SUBSTANTIATION OF TECHNICAL REQUIREMENTS FOR ROBOTIC COMPLEX OF MULTI-MODE FIRE EXTINGUISHING

Abstract

The purpose of the study is to substantiate the technical requirements for a robotic complex
designed to eliminate man-made emergencies associated with the need to eliminate fires. These
emergencies can occur, first of all, in radiation and chemical accidents, as well as in accidents at
fire and explosion hazardous facilities. The elimination of such emergencies, as a rule, is associated
with an increased risk for firefighters and rescuers and requires the use of heavy equipment.
The article proposes a campaign that involves considering two possible options for using the complex:
when extinguishing a fire over an area in the modes of a single cycle with a transportable
supply of water and when extinguishing fires in a long-term fire extinguishing mode. At the same
time, it is proposed to consider the areal fire extinguishing rate and water consumption as the main indicators for assessing the effectiveness of the complex. Under the areal rate of fire extinguishing,
it is proposed to understand as the ratio of the fire extinguishing area to the time. Water
consumption during fire extinguishing is a single value for all links in a serial chain, in the form of
which a scheme for supplying water to a fire source can be represented. For the first option, the
amount of water flow is sequentially calculated, which depends on the pressure that is created in
front of the water shaft. This indicator primarily depends on such factors as the water pressure
generated by the pump, the pressure loss in the hose line, the excess or decrease of the water barrel
in relation to the pump. According to the results of calculations for each link, the obtained
indicators are summarized. For the second option, the capabilities of the robotic complex for longterm
fire extinguishing involve the use of an existing reservoir of natural or artificial origin as a
source of fire extinguishing agent. At the same time, the number of factors affecting the areal rate
of fire extinguishing and water consumption increases significantly. To simplify the calculations, a
nomogram has been developed that allows you to calculate not only the above indicators, but also
determine the predicted values of the time required to extinguish the fire. The data obtained as a
result of the above calculations make it possible to finally realize the main task of the studies under
consideration, that is assessment of the capabilities of a promising complex of a robotic complex
for extinguishing fires at radiation-, chemical- and explosive objects. This problem is proposed
to be solved by forming the technical forms of the RTK, which can be created to solve fires
at the above objects, and then by a comparative assessment of their qualities.