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    • 2. 发明专利
    • METHOD OF AND UNIT FOR RECOVERY OF WASTE ENERGY
    • CA1225987A
    • 1987-08-25
    • CA455896
    • 1984-06-05
    • MOLITOR VICTOR D
    • MOLITOR VICTOR D
    • F24H1/00
    • Transfer waste water from wash cycle of dishwasher to collection tank beneath heat exchanger surrounding a hollow central space, pass waste water through dual tube heat exchanger in countercurrent relation to cool feed water for hot water heater in central space of heat exchanger, supply heat to water in heater, then hot water to dishwasher rinse. May circulate feed water downwardly through outer space of heater formed by partition, to lower end of inner space, in which heat is supplied by electrical immersion heaters. Ends of tank of hot water heater may be semi-oval, semi-elliptical or the like, while partition may be sufficiently close to bottom of tank to produce a wire-drawing effect as inlet water flows from outer to inner space, thereby maintaining light or small particles which fall off electric heaters in circulation, so that such particles will be removed with hot water. Heavier particles will collect in bottom of tank and may be drained periodically.
    • 6. 发明专利
    • UNIT FOR AND METHOD OF RECOVERY OF WASTE ENERGY
    • CA1236088A
    • 1988-05-03
    • CA455895
    • 1984-06-05
    • MOLITOR VICTOR D
    • MOLITOR VICTOR D
    • F24H1/00
    • A holding tank receives waste water from a dishwasher or laundry machine having a rinse cycle and at least one wash cycle. A pump moves the waste water through a heat exchanger at the same time that the rinse cycle requires hot water from a hot water heater. The cold water feed for the hot water heater is also passed in countercurrent heat exchange relationship with the waste water to provide warmed or heated makeup water at the same time that hot water is being withdrawn therefrom. The cooled waste water from the heat exchanger may be collected in a tank and supplied to any one or more of several additional devices, such as a water cooled refrigerant compressor, a grease extraction ventilator having water contact means, a waste food grinder, etc. The ventilator and compressor may also be placed in series, while the cooling water heated in the compressor is recirculated to the heat exchanger. A holding tank may be mounted directly beneath the dishwasher, or a holding tank and countercurrent heat exchanger may be placed in a common housing, with the holding tank beneath the heat exchanger and a pump to transfer the waste water from the holding tank to the appropriate tubes of the coils of the heat exchanger, from which waste water may be discharged into a discharge area adjacent the holding tank. A removable screen for the waste water may be provided above the holding tank. When a discharge area is adjacent the holding tank, the screen will be self-cleaning, due to flow of incoming waste water across the screen and into the discharge area, when the screen is occluded.