Ground Air Heat Exchanger
What is the air heat exchanger?
Between two parallel thin metal plates (flat partitions), corrugated metal fins are sandwiched, and both sides are sealed with side strips to form a unit body. At present, the commonly used fin forms are straight fin, aluminum tooth fin and porous fin.
What is its characterestic ?
Modular design, according to the need to set high temperature, medium temperature, low temperature section, each section choose different materials, solve the difficulty of high temperature heat recovery and low temperature dew point corrosion problem, the equipment can be assembled on site or replace the module.
The compact structure is easy to realize large-scale, and the floor space is only about 1/2 of the column tube type, which can meet the requirements of large-scale installations.
Why air heat exchanger is important?
Energy-saving: The recovery of waste heat by the heat exchanger increases the enthalpy of the cold fluid, which effectively utilizes the waste heat, improves the utilization of thermal energy, and reduces the consumption of other energy sources.
Environmental protection: fully recover the heat of factory exhaust gas to reduce the impact on the environment and achieve the purpose of environmental protection.
Application
The air preheater
It is generally installed on the tail flue of the boiler, and both the flue gas and air sides use finned tubes for heat transfer to enhance the heat transfer performance. Heat pipes are generally used as heat transfer elements. In order to prevent dew point corrosion, while maintaining good heat transfer characteristics of the finned tube, a special air preheater consisting of two parts, the evaporator and condenser, which constitutes a separate phase heat transfer system, can be used. The special heat exchanger, the evaporator is located in the flue below, the condenser is located above the flue, the evaporator and condenser are composed of finned tube bundles, each row of tube bundles by the upper and lower link box interconnection.
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