DUST-REMOVING DEVICE FOR HEAT EXCHANGER TUBE

To provide a dust-removing device for heat exchanger tubes, capable of effectively removing a dust adhered to the heat exchanger tubes.SOLUTION: A heat exchanger tubes include a first heat exchanger tube group 5 and a second heat exchanger tube group 6. The first heat exchanger tube group 5 has: straight pipe parts 5a substantially parallel to a ground; and bent parts 5b, 5c, wherein a feed end part 5d and a discharge end part 5e penetrate through a first wall 4-1 of a casing 4 in which the flow of an exhaust gas is substantially vertical to the ground. The second heat exchanger tube group 6 has: straight pipe parts 6a substantially parallel to a ground; and bent parts 6b, 6c, wherein a feed end part 6d and a discharge end part 6e penetrate through a second wall 4-2 of the casing 4, the second wall being faced with the first wall 4-1. The first heat exchanger tube group 5 and the second heat exchanger tube group 6 are vibrated by vibration-applying means.SELECTED DRAWING: Figure 3 【課題】伝熱管に付着するダストを効果的に除去することができる伝熱管のダスト除去装置を提供する。【解決手段】伝熱管を第１伝熱管群５と第２伝熱管群６とに分ける。第１伝熱管群５は、地面と実質的に平行な直管部５ａと、ベンド部５ｂ，５ｃと、を有し、排ガスの流れが地面と実質的に垂直方向であるケーシング４の第１壁４−１を送入端部５ｄと送出端部５ｅが貫通するように構成される。第２伝熱管群６は、地面と実質的に平行な直管部６ａと、ベンド部６ｂ，６ｃと、を有し、ケーシング４の第１壁４−１に対向する第２壁４−２を送入端部６ｄと送出端部６ｅが貫通するように構成される。第１伝熱管群５と第２伝熱管群６を振動付与手段によって振動させる。【選択図】図３