Temperature-compensated automatic stop fill for filling of tanks with
liquids under vapor or gas pressure
    78.
    发明授权
    Temperature-compensated automatic stop fill for filling of tanks with liquids under vapor or gas pressure 失效
    温度补偿自动停止填充用于在蒸气或气体压力下用液体填充罐

    公开(公告)号:US5673736A

    公开(公告)日:1997-10-07

    申请号:US526588

    申请日:1995-09-11

    申请人: Edward J. Farkas

    发明人: Edward J. Farkas

    摘要: The invention described in the patent is an automatic control system which provides monitoring, supervision, and control of the process of filling of a tank or container with a liquid. The invention is applicable to cases where the liquid is handled in contact with its own vapor only, or where the liquid must be maintained at all times under a specified gas pressure. The invention provides an improved method of carrying out the process of filling of tanks or containers with liquids such as ammonia, chlorine, propane, liquefied petroleum gas, or with liquids such as carbonated beverages. The main advantage provided by the apparatus and method of the present invention is that an improved means is included for automatically stopping the filling process at the correct point, so as to avoid a possibly hazardous overfilled condition. One of the methods currently in use requires a mechanical valve which senses liquid level in the tank and is supposed to close so as to stop flow to the tank when the liquid has reached the maximum allowable level. The mechanical valve may malfunction and allow overfilling of the tank, and the fact that the valve is malfunctioning may not be readily apparent. The present invention does not require a mechanical valve of the type described above. Further, there is a self-checking and self-monitoring capability so that users of the apparatus and method are warned of any malfunction.

    摘要翻译: 该专利中描述的发明是一种自动控制系统,其提供对具有液体的罐或容器的填充过程的监视,监督和控制。 本发明适用于仅将液体与其自身的蒸气接触或必须在特定气体压力下始终保持液体的情况。 本发明提供了一种改进的方法,其用液体如氨,氯气,丙烷,液化石油气或与诸如碳酸饮料的液体一起填充罐或容器。 通过本发明的装置和方法提供的主要优点是包括用于在正确点处自动停止填充过程的改进装置,以避免可能的危险的过度填充状态。 目前使用的一种方法需要一种机械阀,其感测罐中的液位并且应当关闭,以便当液体达到最大允许水平时停止流向罐的流动。 机械阀可能发生故障并允许油箱过满,阀门故障的事实可能不明显。 本发明不需要上述类型的机械阀。 此外,还有一种自检和自我监控功能,使得用户对设备和方法的任何故障都会被警告。