| 摘要 |
<p>The floor of the shed includes a dung grid (2) under which the ventilating space is situated. This connects on one side to a fresh air supply (4) and has a discharge duct at the other side. A top-mounted ventilator (6) is included. Above the ventilator is a flap valve (7) which directs air flow to the atmosphere via a pipe (8). Alternatively, the air-flow is directed through a duct (9) into a heat-reclaiming unit (10). This has a tube nest with removable tube plates for easy cleaning.</p> |
