| 摘要 |
A heat exchanger 10 for cooling a gas has a first heat exchanging chamber 11 and a second heat: exchanging chamber 12. An array of heat pipes 25 are arranged to extend from within the first heat exchanging chamber to within the second heat exchanging chamber, and provide heat transfer between chambers. The first heat exchanging chamber has an inlet 15 for receiving a coolant into the chamber and an outlet 16 through which the coolant can exit the first chamber, and the coolant is arranged to pass over at least a portion of the heat pipes in the chamber. The second heat exchanging chamber has an inlet 23 for receiving the gas at a first temperature into the chamber, and an outlet ( 17 fig 2) through which the gas can exit the second chamber at a second temperature after cooling by passing over the heat pipe array. The gas is arranged to pass along the second chamber between the inlet and the outlet, along a path comprising a substantially constant cross-sectional area to minimise the pressure drop between the inlet and the outlet. |
