| 摘要 |
<p>The system comprises at least one evaporator (E) and at least two condensers (C). These each consist of bundles of coils of elongate form, enclosed in tubes (2, 10). In the tube bundle of the evaporator (E), at least one fluid circulates, while water which receives heat from at least two different fluids circulates in the condensers (C). A compressor (K) receives the said fluids coming from the evaporator (E) before transferring them, after compression has taken place, into the two condensers (C). The fluids consist of dichlorodifluoromethane (Freon 12) and chlorodifluoromethane (Freon 22) and circulate in a direction opposite to that of the water. In the evaporator, the fluids flow mixed with one another, while they flow separately in the condensers (10', 10''), i.e. the first (Freon 22) flows in the upper condenser (10') and the second (Freon 12) flows in the lower condenser (10''). With the system, a useful temperature of up to 75 DEG C is obtained, with the advantage of doing away with a boiler of the conventional type in a heating installation. <IMAGE></p> |
