发明名称 |
METHOD OF SEPARATION OF AIR |
摘要 |
FIELD: separation of air. SUBSTANCE: atmospheric air is compressed in compressor to low pressure and is fed to one of change-over passages of plate-type finned heat exchanger it is cooled and cleaned of water and carbon dioxide. Then air is divided into two flows: one flow is fed to non-change-over passage of heat exchanger where it is heated to temperature close to surrounding temperature; small amount of air is taken from this flow for forming loop flow. Other cooled flow enters recuperative heat exchanger after which it is combined with flow escaping from non-change-over passage and is compressed in compressor to high pressure. Then part of air after throttle valve and part of air after turbo-expander will be fed to double-acting fractionating tower; as a result, product oxygen and waste nitrogen are obtained. EFFECT: avoidance of power-intensive absorption units for dehumidifying and cleaning air. 1 dwg
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申请公布号 |
RU2137993(C1) |
申请公布日期 |
1999.09.20 |
申请号 |
RU19970107686 |
申请日期 |
1997.05.07 |
申请人 |
ZAO "LENTEKHGAZ" |
发明人 |
BUDNEVICH S.S.;KUZNETSOV P.D.;SHURUBTSOV V.N.;SAVCHENKO JU.A.;RUCHKIN A.V.;AKULOV L.A.;BESSONNYJ A.N. |
分类号 |
F25J3/04;(IPC1-7):F25J3/04 |
主分类号 |
F25J3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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