SU1212438A1 - Fire-fighting system - Google Patents

Description

The invention relates to fire fighting equipment, in particular to automatic fire extinguishing installations designed to extinguish and contain fires in fireplaces, with a high degree of fire danger, where rapid spread of fire is possible ,,,,,,

The purpose of the invention is to expand the technology of consumers.

FIG. 1 shows the proposed system against the system, - general, its form; in fig. i | sniper-launch K ianaH.

Fire and fire. .. the system consists of a magistral trubrovo 1, connected with c1 | The House of Sprinklers 2 by means of shut-off valves 3, each of which includes feeding 4 and starting chambers 5 with locking diaphragm 6, a sprinkler 7 connected to outlet 8 of the starting chamber. The system also has reverse chambers 9 for connecting all the sprinklers to each other, as well as each the sprinkler with the stimulus chamber of the corresponding shut-off valve and the stimulus chamber of the valve nearest to it, and the supply chamber of the valves are connected to the main pipeline by means of nozzles 10. In addition, the valve diaphragm closes the opening 11, coaxially with the outlet of the motive chamber.

The fire suppression system further comprises a conduit 12 for connecting the irrigators 2 with the feed chamber 4 by means of fittings 13, and a conduit 14 for connecting the sprinklers.

Fire system works as follows.

When slowly opening the valve (not shown) on the main pipeline 1, water through the connections 10 of the shut-off valves 3 and through the openings 11

ten

15

five

0

0

five

in the membranes 6, the booster chambers 5 of the shut-off valves 3 are filled, and through the outlets 8 - the pipeline 14. After filling the booster chamber 5 and the pipeline 14, the water pressure in them and in the main pipeline is equalized. After filling the installation motive system, the valve opens fully.

If a fire occurs and the temperature inside some section reaches the melting point of the low-melting alloy of the sprinkler lock, the sprinkler 7 of the porn-starting valve 3 installed in this section opens and the water through outlet 8 and the opened sprinkler comes out. Due to the fact that the diameter of the hole in the outlet 8 is much larger than the diameter of the hole in the membrane 6, the pressure in the stimulation chamber drops and the water pressure in the nozzle 10 membrane 6 is bent towards the cover of the stimulation chamber 5, opening the passage of water through the inlet 10 to the pipeline 12 and through sprinklers 2 in the protected area. Since the sprinkler of the shut-off valve is connected by pipeline to the stimulating chambers of the neighboring shut-off valves through the check valves that are open from them to the opened sprinkler, these shut-off valves will also open. The remaining shut-off valves will remain closed. Irrigation adjacent to the emergency sections is necessary to prevent the spread of fire due to a sufficiently large inertia of the thermal locks.

The use of the invention will make it possible to increase the technological capabilities of the fire protection system by ensuring that the necessary part of the sprinklers or all the sprinklers are included in the operation, depending on the specific conditions.

twj.

Compiled by V. Mikholska

Editor V. IvanovaTehred I. VeresKorrektor G. Reshetnik

Order 665/6 Circulation 432 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (2)

1. FIRE-FIGHTING SYSTEM, comprising a main pipeline connected to the rows of sprinklers using shut-off and start-up valves, each of which includes a supply and induction chambers with a shut-off membrane, a sprinkler connected to the exit-induction chamber, characterized in that, for the purpose of expanding technological capabilities, it has check valves for connecting all sprinklers to each other, as well as each sprinkler with a motive chamber of the corresponding shut-off and starting valve and with motive chambers of the valve closest to it, and the valve feed chambers are connected to the main pipeline by means of nozzles. 2. The system by π. 1, characterized in that the shut-off valve membrane has an opening coaxial with the output of the induction chamber. FIG. 1