| 摘要 |
A screening wall (11, 13; 12, 16) on leakage of ammonia, screens the open connection sideways. The screening wall involves screening devices rolled up adjacent to installation (17, 18), which on leakage are unrolled and drawn downwards from the rolled-up state (13) on a fixture unit (15) to the rolled-down state (11). The screening wall can also comprise one or more folded-together screening devices (16) which on leakage are folded outwards and drawn downwards from a folded-up state in a storage space (14) to a folded-outwards and downwardly drawn state (12). Adjacent to the installation are placed one or more leakage monitoring units, which on leakage emit a signal to an alarm device and/or to a manoeuvring component for the screening devices for their lowering by being rolled downwards or folded outwards. |
