| 摘要 |
In the case of a heat exchanger for operating a high-pressure steam boiler, in particular for dry-cleaning establishments, laundries or the like, in which a feed-water coil (11) is arranged in a tank (8), for the purpose of simple adaptation to different operating conditions or different sizes of the high-pressure steam boiler the invention envisages providing at least one additional length of pipe (20) which can be connected to the tank (8) can be closed by the cover (17), provided with connections for the condensate line (4), the feed-water line (6') and the feed-water line (9'), and is provided with an approximately planar feed-water flat spiral (12'), a baffle plate (16') and recirculation plate (18'). Various combinations can be formed by connecting means (24) between feed-water lines (6, 6') and feed-water flat spiral (12') of the length of pipe (20) with the feed-water line (9) of the flat spiral (12) of the tank (8). In particular, it is also possible to arrange a plurality of lengths of pipe (20) one after the other in the axial direction above the tank (8). <IMAGE>
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