JP2704183B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention <Industrial application field> The present invention relates to an air conditioner, particularly to an improvement in a humidifier in an air conditioner.

<Prior art> Japanese Patent Application Laid-Open No.
These are described in JP-A-1004036 and JP-A-62-175537.

<Problems to be solved by the invention> Among the above two prior arts, the air conditioner described in Japanese Patent Application Laid-Open No. 57-1004036 has a plurality of gas-liquid contact filler units arranged in an air passage. The humidifier has a structure in which the amount of water supplied to each unit is controlled and the humidification capacity is changed over several stages in a stable state, and only the humidity of the air flowing in the air passage can be adjusted, and the same It is not intended to humidify the air with a humidifying device, and the air cannot be heated.

Next, in a humidifying device for an air conditioner described in Japanese Patent Application Laid-Open No. 62-175537, a specific shape having a sufficient distance on a secondary side of a heat exchanger is provided in an air passage (duct) of an air unit. Although a humidifier is provided, the humidifier does not heat and humidify the air flowing in the air path at the same time in the same place in the air path, and there is a feeling of one step in downsizing the indoor unit.

The main object of the present invention is to achieve the object of the prior art by greatly improving the structure of a humidifier so that air heating and humidification can be performed simultaneously in the same place in a single duct. To provide a compact air conditioner to the market.

Still another object is to provide an air conditioner capable of appropriately adjusting the temperature and humidity of air to the market.

B. Configuration of the Invention <Means for Solving the Problems> In order to solve the problems described above, the present invention includes a wet heat exchanger and a dry heat exchanger adjacent to each other in a single duct from an intake port to an outlet port. A humidifier is provided in parallel,
A mixing area for mixing the dry air and the humid air from the heat exchanger is formed in the duct on the secondary side of the humidifier, and the humidifier is of a water spray type, and the dry heat exchanger is provided in an upper stage. However, in the lower stage, the wet heat exchangers are arranged in parallel in a vertical hierarchy and arranged in a single duct, and a sprinkler is provided above the dry heat exchanger, and the wet heat exchanger is provided. The air conditioner is characterized in that a lower water tank is provided below the exchanger.

In order to solve the above problem, in this air conditioner, at least one of the wet heat exchanger and the dry heat exchanger has an air intake port provided with an air volume adjustment damper, and the damper is adjacent to the air inlet. It is preferable that it is a horizontal slide type damper that straddles the air intakes of the different types of heat exchangers and allows the air intake of these air intakes to be changed freely.

In order to solve the above problem, at least one of the wet heat exchanger and the dry heat exchanger in the air conditioner is provided with an air volume adjustment damper at the air intake port, and the dry heat exchanger The damper provided at the air intake of
The damper provided in the air intake of the wet heat exchanger has a lower opening with respect to the air flow direction, and the damper provided at the air intake of the wet heat exchanger has a lower opening with respect to the air flow direction. The feature of being made of an adjustable louver is optimal for adjusting the temperature and humidity.

In order to solve the above problem, an air stirring device may be provided in the mixing area of the air conditioner.

<Operation> The operation of the invention configured as described above will be described below.

<Case of Heating> In the specific invention, the cool air sucked into the duct from the intake port by the action of the blower provided in the single duct receives the following action while passing through the humidifier.

That is, a part of the cool air is taken into the air passage of the dry heat exchanger from the air intake. On the other hand, hot water is supplied to the liquid flow passage of the dry heat exchanger, and the supplied hot water flows through the liquid flow passage separated from the air passage and the partition by an air passage through the partition. Warm the cold air flowing through the indirect humidity. In this way, while passing through the dry heat exchanger, the cold air becomes air heated at a constant humidity and is blown out from the outlet.

In a wet heat exchanger juxtaposed to this dry heat exchanger, cold air comes into direct contact with hot water to evaporate a portion of the hot water by the latent heat of vaporization, cool the hot water, and increase the temperature of the hot water and its humidity. And becomes humid air and blows out from the outlet of the wet heat exchanger.

The blown dry air and humid air are mixed in a common (identical) mixing area, and the humidity,
It is discharged into the room as a stream of air at a temperature through the outlet of a single duct.

Further, since the different types of heat exchangers are arranged side by side in the single duct in the upper and lower layers as a lower stage of the wet heat exchanger, and the dry heat exchanger is arranged in the upper stage, the sprinkler is moved onto the dry heat exchanger. The hot water is supplied, and the fluid that indirectly heats the cold air passing through the dry heat exchanger in the same manner as described above is allowed to flow down to the entire area of the lower wet heat exchanger in a state where the temperature is lowered, and this wet heat exchange is performed. A wet wall is formed on the surface of the vessel, and a part of the cool air passing through the wet heat exchanger is brought into direct contact with the latent heat of vaporization to lower the temperature, and a part of the cool air is heated, Its humidity is increased. Thereafter, the fluid is temporarily collected in the lower water tank, sent to the heater and heated, turned into hot water, sent again to the sprinkler, and circulated.

The upstream dry air and the downstream wet air blown out from the outlets of the dry heat exchanger and the wet heat exchanger are mixed up and down in this mixing area and are discharged from the discharge port.

In the invention in which an air stirring device is provided in the mixing area as necessary, the dry air and the humid air are forcibly mixed by stirring,
The air is discharged from the discharge port as air with appropriate temperature and humidity.

When performing cooling, cold water is used instead of the hot water, and the temperature and humidity of the warmed air sent from the intake port to the humidifier are adjusted.

Next, at least one of the wet heat exchanger and the dry heat exchanger has an air intake provided with an air volume adjusting damper, and the damper is provided with an air intake of an adjacent different heat exchanger. The present invention is characterized in that it is a horizontal slide type damper that can freely change the air intake amount of these air intakes, and operates as follows in addition to the effect of the specific invention.

That is, by changing the position of the damper, in the case of heating, the amount of air taken into the parallel wet heat exchanger or dry heat exchanger is changed, and the temperature and humidity of the air discharged from the discharge port are changed. Adjust according to the indoor weather environment.

For example, when discharging air with a higher temperature,
If you want to increase the amount of air taken into the dry heat exchanger to that of the wet heat exchanger and, on the other hand, maintain the room at a 70% higher humidity, use the wet heat exchanger. Increase the amount of air taken in.

By sliding this damper horizontally, the opening area of the air intake ports of adjacent different heat exchangers can be changed at the same time, and the proportion of the amount of air taken into different heat exchangers can be adjusted. Adjust air temperature and humidity simultaneously.

For example, when increasing the temperature and suppressing the humidification temperature, reduce the amount of air taken into the wet heat exchanger, increase the amount of air taken into the dry heat exchanger, and increase the humidity. When the temperature is lowered, the amount of air taken into the wet heat exchanger is increased, and the amount of air taken into the dry heat exchanger is reduced.

At this time, the width dimension of the horizontal slide damper is a dimension that does not completely seal the air intake port of one of the heat exchangers at the stroke end of the damper, that is, the cold air is always diverted to both the dry and wet heat exchangers. As dimensions.

Of the wet heat exchanger and the dry heat exchanger, at least one of the air intakes is provided with a damper for air volume adjustment, and the damper provided at the air intake of the dry heat exchanger is:
The damper provided in the air intake of the wet heat exchanger has a lower opening with respect to the air flow direction, and the damper provided at the air intake of the wet heat exchanger has a lower opening with respect to the air flow direction. In the invention characterized by comprising an adjustable louver, by changing the inclination angle of the louver of the upper dry heat exchanger, by adjusting the amount of cold air taken into the dry heat exchanger, the amount of cool air can be reduced. By adjusting the heating temperature, adjusting the temperature of the dry air blown out from the outlet, and changing the inclination angle of the louver of the lower wet heat exchanger, the amount of cold air taken into the wet heat exchanger is adjusted. Humidification of humid air, humidification control.

The mixed airflow whose temperature and humidity have been adjusted in this way is discharged into the room from the discharge port.

When adjusting the temperature and keeping the humidity unchanged, the inclination angle of only the louver of the dry heat exchanger is changed.

Conversely, when the humidity is adjusted by humidification and the temperature is maintained, the inclination angle of only the louvers of the wet heat exchanger is changed.

In the louver state in which the inclination angle is set in this manner, a part of the cool air flows into the air passage of the upper dry heat exchanger from the gap between the lower louvers on the downstream side, and the dry air blows out from the outlet. The air tends to drift downward, and the remainder of the cool air flows through the gap between the louvers, where the downstream side is higher, flows into the lower wet heat exchanger, and the humid air blown out from its outlet has a tendency to drift upward. take. As a result, the upper and lower dry air and the humid air collide with each other while reaching the discharge port, and are mixed.

<Example> Next, a typical example of the present invention will be described.

First Embodiment This embodiment is a typical embodiment of the first aspect of the present invention.

In FIG. 1, A is an air conditioner, and its duct 10 is provided with an inlet 10a and an outlet 10b. In this single duct 10, a wet heat exchanger 11 and a dry heat exchanger
A humidifier 13 is provided adjacent to and parallel to the humidifier 13, and the heat exchanger
Mixing area for mixing dry and moist air from 11 and 12
14 are formed.

The humidifier 13 is of a water spray type, the dry heat exchanger 12 is arranged in the upper stage, and the wet heat exchanger 11 is arranged in the lower stage in parallel in the upper and lower layers and arranged in the single duct 10. A water spray tank 15 which is a type of water spray device is provided above the dry heat exchanger 12, and a lower water tank 16 is provided below the wet heat exchanger 11.

Second Embodiment This embodiment is a typical embodiment of the present invention.

The difference from the first embodiment is that the air intake ports 20, 21 of the wet heat exchanger 11 and the dry heat exchanger 12 are provided with air volume adjusting dampers 22, 23.

A damper provided at the air intake 21 of the dry heat exchanger 12
22 comprises a louver 22a whose opening degree is adjustable with the downstream side being lower than the air flow direction, and a damper 23 provided at the air intake 20 of the wet heat exchanger 11 is provided with a damper 23 with respect to this air flow direction. A louver 23 whose opening and closing degree can be freely adjusted is provided on the downstream side (see FIG. 2).

In FIG. 2, a watering tank is used as the watering device.
Instead of 15, a spray header 15a is provided.

In the case of the arrangement disclosed in FIG. 3 (corresponding to an exemplary embodiment of the invention as claimed in claim 2), the damper straddles the air inlets 21 and 22 of the adjacent heat exchangers, A horizontal slide damper 22b that allows the air intake amount of the air intake ports 21 and 22 to be freely changed is provided.

The dampers 22, 23, and 22b may be configured to adjust the degree of opening and closing based on detection signals of a room temperature and humidity detector (not shown).

The mixing area 14 may be provided with an air stirring device (not shown).

In addition, the room temperature and humidity detector 24
In some cases, the amount of water spray is adjusted in accordance with the detection signal of the above (see FIG. 4).

In each embodiment, the dry heat exchanger 12 has an air passage 25 through which air flows in the horizontal direction, and a liquid downflow passage 26 formed between the air passages 25 and through which circulating cooling water flows downward. 25 and 26 are partitioned by a partition plate 27 made of synthetic resin, and a liquid supply part 28 opened in the duct 10 is formed on the upstream side of the liquid flow-down passage 26, and the liquid flow-down passage
A discharge unit 29 that is open to the outside is also provided on the downstream side of 26,
Most of the width of the liquid flowing passage 26 is a flowing liquid slowing portion 30 (see FIGS. 2 and 5).

<Operation of the First Embodiment><Case of Heating> The operation of the blower F provided in the single duct 10 causes the intake port thereof to operate.
The cool air sucked into the duct 10 from 10a is subjected to the following action while passing through the humidifier 13.

That is, of the cool air, it is taken into the air passage of the dry heat exchanger from its air intake. On the other hand, the hot water supplied from the water spray tank 15 to the liquid flow-down passage 26 of the dry heat exchanger 12 flows down the liquid flow-down passage 26 separated from the air passage 25 through the partition plate 27. The air flowing through the air passage 25 is indirectly warmed as the humidity. In this way, while passing through the dry heat exchanger 12, the cold air becomes heated at a constant humidity and blows out from the outlet 31.

In the wet heat exchanger 11 at the lower stage of the dry heat exchanger 12, the cold air comes into direct contact with the liquid flowing down from the dry heat exchanger 12 and a part of the liquid is evaporated by the latent heat of vaporization to cool the liquid. At the same time, the temperature rises and the humidity is increased, and the air itself becomes humid air and blows out from the outlet 32 of the wet heat exchanger 11.

The blown dry air above and the humid air below are mixed in the shared (identical) mixing area 14 and become an airflow of humidity and temperature suitable for indoor air conditioning, and are discharged from the outlet 10 b of the single duct 10. Discharged indoors.

Thereafter, the fluid is temporarily collected in the lower water tank 16, sent to the heater H or a refrigerator, heated, turned into warm water, sent again to the water spray tank 15, and circulated.

The dry heat exchanger 12 and the wet heat exchanger 11 are alternately orthogonal to the air flow in the duct 10 in the width direction of the duct 10,
In FIG. 2, which is arranged adjacently and in parallel,
The dry air and the humid air are discharged from the discharge ports 10 and 32 into the room while being mixed in the mixing area 14 while being blown out from the discharge ports 31 and 32 while being adjacent to each other in the width direction of the duct 10.

If an air stirring device is provided in the mixing area 14 as necessary,
The dry air and the humid air are forcibly mixed and agitated, and become air having appropriate temperature and humidity, and are discharged from the discharge port 10b.

When performing cooling, cold water is used instead of the hot water, and the temperature and humidity of the warmed air sent to the humidifier 13 from the intake port 10a are adjusted.

<Operation of the Second Embodiment> In addition to the operation of the first embodiment, the dampers 22 and 23 operate as follows.

By changing the inclination angles of the louvers 22a, 23a of the dampers 22, 23, the amount of air taken into the parallel wet heat exchanger 11 or dry heat exchanger 12 is changed, and the temperature of the air discharged from the discharge port 10b is changed. Adjust the humidity according to the indoor weather environment.

For example, when discharging air with a higher temperature,
In the case where the amount of air taken into the dry heat exchanger 12 is larger than that of the wet heat exchanger 11 and the inside of the room is maintained at a condition where the humidity is increased by 70%, the wet heat exchanger is used. Increase the intake of air into 11

When adjusting the temperature and keeping the humidity unchanged, the inclination angle of only the louver 23a of the dry heat exchanger 12 is changed.

Conversely, when the humidity is adjusted by humidification and the temperature is maintained as it is, the inclination angle of only the louver 23a of the wet heat exchanger 11 is changed.

In the louvers 22a and 23a with the inclination angles set in this way, part of the cool air flows into the air passage of the upper-stage dry heat exchanger 12 through the gap between the lower louvers 23a on the downstream side,
The dry air blown out from the outlet 31 tends to drift downward, and the rest of the cool air has a higher louver 23a on the downstream side.
The humid air flowing into the lower wet heat exchanger 11 through the gap between them and flowing out from the outlet 32 thereof tends to drift upward. As a result, the upper and lower dry air and the humid air collide with each other while reaching the discharge port 10b and are mixed.

A horizontal slide type damper 22b which straddles the air intakes 20, 21 of the adjacent different heat exchangers 11, 12 shown in FIG. 4 and allows the air intake of these air intakes 20, 21 to be changed freely. In the case where the heat exchangers 11 are different from each other, the dampers 22b are slid horizontally to change the opening areas of the adjacent air inlets 20 and 21 of the different heat exchangers 11 and 12 simultaneously. The temperature and humidity of the air are simultaneously adjusted by adjusting the ratio of the amount of air taken into the,.

If necessary, the degree of opening and closing of the dampers 22, 23 can be adjusted to the room temperature,
It is desirable in a clinic or the like to make adjustments based on the detection signal of the humidity detector and always maintain the indoor environment in a comfortable state of life throughout the four seasons.

In FIG. 5, the detection signal of the room temperature / humidity detector 24 is used for controlling the amount of sprinkling of the sprinkler 15, and the humidifier 13 is operated in conjunction with the control of the rotating water of the blower F to perform dry heat exchange. The temperature and humidity of the air discharged from the outlet 10b into the room by adjusting the temperature of the dry air and the humidity of the humid air by adjusting the air inflow and the amount of water spray into the heat exchanger 12 and the wet heat exchanger 11 To change.

C. Effects of the Invention The effects of the invention configured and operated as described above are as follows.

In the specific invention, a humidifier in which a wet heat exchanger and a dry heat exchanger are adjacently arranged in parallel is provided in a single duct extending from the intake port to the discharge port, and a humidifier on the secondary side of the humidifier is provided. Since a mixing area for mixing the dry air and the humid air from the heat exchanger is formed in the duct, warming and humidification of cold air or warm air sucked from an intake port of the duct are provided. Can be performed simultaneously in the same place in a single duct, the duct can be shortened, the whole air conditioner can be downsized, and cooling and heating can be performed appropriately.

The humidifier is of a water spray type, the dry heat exchanger is arranged in an upper stage, and the wet heat exchanger is arranged in a vertical duct in a lower stage in a single duct. Since the upper water sprinkling device of the heat exchanger is provided, and the lower water tank is provided below the wet heat exchanger, cold air can be heated and humidified with hot water to perform desired heating and use cold water. The same device can be used to cool and cool the warm air, and a single duct can be used effectively.

In the invention according to claim 2, since at least one of the wet heat exchanger and the dry heat exchanger is provided with a damper for adjusting the air volume, the air intake opening is provided. By adjusting the degree of opening and closing, the amount of air taken into the dry and humidity heat exchangers can be adjusted, and the temperature or humidity of the air can be adjusted in parallel at the same place as appropriate, making the indoor temperature and humidity suitable for daily life. Can be adjusted. In particular, since the damper is a horizontal slide type damper that straddles the air intakes of adjacent heat exchangers of different types and allows the air intake amount of these air intakes to be changed freely, in addition to the effects described above, The opening / closing degree of the damper can be easily adjusted, the ratio of the amount of cold air or warm air taken into the dry heat exchanger and the wet heat exchanger can be changed by this damper, and the air humidity and humidity can be changed and adjusted simultaneously. .

In the invention according to claim 3, the humidifying device is of a water spray type, and the dry heat exchanger is arranged in an upper stage, and the wet heat exchanger is arranged in parallel in a lower stage in a single duct. It is characterized by the fact that a water sprinkling device is provided above the dry heat exchanger and a lower water tank is provided below the wet heat exchanger. Heating and humidification can be independently and appropriately performed by adjusting the inclination angle of the corresponding louvers, and the dry air and the humid air that are taken in between the louvers and exchanged heat are easily mixed in the mixing area. There is an effect that can be deflected.

In the invention in which the air stirring device is provided in the mixing area in the previous period,
Dry air and moist air can be mixed more reliably.

In the invention in which the water spray device for adjusting the water spray amount according to the detection signal of the room temperature and humidity detector is provided as the water spray device for the dry heat exchanger and the wet heat exchanger, the opening and closing adjustment of the damper is not required. In addition, warming and humidification of cold air and warm air can be performed.

(Effect peculiar to the embodiment) An air passage through which the dry heat exchanger 12 flows air in a horizontal direction.
25, and a fluid flow-down passage 26 between the air passages 25. These two passages 25, 26 are separated by a partition plate 27 made of a synthetic resin. An open liquid supply part 28 is formed, and the liquid
The dry heat exchanger 12 is characterized in that a discharge part 29 which is open to the outside is also provided on the downstream side of the dry heat exchanger 12, and most of the width of the liquid flow-down passage 26 is a liquid slow part 30. The hot water or cold water that has been discharged can flow down from the supply unit 28 by gravity through the flowing liquid slow speed unit 30 of the liquid flowing down passage 26 sequentially, and is discharged from the discharge unit 29 to the outside, on the lower wet heat exchanger 11. Since the supply unit 28 and the discharge unit 29 are both open to the outside, hot or cold water can be supplied into the dry heat exchanger 12 without using any special power.

[Brief description of the drawings]

1 is a schematic view of a first embodiment, FIG. 2 is a schematic view of a second embodiment, and FIG. 3 is a dry heat exchanger and wet heat exchange different from those of FIG. FIG. 4 is a schematic view of another embodiment, and FIG. 5 is a partial vertical front view of a dry heat exchanger. Description of main symbols in the figure 11: wet heat exchanger, 12: dry heat exchanger, 13: humidifier.

Continuation of the front page (56) References Japanese Utility Model Showa 49-48758 (JP, U) Japanese Utility Model Showa 52-74663 (JP, U) Japanese Utility Model Showa 45-13985 (JP, Y1)

Claims (4)

(57) [Claims] In a single duct from an intake port to a discharge port,
A wet heat exchanger and a humidifier comprising a dry heat exchanger adjacent to and parallel to each other are provided. In the duct on the secondary side of the humidifier, dry air and humid air from the heat exchanger are supplied. A mixing region for mixing is formed, the humidifying device is of a sprinkling type, the dry heat exchanger is disposed in an upper stage, and the wet heat exchanger is disposed in a lower stage in parallel in upper and lower layers, and a single duct is provided. An air conditioner, wherein a water spray device is provided above the dry heat exchanger, and a lower water tank is provided below the wet heat exchanger. 2. An air intake adjusting damper is provided at at least one of the air intakes of the wet heat exchanger and the dry heat exchanger, and the damper is provided with an air intake of an adjacent different type of heat exchanger. 2. The air conditioner according to claim 1, wherein the air conditioner is a horizontal slide type damper that straddles the inlet and allows the air intake amount of the air inlet to be freely changed. 3. The air intake of at least one of the wet heat exchanger and the dry heat exchanger is provided with a damper for adjusting an air volume, and the air intake is provided at the air intake of the dry heat exchanger. The damper is composed of a louver that is adjustable in opening and closing degree with the downstream side being lower in the air flow direction. 2. The air conditioner according to claim 1, wherein the air conditioner comprises a louver whose opening degree can be freely adjusted. 4. An air conditioner according to claim 1, wherein an air agitator is provided in said mixing area.