CRYOGENIC FULL CONTAINMENT STORAGE TANK FOR REALIZING LOW-LIQUID-LEVEL MATERIAL EXTRACTION FUNCTION BY USING PUMP COLUMN

A cryogenic full containment storage tank for realizing a low-liquid-level material extraction function by using a pump column, comprising an inner tank, an outer tank, a pump column, a submersible pump and a material pre-extraction device; wherein the material pre-extraction device comprises a coff...

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Bibliographische Detailangaben
Hauptverfasser: YING, JIECHENG, LU, QIANG, YIN, CUIQIN, XIAO, SHUHENG
Format: Patent
Sprache:eng
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Zusammenfassung:A cryogenic full containment storage tank for realizing a low-liquid-level material extraction function by using a pump column, comprising an inner tank, an outer tank, a pump column, a submersible pump and a material pre-extraction device; wherein the material pre-extraction device comprises a cofferdam, a Venturi mixer, a backflow pipe, a return control valve, a lead-out pipeline and a liquid level detection system. The cryogenic full containment storage tank can make use of a low-temperature medium flowing back from the pump column to extract the low liquid level material outside the cofferdam into the cofferdam to form a local high liquid level and maintain the normal operation of the submersible pump.