Connecting the second exhaust-heat boiler to the operating first one under the conditions of flow circuits of combined-cycle plants with two gas-turbine units and one steam turbine

Problems arising with connecting the second exhaust-heat boiler to the first exhaust-heat boiler under load in the case of flow circuits of combined-cycle plants of type PGU-450 are considered. Similar problems exist for two-boiler single-turbine units of type PGU-325 and for two-boiler single-turbine units of traditional steampower plants with an output of 200–300 MW upon connection of the second furnace of a two-furnace boiler to the operating first furnace. Analysis of the temperature-induced stressed state and of the cyclic strength of thick-walled elements of the steam-water conduit of PGU-450 and of two-furnace boilers of two-boiler single-turbine units with an output of 200–300 MW (the check valve, the inlet header of the water economizer) is used for determining the steam temperature differences in the high-pressure conduits to the steam turbine and the order of connection of the second exhaust-heat boiler to the operating fist one. Modes of enabling a two-boiler single-turbine unit of a combined-cycle plant, which are most “rigid” from the standpoint of thermal strength, are determined. __________ Translated from élektricheskie Stantsii, No. 2, February 2006, pp. 11–17.     

锅炉炉膛红外成像温度实时检测系统研究

说明电厂锅炉炉膛温度及结焦直接影响锅炉正常运行及安全；给出了基于多探测器的锅炉反应温度红外成像实时测温系统的系统结构、系统原理、系统标定和温度测定方法。     

Increasing the corrosion resistance of equipment due to the use of film-forming amines

Results of a study of tube specimens cut from hot-water boilers show that film-forming octadecyl amine (ODA) used in the process of preservation removes deposition from the surface of the metal. An ODA film is preserved on the surface after repeated washing of the latter with hot water. The concentration of chlorides at the surface of the metal after treatment with ODA is lower than before the treatment. __________ Translated from élektricheskie Stantsii, No. 11, November 2005, pp. 15–18.     

Use of oxygen for the cleaning, passivation, and preservation of power-generating equipment at the Kharanorskaya SAPP

Studies conducted on two power-generating units at the Kharanorskaya SAPP relative to the steam-water-oxygen passivation, preservation, and partial cleaning of all boiler-heating surfaces, including the surfaces of the reheater, and passivation of the surfaces of the high-pressure heaters on the steam and water sides by the steam-oxygen method, as well as partial passivation, preservation, and cleaning of turbine blading are presented. __________ Translated from élektricheskie Stantsii, No. 6, pp. 56–64, May, 2006.     

超临界直流锅炉冷态空气动力场研究

针对四角切圆锅炉水平烟道上普遍存在烟温偏差的情况,在河北国华定洲发电厂新建锅炉开展了冷态空气动力场试验,重点研究炉膛出口烟气流速分布情况。试验证明,通过调整分离燃尽风（SOFA）喷嘴的角度,能有效改变炉膛出口气流的分布,保证左、右烟气流速均匀,可满足锅炉正常运行的要求。     

工业锅炉煤改气客户细分模型及其应用——基于层次分析和熵权修正的模糊综合评价理论

煤改气是加快调整工业锅炉能源结构、改善大气环境质量的重要措施之一。燃气运营商欲开拓工业锅炉煤改气市场，应正确辨别终端市场客户的类别。从行业特性、企业特性、锅炉状况和客户开发潜力4个方面构建工业锅炉煤改气客户细分评价指标体系，用AHP－修正熵组合赋权方法确定评价指标权重，建立工业锅炉煤改气客户细分模型并开展应用。评价结果兼顾客观属性与主观偏好，符合客观实际，可为燃气运营商开展差异化管理，采取多元化营销模式提供决策依据。     

火电厂锅炉房真空负压吸尘系统设计

文章介绍了火电厂锅炉房真空负压系统压力损失的计算及负压吸尘装置的选择。     

锅炉水冷壁高温腐蚀的原因及对策

胜利发电厂^#1锅炉在2008年7月小修期间,发现锅炉水冷壁管存在大面积高温腐蚀现象,经检查共有129根水冷壁管减薄超标,小修期间予以更换。通过对该厂^#1锅炉水冷壁管高温腐蚀现象的分析,找出了产生高温腐蚀的原因,制订了防范措施,消除了锅炉安全运行的隐患。     

Results of long-term operation of cascade tubular air heaters at the Berezovskaya GRÉS

Experience of operation of tubular air heaters (TAH) on twelve boilers of type PK-38 for 150-MW power units of the Berezovskaya GRÉS (state regional power plant) in Belarus is presented. Coal-fired, gas-fired, and oil-fired operation modes with updating tubular air heaters in a cascade layout are described. Advantages of the cascade layout and conditions for reliable, efficient, and long-term service of the TAH are shown.Translated from Élektricheskie Stantsii, No. 9, September 2004, pp. 20–23.     

低氮燃烧与SCR脱硝组合技术在褐煤锅炉脱硝改造中的应用

介绍了燃煤电厂应用低氮燃烧技术（LNB）与烟气脱硝技术（SCR）对褐煤电厂锅炉进行改造后,在不降低锅炉效率的情况下,实现了NOx浓度达标排放,取得了良好的经济、环保效果。