Flow-way-changeable heat pump air conditioner heat exchanger and control method thereof

Abstract

The invention provides a flow-way-changeable heat pump air conditioner heat exchanger. The heat exchanger comprises an air collecting opening (1), a liquid collecting opening (2) and three heat exchanging flow ways arranged between the air collecting opening (1) and the liquid collecting opening (2). The three heat exchanging flow ways are connected with one another in parallel. The heat exchanger further comprises a control valve system which controls at least one flow way of the three heat exchanging flow ways to be connected or disconnected so as to achieve switching among the different flow ways. According to the flow-way-changeable heat pump air conditioner heat exchanger, switching of the heat exchanger flow ways in different operation conditions of a unit can be effectively achieved, so that the heat exchanging coefficient is increased and consequentially the heat exchanging effect is improved. The invention further relates to a control method of the air conditioner heat exchanger.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a heat pump air conditioner heat exchanger with a variable flow path and a control method thereof. Background technique [0002] For existing heat pump air-conditioning heat exchangers, the flow path of the heat exchanger is the same under various operating states of cooling, heating, and different operating frequencies, and a large number of studies have shown that cooling, heating, and different frequencies The optimal flow paths for indoor and outdoor heat exchangers are different. When the heat exchanger is used as a condenser, its pressure loss is small. At this time, we need to use fewer shunts to increase the refrigerant flow rate and increase the heat transfer coefficient; when the heat exchanger is used as an evaporator, when the unit is running at medium and high frequencies Compared with the influence of flow rate on heat transfer coefficient, the...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the air conditioner heat exchanger in the prior art cannot change the flow path of the heat exchanger and increase the heat transfer coefficient according to the actual operating conditions, thereby providing a variable Flow path heat pump air conditioner heat exchanger and control method thereof

Images