How to prevent noise and noise in the chiller?
In actual application, there are not many phenomena that the noise generated by the screw chiller refrigeration compressor exceeds the normal standard. Today, refrigeration introduces some effective measures for vibration reduction and noise reduction, although the screw chiller is cooled from home and abroad. From the research of compressor noise and vibration, there are few researches on noise source identification, noise and vibration distribution, noise and vibration characteristics, noise and vibration control. At present, there is no complete research idea and R&D system in China. It is usually the key to using the noise test system to identify the source of vibration and noise, and then take measures to reduce vibration and reduce enthalpy. However, the following measures can also help you to understand and solve the problem as a whole.
1. On-site dynamic balance method of chiller compressor reduces power frequency vibration.
2. Correct the coaxiality of the motor shaft and the compressor spindle to reduce vibration.
3. Replace the different types of flexible couplings to reduce the noise of the chiller.
4. Fasten parts, improve assembly clearance, reduce bearing vibration, reduce machine noise. The screw chiller refrigeration compressor of an oilfield sluice is in poor working condition and has a fault.
The main cause of the abnormality in the operation sound is that the compressor fastening bolt is loose, the coupling between the compressor and the motor is poor, and the rotor is not operating properly. By checking the tightness of the fastening bolts to the specified value, adjusting the centering of the coupling, replacing the worn parts, adjusting the assembly clearance within the specified value range, the chiller operates normally.