| 摘要 |
A heat exchanger (10) is disclosed having a first chamber (26), a second chamber (28) positioned inside the first chamber (26), and a third chamber (32) positioned inside the second chamber (28). The first, second, and third chambers (26, 28, 32) are in coaxial alignment. A first portion (18) of a first helical tube is positioned inside the second chamber (28) and a second portion (20) of the first helical tube is positioned inside the third chamber (32) and a second helical tube is positioned inside the first chamber (26). The heat exchanger (10) heats a cryogenic liquid to a gas phase using at least three different heat transfer fluids in one contained unit without mixing any of the fluids in the exchanger. |
