(1) Reduce the leakage loss in the shock absorber, improve the processing accuracy and assembly quality of the parts, reduce the radial clearance of the front throttle sleeve of the balance disc and the radial clearance of the front and rear seal rings of the impeller and the guide vane seal ring, and reduce the shock absorption Pressure energy loss caused by liquid leakage from the high-pressure side to the low-pressure side. For the impeller sealing ring, guide vane sleeve, front throttling of the balance disc and other parts, materials with higher hardness should be selected, and heat treatment to improve wear resistance should be carried out.
(2) When starting the shock absorber in a cold state, the shock absorber should be fully warmed according to the requirements of the regulations. If the warm shock absorber is not sufficient, a large thermal temperature difference between the upper and lower body of the shock absorber is likely to occur, causing the rotor to produce bow-shaped deformation. When the shock absorber is activated, the internal sealing gap is easily worn out, causing internal leakage and increased return volume loss.