JPH07145963A - Air conditioner - Google Patents

Abstract

PURPOSE:To simply manufacture a structure without using refrigerant, to reduce maintaining and operation costs and to eliminate an environmental contamination of refrigerant gas with low noise by providing a zeolite reaction tank for absorbing humidity of, heating and discharging introducing air. CONSTITUTION:At the time of cooling, the air of a room 1 is discharged from a discharge port 01, fed to a zeolite reaction tank 6 through switching valves 2a, 2b, a blower 5a and a partition valve 3, and low humidity, dry high temperature air is discharged from the tank 6. The air is supplied to a heat exchanger 7, heat exchanged with the air supplied to the exchanger 7 by a blower 5b to dry air at a relatively lower temperature, and supplied to a humidifier 8. Vaporization heat for vaporizing the water of the humidifier 8 is discharged, its temperature is further lowered, and air having a low temperature and suitable humidity is fed to the room 1 through a switching valve 2d. Air in the room 1 is discharged out of a discharge port 02 and heat exchanged with the air from the tank 6 by the exchanger 7, and fed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for adjusting the air condition in a room.

[0002]

2. Description of the Related Art In a conventional air conditioner for adjusting the indoor air condition, a compressor for compressing a refrigerant such as CFC, a condenser for condensing a gaseous refrigerant into a liquid refrigerant, and a rapid expansion of the liquid refrigerant. And an evaporator that evaporates a gaseous refrigerant. When performing the cooling operation, the gaseous compressed refrigerant produced by the compressor is condensed by the condenser to become a liquid refrigerant, which is rapidly expanded by the expander and then flowed into the room by the evaporator. Is exchanged with the air to remove heat of vaporization from the air to lower the temperature of the air, and the air having the lowered temperature is flowed into the room. Further, when performing a heating operation, the gaseous compressed refrigerant generated by the compressor is heat-exchanged with the air flowing into the room by the condenser, and the heat of condensation is given to the air to give the temperature of the air. Rises, and the air whose temperature has risen flows into the room.

[0003]

The above-mentioned conventional air conditioner requires a compressor, a condenser, an expander and an evaporator, and a sealing structure for preventing refrigerant gas from leaking, resulting in a complicated structure. In addition to problems in manufacturing cost, considerable power consumption is required for operation, and maintenance and operation costs are required to be reduced. Further, noise and vibration are great when driving the compressor, and there is a problem of pollution of the refrigerant gas to the global environment.

The present invention has been made in view of the current state of the air conditioner as described above, and its purpose is to reduce the manufacturing cost and the maintenance operation cost without using a refrigerant, which has a simple structure. An object of the present invention is to provide an air conditioner that has low noise and is free from environmental pollution due to refrigerant gas.

[0005]

To achieve the above object, the present invention relates to an air conditioner for adjusting an indoor air condition including temperature, and a zeolite reaction tank for absorbing and heating inflowing air to release it. A low-humidity and high-temperature air discharged from the zeolite reaction tank, a heat exchanger for exchanging heat with the air discharged from the room, and a low-humidity air discharged from the zeolite reaction tank and having a temperature lowered by the heat exchange. A humidifying device into which air is introduced to turn the air into low temperature air, and air discharged from the humidifying device during a cooling operation, and air that is discharged from the room during a heating operation and whose temperature has risen due to the heat exchange. Inflow air selection means for selecting each of them to flow into the room, air delivery means for causing the air discharged from the room to flow into the heat exchanger, and during the cooling operation, And a return selecting unit for selecting the air discharged from the inside and the air discharged from the humidifying device to flow into the zeolite reaction tank during the heating operation, and a regeneration unit for heating the zeolite reaction tank. It is configured.

[0006]

In the cooling operation, the return selection means selects the air released from the room and causes it to flow into the zeolite reaction tank. The zeolite reaction tank absorbs and heats the inflowing air to release it. In this way, the low-humidity and high-temperature air discharged from the zeolite reaction tank is heat-exchanged with the air discharged from the room or the outside air in the heat exchanger, and the low-humidity air with the lowered temperature is obtained. The low-humidity air whose temperature has dropped is admitted to the humidifier to obtain an appropriate humidity, and at the same time, it is deprived of the heat of vaporization to become low-temperature air. The temperature and humidity of the air is adjusted.

On the other hand, during the heating operation, the return selection means selects the air discharged from the humidifying device to flow into the zeolite reaction tank, and the zeolite reaction tank absorbs and heats the inflowing air and discharges it. In this way, the low-humidity and high-temperature air discharged from the zeolite reaction tank is heat-exchanged with the air discharged from the room in the heat exchanger, and the temperature of the air discharged from the room rises. In this way, the air whose temperature has risen flows into the room, and the temperature of the air in the room is adjusted. In this case, the low-humidity air that is discharged from the zeolite reaction tank and whose temperature has decreased due to heat exchange in the heat exchanger flows into the humidifier and is deprived of the heat of vaporization to become low-temperature air. Are flowed into the zeolite reaction tank by the return selection means as described above.

When the zeolite reaction tank is in a state of excessive moisture absorption, the zeolite reaction tank is heated by the regenerating means and the regenerating operation is performed.

[0009]

【Example】

[First Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
First, a first embodiment will be described with reference to FIGS. 1 to 4. Here, FIG. 1 is a block diagram illustrating a cooling operation of the first embodiment, FIG. 2 is a block diagram illustrating a heating operation of the first embodiment, and FIG. 3 is a block diagram illustrating a zeolite regeneration operation. FIG. 4 is a block diagram for explaining the standby state of the first embodiment.

As shown in FIG. 4, the room 1 in which air is adjusted is provided with inlets S1 and S2 into which air is introduced and outlets O1 and O2 from which air is released.
1 is connected to the output side of the humidifying device 8 via the switching valve 2d, and the inflow port S2 is connected to the second output side of the heat exchanger 7 via the switching valve 2f. Similarly, the discharge port O1 is connected to the switching valve 2b via the switching valve 2a.
A and 2d are connected to each other. The input side of the blower 5a is connected to the switching valve 2b, and the output side of the blower 5a is connected to the input side of the zeolite reaction tank 6 which performs a heat absorption and heat generation operation via the sluice valve 3, and the zeolite reaction tank 6 Is provided with a heating device 10 for performing indirect heating, and the output side of the zeolite reaction tank 6 is provided with a heat exchanger 7 via a switching valve 2c.
The first input side of is connected. The blower 5b connected to the switching valve 2e is provided on the second input side of the heat exchanger 7.
Is connected, and the input side of the humidifier 8 is connected to the first output side of the heat exchanger 7. FIG. 4 shows a standby state before performing air conditioning in the room 1. In this state, the sluice valve 3 is closed, the switching valve 2c is closed on the zeolite reaction tank 6 side, and the heat exchanger 7 The input side is opened to the atmosphere side, and the zeolite reaction tank 6 is kept dry.

Next, the cooling operation of the first embodiment having such a structure will be described.

In order to perform the cooling operation of the room 1 from the state shown in FIG. 4, as shown in FIG. 1, the heating device 10 is turned off, the sluice valve 3 is opened, and the switching valve 2c is switched to switch the zeolite reaction tank 6 The output side is opened to the input side of the heat exchanger 7, the switching valve 2e is switched to open the input side of the blower 5b to the atmosphere side, and the switching valve 2f is switched to open the second output side of the heat exchanger 7 to the atmosphere. Open to the side. Then, the switching valve 2d is switched to open the output side of the humidifying device 8 to the inlet S1, and the switching valve 2a is opened.
And the switching valve 2b is switched to open the discharge port O1 to the input side of the blower 5a.

In this way, the air in the room 1 is discharged from the discharge port O1, flows into the zeolite reaction tank 6 through the switching valves 2a, 2b, the blower 5a, and the sluice valve 3 to remove the zeolite in the zeolite reaction tank 6. The zeolite reaction tank 6 is dry-processed by the moisture absorption action, and the heat generated from the zeolite reaction tank 6 during the moisture absorption causes
From the zeolite reaction tank 6, air that is dry at low humidity and has a high temperature is discharged. This low-humidity, dry and high-temperature air is supplied to the first input side of the heat exchanger 7,
The blower 5b exchanges heat with the outside air supplied from the second input side of the heat exchanger 7, and the first output side of the heat exchanger 7 releases dry air having a slightly lowered temperature. The dry air whose temperature is slightly lowered is supplied to the humidifier 8.
The heat of vaporization for vaporizing the water of the humidifying device 8 is released to further lower the temperature, and air having a low temperature and an appropriate humidity is introduced into the room 1 from the inlet S1 through the switching valve 2d,
Comfortable cooling of room 1 is performed.

Next, the heating operation of the first embodiment will be described.

In order to perform the heating operation of the room 1 from the state of FIG. 4, as shown in FIG. 2, the heating device 10 is turned off, the sluice valve 3 is opened, and the switching valve 2c is switched to switch the zeolite reaction tank 6 from the state. The output side is opened to the input side of the heat exchanger 7, the switching valve 2e is switched to open the input side of the blower 5b to the discharge port O2 side, and the switching valve 2f is switched to the second output side of the heat exchanger 7. Is opened on the inlet S2 side. Then, the switching valve 2d,
2a to switch the output side of the humidifier 8 to the switching valves 2d, 2
Open to the input side of the blower 5a via a and 2b.

In this way, the air in the room 1 is discharged from the discharge port O2, is supplied to the second input side of the heat exchanger 7 via the switch 2e and the blower 5b, and the zeolite reaction is carried out in the heat exchanger 7. Warm air that has been heat-exchanged with the dry high-temperature air supplied from the output side of the tank 6 and has risen in temperature from the second output side of the heat exchanger 7 via the switching device 2f. Is introduced into the room 1 through the inflow port S2, and the room 1 is appropriately heated. On the other hand, the first of the heat exchanger 7
The warm and dry air whose temperature is released from the output side of is supplied to the humidifying device 8 to give heat of vaporization to the water of the humidifying device 8 to lower the temperature, and to be appropriately humidified,
It is again supplied to the zeolite reaction tank 6 via the switching valves 2d, 2a, 2b, the blower 5a and the sluice valve 3.

Then, the cooling operation or the heating operation of the room 1 is performed, the moisture absorption operation of the zeolite reaction tank 6 is continued,
When the zeolite reaction tank 6 becomes excessively hygroscopic, the switching valve 2b is opened to the atmosphere side as shown in FIG.
Is opened and the switching valve 2c is set to the state of being opened to the atmosphere side. Then, the heating device 10 is turned on, and the zeolite reaction tank 6 is indirectly heated and regenerated. In the first embodiment, one zeolite reaction tank 6 is provided, but a plurality of zeolite reaction tanks 6 are provided to regenerate a zeolite reaction tank that is not currently being cooled or heated, and the zeolite currently in use When the reaction tank 6 becomes excessively hygroscopic, it is possible to switch to the zeolite reaction tank in which the regeneration operation has been completed and used.

As described above, according to the first embodiment, since no refrigerant is used, the apparatus is not required to have a high degree of airtightness.
There is no need for costly compressors, condensers, expanders, and evaporators, and the humidifier 8 only needs to naturally evaporate water into dry air, which simplifies the overall structure and also during cooling and heating operations. Occasionally, electric power may be used only for driving the blowers 5a and 5b and switching the switching valves 2a to 2f, so that the operating cost can be significantly reduced. Further, since there is no compressor, there is provided no vibration or noise pollution that occurs when the compressor is driven, and an air conditioner that does not cause the problem of environmental pollution of the refrigerant when the device is discarded. The first embodiment can be widely used in various fields such as a house, an office, and a clean room, but it is possible to perform a comfortable air conditioning operation without noise during precision work or sleeping.

[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIGS. Here, FIG.
6 is a block diagram for explaining the cooling operation of the second embodiment, FIG.
[Fig. 3] is a block diagram illustrating a heating operation of the embodiment.

This second embodiment is based on the first embodiment already described.
For the embodiment of the above, between the heat exchanger 7 and the humidifying device 8,
The auxiliary heat exchanger 12 is newly inserted, and this auxiliary heat exchanger 1
The switching valve 2a is connected to the input side of 2, the output side of the auxiliary heat exchanger 12 is connected to the switching valve 2b, and the zeolite reaction tank 6 is internally provided with a heating device 10 for performing heating. . The configuration of the other parts of the second embodiment is the same as that of the first embodiment already described.

In the second embodiment, during the cooling operation,
The air discharged from the discharge port O1 is also heat-exchanged with the air on the first output side of the heat exchanger 7 by the auxiliary heat exchanger 12, so that the efficiency of heat exchange is improved and the temperature of the humidifier 8 becomes lower. It becomes possible to flow the air of the above into the room 1 from the inflow port S1. Further, during the heating operation, in the auxiliary heat exchanger 12, the air on the first output side of the heat exchanger 7 is supplied to the humidifier 8
By exchanging heat with the low temperature air having the output of 1, the load on the zeolite reaction tank 6 can be reduced and the operating life of the zeolite reaction tank 6 can be extended.

In each embodiment, it is also possible to recover the steam obtained during the regenerating operation of the zeolite reaction tank 6 as condensed water and return it to the humidifier 8.

[0023]

According to the present invention, the low-humidity and high-temperature air discharged from the zeolite reaction tank is heat-exchanged with the air discharged from the room in the heat exchanger, and the heat of vaporization is removed by the humidifier 8 at low temperature. On the other hand, the air discharged from the room is turned into high temperature air by the heat exchange, the cooling operation is performed by the low temperature air, and the heating operation is performed by the high temperature air, so that the refrigerant is not used and the compressor is used. , No condenser, expander and evaporator are required, the structure is simple and the manufacturing cost is reduced, the power consumption during the cooling operation and the heating operation is significantly reduced, and the operating cost is reduced.
Provided is an air conditioner that does not cause noise pollution from a compressor and does not cause a problem of refrigerant environmental pollution.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a cooling operation according to a first embodiment of the present invention.

FIG. 2 is a block diagram illustrating a heating operation according to the first embodiment.

FIG. 3 is a block diagram illustrating a regenerating operation of the zeolite of the first embodiment.

FIG. 4 is a block diagram illustrating a standby state of the first embodiment.

FIG. 5 is a block diagram illustrating a cooling operation according to a second embodiment of the present invention.

FIG. 6 is a block diagram illustrating a heating operation according to a second embodiment.

[Explanation of symbols]

 1 room 2a-2f switching valve 3 sluice valve 5a, 5b blower 6 zeolite reaction tank 7 heat exchanger 8 humidifier 10 heating device 12 auxiliary heat exchanger

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[Procedure amendment]

[Submission date] February 1, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

As shown in FIG. 4, the room 1 in which air is adjusted is provided with inlets S1 and S2 into which air is introduced and outlets O1 and O2 from which air is released.
1 is connected to the output side of the humidifying device 8 via the switching valve 2d, and the inflow port S2 is connected to the second output side of the heat exchanger 7 via the switching valve 2f. Similarly, the discharge port O1 is connected to the switching valve 2b via the switching valve 2a.
A and 2d are connected to each other. The input side of the blower 5a is connected to the switching valve 2b, and the output side of the blower 5a is connected to the input side of the zeolite reaction tank 6 that performs a heat absorption and heat generation operation via the sluice valve 3, and the zeolite reaction tank 6 Is provided with a heating device 10 for performing indirect heating. The output side of the zeolite reaction tank 6 is provided with a heat exchanger 7 via a switching valve 2c.
The first input side of is connected. The blower 5b connected to the switching valve 2e is provided on the second input side of the heat exchanger 7.
Is connected, and the input side of the humidifier 8 is connected to the first output side of the heat exchanger 7. The zeolite contained in the zeolite reaction tank 6 is an X type zeolite having the maximum porous opening and water absorption, and it is preferable to use it as a spherical pellet or rod-shaped body. FIG. 4 shows a standby state before performing air conditioning in the room 1. In this state, the sluice valve 3 is closed, the switching valve 2c is closed on the zeolite reaction tank 6 side, and the heat exchanger 7 The input side is opened to the atmosphere side, and the zeolite reaction tank 6 is kept dry.

Claims (4)

[Claims] 1. In an air conditioner for adjusting an indoor air condition including temperature, a zeolite reaction tank for absorbing and heating inflowing air to release it, and low-humidity and high-temperature air discharged from the zeolite reaction tank.
A heat exchanger that exchanges heat with the air discharged from the room, and low-humidity air that has been discharged from the zeolite reaction tank and whose temperature has decreased due to the heat exchange is introduced to humidify the air into low-temperature air. Device, the air discharged from the humidifier during cooling operation,
During the heating operation, the inflow air selection means for selecting the air released from the room and having the temperature raised by the heat exchange to flow into the room, and the air released from the room to the heat exchanger. An air delivery means for causing the air to be discharged from the room during the cooling operation, and a return selecting means for selecting the air discharged from the humidifying device during the heating operation to flow into the zeolite reaction tank, respectively. An air conditioner having a regenerating means for heating a zeolite reaction tank. 2. An auxiliary heat exchanger is further provided at a stage subsequent to the heat exchanger, and the return selection means transfers the air discharged from the room or the air discharged from the humidifying device to the auxiliary heat exchange. 2. The air conditioner according to claim 1, wherein heat is exchanged with the output of the heat exchanger in the vessel and the heat is allowed to flow into the zeolite reaction tank. 3. The zeolite reaction tank is provided in a plurality, and the zeolite reaction tank not used for air conditioning operation is regenerated by the regenerating means.
Alternatively, the air conditioner according to claim 2. 4. The air conditioner according to claim 1, further comprising water supply means for supplying water so that the humidifying device maintains a constant amount of water.