This article will mainly introduce some key points in vacuum pipe system designing of the composite-material workshop. Calculating methods of the conductance of vacuum pipe will be illustrated in detail and the principles of choosing vacuum pump and arranging vacuum pump station will be given. Problems requiring attention in the designing process will also be analyzed,which has positive meaning for vacuum pipeline system design of composite-material workshop.%主要介绍了复合材料厂房的真空管道系统的设计要点，详细阐述了真空管道流导的计算方式，确定了选择真空泵的方法以及真空泵站布置的基本原则，并对设计过程中需注意的问题进行了分析，对复合材料厂房的真空管道系统设计具有积极意义。
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