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US 4,422,932 AGranted
Device for the removal of heat from waste water
OwnerFelix Kalbererinventor
Life of this patent
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OwnerFelix Kalbererinventor
Estimating the term…
Waste water is led into a container (1) through an inlet (4) at the top. A connection (20) between the inlet (4) and an outlet (21) having a check valve (22) comprises adjacent to the inlet (4) two inverted frusto-conical hollow bodies (24, 25) which are directly connected to each other. The connecting surface between the two hollow bodies (24, 25) is formed as a coarse screen (26). A round fine screen (30), which diverges downwardly, surrounds the hollow bodies (24, 25). Heat exchangers (31) are located in the space between the fine screen (30) and the wall (2) of the container (1). An outlet (5) terminates at the bottom of the container and connects with a riser (6) and via a bend (7) with the sewerage conduit (8). Through the coarse screen (26) the waste water reaches the container, and the heat can reach the heat exchangers (31) through the fine screen (30 ), so that practically uncontaminated water is present at the heat exchangers, and the need for cleansing is substantially diminished.
Device for removing heat from waste water by means of heat exchangers (31) arranged in a container (1) traversed by said waste water, comprising an inlet conduit (4) at the top of said container (1) connected by a connecting means (20) with a first outlet conduit (21) disposed in the lower portion of said container (1) and having a check valve (22), said connecting means (20) comprising two superposed hollow bodies (24, 25) in a stepwise arrangement with one another and a coarse screen (26) arranged therebetween for closing an overflow opening, a second outlet conduit (5) discharging at the floor of said container (1) and connected through a riser (6) and a bend (7) with a sewerage conduit (8) into which said first outlet conduit (21) is also directed, and a fine screen (30) surrounding said connecting means (20) at least in the region of said coarse screen (26) being disposed in said container (1) between said connecting means (20) and said heat exchangers (31).
Dependencies are inferred from the claim text.