汽包斜吊偏移特性的分析

根据锅炉汽包吊装参数，分析了汽包斜吊偏移的特性及其影响，并给出了解决汽包偏移的方法和改进汽包吊装方案。     

汽包水位测量装置异常的原因分析及改进

分析了大唐略阳发电有限责任公司5号锅炉汽包水位测量装置异常情况，对该汽包水位测量装置进行了改进，修改了汽包水位保护逻辑，提高了汽包水位保护系统的可靠性。     

汽包斜吊偏移特性的分析

根据锅炉汽包吊装参数，分析了汽包斜吊偏移的特性及其影响，并给出了解决汽包偏移的方法和改进汽包吊装方案。     

汽包上下壁温差对锅炉运行安全性影响的研究

通过电厂锅炉汽包温度实测和模拟汽包实验，研究汽包温度分布规律：在此基础上进行热光弹性实验和三维有限元分析，求得汽包的热应力和下降管加热应力集中系数，分析运行汽包的温差限值，为电厂锅炉的运行提供了科学依据。     

一起汽包水位测量异常导致锅炉MFT事故的分析

某电厂锅炉采用哈尔滨锅炉有限责任公司生产的亚临界一次中间再热自然循环单炉膛汽包锅炉，型号为：HG—1156／17．4-YM1。汽包东侧装有远传水位计（L003）和汽包压力（P002）测点；汽包西侧装有2只采用多测孔技术改造后，取样管分离的独立汽包远传水位计（L001、L002）和1个汽包压力（P001）测点。汽包远传水位计采用同侧汽包压力测点进行压力补偿，温度补偿采用定值补偿。     

锅炉停炉后汽包壁温差的控制

员村热电有限公司锅炉为自然循环汽包炉，在停炉后汽包壁温差常常大于40℃，甚至高达100℃以上，严重威胁锅炉汽包的安全。本文对员电锅炉停炉后汽包壁温差偏大的原因进行分析，寻求控制对策，在采取这些对策后，停炉后汽包壁温差基本控制在允许范围内。     

元宝山电厂三期工程汽包倾斜吊装的状态分析

元宝山电厂三期工程２００８ｔ／ｈ锅炉汽包长度大于锅炉构架联梁净距，而锅炉构架联梁又不允许缓装，汽包只能倾斜提升，这就需要分析汽包在空中的倾斜状态，以获得越过联梁的控制参数及吊具的受力大小，此文对汽包倾斜提升状态的分析，对汽包吊装具有普遍意义。     

计算机在大型锅炉汽包吊装中的应用

文中通过大型锅炉安装中汽包吊装的各主要设备受力及应力，效率等理论模型的建立，使电厂大型锅炉汽包吊装更加程序和科学化，为电厂大型锅炉汽包吊装设备的选择，校核提供了依据。作者根据理论模型编程与现场的锅炉汽包吊装进行校核，结果吻合。     

自然循环锅炉汽包寿命计算及影响因素分析

文中叙述了汽包寿命的计算方法，并针对各种运行工况计算出寿命消耗量，根据理论计算结果分析影响汽包寿命的主要因素，提出了增加汽包寿命的方法。     

锅炉汽包水位问题

本文叙述了汽包水位计在设计、制造、安装、检修方面存在的问题，分析这些问题对汽包水位的影响，以使汽包水位能得到准确的控制，确保锅炉能安全、可靠的运行。     

Brittle fractures of the drums of high-pressure boilers: Main causes and methods for preventing them

Factors causing damage to the metal of the drums of high-pressure boilers, as well as the known cases of drum failures, are analyzed. The totality of factors determining the operational reliability of drums is systematized. The process-related mechanism governing the destruction of the drums at the Kurgan cogeneration station and TETs-3 Yaroslavl cogeneration station, and the general factors caused these drums to fail are identified. Recommendations for reducing the risk of drum failures are formulated.     

电站锅炉汽包的安全性评定和剩余寿命评估

低周疲劳损伤是电站锅炉汽包的主要失效形式。分析了电站锅炉汽包在运行工况下的应力状态,认为介质内压应力和温差热应力是影响汽包低周疲劳寿命的主要因素;描述了采用有限元数值计算法评定无缺陷和有缺陷汽包的安全性及剩余寿命的一般方法。     

Comprehensive investigation of the metal in drums of boilers at thermal power stations

A comparative investigation of the metal of drums of two TP-100 boilers at the Starobeshevskaya and the Lugansk thermal power stations (TPS) was performed. Their operation time was approximately 300000 hours; the shell of one drum was ruptured during a hydraulic test, and the other drum is in operation. According to the results of the technical diagnostics and a strength analysis, both drums comply with the applicable regulatory requirements. The objects of the investigation were fragments of the ruptured drum and a “plug” cut out of the shell during a scheduled inspection. The investigation was carried out by microscopic metallography methods and the scanning electron microscopy technique. Mechanical tests of metal specimens were performed, and the hydrogen content in these specimens was measured. Prior to the material research, the metal was examined using a magnetic memory method. The investigation yielded specifics of the metal microstructure, mechanical properties, and fracture patterns of the metal specimens at various temperatures. An investigation performed by the method of thermal-desorption mass spectrometry revealed no considerable difference in the hydrogen content in the metal of both drums, thereby excluding the effect of hydrogenation in analyzing the rupture causes. It was established that the drum at the Starоbeshevskaya TPS had been damaged due to its low impact strength at room temperature and high brittle-ductile transition point. Comparison of the metallographic study data with the results obtained using the magnetic memory method suggests that the fracture was caused by local formation of the Widmannstatten pattern at points where accessories are welded to the shell. The prospects are demonstrated of the comprehensive approach to nondestructive examination (NDE) of TPS drums using the magnetic memory technique and metallographic methods.     

水管锅炉锅筒低周疲劳寿命计算

根据相关标准,调峰负荷机组必须进行锅炉锅筒的低周疲劳寿命计算,否则,严重影响机组的安全、经济运行.为此,针对锅炉锅筒运行时容易产生疲劳损耗的几种情况,给出锅筒低周疲劳寿命损伤的计算方法,同时介绍了利用计算机程序人机界面来计算锅炉锅筒低周疲劳寿命损伤流程,对于基层技术人员有一定的参考价值.     

Studying the metal of steam boiler drums made of grade 16GNM steel after its long-term operation

Results from a study of the structure and properties of the metal of drums made of Grade 16GNM steel that have been in operation for a long period of time are presented. A change in the strength characteristics and fracture ductility of metal with respect to its initial properties indicated in its certification data is analyzed. It is shown that changes in the strength properties of the metal of drums do not demonstrate any stable trends with an increase in the time of its operation.     

磁旋转编码器多极磁鼓的研制

通过分析磁编码器的原理和结构，采用粘结磁体做磁编码２器多极磁鼓记录介质材料，运用一体成型工艺，研制出了多种型号的磁鼓，并经鼓进行了充磁和气隙磁性能分析。     

锅炉汽包钢板高温强度及硬度的研究

对锅炉汽包用ＳＡ２９９、ＢＨＷ３５钢的强度、硬度进行了研究，给出了在不同温度下硬度与强度的对应关系曲线和按硬度计算高温强度的方法；同时，研究了这两种钢的应变硬化指数随温度变化的规律，用高温硬度法研究了ＳＡ２９９、ＢＨＷ３５钢的挤压应变能随温度变化的规律。     

锅筒筒体和圆筒型集箱体弯曲应力的计算机校核

本文介绍了按照GB9222－88的规定，利用计算机在Win95－Win98环境下对锅筒筒体和圆筒形集箱筒体的弯曲应力进行核核的方法。     

在役电站锅炉汽包的疲劳寿命评价

本文在对我省锅炉汽包运行时间和用材的调查基础上，提出了对长期运行的汽包进行疲劳寿命评价的必要性，并根据有关规范给出了疲劳寿命计算的步骤。     

基于传递函数的锅炉汽包热应力模型

对锅炉汽包的热应力求解,从控制的角度得出了内壁和外壁对蒸汽温升率单位阶跃的响应函数模型。根据这个结果,可以将此模型计算出的热应力和机械应力合成计算汽包或联箱的应力幅。这个模型非常适合于在线问题的实现,可以应用于锅炉汽包寿命在线监测系统或锅炉快冷装置中。