Air conditioning heat exchange device and air conditioner

Abstract

The invention provides an air conditioning heat exchange device and an air conditioner. The heat exchange device comprises a plurality of heat exchangers arranged in parallel, a processor and a storing device, the heat exchangers are independently and separately provided with electronic expansion valves which can be used for controlling the flow of a refrigerant, a computer program is stored in the storing device, and when the program is executed by the processor, the following steps can be performed. The steps include that parameters of the interior and environment of the air conditioner arecollected, and a correction coefficient K is obtained according to the parameters; the relative temperatures of the heat exchangers and the relative pressure of a compressor are detected, and comparedwith preset values, the change amount of the opening degree of the electronic expansion valves is calculated; the change amount of the opening degree of the electronic expansion valves, the opening degree EVO(n) of the current electronic expansion valves and the correction coefficient are calculated, and a calculated value EVO(n+1) is obtained; the opening degree of the electronic expansion valves is regulated according to the calculated value EVO(n+1); and the steps are repeated to continuously regulate the electronic expansion valves. The air conditioning heat exchange device is adopted inthe air conditioner. The air conditioning heat exchange device and the air conditioner can realize the balance and high efficiency of heat exchange of the air conditioner.

Description

technical field [0001] The invention belongs to the field of air conditioners, in particular to an air conditioner heat exchange device and an air conditioner. Background technique [0002] With the development of air conditioners, the multi-split unit has presented a compact development, and the cooling capacity / heating capacity per unit area has been continuously improved, and the heat exchange area of ​​the heat exchanger is one of the key factors restricting the performance of the unit. Dividing the heat exchanger into two parts can increase the heat exchange area of ​​the heat exchanger, reduce the pressure loss of the refrigerant in the heat exchanger, and improve the heat exchange efficiency of the heat exchanger. [0003] Chinese invention patent CN107631515A, heat pump air conditioner unit, including compressor, four-way valve, outdoor heat exchanger and indoor heat exchanger, the high-pressure exhaust port of the compressor is connected to the first port of the fou...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problem that the heat exchangers of air-conditioning units cannot be used in a balanced and efficient manner, the present invention proposes an air-conditioning heat exchange device and an air conditioner that can control multiple heat exchangers in a balanced and efficient manner.

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