In 2018, the ammonia compressor jumped out of the machine due to the high bearing temperature. During the maintenance and removal of the tile in August, a large amount of varnish accumulation was found in the air separation compressor unit, and the MPC value was abnormal during the oil sampling and detection.

 

 

 

l Device name: air separation compressor, ammonia compressor, syngas compressor

 

Solve the problem: varnish removal, reduce the MPC value, prevent the varnish.

 

 

 

 

Tank capacity: 40m³

 

Oil type: 46# turbine oil

 

Oil service time: 5 years

 

 

 

 

Oil cleaning model No. : WVD-II varnish removal

 

Operation time: November 2018 till now

 

 

 

 

Cleanliness NAS1638:8 Level

 

varnish tendency index: 22.2

 

Operation of the unit: During the maintenance in August 2018, it was found that there was a large amount of paint film on the bearing pad. The MPC value of the oil sample sent to the third party was 22.2.

 

 

 

 

Cleanliness Level NAS1638:7

 

Paint film tendency index MPC: 10

 

Unit operation: MPC value decreased to 10 after 2 months of operation