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公开(公告)号:US06505470B1
公开(公告)日:2003-01-14
申请号:US10085315
申请日:2002-02-28
申请人: Thomas K. Drube , Claus Emmer , Brian Bostrom
发明人: Thomas K. Drube , Claus Emmer , Brian Bostrom
IPC分类号: F17C1302
CPC分类号: F17C3/00 , F17C13/021 , F17C2201/0109 , F17C2201/054 , F17C2203/0391 , F17C2203/0629 , F17C2205/0326 , F17C2205/0329 , F17C2221/012 , F17C2221/013 , F17C2221/014 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2223/043 , F17C2225/0161 , F17C2225/033 , F17C2225/046 , F17C2250/032 , F17C2250/036 , F17C2250/0408 , F17C2250/0434 , F17C2250/0491 , F17C2250/0495 , F17C2250/075 , F17C2260/022 , F17C2260/042 , F17C2260/044 , F17C2270/0171 , F17C2270/05 , Y02E60/321
摘要: In a system for detecting overflow of a liquid cryogen storage tank, a differential pressure gauge measures the pressure of the tank at the top and bottom of the tank while liquid cryogen is introduced into the tank. Once the measurement reaches a predetermined amount, the operator terminates the fill. Alternatively, the differential pressure gauge sends a signal to the controller and the controller shuts the valves off. The tank includes an outlet pipe connected to either an audible device or avisual device and a vent stack. The excess cryogen, liquid or vapor, flows out of the tank through the outlet pipe. The audible device whistles when vapor passes through but is silent when the liquid passes through the audible device. This audible device provides a back-up warning which signifies when liquid cryogen is flowing out of the tank so that the operator may shut off the valves.
摘要翻译: 在用于检测液体冷冻剂储罐的溢出的系统中,差压表测量罐的顶部和底部处的罐的压力,同时将液体冷冻剂引入罐中。 一旦测量达到预定量,操作者终止填充。 或者,差压表向控制器发送信号,并且控制器关闭阀。 该罐包括连接到听觉装置或AVISual装置和排气叠层的出口管。 过量的冷冻剂,液体或蒸汽,通过出口管流出罐体。 当蒸气通过时,声音设备吹口哨,当液体通过声音设备时,声音设备静音。 这种声音装置提供了一个备用警告,指示液体冷冻剂何时流出储罐,以便操作人员可以关闭阀门。