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发明公开
CN107532827A 喷射器制冷回路 有权

喷射器制冷回路
摘要：
本发明公开了一种喷射器制冷回路(1)，所述喷射器制冷回路包括高压喷射器回路(3)，所述高压喷射器回路在循环制冷剂的流动方向上包括：排热换热器/气体冷却器(4)，所述排热换热器/气体冷却器具有入口侧(4a)和出口侧(4b)；具有不同容量的至少两个可变喷射器(6、7)，所述至少两个可变喷射器并联地连接，所述可变喷射器(6、7)中的每一者包括主要高压输入端口(6a、7a)、次要低压输入端口(6b、7b)和输出端口(6c、7c)；其中所述至少两个可变喷射器(6、7)的所述主要高压输入端口(6a、7a)流体地连接至所述排热换热器/气体冷却器(4)的所述出口侧(4b)；接收器(8)，所述接收器具有入口(8a)、液体出口(8c)和气体出口(8b)，其中所述入口(8a)流体地连接至所述至少两个可变喷射器(6、7)的所述输出端口(6c、7c)；至少一个压缩机(2a、2b、2c)，所述至少一个压缩机具有入口侧(21a、21b、21c)和出口侧(22a、22b、22c)，所述至少一个压缩机(2a、2b、2c)的所述入口侧(21a、21b、21c)流体地连接至所述接收器(8)的所述气体出口(8b)，并且所述至少一个压缩机(2a、2b、2c)的所述出口侧(22a、22b、22c)流体地连接至所述排热换热器/气体冷却器(4)的所述入口侧(4a)。所述喷射器制冷回路(1)还包括制冷蒸发器流动路径(5)，所述制冷蒸发器流动路径在所述循环制冷剂的流动方向上包括：至少一个制冷膨胀装置(10)，所述至少一个制冷膨胀装置具有流体地连接至所述接收器(8)的所述液体出口(8c)的入口侧(10a)以及出口侧(7b)；至少一个制冷蒸发器(12)，所述至少一个制冷蒸发器流体地连接在所述至少一个制冷膨胀装置(10)的所述出口侧(10b)与所述至少两个可变喷射器(6、7)的所述次要低压输入端口(6b、7b)之间。
摘要（英）：

The invention discloses an ejector refrigeration circuit (1) comprising a high pressure ejector circuit (3) comprising in the direction of flow of a circulating refrigerant: a heat rejecting heat exchanger/gas cooler (4) having an inlet side (4a) and an outlet side (4b); at least two variable ejectors (6, 7) with different capacities connected in parallel, each of the variable ejectors (6, 7) comprising a primary high pressure input port (6a, 7a), a secondary low pressure input port (6b, 7b) and an output port (6c, 7c); wherein the primary high pressure input ports (6a, 7a) of the at least twovariable ejectors (6, 7) are fluidly connected to the outlet side (4b) of the heat rejecting heat exchanger/gas cooler (4); a receiver (8), having an inlet (8a), a liquid outlet (8c), and a gas outlet (8b), wherein the inlet (8a) is fluidly connected to the output ports (6c, 7c) of the at least two variable ejectors (6, 7); at least one compressor (2a, 2b, 2c) having an inlet side (21a, 21 b, 21c) and an outlet side (22a, 22b, 22c), the inlet side (21a, 21 b, 21c) of the at least one compressor (2a, 2b, 2c) being fluidly connected to the gas outlet (8b) of the receiver (8), and the outlet side (22a, 22b, 22c) of the at least one compressor (2a, 2b, 2c) being fluidly connected to the inlet side (4a) of the heat rejecting heat exchanger/gas cooler (4). The ejector refrigeration circuit (1 )further comprises a refrigerating evaporator flowpath (5) comprising in the direction of flow of the circulating refrigerant: at least one refrigeration expansion device (10) having an inlet side (10a), fluidly connected to the liquid outlet (8c) of the receiver (8), and an outlet side (7b); at least one refrigeration evaporator (12) fluidly connected between the outlet side (10b) of the at leastone refrigeration expansion device (10) and the secondary low pressure input ports (6b, 7b) of the at least two variable ejectors (6, 7).

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