Control method of air conditioner, air conditioner and storage medium

A control method and air conditioner technology, which is applied in the field of air conditioner control, air conditioner and storage medium, and can solve problems such as stagnation in the condenser, lack of oil in the system, and reduction of oil return in the oil return capillary.

Active Publication Date: 2017-08-18
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology

When encountering an oil separator with a lower temperature, the gaseous refrigerant is quickly condensed into a liquid refrigerant and stored in the oil separator, and the liquid refrigerant will dissolve a considerable amount of re

Method used

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  • Control method of air conditioner, air conditioner and storage medium
  • Control method of air conditioner, air conditioner and storage medium

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Embodiment Construction

[0029] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] The invention provides a control method for an air conditioner.

[0031] refer to figure 1 , figure 1 It is a flow chart of an embodiment of the air conditioner control method of the present invention.

[0032] In this embodiment, the control method of the air conditioner includes the following steps:

[0033] S10: When it is detected that the outdoor ambient temperature is lower than the preset temperature, the control compressor is started and the following control logic is run:

[0034] S20: Detect the exhaust superheat of the compressor at intervals of the first preset time interval;

[0035] S30: Judging whether the degree of superheat of the exhaust gas is less than a preset threshold, if yes, execute step S40, if not, return to step S20;

[0036] S40: Determine whether the discharge pressure of the ...

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Abstract

The invention provides a control method of an air conditioner, the air conditioner and a storage medium. The control method of the air conditioner is mainly used for startup of a compressor in a low-temperature environment, and when detection shows that the outdoor environment temperature is lower than a preset temperature, the compressor is started and enters the following logics that the exhaust superheat degree of the compressor is detected every first preset duration, an outdoor fan is controlled to operate by a second preset duration when the exhaust superheat degree is lower than a preset threshold value and the exhaust pressure of the compressor is higher than a first preset pressure threshold value, the control logic is stopped when detection shows that the operation time of the compressor reaches a third preset duration, and the air conditioner operates normally for refrigeration. By means of the control method of the air conditioner, the compressor can keep the exhaust superheat degree all the time after being started, the situation that too much refrigeration oil is dissolved when a gaseous refrigerant is quickly condensed into a liquid refrigerant, and consequently oil starvation of an air conditioner system is caused is avoided, the oil return amount of the compressor in case of low-temperature start is improved, and the service life of the compressor is prolonged.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, an air conditioner and a storage medium. Background technique [0002] For precision air conditioners, in some places where the temperature difference between day and night is large (such as deserts), the maintenance personnel of the small computer room will cut off the main power supply of the computer room at night, and then turn on the power again the next morning, that is, the air conditioner is at low temperature. The "freezer" needs to be started immediately to provide cooling capacity after one night, which is a great test for the low-temperature start-up of the unit. Since there is no preheating, during the start-up process, the exhaust superheat of the compressor gradually decreases and is almost close to saturated gas. When encountering an oil separator with a lower temperature, the gaseous refrigerant is quickly condensed in...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/64F24F11/70F24F2110/10F24F2110/12
Inventor 陈乾
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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