♦  The use of H-shaped finned tubes as heat exchange elements has the characteristics of high heat transfer efficiency, compact structure, less dust accumulation, good wear resistance, and strong overall rigidity, which effectively eliminates waste heat recovery.
♦  The smoke inlet adopts patented manufacturing from Xi'an Jiaotong University, which ensures uniform smoke intake and effectively reduces wear and tear.
♦  The low-temperature section of the components in contact with the smoke is made of sulfuric acid resistant steel, which ensures uniform smoke intake and effectively reduces wear.
♦  There is a maintenance gap (usually 800-900mm) between the high temperature section and the low temperature section to facilitate maintenance.
♦  Modular design method, easy and reliable installation, simple operation, and high efficiency.

♦  Reliability: Therefore, the selection of design parameters should first consider the reliability of unit operation.
♦  Economy: On the premise of reliable operation, maximize the heat exchange temperature difference, reduce the volume and weight of the heat exchange surface, and minimize equipment investment. On the basis of technical and economic comparison, the reasonable design of the reduction value of smoke temperature should not be less than 20 ℃. If the flue gas temperature is excessively reduced, in addition to the limitation of the fan pressure head margin, the energy saving per unit of flue gas temperature drop will rapidly decrease, and the investment payback period will also be greatly extended.
♦  Reasonable optimization: Strive for a high energy level for heat recovery. By coupling the boiler system and steam turbine system reasonably, the position of the water intake and return points of the low-temperature economizer can be optimized reasonably.
♦  Safety: Reasonably control the metal wall temperature of the heating surface and avoid the dew point of the flue gas. This is a prerequisite for ensuring that the heating surface does not leak, so the plan must first meet this condition.

H-type is used as the heat exchange component. High heat transfer efficiency. Compact structure. Characteristics such as less dust accumulation, good anti-wear performance, and strong overall rigidity. The exhaust waste heat recovery effect is good. There is a maintenance gap (usually 500-600mm) between the high temperature section and the low temperature section to facilitate maintenance. The low-temperature section of the components in contact with the flue gas is made of sulfuric acid resistant steel, ensuring a service life of at least 10 years for the entire machine. The smoke inlet adopts a guide plate and wear-resistant pipe structure, which ensures uniform smoke intake and effectively reduces wear.