Waste heat refers to the sensible heat and latent heat that have not been reasonably utilized in the original design of the energy-consuming devices of industrial enterprises that have been put into operation, because they are limited by factors such as history, technology, and operating concepts. It may appear in high temperature exhaust gas, cooling medium, waste steam and waste water, high temperature products and slag, chemical reaction process, combustible exhaust gas waste liquid and other waste materials, etc. According to relevant surveys, the total waste heat resources of various industries account for about 17% to 67% of their total fuel consumption, and the recyclable waste heat resources are about 60% of the total waste heat resources. The waste heat recovery device is a specially customized equipment for recycling waste heat or waste cooling. http://www.tlw-heatexchanger.com/product/waste-heat-and-cooling-recovery-device