JPH0587417A - Dehumidifying device - Google Patents

Abstract

PURPOSE:To provide a dehumidifying device which performs dehumidification without substantially changing the temperature of indoor air being an object to be air-conditioned. CONSTITUTION:A freezing cycle comprises a compressor 4, a condenser 3, an expansion mechanism 5, and a vaporizer 2. The condenser 3 is partitioned into a condenser 3a in a dehumidifying air duct and a condenser 3b in a radiation air duct, and a partition plate 9 by which the interior of a unit is divided into two compartments is provided. A first blower 7 with the aid of which indoor air is forced to pass the vaporizer 2 and the condenser 3a and a second blower 8 to force outdoor air to pass the condenser 3b are provided. One unit is provided with the dehumidifying air duct by the first blower 7 and the radiation air duct by the second blower 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying device, and more particularly to a dehumidifying device suitable for maintaining room temperature in a dehumidifying target room.

[0002]

2. Description of the Related Art Conventionally, there are the following dehumidifiers using a refrigeration cycle. (1) A room air conditioner equipped with a dry circuit that is used during the middle of rainy season and autumn rain, and cools and dehumidifies using only the evaporator during the refrigeration cycle, (2) household dehumidifier, etc. Then, after cooling and dehumidifying with an evaporator in the refrigeration cycle, heating with a condenser (3) The cycle of (2) above is used as an indoor unit, and a unit having a second condenser is installed side by side to control the indoor temperature. One in which two condensers are switched and used according to changes, for example, JP-A-60-161717 and JP-A-62-162.
The technology described in Japanese Patent No. 41548 is known.

[0003]

In air conditioning for humans, it is necessary to maintain temperature and humidity within a comfortable range.
It can be said that temperature is a more important environmental factor than humidity. However, during the rainy season and the like, only dehumidification is often necessary, and the dehumidifying operation is performed by the devices (1) to (3). With the means of (1), the temperature of the air decreases with dehumidification, so the temperature drops too much due to the humidity being maintained. Alternatively, when the temperature maintenance is prioritized, there is a problem that the dehumidifying operation is limited and the humidity cannot be maintained.

In the means (2), since the heating capacity after cooling and dehumidifying is larger due to the characteristics of the refrigerating cycle, there is a functional problem that the temperature rises too much due to the maintenance of humidity. Further, in the device of (3), since the means of (1) and (2) above are switched and used, the temperature can be maintained together with the humidity, but two condensers are installed, and further, a switching valve and the like are provided. There is a problem in that it becomes necessary and the configuration and control become complicated.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and an object thereof is to provide a dehumidifying device for dehumidifying the indoor air temperature of an air-conditioned object with almost no change. It is a thing.

[0006]

In order to achieve the above object, the dehumidifying device according to the present invention has a compressor, a condenser,
In a dehumidifying device comprising a decompression device and a refrigerating cycle with an evaporator, and at least a blower that forms an air passage for dehumidifying with the evaporator, a first blower that allows air to pass through a part of the evaporator and the condenser. , A second blower that allows air to pass through the rest of the condenser, and a partition plate that separates the air passages of the first and second blowers.

More specifically, in a dehumidifying device provided with a blower that constitutes a refrigeration cycle by a compressor, a condenser, a pressure reducing device, and an evaporator, and a blower that forms an air passage for dehumidifying by the evaporator and heating by the condenser, The condenser is divided into a first condenser and a second condenser, and a partition plate for separating the air passage is provided,
A first blower that allows the indoor air to pass through the first condenser that is partitioned from the evaporator, and a second blower that allows the outdoor air to pass through the partitioned second condenser, and a single device Among them, the dehumidifying air passage by the first air blower and the heat radiating air passage by the second air blower are configured. More specifically, the partition plate is installed in the same direction as the radiator fins of the condenser, the heat transfer pipe of the condenser through which the refrigerant flows, is piped vertically to the surface of the partition plate. The heat transfer pipes are arranged alternately in the dehumidifying air passage and the heat radiating air passage.

[0008]

The function of the above technical means is as follows. Part of the room air to be air-conditioned is sucked into the dehumidifying air passage by the operation of the first blower, and is cooled and dehumidified by passing through the evaporator. After that, it passes through a portion (first condenser) in the dehumidifying air passage of the condenser and is heated. At this time, the partition plate that separates the two air passages is installed so that the temperature blown out from the dehumidifying air passage is substantially the same as the suction temperature, so that the humidity from the dehumidifying air passage is lower than that in the room, and It is blown out at about the same temperature as the room. Therefore, it is possible to dehumidify the room with almost no change in the room air temperature.

On the other hand, a part of the outdoor air is sucked into the radiating air passage by the operation of the second blower, and passes through a portion (second condenser) in the radiating air passage of the condenser to be heated. And is blown out of the room. At this time, since the partition plate is installed in the same direction as the radiator fins of the condenser, air with high humidity outside does not leak to the dehumidification air passage, and dehumidification inside the room can be performed more effectively.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Each embodiment of the present invention will be described below with reference to FIGS. 1 is a schematic cross-sectional view showing the structure of a dehumidifying device according to an embodiment of the present invention, FIG. 2 is a perspective view showing the structure of a condenser and a partition plate of FIG. 1, and FIG. It is a diagram which shows the state change of air. First, the configuration of the dehumidifying device 1 shown in FIG. 1 will be described. In FIG. 1, 2 is an evaporator provided near the indoor suction port 11, 3 is a condenser, and this condenser 3 is a dehumidified wind related to the first condenser partitioned by a partition plate 9. It is composed of a condenser 3a in the passage and a condenser 3b in the radiating air passage related to the second condenser. Reference numeral 4 is a compressor, 5 is an expansion mechanism (capillary tube) related to a decompression device, and 6 is a drain tank.

Reference numeral 7 is a first blower for passing the indoor air to the evaporator 2 and the condenser 3a in the dehumidifying air passage, and 8 is a second blower for passing the outdoor air to the condenser 3b in the radiating air passage. Blower, 9 is dehumidification by the first and second blowers 7, 8.
A partition plate that separates the radiant air passage, and the material of this partition plate 9 is
Use a combination of a high moisture permeation prevention effect and a high heat insulation effect, or use a material with both high effects. 10a is a duct for sucking outdoor air, 10b is
A duct that blows air out of the room, 11 is an indoor air inlet, 12 is an indoor outlet, 13 is an inlet connected to the duct 10a, and 14 is an outlet connected to the duct 10b. The dehumidifying device 1 comprises a dehumidifying air passage by a first air blower and a heat radiating air passage by a second air blower via a partition plate 9 in one unit. One dehumidifier is provided. 3 is divided by the partition plate 9 into a condenser 3a in the dehumidifying air passage and a condenser 3b in the radiating air passage.

The operation of the dehumidifying device 1 will be described with reference to FIGS. 1 to 3. Part (A) of the air in the air-conditioned room is sucked from the suction port 11 and cooled and dehumidified when passing through the evaporator 2 to become low-temperature low-humidity air shown in (B). Then, of the condensers 3, the condenser 3a in the dehumidifying air passage
Be heated when passing through. At this time, the partition plate 9 is installed so that the state of the air after heating becomes almost the same temperature as the suction air (A) as shown in FIG. As a result, air having a humidity lower than that in the room and having substantially the same temperature is blown into the room. Therefore, the indoor dehumidification can be performed with almost no change in the indoor air temperature.

Here, the position where the condenser 3 is partitioned can be determined by the ratio of the cooling enthalpy difference ΔiSH shown in FIG. 3 and the total heat dissipation enthalpy difference (ΔiSH + Δi2) when the air volume is the same. Generally, in temperature and humidity conditions that humans feel comfortable,
ΔiSH / Δi1≈o. 7, (ΔiSH + Δi2) / Δ
Since i1≈1.3, the condenser 3a portion in the dehumidifying air passage of the condenser 3 is approximately 5 by dividing the preceding term by the latter term.
4% enthalpy is determined as the position where heat can be transferred. Considering the difference in the pre-heating temperature, the heat transfer area of the condenser in the dehumidifying air passage is about 40%.

On the other hand, a part (D) of the outdoor air is sucked into the radiating air passage through the duct 10a and the suction port 13 and passes through the condenser 3b in the radiating air passage of the condenser 3. It is heated (E), and is blown out of the room through the second blower 8, the air outlet 14, and the duct 10b. By the way, as shown in FIG. 2, the partition plate 9 is installed in the same direction as the surface of the radiator fins 15 for the air of the condenser 3. In the embodiment shown in FIGS. 1 and 2, since the position of the partition plate 9 is fixed, the partition member 16 is sandwiched between the heat dissipating fins 15 at the partition position so that the air having high humidity outside the room is removed to the dehumidifying air passage. Prevents leakage.

According to the present embodiment, in the air conditioning such as in the rainy season, in which the temperature needs to be dehumidified only within a comfortable range, dehumidification can be performed while the indoor air temperature is hardly changed. In addition, since the method of directly cooling the surface temperature in the room for air conditioning often does not have a dehumidifying function, it is possible to provide a dehumidifying apparatus suitable for such an air conditioning method.

Another structure of the partition plate will be described with reference to FIGS. 4 to 7. FIG. 4 is an enlarged cross-sectional view showing a configuration of a condenser and a partition plate according to another embodiment of the present invention, and FIGS. 5 to 7 are diagrams of a condenser and a partition plate according to still another embodiment of the present invention, respectively. It is an expanded sectional view which shows a structure. In the figure, the same reference numerals as those in FIG.

The partition plate 9A shown in FIG. 4 has a hole 9a which penetrates the heat transfer pipe 17 of the condenser 3 through which the refrigerant flows to form a single plate. Partition plates 9-1 and 9 shown in FIG.
The reference numeral -2 is divided into an upstream side and a downstream side of the air passage of the condenser 3, and has a two-sheet configuration in which the condenser 3 is sandwiched outside the heat radiation fins 15. Further, the partition plates 9-1 'and 9- shown in FIG.
2'is divided into an upstream side and a downstream side of the air passage of the condenser 3, and has a two-sheet structure in which a heat transfer tube 17 is sandwiched between the heat radiation fins 15 of the condenser 3.

Further, FIG. 7 shows a partition plate 9-
A partition member 16A is provided between the radiation fins 15 at the positions where 1 and 9-2 are present, and has a structure of three or more members.
Even if the partition plate configuration of FIGS. 4 to 7 is used,
The same effect as that of the embodiment can be obtained.

When the dehumidifying device is installed in an air-conditioned room (see FIG. 1), air passages such as ducts are provided at the inlet and outlet of the heat radiation air passage, and when it is installed outdoors. The object can be achieved by providing air passages such as ducts at the inlet and outlet of the dehumidifying air passage, and by installing the ducts through the wall that separates the room from the room. Also, by controlling the operation and stop of this dehumidifying device by using the humidity adjusting means with a humidity detector in front of the evaporator in the room or the dehumidifying air passage, the indoor humidity is automatically maintained within the specified range. can do.

[0020]

As described in detail above, according to the present invention, it is possible to provide a dehumidifying device which dehumidifies the indoor air temperature of an air-conditioned object with almost no change.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing the configuration of a dehumidifying device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a condenser and a partition plate of FIG.

FIG. 3 is a diagram showing a change in the state of air in the dehumidifier.

FIG. 4 is an enlarged cross-sectional view showing a configuration of a condenser and a partition plate according to another embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view showing the configurations of a condenser and a partition plate according to still another embodiment of the present invention.

FIG. 6 is an enlarged cross-sectional view showing the configurations of a condenser and a partition plate according to still another embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view showing the configurations of a condenser and a partition plate according to still another embodiment of the present invention.

[Explanation of symbols]

2 Evaporator 3 Condenser 3a Condenser in dehumidifying air passage 3b Condenser in radiating air passage 4 Compressor 5 Expansion mechanism 7 First blower 8 Second blower 9, 9A, 9-1, 9-2, 9-1 ', 9-2' Partition plate 11,13 Suction port 12,14 Outlet port 15 Radiating fin 17 Heat transfer tube

Claims (4)

[Claims] 1. A dehumidification device comprising a compressor, a condenser, a decompression device, and an evaporator to form a refrigeration cycle, and at least a dehumidifier equipped with a blower that forms an air passage for dehumidifying the air. A first blower that allows a part of the air to pass through, a second blower that allows air to pass through the rest of the condenser, and a partition plate that separates the respective air passages by the first and second blowers. A dehumidifying device characterized by being provided. 2. A dehumidification device comprising a compressor, a condenser, a decompression device, and an evaporator, the refrigeration cycle being provided with a blower for forming an air passage for dehumidifying by the evaporator and heating by the condenser. A partition plate for partitioning the first and second condensers and separating the air passage is provided, and a first blower for passing indoor air to the first condenser partitioned from the evaporator and a partition for outdoor air A second blower to be passed through the second condenser, and a dehumidifying wind passage by the first blower and a heat radiating wind passage by the second blower are configured in one device. Characteristic dehumidifier. 3. The partition plate is installed in the same direction as the direction of the radiator fins of the condenser.
Alternatively, the dehumidifying device according to any one of 2 above. 4. A heat transfer pipe of a condenser through which a refrigerant flows,
The dehumidifying device according to claim 2, wherein the heat transfer pipes are arranged in a direction perpendicular to the surface of the partition plate, and the heat transfer pipes are alternately located in the dehumidifying air passage and the heat radiating air passage. ..