SYMMETRIC REFRIGERANT REGULATOR FOR FLOODED MULTICHANNEL EVAPORATOR

摘要

A regulator of refrigerant for a refrigeration circuit with flooded evaporator. The refrigerant can be distributed to many separate evaporator channels. The flow of refrigerant can be changed so that the evaporator and condenser change functions. This provides the opportunity for a fast defrosting of the evaporator - or the evaporator can alternately be applied for cooling and heating. The regulator functions independently of the gravitational field and therefore it can be applied for air-conditioning systems in aeroplane and space crafts. The regulator is without movable parts. It has two throttling steps, e.g. two capillary tubes separated by a suction-gas heat exchanger. It requires neither adjustment nor maintenance and therefore it can be placed at inaccessible places or it can be embedded completely in insulation foam. The regulator keeps the evaporator flooded under all load conditions. The amount of circulating refrigerant is adapted to the load by an optional excess of refrigerant being bound in the evaporator. This happens by pulling heat energy out of the refrigerant whereby the density of the refrigerant is increased.