| 摘要 |
In a heat exchanger of at least one element (1) of an external pipe (2) equipped with a tempering jacket (3) and exhibiting a central tempering pipe (6), between which a product space (7) equipped with connections (8, 9) is provided, the inlet connection (14) of the tempering pipe (6) is made as a central pipe (17) extending into the vicinity of the closed end (16) of the tempering pipe (6), whereby the heat exchange is improved. <IMAGE>
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