HEAT EXCHANGER AND HEAT CYCLE APPARATUS INCLUDING HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To provide a so-called helical heat exchanger capable of reducing sizes of the heat exchanger and the other devices constituting a heat cycle.SOLUTION: A heat exchanger 1 is configured so that a helical passage 7 is constituted between helical parts of a partition wall 3 provided in a cylindrical vessel 2, and a plurality of upper and lower helical tubes 4 in contact with this helical passage 7 are vertically provided to implement heat exchange between a first fluid flowing in the helical passage 7 outside of the helical tubes 4 and a second fluid flowing in the helical tubes 4, the other devices (a receiver tank 37 and a gas-liquid separator 34) constituting a heat cycle in which the heat exchanger 1 is used being accommodated in a vessel internal space G formed at a helical center.