对主蒸汽管断裂原因进行了分析。
摘要：主蒸汽管道振动严重影响机组运行安全。
Vibration of main steam pipe seriously affect the unit's running security.
还介绍了超期服役主蒸汽管道剩余寿命试验结果。
The experimental results of steam pipes which has been in operation over 100,000 hours are also reported.
最后运用神经网络算法对主蒸汽压力进行系统辨识。
Finally use neural network to do algorithm for the main steam pressure system identification.
提高主蒸汽出口的温度会增加蒸汽在汽轮机中的可用焓降。
Increasing the main steam outlet temperature will increases the available enthalpy drop in the turbine.
本文以金相分析与断裂力学方法研究了主蒸汽管道蠕变破裂过程。
In this paper, the fracture process in creep of main steam pipeline is studied by metallographical and fracture mechanics.
炼油厂许多主蒸汽管线，直经和质量较大，管线在管架上常被拉裂。
Many main vapor pipes in oil refineries have long diameter and big weight, so the pipes often crack on the common supporters. A new sliding supporter is designed to solve the problem.
该系统在床层温度不越限的情况下，以控制主蒸汽压力稳定为主要目标。
The main aim of this system is to keep main vapor pressure stable when the bed layer temperature is within a limit.
通过分析混燃锅炉燃烧系统的三大目标，重点分析了其中的主蒸汽压力控制。
Through analyzing three targets of multifuel fired boiler burning system, we emphatically analyzed the control of main steam pressure.
首先，能过作为一个自动逆止阀，防止蒸汽从主蒸汽加热器上倒流到锅炉里。
First: to act as an automatic non-return valve by preventing a backflow of steam from the main steam header to the boiler.
热力钢弯管是主蒸汽管道的薄弱部位之一，其寿命直接关系到整个管道系统寿命。
The heat - resisting steel elbow is one of the weak parts of the main vapour piping, the life of which is directly related to the life of entire piping system.
P 92钢是目前超超临界机组主蒸汽管道的应用钢种，其蠕变断裂寿命被广泛关注。
The P92 steel is a steel sort being used for main steam pipelines of ultra-supercritical units at present, its creep rupture life has widely drawn close attention.
对电厂锅炉主蒸汽温度控制的仿真结果表明了此控制器及其学习算法的可行性和有效性。
The simulations on the main steam-temperature control system of the electric plant boiler show that the controller and its training algorithms are possible and effective.
本课题选取适合寿命评估的高温高压部件，如主蒸汽管道及过热器管进行寿命管理研究。
In this paper, high temperature and high-pressure components fitting for life assessment such as main steam pipeline and boiler tube were selected for life management studying.
结果表明，造成主蒸汽滤网开裂的主要原因是晶界高温氧化，断口呈典型的沿晶开裂特征。
The results show that the main reason for the cracking was high temperature intergranular oxidation, with the fracture morphology being a typical intergranular cracking character.
一核电厂主蒸汽管线存在振动和噪声过大，大修时还发现主蒸汽隔离阀闸板存在一定的磨损。
There are over high vibrations and noises of the main steam piping lines of a Nuclear Power Plant. Wear abrasion of the main steam isolation valves was found during the fall outage.
结果表明，该主蒸汽管道的弯头、焊缝热影响区和三通等部位石墨化严重，部分部件需要更换。
The results show that the graphitization of the bent, HAZ and tee of the main steam pipeline stand is severe, and the relevant components should be replaced.
在线监测主蒸汽系统的放射水平是提高船用核动力和气轮机系统的可用率和运行重要措施之一。
The radioactive level of the online-detection main steam system is a key measurement to improve the utility rate of turbine system of the nuclear power.
基于主蒸汽压力降阶近似模型和二次型最优控制原理，给出了主蒸汽压力的LQ次优调节策略。
Based on degraded and approximate model of main steam pressure and linear quadratic optimal control theory, the LQ sub-optimal regulation strategy is presented.
如何使主蒸汽压力既具有良好的动态特性，又能使入炉燃料得以充分燃烧，是燃烧过程控制的关键。
How to keep the main steam pressure having better dynamic characteristic and keep the fuel entered the boiler burning thoroughly is most important to combustion process control.
对主蒸汽压力控制系统、床温测量系统、床温校正系统和主燃料跳闸的动作条件进行了详细的分析。
The main steam pressure control system, bed temperature measure system, bed temperature adjust system and action condition of main fuel trip (MFT) are analyzed.
最后，给出在83 %FP以下的功率运行下进行主蒸汽安全阀定值校验试验的窗口安排与注意事项。
Finally, scheduling and precautions for verification tests of the calibration pressure of main steam safety valve under 83 % FP power level are given.
目前新建的亚临界机组中，主蒸汽管道及再热蒸汽管道热段的材料已用P 91钢代替P 2 2钢。
Steel P91 has been used instead of P22 as the material for main steam and high temperature reheat steam pipelines in new built subcritical pressure units.
结果表明，断裂是由腐蚀疲劳引起的，阀体材质不舍格和焊接结构不合理是主蒸汽管失效的主要原因。
The results shown that the rupture is caused by corrosion fatigue. The main reasons of failure of main vapour tube are unqualified valve material and unreasonable welded construction.
如果连接主蒸汽热水器的锅炉不止一个，则在每个锅炉与热水器之间的管路上都应该安装一个截止止回阀。
When more than one boiler is connected to the main steam header, a stop check valve should be installed in the pipeline between each boiler and the header.
对北仑电厂2号机组DAS系统主蒸汽流量指示值出现偏差的原因进行分析，找出原计算模块中存在的问题。
Causes of deviation of the main steam flow value indicated in DAS system for Beilun power plant unit 2 are analysed. The problems are found in the original calculation model.
基于主蒸汽管道中16N核素监测的蒸汽发生器泄漏率监测方法，目前已成为蒸汽发生器泄漏监测的主导方法。
The method of through monitoring 16N activities in the main steam pipe to get the leak rate of steam generator, now is the main way of steam generator leak rate monitoring.
对邹县发电厂四期工程和系统状况进行了介绍，确定了主蒸汽系统和主给水系统管道的设计参数，选择了管道材料。
Project and system situation in Zouxian Power Plant were introduced, and the piping design parameters and the piping material of main steam system and main feed water system were determined.
对邹县发电厂四期工程和系统状况进行了介绍，确定了主蒸汽系统和主给水系统管道的设计参数，选择了管道材料。
Project and system situation in Zouxian Power Plant were introduced, and the piping design parameters and the piping material of main steam system and main feed water system were determined.
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