A lot of methods to check pump fault, auscultation is one of them.
The normal operation of pumps, accompanied by sound always has a certain rhythm and rhythm. As long as the familiar and master these normal melody and rhythm, human auditory function can be compared through the device is the heavy, complex and strange, chaotic abnormal noise, loosening of the internal equipment of judgment, impact, unbalanced hidden dangers. Use the hammer to beat parts, whether burst noises, can be judged without cracks. The electronic stethoscope is a vibration acceleration sensor. The equipment vibration state is converted into electric signal and amplified, and the workers are used to monitor the vibration sound of the operating equipment in order to realize the qualitative measurement of sound. By measuring the same measuring point, different periods, the same speed, under the same conditions of the signal, and comparison, to determine whether there is a failure of equipment. When the headset appears clear shrill noise, as illustrated by the vibration frequency is high, generally local defects or micro crack is relatively small in size and strength relative higher parts. When the headset is low noise, it shows that the vibration frequency is low, generally relatively large size, relatively low strength of the parts of a larger crack or defect. When the noise of the earphone is stronger than usual, the fault is developing, the voice is bigger, the fault is more serious. When the noise from the earphone is random and disorderly, it shows that there is a loose part or part.
