CN103147718B - 20000psi cage type throttling valve - Google Patents
20000psi cage type throttling valve Download PDFInfo
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- CN103147718B CN103147718B CN201310098922.6A CN201310098922A CN103147718B CN 103147718 B CN103147718 B CN 103147718B CN 201310098922 A CN201310098922 A CN 201310098922A CN 103147718 B CN103147718 B CN 103147718B
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Abstract
The invention provides a kind of 20000psi cage type throttling valve, it comprises valve body, valve seat, valve rod, spool, valve gap, bearing, valve stem nut, handwheel, valve seat is arranged on the fluid passage of valve body, and the lower end of spool is stretched into and is fixed in valve seat, and stem bottom is stretched in its upper end; Bearing is arranged at the upper end of valve gap, and one end of valve stem nut is stretched out bearing and is connected with handwheel, and the other end is connected on bearing; The upper end of valve rod is stretched in valve stem nut through valve body and valve gap successively; Stem bottom is provided with the Talide neck bush with spool socket; Upper gasket, upper sealing ring, upper back-up ring, lower gasket, lower sealing ring and lower back-up ring is provided with from top to bottom successively in valve gap; Metallic packing ring and T-shaped sealing ring is also provided with successively from top to bottom between valve seat and valve body.Under the present invention can be operated in the high pressure operating mode of 20000psi, and compared to prior art, long service life of the present invention, precise control of flew, work noise be low, it is little to vibrate and valve rod head not easily damages.
Description
Technical field
The present invention relates to a kind of choke valve, especially relate to a kind of cage type throttling valve that can work under the high pressure operating mode of 20000psi.
Background technology
Cage type throttling valve is as the one of choke valve, and when being oil exploitation, in production tree, requisite a kind of valve, is generally used for the petroleum works of operating mode more complicated.But cage type throttling valve in the market, operating pressure is lower, and structure is comparatively simple, can not meet complicated working condition requirement at all.
Mainly there is following defect in the choke valve of prior art:
(1) due to operating mode, the erosion of valve rod is relatively more serious, and the application life of choke valve is shorter;
(2) very large noise can be produced during valve working;
(3) during valve working, vibration is comparatively large, and long-term vibration can cause secure component to lose efficacy, and causes danger;
(4) because valve rod head is carbide alloy, when valve closing, valve rod head directly contacts with spool, easily causes valve rod head to damage when clashing.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide a kind ofly can to work under the high pressure operating mode of 20000psi, long service life, precise control of flew, work noise are low, it is little to vibrate and the non-damageable cage type throttling valve of valve rod head.
In order to achieve the above object, the invention provides a kind of 20000psi cage type throttling valve, it comprises valve body, valve seat, valve rod, spool, valve gap, bearing, valve stem nut, handwheel, valve seat is arranged on the fluid passage of valve body, the lower end of spool is stretched into and is fixed in valve seat, and stem bottom is stretched in its upper end; Bearing is arranged at the upper end of valve gap, and one end of valve stem nut is stretched out bearing and is connected with handwheel, and the other end is connected on bearing; The upper end of valve rod is stretched in valve stem nut through valve body and valve gap successively; It is characterized in that: stem bottom is provided with the Talide neck bush with spool socket; Upper gasket, upper sealing ring, upper back-up ring, lower gasket, lower sealing ring and lower back-up ring is provided with from top to bottom successively in valve gap; Metallic packing ring and T-shaped sealing ring is also provided with successively from top to bottom between valve seat and valve body.
Preferably, the position of the carbide alloy neck bush of the corresponding described stem bottom in the upper end of described valve seat is provided with buffering locating ring.
Preferably, spool comprises epimere spool and hypomere spool, and hypomere spool is all fixed in valve seat, and the bottom of epimere spool is fixed in valve seat, and the bottom of valve rod is stretched on the top of epimere spool, and the top of epimere spool is provided with the throttle orifice distributed in the shape of a spiral.More preferably, the inner surface of described spool studs with WC cemented carbide layer.More preferably, aperture is gradually little from top to bottom for described throttle orifice.
Preferably, described valve gap upper end is also provided with gland, is provided with O type circle between the medial surface of gland and the external surface of valve stem nut, is also provided with O type circle between the lower surface of gland and the upper surface of valve gap.
Preferably, the side of described valve gap is also provided with the holding screw for locking valve rod, and described holding screw is also provided with anti-rotoplug.
Preferably, the side of described valve body is also provided with the relief hole communicated with the fluid passage in valve body, and relief hole is provided with plug.
Preferably, middle flange seal ring is provided with between described valve gap and valve body.
Preferably, the top of described screw rod is also provided with the indicating dial indicating throttling precision.
Having the following advantages of 20000psi cage type throttling valve of the present invention:
(1) valve gap and valve body are directly tightly connected, and the structure of valve inner is compacter, decreases noise to the full extent;
(2) upper sealing ring in valve gap can prevent medium from flowing in valve stem nut, produces and reveals;
(3) lower sealing ring in valve gap plays the effect of sealing and stable valve rod; Between valve seat with valve body by together with metal sealing with together with nonmetal sealing, sealing performance is better;
(4) the buffering locating ring on valve seat can be avoided because clashing, and valve rod neck bush is damaged;
(5) spool is made up of two sections, and epimere spool can accurately throttling, and hypomere spool erosive wear resistance is better, can increase the service life, and does not also need whole spool all to change when epimere spool damages.
Based on above-mentioned advantage, under 20000psi cage type throttling valve of the present invention can be operated in the high pressure operating mode of 20000psi, and compared to prior art, long service life of the present invention, precise control of flew, work noise be low, it is little to vibrate and valve rod head not easily damages.
Accompanying drawing explanation
Fig. 1 is the structural representation of 20000psi cage type throttling valve of the present invention.
Fig. 2 is spool and the valve seat construction schematic diagram of 20000psi cage type throttling valve of the present invention.
Fig. 3 is the structural representation of the valve rod of 20000psi cage type throttling valve of the present invention.
In accompanying drawing: 1, valve body; 2, valve seat; 3, metallic packing ring; 4, Talide neck bush; 5, middle flange seal ring; 6, nut; 7, stud; 8, bearing; 9, anti-rotoplug; 10, holding screw; 11, valve stem nut; 12, O type circle; 13, gland; 14, O type circle; 15, key; 16, screw; 17, handwheel; 18, indicating dial; 19, O type circle; 20, screw; 21, Upper gasket; 22, upper sealing ring; 23, valve gap; 24, upper back-up ring; 25, lower gasket; 26, lower sealing ring; 27, plug; 28, lower back-up ring; 29, valve rod; 30, spool; 301, epimere spool; 302, hypomere spool.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Refer to Fig. 1 to Fig. 3, the invention provides a kind of 20000psi cage type throttling valve, it comprises valve body 1, valve seat 2, valve rod 29, spool 30, valve gap 23, bearing 8, valve stem nut 11, handwheel 17, valve seat 2 is arranged on the fluid passage of valve body 1, the lower end of spool 30 is stretched into and is fixed in valve seat 2, and its upper end is stretched into bottom valve rod 29; Bearing 8 is arranged at the upper end of valve gap 23, and one end of valve stem nut 11 is stretched out bearing 8 and is connected with handwheel 17, and the other end is connected on bearing 8; The upper end of valve rod 29 is stretched in valve stem nut 11 through valve body 1 and valve gap 23 successively; The Talide neck bush 4 be socketed with spool 30 is provided with bottom valve rod 29; Upper gasket 21, upper sealing ring 22, upper back-up ring 24, lower gasket 25, lower sealing ring 26 and lower back-up ring 28 is provided with from top to bottom successively in valve gap 23; Metallic packing ring 3 and T-shaped sealing ring 31 is also provided with successively from top to bottom between valve seat 2 and valve body 1.
The position of the carbide alloy neck bush 4 bottom the corresponding described valve rod 29 in upper end of described valve seat 2 is provided with buffering locating ring 32.Described spool 30 comprises epimere spool 301 and hypomere spool 302, hypomere spool 302 is all fixed in valve seat 2, the bottom of epimere spool 301 is fixed in valve seat 2, and the bottom of valve rod 29 is stretched on the top of epimere spool 301, and the top of epimere spool 301 is provided with the throttle orifice 303 distributed in the shape of a spiral.The inner surface of described spool 30 studs with WC cemented carbide layer.Described throttle orifice 303 from top to bottom aperture is gradually little.
Described valve gap 23 upper end is also provided with gland 13, is provided with O type circle 14 between the medial surface of gland 13 and the external surface of valve stem nut, is also provided with O type circle 12 between the lower surface of gland 13 and the upper surface of valve gap 23.The side of described valve gap 23 is also provided with the holding screw 10 for locking valve rod 29.Described holding screw 10 is also provided with anti-rotoplug 9.
The side of described valve body 1 is also provided with the relief hole communicated with the fluid passage in valve body 1, is provided with plug 27 in hole.Middle flange seal ring 5 is provided with between described valve gap 23 and valve body 1.
The top of described screw rod 29 is also provided with the indicating dial 18 indicating throttling precision.
Operating principle of the present invention is: when valve working, and medium enters in the chamber of valve body 1 by the passage on the left side, and when valve is in fully open position, medium by the throttle orifice 303 of upper valve core section 301, can flow out from lower exit passage; When needs throttling, be with ovable valve stem 29 to be elevated by rotating handwheel 17, thus change the area of throttle orifice 303, thus reach the object of throttling; The scale of display throttling precision is carved with on the indicating dial 18 at valve rod 29 top, and on valve gap 23, holding screw 10 is housed, when rotation handwheel 17, when reaching the throttling precision of specifying by the scale observed on indicating dial 10, locking holding screw 10, prevents valve rod 29 from loosening and affecting throttling precision.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (9)
1. a 20000psi cage type throttling valve, it comprises valve body, valve seat, valve rod, spool, valve gap, bearing, valve stem nut, handwheel, valve seat is arranged on the fluid passage of valve body, and the lower end of spool is stretched into and is fixed in valve seat, and stem bottom is stretched in its upper end; Bearing is arranged at the upper end of valve gap, and one end of valve stem nut is stretched out bearing and is connected with handwheel, and the other end is connected on bearing; The upper end of valve rod is stretched in valve stem nut through valve body and valve gap successively; It is characterized in that: stem bottom is provided with the Talide neck bush with spool socket; Upper gasket, upper sealing ring, upper back-up ring, lower gasket, lower sealing ring and lower back-up ring is provided with from top to bottom successively in valve gap; Metallic packing ring and T-shaped sealing ring is also provided with successively from top to bottom between valve seat and valve body; The position of the carbide alloy neck bush of the corresponding described stem bottom in upper end of described valve seat is provided with buffering locating ring.
2. a kind of 20000psi cage type throttling valve according to claim 1, it is characterized in that: described spool comprises epimere spool and hypomere spool, hypomere spool is all fixed in valve seat, the bottom of epimere spool is fixed in valve seat, the bottom of valve rod is stretched on the top of epimere spool, and the top of epimere spool is provided with the throttle orifice distributed in the shape of a spiral.
3. a kind of 20000psi cage type throttling valve according to claim 2, it is characterized in that: more preferably, the inner surface of described spool studs with WC cemented carbide layer.
4. a kind of 20000psi cage type throttling valve according to claim 2, is characterized in that: described throttle orifice from top to bottom aperture is gradually little.
5. a kind of 20000psi cage type throttling valve according to claim 1, it is characterized in that: described valve gap upper end is also provided with gland, be provided with O type circle between the medial surface of gland and the external surface of valve stem nut, between the lower surface of gland and the upper surface of valve gap, be also provided with O type circle.
6. a kind of 20000psi cage type throttling valve according to claim 1, is characterized in that: the side of described valve gap is also provided with the holding screw for locking valve rod, described holding screw is also provided with anti-rotoplug.
7. a kind of 20000psi cage type throttling valve according to claim 1, is characterized in that: the side of described valve body is also provided with the relief hole communicated with the fluid passage in valve body, and relief hole is provided with plug.
8. a kind of 20000psi cage type throttling valve according to claim 1, is characterized in that: be provided with middle flange seal ring between described valve gap and valve body.
9. a kind of 20000psi cage type throttling valve according to claim 1, is characterized in that: the top of described screw rod is also provided with to indicate the indicating dial of throttling precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098922.6A CN103147718B (en) | 2013-03-26 | 2013-03-26 | 20000psi cage type throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098922.6A CN103147718B (en) | 2013-03-26 | 2013-03-26 | 20000psi cage type throttling valve |
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| Publication Number | Publication Date |
|---|---|
| CN103147718A CN103147718A (en) | 2013-06-12 |
| CN103147718B true CN103147718B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310098922.6A Active CN103147718B (en) | 2013-03-26 | 2013-03-26 | 20000psi cage type throttling valve |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603962B (en) * | 2013-11-27 | 2016-01-27 | 美钻石油钻采系统工程（上海）有限公司 | A kind of plunger-type throttle valve |
| CN103982481B (en) * | 2014-05-29 | 2016-03-02 | 徐州徐工液压件有限公司 | Hydraulic system and throttle valve thereof |
| JP6231509B2 (en) * | 2015-02-02 | 2017-11-15 | 株式会社鷺宮製作所 | Throttle device and refrigeration cycle |
| CN107859775A (en) * | 2017-12-13 | 2018-03-30 | 江苏威尔德钻采设备有限公司 | Cage type throttling valve |
| CN110985695B (en) * | 2019-12-31 | 2024-08-16 | 天津塘沽瓦特斯阀门有限公司 | Y-shaped flow-regulating pressure regulating valve |
| 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 |
| CN112747134A (en) * | 2021-01-13 | 2021-05-04 | 马涛 | Manual flow regulating valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230299A (en) * | 1978-07-03 | 1980-10-28 | Petroleum Designers, Inc. | Pressure balanced gate valve having selective actuator systems |
| US4289157A (en) * | 1979-09-28 | 1981-09-15 | Combustion Engineering, Inc. | Valve with heat-responsive bearing assembly providing back seat arrangement |
| CN200958618Y (en) * | 2006-09-22 | 2007-10-10 | 江苏金石油气井口科技有限公司 | Flat valve |
| CN201731084U (en) * | 2010-06-23 | 2011-02-02 | 西南石油大学 | Novel erosion-resistant cage sleeve throttle valve |
| CN102086946A (en) * | 2010-12-07 | 2011-06-08 | 杭州春江阀门有限公司 | Multifunctional dynamic flow balancing valve |
| CN201874520U (en) * | 2010-11-12 | 2011-06-22 | 盐城市阳标石油机械有限公司 | Cage type throttling valve |
| CN203130038U (en) * | 2013-03-26 | 2013-08-14 | 纽威石油设备（苏州）有限公司 | 20000 psi cage-type throttle valve |
-
2013
- 2013-03-26 CN CN201310098922.6A patent/CN103147718B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230299A (en) * | 1978-07-03 | 1980-10-28 | Petroleum Designers, Inc. | Pressure balanced gate valve having selective actuator systems |
| US4289157A (en) * | 1979-09-28 | 1981-09-15 | Combustion Engineering, Inc. | Valve with heat-responsive bearing assembly providing back seat arrangement |
| CN200958618Y (en) * | 2006-09-22 | 2007-10-10 | 江苏金石油气井口科技有限公司 | Flat valve |
| CN201731084U (en) * | 2010-06-23 | 2011-02-02 | 西南石油大学 | Novel erosion-resistant cage sleeve throttle valve |
| CN201874520U (en) * | 2010-11-12 | 2011-06-22 | 盐城市阳标石油机械有限公司 | Cage type throttling valve |
| CN102086946A (en) * | 2010-12-07 | 2011-06-08 | 杭州春江阀门有限公司 | Multifunctional dynamic flow balancing valve |
| CN203130038U (en) * | 2013-03-26 | 2013-08-14 | 纽威石油设备（苏州）有限公司 | 20000 psi cage-type throttle valve |
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| CN103147718A (en) | 2013-06-12 |
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