Application of Low-Temperature Economizers in the Industrial Sector？

The application of low-temperature economizers in the industrial sector is quite extensive. Especially against the backdrop of increasingly stringent energy and environmental protection requirements, their application has achieved rapid development. Low-temperature economizers primarily recover heat and reduce flue gas temperature by condensing moisture in high-temperature flue gas from exhaust emissions into water vapor, thereby improving thermal efficiency. Structurally, such equipment usually adopts a spiral coil tube design, with numerous narrow coiled tubes inside to more effectively recover heat from flue gas.
In terms of application fields, low-temperature economizers have been widely used in multiple industries including the chemical industry, petrochemicals, thermal power plants, iron and steel, and cement production. Particularly in coal-fired power plants, low-temperature economizers have become a key means of flue gas waste heat recovery. By installing low-temperature economizers in the tail flue of boilers, the condensed water can be heated using boiler exhaust gas, while the exhaust gas temperature is reduced—realizing the recovery and utilization of flue gas waste heat. This application not only improves the thermal efficiency of power plants but also reduces coal and water consumption, and lowers environmental pollution.
In addition, low-temperature economizers also play an important role in flue gas treatment. They can lower the flue gas temperature to a certain limit, causing pollutants in the flue gas to condense into acid mist at low temperatures, which then adheres to the surface of dust particles and is captured. This improves dust removal efficiency and reduces PM2.5 emissions. Meanwhile, low-temperature economizers can also address the issue of "white smoke plumes" emitted from power plant chimneys. By adjusting the flue gas discharge temperature (note: the original text mentions "increasing the temperature," which is adjusted here for logical consistency, as the core function is to control condensation), the condensation of water vapor is reduced, thereby minimizing the formation of white smoke plumes.
To sum up, the application of low-temperature economizers in the industrial sector is well-established. They play a crucial role in improving energy utilization efficiency, reducing energy consumption, and cutting environmental pollution. With continuous technological advancements and the further promotion of applications, low-temperature economizers are expected to be applied and developed in more fields.