JP2002061894A - Dehumidifying air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidifying air conditioner having high heating and cooling effects. SOLUTION: The dehumidifying air conditioner comprises a humidifying cooler 8 for humidifying and cooling air from an interior, a sensible heat exchanging rotor 4 for performing a sensible heat exchange between the humidified and cooled air from the interior and air to be supplied to the interior, a heater 10 for heating the air from the interior after the sensible heat exchange and a dehumidifying rotor 2 detached by the air heated by the heater 10. Outside air dehumidified by the dehumidifying rotor 2 is supplied to the interior through the sensible heat exchanging rotor 4. As motors for rotating and driving the dehumidifying rotor, a high-speed motor 19 and a low-speed motor 16 can be switched.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying air conditioner for producing dry air by using a dehumidifying rotor during cooling, supplying the dried air to a room, and transmitting heat from a heater to indoor supply air during heating. It is about.

[0002]

2. Description of the Related Art A dehumidifying air conditioner does not use chlorofluorocarbon and uses heat as a driving energy source, so it can use various kinds of energy such as gas combustion heat, exhaust heat or solar heat, thereby reducing carbon dioxide emissions. It has many features, such as being able to suppress power peaks in summer.

FIGS. 4 and 5 show a conventional dehumidifying air conditioner.
It is explained along. Reference numeral 1 denotes a blower that sends air to an adsorption zone 3 of a dehumidifying rotor 2. As a result, the air increases in temperature and becomes dry air. Here, the dehumidifying rotor 2 is made by supporting a hygroscopic agent such as silica gel or zeolite on paper formed in a honeycomb (honeycomb) shape.
The motor 13 is driven to rotate via the belt 12.

[0004] The air leaving the adsorption zone 3 of the dehumidifying rotor 2 passes through the heat absorption zone 5 of the sensible heat exchange rotor 4, thereby lowering the temperature of the dry air. Here, the sensible heat exchange rotor 4 is formed of an aluminum foil or a synthetic resin film formed in a honeycomb shape.
Is driven to rotate via the belt 15. Here, FIG. 5 is a perspective view of the dehumidification rotor 2 and the sensible heat exchange rotor 4. Since the dehumidification rotor 2 and the sensible heat exchange rotor 4 have exactly the same shape as each other, they are also used in the same FIG. 5. .

[0005] The dry air exiting the heat absorbing zone 5 of the sensible heat exchange rotor 4 enters a humidifying cooler 6. The humidifying cooler 6 sprays water on the air passing therethrough, and cools the air by heat of vaporization of the water. After exiting the humidifying cooler 6, the air whose temperature has further decreased is supplied to the room.

The air in the room is sucked by the blower 7,
First, it enters the humidifying cooler 8. Since the indoor air generally does not have a relative humidity of 100%, the water is vaporized and cooled by the humidifying cooler 8.

[0007] The air cooled by the humidifying cooler 8 passes through the heating zone 9 of the sensible heat exchange rotor 4, lowers the temperature of the sensible heat exchange rotor 4, increases the temperature, and enters the heater 10. The heater 10 is a gas burner that burns combustible gas such as natural gas or propane gas, or a radiator through which hot water flows.

The air heated by the heater 10 is
The moisture adsorbed by the desiccant of the dehumidifying rotor 2 passes through the desorption zone 11 of the dehumidifying rotor 2, and is released to the atmosphere by the blower 7.

In winter, the power supply to the motor 14 is stopped to stop the rotation of the sensible heat exchange rotor 4, and the operation of the humidifying cooler 6 and the humidifying cooler 8 is stopped. Also motor 1
3 and the rotation of the dehumidifying rotor 2 is continued. As a result, the dehumidifying rotor 2 exhibits a total heat exchange function.

That is, even if the indoor air passes through the humidifying cooler 8 and the heating zone 9 of the sensible heat exchange rotor 4 in winter, the air condition is not changed at all because both of them are not operating. To rise.

The air whose temperature has been raised by the heater 10 raises the temperature of the dehumidifying rotor 2, and since this air comes from the room, the absolute humidity is high, and moisture is given to the dehumidifying rotor 2.

The outside air taken in by the blower 1 passes through the dehumidifying rotor 2 and removes heat from the dehumidifying rotor 2 to increase the temperature. At the same time, moisture is given from the dehumidifying rotor 2 to increase the absolute humidity.

The air whose temperature and absolute humidity have risen pass through the sensible heat exchange rotor 4 and the humidifying cooler 6, but since both are not operating, the air condition is not changed at all and the high temperature and high humidity air condition is maintained. Supplied indoors.

[0014]

The dehumidifying air conditioner described above can exhibit high cooling efficiency during the cooling operation in summer, but the heat generated by the heater 10 during the heating operation in winter. Is transmitted through the dehumidifying rotor 2 to the outside air taken into the room, and there is a problem that the total heat exchange efficiency by the dehumidifying rotor 2 is low. In other words, the rotation speed of the dehumidification rotor is about 30 times / hour in order to sufficiently exert the dehumidification performance of the dehumidification rotor, but the rotation speed of the dehumidification rotor is 16 in order to exert the function of total heat exchange with the dehumidification rotor. The number of rotations is about 30 times / minute, and the number of rotations differs by about 30 times. On the other hand, there is a problem that the heating effect is low because the rotation speed is set to emphasize the dehumidifying performance in order to secure the cooling performance. The present invention has been made to solve the above problems, and has as its object to provide a dehumidifying air conditioner having a high heating effect as well as a cooling effect.

[0015]

In order to solve the above problems, the present invention comprises a dehumidifying rotor which is desorbed by air heated by a heater so that the dehumidifying rotor can be sufficiently desorbed by the heater during a cooling operation. It has a low-speed motor that rotates the dehumidification rotor at low speed, and a high-speed motor that rotates the dehumidification rotor at high speed so that the dehumidification rotor can exchange total heat efficiently during heating operation, and selectively dehumidifies the low-speed motor and high-speed motor. Switching means connected to the rotor is provided.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a humidifying cooling means for humidifying and cooling air from a room, and a humidifying and cooling means for supplying air to the room from the humidified and cooled air from the room. A sensible heat exchange means for sensible heat exchange, a heater for heating air from the room after the sensible heat exchange, a dehumidifying rotor desorbed by the air heated by the heater, and a low-speed rotation suitable for dehumidifying operation of the dehumidifying rotor. It has a low-speed motor and a high-speed motor that performs high-speed rotation suitable for the total heat exchange operation of the dehumidifying rotor. During cooling operation, the dehumidifying rotor is rotated at low speed and the outside air dehumidified by the dehumidifying rotor is indoors through the sensible heat exchange means. During the heating operation, the dehumidifying rotor is rotated at a high speed, and the heat of the heater is entirely exchanged by the dehumidifying rotor to be supplied indoors. It has the effect that to vary the rotational speed of the dehumidification rotor at the time of rolling and the heating operation.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a dehumidifying air conditioner according to the present invention will be described below in detail with reference to FIG. Here, blower 1,
Dehumidification rotor 2, adsorption zone 3, sensible heat exchange rotor 4,
The heat absorbing zone 5, the humidifying cooler 6, the blower 7, the humidifying cooler 8, the heating zone 9, the heater 10, the desorption zone 11, the belt 12, the motor 13, and the belt 15 are shown in FIG. This is the same as that described above, and redundant description is omitted to avoid redundancy.

1 to 3, reference numeral 16 denotes a low-speed motor, which is connected to a first one-way clutch 18 via a belt 17. Reference numeral 19 denotes a high-speed motor, and a belt 20
Through the second one-way clutch 21. The first one-way clutch 18 and the second one-way clutch 21 are mounted on a common shaft 22. Shaft 2
A pulley 23 is attached to 2, and a belt 15 is hung on the pulley 23.

As shown in FIG. 3, the first one-way clutch 18 and the second one-way clutch 21 are engaged when a driving force is applied to the shaft 22 in the same arrow A direction, and the shaft 22 is moved in the arrow A direction. Is driven to rotate. Conversely, when a driving force is applied in the same arrow B direction, the clutch is released and the first one-way clutch 18 or the second
Only the one-way clutch 21 rotates, and no driving force is transmitted to the intermediate shaft 22. When the low-speed motor 16 and the high-speed motor 19 are energized, they rotate to drive the first one-way clutch 18 and the second one-way clutch 21 in the direction of arrow A, respectively.

The dehumidifying air conditioner of the present invention is configured as described above, and its operation will be described below. First, the cooling mode in summer will be described.

The blowers 1 and 7 are activated, and then a heater 10 such as a gas burner is ignited to send water to the humidifying coolers 6 and 8. For the dehumidifying rotor 2, the low-speed motor 1
Only 6 is energized. Then, the first one-way clutch 18 receives a driving force in the direction of arrow A, and the clutch engages to drive the intermediate shaft 22. The rotation of the intermediate shaft 22 rotates the pulley 23, and the dehumidification rotor 2 rotates via the belt 15. At this time, since the high-speed motor 19 is not energized, no driving force is generated, and the second one-way clutch 21
Remains stopped. That is, the second one-way clutch 21
Is in the same state as rotated in the direction of arrow B relative to the intermediate shaft 22, and the clutch is released.

The sensible heat exchange rotor 4 is driven to rotate via the belt 12 by energizing the motor 13.
Then, the outside air is sucked into the blower 1 and enters the blower 1, is pushed out by the blower 1 and enters the adsorption zone 3 of the dehumidifying rotor 2.

Here, the humidity of the outside air is adsorbed by the dehumidifying rotor 2 to become dry air, and the temperature rises due to the heat of adsorption. The heated dry air enters the heat absorbing zone 5 of the sensible heat exchange rotor 4. Here, the dry air gives its sensible heat to the sensible heat exchange rotor 4, and the temperature falls.

The dry air exiting the heat absorbing zone 5 of the sensible heat exchange rotor 4 cools down to near room temperature and enters the humidifying cooler 6. Here, the dried air is humidified to just the right humidity for the human body, and the temperature of the air is reduced by the heat of vaporization of the water.

The indoor air enters the humidification cooler 8 by suction of the blower 7 and is humidified until the relative humidity becomes close to 100%, and is cooled by the heat of vaporization of the water at that time to become low-temperature and high-humidity air. The low-temperature and high-humidity air enters the heating zone 9 of the sensible heat exchange rotor 4 and removes the sensible heat of the sensible heat exchange rotor 4 to increase the temperature and cool the sensible heat exchange rotor 4.

Since the temperature of the low-temperature and high-humidity air increases, the relative humidity decreases, and the temperature further increases by the heater 10 to become high-temperature air. This high-temperature air passes through the desorption zone 11 of the dehumidification rotor 2 and desorbs moisture contained in the dehumidification rotor 2. The hot and humid air exiting the desorption zone 11 of the dehumidifying rotor 2 passes through the blower 7 and is released to the atmosphere.

Next, the winter heating mode will be described. The blowers 1 and 7 are started, and the heater 10 such as a gas burner is ignited. The rotation of the sensible heat exchange rotor 4 is also stopped. For the dehumidifying rotor 2, the low-speed motor 16 is not energized, and only the high-speed motor 19 is energized.
Then, the second one-way clutch 21 is engaged, and the intermediate shaft 22 rotates at a high speed by the rotational driving force of the high-speed motor 19. At this time, since the low speed motor 16 is not rotating, the first one-way clutch 18 is released. That is, the dehumidifying rotor 2 rotates at a higher rotation speed than in the summer mode.

Then, the outside air, which is low-temperature dry air, is blower 1
And is pushed out by the blower 1 and enters the adsorption zone 3 of the dehumidifying rotor 2.

At this time, although the heater 10 is operating,
Since the rotation of the dehumidification rotor 2 is fast, the dehumidification rotor 2 is hardly desorbed and contains a large amount of moisture. Therefore, the air entering the adsorption zone 3 of the dehumidifying rotor 2 is
The heat and humidity are given to the sensible heat exchange rotor and the air enters the heat absorption zone 5 of the sensible heat exchange rotor. Since the sensible heat exchange rotor 5 is not rotating, no heat exchange operation is performed, and the air condition does not change here.

The high-temperature and high-humidity air that has exited the heat-absorbing zone 5 of the sensible heat exchange rotor 4 passes through the humidification cooler 6, but the humidification cooler 6 is not operated. You.

The air from the room passes through the humidifying cooler 8 and the heating zone 9 of the sensible heat exchange rotor 4, but none of them is operating.
Heated by zero. Here, if the heater 10 is a gas burner, it also gives moisture to the air.

The hot and humid air passes through the desorption zone 11 of the dehumidifying rotor 2. At this time, since the dehumidifying rotor 2 is rotating at a high speed, the temperature rises in the desorption zone 11 but does not rise to the desorption temperature, and the dehumidification rotor 2 is not desorbed but absorbs moisture. The air whose temperature has dropped and has been dehumidified passes through the blower 7 and is discharged into the atmosphere.

FIG. 4 is a partial front view showing a second embodiment of the present invention. In FIG. 4, one belt 15 is hung between the first one-way clutch 18, the second one-way clutch 21 and the dehumidifying rotor 2. The second embodiment differs from the first embodiment only in the driving means from the first one-way clutch 18 and the second one-way clutch 21 to the dehumidifying rotor 2, and other configurations are the same as those of the first embodiment. Is exactly the same as This embodiment can simplify the configuration as compared with the first embodiment, and is suitable for a small device.

FIG. 5 is a partial front view showing a third embodiment of the present invention. FIG. 5 shows that the first one-way clutch 18 and the second one-way clutch 21 are connected to the dehumidifying rotor 2.
And a belt 15 is hung between the first one-way clutch 18 and the dehumidifying rotor 2, and a second belt 22 is hung between the second one-way clutch 21 and the dehumidifying rotor 2. ing.

In the third embodiment, the first one-way clutch 18 and the second one-way clutch 21
Only the driving means leading to is different from that of the first embodiment,
Other configurations are exactly the same as those of the first embodiment. The structure of the third embodiment is simpler than that of the first embodiment, but is suitable for a medium-sized device because the dehumidifying rotor 2 is driven by two belts.

FIG. 6 is a partial front view showing a fourth embodiment of the present invention. FIG. 6 shows that the first one-way clutch 18 and the second one-way clutch 21 are mutually connected to the dehumidifying rotor 2.
, And one belt 15 is hung between the first one-way clutch 18 and the second one-way clutch 21 and the dehumidifying rotor 2. The fourth embodiment differs from the first embodiment only in the driving means from the first one-way clutch 18 and the second one-way clutch 21 to the dehumidifying rotor 2, and the other structure is the same as that of the first embodiment. Is exactly the same as

Although the structure of the fourth embodiment is as simple as that of the second embodiment, the first one-way clutch 18 and the second one-way clutch 2 are provided on both sides of the dehumidifying rotor 2.
The arrangement of 1 is suitable for a case where it is inconvenient if two motors are arranged on one side according to the design.

In all of the above embodiments, the example in which the dehumidifying rotor 2 and the sensible heat exchanging rotor 4 are driven by using a belt has been described, but the same effect can be expected by using a chain instead of a belt.

[0039]

As described above, the dehumidifying air-conditioning apparatus of the present invention can be used for both cooling and heating. In particular, since the dehumidifying air conditioner of the present invention has two motors for driving the dehumidifying rotor, one for low speed and one for high speed, it is possible to greatly change the rotation speed of the dehumidifying rotor between cooling and heating. In addition, when the dehumidification rotor performs the dehumidification operation or the total heat exchange operation, the rotation speed can be set to the most efficient rotation speed.

Further, in the dehumidifying air conditioner of the present invention, since the low-speed motor and the high-speed motor are connected to the dehumidifying rotor via the one-way clutch as described above, the high-speed motor is disconnected while the low-speed motor is operating. The low speed motor is disconnected while the high speed motor is running. Therefore, the motor that is not operating does not become a load on the motor that is operating.

When a combustion device such as a gas burner is used for the heater, the water generated by the combustion of the fuel is also supplied to the room without waste and the room is humidified.

[Brief description of the drawings]

FIG. 1 is a flowchart showing an embodiment of a dehumidifying air conditioner of the present invention.

FIG. 2 is a perspective view of a dehumidifying rotor and its driving means of the dehumidifying air conditioner of the present invention.

FIG. 3 is a perspective view of a one-way clutch of the dehumidifying air conditioner of the present invention.

FIG. 4 is a partial front view of a second embodiment of the dehumidifying air conditioner of the present invention.

FIG. 5 is a partial front view of a third embodiment of the dehumidifying air conditioner of the present invention.

FIG. 6 is a partial front view of a dehumidifying air conditioner according to a fourth embodiment of the present invention.

FIG. 7 is a flowchart showing an example of a conventional dehumidifying air conditioner.

FIG. 8 is a perspective view of a dehumidifying rotor or a sensible heat exchange rotor of a conventional dehumidifying air conditioner and a driving means thereof.

[Explanation of symbols]

 Reference Signs List 1 blower 2 dehumidifying rotor 3 adsorption zone 4 sensible heat exchange rotor 5 heat absorbing zone 6 humidifying cooler 7 blower 8 humidifying cooler 9 heating zone 10 heater 11 desorption zone 12, 15, 20 belt 13 motor 16 low speed motor 17 belt 18 first One-way clutch 19 High-speed motor 21 Second one-way clutch 22 Intermediate shaft 23 Pulley

Claims (7)

[Claims] 1. A humidifying cooling means for humidifying and cooling air from a room, a sensible heat exchanging means for sensible heat exchange between humidified and cooled air from the room and air supplied to the room, A heater for heating air from the room, a dehumidifying rotor desorbed by the air heated by the heater, and a sensible heat exchange between the outside air dehumidified by the dehumidifying rotor by rotating the dehumidifying rotor at a low speed during a cooling operation. A dehumidifying air conditioner, wherein the air is sent to the room through the means, and during the heating operation, the dehumidifying rotor is rotated at a high speed, and the heat of the heater is entirely exchanged by the dehumidifying rotor and supplied to the room. . 2. A humidifying and cooling means for humidifying and cooling air from a room, a sensible heat exchanging means for exchanging sensible heat between the humidified and cooled air from the room and air supplied to the room, A heater that heats air from the room, a dehumidifying rotor that is desorbed by the air heated by the heater, a low-speed motor that performs low-speed rotation suitable for the dehumidifying operation of the dehumidifying rotor, and a total heat exchange operation of the dehumidifying rotor. A high-speed rotation motor that performs high-speed rotation suitable for the air conditioner, whereby during cooling operation, the dehumidification rotor is rotated at a low speed and the outside air dehumidified by the dehumidification rotor is sent indoors via the sensible heat exchange means. At the same time, during the heating operation, the dehumidifying rotor is rotated at a high speed, and the heat of the heater is entirely exchanged by the dehumidifying rotor to be supplied indoors. And the dehumidifying air-conditioning apparatus. 3. The dehumidifying air conditioner according to claim 2, wherein the low-speed motor and the high-speed motor are respectively connected to the dehumidifying rotor via one-way clutches. 4. The dehumidifying air conditioner according to claim 3, wherein the one-way clutch of each of the low-speed motor and the high-speed motor is connected to a common intermediate shaft, and the dehumidifying rotor is driven via the intermediate shaft. 5. The dehumidifying air-conditioning apparatus according to claim 3, wherein the one-way clutch of each of the low-speed motor and the high-speed motor drives the dehumidifying rotor via one belt or chain. 6. The dehumidifying air conditioner according to claim 3, wherein the one-way clutch of each of the low-speed motor and the high-speed motor drives the dehumidifying rotor through a respective belt or chain. 7. A low-speed motor and a high-speed motor are arranged on both sides of a dehumidifying rotor, and a one-way clutch of each of the low-speed motor and the high-speed motor drives the dehumidifying rotor via one belt or chain. 3. The dehumidifying air conditioner according to 3.