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公开(公告)号:US5513961A
公开(公告)日:1996-05-07
申请号:US287786
申请日:1994-08-09
CPC分类号: F17C9/00 , F17C2203/0391 , F17C2205/0149 , F17C2221/013 , F17C2221/014 , F17C2221/033 , F17C2221/035 , F17C2223/0153 , F17C2223/0161 , F17C2223/033 , F17C2223/035 , F17C2227/0135 , F17C2250/0434 , F17C2250/061 , F17C2260/031 , F17C2265/017
摘要: A method and apparatus are disclosed for improving the available pump net positive suction head in a system for pumping liquid from a storage tank. When the liquid in the system is at or near its boiling point, a pump suction vessel is used to store and cool the liquid. The liquid in the pump suction vessel is kept at a temperature lower than its boiling point by surrounding the vessel with a jacketed space containing liquid from the storage tank. As the liquid in the jacketed space evaporates, the vapor is vented to the storage tank and more liquid is fed into the jacketed space.
摘要翻译: 公开了用于改进用于从储罐泵送液体的系统中的可用的泵净正吸头的方法和装置。 当系统中的液体处于或接近其沸点时,使用泵抽吸容器来储存和冷却液体。 泵抽吸容器中的液体通过围绕容器而保持在低于其沸点的温度,该容器具有容纳储存罐的液体的夹套空间。 随着夹套空间中的液体蒸发,蒸汽排放到储罐,更多的液体被送入夹套空间。