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近年来使用空冷冷凝器的氟利昂机组用得愈来愈广泛了。对于冷量较大的分体式机组空冷冷凝器和贮液器一般都放在室外。这种机组在冷季运行时比较复杂,因为在机器起动时冷凝压力较低进入蒸发器的液体冷媒量少,以致蒸发器内液体被压缩机很快抽空造成机器摩损或蒸发压力过低而停机。《丹福斯》工厂提出一种能维持一定冷凝压力的系统。系统如图所示在压缩机至冷凝器的管路上裝压力凋节器A其作用是当压缩机排气压力低于额
In recent years, the use of air-cooled condenser freon unit is used more and more widely. For the cooling capacity of the split unit air-cooled condenser and liquid receiver are generally placed outdoors. This type of unit is more complicated to operate in the cold season because the condensing pressure at start-up is lower and the amount of liquid refrigerant entering the evaporator is less, so that the liquid in the evaporator is quickly exhausted by the compressor causing the machine to wear out or the evaporating pressure is too low Shut down. The Danfoss plant proposes a system that maintains some condensation pressure. System as shown in the compressor to the condenser pipe pressure regulator installed A function is that when the compressor discharge pressure is lower than the amount