JPH0318099B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for controlling the humidity of indoor air, for example, by making the indoor air humid under low humidity conditions.

"Prior Art" Dehumidification of this type of humidity usually relies on a dehumidification device used in an air conditioner or the like.

``Problems to be Solved by the Invention'' However, in this case, the humidity control was not accurate, and there was a problem that it could not be applied appropriately to food and drug-related applications that require precision. In addition, since the heat absorbed during indoor cooling is released outdoors by a radiator, there is a corresponding loss of thermal energy, which increases the operating load and becomes uneconomical.

"Means for Solving the Problems" Therefore, the present invention provides an air conditioner that includes an air cooler that cools indoor air and a radiator that radiates heat from the cooling. A radiator and a radiator are arranged in the same room, and the indoor air humidity can be controlled at a constant level through the dehumidification effect of the cooling coil of the air cooler.

"Operation" According to the present invention, the cooler (evaporator) and radiator (condenser) of an existing air conditioner are arranged in the same room, and the amount of cooling heat and the amount of radiated heat are balanced. By controlling the air conditioner to maintain a constant temperature in the room, and by dehumidifying the air using the cooling coil of the cooler, it is possible to precisely and easily control the indoor humidity. Thermal efficiency can be improved by allowing the amount of heat absorbed during cooling to cancel out the amount of heat radiated in the same room without causing heat loss by radiating heat outside the room, making the entire device economical. This makes it possible to control the humidity of indoor air well and accurately.

``Example'' An example of the present invention will be described in detail below with reference to the drawings.

Figure 1 is an explanatory diagram of the whole, in which 1 is an evaporator which is an air cooler having a cooling coil, 2 is a compressor, 3 is a liquid receiver, 4 is a condenser which is a heat radiator, and 5 is a blower. The cooling unit 6 installed in the room A is equipped with the evaporator 1. Compressor 2. Receiver 3. In addition to incorporating a blower 5 into each unit, the unit 6 is provided with an air inlet 7 and an air outlet 8. Also,
The condenser 4 is disposed on one side of the room A facing the unit 6, and the refrigerant is supplied to the compressor 2. Condenser 4. Receiver 3. While repeating one refrigeration cycle that returns through the evaporator 1 and returns to the compressor 2, the condenser 4 gives the heat of condensation of the refrigerant to the indoor air A to heat the air, while the evaporator 1 gives the heat of evaporation of the refrigerant to the indoor air A. Indoor A
It is designed to cool the air by stealing it from the air.
The amount of heat dissipated in the condenser 4 during the air heating operation and the amount of cooling heat in the evaporator 1 during the air cooling operation are made to be substantially the same, and the room temperature is maintained at a substantially constant temperature without changing. There is.

On the other hand, the cooling coil of the evaporator 1 is provided so as to keep the coil surface below the dew point temperature of the air, and a water receiver is a water receiver that receives dew condensation that forms on the coil surface when air passes through the cooling coil and is cooled. 9 faces below the evaporator 1, and the condensation taken out as water in the container 9 is discharged to an outdoor water tank 11 via a communication pipe 10.

The present embodiment is constructed as described above, and the refrigerant that has been compressed to a high temperature and high pressure in the compressor 2 and becomes a gas is liquefied by releasing the heat of condensation in the condenser 4. Heat the air with heat. This high-pressure refrigerant liquid then flows through an expansion valve (not shown).
When the air is adiabatically expanded through the air and evaporated in the low-pressure evaporator 5, heat of evaporation is taken away from the air sucked in through the suction port 7 to cool the air.In this case, the air is heated in the condenser 4. The rise in room temperature caused by this and the fall in room temperature caused by cooling the air in the evaporator 5 are balanced, and the room temperature as a whole remains almost constant with almost no change. Under such conditions, the cooling coil of the evaporator 5 is maintained at a temperature below the outdoor temperature of the air, so when air passes through this cooling coil, the contact between the air and the coil causes the coil to Condensation occurs on the surface, and the humidity of the air passing through the coil decreases accordingly, resulting in a decrease in air humidity. In this case, humidity can be controlled by adjusting the surface temperature of the cooling coil or adjusting the operating time.
In this way, by utilizing the existing air conditioner, it is possible to maintain a constant low humidity level in indoor air with high precision very easily.

In the above-mentioned embodiment, the condenser 4 is installed in the room A together with the cooling unit 6, but as shown in FIG. When the room 12 is connected to the room A, humidity control is performed as described above, but when the room 12 is isolated from the room A and opened to the outdoors, the condenser 4 is normally used as an air-cooled outdoor radiator. It is possible to control the room temperature of the room, and to switch between humidity and room temperature control.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides an air conditioner that includes an air cooler 1 that cools indoor air and a radiator 4 that radiates heat from the cooling. The cooler 1 and the radiator 4 are arranged in the same room A, and the cooling coil of the air cooler 1 has a dehumidifying effect to control the indoor air humidity at a constant level, so it is commonly used. It is possible to easily control indoor air humidity accurately by utilizing the cooler 1 and radiator 4 of the existing air conditioner, and in this case, the heat absorbed during indoor cooling can be radiated as usual. It is economical because heat is radiated indoors again without radiating heat to the outside with the heat exchanger 4, preventing the loss of thermal energy and reducing the operating load to the maximum. It can be carried out easily and accurately using extremely simple and economical means, and has remarkable effects such as making it possible to carry out various operations without any trouble under constant low humidity conditions.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the entire structure, and FIG. 2 is an explanatory diagram showing another example of a modified structure. 1...Cooler, 4...Radiator, A...Indoor.

Claims (1)

[Claims] 1. In an air conditioner equipped with an air cooler that cools indoor air and a radiator that radiates heat from the cooling, the air cooler and the radiator are installed in the same room, and the air cooler is cooled. A method for controlling indoor air humidity, characterized in that indoor air humidity is controlled at a constant level through the dehumidification effect of a coil.