Fomich S. City system of centralized hot water supply with vacuum deaeration

The dissertation is devoted to solving problems aimed at increasing the efficiency of operation of existing, resuscitation of emergency and not involved centralized hot water supply systems. An analysis of the work of domestic and foreign systems of centralized hot water supply is carried out. The methods of protection of pipelines from internal corrosion and the effect of circulation on the durability and reliability of systems are considered. The stability of system operation with the use of tank-accumulators and vacuum of aeration device with battery tanks and floating sealant film are analyzed. Particular attention is paid to the dynamics of water consumption in the seasonal, monthly, daily and hourly periods taking into account the failures in work and their causes. The basic model of unevenness of hot water consumption in the urban area is scientifically substantiated and developed. The coefficient of unevenness of consumption of hot water is determined. In this work, a method for protecting the pipeline from secondary contamination with oxygen deaerated hot water, located in tank-accumulators using a film of a special chemical composition, has been developed. The proposed technical and technological decisions aimed at increasing the efficiency of design, construction and operation of centralized hot water supply systems.