2022-3_Pages_70-75

https://doi.org/10.37657/vniipo.pb.2022.82.26.008

STATE OF THE ISSUE OF PULSE FIRE EXTINGUISHING

Alexey V. Kazakov¹, Roman A. Emelyanov¹, Dmitry V. Buhtoyarov¹, Denis V. Poltavets¹

¹All-Russian Research Institute for Fire Protection (VNIIPO), the Ministry of the Russian Federation for Civil Defence, Emergencies and Elimination of Consequences of Natural Disasters (EMERCOM of Russia). Balashikha, Moscow region, Russia

Abstract. The problem of eliminating fires spreading over large areas in closed and semi-closed spaces (warehouses, cable channels, high-rise buildings, etc.) is important and difficult to solve. Firstly, it is difficult to get close to such fire, therefore it is necessary either to solve the problem of supplying extinguishing agents from a long distance which complicates the fire extinguishing process or to install automatic fire extinguishing systems in close proximity to the source that is very difficult due to potentially destruction by possible explosions. Secondly, in order to suppress a developed fire from a long distance it is necessary to supply extinguishing agent continuously for a long time or to supply a large amount of extinguishing powder directly to the flame source at the same time. It is a very difficult task since it is necessary to get into a small diameter relative to the distance to it. The aforesaid suggests that it is necessary to investigate various ways of supplying a fire extinguishing agent. The paper provides an overview of the development of fire extinguishing means based on a pulse method of supplying the extinguishing agent to the ignition source. Currently special attention is paid both to the development of such technologies and to the creation of such fire extinguishing tools that would allow suppressing fire without coming into direct contact with it. Direct contact with fire means that a person exposes to a number of fire hazards: high temperatures, lack of air and visibility, risks associated with the unpredictability of the situation. In some cases, successful suppression of the source of combustion can be ensured by means and methods of extinguishing that allow remotely supplying of fire extinguishers directly to the combustion zone in a short period of time (1–2 s) in the amount necessary to suppress the fire. The pulse supply method developed and implemented in various kinds of devices meets this requirement in terms of its potential capabilities.

Keywords: pulse supply, fire extinguishing, extinguishing agent, extinguishing powder, local protection

For citation: Kazakov A.V., Emelyanov R.A., Buhtoyarov D.V., Poltavets D.V. State of the issue of pulse fire extinguishing. Pozharnaya Bezopasnost‘ – Fire Safety, 2022, no. 3 (108), pp. 70–75. (In Russ.). https://doi.org/ 10.37657/vniipo.pb.2022.82.26.008.

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Information about the authors

 A.V. Kazakov – Candidate of Technical Sciences, Head of Department, vniipo22@vniipo.ru;

R.A. Emelyanov – Head of Research Center;

D.V. Buhtoyarov – Candidate of Technical Sciences, Deputy Head of Department, vniipo22@vniipo.ru;

D.V. Poltavec – Senior Researcher, vniipo22@vniipo.ru.

The article was submitted 12.01.2022; approved after reviewing 26.01.2022; accepted for publication 01.08.2022.