CN209294513U - A kind of stable needle-type throttle valve that throttles - Google Patents
A kind of stable needle-type throttle valve that throttles Download PDFInfo
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- CN209294513U CN209294513U CN201821989481.3U CN201821989481U CN209294513U CN 209294513 U CN209294513 U CN 209294513U CN 201821989481 U CN201821989481 U CN 201821989481U CN 209294513 U CN209294513 U CN 209294513U
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- Prior art keywords
- needle
- valve
- packing box
- actuating sleeve
- throttle valve
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Abstract
The utility model discloses a kind of stable needle-type throttle valves that throttles comprising valve body and needle, side inlet, outlet at bottom and the top opening which has valve chamber and be connected to valve chamber；Body base outlet is internally provided with valve seat；Body top opening is equipped with packing box；The upper end of the packing box is internally embedded damping ring；The lower end internal lock of the packing box has bar sealing；Actuating sleeve is cased with outside the upper end of the packing box；The actuating sleeve lower end is cased with pressure cap；The pressure cap is connect with body top open-top screw thread；The upper end of the needle is connect with driving structure；The middle upper end of the needle is flexibly connected with actuating sleeve by screw thread；The middle lower end of the needle is the sealing surface with bar sealing and damping ring cooperation；The lower end of the needle is the syringe needle cooperated with valve seat.The utility model can keep needle to stablize under high pressure workload, improve restriction effect；Have the function of vibration damping simultaneously, extends the service life of product.
Description
Technical field
The utility model relates to oil exploration equipment technical fields, and in particular to a kind of stable needle-type throttle valve that throttles.
Background technique
Needle-type throttle valve is connect on throttle pipe road, causes resistance to liquid stream by uninterrupted with control throttle valve
Generate back pressure, the equipment for flowing out borehole fluid under slave mode.It adjusts flow and needs to rotate handwheel drive needle walking, change
Fluid plays the role of throttling by the area of passage of valve seat.
Although needle-type throttle valve has the characteristics that structure is simple, easy to maintain, low in cost, there is also stability not
Enough, as the disadvantage that moving causes flow inaccurate occurs in workload variation needle；And at work, needle is in cantilever-shaped
State, the serious vibration under high velocity fluid strikes are easy to happen the case where needle is broken.These disadvantages under high pressure operating condition especially
It is prominent.
Therefore, it is badly in need of a kind of needle-type throttle valve at present, stable production flow is provided for oil well head, and improve internal junction
Structure vibration resistance prolongs the service life.
Utility model content
The purpose of the utility model is to provide a kind of stable needle-type throttle valves that throttles, can be under high pressure workload
It keeps needle to stablize, improves restriction effect；Have the function of vibration damping simultaneously, can be absorbed in the case where high load generates variation
The failure energy generated when load variation, extends the service life of product.
A kind of in order to achieve the above object, the utility model provides stable needle-type throttle valve that throttles comprising valve body and
Needle, side inlet, outlet at bottom and the top opening which has valve chamber and be connected to valve chamber；Body base outlet is internal
It is provided with for the valve seat to the downward water conservancy diversion of fluid；Body top opening is equipped with packing box；In the upper end of the packing box
The mode that portion is gap-matched is embedded in damping ring；The lower end internal lock of the packing box has bar sealing；The packing box it is upper
End is external to be cased with actuating sleeve；The actuating sleeve lower end is cased with pressure cap；The pressure cap is connect with body top open-top screw thread, and being used for will
Actuating sleeve together with packing box sealing surface compact in body top opening；The needle be mounted on the actuating sleeve, packing box,
In damping ring and the centre bore of bar sealing and extend at the valve seat；The upper end of the needle is connect with driving structure；It is described
The middle upper end of needle is flexibly connected with actuating sleeve by screw thread；The middle lower end of the needle is and bar sealing and damping ring cooperation
Sealing surface；The lower end of the needle is the syringe needle cooperated with valve seat；The needle is driven to move up and down by rotary drive structure,
And then changes the syringe needle and generate different throttle-flows from the relative position of valve seat.
The stable needle-type throttle valve of above-mentioned throttling, wherein the needle-type throttle valve further includes the lock for locking needle
Tight device；The locking device includes: latch segment, screw and set lever；The two sides of the actuating sleeve open up tapped through hole；Institute
It states and is put into latch segment in tapped through hole；The screw is threadedly coupled back spin with the set lever into tapped through hole and by the lock
Tight block resists the needle.
The stable needle-type throttle valve of above-mentioned throttling, wherein the material of the latch segment is soft copper.
The stable needle-type throttle valve of above-mentioned throttling, wherein the driving structure is handwheel or handle.
The stable needle-type throttle valve of above-mentioned throttling, wherein the material of the syringe needle is hard alloy.
The stable needle-type throttle valve of above-mentioned throttling, wherein the valve seat is connected through a screw thread with valve body.
The stable needle-type throttle valve of above-mentioned throttling, wherein the material of the damping ring is nonmetallic nylon material.
Compared with the existing technology, the utility model has the following beneficial effects:
The utility model is mounted on the damping ring between packing box and needle, reduces load pressure and impacts lower needle vibration
Generated internal sabotage and needle moving；The locking device for being mounted on actuating sleeve two sides further keeps the stabilization of needle, mentions
High restriction effect.
The utility model can keep needle to stablize under high pressure workload, improve restriction effect；Have simultaneously and subtracts
The function of vibration, the failure energy that can be generated when absorbing load variation in the case where high load generates variation, extends product
Service life.
Detailed description of the invention
Fig. 1 is that the utility model throttles the structural schematic diagram of stable needle-type throttle valve；
Fig. 2 is the partial enlargement diagram of locking device in Fig. 1.
Specific embodiment
Below in conjunction with attached drawing, by specific embodiment, the utility model will be further described, these embodiments are only used for
Illustrate the utility model, is not the limitation to scope of protection of the utility model.
The utility model provides a kind of stable needle-type throttle valve that throttles comprising valve body 1 and needle 3, the valve body 1 tool
There are valve chamber and the side inlet being connected to valve chamber 30, outlet at bottom 20 and top opening；1 outlet at bottom 20 of valve body is internally provided with
For the valve seat 2 to the downward water conservancy diversion of fluid；Optionally, the valve seat 2 is connected through a screw thread with valve body 1；1 top open part of valve body
Packing box 6 is installed；The mode being gap-matched inside the upper end of the packing box 6 is embedded in damping ring 7；Optionally, described
The material of damping ring 7 is nonmetallic nylon material.The lower end internal lock of the packing box 6 has bar to seal 5；The packing box 6
Actuating sleeve 9 is cased with outside upper end；9 lower end of actuating sleeve is cased with pressure cap 8；The pressure cap 8 connects with 1 top opening screw thread of valve body
Connect, for by actuating sleeve 9 together with packing box 6 sealing surface compact in 1 top open part of valve body；The needle 3 is mounted on described
In actuating sleeve 9, packing box 6, damping ring 7 and the centre bore of bar sealing 5 and extend at the valve seat 2；The upper end of the needle 3
It is connect with driving structure；The middle upper end of the needle 3 is flexibly connected with actuating sleeve 9 by screw thread；The middle lower end of the needle 3 is
The sealing surface cooperated with bar sealing 5 and damping ring 7；The lower end of the needle 3 is the syringe needle cooperated with valve seat 2；Optionally, described
The material of syringe needle is hard alloy；Drive the needle 3 to move up and down by rotary drive structure, so change the syringe needle with
The relative position of valve seat 2 is to generate different throttle-flows.Optionally, the driving structure is handwheel 10 or handle.
The stable needle-type throttle valve of above-mentioned throttling, wherein the needle-type throttle valve further includes the lock for locking needle 3
Tight device；The locking device includes: latch segment 13, screw 12 and set lever 11；The two sides of the actuating sleeve 9 open up screw thread
Through-hole；Latch segment 13 is put into the tapped through hole；Optionally, the material of the latch segment 13 is soft copper；The screw 12 with
The set lever 11 is threadedly coupled back spin and resists the needle 3 into tapped through hole and by the latch segment 13.
In this embodiment, as shown in Figure 1, being equipped with screw thread at outlet at bottom 20 in 1 inside of valve body, valve seat 2 is logical
It crosses and is threaded on 20 position of outlet at bottom of valve body 1, the flow media entered from side inlet 30 can be played and be led downwards
The effect of stream, for controlling the on off operating mode of throttle valve.Packing box 6 is installed in 1 top open part of valve body, bar sealing 5 passes through
Nut 4 is locked inside 6 lower end of packing box, and in the upper end of packing box 6, the mode of clearance fit is embedded in damping ring 7.9 sets of actuating sleeve
After on the packing box 6, upper pressing cap 8 is covered on the step of 9 outer rim of actuating sleeve, by 1 upper end of the bottom surface threaded hole of pressure cap 8 and valve body
Stud be linked together and screw, actuating sleeve 9 together with the sealing cone of packing box 6 be pressed in valve body 1 top opening bore
On face.
Needle 3 is mounted in the centre bore of 6 component of actuating sleeve 9 and packing box.3 lower end of needle is needle made of hard alloy
Head, the throttle-flow different from the variation generation of the relative position of valve seat 2；Lower end is matched with bar sealing 5 and damping ring 7 in needle 3
The sealing surface of conjunction, the impact energy that fluid generates 3 syringe needle of needle are buffered on damping ring 7, play another side lever sealing 5 of protection
And keep the effect of 3 monolithic stability of needle；2 upper end of valve seat is fitted together with handwheel 10, and middle upper end is stud, in actuating sleeve 9
Under the action of portion's screw thread, rotation hand wheel 10 drives needle 3 to move up and down, and changes flow of the fluid by exit.
Locking device is housed in the two sides of actuating sleeve 9 simultaneously.As shown in Fig. 2, tapped through hole is opened up in 9 two sides of actuating sleeve,
It is put into latch segment 13, screws on screw 12 and set lever 11.When throttle valve needs to adjust flow, set lever 11 is unclamped, is turned
It starts to take turns 10 adjusting flows；After the completion of adjusting, set lever 11 is screwed again after tightening screw 12, latch segment 13 is made to bite needle 3
Screw thread do not allow its random moving, since latch segment 13 uses the preferable soft copper of extensibility, when locking, will not be damaged on needle 3
Screw thread guarantees to improve the stability adjusted while regulatory function.
In conclusion the utility model provides a kind of high tension pin-type throttle valve for throttling stable, wherein the valve seat 2 is logical
It crosses on the export direction for being threaded in 1 lower part of valve body.1 top of valve body is equipped with packing box 6, needle 3, actuating sleeve 9, the packing
Equipped with bar sealing 5 and damping ring 7 inside box 6, needle 3 passes through the inner hole of bar sealing 5 and damping ring 7, and wherein damping ring 7 is using non-
Metal-nylon material has excellent damping property, is assemblied between packing box 6 and needle 3 by way of clearance fit, when
When high pressure load is impacted on needle 3, damping ring 7 plays the role of buffering, avoids vibrating damage as caused by fluid impact
Bad needle 3 or bar sealing 5, while avoiding guaranteeing the stability of flow control due to about 3 moving of needle caused by vibrating.Disk
Actuating sleeve 9 on root box 6 is equipped with internal screw thread and is connected to together with needle 3, is in addition equipped with locking dress in the two sides of actuating sleeve 9
It sets, including bolt, set lever 11, latch segment 13, after rotating flow of the adjustment needle 3 of handwheel 10 to needs, uses locking
Handle 11 is bolted on and latch segment 13, and withstanding that needle 3 ensures will not be due to moving under the impact of valve chamber internal high pressure fluid, together
When the latch segment 13 that holds out against and contact with needle 3 use soft copper material, protecting on needle 3 screw thread not to be damaged can continue to make
With.
Needle-type throttle valve provided by the utility model, its advantages include: first, being mounted on packing box 6 and needle 3
Between damping ring 7, reduce load pressure impact lower needle 3 vibrate caused by 3 moving of internal sabotage and needle；Second,
The locking device for being mounted on 9 two sides of actuating sleeve further keeps the stabilization of needle 3, improves restriction effect.
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.
Claims (7)
1. a kind of stable needle-type throttle valve that throttles, which is characterized in that including valve body and needle, which has valve chamber and and valve
Side inlet, outlet at bottom and the top opening of chamber connection；Body base outlet is internally provided with for the downward water conservancy diversion of fluid
Valve seat；Body top opening is equipped with packing box；The mode being gap-matched inside the upper end of the packing box is embedded in
Damping ring；The lower end internal lock of the packing box has bar sealing；Actuating sleeve is cased with outside the upper end of the packing box；The driving
Set lower end is cased with pressure cap；The pressure cap is connect with body top open-top screw thread, for the sealing surface by actuating sleeve together with packing box
It is pressed on body top opening；The needle is mounted in the actuating sleeve, packing box, damping ring and the centre bore of bar sealing
And it extends at the valve seat；The upper end of the needle is connect with driving structure；Middle upper end and the actuating sleeve of the needle pass through
Screw thread is flexibly connected；The middle lower end of the needle is the sealing surface with bar sealing and damping ring cooperation；The lower end of the needle is
With the syringe needle of valve seat cooperation；It drives the needle to move up and down by rotary drive structure, and then changes the syringe needle and valve seat
Relative position to generate different throttle-flows.
2. throttle stable needle-type throttle valve as described in claim 1, which is characterized in that the needle-type throttle valve further includes using
In the locking device of locking needle；The locking device includes: latch segment, screw and set lever；The two sides of the actuating sleeve
Open up tapped through hole；Latch segment is put into the tapped through hole；The screw is threadedly coupled back spin into spiral shell with the set lever
The latch segment is simultaneously resisted the needle by line through-hole.
3. throttle stable needle-type throttle valve as claimed in claim 2, which is characterized in that the material of the latch segment is soft
Copper.
4. throttle stable needle-type throttle valve as described in claim 1, which is characterized in that the driving structure is handwheel or hand
Handle.
5. throttle stable needle-type throttle valve as described in claim 1, which is characterized in that the material of the syringe needle is hard conjunction
Gold.
6. throttle stable needle-type throttle valve as described in claim 1, which is characterized in that the valve seat and valve body pass through screw thread
Connection.
7. throttle stable needle-type throttle valve as described in claim 1, which is characterized in that the material of the damping ring is non-gold
Belong to nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821989481.3U CN209294513U (en) | 2018-11-29 | 2018-11-29 | A kind of stable needle-type throttle valve that throttles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821989481.3U CN209294513U (en) | 2018-11-29 | 2018-11-29 | A kind of stable needle-type throttle valve that throttles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209294513U true CN209294513U (en) | 2019-08-23 |
Family
ID=67656616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821989481.3U Active CN209294513U (en) | 2018-11-29 | 2018-11-29 | A kind of stable needle-type throttle valve that throttles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209294513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210253A (en) * | 2018-11-29 | 2019-01-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of stable needle-type throttle valve that throttles |
-
2018
- 2018-11-29 CN CN201821989481.3U patent/CN209294513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210253A (en) * | 2018-11-29 | 2019-01-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of stable needle-type throttle valve that throttles |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230530 Granted publication date: 20190823 |
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| PP01 | Preservation of patent right |