Refrigeration cycle device and refrigeration device and air-conditioning device having the refrigeration cycle device

Abstract

The invention provides a refrigeration cycle device, a refrigeration device and an air conditioner. The object of the present invention is to distribute the refrigerant more appropriately to the heat source side heat exchanger even in partial load operation in which the required capacity changes when the wind speed distribution of the heat source side heat exchanger is different in the vertical direction. Improve the period refrigeration coefficient as a refrigeration cycle device. The refrigerating cycle device of the present invention has: a compressor; a blower fan for a heat source side heat exchanger; The heat exchanger group is formed by grouping from the position close to the blower fan; the expansion valve; the heat exchanger on the utilization side that exchanges heat with the heat transport medium on the utilization side; the compressor, heat source side heat exchanger, expansion valve and A refrigerant pipe for circulating the refrigerant through the side heat exchangers; and a control device for controlling the amount of refrigerant flowing into each heat exchanger group according to the load factor.

Description

technical field [0001] The present invention relates to a refrigerating cycle device, a refrigerating device and an air conditioner having the refrigerating cycle device. Background technique [0002] In general, in a cooling device, a plurality of heat source side heat exchangers are arranged so as to surround a side surface. In addition, a machine room is arranged below the heat source side heat exchanger, and a fan for the heat source side heat exchanger is arranged above the heat source side heat exchanger. Therefore, the wind speed of the heat source side heat exchanger is unevenly distributed in the vertical direction. As a result, the ratio of the air flow rate passing through the heat source side heat exchanger to the refrigerant flow rate is not uniform, and the heat transfer area of ​​the heat source side heat exchanger may not be effectively utilized. [0003] In contrast, Patent Document 1 discloses a heat exchange unit in which a plurality of heat transfer tub...

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Problems solved by technology

In contrast, in Patent Document 1, under predetermined operating conditions in which the opening diameter of each orifice is set, the ratio of the refrigerant flow rate to the air flow rate can be optimized, but the distribution of the refrigerant amount to each area The ratio is fixed by the orifice, and the change of the refrigerant flow ratio due to the change of operating conditions is not considered.

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