Air conditioning system, and control method and control device thereof, and readable storage medium

Abstract

The invention provides an air conditioning system, and a control method and control device thereof, and a readable storage medium. The air conditioning system comprises an outdoor machine, M indoor machines and a hydropower module, wherein the M indoor machines and the hydropower module are respectively connected with the outdoor machine; M is a positive integer; and the hydropower module comprises a first heat exchanger, a second heat exchanger, a first compressor and a shifting unit. The method comprises the following steps of obtaining the running state of the outdoor machine, and / or obtaining the running state of each indoor machine; and according to the running state of the outdoor machine and / or the running state of each indoor machine, controlling the shifting unit to shift the running mode of the hydropower module. Through the adoption of the control method of the air conditioning system disclosed by the invention, according to the running state of the outdoor machine and eachindoor machine, the running mode of the hydropower module can be shifted through the shifting unit, so that the indoor machines are assisted to quickly heat; and shortening the defrosting time of theoutdoor machine is also facilitated, and the defrosting efficiency is improved, so that the comfort degree of the user in the using process is increased.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to an air conditioning system, a control method thereof, a control device and a readable storage medium. Background technique [0002] In recent years, traditional water heating systems such as solar collectors and photovoltaic panels will take up a lot of space because they are installed on the roof. Especially for hotels, the roof is expected to be built as a swimming pool or leisure space. The module belongs to renewable energy, occupies a small area, and has low energy consumption, so it is more and more popular in the market. The existing air conditioning system, especially the three-pipe heat recovery system, can realize the function of cooling and heating at the same time on the inside, so its end can be connected to the air-cooled internal unit and the hydraulic module. The hydraulic module is positioned to provide hot water and heating functions , Acting a...

AI Technical Summary

Problems solved by technology

[0003] However, when the air conditioning system is in heating operation in cold winter, when the hydraulic module operates in the heating mode, the system may have the following problems: On the one hand, the heat absorbed by the system from the air is limited The phenomenon of small air supply temperature difference, slow heating speed, and poor heating effect of the indoor unit affects the indoor ambient temperature, which in turn affects the comfort of indoor users during use; on the other hand, in order to ensure the normal operation of the system and the proper The temperature difference of the supply air needs to be regularly controlled by defrosting the heat exchanger of the external unit

In winter in the north, due to the low temperature, there will be a phenomenon that the heat exchanger of the external unit, especially the lower layer of the heat exchanger of the external unit, is frosted thicker and the defrosting is not clean.

Therefore, when the system runs for a long time and has multiple defrosting cycles, the frost layer will gradually accumulate, which will reduce the heating capacity of the system and have a certain impact on the reliability of the system operation. Long, it will cause a long time without air supply temperature difference inside, affect the indoor ambient temperature, and then affect the comfort of indoor users during use

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