The plunger pump vibrates heavily
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Why is there significant vibration when the frequency of a plunger pump is increased?
The vibration energy caused by inertia is inherently related to velocity; as the frequency increases, the speed of piston movement rises, resulting in increased vibrations
There are several options: 1. Add soft links; 2. Install a buffer tank at the outlet; 3. Add dampers; 4. Do a complete replacement all at once
The most common types of piston pumps are three-cylinder and five-cylinder piston pumps. These pumps operate by means of the back-and-forth movement of pistons; therefore, the higher the frequency, the greater the rate at which the pistons move back and forth, which implies the presence of inertia. Therefore, compared to three-cylinder piston pumps, five-cylinder piston pumps used in oil fields experience much less vibration, as the inertial forces from multiple pistons moving in different directions partially cancel each other out.
When a plunger pump operates at the power frequency or a fixed frequency, the vibration in the associated pipelines is not very severe; however, the vibration becomes extremely high when the frequency is increased, to the point that the pipe clamps loosen. How should this situation be addressed?
My understanding is that it’s the mixing of the high-pressure liquid exiting during the frequency tuning process that causes low fundamental frequency resonance in the components~~~~ If that’s the case, the vibration should subside about 3 minutes after the frequency tuning is completed, right?
After it ends, the vibration is not as severe, but the frequency adjustment process can cause the pipe connections to loosen, leading to leaks.
Pipes can be equipped with expansion joints or hoses as measures to prevent the transmission of vibration energy.