更正

在锅炉给水中，溶解多种气体，其中对热力设备危害最大的是溶解氧。在热力供水系统中，由于水气温度都较高，使得氧腐蚀的速度进一步加快。因此，除去锅炉给水中的溶解氧，是保护热力设备经济运行必不可少的手段。     

浅析高职热力设备检修实训课改革

分析热力设备检修实训课程的教学现状,探讨教学改革思路并提出加强课程内涵建设应完善实训基地,加强"双师型"教师队伍等措施     

水的硬度分析

职业教育中,热能专业的就业方向是火力发电厂,企事业单位的动力车间,从事各类锅炉的运行工作。水质不良（特别是给水硬度不合格）会导致热力设备结垢,过热器和汽轮机积盐,最终引起锅炉水冷壁,过热器爆管;汽轮机推力轴承负荷增大,隔板弯曲,造成事故停机,造成较大的经济损失。     

设备保温隔热方法

为达到保温隔热的目的,要从使用材料、保温结构、厚度等方面入手,提高保温隔热效果.     

High-Temperature Corrosion of Protective Coatings for Boiler Tubes in Thermal Power Plants

High-temperature corrosion is a serious problem for the water-wall tubes of boilers used in thermal power plants. Oxidation, sulfidation and molten salt corrosion are main corrosion ways.Thereinto, the most severe corrosion occurs in molten salt corrosion environment. Materials rich in oxides formers, such as chromium and aluminum, are needed to resist corrosion in high-temperature and corrosive environment, but processability of such bulk alloys is very limited. High velocity electric arc spraying (HVAS) technology is adopted to produce coatings with high corrosion resistance. By comparison, NiCr (Ni-45Cr-4Ti) is recommended as a promising alloy coating for the water-wall tubes, which can even resist molten salt corrosion attack. In the study of corrosion mechanism, the modern material analysis methods, such as scanning electron microscopy ( SEM ), X-ray diffractometry (XRD) and energy dispersive spectrometry (EDS), are used. It is found that the corrosion resistances of NiCr and FeCrAl coatings are much better than that of 20g steel, that the NiCr coatings have the best anti-corrosion properties, and that the NiCr coatings have slightly lower pores than FeCrAI coatings. It is testified that corrosion resistance of coatings is mainly determined by chromium content, and the microstructure of a coating is as important as the chemical composition of the material. In addition, the fracture mechanisms of coatings in the cycle of heating and cooling are put forward. The difference of the thermal physical properties between coatings and base metals results in the thermal stress inside the coatings. Consequently, the coatings spall from the base metal.     

发电厂如何获得纯净的蒸汽

发电厂水汽循环系统中蒸汽携带的杂质会进入蒸汽而对过热器、汽轮机等造成严重危害，本文阐明了发电厂获得纯净蒸汽的方法。