Waste Heat Recovery

Waste heat is a kind of energy which is not utilized in the energy utilization equipment under certain economic and technical conditions. It is redundant, waste of energy. The utility model comprises a waste heat of high temperature waste gas, waste heat of the cooling medium, waste heat of waste steam, high temperature products, residual heat of the slag, and residual heat of chemical reaction, etc.. According to the survey, the total waste heat resources of the industry accounts for about 17%~67% of the total fuel consumption, and the waste heat recovery is about 60% of the total waste heat. Waste heat recovery technology of medium and high temperature is relatively simple and widely used, but the low grade waste heat with low temperature has huge recovery space, but it is difficult to recover.

With the development of China's economy and the improvement of environmental protection requirements, more and more oil and gas fired boilers are put into use. The new energy saving policies and standards put forward new requirements for energy conservation. Because of the shortage of oil and gas resources, the efficiency of boiler is becoming more and more urgent. One of the most effective ways is to use boiler exhaust heat. Most of the boiler flue gas temperature at 200 degrees Celsius, reducing exhaust gas temperature through the exhaust heat recovery, and recovery of latent heat of vaporization of water vapor can improve the efficiency of the boiler flue gas, 5-15%, saving benefit is quite remarkable, but also changed the atmospheric environment.

The application of heat recovery technology of Alves Denmark is already mature, advanced and mature technology of heat recovery of waste heat recovery and utilization of integrated system can make these low grade waste heat recovery and comprehensive utilization, has been applied to flue gas recovery and treatment, cascade use of geothermal water, industrial and domestic sewage waste heat utilization, industrial circulating cooling water heat recycling, industrial waste heat recovery, heating cogeneration revamping etc..