CN201558432U

CN201558432U - Air pressure spray gun

Info

Publication number: CN201558432U
Application number: CN2009202069650U
Authority: CN
Inventors: 郑林; 孙泽国; 殷正成
Original assignee: Chongqing Institute of China Coal Research Institute
Current assignee: CCTEG Chongqing Research Institute Co Ltd
Priority date: 2009-11-03
Filing date: 2009-11-03
Publication date: 2010-08-25
Anticipated expiration: 2019-11-03

Abstract

The utility model discloses an air pressure spray fire extinguishing gun, which comprises an air supply and water supply device and an atomizing injector. tube and spray control device, the atomization chamber is provided with an atomization air inlet and an atomization water inlet respectively connected with the high-pressure gas storage bottle and the water tank, the nozzle pipe is arranged at the front end of the atomization chamber, and the spray control device includes a normally closed air Valve, normally closed water valve and valve control switch. The normally closed air valve and normally closed water valve are respectively set at the atomization inlet and atomization water inlet. The valve control switch controls the normally closed air valve and the normally closed The water valve is opened synchronously. When in use, due to the synchronous opening of the normally closed air valve and the normally closed water valve, the high-pressure gas and water continue to enter the atomization chamber, and the water is crushed under the action of the high-speed air flow to form tiny droplets, thereby Produces sustainable water mist, which effectively improves the fire extinguishing effect, and its fire extinguishing level can reach 4A and 5B.

Description

The air-blast atomizing fire gun

Technical field

The utility model relates to fire-fighting equipment, particularly a kind of air-blast atomizing fire gun.

Background technology

Air-water two phase flow spraying fire gun is a kind of fire plant that utilizes the atomizing principles of liquid to make, existing air-water two phase flow spraying fire gun is a pulsed, can not produce water smoke continuously, make fire-fighting efficiency low, and have only a kind of mode of remote water spray, bad for the effect of putting out a fire to save life and property of A, B, C class fire among a small circle.

At above-mentioned deficiency, need to improve to existing fire gun, make it can produce water smoke continuously, improve fire-fighting efficiency, and make it possess remote and two kinds of fire-fighting modes of water spray closely.

The utility model content

In view of this, the utility model provides a kind of air-blast atomizing fire gun, and this fire gun can produce water smoke continuously, improves fire-fighting efficiency, and possess remote and two kinds of fire-fighting modes of water spray closely, can be according to scene of fire actual conditions Fast transforms fire-fighting mode.

Air-blast atomizing fire gun of the present utility model, comprise air feed water supply installation and spray nozzle, described air feed water supply installation comprises high pressure gas cylinder and the water tank that is interconnected, described spray nozzle comprises the tubular spray chamber, jet pipe and ejection control device, be respectively arranged with atomizing air inlet that is communicated with the high pressure gas cylinder and the atomizing water inlet that is communicated with water tank on the described spray chamber, jet pipe is arranged at the spray chamber front end and is communicated with spray chamber, described ejection control device comprises the normally closed type air valve, normally closed type water valve and valve gauge tap, described normally closed type air valve is arranged at the atomizing air inlet of spray chamber, the normally closed type water valve is arranged at the atomizing water inlet of spray chamber, and the valve driven unit of opening of normally closed type air valve and normally closed type water valve all is connected same valve gauge tap.

Further, described normally closed type air valve comprises valve body I, spool I and compresses return spring I, on the described valve body I air storing cavity, valve air inlet and valve air gate are set, spool I is being arranged at along the mode that valve air gate axially reciprocatingly slides in the air storing cavity, the one end is blocked valve air gate, the other end stretches out valve body I and forms control end I, and the described two ends that compress return spring I are withstood spool I and valve body I respectively; Described normally closed type water valve comprises valve body II, spool II and compress return spring II, on the described valve body II water storage cavity is set, valve water inlet and valve delivery port, spool II is being arranged at along the mode that the valve delivery port axially reciprocatingly slides in the water storage cavity, the one end is blocked the valve delivery port, the other end stretches out valve body II and forms control end II, the described two ends that compress return spring II are withstood spool II and valve body II respectively, the structure that described control end I connection control end II formation spool I and spool II can slide synchronously, described valve gauge tap is a valve control trigger, and valve control trigger withstands control end I or control end II along the direction of spool I or spool II slip;

Further, described normally closed type air valve and normally closed type water valve are magnetic valve;

Further, described atomizing air inlet is axially set in the rear end of spray chamber along spray chamber, and the atomizing water inlet is for being set up in parallel narrow slit on the spray chamber barrel along the spray chamber circumferential and axial respectively;

Further, also comprise the mixing chamber that is arranged between spray chamber and the jet pipe;

Further, also comprise the closely jet pipe that is arranged at the jet pipe front end removably, the defogging hole of described closely jet pipe front end for being set up in parallel along jet pipe circumferencial direction closely, described defogging hole by the back to preceding, run through the closely tube wall of jet pipe from inside to outside, its axis becomes 15～45 ° of angles with the axis of jet pipe closely;

Further, described closely jet pipe is hinged on the jet pipe front end, and the axis of described defogging hole becomes 30 ° of angles with the axis of jet pipe closely;

Further, the outlet of described high pressure gas cylinder is provided with the single channel pressure-reducing valve;

Further, be disposed with check valve and safety valve along the air current flow direction between described high pressure gas cylinder and the water tank;

Further, described water tank is provided with the water tank vent valve.

The beneficial effect of utility model: air-blast atomizing fire gun of the present utility model, comprise air feed water supply installation and spray nozzle, described air feed water supply installation comprises high pressure gas cylinder and the water tank that is interconnected, described spray nozzle comprises the tubular spray chamber, jet pipe and ejection control device, be respectively arranged with atomizing air inlet that is communicated with the high pressure gas cylinder and the atomizing water inlet that is communicated with water tank on the described spray chamber, jet pipe is arranged at the spray chamber front end and is communicated with spray chamber, described ejection control device comprises the normally closed type air valve, normally closed type water valve and valve gauge tap, described normally closed type air valve is arranged at the atomizing air inlet of spray chamber, the normally closed type water valve is arranged at the atomizing water inlet of spray chamber, valve gauge tap control normally closed type air valve and normally closed type water valve are opened synchronously, during use, because valve control trigger control normally closed type air valve and normally closed type water valve are opened synchronously, make high pressure draught and water continue to enter spray chamber, the water formation fine droplet that under the effect of high velocity air, is crashed to pieces, thereby produce the water smoke of sustainable ejection, effectively raise its fire extinguishing effect, its extinguishing grade can reach 4A, the 5B level.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of spray nozzle.

The specific embodiment

Fig. 1 is a structural representation of the present utility model, Fig. 2 is the structural representation of spray nozzle, as shown in the figure: the air-blast atomizing fire gun of present embodiment, comprise air feed water supply installation and spray nozzle, described air feed water supply installation comprises high pressure gas cylinder 1 and the water tank 2 that is interconnected, described spray nozzle comprises tubular spray chamber 3, jet pipe 4 and ejection control device, be respectively arranged with atomizing air inlet 3a that is communicated with high pressure gas cylinder 1 and the atomizing water inlet 3b that is communicated with water tank 2 on the described spray chamber 3, jet pipe 4 is arranged at spray chamber 3 front ends and is communicated with spray chamber 3, described ejection control device comprises the normally closed type air valve, normally closed type water valve and valve control trigger 5, described normally closed type air valve is arranged at atomizing air inlet 3a, and the normally closed type water valve is arranged at atomizing water inlet 3b; Described normally closed type air valve comprises valve body I6, spool I7 and compresses return spring I8, air storing cavity 6a, valve air inlet 6b and valve air gate 6c are set on the described valve body I6, spool I7 is can be arranged in the air storing cavity 6a along the mode that valve air gate 6c axially reciprocatingly slides, the one end is blocked valve air gate 6c, the other end stretches out valve body I6 and forms control end I7a, and the described two ends that compress return spring I8 are withstood spool I7 and valve body I6 respectively; Described normally closed type water valve comprises valve body II 9, spool II10 and compress return spring II11, on the described valve body II 9 water storage cavity 9a is set, valve water inlet 9b and valve delivery port 9c, spool II10 is being arranged at along the mode that valve delivery port 9c axially reciprocatingly slides in the water storage cavity 9a, the one end is blocked valve delivery port 9c, the other end stretches out valve body II 9 and forms control end II10a, the described two ends that compress return spring II11 are withstood spool II10 and valve body II 9 respectively, described control end I7a connects control end II10a and forms the structure that can slide synchronously, described valve control trigger 5 withstands control end I7a or control end II10a along the direction of spool I7 or spool II10 slip, valve control trigger 5 control normally closed type air valves and normally closed type water valve are opened synchronously, during use, pull valve control trigger backward, after driving control end I and control end II, moves valve control trigger, drive spool I simultaneously and spool II opens synchronously, make high pressure draught and water continue to enter spray chamber, the water formation fine droplet that under the effect of high velocity air, is crashed to pieces, thereby produce the water smoke of sustainable ejection, when unclamping valve control trigger, spool I and spool II are compressing return spring I and are compressing under the effect of return spring II resilience and block valve air gate and valve delivery port respectively respectively, make spray nozzle stop to produce and water spray, simultaneously, valve control trigger is also compressing return spring I and is compressing return under the effect of return spring II.Certainly, adopt other valves replacement normally closed type air valve and normally closed type water valves such as magnetic valve, can reach synchro switch equally, realize the purpose of this utility model.

In the present embodiment, described atomizing air inlet 3a is axially set in the rear end of spray chamber 3 along spray chamber 3, atomizing water inlet 3b is for being set up in parallel narrow slit on spray chamber 3 barrels along spray chamber 3 circumferential and axial respectively, water radially enters spray chamber by narrow slit, can in spray chamber, form water curtain, enter the air-flow of high-voltage high-speed simultaneously vertically, can farthest smash water curtain, obtain more tiny water droplet, reach best atomizing effect.

In the present embodiment, also comprise the mixing chamber 12 that is arranged between spray chamber 3 and the jet pipe 4, in mixing chamber, spray from jet pipe behind the formation air-water mixture, under the effect of air stream, secondary-atomizing takes place again, and then be broken into littler drop around.

In the present embodiment, also comprise the closely jet pipe 13 that is arranged at jet pipe 4 front ends removably, the defogging hole 13a of described closely jet pipe 13 front ends for being set up in parallel along jet pipe 13 circumferencial directions closely, described defogging hole 13a by the back to before, run through the closely tube wall of jet pipe 13 from inside to outside, its axis becomes 15～45 ° of angles with the axis of jet pipe 13 closely, because the closely jet pipe of convenient dismountable plurality of specifications can be set, can realize the atomized water spray of multiple distance by changing different closely jet pipes, defogging hole and closely the angle between the jet pipe determine the scope of scattering of its jet length and water smoke, can select spray regime flexibly for use by the fire of variety classes and size, effectively improve fire-fighting efficiency.

In the present embodiment, described closely jet pipe 13 is hinged on jet pipe 4 front ends, the axis of described defogging hole 13a becomes 30 ° of angles with jet pipe 13 axis closely, be arranged at the jet pipe front end by jet pipe closely by articulated manner, can be by rotating closely the jet pipe dual mode of changing easily at a distance and closely spray.

In the present embodiment, the outlet of described high pressure gas cylinder 1 is provided with single channel pressure-reducing valve 14, and is simple in structure, effectively raises the stability and the reliability of its work.

In the present embodiment; be disposed with check valve 15 and safety valve 16 along the air current flow direction between described high pressure gas cylinder 1 and the water tank 2; check valve can prevent effectively that the water smoke refluence from entering pressure reducer; it is caused harmful effect; safety valve can play the effect of decompression protection, the security that the raising system uses.

In the present embodiment, described water tank 2 is provided with water tank vent valve 17, so that get rid of the residual air in the whole system.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. a kind of air pressure spray fire extinguishing gun, comprise air supply water supply device and atomizing injector, described air supply water supply device comprises the high-pressure gas cylinder (1) and the water tank (2) that communicate with each other, it is characterized in that: described mist The atomization injector includes a cylindrical atomization chamber (3), a spray pipe (4) and a spray control device, and the atomization chamber (3) is respectively provided with an atomization air inlet communicated with a high-pressure gas cylinder (1) (3a) and the atomizing water inlet (3b) that communicates with the water tank (2), the spray pipe (4) is arranged on the front end of the atomizing chamber (3) and communicates with the atomizing chamber (3), and the spray control device includes a regular A closed air valve, a normally closed water valve and a valve control switch, the normally closed air valve is arranged at the atomization inlet (3a), the normally closed water valve is arranged at the atomization water inlet (3b), and the normally closed The valve opening driving components of the air valve and the normally closed water valve are all connected to the same valve control switch.

2. The air pressure spray fire extinguishing gun according to claim 1, characterized in that: the normally closed air valve comprises a valve body I (6), a valve core I (7) and a compression return spring I (8), The valve body I (6) is provided with an air storage cavity (6a), a valve air inlet (6b) and a valve air outlet (6c), and the valve core I (7) can reciprocate axially along the valve air outlet (6c) Set in the air storage cavity (6a) in a sliding manner, one end of which blocks the valve outlet (6c), and the other end protrudes from the valve body I (6) to form a control end I (7a), and the compression return spring I The two ends of (8) withstand the spool I (7) and the valve body I (6); the normally closed water valve includes the valve body II (9), the spool II (10) and the compression return spring II (11), the valve body II (9) is provided with a water storage chamber (9a), a valve water inlet (9b) and a valve water outlet (9c), and the valve core II (10) can be moved along the valve water outlet (9c) ) is set in the water storage cavity (9a) in the way of axial reciprocating sliding, one end of which blocks the valve outlet (9c), and the other end protrudes from the valve body II (9) to form the control end II (10a), the pressing The two ends of the return spring II (11) withstand the spool II (10) and the valve body II (9) respectively, and the control end I (7a) is driven to cooperate with the control end II (10a) to form the spool I (7) A structure that can slide synchronously with the spool II (10), the valve control switch is a valve control trigger (5), and the valve control trigger (5) pushes along the sliding direction of the spool I (7) or spool II (10). Hold control terminal I (7a) or control terminal II (10a).

3. The air pressure spray fire extinguishing gun according to claim 1, characterized in that: both the normally closed air valve and the normally closed water valve are electromagnetic valves.

4. The pneumatic spray fire extinguishing gun according to claim 2 or 3, characterized in that: the atomization air inlet (3a) is arranged at the rear end of the atomization chamber (3) along the axial direction of the atomization chamber (3) , the atomizing water inlet (3b) is a narrow slit arranged side by side on the cylinder wall of the atomizing chamber (3) along the circumferential and axial directions of the atomizing chamber (3).

5. The air pressure spray fire extinguishing gun according to claim 4, characterized in that it further comprises a mixing chamber (12) arranged between the atomizing chamber (3) and the spray pipe (4).

6. The air pressure spray fire extinguishing gun according to claim 5, characterized in that: it also includes a short-distance nozzle (13) that is detachably arranged on the front end of the nozzle (4), and the short-distance nozzle (13) ) front end is a mist discharge hole (13a) arranged side by side along the circumferential direction of the short distance nozzle (13), and the mist discharge hole (13a) runs through the pipe wall of the short distance nozzle (13) from back to front and from inside to outside , its axis forms an included angle of 15-45° with the axis of the short-distance nozzle (13).

7. The air pressure spray fire extinguishing gun according to claim 6, characterized in that: the short-distance nozzle pipe (13) is hinged at the front end of the nozzle pipe (4), and the axis of the mist discharge hole (13a) is in line with the short-distance nozzle pipe ( 13) The axis forms an included angle of 30°.

8. The air pressure spray fire extinguishing gun according to claim 7, characterized in that: the outlet of the high-pressure gas cylinder (1) is provided with a one-way decompression valve (14).

9. The air pressure spray fire extinguishing gun according to claim 8, characterized in that: a one-way valve (15) and a safety valve are sequentially arranged between the high-pressure gas cylinder (1) and the water tank (2) along the flow direction of the air flow (16).

10. The air pressure spray fire extinguishing gun according to claim 9, characterized in that: the water tank (2) is provided with a water tank release valve (17).