HEAT STORAGE TANK

摘要

PURPOSE:To contrive cost reduction without any flow switching control system for bringing in and out cold and hot water for a heat storage space by arranging a cylindrical body in which communicating holes are drilled in the inside and the lower part of a tank and a heat exchanger is constituted together with a heat medium tube so that a space is formed between the whole periphery of the cylindrical body and the tank. CONSTITUTION:Communicating holes 21 are drilled in the inside and the lower part of a tank 20 and a cylindrical body 22 in which a heat exchanger 20 is constituted together with a heat medium tube 24 is arranged so that a space is formed between the whole periphery thereof and the tank. A flow space 26 for flowing at the side of the cylindrical body from upper piping 13 and communicating with the inside thereof through communicating holes is formed and the upper piping 13 is made introducing alone. Further lower piping 14 is extended up to the space of the inside of the cylindrical body and an inlet opening 14a for bringing-out at the extended part is positioned to make the piping 14 bringing-out alone. Thereby the upper piping can be made bringing-in alone and the lower piping bringing-out alone without dependence on a temperature layer making method in the case of cold and hot radiation. As the result, a four-way valve for switching the flow of bringing-in to bringing-out, its control system piping therewith and the like are not needed.