公开(公告)号：KR100795568B1

公开(公告)日：2008-01-21

申请号：KR1020060110762

申请日：2006-11-10

Applicant: 고려대학교 산학협력단

Inventor： 김용찬 ,  강훈 ,  박차식

IPC: F25B1/00 ,  F25B40/00 ,  F25B41/06 ,  F25B49/02

CPC classification number: F25B2400/051 ,  Y02B30/72

Abstract: An apparatus for exchanging heat by using an electronic expansion valve, an outdoor unit of an air conditioner by using an electronic expansion valve, and a multi air conditioner system are provided to improve overcooling degree performance to prevent generation of flash gas at an inlet of an expansion valve to prevent deterioration of performance and reliability of a multi air conditioner system, and lower a temperature of a sucked refrigerant when an air conditioner is operated under an overload conditioner to lower a temperature of cooled and discharged refrigerant gas of a compressor. A condenser(510) condenses an introduced refrigerant to spray a high-temperature refrigerant. An evaporator(520) evaporates an introduced refrigerant to spray a low-temperature refrigerant. An accumulator(530) built in a heat exchanger exchanges heat between the high-temperature refrigerant and the low-temperature refrigerant. A compressor(540) compresses gaseous refrigerant sprayed from the accumulator built in a heat exchanger to spray a high-temperature and high-pressure refrigerant to the condenser. An expansion valve(550) expands the liquid refrigerant of the accumulator built in a heat exchanger to spray the expanded refrigerant to the evaporator. An overcooling degree control unit(564) measures a temperature and a pressure of an inlet of the expansion valve, operates an overcooling degree in accordance with a difference between a saturated temperature of the measured pressure and the measured temperature, and bypasses the liquid refrigerant of the accumulator built in a heat exchanger to the outlet of the evaporator.

Abstract translation: 提供一种使用电子膨胀阀进行热交换的装置，使用电子膨胀阀的空调的室外机和多空调系统，以提高过冷度性能，以防止在一个入口处产生闪蒸气体 膨胀阀，以防止多空调系统的性能和可靠性的劣化，并且当空调器在过载调节器下操作以降低压缩机的冷却和排出的制冷剂气体的温度时，降低吸入的制冷剂的温度。 冷凝器（510）冷凝引入的制冷剂以喷射高温制冷剂。 蒸发器（520）蒸发引入的制冷剂以喷射低温制冷剂。 内置在热交换器中的蓄热器（530）在高温制冷剂和低温制冷剂之间交换热量。 压缩机（540）压缩从内置在热交换器中的蓄能器喷射的气态制冷剂，以将高温和高压制冷剂喷射到冷凝器。 膨胀阀（550）膨胀内置在热交换器中的蓄能器的液体制冷剂，以将膨胀的制冷剂喷射到蒸发器。 过冷度控制单元（564）测量膨胀阀的入口的温度和压力，根据所测量的压力的饱和温度和测量的温度之间的差来操作过冷度，并且绕过液体制冷剂 内置在热交换器中的蓄能器到蒸发器的出口。