is easily generated vibrations, and the spool of cemented carbide structure easily divides with valve rod
From with come off, even can cause the problems such as valve stem crack time serious, cause choke valve ineffective.
Strong especially for corrosivity, the drilling condition of the High Temperature High Pressure that erosion is high, the choke valve of prior art is the most not
It is suitable for again.Therefore, need the structure for choke valve at present badly and improve, to strengthen the corrosion-resistant of choke valve and Anti-erosion energy
Power so that it is be more suitable in drilling well cutting condition.
Summary of the invention
In view of this, in order to overcome the defect of above-mentioned prior art, the purpose of this utility model is to provide a kind of corrosion-resistant
Property and the higher choke valve of erosion wear resistance, to promote the safety and reliability of choke valve, thus be applicable to High Temperature High Pressure
In drilling condition.
In order to achieve the above object, this utility model is by the following technical solutions:
A kind of plunger type drilling well choke valve, the valve seat including valve body, being arranged in described valve body, valve rod assembly, on valve body
Being provided with valve gap and housing, described valve rod assembly has valve rod and the lower end being connected to described valve rod the valve coordinated with described valve seat
Core, described valve handle activity through described valve gap and is connected with the piston being located in described housing, it is characterised in that:
Being installed with guide pin bushing in described valve body, seal and coordinate between described guide pin bushing with described valve body, described spool can be transported up and down
It is equipped with in described guide pin bushing dynamicly；Described guide pin bushing is pressed abd fixed in described valve body by described valve gap.
Plunger type drilling well choke valve of the present utility model have employed the structure of guide pin bushing, and spool moves up and down and reality in guide pin bushing
Now opening and closing valve, the medium that efficiently avoid High Temperature High Pressure directly impacts valve rod, protects valve rod assembly, extends
The service life of valve.
Preferably, the upper periphery of described guide pin bushing has the stage portion of outwardly convex and is supported on described valve body, described in lead
The upper end of set has the raised section raised up, and the bottom of described valve gap is connected and under described valve gap with described valve body screw thread
End has the groove being enclosed within described raised section, and described stage portion is pressed on described valve body by the lower end of described valve gap.
It is highly preferred that be provided with guide pin bushing lower seal on the periphery that described guide pin bushing is below described stage portion and between described valve body
Assembly, is provided with black box on guide pin bushing between periphery and the groove of described valve gap of the raised section of described guide pin bushing.
Wherein, between top and the upper fixed seat of described valve rod, between the middle part of described valve rod and described valve gap and institute
State to be sealed by sealing member respectively between spool with described guide pin bushing and coordinate.At the spool of the top of valve rod, middle part and bottom all
It is provided with sealing member, not only acts as the effect of more preferably sealing, and it is more steady to make valve rod assembly run.
Preferably, described housing being fixed with upper fixed seat, fixed seat is provided with opening indicator device, described valve
The upper end of bar is upward through fixed seat and is connected with described opening indicator device.
In order to realize local valve position, described opening indicator device includes push rod and the instruction being connected with described valve rod
Dish.Preferably, described instruction dish is provided with indicator board with a scale.The up and down motion of valve rod assembly drives push rod to move up and down,
The scale shown on indicator board by push rod, can show the aperture of valve.
In order to realize long-range valve position, described plunger type drilling well choke valve also includes valve position indicator and aperture
Table, described valve position indicator detects the linear displacement signal of described valve rod and described linear displacement signal is converted to telecommunications
Number it is delivered on the aperture table of throttle well killing manifold.
Preferably, the inner wall sealing that the upper and lower of the outer circumference surface of described piston is respectively equipped with described housing coordinates
Piston seal.Use the structure of double containment, make piston run more steady.
In a particular embodiment, described valve rod is provided with piston in the part exceeding described valve gap and fixes step and piston connection
Screw thread, described piston is threadedly attached on described piston connection screw thread and is fixed on described piston by locking nut and fixes
On step.
Owing to using technique scheme, what this utility model reached has the technical effect that
(1) by increasing the structure of guide pin bushing, it is to avoid medium directly impacts valve rod, strengthen utility model corrosion resistance and
Erosion wear resistance, extends life of valve；
(2) sealing member it is designed with respectively in the upper, middle and lower of valve rod assembly, it is achieved good sealing effectiveness same
Time, make valve rod assembly run more steady；
(3) piston uses the structure of double containment, and sealing effectiveness is more preferably and piston runs more steady.
Accompanying drawing explanation
Fig. 1 is the front view of plunger type drilling well choke valve of the present utility model.
Fig. 2 is that the C-C in Fig. 1 is to sectional view.
Fig. 3 is that the A in Fig. 1 is to partial view.
Fig. 4 is that the B in Fig. 1 is to partial view.
Fig. 5 is the I portion enlarged diagram in Fig. 2.
In accompanying drawing: 1-valve body, 2-valve seat, 3-valve rod assembly, 301-valve rod, 302-spool, 303-piston fixes step,
304-piston connects screw thread, 4-plug, 5-guide pin bushing, 51-stage portion, 52-raised section, 6-valve gap, 61-groove, 7-housing, and 8-lives
Plug, 9-upper fixed seat, 10-sensor protection cylinder, 11-nut, 12-stud, 13-push rod, 14-instruction dish, 15-spring washer,
16-gasket ring, 17-dust ring, 18-valve rod upper seal, 19-O type circle, 20-locking nut, 21-piston seal, 22-leads
Seal in the middle part of band, 23-valve rod, 24-valve stem packing, 25-gasket ring, 26-back-up ring, 27-stem lower portion sealing member, 28-back-up ring,
29-O shape circle, 30-back-up ring, 31-O shape circle, 32-back-up ring, 33-O shape circle, 34-O shape circle, 35 nameplates, 36 directional arrows, 37-riveting
Nail, 38-indicator board, 39-screw.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is preferred embodiment described in detail.
Embodiment one
Refer to Fig. 1 to 5, a kind of plunger type drilling well choke valve of the present embodiment, including valve body 1, valve seat 2, it is arranged on valve
Valve seat 2 in body 1, valve rod assembly 3, plug 4, guide pin bushing 5, valve gap 6, housing 7, piston 8, upper fixed seat 9, valve opening instruction dress
Put, valve position indicator and sensor protection cylinder 10.
Guide pin bushing 5 is located in valve body 1, seals and coordinate between guide pin bushing 5 with valve body 1.Valve rod assembly 3 has valve rod 301 and connects
At the lower end of valve rod 301 spool 302 that coordinates with valve seat 2, spool 302 is connected with valve rod 301 by screw thread and is consolidated by screw
Fixed.Spool 302 can be equipped with up and down in guide pin bushing 5, and the valve rod assembly 3 band movable valve plug 302 that moves up and down moves up and down,
Thus realize the opening and closing of valve.In the present embodiment, spool 302 is cemented carbide structure.
Valve gap 6 is arranged on valve body 1, is pressed abd fixed in valve body 1 by guide pin bushing 5, and the upper end activity of valve rod 301 passes valve gap
6.The upper periphery of guide pin bushing 5 has the stage portion 51 of outwardly convex and is supported on described valve body 1, and the upper end of guide pin bushing 5 has upwards
Protruding raised section 52, threaded with valve body 1 in the bottom of valve gap 6 and the lower end of valve gap 6 has and is enclosed within described raised section 52
On groove 61, stage portion 51 is pressed on valve body 1 by the lower end of valve gap 6.
Guide pin bushing lower seal assembly, the projection of guide pin bushing 5 it is provided with on the guide pin bushing 5 periphery below stage portion 51 and between valve body 1
It is provided with black box on guide pin bushing between periphery and the groove 61 of valve gap 6 of section 52.As it is shown in figure 5, black box includes on guide pin bushing
Back-up ring 30 and O 31, guide pin bushing lower seal assembly includes back-up ring 32 and O 33.
Housing 7 is fixed on the upper end of valve gap 6, and upper fixed seat 9 is fixed on housing 7 upper end, valve gap 6, housing 7 and upper fixed seat
9 one inside of composition have the structure of closed cavity, and piston 8 can be located in housing 7 and by this closed cavity up and down
Upper and lower two parts in separation, valve rod 301 is movable through valve gap 6, piston 8 and upper fixed seat 9, and piston 8 is fixing with valve rod 301 even
Connect.Specifically, the upper and lower of the outer circumference surface of piston 8 is respectively equipped with the piston seal that the inner wall sealing with housing 7 coordinates
Part 21, is additionally provided with guidance tape 22 between upper and lower two piston seals 21.Use the structure of double containment, make piston 8 run more
Steadily.Piston 8 with the connected mode of valve rod 301 is: valve rod 301 the part exceeding valve gap 6 be provided with piston fix step 303 and
Piston connects screw thread 304, and piston 8 is threadedly attached in piston and connects on screw thread 304 and be fixed and clamped by locking nut 20
Fix on step 303 at piston.
Valve rod upper seal 18, the middle part of valve rod 301 and valve gap 6 it is provided with between top and the upper fixed seat 9 of valve rod 301
Between be provided with sealing member 23 in the middle part of valve rod, be provided with stem lower portion sealing member 27 between spool 302 and the guide pin bushing 5 of valve rod assembly 3.By
It is designed with sealing in upper, middle and lower part, not only guarantees that the sealing effectiveness of valve rod assembly 3 is more preferable, and make valve rod assembly 3 run
More steady.
The work process of the plunger type drilling well choke valve of the present embodiment is described as follows.
Valve opening process: by the oil-in on valve gap 6, lower part hydraulic medium being injected in housing 7 close
Closing in cavity volume, the hydraulic fluid port from upper fixed seat 9 of the hydraulic medium in the closed containing cavity of upper part is discharged, at hydraulic medium simultaneously
Effect is lower promotes piston 8 to move upward, and piston 8 drives valve rod assembly 3 to move upward so that the spool 302 of valve rod assembly 3 with
The orifice size that valve seat 2 is formed becomes big, valve opening.
Valve closing process: by the oil-in on upper fixed seat 9, hydraulic medium is injected into the upper part in housing 7
Closed containing cavity in, the hydraulic oil of the closed containing cavity of lower part hydraulic fluid port from valve gap 6 is discharged simultaneously, in the effect of hydraulic medium
Lower promotion piston 8 moves downward, and piston 8 drives valve rod assembly 3 to move downward, so that the spool 302 of valve rod assembly 3 and valve seat
The orifice size that assembly 2 is formed diminishes, valve closing.
It addition, in the present embodiment, the outer peripheral face of the bottom of valve rod assembly 3 also has a diameter from top to bottom by greatly
The conical seal (contact) face diminished, is positioned at the bottom of spool 302, and valve component 2 has join corresponding with valve rod assembly 3 conical seal (contact) face
The valve base sealing inclined-plane closed, as in figure 2 it is shown, when the valve base sealing of the valve closing conical seal (contact) face to valve rod 3 with valve component 2
When contact of incline plane coordinates, it is achieved that the sealing between valve rod 3 and valve component 2, stops medium to pass through.
In order to realize valve position, upper fixed seat 9 is provided with opening indicator device, and the upper end of valve rod 301 is upward through
Fixing seat 9 is also connected with opening indicator device.Opening indicator device includes push rod 13 and the instruction dish 14 being connected with valve rod 301.
As shown in Figure 4, instruction dish 14 is provided with indicator board 28 with a scale.The up and down motion of valve rod assembly 3 drives push rod about 13 to transport
Dynamic, the scale shown on indicator board 28 by push rod 13, can be with the aperture of locally displayed valve.Show to realize long-range aperture
Showing, the plunger type drilling well choke valve of the present embodiment also includes valve position indicator and aperture table, and valve position indicator detects
Linear displacement signal is also converted to the signal of telecommunication and is delivered to the aperture table of throttle well killing manifold by the linear displacement signal of valve rod 301
On.It is additionally provided with sensor protection cylinder 10 on upper fixed seat 9 and protects opening display device and valve position indicator.
The plunger type drilling well choke valve of the present embodiment have employed valve gap 6 and compresses the structure of guide pin bushing 5, and spool 302 is in guide pin bushing 5
Moving up and down and realize opening and closing valve, the medium that efficiently avoid High Temperature High Pressure directly impacts valve rod 301, protects
Valve rod assembly 3, extends the service life of valve.The plunger type drilling well choke valve of the present embodiment have more preferable corrosion resistance and
Erosion wear resistance, the drilling condition in High Temperature High Pressure uses more safe and reliable.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this,
All according to this utility model spirit made equivalence change or modify, all should contain protection domain of the present utility model it
In.
Claims (10)
1. a plunger type drilling well choke valve, the valve seat (2) including valve body (1), being arranged in described valve body (1), valve rod assembly
(3), valve body (1) is provided with valve gap (6) and housing (7), and described valve rod assembly (3) has valve rod (301) and is connected to described valve
The lower end of bar (301) the spool (302) coordinated with described valve seat (2), described valve rod (301) is movable through described valve gap (6)
And be connected with the piston (8) being located in described housing (7), it is characterised in that:
It is installed with guide pin bushing (5) in described valve body (1), seals between described guide pin bushing (5) with described valve body (1) and coordinate, described spool
(302) can be equipped with up and down in described guide pin bushing (5)；Described guide pin bushing (5) is pressed abd fixed on institute by described valve gap (6)
State in valve body (1).
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterised in that: outside the top of described guide pin bushing (5)
The stage portion (51) week with outwardly convex is supported on described valve body (1), and the upper end of described guide pin bushing (5) has and raises up
Raised section (52), threaded with described valve body (1) in the bottom of described valve gap (6) and the lower end of described valve gap (6) has set
Groove (61) on described raised section (52), described stage portion (51) is pressed on described valve body by the lower end of described valve gap (6)
(1) on.
A kind of plunger type drilling well choke valve the most according to claim 2, it is characterised in that: described guide pin bushing (5) is at described
It is provided with guide pin bushing lower seal assembly, the raised section of described guide pin bushing (5) on the periphery of lower section, rank portion (51) and between described valve body (1)
(52) it is provided with black box on guide pin bushing between periphery and the groove (61) of described valve gap (6).
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterised in that: the top of described valve rod (301)
And between upper fixed seat (9), between the middle part of described valve rod (301) and described valve gap (6) and described spool (302) is with described
Sealed by sealing member respectively between guide pin bushing (5) and coordinate.
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterised in that: described housing is fixed with on (7)
Upper fixed seat (9), fixed seat (9) is provided with opening indicator device, and the upper end of described valve rod (301) is upward through described
Upper fixed seat (9) is also connected with described opening indicator device.
A kind of plunger type drilling well choke valve the most according to claim 5, it is characterised in that: described opening indicator device includes
The push rod (13) being connected with described valve rod (301) and instruction dish (14).
A kind of plunger type drilling well choke valve the most according to claim 6, it is characterised in that: described instruction dish (14) is provided with
Indicator board (28) with a scale.
8. according to a kind of plunger type drilling well choke valve described in claim 6 or 7, it is characterised in that: described plunger type drilling well saves
Stream valve also includes valve position indicator and aperture table, and described valve position indicator detects the straight line position of described valve rod (301)
Described linear displacement signal is also converted to the signal of telecommunication and is delivered on the aperture table of throttle well killing manifold by shifting signal.
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterised in that: the excircle of described piston (8)
The upper and lower in face is respectively equipped with the piston seal (21) that the inner wall sealing with described housing (7) coordinates.
A kind of plunger type drilling well choke valve the most according to claim 9, it is characterised in that: described valve rod (301) is exceeding
The part of described valve gap (6) is provided with piston and fixes step (303) and piston connection screw thread (304), and described piston (8) passes through screw thread
It is connected on described piston connection screw thread (304) and is fixed on described piston by locking nut (20) fix on step (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620669968.8U CN205824216U (en) | 2016-06-30 | 2016-06-30 | Plunger type drilling well choke valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620669968.8U CN205824216U (en) | 2016-06-30 | 2016-06-30 | Plunger type drilling well choke valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205824216U true CN205824216U (en) | 2016-12-21 |
Family
ID=57566584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620669968.8U Active CN205824216U (en) | 2016-06-30 | 2016-06-30 | Plunger type drilling well choke valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205824216U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889529A (en) * | 2016-06-30 | 2016-08-24 | 纽威石油设备（苏州）有限公司 | Plunger type well drilling throttle valve |
| CN109307089A (en) * | 2018-10-22 | 2019-02-05 | 合肥通用机械研究院有限公司 | High frequency opens check-valves fastly |
| CN112963553A (en) * | 2021-02-05 | 2021-06-15 | 西安九德创一科技有限公司 | Combination valve device for intelligent flow control and cutoff of natural gas well |
-
2016
- 2016-06-30 CN CN201620669968.8U patent/CN205824216U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889529A (en) * | 2016-06-30 | 2016-08-24 | 纽威石油设备（苏州）有限公司 | Plunger type well drilling throttle valve |
| CN109307089A (en) * | 2018-10-22 | 2019-02-05 | 合肥通用机械研究院有限公司 | High frequency opens check-valves fastly |
| CN112963553A (en) * | 2021-02-05 | 2021-06-15 | 西安九德创一科技有限公司 | Combination valve device for intelligent flow control and cutoff of natural gas well |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |