【作者】 王元；

【导师】 韩伟实；

【作者基本信息】 哈尔滨工程大学 ， 核能科学与工程， 2010， 硕士

【摘要】 我国核电事业进入了第三代先进压水堆建设阶段,针对非能动系统设计与核能安全的研究是确保和平、安全利用核能的重要课题。核电站的动力装置、安全设施、控制系统都是非常复杂的,安全系统往往要设置更多的冗余以确保功能的完善。论文基于这样的背景提出了对一回路压力安全系统简约化控制的研究。论文从广义非能动的概念出发,剖析了非能动系统的结构,分析对比了大亚湾、田湾核电站与AP1000核电机组的压力安全系统,结合新型控制阀与小型PLC组建一回路压力安全控制系统,设计了动态实验。实验验证,所设计的系统控制效果好,系统参数调整简捷,自动化程度高,便于寻找故障;设备简单,可靠性高,扩展性好;节能效果好,成本低廉。论文的研究说明控制阀在卸压系统中替代传统的弹簧式安全阀是可行的,广义非能动理念在实际系统设计中具有重要的意义,能促使所设计的系统趋于小型化、智能化和自能源化,并具有高度的可靠性和安全性,具有广泛的应用价值和良好的发展前景。更多还原

【Abstract】 China has stepped into the era we called to build the third generation advantage pressurized-water reactor.Design passive systems and the research about nuclear safeguard are hot points to assure we use nuclear energy peacefully and safety.Power plants, safety devices, even the control systems are so complex which we built added redundancy frequently to keep their function perfect.This research is to be suggested under such background.This paper to start out with the concept of General Passive, analyzed the structure of the passive systems, the pressure relief system located in the Daya Bay, Tianwan Power plant and also the AP1000.We imitated a control system in pressure safety system belong to primary circuit with a new technology control valve and PLC (Siemens S7-200), then design a dynamic test. The experiment proved that the system we built has a satisfactory effect and we can change system’s parameter conveniently in software-program. To our satisfaction, automatic level of the control system is high; the devices we used to build the system are not complicated. It is convenient for us to search error. System’s reliability is good and it can be extended easily. The whole system will improve the energy utilization rate and has a lower cost.The study of this paper illustrates that it is feasible we using control valve instead of safety valve in the pressure relief system. The idea of using General Passive techniques in practical system design is of great significance. This idea is promote the systems which we will design to achieve miniaturization, intelligentize and self-power supply.更多还原