Use in Saodanfoss

Compared with the mechanical performance of the fan of the same level, the general axial flow fan has a light weight. Sao Danfoss accessories are about 50% to 60% of the centrifuge machine. The flywheel torque is small, the steel consumption is small, and the infrastructure installation cost is low. If the structural component is 3 to 4 times (n=＜1000r/mim) of the flywheel torque of the fan, the base structure of the centrifugal fan will consume about 4 times more data than the adjustable blade axial flow fan, which is more than the static blade adjustable shaft The flow fan consumes about 1.5 times more data.

From the perspective of the mechanical performance of the fan, the adjustable-blade axial-flow fan is the best, followed by Sao PV90R100 hydraulic pump accessories, the static-blade adjustable axial fan, and the centrifugal fan again.　　

Regarding the protection and maintenance of the fan 1, the Caesar air compressor has a messy structure of the axial flow fan with adjustable moving blades, and adds a set of messy conditioning organization and hydraulic oil system, which requires high maintenance technology. It is generally required that the three-lobe roots vacuum pump and conditioning equipment of the dynamic adjustment fan hydraulic oil and lubricating oil station should be imported as a whole with high reliability. Following the accumulation of operation protection experience, the workload of fan maintenance in recent years has not been large. For minor maintenance of the fan, only the wear condition of the blades needs to be checked. During the overhaul, even if the blades are replaced, only the fasteners of the blade roots need to be removed.　　

Static blade adjustable axial flow fan, when the maintenance needs to change the blade, the new blade needs to be replaced on the meridian surface. The work of Sao PV90R075 hydraulic pump parts cannot be carried out on the site of the power plant. It needs to be shipped back to the manufacturer for replacement, and the price is also Higher.

In the maintenance of centrifugal fans, due to the heavier rotor of the thermal jacket structure, in addition to regular blade repair welding, it will be difficult to replace the impeller.