Hydraulic shocks in hydraulic pump stations are unavoidable. Hydraulic shock refers to a sudden change in pressure caused by a sudden change in the motion state of hydraulic oil in a hydraulic pump station. Hydraulic shocks can damage some hydraulic components in the hydraulic power pack. The reason is that when the hydraulic shock occurs, the local pressure may instantly increase several times or dozens of times. Therefore, the hydraulic shock is suppressed and the maximum possible hydraulic shock is estimated.

There are many reasons for hydraulic shock, we will only mention the most common ones:

First, due to the inertia and compressibility of hydraulic oil, the hydraulic shock generated by the sudden opening and closing of the valve will quickly convert the kinetic energy of the hydraulic oil into pressure energy. This drastic change creates pressure waves. This phenomenon is called "water hammer", but it stops briefly due to the viscosity of the hydraulic oil.

The second is the hydraulic shock caused by the sudden start or stop of the hydraulic pump station. Because the equipment and hydraulic oil have inertia, the hydraulic shock caused by this situation is also very large.

Methods of suppressing hydraulic shock include:

First, open and close the valve smoothly so that there is no excessive hydraulic shock. Or change the manual reversing valve to an electromagnetic reversing valve.

Second, the hydraulic pump station should be preheated before starting, and the maximum power should not be used at the beginning.

Third, the safest way is to install an accumulator, which prevents damage to the hydraulic system even if there is a hydraulic shock.