D - Textiles – Paper – 06 – F
Patent
D - Textiles, Paper
06
F
68/43
D06F 31/00 (2006.01) D06F 39/00 (2006.01) D06F 39/04 (2006.01) D06F 58/00 (2006.01) D06F 58/20 (2006.01) D06F 95/00 (2006.01)
Patent
CA 1082477
ABSTRACT OF THE DISCLOSURE A laundry dryer source of heat for providing warm gas to dry laundry is utilized to heat water for laundry washer use, and is particularly suited for coin operated laundries. In the illustrated embodiment each dryer has a gas burner and a water coil is in the flame area of the burner, the coils be- ing connected in circuit between a cool water outlet and a heated water inlet of a typical automatic water heater tank. A water circulating system includes a pump or pumps for circulat- ing cool water from the tank through coils and returning heated water from the coils to the tank whenever any of the dryers are in operation. One embodiment of the circulating system assures continuous water flow through the plurality of dryer water coils during heating operation by providing a substantially equal pressure differential between the cold water inlet and the hot water outlet of each of the coils. A cross-over between hot and cold water headers may be provided intermediate the series of dryer coils for increasing the temperature of the hot water delivered to the hot water tank. Since most laundry is promptly placed in a dryer after washing, during high or low capacity operation of the laundry the quantity of heated water is auto- matically regulated by dryer operation to the overall demand for hot water by the washers, the automatic water heater tank providing heated water during sudden surges in washer operation before the dryers are in operation sufficiently to supply the hot water.
265414
Hewitt Neville S.
Wendel Ion L.
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