Apparatus and method for continuously monitoring and controlling the
level of tar in a settling tank
    1.
    发明授权
    Apparatus and method for continuously monitoring and controlling the level of tar in a settling tank 失效
    用于连续监测和控制沉淀池中焦油含量的装置和方法

    公开(公告)号:US4140143A

    公开(公告)日:1979-02-20

    申请号:US811382

    申请日:1977-06-29

    摘要: An interphase level regulator and method for using it are provided for continuously monitoring and controlling the level of tar in a settling or decanter tank where the tar is separated from an aqueous fluid. The interphase level regulator has an interphase tube vertically positioned inside or outside the settler or decanter tank after an initial separation of tar and aqueous fluid from the emulsion of tar and aqueous fluid. The interphase tube contains one or two pneumatic dip tubes that are supplied with air and yield a different pressure when a change occurs in the level of decanted tar in the interphase tube. The difference in pressure at the dip tube is measured and transmitted to a valve that controls the flow of decanted tar from the settler or decanter tank.

    摘要翻译: 提供了一种相间水平调节器及其使用方法,用于连续监测和控制焦油与水性液体分离的沉降或倾析罐中的焦油含量。 相间液位调节器在从焦油和水性流体的乳液中初始分离焦油和水性流体之后,具有垂直定位在沉降器或倾析罐内部或外部的相间管。 相间管包含一个或两个气动汲取管,当在相间管中的倾吐焦油水平发生变化时,空气汲取管被供应空气并产生不同的压力。 汲取管上的压力差被测量并传递到控制来自沉降器或倾析罐的倾析焦油流动的阀。