W-shaped flame boiler, with its own high-temperature and long-flame characteristics, is suitable for burning low volatile anthracite fuel.

型火焰锅炉具有炉膛温度高、火焰行程长等特点，适于燃烧无烟煤等低挥发分燃料。

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The features of burners, air distribution mode, and structure for various W-shaped flame boilers in service at present in China have been presented.

介绍我国现役各类W火焰锅炉燃烧器、配风方式及结构特点。

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This problem had occurred under corner tangential firing and wall opposed firing, and it became even more serious under W-shaped flame double-arch firing.

四角切向燃烧和墙式对冲燃烧方式都有此问题，而W火焰双拱燃烧锅炉则更严重，值得关注。

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