drum speed control 中文意思是什麼
drum speed control
解釋
脫粒滾筒轉速調節器-
According to the operation of subcritical reheat controlled circulation drum boiler, this paper analyses the factors which affect the responding speed to unit load, through modifying the coordinating control system, fully using the boiler ability of heat accumulation and other methods, the author puts forward some measures to raise responding speed to unit load
分析了影響中間儲倉式汽包爐機組快速響應電網負荷變化的因素，通過對協調控制系統的改進，以及充分利用鍋爐蓄熱能力等方法，提出了提高機組快速響應負荷變化的幾條途徑。 -
During unit startup and load is lower than 15 %, drum level is controlled by feedwater control valve, feedwater pump remains at minimum safety speed ; when load is between 15 % and 25 %, feedwater control valve is closing at fixed speed determined by function module, main motor - operated - valve is opened automatically, control mode of drum level is transferred to feedwater pump automatically and bumplessly ; when load is between 25 % and 50 %, control valve is closed fully, and main motor - operated - valve is open fully, drum level is controlled by one pump ; when load is more than 50 %, first pump is kept in operation, second pump is putting into operation automatically and
在機組啟動、沖轉及機組並網至15 %負荷階段，給水泵維持在最低安全轉速下運行，汽包水位由低負荷給水調節閥自動控制; 15 %至25 %負荷階段，給水調節閥由函數模塊按照一定的速率自動平滑關閉，主給水電動門自動打開，汽包水位控制方式自動無擾切換為給水泵自動控制;負荷在25 %至50 %階段時，給水調節閥已完全關閉，主給水電動門已完全打開，水位控制已全由單臺給水泵承擔;負荷大於50 %后，在第一臺給水泵運行的同時，第二臺給水泵自動無擾投入。
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