Fan compared the mechanical properties of the same level, average axial flow fan, light weight, Mr Obama danfoss parts is about 50% ~ 60% of centrifuge machines, the flywheel moment of small, small steel consumption, construction installation, if the fan is the foundation of structure weight 3 ~ 4 times of the flywheel moment (n = < 1000 r/mim) meter, the infrastructure of the centrifugal fan will more than moving blade adjustable axial flow fan about 4 times of the material consumption, consumption more than static blade adjustable axial flow fan is about 1.5 times of the material.

 　

From the mechanical performance of the fan, moving vane adjustable axial flow fan is the best, saao PV90R100 hydraulic pump accessories stator vane adjustable axial flow fan followed by centrifugal fan again. In the maintenance and overhaul of fan 1, cesar air compressor, although the structure of rotor vane adjustable axial flow fan is complex, adds a set of complex adjustment mechanism and hydraulic oil system, maintenance process requirements are high. It is generally required that three-leaf roots vacuum pump and regulating device of hydraulic oil and lubricating oil station of dynamic regulating fan be imported as a whole with high reliability. With the accumulation of operation and maintenance experience, the fan maintenance workload in recent years is not large, the fan minor repair only needs to check the wear condition of the blade, even if the blade is replaced during the overhaul only need to remove the root fastener, maintenance is more convenient.Stator vane adjustable axial flow fan, when the maintenance needs to change the blade, need to replace the position of the meridian welding new blade, saao PV90R075 hydraulic pump accessories this work can not be carried out on the site of the power plant, need to be shipped back to the factory for replacement, the price is also high. Centrifugal fan maintenance, due to the heat jacket structure of the rotor is heavier, in addition to regular blade welding, need to replace the impeller, will encounter greater difficulties.