FURNACE AND BOILER INCLUDING THE SAME

To provide a furnace and a boiler including the furnace, which avoid a combined thickness reduction, enable a reduction in initial cost and maintenance cost of the boiler and secure ash removal performance in a high potential region while shortening a periodic inspection schedule.SOLUTION: A furnace...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MORI KOICHIRO, YAMAGUCHI RYOSUKE, MURAKAMI KAZUO, SHIMOGOORI MIKI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a furnace and a boiler including the furnace, which avoid a combined thickness reduction, enable a reduction in initial cost and maintenance cost of the boiler and secure ash removal performance in a high potential region while shortening a periodic inspection schedule.SOLUTION: A furnace 11 enabling two-stage combustion of fuel includes: a bottom part; a combustion cylinder; a burner 21 provided on the side wall of the combustion cylinder; an after-air port 39 installed at a vertically upper side of an installation position of the burner on the side wall of the combustion cylinder; water flow ash removal devices 151, 152 injecting a water flow to a first height region A3 from the burner to the lower side of the installation position of the after-air port on the side wall of the combustion cylinder to remove ash; and wall blowers 171, 172 removing ash adhered to an upper side of the after-air port.SELECTED DRAWING: Figure 3 【課題】複合減肉を避け、ボイラの初期コスト、メンテナンス費用を削減し、定検スケジュールを短縮しつつ、高ポテンシャル領域の灰除去性能も担保する火炉及びそれを備えたボイラを提供する。【解決手段】燃料を二段燃焼させる火炉11は、底部及び燃焼筒と、燃焼筒の側壁に設けられたバーナ21と、燃焼筒の側壁においてバーナの設置位置よりも鉛直方向の上側に設置されたアフターエアポート39と、燃焼筒の側壁におけるバーナからアフターエアポートの設置位置よりも下側までの第1高さ領域A3に水流を噴射して灰を除去する水流灰除去装置151、152と、アフターエアポートよりも上側に付着した灰を除去するウォールブロワ171、172とを備える。【選択図】図3