| 摘要 |
<p>The heat computing system measures the consumption based on the hot water circulation. The quantity of heat supplied in a given period is measured taking into consideration the hot water flow and its cooling. The time integral is formed by a mechanical, electromechanical or electronic counter. There is a flow resistance meter in the outward and in the return pipe. The flow resistance meter is formed by a vane (15) with a flat resistance surface. The vane is controlled by adjusting the angle of the resistance surface relative to the direction of flow (14) using a temperature resistance element such as a bimetal strip (18).</p> |
