Ingersoll-Rand 4R2MSGE-16RC/15
Axis vibrations at stages 1, 2 and 4 were abnormally high, reaching up to 36 microns. Meanwhile, the oil temperature soared to 65.7°C (exceeding the normal range).
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Hitachi Reciprocating Compressor POB-CH
On May 21, 2025, after a routine shutdown, the system experienced an overload trip upon restart on May 23. The motor failed to rotate. Upon inspecting the starter cabinet, it was discovered that the thyristor had burned out. After replacing the thyristor and attempting to restart, the system once again tripped due to overload—but this time, the motor did start rotating, while the compressor side exhibited excessively high vibration levels. On May 24, further inspection revealed that the diaphragm-type coupling connecting the compressor to the speed increaser gearbox had fractured. By May 25, a thorough examination of the speed increaser gearbox, compressor, and motor showed no signs of mechanical transmission abnormalities. However, at 6:00 PM on May 25, when the coupling between the speed increaser and the compressor side was disconnected, the unit still tripped on overload during startup.
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Commissioning test run completed successfully—vibration levels in both stages remain below 15 microns, and surge phenomena have been eliminated.
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ROYALTURBO Engineering (Hangzhou) Co., Ltd.
Address: Floor 10, Building 2, Kerry Center, Gongshu District, Hangzhou City, Zhejiang Province
Phone:0571-86601696Kerry Center
ROYALTURBO Machinery (Zhejiang) Co., Ltd.
Address: No. 118 Changfu Road, Shacun Block, Moganshan High-Tech Zone, Deqing County, Zhejiang Province
Phone:0571-88814005
