Low-temperature device for separating and purifying gas based on small-sized low-temperature refrigerating machine

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United States of America Patent

PATENT NO 9752824
APP PUB NO 20150013349A1
SERIAL NO

14378019

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Abstract

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A low-temperature device for separating and purifying gas based on a small-sized low-temperature refrigerating machine includes a primary, secondary and quaternary heat exchanger, at least one small-sized low-temperature refrigerating machine, and at least one liquid collecting tank. The small-sized low-temperature refrigerating machine includes a first cold head and a second cold head, the secondary heat exchanger is provided on the first cold head to form a primary cold head heat exchanger, the quaternary heat exchanger is provided on the second cold head to form a secondary cold head heat exchanger, a mixed gas outlet is connected to an inlet of the primary cold head heat exchanger. By using primary and secondary cold heads of the small-sized low-temperature refrigerating machine as cold sources, gases having different condensing temperature are liquefied and solidified separately, and two or more gases can be separated and purified at a lower cost.

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Patent Owner(s)

Patent OwnerAddress
CSIC PRIDE (NANJING) CRYOGENIC TECHNOLOGY CO LTDNO 32 CHANGQING STREET JIANGNING DISTRICT NANJING CITY JIANGSU PROVINCE 211153 NANJING CITY JIANGSU PROVINCE 211153

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chao, Wei Nanjing, CN 15 92
Chen, Jie Nanjing, CN 1059 5911
Dong, Wenqing Nanjing, CN 3 1
Gao, Jinlin Nanjing, CN 3 4
Li, Ao Nanjing, CN 31 52

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