CN104006191A - Safety valve structure with pilot arranged externally - Google Patents
Safety valve structure with pilot arranged externally Download PDFInfo
- Publication number
- CN104006191A CN104006191A CN201410204055.4A CN201410204055A CN104006191A CN 104006191 A CN104006191 A CN 104006191A CN 201410204055 A CN201410204055 A CN 201410204055A CN 104006191 A CN104006191 A CN 104006191A
- Authority
- CN
- China
- Prior art keywords
- main valve
- valve
- pilot
- guide sleeve
- valve body
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
A safety valve structure with a pilot arranged externally is formed by connecting a main valve and a pilot valve through a connection pipe. The main valve comprises a main valve body. A main valve clack assembly is arranged on a valve seat in the main valve body. The pilot valve is connected to a valve cavity of the main valve body through a first connection pipe and connected to the main valve clack assembly through a second connection pipe. The upper end of the main valve body is connected with a guide sleeve in the valve cavity in a pressing mode through a main valve deck, a piston which can move vertically in the guide sleeve and is provided with an O-shaped ring is arranged in the guide sleeve, and the middle of the piston is connected to the upper end of a main valve clack through a piston rod to form the main valve clack assembly. The safety valve structure has the advantages of being simple, casting and machining are easy, the cost is lowered, valve sealing of the main valve structure is easy, and flowing is smoother. The safety valve structure is especially suitable for the occasions of large calibers, high pressure, high requirements for the sealing property and the like.
Description
Technical field
The present invention relates to a kind of guide's external safety valve structure, be especially a kind ofly applicable to the safety valve structure that bore is large, pressure is high, sealability requires high occasion, belong to valve class technical field.
Background technique
For heavy caliber high pressure Pilot operated safety valve, existing guide's built-in safety valve, on the one hand, because guide is built-in, causes main valve body, main valve lid complex structure, and manufacture cost is high; On the other hand, because guide is built-in, main valve clack is positioned at main valve body sealing surface below, and after valve opening, main valve clack has hindered medium circulation, causes valve negotiability to decline.
Summary of the invention
The object of the invention is to overcome the deficiency of existing guide's built-in safety valve arrangement, and provide a kind of features simple structure, casting, easy processing, cost, the valve seal and the circulation that are conducive to main valve structure are more smooth and easy, and are applicable to guide's external safety valve structure that heavy caliber, high pressure, sealability require high occasion.
The object of the invention is to complete by following technical solution, it is connected to form by adapter by main valve and pilot valve, described main valve comprises a main valve body, on valve seat in main valve body, dispose a main valve clack assembly, described pilot valve by the first adapter be connected in main valve body valve pocket, by second, take over to connect described main valve clack assembly.
The upper end portion of described main valve body is crimped with a guide sleeve being placed in valve pocket by a main valve lid, in this guide sleeve, be mounted with one that can in guide sleeve, move up and down, with the piston of O type circle, the centre of piston is connected in the upper end portion of described main valve clack and is formed described main valve clack assembly by piston rod.
The top of described main valve body is connected with pilot valve by support, and this pilot valve is connected in described main valve by the second adapter and covers face and be communicated with the piston cavity in guide sleeve; Described pilot valve is connected in described main valve body bottom by the first adapter and is communicated with the valve pocket of main valve clack below.
The invention belongs to improvements over the prior art, it has features simple structure, casting, easy processing, and cost, is conducive to valve seal and the circulation feature such as more smooth and easy of main valve structure, is particularly useful for heavy caliber, high pressure, sealability and requires high occasion.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, guide's external safety valve structure of the present invention, it is connected to form by adapter by main valve 1 and pilot valve 2, described main valve 1 comprises a main valve body 11, on valve seat 12 in main valve body 11, dispose a main valve clack assembly 3, described pilot valve 2 by the first adapter 21 be connected in main valve body 11 valve pocket 13, by second, take over 22 and connect described main valve clack assembly 3.
Shown in figure, the upper end portion of described main valve body 11 is crimped with a guide sleeve 31 being placed in valve pocket by a main valve lid 14, in this guide sleeve 31, be mounted with one that can in guide sleeve, move up and down, with the piston 33 of O type circle 32, the centre of piston 33 is connected in the upper end portion of described main valve clack 35 and is formed described main valve clack assembly 3 by piston rod 34.
The top of described main valve body 11 is connected with pilot valve 2 by support 15, and this pilot valve 2 is connected in described main valve lid 14 above and is communicated with the piston cavity in guide sleeve 31 by the second adapter 22; Described pilot valve 2 is connected in described main valve body 11 bottoms by the first adapter 21 and is communicated with the valve pocket of main valve clack 35 belows.
The present invention is external by pilot valve 2, makes main valve body 11, main valve cover 14 designs simplifications; Casting, easy processing, cost; Pilot valve 2 is external, O type circle 32, piston 33, guide sleeve 31, main valve lid 14 form an airtight piston cavity, gas is taken over 22 and is connected with piston cavity by the first adapter 21, pilot valve 2, second, increase along with system media pressure, the seal pressure that main valve clack 35 obtains also will be along with rising, be that pressure medium is higher, seal more reliable; Pilot valve 2 is external, and main valve clack 35 is positioned at main valve body 11 sealing surface tops, and after main valve clack 35 is opened, this structure is utilized fluid expulsion, circulates more smooth and easy.
Claims (3)
1. guide's external safety valve structure, it is connected to form by adapter by main valve and pilot valve, it is characterized in that described main valve comprises a main valve body, on valve seat in main valve body, dispose a main valve clack assembly, described pilot valve by the first adapter be connected in main valve body valve pocket, by second, take over to connect described main valve clack assembly.
2. guide's external safety valve structure according to claim 1, the upper end portion that it is characterized in that described main valve body is crimped with a guide sleeve being placed in valve pocket by a main valve lid, in this guide sleeve, be mounted with one that can in guide sleeve, move up and down, with the piston of O type circle, the centre of piston is connected in the upper end portion of described main valve clack and is formed described main valve clack assembly by piston rod.
3. guide's external safety valve structure according to claim 2, is characterized in that the top of described main valve body is connected with pilot valve by support, and this pilot valve is connected in described main valve by the second adapter and covers face and be communicated with the piston cavity in guide sleeve; Described pilot valve is connected in described main valve body bottom by the first adapter and is communicated with the valve pocket of main valve clack below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204055.4A CN104006191A (en) | 2014-05-15 | 2014-05-15 | Safety valve structure with pilot arranged externally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204055.4A CN104006191A (en) | 2014-05-15 | 2014-05-15 | Safety valve structure with pilot arranged externally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104006191A true CN104006191A (en) | 2014-08-27 |
Family
ID=51366998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410204055.4A Pending CN104006191A (en) | 2014-05-15 | 2014-05-15 | Safety valve structure with pilot arranged externally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006191A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019713A (en) * | 1974-07-25 | 1977-04-26 | Aeg-Kanis Turbinenfabrik Gmbh | Rapid shutoff extraction check valve |
| CN87215755U (en) * | 1987-11-24 | 1988-11-02 | 大连工学院 | Multifunction-closed type pre-operation safe valve |
| CN2251655Y (en) * | 1996-01-10 | 1997-04-09 | 大连理工大学 | Diaphragm type shockproof leading low pressure safety valve |
| CN2358313Y (en) * | 1999-02-12 | 2000-01-12 | 赵军 | Adjustable guiding safety valve |
| CN2359544Y (en) * | 1999-02-02 | 2000-01-19 | 许渭清 | Micro-differntial-pressure antiseize electromagnetic valve |
| US6161571A (en) * | 1999-05-14 | 2000-12-19 | The Living Trust of Eleanor A. Taylor | Modulating relief valve |
| CN2872014Y (en) * | 2006-02-20 | 2007-02-21 | 北京航天石化技术装备工程公司 | Guiding non-flowing pop safety valve |
| CN201875217U (en) * | 2010-09-30 | 2011-06-22 | 北京航天动力研究所 | Pilot operated safety valve used under low temperature operating condition |
| CN202109045U (en) * | 2011-06-23 | 2012-01-11 | 浙江海一阀门有限公司 | Pilot operated safety valve |
| CN102620017A (en) * | 2012-03-29 | 2012-08-01 | 天正阀门有限公司 | High-pressure electromagnetic pneumatic-control decompression valve |
| CN202646808U (en) * | 2012-03-29 | 2013-01-02 | 天正阀门有限公司 | High-pressure electromagnetic air control decompression valve |
| CN203240030U (en) * | 2013-05-09 | 2013-10-16 | 浙江精嘉阀门有限公司 | Pilot-operated type safety relief valve |
| CN203892643U (en) * | 2014-05-15 | 2014-10-22 | 杭州杭氧工装泵阀有限公司 | External pilot relief valve structure |
-
2014
- 2014-05-15 CN CN201410204055.4A patent/CN104006191A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019713A (en) * | 1974-07-25 | 1977-04-26 | Aeg-Kanis Turbinenfabrik Gmbh | Rapid shutoff extraction check valve |
| CN87215755U (en) * | 1987-11-24 | 1988-11-02 | 大连工学院 | Multifunction-closed type pre-operation safe valve |
| CN2251655Y (en) * | 1996-01-10 | 1997-04-09 | 大连理工大学 | Diaphragm type shockproof leading low pressure safety valve |
| CN2359544Y (en) * | 1999-02-02 | 2000-01-19 | 许渭清 | Micro-differntial-pressure antiseize electromagnetic valve |
| CN2358313Y (en) * | 1999-02-12 | 2000-01-12 | 赵军 | Adjustable guiding safety valve |
| US6161571A (en) * | 1999-05-14 | 2000-12-19 | The Living Trust of Eleanor A. Taylor | Modulating relief valve |
| CN2872014Y (en) * | 2006-02-20 | 2007-02-21 | 北京航天石化技术装备工程公司 | Guiding non-flowing pop safety valve |
| CN201875217U (en) * | 2010-09-30 | 2011-06-22 | 北京航天动力研究所 | Pilot operated safety valve used under low temperature operating condition |
| CN202109045U (en) * | 2011-06-23 | 2012-01-11 | 浙江海一阀门有限公司 | Pilot operated safety valve |
| CN102620017A (en) * | 2012-03-29 | 2012-08-01 | 天正阀门有限公司 | High-pressure electromagnetic pneumatic-control decompression valve |
| CN202646808U (en) * | 2012-03-29 | 2013-01-02 | 天正阀门有限公司 | High-pressure electromagnetic air control decompression valve |
| CN203240030U (en) * | 2013-05-09 | 2013-10-16 | 浙江精嘉阀门有限公司 | Pilot-operated type safety relief valve |
| CN203892643U (en) * | 2014-05-15 | 2014-10-22 | 杭州杭氧工装泵阀有限公司 | External pilot relief valve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20140827 |