| 摘要 |
Heat exchanger intended to be flown through by two media and for heat exchange via heat exchanging surfaces in such a way, that the media do not directly contact each other, where the heating surfaces are located rotation symmetrical in relation to, for example, an axis, and the main flow direction of the media is in parallel with said axis. The object is to reduce the overall height and material consumption while maintaining the size of the heat exchanging surfaces. When the heat exchanger is used as an evaporator, the overall height additionally is reduced in that the expansion chamber, which normally is located above the heat exchanger unit, can be positioned centrally within the evaporator (heat exchanger). The said improvement is achieved in that the heating surfaces D are located in an annular area about said axis, so that a central hollow space without heat exchanging surfaces is formed about the central axis. |
