High-expansion foam generator

Abstract

The invention relates to a fire-fighting technology and discloses a high-expansion foam generator. The high-expansion foam generator is characterized by comprising a cylindrical shell, a hydroturbine, a fan blade impeller, a foaming net, a header pipe and a plurality of nozzles, wherein the foaming net is arranged on a main shaft of the hydroturbine; the foaming net is arranged at one end of the shell; the header pipe is communicated with an external foam liquid source; the nozzles are arranged at the other end, over against the foaming net, of the shell; an central outlet of the hydroturbine is communicated with the nozzles respectively through pipelines; a tangential inlet of the hydroturbine is communicated with the header pipe respectively through pipelines; the wind direction of the fan blade impeller points at the foaming net. In the high-expansion foam generator, the foaming net is sawtoothed, so the foaming area is increased; motion airflow generated by the hydroturbine and the fan blade impeller which are mounted in the shell can guarantee distribution uniformity of air in the outer cylinder, so the foaming expansion is increased; the hydroturbine adopts liquid actuation, so energy can be saved; the high-expansion foam generator has the advantages of large foaming quantity, high fire extinguishing speed, safety and reliability.

Description

technical field [0001] The invention relates to fire-fighting and fire-extinguishing technology, in particular to a high-expansion foam generator. Background technique [0002] At present, most of the existing high-expansion foam generators on the market are generators with small flows driven by water turbines, namely PFS3 and PFS4 types. Among the high-expansion foam generators, it is difficult to use a single generator to meet the requirements of super-large space fire extinguishing, and the pipe network system is complicated and difficult to install if multiple generators are used, and the reliability of the system is relatively poor. [0003] However, with the development of the navigation industry, the tonnage of ships is increasing, and the potential fire hazards are becoming more and more serious, such as: engine room, engine room, flight deck, hangar, electrical equipment room, gasoline storage room, kerosene Storage cabins, fuel pump rooms, etc. are the most common...

AI Technical Summary

Problems solved by technology

Among high-expansion foam generators, it is difficult to use a single generator to meet the requirements of super-large space fire extinguishing. Using multiple generators has a complicated pipe network system, difficult installation, and relatively poor system reliability.

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