JP2631674B2 - Air conditioner reheating temperature control method - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a method for controlling the reheat temperature of an air conditioner, which is performed by outside air capable of reheating and controlling the temperature of the air conditioner. is there.

(Conventional technology and its problems) Generally, an air conditioner refers to a device that sends cooling or heating air to a living space, that is, an air-conditioned area, and maintains the air-conditioned area in a comfortable temperature and humidity environment. The lower the humidity during summer cooling, the more comfortable the room, and the higher the humidity during winter heating, the more comfortable the room. .

However, lowering the cooling temperature or increasing the heating temperature in order to adjust the humidity has the adverse effect of causing the air-conditioned area to be too cold or too hot. The so-called so-called so-called "cooling" is sometimes used to cool the dehumidified air to the optimum temperature by heating the dehumidified air in the opposite direction, and to mix the humidified air with the low-temperature outside air to the optimum temperature during heating. Although re-heat treatment is performed, equipment for re-heating and a heat source are required during cooling, which is uneconomical.At the time of heating, it is mixed with low-humidity outside air. And the humidity changes greatly each time the temperature is adjusted.

(Objects of the Invention) The present invention has been made in order to solve the above-mentioned problems of the prior art.
The reheat of an air conditioner that requires the outside air that can receive a heat source for reheat treatment, heats the blast air during cooling through a heat exchanger, and cools the blast air during heating to adjust the temperature to the optimal temperature. An object of the present invention is to provide a temperature control method, wherein a heat exchange element is divided into two passages by a heat transfer member on the side of an outside air inlet and an air outlet of an air conditioner including a heat exchange coil, a humidifier, and a blower. Is provided, and outside air is taken in through the first passage of the element, and heat is exchanged between the outside air and the blown air by blowing the blown air to the area to be air-conditioned through the second passage. A bypass passage for directly taking in air and a bypass passage for directly blowing blast air to the area to be air-conditioned are provided, and the opening degree of dampers provided for opening and closing both bypass passages is adjusted to control the temperature of the blast air. Wet It is characterized in that to perform the adjustment.

Structure of the heat exchanger for carrying out the present invention method SUMMARY OF THE INVENTION The outside air inlet 1 _1, the external air supply port 1 _2, blast air inlet 1 ₃ and the casing 1 which is provided blower opening 1 _4, metal plate, the heat exchange element 2 which is divided into two passages provided by the heat transfer member 2 ₁ consisting of vinyl chloride film or the like, collected outside air a first passage of the element 2 inlet
1 ₁ and the outside air supply opening 1 ₂ and the communication path 1a for communicating, with the inlet 1 ₃ preparative second passage blown air blower opening 1 ₄ and communication passage 1b, the same casing 1, the external air inlet 1 ₁ and outside air supply port 1 ₂
Bypass passage 1c communicating the door directly, blown air inlet 1 ₃ and the blower opening 1 ₄ and a direct bypass passage 1d communicating respectively formed, both the bypass passage 1c, each of 1d, the damper 3 for opening and closing these passages , characterized in the provision of the 4, inlet 1 intake blown air and the outdoor air supply port 1 ₂ of the heat exchanger
_3, the heat exchange coil 5, the humidifier 6 is for carrying out the process of the present invention connected through the outdoor air inlet _81, respectively duct air blowing port ₈₂ of the air conditioner 8 with a blower 7 .

(Operation and Effect of the Invention) According to the above configuration of the present invention, the operation and effect of the method of the present invention for the illustrated embodiment will be described for each of the cooling operation and the heating operation of the air conditioner.

(During cooling operation) Flow cold water through the heat exchange coil 5 in the air conditioner 8 main body.
When driving the blower 7 to start the cooling operation, since the inlet 8 ₁ intake external air of the main body becomes negative, external air inlet of the casing 1
1 ₁ outside air is sucked from entering the casing. When the damper 3 keep the fully closed state, entering outside air enters the inlet ₈₁ intake ambient air of the main body through the external air supply port 1 ₂ through the first communication passage 1a of the heat exchange element 2, penetrates into the body I do. Outside air enters the body is by connexion cooled heat exchanger coil 5, whereby the dehumidified is blown out from the air blowing ports 8 ₂ as cooling air, through the inlet 1 ₃ intake feed air is connected to the air blowing port 8 ₂ penetrate into the casing 1, when leaving the damper 4 is fully closed, the invading cooling air aerodrome flows through the second communication passage 1b of the element 2 through connexion blower opening 1 _4, an air outlet 1 ₄ The air is blown out from the air outlet to each air-conditioned area through an air duct connected to the air-conditioner. In the continuous process of taking in the outside air and blowing the cooling air, the outside air that has entered the casing 1 cools the cooling air passing through the second communication passage 1b while passing through the first communication passage 1a of the heat exchange element 2. The cooling air is heated by depriving the heat of the outside air. In other words, heat is exchanged between the outside air and the cooling air via the heat exchange element 2. Even if the cooling temperature is lowered to increase the dehumidifying capacity, the heat treatment is performed again by this heat exchange. Cooling air of an appropriate temperature is sent into each air-conditioned area.

If it is desired to increase the temperature of the cooling air during the cooling operation, the damper 3 of the bypass passage 1c on the outside air side is opened to increase the supply amount of the outside air that is not pre-cooled, thereby increasing the temperature of the cooling air to be blown out. If it is desired to lower the temperature of the cooling air, the temperature of the cooling air to be blown can be reduced by opening the damper 4 on the blast air side and increasing the amount of the cooling air that does not pass through the heat exchange element 2. Therefore, cooling air at a desired temperature can be obtained by adjusting the degree of opening of the dampers 3 and 4.

(During heating operation) When hot water is supplied to the heat exchange coil in the air conditioner body and the blower is driven to start the heating operation, the dampers 3 and 4 may be in the fully closed state as in the cooling operation described above. Heat exchange is performed between the outside air and the heating air, the outside air is preheated, and the heating air is cooled.

In other words, even if the heating temperature is set high to increase the humidifying capacity of the humidifier 6, re-heat treatment is performed by this heat exchange, and appropriate-temperature air is sent to each air-conditioned area. This can be performed by adjusting the opening of the dampers 3 and 4 in the same manner as during operation.

As described above, according to the method for controlling the reheat temperature of an air conditioner according to the present invention, outside air can be used as a heat source for reheat treatment during cooling. It is economical because it does not require equipment such as a heating coil for reheating and a heat source as in the reburning method, and is pre-cooled to the outside air, so that cooling efficiency can be increased and energy loss can be reduced. At the time of heating, heating air only exchanges heat with the outside air and does not mix with the outside air.Therefore, the humidity may drop due to mixing with the outside air as in the conventional method. Without the disadvantage that sufficient humidity can be obtained and the humidity changes greatly each time the temperature is adjusted, and because the outside air is preheated, the heating efficiency and the humidification efficiency can be increased and the energy loss can be reduced. Less As it can Rukoto, in which very large effect as a method for the re-heat treatment and reheat temperature control of the air conditioner, may provide an advantage.

[Brief description of the drawings]

The drawings illustrate an embodiment of the present invention. FIG. 1 is a schematic side perspective view of a heat exchanger for carrying out the method of the present invention, FIG. 2 is a schematic plan perspective view thereof, and FIG. FIG. 4 is a schematic cross-sectional view taken along the line AA, FIG. 4 is a view taken along the line BB in FIG. 2, FIG. 5 is a view taken along the line CC in FIG. The figure is a schematic explanatory view showing the operation of the method of the present invention. DESCRIPTION OF SYMBOLS 1 ... Casing, 2 ... Heat exchange element, 3, 4 ... Damper, 5 ... Heat exchange coil, 6 ... Humidifier, 7 ... Blower, 8 ... Air conditioner

Continued on the front page (72) Inventor Yoshiaki Maruya 1-day Okawacho, Higashi-ku, Osaka-shi, Osaka Japan Land Yodoyabashi Building Shinko Kogyo Co., Ltd. (72) Inventor Kenji Kashihara 1st-day Okawa-cho, Higashi-ku, Osaka City, Osaka Japan Yodoyabashi Building Shinko Kogyo Co., Ltd. (56) References JP-A-1-194619 (JP, A)

Claims (1)

(57) [Claims] 1. An air conditioner having a heat exchange coil, a humidifier and a blower, wherein a heat exchange element partitioned into two passages by a heat transfer member is provided on an outside air inlet and a blower side of the air conditioner. By taking in outside air through the passage and blowing air to the air-conditioned area through the second passage, heat is exchanged between the outside air and the blown air, and a bypass passage and blown air for directly taking in the outside air. A bypass passage for blowing air directly to the air-conditioned area, and adjusting the opening degree of dampers provided to open and close both bypass passages, thereby adjusting the temperature and humidity of the blown air. A method for controlling the reheat temperature of an air conditioner.