CN202554790U - Bubble-atomized water-mist fire-distinguishing spray gun - Google Patents

Abstract

The utility model provides a bubble-atomized water-mist fire-distinguishing spray gun which is low in work pressure and low in atomizing medium consumption. The spray gun comprises a spray gun sleeve and an atomizing spray head, and is characterized by further comprising a liquid inlet, an air inlet and a liquid switch spring and the like. An air inlet pipe is parallel to a liquid inlet pipe. One end of the liquid inlet pipe is provided with the liquid inlet, and the liquid switch spring is arranged in the middle of the liquid inlet pipe. The other end of the liquid inlet pipe is provided with a liquid control plug, and a sealing rubber sleeve is fixed at the front end of the liquid control plug. Gas-liquid of the spray gun and consumption of the gas-liquid are little. The amount of the atomizing gas is much less than that of a traditional twin-fluid water-mist sprayer when achieving same atomizing effect and fire-distinguishing effect. When the spray gun is applied to a movable water-mist fire-distinguishing system, gross weight of the fire-distinguishing system is reduced, and the fire-distinguishing system is convenient and flexible to use. The bubble-atomized water-mist fire-distinguishing spray gun can be applied to a movable two-phase water-mist fire-distinguishing device, put out fires of class A, class B and class C at an initial stage, and achieve an aim of fast fire-distinguishing under low-pressure and water-saving conditions.

Description

Effervescent atomization fine mist fire-fighting spray gun

Technical field

The utility model relates to the fire fighting device technical field, a kind of fire extinguishing spray gun.

Background technology

Fire gun is an instrument important in the fire-fighting fire extinguishing, but existing application maximum be the two-fluid fine water fog spraying gun, this spray gun gas consumption is big, the DeGrain that under the condition of low pressure, low gas-liquid, atomizes, fire extinguishing weak effect.

Summary of the invention

The utility model improves water fog spraying gun based on the effervescent atomization principle to the two phase flow fine water mist fire-extinguishing system, has designed the effervescent atomization fine mist fire-fighting spray gun that a kind of operating pressure is low, the atomizing medium consumption is little; Comprise spray gun cover, fog-spray nozzle, it is characterized in that also comprising pipe, throttle orifice, mixing chamber in inlet, air inlet, liquid switch spring, liquid control plug, O-ring seal, switch sleeve, switch trigger, connecting rod, gas switch spring, gas control plug, the many skies, air inlet pipe is parallel with feed tube; Said feed tube one end is that inlet and middle part are provided with the liquid switch spring; The other end of said feed tube is provided with liquid control plug, and liquid control plug front end is fixed with seal rubber sleeve, and said liquid control plug front end, switch trigger and rod rear end are positioned at the switch sleeve; Connecting rod is positioned at liquid control plug front end; Be fixed with the switch trigger on the connecting rod, the connecting rod upside is provided with the air switch spring, and the connecting rod front end is connected with gas control plug; The gas control plug other end links to each other with porous inner tube; The porous inner tube front end links to each other with mixing chamber, and the throttle orifice of 6 2-3mm is set in the mixing chamber, and the mixing chamber other end links to each other with fog-spray nozzle.

The beneficial effect of the utility model is: compare with traditional double fluid fine water fog spraying gun; The gas liquid ratio of the utility model is less; Energy consumption is little, and when reaching identical atomizing effect and putting out a fire effect, required atomization gas total amount is much smaller than traditional double fluid fine mist spray head; Can reduce the gross mass of system when being applied to portable fine water mist fire-extinguishing system simultaneously, system is easy to use flexibly.Compare with the single fluid fine water fog spraying gun, the utility model spray gun operating pressure can need not used high-pressure pump than low more than 10 times of common single fluid atomizer, can improve the security of system coefficient, helps reducing system cost.The utility model utilizes water and gas (CO based on the effervescent atomization principle ₂Or compressed air) medium mixes in mixing chamber, forms even bubble flow, finally forms thin water smoke by gas, water mixed liquid by the shower nozzle ejection, utilizes this atomizing type can under the low pressure condition, obtain to have 1 grade of thin water smoke of good fire extinguishing effect.The utility model can be used for portable two phase fine mist fire-fightings equipment, and the A that effectively puts out a fire to save life and property, B, E class are issued to the purpose of quick extinguishing from the beginning of fire in the condition of low pressure, water-saving.

Description of drawings

Fig. 1 is the utility model overall structure sketch map.

The specific embodiment

Below in conjunction with shown in Figure 1 the utility model is further specified

Water for fire extinguishing gets into spray gun through inlet 1, and inlet pressure is at 0.7-0.8MPa; Gas medium gets into spray gun through air inlet 2, and inlet pressure is 0.8-0.9MPa.Pull Switch of spray pistol trigger 8, move horizontally at the effect lower link 9 of trigger, connecting rod drives 12 motions to the left of gas control plug, opens gas passage; On the other hand, fluid path is opened in connecting rod 9 compressing liquid control plug motions to the left.After gas, water passage are opened; Two media warp path separately respectively gets into mixing chamber 15, in mixing chamber, forms uniform bubble flow, at last by nozzle 16 ejections; The air water mixed liquor sprays back increase owing to inside and outside differential pressure in extremely short distance; Bubble sharply expands until " blast " fragmentation, and water droplet further is broken for the thinner thin water smoke of particle diameter, implements effectively fire extinguishing.

Have 5-7 row on the tube wall of porous inner tube 13, four apertures of every row, aperture 1-1.5mm, the setting of aperture can guarantee that atomization gas injects water uniformly, forms two phase bubble flows.The throttle orifice 14 of 6 2-3mm is set, to guarantee the pressure in the mixing chamber and to prevent that the excessive liquid that causes of air pressure from refluxing in the mixing chamber.Fog-spray nozzle 16, spout is offered at the top, and atomizing angle as required can be offered a plurality of spouts, evenly distributes around the center, also can increase spout at the center, and nozzle diameter is 1.0mm～1.5mm.O-ring seal 6 guarantees the sealing of spray gun.

Claims (1)

1. effervescent atomization fine mist fire-fighting spray gun; Spray gun cover (3), fog-spray nozzle (16); It is characterized in that also comprising inlet (1), air inlet (2), liquid switch spring (4), liquid control plug (5), O-ring seal (6), switch sleeve (7), switch trigger (8), connecting rod (9), gas switch spring (11), gas control plug (12), many empty in pipe (13), throttle orifice (14), mixing chamber (15); Air inlet pipe is parallel with feed tube, and said feed tube one end is that inlet (1) and middle part are provided with liquid switch spring (4), and the other end of said feed tube is provided with liquid control plug (5); Liquid control plug (5) front end is fixed with seal rubber sleeve (6); Said liquid control plug (5) front end, switch trigger (8) and connecting rod (9) rear end are positioned at switch sleeve (7), and connecting rod (9) is positioned at liquid control plug (5) front end, is fixed with switch trigger (8) on the connecting rod (9); Connecting rod (9) upside is provided with air switch spring (11); Connecting rod (9) front end is connected with gas control plug (12), and gas control plug (12) other end links to each other with porous inner tube (13), and porous inner tube (13) front end links to each other with mixing chamber (15); The throttle orifice (14) of 6 2-3mm is set in the mixing chamber (15), and mixing chamber (15) other end links to each other with fog-spray nozzle (16).

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