CN2465009Y - Guiding type safety valve with discharging valve device - Google Patents
Guiding type safety valve with discharging valve device Download PDFInfo
- Publication number
- CN2465009Y CN2465009Y CN 01214114 CN01214114U CN2465009Y CN 2465009 Y CN2465009 Y CN 2465009Y CN 01214114 CN01214114 CN 01214114 CN 01214114 U CN01214114 U CN 01214114U CN 2465009 Y CN2465009 Y CN 2465009Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- blow
- little
- main valve
- 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 - Fee Related
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- Safety Valves (AREA)
Abstract
The upper end surface of a valve core 3 in a main valve body 1 of the utility model is provided with a flexible rubber cup 17; a round edge on the rubber cup 17 is pressed between the main valve body 1 and a valve cap 5; a sealing ring 18 is arranged between a valve seat 2 and the main valve body 1; a passage communicated with a guide tube 6 is arranged in the main valve body 1; the other end of the guide tube 6 is switched on in the cavity of a small valve body 16; one end of a blow-down pipe 7 is switched on in the lower cavity of the small valve body 16; the other end of the blow-down pipe 7 is switched on in the cavity of a blow-down valve body 8; a film 9 with a hole is arranged between the blow-down valve body 8 and the blow-down valve cover 10. The utility model has the advantages of simple and compact structure, convenient manufacture and installation, high opening and closing precision and low cost.
Description
The utility model relates to the Pilot operated safety valve that gas medium collection transmission ﹠ distribution gas or pipe network system are used, and especially performance is the Pilot operated safety valve that has the atmospheric valve device.
For preventing that gas medium can be worth above peace at collection transmission ﹠ distribution gas or pipe network system internal pressure, now adopts the leading type peace to control by valve.In the patent disclosure of number of patent application " 97237762.X " " a kind of leading type gas safety Decompression valves, " to exist the outlet end back pressure can not be zero, its precision is not high, deficiencies such as poor stability.
The utility model is at above-mentioned existence deficiency, and provides a kind of simple in structure, and the pilot valve outlet end to be equipped with to press be zero, precision and highly sensitive, the Pilot operated safety valve that has the atmospheric valve device that safety relief is good.
The purpose of this utility model is to realize like this, include main valve body, valve seat, spool, setting spring, valve gap, conduit, little setting spring, adjust nut, valve rod, little valve gap, small valve core, little valve body, the leather cup that is flexible is equipped with in its main valve body inner spool upper-end surface, round edge is pressed between main valve body and the valve gap on the leather cup, between valve seat and the main valve body seal ring is arranged, there is passage to communicate in the main valve body body with conduit, the conduit the other end is connected in the little valve body chamber, connect an end of blow-down pipe in the cavity of resorption of little valve body, the other end of blow-down pipe is connected in the atmospheric valve body cavity, between emptying valve body and the emptying valve gap diaphragm with holes is arranged, atmospheric valve covers end comb.
Its working principle of the utility model, gas medium is collecting transmission ﹠ distribution gas or pipe network system internal pressure below Set pressure, and main valve is a closed condition, locates the what proper functioning; If during the gas medium pressure superpressure, gas medium enters conduit from the air valve body internal channel, in little valve body chamber, make little setting spring compression, facilitate pilot valve to open, gas medium is discharged from emptying pipe A and atmospheric valve, spool rises under gas medium pressure promotes, setting spring compression, main valve open, when pressure recovery to the following safety value of Set pressure, little setting spring elongation, pilot valve is closed, and main valve is closed subsequently, the reduction proper functioning.This is by means of atmospheric valve of being made up of emptying valve body, diaphragm, emptying valve gap and emptying pipe A closely, guarantees that pilot valve outlet end pressure is zero, and does not have pressure medium in the main valve epicoele, has improved pilot valve and main valve sensitivity.By means of the leather cup structure, help sealing simultaneously, reliability is guaranteed.
The utlity model has simple and compact for structurely, fabrication and installation are convenient, open and close the precision height, and safety reliability is good, and cost is low, promotes the use of prospect.
Further specify the utility model below in conjunction with accompanying drawing.
Accompanying drawing is the utility model sectional structure schematic representation.
Among the figure: 1-main valve body, 2-valve seat, 3-spool, 4-setting spring, 5-valve gap, 6-conduit, 7-blow-down pipe, 8-emptying valve body, 9-diaphragm, 10-emptying valve gap, 11-little setting spring 12-adjustment nut 13-valve rod 14-little valve gap 15-small valve core 16-little valve body 17-leather cup 18-seal ring
As shown in drawings, valve seat 2, spool 3, leather cup 17, setting spring 4 that band seal ring 18 is arranged in the main valve body 1, main valve body 1 upper-end surface is equipped with valve gap 5, little valve body 16, little valve gap 14 are housed on the valve gap 5, little setting spring 11 is arranged in the little valve gap 14, adjust nut 12, valve rod 13, small valve core 15, main valve body 1 is communicated with little valve body 16 usefulness conduits 6, and little valve body 16 is communicated with emptying valve body 8 usefulness blow-down pipes 7, between emptying valve body 8 and the emptying valve gap 10 diaphragm 9 is arranged.
Claims (1)
1. Pilot operated safety valve that has the atmospheric valve device, include main valve body (1), valve seat (2), spool (3), setting spring (4), valve gap (5), conduit (6), little setting spring (11), adjust nut (12), valve rod (13), little valve gap (14), small valve core (15), little valve body (16), it is characterized in that main valve body (1) inner spool (3) upper-end surface is equipped with the leather cup (17) that is flexible, leather cup (17) is gone up round edge and is pressed between main valve body (1) and the valve gap (5), between valve seat (2) and the main valve body (1) seal ring (18) is arranged, there is passage to communicate in main valve body (1) body with conduit (6), conduit (6) the other end is connected in little valve body (16) chamber, connect an end of blow-down pipe (7) in the cavity of resorption of little valve body (16), the other end of blow-down pipe (7) is connected in emptying valve body (8) chamber, between emptying valve body (8) and the emptying valve gap (10) diaphragm with holes (9) is arranged, there is comb emptying valve gap (10) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214114 CN2465009Y (en) | 2001-02-09 | 2001-02-09 | Guiding type safety valve with discharging valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01214114 CN2465009Y (en) | 2001-02-09 | 2001-02-09 | Guiding type safety valve with discharging valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465009Y true CN2465009Y (en) | 2001-12-12 |
Family
ID=33632939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01214114 Expired - Fee Related CN2465009Y (en) | 2001-02-09 | 2001-02-09 | Guiding type safety valve with discharging valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465009Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672064A (en) * | 2013-12-30 | 2014-03-26 | 乐山市山鹰模具有限责任公司 | Pilot operated safety valve |
| CN103775662A (en) * | 2012-10-22 | 2014-05-07 | 费希尔久安输配设备(成都)有限公司 | Valve rod and valve plug assembly and valve with same |
| CN105416513A (en) * | 2015-11-30 | 2016-03-23 | 中国船舶重工集团公司第七一〇研究所 | Safety device for emergency recovery of underwater towed body |
| CN105757279A (en) * | 2016-05-05 | 2016-07-13 | 南京磁谷科技有限公司 | Two-stage pilot emptying valve for magnetic suspension air blower |
-
2001
- 2001-02-09 CN CN 01214114 patent/CN2465009Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775662A (en) * | 2012-10-22 | 2014-05-07 | 费希尔久安输配设备(成都)有限公司 | Valve rod and valve plug assembly and valve with same |
| CN103672064A (en) * | 2013-12-30 | 2014-03-26 | 乐山市山鹰模具有限责任公司 | Pilot operated safety valve |
| CN105416513A (en) * | 2015-11-30 | 2016-03-23 | 中国船舶重工集团公司第七一〇研究所 | Safety device for emergency recovery of underwater towed body |
| CN105757279A (en) * | 2016-05-05 | 2016-07-13 | 南京磁谷科技有限公司 | Two-stage pilot emptying valve for magnetic suspension air blower |
| CN105757279B (en) * | 2016-05-05 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of magnetic suspension air blower two-stage guide's blow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |