CN105276269A - Selector valve used for inert gas fire extinguishing system - Google Patents
Selector valve used for inert gas fire extinguishing system Download PDFInfo
- Publication number
- CN105276269A CN105276269A CN201510728556.7A CN201510728556A CN105276269A CN 105276269 A CN105276269 A CN 105276269A CN 201510728556 A CN201510728556 A CN 201510728556A CN 105276269 A CN105276269 A CN 105276269A
- Authority
- CN
- China
- Prior art keywords
- selector valve
- valve
- inert gas
- starting
- spool
- 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
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- 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
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- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention relates to a selector valve used for an inert gas fire extinguishing system. The selector valve comprises a valve body, an upper cover, a valve element, a pressure ring and a diversion cone. The selector valve is characterized in that a ring-shaped air cylinder is formed among the valve element, the pressure ring and the valve body, wherein a starting gas flue which is communicated with a starter interface is arranged on the side wall of the valve body; and the starting gas flue is communicated with the ring-shaped air cylinder. The selector valve has the beneficial effects that: compared with the prior art, the selector valve adopts a structure for directly connecting the starting gas flue of the selector valve with a drive pipeline, so that the selector valve does not need release of a gas storage steel cylinder to provide starting pressure. The starting of the selector valve is truly synchronous with the release of a steel cylinder set, so that the international requirements of starting the selector valve before starting a container valve or simultaneously starting the selector valve and the container valve are met, and therefore, the safety of the system is improved.
Description
Technical field
The invention belongs to valve, particularly relate to a kind of selector valve for inert gas fire-fighting system.
Background technique
Gas extinguishing system is mainly used in the environment being unsuitable for arranging other suppression systems such as Water fire extinguishing system, such as computer room, important library files shop, mobile communication base station (room), UPS room, battery chamber, general diesel generator room etc.It is automatic that gas extinguishing system comprises mixed gas.Its feature: mixed gas extinguishing agent is the gas mixed according to a certain percentage by nitrogen, argon gas and carbon dioxide, these gases all naturally exist in atmospheric layer, loss is not had to atmospheric ozone layer, also can not have an impact to " greenhouse effect " of the earth, and mixed gas is nontoxic, colourless, tasteless, non-corrosiveness, non-conductive, neither support burning, not producing with most of material again and react, is a kind of very good environment protection type extinguishing agent.Selector valve is mainly used in one of critical component on inert gas fire-fighting system source of the gas supply two or more protected zone device.Its effect is the direction of choosing release inert gas, to realize the quick extinguishing of preferential direction.Main pipeline from header pipe to each protected zone has a selector valve, and selector valve is also the node driving gas circuit first process, is the starting point that the inert gas pharmaceutical quantities needed by protection subregion divides steel cylinder group and starting-up later time.Should open according to the requirement selector valve of GB GB25972-2010 " gas extinguishing system and parts " before vessel valve is opened or open with vessel valve simultaneously.The selector valve structure of current use comprises valve body, upper cover, spool, pressure ring, flow deflecting cone and valve inside, and described body cavity is equipped with spool and flow deflecting cone, and body cavity is provided with air flue, and body wall is provided with driving gas circuit.Its mode of operation is by driving gas circuit to make starter action.Air flue is not come round mutually with driving gas circuit, is in atmospheric pressure state when steel cylinder does not discharge.When opening the air flue selected in valve body, the pressure conduction after gas storage cylinder release in header pipe, to the air flue of selector valve, promotes the piston valve core in selector valve, opens selector valve.Strictly say the requirement not meeting GB " selector valve should be opened before vessel valve is opened or simultaneously ", this kind of Starting mode also exists major hidden danger in Security.
Summary of the invention
The present invention is to overcome deficiency of the prior art, provides a kind of selector valve for inert gas fire-fighting system, is directly connected by the startup air flue of selector valve, makes selector valve not need the release of gas storage cylinder to provide breakout pressure with driving pipeline.
The present invention for achieving the above object, be achieved through the following technical solutions, a kind of selector valve for inert gas fire-fighting system, comprise valve body, upper cover, spool, pressure ring and flow deflecting cone, it is characterized in that: described spool and looping cylinder between pressure ring and valve body, described body wall is provided with the startup air flue with starter orifice, and described startup air flue is communicated with circular cylinder.
Described body cavity is provided with the spool be slidably connected with it, described spool upper end-hole is provided with the O-ring conical surface, the O-ring conical surface touches with the bevelled sealing gasket of band, described sealing gasket is sleeved on the cylindrical end of flow deflecting cone, described flow deflecting cone and upper cover affixed, described spool is provided with hollow cavity, is equipped with Returnning spring in described hollow cavity.
Described spool upper end slidably connects pressure ring, described pressure ring inside and outside circle is all equipped with O RunddichtringO, and is tightly connected with body cavity.
The pressure ring upper surface of described body cavity is provided with split washer.
Beneficial effect: compared with prior art, present invention employs the startup air flue of selector valve and the structure driving pipeline to be directly connected, makes selector valve not need the release of gas storage cylinder to provide breakout pressure.The startup achieving selector valve is real simultaneously in the release of steel cylinder group, meets the requirement of GB " selector valve should be opened before vessel valve is opened or simultaneously ", improves the Security of system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
In figure: 1, valve body, 2, upper cover, 3, spool, 4, pressure ring, 5, flow deflecting cone, 6, sealing gasket, 7, split washer, 8, Returnning spring, 9, starter interface, 10, start air flue, 11, O RunddichtringO, 12.
Embodiment
Below in conjunction with preferred embodiment, to according to embodiment provided by the invention, details are as follows: embodiment
Refer to accompanying drawing, present embodiments provide a kind of selector valve for inert gas fire-fighting system, comprise valve body 1, upper cover 2, spool 3, pressure ring 4 and flow deflecting cone 5, described body cavity is provided with the spool be slidably connected with it, and described spool upper end-hole is provided with the O-ring conical surface, and the O-ring conical surface touches with the bevelled sealing gasket 6 of band, described sealing gasket is sleeved on the cylindrical end of flow deflecting cone, described flow deflecting cone and upper cover affixed, described spool is provided with hollow cavity, is equipped with Returnning spring 8 in described hollow cavity.Described spool upper end slidably connects pressure ring, described pressure ring inside and outside circle is all equipped with O RunddichtringO 11, and is tightly connected with body cavity.The pressure ring upper surface of described body cavity is provided with split washer 7.Described spool 3 and looping cylinder 12 between pressure ring 4 and valve body 1, described body wall is provided with the startup air flue 10 be communicated with starter interface 9, and described startup air flue is communicated with circular cylinder 12.
Working procedure
The spool of selector valve and looping cylinder between pressure ring and valve body, when driving nitrogen bottle release, first drive the pressure of gas pressure on selector valve spool 3 ring surface in pipeline to be greater than the elastic force of Returnning spring, then piston valve core can be pushed down and open.Meet the Standard of " selector valve should be opened before vessel valve is opened or simultaneously "; System reset needs venting to drive the air pressure of pipeline, and now the elastic force of Returnning spring makes selector valve spool upwards close.
When FACP sends the electromagnetic driver of actuating signal startup driving nitrogen bottle vessel valve, driving nitrogen bottle discharges, airtight driving tube rood is to startup air pressure, and the starter be applied on respective partition selector valve and each gas storage cylinder vessel valve, selector valve is first pressurized node of this boot partition, thus ensure that selector valve and vessel valve starter at least can start simultaneously.The inert gas that such gas storage cylinder discharges does not need first to make selector valve open, but the selector valve directly by having opened, improve the Security of system.
Above-mentioned detailed description of this kind of selector valve for inert gas fire-fighting system being carried out with reference to embodiment; illustrative instead of determinate; several embodiments can be listed according to institute's limited range; therefore in the change do not departed under general plotting of the present invention and amendment, should belong within protection scope of the present invention.
Claims (4)
1. the selector valve for inert gas fire-fighting system, comprise valve body, upper cover, spool, pressure ring and flow deflecting cone, it is characterized in that: described spool and looping cylinder between pressure ring and valve body, described body wall is provided with the startup air flue with starter orifice, and described startup air flue is communicated with circular cylinder.
2. the selector valve for inert gas fire-fighting system according to claim 1, it is characterized in that: described body cavity is provided with the spool be slidably connected with it, described spool upper end-hole is provided with the O-ring conical surface, the O-ring conical surface touches with the bevelled sealing gasket of band, described sealing gasket is sleeved on the cylindrical end of flow deflecting cone, described flow deflecting cone and upper cover affixed, described spool is provided with hollow cavity, is equipped with Returnning spring in described hollow cavity.
3. the selector valve for inert gas fire-fighting system according to claim 1 and 2, is characterized in that: described spool upper end slidably connects pressure ring, described pressure ring inside and outside circle is all equipped with O RunddichtringO, and is tightly connected with body cavity.
4. the selector valve for inert gas fire-fighting system according to claim 1 and 2, is characterized in that: the pressure ring upper surface of described body cavity is provided with split washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728556.7A CN105276269A (en) | 2015-11-02 | 2015-11-02 | Selector valve used for inert gas fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728556.7A CN105276269A (en) | 2015-11-02 | 2015-11-02 | Selector valve used for inert gas fire extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276269A true CN105276269A (en) | 2016-01-27 |
Family
ID=55145789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510728556.7A Pending CN105276269A (en) | 2015-11-02 | 2015-11-02 | Selector valve used for inert gas fire extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276269A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105582635A (en) * | 2016-03-22 | 2016-05-18 | 北京利达海鑫灭火***设备有限公司 | Selection valve of fire detecting tube temperature sensing self-starting fire extinguishing apparatus |
| CN106286916A (en) * | 2016-08-31 | 2017-01-04 | 慎江阀门有限公司 | A kind of valveless shape valve stem valve |
| CN108561560A (en) * | 2018-04-13 | 2018-09-21 | 宜兴市锦辉铜材有限公司 | A kind of selector valve for preventing valve body piston stuck |
-
2015
- 2015-11-02 CN CN201510728556.7A patent/CN105276269A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105582635A (en) * | 2016-03-22 | 2016-05-18 | 北京利达海鑫灭火***设备有限公司 | Selection valve of fire detecting tube temperature sensing self-starting fire extinguishing apparatus |
| CN105582635B (en) * | 2016-03-22 | 2018-10-02 | 北京利达海鑫灭火***设备有限公司 | Visit fire tube temperature-sensitive self-starting extinguishing device selector valve |
| CN106286916A (en) * | 2016-08-31 | 2017-01-04 | 慎江阀门有限公司 | A kind of valveless shape valve stem valve |
| CN106286916B (en) * | 2016-08-31 | 2019-09-24 | 慎江阀门有限公司 | A kind of valveless shape valve stem valve |
| CN108561560A (en) * | 2018-04-13 | 2018-09-21 | 宜兴市锦辉铜材有限公司 | A kind of selector valve for preventing valve body piston stuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |
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| WD01 | Invention patent application deemed withdrawn after publication |