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Universal fire trunk

Journal: Pozharovzryvobezopastnost/Fire and Explosion Safety (Vol.27, No. 1)

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Page : 69-76

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Practice of suppression of the fires in oil and gas branch by firefighters of divisions shows that at suppression of tanks in any way not to do without the mobile fire fighting equipment. Suppression of the tank by means of raising of foam, despite the modern fire extinguishing systems, remains to the most efficient. The mobile fire fighting equipment is equipped with a lifter - the arrow capable to deliver solution of a foamer to larger height. The most known of fire raising of foam equipped with installation of the combined fire extinguishing is the fire Purga-20.40.60 installation which allows to create foam of low and average frequency rate. Purga-20.40.60 is intended for receiving air and mechanical foam with the increased giving range. Installation is used for suppression of the fires of flammable and combustible liquids. Advantage of this installation is the high consumption of foam, and shortcomings - low maneuverability and loss of time at suppression because of change of trunks with supply of foam of low frequency rate. In this regard there was a need for modernization of the existing installation of the combined suppression of the fires of Purga by change of its structure and principal specifications. The universal fire trunk Purga-73D on the basis of already existing installation for fire extinguishing Purga-20.40.60 is offered to introduction. The developed fire trunk has the system of division of streams of foamy solution. The system is capable to be divided into the combined mode with supply of foam of average frequency rate and foam of low frequency rate at the same time. The main improvement of the universal fire trunk is that in this development there is a possibility of distant switching of duties of a trunk on the operating console established in a compartment of control of the fire pump. On principal specifications the universal fire trunk in comparison with a routine trunk Purga-60 has advantages: it is high efficiency and advantage of use of foam of low frequency rate, at the same time a difference in a consumption of foaming agent and water small and consequently, his use at fire extinguishing is more efficient and economic.

Last modified: 2018-10-16 21:38:42