Device for recovering waste heat from hot water
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 4, 2025
Grant Date -
Sep 7, 2023
app pub date -
Jul 5, 2021
filing date -
Jul 5, 2021
priority date (Note) -
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Abstract
Disclosed is a device for recovering waste heat from hot water. The waste water heat recovery device includes heat exchange units each having a waste water pipe part along which waste water as the hot water flows and a raw water pipe part along which raw water as cold water flows, while being located inside the waste water pipe part, and a rotation driving part for rotating the raw water pipe parts. Each raw water pipe part includes a rotary shaft, a spiral blade attached to the outer peripheral surface of the rotary shaft, and a raw water pipe spirally wound on the outer peripheral surface of the rotary shaft to flow the raw water therealong, while being disposed along the space formed by the spiral blade on the outer peripheral surface of the rotary shaft. While the raw water pipe is rotating, foreign matter flowing along the waste water pipe part is discharged by means of the spiral blade, and the raw water pipe is disposed below top of the spiral blade to thus have no contact with the inner peripheral wall of the waste water pipe part.
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