公开(公告)号：EP1808500A1

公开(公告)日：2007-07-18

申请号：EP06000643.4

申请日：2006-01-12

申请人： Linde Aktiengesellschaft

发明人： Fälldin, Anders ,  Öhrling, Johann

IPC分类号： C21D9/573 ,  B21B45/02 ,  C21D1/767 ,  C21D1/613

CPC分类号： B21B45/0209 ,  C21D1/613 ,  C21D1/673 ,  C21D1/767 ,  C21D9/573 ,  C21D9/5732 ,  C21D11/005 ,  F27D2009/0005 ,  Y02P10/122

摘要： The invention relates to a heat exchanger for cooling elongated metal products, such as threads or strips. The apparatus comprises a longitudinal passageway (2) with an upstream end and with a downstream end, a backflow line (8) connecting said upstream end and said downstream end, whereby forming a closed loop pipeline (2,8), a product inlet (3) and a product outlet (4) into said closed loop pipeline (2,8), and means (7) for introducing a cold medium into said closed loop pipeline (2,8).
In a preferred embodiment, the cold medium is cryogenic gas, and the means for introducing it into the closed loop pipeline is an expansion nozzle, such as a laval nozzle.

摘要翻译： 本发明涉及用于冷却细长金属制品如螺纹或条带的热交换器。 该设备包括具有上游端和下游端的纵向通道（2），连接所述上游端和所述下游端的回流线（8），从而形成闭环管道（2,8），产品入口 3）和产品出口（4）进入所述闭环管道（2,8），以及用于将冷介质引入所述闭环管道（2,8）中的装置（7）。 在优选的实施方案中，冷介质是低温气体，用于将其引入闭环管道的装置是膨胀喷嘴，例如拉伐喷嘴。