The roof shaft flow market also occupies a large position. The airworm is made of steel plates and the fans are made of aluminum plates. It is widely suitable for the ventilation of hotels, restaurants, cinema, office, laboratory, factory, residential houses and other buildings.
Installation and maintenance of the roof shaft fans:
1. Improper mechanical installation, misplaced components, and large pre -load.
2. The axis system is bad.
3. Improper adjustment of machine geometric parameters (such as coordination gaps, surplus and relative positions).
4. Large stress, the machine changes dynamic characteristics and installation accuracy in the working state.
5. Improper placement of rotor for a long time, changing the precision of the dynamic balance did not be maintained in accordance with the regulations, destroying the original complexity and accuracy of the machine.
Precautions for the roof shaft fans:
1. When installing, you should first check whether the connection of each part is firm, whether the rotation is flexible, etc., and check whether there are debris in the case.
2. When the fan is connected to the foundation, and the import and export air duct connection, the naturally matches the natural kiss. It must not be forcibly connected. The weight of the air duct must not be concentrated on the case to avoid the deformation of the case.Import and export duct application hose connection, and pay attention to the horizontal position of the fan.
3. After the installation, the leaf wheel rotates to check whether it is flexible, and it should be adjusted in time when it is found.
4. After installation, trial transportation can be performed after normal.The current should be strictly controlled during the trial operation and cannot exceed the rated value.To prevent the motor from burning due to overload, when the fan starts and trials, it must be carried out without loading.If the situation is good, gradually open the valve to the prescribed work conditions.