the boiler factory has 4 boilers now, 3 of them are made in china, they has some problems at steam drum water fluctuation.
其中3台国产锅炉存在汽包水位控制问题,经常造成锅炉误动作停炉,影响生产。
actual application for control of water level in steam drum presents that the fuzzy pid controller can improve the performance of system obviously.
对锅炉汽包液位的控制表明这种模糊pid控制器可明显提高系统的性能。
the water level control for the steam drum is all along a typical issue in the control domain.
锅炉汽包水位的控制一直是控制领域的一个典型问题。
the dynamic characteristics of steam drum water level along with its traditional control technology and the fuzzy control theory have been detailedly analyzed in this paper.
文中较为详尽地分析了汽包水位对象的动态特性和传统的控制技术以及模糊控制理论。
besides, the fatigue damage for both the boiler steam drum and the notch specimen under varied amplitude low cycles is investigated with the effect of average stress taken into account.
同时还研究了变幅低周疲劳下缺口试件和锅炉汽包的损伤,并考虑了平均应力的影响。
in the process of lifting the high pressure steam drum of a 9e hrsg, great deformation and stress may happened to the drum and associated pipes.