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11.
公开(公告)号:US5787942A
公开(公告)日:1998-08-04
申请号:US663798
申请日:1996-06-14
Applicant: Duane Preston , Paul Drube , Thomas Drube
Inventor: Duane Preston , Paul Drube , Thomas Drube
CPC classification number: F17C13/04 , F16K31/30 , F17C9/00 , F17C2223/0161 , F17C2223/046 , F17C2225/0161 , F17C2225/044 , F17C2227/0135 , F17C2227/015 , F17C2250/0434 , F17C2250/0439 , F17C2250/0443 , F17C2250/0495 , F17C2250/0636 , F17C2250/072 , F17C2260/024 , Y10T137/7417
Abstract: A snap-action flow interrupt device for terminating flow into a cryogenic storage container utilizes the momentum of the incoming liquid spray as a means of maintaining a float in a submerged position until the proper liquid level is attained. The incoming spray of liquid exerts a downward impact force on a surface of the float. The rising liquid level exerts an upward and increasing buoyant force on the float. When the rising liquid in the tank disrupts the spray, the buoyant force snaps the float upwards to interrupt the flow of liquid. The abrupt motion of the float generates a pressure spike and flow reduction, either of which may be easily detected by automatic fill termination devices or by a human operator.
Abstract translation: 用于终止流入低温存储容器的快动流动中断装置利用进入的液体喷雾的动量作为将浮子保持在浸没位置的手段,直到达到适当的液面。 液体的进入喷雾在浮子的表面上施加向下的冲击力。 上升的液位在浮子上施加向上和增加的浮力。 当坦克中的上升液体破坏喷雾时,浮力将浮子向上冲击以中断液体流动。 浮子的突然运动产生压力尖峰和流量减少,其中任何一种都可以通过自动填充终止装置或人类操作者容易地检测。
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公开(公告)号:US5616838A
公开(公告)日:1997-04-01
申请号:US606640
申请日:1996-02-26
Applicant: Duane Preston , Tom Drube , Paul Drube
Inventor: Duane Preston , Tom Drube , Paul Drube
CPC classification number: F17C13/028 , F17C13/021 , F17C13/023 , G01F1/00 , F17C2203/0391 , F17C2203/0629 , F17C2205/0323 , F17C2221/014 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2225/047 , F17C2250/032 , F17C2250/0413 , F17C2250/0421 , F17C2250/0426 , F17C2250/0439 , F17C2250/0443 , F17C2250/0491 , F17C2250/0495 , F17C2250/061 , F17C2260/024
Abstract: A cryogenic meter is mounted in an insulated container having an inlet and outlet in circuit with the LNG delivery flow path. The container is filled with LNG to a level above the cryogenic meter to pre-cool it to a desired operating temperature. To maintain the level of LNG in the container during use and to separate vapor from liquid, a float device allows vapor to be returned to the storage tank from the container to refill it with LNG. Because the meter is continuously immersed in LNG during use, it is maintained at a constant temperature permitting the quantity of LNG delivered to a use device to be accurately metered. Temperature and/or pressure signals are sent to a microprocessor which computes the density of the LNG and displays the metered amount of LNG on a display.
Abstract translation: 低温计安装在具有与LNG输送流路相通的入口和出口的绝热容器中。 将容器装满LNG至低于低温计的水平面,以将其预冷却至期望的工作温度。 为了在使用期间保持容器中的LNG的水平并且将蒸汽与液体分开,浮子装置允许蒸汽从容器返回到储存罐,以用LNG再填充。 因为仪表在使用过程中连续浸没在液化天然气中,所以将其保持在恒定的温度,从而可以精确地计量输送到使用装置的液体量。 温度和/或压力信号被发送到微处理器,微处理器计算LNG的密度并在显示器上显示计量的LNG。
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