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鉴于L41×49WD-1型罗茨风机的结构特性,维护检修较困难,而风机工作间隙的调整是罗茨风机整个检修过程中最关键也最不易掌握的一步。仔细研究罗茨风机的结构,分析出叶轮旋转一周的过程中,在±45°的位置上(指叶轮压力角与水平线成±45°角度时)两叶轮之间的间隙是两叶轮之间最关键的间隙,且有两个+45°和两个-45°位置,在这些位置上,两叶轮最大轴向剖面刚好处于相对平行状态,由此可应用±45°调整法调整其工作间隙。
In view of the structural characteristics of the L41 × 49WD-1 Roots blower, maintenance and repair is more difficult, and the adjustment of fan working clearance is the most crucial and most difficult step in the entire Roots blower maintenance process. Careful study of the structure of the Roots blower, the analysis of the impeller rotation during a week, at ± 45 ° position (referring to the impeller pressure angle and the horizontal line at an angle of ± 45 °) the gap between the two impeller is the most important The key clearances are two +45 ° and two -45 ° positions where the maximum axial cross-section of the two impellers is just in a relatively parallel state and the ± 45 ° adjustment can be used to adjust its working clearance.