3台50%容量调速给水泵配置下的全程给水控制系统

Full Range Feedwater Control System for Three 50% Capacity adjustable speed Feedwater Pumps Arrangement

结合南京热电厂５ 号机组３ 台５０ ％ 容量调速主给水泵组成的给水系统实例，提出一种新的全程给水控制系统设计方案。该方案符合高效节能设计和工程化要求，调节给水泵转速直接控制汽包水位，经济效益显著。

No.5 generating unit of Nanjing Cogeneration Power Plant employs feedwater system composed of three 50% capacity adjustable speed main feedwater pumps.Combined with this practical example,a new full range feedwater control system design scheme is proposed.This scheme can meet the requirements for high efficiency energy saving design and application in project,with water level of boiler drum directly controlled by adjusting rotational speed of feedwater pumps.The economic benefit is obvious.