Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means
Patent
1983-07-12
1985-07-16
Davis, Jr., Albert W.
Heat exchange
With alarm, indicator, signal, register, recorder, test or...
Remotely controlled inspection means
134 10, 134104, 134105, 134107, 134110, 165 47, 165119, 165165, 210108, 210411, 219306, 219312, 219314, F24H 100
Patent
active
045290326
ABSTRACT:
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relationship with the waste water to provide warmed or heated makeup water at the same time that hot water is being withdrawn therefrom.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. The holding tank may be mounted directly beneath the dishwasher, or the 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 in each instance. 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.
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Berkstresser Jerry W.
Davis Jr. Albert W.
Molitor Industries, Inc.
Van Valkenburgh Horace B.
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