High efficiency of heat exchange, the low cost of equipment, and the recycle of the heated water .

Heat recovery system includes two types, air-air heat exchange and air-water heat exchange. The multi-step heat recovery unit can fully utilize the energy after being best on the requirements of environment and process technology. Air-Air heat recovery unit heats the air by using the remaining exhaust heat from hood so as to reach the purpose of recovering the heat energy. The heat recovery unit is in pipe-laid structure, which is easy to clean and lasts a long life. The pipe and the panel is connected by the expanded pipe or special rubber-alloy joint. Air-Water heat recovery unit heats the process water or ventilating water by using the heat of exhaust air. It has direct and indirect heat exchanging types.

thermal heat exchanger