Flue gas waste heat recovery device is a gas heat exchanger of energy saving and emission reduction equipment. Because it is often installed in the flue of boiler, it is also called boiler flue gas waste heat recovery device and flue heat exchanger. How does the equipment achieve energy-saving benefits? Let's have a look. First, the principle of flue gas waste heat recovery device The flue gas in the boiler industry is the main source of energy waste, and the flue gas discharged from the boiler accounts for a considerable part of energy consumption, especially in printing and dyeing, drying, kiln, glass and other industries. The flue gas waste heat recovery device exchanges heat with other media and converts it into usable heat. There are two kinds of thermal media that can be converted into water and gas. According to different media, flue gas waste heat recovery device can also be divided into gas-water waste heat recovery and gas-gas waste heat recovery.

烟气余热回收器

Second, the function of flue gas waste heat recovery device is 1. Improve thermal efficiency. The effective thermal efficiency of boilers is usually very high, and flue gas is the main heat. Installing a flue gas waste heat recovery device at the tail can effectively improve the thermal efficiency of the boiler, reduce heat loss, greatly reduce the exhaust gas temperature and reduce thermal pollution. Flue gas waste heat recoverer 2. Reduce carbon dioxide emissions. The main component of boiler flue gas is carbon dioxide, while sulfur dioxide, nitrogen, carbon monoxide and various mixtures. The installation of flue gas waste heat recovery device can increase the economic and social benefits of enterprises, save carbon dioxide emissions every year, save energy and promote economic sustainable development under the condition of recycling waste heat resources. Flue gas waste heat recovery device is an environmental protection device, which has high economic benefits for enterprises and society.

烟气余热回收器

The waste heat boiler recovers the waste heat released from the flue gas by adding a heat exchanger in the flue gas. These devices can usually reduce the flue gas emission temperature 10℃ to 50℃. Under the same conditions, reduce the unit energy consumption at the same time. Similarly, boiler flue gas waste heat recovery equipment pays more attention to collecting heat energy in flue gas and using it in a cheaper and more suitable way. These devices usually use metal materials with high thermal conductivity and low specific gravity, such as aluminum or stainless steel. The advantage of boiler flue gas waste heat recovery equipment is that in traditional industrial production, a large number of waste gas, waste water and waste residue are discharged directly without treatment, resulting in resource waste and environmental pollution. Boiler flue gas waste heat recovery equipment can effectively recover high-temperature waste heat contained in flue gas and convert it into secondary energy, thus achieving the purpose of energy saving and consumption reduction. At the same time, pollutants such as dust in tail gas and flue gas pose a threat to the environment. If they are not treated, they will be directly discharged into the air, thus aggravating the problem of urban air pollution. Boiler flue gas waste heat recovery equipment can reduce carbon emissions.

烟气余热回收器