The stress is basing coal - fired boiler inflammation system feature and control demand to design a kind of fuzzy - pi controller on based of genetic algorithm to control it . the controller refers the error and its variety rate as its inputs . and , in order to make the control qualities much better , concerns them as the performance index to optimize the membership function of the fuzzy variables and the pi ' s controller parameter by means of online adjujsting the genetic algorithm , inflammation system steam pressure loop and economic inflammation loop 重点是针对燃煤锅炉燃烧系统的特点和控制要求，设计了一种基于遗传算法的模糊- pi复合控制器对其进行控制，该控制器以偏差、偏差变化率作为输入量，通过遗传算法在线调整模糊控制器的模糊变量隶属度函数和pi控制器的参数，从而达到优化模糊控制规则和pi控制器参数的目的，实现燃烧系统的蒸汽压力回路和经济燃烧回路的控制要求。
The main experiments : the relationship between the sonic intensity and the pressure of the steam that leak out of the boiler ; the relationship between the level of the intensity of the leak noise and the capability of boiler ; the effect that wave - guide tube has on the detection of leak noise ; the specialties of sonic intensity level of background noise and distributing in frequency 主要实验内容为：泄漏噪声声强级与泄漏蒸汽压力之间关系；泄漏噪声声强级与锅炉容量的关系；泄漏噪声声强级与泄漏孔径的关系；波导管对泄漏噪声测量的影响；炉内背景噪声的声强级和频域分布特点。
The paper is on how to set up lab platform of vapour spewing to uppercooling water surface to coagulate directly and to observe and analyse which vapour coagulate on the water surface , the results enable people to know the security system of nuclear power . the range of the pressure parameters of prz is from 0 . 2mpa to 0 . 6mpa , and the range of the initial temperature parameters of cmt is from 23 . 5 to 78 . 5 , all of the testing points are 30 and there are fifty thousand testing data . many results of vapour spewing to uppercooling water surface vertically to coagulate can get . for example : coagulating can make the water of cmt surge forcefully when vapour spews to uppercooling water surface , too many vapour - bubbles come into being and strike the water of cmt owing to rupture continually , all these will strengthen the surge because of the vapour pressure of cmt 实验中prz饱和蒸汽压力变化范围为: 0 . 2mpa - 0 . 6mpa , cmt中水初始温度变化范围: 23 . 5 - 78 . 5 ,实验中测试工况30个左右,实验测试数据50万余个,得出了很多与非能动安全系统相关的蒸汽垂直喷向过冷水表面凝结时的结论：蒸汽垂直喷入过冷水表面凝结时会造成cmt中液面的强烈波动和振荡，产生大量蒸汽汽泡，汽泡不断破裂对cmt中液体带来很大冲击，势必引起cmt中液体的振荡，造成cmt汽空间汽压不均匀，加强cmt液体的振荡和波动。
The # 9 and # 10 142mw heat supply units in gansu xigu power plant , the steam extraction main pipe system adopt westation control system of westing house company and deb coordination control policy in design . the coordination control policy successfully expand the whole the running range , from the normal running condition to abnormity running condition and start or stop condition , which simplicity base on burthen and main steam pressure coordination control 甘肃西固热电厂# 9 、 # 10142mw抽汽母管制供热机组，选用美国西屋公司westation控制系统，设计、应用了deb协调控制策略，从单纯作为负荷和主蒸汽压力控制协调的基本功能，成功扩展到整个运行范围，即从正常运行工况到异常运行工况及启、停工况。
Stability of main steam pressure is the foundation of the key parameter stability ( include the main steam temperature , the vapor pack water level , the oxygen content in the smoke etc . ) in the units , deb system increase the dependability and the economy greatly with the settlement of the energy ' s equilibrium between the boiler and the steamer 本机组利用先进的硬件设备dcs和优化的控制策略deb ，圆满解决了机组协调控制系统中主汽压力稳定性及负荷适应性这一主要矛盾。主蒸汽压力稳定是机组一切关键参数（包括主蒸汽温度、汽包水位、烟气含氧量等）稳定的基础， deb系统解决了机组锅炉和汽轮机之间能量平衡，使机组可靠性和经济性大大提高。
The theory of interface of two - phase fluid id used to analyze the role of the interfacial heat transfer resistance in cond ensation process , it shows that the interfacial heat transfer resistance can not be ignored under such a vacuum condition , and the effect on heat transfer process becomes declined with the increasing of vapor pressure 应用两相界面理论分析了汽液界面热阻在水平管内低压蒸汽冷凝过程中所起的作用，发现实验范围内汽液界面热阻不可忽略，且其对冷凝传热过程的影响随蒸汽压力的增大而减弱。
For example , the condenser algorithm considered the trouble condition such as the leak of tube , fail of seal in vacuum system , the lower shaft sea - ting steam pressure , pollute of tube , the high water level of hot - well . the heater algorithm considered the trouble condition such as the leak , pollute of feed - water pipe and high water level of heater 如凝汽器算法考虑了铜管泄漏、真空系统密封不严、轴封蒸汽压力低、铜管结垢污染、热井水位过高等故障项目，加热器算法考虑了给水管道泄漏、给水管道污染、结垢、加热器水位过高等故障项目。
