Davis Wright Tremaine LLP
Comb tooth type water-cooled column and furnace having the same
A water-cooled column (4) used in a circulating fluidized bed boiler furnace is disclosed, wherein the water-cooled column is formed by connecting membrane water-cooled walls (41). The water-cooled column (4) includes a lower section (A), an upper section and a transition section. The lower section (A) is a single column and is provided with inner secondary air ports (400) on a side wall thereof. The upper section includes a plurality of sub-columns (B, C). The membrane water-cooled walls at the lower section (A) extend to the upper section through the transition section. Each of the sub-columns (B, C) is formed by connecting extension portions extending upward from respective membrane water-cooled walls (41) in the membrane water-cooled walls (41), which are connected to form the lower section (A), and the plurality of sub-columns (B, C) are separated from each other.
Institute of Engineering Thermophysics, Chinese Academy of Sciences
F F F F F F
F22B F22B F23C F23C F23L F22B
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Guoliang Xiaofang Qinggang Dongyu Ming
Song Wang Lv Wang Gao