Pipeline system comprising an emptying container for receiving a liquid flowing through a pipeline system

The invention relates to a pipeline system comprising at least one pipeline loop (9) which is connected to a collector (7) at one end and to a distributor (5) at a second end. The collector (7) and the distributor (5) are arranged one above the other. When the collector (7) lies above the distributor, pressurized gas can be supplied to the collector, and the distributor (5) is connected to an emptying container (21); and when the distributor (5) lies above the collector, pressurized gas can be supplied to the distributor (5), and the collector (7) is connected to an emptying container (21), said emptying container (21) lying lower than the collector (7) and the distributor (5). The invention further relates to an emptying container (21) for receiving a liquid flowing through a pipeline system (3). The emptying container (21) is connected to the pipeline system (3) via an immersion pipe (33) protruding into the emptying container (21). The invention is characterized in that a siphon (41) is provided in the immersion pipe (33) between the pipeline system (3) and the emptying container (21), and the immersion pipe (33) can be heated, said siphon (41) being closed by a solidified material (43) during the operation of the pipeline system (3).