合山电厂6号炉排烟温度偏高主汽温度偏低处理

Treatment for over temperature of Flue gas and Under temperature of Main Steam on No 6 Boiler in He Shan Thermal Power Plant

通过对合山电厂６ 号炉的综合治理， ６ 号炉的排烟温度大幅下降， 同时主汽温提高１０ ℃， 保证了机组的安全经济运行。改造采取的措施及采用新型的螺旋槽管空气预热器，

After combined treatment for No 6 Boiler in He shan thermal power plant,the boiler's flue gas temperature was extensively lowered and its main steam temperature was raised by10℃,thus contributing to the safe and economic operation of the plant The procedure for reformation and the new spiral tube type of air preheater used may be well observed by other thermal power plants where boilers are fired with low quality coals Key words\ Flue gas temperature \ Spiral tube type of airpreheater Main steam temperatureluted reservoir water by biological contact oxidation process with three-dimensional web-like media was carried out. The charactreistics of media were analyzed. Nearly one year's research showed that the process had a good purification effect on polluted reservoir water while its maintenance and operation were easy and economic.