| 摘要 |
In the case of a pipeline system with two line trains and coupling devices at the ends for the connection of connecting lines leading further, for space-saving reasons, there is arranged inside a cylindrical outer pipe (1) a second pipe (2), the outside diameter of which is smaller than the inside diameter of the outer pipe (1) in accordance with the throughflow cross-section required. Located at two ends of the double pipe (1, 2) are coupling devices (3), each with a coupling point (4) for connecting the double pipe (1, 2) and each with two coupling points (5, 6) for connecting the single pipes (7, 8 and 10, 11) leading further, the inner pipe (2) being connected to one coupling point (5) and the outer pipe (1) to the other coupling point (6) by means of throughflow channels (15, 16, 17) arranged within the coupling device (3). The inner second pipe (2) is arranged preferably loosely in the outer pipe (1) and projects at both ends (18) by a length which makes it possible to lead the pipe end through an inner-pipe channel (16) sealed off relative to the outer-pipe channel (15) into the initial region of the single pipe (8) leading further. <IMAGE> |
