| 离心泵变频调速与节流分程协调节能控制 |
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| 引用本文： | 罗雄麟,张惜岭. 离心泵变频调速与节流分程协调节能控制[J]. 控制工程, 2009, 16(1) |
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| 作者姓名： | 罗雄麟 张惜岭 |
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| 作者单位： | 中国石油大学(北京)自动化研究所,北京,102249;中国石油大学(北京)自动化研究所,北京,102249 |
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| 摘 要： | 离心泵的变频调速是目前广泛采用的流量调节方法,高效节能是其最大优点,但是当流量降低时,可能造成压头过低而影响后续流程.对此,提出离心泵的变频调速与节流分程协调节能控制方法,当阀后压力大于一定值时,由流量控制器调节离心泵转速以改变泵的出口流量,当阀后压力小于一定值时,由流量控制器调节阀门开度以保持控制点需要的实际压头基本恒定,而中间段由转速和阀门开度协调控制,从而能够同时满足管路控制点所需的压力及流量.实验模拟效果证明了控制方案的可行性,并且流量与压力二者分程协调控制的节能效果显著.
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| 关 键 词： | 离心泵 节能 流量调节 分程协调控制 |
Variable-frequency Speed Regulation and Flow Regulation Split-ranging Coordinated Control of Centrifugal Pump for Energy Saving |
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| LUO Xiong-lin,ZHANG Xi-ling. Variable-frequency Speed Regulation and Flow Regulation Split-ranging Coordinated Control of Centrifugal Pump for Energy Saving[J]. Control Engineering of China, 2009, 16(1) |
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| Authors: | LUO Xiong-lin ZHANG Xi-ling |
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| Affiliation: | Research Institute of Automation;China University of Petroleum;Beijing 102249;China |
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| Abstract: | The flow rate control method of centrifugal pump widely used presently is the speed regulation method by frequency conversion.The main advantage is its high efficiency and energy saving.But it may cause low pressure and have impact on the following processes.To this problem,the variable-frequency speed regulation and flow regulation split-ranging coordinated control of the centrifugal pump for energy saving is given.When the pressure behind the value is higher than some value,the speed of pump is regulated ... |
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| Keywords: | centrifugal pump energy saving flow regulation split-ranging coordinated control |
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