CN204358193U - A kind of leading gas safety relief valve - Google Patents
A kind of leading gas safety relief valve Download PDFInfo
- Publication number
- CN204358193U CN204358193U CN201420695351.4U CN201420695351U CN204358193U CN 204358193 U CN204358193 U CN 204358193U CN 201420695351 U CN201420695351 U CN 201420695351U CN 204358193 U CN204358193 U CN 204358193U
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- valve
- main
- pilot
- valve body
- main valve
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Abstract
The utility model discloses a kind of leading gas safety relief valve, comprise main valve and pilot valve, main valve is connected by PRESSURE PIPE with pilot valve; Main valve comprises valve body of main valve, and the inner chamber of valve body of main valve is provided with valve seat, and the inner chamber of valve seat is provided with Spool assembly and main spring from top to bottom successively, and the upper end of valve seat is provided with main valve lid; Pilot valve comprises pilot valve body, and the inner chamber of pilot valve body is provided with lower valve port, small valve core, upper valve port and diaphragm from top to bottom successively, and upper valve port is provided with hook, and hook is connected with small valve core; The upper end of pilot valve body is provided with guide's valve gap, and the inner chamber of guide's valve gap is provided with Regulation spring, and Regulation spring connects regulation structure.This device can avoid the pressure medium in pipeline increase to over specified value larger time produce superpressure phenomenon, ensure safety in production.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of leading gas safety relief valve.
Background technique
Safety valve is a more special branch of valve family, and its particularity is because be different from the effect that other valve only plays switch, the more important thing is the safety playing proterctive equipment.Therefore, safety valve is mainly widely used in: the high pressure turbine by, pressure piping, pressurized container etc. of steam boiler, tank-truck for liquefied petroleum gas or liquefied petroleum gas railway tanker, oil recovery well, steam generating equipment.
The open-shut device of safety valve is in normally off by under External Force Acting, when the pressure medium in equipment or pipeline increases to over specified value, exceedes the Special valve of specified value by preventing pressure medium in pipeline or equipment to discharge medium outside system.Safety valve belongs to self-acting valve class, and be mainly used on boiler, pressure vessels and pipes, pilot pressure is no more than specified value, has run important protective action to personal safety and equipment.
The pressure medium of existing safety valve in pipeline increase to over specified value larger time, can produce superpressure phenomenon, safety valve temporarily loses protective action, can bring hidden danger to production safety.
Model utility content
The purpose of this utility model is to provide a kind of leading gas safety relief valve, can avoid the pressure medium in pipeline increase to over specified value larger time produce superpressure phenomenon, ensure safety in production.
For achieving the above object, the technological scheme that an embodiment of the present utility model takes is:
Comprise main valve and pilot valve, main valve is connected by PRESSURE PIPE with pilot valve;
Main valve comprises valve body of main valve, and the inner chamber of valve body of main valve is provided with valve seat, and the inner chamber of valve seat is provided with Spool assembly and main spring from top to bottom successively, and the upper end of valve seat is provided with main valve lid;
Pilot valve comprises pilot valve body, and the inner chamber of pilot valve body is provided with lower valve port, small valve core, upper valve port and diaphragm from top to bottom successively, and upper valve port is provided with hook, and hook is connected with small valve core; The upper end of pilot valve body is provided with guide's valve gap, and the inner chamber of guide's valve gap is provided with Regulation spring, and Regulation spring connects regulation structure;
Main valve covers and is provided with main valve lid pore, and main valve lid pore is connected with the joint be located on pilot valve body by short circuit conduit, and joint is provided with nipple orifice;
Connect the second PRESSURE PIPE in the middle part of valve body of main valve, the second PRESSURE PIPE is connected with lower valve port; And
The inlet hole of valve body of main valve lower end passes through the inner space of the first PRESSURE PIPE and pilot valve body.
Preferably, Spool assembly upper end is provided with stop screw, and main spring is fixed on stop screw.
Preferably, regulation structure comprises adjusting screw, and adjusting screw is socketed adjusting nut.
The beneficial effect that this leading gas safety relief valve produces is: be provided with pilot valve, main valve is connected by PRESSURE PIPE with pilot valve, when pressure medium in main valve increase to over specified value larger time, by pilot valve, step-down is carried out to the pressure medium in main valve, thus avoid superpressure phenomenon, ensure safety in production.
Accompanying drawing explanation
Figure 1 shows that the schematic diagram of an embodiment of a kind of leading gas safety relief valve of the present utility model.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with the utility model specific embodiment and corresponding accompanying drawing, technical solutions of the utility model are clearly and completely described.
With reference to figure 1, Figure 1 shows that the schematic diagram of an embodiment of a kind of leading gas safety relief valve of the present utility model.In the present embodiment, leading gas safety relief valve comprises main valve 100 and pilot valve 200, and main valve 100 is connected by PRESSURE PIPE with pilot valve 200;
Main valve 100 comprises valve body of main valve 101, the inner chamber of valve body of main valve 101 is provided with valve seat 109, the inner chamber of valve seat 109 is provided with Spool assembly 105 and main spring 107 from top to bottom successively, the upper end of valve seat 109 is provided with main valve lid 102, main valve lid 102 is connected on valve body of main valve 101 by main valve lid screw 103, Spool assembly 105 is socketed sleeve 104, main spring 107 is positioned at sleeve 104;
Pilot valve 200 comprises pilot valve body 201, and the inner chamber of pilot valve body 201 is provided with lower valve port 214, small valve core 213, upper valve port 212 and diaphragm 202 from top to bottom successively, and upper valve port 212 is provided with hook 211, and hook 211 is connected with small valve core 213; The upper end of pilot valve body 201 is provided with guide's valve gap 210, the inner chamber of guide's valve gap 210 is provided with Regulation spring 204, Regulation spring 204 is fixed on spring seat 203, spring seat 203 upper and lower end is provided with acorn nut 209, Regulation spring 204 connects regulation structure 208, and guide's valve gap 210 upper end is provided with end cap 205;
Main valve lid 102 is provided with main valve lid pore, and main valve lid pore is connected with the joint 302 be located on pilot valve body 201 by short circuit conduit 301, and joint 302 is provided with nipple orifice;
Connect the second PRESSURE PIPE 304, second PRESSURE PIPE 304 in the middle part of valve body of main valve 101 to be connected with lower valve port 214; And
The inlet hole 110 of valve body of main valve 101 lower end is by the inner space of the first PRESSURE PIPE 303 with pilot valve body 201, first PRESSURE PIPE 303 is connected with valve body of main valve 101 by the first pressure guiding joint 111, the first pressure guiding joint 111 is socketed the first pressure guiding joint nut 112.
Medium in equipment or pipeline enters from the inlet hole 110 of valve body of main valve 101 lower end, when pressure medium increase to over specified value larger time, by the multiple PRESSURE PIPE between main valve 100 and pilot valve 200, certain media enters pilot valve 200, thus the pressure alleviated in main valve 100 cavity, post-decompression medium flows out in air outlet hole 108.
With reference to figure 1, in an embodiment of the present utility model, Spool assembly 105 upper end is provided with stop screw 106, and main spring 107 is fixed on stop screw 106.
With reference to figure 1, in an embodiment of the present utility model, regulation structure 208 comprises adjusting screw 206, adjusting screw 206 is socketed adjusting nut 207.
Above-mentioned mode of execution is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (3)
1. a leading gas safety relief valve, is characterized in that, comprises main valve and pilot valve, and described main valve is connected by PRESSURE PIPE with pilot valve;
Described main valve comprises valve body of main valve, and the inner chamber of described valve body of main valve is provided with valve seat, and the inner chamber of described valve seat is provided with Spool assembly and main spring from top to bottom successively, and the upper end of described valve seat is provided with main valve lid;
Described pilot valve comprises pilot valve body, and the inner chamber of described pilot valve body is provided with lower valve port, small valve core and upper valve port from top to bottom successively, and described upper valve port is provided with hook, and described hook is connected with small valve core; The upper end of described pilot valve body is provided with guide's valve gap, and the inner chamber of described guide's valve gap is provided with Regulation spring, and described Regulation spring connects regulation structure;
Described main valve covers and is provided with main valve lid pore, and described main valve lid pore is connected with the joint be located on pilot valve body by short circuit conduit, and described joint is provided with nipple orifice;
Connect the second PRESSURE PIPE in the middle part of described valve body of main valve, described second PRESSURE PIPE is connected with lower valve port; And
The inlet hole of described valve body of main valve lower end passes through the inner space of the first PRESSURE PIPE and pilot valve body.
2. Decompression valves according to claim 1, is characterized in that, described Spool assembly upper end is provided with stop screw, and described main spring is fixed on stop screw.
3. Decompression valves according to claim 1 and 2, is characterized in that, described regulation structure comprises adjusting screw, and described adjusting screw is socketed adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695351.4U CN204358193U (en) | 2014-11-19 | 2014-11-19 | A kind of leading gas safety relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420695351.4U CN204358193U (en) | 2014-11-19 | 2014-11-19 | A kind of leading gas safety relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358193U true CN204358193U (en) | 2015-05-27 |
Family
ID=53259663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420695351.4U Expired - Fee Related CN204358193U (en) | 2014-11-19 | 2014-11-19 | A kind of leading gas safety relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204358193U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122543A (en) * | 2016-07-20 | 2016-11-16 | 上海宇航***工程研究所 | A kind of excessive valve of gaps formula peace |
| CN106195369A (en) * | 2016-07-20 | 2016-12-07 | 上海宇航***工程研究所 | A kind of chamber isolated peace is overflow valve and method of work |
| CN110043703A (en) * | 2019-04-29 | 2019-07-23 | 中国水利水电科学研究院 | A kind of design method of piston type guide surge reliever |
| CN110094573A (en) * | 2019-04-29 | 2019-08-06 | 中国水利水电科学研究院 | A kind of design method of diaphragm type guide surge reliever |
| EP3679282B1 (en) | 2017-09-07 | 2022-01-26 | Neoperl GmbH | Valve arrangement |
-
2014
- 2014-11-19 CN CN201420695351.4U patent/CN204358193U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122543A (en) * | 2016-07-20 | 2016-11-16 | 上海宇航***工程研究所 | A kind of excessive valve of gaps formula peace |
| CN106195369A (en) * | 2016-07-20 | 2016-12-07 | 上海宇航***工程研究所 | A kind of chamber isolated peace is overflow valve and method of work |
| CN106195369B (en) * | 2016-07-20 | 2018-07-06 | 上海宇航***工程研究所 | The excessive valve of the chamber isolated peace of one kind and method of work |
| EP3679282B1 (en) | 2017-09-07 | 2022-01-26 | Neoperl GmbH | Valve arrangement |
| CN110043703A (en) * | 2019-04-29 | 2019-07-23 | 中国水利水电科学研究院 | A kind of design method of piston type guide surge reliever |
| CN110094573A (en) * | 2019-04-29 | 2019-08-06 | 中国水利水电科学研究院 | A kind of design method of diaphragm type guide surge reliever |
| CN110043703B (en) * | 2019-04-29 | 2020-02-14 | 中国水利水电科学研究院 | Design method of piston type pilot water hammer relief valve |
| CN110094573B (en) * | 2019-04-29 | 2020-04-17 | 中国水利水电科学研究院 | Design method of diaphragm type pilot surge relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20151119 |