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Compressor unit control method and device

A compressor unit and control method technology, applied in heating and ventilation control systems, heating methods, mechanical equipment, etc., can solve the problems of low reliability of the whole machine, inconsistent running time of compressors, etc., to improve reliability and optimize control methods , the effect of balancing the running time

Active Publication Date: 2020-04-24
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method and device for controlling a compressor unit, aiming to solve the technical problem that the running time of the compressors in the prior art is inconsistent, resulting in low reliability of the whole machine

Method used

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  • Compressor unit control method and device
  • Compressor unit control method and device

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no. 1 example

[0095] Based on the first embodiment above, the step S50 in the control method of the compressor unit in this embodiment specifically includes:

[0096] Step S501: Detect whether there is a defrosting operation or an oil return operation in the compressor unit.

[0097] It should be noted that the defrosting operation is that the outdoor unit condenses into frost, and the return oil is not only the refrigerant but also the lubricating oil of the compressor circulating in the air conditioning system. The special name is refrigeration oil. It will circulate and cool with the refrigerant in the system, and finally return to the compressor in a low-temperature state with good viscosity. The "air conditioner compressor return oil" is the refrigeration oil that circulates back to the compressor in the system.

[0098] The air conditioning system detects whether there is a defrosting operation or an oil return operation in the corresponding compressor units of the indoor unit and the...

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Abstract

The invention belongs to the technical field of multi-split air conditioner control, and discloses a compressor unit control method and device. The method comprises the following steps of acquiring indoor unit load demand, and determining outdoor unit energy consumption demand according to the indoor unit load demand; determining the operation number of compressors according to the indoor unit load demand and the outdoor unit energy consumption demand; acquiring alternate priority corresponding to a compressor unit in a multi-split air conditioner system; performing alternate priority adjustment on the rotation priority according to the outdoor unit energy consumption demand to obtain first target alternate priority; and performing alternate priority adjustment on the compressor unit according to the indoor unit load demand, the first target alternate priority and the operation number of the compressors. By means of the mode, the operation duration of the compressor unit is balanced, and therefore the reliability of a whole machine is improved.

Description

technical field [0001] The invention relates to the technical field of multi-line control, in particular to a method and device for controlling a compressor unit. Background technique [0002] At present, with the wide recognition of the market for multiple compressors, the capacity of its single unit is also increasing. Most manufacturers adopt the parallel operation mode of dual compressors. However, since one outdoor unit is connected to multiple indoor units, when only part of the indoor units in the entire system are running, only one compressor can be turned on to meet the load demand. [0003] However, in order to prolong the service life of the multi-connected unit and prevent the long-term operation loss of a single compressor in the outdoor unit, in the prior art, the multi-connected unit is rotated at a fixed time, but this control method still has defects, which may cause two compressors The running time of the machine is inconsistent, which is not conducive to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/64F24F11/61F24F11/65F24F11/86F24F140/50F24F140/60
CPCF24F11/64F24F11/61F24F11/65F24F11/86F24F2140/50F24F2140/60
Inventor 颜华周代文杰宋培刚郑韶生杜泽峰陈龙
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD
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