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A kind of antifreeze control method of air conditioner

A control method and air conditioner technology, which are applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as affecting the normal operation of the unit, reducing the water storage volume of the water receiving tray, and leaking water from the water receiving tray, etc. Achieve the effect of avoiding icing, improving stability and reliability, and simple control

Active Publication Date: 2021-11-16
NANJING TICA AIR CONDITIONING CO LTD
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the various structures of the indoor unit, when the water storage height of the water receiving tray is higher than the surface of the heat exchanger, the frost will turn into ice cubes and cannot be weathered through the indoor circulation. Cause water leakage from the water receiving tray, affecting the normal operation of the unit

Method used

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  • A kind of antifreeze control method of air conditioner

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] A unitary air conditioner includes a refrigerant circulation circuit composed of a compressor, a four-way valve, an outdoor heat exchanger, a throttling component, an indoor heat exchanger and a gas-liquid separator. The indoor heat exchanger is provided with a temperature sensor capable of detecting the temperature Ti of the evaporator coil.

[0033] Such as figure 1 As shown, the antifreeze control method of the above-mentioned air conditioner comprises the following steps:

[0034] 1) The unit is in cooling operation, the compressor is turned on, the four-way valve is closed, the outdoor fan is turned on, and the indoor fan is turned on; at the same time, the initial value of the N parameter is set to 0;

[0035] 2) Detect Ti parameter;

[0036] 3) If Ti ≤ T1, and the duration ≥ t1, go to step 4); otherwise, go to step 1); where: T1 enters ...

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Abstract

The invention relates to an antifreeze control method for an air conditioner, which is applied to a unitary air conditioner; agent circulation loop; the indoor heat exchanger is provided with a temperature sensor capable of detecting the temperature Ti of the evaporator coil. When the unit is cooling at low temperature, according to Ti and the duration, the unit is adjusted to enter the ventilation defrosting and hot gas defrosting procedures, so as to avoid the freezing phenomenon of the unit and improve the stability and reliability of the unit operation.

Description

technical field [0001] The invention relates to an air conditioner control method, in particular to an antifreeze control method, in particular to an air conditioner antifreeze control method. Background technique [0002] More and more places need low-temperature refrigeration to maintain low indoor ambient temperature, such as computer rooms, drug storage warehouses, chilled seafood supermarkets, laboratories, processing workshops with heat sources, etc. The outdoor ambient temperature used in these places ranges from 16°C to -15°C ℃, the indoor ambient temperature is generally about 16 ℃ ~ 25 ℃. [0003] Cooling operation in a low-temperature environment, the outdoor ambient temperature is too low to reduce the condensation temperature of the air conditioning system, and the evaporation temperature decreases. Stop the compressor to prevent the accumulation of frost in the indoor heat exchanger, and use the indoor circulating air to melt the frost. After defrosting, conti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/43F24F11/61F24F11/64F24F11/84F24F11/86F24F11/72F24F11/871F24F11/88F24F140/20
CPCF24F11/43F24F11/61F24F11/64F24F11/72F24F11/84F24F11/86F24F11/871F24F11/88F24F2140/20
Inventor 谭秋晖杨亚华徐来福任奎张泽隆樊军鹏
Owner NANJING TICA AIR CONDITIONING CO LTD