| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat storage tank and a heat storage system wherein high efficiency heat storage/dissipation can be achieved without providing limitation to the number of the heat storage tanks, and piping construction work at a building stage is effectively achieved. SOLUTION: The present invention is characterized in that there are included a tank where there are disposed in parallel two groups of series tanks composed of a plurality of single tanks, a high temperature side branch piping 15, a high temperature side distributor 17, a low temperature side branch piping 14, and a low temperature side distributor 18 branched and disposed on each single tank corresponding to a high temperature side header piping 13 and a low temperature side header piping 12 connected to a main piping 19 serving to circulate heat source water. The high temperature side header piping 13 and the low temperature side header piping 12 penetrate the foregoing series tank groups, and in a pipe line extending from a main pipe connection section of the header piping to an opening section side end section a ratioΔPmin/ΔPmax of a piping resistance value exceeds a predetermined value (whereΔPmax is the maximum piping resistance andΔPmin is the minimum piping resistance).
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