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公开(公告)号：US11274880B2
公开(公告)日：2022-03-15
申请号：US15934292
申请日：2018-03-23
申请人： Ashley R. Guy , Sorin T. Lupascu , Donna J. Parker , Yow-Yeen Lee
发明人： Ashley R. Guy , Sorin T. Lupascu , Donna J. Parker , Yow-Yeen Lee
摘要： A drive system for liquefied natural gas (LNG) refrigeration compressors in a LNG liquefaction plant. Each of three refrigeration compression strings include refrigeration compressors and a multi-shaft gas turbine capable of non-synchronous operation. The multi-shaft gas turbine is operationally connected to the refrigeration compressors and is configured to drive the one or more refrigeration compressors. The multi-shaft gas turbine uses its inherent speed turndown range to start the one or more refrigeration compressors from rest, bring the one or more refrigeration compressors up to an operating rotational speed, and adjust compressor operating points to maximize efficiency of the one or more refrigeration compressors, without assistance from electrical motors with drive-through capability and variable frequency drives.
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2.发明申请公开(公告)号：US20180335253A1
公开(公告)日：2018-11-22
申请号：US15934292
申请日：2018-03-23
申请人： Ashley R. Guy , Sorin T. Lupascu , Donna J. Parker , Yow-Yeen Lee
发明人： Ashley R. Guy , Sorin T. Lupascu , Donna J. Parker , Yow-Yeen Lee
CPC分类号： F25J1/0283 , F25J1/0022 , F25J1/0052 , F25J1/0055 , F25J1/0072 , F25J1/0087 , F25J1/0216 , F25J1/0218 , F25J1/0236 , F25J1/0245 , F25J1/0247 , F25J1/0248 , F25J1/029 , F25J1/0296 , F25J2220/64 , F25J2230/20
摘要： A drive system for liquefied natural gas (LNG) refrigeration compressors in a LNG liquefaction plant. Each of three refrigeration compression strings include refrigeration compressors and a multi-shaft gas turbine capable of non-synchronous operation. The multi-shaft gas turbine is operationally connected to the refrigeration compressors and is configured to drive the one or more refrigeration compressors. The multi-shaft gas turbine uses its inherent speed turndown range to start the one or more refrigeration compressors from rest, bring the one or more refrigeration compressors up to an operating rotational speed, and adjust compressor operating points to maximize efficiency of the one or more refrigeration compressors, without assistance from electrical motors with drive-through capability and variable frequency drives.
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公开(公告)号：US11143453B2
公开(公告)日：2021-10-12
申请号：US16192366
申请日：2018-11-15
申请人： Sorin Lupascu , Yow-Yeen Lee
发明人： Sorin Lupascu , Yow-Yeen Lee
摘要： A system and method for producing liquefied natural gas (LNG) from a natural gas stream. Each of a plurality of LNG trains liquefies a portion of the natural gas stream to generate a warm LNG stream in a first operating mode, and a cold LNG stream in a second operating mode. A sub-cooling unit is configured to, in the first operating mode, sub-cool the warm LNG streams generated by each of the plurality of LNG trains to thereby generate a plurality of cold LNG streams. The warm LNG streams have a higher temperature than a temperature of the cold LNG streams in the second operating mode and the plurality of cold LNG streams. The combined flow rate of the plurality of cold LNG streams has, in the first operating mode, a higher flow rate than the combined flow rate of the cold LNG streams in the second operating mode.
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公开(公告)号：US20190195554A1
公开(公告)日：2019-06-27
申请号：US16192366
申请日：2018-11-15
申请人： Sorin Lupascu , Yow-Yeen Lee
发明人： Sorin Lupascu , Yow-Yeen Lee
CPC分类号： F25J1/0022 , F25J1/005 , F25J1/0052 , F25J1/0055 , F25J1/0072 , F25J1/0082 , F25J1/0087 , F25J1/0218 , F25J1/0236 , F25J1/0271 , F25J1/0274 , F25J1/0283 , F25J2220/64
摘要： A system and method for producing liquefied natural gas (LNG) from a natural gas stream. Each of a plurality of LNG trains liquefies a portion of the natural gas stream to generate a warm LNG stream in a first operating mode, and a cold LNG stream in a second operating mode. A sub-cooling unit is configured to, in the first operating mode, sub-cool the warm LNG stream to thereby generate a combined cold LNG stream. The warm LNG stream has a higher temperature than a temperature of the cold LNG stream and the combined cold LNG stream. The combined cold LNG stream has, in the first operating mode, a higher flow rate than a flow rate of the cold LNG stream in the second operating mode.
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