SU41351A1 - Apparatus for obtaining mechanically by fire extinguishing foam - Google Patents

Description

The production of foam for the purpose of extinguishing was chemically achieved by mixing acidic, alkaline, and saponified reagents and then following the chemical reaction of these reagents.

In the proposed apparatus, the production of foam is carried out mechanically by injecting air, water and washing the pump under pressure into the piston chamber. The distinctive features of the apparatus are that for the differential supply of water and saponifying concentrate, mixed under pressure, the sub piston pump prostranstv is separated from the mixing chamber by a partition with by-pass valves opened automatically and periodically.

FIG. 1 of the drawing shows the apparatus in longitudinal section; FIG. 2-id went to the side with a partial cut.

The device is made according to the principle of simultaneous suction into the pump cylinder of 89%, Yu- / o water and 1% of oily substances with their spraying and subsequent compression.

When compressed, the fluid diffuses with the air, which ends (135)

mounted in an adjacent chamber by mechanical stirring. The emu.1: obtained in this way is thrown into the foam line, where it, when combined with water, forms foam.

Such an apparatus consists of a cylinder 3 with a piston 9, the rod of which is fitted onto the crankshaft 12 with a hook 11. Cavity 20 is connected by pipes 27, 28 and 29 to tanks S and G. Reservoir B is used for storing scrubbers, and the reservoir is for watering. Both pesepByapa 5 and G tubes, blocked by regulating cranes 30 and 31, with a view 1Steve nozzle nozzles 5 and 6 communicated with the under-cheshnevnomu space qilin ipa 3. Nozzles 5 and 6 are introduced into the cylinder through pipes 8 and are arranged concentric in them. The pipes 8, which serve to supply air, are equipped with air valves 7. The nozzles of nozzles 5 and 6 surrounded by pipes 8 form the nozzles 1, the lower part of the cylinder 3, separated

A bowl of water degradation, with a camera and a mix. Inside this chamber are perforated agitators 13, rotated by spindle 14 from the actuator 17. The piston space of the cylinder 3 with the mixing chamber B is periodically communicated by automatically opening valves 24 pressed against the seats by the action of springs.

The automatic opening of these valves is carried out by wedge-shaped forks of the rods (t g) 23, moved in the vertical direction by the eccentrics 22, seated on the pump shaft 12. The pump is driven by the actuator 2. The passages for the valve valves 24 through the walls of the housing 10 are sealed with the glands 25.

The emulsion obtained in the mixing chamber is discharged through the valve 15 of the cylinder cap 18 to the expanding conductor 16. The reservoir G is supplied with water through pipeline 26.

The action of the apparatus is as follows. When upwardly moving the piston 9 of the pump L with the connecting rod sitting on the shaft 12, rarening occurs in the cylinder 3, and compression occurs in the cavity 20. in the cavity 20, the air entering through the valve 21, through tube 27 and its branches 28 and 29, enters the tanks B and G. From the latter, under pressure of compressed air, through pipes 5 and 6 through regulating taps 30 and 31 and through nozzles water and saponin concentrate, sprayed with a stream of air sucked through the valves 7 into the pipes 8, enter the cylinder 3.

In this cylinder, the incoming mixture is compressed by the piston 9 and in compressed form

through the valves 24, which are opened to the atom, the cam distribution: niem22, 23 enters the mixing chamber b. In chamber B, the dfusion process ends - stirring m xa: in m, consisting of spindle 14, carrying blades 13 with holes.

The agitator receives movement from transmission through pulley 17. From chamber B, the resulting emulsion is ejected through valve 15 into a foam tube 16 having a variable cross-section. The entire apparatus is set in motion through pulley 2 and shaft 12 from the motor.

The described design of the apparatus can be made both as a fixed installation and as portable.

The subject matter of the invention.

Claims (2)

1. An apparatus for obtaining mechanically fire extinguishing foam consisting of a pair of water storage tanks and a sludge concentrate supplied under pressure into the pumping space and then into a mixing chamber different from Tevi that, for differential feed to the mixing chamber foaming water and ohms. By mixing them under pressure, the sub piston space of the cylinder 3 of the pump O1 is separated from the mixing chamber by a partition with the relief valves 24, periodically opened by means of grids 23 connected by eccentrics 22 mounted on the drive shaft. 2. In the apparatus according to claim 1, the use in the mixing chamber of a mechanical broomstick 13, 14. to the author's certificate of N. A. p. M. Vulman No. Gvozdyov-Ivana ko 41351 "ЗЗир.2  ,at ( Shit one ) gvv