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催化裂化油浆泵进口阀常因油浆固粒的磨损而引起内漏,用常规的水冷方法对油浆泵进行在线修理颇为困难。为此,上海高桥石化公司炼油厂研制并采用了注蜡在线修泵的新方法。修理时只需在油浆泵出口放空管线处增接上注蜡管线、注蜡泵和蜡槽。将58号石蜡注入油浆泵使其冷却凝固后就可确保油浆泵拆修时无油漏出。实用证明,在线拆修油浆泵前后的2.5小时期间,其端面密封无油漏出,修复后即可投入运行。
FCCU slurry pump inlet valve often due to wear and tear of slurry caused by internal leakage, with conventional water-cooled oil pump on-line repair is quite difficult. To this end, Shanghai Gaoqiao Petrochemical Company refinery developed and used a new method of wax online repair pump. When repairing, it only needs to add the wax injection pipeline, wax injection pump and wax tank at the outlet pipeline of oil slurry pump. The No. 58 paraffin wax slurry into the pump after cooling solidification can ensure that the oil pump without oil leaks when the demolition. Practical proof, online repair oil pump before and after 2.5 hours period, the seal of its end without oil leakage, repair can be put into operation.