公开(公告)号：EP2543941A4

公开(公告)日：2017-06-14

申请号：EP10847078

申请日：2010-06-10

申请人： LG ELECTRONICS INC

发明人： KIM BYEONG SU ,  HWANG JUN HYEON ,  KIM BEOM CHAN ,  YOO SANG HOON ,  MOON JUNG WOOK

IPC分类号： F25B43/00 ,  F25B41/00 ,  F25B45/00

CPC分类号： F25B43/02 ,  F25B31/004 ,  F25B41/00 ,  F25B41/003 ,  F25B2341/0012 ,  F25B2341/0016

摘要： A chiller according to the present invention comprises: a compressor for compressing a refrigerant; an oil separator for separating oil and the refrigerant discharged from the compressor; a condenser for condensing the refrigerant passing through the oil separator; and expander for expanding the refrigerant condensed in the condenser; an evaporator for cooling cold water with the refrigerant expanded in the expander and connected to a demanding place via cold water pipes; an ejector for partially passing the refrigerant compressed in the compressor and connected to the evaporator via an evaporator oil recovery path; an oil recovery path of the oil separator connected in such as manner that the oil leaked out of the oil separator passes through the oil recovery path so as to be recovered to the compressor; and an ejector outlet path connected in such a manner than the oil and the refrigerant leaked out of the ejector passes through the ejector outlet path so as to be recovered to the compressor. The oil recovery path of the oil separator and the ejector outlet path are disposed to be able to exchange heat. Therefore, it is possible to lower the temperature of the oil which has been recovered at high temperature via the oil recovery path of the oil separator is lowered. In addition, the liquid refrigerant which has been recovered via the evaporator oil recovery path is gasified in the evaporator. Therefore, it is possible to prevent the damage to the compressor and increase the efficiency of the compressor.

摘要翻译： 根据本发明的制冷机包括：用于压缩制冷剂的压缩机; 用于分离油和从压缩机排出的制冷剂的油分离器; 冷凝器，用于冷凝穿过油分离器的制冷剂; 以及膨胀器，用于膨胀在冷凝器中冷凝的制冷剂; 一个用于冷却冷水的蒸发器，其中制冷剂在膨胀器中膨胀并通过冷水管连接到要求苛刻的地方; 喷射器，用于部分地通过在压缩机中压缩的制冷剂并经由蒸发器油回收路径连接到蒸发器; 所述油分离器的油回收路径连接成使得从所述油分离器泄漏的油通过所述油回收路径以便被回收到所述压缩机; 以及以与油相同的方式连接的喷射器出口路径，并且泄漏出喷射器的制冷剂经过喷射器出口路径以便被回收到压缩机。 油分离器的油回收路径和喷射器出口路径设置为能够交换热量。 因此，可以降低经由油分离器的油回收路径在高温下回收的油的温度。 另外，通过蒸发器油回收路径回收的液态制冷剂在蒸发器中气化。 因此，可以防止压缩机的损坏并提高压缩机的效率。