W型火焰锅炉冷态空气动力特性的测试研究

针对引进的配备直接缝隙式燃烧器的法国Ｓtein公司３６０ＭＷ的Ｗ型火焰锅炉进行了冷态模型的空气动力特性研究。利用热线风速仪测量炉内的流场速度，得出了不同工况下炉内Ｗ型气流的流场图，并对不同工况流场的气流速度分布规律、炉内气流的充满度、气流行程、炉膛出口处的速度偏差等进行了分析，研究了炉内空气动力场的特性和变化规律，测试了Ｗ型火焰锅炉火焰短路与炉膛出口速度偏差的性能。

Experimental Study of the Cold-state Aerodynamic Characteristics of a W-shaped Flame Boiler

A study on a cold state model of aerodynamic characteristics was conducted of a W shaped flame boiler equipped with a direct flow slit type burner. The 360 MW boiler is a product of French Stein Co. With the help of a hot wire anemometer the velocity distribution of a flow field in the furnace was measured and the flow field diagram of W shaped air flow in the furnace under various operating conditions obtained. An analysis has been performed with respect to the following: the law of air flow velocity distribution of the flow field under different operating regimes, the filling fullness of air within the furnace, the air flow path, velocity excursions at the furnace outlet, etc. Also studied are the in furnace aerodynamic field characteristics and their variation law and mechanism along with a measurement of flame short circuiting of the W shaped flame boiler and the velocity excursions at the furnace outlet.