| 摘要 |
A railway car (10) heated by steam through a heat exchanger (28) located at the bottom (18) of a tank (14). The heat exchanger (28) comprises pipes (53, 58, 59, 60, 61, 67, 68) running lengthwise of the car (10). Bypasses (72, 74) are provided to discharge condensate into a cavity of a torus (26) sleeved about a discharge valve (114) in effective heat transfer thereto. |
