WATER RECLAMATION SYSTEM TYPE DISTRICT HEATING

摘要

PROBLEM TO BE SOLVED: To improve energy saving, water saving, and lifelines, and prevent water pollution by parallely supplying treated water and vapor from a center where there are jointly provided a water service plant and a cogeneration plant to a green space serving also as a refuge space for each separate district. SOLUTION: A center 7 where a cogeneration plant 8 and a water reclamation system plant 9 are jointly provided is provided in the earth of a green space serving also as an escape space, and low pressure vapor produced utilizing waste heat of the cogeneration is used as a district heating heat source through a vapor piping 5. Hereby, the need of a gas piping is eliminated. Cooking is electrified. With low pressure vapor there is no trouble of a secondary disaster even if a person is wet, and provided a person gets wet, the vapor is easily found because its being white and also a repairment is eased. In addition, provision of a treated water supply piping 4 permits the use of a water supply line of another system other than public water supplies to hereby improve safety upon any disaster. Further, also for district heating safety and security are ensured because hot water supply is achieved only by mixing vapor with treated water. Since also sewage may be sufficient to be supplied up to the center 7, facility only requires a relatively short distance to ease construction.