| 摘要 |
PROBLEM TO BE SOLVED: To take a vibration isolation countermeasure simply in a multi-tubular heat exchanger in an existing plant, or the like, without causing lowering in the production capacity. SOLUTION: In a multi-tubular heat exchanger comprising a group of a plurality of heat exchanger tubes 14 extending across a pair of tube plates 13, a vibration isolation spacer S is set in a gapδof adjacent heat exchanger tubes 21. The heat exchanger tube group G has an array L of a plurality of heat exchanger tubes 21 in one direction. The spacer S is formed of a U-shaped piece, having a pair of opposite straight parts 31a and a bend 31b which interconnect the opposite end parts of these straight parts 31a. Both straight parts 31a are clamped in two gapsδ, between one array L of heat exchanger tubes and two adjacent arrays L of heat exchanger tubes. |
