| 摘要 |
The present invention relates to a refrigeration circuit in which a compressor, a condenser, a liquid receiver, an expansion valve and an evaporator are connected sequentially by a pipe. According to the refrigeration circuit of the present invention, at least two condensers are prepared to be arranged in parallel, and condense a refrigerant sequentially, and delivers the condensed refrigerant to the liquid receiver. The liquid receiver controls internal pressure by receiving the refrigerant which is condensed by the condenser one time. According as condensation rate is maximized by condensing the refrigerant several times through a number of condensers, efficiency of the refrigeration circuit is improved. Because the pressure in the liquid receiver is compensated through the condensed refrigerant, it is not necessary to increase the capacity of the liquid receiver even though a number of condensers are used. Therefore, the refrigeration circuit can operate stably and conveniently. [Reference numerals] (10) Compressor; (20) Condenser; (30) Liquid receiver; (40) Expansion valve; (50) Evaporator |
