Expansion compressor
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Expansion compressor
At present, all advanced and large LNG ships use DFDE dual-fuel generator electric propulsion system and are equipped with complete re-liquefaction device. The re-liquefaction on LNG ships realizes low-temperature refrigeration through nitrogen closed compression expansion cycle. The expansion and compression integrated magnetic levitation motor developed by our company has the characteristics of high efficiency, no oil, strong sealing, no wear, long service life and complete machine flameproofing, which meets the use requirements of LNG marine re-liquefaction system.
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- Description
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Motor power: 250 kW
Motor speed: 30,000 r/min
Motor efficiency: >96%
Voltage: 440 V
Noise: <115 dB
Insulation grade: H
Explosion-proof requirements: Positive pressure explosion-proof
Sealing requirements: 100% zero leakage