JP2530592Y2 - Air purification system - Google Patents

Abstract

An air cleaner which comprises a filter device (F) for removing dispersed particles contained in air, a supply-discharge device for supplying a separating liquid (L) to the filter device (F) and, at the same time, discharging the separating liquid (L) which has picked up the dispersed particles, and a fan (35) for aspirating air. The filter device (F) has a partition plate (55) adapted to isolate an inlet (33) and an outlet (34) from each other and to have its lower edge (55b) immersed in the separating liquid sotred in a pan (46). The supply-discharge device has a discharge system which discharges by means of overflow 70. A first supply system continuously supplies the separating liquid (L) to the pan (46), and a second supply system (39) supplies liquid when the level of water in the pan (46) is lower than the overflow level. The cleaner may be used as a deodoriser, the liquid containing an aromatic agent. <IMAGE>

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifying system for removing dispersed particles and bacteria mixed in the air, and is particularly used in kitchens, barns, beauty salons, painting booths, food factories, precision machinery factories, and the like. It can be attached to a ventilation opening or a room, an air conditioner, or the like to remove oil, dust, odor, bacteria, and the like, and has improved fire prevention, cleaning workability, and maintenance cost.

[0002]

2. Description of the Related Art Conventional grease filter devices for kitchens are disclosed in Japanese Utility Model Laid-Open No. 57-123614 and Japanese Utility Model Laid-open No.
6, 57-11435, 57-18443
4 and the like are known.

As shown in FIG. 17, a grease filter device 15 disclosed in Japanese Utility Model Laid-Open Publication No.
It is attached to the inlet 18 of the exhaust duct 17 provided above. A fan 19 is provided at the other end of the exhaust duct 17 so as to guide oil smoke generated from the kitchen appliances 16 to the outside.

[0004] As shown in FIG. 18, a filter unit 20 of the grease filter device 15 has a frame 2 divided into front and rear parts.
1a and 21b, and one frame 21a has a section S
A plurality of letter-shaped guide plates 22 are provided, and the other frame 21b is provided.
Is provided with a vane plate 23 having a substantially V-shaped cross section so that the gap between the blade plate 23 and the guide plate 22 can be adjusted. Furthermore, spring 2
A plurality of rotating members 26 are connected to the connecting rod 25 to which the pulling force of 8 is applied. During normal operation, the rotating member 26 is locked by the temperature-sensitive element 24,
The gap between the guide plate 22 and the blade plate 23 is maintained at a predetermined size. On the other hand, when the temperature or the like rises abnormally due to the flame or the like from the kitchen appliance 16 reaching the filter section 20, the temperature-sensitive element 24 is bent and the locking of the rotating member 26 is released.
Then, the connecting rod 25 is pulled by the elastic force of the spring 28, and the rotating member 26 rotates to press the guide plate 22.
Thereby, the ends of the adjacent guide plates 22 come into contact with each other, and the flame is prevented from reaching the exhaust duct 17.

When the grease filter device 15 is operated, the oil smoke sucked from the suction port 27 passes through the gap between the guide plate 22 and the blade plate 23 and is guided to the exhaust duct 17. At this time, the oil smoke collides with the guide plate 22 and the blade plate 23, and the oil contained in the air is reduced by the two plates 2
It adheres to 2 and 23 and is separated.

[0006]

Another conventional grease filter device employs a so-called collision separation system in which oil-impregnated air collides with a plate member to adhere oil to the plate member and capture the oil. Due to its structure, this type of grease filter device causes a large amount of oil to adhere to the plate member when used for a long period of time. Particularly, in a grease filter device or the like which is installed relatively close to the fire in the kitchen, there is a risk that oil adhering to the plate member may be ignited.

Certainly, the above-described grease filter device and the like include a fire-preventing member (the temperature-sensitive bending element 24, the rotating member 26, the connecting rod 25, etc.), but oil also adheres to such a fire-preventing member. Therefore, there is a possibility that the operation may not be performed smoothly in an emergency.

Further, the conventional grease filter device has a problem that the operation of removing oil adhering to the guide plate 22 and the blade plate 23 is complicated, and the workability of the cleaning operation is extremely poor. Therefore, the maintenance cost of the grease filter device is also expensive.

Furthermore, such a grease filter device by collision separation is limited to capturing oil and the like, which are relatively large particles, and cannot be applied to capturing fine particles such as odor, dust, and bacteria. There is a disadvantage that.

The present invention has been made to solve the problems associated with the above-mentioned prior art, and is excellent in fire prevention and cleaning properties, and can stably and safely capture oil, odor, dust, bacteria, and the like. It is an object of the present invention to provide a versatile air cleaning system that can be performed.

[0011]

According to the first aspect of the present invention, there is provided a filter device for removing dispersed particles contained in air by a separation liquid, and a filter device for removing the separation liquid from the filter device. An air purification system comprising: a water supply / drainage device that supplies and discharges a separated liquid that has captured dispersed particles, wherein the filter device includes an inlet that sucks air mixed with the dispersed particles, and an air that has been cleaned. A filter box provided with a discharge port for discharging, a plate section provided at the bottom of the filter box for storing a separation liquid, and a lower end edge which shields the suction port and the discharge port and has a lower edge separated in the plate section. A partition plate provided by being immersed in a predetermined amount of liquid, wherein the water supply / drainage device has a space facing the discharge port.
And a drainage system in which an inflow port through which the separated liquid in the dish portion flows is disposed at a position higher than a lower end edge of the partition plate, and the separated liquid in the dish portion is supplied to the drainage system through the drainage system.
A first water supply system that supplies a predetermined flow rate of the separated liquid into the dish so as to overflow the inlet, and a water level in the dish that is higher than a first water level determined by a height of the inflow port of the drainage system. of when it is lower second level
And a second water supply system for supplying the separated liquid into the dish portion.

[0012] In the air purifying system according to claim 2, the water supply / drainage device further includes an opening / closing means provided in the first water supply system and capable of opening and closing the first water supply system, and the first water level. Upper limit water level detecting means for detecting a higher upper limit water level, control means for closing the first water supply system by closing the opening / closing means when the upper limit water level is detected by the upper limit water level detecting means, and detecting the upper limit water level Alarm generating means for generating an alarm when the alarm is issued.

[0013] In the air purifying system according to claim 3, the water supply / drainage device further includes a lower limit water level higher than a height of the lower end edge of the partition plate and lower than the second water level. It is characterized by comprising a lower limit water level detecting means for detecting, and an alarm generating means for issuing an alarm when detecting the lower limit water level.

In the air purifying system according to a fourth aspect, the water supply / drainage device is further provided in the first water supply system.
Vignetting and closable closing means the first water supply system, wherein
Opening / closing the first water supply system by opening / closing the opening / closing means
Control means, and time setting means for setting a start time for opening the first water supply system by opening the opening / closing means and a stop time for closing the first water supply system by closing the opening / closing means. When the start time comes, the control means opens the opening / closing means to supply the separated liquid through the first water supply system into the dish portion, and closes the opening / closing means at the stop time. It is controlled to be activated to stop the supply of the separated liquid.

[0015]

In the filter device of this air purifying system, since the lower edge of the partition plate is immersed in the separated liquid stored in the plate portion, the water surface of the separated liquid is equal to the water surface on the discharge port side and the water surface on the suction port side. It is separated from the water surface. Therefore, when air is sucked from the outlet, the air pressure on the outlet side becomes lower than the air pressure on the inlet side, the water level on the outlet side rises, and the water level on the inlet side drops. When the water level on the suction port side becomes slightly lower than the lower edge of the partition plate, the air containing the dispersed particles sucked from the suction port passes through this gap, and bubbles are generated on the water surface on the discharge port side where the water level rises. Floating in shape. As the air passes through the separation liquid in this manner, the dispersed particles are separated from the air and captured in the separation liquid.

During the removal of the dispersed particles, the separated liquid is supplied into the dish through the first water supply system of the water supply and drainage device, and the level of the separated liquid in the dish is higher than the inlet of the drainage system. Get higher. Then, the separated liquid in the pan
The separated liquid overflows from the side facing the discharge port and is discharged through the drainage system. Since the removed dispersed particles are discharged from the filter device with the drainage , the removed dispersed particles do not accumulate in the filter device.
Further, when the water level of the separated liquid in the dish becomes lower than the overflowing water level, the separated liquid is supplied into the dish through the second water supply system. Thereby, the separation liquid in the dish portion is maintained at the predetermined water level, so that the separation liquid stably captures the dispersed particles.

When the water level in the dish detects the upper limit water level, the opening / closing means provided in the first water supply system is closed by the control means to stop the water supply from the first water supply system.
An alarm is issued by the alarm generating means. As a result, the separated liquid does not overflow from the plate portion, and the operator recognizes that a drainage failure has occurred in the drainage system of the water supply / drainage device.

When the water level in the dish detects the lower limit water level, an alarm is issued by the alarm generating means. Thereby, the worker recognizes that the water supply failure has occurred in both the first water supply system and the second water supply system of the water supply / drainage device.

The control means starts water supply from the first water supply system at the start time set by the time setting means, and stops water supply at the stop time. By performing the timer control in this manner, the convenience of the air cleaning system is enhanced.

[0020]

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

FIG. 1 is an overall configuration diagram showing an embodiment in which the air cleaning system of the present invention is applied to a kitchen, FIG. 2 is a front sectional view showing a stopped state of the filter device shown in FIG. 1, and FIG. FIG. 4 is a front sectional view showing an operation state of the filter device, and FIG. 4 is a side sectional view showing an operation state of the filter device.

An outline of an air cleaning system applied to a kitchen will be described. As shown in FIG.
A filter device F provided in a hood 32 hanging from the ceiling 31 of the kitchen to remove dispersed particles contained in air;
A supply / drainage device W that supplies the separation liquid L to the filter device F and discharges the separation liquid L capturing the dispersed particles. In this embodiment, kitchen equipment 1
Oil and the like generated from 6 correspond to dispersed particles. Ideally, the separation liquid L dissolves oil and does not ignite, but in this embodiment, water, a non-foaming detergent aqueous solution, or the like is used as a familiar liquid.

The filter device F is formed with a suction port 33 for sucking air and a discharge port 34 for discharging air. The discharge port 34 has an exhaust duct 36 provided with a fan 35.
Is connected. When the fan 35 is operated, air in the kitchen is sucked into the filter device F from the suction port 33,
Dispersed particles such as oil contained in the air are captured by the separation liquid L. Then, the purified air is supplied to the outlet 34.
Then, it is taken into the duct 36 and blown out from the outlet 37 to the outside. On the other hand, the water supply / drainage device W is a first water supply system 38 that supplies a predetermined flow rate of the separation liquid L to the filter device F.
A second water supply system 39 that supplies the separated liquid L when the water level of the separated liquid L in the filter device F becomes lower than a predetermined water level, and a drainage system 40 that drains the separated liquid L in the filter device F. And Further, a control device 42 (control means) for timer-controlling the opening and closing of an electromagnetic valve 41 (opening / closing means) provided in the first water supply system 38 is provided. The control device 42 issues a predetermined alarm when detecting a failure in the drainage system 40 or when detecting failure in water supply by the first and second water supply systems 38 and 39.

First, the filter device F will be described in detail. As shown in FIGS. 2 to 4, the filter device F includes a filter box 45 having a substantially box shape and an upper surface opened, a dish portion 46 attached to a lower portion of the filter box 45 and containing the separated liquid L. Having. The filter box 45 is composed of an inclined side wall 47 shown in FIGS. 2 and 3 and front and rear walls 48 and 49 shown in FIG.
Is screwed to the lower end of the plate. At the upper end of the side wall 47, a mounting flange 50 is formed. By fastening a screw 52 to the ceiling 31 of the kitchen through a plurality of mounting holes 51 formed in the mounting flange 50,
The filter device F of the present embodiment is fixed to the ceiling 31. Between the side wall 47 of the filter box 45 and the plate portion 46,
A suction port 33 for sucking air is formed, and a filter box 45 is formed.
A discharge port 34 for discharging air is formed on the upper surface of. The outlet 34 communicates with a duct 36 connected to the opening 53 in the ceiling.

A partition plate 55 is attached to each side wall 47 for separating the inlet 33 from the outlet 34. As shown in FIG. 5 in an enlarged manner, the partition plate 55 has a lower end 5.
5a is bent so as to extend in the vertical direction, and a long hole 57 through which a pin 56 provided on the side wall 47 penetrates is formed near the upper end. The partition plate 55 is fixed to the side wall 47 by fastening a wing bolt 58 to a screw portion formed at the tip of the pin 56. FIG.
As shown in (2), the lower end edge 55b of the partition plate 55 is immersed in the separated liquid L stored in the dish portion 46 by a predetermined length m. In order to make the immersion length m of the lower edge 55b uniform, the lower edge 55b of the partition plate 55 is preferably arranged substantially horizontally. The immersion length m is a value determined by the amount of air discharged from the fan 35, the size of the filter device F, and the like. In the present embodiment, the immersion length m is determined by moving the partition plate 55 along the pins 56. Can be easily set or adjusted. In addition, a sealing member (not shown) or the like is interposed between the vertical side edge of the partition plate 55 and the front and rear walls 48 and 49 of the filter box 45, and the suction port 33 side and the discharge port 3 are provided.
It is preferable to completely separate the four sides.

Further, in the filter device F, a separating member 61 having a plurality of ventilation holes 60 is provided downstream of the partition plate 55. When the filter device F is operated, the separating member 61 allows the air passing through the lower end edge 55b of the partition plate 55 to pass through the ventilation hole 60, thereby draining water droplets contained in the air or removing oil. This is for re-separating dispersed particles having a relatively large specific gravity, or for rectifying air. In order to hold the separation member 61, an upper holding plate 62 and a lower holding plate 63 are provided.

The lower holding plate 63 has a predetermined gap 64 formed between the lower holding plate 63 and the dish 46 at the lower end edge 63a. The gap 64 is formed so that the separated liquid L is formed so that the water level of the space S1 formed between the partition plate 55 and the separation member 61 and the space S2 formed between the two separation members 61 are equal. Functions as a passage for circulation. Separation member 61
Of the filter box 45 are the front and rear walls 48, 4
9 (FIG. 4)
reference). In order to prevent the air in the space S1 from flowing into the space S2 without passing through the separation member 61,
It is preferable to attach the separation member 61 via a seal member or the like. Further, in order to prevent air that has passed through the lower edge 55b of the partition plate 55 from directly floating in the space S2 below the lower holding plate 63, the lower edge 63a of the lower holding plate 63 is The partition plate 55 is immersed in the separation liquid L deeper than the lower edge 55b. The reason why air bubbles passing through the partition plate 55 do not pass through the lower end edge 63a of the lower holding plate 63 is as follows. The air guided to the outlet 34 through the lower edge 63a of the lower holding plate 63 without passing through the separating member 61 contains a large amount of moisture,
This is because such humid air flowing down the duct 36 causes rust in the duct 36 and the fan 35.

Air bubbles are generated at the lower edge 6 of the lower holding plate 63.
Since the separation member 61 is not provided and the separation member 61 is provided, dispersed particles insoluble in water such as oil are trapped between the partition plate 55 and the separation member 61. Therefore, even if the suction force of the fan 35 is strong, the dispersed particles do not float from the surface of the separation liquid L and are not guided to the duct 36.

In this embodiment, the separating member 61 is constituted by a porous body 65 having a large number of continuous holes. Specifically, it is preferable to use a ceramic foam material for the porous body 65. More specifically, a ceramic formed of a material such as alumina, zirconia, or zirconia-mullite, and having a porosity of 70% or more is preferable. The pore size depends on the suction force of the fan 35 to be used and the type of dispersed particles to be removed. However, when removing dispersed particles having a large particle size such as oil, a ceramic foam having a relatively large pore size is usually used. Use materials. For removing fine particles such as odor, it is preferable to use a ceramic foam material having a relatively small pore size. For example, if the number of cells formed of a ceramic skeleton arranged between one straight line and one inch is defined as “cell number”, the number of cells = 6 for removing dispersed particles having a relatively large particle diameter such as oil. Is preferable, and a ceramic foam material having 40 cells is preferable for removing fine particles such as odor.

The porous body 65 used for the separating member 61 is
It is not limited to the ceramic foam material described above,
Organic materials such as a porous film of a polymer material, metal materials such as foamed metal, glass wool, and the like can also be used. The material of the porous body 65 is determined by the type and the particle size of the dispersed particles to be removed, and by changing the material, for example, any particles such as oil, odor, dust, bacteria, etc. The filter device F that can be removed is excellent in versatility.

Next, the water supply / drainage device W having the first water supply system 38, the second water supply system 39, and the drainage system 40 will be described in detail. As shown in FIG. 2, the drainage system 40 has an overflow pipe 70 attached to a central portion of the dish 46 of the filter device F, and an inflow port 72 of the overflow pipe 70 is connected to a lower edge 55 b of the partition plate 55. It is located at a higher position. The height of the inflow port 72 has such a height that the lower end edge 55b of the partition plate 55 is immersed in the separation liquid L even when the partition plate 55 is moved to the uppermost position. Therefore, in a state where the water level in the dish 46 is higher than the inflow port 72 of the overflow pipe 70 and the separated liquid L is overflowing, the lower edge 55b of the partition plate 55 is always immersed in the separated liquid L. I have.

The first water supply system 38 is for supplying a predetermined flow rate of the separation liquid L into the dish 46, and as shown in FIG. 4, a first water supply pipe provided near the inner surface of the rear wall 49. 7
One. When the filter device F is operating, a predetermined flow rate of the separation liquid L is continuously supplied into the dish 46 from the first water supply port 73 provided at the end of the first water supply pipe 71. Since the water level in the dish portion 46 rises with the water supply from the first water supply port 73, the drainage from the overflow pipe 70 and the water supply from the first water supply port 73 are continuously performed.

The second water supply system 39 supplies the separated liquid L to the plate 4 when the level of the separated liquid L becomes lower than a predetermined level.
6, and as shown in FIG.
It has a second water supply pipe 74 provided near the inner surface of the front wall 48. The second water supply pipe 74 is provided with a float valve 77 composed of a float 75 and a valve portion 76 that opens and closes in response to the float of the float 75. When the filter device F is operating, the float valve 77
The following operation is performed to maintain the state of the separated liquid L contained in the plate portion 46 in the overflow state.

When the water level of the separation liquid L is
Is lower than the height of the inflow port 72, that is, the water level at which the separated liquid L in the plate portion 46 overflows (hereinafter referred to as the overflow water level), the float valve 77 is set at the liquid level. With the lowering of the float 75, the float 75 goes down to open the valve portion 76. Thereby, the separated liquid L is supplied from the second water supply port 78 provided at the end of the second water supply pipe 74.
Is supplied into the dish 46. On the other hand, when the water level of the separated liquid L is higher than the overflow water level, the float valve 77 closes the valve section 76 with the float 75 rising with the rise of the liquid level. Thereby, the supply of the separation liquid L is stopped. Therefore, in a state where the filter device F is stopped or a state where the separated liquid L is overflowing, the second water supply system 39 does not operate, and the separated liquid L is not supplied from the second water supply port 78.

As shown in FIG. 4, in order to detect the water level of the separated liquid L, an upper limit water level sensor 79 as upper limit water level detecting means and a lower limit water level sensor 8 as lower limit water level detecting means are provided.
0 is provided in the dish portion 46. Upper limit water level sensor 7
9 is higher than the height of the inlet 72 of the overflow pipe 70 and the separated liquid L is
6 means water level that does not leak out. On the other hand, the lower limit water level detected by the lower limit water level sensor 80 is the float valve 7
7 means a water level lower than the operating water level and higher than the height of the lower end edge 55b of the partition plate 55. The lower limit water level is also a water level at which the lower edge 55b of the partition plate 55 is immersed in the separation liquid L even when the partition plate 55 is moved to the uppermost position. Each of the water level sensors 79 and 80 is constituted by a float type sensor. The upper limit water level sensor 79 outputs an ON signal when detecting the upper limit water level, and the lower limit water level sensor 80 outputs an ON signal when detecting the lower limit water level. These water level sensors 79, 80 are housed in a sensor box 81 provided near the inner surface of the rear wall 49.

As shown in FIG. 1, the overflow pipe 70
Is connected to the grease trap 83, and the separated liquid L flowing into the overflow pipe 70 is
After the oil is removed by the grease trap 83, the grease is discharged to the drain groove 84.

A water supply pipe 85 connected to a supply source (not shown) for supplying the separated liquid L branches off into a first water supply pipe 71 and a second water supply pipe 74 downstream of the main valve 86. A bypass passage 87 is formed in the first water supply pipe 71, and the solenoid valve 41 is provided in the bypass passage 87. The solenoid valve 41 functions as an opening / closing means that can open and close the first water supply system 38. Valves 88 and 89 are provided on the upstream and downstream sides of the branch portion of the bypass passage 87, respectively.
4 is also provided with a valve 90. Main valve 86
Is open during normal operation, and the first and second water supply systems 3
It is closed when the filter device F is inspected by shutting off 8, 39. The valve 88 and the valve 90 are open during normal operation, and are closed when the first and second water supply systems 38 and 39 are individually shut off. The valve 89 is closed during the normal operation, and when the separation liquid L is initially supplied into the filter device F, a large amount of the separation liquid L is supplied in order to promote the cleaning of the filter device F and the replacement of the separation liquid L. It is opened when you do. Although a plurality of filter devices F may be installed according to the size of the kitchen, the first and second water supply pipes 71 and 74 are also branched to other filter devices F indicated by phantom lines in FIG. Connected.

Further, the water supply / drainage device W has a control device 42 for controlling the opening and closing of the solenoid valve 41. In the illustrated example, one electromagnetic valve 41 is provided in the first water supply pipe 71, and this electromagnetic valve 4
The separation liquid L to a plurality of filter devices F by only opening and closing
Supply and stop supply. Of course, an electromagnetic valve may be provided for each first water supply pipe 71 connected to each filter device F, and a plurality of electromagnetic valves may be individually opened and closed.

As shown in FIG. 6, external power is supplied to a control box 95 of the control device 42 via a cable 96, and a built-in control circuit is driven. In addition, on the operation surface of the control box 95, a power supply display lamp 97 that lights up when external power is supplied, a water supply display lamp 98 that lights up and shuts off in conjunction with the opening and closing of the solenoid valve 41, and a lower limit water level is detected. A blinking drought warning lamp 99, first to fourth warning display lamps 100 indicating which of the plurality of, for example, four, filter devices F has a failure, and a warning buzzer for stopping a warning buzzer as a warning generating means. A buzzer stop switch 101 is provided.

FIG. 7 is a block diagram showing a control system of the control device. External power is supplied to the control circuit 102 from the power supply 104 via the power supply circuit 103, and signals from the upper limit water level sensor 79 and the lower limit water level sensor 80 are input. From the control circuit 102, a control signal for controlling the opening and closing of the solenoid valve 41, a control signal for turning on / off or blinking each of the lamps 97 to 100, and an alarm buzzer 10
The control signal for operating or stopping 5 is output.
Further, a timer 106 and a buzzer stop switch 101 are connected to the control circuit.

The alarm buzzer 105 functions as an alarm generating means. When the upper limit water level sensor 79 is turned on, that is, when the water level in the dish 46 reaches the upper limit water level, or
When the lower limit water level sensor 80 is turned on, that is, when the water level in the dish 46 reaches the lower limit water level, a buzzer sound is emitted. During normal operation, the separated liquid L supplied from the first water supply system 38 is adjusted to an appropriate flow rate. For this reason, unless a drainage failure occurs in the drainage system 40, the water level in the dish portion 46 does not rise to the upper limit water level. Further, in the present embodiment, even if the first water supply system 38 fails to supply water for some reason, the float valve 77 operates to supply the separated liquid L from the second water supply system 39. I have. For this reason, the water level in the plate portion 46 does not drop to the lower limit water level unless the water supply failure occurs in both the first and second water supply systems 38 and 39. Therefore, the alarm buzzer 105
Emits a buzzer sound to indicate to the operator that the drainage failure of the drainage system 40 has occurred, or that the first and second water supply systems 38 and 39 have had poor water supply. . Further, whether the water shortage warning lamp 99 is blinking or off is indicated to the operator as to whether it is a drainage failure or a water supply failure.

The timer 106 functions as time setting means, and starts the supply of the separated liquid L by the first water supply system 38 and stops the supply of the separated liquid L by the first water supply system 38. The stop time can be set. When the timer 106 counts the start time, the solenoid valve 41 is opened based on a signal from the control circuit 102. On the other hand, when the timer 106 counts the stop time, the solenoid valve 41 is closed. .

Next, the operation of this embodiment will be described. First, the operation of capturing the dispersed particles contained in the air with the filter device F will be described with reference to FIGS.

As shown in FIG. 2, when the fan 35 provided on the outlet side of the duct 36 is operated while the water is stored in the dish 46, as shown in FIG.
Is lower than the air pressure on the suction port 33 side, the water level on the discharge port 34 side partitioned by the partition plate 55 rises, while the suction port 33 partitioned by the partition plate 55 is increased.
The water level on the side drops. The water level on the suction port 33 side is
Is slightly lower than the lower edge 55b of the partition plate 55, the air sucked from the suction port 33 passes through the lower edge 55b of the partition plate 55 and is guided into the water. At this time, since the lower edge 63a of the lower holding plate 63 holding the separating member 61 is immersed in the water deeper than the lower edge 55b of the partition plate 55, the air led into the water is separated from the partition plate 55 by the air. It passes between the lower holding plate 63 and becomes a bubble and floats on the water surface of the space S1 (hereinafter, this state is referred to as bubbling). At the time of this bubbling, most of the dispersed particles such as oil contained in the air are separated from the air and captured in the water, and float on the water surface or are mixed in the water.

When the air that has reached the space S1 passes through the separation member 61 formed of the porous body 65, the oil and the like slightly remaining in the air are further separated or removed by the porous body 65. At the same time, air flows through the air holes 60 of the porous body 65.
When passing through, the air flow is rectified, and the water scattered from the water surface is drained. The rectification of the air flow also prevents the generation of wind noise. The air from which the dispersed particles such as oil are completely removed is the space S
2, flows down from the outlet 34 to the duct 36, and is blown out from the outlet 37 to the outside.

The oil, dust and the like captured in the water by bubbling are discharged from the dish 46 as the water overflows into the overflow pipe 70. On the other hand, new water L is supplied into the dish 46 from the first water supply system 38 or the second water supply system 39.

Next, the operation of the water supply / drainage device W will be described with reference to the flowcharts shown in FIGS.

In step S1, the control box 9
When the external power is supplied to the power supply 5, the power supply display lamp 97 is turned on. After setting the start time and the stop time after setting the timer 106 to the current time, the timer 106 starts operating (S2). When the timer 106 counts the start time (S3), the solenoid valve 41 provided in the first water supply system 38 is opened based on a signal from the control circuit 102. Thus, a predetermined flow rate of water is supplied from the first water supply port 73 of the first water supply pipe 71 into the dish 46 (S4). Also, the solenoid valve 41
The water supply indicator lamp 98 is turned on in conjunction with the opening of the button (S5). The separation liquid L is supplied and the fan 35
Is driven, air is sucked into the filter device F from the suction port 33, and the above-described bubbling is performed. Further, a part of the water in the dish portion 46 flows into the overflow pipe 70 of the drainage system 40, and is discharged to the drain groove 84 through the drain pipe 82 and the grease trap 83 (S6). Oil and the like contained in the air sucked into the filter device F are captured in the water during bubbling, and further separated or removed by the separation member 61. The air from which oil and the like have been removed flows down to the duct 36 through the outlet 34 of the filter device F, and is blown out from the outlet 37 to the outside. On the other hand, the oil, dust, and the like captured in the water are discharged from the dish 46 together with the overflowed water. Thus, the filter device F
If is operating, a water supply / drainage safety check process is performed (S7). This processing will be described later with reference to FIG. Then, steps S6, S7, and S8 described above are repeated until the stop time is reached, and when the timer 106 counts the stop time (S8), the electromagnetic valve 41 is closed based on a signal from the control circuit 102, and the first water supply is performed. Line 3
The supply of the separation liquid L from 8 is stopped (S9). Further, in conjunction with the closing of the solenoid valve 41, the water supply display lamp 98 is turned off (S10). Thereafter, the process returns to step S3, where it is determined whether or not the start time of activating the filter device F has come. If the time has come, the processing from step S4 is performed as described above.

The water supply / drainage safety check process in step S7 will be described with reference to FIG. This water supply / drainage safety check process is performed based on the water level in the dish 46, and the output signals of the upper limit water level sensor 79 and the lower limit water level sensor 80 are input to the control circuit 102.

During operation of the filter device F, in order to appropriately capture oil and the like by bubbling, the plate portion 46 is required.
It is necessary to keep the water in the overflowing state. In order to maintain this state, the first water supply system 38 is adjusted to supply a predetermined flow rate of water.
However, the amount of water supply may change due to pressure fluctuation of the supply source or the like. Therefore, the float valve 77 provided in the second water supply system 39 operates as follows according to the water level in the dish portion 46.

The water level in the dish 46 is detected by the float 75 of the float valve 77 floating up and down (S13). When the water level becomes lower than the overflow water level, the float 75 is lowered and the valve 76 is opened. Water is supplied from the second water supply port 78 of the second water supply pipe 74 into the dish portion 46 (S27). On the other hand, when the water level becomes higher than the overflow water level, the float 75 rises, the valve portion 76 is closed, and the water supply is stopped (S28). In this way,
The water in the dish 46 is maintained in an overflow state.

If the flow of water in the drainage system 40 becomes bad during operation of the filter device F for some reason, a predetermined flow rate of the separated liquid L is continuously supplied from the first water supply system 38. Then, the water level in the plate portion 46 gradually rises. When the water level further rises and reaches the upper limit water level, the upper limit water level sensor 79 is turned on (S11). When the control circuit 102 detects the occurrence of a failure in the drainage system 40 based on the ON signal from the upper limit water level sensor 79 (S14), the solenoid valve 41 is closed, and the water supply from the first water supply system 38 is stopped (S15). ), The water supply display lamp 98 is turned off (S
16). Further, the alarm buzzer 105 is activated to generate a buzzer sound (S17), and the alarm display lamp 100 corresponding to the filter device F in which the malfunction has occurred blinks (S1).
8). When the operator presses the buzzer stop switch 101, the buzzer sound of the alarm buzzer 105 stops (S19). The worker sees that the drought warning lamp 99 is off,
Recognizing that a drainage failure has occurred in the drainage system 40, and looking at the blinking alarm display lamp 100, it is possible to recognize which of the four filter devices F has a failure. When the operation of the first water supply system 38 is stopped, the water level in the dish portion 46 gradually decreases (S20). Thereafter, the flow returns to the main flow, and the filter device F continues its operation. When the water level in the dish 46 falls below the overflow water level as the operation continues, the float valve 77 operates as described above, and water is supplied from the second water supply system 39 (S13, S27, S28).

In the present embodiment, only the second water supply system 39 can supply an amount of water necessary for normally operating the filter device F. For this reason, even if a drainage failure occurs in the drainage system 40, it is not necessary to take any countermeasures immediately, and after the use of the kitchen is completed and the filter device F is stopped, inspection and cleaning of the drainage system 40 are performed. Just do it.

When the water supply / drainage device W is operating normally, water is constantly supplied from the first water supply system 38,
Water is supplied from the second water supply system 39 as needed. Also, even if the water supply by the first water supply system 38 is stopped for some reason in spite of the fact that the electromagnetic valve 41 is open, the float valve 77 operates to operate the second water supply system 3.
9 and therefore the water level in the dish 46 is
It will not be extremely lower than the overflow water level,
It will be kept at the predetermined water level. However, in addition to the water supply failure of the first water supply system 38, when the float valve 77 malfunctions and the water supply by the second water supply system 39 is stopped, the water in the plate 46 is overflowed with the bubbling. 70, and the water level in the dish portion 46 gradually decreases.

When a water supply failure occurs during the operation of the filter device F and the water level reaches the lower limit water level, the lower limit water level sensor 80
Is turned on (S12). When the control circuit 102 detects the occurrence of a failure in the first and second water supply systems 38 and 39 based on the ON signal from the lower limit water level sensor 80 (S21), the alarm buzzer 105 is activated to generate a buzzer sound (S2).
2) The drought warning lamp 99 blinks (S23), and the warning display lamp 1 corresponding to the filter device F in which the malfunction has occurred.
00 blinks (S24). When the operator presses the buzzer stop switch 101, the buzzer sound of the alarm buzzer 105 stops (S25). The worker sees that the drought warning lamp 99 is blinking, and recognizes that the water supply failure has occurred in both the first water supply system 38 and the second water supply system 39.
In addition, by looking at the blinking alarm display lamp 100, it is recognized which filter device F has a problem. Even in the case where malfunction occurs in both the first and second water supply systems 38 and 39, since the lower limit water level is set at a position higher than the lower edge 55b of the partition plate 55, the sucked air does not pass through the water. Does not reach the discharge port 34. However, since the immersion depth of the partition plate 55 becomes shallow, and the efficiency of capturing oil by bubbling decreases, predetermined restoration work such as inspection of a water supply source is performed (S26).

As described above, in the air cleaning system 30 applied to the kitchen, the air containing oil is passed through the water stored in the filter device F, and the oil is captured in the water by bubbling. Therefore, oil can be efficiently removed from the air. According to the experimental results of this example, the trapping or removing rate of the fat and oil was about 99%, the trapping rate of dust was almost 100%, and the trapping rate of odor was about 80%. As described above, the oil trapping rate in the filter device F is high, and the oil trapped by the operation of the water supply / drainage device W is discharged together with the overflowing water. Does not adhere to the inner surface of the fan 35 and the outlet 37. Therefore, cleaning of the filter device F becomes easy, and cleaning of the duct 36, the fan 35, and the like becomes unnecessary. Further, since the oil does not scatter outside from the outlet 37, the outer wall of the building is not stained, and cleaning and repair of the wall surface are not required. Further, since the oil does not accumulate in the filter device F and does not adhere to the fan 35, the efficiency of removing the oil and the exhaust efficiency of the fan 35 do not decrease, and the air cleaning system 30 is stable for a long time. It works.

Further, even if the flame in the kitchen reaches the filter device F, the flame is blocked by the separated liquid and does not flow into the duct 35. In this way, the flame is shut off and, as described above, there is no accumulation or adhesion of the oil, so that the fire resistance is significantly improved. Further, the filter device F
Since the temperature of the air exhausted from the air decreases with bubbling, the temperature of the duct 36 and the fan 35 does not become high, and it is not necessary to employ a heat-resistant structure for the duct 36 and the like.

Further, when a drainage failure occurs in the drainage system 40, the water supply / drainage device W stops the water supply from the first water supply system 38 and issues an alarm, so that the separated liquid L does not overflow from the plate portion 46. Therefore, the operator can easily recognize the occurrence of poor drainage. In addition, plumbing device W
Alerts the operator when a water supply failure occurs in the first and second water supply systems 38 and 39, so that the worker can quickly take appropriate measures for the water supply failure and reduce the separation efficiency due to the lowering of the water level. Lowering can be prevented beforehand. In addition, since the electromagnetic valve 41 provided in the first water supply system 38 of the water supply / drainage device W is timer-controlled, the supply start and supply of the separated liquid L can be automatically performed in accordance with the usage time of the kitchen. In addition, the convenience of the air cleaning system 30 is significantly improved. The electromagnetic valve 41 may be turned on and off in conjunction with turning on and off the switch of the fan 35.

Further, in the filter device F, since the mounting position of the partition plate 55 can be changed, the partition plate 55 can be placed underwater in accordance with the separation performance and the ventilation performance due to a difference in the amount of air discharged from the fan 35 and the like. The immersion depth m can be finely adjusted to a suitable depth. Also, as shown by the phantom line in FIG. 2, if a viewing window 54 is provided in the filter device F so that the water level at the time of operation can be visually observed, the adjustment of the mounting position of the partition plate 55 allows the water level from the viewing window 54 to be adjusted. It can be easily performed while checking the fluctuation.

Although the case where the air cleaning system 30 is applied to a kitchen has been described, the present invention is not limited to this case. Depending on the purpose of use of the air purification system 30,
By appropriately selecting the type of the separation liquid L and the material of the separation member 61 used in the filter device F, the air cleaning system 30 can be applied to a wide range of applications. For example, when used as a deodorizing device, a conventionally known deodorizing liquid may be stored, and a separation liquid L capable of suitably dissolving fine particles of generated odor different depending on the place of use such as a livestock barn or a beauty salon may be used. Just select the type. It is also effective when used for the primary treatment of the deodorant system. When used as an indoor air purifier, the separated liquid L
As a fragrance, it is possible to remove dust contained in room air and at the same time, to supply a comfortable odor to the room. Further, when used in a food factory or the like, it may be configured to capture bacteria by using a disinfecting liquid. When bacteria in the air were captured using the disinfecting liquid as the separation liquid L, the capture rate was about 90%.

The filter device F in the air cleaning system 30 of the present invention is not limited to the above-described first embodiment, and various modifications are possible. Hereinafter, another embodiment of the filter device F will be described.

The filter device F of the second embodiment shown in FIG.
Is applied when the fan 35 is installed on the vertical wall 110. This filter device F has a configuration in which the filter device F of the first embodiment is cut in half in the vertical direction, the mounting flange 50 at the upper end of the side wall 47 is fixed to the ceiling 31, and the plate portion 46 is attached to the vertical wall 110. It is fixed. A partition plate 55 is attached at a position where the discharge port 34 and the room are shut off, and a lower edge 55 b of the partition plate 55
Is immersed by a predetermined length in the separation liquid L stored in the separation liquid L. The partition plate 55 is movably attached to the side wall 47 so that the immersion length m can be adjusted. On the downstream side of the partition plate 55, a separation member 61 made of a porous body 65 is provided. The lower edge 63a of the lower holding plate 63 for fixing the separation member 61 is
5 is immersed in the separation liquid L deeper than the lower edge 55b.

In this case as well, as in the first embodiment, when the fan 35 is operated, the water level of the separated liquid L on the suction port 33 side falls to the lower end edge 55b of the partition plate 55, The air sucked from the port 33 floats on the water surface of the space S1 through this gap. During this bubbling, most of the dispersed particles are captured in the separation liquid L. Further, the dispersed particles remaining in the air that has reached the space S <b> 1 are further subjected to collision separation when passing through the vent holes 60 of the porous body 65. Further, since the air is rectified when passing through the ventilation hole 60, generation of wind noise is prevented, and water droplets are prevented from being scattered from the water surface of the space S1 or the space S2 by the suction force of the fan 35. . For this reason, the fan 35
There is no rust around. Such a filter device F can be extremely easily reduced in size in terms of configuration.
For example, it is suitable for use in a general kitchen.

The filter device F of the third embodiment shown in FIG.
, The fan 35 is directly attached to the upper surface thereof. This filter device F has the same configuration as the filter device F of the first embodiment, except that the side wall 47, the partition plate 55, and the separating member 61 are arranged along the vertical direction.
The miniaturization is achieved. And this filter device F
For example, as an indoor deodorizing device or air purifier, it can be installed on the floor, installed on a table in a restaurant, or installed at any other desired location,
A simple air cleaning system for returning the clean air to the room can be configured. Further, the filter device F can be moved and installed at a desired place, and even when a water supply / drainage device is incorporated, the water supply pipes 71 and 74 and the water distribution pipe 8 can be installed.
If 2 is detachably configured via a connector or the like, it can be moved without any trouble.

The arrangement of the partition plate 55 and the separating member 61 along the vertical direction can be applied to the filter devices F of the first and second embodiments. Further, the simplified filter device F may be configured by directly attaching the fan 35 to the filter devices F of the first and second embodiments.

The fourth embodiment shown in FIG.
Filter device F modified with the structure of
It is. In this filter device F, a substantially quadrangular pyramid-shaped hollow portion 111 is formed on the bottom wall of the dish portion 46 that stores the separated liquid L. The dish portion 46 is formed by the hollow portion 111.
The rise of the temperature of the separated liquid L stored in the container is suppressed, and the evaporation of the separated liquid L is prevented. Also, by making the outer shape of the hollow portion 111 into a substantially quadrangular pyramid shape, for example, when the filter device F is installed in a kitchen, the air containing oil and the like from the kitchen appliance 16 can be removed from the dish portion 46. Does not collide with the lower surface of the device and flows smoothly and is sucked into the suction port 33.
This makes it difficult for oil to adhere to the lower surface of the dish 46.
Note that the outer shape of the hollow portion 111 is not limited to the shape shown in the illustrated example as long as the shape can reduce air resistance. For example, the outer shape of the hollow portion 111 can be appropriately modified in accordance with the shape of the mounting position of the filter device F, the amount of air discharged from the fan 35, and the like.

In this filter device F, the plate 46
A drain pipe 113 having a drain valve 112 is connected to the lowest part of the inside. This drain tube 113 is
It is connected to a drain pipe 82. Further, a water level gauge 114 is provided at a position on the suction port 33 side where the water level of the separated liquid L can be visually checked. By providing the drain tube 113, the separation liquid L in the dish portion 46 can be completely discharged, so that the replacement operation with the new separation liquid L can be performed quickly. Further, the immersion length of the partition plate 55 can be easily confirmed by the water level meter 114.

The separating member 61 in this embodiment is constituted by a separating plate 115 having a plurality of ventilation holes 60 formed therein. The upper end 115a of the separation plate 115 is
The lower end edge 115b is immersed in the separation liquid L deeper than the lower end edge 55b of the partition plate 55.

Also in this case, when the fan 35 is operated, the water level of the separated liquid L on the suction port 33 side falls to the lower end edge 55b of the partition plate 55, as in the first embodiment. The air sucked from the port 33 floats on the water surface of the space S1 through the lower edge 55b of the partition plate 55. During this bubbling, most of the dispersed particles are captured in the separation liquid L. The dispersed particles remaining in the air that has reached the space S1 are further separated by colliding around the ventilation holes 60 of the separation plate 115. Further, since the air is rectified when passing through the ventilation holes 60, generation of wind noise is prevented, and scattering of water droplets is also prevented.

The point that the hollow portion 111 is provided on the bottom wall of the dish 46 is the same as that of the filter device F of the first and second embodiments described above.
If the bottom wall of the cavity 111 is formed in a flat shape, the present invention can also be applied to the filter device F of the third embodiment which can be installed on a floor or the like. Further, the point at which the drain pipe is connected to the plate portion 46 and the separation member 61 is
15 may be applied to the filter device F of the first, second and third embodiments described above.

The fifth embodiment shown in FIG. 13 is a filter device F in which the mounting position of the separation plate 115 of the fourth embodiment is modified. In this filter device F, the filter box 45
The separation plate 115 is located near the discharge port 34 formed on the upper surface.
Is provided. Other configurations are the same as those of the fourth embodiment.

In the filter device F thus configured, when the fan 35 is operated, the water level of the separated liquid L on the suction port 33 side falls to the lower end edge 55 b of the partition plate 55, and is suctioned from the suction port 33. The air is supplied to the lower edge 55 b of the partition plate 55.
And floats on the water surface on the discharge port 34 side. During this bubbling, most of the dispersed particles are captured in the separation liquid L. Then, the dispersed particles remaining in the air are finally separated when passing through the separation plate 115 provided near the outlet 34. Further, the flow of the air is rectified by the separation plate 115, and the separation liquid L is prevented from scattering. By attaching the separation plate 115 in this manner, the structure of the filter device F is simplified, the productivity of assembly is improved, and the cost can be reduced.

The porous body 65 shown in the first embodiment and the like can be used.
It is also possible to apply the separation member 61 made of to the present embodiment.

In the filter device F of the sixth embodiment shown in FIGS. 14 and 15, the entire filter device F is formed in a cylindrical shape. It is formed on the bottom wall. In this dish 46,
The filter box 45 having upper and lower ends opened is connected to the connection member 116.
Attached through. Side wall 4 of filter box 45
At the upper end of 7, a mounting flange 50 and a plurality of bolt holes 51 are formed. The filter box 45 is integrally formed with a separation plate 115 having a cylindrical shape. The separation plate 115 has a plurality of ventilation holes 60 formed therein.
Further, a top plate 117 is provided between the separation plate 115 and the plate portion 46.
Is detachably provided. The lower edge 55b of the partition plate 55 is
And is immersed by a predetermined length m in the separation liquid L stored in the dish portion 46.

With such a configuration, the upper opening of the filter box 45 serves as the outlet 34, and the gap between the plate 46 and the partition plate 55 serves as the inlet 33. This suction port 33
Is blocked from the discharge port 34 by the partition plate 55 and is formed over the entire circumference of the filter device F. Then, when the filter device F is mounted on the ceiling 31 and the fan 35 is operated, the same operation and effect as those of the first embodiment are exerted.

The porous body 65 shown in the first embodiment and the like
It is also possible to apply the separation member 61 made of to the present embodiment.

The filter device F of the seventh embodiment shown in FIG.
Is a modification in which the position of the inlet 33 and the position of the outlet 34 are reversed. In the filter box 45, the partition plate 5
5 is erected, and its lower edge 55b is immersed in the separated liquid L stored in the dish 46 by a predetermined length. The inlet port 33 and the outlet port 34 are formed in a state where they are shielded from each other by the partition plate 55. Further, the lower edge 55 of the partition plate 55 is provided outside the partition plate 55, that is, on the discharge port 34 side.
Separator 115 immersed deeper than b is provided.

In this case as well, when the air is exhausted by the fan 35 provided at the outlet 34, the water level at the inlet 33 at the center of the filter box 45 drops, and the water level at the outlet 34 outside the filter box 45 rises. As a result, the operation and effect similar to those of the first embodiment are exhibited.

Such a filter device F can be suitably used, for example, for a smoke exhaust device provided on a table or a worktop. In this embodiment, the separating member 61 made of the porous body 65 can be applied.

It should be noted that the present invention is not limited to the specific examples described above, and various other modifications can be considered. The purpose of use, the structure of the filter device F, and the type of the separation liquid L are not limited. It may be changed appropriately according to the place of use. Such versatility is also one of the features of the present invention.

[0081]

As described above, according to the air cleaning system of the present invention, the suction air containing the dispersed particles is passed through the separated liquid stored in the filter device, and the dispersed particles are efficiently removed from the air. Can be removed. Furthermore, by selecting the type of the separation liquid, it is possible to remove the dispersed particles regardless of the type of the dispersed particles, so that it can be applied to a wide range of uses and has excellent removal performance. Further, for example, a flame generated from a kitchen or the like is completely shut off by the separated liquid, so that fire resistance is significantly improved.
Further, since a water supply / drainage device is provided to maintain the water level in the dish portion at a predetermined water level, it is possible to stably capture the dispersed particles by the separated liquid. Further, since the filter device has a structure in which the removed dispersed particles are discharged together with the separated liquid, the filter device is significantly improved in cleanability, and there is no possibility that a large amount of dispersed particles are accumulated, thereby further improving safety. Can be

Further, the water supply / drainage device stops the supply of water from the first water supply system and issues an alarm when a drainage failure occurs in the drainage system. The occurrence of poor drainage can be easily recognized. Further, the water supply / drainage device issues an alarm when a water supply failure occurs in the first and second water supply systems, so that the worker can quickly take appropriate measures for the water supply failure, and the separation efficiency accompanying the lowering of the water level. Can be prevented beforehand. In addition, by controlling the opening / closing means provided in the first water supply system of the water supply / drainage device by timer, there is an effect that the convenience of the air cleaning system is significantly improved.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment in which an air cleaning system of the present invention is applied to a kitchen.

FIG. 2 is a front sectional view showing a stopped state of the filter device shown in FIG.

FIG. 3 is a front sectional view showing an operation state of the filter device;

FIG. 4 is a side sectional view showing an operation state of the filter device.

FIG. 5 is a sectional view showing a main part of a partition plate and a side wall of the filter device.

FIG. 6 is an external perspective view showing a control box of the control device.

FIG. 7 is a block diagram showing a control system of the control device.

FIG. 8 is a flowchart showing the operation of the air cleaning system.

FIG. 9 is a flowchart showing a water supply / drainage safety check process of FIG. 8;

FIG. 10 is a sectional view showing a second embodiment of the filter device used in the air cleaning system.

FIG. 11 is a sectional view showing a third embodiment of the filter device.

FIG. 12 is a sectional view showing a fourth embodiment of the filter device.

FIG. 13 is a sectional view showing a fifth embodiment of the filter device.

FIG. 14 is a perspective view showing a sixth embodiment of the filter device.

FIG. 15 is a sectional view taken along the line AA of FIG. 14;

FIG. 16 is a sectional view showing a seventh embodiment of the filter device.

FIG. 17 is an overall configuration diagram showing an air cleaning system using a conventional grease filter device.

FIG. 18 is a sectional view of the grease filter device shown in FIG.

[Explanation of symbols]

30 ... air purification system, 33 ... suction port, 34
... outlet, 35 ... fan, 36 ... duct,
38: first water supply system, 39: second water supply system,
40: drainage system, 41: solenoid valve (opening / closing means), 4
2 ... Control device (control means) 45 ... Filter box
46: plate portion, 55: partition plate, 55b: lower edge of the partition plate, 61: separating member, 60: vent hole,
70: overflow pipe, 72: inlet, 77
... Float valve, 79 ... Upper limit water level sensor (upper limit water level detecting means), 80 ... Lower limit water level sensor (lower limit water level detecting means), 105 ... Alarm buzzer (alarm generating means), 106
... Timer (time setting means), F ... Filter device,
L: separation liquid, W: water supply and drainage device.

Claims (4)

(57) [Scope of request for utility model registration] 1. A method for separating dispersed particles contained in air into liquids.
(L) and a water supply / drainage device (W) that supplies the separation liquid (L) to the filter device (F) and discharges the separation liquid (L) that has captured the dispersed particles. Air filter system (30), wherein the filter device (F) has an inlet (33) for sucking air mixed with dispersed particles, and an outlet (34) for discharging air after cleaning. A filter box (45) formed, a dish (46) provided at the bottom of the filter box (45) and containing a separation liquid (L), the suction port (33) and the discharge port (34). And a predetermined amount of the lower edge (55b) is applied to the separated liquid (L) in the plate (46).
(m) and a partition plate (55) provided by immersion only, wherein the water supply / drainage device (w) communicates with a space facing the discharge port (34) and the plate portion (4).
6) The inlet (72) through which the separated liquid (L) flows into the partition plate.
Drainage system located higher than the lower edge (55b) of (55)
(40) and the separated liquid (L) in the pan (46) before the drainage system (40).
A predetermined flow rate is set to overflow the inlet (72).
A first water supply system (38) for supplying the separated liquid (L) into the dish portion (46), and a water level in the dish portion (46) is set at the inlet of the drainage system (40).
A second water supply system (39) for supplying the separated liquid (L) into the dish (46) only when the water level reaches a second water level lower than the first water level determined by the height of the (72). And an air purification system. 2. The water supply / drainage device (W) further provided in the first water supply system (38).
Opening / closing means (41) that can be opened and closed freely; an upper limit water level detecting means (79) for detecting an upper limit water level higher than the first water level; and an upper limit water level detected by the upper limit water level detecting means (79). The first water supply system (38) is operated by closing the opening / closing means (41).
Control means (42) for closing the upper limit, and alarm generating means (1
05) The air purification system according to claim 1, comprising: 3. The water supply / drainage device (W) is further higher than a height of the lower edge (55b) of the partition plate (55).
And a lower limit water level detecting means (80) for detecting a lower limit water level lower than the second water level, and an alarm generating means (1) for issuing an alarm when detecting the lower limit water level.
The air purification system according to claim 1 or 2, further comprising: 4. The water supply / drainage device (W) is further provided in the first water supply system (38).
Opening and closing means (41) capable of opening and closing the first water supply system (3) by opening and closing the opening and closing means (41).
8) control means (42) for opening and closing, and the opening and closing means (41) to open the first water supply system (38)
, And a time setting means (106) for setting a stop time for closing the first water supply system (38) by closing the opening / closing means (41) .The control means (42) When the start time comes, the opening / closing means (41) is opened to supply the separated liquid (L) into the dish portion (46) via the first water supply system (38), and at the stop time. air cleaning system according to claim 1, characterized in that it is controlled to stop the supply of the separation liquid (L) of said closing means (41) by closing operation when it becomes.