| 摘要 |
PURPOSE:To reduce a construction cost and to decrease a temperature difference at the inside of an outer cylinder, a by a method wherein each inner cylinder and a longitudinal partition are constructed with concrete or bricks, and heat insulating air is fed to each partitioned channel. CONSTITUTION:An inner cylinder 6 is built with reinforced concrete or bricks, and is reinforced with an intermediate partition 5' connected to a side of an outer cylinder 5 made of concrete. A longitudinal partition 9 partitions a space between the outer cylinder 5 made of concrete and each inner cylinder 6, it forms the periphery of each inner cylinder 6 into partition channels B for heat insulating air, and it is formed of reinforced concrete or bricks. This eliminates the use of steel plates, which results in enabling to reduce a construction cost of a chimney and to decrease temperature at the inside of the outer cylinder made of concrete. |
