我厂催化裂化装置分馏塔塔底泵为６５ＰＹｍ１００型泵，其介质为３６０℃油浆，压力为０９ＭＰａ。由于工艺的原因，油浆中含有固体颗粒状催化剂，对泵的磨蚀比较大，泵体部位尤为突出。因此，我们根据磨损情况更换了新泵体，泵体材质为１Ｃｒ１３钢，但使用后仅２０ｈ... Our plant catalytic cracking unit distillation tower bottom pump is 65PYm100 type pump, the medium is 360 ℃ slurry, the pressure is 0 9MPa. Due to process reasons, the slurry contains solid particulate catalyst, the pump is relatively large abrasion, the pump body parts are particularly prominent. Therefore, we have replaced the new pump body according to the wear condition, the material of the pump body is 1Cr13 steel, but only 20h after use ...