| 摘要 |
<p>A sewage heat exchange system that supports online cleaning and automatic fouling removal. Devices such as a grit chamber (19), a water intake pool (18), a hair filter (7) and the like filter contaminants. Sewage after filtering and solid particles separated from a solid-liquid separator (16) enter a sewage heat exchanger (15) together to join heat exchange. Meanwhile, control valve b (11), control valve c (12), control valve d (13) and control valve e (14) are respectively arranged in four sewage pipes connected to the sewage heat exchanger (15). Through switching of control valve switches, back flush on the sewage pipes is implemented. The sewage heat exchange system completely solves problems that the pipes are blocked by the contaminants, heat exchange devices are blocked by hairs, heat exchange devices deteriorate in performance or are faulty, and the like, greatly improves system heat exchange performance, and ensures system security, reliability and stability.</p> |
