The paper delineates the special features of boiler feedwatercontrol and discusses the main problems pertaining to control systems.
该文阐述了锅炉给水控制的特点，并对给水控制系统设计的主要问题进行了分析。
2
The stem seal of a feedwatercontrol valve uses expanded graphite packing in order to produce friction and to economize on energy for the control valve working.
电站锅炉给水调节阀的阀杆密封采用柔性石墨填料，既降低了摩擦力，又为调节阀的运行节约了能源。
3
This paper focuses on effects of the valve characteristics and the transfer pipe delay on dynamic performance for boiler drum level, under varying valve opening of the feedwatercontrol valve.