Reasons and solutions for periodic leakage of rotary joints

Firstly, we need to analyze the causes of periodic leakage in rotary joints to address this issue.
Firstly, it is necessary to analyze the causes of periodic leakage in rotary joints and solve this problem.
2. Periodic vibration of rotor joints, misalignment between stator and upper and lower covers, or imbalance between impeller and main shaft, cavitation or bearing damage or wear, leading to shortened service life and leakage of rotary joints;

3. The axial displacement of the rotary joint rotor is large, and the interference between the secondary seal and the shaft is large. The dynamic ring cannot move flexibly on the shaft, and the wear of the dynamic and static rings cannot be compensated, resulting in leakage.
To eliminate leakage faults, the lubricating oil level in the rotary joint oil chamber should be higher than the sealing surface of the dynamic and static rings; The axial displacement of the mechanical seal should be less than 0.1mm, and the interference fit between the secondary seal and the shaft should be adjusted appropriately; While ensuring radial sealing, the dynamic ring should be able to move flexibly on the shaft after assembly, and the dynamic ring should be able to rebound freely.