CN103759051A - Sealing structure of explosion valve for nuclear power station - Google Patents
Sealing structure of explosion valve for nuclear power station Download PDFInfo
- Publication number
- CN103759051A CN103759051A CN201410026185.3A CN201410026185A CN103759051A CN 103759051 A CN103759051 A CN 103759051A CN 201410026185 A CN201410026185 A CN 201410026185A CN 103759051 A CN103759051 A CN 103759051A
- Authority
- CN
- China
- Prior art keywords
- shearing
- shear
- hole
- top cover
- cap
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
- F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve member
Abstract
The invention discloses a sealing structure of an explosion valve for a nuclear power station and belongs to the technical field of explosion valve sealing structures. A shearing cap a1 is in sealing connection with a shearing top cover a3 through a snipping connecting ring a2, the shearing top cover a3 is placed at the intersection portion of a horizontal through hole and a longitudinal through hole in a valve body, a shearing cap b and a shearing cap c are in sealing connection with a shearing top cover b through snipping connecting rings b respectively, and the shearing top cover b is placed at the intersection portion of the horizontal through hole and the longitudinal through hole in the valve body. The sealing structure has the advantages that the shearing caps are added, a traditional flow channel hole, a valve base and an opening-closing piece are integrally designed, the snipping connecting rings are designed, the fact that pipeline medium pressure can be borne during power station operation is guaranteed, when valve needs to be opened, shearing force provided by a driving device can snip the shearing caps, and media are allowed to pass.
Description
?
technical fieldthe sealing configuration of used in nuclear power station explosive valve, belongs to explosive valve sealing configuration technical field.
background techniquesafety valve is requisite equipment in nuclear plant safety emergency system, in accident, a situation arises that lower requirement is opened fast, guaranteeing the normal input of safety system, there is defect in the design of conventional security valve itself, cannot effectively alleviate and prevent design basis accident and serious accident.
summary of the inventionin view of the defect that prior art exists, the object of this invention is to provide the sealing configuration of a kind of good seal performance, safe and reliable used in nuclear power station explosive valve.
For achieving the above object, the technology used in the present invention solution is: the sealing configuration of used in nuclear power station explosive valve, comprise shearing cap, and described shearing cap is positioned at the cross through hole inside of valve body, and described sealing configuration has two kinds of forms:
1) single shear sealing configuration: shear cap a and shear top cover a by cutting off the airtight connection of connecting ring a, shear the intersection that top cover a is positioned at valve body cross through hole and longitudinal hole;
2) double-shear sealing configuration: shear cap b, shear cap c and shear top cover b by cutting off the airtight connection of connecting ring b respectively, shear the intersection of top cover position b cross through hole and longitudinal hole in valve body.
Described shearing connecting ring a and shearing connecting ring b width 0-3mm, thickness 0-4mm.
The sealing configuration of used in nuclear power station explosive valve, its beneficial effect is: this sealing configuration increases shears cap, by traditional runner hole, valve seat and open-shut device Integral design, and connecting ring is sheared in design, while guaranteeing to move in power plant, can bear pipeline pressure medium, when needs valve open, the shearing force that drive unit provides can be cut off shearing cap, allows medium to pass through.
Accompanying drawing explanation
Fig. 1 is a kind of single shear sealed structure chart of used in nuclear power station explosive valve;
Fig. 2 is a kind of double-shear sealed structure chart of used in nuclear power station explosive valve.
Fig. 1, Fig. 2 reference character are as follows: 1, shear cap a, 2, shear connecting ring a, 3, shear top cover a, 4, shear connecting ring b, 5, shear cap b, 6, shear top cover b, 7, shear cap c.
Embodiment
With reference to the accompanying drawings the structural drawing of the sealing configuration of used in nuclear power station explosive valve is described as follows below: the sealing configuration of used in nuclear power station explosive valve, comprise shearing cap, described shearing cap is positioned at the cross through hole inside of valve body, and described sealing configuration has two kinds of forms:
1) single shear sealing configuration: shear cap a1 and shear top cover a3 by cutting off the airtight connection of connecting ring a2, shear the intersection that top cover a3 is positioned at valve body cross through hole and longitudinal hole;
2) double-shear sealing configuration: shear cap b5, shear cap c7 and shear top cover b6 by cutting off the airtight connection of connecting ring b4 respectively, shear the intersection of top cover position b6 cross through hole and longitudinal hole in valve body.
Described shearing connecting ring a2 and shearing connecting ring b4 width 0-3mm, thickness 0-4mm.
Claims (2)
1. the sealing configuration of used in nuclear power station explosive valve, is characterized in that: comprise shearing cap, it is inner that described shearing cap is positioned at the cross through hole of valve body, and described sealing configuration has two kinds of forms:
Single shear sealing configuration: shear cap a and shear top cover a by cutting off the airtight connection of connecting ring a, shear the intersection that top cover a is positioned at valve body cross through hole and longitudinal hole;
Double-shear sealing configuration: shear cap b, shear cap c and shear top cover b by cutting off the airtight connection of connecting ring b respectively, shear the intersection of top cover position b cross through hole and longitudinal hole in valve body.
2. the sealing configuration of used in nuclear power station explosive valve according to claim 1, is characterized in that: described shearing connecting ring a and shearing connecting ring b width 0-3mm, thickness 0-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026185.3A CN103759051A (en) | 2014-01-21 | 2014-01-21 | Sealing structure of explosion valve for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026185.3A CN103759051A (en) | 2014-01-21 | 2014-01-21 | Sealing structure of explosion valve for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103759051A true CN103759051A (en) | 2014-04-30 |
Family
ID=50526339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410026185.3A Pending CN103759051A (en) | 2014-01-21 | 2014-01-21 | Sealing structure of explosion valve for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103759051A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021895A1 (en) * | 1979-06-07 | 1981-01-07 | Société PYROMECA | Security valve to be opened by shearing the end of a closed conduit |
| US4619284A (en) * | 1984-03-21 | 1986-10-28 | Societe Nationale Industrielle Aerospatiale | Pyrotechnic valve |
| CN201326796Y (en) * | 2008-12-25 | 2009-10-14 | 上海空间推进研究所 | Large flow electric explosion valve for inflammable medium |
| CN102691817A (en) * | 2012-05-28 | 2012-09-26 | 中船重工特种设备有限责任公司 | High-precision high-reliability safety valve |
| CN203131149U (en) * | 2013-02-01 | 2013-08-14 | 中核苏阀科技实业股份有限公司 | Quick-opening valve of single-blind-pipe structure |
| CN203230913U (en) * | 2013-02-01 | 2013-10-09 | 中核苏阀科技实业股份有限公司 | Quick-opening valve with double blind pipe structure |
| CN203963149U (en) * | 2014-01-21 | 2014-11-26 | 大连大高阀门股份有限公司 | A kind of sealing configuration of used in nuclear power station explosive valve |
-
2014
- 2014-01-21 CN CN201410026185.3A patent/CN103759051A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0021895A1 (en) * | 1979-06-07 | 1981-01-07 | Société PYROMECA | Security valve to be opened by shearing the end of a closed conduit |
| US4619284A (en) * | 1984-03-21 | 1986-10-28 | Societe Nationale Industrielle Aerospatiale | Pyrotechnic valve |
| CN201326796Y (en) * | 2008-12-25 | 2009-10-14 | 上海空间推进研究所 | Large flow electric explosion valve for inflammable medium |
| CN102691817A (en) * | 2012-05-28 | 2012-09-26 | 中船重工特种设备有限责任公司 | High-precision high-reliability safety valve |
| CN203131149U (en) * | 2013-02-01 | 2013-08-14 | 中核苏阀科技实业股份有限公司 | Quick-opening valve of single-blind-pipe structure |
| CN203230913U (en) * | 2013-02-01 | 2013-10-09 | 中核苏阀科技实业股份有限公司 | Quick-opening valve with double blind pipe structure |
| CN203963149U (en) * | 2014-01-21 | 2014-11-26 | 大连大高阀门股份有限公司 | A kind of sealing configuration of used in nuclear power station explosive valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Jian Inventor after: Meng Xiangjun Inventor after: Zhang Zhichao Inventor after: Zhou Qiangqiang Inventor before: Xiao Jian Inventor before: Meng Xiangjun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIAO JIAN MENG XIANGJUN TO: XIAO JIAN MENG XIANGJUN ZHANG ZHICHAO ZHOU QIANGQIANG |
|
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140430 |