CN2073311U

CN2073311U - Waterpower air foam extinguisher

Info

Publication number: CN2073311U
Application number: CN 89221918
Authority: CN
Inventors: 王虎儒; 樊抗牢; 侯秉玺
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-30
Filing date: 1989-12-30
Publication date: 1991-03-20

Abstract

The utility model relates to a waterpower air foam extinguisher, which comprises a proportional mixer, a foam spraying gun and a concentrating foam liquid tank. The proportional mixer is connected with a hydrant via a hose, the pressure of a water source is utilized to extract concentrating foam from the concentrating foam liquid tank, and the concentrating foam flows to the foam spraying gun via the fire hose, with air sucked inside, which forms air foam extinguishing. In the device, the diffusion tube, the injection nozzle and the shell of the proportional mixer are singly processed and assembled, without integral die-casting needed, which is convenient for maintenance. In the foam spraying gun of the device, a single-hole nozzle internally plugged by a flow guiding body is adopted. The utility model is of simple fabrication and convenient maintenance, and water, air and the concentrating foam are mixed well.

Description

Waterpower air foam extinguisher

The utility model relates to the waterpower aerofoam fire extinguishing installation in a kind of fire-fighting equipment (A62C) field.

The waterpower aerofoam fire extinguishing installation is mainly used in the fire-fighting equipment of oils, alcohols and other combustible liquid fire of generations such as putting out oil depot, airport, petrochemical plant, Paint Factory, Alcohol Plant, grease factory.Its basic functional principle is: when breaking out of fire, be connected to fire hydrant through rotary hose, also promptly connect the water source, proportioner utilize source pressure with concentrated foam liquid by extracting out in the concentrated foam flow container, be delivered to foam lance through fire hose then, foam lance sucks air formation air automatically and puts out a fire.At present, proportioner in the waterpower aerofoam fire extinguishing installation adopts the jet pump operation principle mostly, the waterpower aerofoam fire extinguishing installation of producing as gondola CLODUE company and West Germany PREUSSAG company etc., its shortcoming is that proportioner is the integral die-cast moulding, must select the aluminum alloy materials of good fluidity for use.Simultaneously, be the porous nozzle in the foam lance of existing this type of extinguishing device, each aperture of nozzle be import greatly, go out young bellmouth, processed complex.

The purpose of this utility model is the shortcoming that exists at above-mentioned waterpower aerofoam fire extinguishing installation, designs that a kind of processing is easy, low cost of manufacture, aerofoam fire extinguishing installation easily easy to maintenance.Mainly wherein proportioner and foam lance improved.

The utility model is made up of proportioner, foam lance, concentrated foam flow container and rotary hose.Proportioner is received on the fire hydrant through rotary hose.Proportioner adopts the work of jet pump principle, is assembled after the processing separately by anemostat, nozzle, shell and two joints, does not need the integral die-cast moulding, is convenient to maintenance.Foam lance also is to utilize the jet pump operation principle, require to suck enough air, and the foam solution mixing material of water (the concentrated foam liquid with) is fully mixed with air.Final foam liquid of the present utility model and Air mixing form bumpy flow when flowing through baffle by foam solution in the single hole nozzle, spray at a high speed from single hole nozzle mouth, consequently suck air in a large number from each air intake and effectively mix.By the foam gun barrel, eject then from applicator.The advantage that this inside is plugged with the single hole nozzle structure of baffle is that drag losses is little, mixes air-breathing rate height, low cost of manufacture.Switching ball of the present utility model is selected the ball valve in the existing standardized common fire-fighting lance for use.

Accompanying drawing 1 is an operation principle schematic diagram of the present utility model.

Accompanying drawing 2 is structural representations of proportioner of the present utility model.

Accompanying drawing 3 is structural representations of foam lance of the present utility model.

Accompanying drawing 4 is structural representations of baffle of the present utility model.

Wherein: (1) among Fig. 1 is that fire hydrant is the water source, and (2) are rotary hoses, and (3) are proportioners, and (4) are rotary hoses, and (5) are foam lances, and (6) are the concentrated foam flow containers; (7) among Fig. 2 are water inlets, and (8) are nozzles, and (9) are concentrated foam liquid inlets, and (10) are the imbibition chambers, and (11) are anemostats, and (12) are shells, and (13) are mixture exports, and (23) are hose connections; (14) among Fig. 3 are entry to mixed solution, and (15) are switching ball, and (16) are baffles, and (17) are air intakes, and (18) are the single hole nozzles, and (19) are the foam gun barrels, and (20) are applicators; (21) among Fig. 4 are cylinders, and (22) are swirl plates.

Below in conjunction with accompanying drawing the utility model is further described.

The nozzle (8) of proportioner (3) and anemostat (11) adopt common aluminum casting single-piece work to form, and shell (12) adopts common steel tube to process.Baffle (16) profile of foam lance (5) is a spirality, and lead angle is 45 °～60 °.Cylinder (21) in the baffle (16) is a hollow cylinder, and it and swirl plate (22) are brass material and make; Swirl plate (22) optional 3～6 be uniformly distributed in cylinder (21) around, can directly be welded on the cylinder (21).Baffle (16) only needs directly to insert in the single hole nozzle (18), does not need to add in addition fixation.

The utility model is easy to process, efficient is high, maintenance is simple.

Claims

1, a kind of waterpower aerofoam fire extinguishing installation that belongs to fire-fighting equipment, it is mainly by proportioner [3], foam lance [5] and concentrated foam flow container [6] are formed, proportioner [3] is received fire hydrant [1] through rotary hose [2], proportioner [3] is connected to foam lance [5] through rotary hose [4], it is characterized in that proportioner [3] is by nozzle [8], anemostat [11], shell [12] and two hose connections [23] are assembled, foam lance [5] has adopted single hole nozzle [18] and baffle [16], and switching ball [15] is selected the ball valve in the common fire-fighting lance for use.

2, the waterpower aerofoam fire extinguishing installation described in claim 1 is characterized in that baffle (16) profile is a spirality, and lead angle is 45 °～60 °; Cylinder (21) in the baffle (16) is a hollow cylinder, and it and swirl plate (22) are brass material and make, swirl plate (22) optional 3～6 be uniformly distributed in cylinder (21) around.

3, waterpower aerofoam fire extinguishing installation as claimed in claim 1 is characterized in that nozzle (8) and anemostat (11) adopt aluminum casting, and shell (12) adopts common steel tube to process.