1) boiler tube
锅炉管
1.
Countermeasures against massive exfoliation of oxidation scale on the internal surface of coarse grained 18-8 type stainless steel boiler tubes;
18-8系列粗晶不锈钢锅炉管内壁氧化皮大面积剥落防治对策
2.
The paper summarizes the relative theory,methods and practical applications for checking and life span measuring the high temperature boiler tube,which provides the scientific basis for its use and Maintenance.
针对高温锅炉受热面管实际使用环境十分恶劣的状况,分析了其实际使用比原设计寿命缩短需要更换的原因,综述了高温锅炉管状态检验与寿命评估技术的原理、方法及其在电厂中的实际应用,为运行和维修决策提供科学的依据。
2) boiler pipe
锅炉管
1.
Taking one kind of specification boiler pipe as the object of study, the cracking parent metal, the cracking fragment and the primary goods were analyzed by vertical and horizontal directions.
以某种规格锅炉炉管为研究对象,在炉管爆裂处的母材、撕裂碎块以及供货原材料的纵横两个方向分别取样进行分析,探讨锅炉管爆裂处的金相变化对炉管失效的影响,并给出锅炉炉管爆裂破坏的金相学原因。
3) boiler tube
锅炉炉管
1.
The feedwater quality was examined and the corrosion mechanism of the boiler tube under present condition was probed into.
对稠油开采设备热采注汽锅炉破损炉管的材料进行了宏观检查、化学成分分析、金相分析、常温力学性能分析,并检测了给水水质,探讨了锅炉炉管在当前条件下的腐蚀机理。
4) boiler pipe
锅炉炉管
1.
A boiler pipe was analysed by means of macro-morphology, chemical composition, measurement of wall thickness and diameter, optical microscope, X-rays, mechanical properties, scanning electron microscope(SEM) and EDS in this paper.
对所取锅炉炉管材料进行了宏观检察、化学成分、壁厚与管径测量、光学金相组织、X射线、常温力学性能、断口扫描电镜、能谱元素等试验分析 ,结果表明锅炉炉管材料的局部腐蚀主要是氧化 -氯化腐蚀。
2.
To monitor the problem of boiler pipe leaking online in heating power plant, after studying the weak points of boiler pipe and determining the arrangements of monitoring sensors, we have developed an online detecting device.
为在线诊断电厂锅炉炉管泄漏故障研究了锅炉管的薄弱环节，确定监测传感器的布置方案，研制了锅炉炉管泄漏故障在线诊断装置。
5) boiler pipe
锅炉管道
1.
Two kinds of wire,core-charged with composite TiAl_3(AW1) and Cr_3C_2(AW2) powder,have been developed,to be used for building up corrosion-resistant coatings of super-critical boiler pipes,by means of supersonic arc-spraying technique.
开发两种适用于超临界锅炉管道防磨的含TiAl3(AW1)、Cr3C2(AW2)的复合粉芯丝材,采用超音速电弧喷涂技术制取耐磨涂层,结合光学显微镜、维氏硬度、X射线衍射、场发射扫描电子显微镜、能谱分析等分析方法对喷涂层的的微观组织结构和高温冲蚀磨损规律进行研究,并与20钢进行对比分析。
6) boiler tube
锅炉管道
1.
The Boiler Tubes MFL Inspection System Based on LabVIEW
基于LabVIEW的锅炉管道漏磁检测系统
2.
With a view to the shutdown of power plant owing to the crack of the boiler tube by hot corrosion and erosion, the hot corrosion behaviors of FeCrAl/WC composite coating produced by high velocity arc spraying and G20 steel used as the water tube wall material of the power station boiler were investigated.
热腐蚀、冲蚀使火电厂锅炉管道爆裂,致使发电机停机。
3.
To solve the problem of erosion-corrosion wastage at elevated temperature on boiler tube of coal thermal power station, several cored wires for Fe_3Al, Fe_3Al/WC, FeCrAl/WC and FeCrNi/WC intermetallic coatings by high victory arc spraying were developed.
结果表明,温度和攻角对Fe3Al/WC、FeCrAl/WC涂层的冲蚀行为有较大影响;在650℃棱角状石英砂磨粒冲蚀条件下,Fe3Al、Fe3Al/WC、FeCrAl/WC复合涂层的抗冲蚀磨损性能明显优于G20钢,FeCrAl/WC涂层具有最好的全攻角冲蚀磨损抗力,可以作为燃煤锅炉管道的抗高温燃气-飞灰高温冲蚀磨损的防护涂层。
补充资料：高压锅炉管生产
高压锅炉管生产
production of high pressure boiler tube
gaoya guoluguan shengehan高压锅炉管生产(produetion of high pres-sure boiler tube)制造锅炉用的管材生产。锅炉管由于长期在高温和高压条件下工作，材料将发生蠕变，塑性和韧性下降，原始组织改变，产生腐蚀等。作为锅护用的钢管应具备:(1)足够的持久强度;(2)足够的塑性变形能力;(3)最小的时效倾向和热脆性;(4)高的抗氧化、耐煤灰、耐天然气高温下腐蚀、蒸汽和应力腐蚀性能;(5)良好的组织稳定性以及良好的工艺性能。高压锅炉管的钢种有碳钥以及珠光体、铁素体和奥氏体型不锈耐热钢。为了提高火力发电机组的热效率、降低燃耗，世界各国均以发展大容量、高参数(高温、高压)火电机组(100oMW以上)为主。蒸汽压力提高到31.5~34.3MPa，过热蒸汽温度达595一650℃，向超高压临界压力发展，这样对高压锅护管提出了更高的要求。为此开发了新的钢种，以满足高参数电站锅护的需用。表1为常用的高压锅炉管的钢种;表2为高压锅炉管的新钢种。 表1常用高压锅炉管钢种及其沮度参数三表2高压锅炉管新钢种及其特性未弃… 高压锅炉管的生产工艺随钢种的不同各有差异。(1)管坯应剥皮，剥皮量通常为smm;(2)由于钢质以珠光体型铬铝钒钢为例，锅沪管的生产工艺特点是:较硬，管坯多用氧气切割或锯切;(3)由于铬铂钒钢的导热性比碳钢低，加热速度宜稍慢，加热温度为112。~1180℃，穿孔温度为1100~2160℃;(4)这类钢在1000~1100℃区间有良好的塑性和低的变形抗力，因而穿孔性能较好，变形参数可照中碳钢或合金钢(例如30CrMnsiA)选取;(5)轧后钢管要正火和回火，正火温度为950一980℃，回火温度为730一7sooC，保温时间为2~3h;“)钢管尺寸公差较严，以保证对口焊接;管子长度尽可能长，以利于减少焊口数量。 (李连诗)
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