CN2931986Y - Outside edge welding sealing structure of connecting nuclear grade valve gate and valve body with valve cover - Google Patents

Outside edge welding sealing structure of connecting nuclear grade valve gate and valve body with valve cover Download PDF

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Publication number
CN2931986Y
CN2931986Y CN 200620091484 CN200620091484U CN2931986Y CN 2931986 Y CN2931986 Y CN 2931986Y CN 200620091484 CN200620091484 CN 200620091484 CN 200620091484 U CN200620091484 U CN 200620091484U CN 2931986 Y CN2931986 Y CN 2931986Y
Authority
CN
China
Prior art keywords
valve
sealing
outside
edge
lip
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 - Lifetime
Application number
CN 200620091484
Other languages
Chinese (zh)
Inventor
于传奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DALIAN DV VALVE Co Ltd
Original Assignee
DALIAN DV VALVE Co Ltd
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 DALIAN DV VALVE Co Ltd filed Critical DALIAN DV VALVE Co Ltd
Priority to CN 200620091484 priority Critical patent/CN2931986Y/en
Application granted granted Critical
Publication of CN2931986Y publication Critical patent/CN2931986Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model aims to solve the problem of prior sealing structure of the jointing portion of a valve body and a valve cover, which can not ensure absolutely no leakage in long term of process, and provides outside-edge sealed structure of the valve body and the valve cover. The valve body and the valve cover are respectively processed with a continuous outside-edge on the flange joint and the continuous outside-edge is welded into a sealing ring. The utility model is characterized in that, the outside-edge welded sealing ring completes the second layer sealing, which achieves long term process absolute no leakage; when unloading the valve body and the valve cover, the outside-edge sealing ring can be split up and when connected again, the outside-edge sealing ring can be welded to be a new sealing ring, the process can be repeated for three times.

Description

The nuclear grade valve valve body is connected lip weldering sealing configuration with valve gap
Technical field
The utility model is about valve sealing structure, is specifically related to the nuclear grade valve valve body and is connected lip weldering sealing configuration with valve gap.
Background technique
For guaranteeing that medium does not leak outside, normally, it is pressed between valve body and the valve gap with connecting bolt at the spiral wound gasket of flat gasket, metal ring pad or stainless steel horsestone China inks such as rubber of valve and the arrangement of valve gap joint, leather, red copper.This kind sealing means only can reach the effect of relative sealing, can not guarantee positive confinement.Can not adopt in the occasion that requires medium to allow anything but to leak outside.
Summary of the invention
The purpose of this utility model is to solve the sealing configuration of existing valve and valve gap joint, can not guarantee absolute no leakage problem in the long-time running process.Provide a kind of valve body to be connected lip weldering sealing configuration with valve gap.
The utility model adopts following technological scheme: respectively process continuous lip limit at valve body and bonnet flange joint, become seal ring at valve body with the continuous sealing in lip limit of valve gap again.
The utlity model has following advantage:
(1) lip side weld envelope seal ring is finished second layer sealing, can reach long-time running positive confinement effect.
(2) be convenient to dismantle being connected of valve body and valve gap, lip can be welded seal ring and cut, but the seal ring of sealing Cheng Xin still when connecting once more, detachable three times.
Description of drawings
Fig. 1 has valve body is connected lip weldering sealing configuration with valve gap valve sectional view
Fig. 2 is an A portion enlarged view
Fig. 3 is a B portion enlarged view
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:
A is valve body is connected lip weldering sealing configuration with valve gap amplification position, part among Fig. 1.
Respectively process continuous lip limit 5 at valve body 1 and valve gap 6 flange connections among Fig. 2, valve body 1 is connected with nut 2, nut 7 with valve gap 6 usefulness bolts 3, fastening, compress spiral wound gasket 4 after, the high-pressure medium in can sealed valve valve body 1 reaches the initial sealing effect.B portion is the sealing position of valve 1 and valve gap 6.
Spiral wound gasket 4 is evenly compressed among Fig. 3, valve body 1 is pressed against closely with valve gap 6 flange connections lip limits 5, by the valve of initial sealing through pressure testing after the assay was approved, more continuous sealing is implemented on lip limit 5 and is become seal ring 8, finish second layer sealing, reach the positive confinement effect.When needs maintenance valve internals, can earlier seal ring 8 be cut, after Awaiting Overhaul is finished, at last lip limit 5 parts sealing are again become Xinmi City's seal 8 again.Lip limit 5 width that Design and Machining goes out can guarantee that lip weldering seal ring 8 is enough to cut and sealing three times.

Claims (2)

1 one kinds of nuclear grade valve valve bodies are connected lip weldering sealing configuration with valve gap, comprise valve body (1), valve gap (6), spiral wound gasket (4), bolt (3) and nut (2), nut parts such as (7), it is characterized in that, respectively process continuous lip limit (5) at valve body (1) and valve gap (6) flange connections, become seal ring (8) at valve body (1) with the continuous sealing in the lip limit (5) of valve gap (6) again.
2 according to the described sealing configuration of claim 1, it is characterized in that, and described lip limit (5), its width guarantees that lip weldering seal ring (8) is enough to cut and sealing three times again.
CN 200620091484 2006-06-07 2006-06-07 Outside edge welding sealing structure of connecting nuclear grade valve gate and valve body with valve cover Expired - Lifetime CN2931986Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620091484 CN2931986Y (en) 2006-06-07 2006-06-07 Outside edge welding sealing structure of connecting nuclear grade valve gate and valve body with valve cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620091484 CN2931986Y (en) 2006-06-07 2006-06-07 Outside edge welding sealing structure of connecting nuclear grade valve gate and valve body with valve cover

Publications (1)

Publication Number Publication Date
CN2931986Y true CN2931986Y (en) 2007-08-08

Family

ID=38348485

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620091484 Expired - Lifetime CN2931986Y (en) 2006-06-07 2006-06-07 Outside edge welding sealing structure of connecting nuclear grade valve gate and valve body with valve cover

Country Status (1)

Country Link
CN (1) CN2931986Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606747A (en) * 2010-12-29 2012-07-25 大连大高阀门有限公司 Nuclear class I pneumatic stop valve
CN102927295A (en) * 2012-11-10 2013-02-13 无锡智能自控工程股份有限公司 Conduction oil heat tracing clamping sleeve angle valve
CN104197012A (en) * 2014-09-10 2014-12-10 苏州纽威阀门股份有限公司 Steel forging valve and sealing connecting structure applicable to steel forging valve
CN106917873A (en) * 2015-12-23 2017-07-04 罗伯特·博世有限公司 Mould component with underground

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606747A (en) * 2010-12-29 2012-07-25 大连大高阀门有限公司 Nuclear class I pneumatic stop valve
CN102927295A (en) * 2012-11-10 2013-02-13 无锡智能自控工程股份有限公司 Conduction oil heat tracing clamping sleeve angle valve
CN104197012A (en) * 2014-09-10 2014-12-10 苏州纽威阀门股份有限公司 Steel forging valve and sealing connecting structure applicable to steel forging valve
CN104197012B (en) * 2014-09-10 2017-01-18 苏州纽威阀门股份有限公司 Steel forging valve and sealing connecting structure applicable to steel forging valve
CN106917873A (en) * 2015-12-23 2017-07-04 罗伯特·博世有限公司 Mould component with underground

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CX01 Expiry of patent term

Granted publication date: 20070808

EXPY Termination of patent right or utility model