LNG Turbo expander Jammed
LNG Turbo expander Jammed
(OP)
Hi All,
we are commissioning a LNG Turbo Expander and facing a big problem that is Expander jammed,here is the sequence of event,
During commissioning our seal gas pressure went hi upto three barg and normal range was one barg while lube oil pump was running normal.
Turbo rotated about upto 300 rpm. And later on we tried to start but Turbo Expander not spined at all.
We opened the Trubo and Recompressor suction and discharge spools to check it but unfortunately found that Turbo is jammed.
Hence any one have experience like this please share.
10815L
we are commissioning a LNG Turbo Expander and facing a big problem that is Expander jammed,here is the sequence of event,
During commissioning our seal gas pressure went hi upto three barg and normal range was one barg while lube oil pump was running normal.
Turbo rotated about upto 300 rpm. And later on we tried to start but Turbo Expander not spined at all.
We opened the Trubo and Recompressor suction and discharge spools to check it but unfortunately found that Turbo is jammed.
Hence any one have experience like this please share.
10815L





RE: LNG Turbo expander Jammed
Bets regards, Morten
RE: LNG Turbo expander Jammed
on inspection we found that speed probe obstructed the turbo shaft,is this possible that 62 barg gas can't rotate it and very small probe stopped turbo.
Before startup every probe was checked by auto control engineer and he reported gap volts are ok and in limit.
10815l
RE: LNG Turbo expander Jammed
Mike Halloran
Pembroke Pines, FL, USA