Refrigeration and dehumidification control method for air conditioner and air conditioner system

Abstract

The invention discloses a refrigeration and dehumidification control method for an air conditioner. The refrigeration and dehumidification control method for the air conditioner includes the steps that in the running process that the air conditioner performs refrigeration and dehumidification, when humidity is larger than a preset temperature threshold, whether the air conditioner enters an anti-condensation mode to run or not is judged according to the variable of the indoor environment temperature and / or the variable of the coiled pipe temperature of an indoor heat exchanger, and the air conditioner is controlled to run according to the judgment result. The invention further discloses an air conditioner system. By means of the refrigeration and dehumidification control method for the air conditioner, whether the air conditioner is needed to enter the anti-condensation mode or not can be accurately judged, and therefore the running cost of the air conditioner is reduced.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to an air conditioning system and a cooling and dehumidification control method for the air conditioning. Background technique [0002] During the cooling operation of the air conditioner, before the room temperature reaches the set temperature and when the room load is large, the air conditioner needs a large cooling capacity to cool down and maintain the load. If it keeps running at a high frequency, the temperature of the indoor coil will be too low, so that the temperature of the indoor coil will always be lower than the dew point temperature of the air, so that the air conditioner will always be in the state of cooling and dehumidification, and the condensed water produced by dehumidification will be Flow into the water receiving tank along the evaporator to be discharged outdoors, but when the air humidity is high, a large amount of condensed water generated by dehumidification...

AI Technical Summary

Problems solved by technology

If it keeps running at a high frequency, the temperature of the indoor coil will be too low, so that the temperature of the indoor coil will always be lower than the dew point temperature of the air, so that the air conditioner will always be in the state of cooling and dehumidification, and the condensed water produced by dehumidification will be Flow into the water receiving tank along the evaporator to be discharged outdoors, but when the air humidity is high, a large amount of condensed water generated by dehumidification may not have time to be discharged outdoors and overflow from the water receiving tank or directly blow out along the air duct with the air conditioning wind, which will cause water leakage in the air conditioner or water blowing phenomenon

[0003] In the prior art, the current indoor humidity is generally obtained by installing a humidity sensor on the air conditioner, and the corresponding anti-condensation control is performed after the current indoor humidity is greater than the set value, but this solution is still not accurate in actual use. The timing of ground anti-condensation control, resulting in an increase in the operating cost of the air conditioner

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