中心管 Center Pipe

中心管/内篮是径向流反应器内件系统的重要组成部分,通常呈圆筒形状垂直分布于反应器中央,中心管的外表面与扇形筒/外蓝内表面之间构成了催化剂床层。中心管/内蓝的入口既可以在设备顶部,也可以在设备底部,介质流向既可以由内而外,也可以由外而内。通常,中心管/内网可以通过设备的顶部人口装入,坐落于设备底部的支撑部位上。总的来说,中心管/内网在高温高压的工艺条件下大大降低催化剂床层的压降,增加催化剂与介质的接触面积,防止堵塞,增加设备热胀冷缩空间等方便具有无可替代的优越性,大大地提高了工艺效率和产量,长期来看,也是节约了客户的生产成本。广泛应用于催化重整、脱硝设备、苯乙烯、合成氨、加氢脱硫、流化床、PX、异构化等装置。 Centerpipe / inner screen is the central screen component of a radial flow system。Its general shape is a cylinder which outer surface delimits the inner side of the catalyst bed。 It is usually extending inside vertical reactors and collecting or distributing the flowConnecting nozzle to the centerpipe / inner screen is either the upper or the lower one。 Flow direction can be inward or outward。Usually, the centerpipe / inner screen can be introduced through the vessel top manhole。 It is standing on a support that maintains it in position。Generally, the centerpipe / inner screen is on the high temperature or high concentration side of the process flow as there is less stress to the vessel shell with high temperature / high concentration in the middle。In addition, there is more room for thermal expansion alongside the vessel axis。we are experts in major processes including Catalytic Reforming,Styrene Dehydrogenation,LAB,Sulfur Treatment,HDS/HDT,Ammonia Conversion,PX,etc。

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