This utility model provides a coaxial tube counter-current
oxygen generation
system heat exchange device, comprising: a first coaxial tube, inside which is a second coaxial tube, and an outer casing tube wrapped around the first coaxial tube, which is composed of two sets of semi-casing tubes. Connecting components are fitted on both sides of the semi-casing tubes, and
recovery components are fitted on both the inner and outer walls of the first coaxial tube; and an insulation box, which is placed on one side of the first coaxial tube. This utility model enhances heat exchange through counter-current heat exchange and spiral coils: the spiral coils enhance turbulent heat exchange; and the combined operation of double-layer spiral
recovery effectively improves the overall heat exchange effect compared to straight-tube heat exchangers. Assembled by two semi-casing tubes connected by quick-release components with rubber gaskets, maintenance does not require disassembly of the main pipeline, and the bolted connection structure shortens
assembly and disassembly time.