| 摘要 |
PURPOSE:To eliminate the necessity of cutting heat transmitting tubes and shorten the term of works by a method wherein a casing board, having a proper width, is attached, the firebrick and insulating bricks are attached between the casing board and the heat transmitting tubes and the space between the casing board and the insulating bricks is filled with insulating cement. CONSTITUTION:The proper width of the upper part of the casing board 8, constituting the wall body 7 of the existing boiler, the insulating bricks 10 and the firebricks 9 are removed and a piece for preventing the dropping of ceiling bricks is attached at the same time. In the same manner, the proper width thereof are removed sequentially to remove the wall body 7 of the boiler. The casing board 8, having the proper width, is attached, the firebricks 9 and the insulating bricks 10 are laid between the casing board 8 and the heat transmitting tubes 3, and wooden pillars 12 are inserted between the casing board 8 and the insulating bricks 10 with a proper space to prevent the deviation of both bricks 9, 10. Next, the space between the casing board 8 and the insulating bricks 10 is filled with the insulating cement 11 and the proper width of them are laid in the same manner. |
