For screw chillers that use fans to dissipate heat, the fans are generally installed on the top of the air-cooled screw chiller, of course, some customers require to choose to install it on the side.Air-cooled screw chillerIt should be installed in a ventilated, open place, so as not to affect its cooling effect. Any mechanical and electrical equipment will have some faults during the installation or use operation, these are normal phenomena.

So let's talk about the common failures of air-cooled screw chillers, and how to deal with these failures?

1. The noise of the air-cooled screw cold water fan is very loud:

1. Bearing component wear/excessive clearance: if it is worn, it should be replaced in time, if the clearance is too large, it can be directly adjusted to a suitable position;

2. The speed is too high: it can be improved by reducing the speed, if not solved, the fan should be replaced;

2. The motor temperature of the fan is too high

1. The flow exceeds the rated value: the valve can be closed at this time;

2. There is a problem with the motor or power supply: check whether the screening is due to the motor and power supply;

   

3. The bearing temperature of the fan is too high

1. Insufficient lubricating oil (grease) or poor quality: If the lubricating oil is not enough, it should be filled to the required part; if the quality is poor, the bearing should be cleaned and then replaced with qualified lubricating oil (grease);

2. Fan shaft and motor shaft are not concentric: should be adjusted to be concentric;

3. Bearing damage: new bearings should be replaced, or you can contact the relevant chiller manufacturer for troubleshooting and replacement work;

4. The air output of the fan is too small:

1. Check whether the direction of rotation of the impeller is reversed. This can be solved by changing the position of any two wires of the motor;

2. Blockage of air inlet or outlet and pipe: check the air inlet/outlet and remove the blockage;

Therefore, it is indispensable to inspect, repair and maintain the air-cooled screw chiller, which can not only reduce the probability of failure of the air-cooled screw chiller, but also help extend its service life. In process production It is safer and more efficient to use.