Control method for lower limit of refrigeration humidity of air duct type air conditioner
A ducted air conditioner and humidity lower limit technology, which is applied in the direction of control input related to air characteristics, heating and ventilation control system, space heating and ventilation control input, etc. Comfort and other issues to achieve the effect of maintaining humidity and reducing water consumption
Inactive Publication Date: 2021-06-01
GUANDONG GIWEE TECH CO LTD
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[0002] Generally, when the air conditioner is running for refrigeration, the temperature of the evaporator is lower than the dew point temperature in the air, so that the moisture in the air will release heat and condense into water dew on the surface of the evaporator fins, resulting in the loss of air flowing through the evaporator fins. The moisture content is reduced, so that the humidity content of the air blown out of the air outlet is low, so that the indoor humidity content is reduced, and it is easy to cause discomfort to the human body
In the prior art, the excessive moisture content of the air flowing through the evaporator fins is generally prevented from being excessively reduced by controlling the surface temperature of the evaporator. The other part of the air directly passes through the gap between the fins, so this method cannot accurately prevent the excessive reduction of the moisture content of the air flowing through the evaporator fins
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[0021] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0022] refer to figure 1 , in this embodiment, an air outlet pipe 2 type air conditioner includes an air outlet pipe 2, an evaporator 1 and a compressor, wherein the evaporator 1 is preset with an air outlet 5, and the air outlet pipe 2 is installed on the air outlet 5; It also includes a first temperature detection unit 31 and a first humidity detection unit 32 for detecting the inlet air temperature T1 and the relative humidity φ1 of the inlet air flowing from the air outlet ...
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The invention discloses a control method for the lower limit of the refrigeration humidity of an air duct type air conditioner. The air conditioner comprises a first temperature detection unit, a first humidity detection unit, a second temperature detection unit and a second humidity detection unit. The first temperature detection unit and the first humidity detection unit are used for detecting the air temperature T1 and the relative humidity of inlet air flowing from an air outlet to an air outlet pipe correspondingly. The second temperature detection unit and the second humidity detection unit are used for detecting the air temperature T2 and the relative humidity of outlet air in the air outlet pipe correspondingly. The running frequency of a compressor is adjusted and reduced within each first preset time, so that the refrigeration power of the air conditioner is gradually reduced so as to increase the temperature of an evaporator, and therefore condensation of moisture of air in the air conditioner on the surfaces of fins of the evaporator is reduced, namely, moisture consumption of the air is reduced, the refrigeration power of the air conditioner is reduced, and the moisture content d1 of the inlet air is increased; and when the moisture content of the inlet air of the air conditioner is the same as the moisture content of the outlet air, the running frequency of the compressor is not adjusted, and the environment humidity is maintained.
Description
technical field [0001] The invention relates to the technical field of air conditioning systems, in particular to a method for controlling the lower limit of refrigeration humidity of an air duct type air conditioner. Background technique [0002] Generally, when the air conditioner is running for refrigeration, the temperature of the evaporator is lower than the dew point temperature in the air, so that the moisture in the air will release heat and condense into water dew on the surface of the evaporator fins, resulting in the loss of air flowing through the evaporator fins. The moisture content decreases, so that the humidity content of the air blown out of the air outlet is low, so that the indoor humidity content is reduced, and it is easy to cause discomfort to the human body. In the prior art, the excessive moisture content of the air flowing through the evaporator fins is generally prevented from being excessively reduced by controlling the surface temperature of the ...
Claims
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IPC IPC(8): F24F11/30F24F11/41F24F11/61F24F11/64F24F11/86F24F11/88F24F110/10F24F110/20
CPCF24F11/30F24F11/41F24F11/61F24F11/64F24F11/86F24F11/88F24F2110/10F24F2110/20
Inventor 周敏刘青
Owner GUANDONG GIWEE TECH CO LTD