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    • 36. 发明专利
    • Prevention of gas generation in liquefied-gas coldness preservative circulation system
    • 防止气体生成气体保护循环系统中的气体生成
    • JPS6196300A
    • 1986-05-14
    • JP21416984
    • 1984-10-15
    • Nippon Kokan Kk
    • HAGIO AKIRAMISAWA ROKUROYAMAGISHI MAKOTO
    • F17C13/00
    • PURPOSE: To keep the pressure in a pipe over the saturated pressure of liquefied gas by controlling the flow rate of the liquefied gas which flows in the pipe.
      CONSTITUTION: A return valve 13 is installed in parallel to a receiving operating valve 7 at the base of a storage tank, and a pressure detector 14 is installed onto the upstream side of the return valve 13. The return valve 13 is controlled in correspondence with the output of the pressure detector 14. In the above- described control, the saturated vapor pressure PA of the liquefied gas which corresponds to the liquid temperature TA in a pipe is obtained, and the flow rate V of the liquefied gas is controlled so that the pressure in the pipe is kept at the pressure PC higher than the saturated vapor pressure PA, and the pressure in the pipe can be kept over the saturated vapor pressure of the liquefied gas.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过控制在管道中流动的液化气的流量,将管道中的压力保持在液化气饱和压力以上。 构成:在储罐的底部平行于接收操作阀7安装回流阀13,在回流阀13的上游侧安装有压力检测器14.返回阀13与 压力检测器14的输出。在上述控制中,获得与管道中的液体温度TA相对应的液化气体的饱和蒸汽压力PA,并且控制液化气体的流量V,使得 管中的压力保持在高于饱和蒸汽压力PA的压力PC上,并且管道中的压力可以保持超过液化气体的饱和蒸气压。