CN202302140U - High pressure heat-preserving blowing safety valve - Google Patents
High pressure heat-preserving blowing safety valve Download PDFInfo
- Publication number
- CN202302140U CN202302140U CN2011203666707U CN201120366670U CN202302140U CN 202302140 U CN202302140 U CN 202302140U CN 2011203666707 U CN2011203666707 U CN 2011203666707U CN 201120366670 U CN201120366670 U CN 201120366670U CN 202302140 U CN202302140 U CN 202302140U
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- Prior art keywords
- valve
- flap
- valve seat
- high pressure
- seat
- 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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Abstract
The utility model relates to a high pressure heat-preserving blowing safety valve, which comprises a valve body, a valve seat, a valve flap, a valve rod and a valve cover. The valve flap is fixedly installed at the lower end of the valve rod, the upper end of the valve rod is connected with a spring setting device, the valve flap is located in a valve cavity at the outlet end of the valve seat, and the valve seat is installed on a valve body inlet pipeline. A blowing hole is mainly arranged on the valve body inlet pipeline, an inlet of the blowing hole is communicated with a steam pipeline, and an outlet of the blowing hole is an annular channel and located on the periphery of the valve seat sealing face. High temperature steam is fed into the valve seat, the valve flap sealing face and the valve cavity from the blowing hole, thereby preventing cooled media from being condensed on the valve seat sealing face, the valve flap sealing face and an overflowing component in the valve cavity. The high pressure heat-preserving blowing safety valve has the advantages of being reliable in sealing performance and the like, and is suitable for high pressure condensing and coking medium pipelines or containers.
Description
Technical field
The utility model relates to valve field, particularly about a kind of safety valve.The utility model is applicable to the safety valve on high pressure condensation, coking capacity medium pipeline or the container.
Background technique
The structure of existing Direct spring loaded safety valve generally is made up of valve body, valve seat, flap, valve rod, valve gap, spring.Valve rod lower end fixed installation flap; The upper end connects the spring setting device, and flap is positioned at the valve pocket of valve seat outlet end, when valve seat suction side pressure reaches the spring Set pressure; Pressure medium promotes flap and overcomes spring force unlatching discharge of safety valve pressure, protective system pressurized container and device security.Its shortcoming is: when in condensability or coking capacity medium operating mode, using, can be condensed on valve seat and flap sealing surface and the passage flow passage components after the medium cooling, influence the sealability between valve seat and the flap, sealability is unreliable.
Summary of the invention
The purpose of the utility model is the shortcoming that exists to existing technology, provides the reliable high pressure insulation of a kind of sealability to purge safety valve.
The technological scheme of the utility model comprises valve body, valve seat, flap, valve rod, valve gap, valve rod lower end fixed installation flap, and the upper end connects the spring setting device; Flap is positioned at the valve pocket of valve seat outlet end; Valve seat is installed on the valve body inlet pipeline, mainly is on the valve body inlet pipeline, to be shaped on purge hole, and the import of this purge hole is communicated with steam line; Outlet is an annular pass, is positioned at the sealing surface of seat periphery.
The advantage of the utility model be provided with the purge hole that is communicated with steam line in the sealing surface of seat periphery; In purge hole, in valve seat, flap sealing surface and valve pocket, import high-temperature steam; Prevent to condense on the flow passage components in sealing surface of seat and flap sealing surface and the valve pocket after the medium cooling, its sealability is reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
High pressure insulation as shown in Figure 1 purges safety valve, comprises valve body 3, valve seat 1, flap 6, valve rod 7, valve gap 13, valve rod 7 lower ends fixed installation flap 6; This flap 6 is fixedly connected with valve rod 7 through Disc holder; Valve rod 7 upper ends connect the spring setting device, and flap 6 is positioned at the valve pocket of valve seat 1 outlet end, and valve seat 1 is installed on valve body 3 inlet pipelines 2; On valve body 3 inlet pipelines 2, be shaped on purge hole; The import of this purge hole is communicated with steam line, and outlet is an annular pass, is positioned at valve seat 1 sealing surface periphery.Steam gets into from purge hole; Blow out from the annular pass; Be directly injected to sealing surface and interior each flow passage components surface of valve pocket of valve seat 1 and flap 6; Each flow passage components in the sealing surface of valve seat 1 and flap 6 and the valve pocket are purged and are incubated, prevent that medium from condensing on each flow passage components in the sealing surface of valve seat 1 and flap 6 and valve pocket.
The spring setting device is installed in the valve gap 13, is made up of spring 14, upper spring seat 16, lower spring cup, and lower spring is fixedly mounted on the valve rod 7; Upper spring seat 16 is fixedly mounted on Adjusting bolt Adjusting screw 17 lower ends; These Adjusting bolt Adjusting screw 17 peripheries are by being threaded on the valve gap 13, and are fastened by 19 of locking nuts, on the valve gap 13 of Adjusting bolt Adjusting screw 17 upper ends, are provided with protecting cover 20; Protecting cover 20 is installed on the valve gap 13 by screw thread, is provided with sealing gasket 18 between its lower end surface and the valve gap 13.Valve gap 13 is fixedly mounted on the valve body 3 by bolt 12 and nut 11, and sidewall is provided with air-vent 15.
Claims (1)
1. a high pressure insulation purges safety valve; Comprise valve body (3), valve seat (1), flap (6), valve rod (7), valve gap (13), valve rod (7) lower end fixed installation flap (6), valve rod (7) upper end connects the spring setting device; Flap (6) is positioned at the valve pocket of valve seat (1) outlet end; Valve seat (1) is installed on valve body (3) inlet pipeline (2), it is characterized in that on valve body (3) inlet pipeline (2), being shaped on purge hole, and the import of this purge hole is communicated with steam line; Outlet is an annular pass, is positioned at valve seat (1) sealing surface periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203666707U CN202302140U (en) | 2011-09-29 | 2011-09-29 | High pressure heat-preserving blowing safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203666707U CN202302140U (en) | 2011-09-29 | 2011-09-29 | High pressure heat-preserving blowing safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302140U true CN202302140U (en) | 2012-07-04 |
Family
ID=46371036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203666707U Expired - Fee Related CN202302140U (en) | 2011-09-29 | 2011-09-29 | High pressure heat-preserving blowing safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302140U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090581A (en) * | 2015-08-19 | 2015-11-25 | 湖北三江航天红峰控制有限公司 | Safety valve for high-temperature and high-pressure gas delivery pipeline |
| CN109505990A (en) * | 2018-12-29 | 2019-03-22 | 重庆普惠斯阀门制造有限公司 | A kind of anti-sticking small flow valve |
| CN111237644A (en) * | 2020-03-27 | 2020-06-05 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
-
2011
- 2011-09-29 CN CN2011203666707U patent/CN202302140U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090581A (en) * | 2015-08-19 | 2015-11-25 | 湖北三江航天红峰控制有限公司 | Safety valve for high-temperature and high-pressure gas delivery pipeline |
| CN109505990A (en) * | 2018-12-29 | 2019-03-22 | 重庆普惠斯阀门制造有限公司 | A kind of anti-sticking small flow valve |
| CN111237644A (en) * | 2020-03-27 | 2020-06-05 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
| CN111237644B (en) * | 2020-03-27 | 2024-04-26 | 荆门美中美阀门有限公司 | Valve linkage control system on high-pressure medium conveying line |
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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: 20120704 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |