| 摘要 |
There is disclosed a method for substantially retaining the temperature of a liquid in a liquid distribution system having at least one liquid conduit (7, 8) extending from a liquid source (1, 2, 3) to a liquid tap (9, 10). When a tapping operation is finished, the liquid is evacuated from the liquid conduit, and a gas is brought into the liquid conduit in order to replace the liquid therein and cause the liquid to flow backwards to the liquid source. When liquid is to be tapped from the liquid tap, the gas is evacuated from the liquid conduit. |
