| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing structure for an exhaust-air collection cylinder having a structure capable of protecting heads of a plurality of machine screws from strong acid drain, and the like.SOLUTION: A fixing structure 50 for an exhaust-air collection cylinder 5 for fixing a latent-heat-collection heat exchanger 13 and the exhaust-heat collection cylinder 5 that discharges exhaust air from which latent heat is collected to an outside includes a base plate 25 fixing the exhaust-air collection cylinder 5 on an upper surface of an upper heat exchange can body 14 accommodating therein the latent-heat-collection heat exchanger 13. An opening portion 51 continuous to an exhaust port 23 of the latent-heat-collection heat exchanger 13 is formed in the base plate 25. An outer peripheral edge of the opening portion 51 is fixed to the upper heat exchanger can body 14 by a plurality of machine screws 55 with a seal member 53 put between the outer peripheral edge and the upper heat exchanger can body 14. A seal packing 52 having a plurality of holes 52a accommodating therein heads 55a of the plurality of machine screws 55 is bonded to the base plate 25. A bottom plate 39 of the exhaust-air collection cylinder 5 is mounted on the base plate 25 with the seal packing 52 put between the base plate 25 and the bottom plate 39. The base plate 25 is fixedly fastened to a main body case 31 of the exhaust-air collection cylinder 5 via the seal packing 52. |
