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Bulging deformation of ethylene compressor base-box

机译：乙烯压缩机箱的胀形变形

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摘要

A bulging deformation is observed on the side plate of base-boxes of a centrifugal ethylene compressor in a refinery plant. Because the height reduction of the base-box induced by such deformation will affect the normal operation of the compressor-unit if beyond the permitted scope, research work was carried out by means of numerical simulation and experimentation to identify the possible causes of the deformation. The results indicated that the bulging deformation of side plates is the consequence of cyclic plastic deformation, which is caused by icing and thawing in the chamber of the base-box, accumulated for a long time, The deformation of the base-box will not grow continuously under the working condition, and will not influence the normal operation of the compressor. It is suggested that the box need not be replaced until the next overhaul and an opening should no longer be present in the top plate of the new base-box.
机译：在炼油厂的离心乙烯压缩机的底盘侧板上观察到鼓胀变形。由于这种变形引起的底盒高度降低，如果超出允许范围，将会影响压缩机组的正常运行，因此，通过数值模拟和实验研究工作进行了研究，以确定可能的变形原因。结果表明，侧板鼓胀变形是周期性塑性变形的结果，这种周期性塑性变形是由于在基盒的腔内结冰和融化引起的，并长时间积累，基盒的变形不会增长。在工作状态下连续运转，不会影响压缩机的正常运行。建议在下一次大修之前不要更换盒子，并且新底盒的顶板上不应再有开口。

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