AIR-COOLED HEAT EXCHANGER SYSTEM

An air-cooled heat exchange device is constructed so that stress occurring in a pipe during thermal expansion is relaxed using a simple configuration, the pipe connecting an upstream manifold and a heat exchanger. An air-cooled heat exchange device (1) has: an upstream manifold (6) which has upstream branch pipes (18) provided downstream thereof; heat exchangers (4) which have inlet headers (31) connected to the upstream branch pipes and placed on a base (3) in a displaceable manner, and which also have heat transfer pipes (34) connected to the inlet headers; and connection members (41) which each connect adjacent inlet headers. The coefficients of thermal expansion of the upstream manifold, the inlet headers, and the connection members are set to be substantially the same. The inlet headers and the connection members expand thermally when the upstream manifold expands thermally, and the inlet headers move relative to the base by an amount corresponding to the amount of thermal expansion of the upstream manifold.