CN202646742U - High-pressure accumulation-proof throttling stop valve - Google Patents
High-pressure accumulation-proof throttling stop valve Download PDFInfo
- Publication number
- CN202646742U CN202646742U CN 201220337534 CN201220337534U CN202646742U CN 202646742 U CN202646742 U CN 202646742U CN 201220337534 CN201220337534 CN 201220337534 CN 201220337534 U CN201220337534 U CN 201220337534U CN 202646742 U CN202646742 U CN 202646742U
- Authority
- CN
- China
- Prior art keywords
- valve
- throttling
- ring
- seal
- buildup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
The utility model relates to a high-pressure accumulation-proof throttling stop valve which comprises a valve body, a valve core, a valve rod, a support, a transmission mechanism, a sealing piece and an installing piece. An inlet channel and an outlet channel are arranged in the valve body, a valve base is bead-welded between the inlet channel and the outlet channel, the inlet channel is arranged on the upper side of the valve base, the outlet channel is arranged on the lower side of the valve base, a throttling sleeve is arranged in a valve cavity between the upper side of the valve base and the inlet channel, a plurality of throttling holes communicated with the inlet channel are arranged on the throttling sleeve evenly, the valve core has a conical sealing face, and an annular beading is arranged on the upper side of the conical sealing face. An inlet of a valve body runner is higher, an outlet of the valve body runner is lower, valve closing moment is reduced, washing of flow on the valve core is reduced, accumulation of a medium on the sealing face is avoided, and the high-pressure accumulation-proof throttling stop valve has the advantages of being flexible and light to open and close, good in sealing performance, long in service life and the like. The throttling valve is suitable for adjusting flow and controlling opening and closing on pipelines of natural gas, liquid gas, petroleum, coal tar and the like.
Description
Technical field
The utility model relates to valve field, particularly about a kind of stop valve.The utility model is applicable to Flow-rate adjustment on rock gas, liquid gas, oil, the coal tar wet goods pipeline and opens and closes the throttle valve of control.
Background technique
The throttling stop valve of ordinary construction, adopt single taper valve throttling and sealing, the medium low in and high out, middle road flange bolt connects, and valve rod adopts the sealing of common fillers form, and its major defect is: in the valve turn off process sealing surface easily by erosion, close moment or the big or middle road of thrust flange bolt is unreliable, easily lax under the high pressure, poor sealing performance, close heavily, working life is short, and valve cavity easily forms the sulphide PH, valve is switch flexibly.
Summary of the invention
The purpose of this utility model is the shortcoming that exists for prior art, a kind of good seal performance is provided, open and close light, switch flexibly, the anti-buildup throttling stop valve of high pressure of long service life.
The technical solution of the utility model comprises valve body, spool, valve rod, support, driving mechanism, Sealing and assembling set, be shaped with inlet passage and outlet passage in the valve body, built-up welding valve seat between inlet passage and outlet passage, it mainly is the upside that inlet passage is positioned at valve seat, outlet passage is positioned at the downside of valve seat, be provided with throttle sleeve in the valve pocket between valve seat upside and inlet passage, evenly be shaped with the throttle orifice that several are communicated with inlet passage on the throttle sleeve, spool has conical seal surface, is shaped with the annulus convex shoulder at described conical seal surface upside.
In above technological scheme, middle road adopts the pressure self-sealing structure, this pressure self-sealing structure is comprised of the packing seal mechanism between movable valve gap, seal ring, snap ring and valve rod and the movable valve gap, movable valve gap is shaped with outer conical surface, seal ring is shaped with the internal conical surface that cooperatively interacts with movable valve gap outer conical surface, and the seal ring upper-end surface is fitted between valve body and the movable valve gap by snap ring.
In above technological scheme, the snap ring upper-end surface press-fits a pressure ring, and this pressure ring compresses by a nut that is connected with the support screw-thread fit and installs.
In above technological scheme, packing seal mechanism adopts the composite filling sealing configuration, and described composite filling sealing configuration is comprised of Packing seat, lower enhancing graphite packing, V-type PTFE filler, upper enhancing graphite packing.
In above technological scheme, seal ring adopts metallic material, difference pile-up welding hard alloy material between seal ring and movable valve gap and the valve body surface of contact.
In above technological scheme, the throttle orifice on the throttle sleeve adopts inverted isosceles triangular structure.
The utility model beneficial effect compared with prior art is that valve flowing channel adopts high in and low out, reduce valve closing moment, be provided with throttle sleeve in the valve pocket between inlet passage and the valve seat, spool adopts conical seal surface, be shaped with the annulus convex shoulder at the conical seal surface upside, reduce fluid to the washing away of spool, prevent the deposition of medium on sealing surface, have the flexibly advantage such as light, good seal performance, long service life of switch.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
High pressure is as shown in Figure 1 prevented the buildup throttling stop valve, comprise valve body 1, spool 2, valve rod, support, driving mechanism, Sealing and assembling set, be shaped with inlet passage and outlet passage in the valve body 1, built-up welding valve seat between inlet passage and outlet passage, inlet passage is positioned at the upside of valve seat, outlet passage is positioned at the downside of valve seat, make the fluid upper entering and lower leaving, reduce valve closing process medium to the resistance of spool, be provided with throttle sleeve 3 in the valve pocket between valve seat upside and inlet passage, evenly be shaped with the throttle orifice that several are communicated with inlet passage on the throttle sleeve 3, spool 2 has conical seal surface, reduces the deposition of medium on valve core sealed cover.Be shaped with the annulus convex shoulder at described conical seal surface upside, this annulus convex shoulder reduces valve opening and closing process medium to directly the washing away of spool 2 sealing surfaces, and improves sealing reliability, prolongs product working life.Throttle orifice adopts inverted isosceles triangular structure, and namely the drift angle of isosceles triangle is positioned near the valve seat side, improves the valve flow tuning linearity.
The road adopts the pressure self-sealing structure in the valve, this pressure self-sealing structure is by movable valve gap 4, seal ring 5, packing seal mechanism between snap ring 10 and valve rod and the movable valve gap 4 forms, movable valve gap 4 is shaped with outer conical surface, seal ring 5 is shaped with the internal conical surface that cooperatively interacts with movable valve gap 4 outer conical surface, seal ring 5 upper-end surfaces are fitted between valve body 1 and the movable valve gap 4 by snap ring 10, the thrust that pressure medium makes progress to movable valve gap 4, make the internal conical surface wedging sealing of its outer conical surface and seal ring 5, compress simultaneously the stuffing box packing between valve rod and the movable valve gap 4, reach pressure self-sealing.
Packing seal mechanism adopts the composite filling sealing configuration, and described composite filling sealing configuration is comprised of Packing seat 6, lower enhancing graphite packing 7, V-type PTFE filler 8, upper enhancing graphite packing 9.Be installed between valve rod and the movable valve gap 4 by the Gland compression.Seal ring 5 adopts metallic material, difference pile-up welding hard alloy material between seal ring 5 and movable valve gap 4 and valve body 1 surface of contact.Valve seat pile-up welding hard alloy material, spool 2 conical seal surface surface spraying Hardmetal materials improve wear-resistant, flushing resistance.
Claims (6)
1. a high pressure is prevented the buildup throttling stop valve, comprise valve body (1), spool (2), valve rod, support, driving mechanism, Sealing and assembling set, valve body is shaped with inlet passage and outlet passage in (1), built-up welding valve seat between inlet passage and outlet passage, it is characterized in that inlet passage is positioned at the upside of valve seat, outlet passage is positioned at the downside of valve seat, be provided with throttle sleeve (3) in the valve pocket between valve seat upside and inlet passage, evenly be shaped with the throttle orifice that several are communicated with inlet passage on the throttle sleeve (3), spool (2) has conical seal surface, is shaped with the annulus convex shoulder at described conical seal surface upside.
2. high pressure according to claim 1 is prevented the buildup throttling stop valve, it is characterized in that middle road adopts the pressure self-sealing structure, this pressure self-sealing structure is by movable valve gap (4), seal ring (5), packing seal mechanism between snap ring (10) and valve rod and the movable valve gap (4) forms, movable valve gap (4) is shaped with outer conical surface, seal ring (5) is shaped with the internal conical surface that cooperatively interacts with movable valve gap (4) outer conical surface, and seal ring (4) upper-end surface is fitted between valve body (1) and the movable valve gap (4) by snap ring (10).
3. the anti-buildup throttling stop valve of high pressure according to claim 1 and 2 is characterized in that snap ring (10) upper-end surface press-fits a pressure ring (11), and this pressure ring (11) compresses by a nut (12) that is connected with the support screw-thread fit and installs.
4. high pressure according to claim 2 is prevented the buildup throttling stop valve, it is characterized in that packing seal mechanism adopts the composite filling sealing configuration, described composite filling sealing configuration is comprised of Packing seat (6), lower enhancing graphite packing (7), V-type PTFE filler (8), upper enhancing graphite packing (9).
5. the anti-buildup throttling stop valve of high pressure according to claim 2 is characterized in that seal ring (5) adopts metallic material, difference pile-up welding hard alloy material between seal ring (5) and movable valve gap (4) and valve body (1) surface of contact.
6. the anti-buildup throttling stop valve of high pressure according to claim 1 and 2 is characterized in that the throttle orifice on the throttle sleeve (3) adopts inverted isosceles triangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337534 CN202646742U (en) | 2012-07-09 | 2012-07-09 | High-pressure accumulation-proof throttling stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337534 CN202646742U (en) | 2012-07-09 | 2012-07-09 | High-pressure accumulation-proof throttling stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646742U true CN202646742U (en) | 2013-01-02 |
Family
ID=47415851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337534 Expired - Fee Related CN202646742U (en) | 2012-07-09 | 2012-07-09 | High-pressure accumulation-proof throttling stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646742U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075285A (en) * | 2013-02-05 | 2013-05-01 | 李正富 | High pressure common rail fuel metering valve |
| CN103899768A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Pressure self-sealing stop valve |
| CN104989834A (en) * | 2015-07-28 | 2015-10-21 | 王庭铨 | Valve element component of drain valve and drain valve |
| CN105020401A (en) * | 2015-05-29 | 2015-11-04 | 许炎章 | Novel needle type stop valve |
| CN112032399A (en) * | 2020-08-17 | 2020-12-04 | 浙江理工大学 | Metering test and control method for internal pressure reduction flow characteristic of labyrinth disc pressure reducing valve |
-
2012
- 2012-07-09 CN CN 201220337534 patent/CN202646742U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075285A (en) * | 2013-02-05 | 2013-05-01 | 李正富 | High pressure common rail fuel metering valve |
| CN103899768A (en) * | 2014-03-05 | 2014-07-02 | 大丰市奥凯流体机械有限公司 | Pressure self-sealing stop valve |
| CN105020401A (en) * | 2015-05-29 | 2015-11-04 | 许炎章 | Novel needle type stop valve |
| CN104989834A (en) * | 2015-07-28 | 2015-10-21 | 王庭铨 | Valve element component of drain valve and drain valve |
| CN112032399A (en) * | 2020-08-17 | 2020-12-04 | 浙江理工大学 | Metering test and control method for internal pressure reduction flow characteristic of labyrinth disc pressure reducing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202646742U (en) | High-pressure accumulation-proof throttling stop valve | |
| CN110671502A (en) | Water hammer resistant stop valve | |
| CN103727254B (en) | A kind of High Temperature High Pressure self balancing modulating valve | |
| CN205244403U (en) | Two way seal control valve | |
| CN102359611A (en) | Washout-preventing soft-sealing single-seat regulating valve | |
| CN204647338U (en) | Nuclear island Y shape adds pipe arrangement High Temperature High Pressure pressure-relief type Double-clack stop valve | |
| CN203730808U (en) | High-temperature and high-pressure self-balancing control valve | |
| CN103603962B (en) | A kind of plunger-type throttle valve | |
| CN203023511U (en) | High-pressure and high-pressure-difference balanced valve | |
| CN212986187U (en) | Right-angle throttling stop valve | |
| CN202209430U (en) | Hydraulic control switch valve | |
| CN203516884U (en) | Regulating valve with high erosion resistance | |
| CN211525652U (en) | Low-inlet high-outlet plastic electromagnetic valve | |
| CN201254970Y (en) | Light and dependable oil well producing valve | |
| CN203516772U (en) | Zero-leakage regulating valve | |
| CN208295161U (en) | The hard metallic seal slurry valve of high-pressure well mouth | |
| CN203477332U (en) | Self-sealing stop valve | |
| CN217106942U (en) | Oil production well head choke valve | |
| CN201973260U (en) | Special valve for chlorine gas | |
| CN206320335U (en) | A kind of balanced three-way governing valve | |
| CN201636395U (en) | Straight-through check valve | |
| CN104048054A (en) | Four-eccentric two-way pressure butterfly valve with perfect circle sealing surface | |
| CN202176732U (en) | High-pressure flat sluice valve with diversion hole | |
| CN212986050U (en) | Sulfur-resistant throttle stop valve | |
| CN203963046U (en) | The just round sealing surface Bidirectional pressure butterfly valve of one |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20160709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |