JPH11179126A - Air cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaning apparatus easy to be miniaturized, capable of solving the clogging of a cleaning part with oils and powder dust, and scarcely requiring maintenance of the purifying part at every prescribed time. SOLUTION: This apparatus comprises a cleaning part constituted by sprightly installing a filter 2 in a ventilation route A of a hood main body 5 and installing a water supply nozzle 3 in the front side of the ventilation route A in the upper part of the filter 2 and a water-proof pan 4 for receiving water in the lower part and carries out air purification by sucking and ventilating object air subjected to cleaning by a suction fan 6 through the ventilation route A. Water is supplied during the cleaning or after cleaning operation. In this case, the filter 2 is slantingly installed as to set the face facing the front side of the ventilation route A downward and the water supplying means is so arranged as to supply and spray water in the direction parallel to the face of the filter in the front side of the ventilation route A or in the direction at an acute angle to the face of the filter in the front side of the ventilation route A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying apparatus which is installed mainly on cooking equipment in a kitchen and which purifies and exhausts air to be purified such as oily smoke generated during cooking.

[0002]

2. Description of the Related Art In recent years, even at home, a ventilator for sucking, purifying and exhausting air to be purified such as oil smoke generated during cooking in a kitchen or the like has become widespread. This type of ventilation system
An air purifier that purifies and exhausts indoor air from a kitchen or the like, and is generally called a range hood, and is installed above a range table, which is cooking equipment provided in the kitchen.

In the above-mentioned air purifying apparatus, for example,
Short slit-shaped long holes 21a, 22a made of a metal plate material such as stainless steel as shown in FIG.
The two perforated plates 21 and 22 formed by arranging a large number of (not shown) in the horizontal direction are relatively opposed to the long holes 21a and 22a and the non-hole portions 21b and 22b (not shown) other than the long holes. Filters are formed side by side. Then, air to be purified such as oil smoke generated during cooking is suctioned through the ventilation path by an intake fan provided in the hood main body, and is ventilated through the perforated plates 21 and 22 to purify the air and pass through the air duct. Exhaust to the outside.

That is, in the perforated plates 21 and 22, an oil component having a large mass in the air to be purified is accelerated by the long holes 21a of the first perforated plate and collides with the second non-porous portion 22b. The air is captured and purified. The oil component adhering to the surfaces of the perforated plates 21 and 22 needs to be washed off at regular intervals using a detergent or the like. Many filters such as the perforated plates 21 and 22 are shown in FIG. As described above, the oil purifier 1 is inclined and installed in the air purification device 1, and the lower edge thereof is provided with an oil receiver C for collecting and collecting the captured oil component. Can be easily and collectively discarded.

[0005]

However, in the above-mentioned conventional technique, the perforated plates 21 and 22 are provided at regular intervals.
It is necessary to perform a care operation for the filter, such as cleaning the surface or cleaning the oil receiver C by discarding the oil collected in the oil receiver C. Accordingly, there has been an increasing demand for an air purification device that does not require this maintenance work, and the present applicant has also stipulated that two perforated plates be provided with a ventilation path such that the long holes and the non-holes face each other. A purification section is formed substantially horizontally side by side in the inside, and the cleaning water is supplied from the water supply means to the surface of the perforated plate, and the air to be purified is passed through a ventilation path from the bottom to the top of the perforated plate. Has proposed an air purifying apparatus for purifying air and exhausting air by sucking and aeration and bubbling cleaning water.

[0006] This air purification device purifies air by capturing dust, oil components and the like from the air to be purified with high efficiency by bubbling of the cleaning water, and discharges the air together with the cleaning water.
Therefore, the above-mentioned maintenance work at regular intervals is not required, and domestic labor can be reduced. However, this air purification device has a problem that oil containing dust and the like accumulates between the perforated plates of the purification unit for a long period of time, and the long holes are clogged. Therefore, there is a problem in that the pressure loss of the intake air is large, and the intake fan and the like become large.

The present invention has been made in view of the above circumstances, and an object thereof is to eliminate clogging of a purification unit due to oil, dust, or the like, and to make maintenance of the purification unit at regular intervals almost unnecessary. Another object of the present invention is to provide an air purifying apparatus which can be easily miniaturized.

[0008]

In order to achieve the above object, an air purifying apparatus according to the present invention is characterized in that a filter is provided upright in a ventilation path in a hood body and water supply means is provided in front of the ventilation path above the filter. A waterproof pan for receiving water is provided below to form a purifying section, and the air to be purified is suction-ventilated by an intake fan through a ventilation path to purify the air. Water is supplied to the filter during or after the purifying operation. In the air purifying device, the filter is disposed so as to be inclined so that the front side of the ventilation path faces downward, and the water supply means is substantially parallel to the front side of the ventilation path of the filter or at an acute angle to the front side of the ventilation path. It is like spraying water in the direction of.

[0009] Therefore, in this case, it is possible to wash oil, dust and the like adhering to the filter of the purifying section with the water supply, and at this time, it is possible to direct the scattering of water droplets due to the reflection from the filter of the water supply downward.

According to a second aspect of the present invention, there is provided an air purifying apparatus, wherein the filter according to the first aspect comprises a plurality of perforated plates formed by arranging a number of long holes in a vertical direction in a horizontal direction, substantially in parallel to the front and rear of the ventilation path. One of the long holes of the adjacent perforated plates and the other non-hole portion are arranged side by side so as to face each other.

Therefore, in this case, oil, dust and the like adhering to a plurality of perforated plates formed by arranging a number of long holes in the vertical direction in the horizontal direction, which are filters of the purifying section when water is supplied, are collected together with water droplets into the upper portion of the perforated plate. Can flow over the non-hole portion along the long hole communicating from the bottom to the lower portion, and the spray water supply hits the non-hole portion.

[0012]

1 to 5 show an embodiment corresponding to claims 1 and 2 of the present invention, and FIG. 1 schematically shows an air purifying apparatus according to an embodiment of the present invention. It is a block diagram. FIG. 2 is an exploded perspective view of a filter which is a main part of the air purification device. FIG. 3 is an explanatory diagram of a filter that is a main part of the air purification device. FIG. 4 is a partial configuration diagram illustrating a purification unit of the air purification device. FIG. 5 is an explanatory diagram of a water supply nozzle of the air purification device.

In the air purifying apparatus 1 of this embodiment, a filter 2 is erected on a ventilation path A in a hood main body 5, a water supply means is provided in front of a ventilation path A above the filter 2, and a waterproof for receiving water is provided below. An air purification device for arranging a pan 4 to form a purification section, and for purifying air by suctioning and aspirating air to be purified through a ventilation path A with an intake fan 6, and supplying water to the filter 2 during or after the purification operation. In the filter 2,
The front side of the ventilation path A is inclined and disposed so as to face downward, and the water supply means sprays and supplies water substantially parallel to the front side of the ventilation path A of the same filter or at an acute angle to the front side of the ventilation path A. Like that.

In the air purifying apparatus 1 according to the embodiment, the filter 2 has long holes 21a, 22a long in the vertical direction.
A plurality of perforated plates 21 and 22 formed by arranging a large number of
The two long holes 21a, 22a and the other non-holes 21b, 22b of the adjacent perforated plates are arranged side by side substantially parallel to the front and rear of the ventilation path A.

More specifically, the air purification device 1 is installed in a kitchen such as a house, for example, and as shown in FIG.
Oil smoke 11 and the like generated during cooking are sucked into the inside of the hood main body 5 from the opening 5a on the lower surface side of the hood main body 5 which is the entrance of the ventilation path A, and the air is purified by the filter 2 of the purifying section. The air is exhausted to the outside 14 through the air duct 9, and controls the water supply to the filter 2, the water supply nozzle 3 and the waterproof pan 4, the hood body 5, the intake fan 6, and the water supply nozzle 3 which constitute the purification unit. And an electromagnetic valve 7. In this case, the operation of the intake fan 6 and the solenoid valve 7 is controlled by a control unit (not shown) formed, for example, including a microcomputer.

The filter 2 is formed of a metal plate material such as a stainless steel material. In this case, as shown in FIG.
It is constituted by a perforated plate 21 on the front side of the ventilation path A and a perforated plate 22 on the rear side of the perforated plate 21. That is, the filter 2 has a perforated plate 21 in which many long holes are arranged in a horizontal direction,
22 has a double structure in which two sheets 22 are stacked in front and rear in parallel.
As shown in FIG.
1a and the non-porous portion 22b of the other perforated plate 22 face each other. In this case, the long hole 21a of the perforated plate 21 is a single long hole communicating from the upper part to the lower part, and the vertical edge is open. At each edge in the vertical direction, the non-hole portion 21b is connected by a connection piece 21c, and the connection piece 21c is bent substantially in an L shape toward the rear side of the ventilation path A.

In this case, as shown in FIG. 4, the filter 2 is disposed so as to be inclined such that the front side of the ventilation path A faces downward. The lower part of A is a waterproof pan 4, and the waterproof pan 4 is divided into a substantially central portion in the front-rear direction (the direction of air flow through the ventilation path A) of the waterproof pan 4 into a front side and a rear side of the ventilation path A. A dividing wall 52 is formed.
2 is constituted by a filter 2.

At the front end of the waterproof pan 4, a front wall 41 is provided diagonally toward the front, and the front end of the front wall 41 faces the inclined piece 51 of the hood body 5 via a gap. Therefore, the air that has entered through the opening 5 a on the lower surface side of the hood main body 5 flows through the ventilation path A between the inclined piece 51 and the front wall 41, is changed in direction by the inclined piece 51, and flows toward the filter 2. It has become. At the rear end of the waterproof pan 4, a partition plate 53 for closing the lower part of the ventilation path A is provided between the filter 2 of the ventilation path A and the intake fan 6.

The water supply nozzle 3 is a water supply means for supplying water to the filter 2, and is provided in front of the ventilation path A above the filter 2. In this case, as shown in FIG.
Two spray nozzles that spray in a fan shape with a spray angle of 0 degrees are used, and spray water is supplied in a direction substantially parallel to the front side of the ventilation path A of the filter 2. The water supply nozzles 3 and 3 spray water in a fan shape, and the water supply nozzles 3 wet a wide range of filter surfaces so that the fan shapes intersect. Therefore, when the direction of the spray from the water supply nozzle 3 is sprayed downward from above and sprayed along the front surface of the filter 2 substantially in parallel with the front surface of the filter 2, the spraying force from the water supply nozzle 3 is The dust attached to the front surface of the filter 2 can easily flow down due to a synergistic effect with the force of the gravity drop. The angle between the water supply nozzle 3 and the front side surface of the filter 2 may be an acute angle with respect to the front side surface of the ventilation path A, instead of being substantially parallel.

The water supply nozzles 3 and 3 have water supply nozzles 3 on their sides.
Cover 54 to prevent water sprayed from
A front cover 54a is provided above the filter 2 so as to face the dividing wall 52. In this case, as described above, the filter 2 is disposed such that the front side of the ventilation path A is inclined downward, and the water supply nozzle 3
Is provided so as to spray and supply water substantially parallel to the front side of the ventilation path A of the filter 2 or at an acute angle to the front side of the ventilation path A, so that water droplets from the filter 2 to the front side of the ventilation path A are provided. Can be reduced.

As shown in FIG. 1, a drain port 42 and a water level sensor 8 are provided at a rear portion of the waterproof pan 4, that is, at a position rearward and rearward of the filter 2 of the waterproof pan 4. The drainage pipe 42 is connected to the drainage port 42 via a trap portion such as a U-shaped trap. The drainage pipe 12 is connected to a drainage pipe of a kitchen or the like (not shown).

As the intake fan 6, a fan such as a sirocco fan is used, and a suction port 6a is provided at the front end. In this case, the positional relationship between the upper end of the suction port 6a and the upper end of the partition plate 53 is as shown in FIG.
The height of the upper end of the partition plate 53 is adjusted to the suction port 6 of the intake fan 6.
It is higher than the upper end of a.

A water supply pipe 13 for supplying water to the water supply nozzle 3 is provided with an electromagnetic valve 7. The solenoid valve 7 is controlled to be opened and closed together with the intake fan 6 by a control signal from a control unit (not shown). For example, during or after the purification operation by the intake fan 6, continuously or intermittently. The water is supplied from the water supply nozzle 3.

As a specific example of the opening / closing control of the solenoid valve 7 by the control unit, the solenoid valve 7 is controlled to be closed when the intake fan 6 is not used. By operating the operation switch of, the intake fan 6 is started to perform the purification operation. When the purifying operation is completed, the operation switch is operated to stop the operation of the intake fan 6, and the solenoid valve 7 is opened for a predetermined time after the operation of the intake fan 6 is stopped to supply water to the water supply nozzle 3. Then, water is sprayed downward from the water supply nozzle 3 in a fan shape, and the filter 2 is washed with the water. After the cleaning operation, oil, dust, and the like adhering to the filter 2 are washed out from the surface of the filter 2 to remove the water from the filter 2. The water is drained from a drain port 42 provided at the bottom.

The air purifying apparatus 1 described above performs the hood operation during the ventilation operation for purifying the air, that is, when the oil smoke 11 and the like generated during cooking in the range 10 are exhausted to the outside 14 through the air duct 9. By operating the intake fan 6 provided in the main body 5, the air to be purified including the oil smoke 11 and the like enters through the opening 5 a on the lower surface side of the hood main body 5, and the inclined piece 5
The air flows between the front wall 41 and the front wall 41, is turned by the inclined piece 51, is sent to the filter 2, and the oil and dust in the oily smoke 11 are separated and removed by the filter 2. That is, since the perforated plates 21 and 22 of the filter 2 are juxtaposed so that the long holes 21a and 22a and the non-hole portions 21b and 22b face each other, one oil component in the air to be purified is removed. Eye perforated plate 21
Is accelerated by the long hole 21a, collides with the non-hole portion 22b of the second perforated plate 22, is captured, separated and removed, and air purification is performed.

In this case, when the operation switch is operated, the ventilation operation is terminated, the solenoid valve 7 is opened, and water is supplied to the water supply nozzles 3, 3, and the water is supplied from the upper side of the porous plate 21 of the filter 2 for a predetermined time. It is sprayed along the front surface of the plate 21 substantially in parallel. As a result, the non-porous portions 2 of the perforated plates 21 and 22
The oil, dust, and the like captured in 1b and 22b are washed away.
That is, water flows in the non-porous portion 21b of the perforated plate 21 on the front side of the ventilation path A and the non-porous portion 22b of the perforated plate 22 on the rear side, and the long holes 21a,
It flows on the non-hole portions 21b and 22b along 2a. Further, at this time, since the filter 2 is disposed with the front side surface of the ventilation path A inclined downward, the water droplets sprayed and supplied from the water supply nozzle 3 substantially in parallel to the water droplets from the filter 2 are supplied to the front side. Scattering is prevented. Therefore, the height of the partition plate 53 for draining the scattered water to the intake fan 6 and the waterproof pan 4
Can be made small, and miniaturization becomes easy.

Therefore, the air purifying apparatus 1 described above
According to the method described above, oil and dust attached to the filter 2 of the purification section can be washed by the water supply, and the filter 2
Water droplets scattered by reflection from the filter can be directed to the lower part of the filter, so that clogging of the purification section with oil or dust can be eliminated, and maintenance of the purification section at regular intervals is almost unnecessary, and it is easy to downsize. Becomes

Further, oil, dust, and the like adhering to a plurality of perforated plates 21 and 22 which are formed by arranging a number of long holes in the vertical direction in the horizontal direction, which are filters 2 of the purifying section, are supplied together with water droplets. 21, 22 Slot 2 communicating from top to bottom
1a, 22a can flow over the non-porous portions 21b, 22b, and the spray water can be supplied to the non-porous portions 21b, 22b.
Therefore, the washing performance is improved, and the spray water supply does not hit the edge portions forming the non-hole portions 21b and 22b, so that it is possible to further prevent the water droplets from the filter 2 from scattering to the front side.

[0029]

As described above, the air purifying apparatus according to the first aspect of the present invention can wash oil, dust, and the like adhering to the filter of the purifying section by supplying water, and at that time, the filter from the water supplying filter. Since water droplets due to reflection can be directed downward of the filter, clogging of the purifying unit with oil or dust can be eliminated, and maintenance of the purifying unit at regular intervals is almost unnecessary, and downsizing is easy. .

The air purifying apparatus according to the second aspect has the same effects as those of the first aspect, and furthermore, a plurality of longitudinally long holes, which are filters of the purifying section when supplied with water, are formed by arranging in the horizontal direction. Oil and dust attached to the perforated plate can flow over the non-perforated portion along with a long hole communicating from the upper portion to the lower portion of the perforated plate along with water droplets, and the spray water supply hits the non-perforated portion. The cleaning property is improved, and spray water is not applied to the edge portion forming the non-porous portion, so that it is possible to further prevent the water droplets from the filter from scattering to the front side.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating an air purification device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a filter which is a main part of the air purification device.

FIG. 3 is an explanatory diagram of a filter which is a main part of the air purification device.

FIG. 4 is a partial configuration diagram illustrating a purification unit of the air purification device.

FIG. 5 is an explanatory diagram of a water supply nozzle of the air purification device.

FIG. 6 is a perspective view showing a filter which is a main part of an air purification device which is a conventional example of the present invention.

FIG. 7 is an explanatory view showing a filter of an air purifying apparatus as a conventional example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air purification apparatus 2 Filter 21, 22 Perforated plate 21a, 22a Elongated hole 3 Water supply nozzle (water supply means) 4 Waterproof pan 5 Hood main body 6 Intake fan A Ventilation path

Claims (2)

[Claims] 1. A purifying section is formed by arranging a filter in a ventilation path in a hood main body, arranging a water supply means in front of the ventilation path above the filter and a waterproof pan for receiving water below the filter. In an air purifying apparatus for supplying air to a filter during or after a purifying operation by purifying air by suctioning and ventilating air through a ventilation path with an intake fan, the filter is inclined such that a front side of the ventilation path faces downward. An air purifying device, wherein the water purifying means is provided and sprays water in a direction substantially parallel to the front side of the ventilation path of the filter or at an acute angle to the front side of the ventilation path. 2. The filter comprises a plurality of perforated plates formed by arranging a number of long holes in the vertical direction in the horizontal direction, and forming one long hole and the other non-hole of the adjacent perforated plates substantially parallel to the front and rear of the ventilation path. The air purifying apparatus according to claim 1, wherein the air purifying device is arranged in parallel with the portions facing each other.