CN202812221U - Fire-fighting equipment valve - Google Patents
Fire-fighting equipment valve Download PDFInfo
- Publication number
- CN202812221U CN202812221U CN 201220465137 CN201220465137U CN202812221U CN 202812221 U CN202812221 U CN 202812221U CN 201220465137 CN201220465137 CN 201220465137 CN 201220465137 U CN201220465137 U CN 201220465137U CN 202812221 U CN202812221 U CN 202812221U
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- Prior art keywords
- cavity
- closure member
- valve
- fire
- endoporus
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- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a fire-fighting equipment valve, comprising a valve body with an inner hole and a closing element arranged in the inner hole, wherein the inner hole is internally provided with a valve base for positioning the closing element; the closing element is placed on the valve base; the inner hole comprises a first chamber and a second chamber; gas pressure of the first chamber acts on the upper end face of the closing element and gas pressure of the second chamber acts on the lower end face of the closing element; a leaking opening is arranged on the valve body; and the leaking opening and the second chamber are controlled to be communicated and closed through sliding the closing element along the inner hole. The fire-fighting equipment valve is simple in structure; the fault rate of a device is low, the reliability is high and the system booting is sensitive; and the fire-fighting equipment valve is very suitable for being used as an automatic control valve of various middle-pressure and low-pressure gas mediums, and particularly a fire detection pipe type valve of the middle-pressure and low-pressure gas mediums in a fire-fighting field.
Description
Technical field
The utility model relates to the fire prevention field, relates in particular to a kind of fire fighting apparatus valve.
Background technique
In present fire prevention field, gas extinguishing system is widely used, and the extinguishing agent of selecting (for example: CO
2Carbon dioxide, HFC-227ea heptafluoro-propane) compare other firing-fighting mediums, have: environmental protection, pollution-free (to atmospheric ozone layer without destruction (ODP value be zero), HFC-227ea is 31～42 years in the atmospheric layer waiting time, meet environmental requirement), need not the characteristics such as labor cleaning after the fire extinguishing operation.
Existing control valve, shown in patent ZL03258975.1, general adopt this structure: comprise valve body with endoporus, be arranged on the closure member in the endoporus, valve seat in order to the positioning closing element is set in the endoporus, closure member places on this valve seat, with one fixedly the spring of elastic force closure member is resetted.Under the working state, spring is compressed.Gas pressure on acting on closure member is during less than the tension force of spring, valve opening; Its shortcoming is,,, can not change along with the variation of external temperature because the tension force of spring is certain along with the variation of temperature relatively fiercer the time for the pressure in the firing-fighting medium of low pressure, particularly steel cylinder, and such valve causes misoperation easily.
The model utility content
For the problems referred to above, the utility model provides a kind of fire fighting apparatus valve, to solve problems of the prior art.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of fire fighting apparatus valve, comprise valve body with endoporus, be arranged on the closure member in the endoporus, valve seat in order to the positioning closing element is set in the endoporus, closure member places on this valve seat, endoporus comprises for the first cavity that is communicated with the spy fire tube with in order to be communicated with the second cavity of firing-fighting medium reservoir bottle, the gas pressure of the first cavity acts on the upper-end surface of closure member, and the gas pressure of the second cavity acts on the lower end surface of closure member; Be provided with bleed outlet on the described valve body, slide to control it by closure member along endoporus between this bleed outlet and the second cavity and be communicated with and close; It is characterized in that being provided with pressed gas or medium on the closure member in the described valve body can only small flow, the slow pore of circulation, pore is communicated with the first cavity and the second cavity.
In an embodiment of the present utility model, seal ring is arranged on the closure member, be used for isolation the first cavity and the second cavity, so that the gas of the first cavity and the second cavity can only circulate slowly by the pore in the closure member;
In an embodiment of the present utility model, Sealing is arranged on the closure member, when closure member is pressed to valve seat, Sealing sealing and isolation bleed outlet.
In an embodiment of the present utility model, the second cavity is semi-circular cavity, also is connected with gas-charging connection, pressure gauge and blowout disk on its wall.
In an embodiment of the present utility model, described the second cavity be connected in order to the syphon tube that gos deep into the firing-fighting medium reservoir bottle.
In an embodiment of the present utility model, the first cavity is connected by control ball valve and spy fire tube.
In an embodiment of the present utility model, described bleed outlet is bleed outlet radially.
In an embodiment of the present utility model, described bleed outlet place can connect extinguishing agent delivery pipe and nozzle.
Fire fighting apparatus valve arrangement of the present utility model is simple, reliable in action is sensitive.After visiting fire tube and running into flame and break, coupled the first logical cavity internal pressure reduces rapidly; And the gas pressure of the second cavity can't add to rapidly in the first cavity; The pressure disequilibrium of closure member end face both sides, closure member are slided along cavity under the pressure of the second cavity rapidly, thus conducting the second cavity and bleed outlet; Firing-fighting medium from then on passage extinguishing agent delivery pipe and nozzle is transported to point of ignition.
The utility model is simple in structure, the failure rate is low of device, and reliability is high, and system starts sensitive, is suitable as very much the spy fire tube type valve of mesolow gas medium of the autocontrol valve, particularly fire-fighting domain of various mesolow gas mediums.
The utility model is owing to take integral seal, and pressurized air can not let out from the non-tight face of Sealing, therefore than conventional circular gasket seal better effects if, more is conducive to seal the mesolow gas medium.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better mode of execution of this case and be obtained to be well understood to.
Description of drawings
Fig. 1 is that fire fighting apparatus valve of the present utility model is applied to the schematic representation on the fire fighting apparatus;
Fig. 2 is the structural representation of fire fighting apparatus valve of the present utility model;
Fig. 3 is an equivalent structure schematic representation of fire fighting apparatus valve of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, further set forth the utility model below in conjunction with specific embodiment.
Referring to Fig. 1, a kind of fire fighting apparatus valve (3) is installed in firing-fighting medium reservoir bottle (1) and temperature-sensitive reservoir pressure and visits between the fire tube (2).
Being filled with extinguishing agent and supercharging (propelling) inert gas or extinguishing agent itself in the firing-fighting medium reservoir bottle (1) has evaporation (volatilization) and produces and to propel pressure.The gas fire-extinguishing medium of shape of being in a liquid state under volatilizable, the pressurized state such as, gas fire-extinguishing medium.
The temperature-sensitive reservoir pressure is visited fire tube (2) and is adopted macromolecular material to make, according to the distinctive physical property of body itself, body is subjected to focus can meet thermal softening and decomposes, produces directional pressure venting/liberation port when it runs into fire/source, the interior pressure of body this moment reduces rapidly, and starts fire fighting apparatus valve enforcement fire extinguishing operation.Adopting the temperature-sensitive reservoir pressure to visit fire tube is detecting element, has other and surveys the advantage that components and parts (temperature sensing glass ball, easily hold metal, industrial temperature-sensitive igniter fuse) can't be compared.At first, the thermal sensitivity reservoir pressure is visited the sensitivity of fire tube far above other detecting element; Construct, install simple and convenient; Compare industrial temperature-sensitive igniter fuse, in the signal transmission, avoided the conduction of secondary burning things which may cause a fire disaster, reduced the generation of fire.
Referring to Fig. 2, fire fighting apparatus valve (3) comprises the valve body (4) with endoporus, closure member (5) is housed in the endoporus, in the present embodiment, closure member (5) be one with the suitable piston in endoporus aperture, be provided with a valve seat (12) on the inwall of endoporus, in order to positioning closing element (5).Closure member (5) places on this valve seat (12).
Endoporus comprise for visit the first cavity (upper cavity) (7) that fire tube is communicated with and in order to be communicated with second cavity (lower chamber) (8) of firing-fighting medium reservoir bottle, the gas pressure of the first cavity (7) acts on the upper-end surface of closure member, and the gas pressure of the second cavity (8) acts on the lower end surface of closure member.Be provided with bleed outlet (9) on the valve body, in the present embodiment, bleed outlet (9) is bleed outlet radially.Sliding to control it by closure member (5) along endoporus between bleed outlet (9) and the second cavity (8) is communicated with and closes.Being provided with pressed gas or medium on the closure member (5) in the valve body (4) can only small flow, the slow pore (6) of circulation, and pore (6) is communicated with the first cavity and the second cavity.The gas pressure of the second cavity (8), one side acts directly on the lower end surface of closure member (5), acts on the one hand in addition the upper-end surface of closure member (5) by pore (6).Because the lower end surface of closure member (5), under the cooperation of seal element (14) and valve seat (12), only the area of some has been subject to the gas pressure from the second cavity (8).Therefore, the pressure of the upper-end surface of closure member (5) formation is greater than the pressure of lower end surface formation; Be under the effect of compressed gas, if the first cavity (7) and the second cavity (8) pressure equate that closure member (5) will be pressed on the valve seat (12), thereby bleed outlet (9) and the second cavity (8) are isolated.
On closure member (5) and the position that valve seat (12) cooperates Sealing (14) is arranged; When closure member (5) is pressed to valve seat (12), Sealing (14) sealing and isolation bleed outlet (9).On closure member (5) and the position that valve body (4) endoporus cooperates Sealing (15) is arranged, be used for isolation the first cavity and the second cavity, so that the gas of the first cavity and the second cavity can only circulate slowly by the pore in the closure member.
The first cavity (7) is connected by control ball valve (11) and spy fire tube (2).When any part of the first cavity (7), startup control ball valve (11) and thermal sensitivity reservoir pressure spy fire tube (2) has micro-leakage, extinguishing agent and pressurization gas thereof add to the first cavity (7) and thermal sensitivity spy fire tube (2) by firing-fighting medium reservoir bottle (1) slowly through the second cavity (8), pore (6), to continue to guarantee the seal closure state of fire fighting apparatus valve (3).
Same, when temperature occured slowly to change, the pressure of firing-fighting medium reservoir bottle (1) also changed thereupon, but because the existence of pore (6) is arranged, and the design of the special construction of this valve, fire fighting apparatus valve (3) can be kept the seal closure state.
When thermal sensitivity pressurising spy fire tube (2) detects burning things which may cause a fire disaster or thermal source (the temperature calorific value that is higher than the setting of thermal sensitivity pressurising spy fire tube (2) body), the thermal sensitivity pressurising is visited fire tube (2) and is started at point of ignition or hot projecting point directional splitting, and its body internal pressure reduces rapidly.Control ball valve (11) (being connection during working state) and the first cavity (7) are visited fire tube (2) with the thermal sensitivity pressurising and are communicated with, and its pressure also is reduced near atmospheric pressure rapidly.Because the pore (6) on the slip closure member (5) is because of in small in time make-up gas to the first cavity in its aperture (7) and the temperature-sensitive spy fire tube (2), the gas pressure of the second cavity this moment (8) has surpassed the upper-end surface pressure that the first cavity (7) acts on closure member (5) at the lower end surface pressure of closure member (5), slip closure member (5) is boosted rapidly to be opened, extinguishing agent under the supercharging of pressurization gas or self evaporation (volatilization) gas via syphon tube (10), the second cavity (8), put out a fire via bleed outlet (9) discharge.This shows that as long as there is pressed gas to exist in the firing-fighting medium reservoir bottle, and the pressure balance of the first cavity and the second cavity is not broken fast, closure member just can not move.Firing-fighting medium will be sealed in the fire-fighting equipment.
The second cavity (8) be connected in order to the syphon tube (10) that gos deep into the firing-fighting medium reservoir bottle so that fully draw firing-fighting medium in the firing-fighting medium reservoir bottle (1), further reduce the residual volume of medicament, improve the utilization efficiency of extinguishing agent.
Be connected with gas-charging connection (16), pressure gauge and blowout disk on the second cavity (8).
As shown in Figure 3, valve of the present utility model also has a mutation.This valve comprises valve body (24) with endoporus, is arranged on the closure member (25) in the endoporus, valve seat (32) in order to positioning closing element (25) is set in the endoporus, closure member (25) places on this valve seat (32), endoporus comprises for the first cavity (27) that is communicated with spy fire tube (22) with in order to be communicated with second cavity (28) of firing-fighting medium reservoir bottle, the gas pressure of the first cavity acts on the upper-end surface of closure member, and the gas pressure of the second cavity acts on the lower end surface of closure member; Be provided with bleed outlet (29) on the described valve body, slide to control it by closure member (25) along endoporus between this bleed outlet (29) and the second cavity (28) and be communicated with and close; Being provided with pressed gas or medium on the closure member (25) in the described valve body (24) can only small flow, the slow pore (26) of circulation, and pore (26) is communicated with the first cavity and the second cavity.This mutation designs according to the utility model patent equally, but its requirement to Sealing (34) and Sealing (35) is higher.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.
The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (7)
1. fire fighting apparatus valve, comprise valve body (4) with endoporus, be arranged on the closure member (5) in the endoporus, valve seat (12) in order to positioning closing element (5) is set in the endoporus, closure member (5) places on this valve seat (12), endoporus comprises for the first cavity (7) that is communicated with spy fire tube (2) with in order to be communicated with second cavity (8) of firing-fighting medium reservoir bottle (1), the gas pressure of the first cavity acts on the upper-end surface of closure member, and the gas pressure of the second cavity acts on the lower end surface of closure member; Be provided with bleed outlet (9) on the described valve body, slide to control it by closure member (5) along endoporus between this bleed outlet (9) and the second cavity (8) and be communicated with and close; It is characterized in that being provided with pressed gas or medium on the closure member (5) in the described valve body (4) can only small flow, the slow pore (6) of circulation, pore (6) is communicated with the first cavity and the second cavity.
2. fire fighting apparatus valve according to claim 1 is characterized in that, on described closure member (5) and the position that valve seat (12) cooperates Sealing (14) is arranged; When closure member (5) is pressed to valve seat (12), Sealing (14) sealing and isolation bleed outlet (9).
3. fire fighting apparatus valve according to claim 1 is characterized in that, on described closure member (5) and the position that valve body (4) endoporus cooperates Sealing (15) is arranged.
4. fire fighting apparatus valve according to claim 1 is characterized in that, is connected with gas-charging connection (16), pressure gauge and blowout disk on described the second cavity (8).
5. fire fighting apparatus valve according to claim 1 is characterized in that, described the second cavity (8) be connected in order to the syphon tube (10) that gos deep into the firing-fighting medium reservoir bottle.
6. fire fighting apparatus valve according to claim 1 is characterized in that, described bleed outlet (9) is bleed outlet radially.
7. fire fighting apparatus valve according to claim 1 is characterized in that, the first cavity (7) is connected by control ball valve (11) and spy fire tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220465137 CN202812221U (en) | 2012-09-12 | 2012-09-12 | Fire-fighting equipment valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220465137 CN202812221U (en) | 2012-09-12 | 2012-09-12 | Fire-fighting equipment valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812221U true CN202812221U (en) | 2013-03-20 |
Family
ID=47871091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220465137 Expired - Fee Related CN202812221U (en) | 2012-09-12 | 2012-09-12 | Fire-fighting equipment valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641843A (en) * | 2016-03-22 | 2016-06-08 | 北京利达海鑫灭火系统设备有限公司 | Fire detecting pipe temperature sensing self-starting fire extinguishing device container valve |
-
2012
- 2012-09-12 CN CN 201220465137 patent/CN202812221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105641843A (en) * | 2016-03-22 | 2016-06-08 | 北京利达海鑫灭火系统设备有限公司 | Fire detecting pipe temperature sensing self-starting fire extinguishing device container valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI WARMTEC MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SHANGHAI SHIGEDENG EQUIPMENT FITTINGS CO., LTD. Effective date: 20140110 Owner name: SHANGHAI SHIGEDENG EQUIPMENT FITTINGS CO., LTD. Effective date: 20140110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201206 SONGJIANG, SHANGHAI TO: 201306 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140110 Address after: 5 building 1057, building 2, Xincheng Road, mud town, Shanghai, Pudong New Area 201306 Patentee after: SHANGHAI WARMTEC MANUFACTURING CO., LTD. Patentee after: Shanghai Shigedeng Equipment Fittings Co.,Ltd. Address before: The 201206 Shanghai new economic Park in Songjiang District City, Shanghai Caohejing Development Zone No. 201, building 2, Room 201, Yi Lu Patentee before: Shanghai Shigedeng Equipment Fittings Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |