Methane purification device in BOG helium extraction device

The utility model discloses a methane purification device in a BOG helium extraction device. The methane purification device comprises a BOG compression and storage system, the BOG compression and storage system is connected with a first rectifying tower, the first rectifying tower is connected with...

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Bibliographische Detailangaben
Hauptverfasser:	WANG XIAOXIAN, SHAO ZHIWEI, FAN YONGSHENG, SHAO ZHUPENG, KUREI, LIU SHUZHOU, GAO CHEN, CHANG GUOBIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT EXCHANGE IN GENERAL HEAT PUMP SYSTEMS HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING MIXTURES BY PRESSURE AND COLD TREATMENT REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a methane purification device in a BOG helium extraction device. The methane purification device comprises a BOG compression and storage system, the BOG compression and storage system is connected with a first rectifying tower, the first rectifying tower is connected with a first turbo expander, and the first rectifying tower is connected with a chromatography tester; the chromatographic test instrument is connected with a first eduction tube and a second eduction tube, the second eduction tube is connected with a second rectifying tower, the second rectifying tower is connected with a second turbo expander, a first outlet is formed in the top of the second rectifying tower, a second outlet is formed in the bottom of the second rectifying tower, the first outlet is connected with a small cold box, and the small cold box is connected with a large cold box; the second outlet is connected with a heat exchanger which is connected with a helium buffer tank; according to the utility mode