CN202074047U - Throttling cut-off emptying valve - Google Patents
Throttling cut-off emptying valve Download PDFInfo
- Publication number
- CN202074047U CN202074047U CN2011201566973U CN201120156697U CN202074047U CN 202074047 U CN202074047 U CN 202074047U CN 2011201566973 U CN2011201566973 U CN 2011201566973U CN 201120156697 U CN201120156697 U CN 201120156697U CN 202074047 U CN202074047 U CN 202074047U
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Abstract
The utility model relates to a throttling cut-off emptying valve, which comprises a valve body, a barrel-shaped valve sleeve, a valve clack, a valve rod, a hand wheel, a valve cover, a filler and a filler-pressing plate, wherein the sealing surface of a valve seat is the sealing surface which comprises a horizontal circular ring and a conical surface and is approximate to the shape of a cone frustum, the end surface of the valve clack opposite to the sealing surface of the valve seat is also provided with a conical end surface matched with the sealing surface of the cone frustum, two hard sealing layers are respectively arranged on the conical surfaces of the valve seat and the valve clack, and a soft sealing layer is arranged on the surface of the valve clack opposite to the annular sealing surface of the valve seat to form dual soft and hard sealing. Because the valve disclosed by the utility model has the dual soft and hard sealing, the sealing performance is greatly improved; in addition, because the bottom of the valve clack is provided with the conical surface, when the valve clack is opened, the flow direction of a medium can be changed to generate a vortex, thereby the direct scouring of a high-speed fluid for hard sealing surfaces and soft sealing surfaces is avoided, a valve-seat sealing pair is blown and swept, impurities can not adhere to the sealing surfaces, and the sealing is more reliable.
Description
Technical field
The utility model relates to a kind of antiaircraft valve, specifically is that throttling ends atmospheric valve.
Background technique
Throttling is made closed circuit device on atmospheric valve is widely used in the pipeline of oil, rock gas, coal gas, the oil refining of liquefied petroleum gas machine, airport, chemical industry, oil gas accumulating etc.Throttling generally includes valve body by atmospheric valve, valve pocket, flap, valve rod, handwheel, valve gap, filler and hold-down grid, wherein, valve pocket is arranged in the inner chamber of valve body, has the throttle orifice that several are communicated with runner in the body cavity on the sidewall of valve pocket, valve seat is fixedly installed on the valve pocket lower end, flap is slidingly matched and is positioned at valve pocket, the flap lower end is provided with the sealing surface that the valve seat that has with the throttle orifice of valve pocket below is sealed and matched mutually, valve rod one end connects flap, the other end stretches out with handwheel from valve gap and is connected, and described filler is filled in the stuffing box of valve gap and valve rod formation.But existing throttling ends atmospheric valve because structural reason, under the high pressure working state ubiquity leak easily, defectives such as noise is big when pressure reduction height and throttling during emptying, therefore be badly in need of having a kind of throttling of perfect performance to satisfy the production demand by atmospheric valve.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency that prior art exists, and provides a kind of sealability is better, noise is lower throttling by atmospheric valve.
For achieving the above object, the utility model provides following technological scheme: a kind of throttling is by atmospheric valve, comprise valve body, the tubular valve pocket, flap, valve rod, handwheel, valve gap, filler and hold-down grid, wherein, valve pocket is arranged in the inner chamber of valve body, has the throttle orifice that several are communicated with runner in the body cavity on the sidewall of valve pocket, valve seat is fixedly installed on the valve pocket lower end, flap is slidingly matched and is positioned at the valve pocket inner chamber, the flap lower end is provided with the sealing surface that is sealed and matched mutually with lower seat, valve rod one end connects flap, the other end stretches out with handwheel from valve gap and is connected, described filler is filled in the stuffing box of valve gap and valve rod formation, it is characterized in that: the sealing surface of the approximate circle taper type that the sealing surface of described valve seat is made up of horizontal circle annular and conical surface, described flap and sealing surface of seat opposing end faces also are provided with the conical end face that the sealing surface with truncated cone matches, be respectively equipped with the hard sealing layer on the conical surface of described valve seat and flap, the face relative with valve seat annulus sealing surface of described flap is provided with soft sealing layer and forms soft, hard double seal.
Adopt technique scheme, have valve to have hard, soft double seal on the one hand, improved sealability greatly, satisfy the seal request under high pressure air, the liquid medium transport condition; On the other hand owing to form by a horizontal circle annular and a conical surface bottom the flap, the cross section is the splayed configuration oblique angle, when flap is opened, medium can change the flow direction, produce eddy current, avoid high-velocity fluid directly to wash away hard sealing surface and soft sealing surface, improved the operating conditions of hard soft pair of matter sealing surface.Because the effect of eddy current makes the valve base sealing pair obtain purging, when helping valve closing, impurity can not stick on the sealing surface, seals more reliable.
This is provided with Sound damping cover as the further improvement setting of model utility before import of described valve seat, and described Sound damping cover is a tubular, is evenly distributed with the flowing hole of perforation on the sidewall, and medium flows into valve seat from flowing hole.Because the inlet of valve seat is provided with Sound damping cover, high-velocity fluid is gone out the fluid dispersion trains of concentrating through out-of-date, can reduce noise widely during throttling.
This is provided with as further improving again of model utility, and described flap outer wall is interval with the O-ring seals that twice cooperate with the tubular valve sleeving inner wall, is provided with the storage slag chute between the described twice O-ring seals.The above-mentioned O-ring seals of storage slag chute downside when flap moves up and down in valve pocket that is arranged so that is realized automatically valve sleeving inner wall being removed the gred, and keeps flap activity steady and smooth.
This is as the further improvement setting of model utility, and the throttle orifice of described valve pocket is divided into some groups along circumference, is made up of several vertical slotted holes for every group, and the length in every group leader hole increases structure in echelon one by one along same direction.This setting makes valve at continuous opening process, and the changes in flow rate type that is in line rises.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structure sectional view of the utility model specific embodiment closed condition;
Fig. 2 is the structure sectional view of the utility model specific embodiment opening state;
Fig. 3 is the utility model embodiment valve pocket unfolded drawing.
Embodiment
As shown in Figure 1 and Figure 2, throttling still comprises valve body 1, tubular valve pocket 2, flap 3, valve rod 4, handwheel 5, valve gap 6, filler 7 and hold-down grid 8 by atmospheric valve, the inner chamber of valve body 1 divides two-part up and down, top and valve export UNICOM, bottom and valve inlet UNICOM, valve seat 9 is horizontally placed on up and down between two-part of valve body 1 inner chamber.Has the throttle orifice 10 that several are communicated with runner in valve body 1 inner chamber on the sidewall of valve pocket 2, the throttle orifice 10 of valve pocket 2 is divided into some groups along circumference, be divided into three groups in the present embodiment, form by several vertical slotted holes for every group, the length in every group leader hole increases structure in echelon one by one along same direction, as shown in Figure 3, the shape of throttle orifice 10 can be rectangle or long-round-shape.Such setting is in order to make valve at continuous opening process, and the changes in flow rate type that is in line rises, and is convenient to accurate control.Valve seat 9 is fixedly installed on valve pocket 2 lower ends, flap 3 is slidingly matched and is positioned at valve pocket 2 inner chambers, flap 3 lower ends are provided with the sealing surface that is sealed and matched mutually with lower seat 9, valve rod 4 one ends connect flap 3, the other end stretches out with handwheel 5 from valve gap 6 and is connected, described filler 7 is filled in filler 7 letters of valve gap 6 and valve rod 4 formation, the sealing surface of the approximate circle taper type that the sealing surface of described valve seat 9 is made up of horizontal circle annular and conical surface, described flap 3 and valve seat 9 sealing surface opposing end faces also are provided with the conical end face that the sealing surface with truncated cone matches, be respectively equipped with hard sealing layer 11 on the conical surface of described valve seat 9 and flap 3, the face relative with valve seat 9 annulus sealing surfaces of described flap 3 is provided with soft sealing layer 12 and forms soft, hard double seal.In order further to reduce noise, in this specific embodiment also before the import of valve seat 9, promptly under the inner chamber bottom of valve body 1 valve seat 9, Sound damping cover 13 is set, described Sound damping cover 13 is a tubular, with valve seat 9 coaxial settings, Sound damping cover 13 two ends outer walls all contact with the internal chamber wall sealing of valve body 1, are evenly distributed with the flowing hole 14 of perforation on Sound damping cover 13 sidewalls, and medium flows into valve seat 9 from flowing hole 14.
In addition, flap 3 outer walls are interval with the O-ring seals 15 that twice cooperate with tubular valve pocket 2 inwalls in this specific embodiment, be provided with storage slag chute 16 between the described twice O-ring seals 15, make that the O-ring seals 15 of storage slag chute 16 downsides was realized automatically valve pocket 2 inwalls being removed the gred when flap 3 moved up and down in valve pocket 2, storage slag chute 16, be used for storage area and strike off the slag dirt that gets off, keep flap 3 activity steady and smooth.
Claims (4)
1. a throttling is by atmospheric valve, comprise valve body, the tubular valve pocket, flap, valve rod, handwheel, valve gap, filler and hold-down grid, wherein, valve pocket is arranged in the inner chamber of valve body, has the throttle orifice that several are communicated with runner in the body cavity on the sidewall of valve pocket, valve seat is fixedly installed on the valve pocket lower end, flap is slidingly matched and is positioned at the valve pocket inner chamber, the flap lower end is provided with the sealing surface that is sealed and matched mutually with lower seat, valve rod one end connects flap, the other end stretches out with handwheel from valve gap and is connected, described filler is filled in the stuffing box of valve gap and valve rod formation, it is characterized in that: the sealing surface of the approximate circle taper type that the sealing surface of described valve seat is made up of horizontal circle annular and conical surface, described flap and sealing surface of seat opposing end faces also are provided with the conical end face that the sealing surface with truncated cone matches, be respectively equipped with the hard sealing layer on the conical surface of described valve seat and flap, the face relative with valve seat annulus sealing surface of described flap is provided with soft sealing layer and forms soft, hard double seal.
2. throttling according to claim 1 is by atmospheric valve, and it is characterized in that: before the import of described valve seat Sound damping cover is set, described Sound damping cover is a tubular, is evenly distributed with the flowing hole of perforation on the sidewall, and medium flows into valve seat from flowing hole.
3. throttling according to claim 2 is by atmospheric valve, and it is characterized in that: described flap outer wall is interval with the O-ring seals that twice cooperate with the tubular valve sleeving inner wall, is provided with the storage slag chute between the described twice O-ring seals.
According to claim 1 or 2 or 3 described throttlings by atmospheric valve, it is characterized in that: the throttle orifice of described valve pocket is divided into some groups along circumference, is made up of several vertical slotted holes for every group, the length in every group leader hole increases structure in echelon one by one along same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201566973U CN202074047U (en) | 2011-05-17 | 2011-05-17 | Throttling cut-off emptying valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201566973U CN202074047U (en) | 2011-05-17 | 2011-05-17 | Throttling cut-off emptying valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074047U true CN202074047U (en) | 2011-12-14 |
Family
ID=45112150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201566973U Expired - Lifetime CN202074047U (en) | 2011-05-17 | 2011-05-17 | Throttling cut-off emptying valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074047U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672157A (en) * | 2013-12-19 | 2014-03-26 | 吴忠中创自控阀有限公司 | Multilayer screw type multi-hole depressurization adjusting valve |
| CN104165247A (en) * | 2013-05-16 | 2014-11-26 | 费希尔控制国际公司 | Control valve trim cage having a plurality of anti-cavitation or noise abatement bars |
| CN104315169A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Rapidly positioned and mounted throttling stop emptying valve clack component |
| CN104315248A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Low noise throttle cut off emptying valve |
| CN104315170A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve clack for throttling stop emptying valve |
| CN104315165A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve sleeve for throttling stop emptying valve |
| CN104358883A (en) * | 2014-11-18 | 2015-02-18 | 自贡自高阀门有限公司 | Compression ring for improved throttling check emptying valve |
| CN104373675A (en) * | 2014-11-18 | 2015-02-25 | 自贡自高阀门有限公司 | Silent throttling stop air release valve |
| CN104405906A (en) * | 2014-11-18 | 2015-03-11 | 自贡自高阀门有限公司 | Improved valve clack component for throttling cut-off emptying valve |
| CN105402451A (en) * | 2015-10-28 | 2016-03-16 | 杭州春江阀门有限公司 | Low-noise pressure reducing valve |
| CN105715860A (en) * | 2014-12-23 | 2016-06-29 | 日立建机株式会社 | Throttle valve |
| CN107654678A (en) * | 2017-11-03 | 2018-02-02 | 无锡斯考尔自动控制设备有限公司 | A kind of high-temperature molten salt regulating valve with self-cleaning function |
| WO2018058753A1 (en) * | 2016-09-29 | 2018-04-05 | 李岑文达 | Anti-erosion structure for valve sealing face |
| CN109681650A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | High oil field water injection steam injection manual shutoff regulating valve |
-
2011
- 2011-05-17 CN CN2011201566973U patent/CN202074047U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165247A (en) * | 2013-05-16 | 2014-11-26 | 费希尔控制国际公司 | Control valve trim cage having a plurality of anti-cavitation or noise abatement bars |
| CN104165247B (en) * | 2013-05-16 | 2018-09-18 | 费希尔控制国际公司 | The control trim valve cage of bar with multiple anti-cavitation or noise reduction |
| CN103672157A (en) * | 2013-12-19 | 2014-03-26 | 吴忠中创自控阀有限公司 | Multilayer screw type multi-hole depressurization adjusting valve |
| CN103672157B (en) * | 2013-12-19 | 2016-09-28 | 吴忠中创自控阀有限公司 | Multi-deck screw type porous decompression regulating valve |
| CN104405906A (en) * | 2014-11-18 | 2015-03-11 | 自贡自高阀门有限公司 | Improved valve clack component for throttling cut-off emptying valve |
| CN104315165A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve sleeve for throttling stop emptying valve |
| CN104358883A (en) * | 2014-11-18 | 2015-02-18 | 自贡自高阀门有限公司 | Compression ring for improved throttling check emptying valve |
| CN104373675A (en) * | 2014-11-18 | 2015-02-25 | 自贡自高阀门有限公司 | Silent throttling stop air release valve |
| CN104315170A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve clack for throttling stop emptying valve |
| CN104315248A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Low noise throttle cut off emptying valve |
| CN104315169A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Rapidly positioned and mounted throttling stop emptying valve clack component |
| CN105715860A (en) * | 2014-12-23 | 2016-06-29 | 日立建机株式会社 | Throttle valve |
| CN105402451A (en) * | 2015-10-28 | 2016-03-16 | 杭州春江阀门有限公司 | Low-noise pressure reducing valve |
| WO2018058753A1 (en) * | 2016-09-29 | 2018-04-05 | 李岑文达 | Anti-erosion structure for valve sealing face |
| US10563785B2 (en) | 2016-09-29 | 2020-02-18 | Cenwenda LI | Erosion prevention structure for sealing surface of valve |
| CN107654678A (en) * | 2017-11-03 | 2018-02-02 | 无锡斯考尔自动控制设备有限公司 | A kind of high-temperature molten salt regulating valve with self-cleaning function |
| CN109681650A (en) * | 2019-01-17 | 2019-04-26 | 宣达实业集团有限公司 | High oil field water injection steam injection manual shutoff regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
|
| CX01 | Expiry of patent term |