CAJ | 학술논문

凝汽器清洁系数是评价凝汽器性能最重要指标，其变化对循环水泵最优化调度将产生较大影响。在分析了凝汽器水侧污垢增长简化理论模型的基础上，得到凝汽器水侧污垢随时间变化的基本规律，分析了清洁系数随运行时间和冷却水流速变化的规律，并通过某600MW超临界汽轮机凝汽器循环水泵最优化调度作为实例，对凝汽器端差、凝汽器真空随清洁系数的变化趋势进行了分析，分析结果表明，不同清洁系数对循环水系统的优化运行方式造成影响，并得到了不同负荷、不同循环水温度及不同清洁系数下循环水泵的最佳运行方式，对火电厂循环水系统的运行具有一定的指导意义。
응기기청길계수시평개응기기성능최중요지표，기변화대순배수빙최우화조도장산생교대영향。재분석료응기기수측오구증장간화이론모형적기출상，득도응기기수측오구수시간변화적기본규률，분석료청길계수수운행시간화냉각수류속변화적규률，병통과모600MW초림계기륜궤응기기순배수빙최우화조도작위실례，대응기기단차、응기기진공수청길계수적변화추세진행료분석，분석결과표명，불동청길계수대순배수계통적우화운행방식조성영향，병득도료불동부하、불동순배수온도급불동청길계수하순배수빙적최가운행방식，대화전엄순배수계통적운행구유일정적지도의의。
The fouling on the condenser water-side wall is an important factor that impacts the cleanness coefficient of condenser in the optimization of designing ,operation and improvement of opening cooling water circulation system .Based on the mechanism of foul-forming, a comprehensive prediction model of fouling growth on condenser water-side wall is constructed in this paper .Through analyzing the simplified theoretical model of fouling growth ,the characteristic of fouling deposit,effects of working time and cooling water velocity are discussed .Taking a 600MW supercritical steam power plant's condenser as an example ,the accurate estimation and prediction of cleanness coefficient can be obtained with this model . The effects of the temperature difference and pressure of condenser are analyzed at the same time ,and the work conditions of water circulating with different cleanness coefficient are obtained .With the evidence of some condenser fouling growth ,it can be concluded that the present model is validity and would be contributed to water circulating optimization of condenser .