| 摘要 |
<p>A multi-storey central hot-water heating system controlled on each storey includes several hot-water radiating systems (90) distributed on different storeys, each of which is connected in series from top to bottom in turn. On each storey, a branch pipe (30) is provided between a water inlet pipe (50) and a water outlet pipe (60) of said hot-water radiating system (90). A first controllable valve (40) is disposed in each of said branch pipes (30). Alternately, each of said hot-water radiating systems (90) is connected in parallel from top to bottom in turn. A connecting pipe (80) is provided between a water inlet pipe (50) of said hot-water radiating system (90) on each storey and a water inlet pipe (70) of said hot-water radiating system (90) on the next lower storey. The first controllable valve (40) is disposed in each of said connecting pipes (80). A control unit (10) is also disposed on each storey in order to control the hot-water flow through the first controllable valve (40). The invention can shut or adjust the heating load of a separate heating storey, thus achieving balanced heating and providing a fair and reasonable fee basis.</p> |
