Perfection of individual heat protective means of rescuers
Most often rescuers working at extinguishing fires are subjected to high air temperatures and intense thermal radiation. Particularly difficult is the microclimate The heat conditions when there gets more heat into the body than out of the body are particularly difficult by removal of excess radiation, moisture evaporation, heat exchange with the environment. Special heat protective means must be used under such extreme conditions. The reasons for thermal lesions and their complications are the lack of protective effect of the heat protective means, the rescue units are equipped with, and incomplete knowledge of the thermal factors and therefore erroneous actions of the executives responsible for firefighting. Therefore, improving the ways and means to protect rescuers from the negative impact of heat is important and urgent. Such passive methods as reflection of rays of heat isolating layers are mostly used in the firefighters’ protective equipment. Their disadvantages are a limited security resource that is just tens of seconds and a great probability of violating the integrity of the shells because of heating, aggressive chemicals and light radiation. The article proposed to improve the cooling system for the human body by adopting a flowing cooling scheme with heat absorbers located in the underwear space. This will ensure a practically unlimited resource of a coolant and increase the term of the heat protective means action. To increase the heat removal from the surface of the body by sweat evaporation it has been proposed to provide moisture sorption in underwear by installing absorbing elements. Water irrigation or foam barrier formation can solve the problem of thermal destruction of the outer shell cloth. Using the proposed constructive solutions will make it possible to increase the security resource of heat protective means and reduce the risk of their ruining during emergency works