With the gradual maturity of the technology of waste heat recovery and utilization, the cost is gradually reduced. Along with the continuous increase of energy costs, with the continuous improvement of the awareness of energy conservation, more and more enterprises improve the efficiency of energy utilization through the reform of waste heat recovery and utilization, reduce manufacturing cost. So how to use waste heat statistics it? The main form of waste heat utilization At present, there are mainly two ways to utilize waste heat, the first is to use waste heat boiler to generate electricity, which is the main form of industrial waste heat utilization. The second is to recover waste heat by heat pump (bromine cooler) system, which is suitable for industrial and civil low temperature waste heat Recycling. Waste heat boiler is an important equipment in waste heat power generation system, and industrial waste heat boiler is one of the common forms. Industrial waste heat boiler applications are mainly used in iron and steel, nonferrous metals, coking, building materials, chemicals, textiles, printing and dyeing and paper and other industries. For example, the cement pure low temperature waste heat power generation technology is to utilize the waste heat of exhaust gas excluded from the clinker production line for power generation and recycling, which can increase the energy utilization rate of cement enterprises to more than 95% and reduce the environmental impact of exhaust gas waste heat. The utilization efficiency of waste heat resources is related to the temperature of waste heat resources. In general, the higher the temperature is, the higher the utilization efficiency is. According to the temperature of waste heat resources, it can be divided into high temperature waste heat (above 500 ℃), medium temperature waste heat (200 ~ 500 ℃) and low temperature waste heat (below 200 ℃). Waste heat reporting method in energy statistics report Recycling capacity of enterprises with excess heat needs to be reported in the "Energy Conversion and Recycling Report (Form 205-2)" to reflect the amount recovered. The specific approach is: First of all, fill in the reported heat as a "residual heat and pressure" energy variety, fill in the recycling amount; Second, if the amount of recovery of the enterprise is directly used in the process, it is necessary for the enterprise to continue to fill in the consumption of waste heat and pressure; if the enterprise recovers the waste heat for power generation, it needs to fill in the consumption of waste heat and pressure at the same time, If the waste heat recovery is used as a source for other third parties, the enterprise will no longer report the consumption, and the third party may fill in the consumption of heat or waste heat and pressure. Waste heat pressure fill in the existing problems Residual heat and pressure to fill in the difficulty lies in the imperfect measurement equipment, measurement difficult to implement. Waste heat and pressure recycling if there is sound measurement, you can follow the above method, you can directly fill in the relevant recycling, consumption data can be. If there is no perfect metering equipment, the amount of waste heat and pressure recycling needs to be based on the conversion efficiency of waste heat and pressure generator set equipment, the amount of energy input into the waste heat and pressure. If there is no waste heat and pressure generating set equipment conversion efficiency, please use the local average thermal power efficiency to push back the residual heat and pressure energy input. In the actual calculation process, the unit efficiency, generating coal consumption for the first time should choose the actual equipment operation data, such as the actual data without equipment operation, the industry or regional average data can be used instead.