JPH09280623A - Ventilation dehumidifier - Google Patents

Abstract

(57) [Abstract] [Problem] A conventional underfloor dryer remains in operation while a high-humidity state continues for a long period of time, and water splashes due to rain,
The blower may be locked and the operation may stop due to dust scattering in a strong wind. SOLUTION: A collision plate 26 forming an air passage separates dust in the outdoor air sucked and blown by an air blower 15 from an intake port 16 by rapidly changing the direction of the air flow. The ventilation / dehumidifying device is removed by a filter 28 provided on the downstream side of 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating and dehumidifying device for ventilating and dehumidifying a space such as under a floor of a building.

[0002]

2. Description of the Related Art When a house is built in a bundle as seen in an ancient Japanese house, a wooden house having a high air permeability under the floor of the house and having high durability even under high temperature and high humidity weather conditions. Is what you can do. In recent years, since the underfloor is surrounded by a cloth foundation, the ventilation under the floor is poor even though there is a slight ventilation port. For this reason, the humidity under the floor is high, and mold and rot fungi easily propagate, and the wood constituting the floor is easily corroded.

For these reasons, the use of underfloor ventilation fans having the structure shown in FIG. 4 has been increasing in recent years in order to improve ventilation under the floor. Reference numeral 1 denotes a blower provided inside the ventilation fan main body 2, which sucks stagnant air under the floor 9 from an intake port 3 and exhausts the air from an exhaust port 4. This ventilation fan body 2 is a part of a ventilation opening 10 provided at several places between the foundation 6 of the building and the base 7 of the building on the north side of the building or in the vicinity of the floor around the water such as a washroom, a bathroom, a kitchen, etc. It is provided using. FIG. 5 shows the electrical connection of this underfloor ventilation fan. The controller 11 includes a plurality of ventilation fan bodies 2a, 2b,
2c is controlled.

With the above configuration, the controller 11 operates the ventilation fan main body 2 for a predetermined time, generally from about 10:00 am to about 4:00 pm when the humidity of the outside air decreases.
When the ventilator body 2 operates, the air outside on the south side flows in from the ventilation port 10 as shown by the arrow a, and the stagnant and humid air below the floor 9 is exhausted from the exhaust port 4 to the outside. By repeating this operation, the humidity of the underfloor 9 is reduced, the moisture content of the wood constituting the underfloor 9 is reduced, and the activity of wood rot fungi or the activity of mold is suppressed.

[0005]

The underfloor ventilation fan having the above-mentioned structure has a problem that the ventilation function is not sufficient. That is, in the configuration in which the ventilation fan main body 2 is simply operated every day for a predetermined time, when the outside air has a high humidity, the outside air of high humidity is taken into the underfloor, which conversely increases the humidity under the floor. When the controller 11 has a built-in humidity sensor, the operation is stopped while a long-term high humidity state such as the rainy season continues. That is, the operation is kept stopped when drying by ventilation is originally required.

Also, water splashes due to rain, and dust and dirt intrude into the ventilation fan main body 2 due to scattering of dust in a strong wind. In such a situation, the blower 1 is locked and the operation is stopped.

[0007]

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional structure as described above, and it is particularly liable to become humid regardless of the humidity condition of the outside air. The ventilation dehumidifier that can be stably dried for a long period of time without being affected by dust, water, oil smoke, etc. under the floor.

[0008]

The invention described in claim 1 is such that the collision plate forming the air passage drastically changes the direction of the air flow of dust in the outdoor air that is blown by the blower means from the intake port. The ventilation and dehumidifying device is separated by doing so and further removed by a filter provided on the downstream side of the collision plate.

According to the second aspect of the present invention, the intake port and the third exhaust pipe are arranged on the side of the building, and the second exhaust pipe is arranged on the opposite side of the building so that they are affected by rain and wind. The ventilation and dehumidifying device has a simple structure that prevents dust and water from entering the main body.

According to the third aspect of the present invention, a dust collection box including a collision plate is detachably provided to the main body, and the ventilation and dehumidification device is very easy for maintenance such as dust cleaning.

According to the invention described in claim 4, the dust sucked from the suction port is separated in advance by the collision plate, and the dust provided by the filter provided on the upstream side of the adsorbent and on the downstream side of the second switching valve is reliably It is a ventilation and dehumidifying device that can remove water and oil smoke.

[0012]

Embodiments of the present invention will be described below. FIG.
Shows the configuration of the ventilation / dehumidifying device of the present embodiment. FIG. 2 shows a state in which the ventilation / dehumidifying device is attached to the underfloor 9 or a state in which the dust collection box 25 is removed.
Inside the main body 32, a blower unit 15, an adsorbent 18 provided in a blower path 17 blown by the blower unit 15, a regeneration heating unit 19 for activating the adsorbent 18, and a dry air blown under the floor 9. A first exhaust pipe 20, a second exhaust pipe 21 that discharges the air flow blown by the blower unit 15 to the outside of the machine, and a first exhaust pipe 20 that communicates with the first exhaust pipe 20 and blows dry air to the underfloor 9. The third exhaust pipe 23, the first switching valve 22 that selectively opens and closes the first exhaust pipe 20 and the second exhaust pipe 21, and the air flow blown by the blower unit 15 to the third exhaust pipe 23 side. And a second switching valve 24 for selectively switching to the adsorbent 18 side,
A wind tunnel 29 through which the air flow blown by the blowing unit 15 flows is provided. The blower unit 15 sucks the outdoor air from the intake port 16 provided on the upper surface of the main body 32 and blows it to the blower path 17, and is constituted by a fan motor casing. In this embodiment, as the adsorbent 18, a granular silica gel, zeolite, or the like packed in a breathable bag or box, or a honeycomb body having passage-shaped cross sections of a lattice or hexagon is used. There is. The first switching valve 22 and the second switching valve 24 are motors (not shown).
It is composed of a drive source such as an electromagnet and a partition plate.

Behind the main body 32, that is, on the building side,
A dust collection box 25 having the intake port 16 on the top is detachably provided to the main body 32. Dust collection box 25
Includes a collision plate 26 that suddenly changes the direction of the air flow sucked from the intake port 16. That is, the collision plate 26 is
When the airflows flowing in from 6 collide with each other, the direction of the airflows is once directed downward and then upward. The lower part of the collision plate 26 has an opening 27. The inlet of the wind tunnel 29 is located above the opening 27 and is provided with a filter 28.

As shown in FIG. 2, the third exhaust pipe 23 is connected to the ventilation port panel 30 by a connecting hose 31. The third exhaust pipe 23 projects rearward of the main body 32, and the intake port 16 is also formed on the rear surface of the main body 32.

Further, in the main body 32, a detecting means 33 for detecting the humidity of the outside air, and a blowing means 15, a regenerative heating means 19, a first switching valve 22 and a second switching according to the detected humidity of the detecting means 33. A control means 34 for controlling the energization of the valve 24 is provided.

The operation of this embodiment will be described below. When the humidity detected by the detection unit 33 is low, the control unit 34 executes the ventilation operation. That is, the second switching valve 24 is shown in FIG.
The third exhaust port 23 is opened as the side a shown in FIG.
The 7 side is closed. In this way, the air blower means 15 becomes the intake port 1
The low-humidity outdoor air that is inhaled and blown from 6 is blown from the third exhaust pipe 23 to the underfloor 9 as shown by an arrow a in FIG. Therefore, the humid, stagnant air that has accumulated in the underfloor 9 is exhausted from the ventilation ports other than the ventilation port in which this ventilation / dehumidifying device is installed, and is replaced with low-humidity outdoor air.

When the humidity detected by the detecting means 33 is high, that is, when it is raining, the controlling means 34 executes the dehumidifying operation.
That is, the second switching valve 24 is opened on the side of the adsorbent 18 disposed in the air passage 17 as shown by b in FIG. 2, and the third exhaust pipe 23 is closed to operate the air blowing means 15. To do. Therefore, the humid air that has flowed in through the intake port 16 flows through the air passage 17 and comes into contact with the adsorbent 18. By contact with the adsorbent 18, moisture in the air is adsorbed by the adsorbent 18, and the air becomes low in humidity. At the same time, the heat of adsorption of the adsorbent 27 is given to the air, and the temperature becomes high. At this time, the first switching valve 22 is on the side a, and this low-humidity, high-temperature air flow passes from the first exhaust pipe 20 to the third exhaust pipe 23, as shown by arrow b in FIG. Is blown into the underfloor 9. Therefore, the stagnant humid air in the underfloor 9
The air is exhausted through ventilation openings other than the ventilation opening where this ventilation / dehumidifying device is installed, and is replaced with low-humidity warm air.

By the dehumidifying operation, the adsorbent 18 adsorbs moisture in the air and its activity decreases. Control means 34
In order to restore the activity of the adsorbent 18, the regenerative mode for heating the adsorbent 18 at an appropriate timing is executed. That is, the regenerative heating means 19 provided on the upstream side of the adsorbent 18 is energized with the switching valve 22 on the low side. In this way, the air blown by the blower unit 15 is heated by the regeneration heating unit 19 to a high temperature and comes into contact with the adsorbent 18. Therefore, the adsorbent 18 is heated to release the adsorbed water and recover the activity. The airflow thus humidified is exhausted from the second exhaust pipe 21 to the outside of the machine, as shown by an arrow c in FIG. By repeating this adsorption / regeneration mode, dehumidification of the underfloor 9 proceeds. At this time, the second exhaust pipe 21
Is provided on the surface opposite to the surface on which the intake port 16 is arranged, and in the regeneration mode operation, the humid air discharged from the second exhaust pipe 21 is short-circuited and is again sucked from the intake port 16. There is no such thing. Therefore, according to the configuration of this embodiment, the regeneration efficiency of the adsorbent 18 does not decrease.

As described above, according to this embodiment, it is possible to realize a ventilation / dehumidifying device capable of drying the underfloor regardless of the humidity of the outside air.

The adsorbent 18 used in this embodiment
Is a granular shape or a honeycomb shape having a small passage cross section. Therefore, when dust, water, oil, etc. are contained in the air, they are likely to adhere to the adsorbent 18. The attached dust is difficult to remove and requires a considerable amount of time to remove. Further, when water, oily smoke or the like adheres to the adsorbent 18, an oil film is formed on the surface, the speed at which water is adsorbed decreases, and the adsorbing ability of the adsorbent 18 decreases.

Therefore, in the present embodiment, the dust, water, oily smoke, etc. in the air sucked in through the intake port 16 are made difficult to enter the main body 32. In other words, the air flow sucked from the intake port 16 collides with the collision plate 26 provided in the dust collection box 25, whereby the flow direction is rapidly changed. That is, the airflow that collides with the collision plate 26 once flows downward, and then flows upward. Therefore, dust, water, oily smoke, etc. having a different mass from air are separated by the direction change of this air flow. In particular, separated water and oil smoke will collide with the collision plate 26.
It adheres to the surface of and can be easily processed later. The airflow from which dust, water, oily smoke, etc. have been separated in this way is opened 27
Through the filter 28 provided on the surface of the wind tunnel 29 into the main body 32. At this time, the filter 28 also becomes dusty.
Since it has a function of removing water and oil smoke, the airflow entering the main body 32 is surely clean.

Although the position of the opening 27 is provided in the lower part in the present embodiment, it is constructed in the horizontal direction so that the intake port 16 is provided.
There is no problem even if the air from is turned horizontally.

Further, in this embodiment, since the intake port 16 for taking in the outdoor air is formed on the building side, it is not easily affected by rain and wind, and dust and water are less likely to enter the main body 32. . Since the dust collecting box 25 and the filter 28 are detachable from the main body 32, when maintenance such as cleaning the inside of the main body 33 is required, this maintenance can be easily performed. That is, when the dust collection box 25 is disassembled from the main body 32, the place where dust is accumulated is exposed.

At this time, as shown in FIG. 3, the filter 35 may be detachably provided in the air passage 17 upstream of the adsorbent 18 and downstream of the second switching valve 24. . In this case, the airflow taken in by the air blowing means 19 from the intake port 16 passes through the filter 35, so that dust and the like in the airflow can be removed more reliably. Further, since the filter 35 is detachably provided, it can be easily removed and cleaned when maintenance becomes necessary.

[0025]

According to the invention described in claim 1, the blower means for sucking and blowing the outdoor air from the intake port, the adsorbent provided in the blower route for blowing the blower means, and the dry air blown under the floor. A first exhaust pipe, a collision plate that forms an air passage that causes the air flowing from the intake port to collide to temporarily direct the airflow direction downward and then upward, and a filter provided on the downstream side of the collision plate. As a configuration provided, it is possible to realize a ventilation / dehumidifying device that can dry the underfloor regardless of the humidity condition of the outside air, and can effectively remove dust, water, oily smoke, etc. to stably dry for a long time.

According to the second aspect of the present invention, an air blower for sucking and blowing the outdoor air from the air inlet, an adsorbent provided in the air blow path for blowing the air by the blower, and an air flow blown by the blower are used. A second exhaust pipe that discharges to the outside and a third exhaust pipe that blows dry air under the floor are provided, the intake port and the third exhaust pipe are arranged on the building side, and the second exhaust pipe is As a configuration arranged on the opposite side of the building, a ventilation / dehumidifying device that is less susceptible to the effects of rain and wind and that prevents dust, water, etc. from entering the main body is realized.

According to a third aspect of the present invention, an air blower for sucking and blowing the outdoor air from the intake port, an adsorbent provided in the air blow path for blowing the air by the blower, and an air flow blown by the blower are used. A second exhaust pipe that discharges to the outside, a third exhaust pipe that blows dry air under the floor, a dust collection box that collects dust in the air that has flowed in through the intake port, and a detachable body The present invention realizes a ventilation / dehumidifying device that is equipped with a filter and is very easy to perform maintenance such as dust cleaning.

According to a fourth aspect of the present invention, there is provided an air blower for sucking and blowing the outdoor air from the air inlet, an adsorbent provided in the air blow path blown by the blower, and a dry air blown under the floor. Three exhaust pipes, a second exhaust pipe that discharges the air flow blown by the blowing means to the outside of the machine, a first switching valve that selectively opens and closes the first exhaust pipe and the second exhaust pipe, A path for blowing the airflow blown by the blowing means from the third exhaust pipe to the underfloor,
A second switching valve that selectively switches to a path for blowing air to the adsorbent; and a collision plate that forms an air passage that causes the air flowing from the intake port to collide to temporarily direct the airflow downward and then upward. By providing a filter on the upstream side of the adsorbent and on the downstream side of the second switching valve, it is possible to realize a ventilation / dehumidifying device that can more reliably remove dust, water, oil smoke, and the like.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration of a ventilation dehumidifier according to an embodiment of the present invention.

FIG. 2 is a side sectional view showing a state in which the ventilation / dehumidifying device is attached under the floor.

FIG. 3 is a side sectional view showing a structure in which a filter is provided on the upstream side of the adsorbent.

FIG. 4 is a cross-sectional view showing the configuration of a conventional underfloor ventilation device.

FIG. 5 is a wiring diagram showing electric wiring of the same.

[Explanation of symbols]

 15 blower means 16 intake port 17 blower path 18 adsorbent 19 regeneration heating means 20 first exhaust pipe 21 second exhaust pipe 22 first switching valve 23 third exhaust pipe 24 second switching valve 25 dust box 26 Collision Plate 27 Opening 28 Filter 32 Main Body 35 Filter

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kunio Ogita 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. A blower means for sucking and blowing outdoor air from an intake port, an adsorbent provided in a blower path blown by the blower means, a first exhaust pipe for blowing dry air under the floor, and an intake air A ventilating / dehumidifying device comprising: a collision plate that collides air flowing in from a mouth to form an air passage in which the direction of the air flow is directed downward and then upward, and a filter provided on the downstream side of the collision plate. 2. An air blower for sucking and blowing outdoor air from an intake port, an adsorbent provided in a blower path for blowing air by the blower, and a second air blower for discharging the air flow blown by the blower to the outside of the machine. An exhaust pipe and a third exhaust pipe that blows dry air under the floor are provided, the intake port and the third exhaust pipe are arranged on the building side, and the second exhaust pipe is arranged on the opposite side of the building. Ventilation dehumidifier. 3. An air blower for sucking and blowing outdoor air from an air inlet, an adsorbent provided in a blower path blown by the blower, and a second air blower for discharging the air flow blown by the blower to the outside of the machine. An exhaust pipe, a third exhaust pipe that blows dry air under the floor, a dust collection box that collects dust in the air that has flowed in from the intake port, and a filter that is detachably provided on the main body,
The dust collecting box is a ventilation / dehumidifying device which is detachable from the main body and includes a collision plate which forms an air passage for colliding air flowing in from an intake port to temporarily direct the airflow downward and then upward. 4. An air blower for sucking and blowing outdoor air from an air inlet, an adsorbent provided in an air blow path blown by the blower, a third exhaust pipe for blowing dry air under the floor, and a blower. The second exhaust pipe for discharging the air flow blown by the means to the outside of the machine, the first switching valve for selectively opening and closing the first exhaust pipe and the second exhaust pipe, and the air flow blown by the air blow means. A second switching valve that selectively switches between a path that blows air from the third exhaust pipe to the underfloor and a path that blows air to the adsorbent, and the air that flows in from the intake port collides with the air flow direction once downward. A ventilating / dehumidifying device comprising a collision plate that forms an air passage that faces upward and then a filter, and a filter on the upstream side of the adsorbent and on the downstream side of the second switching valve.