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.
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