针对辽源发电厂 ７号炉（１３０ ｔ／ｈ）存在低负荷稳燃效果不好，限制锅炉调峰幅度的问题，对燃烧系统进行了低负荷无油稳燃技术改造；将燃烧器改为水平浓淡燃烧器；减小切圆直径；完善风系统的调整手段。改造实施后，改善了炉膛燃烧工况，使锅炉低负荷调峰性能得到改善，最低稳燃调峰幅度由７０％降到５３％。 In view of the poor steady-state combustion effect at low load of No.7 furnace (130 t / h) in Liaoyuan Power Plant and the limitation of the amplitude of peak shaving of the boiler, the low-load, oil-free and steady combustion technology was reformed on the combustion system; the burner was changed to a level Burn the burner; reduce tangent diameter; improve the wind system of adjustment. After the implementation of the reform, the furnace combustion conditions were improved, the peak load shedding performance of the boiler was improved, and the minimum stable combustion peak shaving amplitude was reduced from 70% to 53%.