A kind of non-stored-pressure type piston pressurization automatic fire extinguisher
Technical field
The utility model belongs to fire prevention field, particularly a kind of non-stored-pressure type piston pressurization automatic fire extinguisher.
Background technology
At present, unless outside the stored-pressure type dry powder extinguishing installation, most of automatic fire extinguishers are all stored-pressure types, that is: the gas (being generally nitrogen) that drives agent application is stored in a container with elevated pressures.Because driving gas is long-term with pressure depositing, very easily produce and leak, when urgently needed in case the condition of a fire occurs, can fire-fighting efficiency occur because driving pressure is not enough and reduce the phenomenon that maybe can't spurt.Therefore, must regularly carry out pneumatic compression to this class extinguishing device.Because the quantity that the stored-pressure type extinguishing device comes into operation is quite huge, numerous extinguishing device like this is carried out frequent inflating pressure become a kind of very numerous superfluous work.
On the other hand, the driving gas of stored-pressure type extinguishing device and extinguishing chemical are stored in same container and pressurization usually jointly, and inevitable some driving gas of this mode can be dissolved in liquid-state extinguishing agent.In pipeline in course of conveying, along with pressure constantly reduces, driving gas will be accompanied by extinguishing chemical steam and discharge when extinguishing chemical, produce a large amount of gas, carrying, form air bag and two-phase flow phenomenon in pipeline, directly affect the mobile performance of extinguishing chemical, reduced the flow of extinguishing chemical.Extinguishing chemical and driving gas are stored in same container, and the storage volume of driving gas is limited, and storage pressure can not be too high.Because the meltage of the higher driving gas of storage pressure is more, when extinguishing chemical discharges, pressure decreased is more obvious, and the gas that discharges is more, and air bag and two-phase flow phenomenon in course of conveying are more serious, have reduced fire-fighting efficiency.
The gas-powered powder extinguishing agent that non-stored-pressure type dry powder extinguishing installation adopts chemical reaction to generate spurts, do not need to extinguishing device inflating pressure problem although solved, but because using powder extinguishing agent, limited in its scope of application, also existing more, distinct issues are that the extinguishing chemical rate of residual extinguishing medium is high.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of and had that fire-fighting efficiency is high, compact conformation, do not need inflating pressure, extinguishing chemical all emptying, can adopt the advantages such as multiple extinguishing chemical, have the non-stored-pressure type piston pressurization automatic fire extinguisher in wider range of application and field.
The technical scheme of the utility model technology is achieved in that a kind of non-stored-pressure type piston pressurization automatic fire extinguisher, it is characterized in that: comprise the medicament storage cylinder, be arranged on piston and gas generating unit in the medicament storage cylinder, described piston is divided into airtight medicament chamber and actuator chamber fully with medicament storage cylinder internal cavity, described outside piston week is slidably matched with medicament storage cylinder inwall, described medicament chamber is connected with shower nozzle by the medicament delivery outlet, and described actuator chamber is connected with gas generating unit by passage.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, it is under servo condition, and described piston is positioned near passage one side.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, its described gas generating unit comprises aerogenesis chamber, the control device that is arranged on the indoor gas generator of aerogenesis and is electrically connected to gas generator, and described aerogenesis chamber is communicated with passage by pressure-reducing valve.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, its described aerogenesis chamber are arranged in the medicament storage cylinder, and described piston inner hole and aerogenesis chamber outer wall are slidably matched.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, its described medicament storage cylinder comprises medicament storage cylinder cylindrical shell and medicament storage cylinder top cover and medicament storage cylinder bottom, described shower nozzle is communicated with the medicament chamber by the medicament delivery outlet that is arranged on medicament storage cylinder top cover, described passage is arranged on medicament storage cylinder bottom, under servo condition, it is inboard that described piston leans against medicament storage cylinder bottom.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, its described aerogenesis chamber comprises the forward and backward end cap of aerogenesis chamber cylindrical shell and aerogenesis chamber, described aerogenesis chamber cylindrical shell is coaxial with medicament storage cylinder cylindrical shell, described piston inner hole and aerogenesis chamber cylindrical shell excircle are slidably matched, the forward and backward end cap in described aerogenesis chamber correspondence respectively is connected on medicament storage cylinder top cover and medicament storage cylinder bottom, is provided with on the rear end cap of described aerogenesis chamber and the pipe joint that the pressure-reducing valve air inlet is communicated with and the cable plug that is used for being connected gas generator and control device.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, it is being respectively arranged with sealing ring between described outside piston week and medicament storage cylinder cylinder inboard wall and between piston inner hole and aerogenesis chamber cylindrical shell excircle.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, it is provided with sealing ring at described medicament storage cylinder cylindrical shell and medicament storage cylinder top cover and medicament storage cylinder bottom junction, be provided with sealing ring at described aerogenesis chamber cylindrical shell and medicament storage cylinder top cover and medicament storage cylinder bottom junction, be provided with sealing ring in the forward and backward end cap of described aerogenesis chamber cylindrical shell and aerogenesis chamber junction.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, its described medicament equipped at outlet port is connected with check valve, and described check valve is communicated with shower nozzle by pipeline.
Non-stored-pressure type piston pressurization automatic fire extinguisher described in the utility model, it is provided with the medicament that is communicated with the medicament chamber and fills mouth on described medicament storage cylinder, and described medicament fills liquid-state extinguishing agent or powder extinguishing agent in the chamber.
The utility model by piston under the gases at high pressure effect that gas generating unit produces, extinguishing chemical in the medicament chamber is penetrated by shower nozzle implement fire extinguishing, efficiently solve the artificial frequent inflating pressure of need that existing stored-pressure type extinguishing device exists, the extinguishing chemical rate of residual extinguishing medium is high, fire-fighting efficiency is low, and the problems such as, extinguishing chemical rate of residual extinguishing medium height limited in the scope of application that exist of non-stored-pressure type dry powder extinguishing installation.The utlity model has that fire-fighting efficiency is high, compact conformation, do not need inflating pressure, extinguishing chemical all emptying, can adopt the advantages such as multiple extinguishing chemical, have wider range of application and field.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 is the medicament storage cylinder, and 1a is medicament storage cylinder cylindrical shell, and 1b is medicament storage cylinder top cover, 1c is medicament storage cylinder bottom, and 2 is piston, and 3 is the medicament chamber, 4 is actuator chamber, 5 is the medicament delivery outlet, and 6 is shower nozzle, and 7 is passage, 8 is gas generator, 9 is control device, and 10 is pressure-reducing valve, and 11 is the aerogenesis chamber, 11a is aerogenesis chamber cylindrical shell, 11b is aerogenesis chamber drive end bearing bracket, and 11c is aerogenesis chamber rear end cap, and 12 is pipe joint, 13 is cable plug, 14 is check valve, and 15 for medicament fills mouth, and 16 is sealing ring.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model technology is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
embodiment 1: as shown in Figure 1, a kind of non-stored-pressure type piston pressurization automatic fire extinguisher, comprise medicament storage cylinder 1, be arranged on piston 2 and gas generating unit in medicament storage cylinder 1, described medicament storage cylinder 1 comprises medicament storage cylinder cylindrical shell 1a and medicament storage cylinder top cover 1b and medicament storage cylinder bottom 1c, described piston 2 is divided into airtight medicament chamber 3 and actuator chamber 4 fully with medicament storage cylinder 1 internal cavity, under servo condition, it is inboard that described piston 2 leans against medicament storage cylinder bottom 1c, described piston 2 excircles and medicament storage cylinder cylindrical shell 1a inwall are slidably matched, be provided with the medicament delivery outlet 5 that is communicated with medicament chamber 3 and medicament and fill mouthfuls 15 on described medicament storage cylinder top cover 1b, 5 places are connected with check valve 14 at described medicament delivery outlet, described medicament chamber 3 is communicated with shower nozzle 6 by the road by check valve 14, be provided with passage 7 on described medicament storage cylinder bottom 1c, described gas generating unit is communicated with actuator chamber 4 by passage 7, fill liquid-state extinguishing agent or powder extinguishing agent in described medicament chamber 3.
wherein, described gas generating unit comprises aerogenesis chamber 11, be arranged on the gas generator 8 in aerogenesis chamber 11 and the control device 9 that is electrically connected to gas generator 8, and aerogenesis chamber 11 is passed through pressure-reducing valve 10 and is communicated with passage 7, described aerogenesis chamber 11 is arranged in medicament storage cylinder 1, before described aerogenesis chamber 11 comprises aerogenesis chamber cylindrical shell 11a and aerogenesis chamber, rear end cap 11b, 11c, described gas generator 8 is placed in aerogenesis chamber cylindrical shell 11a, described aerogenesis chamber cylindrical shell 11a is coaxial with medicament storage cylinder cylindrical shell 1a, described piston 2 endoporus and aerogenesis chamber cylindrical shell 11a excircle are slidably matched, before described aerogenesis chamber, rear end cap correspondence respectively is connected on medicament storage cylinder top cover 1b and medicament storage cylinder bottom 1c, be provided with the pipe joint 12 that is communicated with pressure-reducing valve 10 air inlets and the cable plug 13 that is used for being connected gas generator 8 and control device 9 on described aerogenesis chamber rear end cap 11c.
Wherein, be respectively arranged with sealing ring 16 between described piston 2 excircles and medicament storage cylinder cylindrical shell 1a inwall and between piston 2 endoporus and aerogenesis chamber cylindrical shell 11a excircle, mixing to prevent gas in actuator chamber and the medicament in the medicament chamber.Be provided with sealing ring 16 at described medicament storage cylinder cylindrical shell 1a and medicament storage cylinder top cover 1b and medicament storage cylinder bottom 1c junction, be provided with sealing ring 16 at described aerogenesis chamber cylindrical shell 11a and medicament storage cylinder top cover 1b and medicament storage cylinder bottom 1c junction, be provided with sealing ring 16 in described aerogenesis chamber cylindrical shell 11a and the forward and backward end cap 11b in aerogenesis chamber, 11c junction.
Embodiment 2: a kind of non-stored-pressure type piston pressurization automatic fire extinguisher, comprise medicament storage cylinder 1, be arranged on piston 2 and gas generating unit in medicament storage cylinder 1, described gas generating unit is arranged on outside medicament storage cylinder 1, and other structures are substantially the same manner as Example 1.
Operation principle of the present utility model: under servo condition, piston is in position as shown in Figure 1, and medicament is filled with liquid-state extinguishing agent or powder extinguishing agent in the chamber.After control device receives fire alarm signal; to gas generator output excitation voltage; make gas generator produce gases at high pressure; gases at high pressure enter piston right-hand member cavity after the pressure-reducing valve decompression; driven plunger is moved to the left; with the medicament in the medicament chamber through check valve and connecting line from shower nozzle directive protection zone, implement fire extinguishing.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.