JPWO2023181374A5

JPWO2023181374A5 -

Info

Publication number: JPWO2023181374A5
Application number: JP2024509674A
Authority: JP
Filing date: 2022-03-25
Publication date: 2024-05-23

Description

以上のように、制御装置１００は、潜熱能力よりも潜熱負荷が大きい場合（ステップＳ０４、Ｙ２）、室内５８１に対して設定温度Ｔｓと設定湿度Ｈｓとについて、設定温度Ｔｓが外気温度Ｔｏより低く、かつ、設定湿度Ｈｓが外気湿度Ｈｏより低い状態を示す両立状態が成立しているかどうかを判定する。両立状態はステップＳ０８のＸ３である。制御装置１００は、判定結果に基づいて、外調機側調整弁３１０の開度と、内調機ユニット２００の備える調整弁２１０の開度とを制御する。制御装置１００は、両立状態（Ｘ３）が成立していると判定した場合、外調機側調整弁３１０の開度を現在の開度よりも大きくする。制御装置１００は、両立状態が成立していない判定し、さらに、設定温度Ｔｓが外気温度Ｔｏより高く、かつ、設定湿度Ｈｓが外気湿度Ｈｏより高いと判定した場合、内調機ユニット２００の備える調整弁２１０の開度を現在の開度よりも大きくする（ステップＳ０１０）。 As described above, when the latent heat load is greater than the latent heat capacity (step S04, Y2), the control device 100 judges whether a compatible state is established for the set temperature Ts and set humidity Hs for the room 581, which indicates a state in which the set temperature Ts is lower than the outdoor temperature To and the set humidity Hs is lower than the outdoor humidity Ho. The compatible state is X3 in step S08. Based on the judgment result, the control device 100 controls the opening degree of the outdoor air conditioning unit side adjustment valve 310 and the opening degree of the adjustment valve 210 provided in the indoor air conditioning unit 200. When the control device 100 judges that the compatible state (X3) is established, it increases the opening degree of the outdoor air conditioning unit side adjustment valve 310 to a value greater than the current opening degree. If the control device 100 determines that the compatible state is not established and further determines that the set temperature Ts is higher than the outside air temperature To and the set humidity Hs is higher than the outside air humidity Ho, it increases the opening degree of the regulating valve 210 provided in the indoor conditioning unit 200 to a value greater than the current opening degree (step S010).

Claims

In an air conditioning system,
an indoor conditioning unit including: an adjustment valve that is disposed in a circuit in which a heat medium circulates, into which the heat medium flows and from which the heat medium flows out; and an indoor conditioning unit that is disposed in the circuit, into which the heat medium that flows out of the adjustment valve flows in, exchanges heat between the inflowing heat medium and air in a target space that is a target for air conditioning, and from which the heat medium flows out;
A control device that controls the temperature of the heat medium flowing into the regulating valve and controls the opening degree of the regulating valve;
Equipped with
The control device includes:
An air conditioning system that controls the temperature of the heat medium flowing into the adjustment valve based on a comparison between the sensible heat load of the target space and a sensible heat capacity that indicates the processing capacity of the air conditioning system for the sensible heat load, and controls the opening degree of the adjustment valve based on a comparison between the latent heat load of the target space and a latent heat capacity that indicates the processing capacity of the air conditioning system for the latent heat load.

The control device includes:
When the sensible heat load is greater than the sensible heat capacity, the temperature of the heat medium flowing into the regulating valve is reduced;
When the sensible heat load is smaller than the sensible heat capacity, the temperature of the heat medium flowing into the regulating valve is increased;
The control device includes:
When the latent heat load is greater than the latent heat capacity, the opening degree of the regulating valve is increased;
The air conditioning system according to claim 1 , wherein when the latent heat load is smaller than the latent heat capacity, the opening degree of the regulating valve is reduced.

The air conditioning system includes:
The indoor air conditioning unit includes a plurality of the indoor air conditioning units,
Multiple indoor conditioning units are
connected in parallel to the circuit,
The heat medium circulating in the circuit is
The branched flow is then fed into the regulating valve of each of the plurality of internal processing units,
The control device includes:
When the sensible heat load is greater than the sensible heat capacity, the temperature of the heat medium circulating through the circuit is reduced;
When the sensible heat load is smaller than the sensible heat capacity, the temperature of the heat medium circulating through the circuit is increased;
When the latent heat load is greater than the latent heat capacity, the opening degree of the adjustment valve of one or more indoor processing units among the plurality of indoor processing units is increased;
The air conditioning system according to claim 1 , wherein when the latent heat load is smaller than the latent heat capacity, the opening degree of the adjustment valve of one or more of the indoor conditioning units is reduced among the plurality of indoor conditioning units.

The air conditioning system further comprises:
An outdoor air conditioning unit is connected in parallel to the indoor air conditioning unit, and draws in outdoor air for ventilating the target space, cools the drawn in outdoor air, supplies the cooled outdoor air to the target space as supply air, draws in air in the target space, and exhausts the drawn in air from the target space as exhaust air.
The outdoor air conditioning unit includes:
an outdoor air-conditioning unit side regulating valve into which the heat medium flows and through which the heat medium flows out;
an outdoor air-conditioning unit that is disposed in the circuit, into which the heat medium flowing out of the outdoor air-conditioning unit side regulating valve flows and that cools the outdoor air by exchanging heat between the flowing heat medium and the outdoor air;
Equipped with
The heat medium circulating in the circuit is
The water is branched and flows into the regulating valve of the indoor air conditioning unit and the outdoor air conditioning unit side regulating valve,
The control device includes:
The air conditioning system of claim 1, wherein when the latent heat load is greater than the latent heat capacity, a determination is made as to whether a compatible state is established for the temperature and humidity set for the target space, indicating that the set temperature is lower than the outside air temperature and the set humidity is lower than the outside air humidity, and the opening degree of the outdoor air conditioning unit side adjustment valve and the opening degree of the adjustment valve provided in the indoor air conditioning unit are controlled based on the determination result.

The control device includes:
The air conditioning system according to claim 4, wherein when it is determined that the both conditions are satisfied, the opening degree of the outdoor-air-conditioning-unit side regulating valve is increased.

The control device includes:
5. The air conditioning system of claim 4, wherein when it is determined that the compatible state is not established and further when it is determined that the set temperature is higher than the outside air temperature and the set humidity is higher than the outside air humidity, the opening degree of the adjustment valve provided in the indoor air conditioning unit is increased.

The control device includes:
7. The air conditioning system according to claim 2, further comprising: a control valve for controlling a temperature of the heat medium flowing into the control valve and a control valve for controlling an opening degree of the heat medium flowing into the control valve; and a control valve for controlling an opening degree of the heat medium flowing into the control valve. The control valve is configured to control the temperature of the heat medium flowing into the control valve and the opening degree of the heat medium flowing into the control valve.