The fault occured during normal operating conditions. There was a fault in the control loop that triggered the valve opening unneccessarily. We have identified that much. The problem is that the intermediate valve was install by the compressor supplier as a modification to the initial design...
We have recently experienced severe damage on an axial air compressor. The damage was caused due to multiple interstage surges. The direct cause of this was intermitent opening of the intermediate blow off valve. The valve is situated after the first intercooler, before the air is fed into the...
We have a problem with large amounts of water entering our lubrication oil system. The system supplies bearing lubrication oil and control oil to a steam turbine and air compressor. Ingress is suspected at the turbine bearing housings due to excessive gland steam pressures. Has anybody had a...
We have a number of steam turbines that are quite old. The turbines are being supplied with gland steam to maintain conditions in the casing. At times there are problems on the dischage side and we loose vacuum. When this happens, the operators increase the gland steam supply pressure to try to...