关键词:共振频率;离心风机;蜗壳 [gap=845]Key words: resonance frequency; centrifugal fan; volute casing
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double volute casing [机] 双蜗形体
volute casing cover 联结蜗壳底盘
primary volute casing collector 一级蜗壳除尘器
suction double volute casing pump 立式端吸双蜗壳泵
variable-velocity volute casing 变速蜗壳
Horizontal, single stage uncooled volute casing pumps for handling of mineral and synthetic heat transfer oils.
不需冷却的单级涡壳泵，用于处理矿物或合成热传导油。
The optimization design method, which considers the impeller and volute casing as a whole and the effects of viscosity, is proposed.
提出将叶轮、蜗壳作一体的并考虑粘度的油泵水力优化方法。
The experiments of an oil film visualization technique are accomplished on the surfaces of impeller, inlet segment and partial meet face between inlet segment and volute casing.
对螺旋离心泵叶轮、进水节和进水节与蜗壳交界处的部分端面做了表面油膜、油点试验。
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