Seeking help regarding a damaged dry gas seal.

It is caused by damaged bearings and the rotor deviating from its central position. There is also the issue of damage to the air seal caused by axial movement of the rotor resulting from damage to the thrust bearings. If the bearing is not damaged, there is a certain gap between the air seal and the spindle, so the air seal will not be damaged.

The shaft sleeve and compressor shaft were not properly installed in such a way as to ensure a secure fit. Axis. The high point where it’s fitted isn’t cleaned properly, making it very difficult to remove.

Are there any photos? Are the support bearings on both sides and the thrust bearing at the non-driving end damaged?

1. Insufficient cleanliness during seal installation. 2. Missing treatment of burrs on the contact surfaces. 3. Uneven application of silicone grease on the contact surfaces during seal installation. 4. Inconsistent force applied by the special tools used during installation; the shaft sleeve was eccentric, resulting in damage to the shaft’s contact surfaces, which went unnoticed due to lack of experience. 5. Excessive temperature of the process gas at the outlet during unit operation, causing this gas to enter the dry gas seal via the primary seal. 6. The sealing rings inside the dry gas seal shaft sleeve have aged or degraded and become stuck; there are usually no fewer than 5 such rings inside. 7. Corrosive gases entering the interior of the seal shaft sleeve, leading to corrosion and damage of the contact surfaces. 8. Delayed drainage from the coalescer located on the dry gas seal frame, resulting in moisture in the seal gas and subsequent rusting of the shaft sleeve and shaft

There’s no particular reason; it’s just that during assembly, the molybdenum disulfide powder wasn’t applied to the shaft – they forgot about it, that’s all. I’ll be more careful from now on, so it won’t get stuck in a locked position.

The positioning pin is not installed properly or it is broken