Heating control device and method of air conditioning system, and air conditioning system

Abstract

The invention discloses a heating control device and method for an air conditioning system, and the air conditioning system. The device comprises an obtaining unit which obtains the air suction temperature and frequency of a compressor of the air conditioning system, and obtains the outdoor environment temperature of the air conditioning system, and a control unit which controls the opening degreeof a throttling unit corresponding to each row of micro-channel heat exchangers in more than two rows of micro-channel heat exchangers according to the air suction temperature, the frequency of the compressor, and the outdoor environment temperature in a heating mode so as to control the refrigerant flow of each row of the micro-channel heat exchangers in the more than two rows of micro-channel heat exchangers, wherein an outdoor heat exchanger of the air conditioning system comprises more than two rows of micro-channel heat exchangers which are arranged in parallel, and one throttling unit is arranged on a pipeline of each row of micro-channel heat exchangers. According to the scheme, accurate flow control is carried out on the front-row heat exchangers and the rear-row heat exchangers in the double-row micro-channel heat exchangers through the double electronic expansion valves, and front-row refrigerants and rear-row refrigerants in the double-row micro-channel heat exchangers arereasonably distributed according to the heat exchange capacity of the heat exchanger.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning systems, in particular to a heating control device, method and air-conditioning system for an air-conditioning system, and in particular to a heating-mode flow control device, method and air-conditioning system for an air-conditioning system with double-row micro-channel heat exchangers . Background technique [0002] Microchannel, also known as microchannel heat exchanger, is a heat exchanger with a channel equivalent diameter of 10-1000 μm; The headers are connected; a baffle is set in the header to separate the flow channel of the heat exchanger into several processes. For the double-row micro-channel heat exchanger, the double-row micro-channel heat exchanger has the problem of unreasonable distribution of refrigerant between the front and rear rows. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not mean ...

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Problems solved by technology

[0004] The object of the present invention is to provide a heating control device, method and air-conditioning system for an air-conditioning system to solve the problem of unreasonable distribution of refrigerants in the front and rear rows of the double-row micro-channel heat exchanger. In the channel heat exchanger, the front and rear row heat exchangers carry out precise flow control to realize the effect of reasonable distribution of the refrigerant in the front and rear rows of the double-row micro-channel heat exchanger according to the heat exchange capacity of the heat exchanger

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