| 摘要 |
<p>The forced circulation heating system has a heat source with thermostat valve controlled short circuiting connection. The heating circuit has a bypass, water below the condensation corrosion temperature being made available to the heating circuit. The pumps (7, 13) are connected into the circuits (1, 11) so that they deliver flow in opposite directions relative to the bypass line (18) in the circuits. The ratings of the pumps are matched to the associated circuits so that the throughput over the heat source and the heat using load is approximately equal.</p> |
