Cooling water waste heat recovery and utilization of refrigerating machines in cigarette factory

Aiming at the cold and heat counteracting problem generated by reheating supply air in primary return air all-air conditioning system using wet coil cooling and dehumidification, recovers the waste heat of cooling water in refrigerating machines to improve the supply air temperature. Taking a cigarette factory as an example, presents its air handling process, design scheme, selection of new air heaters, operation control and economic benefit analysis of the project.