CLOSING STRUCTURE FOR MULTITUBULAR HEAT EXCHANGER, AND CLOSING METHOD FOR MULTITUBULAR HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To provide a closing structure for a multitubular heat exchanger, which closes a tube plate hole without use of fire and which is excellent in general-purpose property, and a closing method for the multitubular heat exchanger.;SOLUTION: A closing structure for a multitubular heat exchanger includes an inner plate 61, a bolt 62, a presser plate 64 large enough to cover a tube plate hole 2a1, and a nut 66. A shank of the bolt 62 is inserted through the inner plate 61, and a head of the bolt 62 is joined to the inner plate 61. A tube plate 2a including the tube plate hole 2a1 is arranged between the inner plate 61 and the presser plate 64. The nut 66 is screwed to the shank of the bolt 62 protruding from the presser plate 64. Thus, the inner plate 61, the tube plate 2a and the presser plate 64 are fastened.;COPYRIGHT: (C)2016,JPO&INPIT