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针对现有火电厂调节阀工作流量特性呈快开宽饱和型的非线性特性而影响自控系统的投运与控制品质的问题,在确定的压降比下以系统所需要的阀工作特性设计阀的新固有流量特性,或采用智能补偿器校正补偿现有阀的流量特性,是一有效方法。改进调节阀的流量特性会显著提高电力生产过程中的自控水平,并产生可观经济效益。
In view of the problem that the flow characteristics of the control valve of the thermal power plant are rapidly opening and saturating nonlinearity and affect the operation and control quality of the automatic control system, the valve is designed under the required pressure drop ratio to design the valve Of the new intrinsic flow characteristics, or the use of intelligent compensator to compensate for the existing valve flow characteristics, is an effective method. Improving the flow characteristics of the control valve significantly increases the level of automation in the power production process and produces considerable economic benefits.