Liquid nitrogen system, liquid nitrogen system and control system

The invention discloses a liquid nitrogen system, a liquid nitrogen system and a control system, and in the liquid nitrogen system, a liquid nitrogen pump can extract and convey liquid nitrogen in a liquid nitrogen storage tank to user side equipment. The gas supply carrier containing the nitrogen c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN ENJUN, DUAN BANGCUN, FAN XUGUO, LI JUN, NIU ZIYANG, WANG CHONG, ZHAO LIUQIANG, YANG LEI, YUAN TONG, CHEN ZANHUA, LING CHEN, YANG GUANGYU, WANG XIAOJUN, HUO HUIYUAN, YANG YI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING PIPE-LINE SYSTEMS PIPE-LINES STORING OF DISTRIBUTING GASES OR LIQUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a liquid nitrogen system, a liquid nitrogen system and a control system, and in the liquid nitrogen system, a liquid nitrogen pump can extract and convey liquid nitrogen in a liquid nitrogen storage tank to user side equipment. The gas supply carrier containing the nitrogen can convey the nitrogen into the liquid nitrogen pump, and the temperature of the nitrogen is higher than that of the liquid nitrogen, so that the temperature of the liquid nitrogen pump rises to be overhauled. When the liquid nitrogen pump needs to be overhauled, the second valve group cuts off the liquid nitrogen pump and the liquid nitrogen storage tank, so that the first valve group communicates the liquid nitrogen pump and the gas supply carrier, and the temperature of the liquid nitrogen pump is adjusted. The nitrogen and the liquid nitrogen are two pure substances in different states, so that the problem that other element gases enter the liquid nitrogen storage tank or remain in the liquid nitrogen pump can