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Axial Fan Wide Range Of Applications

Wuxi JN Fan Co.,Ltd | Updated: Aug 01, 2017

Fans are widely used in many industrial processes and are an important auxiliary machinery for industrial production. Axial fans are widely used because of their high energy efficiency. But in recent years because of axial fan caused by the production accidents are often occur, Axial Fan especially the power plant axial fan, Axial Fan often failure, although rarely cause casualties, but for the power plant caused by downtime, and damage to the turbine equipment, resulting in Huge economic loss. Therefore, in such a case, Axial Fan it is very important to enhance the reliability of the axial fan operation and improve the working efficiency of the axial fan.

Before the 1990s, China's large power plants (125MW and above) boiler fan caused by unplanned downtime and unplanned downhill more frequent, according to statistics, Axial Fan in 125MW, 200MW, 300MW and 600MW units, according to the loss of the equivalent power plant downtime Count, send, induced draft fan are ranked in the top 10 influencing factors, and the gap between developed countries. After the 1990s, several major power plant fan factory equipment quality improved rapidly, for the actual situation of China's power plants, Axial Fan the introduction of foreign advanced technology, Axial Fan so that the power station fan, Axial Fan especially the adjustable blade axial fan reliability has been improved.

The accident of the axial fan is classified into three types of accidents according to the degree of influence, among which the first type of accident is the most serious. The third category of accidents on behalf of the axial fan there are security risks. Specific classification: the first category, Axial Fan a serious fan failure, resulting in the entire thermal power units can not run properly. Which has affected the work efficiency of the thermal power unit. The third type, the axial fan has a small fault or a hidden trouble, resulting in the shaft The operating efficiency of the flow fan is slightly reduced, but it does not affect the normal operation of the thermal power unit.

Axial fans have a lot of common faults, because the axial fan has been in a high load of the working environment, so there may be a lot of failure. Rotor failure, which is the fan more common fault, the specific failure, including the rotor bending, running vibration, or rotor and impeller connection problems, Axial Fan resulting in rotor shaft idling, impeller and rotor slippage phenomenon. Leaf blade failure, the blade in the work of a long time by a great force, so easy to crack cracks and fracture accidents, and this failure is also difficult to check, because the axial fan is always in high-speed operation, so can not use what way to predict Impeller failure. Axial Fan So the impeller fracture is the most common axial fan production accidents? Damage to the fan bearing can cause the stator shell to hold the rotor, the stator shell fixed a huge impact force, resulting in the overall collapse of the axial fan. When the circuit circuit is too large, the wire in the copper wire to produce thermal effects will stator or rotor burned, Axial Fan causing great damage to the motor, the lack of grease in the fan components appear dry grinding, the final bearing, rotor and other lock. So in the daily maintenance should pay attention to increase the grease.

First, the axial fan may be the first, Axial Fan because there is a certain design in the security risks, in the design of mechanical elements are ignored, resulting in axial fan failure, or because in the production of cutting corners, resulting in work efficiency is not high , Stability is not good. Second, in the design forgot to consider the expansion coefficient of gas, and gas use characteristics without a detailed understanding. Third, the leaves are not carried out daily maintenance, production, attention to production, Axial Fan contempt for the importance of maintenance. Or the quality of the leaves is not qualified. Fourth, the quality of the grease is poor, or the resistance to sublimation is poor, resulting in axial flow fan running for some time, Axial Fan the lubrication quality becomes very poor. Fifth, the corresponding fault detection module is damaged, there is no way to reflect the normal operation of the fan in a timely manner.

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