| 摘要 |
The invention relates to a method for operating a device (1) for providing a liquid additive (2), having a delivery path (3) which runs from a tank (4) to an additive dispensing device (5), wherein at least one section (6) of the delivery path (3) forms a jacket (7). The method has at least the following steps: In a step a), liquid additive (2) is delivered from the tank (4) to the additive dispensing device (5) along the delivery path (3) in a delivery direction (8). In step b), the delivery is stopped. In step c), at least one section (6) of the delivery path (3) is at least partially evacuated, and in step d), a thermal insulator (9) is formed in the jacket (7) by means of the evacuated delivery path (3). |
