Heat exchange – Structural installation
Patent
1993-01-19
1994-04-12
Ford, John K.
Heat exchange
Structural installation
165909, 165 66, 165119, 4598, 4545, 4665, F24D 1700, F24H 116, F24I 304, F28D 2100
Patent
active
053017455
ABSTRACT:
An installation for heat recovery from warm household drain water produced at household water consumption points, comprising a distributor tank, a first pipeline system which delivers warm household drain water from the consumption points to the distributor tank, a drain water channel, a heat exchange tank, and a second pipeline system which conveys warm household drain water to the heat exchange tank. The distributor tank has a first outlet leading into the drain water channel with a shut-off device which opens when the household drain water is below a predetermined temperature, and a second outlet into the second pipeline system when the household drain water in the distributor tank is above the predetermined temperature. Within the heat exchange tank is a coil containing cold drinking water which is heated by the household drain water. The cold drinking water which is heated by the warm drain water is conveyed from the heat exchange coil either directly to the consumption points by a third pipeline system, or to the consumption points via a boiler by fourth and fifth pipeline systems, while the household is conveyed either by a sixth pipeline (F) to the drain water channel (G) or to a drain water collecting tank 18 and from there by a pipeline (H) to the toilet flushing water tank.
REFERENCES:
patent: 3946802 (1976-03-01), Christenson
patent: 4422932 (1983-12-01), Kalberer
patent: 5143149 (1992-09-01), Kronberg
Kodron Rudolf S.
Seib Klaus
Thomas Hans W.
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