Common causes of compressor dry gas seal
In normal operation, the filtration system fails and seals the pollution.
In the operation of dry gas seals, the sealing gas may be seriously liquidated, which exceeds the filter processing capacity; the filter is not switched in time after plugging, resulting in damage to the filter element; the gas source contains a large amount of fine powder, and its particle size is smaller than the accuracy of the filter. Exceeding the processing capacity of the filter, but the total amount is large, which will affect the seal and the system, etc., causing the filtration system to fail, thereby causing the seal to fail.
Seal failure caused by unit
During the normal operation of a chemical carrier gas compressor, the vibration value of the unit suddenly rises linearly, beyond the measurement range of the instrument, and the leakage of the unit seal is exceeded. After disintegration, it was found that the sealing ring was broken, mainly because the balance plate of the hot sleeve on the main shaft was loose, axial displacement occurred, and contact with the stator was worn, which caused the vibration value of the unit to rise and exceeded the seal. Range, causing seal damage.
On-site misoperation
A chemical plant ethylene compressor, the unit is operating normally for about two years, the seal at both ends suddenly fails at the same time, the seal ring is damaged. In the later investigation, it was found that the temperature in the winter was lower, and the operator opened the heater of the sealing gas with good intentions, and the sealing ring burst due to sudden temperature changes.
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