应客户要求，对9月7号左右维修的KSB Omega双吸泵机械密封泄露问题进行分析。
At the request of the customer, the mechanical seal leakage problem of KSB Omega double suction pump, which was repaired around September 7, was analyzed.
Ø从机封损坏情况的照片来看，动环面碎裂以及密封表现有明显很深的划痕，原因是机械密封动静环贴合面在泵刚启动过程中摩擦力过大，启动扭矩过大产生对机封动环面的冲击导致碎裂，密封面摩擦力过大是由于表面密封不良，可能原因有二：
From the photos of the machanical seal damage, there are obvious deep scratches on the dynamic torus fracture and sealing performance. The reason is that the friction of the static and dynamic ring of the mechanical seal is too large in the process of starting the pump, and the starting torque is too large, resulting in the impact on the dynamic torus of the machine seal, resulting in fragmentation. The excessive friction of the sealing surface is due to the poor surface seal.
ü在启泵前，机封腔没有充分被排空，机封出现润滑不良干磨阻力大。
Before starting the pump, the seal cavity is not fully emptied, and the seal has poor lubrication and large dry wear resistance.
ü泵在现场停太久，首次启动没有手动盘车，没有让机封面动静环面被人工分离，直接启动会导致瞬间扭矩过大作用于密封面。
The pump stops for too long at the site, there is no manual turning for the first start, there is no manual separation of the dynamic and static torus of the sealing faces, and direct starting will cause instantaneous torque to be too large for the sealing surface.
