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Methods for slowing down corrosion of axial fans

Axial-flow fan is used in chemical raw materials for a long time. There is corrosion problem in axial flow wind. How can we prevent or slow down the corrosion of axial fans? You can refer to the following three measures. First, choose the right material. Because of different materials and separation requirements, different models are needed. After determining the type and main parameters, according to the corrosion resistance of different materials in different environments, and synthesizing their physical and chemical properties, cost performance and other factors, axial-flow fan is a fan with two diameters in front and back, the same hub ratio and the opposite rotation direction. The speed of the two impellers is generally the same, but they can be different. Generally, they are driven by two motors. The counter rotating axial flow fan is a better technical design plan for the two stage axial flow fan, which is mainly used for ventilation and ventilation in mines, tunnels and ships. It has the following two characteristics: (1) the anti wind performance is good. In the work of counter rotating axial flow fan, as long as the rotation direction of the impeller is changed, the purpose of reversing wind can be effectively achieved, so that the inverse wind structure and the use of this fan are the most convenient. Determine the strength part material from the fundamentals. From the perspective of the material itself, the target material is safe.
  
Two. Axial fan The design of the mechanism. An excellent design can extend the service life of the equipment and ensure the safety of the equipment. For structural design, the most easily accelerated corrosion design defects are stress concentration tendency and gap environment. Sometimes, although the corrosion rate of the metal immersion solution is small, the gap is formed, and the chemical and electrochemical state of the inner solution changes, causing serious crevice corrosion. Three. Surface protection measures for axial fans. A basic idea of controlling corrosion is to isolate the corrosive environment. In the design of axial flow fans, surface treatments are often adopted, such as flanges, galvanizing, chrome plating, electroless plating and so on.


Tags:   Axial fan   Smoke exhausting fan for fire fighting   Exhaust fan
Clicks: Update time: 2017-08-27 11:19:14 [ Print this page [ Close ]
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