Textiles: fluid treating apparatus – Machines – Combined
Patent
1976-10-14
1979-05-01
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
Combined
34 90, 68 27, 134107, D06F 3100, D06F 3904, D06F 5800
Patent
active
041517300
ABSTRACT:
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 being 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 circulating 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 automatically 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.
REFERENCES:
patent: 2143874 (1939-01-01), Hagenson et al.
patent: 3771238 (1973-11-01), Vaughn
Coe Philip R.
Lowe James L.
Mouzavires William E.
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