JPS6414532A - Heat accumulating tank - Google Patents

Abstract

PURPOSE:To permit the efficient heat accumulation of cold (hot) water, produced in a primary side, and the supply of high-quality cold (hot) water to a secondary side, by a method wherein a high-temperature chamber is provided with moving up-and-down while following the water level of a tank and provided with openings, opened immediately below the water level, while a low-temperature chamber is provided with an opening, opened near the bottom of the tank. CONSTITUTION:The high-temperature side pumping and discharging unit of a heat accumulating tank is provided with a high-temperature chamber 1 while the lower ends of a discharging pipe 2, pumping pipe 3 and the pumping pipe 4 for a primary side are opened in the chamber 1. A plurality of floats 9 are attached to the outer peripheral rim of a lid 6 while the floats are afloated in the heat accumulating tank so as to move up-and-down while following the level 10 of water in the tank and the openings 7 thereof are opened immediately below the level of the water at all times. The pumping and discharging unit of a low-temperature side is provided with a low-temperature chamber 14 and the lower ends of the discharging pipe 15, the pumping pipe 16 and the pumping pipe 17 are opened in the chamber while the low-temperature chamber 14 is provided with the opening 20. According to this constitution, mixing of the cold (hot) water in the heat accumulating tank, which have different temperatures, may be restrained as much as possible whereby heat accumulating efficiency as well as heat utilizing efficiencies in the primary and secondary sides may be increased.