增压泵组的节能优化研究

发布时间：2018-01-16 22:12

本文关键词：增压泵组的节能优化研究　出处：《流体机械》2017年09期 　论文类型：期刊论文

【摘要】：对增压泵组变压节能供水模式的实现方式和控制逻辑进行了理论分析和试验验证。构建一种以PLC和变频器相结合的控制系统,建立变压控制泵组的节能控制模型,包括管网系统用水需求预测模型、变压控制模型以及能效判据为主导的增减泵控制模型等,进而实现增压泵组的变压控制和节能运行。试验结果表明,控制模型的用水需求预测准确性可达90%以上,且敏感性较高;能效优化方案可有效改善泵组控制效果并能提高泵组能效。研究结果可为增压泵组节能运行及变压控制系统的设计提供参考。
[Abstract]:The realization mode and control logic of variable-pressure energy-saving water supply mode of booster pump group are theoretically analyzed and tested. A control system based on PLC and inverter is constructed. The energy saving control model of variable pressure control pump group is established, including the water demand prediction model of pipe network system, the variable pressure control model and the increasing and decreasing pump control model which is dominated by energy efficiency criterion, etc. The experimental results show that the accuracy of water demand prediction of the control model can reach more than 90%, and the sensitivity is high. The energy efficiency optimization scheme can effectively improve the control effect of the pump group and improve the efficiency of the pump group. The research results can provide a reference for the energy saving operation and the design of the variable pressure control system of the booster pump group.
【作者单位】：浙江大学;
【基金】：中国博士后科学基金项目(2016M601939)
【分类号】：TH38
【正文快照】： 1前言离心泵组变频恒压供水是目前国内广泛采用的一种节能供水模式,与传统供水设备相比,具有实时性好,节能效果强,避免水源二次污染等特点[1~4]。然而恒压供水设备在设计时,由于无法预估楼宇管路系统的流动损失及用户用水需求的波动性等因素,泵选型常留有较大余量,且供水需求

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