CN105276249A - Spring-type natural gas safety valve - Google Patents
Spring-type natural gas safety valve Download PDFInfo
- Publication number
- CN105276249A CN105276249A CN201410356570.4A CN201410356570A CN105276249A CN 105276249 A CN105276249 A CN 105276249A CN 201410356570 A CN201410356570 A CN 201410356570A CN 105276249 A CN105276249 A CN 105276249A
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- valve
- spring
- rod
- valve body
- gas safety
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Abstract
The invention relates to the technical field of valves, in particular to a spring-type natural gas safety valve. The spring-type natural gas safety valve comprises a valve body. A gas inlet and a gas outlet are formed in the valve body, and a valve cover and a safe protection cover are sequentially arranged above the valve body. The valve body is internally provided with a valve rod, a pilot-type connecting rod is arranged in the center of the valve cover, and the valve cover is provided with an upper spring base and a lower spring base. One end of the valve rod is connected with a valve plate, and the other end of the valve rod is connected with the pilot-type connecting rod. A sealing ring valve base is arranged on the valve body, and the sealing ring valve base and the valve plate form a sealing structure. The spring-type natural gas safety valve is reasonable in design and rapid in opening and closing, and the sealing performance of the spring-type natural gas safety valve is improved; and meanwhile the safety valve is convenient to manufacture and overhaul and long in service life.
Description
Technical field
The present invention relates to valve technology field, especially a kind of spring rock gas safety valve being installed on natural-gas transfer pipeline.
Background technique
Safety valve shields on the pipeline being subject to interior pressure and container, prevents superpressure, ensures safety.When pressure medium in protected system increases above specified value (i.e. the cracking pressure of safety valve), safety valve is opened automatically, discharge unit medium, prevents pressure from continuing to raise; When pressure medium is reduced to specified value (i.e. the Reseating pressure of a safety valve of safety valve), automatically close.In natural gas line course of conveying, safety valve has irreplaceable effect.Traditional safety valve structure is complicated, installs and maintenance comparatively complexity, close rapid, and sealability is bad, easily reveals.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, and provide a kind of structure simple, good sealing effect, opens spring rock gas safety valve rapidly.
The technical solution adopted for the present invention to solve the technical problems is: a kind of spring rock gas safety valve, there is valve body, described valve body is provided with suction port and air outlet, valve gap and safety guard plate is disposed with above described valve body, valve rod is provided with in valve body, bonnet central is provided with leading type connecting rod, and valve gap is provided with upper springs seat and lower springs seat, is provided with the spring be set on leading type connecting rod between upper springs seat and lower springs seat; Described valve rod one end is connected with valve plate, and the valve rod the other end is connected with leading type connecting rod; Described valve body is provided with the seal ring valve seat forming sealing configuration with valve plate; Be provided with sleeve base between described safety guard plate and valve gap, sleeve base is provided with the telescopic screw being set in leading type connecting rod.
Further, described is provided with Gland between valve body and valve gap, and valve rod is connected with leading type connecting rod through stretching into valve gap after Gland, is provided with airtight and watertight padding layer between described valve rod and Gland.
Further, described suction port is vertical with air outlet to be arranged.
Further, connected by clamping bolt between described valve body and valve gap.
Further, described packing layer is teflon plate filler.
The invention has the beneficial effects as follows: the present invention is reasonable in design, be provided with spring, valve plate and seal ring valve seat to cooperatively interact, opening and closing is rapid, improves the sealability of spring rock gas safety valve, simultaneously safety valve manufacture and maintenance all more convenient, long service life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
1. valve bodies, 2. suction port, 3. valve rod in figure; 4. lower springs seat, 5. spring, 6. upper springs seat; 7. leading type connecting rod, 8. telescopic screw, 9. safety guard plate; 10. sleeve base, 11. air outlets, 12. valve gaps; 13. clamping bolts, 14. Glands, 15. packing layers; 16. seal ring valve seats, 17. valve plates.
Embodiment
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of spring rock gas safety valve as shown in Figure 1, there is valve body 1, valve body 1 is provided with suction port 2 and air outlet 11, valve gap 12 and safety guard plate 9 is disposed with above valve body 1, valve rod 3 is provided with in valve body 1, valve gap 12 center is provided with leading type connecting rod 7, and valve gap 12 is provided with upper springs seat 6 and lower springs seat 4, is provided with the spring 5 be set on leading type connecting rod 7 between upper springs seat 6 and lower springs seat 4; Valve rod 3 one end is connected with valve plate 17, and valve rod 3 the other end is connected with leading type connecting rod 7; Valve body 1 is provided with the seal ring valve seat 16 forming sealing configuration with valve plate 17; Be provided with sleeve base 10 between safety guard plate 9 and valve gap 12, sleeve base 10 is provided with the telescopic screw 8 being set in leading type connecting rod 7.
Between valve body 1 and valve gap 12, be provided with Gland 14, valve rod 3 is connected with leading type connecting rod 7 through stretching into valve gap 12 after Gland 14, is provided with airtight and watertight padding layer 15 between valve rod 3 and Gland 14; Suction port 2 is vertical with air outlet 11 to be arranged; Connected by clamping bolt 13 between valve body 1 and valve gap 12; Packing layer 15 is teflon plate filler.
When natural gas line internal pressure is greater than opening pressure of safety valve, rock gas enters from suction port 2, and promote valve plate 17 and move up and to be separated with seal ring valve seat 16, spring rock gas safety valve is opened, air outlet 11 discharge unit rock gas, prevents pressure from continuing to raise; When natural gas line internal pressure is equal to or less than opening pressure of safety valve, spring 5 discharges torque force, and promotion valve plate 17 moves down and forms sealing configuration with seal ring valve seat 16, stops natural gas leakage.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. a spring rock gas safety valve, it is characterized in that: there is valve body (1), described valve body (1) is provided with suction port (2) and air outlet (11), described valve body (1) top is disposed with valve gap (12) and safety guard plate (9), valve rod (3) is provided with in valve body (1), valve gap (12) center is provided with leading type connecting rod (7), valve gap (12) is provided with upper springs seat (6) and lower springs seat (4), the spring (5) be set on leading type connecting rod (7) is installed between upper springs seat (6) and lower springs seat (4), described valve rod (3) one end is connected with valve plate (17), and valve rod (3) the other end is connected with leading type connecting rod (7), described valve body (1) is provided with the seal ring valve seat (16) forming sealing configuration with valve plate (17), be provided with sleeve base (10) between described safety guard plate (9) and valve gap (12), sleeve base (10) is provided with the telescopic screw (8) being set in leading type connecting rod (7).
2. spring rock gas safety valve according to claim 1, it is characterized in that: described is provided with Gland (14) between valve body (1) and valve gap (12), valve rod (3) is connected with leading type connecting rod (7) through stretching into valve gap (12) after Gland (14), is provided with airtight and watertight padding layer (15) between described valve rod (3) and Gland (14).
3. spring rock gas safety valve according to claim 1, is characterized in that: described suction port (2) is vertical with air outlet (11) to be arranged.
4. spring rock gas safety valve according to claim 1, is characterized in that: connected by clamping bolt (13) between described valve body (1) and valve gap (12).
5. the spring rock gas safety valve according to claim 1 and 2, is characterized in that: described packing layer (15) is teflon plate filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356570.4A CN105276249A (en) | 2014-07-24 | 2014-07-24 | Spring-type natural gas safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356570.4A CN105276249A (en) | 2014-07-24 | 2014-07-24 | Spring-type natural gas safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276249A true CN105276249A (en) | 2016-01-27 |
Family
ID=55145769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356570.4A Pending CN105276249A (en) | 2014-07-24 | 2014-07-24 | Spring-type natural gas safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276249A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141458Y (en) * | 2007-12-26 | 2008-10-29 | 北京航天试验技术研究所 | High-pressure low-temperature safety valve |
| CN201672115U (en) * | 2010-05-07 | 2010-12-15 | 常州市汇丰船舶附件制造有限公司 | High pressure gas safety valve |
| CN202371240U (en) * | 2011-12-19 | 2012-08-08 | 永一阀门集团有限公司 | Soft seal safety valve |
| CN204004636U (en) * | 2014-07-24 | 2014-12-10 | 周平 | Spring rock gas safety valve |
-
2014
- 2014-07-24 CN CN201410356570.4A patent/CN105276249A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141458Y (en) * | 2007-12-26 | 2008-10-29 | 北京航天试验技术研究所 | High-pressure low-temperature safety valve |
| CN201672115U (en) * | 2010-05-07 | 2010-12-15 | 常州市汇丰船舶附件制造有限公司 | High pressure gas safety valve |
| CN202371240U (en) * | 2011-12-19 | 2012-08-08 | 永一阀门集团有限公司 | Soft seal safety valve |
| CN204004636U (en) * | 2014-07-24 | 2014-12-10 | 周平 | Spring rock gas safety valve |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |
|
| WD01 | Invention patent application deemed withdrawn after publication |