| 摘要 |
A heat recovery system (2) for the recovery of heat from waste water, the system comprising a waste water receptacle (4) for receiving waste water, the receptacle being adapted for connection to a waste water drainage pipe, the waste water receptacle consisting at least partially of a heat exchanger comprising an input port connectable to a mains conduit for the flow of incoming water, and an output port for removing water from the exchanger wherein the mains conduit is in fluid communication with at least two subsidiary conduits extending at least partially between the input and output ports, the at least two subsidiary conduits having a cumulative internal cross-sectional area substantially equal to or greater than that of the mains conduit but having a greater heat exchange contacting surface area thereto whereby heat energy from the waste water received on the receptacle transfers heat energy directly to the incoming water in the at least one conduit. The receptacle may be a shower tray (4) and incoming water is pre-heated through the heat exchanger before delivery to the shower head (8). |
