GAS COOLING DEVICE FOR GASIFICATION FURNACE AND GASIFICATION FURNACE HAVING THE SAME

• Main Authors: TAKASHIMA RYUHEI, YAMASHITA TOSHIYUKI, KOYAMA TOMONORI, TAKAHASHI YUTA
• Format: Patent
• Language: English; Japanese
• Published: 13.09.2018
• Subjects: CARBURETTING AIR OR OTHER GASES; CHEMISTRY; FUELS; LUBRICANTS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; TECHNICAL GASES CONTAINING CARBON MONOXIDE

PROBLEM TO BE SOLVED: To provide a gas cooling device for the gasification furnace that can optimize a diameter of a pressure vessel by bringing a width of an annulus part close to a constant without decreasing performance of a heat exchanger for cooling product gas and can reduce a load on an insertion mechanism part of a soot removing device.SOLUTION: A gas cooling device 5 comprises a heat exchanger 10 that is installed in a flue 7 and cools the product gas by heat exchange. The heat exchanger 10 has a plurality of heat transfer tube panels 12 along an arbitrary heat exchanger reference line CA having a side 12a of the plurality of heat transfer tube panels in a longitudinal direction inside the flue 7, and the plurality of heat transfer tube panels are radially arranged around the heat exchanger reference line CA, is formed of a heat transfer tube, and is formed in a planar shape. Further, the heat exchanger comprises a tubular soot removing device 15 which has a tip part 17 inserted until the tip part reaches a position of the heat exchanger reference line CA, and can remove a soot adhered to the heat exchanger 10 by injecting a soot removing fluid SR from the tip portion 17 while rotating around the axis.SELECTED DRAWING: Figure 3 【課題】生成ガスを冷却する熱交換器の性能を低下させることなくアニュラス部の幅を一定に近付けて圧力容器の直径を最適化するとともに、除煤装置の挿入機構部の負担を軽減させる。【解決手段】ガス冷却装置５は、煙道７内に設置され、生成ガスを熱交換させて冷却する熱交換器１０を備えており、この熱交換器１０は、伝熱管からなる平板状に形成された複数の伝熱管パネル１２が、それら各々の一辺１２ａを煙道７内部の長手軸方向に沿う任意の熱交換器基準線ＣＡに沿わせ、且つ熱交換器基準線ＣＡを中心に放射状に配置されたものである。また、先端部１７が熱交換器基準線ＣＡの位置に達するまで挿入され、軸回りに回転しながらその先端部１７から除煤流体ＳＲを噴射することによって熱交換器１０に付着した煤を除去する管状の除煤装置１５を備えている。【選択図】図３