| 摘要 |
The external barrier (6) located in the body (1) of the exchanger is formed by a concentric part of at least a single-thread developable helicoid with the required elevation, whereas this surface can include a helical opening. Inside the body (1) of the exchanger there are at least two concentric helical baffles, the outer baffle (6) and inner baffle (9). Inside the hypothetical cylinder (7) there is also a central tube (8) on which the inner baffle (9), formed of fins, is wound. Finned tubing (10) also runs through the outer baffles (6) and inner baffles (9).<IMAGE>
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