SU856464A1 - Device for extinguishing fires on fountains of gas and gas-petroleum boreholes - Google Patents

Description

(54) INSTALLATION FOR THE EXTINGUISHING OF FIRE FIRES ON GAS AND GAS-OIL WELLS

one

FIELD OF THE INVENTION The invention relates to fire fighting equipment, in particular, to fire extinguishing devices in boreholes.

A known installation for extinguishing fires of fountains in gas and gas oil wells, containing a hollow collector, encompasses a well, on which uniformly around the perimeter are mounted nozzles for supplying water and the drive mechanism 1.

However, the known installation does not provide effective extinguishing of fountains with a low rate of hot gas outflow in the flame, since the water supplied to the fire does not have time to evaporate, as well as extremely powerful fountains with a flow rate of more than 8-10, at which the flame of the flame stabilizes at a height more than 30–50 m where the streams of water supplied by the sprayers do not reach.

The purpose of the invention is to increase the efficiency of extinguishing fires in gas and gas oil wells with a flow rate of 10–15 million.

This goal is achieved by the fact that the proposed facility has fire extinguishers with a chemically active inhibitor, powder charges for its ejection and nozzles installed in the direction of the fountain jet, while fire extinguishers are placed on the collector - evenly around its perimeter and pivotally mounted with the possibility of simultaneous radial rotation about the axis collector through the drive mechanism.

In this case, the installation has jacks, and the drive mechanism is designed as a synchronization ring installed coaxially with the collector with

10 to fire extinguishers and sprays, and the jacks are fixed on the collector and the synchronization ring.

The drawing shows the installation, general view.

Well 1 covers the hollow annular

Claims (2)

15 a collector 2, on which uniformly around the perimeter are mounted hinged sprays 3 for supplying water 4 to the flare 5. At the collector, also fire extinguishers 7 are installed uniformly around the perimeter on the hinges b, 20 each of which is filled with a chemically active inhibitor 8 and has a pyro cartridge 9, siphon tube 10 and a nozzle 11. A drive mechanism 12 for changing the angle of supply of water jets and jets of a chemically active inhibitor has a synchronization ring 13 with tors 14, connected to sprays and fire extinguishers, and jacks 15 mounted on the collector and synchronization ring. The installation works as follows. When igniting, the flare 5 is lifted above the borehole 1 by supplying water 4 from the collector 2 through the nozzles 3 to the maximum stabilization height, remotely controlled by the angles of the nozzles to be installed using the mechanism 12. Then the remote supply of electric voltage to the pyro cartridge 9 is activated by the fire extinguishers 7. When burning the powder charge of the squibs displaces the inhibitor 8 through the siphon tube 10 and the nozzle 11 into the flame of the flame 5. The inhibitor is displaced from the fire extinguisher under a pressure of 100-150 atm. The discharge time is 0.2-0.3 s with flow through the nozzle during the discharge of 600-1000 kg / s. Hinges 6 allow fire extinguishers to be installed at such an angle to the horizon that the charge of the inhibitor is sent under the plume, previously raised by spraying water from the sprayers. Thus, the presence of fire extinguishers in the installation, which have the possibility of a pulsed emission of a chemically active inhibitor with a large second flow rate of 600–1000 kg / s, can inhibit the burning gas jet to stop its burning in the event of a low gas outflow rate, and also to break the stabilizing ring flare at the critical critical height at the maximum possible gas flow rates due to the high range of the inhibitor jets ejected under a pressure of 100-150 atm. The installation has a high tactical and economic efficiency, since the required charge of a chemically active inhibitor per one quenching of a powerful fountain with a flow rate of up to 15 million meters of gas / day. does not exceed 170–200 kg, and the quenching time is 1–2 s. Claim 1. Installation for extinguishing fires of fountains on gas and gas-oil wells, containing a reservoir, covering the well, on which uniformly around the perimeter are installed articulated sprays for water supply, and a drive mechanism, which is designed to increase the efficiency of extinguishing. it has fire extinguishers with a chemically active inhibitor, powder charges for its ejection and nozzles installed in the direction of the fountain jet, while the fire extinguishers are placed on the collector evenly around its perimeter and installed pivotally with the possibility of synchronous radial rotation relative to the A-axis of the collector through the drive mechanism. 2. Installation under item 1, is different, and with the fact that it has jacks, and the drive mechanism is designed as a synchronization ring installed coaxially with the collector with traction wires connected to fire extinguishers and sprayers, and the Jacks are fixed on the collector and ring sync. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2495381/12, cl. A 62 C 3/00, 1977.