| 摘要 |
A connection ( 10 ) between an uncooled pipe ( 11, 111 ) and a cooled double-wall pipe ( 12 ) with between the walls a hollow space ( 13 ) run through by cooling fluid let into the hollow space and taken from the hollow space through side passages ( 14, 114 ) connected to cooling fluid inlet and outlet ducts and comprising a connection zone with longitudinal cross section generally in fork form to have a single tubular end ( 16, 116 ) connected to the uncooled pipe and an opposite double-wall tubular end ( 117, 118 ) to which are connected the corresponding walls ( 19, 20 ) of the cooled double-wall pipe so that the fork bottom ( 21, 121 ) constitutes a terminal closing of the hollow space ( 13 ) and characterized in that a side passage ( 14, 114 ) is made opposite the connection and a portion thereof nearest the uncooled pipe ( 11, 111 ) is almost at the height of the fork bottom ( 21, 121 ). A double-pipe heat exchanger includes such a connection.
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