共查询到19条相似文献,搜索用时 171 毫秒
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10MW高温气冷堆燃料元件装卸系统的控制系统设计 总被引:3,自引:0,他引:3
10MW高温气冷实验堆(HTR-10)是一座球床型反应堆,燃料元件的装卸和循环不需要停堆,由燃料元件装卸系统自动实现。为保证HTR-10的正常运行,燃料元件装卸系统必须安全可靠运行。为此,控制系统根据HTR-10燃料装卸系统热实验装置控制系统的设计和运行经验,采用了欧姆龙(OMRON)C200H可编程控制器(PLC)作为核心部件。本文介绍了控制系统的设计方案、控制过程和PLC控制的特点以及用其实现 相似文献
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介绍了一种基于虚拟仪器技术研铜开发的高温堆燃料元件探测系统,该系统有效地解决了10MW高温气冷堆燃料元件装卸过程中现场复杂过球信号的计数判断问题,很大程度地消除了外界干扰,保证了计数的准确性,方便地实现了整个系统的智能管理。 相似文献
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基于控制Petri网的高温气冷堆燃料装卸过程控制系统设计方法 总被引:1,自引:0,他引:1
介绍了一种基于控制Petri网(CPN)的控制系统设计方法,通过将库所与输出和操作关联,将变迁与输入和条件关联,并引入了宏库所和宏操作,实现了对复杂控制系统的分层次设计.在分析燃料元件装卸系统(FHS)基本功能和装卸流程的基础上,利用CPN对其进行了分层设计.根据变迁的触发条件,设计的CPN可直接转换为PLC的LAD程序;该程序在FHS模拟控制系统试验台上进行了验证.应用结果表明,该方法具有设计结构清晰,描述严格准确,程序设计高效等优点,可以很好地满足球床式高温气冷堆(HTGR)燃料装卸过程控制系统的设计要求. 相似文献
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为了评价10 MW高温气冷堆(HTR-10)用燃料元件的性能,从第1和第2生产批次中分别随机抽取两个球形燃料元件进行辐照考验.辐照考验在俄罗斯的IVV-2M堆内进行,采用动态辐照试验的方法,可分别控制每个辐照盒中燃料元件的温度和测量气态裂变产物的释放.辐照后检验包括外观检查、尺寸测量、固体裂变产物在基体石墨内的分布测量、包覆燃料颗粒破损率测量和金相观察.辐照后检验结果表明辐照没有引起燃料元件中包覆燃料颗粒的破损, 生产的燃料元件满足10 MW高温气冷堆的设计要求. 相似文献
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《Journal of Nuclear Science and Technology》2013,50(4):662-668
The reactor refuelling system provides the means of transporting, storing, and handling reactor core subassemblies. The system consists of the facilities and equipment needed to accomplish the scheduled refuelling operations. The choice of a FHS impacts directly on the general design of the reactor vessel (primary vessel, storage, and final cooling before going to reprocessing), its construction cost, and its availability factor. Fuel handling design must take into account various items and in particular operating strategies such as core design and management and core configuration. Moreover, the FHS will have to cope with safety assessments: a permanent cooling strategy to prevent fuel clad rupture, plus provisions to handle short-cooled fuel and criteria to ensure safety during handling. In addition, the handling and elimination of residual sodium must be investigated; it implies specific cleaning treatment to prevent chemical risks such as corrosion or excess hydrogen production. The objective of this study is to identify the challenges of a SFR fuel handling system. It will then present the range of technical options incorporating innovative technologies under development to answer the GENERATION IV SFR requirements. 相似文献
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In the 10 MW High Temperature Gas-cooled Reactor-Test Module (HTR-10) fuel elements move through the core driven by gravity. To reach their design burn-up the fuel elements are re-shuttled five times. This transportation outside the core is mainly achieved pneumatically. Although, adopting the international experience at design and operation of similar systems some key components were improved so that the fuel handling system (FHS) becomes simpler and more reliable. The improved components were tested in full-scale testing facilities. The debugging test and the first loading operation for the FHS indicate that the FHS meets the demands of the HTR-10. In this paper, the functions, design parameters, technological processes, main components and design characteristics of the FHS are described in detail. The flow schemes, design parameters of the full-scale testing facilities and the experimental results are briefly introduced. 相似文献
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本文对320 kV全离子综合实验平台的控制系统升级进行了研究。升级后的控制系统采用分布式系统模型构建。硬件采用串口服务器、PLC及伺服电机等部件实现了所有被控设备的远程监测及控制。软件通过建立EPICS IOC动态数据库,实现了对所有被控设备的集成。用户操作界面层采用CSS开发,实现了操作人员对所有被控设备的透明访问。该控制系统已成功连续运行约10 000 h。目前该控制系统运行稳定、可靠,完全满足320 kV全离子综合实验平台的运行及物理实验的需求。 相似文献
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《Fusion Engineering and Design》2014,89(7-8):991-995
Resonant magnetic perturbation (RMP) has been proved to be an efficient approach on edge localized modes (ELMs) control, resistive wall mode (RWM) control, and error field correction (EFC), RMP coil system under design in EAST tokamak will realize the above-mentioned multi-functions. This paper focuses on the thermo-mechanical analysis of EAST RMP coil system on the basis of sensitivity analysis, both normal and off-normal working conditions are considered. The most characteristic set of coil system is chosen with a complete modelling by means of three-dimensional (3D) finite element method, thermo-hydraulic and thermal-structural performances are investigated adequately, both locally and globally. The compromise is made between thermal performance and structural design requirements, and the results indicate that the optimized design is feasible and reasonable. 相似文献
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Andrés Collazos Robert Bertizzolo René Chavan Frédéric Dolizy Federico Felici Mark A. Henderson Jean-Daniel Landis Francisco Sanchez 《Fusion Engineering and Design》2009,84(2-6):618-622
The main objective of the ITER ECRH upper launcher (UL) is to control magnetohydrodynamic activity, in particular neoclassical tearing modes (NTMs), by driving several MW of EC current near the q = 1, 3/2, 2 flux surfaces, where NTMs are expected to occur.The steering of the EC power is done by the steering mechanism assembly (SMA) that comprises a reflecting mirror and a frictionless and backlash free pneumo-mechanical system actuated with pressurised helium gas. The control requirements for this component in terms of steering accuracy and speed are reviewed. With respect to these requirements, the performance of the first SMA prototype is assessed in a mock up of the UL pneumatic configuration.The expected design characteristics of the SMA have been verified and an overall satisfactory performance has been assessed. Furthermore, the main challenges for the future work, such as the pressure and angular position control, have been identified. 相似文献