JP2002333161A - Dehumidifying air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidifying air conditioning system not suffering deterioration in comfortability of supplied air even when a supply destination of air is situated remotely from a dehumidifying cooling device body. SOLUTION: An evaporative cooling apparatus, such as a water spray 6, is situated in a duct 13 running to a room 15 being a supply destination from a dehumidifying device 11 body or the room 15. Evaporative cooling is effected in the vicinity of the supply destination. In a case that the duct 13 is long, the duct 13 is prevented from an increase in temperature of supply air due to outside air while air flows through the duct 13 when the duct 13 is long.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying air-conditioning system for producing dry air using, for example, a moisture adsorbent and cooling the dry air for cooling.

[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.

FIG. 8 shows an example of a conventional dehumidifying air conditioner.
It will be described in detail along. Reference numeral 1 denotes a blower, and the atmosphere OA
To the adsorption zone 3 of the dehumidifying rotor 2. As a result, the temperature of the air rises due to the heat of adsorption and becomes dry air. Here, the dehumidifying rotor 2 is formed by supporting a hygroscopic agent such as silica gel or zeolite on paper formed in a honeycomb (honeycomb) shape, and is rotated by a motor (not shown) via a belt or the like (not shown). It is driven. The dehumidifying rotor 2 has a shape as shown in FIG.

[0004] The air leaving the adsorption zone 3 of the dehumidifying rotor 2 passes through a rotary sensible heat exchange rotor 4. Here, the rotary sensible heat exchange rotor 4 is a thin plate made of aluminum or the like formed in a honeycomb shape, and is rotationally driven by a motor (not shown) via a belt or the like (not shown). The rotary sensible heat exchange rotor 4 also has a shape as shown in FIG.

The dried air whose temperature has risen out of the adsorption zone 3 exchanges heat with the rotary sensible heat exchange rotor 4 in the cooling zone 5 of the rotary sensible heat exchange rotor 4, and the temperature of the dry air decreases and The temperature of the rotary sensible heat exchange rotor 4 rises. The dried and cooled air is further humidified and cooled by the spray 6 and supplied to the room as product air SA.

[0006] The return air RA from the room is humidified and cooled by the spray 6 '. The return air RA whose humidity has risen and the temperature has fallen exchanges heat with the rotary sensible heat exchange rotor 4 in the heating zone 7 of the sensible heat exchange rotor 4. That is, while cooling the rotary sensible heat exchange rotor 4, the temperature of the air rises.

The heated air is further heated by the heater 8 and enters the desorption zone 9 of the dehumidifying rotor 2. Here, the moisture adsorbed on the dehumidifying rotor 2 is desorbed and released to the atmosphere as exhaust EA by the blower 10. Here, the heater 8 is a heat exchanger or an electric heater to which steam is sent.

[0008]

Although a dehumidifying and cooling apparatus has a high ability to supply dry air, cooling is generally performed by utilizing heat of vaporization of water. Not so low. Therefore, there is a problem that in the process of sending air from the main body of the dehumidifying / cooling device to the air supply destination, the temperature of the air rises and comfort is impaired.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dehumidifying air-conditioning system in which the comfort of supplied air is not impaired even when the air supply destination is far from the dehumidifying cooling device main body.

[0010]

In order to solve the above-mentioned problems, the present invention is provided with a means for vaporizing and cooling water in a passage extending from the dehumidifying / cooling apparatus main body to a supply destination.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, dry air produced by a dehumidifying means is supplied to a supply destination through a duct, and the dry air passing through at least a part of the duct is supplied to the supply destination. Cooling means for cooling is provided, and the air cooled by the cooling means is supplied to the supply destination, and the temperature of the air in the process of passing through the duct to cool and supply the dry air near the supply destination is provided. Does not rise.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is an air flow diagram showing Embodiment 1 of the dehumidifying air conditioning system of the present invention. Here, the blower 1, the dehumidifying rotor 2, the adsorption zone 3, the spray 6, the desorption zone 9, and the blower 10 are the same as those used in the conventional dehumidifying air conditioner, and the repeated description will be omitted.

Reference numeral 11 denotes a dehumidifying device, in which the above-described blower 1, dehumidifying rotor 2, adsorption zone 3, desorption zone 9, and blower 10 are provided. Reference numeral 12 denotes a micro gas turbine generator whose exhaust gas is led to the desorption zone 9.

Reference numeral 13 denotes a duct for sending dry air that has passed through the adsorption zone 3 of the dehumidifying rotor 2 to a supply destination. Reference numeral 14 denotes a duct for flowing return air from a supply destination. Reference numeral 15 denotes a room to which dry air is supplied. The spray 6 is attached near the outlet of the air supply duct 13.

Embodiment 1 of the dehumidifying air-conditioning system according to the present invention is configured as described above, and its operation will be described below.
First, the blower 1 is activated and the air is sent to the adsorption zone 3 of the dehumidifying rotor 2. Then, the atmosphere is dried by the dehumidifying rotor 2 and the temperature rises due to heat of adsorption. The dried air whose temperature has risen is sent through the air supply duct 13.

In the process of being sent to the room 15 by the air duct 13, the temperature of the dry air drops to near the temperature of the atmosphere.
For example, if the temperature of the outside air is 30 ° C., the temperature of the dry air rises to nearly 50 ° C. due to the heat of adsorption. The temperature near the outlet of the duct 13 is close to the temperature of the outside air.

Assuming that the condition of the dry air is a temperature of 31.7 ° C. and a relative humidity of 24%, the dry air
Then, the temperature is reduced to, for example, 23 ° C., and the air is supplied to the room 15 as comfortable air having a relative humidity of 60%.

The return air from the room 15 passes through the return air duct 14 and is discharged to the atmosphere by the blower 10. The exhaust gas of the micro gas turbine generator 12 has a temperature of 140.
This high temperature gas is sent to the desorption zone 9 of the dehumidifying rotor 2 to desorb the moisture adsorbed on the dehumidifying rotor 2. The humid gas that has passed through the desorption zone 9 of the dehumidifying rotor 2 is discharged to the atmosphere by the blower 10.

FIG. 2 is an air flow diagram showing Embodiment 2 of the dehumidifying air conditioning system of the present invention. Here, blower 1, dehumidifying rotor 2, adsorption zone 3, desorption zone 9, blower 10,
The air supply duct 13, the return air duct 14, and the room 15 are the same as those used in the first embodiment, and a duplicate description will be omitted.

The second embodiment shown in FIG.
In addition to the above, a sensible heat exchange rotor 16 is provided, and a humidifying cooler 17 is provided. The humidifying cooler 17 allows air to pass between nonwoven fabrics wetted with water, for example. The dry air produced by the dehumidifying rotor 2 is cooled by the sensible heat rotor 16 and supplied to the room 15 through the air supply duct 13. Dry air in room 1
5 is humidified and cooled by the spray 6. The return air from the room 15 returns to the dehumidifier 11 through the return air duct 14.

The air returned to the dehumidifier 11 is supplied to the humidifier 1
The sensible heat exchange rotor 16 is cooled by humidification and becomes low-temperature air. The low-temperature air that has passed through the sensible heat exchange rotor 16 exchanges sensible heat with the sensible heat exchange rotor 16 to increase the temperature, and the temperature is further increased by the heater 8 to desorb the moisture adsorbed on the dehumidifying rotor 2. The humid air after the desorption of moisture is released to the atmosphere by the blower 10.

The second embodiment is different from the first embodiment in that dry air is once cooled in the dehumidifier 11 and then supplied to the room 15. Temperature can be lowered.

FIG. 3 is an air flow diagram showing Embodiment 3 of the dehumidifying air-conditioning system of the present invention. The third embodiment differs from the second embodiment in that a humidifying cooler 18 is provided instead of the spray 6. The humidifying cooler 18 is similar to the humidifying cooler 17 shown in FIG.
Example 3 is different from Example 2 in that
Since the cooling means in the room 15 is the humidifying cooler 18 for the spray 6, there is no problem such as scattering of water droplets.

FIG. 4 is an air flow diagram showing Embodiment 4 of the dehumidifying air-conditioning system of the present invention. Here, blower 1, dehumidifying rotor 2, adsorption zone 3, spray 6, desorption zone 9,
The blower 10, the dehumidifier 11, the micro gas turbine generator 12, the air supply duct 13, the return air duct 14, and the room 15 are the same as those used in the first embodiment, and the duplicate description will be omitted.

Reference numeral 17 denotes an orthogonal sensible heat exchanger.
The term theme 3L059 is classified as BA02, and exchanges the sensible heat of the air passing through the air supply duct 13 and the return air duct 14.

Embodiment 4 of the dehumidifying air-conditioning system according to the present invention is configured as described above, and its operation will be described below.
First, the blower 1 is activated and the air is sent to the adsorption zone 3 of the dehumidifying rotor 2. Then, the atmosphere is dried by the dehumidifying rotor 2 and the temperature rises due to heat of adsorption. The dried air whose temperature has risen is sent through the air supply duct 13.

It is assumed that the temperature of the dry air has not dropped so much in the process of being sent to the room 15 by the air duct 13. For example, if the temperature of the outside air is 30 ° C., the temperature of the dry air rises to about 50 ° C. due to heat of adsorption, and heat is radiated through the air duct 13 while passing through the air duct 13.

The heat radiation amount is small and the orthogonal sensible heat exchanger 17
Assuming that the air condition near the inlet is 35 ° C. and 20% relative humidity, the temperature is further lowered by the orthogonal sensible heat exchanger 17 to 31.7 ° C. and 24% relative humidity. Then, the dry air is humidified and cooled by the spray 6 and its temperature is reduced to, for example, 23 ° C., and is supplied to the room 15 as comfortable air having a relative humidity of 60%.

The return air from the room 15 passes through the return air duct 14 and is discharged to the atmosphere by the blower 10. The exhaust gas of the micro gas turbine generator 12 has a temperature of 140.
This high temperature gas is sent to the desorption zone 9 of the dehumidifying rotor 2 to desorb the moisture adsorbed on the dehumidifying rotor 2. The humid gas that has passed through the desorption zone 9 of the dehumidifying rotor 2 is discharged to the atmosphere by the blower 10.

FIG. 5 is an air flow diagram showing Embodiment 5 of the dehumidifying air conditioning system of the present invention. In the fifth embodiment shown in FIG. 5, the orthogonal sensible heat exchanger 17 is used in addition to the fourth embodiment.
And a humidifying cooler 18 is provided instead of the spray 6.

The fifth embodiment is different from the fourth embodiment in that the dry air is once cooled by the sensible heat exchanger 17 in the dehumidifier 11 and then supplied to the room 15. The temperature of the supply air can be lower than that of the fourth embodiment.

FIG. 6 is an air flow diagram showing Embodiment 6 of the dehumidifying air-conditioning system of the present invention. Here, blower 1, dehumidifying rotor 2, adsorption zone 3, spray 6, desorption zone 9,
The blower 10, the dehumidifier 11, the micro gas turbine generator 12, and the room 15 are the same as those used in the first embodiment, and a duplicate description will be omitted.

The sixth embodiment differs from the first embodiment in the structure of the air supply duct 13 and the return air duct 14. That is, the return air duct 14 is inserted into the air supply duct 13 so as to be coaxial and double. Here, the air supply duct 13 and the return air duct 14 are not coaxial, and the centers thereof may be shifted from each other.

Embodiment 6 of the dehumidifying air-conditioning system of the present invention is configured as described above, and the operation thereof will be described below.
First, the blower 1 is activated and the air is sent to the adsorption zone 3 of the dehumidifying rotor 2. Then, the atmosphere is dried by the dehumidifying rotor 2 and the temperature rises due to heat of adsorption. The dried air whose temperature has risen is sent through the air supply duct 13.

While the dry air is sent through the air supply duct 13, it exchanges heat with the return air passing through the return air duct 14 to lower the temperature. That is, the dry air having a temperature of about 40 ° C. becomes air having a temperature of 32 ° C. and a relative humidity of about 24% while passing through the air supply duct 13. When water is sprayed onto the cooled dry air by the spray 6, the temperature is reduced to, for example, 23 ° C., and the air becomes a comfortable air with a relative humidity of 60%.
Supplied to

In the sixth embodiment of the dehumidifying air-conditioning system, the air supply duct 13 is provided outside the return air duct 14, and the air supply duct 13 is also cooled by outside air. Therefore temperature 4
Dry air at about 0 ° C. is also cooled by the atmosphere at the start of passage through the air supply duct 13.

FIG. 7 is an air flow diagram showing Embodiment 7 of the dehumidifying air-conditioning system of the present invention. Here, blower 1, dehumidifying rotor 2, adsorption zone 3, spray 6, desorption zone 9,
The blower 10, the dehumidifier 11, the micro gas turbine generator 12, the air supply duct 13, the return air duct 14, and the room 15 are the same as those used in the first embodiment, and the duplicate description will be omitted.

In the seventh embodiment, in addition to the first embodiment, a branch air duct 19 branched from the air duct 13 and a second chamber 20 are provided. The branch air duct 19 guides the air in the air duct 13 to the second room 20.

In the case of this example, air at a temperature of 31.7 ° C. and a relative humidity of 24% is led to the second room 20. For example, room 1
When the room 5 is used for living and the second room 20 is used as a drying room for drying wet material, the most ideal air condition can be provided.

[0040]

As described above, the dehumidifying air-conditioning system of the present invention can cool the dry air in the vicinity of or at the supply destination even if the supply destination of the dry air is far from the dehumidifier. The temperature of the air can be lowered.

Further, the dehumidifying air-conditioning system of the present invention can reduce the temperature of the dry air whose temperature has increased due to the heat of adsorption to near the temperature of the atmosphere without adding any special components, and cool it to cool it. By supplying the air, the temperature of the supply air can be reduced.

In the present invention, since the air supply duct and the return air duct are doubled, heat exchange is performed between the dry air and the return air, and the temperature of the dry air decreases, and the temperature of the supply air decreases. Can be lowered. Moreover, by providing the air supply duct on the outer periphery of the return air duct, the temperature of the dry air whose temperature has increased due to the heat of adsorption can be cooled by the outside air around the return air duct.

In order to cool the dry air in the vicinity of the supply destination of the dry air or at the supply destination, when there are a plurality of supply destinations, the cooling conditions are made different for each supply destination, and for each supply destination, according to the purpose of the supply destination. The temperature of the drying air can be set.

[Brief description of the drawings]

FIG. 1 is a flowchart showing Embodiment 1 of a dehumidifying air-conditioning system of the present invention.

FIG. 2 is a flowchart showing Embodiment 2 of the dehumidifying air conditioning system of the present invention.

FIG. 3 is a flowchart showing Embodiment 3 of the dehumidifying air-conditioning system of the present invention.

FIG. 4 is a flowchart showing Embodiment 4 of the dehumidifying air-conditioning system of the present invention.

FIG. 5 is a flowchart showing Embodiment 5 of the dehumidifying air conditioning system of the present invention.

FIG. 6 is a flowchart showing Embodiment 6 of the dehumidifying air-conditioning system of the present invention.

FIG. 7 is a flowchart showing Embodiment 7 of the dehumidifying air conditioning system of the present invention.

FIG. 8 is an explanatory diagram showing an example of a conventional dehumidifying air conditioning system.

FIG. 9 is a perspective view of a honeycomb rotor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Blower 2 Dehumidification rotor 3 Adsorption zone 6 Spray 9 Desorption zone 10 Blower 11 Dehumidification device 12 Micro gas turbine generator 13 Air supply duct 14 Return air duct 15 Room 16 Sensible heat exchange rotor 17 Orthogonal sensible heat exchanger 18 Humidification cooler 19 Branch air duct 20 Second room

Claims (5)

[Claims] 1. A cooling device for supplying dry air produced by a dehumidifying means to a supply destination through a duct, and cooling the dry air having passed at least a part of the duct, wherein the cooling means cools the dry air. A dehumidifying air conditioning system that supplies the supplied air to the destination. 2. The dehumidifying air-conditioning system according to claim 1, wherein the cooling means uses heat of vaporization of water. 3. A sensible heat exchange means for exchanging sensible heat between dry air passing through at least a part of a duct and return air from a supply destination, and supplying dry air passing through the sensible heat exchange means. The dehumidifying air-conditioning system according to claim 1, wherein the air is supplied first. 4. An air supply duct for sending dry air produced by the dehumidifying means to a supply destination, and a return air duct for sending air from the supply destination to the dehumidification means, wherein the air supply duct and the return air duct are connected to each other. 2. The dehumidifying air conditioning system according to claim 1, wherein the air conditioning system is doubled. 5. The dehumidifying air-conditioning system according to claim 3, wherein the air supply duct is provided on an outer periphery of the return air duct.