CN209725221U - A kind of adjustable needle regulator of wellhead assembly - Google Patents
A kind of adjustable needle regulator of wellhead assembly Download PDFInfo
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- CN209725221U CN209725221U CN201920258233.XU CN201920258233U CN209725221U CN 209725221 U CN209725221 U CN 209725221U CN 201920258233 U CN201920258233 U CN 201920258233U CN 209725221 U CN209725221 U CN 209725221U
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- valve
- valve rod
- valve body
- wellhead assembly
- ring seals
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Abstract
The utility model discloses a kind of adjustable needle regulators of wellhead assembly, including valve body, valve seat, valve rod, handwheel, valve deck and tight cap, valve rod in outside valve body one end and handwheel it is affixed, valve rod is provided with the flap that can be matched with valve seat in the intracorporal one end of valve, flap fluid passage of current limliting or the entire valve of cut-off when protruding into valve seat, stuffing box is provided between valve body and valve rod, several metal spacer rings are provided between stuffing box and valve rod, airtight and watertight padding is provided between metal spacer ring described in any two, each airtight and watertight padding is provided with the arc groove that Open Side Down, each arc groove is built-in with interior O-ring seals, the open end diameter of each arc groove is respectively less than the diameter of interior O-ring seals.The utility model has the following beneficial effects: this throttle valve is between valve body and valve rod by adding Combined type valve rod pressure sealing structure so that the throttle valve can be carried out in high-pressure well mouth using.
Description
Technical field
The utility model relates to a kind of throttle valve, in particular to the adjustable needle regulator of a kind of wellhead assembly.
Background technique
With the high speed development of the national economy in China, the growth of the crude oil needed at double.The pipeline of traditional well head uses
Plate flashboard, flow resistance is big, and operational torque is big, inconvenient for operation, inefficiency.Flashboard is resistance to due to not can solve sealing ring
Compensation after the high abrasion with long-time service.Service life is extremely short, and new valve was just needed replacing less than 10 months, causes greatly
Waste, and influence and a large amount of manpower of needs to production of stopping work when replacement.
Based on the above issues, the Chinese patent of Publication No. CN108331925A discloses a kind of super-pressure well head throttling
Valve.The throttle valve includes valve body, tubular valve seat, tight cap, frustum spool, valve rod；Valve body side is valve export, and valve body is equipped with
Import of the tubular valve seat as valve, tubular valve seat are located at body base, are valve rod, the upper end of tubular valve seat above tubular valve seat
Side leads to valve export, and valve rod lower end is fixedly connected with spool, and spool uses frustum structure, frustum spool tubular valve in valve body
Seat upper direction, frustum spool fluid passage of current limliting or the entire valve of cut-off when protruding into tubular valve seat, frustum spool is upward
The aperture of fluid passage is controlled when leaving tubular valve seat different distance；Tubular valve seat is equipped with sealing ring on valve body.
But sealing only is realized by filler between the valve rod of the throttle valve and valve body, sealing effect does not adapt to
In hyperbaric environment, and then influence the reliability that valve uses.Since high-pressure well mouth throttle valve is more demanding, high pressure is born
Power (as arrived 15MPa), therefore it is now urgently to be solved for how solving sealing performance between valve rod and valve body under hyperbaric environment
Problem.
Utility model content
The purpose of the utility model is to provide a kind of adjustable needle regulator of wellhead assembly, this throttle valve by
Combined type valve rod pressure sealing structure is added between valve body and valve rod, so that the throttle valve can be made in high-pressure well mouth
With.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of wellhead assembly with can
Mode needle regulator, including valve body, valve seat, valve rod, handwheel, valve deck and tight cap, the valve rod in outside valve body one end with
Handwheel is affixed, and the valve rod is provided with the flap that can be matched with valve seat in the intracorporal one end of valve, and the flap is intracorporal in valve
Valve seat upper direction, flap fluid passage of current limliting or the entire valve of cut-off when protruding into valve seat, the valve body and valve rod it
Between be provided with Combined type valve rod pressure sealing structure, the Combined type valve rod pressure sealing structure includes stuffing box, the filler
It is provided with several metal spacer rings between case and valve rod, is provided with airtight and watertight padding between metal spacer ring described in any two, each
The airtight and watertight padding is provided with the arc groove that Open Side Down, and each arc groove is built-in with interior O-ring seals, Mei Gesuo
The open end diameter for stating arc groove is respectively less than the diameter of interior O-ring seals, and each interior O-ring seals are in one outside arc groove
End can generate linear sealing with airtight and watertight padding or metal spacer ring.
The utility model is further arranged to: the stuffing box is made of metal material.
The utility model is further arranged to: it is mutually independent that the side of the stuffing box towards valve body is provided with several
Article putting groove, each article putting groove are built-in with outer O-ring seals, the side of each outer O-ring seals with valve body pressure
Tight fit.
The utility model is further arranged to: the airtight and watertight padding and interior O-ring seals are with elastic material
Rubber is made.
The utility model is further arranged to: the valve rod is fixedly connected with closing power assisting device close to the side of handwheel.
The utility model is further arranged to: be provided in the valve body first positioning hole to install stuffing box and
To install the second location hole of valve seat, the first positioning hole and second location hole are coaxially disposed.
The utility model is further arranged to: the valve rod is provided in the intracorporal side of valve with the raised platform to prevent flying out
Rank；When valve is shown in a fully open operation down, the raised step can be abutted against with Combined type valve rod pressure sealing structure.
In conclusion the utility model has the following beneficial effects:
(1) by the way that " O-ring+airtight and watertight padding+metal spacer ring " combined sealing structure is arranged between stuffing box and valve rod, with
Sealing effect between reinforcement filler case and valve rod, to be suitable for high-pressure well mouth.Since O-ring and airtight and watertight padding are elasticity
Material is made, and elasticity can change with pressure medium and be changed.Under working condition pressure, self-tightening sealing function is made it have, is acted on
In contact surface, sealing function is played；
(2) it is made since valve body is similarly metal material, the contact surface of stuffing box and valve body is metal to metal plane
Structure is directly compressed by metal with metal, its generation face is sealed.Outer O-ring seals increase the close of its contact surface simultaneously
Seal effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the structural schematic diagram of Combined type valve rod pressure sealing structure in Fig. 1.
Appended drawing reference: 1, valve body；2, valve seat；3, valve rod；4, handwheel；5, valve deck；6, tight cap；7, flap；8, Combined valve
Rod pressure sealing structure；9, stuffing box；10, article putting groove；11, outer O-ring seals；12, metal spacer ring；13, airtight and watertight padding；14,
Arc groove；15, interior O-ring seals；16, power assisting device is closed；17, aperture regulation index device；18, first positioning hole；19, second
Location hole；20, raised step.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
As depicted in figs. 1 and 2, the adjustable needle regulator of a kind of wellhead assembly, including valve body 1, valve seat 2, valve rod 3,
The lower end passage in valve body 1 is arranged in handwheel 4, valve deck 5 and tight cap 6, the triple-valve body 1 that valve body 1 is vertically arranged, valve seat 2
It is interior.Valve rod 3 in outside valve body 1 one end and handwheel 4 it is affixed, valve rod 3 is provided in one end in valve body 1 and can match with valve seat 2
Flap 7, flap 7 use cone structure.Valve seat 2 upper direction of the flap 7 in valve body 1, flap 7 are protruding into 2 time limit of valve seat
The fluid passage of entire valve is flowed or ends, flap 7 controls the aperture of fluid passage in upward out 2 different distance of valve seat.
Combined type valve rod pressure sealing structure 8 is provided between valve body 1 and valve rod 3, the Combined type valve rod pressure seal knot
Structure 8 includes stuffing box 9, and the side of stuffing box 9 towards valve body 1 is provided with several mutually independent article putting grooves 10, each glove
Slot 10 is built-in with outer O-ring seals 11, the side of each outer O-ring seals 11 with 1 compression fit of valve body.Stuffing box 9 is adopted
It is made of metal material, is made since valve body 1 is similarly metal material, the contact surface of stuffing box 9 and valve body 1 is metal to gold
Belong to planar structure, directly compressed by metal with metal, seals its generation face.Outer O-ring seals 11 increase it and connect simultaneously
The sealing effect of contacting surface.
It is provided with several metal spacer rings 12 between stuffing box 9 and valve rod 3, is provided between any two metal spacer ring 12
Airtight and watertight padding 13, each airtight and watertight padding 13 are provided with the arc groove 14 that Open Side Down, and each arc groove 14 is built-in with interior O shape
Sealing ring 15, the open end diameter of each arc groove 14 is respectively less than the diameter of interior O-ring seals 15, so that interior O-ring seals 15
It can be clamped in arc groove 14, each interior O-ring seals 15 can be with airtight and watertight padding 13 or gold in one end outside arc groove 14
Belong to spacer ring 12 and generates linear sealing.In actual operation, since airtight and watertight padding 13 and interior O-ring seals 15 are to have elastic material
The rubber of matter is made, and can be squeezed into interior O-ring seals 15 in arc groove 14 by manpower, so that interior O-ring seals 15 and arc
Slot 14 generates interference fit.By the way that " O-ring+airtight and watertight padding 13+ metal spacer ring 12 " group is arranged between stuffing box 9 and valve rod 3
Sealing structure is closed, with the sealing effect between reinforcement filler case 9 and valve rod 3, to be suitable for high-pressure well mouth.Due to O-ring with
Airtight and watertight padding 13 is that elastic material is made, and elasticity can change with pressure medium and be changed.Under working condition pressure, make it have
Self-tightening sealing function, acts on contact surface, plays sealing function.
Further, valve rod 3 is fixedly connected with close to the side of handwheel 4 and closes power assisting device 16.Since throttle valve is used for
High-pressure well mouth can be convenient for the rotation to valve rod 3 by closing the dual rotary action of power assisting device 16 and handwheel 4, and then controls
Flap 7 processed protrudes into the displacement of valve seat 2.
Further, in being additionally provided with aperture regulation index device 17 on the side outside valve body 1, which refers to valve rod 3
Show that device can identify the displacement of valve rod 3, and then convenient for judging that flap 7 protrudes into the displacement of valve seat 2.
Further, first positioning hole 18 to install stuffing box 9 is provided in valve body 1 and to install valve seat 2
Second location hole 19, first positioning hole 18 and second location hole 19 are coaxially disposed, to ensure first positioning hole 18 and second
Location hole 19 is coaxial with valve rod 3.
Further, valve rod 3 is provided in the side in valve body 1 with the raised step 20 to prevent flying out；When valve is in
Under full-gear, which can abut against with Combined type valve rod pressure sealing structure 8；Meanwhile the raised step 20 can
It avoids in valve in the biggish situation of pressure, valve rod 3 will not fly out bearing area because of pressure medium.
Claims (7)
1. a kind of adjustable needle regulator of wellhead assembly, including valve body (1), valve seat (2), valve rod (3), handwheel (4), valve deck
(5) and tight cap (6), the valve rod (3) is affixed in the outer one end of valve body (1) and handwheel (4), and the valve rod (3) is in valve body (1)
Interior one end is provided with the flap (7) that can be matched with valve seat (2), and the flap (7) is above the valve seat (2) in valve body (1)
Movement, the flap (7) fluid passage of current limliting or the entire valve of cut-off when protruding into valve seat (2), it is characterized in that: the valve body
(1) it is provided between valve rod (3) Combined type valve rod pressure sealing structure (8), the Combined type valve rod pressure sealing structure (8)
Including stuffing box (9), it is provided with several metal spacer rings (12) between the stuffing box (9) and valve rod (3), described in any two
It is provided between metal spacer ring (12) airtight and watertight padding (13), each airtight and watertight padding (13) is provided with the arc that Open Side Down
Slot (14), each arc groove (14) are built-in with interior O-ring seals (15), and the open end of each arc groove (14) is straight
Diameter is respectively less than the diameter of interior O-ring seals (15), the one end of each interior O-ring seals (15) in arc groove (14) outside
Linear sealing is generated with airtight and watertight padding (13) or metal spacer ring (12).
2. the adjustable needle regulator of a kind of wellhead assembly according to claim 1, it is characterized in that: the stuffing box
(9) it is made of metal material.
3. the adjustable needle regulator of a kind of wellhead assembly according to claim 2, it is characterized in that: the stuffing box
(9) side of valve body (1) is provided with several mutually independent article putting grooves (10), each article putting groove (10) is built-in
Have outer O-ring seals (11), the side of each outer O-ring seals (11) with valve body (1) compression fit.
4. the adjustable needle regulator of a kind of wellhead assembly according to claim 1, it is characterized in that: the airtight and watertight padding
(13) and interior O-ring seals (15) are that the rubber with elastic material is made.
5. the adjustable needle regulator of a kind of wellhead assembly according to claim 1, it is characterized in that: the valve rod (3)
It is fixedly connected with close to the side of handwheel (4) and closes power assisting device (16).
6. the adjustable needle regulator of a kind of wellhead assembly according to claim 1, it is characterized in that: the valve body (1)
It is inside provided with the first positioning hole (18) to install stuffing box (9) and the second location hole to install valve seat (2) (19),
The first positioning hole (18) and second location hole (19) are coaxially disposed.
7. the adjustable needle regulator of a kind of wellhead assembly according to claim 1, it is characterized in that: the valve rod (3)
It is provided in the side in valve body (1) with the raised step (20) to prevent flying out；When valve is shown in a fully open operation down, the protrusion
Step (20) can be abutted against with Combined type valve rod pressure sealing structure (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258233.XU CN209725221U (en) | 2019-02-28 | 2019-02-28 | A kind of adjustable needle regulator of wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258233.XU CN209725221U (en) | 2019-02-28 | 2019-02-28 | A kind of adjustable needle regulator of wellhead assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209725221U true CN209725221U (en) | 2019-12-03 |
Family
ID=68684507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920258233.XU Active CN209725221U (en) | 2019-02-28 | 2019-02-28 | A kind of adjustable needle regulator of wellhead assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209725221U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377624A (en) * | 2020-10-16 | 2021-02-19 | 纽威石油设备（苏州）有限公司 | Needle type throttle valve suitable for high-pressure working condition |
| CN113187436A (en) * | 2021-04-15 | 2021-07-30 | 西派集团有限公司 | Needle valve of subsea production tree |
| CN113217637A (en) * | 2021-04-15 | 2021-08-06 | 西派集团有限公司 | Subsea production tree throttle valve |
-
2019
- 2019-02-28 CN CN201920258233.XU patent/CN209725221U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377624A (en) * | 2020-10-16 | 2021-02-19 | 纽威石油设备（苏州）有限公司 | Needle type throttle valve suitable for high-pressure working condition |
| CN113187436A (en) * | 2021-04-15 | 2021-07-30 | 西派集团有限公司 | Needle valve of subsea production tree |
| CN113217637A (en) * | 2021-04-15 | 2021-08-06 | 西派集团有限公司 | Subsea production tree throttle valve |
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