CN201552080U

CN201552080U - Fine water mist spraying gun

Info

Publication number: CN201552080U
Application number: CN2009200962468U
Authority: CN
Inventors: 马其诚
Original assignee: Tianjin Timelyrain Industry & Trading Co ltd
Current assignee: Tianjin Terry appeal Equipment Co., Ltd.
Priority date: 2009-04-10
Filing date: 2009-04-10
Publication date: 2010-08-18
Anticipated expiration: 2019-04-10

Abstract

The utility model discloses a fine water mist spraying gun which comprises a spraying gun handle. A direct-flow/water mist conversion valve, a direct-flow foam spraying channel and a water mist spraying head are sequentially connected with the spraying gun handle; a positioning shaft is arranged between the direct-flow foam spraying channel and the water mist spraying head; the direct-flow foam spraying channel is composed of a direct-flow stabilizing cavity, an air inlet, a flow mixing cavity and a direct-flow foam spout; the water mist spraying head is composed of a rotational-flow water channel, at least one atomizing nozzle, a rotational-flow water inlet, a rotational-flow chamber, an axial-flow water inlet and a water mist nozzle; and the direct-flow/water mist conversion valve controls the opening or closing of the water mist spraying head or the direct-flow foam spraying channel. The fine water mist spraying gun can generate fine water mist with the granularity of smaller than 400mum under the action of water with the pressure of 10 to 35bar, and spray out the fine water mist through the water mist spraying head or spray out direct-flow foam through the direct-flow foam spraying channel. In addition, the fine water mist spraying gun can be used not only for fire extinguishing operation, but also for the operation of spraying decontamination liquid in a large area.

Description

Fine water fog spraying gun

Technical field

The utility model belongs to the spray gun of fire extinguishing and rescue aid, and it can be the spray gun of the thin water smoke below the 400 μ m producing granularity under 10～35bar pressure water action.It can be used for the operation of putting out a fire, and also can be used for the operation that large tracts of land is sprayed decontamination liquid.

Background technology

Along with the continuous progress of society, the seriousness of fire fighting problem is more and more by popular cognition.The disaster that fire brings for people's property is divided into two parts: one is the loss of fire itself; Its two, be the secondary disaster that fire extinguishing procedure produces.What fire took place itself is known by people to the disaster that people bring, the secondary disaster that fire extinguishing procedure produces, be included in the object that do not burnt in the fire extinguishing procedure serious by water retting; The water that surrounding environment is contained foam in a large number pollutes and has consumed the extensive concern that a large amount of precious water resource etc. is causing people.What the utility model was involved is exactly a kind of fine water fog spraying gun efficiently, and he can avoid water damage in high-effect fire-extinguishing.

Summary of the invention

Main purpose of the present utility model be in, the low pressure water spray installation provides one can produce fine water fog spraying gun.

The technical scheme that the utility model solves usefulness that this technical problem is led is as follows: comprise spray gun handle, direct current/water smoke switching valve, waterfog head, locating shaft, direct current current stabilization chamber, air inlet, mixed flow chamber and direct current applicator; Described waterfog head is made up of described eddy flow water channel, atomizer, eddy flow water inlet, spin chamber, axial flow water inlet and hydraulic spray nozzle, and the quantity of described atomizer is at least 1; Realize the injection of thin water smoke or direct current foam through the direct current/evolution of water smoke switching valve.The advantage that the utlity model has is: flexible and convenient operation, through simple variation can realize thin water smoke and direct current foam jet conversion, change the physical dimension of nozzle and water smoke particle diameter, the jet length of water smoke and the flow of injection that quantity just can change ejection, the water smoke haze diameter of ejection is big, can effectively intercept the heat radiation in the scene of a fire, the fire-fighting efficiency of water smoke will exceed traditional fire-fighting mode, water loss is far below traditional fire-fighting mode, so the water damage of having avoided fire extinguishing procedure to cause.

Description of drawings

Fig. 1-the 1st, the thin atomized water spray state diagram of the utility model;

Fig. 1-2 rotates the end of water channel 5 to figure shown in Fig. 1-1;

Fig. 1-the 3rd, the enlarged drawing of atomizer position shown in Fig. 1-1;

Fig. 2 is the state diagram of the utility model direct current foam jet.

Description of reference numerals in the Figure of description: 1-spray gun handle, 2-direct current/water smoke switching valve, 3-waterfog head, the 4-locating shaft, 5-eddy flow water channel, 6-atomizer, 7-eddy flow water inlet, the 8-spin chamber, 9-axial flow water inlet, 10-hydraulic spray nozzle, 11-direct current current stabilization chamber, the 12-air inlet, 13-mixed flow chamber, 14-direct current applicator.

Specific embodiments

With reference to accompanying drawing the utility model is described in further detail.

As Figure 1-1, the structure of the utility model fine water fog spraying gun is: comprise spray gun handle 1, direct current/water smoke switching valve 2, waterfog head 3, locating shaft 4, direct current current stabilization chamber 11, air inlet 12, mixed flow chamber 13 and direct current applicator 14; Described waterfog head 3 is made up of described eddy flow water channel 5, atomizer 6, eddy flow water inlet 7, spin chamber 8, axial flow water inlet 9 and hydraulic spray nozzle 10, and the quantity of described atomizer 6 is at least 1; Realize the injection of thin water smoke or direct current foam through the direct current/evolution of water smoke switching valve 2.The utility model fine water fog spraying gun be in when spraying thin water smoke state as Figure 1-1, press water enters spray gun handle 1 through press water inlet 20, conversion direct current/water smoke switching valve 2 is to the water smoke position, press water enters eddy flow water channel 5 through mixed flow chamber 13 one road water, direct current water rotates around waterfog head 3 inwalls under the effect of eddy flow water channel, and tangentially enter the eddy flow water inlet 7 of atomizer 6, in spin chamber 8, produce eddy flow.Another road water is told at rotation water channel 5 middle parts, enters axial flow water inlet 9, and Fig. 1-2 shows the end of this rotation water channel 5 to structure, and the two-way current are at hydraulic spray nozzle 10 front ends bump, and the ejection back produces thin water smoke.The diameter that changes spin chamber 8, hydraulic spray nozzle 10, axial flow water inlet 9 just can obtain the water smoke droplet of different-grain diameter, changes the diameter of waterfog head 3, increases or reduce the quantity of atomizer 6, can change the flow of spray gun, as Figure 1-3.

As shown in Figure 2, the utility model fine water fog spraying gun is in the duty of spraying the direct current foam: the press water that has 3% foam solution enters spray gun handle 1 through press water inlet 20, the conversion direct current/water smoke switching valve 2 to the direct current eject position, unscrew waterfog head 3, with locating shaft 4 is the center waterfog head that overturns downwards, this moment air inlet 12 expose with atmosphere together with, press water is by ejection of direct current current stabilization chamber and air exchange, enter mixed flow chamber air then and evenly mix, by direct current applicator 14 ejection foams with water.

The function of each several part is as follows: spray gun handle 1 is the switch that press water enters spray gun, and the operator moves switch and just can select to spray or do not spray; Direct current/water smoke switching valve 2 is to select atomized water spray to spray or the valve that the spray direct current sprays, and selects different spray regime fire extinguishings at different fire types during application.When spraying thin water smoke, waterfog head 3 is the parts that produce water smoke, it is made up of eddy flow water channel 5, atomizer 6, eddy flow water inlet 7, spin chamber 8, axial flow water inlet 9, hydraulic spray nozzle 10 6 parts, at first by eddy flow water channel 5, the effect of eddy flow water channel 5 is that the water that will flow vertically is transformed into rotatablely moving around the waterfog head inwall when press water enters waterfog head.Atomizer 6 is distributed in the circumference place of waterfog head 3 and opens the rotary water current inlet in periphery, and the current of high speed rotation enter atomizer 6 and are divided into two paths; Article one, be tangentially to enter spin chamber 8 through eddy flow water inlet 7, the current of rotation are poured into hydraulic spray nozzle under action of centrifugal force; Another road current are told in eddy flow water channel 5 porch, directly enter spin chamber 8 by axial flow water inlet 9, two strands of current hydraulic spray nozzle 10 of gushing out behind spin chamber's 8 inner impacts, the effect of centrifugal force and bump make aqueous dispersion become superfine droplet to form thin water smoke to spray equably; When spraying the direct current foam, the press water that has 1%～3% foam solution enters spray gun handle 1, conversion direct current/water smoke switching valve 2 is to the direct current eject position, unscrew waterfog head 3, with locating shaft 4 is the center waterfog head that overturns downwards, at this moment, air inlet 12 expose with atmosphere together with, press water generates vaporific ejection by 11 ejections of direct current current stabilization chamber, the spray water miscarriage of high-speed motion is given birth to negative pressure and is mixed into mixed flow chamber 13 from air inlet 12 suction air and water smoke, air is compressed also and water homogenisation in mixed flow chamber 13, in the two phase flow by 14 ejections of direct current applicator, compressed air bubble explosion, spray the water that foams, i.e. direct current foam with the foaming composition acting in conjunction in the water.

Characteristics of the present utility model are: direct current water is transformed into high-speed rotational through eddy flow water channel 5, enter the spin chamber 8 of atomizer 6 through opening cyclone water entrance 7 on atomizer 6 sidewalls, 8 inner impacts produce thin water smoke to the current of the current of rotational flow and warp beam flowing water entrance 9 in the spin chamber. Under the constant condition of pressure, the diameter that changes spin chamber 8, hydraulic spray nozzle 10, axial flow water inlet 9 just can obtain the water droplet of the following particle diameter of 400m, change the diameter of hydraulic spray nozzle 6 and axial flow water inlet 7, the quantity (at least 1 nozzle) that increases or reduce atomizer 6 can change the whole flow of spray gun. Can realize the injection of two functions of thin water smoke and direct current foam through the evolution of direct current/water smoke switching valve 2 at a fine water fog spraying gun.

Claims

1. fine water fog spraying gun, comprise spray gun handle (1), it is characterized in that: also comprise direct current/water smoke switching valve (2), waterfog head (3), locating shaft (4), direct current current stabilization chamber (11), air inlet (12), mixed flow chamber (13) and direct current applicator (14);

Described waterfog head (3) is made up of described eddy flow water channel (5), atomizer (6), eddy flow water inlet (7), spin chamber (8), axial flow water inlet (9) and hydraulic spray nozzle (10), and the quantity of described atomizer (10) is at least 1;

Evolution through direct current/water smoke switching valve (2) is realized the injection of thin water smoke or direct current foam.