JPH05200238A - Dehumidifier-humidifier - Google Patents

Abstract

PURPOSE:To prevent the dew condensation on the wall of an emitting air passage by operating a blower and a heat source device at the time of the completion of operation to send hot air into the emitting air passage. CONSTITUTION:An adsorbing material 11a having air passages, the heat source device 2 incorporated in the adsorbing material 1a, a blower 3 for sending air and a control part 4 controlling them are provided. The control part 4 changes over a suction air passage changeover part and an emitting air passage changeover part so as to form the same passage constitution as a separation process in a dehumidifying or humidifying mode at the time of the stop of operation and can operate the blower 3 and the heat source device 2 for a definite time.

Description

Detailed Description of the Invention

[0001]

The present invention relates to dehumidification using an adsorbent,
The present invention relates to a dehumidifying / humidifying device that adjusts air quality components such as humidification to prevent dew condensation in a discharge air passage.

[0002]

2. Description of the Related Art A conventional dehumidifying / humidifying device using an adsorbent is disclosed, for example, in JP-A-63-286634 and 1-1.
The one disclosed in Japanese Patent No. 67319 is cited. Each of these devices has a blower 21, an adsorbent 22 and a heat source device 23.
Etc., which are connected in series by the ventilation passage, and the air passage switching portions 24a, 24 are provided on the inlet side and the outlet side of the ventilation passage.
b is provided. In this configuration, when dehumidifying the room air, the room air is supplied to the adsorbent 22 to adsorb moisture in the air, and the room air is supplied as dry air to the room for dehumidification. The adsorbent 22 that has reached the breakthrough state is heated by the outdoor air heated by the heat source device 23 and desorbs adsorbed water. The dehumidification operation can be performed by alternately repeating the adsorption step and the desorption step.

[0003]

However, in such a conventional dehumidifying / humidifying device, hot and humid air is discharged from the outdoor discharge port to the outside of the room through the discharge air passage during the desorption process in the dehumidifying mode. At this time, part of the hot and humid air
Condensation occurs when cooled on the air passage wall surface. If the operation is stopped in this state, the following problems will occur.

Molds and the like are generated through the condensed water. Dust adheres to the dew condensation water and becomes unsanitary.

[0005]

In order to solve the above problems, an adsorbent having a ventilation path, a blower for sending air to the adsorbent, and a room provided upstream of the adsorbent and facing the room An outdoor air intake port facing the air intake port and the outdoor space, an intake air flow path switching unit provided in the air intake air flow passage communicating between the indoor air intake port and the outdoor air intake port, and provided in the room on the downstream side of the adsorbent. Thermal energy to the adsorbent, and the indoor discharge port facing and the outdoor discharge port exposed to the outside, the discharge air passage switching unit provided in the discharge air passage communicating the indoor discharge port and the outdoor discharge port, It comprises a heat source device to supply, a blower, each air passage switching unit, and a control unit for controlling the operation of the heat source device, and the control unit has the same air passage configuration as the desorption step in the dehumidifying or humidifying mode at the end of operation. So that the intake air passage switching unit and the discharge air passage switching Switch the part is obtained by the arrangement for operating a predetermined time the blower and the heat source unit combined.

[0006]

According to the present invention, with the above configuration, the control unit
At the end of the operation, the intake air passage switching unit and the discharge air passage switching unit are switched so that the air passage structure is the same as the desorption process in the dehumidifying or humidifying mode. At this time, the dew condensation water generated during the desorption process adheres to the air passage. With this air passage switching configuration, the blower and the heat source device are operated for a certain period of time to supply warm air to the air passage. As a result, the air passage wall is heated by warm air, and the condensed water adhering to the wall surface evaporates,
It will be dried.

[0007]

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

FIG. 1 shows the state of the desorption process in the humidifying mode. In the figure, 1a and 1b are adsorbents formed in a honeycomb shape or a corrugated shape. 2 is the adsorbent 1
It is a heat source device incorporated between a and 1b. A blower 3 is provided upstream of the adsorbent 1. Reference numeral 4 denotes an outdoor intake port that is exposed to the outside of the room, and 5 is an outdoor discharge port that is provided coaxially with the outdoor intake port. Reference numerals 6 and 7 denote an indoor intake port and an indoor discharge port which face the room. 8 is an outdoor intake port 4
And an intake air switching portion provided in the air passage that communicates the indoor intake port 6 with the indoor intake port 6. Reference numeral 9 is an outlet switching unit provided in the air passage that connects the outdoor outlet 5 and the indoor outlet 7. Reference numerals 10 and 11 are temperature and humidity detecting elements provided in the intake air passage. 12 is a discharge line for the filter, 13
Is a filter portion that is negatively charged. Reference numeral 14 is a control unit that controls the operations of the heat source device 2, the air passage switching units 8 and 9, and the blower 3. Reference numeral 101 denotes a wall on which the device of the present application is attached, 102 denotes an indoor side, and 103 denotes an outdoor side.

Based on the above configuration, the behavior of dew condensation in the air passage in the humidification mode is shown. Temperature and humidity sensor 10,
Reference numeral 11 selects an operation mode that optimizes the indoor 102 thermal environment from the temperature and humidity values. Discharge line 11 and charging filter 12
Absorbs the dust in the intake air and sends it to the adsorbers 1a and 1b as clean air containing only water. When the control unit 14 is notified of the operation stop, the control unit 14 switches the intake switching unit 8 and the discharge switching unit 9 to the illustrated states. After that, the blower 3 and the heat source device 2 are operated, and the hot air generated as a result desorbs the moisture adsorbed on the adsorbents 1a and 1b to become hot and humid air, which is supplied to the room through the discharge air passage. To be done. After that, when the operation of the blower 3 and the heat source device 2 is further continued,
The hot air becomes high-temperature dry air and is supplied into the air passage. This high temperature dry air evaporates the condensed water adhering to the air passage wall,
The airway wall can be dried. In this way, after the blower 3 and the heat source device 2 are operated for the time required for the wall surface to dry, all the operations are stopped.

[0010]

As described above, according to the dehumidifying / humidifying device of the present invention, the following effects can be obtained. That is, by providing a mode for drying the inside of the air passage at the end of the operation, it is possible to prevent dew condensation on the air passage wall, and to suppress the growth of mold, bacteria and the like.

[Brief description of drawings]

FIG. 1 is a sectional view of a dehumidifying / humidifying device according to an embodiment of the present invention.

FIG. 2 is a sectional view of a conventional dehumidifying / humidifying device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adsorbent 2 Heat source device 3 Blower 4 Outdoor intake port 5 Outdoor discharge port 6 Indoor intake port 7 Indoor discharge port 8 Intake switching unit 9 Discharge switching unit 14 Control unit

Claims (1)

[Claims] 1. An adsorbent having a ventilation path, a blower for sending air to the adsorbent, an indoor air intake port provided on the upstream side of the adsorbent and exposed to the room, and an outdoor air intake port exposed to the outside. An intake air passage switching unit provided in an intake air passage that connects the indoor intake port and the outdoor intake port, an indoor discharge port provided downstream of the adsorbent, and an outdoor space exposed to the outside. A discharge outlet, a discharge air passage switching unit provided in a discharge air passage that communicates the indoor discharge outlet and the outdoor discharge outlet, a heat source device that supplies heat energy to the adsorbent, the blower, and each wind. And a control unit that controls the operation of the heat source unit, the control unit having the intake air passage switching unit and the air passage switching unit so that the air passage configuration is the same as the desorption process in the dehumidifying or humidifying mode at the end of operation. The discharge air passage switching unit is switched, and the blower and Comprising a serial heat source unit is operated a predetermined time dehumidification device.