| 摘要 |
A regulating circuit and a method for regulating flow temperature of a liquid in a heating circuit (1) in a domestic central heating system, which circuit comprises a heat source (2,20) and a heat sink (3,30), wherein an outflow liquid from the heat source is supplied as an inflow liquid to the heat sink and vice versa, comprises the following steps:
Mixing an outflow liquid from a first (2,30) of the heat source and the heat sink with an outflow liquid from a second (3,20) of the heat source and the heat sink in a thermostatic threeway valve (4), for regulating an inflow temperature of the inflow liquid to said first of the heat source and the heat sink.
Measuring an outflow temperature, or a temperature related thereto, of the outflow liquid from said first of the heat source and the heat sink.
Comparing the measured outflow temperature with a desired temperature.
If there is a difference between the measured temperature and the desired temperature regulating the outflow temperature of the outflow liquid from said first of the heat source and the heat sink by controlling rotational speed of a pump (5), arranged downstreams the valve (4).
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