【摘要】 本文将燃烧器布置在四墙中心附近，试验发现：四墙切圆燃烧方式可大大提高燃烧器区域壁面热负荷分布的均匀性。对宜宾无烟煤，四墙中心布置方式其壁面温差Tmax－Tmin平均值为四角切国方式的24．7％；对神木烟煤，其壁面温差Tmax－Tmin平均值为四角切国方式的58．7％。这对防止燃烧器区域壁面结渣和高温腐蚀有重要意义。更多还原

【Abstract】 In this thesis, the burners are arranged somewhere near the middle of furnacewalls to form the wall tangentially-flame (WTF).Hot test experiments are conducted. Re- sults show that the WTF can increase the uniform of surface temperattire in burner zone The average wall temperature Tmax - Tmin in WTF construction is 24.7% of the maximum variation of corner Tangentially-flame (CTF) when yibin antliracite coal is burned and which is 58.7% when Shenmu bituminous coals are burned. This will prevent from overheating and coking in burners zone of boiler.更多还原