| 摘要 |
<p>The system regulates the heat supply to a steam-heated consumer unit, the steam delivered from a main being controlled according to heat consumption, while the condensate occurring is collected and returned to a collector main. Steam is delivered in impulses whose duration and/or that of the intervals between them are dependent on the heat consumption. The consumer unit is operated as part of a closed steam-and-condensate circuit. During all impulses the unit can be subjected to a constant and predetermined steam pressure, the latter being used to return the condensate to the collector main.</p> |
