Air conditioner system and control method thereof

Abstract

The invention discloses an air conditioner system and a control method thereof. The air conditioner system comprises at least one heat exchanger and at least one control mechanism. Each control mechanism is connected with one of at least one heat exchanger and used for controlling the corresponding heat exchanger to be switched between a first work state and a second work state. When the heat exchangers are in the first work state, liquid discharging is conducted, and when the heat exchangers are in the second work state, liquid storage is conducted. The air conditioner system and the controlmethod thereof solve the technical problem that under the situation that excessive refrigerants exist in an air conditioner system in the prior art, running reliability is low.

Description

technical field [0001] The present invention relates to the field of air conditioning control, in particular to an air conditioning system and a control method thereof. Background technique [0002] The biggest feature of the multi-connected air conditioning system is that a single outdoor unit can be connected to multiple indoor units, which is convenient for installation and saves installation space. However, for a multi-connected system, when the unit is running at low load, or the number of indoor units is small, there are often low-load controls due to the large difference in the volume ratio between the outdoor unit and the indoor unit heat exchanger, or the large amount of circulating refrigerant in the system. issues of reliability. For example, in actual use, for transitional seasons or some special application places, the refrigeration operation is often operated at part load, and the condensation pressure is low at this time, and most of the refrigerant is often ...

AI Technical Summary

Problems solved by technology

The low condensing pressure will cause the pressure difference between the front and back of the valve to be too small, and the liquid supply power will be insufficient, which will reduce the adjustment ability of the throttling mechanism such as the electronic expansion valve, the cooling capacity will decrease, and it will easily cause the system to return liquid

Low condensing pressure will also lead to low exhaust superheat, and the ability of the refrigerant to carry lubricating oil will increase, which will affect the reliability of the compressor.

[0003] Aiming at the technical problem of low operating reliability in the case of too much refrigerant in the air conditioning system in the related art, no effective solution has been proposed so far

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