SU84599A1 - - Google Patents

Description

A.N. Dobrynin universal fire extinguisher

It was announced on April 18 (fe 376725 to State Technical University of the USSR

Published bulletin of Invention, promoted in a great deal, trademarks) JQ 2 for 196.

The image is related to injecting-type fire extinguishers or with a compressed gas prioeniem charge cylinder. Known fire extinguishers of this type have the disadvantage that each of them can usually be used for work in certain cases, and the construction of fire extinguishers of pumping type does not provide control over possible air leakage.

In the proposed fire extinguisher, these shortcomings are eliminated. It can be charged with various fire extinguishing agents. To this end, the fire extinguisher is made with interchangeable parts - tips with a spray insert, a jet nozzle and fittings, making it possible to obtain either a concentrated jet or spray jet of fluid, giving it a shape, for example, a sprayed rotating torch and a rain jet, or air-mechanical foam, or, finally, chemical foam.

In addition, the described universal fire extinguisher makes it possible to use not only chemical charges, but also water for fire extinguishing. An injection type fire extinguisher can be supplied with a control device to check the air pressure in it with the creation of conditions for determining possible air leakage. To do this, fill the hole with the extinguishing fluid.

PRINCTURE INVENTIONS

Claims (2)

1.Universal injection type fire extinguisher or from a primary gas cylinder with a compressed gas, characterized in that it has replaceable parts — the tip of the spray gun, the ejector head, and the armature that make it possible to receive either concentrated fluids or sprayed fluids, or mechanical air foam, or chemical foam ,. 2. An injection type fire extinguisher according to claim 1, characterized in that, in order to pump air into it, and to periodically check the air pressure in charged fire extinguishers, it is equipped with a control device consisting of a pressure gauge and a check valve, which is replaced after injection into the fire extinguisher or after checking the air pressure in the charged fire extinguishers with a tip or ejector nozzle. -3, Injection type fire extinguisher according to claim 1, characterized in that, for the visibility of possible air leakage, an opening for pouring extinguishing liquid plugged by a stopper is located on the bottom bottom of the case of the fire extinguisher with valve in the lower part of the case for replaceable parts mounted on the valve. t. The spray tip to the fire extinguisher of claim 1, 1, about the same with the fact that, to give the shape of the sprayed rotating torch, used a conical ear with a helical groove on the outer side surface laid inside the tip, 5. Spray tip to fire extinguisher by. n.I, that is, so that, to obtain a sprayed (rain) jet, an insert with inclined grooves in it is used, inserted inside the tip. ; b. An ejector attachment to a fire extinguisher as defined in claim 1, with air suction openings and a cone nozzle, characterized in that, to simplify manufacture, the device for mixing the peyoobrazer's solution with air is made in the form of a helical spring inserted into the nozzle cavity. fire 111It will be5; .. to leave, respectively, the liquid in the form of a sprayed torch or a rain jet. In order to eject the air-mechanical foam from the universal fire extinguisher, it is necessary to pour a frother solution into the fire extinguisher, pump in air and screw the corresponding electric nozzle onto the valve. When the valve is opened, a jet of air-mechanical foam will be ejected from the fire extinguisher, the ejector nozzle will form foam from the mixture of the outside air entering its body 10 through the openings II, and the foaming agent solution flowing through the nozzle 12 in the nozzle. For better foaming, wire helix 13 is inserted into the nozzle body 10 and is put on the nozzle. To obtain a chemical foam, instead of the valve 4, a tip .7 is placed and the fire extinguisher is charged through the throat with a chemical charge (soda and acid) in the usual way. The mouth of the valve is closed with fittings with a hammer. When the drummer breaks up the flask with acid inside the fire extinguisher, a reaction takes place between itself and the acid, releasing carbon dioxide, while I8 of the fire extinguisher emits a jet of chemical foam under pressure. A universal fire extinguisher using a compressed air cylinder works as follows, A nipple 15 having an external thread is welded to the body I of the fire extinguisher. To the nipple 15, one of the replacement parts, as well as a fire pump of a pumping pump and, depending on the type of charge, receive either a concentrated jet of fluid, or a spray jet of fluid, or air-mechanical foam. To obtain a chemical foam, a fire extinguisher is charged with alkaline acid and p | & to nipple 15 screw the tip 7. The fire extinguisher actuates it by flipping it and striking the button of the firing pin 14, which, or probe the membrane of the charging cylinder 16, to release compressed air, or breaks the flasks with an acid that interacts with the alkaline part of the charge. T2G: . 2 FIG. YU