Refrigeration device and operation method of the refrigeration device
A refrigeration device and refrigerant technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of insufficient refrigerant volume and insufficient temperature rise, and achieve the effect of simple control and sufficient temperature rise
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[0245] Modification 1 is to install a gas-liquid heat exchanger 17 for heat exchange between the piping line L6 on the upstream side and the piping line L8 on the downstream side of the internal heat exchanger 5 in the refrigerant circuit of the refrigeration device 51 of the embodiment. (refrigerating unit 51A) (refer to Figure 12 )example of. Figure 12 It mainly shows the refrigerant circuit with the refrigeration device 51 in the refrigerant circuit of the refrigeration device 51A (refer to figure 1 ) Partial circuit diagrams of the different parts.
[0246] The gas-liquid heat exchanger 17 is connected between the solenoid valve 11 and the expansion valve 12 with respect to the piping line L6. And it is connected between the interior heat exchanger 5 and the branch part D3 with respect to the piping line L8.
[0247] During the cooling operation of the refrigeration unit 51A, the refrigerant Figure 12 Flow in the direction of the arrow in the piping portion shown by...
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