CN201815032U - Portable fire extinguishing system with low resistance, two-phase flow and fine water mist - Google Patents
Portable fire extinguishing system with low resistance, two-phase flow and fine water mist Download PDFInfo
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- CN201815032U CN201815032U CN2010205101415U CN201020510141U CN201815032U CN 201815032 U CN201815032 U CN 201815032U CN 2010205101415 U CN2010205101415 U CN 2010205101415U CN 201020510141 U CN201020510141 U CN 201020510141U CN 201815032 U CN201815032 U CN 201815032U
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Abstract
The utility model discloses a portable fire extinguishing system with low resistance, two-phase flow and fine water mist, which belongs to the technical field of fire fighting. The technical problem to be solved by the utility model is as follows: a fire extinguishing device in the prior art can not realize long-range atomization fire extinguishment with low power consumption. The portable fire extinguishing system with low resistance, two-phase flow and fine water mist comprises a water storage bottle (3) and a gas-water mixer (4) communicated with the water storage bottle (3), wherein a gas inlet pipeline (44) of the gas-water mixer (4) is communicated with a gas source, and a gas-water outlet pipeline (41) is communicated with a spray gun (5). A gas-liquid channel of the fire extinguishing device adopts the form of a low-resistance smooth flow passage. The power consumed by a fire extinguisher is 29% of that of similar products with the same range. The portable fire extinguishing system can be widely used in A type, B type and electrical fire disasters.
Description
Technical field
The utility model belongs to the fire prevention field, relates in particular to a kind of two-phase gas water mist fire extinguisher field.
Background technology
Current fire prevention field, making in the scene of fire fire-fights by water is environmental protection, in order further to improve the way that fire-fighting efficiency adopts water atomization at present, fire-fighting efficiency can be become hundred times raising.This is that fogdrop diameter is very little after being atomized because of water, the water of same relatively volume, and its surface area increases severely, thereby has strengthened the usefulness of heat exchange, has played extraordinary cooling-down effect.Be vaporized rapidly after thin water smoke absorbs heat, make volume sharply expand, reach more than 1700 times usually, thereby reduced airborne oxygen concentration, suppressed the speed of aflame oxidation reaction, played the effect that suffocates.In addition, because the heat of vaporization of water is 530 times of specific heat, so the heat that gasification is taken away is very big, has reduced the temperature of ignition point.
At present water spray installation mainly contains two types: a class is the single-phase flow fine water mist fire-extinguishing system, and its atomizing power is mainly from the high pressure of water; Another kind of is the two phase flow fine water mist fire-extinguishing system, and its atomizing power comes from the pressure of water and the pressure of gas.Existing fine water mist fire-extinguishing system can be divided into low-pressure system (less than 1.21MPa), medium voltage network (1.21Mpa-3.45Mpa) and high-pressure system (greater than 3.45MPa) by operating pressure.High-pressure system can obtain the more water smoke of fine particle, but pressure when high the pressure vessel wall thickness increase, quality is than middle low-pressure system height, high-pressure system is fit to fixed system, is not easy to the flexible needs of fire-fighting actual combat.And middle low-pressure system pressure is low, light weight, and cost is low, be fit to portable or backpack is used, but existing mesolow water mist system or flow is little, otherwise particle diameter is thick, therefore, develop a kind of portable mesolow superfine spray fire extinguisher and become the most important technical problem in this area.
Chinese patent CN201055627Y discloses a kind of portable type superfine gas-water mist extinguishers.This fire extinguisher employing appendix and two pipelines of water-supply-pipe all are connected to the structure on the spray gun, spray gun inside comprises an effervescent atomizer, this effervescent atomizer is used for compressed gas being mixed with current and atomizing, for increasing the range of this fire extinguisher, increased spray column between atomizer and change spray shapes mechanism, atomization gas sprays from the spout that becomes spray shapes mechanism after passing spray column.There is following defective in this fire extinguisher: when atomization gas process spray column, because spray column has certain length, can change into by spray pattern during according to atomization gas and to contain the aqueous water that is dissolved with gas via spray column, promptly the spout ejection through becoming spray shapes mechanism is gas-vapor mix, but not the atomization gas that effervescent atomizer forms, so be provided with in the spray gun atomizer to the mist of ejection without any effect.In addition, water enters effervescent atomizer through the liquid-inlet of spray gun, the water quarter bend of need flowing through, so the energy loss of water is bigger, influences the range of mist.In addition, water and gas enter spray gun via pipeline separately, and for portable spray equipment, complex structure is not easy to the fire fighter and bears.
CN201469945U discloses a kind of multi-functional backpack extinguishing device, aims to provide a kind of dissimilar foams that spray, and simultaneously, during injection, can carry out the extinguishing device that switches at any time of water and foam according to the fire extinguishing needs.Be provided with concentrated tank in the first water pot inside, air admission hole with the first water pot internal communication is arranged in the lower end of concentrated tank seal cover, concentrated tank is by the foam solution dosing hole, the foam pipeline, foam solution opens and closes valve and is communicated with the foam solution import of gas-water mixer, the delivery port of first water pot is connected by the water inlet of pipeline with second water pot, the delivery port of second water pot is connected with the water inlet of gas-water mixer by pipeline, gas cylinder is connected with the air inlet of pressure-regulating valve, a gas outlet of pressure-regulating valve is connected with first water pot by pipeline, another gas outlet of pressure-regulating valve is connected with the air inlet of air flow proving switch valve with the air water gaseous mixture by pipeline, and the outlet of gas-water mixer is connected with spray gun by water pipe.When making separately when fire-fighting by water, close foam solution open and close valve and air flow proving switch valve, gases at high pressure enter in first water pot, and hydraulic pressure is gone in second water pot, and water under high pressure forms single-phase flow through gas-water mixer, water pipe and sprays from second water pot.When needs use the class A foam fire extinguishing, need to use a large amount of air tonifying Qi, open air flow proving switch valve and foam solution open and close valve, a large amount of other, foam solution and water mix the back and spray by spray gun in gas-water mixer.When needs use the category-B foam fire-fighting, open the foam solution open and close valve, close the air flow proving switch valve, foam solution and water enter respectively in the gas-water mixer, mix the back and spray by spray gun.This extinguishing device is the front end that gas-water mixer is arranged on hydraulic giant, the pipeline that is connected with hydraulic giant has only one, though compare with traditional portable fire-extinguishing apparatus and to have reduced by a pipeline, but have following defective: it is that water is directly sprayed the formation single-phase flow that such fire extinguisher makes when fire-fighting by water, the pressure that needs under the identical range is higher than the pressure of two phase flow mist fire extinguisher far away, therefore bucket wall needs thickening, equipment heaviness.
CN20112807Y discloses a kind of two phase flow mixing jet bubbler, comprising: gun barrel, trigger valve, gas cylinder, hold liquid or powder bottle, wherein: described trigger valve is the interstage valve that is made of air valve, liquid powder valve and trigger; During work, at first, trigger overcomes spring pressure and draws air valve stem outward, makes the air valve plug leave gas outlet on the air valve cover end face, and gas will be entered by the air admission hole that air valve overlaps the side, enters hybrid chamber by the gas outlet of air valve cover end face.High-speed air flow flows through from the centre bore of atomizing cover, and forms negative pressure in centre bore.Then, trigger overcomes in the pressure of spring and pushes away described valve rod, make the valve opening of valve plug on lifting off a seat, liquid (powder) body will enter hybrid chamber by the liquid powder through hole of valve body, fill and be distributed in atomizing cover periphery, and under the effect of centre bore negative pressure, enter centre bore by a plurality of staggered through holes, and under the effect of high velocity air, be atomized into for the first time tiny liquid (powder) and drip, bump was located at the atomizer generation secondary-atomizing of muzzle when described primary atomization liquid (powder) dripped via the gun barrel mouth of pipe, form the water mean particle dia less than thin atomized water spray go out.Although this device can form the particle of mean particle dia less than 200 μ m under 7.5-11bar pressure, this injection apparatus is owing to carry out secondary-atomizing at the muzzle place, and range is lower.
A kind of two phase flow atomization fire extinguishing equipment has newly appearred in the market, it adopts gas to mix in the blender that is arranged on before entering spray gun with water, blender and spray gun are by a pipeline connection, wherein gas and the water path that enters blender is seen shown in Figure 4, gases at high pressure enter from the B mouth, and water enters from the A mouth.Because the relative liquid viscosity coefficient of gas is little, under uniform pressure, gases at high pressure are earlier by this blender, but gas flow is one 90 degree turning form, it is bigger that flowing gas is subjected to resistance, speed reduces, by Bernoulli equation as can be known, and speed lower pressure height, it is low that speed exceeds pressure, in air water mixing place, pressure raises, and is unfavorable for the hydraulic pressure at water receiver place is gone out like this.Very big in order to obtain the required air pressure of same range like this.Needing gas outlet pressure for the situation of range 15m is 34bar.Therefore the bucket wall of this fire-extinguishing apparatus needs thickening, and equipment is heavy, needs to expend bigger muscle power in use.
The utility model content
Technical problem to be solved in the utility model is that two phase flow fine spray extinguisher of the prior art required air pressure under same range is bigger, causes the problem of equipment heaviness, and then a kind of extinguishing device that can realize the low pressure wide range is provided.
Based on the problems referred to above, the utility model provides a kind of portable lower resistance two phase flow fine water mist fire-extinguishing system, comprise water storage bottle and the gas-water mixer that is connected with the water storage bottle, the admission line of described gas-water mixer is communicated with source of the gas, and the air water outlet conduit is communicated with spray gun.
The described admission line of described gas-water mixer and described air water outlet conduit are connected and form the level and smooth runner of lower resistance, described source of the gas enters the level and smooth runner of described gas-water mixer through admission line, and with the water mixing formation air-water mixture that enters in the described gas-water mixer, described air-water mixture flows out described gas-water mixer and straight-through entering in the described spray gun through described air water outlet conduit, sprays described air-water mixture by described spray gun.
Described gas-water mixer places the top of described water storage bottle, and described inlet channel is communicated with the outlet conduit of described water storage bottle.
Described gas-water mixer is provided with flow controller, and described flow controller places the position that is connected with described admission line and inlet channel in the level and smooth runner of described gas-water mixer;
Described flow controller is the hollow circuit cylinder body structure, is distributed with a plurality of openings on the hollow cylinder, and described opening is the little funnel-form of imperial palace outside cylinder directly upwards is; The inner opening gross area of described flow controller is less than the caliber area of described inlet channel.
Described admission line is made up of admission line cover and replaceable adjusting interface, and the runner that described replaceable adjusting interface places described admission line to overlap is interior and be threaded with it; One end of described admission line cover is threaded with the housing of described gas-water mixer, and the other end is connected with described source of the gas by pipeline.
Described spray gun comprises housing, places the trigger valve in the housing and is used to control the trigger that trigger valve is opened; One end of described trigger valve is communicated with the air water outlet conduit of described gas-water mixer, and the other end is communicated with lance tube.
Described trigger valve comprises valve body, places the gentle water out of air water import at valve body two ends respectively, described valve inner is provided with mobilizable hollow valve stem, one end of described hollow valve stem is enclosed within the described air water import, the other end is provided with the cone connecting plate that is connected with the circular cone that is used to cut-off the air-water mixture runner, and described centrum connecting plate is provided with the runner hole of air-water mixture;
Described hollow valve stem internal sleeve is provided with spring, pushes described circular cone to valve outlet place by spring described air water import is separated with the air water outlet;
When pulling trigger, described hollow valve stem moves in valve pocket, driving circular cone separates with valve outlet, make described air water import be connected with the air water outlet, air-water mixture through after the described air water import through the level and smooth runner of the lower resistance described hollow valve stem inside of flowing through, by described runner hole from described circular cone surface through after, after described air water outlet flows into described lance tube, spray.
The utility model comprises gas cylinder and the pressure-reducing valve that is connected with gas cylinder, gases at high pressure in the described gas cylinder reduce pressure the back as source of the gas by pressure-reducing valve, the one tunnel straight-through level and smooth runner of lower resistance that enters described gas-water mixer, another road enter in the described water storage bottle hydraulic pressure to described gas-water mixer.
The utility model also comprises an air respiratorresuscitator gas cylinder, and described air respiratorresuscitator gas cylinder is communicated with described gas cylinder, is communicated with the air respiratorresuscitator face shield through described pressure-reducing valve decompression back.
The utlity model has following advantage:
The utility model gas-water mixer adopts the level and smooth runner form of lower resistance, so gas resistance when entering gas-water mixer is very little, has farthest reduced the energy consumption in the gas communication process; Because coming to perpendicular to described gas-water mixer of water, so water enters behind the gas-water mixer with mobile fast pressed gas and mixes, and flows into spray gun fast under the drive of gases at high pressure, sprays via spray gun.As seen, the energy loss of air-water mixture is very little before ejection.
For accurately controlling the gas-water ratio in the air-water mixture, and the local resistance of reduction fluid, flow controller in the utility model gas-water mixer adopts the hollow circuit cylinder body structure, and on cylinder, be provided with a plurality of openings, opening is the little funnel-form of imperial palace outside cylinder directly upwards is, when press water flows into gas-water mixer like this is to enter along an inclined-plane, has further reduced local resistance, thereby it is higher to enter the energy of water of gas-water mixer.Simultaneously, the air inlet area of adjustable air intake pipeline has determined the inflow and the air inflow of fire extinguisher on the inner opening gross area on the flow controller and the gas-water mixer, thereby has obtained the utility model gas-water ratio.Gas-water ratio that the utility model is suitable and reasonable structure form make this fire extinguisher realize the wide range of 15-17m under the situation that is pressed in 8-10bar of working off one's feeling vent one's spleen, and fogging degree has been reached at maximum range place atomized particles diameter less than 200 μ m.
For increasing the range of thin water smoke, utility model people of the present utility model also improves existing spray gun, make air-water mixture in spray gun through a level and smooth runner of lower resistance, after having passed through a circular cone that is fairing, the air water exit sprays through gun barrel, there are not 90 degree turnings, thereby compare with existing spray gun, reduced the local resistance of air-water mixture in spray gun inside, further kept the energy of air-water mixture.
Experimental results show that, when adopting above-mentioned design of the present utility model, when the source of the gas output pressure is 10bar, the range of thin water smoke is 17m, and the two phase flow atomization fire extinguishing equipment of describing in the background technology is when pressure is 34bar, its range only has 15m, so when identical range, the required pressure of the equipment that greatly reduces.Thereby the water storage bottle that the utility model uses need not thickening, alleviated the weight of fire-extinguishing apparatus.
In addition, two phase flow fine water mist fire-extinguishing system of the present utility model has only a pipeline between gas-water mixer and spray gun, compares with existing similar fire-extinguishing apparatus, has reduced by a pipeline, makes equipment simpler, more convenient operation.
Further, two phase flow fine water mist fire-extinguishing system of the present utility model has two bottle stands, one of them can be put for the gas cylinder of breathing, and the outlet air pressure of the utility model extinguishing device is 10bar, thereby the output of the utility model gas cylinder can a shared pressure reducer with air respiratorresuscitator.
Description of drawings
Figure 1 shows that portable lower resistance two phase flow fine water mist fire-extinguishing system schematic diagram;
Figure 2 shows that the gas-water mixer structure chart;
Figure 3 shows that the sectional view of open flume type flow controller;
Figure 4 shows that the gas-water mixer schematic diagram;
Figure 5 shows that spray gun trigger valve arrangement figure;
Figure 6 shows that down the portable lower resistance two phase flow of water flowing out structure fine water mist fire-extinguishing system schematic diagram;
Figure 7 shows that the portable lower resistance two phase flow fine water mist fire-extinguishing system schematic diagram that has two gas cylinders.
Number in the figure is described as follows:
1-gas cylinder 1 '-air respiratorresuscitator gas cylinder 2-pressure-reducing valve 3-water storage bottle 4-gas-water mixer
5-spray gun 6-air respiratorresuscitator face shield
41-air water outlet conduit 42-housing 43-flow controller 44-admission line 45-inlet channel
The replaceable adjusting interface of 441-442-admission line cover
51-housing 52-lance tube 53-trigger valve 54-trigger
531-air water import 532-valve body 533-spring 534-hollow valve stem 535-circular cone
536-air water outlet 537-cone connecting plate 538-runner hole
The specific embodiment
Below with reference to accompanying drawing, use following examples that the utility model is further set forth.
Figure 1 shows that portable lower resistance two phase flow fine spray extinguisher, comprise gas cylinder 1, pressure-reducing valve 2, water storage bottle 3, gas-water mixer 4, spray gun 5 and air respiratorresuscitator face shield 6.Described gas cylinder 1 is connected to pressure-reducing valve 2 by pipeline, and pressure-reducing valve is exported one road admission line 44, a tunnel that is connected to gas-water mixer 4 and is connected with water storage bottle 3, and another road connects air respiratorresuscitator face shield 6 by pipeline.Water storage bottle delivery port is communicated with the inlet channel 45 of gas-water mixer 4, mixes the back through gas-water mixer 4 and is connected with spray gun 5 by pipeline.Gas-water mixer 4 places the top of described water storage bottle 3, and spray gun 5 comprises housing 51, places the trigger valve 53 in the housing, lance tube 52 and the trigger 54 that is used to control the trigger valve unlatching.Described trigger 54 and trigger valve 53 connect and compose linkage, the break-make of the interior air water runner of control trigger valve 53 by connecting rod.
Figure 2 shows that the internal structure of gas-water mixer 4, described gas-water mixer comprises inlet channel 45, admission line 44, flow controller 43, housing 42 gentle water outs 41, described flow controller 43 adopts the hollow circuit cylinder body structure, places the position that is connected with described admission line 44 and inlet channel 45 in the level and smooth runner of described gas-water mixer 4; Have several little openings of imperial palace outside it directly makes progress on the cylinder of flow controller 43, the water of inlet channel 45 enters enclosure interior through the opening on flow controller 43 cylinders, and mixes with the gas that enters admission line 44.Above-mentioned adjustable air intake pipeline 44 is made up of admission line cover 442 and replaceable adjusting interface 441, described admission line overlap 442 with replaceable adjusting interface 441 by being threaded.Replaceable adjusting interface 441 by the transposing different inner diameters during application can obtain different gas flows.
Fig. 3 is the flow controller 43 of fluting, by the sectional view of this flow controller 43 as can be seen, the notch of described flow controller 43 adopts a kind of little makeup of the imports of outer imperial palace that the liquid levelling is slipped over cross, can reduce liquid flowing resistance, regulate entering into gas-water mixer 4 fluid floies simultaneously.Like this, in actual application,, obtain different gas liquid ratios, guarantee the atomizing effect of fire extinguisher by changing different replaceable adjusting interface 441 and flow controller 43.
Figure 4 shows that the schematic diagram of gas-water mixer 4, described gas-water mixer 4 adopts T type structures, and air inlet A leads directly to air water outlet C.Can know that by Bernoulli equation flow velocity eminence pressure is low in the fluid, flow velocity lower pressure height.This structure can make gas pass through under the situation of extremely low resistance, and is so flow velocity is very high, very low at air water interface pressure.The liquid at inlet B place easier being forced out under the situation of High Pressure Difference like this; Realized under the lower situation of pressure-reducing valve 2 outlet pressures, exported the air water mixed liquor of high flow capacity high flow rate, guaranteed the wide range of extinguishing device.
Figure 5 shows that the trigger valve 53 that places spray gun 5 inside, described trigger valve 53 comprises valve body 532, places the air water import 531 gentle water outs 536 at valve body 532 two ends respectively, described valve body 532 inside are provided with mobilizable hollow valve stem 534, one end of described hollow valve stem 534 is communicated with described air water import 531, the other end is provided with the cone connecting plate 537 that is connected with the circular cone 535 that is used to cut-off the air-water mixture runner, and described cone connecting plate 537 is provided with the runner hole 538 of air-water mixture.
Described hollow valve stem 534 internal sleeve are provided with spring 533, and 533 extruding described circular cone 535 to valve outlet places make described air water import 531 separate with air water outlet 536 by spring.
When pulling trigger 54, described hollow valve stem 534 is moved to the left in valve pocket, driving circular cone 535 separates with valve outlet, make described air water import 531 be connected with air water outlet 536, air-water mixture through after the described air water import 531 through the level and smooth runner of lower resistance described hollow valve stem 534 inside of flowing through, by described runner hole 538 from described circular cone 535 surfaces through after, flow into described lance tube 52 back through described air water outlet 536 and spray.Water column constantly is subjected to the effect of peeling off of air, all changes into water smoke in distal-most end.
The portable lower resistance two phase flow fine water mist fire-extinguishing system of this upper water-out structure, high pressure gas arrive earlier gun slot, can realize that air feed pressure-reducing valve output pressure is that maximum jet length reaches 17m under the condition of 0.8-1MPa.
Embodiment 2
The portable lower resistance two phase flow fine water mist fire-extinguishing system of following water flowing out structure as shown in Figure 6, gas-water mixer 4 places the below of described water storage bottle 3, when using this fire extinguisher work, pull spray gun trigger 54, trigger valve 53 is opened, the gas of this gas cylinder 1 is input in the pressure-reducing valve 2 by pipeline, gases at high pressure are divided into three the tunnel after pressure-reducing valve 2 decompressions, the pipeline of leading up to directly enters gas-water mixer 4, one road gas enters water storage bottle 3 by pipeline, and another road connects air respiratorresuscitator face shield 6 by pipeline.Water in the water storage bottle 3 is pressed in the gas-water mixer 4 by gases at high pressure; Through behind the gas-water mixer, enter spray gun 5 back ejections through a flexible pipe.The portable lower resistance two phase flow fine water mist fire-extinguishing system of this time water flowing out structure, water under high pressure arrive earlier gun slot, can realize that air feed pressure reducer output pressure is that jet length reaches 15m under the condition of 0.8-1MPa.
The portable lower resistance two phase flow fine water mist fire-extinguishing system that has two gas cylinders as shown in Figure 7, this system comprises that a gas cylinder 1 and one can be for the air respiratorresuscitator gas cylinders 1 ' of respirator use.After two gas cylinders connected by pipeline, the output gases at high pressure were divided into three the tunnel after reducing pressure by pressure-reducing valve 2, and the pipeline of leading up to directly enters gas-water mixer 4, and one road gas enters water storage bottle 3 by pipeline, and another road connects air respiratorresuscitator face shield 6 by pipeline.Water in the water storage bottle 3 is pressed in the gas-water mixer 4 by gases at high pressure; Through behind the gas-water mixer, enter spray gun 5 back ejections through a flexible pipe.
Though the utility model elaborates it by the specific embodiment; but; those skilled in the art should be understood that; the any form of being made on this basis that does not exceed the claim protection domain and the variation of details all belong to the claimed scope of the utility model.
Claims (9)
1. portable lower resistance two phase flow fine water mist fire-extinguishing system, comprise water storage bottle (3) and the gas-water mixer (4) that is connected with water storage bottle (3), the admission line (44) of described gas-water mixer (4) is communicated with source of the gas, and air water outlet conduit (41) is communicated with spray gun (5), it is characterized in that:
The described admission line (44) of described gas-water mixer (4) and described air water outlet conduit (41) are connected and form the level and smooth runner of lower resistance, described source of the gas enters the level and smooth runner of described gas-water mixer (4) through admission line (44), and with the water mixing formation air-water mixture that enters in the described gas-water mixer (4), described air-water mixture flows out described gas-water mixer (4) and straight-through entering in the described spray gun (5) through described air water outlet conduit (41), sprays described air-water mixture by described spray gun (5).
2. portable lower resistance two phase flow fine water mist fire-extinguishing system according to claim 1 is characterized in that:
Described gas-water mixer (4) places the top of described water storage bottle (3), and described inlet channel (45) is communicated with the outlet conduit of described water storage bottle (3).
3. portable lower resistance two phase flow fine water mist fire-extinguishing system according to claim 2 is characterized in that:
Described gas-water mixer (4) is provided with flow controller (43), and described flow controller (43) places the position that is connected with described admission line (44) and inlet channel (45) in the level and smooth runner of described gas-water mixer (4).
4. portable lower resistance two phase flow fine water mist fire-extinguishing system according to claim 3 is characterized in that:
Described flow controller (43) is the hollow circuit cylinder body structure, is distributed with a plurality of openings on the hollow cylinder, and described opening is the little funnel-form of imperial palace outside cylinder directly upwards is;
The inner opening gross area of described flow controller (43) is less than the caliber area of described inlet channel (45).
5. portable lower resistance two phase flow fine water mist fire-extinguishing system according to claim 1 is characterized in that:
Described admission line (44) is made up of an admission line cover (442) and replaceable adjusting interface (441), and described replaceable adjusting interface (441) places in the runner of described admission line cover (442) and with its connection; One end of described admission line cover (442) is threaded with the housing of described gas-water mixer (43), and the other end is connected with described source of the gas by pipeline.
6. portable lower resistance two phase flow fine water mist fire-extinguishing system according to claim 1 is characterized in that:
Described spray gun comprises housing (51), places the trigger valve (53) in the housing and is used to control the trigger (54) that trigger valve is opened;
One end of described trigger valve (53) is communicated with the air water outlet conduit (41) of described gas-water mixer (4), and the other end is communicated with lance tube (52).
7. according to claim 6 described portable lower resistance two phase flow fine water mist fire-extinguishing systems, it is characterized in that:
Described trigger valve (53) comprises valve body (532), places the gentle water out of air water import (531) (536) at valve body (532) two ends respectively, described valve body (532) inside is provided with mobilizable hollow valve stem (534), one end of described hollow valve stem (534) is enclosed within the described air water import (531), the other end is provided with the cone connecting plate (537) that is connected with the circular cone that is used to cut-off the air-water mixture runner (535), and described cone connecting plate (537) is provided with the runner hole (538) of air-water mixture;
Described hollow valve stem (534) internal sleeve is provided with spring (533), pushes described circular cone (535) to valve outlet place by spring (533) described air water import (531) is separated with air water outlet (536);
When pulling trigger (54), described hollow valve stem (534) moves in valve pocket, driving circular cone (535) separates with valve outlet, make described air water import (531) be connected with air water outlet (536), air-water mixture through described air water import (531) after through the level and smooth runner of lower resistance described hollow valve stem (534) inside of flowing through, by described runner hole (538) from described circular cone (535) surface through after, the back sprays to flow into described lance tube (52) through described air water outlet (536).
8. according to the arbitrary described portable lower resistance two phase flow fine water mist fire-extinguishing system of claim 1-7, it is characterized in that:
Comprise gas cylinder (1) and the pressure-reducing valve (2) that is connected with gas cylinder (1), gases at high pressure in the described gas cylinder (1) reduce pressure the back as source of the gas by pressure-reducing valve (2), the one tunnel straight-through level and smooth runner of lower resistance that enters described gas-water mixer (4), another road enter in the described water storage bottle (3) hydraulic pressure to described gas-water mixer (4).
9. portable lower resistance two phase flow fine water mist fire-extinguishing system according to claim 8 is characterized in that:
Also comprise an air respiratorresuscitator gas cylinder (1 '), described air respiratorresuscitator gas cylinder (1 ') is communicated with described gas cylinder (1), is communicated with air respiratorresuscitator face shield (6) through described pressure-reducing valve (2) decompression back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205101415U CN201815032U (en) | 2010-08-30 | 2010-08-30 | Portable fire extinguishing system with low resistance, two-phase flow and fine water mist |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205101415U CN201815032U (en) | 2010-08-30 | 2010-08-30 | Portable fire extinguishing system with low resistance, two-phase flow and fine water mist |
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| CN201815032U true CN201815032U (en) | 2011-05-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940826A (en) * | 2010-08-30 | 2011-01-12 | 北京惟泰安全设备有限公司 | Portable low-resistance two-phase flow water mist fire extinguishing system |
| CN105927755A (en) * | 2016-06-02 | 2016-09-07 | 沈阳二三电子科技有限公司 | Gas-water atomization mixing valve assembly with damping back pressure and control method |
| CN106807003A (en) * | 2017-03-10 | 2017-06-09 | 北京惟泰安全设备有限公司 | Battery compartment fire extinguishing system and new-energy automobile |
-
2010
- 2010-08-30 CN CN2010205101415U patent/CN201815032U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940826A (en) * | 2010-08-30 | 2011-01-12 | 北京惟泰安全设备有限公司 | Portable low-resistance two-phase flow water mist fire extinguishing system |
| CN101940826B (en) * | 2010-08-30 | 2012-08-22 | 北京惟泰安全设备有限公司 | Portable low-resistance two-phase flow water mist fire extinguishing system |
| CN105927755A (en) * | 2016-06-02 | 2016-09-07 | 沈阳二三电子科技有限公司 | Gas-water atomization mixing valve assembly with damping back pressure and control method |
| CN105927755B (en) * | 2016-06-02 | 2018-04-24 | 沈阳二一三电子科技有限公司 | Air water atomization mixing valve module and control method with damping back pressure |
| CN106807003A (en) * | 2017-03-10 | 2017-06-09 | 北京惟泰安全设备有限公司 | Battery compartment fire extinguishing system and new-energy automobile |
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