JPH04281132A - Dry type humidifier-dehumidifier - Google Patents

Abstract

PURPOSE:To provide a device having humidifying and dehumidifying functions, which can also ventilate, with saved energy without a need of disposal of fed water and drained water. CONSTITUTION:A dry type humidifier-dehumidifier is constituted of an absorbing part 1A in which a heating source 2 carries an absorbent 1, a fan 3, an air passage turn-over part 9 between an outdoor air feed port 5 and an indoor air feed port 7 arranged in the upstream of the fan 3, another air passage turnover part 10 between an outdoor air exhaust port 6 and an indoor air exhaust port 8 arranged in the downstream of the fan 3, and a control part 11. By the operation of the fan 3, after water from the outdoor air feed port 5 is absorbed by the absorbing part 1A and exhausted indoors, air from the indoor air feed port 7 is exhausted outdoors from the absorbing part 1A where the water is removed by heating. Thus, room dehumidifying ventilation is carried out. On the other hand, after water from the indoor air feed port 7 is absorbed by the absorbing part 1A is exhausted outdoors, air from the outdoor air feed port 5 is exhausted indoors from the absorbing part 1A where the water is removed by heating. Thus, room humidifying ventilation is carried out.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus that has a dehumidifying and humidifying function, does not require water supply or drain water treatment, and is also capable of ventilation.

0002

2. Description of the Related Art A conventional dry dehumidifying and humidifying device is disclosed, for example, in Japanese Patent Application Laid-Open No. 63-286634. As shown in FIG. 2, this device is composed of an adsorbent 1, a heater 2, a blower 3, and an air path switching section 4. In terms of the humidification function, during the adsorption operation, the air path switching unit 4 is set to pass outdoor air through the adsorbent 1 and then return to the outdoors, and at this time, the outdoor air is adsorbed by the moisture adsorbent 1. Ru. During the regeneration operation, the air path switching unit 4 switches the air path after the indoor air passes through the adsorbent 1.
It is set to return indoors again. At this time, when indoor air is heated by the heater 2 and passes through the adsorbent 1,
The air heats the adsorbent 1 and desorbs the adsorbed moisture. Dry humidification can be performed by supplying the air together with this moisture into the room.

0003

[Problems to be Solved by the Invention] However, in the above configuration, (1) during regeneration, the air humidity supplied to the adsorbent 1 is supplied at a temperature higher than that during adsorption operation, so that the air humidity is Thermal swing absorption (Thermal S
wing adsorption), but the heat exchange loss when the regeneration air is heated by the heating source,
There is heat radiation loss when hot air passes through the air path, heat loss when hot air heats the adsorbent, etc. For this reason, energy consumption during reproduction increases, and compared to other humidification methods, the running cost (nearly 10 times higher than the ultrasonic method) is high and the price is not competitive. Furthermore, since the adsorbent is heated indirectly, the regeneration time becomes long, and because the adsorption operation and the regeneration operation are performed alternately, the humidification ability is affected by the regeneration time, and the ability cannot be fully demonstrated. In order to guarantee the capacity, it is necessary to increase the amount of adsorbent.

(2) Although a duct is provided to communicate indoor and outdoor spaces, it is only possible to dehumidify or humidify the indoor air, and it is not possible to control other air components. In other words, despite the construction work involved, it was not possible to control air components other than moisture.

(3) During humidification, the moisture and nitrogen adsorbed on the adsorbent are supplied into the room, so the indoor humidity increases, but the oxygen concentration decreases. It had problems such as:

The present invention solves these conventional problems and is a dry dehumidifying device that consumes less power and can control air components other than moisture.

[0007]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides an adsorption section comprising an adsorption material and a heating source incorporated in the adsorption material, an air blower for supplying air to the adsorption section, and an air blower for supplying air to the adsorption section. A plurality of air supply ports provided upstream of the adsorption section, a plurality of exhaust ports provided downstream of the adsorption section, and a plurality of air supply ports and exhaust ports provided, each with an air path on the indoor side or the outdoor side. and a control section that controls the suction section, the blower, and the switching section. , instructing an adsorption operation to supply air into the room, feeding indoor air to the adsorbent, and activating a heating source;
a regeneration operation instruction for desorbing moisture adsorbed in the adsorbent and exhausting it outdoors; and an adsorption operation instruction for passing air sucked from indoors through the adsorption section to adsorb moisture and exhaust it outdoors. , the regeneration operation instructions include sending outdoor air into the adsorption section, activating the heating source, desorbing moisture adsorbed by the adsorption material, and supplying air into the room.

[0008]

[Function] With the above-described structure, the present invention can perform dehumidifying ventilation and humidifying ventilation in a room by repeating the adsorption and regeneration operations.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1A is an adsorbent, which is a heat source 2.
and the adsorbent 1 are supported and formed into a corrugated shape. Reference numeral 3 denotes a blower, which is disposed upstream of the adsorption section 1A. 4 is a charged filter, which is provided upstream of the blower 3. 5 is an outdoor air supply port that takes in outdoor air; 6 is an outdoor exhaust port that exhausts air outdoors;
The exhaust port 6 is a double pipe. 7 is an indoor air supply port 6, and 8 is an indoor exhaust port. 9 is the air supply switching section,
Select whether to supply air from the indoor side or the outdoor side. Reference numeral 10 denotes an exhaust switching unit, which selects whether the exhaust is to be directed to the indoor side or the outdoor side. Reference numeral 11 denotes a control unit that controls ON/OFF control of the heating heat source 2, operation of the blower 3, and each switching unit 9 and 10.

[0011] Based on the above configuration, the dehumidifying ventilation function will be explained. The control unit 11 first desorbs the moisture adsorbed on the adsorbent 1 (even if the blower 3 is not operated, the moisture in the air is always adsorbed on the adsorbent 1 due to diffusion,
The air supply switching unit 9 (which must first remove this moisture) closes the outdoor side, and the exhaust switching unit 10 closes the indoor side, and operates the blower 3 and heating source 2. The indoor air is heated by the heating source 2 to release moisture desorbed from the adsorbent 1 from the adsorbent 1, and is exhausted from the outdoor exhaust port 6. At this time, the exhaust air contains moisture received from the adsorbent 1 and indoor air quality components. When time passes and the water in the adsorbent 1 disappears, the control unit 11 turns off the power to the heating source 2 and operates only the blower 3, thereby lowering the temperature of the adsorbent 1 to a level at which water can be adsorbed. Next, in order to shift to the suction operation, the control unit 11 stops the operation of the blower, causes the air supply switching unit 9 to close the indoor side, and causes the exhaust switching unit 10 to close the outdoor side. After that, the blower 3 is operated. As a result, the outdoor air supply port 5
The charged filter 4 adsorbs dust, floating particles, etc. from the outdoor air, and the adsorbent 1 adsorbs moisture, and the air is supplied indoors as clean, dry air. By repeating the above regeneration operation and adsorption operation, dehumidifying ventilation is achieved. During this operation, the heating source 2 directly heats the adsorbent 1, which enables energy-saving dehumidifying ventilation with extremely low heat loss, reduces indoor humidity, and also reduces NO and CO2.
, CO, odor components, etc. can be reduced. At this time, the air supply switching section 9 and the exhaust switching section 10 may both block the outdoor air only during the adsorption operation, thereby increasing the dehumidification effect.

Next, humidification ventilation will be explained. During humidified ventilation, the control unit 11 starts with a suction operation. (The adsorbent 1 has moisture adsorbed by diffusion, but in order to adsorb it to near the saturated adsorption amount, it first starts with an adsorption operation. Therefore, the first adsorption operation time is shorter than the subsequent adsorption operation times. ). Air supply switching section 9
closes the outside of the room, and the ventilation switching unit 10 closes the inside of the room. The blower 3 starts operating and supplies indoor air to the adsorbent 1 to adsorb moisture. Dry indoor air is exhausted from the outdoor exhaust port 6. When the adsorbent 1 reaches the breakthrough state,
The control unit 11 stops the operation of the blower 3, causes the air supply switching unit 9 to close the indoor side, and causes the exhaust switching unit 10 to close the indoor side. Thereafter, the control unit 11 energizes the heating source 2 to heat the adsorbent 1. After passing through the charged filter 4 from the outdoor air supply port 5, outdoor air passes through the adsorbent 1 which has reached the regeneration temperature due to heating and begins to desorb moisture, receives moisture and is supplied into the room from the indoor exhaust port 8. The above suction operation
By repeating the regeneration operation, humidified ventilation is achieved. During this operation, the heating source 2 directly heats the adsorbent 1, making it possible to perform energy-saving humidified ventilation with extremely little heat loss, as well as increasing the humidity in the indoor air without decreasing the oxygen concentration. , CO2, CO, and odor components can also be reduced. At this time, if both the air supply switching section 9 and the exhaust switching section 10 are closed on the indoor side only during the suction operation, the humidification effect will be further enhanced.

[0013] By selecting the dehumidifying ventilation/humidifying ventilation by detecting the indoor temperature/humidity and air component concentration, it is possible to maintain an optimal indoor environment at all times. In addition,
Needless to say, at the end of all operations, the control section 11 closes the outdoor side of the air supply switching section 9 and the exhaust switching section 10 to prevent outdoor air from flowing into the room when not in use. .

[0014]

[Effects of the Invention] As described above, according to the dry dehumidification/humidification device of the present invention, the following effects can be obtained.

(1) Since the regeneration operation directly heats the adsorbent, there is less heat loss and energy-saving operation can be achieved compared to the indirect heating method using hot air. Furthermore, since the response characteristics of the regeneration operation are improved, the dehumidification and humidification capabilities are also increased.

(2) When dehumidifying and humidifying, a ventilation function can be added in addition to simple dehumidification and humidification, and air components other than humidity can be controlled. In particular, during humidification, the oxygen concentration in the room conventionally decreases, but in the present invention, the oxygen concentration is hardly affected.

(3) By starting dehumidification and humidification from their respective optimal operations, dehumidification and humidification capabilities can be improved.

[Brief explanation of the drawing]

FIG. 1: Cross-sectional view of a dry addition device in one embodiment of the present invention.

[Fig. 2] Configuration diagram of a dehumidification/humidification device in a conventional example

[Explanation of symbols]

1A Adsorption part 1 Adsorbent 2 Heating source 3. Blower 5 Outdoor air supply port 6 Outdoor exhaust port 7 Indoor air supply vent 8 Indoor exhaust vent 9 Air supply switching section 10 Exhaust switching section 11 Control section

Claims (5)

[Claims] 1. An adsorption section comprising an adsorption material and a heating source incorporated in the adsorption material; a blower for supplying air to the adsorption section; a plurality of air supply ports provided upstream of the adsorption section; a plurality of exhaust ports provided on the downstream side of the suction section; a switching section provided at the plurality of air supply ports and the exhaust port for selecting an air path between the indoor side and the outdoor side; the suction section, the blower, and and a control section that controls the switching section, and the control section instructs the adsorption operation to cause air sucked from outside by a blower to pass through the adsorption section to adsorb moisture and supply air into the room, and to instruct the adsorption material to Blow air into the room, turn on the heating source,
a regeneration operation instruction for desorbing moisture adsorbed in the adsorbent and exhausting it outdoors; and an adsorption operation instruction for passing air sucked from indoors through the adsorption section to adsorb moisture and exhaust it outdoors. A dry dehumidification/humidification device configured to send outdoor air to the adsorption section, start a heating source, desorb moisture adsorbed by the adsorption material, and instruct a regeneration operation to supply air indoors. 2. The dry dehumidification/humidification device according to claim 1, wherein the adsorption section is integrated with a heating source that can be turned on and off, or the heating source is provided upstream of the adsorbent. 3. The dry dehumidification/humidification device according to claim 1, wherein the dehumidification/ventilation operation starts from a regeneration operation. 4. The dry dehumidifying and humidifying device according to claim 1, wherein the humidifying ventilation operation starts from an adsorption operation. 5. The dry dehumidification/humidification device according to claim 1, wherein an air path switching section provided in the air path is configured to prevent air from flowing in from outside the controlled space when all operations are completed.