| The Circulation-hydrogenation Compressor Model BLC-305/A is an important equipment with Hydrogenation devices, which is imported by Lanzhou Petrochemical Company Refinery. Due to high-speed rolling periodically, the spare parts of this compressor, to a varying extent, show a lot of signs of wear and tear. Especially, the axle sleeve of the rotor axle of the compressor is so worn to the greatest degree that its work efficiency decreases by a big margin. Machinery Factory of Lanzhou Petroleum Processing and Chemical Complex has undertaken this task to repair the rotor. In accordance with the structural characteristics of the import installation, the technological process of hot assembly has been analyzed and discussed carefully. As a result, the difficult productive problem that the high-precision rotor without using central hole forced fit the arrangement of the axle sleeve has been solved and its rotor has been succeeded in repair. With reference to the level, Chinese-made metallic material has replaced the import one, which lays a foundation to transform import installation into Chinese-made one and repair. At present, it is running smoothly and steady, the repair of which has achieved desired results. |
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