冲转 meaning in English
write down
Examples
- 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
在机组启动、冲转及机组并网至15 %负荷阶段,给水泵维持在最低安全转速下运行,汽包水位由低负荷给水调节阀自动控制; 15 %至25 %负荷阶段,给水调节阀由函数模块按照一定的速率自动平滑关闭,主给水电动门自动打开,汽包水位控制方式自动无扰切换为给水泵自动控制;负荷在25 %至50 %阶段时,给水调节阀已完全关闭,主给水电动门已完全打开,水位控制已全由单台给水泵承担;负荷大于50 %后,在第一台给水泵运行的同时,第二台给水泵自动无扰投入。 - Combined with practice of rotation - impulsing for steam - driven feed - water pump by using standby steam source in yahe - kou power - generation co ltd , the feasibility and economic behavior of rotation - impulsing for steam - driven feed - water pump , and warming turbine and pump up in advance by using standby steam source to shorten cold - state start - up time , and to save start - up expenses , have been analysed
摘要结合鸭河口发电公司采用汽动给水泵备用汽源冲转的实践，分析了汽动给水泵采用备用汽源冲转，提前进行暖机、暖泵，缩短冷态起动时间、节约起动费用的可行性和经济性。 - Thermal stress control system actually gather the real - time data of unit sets ， compute temperature fields ， stress fields and maximum dangerous stress by the math modal ， decide target and speedup rotation in every stage of startup process ， and justify automatically to realize auto control a serial of processes of turbine ， such as speedup ， warm - up ， connecting net ， load changing ， stop and unsteady condition etc ， and improve automatic level of the unit sets . turbine auto startup ( tas ) system can automatically evaluate steam turbine ' s startup and load changing process according to thermal stress of
热应力控制系统实际是对机组运行参数进行实时采集与监控，通过数学模型实时地计算高、中压缸转子的温度场、应力场分布，以及最危险热应力，以确定启动过程各阶段的目标转数及升速率，并进行自动调整，实现机组冲转、升速、暖机、并网、升负荷、停机以及异常工况下的自动控制，大大提高了机组的自动化水平。