F Model Double Inlet Centrifugal Fan Radial Fan Blower With Variable Frequency Drive Motor

F Model Double Inlet Fan Forward Curved Centrifugal Fan Radial Centrifugal Fan Variable Frequency Drive Motor Good Job

f model: Fault and treatment of large double suction

1.reduce fan function, such as system pressure or insufficient air volume, by in and out of the valve blade does not rotate or commonly in into the outlet in aggregate jams, cause caused by a poorly ventilated, the other is caused by wear or inlets, blades and untight seal leak, the third can be the instrument display speed do not tally with the actual, exclude the above questions one by one check, can be restored, It should be emphasized that when repairing the wind blade, the material with similar base material and welding rod composition should be repaired. Before welding, the original wear-resistant welding layer should be removed, otherwise it is easy to cause accidents due to weld cracking. A factory once broke the steel plate on the repair welding due to weld cracking and broke the casing and injured people, so it must be paid attention to.

2 .Fan bearing heating

When the bearing is hot, it is generally caused by lubrication failure, unclean in the grease or oil, and the bearing string movement is blocked, and the ambient temperature and other factors. To hear whether bearing noise even at this time, if the uniform is supposed to be the influence of the bearing string move blocked, can be appropriately loose bearing gland, and hitting the bearing seat, help realize bearing bearing in the bearing seat, once the axial heat to stretch, the temperature will drop, if do not drop, must stop grinding bearing within the indentation, the steps, after polishing, and then open. If the bearing sounds evenly, but there is a whistle indicating that the grease or oil is insufficient, it can be supplemented appropriately. If the bearing internal sound is abnormal, it should be caused by the lubricating material is not clean or the bearing is damaged, the machine should be stopped to clean the bearing or replace the damaged bearing.

3 Fan vibration

Vibration and the rotor vibration, the vibration of the fan can be divided into shell shell vibration often system for the wind instability, anchor bolt looseness, and external factors, under the condition of casing appeared frequently suction drum, generally is the pipeline system instability caused by valve, unstable obstructions such as pipeline memory, when the fan sucked the barrier to the airflow direction, When the air inlet volume increases and the faulty object is reset, the air volume decreases, resulting in constant changes in the pressure in the fan shell, resulting in vibration of the shell suction drum. At this time, the machine must be stopped to clean up the unstable objects in the system. The second is the vibration caused by the loosening of the anchor bolt, and the anchor bolt is tightened in time. The third is the influence of external factors, such as the impeller and the casing interference friction, the pipe wave to the shell, encounter this kind of situation must also stop processing, otherwise it will cause greater damage.

The vibration of fan rotor is the most difficult to deal with, which is generally caused by the loss of balance of the rotor, the loosening of the housing and bearing, and the poor alignment of the fan and motor coupling. Fan rotor imbalance is mostly caused by impeller uneven glue ash, blade wear, vibration detection performance in the horizontal vibration is large, if caused by glue ash, shut down clean can start, if caused by wear or drop block, must be repaired welding, after the balance can start; There is also a case of axis bending, which must also be balanced. The vibration caused by loosening is large in the vertical direction during the detection, and the vibration can be eliminated by tightening the anchor bolt of the bearing seat or the upper cover bolt of the bearing seat. The axial vibration is large, and the large axial vibration is caused by the poor alignment of the coupling. At this time, when the machine stops to accurately align the coupling, the vibration will be reduced; If the above several measures are not reduce vibration, should check whether the bearing inner sleeve and generate large clearance between shaft and rotor caused by rotary center is not fixed, twitched cause vibration, if must carry on the repair of shaft, a simple method to glue on the shaft, then install bearing, bearing when loading to the shaft and bearing concentric. System collapse is also one of the reasons for fan rotor vibration. In this case, it is necessary to analyze the cause of the aggregate and the location of the aggregate, and eliminate the root cause of the collapse. The vibration caused by the collapse is relatively short, and the discharge is good.

 
Key Features 

• Impeller diameter: 90~3500 mm 
• Speed of mainshaft: 560~2900 rpm
• Pressure range: 3000~25425 Pa
• Flow range: 1297~83305 m3/h
• Air Temperature: 20~1000 Celsius degree

• Material: Cast Iron, Carbon Steel, Stainless Steel.

• Efficiency: 80%-90%

Please advise us the USAGE and following Parameter.Our engineering Dept will recommend the most suitable product for you.