Research Progress on Waste Heat Recovery and Utiliza-tion in Textile Industry
China is a major country in the textile industry,with the textile industry accounting for 4%of the country's manufacturing energy consumption.Under the"Double Carbon"policy,energy conservation and emission reduction in the textile industry are urgent.By introducing the various processing steps in the textile industry,it is clarified that the waste heat in the textile industry is mainly generated from the wastewater and ex-haust gas generated during the process.Based on the distribution of textile waste heat,this paper summarizes the research of domestic and foreign scholars on textile waste heat recovery,such as heat exchanger recovery of waste heat,heat pump recovery of waste heat,Organic Rankine Cycle(ORC)recovery of waste heat,and utilization of wastewater biomass for thermoelectric cogeneration.The characteristics and application cases of relevant waste heat recovery technologies are introduced,and the recovery period and efficiency of each case are summarized.Based on the current situation of textile waste heat recovery and focusing on future waste heat recovery technologies,this paper introduces and analyzes advanced heat recovery methods such as ther-moelectric technology,in order to have more efficient heat recovery technologies applied to the textile industry in the future.Due to the low systematization of waste heat recovery in textile industry,the clip technology of textile waste heat integration analysis is introduced.By establishing a heat recovery network,waste heat recov-ery can achieve better results.Finally,the research progress of textile waste heat recovery and utilization is summarized and prospected.
Textile Printing and DyeingWaste Heat RecoveryHeat PumpOrganic Rankine CycleGrip Analysis