Abstract The medium-consistency (MC) pump is the key unit in modern pulp and paper industry, especially in medium-consistency bleaching plant. Use of MC pump improves the efficiency of bleaching sequences and reduces the pollution load of bleaching effluents. In this work, the component of MC pump, e. g. turbulence generators with three typical structures were studied to evaluate the effects of turbulence generator structure on the performance of MC pump. An automatic control system was built to control operation condition and to collect data online. Head and efficiency were calculated to evaluate the differences among three turbulence generators. The results showed that the linear-type, twist-type and screw-type turbulence generators exhibited similar performance (pump head and efficiency) of MC pump at high rotation speed (2000 rpm to 2900 rpm) compared to the well-known performance of MC pump at rotation speed lower than 2000 rpm which are significant different for the three turbulence generators.

中文翻译：

---

湍流发生器结构对中浓泵2000转以上高转速性能的影响

摘要 中浓（MC）泵是现代制浆造纸工业特别是中浓漂白厂的关键装置。MC泵的使用提高了漂白工序的效率，降低了漂白废水的污染负荷。在这项工作中，MC 泵的组成部分，例如。G。研究了三种典型结构的湍流发生器，以评估湍流发生器结构对MC泵性能的影响。建立了自动控制系统来控制运行条件和在线收集数据。计算扬程和效率以评估三个湍流发生器之间的差异。结果表明，线型、