Scale inhibition
    2.
    发明授权
    Scale inhibition 失效
    比例抑制

    公开(公告)号:US4617129A

    公开(公告)日:1986-10-14

    申请号:US751647

    申请日:1985-07-03

    申请人: Michael J. Lees

    发明人: Michael J. Lees

    摘要: Method of inhibiting the precipitation of calcium carbonate from an aqueous system, comprises adding to the aqueous system a scale precipitation inhibiting amount of bis(phosphonomethylene) aminomethylene carboxylic acid.Typical aqueous systems usefully treated by the new method are water- or oil well systems, cooling water systems, steam generating systems, sea-water evaporators, hydrostatic cookers, gas-scrubbing systems, closed circuit heating systems, reverse-osmosis systems and aqueous-based refrigeration systems.

    摘要翻译: 抑制碳酸钙从水性体系沉淀的方法包括向水系中加入水垢沉淀抑制量的双(膦酰亚甲基)氨基亚甲基羧酸。 通过新方法有效处理的典型含水系统是水或油井系统,冷却水系统,蒸汽发生系统,海水蒸发器,静水炊具,气体洗涤系统,闭路加热系统,反渗透系统和含水 - 基于制冷系统。

    Controlling the supply of bodyfeed to a filter
    3.
    发明授权
    Controlling the supply of bodyfeed to a filter 失效
    控制过滤器的身体供应

    公开(公告)号:US06589430B1

    公开(公告)日:2003-07-08

    申请号:US09806981

    申请日:2001-05-24

    IPC分类号: B01D3702

    摘要: The invention features a control system for controlling the supply of bodyfeed to a filter for removing solids from a beer stream is described. By applying the bodyfeed at an appropriate rate and hence achieving appropriate effective bed voidage it is possible to maintain beer clarity while minimizing filter aid usage. The control system includes a means for determining turbidity of the liquid stream upstream of the filter, a means for determining the rate of pressure drop change across the filter, and a controller for altering the supply of bodyfeed to the filter in accordance with a calculated dose change.

    摘要翻译: 本发明的特征在于一种控制系统,用于控制从用于从啤酒流中除去固体的过滤器的身体供料。 通过以适当的速率应用身体进给,从而实现适当的有效床空隙,可以保持啤酒清晰度,同时最小化助滤剂使用。 控制系统包括用于确定过滤器上游的液体流的混浊度的装置,用于确定跨越过滤器的压力降变化速率的装置,以及用于根据计算的剂量改变向过滤器供体的进给量的控制器 更改。