JP2002098353A - Humidity control ventilator - Google Patents

Abstract

(57) [Summary] In a humidity control ventilator equipped with a moisture absorption / desorption rotor, the input power of heating means for supplying heated air to the moisture absorption / desorption rotor is reduced, energy saving is achieved, and running costs are reduced. And reduce the size and weight of the device. SOLUTION: A sensible heat exchanger (17) for exchanging heat between air passing through both of an air supply path (RS) and an exhaust path (RE), and an air supply path ( RS) and a moisture absorption / desorption rotor (19) rotatably arranged across the exhaust path (RE), and regeneration for separating the exhaust path (RE) into a regeneration air path (25) and a direct exhaust path (26). An air volume adjusting plate (23) and a heating means (20) arranged in the regeneration air path (25) for supplying heated air to the moisture absorption / release rotor (19) are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidity control ventilator that performs ventilation while reducing the change in room temperature and that enables humidity adjustment.

[0002]

2. Description of the Related Art There is a humidity control ventilator that sucks in air from the outside to perform humidification or dehumidification, and supplies air with adjusted humidity to a room. This is provided with an air supply path for supplying outdoor air to the room and an exhaust path for discharging room air to the outside of the room. An air supply fan for sucking outdoor air and supplying the indoor air is arranged in the air supply path, and an exhaust fan for discharging indoor air to the outside of the air is arranged in the exhaust path. At this time, by providing a heat exchanger such as a sensible heat exchanger between the air supply path and the exhaust path, it is possible to provide a configuration in which the room temperature is hardly changed by the influence of the outside air temperature.

In the air supply path, a humidifier for humidifying the sucked outdoor air and a dehumidifier for dehumidifying are arranged. As the humidifier, for example, a moisture permeable membrane humidifier configured by arranging a plurality of moisture permeable membrane pipes in parallel with each other and disposing humidifying water around the moisture permeable membrane pipe can be used. The moisture-permeable membrane is made of a synthetic resin material having a large number of micropores, and does not allow liquid moisture to pass through, but allows only moisture converted to water vapor to pass. In a moisture permeable membrane humidifier provided with a moisture permeable membrane pipe made of such a moisture permeable membrane material, the air passing through the inside of the moisture permeable membrane pipe is humidified by water vapor to generate humidified air. The outdoor air sucked in by the air supply fan is humidified when passing through the moisture permeable membrane pipe and supplied to the room.

A dehumidifier is an ordinary air conditioner (air conditioner)
It is conceivable to construct a refrigerant circuit similar to that described above and to make the heat exchanger on the indoor unit side act as a condenser. An outdoor unit is equipped with an outdoor heat exchanger, a compressor, a decompressor, etc., and an indoor heat exchanger is arranged on the indoor unit, and a refrigerant consisting of a compressor, an outdoor heat exchanger, a decompressor, and an indoor heat exchanger. Configure the circuit. Just like when cooling an air conditioner, if you operate the compressor so that the outdoor heat exchanger becomes an evaporator and the indoor heat exchanger becomes a condenser,
The sucked outdoor air can be dehumidified and supplied to the room.

[0005]

In the humidity control ventilator described above, since an outdoor unit is required, it is necessary to secure an installation space for the outdoor unit, and to connect the indoor unit and the outdoor unit. Work at the time of construction becomes complicated.

On the other hand, it is conceivable to construct a dehumidifier using a porous moisture-absorbing material such as zeolite that absorbs moisture in the air and releases the absorbed moisture when heated. In this case, the moisture-absorbing material is formed into a disc-shaped moisture-absorbing / discharging rotor, and the moisture-absorbing / discharging rotor is rotatably disposed in the humidity control ventilation device. At this time, the moisture absorbing material is arranged so that a part of the moisture absorbing material is located in the air flow passing through the air supply path, and a heater for heating the moisture absorbing and desorbing rotor and the discharged moisture are exhausted to the other portions. Provide an exhaust fan for

In a humidity control ventilator having such a moisture absorption / desorption rotor, a large amount of heat is required to heat the moisture absorption / desorption rotor, and the input power to the heater is increased.
For this reason, power consumption by the heater increases, and it is difficult to achieve energy saving.

When the moisture absorption / desorption rotor is arranged so as to be orthogonal to the air flow passing through the air supply passage, the inner diameter of the air supply passage needs to correspond to the size of the moisture absorption / desorption rotor. There is a problem that the entire device becomes large. Such a humidity control ventilator is often installed above the ceiling, and it is desirable that the device be thin and compact. If the size depends on the size of the moisture absorption / release rotor as described above, it is difficult to form such a thin and compact shape.

According to the present invention, in a humidity control ventilator provided with a moisture absorption / desorption rotor, the input power of a heating means for supplying heated air to the moisture absorption / desorption rotor is reduced to save energy and reduce running costs. Another object of the present invention is to reduce the size and weight of the device.

[0010]

SUMMARY OF THE INVENTION A humidity control ventilating apparatus according to the present invention comprises an air supply path, an exhaust path, an air supply fan, an exhaust fan, a sensible heat exchanger, a moisture absorption / desorption rotor, and a rotor. A drive unit, a regeneration air volume adjusting plate, and a heating unit are provided. The air supply path is for supplying air from outside to the indoor side. The exhaust path is for discharging room air to the outside of the room. The air supply fan is arranged in the air supply path. The exhaust fan is disposed in the exhaust path. The sensible heat exchanger is disposed over the air supply path and the exhaust path, and exchanges heat between the air passing through both paths. The moisture absorbing / releasing rotor is made of a moisture absorbing material that adsorbs moisture in the air and releases the adsorbed moisture by being heated, and is rotatably disposed over an air supply path and an exhaust path. The rotor driving means rotationally drives the moisture absorption / desorption rotor. The regenerative air volume adjusting plate has an exhaust path, a regenerating air path through which a regenerating air flow of the air flow generated by the exhaust fan that passes through the moisture absorbing and releasing rotor passes, and a regenerating air path that does not pass through the moisture absorbing and releasing rotor. Into a direct exhaust path through which the non-regenerative air flow discharged to the air passes. The heating means is disposed in the regeneration air path, and supplies heated air to the moisture absorption / release rotor.

In this case, the ratio of the flow rate of the regeneration air flow passing through the regeneration air path to the flow rate of the non-regeneration air flow passing directly through the exhaust path can be appropriately adjusted by the regeneration air flow rate adjusting plate. The temperature of the regeneration airflow can be kept high without increasing the input power to the device more than necessary, and power can be saved.

Here, the regeneration air volume adjusting plate can be positioned in the exhaust path so that the air volume of the regeneration air flow is appropriate in accordance with the capabilities of the exhaust fan and the heating means. In this case, by setting the installation position of the regeneration air volume adjusting plate in advance in accordance with the capabilities of the exhaust fan and the heating means, it is possible to reduce the input power to the heating means and provide a humidity control ventilator with an energy-saving design. It becomes possible.

Further, the moisture absorption / desorption rotor can be arranged such that the moisture absorption part arranged in the air supply path of the moisture absorption / desorption rotor is inclined with respect to the airflow passing through the air supply path. In this case, the inner diameter areas of the air supply path and the exhaust path can be reduced, and the size of the apparatus can be reduced.

Further, the sensible heat exchanger has two pairs of opposing open end faces, and each open end face is arranged so as to be inclined with respect to the air flow passing through the air supply path and the exhaust path. It is possible to adopt a configuration in which the moisture release rotor is arranged parallel to one open end face of the sensible heat exchanger.

In this case, the resistance to the air flow passing through the opening end face of the sensible heat exchanger parallel to the moisture absorption / desorption rotor and the moisture absorption / desorption rotor can be reduced, and an efficient flow path is formed. it can.

Further, the moisture absorption / desorption rotor can be inclined in a range of 30 ° to 60 ° with respect to the air flow passing through the air supply passage and the exhaust passage. In this case, the inner diameter areas of the air supply path and the exhaust path can be reduced, and the size of the apparatus can be reduced.

Further, it is possible to unitize the moisture absorption / release rotor, the rotor driving means and the heating means. In this case, by unitizing the dehumidifying unit including the moisture absorbing / desorbing rotor, the rotor driving unit, and the heating unit, it is possible to share parts with a ventilating apparatus that does not have a dehumidifying function. It is possible to increase efficiency and reduce production costs.

Further, a humidifier may be further provided downstream of the sensible heat exchanger in the air supply path. In this case, it is possible to supply the humidified air to the room by stopping the operation of the dehumidifying unit composed of the moisture absorbing / releasing rotor, the rotor driving means, and the heating means and causing the humidifying means to act.

This humidifying means is provided with humidifying water around a plurality of moisture permeable membrane pipes arranged in parallel to supply moisture to air passing through the inside of the moisture permeable membrane pipe. It can be composed of units.

In this case, it is possible to generate humidified air by humidifying water disposed around the moisture permeable membrane pipe.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A humidity control ventilator to which one embodiment of the present invention is applied will be described with reference to the drawings. FIG. 1 is a side sectional view showing a schematic configuration of the humidity control ventilator.

The humidity control ventilator 1 includes a casing 2 formed in a substantially rectangular parallelepiped shape. This casing 2
Is an outside air inlet 11 for introducing outdoor air (OA).
An indoor air supply port 12 for supplying the sucked outdoor air (OA) to the indoor side as indoor air supply (SA), an indoor air inlet 13 for introducing indoor air (RA), and the sucked indoor air. An outdoor exhaust port 14 for exhausting (RA) to the outside as outdoor exhaust (EA) is provided.

The interior of the casing 2 is hollow, and an air supply path (RS) from the outside air inlet 11 to the indoor supply port 12 and an exhaust path (RS) from the indoor air inlet 13 to the outdoor outlet 14 ( RE) is formed.

An outside air inlet 11 is provided in the air supply path (RS).
An air supply fan 15 for generating an air flow for supplying the outdoor air introduced from the inside to the indoor supply port 12 is provided. The air supply fan 15 is constituted by a centrifugal fan, and is provided near the indoor supply port 12 in this example.

In the exhaust path (RE), room air introduced from the room air inlet 13 is supplied to the outside air outlet 14.
Fan 16 for generating an air flow for exhausting air from
Is provided. The exhaust fan 16 can be constituted by a centrifugal fan similarly to the air supply fan 15, and is provided near the outdoor outlet 14 here.

The casing 2 has an air supply path (R
A sensible heat exchanger 17 is provided to extend over S) and the exhaust path (RE). The sensible heat exchanger 17 includes a sensible heat exchange element 33 as shown in FIG.
Are laminated through the intermediary. Sensible heat exchange element 33
Is formed by bonding a flat liner 31 and a corrugated corrugated plate 32 by heat welding, and adjacent sensible heat exchange elements 33 are arranged so as to be orthogonal to each other. The spacer 34 is a sensible heat exchange element 3
The third liner 31 has the same flat plate shape.
The liner 31, the corrugated plate 32 and the spacer 34 constituting the sensible heat exchange element 33 are all made of a synthetic resin such as polyethylene.

Sensible heat exchange element 33 and spacer 3
As shown in FIG. 3, the sensible heat exchanger 17 in which the layers 4 are stacked has a substantially rectangular parallelepiped shape. A pair of opposing open end surfaces 4
In 1 and 42, the openings of the sensible heat exchange elements 33 of the first layer, the third layer, the fifth layer,... From the top are exposed. Similarly, a pair of opposed open end surfaces 4
3 and 44, the openings of the sensible heat exchange elements 33 of the second, fourth, sixth,... Layers from the top are exposed. As a result, when the air flow collides toward the opening end surface 42 (arrow A), the first layer, the third layer,
It passes through the sensible heat exchange element 33 of the layer, the fifth layer,... And is blown out from the opening end face 41 (arrow B). Similarly, when the airflow collides toward the opening end face 44 (arrow C), the airflow passes through the sensible heat exchange element 33 of the second, fourth, sixth,... Are blown out from the opening end face 43 (arrow D).

The sensible heat exchanger 17 thus constructed
As shown in FIG. 1, for example, a pair of open end faces 4
1 and 42 are inclined in the casing 2 such that the pair of open end faces 43 and 44 face the airflow in the air supply path (RS) and the other pair of open end faces 43 and 44 face the airflow in the exhaust path (RE). Placed. The inclination angle of the sensible heat exchanger 17 depends on the air supply path (R
The opening end faces 41 and 42 on the S) side are 30 ° to air flow.
Preferably, they are arranged at an angle of 60 °,
The one shown is arranged to form an angle of about 45 °.

A dehumidifying unit 18 is provided outside the sensible heat exchanger 17. The dehumidifying unit 18 includes a rotatable moisture absorbing / discharging rotor 19 and a drive motor (not shown) for rotating the moisture absorbing / discharging rotor 19.
And a heater 20 for generating heated air for regeneration of the moisture absorption / desorption rotor 19.

The moisture absorbing / releasing rotor 19 is made of a porous zeolite or the like having a property of adsorbing moisture in the air that comes into contact therewith and releasing the adsorbed moisture when heated. Constitutes the moisture absorbing section 21 located on the air supply path (RS), and the other half corresponds to the moisture releasing section 22 located on the exhaust path (RE).

The moisture absorbing / discharging rotor 19 has the moisture absorbing portion 21 disposed close to the opening end surface 42 existing in the air supply path (RS) of the sensible heat exchanger 17, and the rotating surface thereof has the opening end surface 42. Is set so as to be substantially parallel to

The heater 20 is disposed in the air flow introduced from the indoor air inlet 13 and after passing through the sensible heat exchanger 17, and controls the air flow toward the moisture release section 22 of the moisture absorption / desorption rotor 19. Heat.

In the exhaust path (RE), the sensible heat exchanger 17
The path leading from the exhaust fan 16 to the exhaust fan 16
3 and the exhaust passage partitioning plate 24 for the regeneration air passage 25
And is directly divided into an exhaust path 26. The heater 20 and the moisture release section 22 of the moisture absorption / desorption rotor 19 are connected to a regeneration air path 25.
Is located within.

The regeneration air volume adjusting plate 23 adjusts the proportion of the air volume introduced into the regeneration air path 25 from the air flow passing through the sensible heat exchanger 17. For example, the mounting position of the regeneration air volume adjusting plate 23 on the sensible heat exchanger 17 side is shown in FIG.
It is assumed that the user can select from. Regeneration air volume adjustment plate 2
In the case where the third mounting position is set on the sensible heat exchanger 17 side, an air volume of 20% of the air passing through the sensible heat exchanger 17 can be introduced into the regeneration air path 25. Similarly,
When the mounting position of the regeneration air volume adjusting plate 23 on the side of the sensible heat exchanger 17 is set to 〜, the air volume of 40%, 60%, and 80% of the air passing through the sensible heat Can be introduced. The mounting position of the regeneration air volume adjustment plate 23 on the sensible heat exchanger 17 side
It can be determined according to the capacity of the exhaust fan 16 and can be configured to be mounted at a position other than the illustrated positions.

In the humidity control ventilator 1 configured as described above, the airflow generated by the air supply fan 15 is supplied to the air supply path (R) from the outside air inlet 11 to the indoor supply port 12.
S). At this time, the outdoor air (OA) introduced from the outside air inlet 11 is supplied to the moisture absorbing portion 2 of the moisture absorbing and releasing rotor 19.
When passing through No. 1, the water is deprived and becomes dry air and flows into the sensible heat exchanger 17 side.

At the same time, the air flow generated by the exhaust fan 16 passes through an exhaust path (RE) from the indoor air inlet 13 to the outdoor outlet 14. At this time, a part of the air flow that has passed through the sensible heat
5 and is heated by the heater 20 and passes through the moisture release section 22 of the moisture absorption / release rotor 19. The moisture absorption / desorption rotor 19 is rotationally driven by a drive motor, and is provided with an air supply path (RS).
The portion where moisture is adsorbed by the moisture absorbing portion 21 is always the moisture releasing portion 22.
It is configured to move to. Therefore, when the air heated by the heater 20 passes through the moisture releasing section 22, the moisture adsorbed by the moisture absorbing / releasing rotor 19 is released to become humidified air. The humidified air is discharged from the outdoor outlet 14 to the outside of the room.

The amount of air introduced into the regeneration air passage 25 is adjusted by the regeneration air volume adjusting plate 23 and is controlled by the heater 20.
It is possible to maintain the temperature of the airflow to the moisture release section 22 of the moisture absorption / desorption rotor 19 at an appropriate temperature without increasing the input power to the air supply more than necessary.

In the sensible heat exchanger 17, the air supply path (RS)
The heat exchange is performed between the air flow in the inside and the air flow in the exhaust path (RE), and the difference between the temperature of the air supplied into the room from the indoor side supply port 12 and the room temperature is reduced. I have.

Since the moisture absorption / desorption rotor 19 is disposed in an inclined state in the supply path (RS) and the exhaust path (RE), the supply path (RS) and the exhaust path (RE) in the casing 2 are provided. Can be reduced in size, and the device can be downsized.

[Other Embodiments] (A) The dehumidifying unit 18 including the moisture absorbing / desorbing rotor 19, the heater 20, and the rotor driving motor can be integrally formed as a unit. In this case, it is possible to share parts with a ventilation device having no dehumidifying unit, thereby improving productivity and reducing production cost. (B) It is possible to provide a humidification unit downstream of the sensible heat exchanger 17 in the air supply path (RS). This humidification unit is composed of a moisture-permeable membrane humidification unit that distributes humidification water around a plurality of moisture-permeable membrane pipes arranged in parallel and supplies moisture to the air passing through the interior of the moisture-permeable membrane pipe. can do.

In this case, humidified air can be generated by the humidified water disposed around the moisture permeable membrane pipe. (C) Introduced outside air (OA) inside the outside air inlet 11
It is possible to provide a filter for filtering the. Further, a filter for filtering the introduced indoor air (RA) can be provided upstream of the sensible heat exchanger 17 in the exhaust path (RE). In any case, it is possible to prevent dust and dirt from adhering to the sensible heat exchanger 17 and the moisture absorption / desorption rotor 19.

[0042]

In the humidity control ventilator according to the first aspect of the present invention, the flow rate of the regeneration airflow passing through the regeneration air path by the regeneration airflow rate adjusting plate and the flow rate of the non-regeneration airflow passing directly through the exhaust path are determined. The ratio can be appropriately adjusted, the temperature of the regeneration air flow can be kept high without increasing the input power to the heating means more than necessary, and power saving can be achieved.

In the humidity control ventilator according to the second aspect, by setting the installation position of the regeneration air volume adjusting plate in advance in accordance with the capabilities of the exhaust fan and the heating means, the input power to the heating means can be reduced to save energy. It becomes possible to provide a humidity control ventilator of a design.

In the humidity control ventilator according to the third aspect, the inner diameter areas of the air supply path and the exhaust path can be reduced,
It is possible to reduce the size of the device. In the humidity control ventilating apparatus according to the fourth aspect, the resistance to the air flow passing through the opening end face of the sensible heat exchanger parallel to the moisture absorption / desorption rotor and the moisture absorption / desorption rotor can be reduced, and the efficiency can be improved. A good flow path can be configured.

In the humidity control ventilator according to the fifth aspect, the inner diameter areas of the air supply path and the exhaust path can be reduced,
It is possible to reduce the size of the device. In the humidity control ventilating apparatus according to the sixth aspect, the dehumidifying section composed of the moisture absorbing / desorbing rotor, the rotor driving means, and the heating means is unitized, so that a common component can be used with a ventilating apparatus having no dehumidifying function. It is possible to increase production efficiency and reduce production costs.

In the humidity control ventilating apparatus according to the seventh aspect, the operation of the dehumidifying section constituted by the moisture absorbing / desorbing rotor, the rotor driving means and the heating means is stopped, and the humidifying means is actuated so that the humidified air is introduced into the room. It becomes possible to supply.

In the humidity control ventilator according to the eighth aspect, humidified air can be generated by humidified water disposed around the moisture permeable membrane pipe.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a humidity control ventilator to which an embodiment of the present invention is applied.

FIG. 2 is an exploded perspective view of the sensible heat exchanger.

FIG. 3 is a perspective view showing a schematic configuration of a sensible heat exchanger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Humidity control ventilator 11 Outside air inlet 12 Indoor supply port 13 Indoor air inlet 14 Outdoor exhaust outlet 15 Air supply fan 16 Exhaust fan 17 Sensible heat exchanger 18 Dehumidification unit 19 Moisture absorption / desorption rotor 20 Heater 23 Regeneration Air volume adjustment plate

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kiyoto Hamaguchi 1000 Oya, Okamotocho, Kusatsu-shi, Shiga 2 Daikin Industries, Ltd. Shiga Works F-term (reference) 3L053 BC03 BC05 BC07

Claims (8)

[Claims] 1. An air supply path (RS) for supplying air from outside to the indoor side, and an exhaust path (RE) for discharging indoor air to the outdoor side.
And an air supply fan (1) disposed in the air supply path (RS).
5), and an exhaust fan (1) disposed in the exhaust path (RE).
6), a sensible heat exchanger (17) disposed over the air supply path (RS) and the exhaust path (RE), and performing heat exchange between air passing through both paths; Is made of a hygroscopic material that releases adsorbed moisture by being adsorbed and heated.
S) and a moisture absorption / desorption rotor (19) rotatably arranged across the exhaust path (RE); a rotor driving means for rotatingly driving the moisture absorption / desorption rotor (19); and an exhaust path (RE). The moisture absorption / desorption rotor (19) of the airflow generated by the exhaust fan (16).
And a direct exhaust path (2) through which a non-regenerating air flow discharged without passing through the moisture absorbing and releasing rotor (19) passes.
And a heating means (20) disposed in the regeneration air path (25) for supplying heated air to the moisture absorption / release rotor (19).
Humidity control ventilator. 2. The exhaust air flow adjusting plate (23) is configured to control the exhaust passage (RE) so that the air volume of the regeneration air flow is appropriate in accordance with the capabilities of the exhaust fan (16) and the heating means (20). The humidity control ventilator according to claim 1, which is positioned in: 3. An air supply path (R) of said moisture absorption / desorption rotor (19).
S) is located within the air supply path (R).
3. The moisture absorption / desorption rotor (19) is arranged so as to be inclined with respect to the air flow passing through S).
The humidity control ventilator according to item 1. 4. The sensible heat exchanger (17) has two pairs of opposed open end faces (41, 42, 43, 44), and each of the open end faces (41, 42, 43, 44) is provided with the supply end. An air flow passing through an air path (RS) and an exhaust path (RE), and being arranged so as to be inclined with respect to the air flow passing through the air path (RS) and the exhaust path (RE), wherein the moisture absorption / desorption rotor (19) is provided at one end face of the sensible heat exchanger (17). (4
4. The humidity control ventilator according to claim 3, which is arranged parallel to 2). 5. 5. The moisture absorption / desorption rotor (19) is inclined at an angle of 30 ° to 60 ° with respect to an air flow passing through the air supply path (RS) and the exhaust path (RE). The humidity control ventilator according to claim 3 or 4. 6. The humidity control ventilator according to claim 1, wherein said moisture absorbing / releasing rotor (19), rotor driving means and heating means (20) are unitized. 7. A humidifying means further provided on the downstream side of the sensible heat exchanger (17) in the air supply path (RS).
7. The humidity control ventilator according to any one of 6. 8. The humidifying means arranges humidifying water around a plurality of moisture permeable membrane pipes arranged in parallel and supplies moisture to air passing through the interior of the moisture permeable membrane pipe. The humidity control ventilator according to claim 7, which is a wet film humidification unit.