JP3089178B2 - Dry dehumidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a home or industrial dry dehumidifier. More specifically, the present invention relates to a dry dehumidifying and dehumidifying device that can be made compact and can automatically optimize indoor humidity.

[0002]

2. Description of the Related Art Conventionally, in order to optimize indoor humidity, various dry dehumidifiers that do not require supply or replenishment of water have been proposed. For example, JP-A-63-2
Japanese Patent No. 86634 discloses a dry dehumidifying / humidifying apparatus as shown in FIG. As shown in FIG. 4, this dry dehumidifying and humidifying apparatus includes a rotatable suction rotor 21 made of an adsorbent having an adsorbing section for adsorbing moisture and a desorbing section for desorbing moisture, and a rotational driving force applied to the adsorbing rotor 21. Drive motor 26 for applying air, and first blower 2 for sucking air from inside and outside the room
4. Second air blower 25, first air path 22 and second air path 23 for introducing air from inside and outside the room, heater 30 for heating sucked air, and air path for switching the air path The air conditioner includes a first switching unit 27, an air passage second switching unit 28, and an air passage control switching unit 29 that controls both air passage switching units according to the operation content.

When the humidifying operation is performed by the dry-type dehumidifying device having the above structure, the air sucked from the outdoor is sucked by the suction rotor 2.
The air path control switching section 29 controls the air path first switching section 27 and the air path second switching section 28 so that the air is exhausted to the outside after passing through the first suction section. Therefore, moisture in the air sucked from the outside of the room is adsorbed by the adsorbing portion of the adsorbent. At this time, the air sucked from the room is heated by the heater 30 to become hot air, and the hot air passes through the desorbing section of the adsorbent to desorb the adsorbed moisture. Dry humidification is performed by supplying the air with this moisture into the room.

[0004]

However, the above-mentioned conventional dry humidifier has the following problems. That is, in order to switch the operation from dehumidification to humidification or vice versa, an air path switching unit is required in the air path, and there is a problem that it is difficult to reduce the size of the apparatus. In addition, there is no means for controlling the rotation speed of the suction rotor, so that it is difficult to obtain high suction efficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. It is possible to reduce the size of the apparatus and adjust the humidity in as short a time as possible to achieve a comfortable humidity state. It is an object of the present invention to provide a dry dehumidification device capable of performing the above-mentioned operations.

[0006]

A first gist of the present invention is as follows.
A rotatable suction rotor made of an adsorbent having an adsorbing portion for adsorbing moisture and a desorbing portion for desorbing moisture, a driving means for applying a rotational driving force to the adsorbing rotor, and a device for sucking air from a room. An indoor air blower for supplying air to the room after passing through the suction rotor, an outdoor exhaust blower for sucking air from the outside and passing the air through the suction rotor and exhausting the air, and an indoor air blower for the indoor air blower. An indoor air passage for supplying air sucked from the inside to the room through the suction rotor, and an outdoor air passage for exhausting air sucked from outside by the outdoor exhaust blower to the outside through the suction rotor. In the dry dehumidifying device provided with, in the indoor air passage and the outdoor air passage, and,
An indoor air heating source for heating the air sucked from the room and an outdoor air heating source for heating the air sucked from the outside are arranged on the upstream side of the suction rotor, and both the heating sources are ON-OFF controlled. It is a dry dehumidifying and drying apparatus characterized in that it is possible.

According to a second aspect of the present invention, in the first aspect, in the case of dehumidification, the air sucked from the room is passed through the adsorption rotor without operating the indoor air heating source to remove the moisture. While adsorbing the water, the outdoor air heating source is operated to heat the air sucked from the outdoor to release the water adsorbed on the adsorption rotor by the hot air obtained and exhaust the air to the outside. In the case of humidification, the air sucked from outside is passed through the adsorption rotor to adsorb moisture without operating the outdoor air heating source, and the indoor air heating source is operated to suck air from the room. A heating control unit that controls both heating sources so as to desorb moisture adsorbed on the adsorption rotor by hot air obtained by heating the air and supply air into the room. Dry dehumidification It is the location.

According to a third aspect of the present invention, in the first aspect, an indoor air humidity sensor for detecting humidity in air sucked from a room is provided upstream of the indoor air heating source. If the humidity detected by the indoor air humidity sensor is higher than the upper limit of the preset comfortable humidity range at room temperature at the time of the detection, the air sucked from the outdoor by operating only the outdoor air heating source is operated. The water absorbed by the adsorption rotor is desorbed by the warm air obtained by heating the air, and the air is exhausted to the outside of the room to perform dehumidification.On the contrary, when the temperature is lower than the lower limit, only the indoor air heating source is used. Heating for controlling both heating sources so as to deactivate the moisture adsorbed on the adsorption rotor by hot air obtained by operating the air sucked from the room and heating the air to supply air to the room and humidify the room. The control unit was provided Which is a dry dehumidification apparatus characterized.

According to a fourth aspect of the present invention, in the third aspect, an outdoor air humidity sensor for detecting humidity in air sucked from the outdoor is further provided upstream of the outdoor air heating source. When the humidity in the air detected by the indoor air humidity sensor at the time of dehumidification is higher than the upper limit value of a preset reference range at room temperature at the time of the dehumidification, the suction rotor is sometimes used. A rotation speed control unit for controlling the driving means so as to increase the rotation speed of the suction rotor and, if the rotation speed is lower than the lower limit, to reduce the rotation speed of the suction rotor. It is a humidifier.

[0010]

According to a first aspect of the present invention, there is provided an indoor air heating source for heating air sucked from a room in an indoor air passage and an outdoor air passage and upstream of a suction rotor. An outdoor air heating source for heating air sucked from the outside is provided, and both heating sources can be turned on and off. Therefore, when the indoor air heating source or the outdoor air heating source is operated, the suction rotor is heated. At this time, an operation of adsorbing or desorbing water is performed.

According to a second aspect of the present invention, in the first aspect, a heating control section for controlling an indoor air heating source and an outdoor air heating source is provided. By activating either the heat source or the outdoor air heating source, indoor humidification or dehumidification is performed.

According to a third aspect of the present invention, in the first aspect, an indoor air humidity sensor for detecting humidity in air sucked from the room is provided upstream of the indoor air heating source. Since a heating control unit for controlling the indoor air heating source and the outdoor air heating source is provided, the heating control unit compares the detected value with a preset comfort humidity range, and based on the comparison, compares the comfort humidity range. Is conditioned.

According to a fourth aspect of the present invention, in the third aspect, an outdoor air humidity sensor for detecting humidity in air sucked from outside is further provided upstream of the outdoor air heating source. Since the rotation speed control unit for controlling the driving means for applying a rotational driving force to the suction rotor is provided, the rotation speed of the suction rotor is controlled according to the humidity of the air to be suctioned.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of a dry dehumidifying / humidifying apparatus according to the present invention. As shown in FIG. 1, the dry dehumidifying apparatus according to the present invention comprises a rotatable adsorption rotor 1 made of a solid adsorbent equally divided into an adsorption section for adsorbing moisture and a desorption section for desorbing moisture. A rotary drive motor 6 for applying a rotational driving force to the suction rotor 1, an indoor air blower 4 for suctioning air from the room and passing the air through the suction rotor 1, and then supplying air to the room, and suctioning air from the outside. Outdoor exhaust blower 5 that exhausts air after passing through suction rotor 1
And an indoor air passage 2 for supplying air drawn into the room from the room by the indoor air blower 4 to the room through the suction rotor 1, and air sucked from the outside by the outdoor exhaust blower 5 to the outside through the suction rotor 1. And an outdoor air passage 3 for exhausting air to the outside.

Further, in the indoor air passage 2 and the outdoor air passage 3 of the dry dehumidifying / humidifying apparatus according to the present invention,
An indoor air heater 10 for heating the air sucked from the room and an outdoor air heater 11 for heating the air sucked from the outside of the room are provided on the upstream side of the suction rotor 1, respectively. OFF control is possible. The indoor air heater 2 and the outdoor air heater 11 are located in the indoor air air passage 2 and the outdoor air air passage 3.
A humidity sensor for detecting the humidity in the sucked air, that is, an indoor air humidity sensor 7 and an outdoor air humidity sensor 8 are provided on the upstream side. The heater control unit 9 is connected to control the indoor air heater 10 and the outdoor air heater 11, and the rotation speed control unit 12 is connected to control the rotation drive motor 6. The solid adsorbent is not particularly limited, and may be, for example, a solid adsorbent disclosed in JP-A-63-286634.

The dehumidifying function of the dry dehumidifying and humidifying apparatus having the above-mentioned configuration will be described with reference to the drawings. First, the heater controller 9 turns off the indoor air heater 10 and turns off the outdoor air heater 11.
To ON. Thereby, in the suction rotor 1 through which the air introduced into the two air passages 2 and 3 is equally divided and passes, a portion through which the air sucked from the room and introduced into the indoor air passage 2 passes is formed by the suction unit. The part through which the air sucked from the outdoor and introduced into the outdoor air passage 3 passes is a desorption part. The air sucked from the room by the room air supply blower 4 and introduced into the room air passage 2 passes through the suction rotor 1 to adsorb its moisture to become low-humidity air, and then is supplied to the room. . On the other hand, the air sucked from the outdoor by the outdoor exhaust blower 5 and introduced into the outdoor air passage 3 is:
After passing through the operating outdoor air heater 11, the temperature becomes high, and the hot air obtained thereby desorbs moisture adsorbed in the adsorption rotor 1 to become high-humidity air and is then exhausted to the outside. .

Next, the humidifying function will be described. First, the heater control unit 9 turns on the indoor air heater 10 and the outdoor air heater 1.
Turn 1 off. Thereby, in the suction rotor 1 through which the air introduced into the two air passages 2 and 3 is equally divided and passes, a portion through which the air sucked from the room and introduced into the indoor air passage 2 passes Becomes the desorption section,
The portion through which the air sucked from the outside and introduced into the outdoor air passage 3 passes is the suction portion. The air sucked from the outside by the outdoor exhaust blower 5 and introduced into the outdoor air passage 3 passes through the adsorption rotor 1 to adsorb its moisture to become low-humidity air, and then is exhausted to the outside. On the other hand, the air sucked from the room by the room air supply blower 4 and introduced into the room air passage 2 passes through the operating room air heater 10 to become high temperature. After the moisture adsorbed on the air is desorbed into high-humidity air, the room is supplied with air.

The use of the indoor air humidity sensor 7 to keep the indoor humidity within a comfortable range will be described. A comfortable humidity range is set in advance from the correlation between room temperature and humidity as shown in FIG. 2, and this comfortable humidity range is stored in a microcomputer (not shown) in the apparatus. Indoor air blower 4
The humidity of the air sucked from the room and introduced into the indoor air passage 2 is detected by the indoor air humidity sensor 7, and the obtained detected value is compared with the comfort humidity range stored in the microcomputer by the heater control unit 9. Is compared. If the humidity is higher than the upper limit of the comfortable humidity range at room temperature at this time, it is determined that dehumidification is necessary, and the heater control unit 9 turns off the indoor air heater 10 and turns off the outdoor air heater 11.
N, the above-described dehumidifying operation is performed. Conversely, when the humidity is lower than the lower limit of the comfortable humidity range, it is determined that humidification is necessary, and the heater control unit 9 turns on the indoor air heater 10 and turns off the outdoor air heater 11, and the above-described operation is performed. Perform humidification operation.

The improvement of the suction efficiency of the suction rotor 1 using the outdoor air humidity sensor 8 will be described. Figure 3 shows the reference range based on the correlation between the suction rotor and the outlet air humidity.
And the reference range is stored in a microcomputer (not shown) in the apparatus. The humidity of the air to be adsorbed is detected by the outdoor air humidity sensor 8 during the humidifying operation and by the indoor air humidity sensor 7 during the dehumidifying operation, and the rotation speed control unit 12 stores the obtained detection value and the microcomputer to store the detected value. Comparison with the existing reference range. At this time, if the detected value is higher than the upper limit of the set reference range, it is determined that the rotation speed of the suction rotor 1 needs to be reduced, and the rotation control unit 12 sends the rotation To reduce the rotation speed. On the other hand, when the rotation speed is lower than the lower limit value, it is determined that the rotation speed of the suction rotor 1 needs to be increased, and the rotation control unit 12 increases the rotation speed of the suction rotor 1 via the rotation drive motor 6. That is, as shown in FIG. 4, this is smaller than the reference cycle time (the time required for the suction rotor 1 to make one rotation) when the humidity of the air to be suctioned is within the set reference range.
When the detected value is higher than the upper limit of the set reference range, the optimal cycle time (the cycle time at which the outlet air humidity is the lowest, that is, the adsorption efficiency is the highest) is short, and when the detected value is lower than the lower limit, the optimal cycle time is long. It is.

[0020]

According to the first aspect of the present invention, there is provided indoor air heating for heating air sucked from the room in the indoor air passage and the outdoor air passage and upstream of the suction rotor. A source and an outdoor air heating source for heating the air sucked from the outside are arranged, and both heating sources are turned on and off.
By making it controllable, by operating the indoor air heating source or the outdoor air heating source, the adsorption or desorption operation of moisture can be performed in the adsorption rotor, which is necessary for the conventional dry dehumidifier. This eliminates the need for a conventional air path switching unit, and makes it possible to reduce the size of the apparatus.

According to a second aspect of the present invention, in the first aspect, a heating control section for controlling an indoor air heating source and an outdoor air heating source is provided, so that an indoor heating source is controlled based on an instruction from the heating control section. Either the air heating source or the outdoor air heating source can be operated, thereby humidifying or dehumidifying the room.

According to a third aspect of the present invention, in the first aspect, an indoor air humidity sensor for detecting humidity in air sucked from a room is provided upstream of the indoor air heating source. By providing a heating control unit that controls the air heating source and the outdoor air heating source, the heating control unit can compare the detected value with the comfortable humidity at room temperature at that time and perform either dehumidification or humidification. It is possible to automatically create a comfortable humidity state.

According to a fourth aspect of the present invention, in the third aspect, an outdoor air humidity sensor for detecting humidity in air sucked from outside is further provided upstream of the outdoor air heating source. By providing a rotation speed control unit that controls a driving unit that applies a rotational driving force to the suction rotor, the rotation speed of the suction rotor can be finely adjusted according to the detected humidity, and higher suction efficiency can be obtained. Becomes possible.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of a dry dehumidifying / humidifying apparatus according to the present invention.

FIG. 2 is a diagram showing a correlation between room temperature and humidity.

FIG. 3 is a diagram showing a correlation between a cycle time of an adsorption rotor and an outlet air humidity.

FIG. 4 is a configuration diagram showing a conventional dry dehumidification device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adsorption rotor 2 Indoor air path 3 Outdoor air path 4 Indoor air supply blower 5 Outdoor exhaust blower 6 Rotary drive motor 10 Indoor air heater 11 Outdoor air heater

Claims (2)

(57) [Claims] 1. A rotatable suction rotor comprising an adsorbent having an adsorbing portion for adsorbing moisture and a desorbing portion for desorbing moisture, a driving means for applying a rotational driving force to the adsorbing rotor,
An indoor air blower that sucks air from the room and supplies air to the room after passing through the suction rotor, and an outdoor exhaust blower that sucks air from the outside and discharges the air to the outside after passing through the suction rotor, An indoor air passage for supplying air drawn into the room from the room by the indoor air blower to the room through the suction rotor, and exhausting air sucked from the outdoor by the outdoor exhaust blower to the outside through the suction rotor. Dry air dehumidifying apparatus provided with an outdoor air passage for heating the air sucked from the room in the indoor air passage and the outdoor air passage, and on the upstream side of the adsorption rotor. and the outdoor air heating source for heating the air sucked from the indoor air heat source and the outdoor are respectively disposed, Ri further both heating source ON-OFF controllable der, the indoor air heat source Upstream, air sucked from the room
An indoor air humidity sensor is provided to detect air humidity
Together with the humidity detected by the indoor air humidity sensor
Is a predetermined comfortable humidity range at room temperature at the time of the detection.
If it is higher than the upper limit value of the outdoor air heating source,
To heat the air sucked from outside the room.
Desorbs moisture adsorbed on the adsorption rotor by trapped hot air
Exhaust air to the outside to dehumidify, and conversely, lower than the lower limit.
In this case, only the indoor air heating source is operated to
The warm air obtained by heating the air sucked from
The water adsorbed by the suction rotor is desorbed to supply air to the room.
A heating control unit that controls both heating sources to perform humidification
A dry dehumidification device characterized by that obtained. An outdoor air heating source is further provided upstream of the outdoor air heating source.
Outdoor air humidity sensor that detects humidity in air
And the outdoor air humidity during humidification
Sensor, when dehumidifying, by the indoor air humidity sensor.
Humidity detected in the air at room temperature at the time of the detection
If it is higher than the upper limit of the preset reference range,
Increase the rotation speed of the suction rotor, and conversely, from the lower limit
Lower, the rotation speed of the suction rotor is reduced.
2. A dry dehumidifying / drying apparatus according to claim 1 , further comprising a rotation speed control unit for controlling said driving means .