CN203442151U - Automatic compensation sleeve double-seat valve - Google Patents

Automatic compensation sleeve double-seat valve Download PDF

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Publication number
CN203442151U
CN203442151U CN201320530171.6U CN201320530171U CN203442151U CN 203442151 U CN203442151 U CN 203442151U CN 201320530171 U CN201320530171 U CN 201320530171U CN 203442151 U CN203442151 U CN 203442151U
Authority
CN
China
Prior art keywords
valve
sleeve
spring
seat
valve seat
Prior art date
Application number
CN201320530171.6U
Other languages
Chinese (zh)
Inventor
邢忠昌
孙金宝
王平红
林峰
Original Assignee
浙江贝尔控制阀门有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 浙江贝尔控制阀门有限公司 filed Critical 浙江贝尔控制阀门有限公司
Priority to CN201320530171.6U priority Critical patent/CN203442151U/en
Application granted granted Critical
Publication of CN203442151U publication Critical patent/CN203442151U/en

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Abstract

The utility model provides an automatic compensation sleeve double-seat valve which comprises a valve body, a lower valve seat, a sleeve, a sleeve valve element, a combination valve seat, a valve cover, a valve rod and a padding combination. The combination valve seat comprises an upper valve seat, a valve seat supporting ring, a first sealing pad, a second sealing pad, a spring seat and a spring. The spring is arranged in an annular groove in the sleeve by being pre-compressed. The spring seat is arranged on the spring and connected with the spring in an abutted mode. The valve seat supporting ring is arranged on the spring seat. The first sealing pad is arranged on the contact face between the valve seat supporting ring and the spring seat. The second sealing pad is arranged on the contact face between the valve seat supporting ring and the lower valve seat. The upper valve seat is arranged on the valve seat supporting ring. The upper valve seat is matched with a sealed cone face arranged on the sleeve valve element. According to the automatic compensation sleeve double-seat valve, the leakage amount can be reduced, so that the leakage amount reaches the V class. Meanwhile, a dynamic compensation structure formed by the combination valve seat can be tightly attached by means of pressure of a spring and a medium and the service life of the valve seat is effectively prolonged.

Description

Auto-compensating sleeve double seated valve
Technical field
The utility model belongs to valve field, is specifically related to a kind of auto-compensating sleeve double seated valve.
Background technique
At present, common sleeve double seated valve generally all adopts balanced type inner parts structure, and this structure can adapt to High Pressure Difference, high temperature occasion, effectively reduces final controlling element size.But because it has two sealing surfaces, very strict to the required distance between two sealing surfaces, and actual processing and the impact of the factor such as linear expansion while using, valve is when cutting out, be difficult to guarantee that two sealing surfaces contact completely, this kind of valve leaks often very large, the highlyest can only reach III grade standard, can not meet the requirement of harsh operating mode.
Model utility content
The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of auto-compensating sleeve double seated valve; This auto-compensating sleeve double seated valve can meet the above leakage rate requirement of heavy caliber, High Pressure Difference, high temperature and V level.
The utility model is achieved by the following technical solution:
A sleeve double seated valve, comprises valve body, lower valve base, sleeve, sleeve spool valve, stack valve seat, valve gap, valve rod and filler combination, and lower valve base is arranged on valve body, and sleeve spool valve is arranged on lower valve base, coordinates with lower valve base; Sleeve is arranged on the outside of sleeve spool valve, contacts with sleeve spool valve sealing; Valve gap is arranged on valve body, and valve rod is connected with sleeve spool valve through valve gap;
It is characterized in that, described stack valve seat is arranged in the space that lower valve base, sleeve and sleeve spool valve surround; Described stack valve seat comprises upper valve base, valve seat support ring, the first sealing gasket, the second sealing gasket, spring seat and spring, and in the precompressed circular groove being arranged on sleeve of spring, spring seat is arranged on spring, with spring butt; Valve seat support ring is arranged on spring seat, is provided with the first sealing gasket on both surface of contact; On the surface of contact of valve seat support ring and lower valve base, be provided with the second sealing gasket; Upper valve base is arranged on valve seat support ring, and upper valve base coordinates with the sealing cone arranging on sleeve spool valve.
Further setting of the present utility model is, described spring is high temperature resistant spring, and described the first sealing gasket and the second sealing gasket are refractory seal pad.
Further setting of the present utility model is, on the surface of contact of described valve gap and lower valve base, is provided with gasket seal.
Auto-compensating sleeve double seated valve described in the utility model is by introducing stack valve seat structure, make a sealing surface in two sealing surfaces of sleeve spool valve be improved to dynamic compensation sealing surface, valve two all contacts completely of sealing surface when closing have been guaranteed, thereby can reduce leakage rate, make leakage rate can reach V level.The dynamic compensation structure that stack valve seat forms simultaneously can rely on the pressure of spring and medium to be close together all the time, effectively improves the working life of valve seat.
Accompanying drawing explanation
Fig. 1 is the structural drawing of auto-compensating sleeve double seated valve described in the utility model;
Fig. 2 is the enlarged view of the stack valve seat of Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, 2, the utility model provides a kind of auto-compensating sleeve double seated valve, comprise valve body 1, lower valve base 2, sleeve 3, sleeve spool valve 4, stack valve seat 5, valve gap 6, valve rod 7 and filler combination 8, lower valve base 2 is arranged on valve body 1, sleeve spool valve 4 is arranged on lower valve base 2, coordinates with lower valve base 2; Sleeve 3 is arranged on the outside of sleeve spool valve 4, contacts with sleeve spool valve 4 sealings; Valve gap 6 is arranged on valve body 1, and valve rod 7 is connected with sleeve spool valve 4 through valve gap 6; On the surface of contact of described valve gap 6 and lower valve base 2, be provided with gasket seal 9.
On sleeve spool valve 4, be provided with two sealing cones, one of them sealing cone coordinates with lower valve base 2, and another sealing cone coordinates with stack valve seat 5.
Described stack valve seat 5 is arranged in the space that lower valve base 2, sleeve 3 and sleeve spool valve 4 surround.Described stack valve seat 5 comprises upper valve base 51, valve seat support ring 52, the first sealing gasket 53, the second sealing gasket 54, spring seat 55 and spring 56, in the precompressed circular groove being arranged on sleeve 3 of spring 56, spring seat 55 is arranged on spring 56, with spring 56 elasticity butts; Valve seat support ring 52 is arranged on spring seat 55, is provided with the first sealing gasket 53 on both surface of contact; On the surface of contact of valve seat support ring 52 and lower valve base 2, be provided with the second sealing gasket 54; Upper valve base 51 is arranged on valve seat support ring 52, and upper valve base 51 coordinates with the sealing cone arranging on sleeve spool valve 4.Wherein, described spring 56 is high temperature resistant spring, and described the first sealing gasket 53 and the second sealing gasket 54 are refractory seal pad, and described upper valve base 51 is high temperature resistant valve seat.
Above-mentioned auto-compensating sleeve double seated valve, when cutting out, due to spring 56 pressure of oriented sleeve spool valve 4 sealing cone directions all the time, can be close together lower valve base 2 and sleeve spool valve 4 all the time, has guaranteed the reliability of valve working, reduces leakage rate.
It is apparent to one skilled in the art that the utility model can be changed into various ways, and such change is not thought and departed from scope of the present utility model.All so apparent modifications of the technician to described field, within being included in the scope of this claim.

Claims (3)

1. an auto-compensating sleeve double seated valve, comprise valve body (1), lower valve base (2), sleeve (3), sleeve spool valve (4), stack valve seat (5), valve gap (6), valve rod (7) and filler combination (8), lower valve base (2) is arranged on valve body (1), it is upper that sleeve spool valve (4) is arranged on lower valve base (2), coordinates with lower valve base (2); Sleeve (3) is arranged on the outside of sleeve spool valve (4), contacts with sleeve spool valve (4) sealing; It is upper that valve gap (6) is arranged on valve body (1), and valve rod (7) is connected with sleeve spool valve (4) through valve gap (6);
It is characterized in that, described stack valve seat (5) is arranged in the space that lower valve base (2), sleeve (3) and sleeve spool valve (4) surround; Described stack valve seat (5) comprises upper valve base (51), valve seat support ring (52), the first sealing gasket (53), the second sealing gasket (54), spring seat (55) and spring (56), in the precompressed circular groove being arranged on sleeve (3) of spring (56), it is upper that spring seat (55) is arranged on spring (56), with spring (56) elasticity butt; It is upper that valve seat support ring (52) is arranged on spring seat (55), is provided with the first sealing gasket (53) on both surface of contact; On the surface of contact of valve seat support ring (52) and lower valve base (2), be provided with the second sealing gasket (54); It is upper that upper valve base (51) is arranged on valve seat support ring (52), and upper valve base (51) coordinates with the upper sealing cone arranging of sleeve spool valve (4).
2. auto-compensating sleeve double seated valve according to claim 1, is characterized in that, described spring (56) is high temperature resistant spring, and described the first sealing gasket (53) and the second sealing gasket (54) are refractory seal pad.
3. auto-compensating sleeve double seated valve according to claim 1, is characterized in that, on the surface of contact of described valve gap (6) and lower valve base (2), is provided with gasket seal (9).
CN201320530171.6U 2013-08-28 2013-08-28 Automatic compensation sleeve double-seat valve CN203442151U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320530171.6U CN203442151U (en) 2013-08-28 2013-08-28 Automatic compensation sleeve double-seat valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320530171.6U CN203442151U (en) 2013-08-28 2013-08-28 Automatic compensation sleeve double-seat valve

Publications (1)

Publication Number Publication Date
CN203442151U true CN203442151U (en) 2014-02-19

Family

ID=50093208

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320530171.6U CN203442151U (en) 2013-08-28 2013-08-28 Automatic compensation sleeve double-seat valve

Country Status (1)

Country Link
CN (1) CN203442151U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105221758A (en) * 2015-11-03 2016-01-06 天津百利展发集团有限公司 A kind of double-valve-seat self sealing structure
CN106609873A (en) * 2015-10-22 2017-05-03 中核苏阀科技实业股份有限公司 Elastic hard-sealing balance type valve element
WO2018022924A1 (en) 2016-07-28 2018-02-01 Flowserve Management Company Shutoff seal for high temperature pressure balance valve and related methods
CN108662170A (en) * 2018-07-12 2018-10-16 宣达实业集团有限公司 Slurry special service valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106609873A (en) * 2015-10-22 2017-05-03 中核苏阀科技实业股份有限公司 Elastic hard-sealing balance type valve element
CN106609873B (en) * 2015-10-22 2020-01-07 中核苏阀科技实业股份有限公司 Elastic hard sealing balanced valve core
CN105221758A (en) * 2015-11-03 2016-01-06 天津百利展发集团有限公司 A kind of double-valve-seat self sealing structure
WO2018022924A1 (en) 2016-07-28 2018-02-01 Flowserve Management Company Shutoff seal for high temperature pressure balance valve and related methods
CN109563937A (en) * 2016-07-28 2019-04-02 芙罗服务管理公司 Closing sealing element and correlation technique for high temperature pressure balanced valve
EP3491275A4 (en) * 2016-07-28 2020-03-25 Flowserve Management Company Shutoff seal for high temperature pressure balance valve and related methods
CN108662170A (en) * 2018-07-12 2018-10-16 宣达实业集团有限公司 Slurry special service valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140219

Termination date: 20140828