JPH04281133A - Dry type humidifier-dehumidifier - Google Patents

Abstract

PURPOSE:To provide a device which can ventilate, humidify and dehumidify, and control other components than water with saved energy without the 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 a first and a second absorbent, a fan 4, an outdoor air feed port 6 and an indoor air feed port 8 both arranged in the upstream of the fan 4, in which air passage can be turned over selectively, an outdoor air exhaust port and an indoor air exhaust port 9 both arranged in the downstream of the fan 4, in which air passage can be turned over selectively, and a control part 12. By an operation of the fan 4, after air from the outer air feed port 6 is fed into a room after water and other components contained in the air are absorbed by the absorbing part 1A, water fed through the indoor air feed port 8 and absorbed by the absorbing part 1A is removed by heating and exhausted outdoors. Thus, room dehumidifying ventilation is carried out. On the other hand, after the water and other components from the indoor air feed port 8 are absorbed by the absorbing part 1A and exhausted outdoors, the water and the other components from the outdoor air feed port 6 are absorbed by the absorbing part 1A and exhausted indoors, whereby 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 capable of dry dehumidification and ventilation without the need for water supply or drain water treatment.

0002

2. Description of the Related Art A conventional dry dehumidification/humidification device is disclosed in, for example, Japanese Patent Laid-Open No. 63-286634. As shown in FIG. 2, this device is composed of an air path switching section 5, an adsorbent 1 and a heater 2, a blower 3, and an air path switching section 4 in order from the top. It is now possible to switch the air path.

[0003] When humidifying with the above configuration, the air path switching section 4 is set to open to the outside of the room and allow outdoor air to pass through the adsorbent material 1, and then return to the outside through the air path switching section 5. Moisture in the outdoor air is adsorbed by the adsorbent 1. Thereafter, the air path switching units 4 and 5 close the air path on the outdoor side, and after the indoor air passes through the adsorbent 1, it is set so that it returns to the indoor room again. At this time, the indoor air is heated by heater 2,
When passing through the adsorbent 1, the adsorbent 1 is heated to remove the adsorbed moisture, and this moisture is supplied into the room, thereby performing dry humidification.

0004

[Problems to be Solved by the Invention] In the configuration of such a conventional dry dehumidification/humidification device, (1) during regeneration, the air temperature supplied to the adsorbent material 1 is higher than the temperature during adsorption operation; Thermal swing absorption is a method of desorbing moisture adsorbed on the adsorbent 1.
l Swing Adsorption), but there are heat exchange losses when the temperature of the regeneration air is raised by the heater 2, heat radiation losses when the hot air passes through the air path, and heat loss when the hot air heats the adsorbent 1. There is heat loss, etc. As a result, it consumes a lot of energy and has a high running cost (nearly 10 times higher than the ultrasonic method) compared to other humidification methods, making it uncompetitive in price. Furthermore, since the adsorbent 1 is heated indirectly, the regeneration time becomes longer, and therefore the adsorption operation -
Since the regeneration operation is performed alternately, the humidification ability is affected by the regeneration time, and the humidification ability cannot be fully demonstrated. If you want to guarantee your ability,
It is necessary to increase the amount of adsorbent.

(2) Despite the provision of an air path that communicates the indoor and outdoor areas, it has been possible to only dehumidify or humidify the indoor air, and it has not been 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, which increases the indoor humidity, but has problems such as a decrease in oxygen concentration.

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.

[0008]

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a first adsorbent having a high affinity for moisture and a first adsorbent having a high affinity for moisture.
an adsorption unit comprising a second adsorbent that adsorbs an adsorbed material different from the adsorbent and a heating source incorporated in the plurality of adsorbents;
a blower that sends air to the suction section; a plurality of air supply ports provided on the upstream side of the suction section; a plurality of exhaust ports provided on the downstream side of the suction section; and the plurality of air supply ports and exhaust ports. established in
Each of them consists of a switching section that selects the air path between indoors and outdoors, and a control section that controls the adsorption section, the blower, and the switching section. an adsorption operation instruction for causing a first adsorbent to adsorb moisture in the air, a second adsorbent to adsorb substances other than moisture, and supplying air into the room; Indoor dehumidification and ventilation are performed at the same time by sending in air, activating a heating source, desorbing moisture and other adsorbed substances in the adsorbent, and instructing a regeneration operation to exhaust the air to the outside. During the dehumidification ventilation operation, air sucked from indoors is passed through the adsorbent, the first adsorbent adsorbs moisture in the air, and the second adsorbent adsorbs adsorbed substances other than moisture, and the air is removed from the room. Adsorption operation instructions to exhaust the air to the
Outdoor air is sent into the adsorbent, a heating source is activated, water and other adsorbed matter are desorbed by the adsorbent, and a regeneration operation instruction is given to supply air into the room.

[0009]

[Operation] According to the above-described structure, the air sucked from outside has moisture adsorbed by the first adsorbent and becomes dry air, and nitrogen, carbon dioxide, etc. are adsorbed by the second adsorbent, and air is supplied indoors. and dehumidifies the room. Then, by switching the air path and repeating the adsorption operation and the regeneration operation, the interior of the room is humidified, and the outdoor air is also used to ventilate the room, changing the concentration of air components.

0010

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

In FIG. 1, 1 is a first adsorbent made of 13X synthetic zeolite. This first adsorbent 1 is supported by a heating source 2 and is formed into a corrugated shape. 3 is a second adsorbent made of 5A-based synthetic zeolite, and is provided downstream of the adsorbent 1. 4 is a blower provided upstream of the first adsorbent 1. 5 is a charged filter, which is provided upstream of the blower 3. Upstream of the charged filter 5 is an outdoor air supply port 6 that takes in outdoor air.
There is an outdoor exhaust port 7 for exhausting air outdoors on the downstream side of the second adsorbent 3, and the outdoor air supply port 6 and the exhaust port 7 are double pipes. Furthermore, an indoor air supply port 8 is opened on the upstream side of the charged filter 5, and an indoor air exhaust port 9 is opened on the downstream side of the second adsorbent 3 toward the indoor side. Reference numeral 10 denotes an air supply switching unit for selecting whether air is supplied from the indoor side or the outdoor side. Reference numeral 11 denotes an exhaust switching unit, which selects whether the exhaust is to be directed to the indoor side or the outdoor side. 12
is a control unit that controls ON/OFF control of the heat source 2, operation of the blower 4, and each switching unit 10, 11.

Based on the above configuration, the dehumidification and ventilation function will be explained. The control unit 12 firstly desorbs the moisture adsorbed on the adsorbents 1 and 3 (even if the blower 3 is not operated, the moisture in the air is always adsorbed on the adsorbents 1 and 3 by diffusion). The air supply switching unit 10 closes the outdoor side, and the exhaust switching unit 11 closes the indoor side, and operates the blower 4 and heating source 2. let Indoor air is discharged from the heated first adsorbent 1 and second adsorbent 3 by the heating source 2, and releases moisture and other adsorbed materials from the adsorbents 1 and 3, and is exhausted from the outdoor exhaust port 7. be done. At this time, the first adsorbent 1 is contained in the exhaust air.
Contains moisture received from the air and indoor air components. When time passes and the moisture in the first adsorbent 1 and the adsorbed material in the second adsorbent 3 disappear, the control unit 12 turns off the power to the heat source 2 and operates only the blower 4, thereby causing the first adsorbent to dry. The temperature of the adsorbent 1 is lowered to a level at which moisture can be adsorbed. continue,
In order to shift to the suction operation, the control unit 12 stops the operation of the blower 4, causes the air supply switching unit 10 to close the indoor side, and causes the exhaust switching unit 11 to close the outdoor side. After that, the blower 4 is operated. As a result, the outdoor air from the outdoor air supply port 6 is adsorbed with dust and suspended particles by the charged filter 5, moisture is adsorbed by the first adsorbent 1, and CO2 and N2 are absorbed by the second adsorbent 3. The air is adsorbed and supplied into the room from the indoor exhaust port 9 as clean, dry air with a high oxygen concentration. By repeating the above regeneration operation and adsorption operation, dehumidifying ventilation is achieved. During this operation, the heating source 2 directly heats the first adsorbent 1, which enables energy-saving dehumidifying ventilation with extremely low heat loss, reduces indoor NOX, CO2, CO, odor components, etc., and reduces oxygen concentration. It has the effect of increasing At this time, the air supply switching section 9 and the exhaust switching section 10 may be configured to block the outdoor air only during the suction operation, thereby increasing the dehumidification effect.

Next, humidification ventilation will be explained. During humidified ventilation, the control unit 12 starts with a suction operation. (The first 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 the subsequent adsorption operation time. (It may be made shorter.) The air supply port switching section 10 closes the outdoor side, and the exhaust port switching section 11 closes the indoor side. The blower 4 starts operating and supplies indoor air to the adsorbent 1 from the indoor air supply port 8 to adsorb moisture. Dry indoor air is exhausted from the outdoor exhaust port 7. When the adsorbents 1 and 3 reach a breakthrough state, the control section 12 stops the operation of the blower 4, causes the air supply switching section 10 to close the indoor side, and causes the exhaust switching section 11 to close the outdoor side. After that, the control unit 12 energizes the heating source 2, and the adsorbent 1,
Heat 3. After passing through the charged filter 5, the outdoor air is heated to the regeneration temperature through the outdoor air supply port 6, receives the desorbed moisture, and is supplied into the room. By repeating the above adsorption operation and regeneration operation, humidification and ventilation are achieved. During this operation, the heating source 2 directly heats the adsorbent 1, so that energy-saving humidification and ventilation with extremely little heat loss can be achieved. On this occasion,
If the air supply switching section 10 and the exhaust switching section 11 are closed on the indoor side only during the suction operation, the humidification effect will be further enhanced. By selecting the dehumidifying ventilation/humidifying ventilation by detecting the indoor temperature/humidity and air component concentration, an optimal indoor environment can be maintained at all times.

[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, by adsorbing CO2, N2, etc. with the second adsorbent and by ventilation, it is possible not only to perform simple dehumidification and humidification, but also to add a ventilation function, which removes air other than humidity. Ingredients can also be controlled. In particular, during humidification, the oxygen concentration in the room conventionally decreases, but the present invention can also increase the oxygen concentration.

(3) By starting from the optimal operation for dehumidification and humidification, the dehumidification and humidification capabilities can be further enhanced.

[Brief explanation of the drawing]

[Fig. 1] A cross-sectional view of a dry dehumidification/humidification device according to an embodiment of the present invention.

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

[Explanation of symbols]

1 First adsorbent 2 Heating source 3 Second adsorbent 4　Blower 6 Outdoor air supply vent 7 Outdoor exhaust port 8 Indoor air supply vent 9 Indoor exhaust vent 10 Air supply switching section 11 Exhaust switching section 12 Control section

Claims (3)

[Claims] 1. Adsorption comprising a first adsorbent having a high affinity for moisture, a second adsorbent adsorbing a different adsorbent from the first adsorbent, and a heating source incorporated in the plurality of adsorbents. a blower that sends air to the suction section; a plurality of air supply ports provided on the upstream side of the suction section; a plurality of exhaust ports provided on the downstream side of the suction section; and the plurality of air supply ports. and a switching section that is provided at the exhaust port and selects the air path between indoor and outdoor sides, and a control section that controls the adsorption section, the blower, and the switching section, and the control section is configured to control the adsorption material consisting of a plurality of parts. an adsorption operation instruction for causing air sucked from outside to pass through, causing the first adsorbent to adsorb moisture in the air, causing the second adsorbent to adsorb substances to be adsorbed other than moisture, and supplying air into the room; The indoor air is sent to the adsorbent, the heating source is activated, the water and other adsorbed substances are desorbed in the adsorbent, and the air is exhausted to the outside. an adsorption operation instruction for passing air sucked from the air, causing the first adsorbent to adsorb moisture in the air, causing the second adsorbent to adsorb substances to be adsorbed other than moisture, and exhausting the adsorbed material to the outside; A dry dehumidification/humidification device configured to send outdoor air into the room, activate a heating source, desorb moisture and other adsorbed matter adsorbed by the adsorbent, and instruct a regeneration operation to supply air indoors. . 2. The dry dehumidification method according to claim 1, wherein the adsorption section integrates an ON-OFF controllable heat source and the adsorption material, or the heat source is provided upstream of the adsorption section. Device. 3. The dry dehumidifying and humidifying device according to claim 1, wherein an air path switching section provided in the air path prevents air from flowing in from outside when all operations are completed.