There are many ways to recycle waste heat. Generally speaking, overall waste heat utilization is best, followed by direct utilization, then indirect utilization (such as waste thermal energy generation). The complete utilization is based on the waste heat quality, in order of temperature, at different stages. High-quality waste heat can be used for production processes or waste thermal energy generation; medium quality waste heat (120 degrees - 160 degrees) can be used. be produced using -30 degree ammonia absorption refrigeration equipment. 5 degree cooling capacity is used for air conditioning or industry; low temperature can be used for heating or using absorption heat pumps to increase the amount or temperature of heat for production anddaily; to use.
1. The sequence of rational use of waste heat steam is:
① Combined use of electricity and heating; ② Combined use of power generation and heat supply; ④ Using steam turbine to generate electricity or direct replacement The engine drives the pump ⑤ for daily use ⑥ uses waste heat absorption refrigeration equipment to realize co-production of heat, electricity and cold.
2. The reasonable use sequence of waste thermal hot water is as follows:
① For use in the production process all year round; ② Return to boiler and power generation;
3. The sequence of rational use of waste hot air is:
① Production use; ② Use of HVAC; ④ Energy production use;