| 摘要 |
<p>A collective heat supply system with continuous heat supply, provided with a well-insulated return distribution system 4, 6, will suffer increasing heatloss percentages, the lower the building density is. The present invention provides such system for low building density with considerably lower heatlosses, by providing each consumer with a well-insulated heat accumulator tank 23, which only is periodically charged. The individual service pipes 20, 21 between the consumer 10-15 and distribution system 4, 6 can thus be uninsulated, directly laid into the ground, cheap, since they only transport periodically heat. From calculations it follows that especially for consumers with also heated tapwater service 26, 27, 28 a comparatively high supply temperature and low return temperature is preferable, reducing charging time, pipe diameter, accumulator volume and thus heatlosses (total of charging and idle) and cost. Heat consumption measuring 29, which still is a problem, will be simplified thanks to the high flow and temperature difference between supply and return.</p> |
