| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a circulating hot water supply system capable of simplifying construction work of hot water supply piping, reducing construction costs, narrowing a piping space, discharging hot water immediately after turning on hot water supply taps, and solving the problem of generation of waste water. <P>SOLUTION: The circulating hot water supply system includes a hot water storage tank 2, the plurality of hot water supply taps 3, a hot water delivering single pipe 4 and a water supply pipe 5 connected with the hot water storage tank 2, a hot water return single pipe 7 connected with an intermediate part of the hot water delivering single pipe 4 at its tip, and a hot water delivering/hot water return common pipe 10 connecting the hot water supply taps 3, the hot water delivering single pipe 4 and the hot water return single pipe 7 through a hot water supply header 8. The hot water delivering/hot water return common pipe 10 is formed by partitioning an internal circulation passage of the common pipe 10 into a hot water delivering pipe conduit 16 and a hot water return pipe conduit 17 by a partitioning wall 15 continued in the pipe axial direction, and terminals of the hot water delivering pipe conduit 16 and the hot water return pipe conduit 17 are faced to the inside of hot water inflow ports of the hot water supply taps 3, respectively. The inside of the hot water supply header 8 is divided by a cylindrical portion partitioning wall 21 and a plurality of branched portion partitioning walls 2 to be divided into a plurality of segmented hot water delivering passages 23 arranged in the cylindrical shaft direction and a hot water return passage 24 continued to the segmented hot water delivering passages 23 of ends in the cylindrical shaft direction at its end. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
