| 摘要 |
PROBLEM TO BE SOLVED: To provide a circulation type 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 a hot water supply tap, and solving the problem of generation of waste water. SOLUTION: In this circulation type hot water supply system where the hot water in a hot water storage tank 2 storing hot water for hot water supply, is delivered to each of hot water supply taps 3 through a hot water delivering pipe, and the hot water from each of hot water supply taps 3 is returned to a hot water storage tank 2 side through a hot water return pipe to be circulated, a hot water delivering/hot water return common pipe 10 formed by dividing 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 16 continued in the pipe shaft direction, is used as the hot water delivering pipe and the hot water return pipe, an end portion of the hot water delivering/hot water return common pipe 10 is connected with the hot water supply tap 3 in a state that ends 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, and the hot water from the end of the hot water delivering pipe conduit 16 is U-turned to the end of the hot water return pipe conduit 17 in the hot water inflow port to be circulated to the inside of the hot water inflow port 27 when the hot water supply tap 3 is closed. COPYRIGHT: (C)2008,JPO&INPIT
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