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39 条记录 (耗时 0.038 秒)

    Heat exchanger
    11.
    发明授权
    Heat exchanger 有权
    热交换器

    公开(公告)号：US08778257B2

    公开(公告)日：2014-07-15

    申请号：US13013924

    申请日：2011-01-26

    申请人： Mark P. Taylor ,  John JJ Chen ,  Mohamed Farid ,  Robert John Wallace

    发明人： Mark P. Taylor ,  John JJ Chen ,  Mohamed Farid ,  Robert John Wallace

    IPC分类号： C21C5/00

    CPC分类号： F27D9/00 ,  C21B7/106 ,  C21C5/4646 ,  C25C3/085 ,  F27D2009/0005 ,  F27D2009/0013 ,  Y02P10/138 ,  Y02P10/262

    摘要： A heat exchanger 10 includes a conduit 12 for conveying cooling fluid relative to a body to be cooled. A heat transfer arrangement 62 is arranged in communication with an interior of the conduit 12, the heat transfer arrangement 62 and the conduit 12 together defining an assembly that is mountable adjacent the body to be cooled, convective heat exchange occurring, in use, due to movement of the cooling fluid relative to the body and to the heat transfer arrangement 62 of the assembly and radiant heat exchange occurring between the body and at least part of the heat transfer arrangement 62 of the assembly.

    摘要翻译： 热交换器10包括用于相对于要冷却的主体输送冷却流体的导管12。 传热装置62布置成与导管12，传热装置62和导管12的内部连通，该传热装置62和导管12一起限定可相对于待冷却的主体安装的组件，在使用中发生对流热交换，由于 冷却流体相对于主体和组件的传热装置62的运动以及在主体与组件的传热装置62的至少一部分之间发生的辐射热交换。

    Process for controlling aluminum smelting cells
    20.
    发明授权
    Process for controlling aluminum smelting cells 失效
    用于控制铝冶炼细胞的方法

    公开(公告)号：US5089093A

    公开(公告)日：1992-02-18

    申请号：US481845

    申请日：1990-02-20

    申请人： Geoffrey I. Blatch ,  Mark P. Taylor ,  Mark Fyfe

    发明人： Geoffrey I. Blatch ,  Mark P. Taylor ,  Mark Fyfe

    IPC分类号： C25C3/20

    CPC分类号： C25C3/20

    摘要： A process for controlling an aluminum smelting cell comprising monitoring the cell voltage and current, alumina dumps, additions, operations and anode to cathode distance movements, continuously calculating the cell resistance and the bath resistivity from said monitored cell voltage and current, monitoring the existence of low frequency and high frequency noise in the voltage of the cell, continuously calculating the time rate of change of resistance of the cell, suspending calculation for a predetermined time when an alumina dump, addition, operation or ACD movement occurs, establishing filtered resistance slope thresholds, determining whether the low frequency noise is above a predetermined threshold, and if so, increasing the filtered slope thresholds for low alumina concentration detection, calculating an alumina inventory from the alumina dumps, determining whether the cell is overfed, and if not feeding alumina to prevent an anode affect, calculating the heat supplied and heat required for aluminum production, calculating the heat available for dissipation, calculating the target heat for the cell, calculating the difference between the available heat and the target heat with respect to time, calculating a running heat inventory from the integral of this difference, establishing a target resistance for the cell and modifying that target resistance to achieve a zero heat integral, checking that the target resistance is an allowable value, and moving the anodes of the cell to establish the new target resistance, estimating the time rate of change of bath resistivity and checking whether resistivity and the derivative are greater than predetermined limits, and if so, adjusting the target heat of the cell to maintain the long term heat balance of the cell.