Development of a Water-cooled Anti-heat Suit


The purpose of the work is to create a water-cooled rescuer anti-thermal suit to protect his body from ithe ncreased thermal effects during fire fighting, liquidation of burning gas and oil fountains, localization and liquidation of the consequences of emergencies at fire and explosion hazardous enterprises of the Russian Federation

The research used an integrated approach based on the analysis of the results obtained by generations of authors of the Research Institute of Mining «Respirator» during the development of suits for the space, metallurgical and coal industries of the country.

Based on the previously acquired experience in the development of heat protection suits, not only the external heat flows affecting the rescuer, but also the heat generated by the oxygen isolating respirator and the work performer were taken into account. In this case, the basic laws of thermodynamics, thermal conductivity and hydraulics were applied. The results obtained when determining the parameters of the anti-heat suit were confirmed empirically during testing of the product in a heat chamber and at the testing ground of the Research Institute of Geodynamics «Respirator».

Fundamentally new anti-thermal suit with open-cycle water cooling was developed, which is confirmed by the received patent for a utility model. When determining the amount of water required to remove excess heat from the undersuit space, the heat released during air regeneration, as well as the heat absorbed by the R-30 parts and the radio station located in the undersuit space, were considered for the first time.

To ensure safe working conditions in the suit at different temperatures, a water flow rate was established to ensure a decrease in the temperature of the environment in the space under the suit (about 4·10–3 m/min). Moreover, based on thermal sensations, the rescuer can himself regulate the flow of supplied refrigerant depending on the seasonal temperature fluctuations (for water supply in the range from 8 to 24 °C in February and August, respectively).

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DOI: 10.24000/0409-2961-2023-11-78-83
Year: 2023
Issue num: November
Keywords : rescuer fire-fighting emergency situations thermal effect anti-heat suit water cooling fire and explosion hazardous enterprises water curtains
  • Zavyalova E.L.
    Cand. Sci. (Eng.), Assoc. Prof., Head of the Sector, Moscow State Academy of Veterinary Medicine and Biotechnology — MBA named after K.I. Skryabin, Moscow, Russia
  • Zavyalov G.V.
    Cand. Sci. (Eng.), Assoc. Prof. Russian State Agrarian University — Moscow Agricultural Academy named after K.A. Timiryazev, Moscow, Russia