发明名称 |
PROCEDE ET INSTALLATION D'ECHANTILLONNAGE DE LIQUIDES CRYOGENIQUES, ET UNITE DE SEPARATION D'AIR POURVUE D'AU MOINS UNE TELLE INSTALLATION |
摘要 |
<p>To sample contaminated low temperature liquid gases, e.g. liquid oxygen or nitrogen, the gas(es) is (are) fed into an evaporator (24) connected to the insulated (20) bleed line (8) through a junction (44), so that the gas drops down through the evaporator. The evaporator walls in contact with the gas are maintained at a temperature over the sublimation or vaporizing level of the least volatile impurity in the liquid gas. The gas phase is evacuated (46) downstream of the evaporator to be transferred through a flow control (52) to an analysis unit (54). The evaporator acts as a heat exchanger using free ambient air to vaporize wholly the liquid gas(es).</p> |
申请公布号 |
FR2839153(B1) |
申请公布日期 |
2005.01.14 |
申请号 |
FR20020005216 |
申请日期 |
2002.04.25 |
申请人 |
AIR LIQUIDE |
发明人 |
MENESES DAVID;THONNELIER JEAN YVES;LEHMAN JEAN YVES |
分类号 |
F17C13/02;F25J3/04;G01N1/00;G01N1/10;G01N1/28;G01N1/40;(IPC1-7):G01N1/10;F17D3/10;B01D3/42 |
主分类号 |
F17C13/02 |
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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