1) with H-finned tube economizer Economizer economizer tubes instead of light, you can increase the heat transfer area, reducing the number of pipe arrangement, thereby increasing the flue gas flow cross-section, so that the smoke reduce speed and reduce wear and tear. Because of the wear rate of the pipe and flue gas power is proportional to the flow rate of 3.33, so if you smoke speed reduced from 9m / s to 7m / s the wear rate will be reduced to the original 43%. Meanwhile experiments show finned tube itself is so concentrated in the middle row of fly ash to the role of the tube, so it has to reduce the wear and tear finned tube economizer role in the structure 2) H-type finned tube double pipe can be manufactured. " Double H "type fin tube, rigidity of its structure, and can be applied to a longer tube row occasions. 3). H-finned tube economizer-column layout, H-type fin the space is divided into several small areas, there are flow effect on the airflow, greatly reducing the wear 4) H type fins on both sides due to the formation of a straight channel, can be obtained The best results Sootblowing 5) compact space, greatly reduced the overall weight, reduce the cost of 6) energy saving, low power consumption: for the economizer turbines, at least two-thirds of the generator exhaust can reduce heat loss, ton steam consumes only 2 ~ 4kW 7) simple operation and maintenance; labor savings: economizer overall assembly factory, less moving parts, simple structure, easy to install. High level of automation, simple operation and maintenance can reduce the operating personnel. H-type (square) finned tubes (fin tube) Specification: φ32 * 4 φ32 * 5 φ38 * 4 φ38 * 5 φ42 * 5 φ48 * 5 φ51 * 5 φ51 * 6, etc. We can produce diameter: φ25 ~ φ65, wall thickness greater than 3mm; H-type (square) finned tubes (fin tube) material: carbon steel, stainless steel, ND steel, alloy steel. Spiral finned tubes (fin tube) Specifications: φ16 ~ φ106, wall thickness greater than 2mm; spiral finned tubes (fin tube) material: carbon steel, stainless steel, ND steel, alloy steel. Can be customized according to user specific requirements, we can also help customers design.