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sindremik
06-03-2017, 04:05 PM
Hi.

I am having a major issue with the directional elbow inside the demister breaking. I do not know the cause of this ( Oil hammer?) . All compressors on 2 skids (4 compressors) have the same problem. A big piece of the elbow is broken off, and sits in the separator between the demister and the dome end. I am aware that these compressors fluctuate on the oil level, between partial and full load- but could this be the cause of the oil hammer/liquid hammer??

Basically, could the full load and the sudden increase in flow give too high oil return via suction line. And, if so- that would mean what? ( design flaw in the pipeline or viscosity problem of the oil?)

BS170 oil
two sided evap with 1 comp. each side, separate condensers...

Much abliged for any responce as Bitzer had not seen this before...146551465614657

sindremik
08-03-2017, 03:10 PM
Nobody experienced any similar issue with the component?

mbc
08-03-2017, 08:12 PM
Hi
There is check valve on discharge side in compressor
Check them

Also could you send your plan to check it
Also do you have aditional check valve on oil separator and condenser