| 摘要 |
<p>In a heat exchanger such as a steam generator which equips a nuclear power station, the secondary fluid is injected into the top of an annular space (30) formed between an external envelope (10) and a bank envelope (26) having a common vertical axis. This injection is carried out by a feed pipeline (44) which opens into an overflow (62). This overflow has a horizontal upper edge (64), from which the secondary fluid overflows onto a deflector wall (54). The secondary fluid flows along this wall towards the bottom of the annular space (30). A device (60) for trapping migrating bodies can also be positioned in the overflow (62) or between the overflow and the deflector wall (54). <IMAGE></p> |
