Recently, the CCR of Qilu Petrochemical refinery hydrocracking workshop successful switch to domestically produced high-speed secondary pump mechanical seals, modified to run in good condition.
近日，齐鲁石化炼油厂连续重整车间加氢裂化高速泵成功改用国产二级机械密封，改造后运行状况良好。
The welded metal bellows mechanical seal is largely used for the axial seal of hot oil pump in refinery.
焊接金属波纹管机械密封主要用于炼油厂热油泵的轴封。
A person familiar with the refinery set-up said that a naphtha pump could refer to a unit that transfers the light fuel into a hydrotreater before it is reformed into gasoline.
一位熟悉精炼厂布置的人士说道，石脑油抽提在其转化成汽油前或与轻质燃料的加氢处理设备相关。
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