JP3070342B2 - Air quality control machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having functions such as dehumidification, humidification, and ventilation, and controlling the quality of indoor air such as humidity and cleanliness.

[0002]

2. Description of the Related Art Heretofore, there has not been found any device which can perform dehumidification, humidification, ventilation, etc. with a single device. As a similar device, for example, a dry type of TSA system as disclosed in JP-A-63-286634. There is a dehumidifier.

[0003] This dry dehumidifier will be described with reference to FIG. 4. Reference numeral 1 denotes a casing that forms an air passage. The casing 1 is installed on an outer wall 5. Openings A and B provided on the outer wall 5 are provided on the casing 1 such that an outdoor air inlet 8 and an outdoor air discharge port 9 communicate with each other. ing. Also, in the casing 1,
An indoor air intake 6 is provided corresponding to the outdoor air intake 8, so that the outdoor air intake 8 and the indoor air intake 6 can be alternately opened and closed by a damper 1A installed in the casing 1. Has become. Similarly, the casing 1 is provided with an indoor air discharge port 7 corresponding to the outdoor air discharge port 9, and the outdoor air discharge port 9 and the indoor air discharge port 7 are connected to the damper 1 </ b> B installed in the casing 1. Can be opened and closed alternately. In the air path formed by the casing 1, a blower 2, a heater 3, and an adsorbent 4 are arranged in this order from the upstream side.

In the above device, if the indoor air inlet 6 and the indoor air outlet 7 are in an open state, the room air enters the casing 1 through the indoor air inlet 6, and this indoor air is The air is blown through the air passage in the casing 1 by the blower 2 to the indoor air discharge port 7, and is blown into the room through the indoor discharge port 7. Accordingly, room air passes through the adsorbent 4 provided in the casing 1 serving as an air path,
The adsorbent 4 removes the humidity of the room air and discharges the dry air into the room.

Conversely, when the indoor air inlet 6 and the indoor air outlet 7 are closed, and the outdoor air inlet 8 and the outdoor air outlet 9 are opened and the heater 3 is heated, Heated air enters the adsorbent 4 through the outdoor air intake 8, and the heated air desorbs moisture adsorbed by the adsorbent 4 and discharges the air outside through the outdoor discharge port 9. In this manner, indoor dehumidification is performed while repeating the circulation of the indoor air and the circulation of the outdoor air.

In such a conventional dry dehumidifier, as shown in FIG. 5, there is no gap between the casing 1 forming the air passage and the adsorbent 4, and the adsorbent 4 is disposed over the entire cross section of the casing 1. I was Therefore, the air C blown by the blower 2 is completely absorbed by the adsorbent 4 both during adsorption and desorption.
Had passed.

[0007]

However, in the above-mentioned conventional structure, the adsorbent 4 is heated to a high temperature at the end of the desorption step, so that moisture can be adsorbed as is apparent from the adsorption isobar characteristic. Not a state. In addition, due to the heat of adsorption generated by the adsorbent 4 during the adsorption and the heat generated by the heater 3 during the desorption, the temperature of the blown air increases, or the heat leaks out of the air passage to raise the air passage surface temperature and the temperature inside the main body. I was letting it. For this reason, there is a problem described below.

[0008] 1. It is necessary to change the outlet portion to another heat-resistant part, which increases costs. 2. There is a risk that the user may get burned at the outlet.

3. Room temperature rises, compromising the comfort of dehumidification. 4. As the P-plate ambient temperature rises, it is necessary to take measures to keep the element temperature of the microcomputer or the like within the allowable temperature range.

[0010] 5. The heat accumulated in the main body makes it difficult for the temperature of the adsorbent to drop in the adsorption step, and deteriorates the adsorption performance. That is, the dehumidifying ability was reduced.

A first object of the present invention is to improve the dehumidifying capacity while reducing the indoor air temperature and the air passage surface temperature, and a second object of the present invention is to make the equipment compact. It is what it was.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an air path, an adsorbing section comprising an adsorbent and a heater disposed in the air path, and a blower for sending air to the adsorbing section. A damper for switching the air path between the indoor side and the outdoor side; an adsorption step of interlocking control of the heater, the blower and the damper to adsorb moisture to the adsorbent; and removing the adsorbed moisture of the adsorbent. And a controller that alternately and repeatedly performs a desorption step of desorption, wherein the adsorbent is provided with a gap provided between its outer periphery and an air passage, and further achieves a second object. Therefore, in addition to the above configuration, a configuration is provided in which a rectifying plate is provided on the upstream side of the suction section.

[0013]

According to the present invention, dehumidification and humidification are performed by operating the blower, switching the air path by the damper, and controlling the power supply to the heater to alternately circulate the indoor air and circulate the outdoor air. Etc. can be performed.

At this time, the air from the blower flows as it is into the outer peripheral space of the adsorbing section composed of the heater and the adsorbent, so that the air path wall can be maintained at a low temperature even if the adsorbing section is at a high temperature. The temperature of the air blown into the room can be lowered, and the adsorbent after the desorption step hardly receives residual heat from the air path wall, so that the temperature drops rapidly, and when entering the adsorption step At the same time, moisture can be efficiently adsorbed.

Further, since a flow straightening plate is provided on the upstream side of the suction section, even if the air flow from the blower has uneven distribution, it can be uniformly sent to the suction section and the gap.
The adsorbent can perform efficient desorption and adsorption of moisture without bias over its entire area, and increase the distance between the blower and the adsorption unit to reduce airflow distribution unevenness. Since there is no need to do so, it is possible to promote downsizing of the equipment.

[0016]

1 and 2 show a first embodiment of the present invention.
This will be described with reference to FIG. 1 and 2, the adsorbent 1
1 and the heater 13 are connected to the air passage 14
A uniform gap T is provided all around the inside. The adsorbent 11, the protective case 12, the heater 13, and the air passage 14 constitute an adsorbing section 16. The blower 17 is disposed at a position where the air is blown to the adsorption section 16 with the heater 13 side upstream. The suction air passage 18 connected to the suction port of the blower 17 includes an indoor suction port 19 and an outdoor suction port 20,
Only one of the room and the outside is communicated with the blower 17 by the suction damper 22 driven by the first motor 21. The outlet air path 23 connected to the air path 14 includes an indoor outlet 24 and an outdoor exhaust port 25, and only one of the indoor and outdoor paths is provided by an outlet damper 27 driven by a second motor 26. To communicate with

The heater 13, the blower 17, the first motor 21, and the second motor 26 are
8 for interlocking control. An instruction is input to the controller 28 by the operation unit 29. The above components are disposed in the base 30 and the cabinet 31 as the exterior. The cabinet 31 is provided with the above-described operation unit 29, a suction louver 32 is provided at a portion where the indoor suction port 19 communicates with the room, and a blowout louver 33 is provided at a portion where the room outlet 24 communicates with the room. is there.

The operation of the above configuration will now be described. First, the operation power supply (not shown) is turned on at the operation unit 29, and one of the operation mode switches (not shown) of dehumidification, humidification, and ventilation is selected. When turned on, the operation of the selected mode is performed according to the contents described below. (Dehumidification Operation) In the dehumidification operation, the adsorption step and the desorption step described below are alternately and repeatedly operated to perform indoor dehumidification.

In the desorption step, the suction damper 22 is in a position where the outdoor suction port 20 communicates with the blower 17, and the blowout damper 27 is in a position where the outdoor exhaust port 25 communicates with the air passage 14. When the heater 13 and the blower 17 are operated in this state, the outdoor air 34 introduced through the outdoor suction port 20 by the blower 17 is heated by the heater 13 to become hot air, and then passes through the adsorbent 11. At this time, the adsorbent 11
Moisture adsorbed on the surface of the sheet, when receiving the heat of the total amount of the heat released as heat of adsorption and the heat of wetting at the time of adsorption, sequentially desorbs from the adsorbent 11 into the passing air. The heated outdoor air is discharged to the outside of the room as the exhaust air 35 through the outdoor exhaust port 25 together with the desorbed moisture.

At the time of the desorption step, the blown air 36 entering the adsorbing section 16 is divided into main air 37 passing through the adsorbent 11 and cooling air 38 flowing through the gap T on the outer periphery. The above operation is performed by the main air 37 and the cooling air 38 is supplied to the protective case 12.
And the air path 14 are insulated from each other and merged in the outlet air path 23 to lower the temperature of the main air 37 heated by the heater 13.

In the suction step, the suction damper 22 is located at a position where the indoor suction port 19 is communicated with the blower 17, and the blowout damper 27 is located at a position where the indoor outlet 24 is communicated with the air passage 14. In this state, when only the blower 17 is operated without operating the heater 13, the room air 39 introduced by the blower 17 through the indoor suction port 19 passes through the adsorbent 11. At this time, the passing air adsorbs moisture contained in the adsorbent 11, that is, dehumidifies and becomes dry air. This dry air is supplied to the room through the indoor outlet 24 as blown air 40.

During this adsorption step, the air blown into the adsorption section 16 is divided into main air 37 passing through the adsorbent 11 and cooling air 38 flowing through the gap T on the outer periphery. The above operation is performed by the main air 37, and the cooling air 38 insulates between the protective case 12 and the air passage 14 and joins in the blow-out air passage 23 to be heated by the heat of adsorption generated at the time of adsorption. Is lowered, and the adsorption performance of the adsorbent 11 is prevented from deteriorating due to the heat accumulated inside the main body due to the operation. (Humidification Operation) The humidification operation is performed by alternately and repeatedly performing an adsorption step and a desorption step described below to humidify the room.

In the desorption step, the suction damper 22 is in a position where the indoor suction port 19 communicates with the blower 17, and the blowout damper 27 is in a position where the indoor blowout port 24 communicates with the air passage 14. When the heater 13 and the blower 17 are operated in this state, the room air 39 introduced by the blower 17 through the indoor suction port 19 is heated by the heater 13 to become hot air, and then passes through the adsorbent 11. At this time, the adsorbent 11
Moisture adsorbed on the surface of the sheet, when receiving the heat of the total amount of the heat released as heat of adsorption and the heat of wetting at the time of adsorption, sequentially desorbs from the adsorbent 11 into the passing air. The heated outdoor air is supplied to the room through the indoor air outlet 24 as the blown air 40 together with the desorbed moisture to perform humidification.

At the time of this desorption step, the blown air 36 entering the adsorbing section 16 is divided into main air 37 passing through the adsorbent 11 and cooling air 38 flowing through the gap T on the outer periphery. The above operation is performed by the main air 37 and the cooling air 38 is supplied to the protective case 12.
And the air path 14 are insulated from each other and merged in the outlet air path 23 to lower the temperature of the main air 37 heated by the heater 13.

In the suction step, the suction damper 22 is located at a position where the outdoor suction port 20 communicates with the blower 17, and the blow damper 27 is located at a position where the outdoor exhaust port 25 communicates with the air passage 14. In this state, when only the blower 17 is operated without operating the heater 13, the outdoor air 34 introduced by the blower 17 through the outdoor suction port 20 passes through the adsorbent 11. At this time, the passing air adsorbs the moisture contained in the adsorbent 11 and becomes dry air. This dry air is supplied to the outdoor exhaust port 2
After that, the air is discharged outside as room air 35.

In this adsorption step, the air blown into the adsorption section 16 is divided into main air 37 passing through the adsorbent 11 and cooling air 38 flowing through the gap T on the outer periphery. The above operation is performed by the main air 37, and the cooling air 38 insulates between the protective case 12 and the air passage 14 and joins in the blow-out air passage 23 to be heated by the heat of adsorption generated at the time of adsorption. Is lowered, and the adsorption performance of the adsorbent 11 is prevented from being deteriorated by the heat accumulated in the main body due to the operation. (Ventilation operation) In the ventilation operation, the heater 13 is not operated. The suction damper 22 is located at a position where the indoor suction port 19 is communicated with the blower 17, and the blowout damper 27 is located at a position where the outdoor exhaust port 25 is communicated with the air passage 14. In this state, blower 1
7 is operated, the blower 17 causes the indoor suction port 19 to operate.
The indoor air 39 introduced through the air outlet is discharged as exhaust 35 to the outside of the room via the blower 17, the suction section 16, and the outdoor exhaust port 25. At this time, since the introduced air passes through the adsorbent 11, the moisture contained in the introduced air is adsorbed and removed in the initial operation, but when only the ventilation operation is continued without desorption, the adsorbent 11 is gradually increased. The water is saturated with the adsorbed moisture, and finally reaches a breakthrough state and stops being adsorbed. Therefore, even if it is the structure which passes through the adsorbent 11, ventilation similar to a general ventilation device can be performed.

As described above, this air conditioner has a function of dehumidifying, humidifying and ventilating which does not require the treatment of water supply and drain water, while maintaining the temperature of the air discharged from the outlet louver 33 and the air passage 14. Surface temperature can be reduced. In addition, since the cooling air 38 is flown to shield the adsorbent 11 and the outer periphery of the adsorbing section 16, the adsorbent 11 can be cooled quickly in the adsorption step, and the amount of adsorption increases, thereby improving the dehumidifying and humidifying ability. I do.

Further, since the adsorbent 11 is housed in the protective case 12, the adsorbent 11 which is easily damaged or worn by impact or friction can be protected from such external stress, and the durability can be improved.

FIG. 3 is a diagram for further improving the performance and reducing the size. The configuration will be described below. The same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Explaining only the part, this air quality controller is provided with a porous straightening plate 15 at the upstream end of the suction section 16.

According to this configuration, the air from the blower 17 is evenly dispersed by the rectifying plate 15 so that the air uniformly flows not only in the entire area of the heater 13 and the adsorbent 11 but also in the gap T on the outer periphery of the adsorbing section 16. become. Accordingly, localization of the adsorbent 11 and a part of the air passage 14 due to uneven air flow is prevented, and the adsorbent 11
Can efficiently desorb and adsorb moisture over the entire area, thereby improving dehumidification and humidification performance. Also,
Even if the blower 17 and the suction unit 16 are arranged close to each other, air can be uniformly supplied to the suction unit 16 and the gap T as described above. Therefore, the distance between the blower 17 and the suction unit 16 is increased. It is not necessary to equalize the distribution of the air flow, and the equipment can be made compact. Adsorbent 11 mounted in this way
The efficiency of dehumidification and humidification per unit time or per unit time can be improved.

In this embodiment, the case in which the suction damper 22 and the blowout damper 27 are provided as the dampers for switching the air path 14 is shown. However, the number of the dampers is not limited to two, and may be one or more. It is also conceivable. For example, when the function of the air conditioner is limited to dehumidification, if the suction side of the air passage 14 is connected only to the room, circulation of room air and discharge of desorbed air to the outside can be performed. Function can be performed. Accordingly, the damper only needs to have one blowout damper 27.

[0032]

As described above, according to the air quality controller of the present invention, easy-to-use dehumidification, humidification, and ventilation that do not require the processing of water supply and drain water can be realized with one unit, and the air conditioner can be easily installed. The air flowing into the air gap can reduce the temperature of the air blown into the room and the temperature of the air path surface, and the amount of heat accumulated inside the main body is reduced, so that the adsorbent is less susceptible to the influence of heat, and when entering the adsorption process Since the adsorbent can be quickly cooled by the cooling air, the adsorption phenomenon proceeds quickly, and the dehumidifying and humidifying ability is improved.

Further, in the case where a rectifying plate is provided on the upstream side of the suction section, even if the blower and the suction section are arranged close to each other, the air can be uniformly blown into the suction section and the like, so that the equipment is compact. In addition, desorption and adsorption of moisture by the adsorbent can be efficiently performed, and dehumidification and humidification performance can be further improved.

[Brief description of the drawings]

FIG. 1 is a structural diagram of an air quality controller in one embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a suction unit of the air quality controller.

FIG. 3 is an enlarged perspective view of a suction unit in the second embodiment.

FIG. 4 is a sectional view showing a conventional dry dehumidifier.

FIG. 5 is an enlarged perspective view showing a main part of the dry dehumidifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Adsorbent 13 Heater 14 Air path 15 Rectifier plate 16 Adsorption part 17 Blower 22 Suction damper 27 Blow-out damper 28 Controller T Void

Continuation of front page (72) Inventor Yasuaki Tawa 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 6/08 F24F 3 / 14

Claims (3)

(57) [Claims] 1. An air passage, an adsorbing portion including an adsorbent and a heater disposed in the air passage, a blower for sending air to the adsorbing portion, and a damper for switching the air passage between an indoor side and an outdoor side. And a controller that alternately repeats an adsorption step of adsorbing moisture to the adsorbent and a desorption step of desorbing adsorbed moisture of the adsorbent by interlocking control of the heater, the blower, and the damper. An air quality controller, wherein the adsorbent is arranged and provided with a gap between its outer periphery and an air passage. 2. An air path, and an adsorbing section comprising an adsorbent and a heater disposed with a gap between the air path and the air path,
A blower for sending air to the adsorbing section, a damper for switching the air passage between the indoor side and the outdoor side, and an adsorbing step of adsorbing moisture to the adsorbent by interlocking control of the heater, the blower, and the damper. A controller for alternately and repeatedly performing a desorption step of desorbing adsorbed moisture from the adsorbent, and a flow straightening plate disposed upstream of the air passage. 3. The air conditioner according to claim 1, wherein the adsorbent provided with a gap in the air path has a protective case on an outer periphery.