CN102052479B - Composite sealing bidirectional straightway ball valve with four seats - Google Patents

Composite sealing bidirectional straightway ball valve with four seats Download PDF

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Publication number
CN102052479B
CN102052479B CN201010601986.XA CN201010601986A CN102052479B CN 102052479 B CN102052479 B CN 102052479B CN 201010601986 A CN201010601986 A CN 201010601986A CN 102052479 B CN102052479 B CN 102052479B
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China
Prior art keywords
valve
valve seat
ball valve
seats
ball
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CN201010601986.XA
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CN102052479A (en
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曾品其
谢贻林
曾和友
胡建
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CHENGDU CHENGFENG VALVE CO LTD
CHENGDU CHENGGAO VALVE CO LTD
Chengfeng Flow Tech Group
State Pipe Network Group West Pipeline Co ltd
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Individual
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Abstract

The invention relates to a composite sealing bidirectional straightway ball valve with four seats, belonging to the improvement of a ball valve structure. The straightway ball valve provided by the invention is suitable for pipelines of high sealing property requirements, poor working medium conditions and long service life requirements. The ball valve provided by the invention is characterized in that a four-valve-seat sealing structure comprising a group of inner valve seats and a group of outer valve seats is arranged on the valve seats. The ball valve provided by the invention has the sealing effect and service life of four general ball valves, thus, the ball valve has the characteristics of good sealing reliability and durability.

Description

The two-way straight-through valve of compound seal all the people present
Affiliated technical field
The present invention relates to universal machine valve technology, belong to the improvement of ball-valve structure.It is high that it is applicable to sealability requirement, and working medium condition is poor, on the pipeline that will rectificate working life.
Background technique
That before and after existing natural gas line receiving ball tube, installs blocks ball valve, normally common pipeline ball-valve.The structure of this ball valve is, at valve downstream end and downstream, a valve seat is respectively set; Spheroid is fixing ball formula; Valve seat and valve seat are bearing under the thrust of spring and are affixed to spheroid, and realize sealing under pressure medium effect.Only have a upstream valve seat can realize sealing, once this valve seat is damaged by the granule foreign in medium, will make seal failure.Even if downstream valve seat is excellent, whole valve also will be scrapped immediately, and its working life is very short.Therefore before and after natural gas line receiving ball tube of today in the urgent need to a kind of new ball valve that blocks is installed.
Summary of the invention
The object of the invention is to avoid above-mentioned deficiency of the prior art, and provide a kind of sealability high, even under the poor environment of working medium condition, the two-way straight-through valve of compound seal all the people present that its working life can be longer.
The object of the invention is to realize by following technical measures: the two-way straight-through valve of this compound seal all the people present consists predominantly of valve body, side valve body, spheroid, valve rod, valve seat supporting, spring, interior valve seat, bearing support, sliding bearing, O-ring seals, gland, land, filler.Its innovation is that the top that is positioned at valve seat is also provided with outer seat on the inner side sphere of valve seat supporting.The outside cylinder of valve seat supporting is simultaneously step-like, is respectively arranged with interior level seal ring and outer level seal ring on this step cylinder.And for cylinder diameter that interior level seal ring is installed at least will with install in the circle diameter of valve seat identical.Equally, at least identical with the circle diameter that outer seat is installed for the cylinder diameter of outer level seal ring is installed.
The present invention's beneficial effect is compared with prior art that this two-way straight-through valve passes through the improvement to valve seat, makes it be equivalent to the sealing effect of four ordinary ball valve, to being greatly improved the working life of the sealing reliability of this valve and product.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention.
Fig. 2 is the detail drawing of valve seat construction part in Fig. 1.
Work schematic diagram when Fig. 3 is first order valve base sealing of the present invention.
Work schematic diagram when Fig. 4 is the second level of the present invention valve base sealing.
Work schematic diagram when Fig. 5 is third level valve base sealing of the present invention.
Work schematic diagram when Fig. 6 is fourth stage valve base sealing of the present invention.
Figure number explanation:
1, valve body 2, interior level seal ring 3, valve seat supporting 4, outer level seal ring 5, interior valve seat 6, outer seat 7, spheroid 8, foot rest 9, outer press ring 10, inner pressure ring 11, thrust washer 12, sliding bearing 13, bearing support 14, spring 15, pin 16, O-ring seals 17, side valve body 18, safety check 19, stud 20, hexagon nut 21, grease pouring valve 22, hanger 23, valve rod 24, tie-plate 25, socket head screw 26, filler 27, gland 28, O-ring seals 29, thrust bearing 30, drain plug
Embodiment
The present invention is further described below in conjunction with drawings and Examples: the two-way straight-through valve of this compound seal all the people present is mainly comprised of valve body 1, side valve body 17, spheroid 7, valve rod 23, valve seat supporting 3, spring 14, interior valve seat 5, bearing support 13, sliding bearing 12, O-ring seals 16,28, gland 27, land 24, filler 26 etc.The outside cylinder of left and right two valve seats supporting 3 of this ball valve stepped all wherein; Inner side all becomes the spherical shape of indent.On the inner side sphere of left and right this two valve seats supporting 3, and the top that is positioned at valve seat 5 also has additional outer seat 6.On the outside cylinder of left and right these two valve seat supportings 3, be all respectively provided with respectively interior level seal ring 2 and outer level seal ring 4 simultaneously.And for being installed, the cylinder diameter of interior level seal ring 2 should be greater than the circle diameter that interior valve seat 5 is installed in each valve seat supporting 3.In same each valve seat supporting 3, for being installed, the cylinder diameter of outer level seal ring 4 should be greater than the circle diameter that outer seat 6 is installed.The other parts structure of this ball valve is identical with existing common pipeline ball-valve.
During this ball valve work, because spheroid is fixed, so can realizing separately, each valve seat seals and blocks fed sheet of a media.When level Four valve seat is all intact, first order valve seat " S 1" and " B 1" become actual seal valve seat (shown in accompanying drawing 3), now the thrust area of medium or title piston effect area are " E 1", the active force that it produces is close to spheroid by the interior valve seat on the left side, realizes sealing.After some life cycles, once first order valve seat is damaged after seal failure, second level valve seat " S 2" and " B 2" become at once actual seal valve seat (shown in accompanying drawing 4), this ball valve still can be worked on.Now the thrust area of medium or title piston effect area are " E 2", its generation active force is close to spheroid by the outer seat on the left side, realizes sealing.Again after some life cycles, once second level valve seat is also damaged after seal failure, third level valve seat " S 3" and " B 3" become at once again actual seal valve seat (shown in accompanying drawing 5), this ball valve still can be worked on.Now the thrust area of medium or title piston effect area are " E 3", the active force that it produces is just close to spheroid by the outer seat on the right, realizes sealing.Again after some life cycles, once third level valve is also damaged after seal failure, fourth stage valve seat " S 4" and " B 4" becoming at once again actual seal valve should (shown in accompanying drawing 6), and this ball valve can also be worked on.Now the thrust area of medium or title piston effect area are " E 4", the active force that it produces is just close to spheroid by the interior valve seat on the right, realizes sealing.Be equivalent to four working lifes that ordinary ball valve is total the working life of therefore visible this ball valve.
Also will particularly point out in addition, after certain previous stage valve base sealing lost efficacy, it is not completely to disappear, and normally because sealing surface somewhere has produced small penetrability scuffing, just causes the sealability of this valve seat not reach expection requirement.Therefore, even if this valve base sealing lost efficacy, but it can also play the effect of woman's sphere clearly, and impurity and particle in energy block media enter next stage valve seat.So the working life of next stage valve seat is certainly a little than the long service life of upper level valve seat.

Claims (1)

1. the two-way straight-through valve of compound seal all the people present, include valve body (1), side valve body (17), spheroid (7), valve rod (23), valve seat supporting (3), spring (14), interior valve seat (5), bearing support (13), sliding bearing (12), O-ring seals (16), (28), gland (27), land (24), filler (26), it is characterized in that on the inner side sphere of valve seat supporting (3), the top that is positioned at valve seat (5) is provided with outer seat (6), the outside cylinder of valve seat supporting (3) is step-like simultaneously, on this step cylinder, be respectively arranged with interior level seal ring (2) and outer level seal ring (4), and for being installed, the cylinder diameter of interior level seal ring (2) is greater than or equals to install the circle diameter of interior valve seat (5), the same cylinder diameter that outer level seal ring (4) is installed is also greater than or equals to install the circle diameter of outer seat (6).
CN201010601986.XA 2010-12-23 2010-12-23 Composite sealing bidirectional straightway ball valve with four seats Active CN102052479B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010601986.XA CN102052479B (en) 2010-12-23 2010-12-23 Composite sealing bidirectional straightway ball valve with four seats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010601986.XA CN102052479B (en) 2010-12-23 2010-12-23 Composite sealing bidirectional straightway ball valve with four seats

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CN102052479A CN102052479A (en) 2011-05-11
CN102052479B true CN102052479B (en) 2014-04-09

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102889395A (en) * 2012-09-29 2013-01-23 上海开维喜阀门集团有限公司 Ultralow temperature upper-installed fixed ball valve
CN103836223B (en) * 2012-11-22 2018-01-19 江苏理想阀门有限公司 A kind of soft sealing ball valve of resistance to erosion sealing surface
CN105546148A (en) * 2016-02-23 2016-05-04 江苏沃圣阀业有限公司 Two-way dual-seal structure for fully welded ball valve
US10801627B2 (en) * 2018-12-07 2020-10-13 Flowserve Management Company Valve seats, valve assemblies, and related methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2217609B3 (en) * 1973-02-15 1976-02-13 Saut Du Tarn Ste Nouvelle Fr
US4177833A (en) * 1978-07-14 1979-12-11 Acf Industries, Incorporated Valves having a pressure equalizer across dual face seals
EP0012128A1 (en) * 1978-11-13 1980-06-11 Acf Industries, Incorporated Spring assembly for floating seat ring
CN2154935Y (en) * 1992-08-05 1994-02-02 王之昌 Double sealed ball valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2217609B3 (en) * 1973-02-15 1976-02-13 Saut Du Tarn Ste Nouvelle Fr
US4177833A (en) * 1978-07-14 1979-12-11 Acf Industries, Incorporated Valves having a pressure equalizer across dual face seals
EP0012128A1 (en) * 1978-11-13 1980-06-11 Acf Industries, Incorporated Spring assembly for floating seat ring
CN2154935Y (en) * 1992-08-05 1994-02-02 王之昌 Double sealed ball valve

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Application publication date: 20110511

Assignee: CHENGDU CHENG GAO VALVE Co.,Ltd.

Assignor: Zeng Pinqi|Xie Yilin|Zeng Heyou|Hu Jian

Contract record no.: 2015510000066

Denomination of invention: Composite sealing bidirectional straightway ball valve with four seats

Granted publication date: 20140409

License type: Exclusive License

Record date: 20150610

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
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Assignee: CHENGDU CHENG GAO VALVE Co.,Ltd.

Assignor: Zeng Pinqi|Xie Yilin|Zeng Heyou|Hu Jian

Contract record no.: 2015510000066

Date of cancellation: 20180913

EC01 Cancellation of recordation of patent licensing contract
TR01 Transfer of patent right

Effective date of registration: 20181205

Address after: 610000 Industrial Road, Jinyuan Town, Dayi County, Chengdu, Sichuan

Co-patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd.

Patentee after: CHENGDU CHENG GAO VALVE Co.,Ltd.

Co-patentee after: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd.

Address before: 611330 67 Industrial Avenue, Jinyuan Town, Dayi, Chengdu, Sichuan

Co-patentee before: Xie Yilin

Patentee before: Zeng Pinqi

Co-patentee before: Zeng Heyou

Co-patentee before: Hu Jian

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200716

Address after: Dayi County, Sichuan province 610000 Chengdu Jinyuan Town Industrial Avenue

Co-patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd.

Patentee after: CHENGDU CHENG GAO VALVE Co.,Ltd.

Co-patentee after: PETROCHINA WEST PIPELINE Co.

Co-patentee after: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd.

Address before: Dayi County, Sichuan province 610000 Chengdu Jinyuan Town Industrial Avenue

Co-patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd.

Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd.

Co-patentee before: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd.

TR01 Transfer of patent right
CP03 Change of name, title or address

Address after: No. 67, Section 1, Xueshan Avenue, Dayi County, Chengdu City, Sichuan Province, 611330

Patentee after: Chengdu Chenggao Valve Co.,Ltd.

Country or region after: China

Patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd.

Patentee after: State pipe network group West Pipeline Co.,Ltd.

Patentee after: Chengfeng FLOW-TECH Group

Address before: 610000 Industrial Road, Jinyuan Town, Dayi County, Chengdu, Sichuan

Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd.

Country or region before: China

Patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd.

Patentee before: PETROCHINA WEST PIPELINE Co.

Patentee before: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd.

CP03 Change of name, title or address