JPH08257336A - Air cleaner - Google Patents

Abstract

PURPOSE: To improve the cleaning efficiency, make a cleaner smaller and reduce the number of parts. CONSTITUTION: Outside air sucked from a suction duct 10 of an air cleaner 1 is cleaned when mist-like water jetted out of a spray section 17 is passed through therein. When the spray section 17 is rotated, air flow is generated around the spray section 17. As the air flow is transmitted from the upper section downwardly by a rectifying rib 28, air is sucked in from a suction opening 13. The inside of a sponge 18 is pressurized negatively by the rotation of the spray section 17 to suck the water through a fixed nozzle 27. The water is jetted in the mist shape by the centrifugal force of the rotating sponge 18, and dust and odorous components in the air passed through the mist-like water are almost all absorbed into the water and cleaned therein. Since the suction of outside air and supply and spray of water are carried out by the spray section 17 and the rectifying rib 28, the whole of a device is miniaturized, and the number of parts can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaning device for cleaning air with water. More specifically, the present invention relates to an air purifying device that can reduce the cost of the device at a low cost and efficiently purify air by rectifying the air flow generated by the rotation of the rotating body in a predetermined direction by the rectifying means. .

[0002]

2. Description of the Related Art A conventional household air cleaning device uses activated carbon or fibers such as polypropylene as a filter, and forcibly sucked air is passed through this filter to remove dust or odor contained in the air. There is a filter type cleaning device that removes such things. In addition to this, there is also an ion-type cleaning device in which dust and odor components in the air are charged to, for example, the + side, which is attracted to the-side electrode and collected by a paper towel.

[0003]

In the filter type cleaning device, the filter is clogged relatively quickly, so that the filter must be replaced frequently, which is not only troublesome but also costly. . In addition, since the filter is filled with activated carbon and fibers with almost no gap, the pressure loss becomes large, and a fan having a large capacity for sucking air must be used, which is also expensive.

In the ion type cleaning device, when the velocity of the air flow is high, dust and the like charged on the + side are not attracted to the − side and are discharged to the outside together with the air.
The air cannot be forcibly sucked and flowed. Therefore, there is a problem that only the air very close to the cleaning device is cleaned, but the air outside it cannot be cleaned.

In view of this, the present invention solves the above-mentioned problems, and proposes an air purifying apparatus that is inexpensive and compact, and that is capable of purifying a wide range of air. .

[0006]

In order to solve the above-mentioned problems, in the present invention, in an air purifying apparatus for purifying air sucked from the outside with water, water disposed in the middle of passing air is sprayed. A porous rotator, a nozzle for supplying water to the center of the rotator, and a rectifying means provided around the rotator and formed in a spiral shape for rectifying an air flow generated by the rotation of the rotator in a predetermined direction. It is characterized by having.

[0007]

When the rotating body rotates, an airflow is generated around it. This air flow is sent from the upper side to the lower side along the direction of the rectifying means, so that the air is sucked from the intake port. Further, the inside of the rotating rotating body becomes negative pressure, and water is automatically sucked up from the tank through the nozzle. The sucked water is subdivided into fine particles by the rotating body, and is ejected in the form of mist by the centrifugal force due to the rotation. Since this mist-like water is spouted while rotating, the part where the air passes is covered with water, and the dust and odorous components contained in the air that passes through this is mostly water. It is absorbed and cleaned.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the air purifying device according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the structure of an air cleaning device 1 according to the present invention. In this air purifying apparatus 1, an L-shaped intake duct 10 is arranged in a cylindrical exhaust duct 11, and is placed on a horizontal plate 32 having a hole. An intake port 13 is provided at the tip of the horizontal portion 12 of the intake duct 10, and the intake port 13 is open to the outside from the cylinder wall of the exhaust duct 11. Also,
The vertical portion 14 of the intake duct 10 is arranged substantially at the center of the exhaust duct 11, as shown in FIG. The cross-sectional area of the air passage portion 15 of the exhaust duct 11 is larger than the cross-sectional area of the air passage portion 16 of the vertical portion 14. This is to prevent water for cleaning the air from being discharged to the outside as described later.

In FIG. 1, the vertical portion 1 of the intake duct 10
4 is provided with a rotating body for spraying water for cleaning the air, and a spray section 17 for spraying water in a mist state in this example. As shown in FIG. 3, this spraying section 17 has a porous rotating body, in this example, a thick cylindrical sponge 18, which is housed in a frame section 19. In the frame portion 19, a disc-shaped upper plate 20 and a lower plate 21 are arranged above and below the sponge 18, and as shown in FIG. 2, elongated vertical plates 22 are equally spaced between the upper plate 20 and the lower plate 21. Book is provided. The upper plate 20 shown in FIG. 3 is provided with a joint 23, to which the rotary shaft 25 of the motor 24 is connected. The motor 24 is attached to a support plate 26 having a hole that is bridged in the intake duct 10.

A pipe-shaped fixed nozzle 27 connected to a tank 38 (FIG. 1), which will be described later, is inserted into the space inside the sponge 18, and an opening 27a thereof is arranged at a position near the lower portion of the sponge 18. There is. The fixed nozzle 27 is provided with a receiving plate 30 with a slight gap from the lower plate 21 of the frame part 19, and a ring-shaped restricting part 31 for restricting the position of the frame part 19 is provided upright on the outer peripheral side thereof. There is.

Further, on the inner surface of the vertical portion 14 of the intake duct 10, as shown in FIG. 4, a plurality of rectifying means for rectifying the flow of air from the top to the bottom, in this example, rectifying ribs 28 are provided all around. It is projected over. The straightening ribs 28 are spirally formed in parallel from the upper left to the lower right.

Now, when the motor 24 operates, the spray section 17 rotates clockwise as shown in FIG. 2, whereby an air flow is generated around the spray section 17. This airflow is sent from the upper side to the lower side along the direction of the flow regulating ribs 28,
Air is sucked in through the suction port 13 shown in FIG. Also,
Due to the rotation of the spray unit 17, the inside of the sponge 18 becomes a negative pressure, and water is automatically sucked up from the tank 38 through the fixed nozzle 27. The water sucked up from the fixed nozzle 27 is subdivided into fine particles by the rotating sponge 18,
It is ejected in the form of mist to the outside by centrifugal force.

This mist-like water is rotated to rotate the intake duct 10
The air will be jetted out to the inside air passage portion 16 (FIG. 2), and most of the dust and odor components contained in the air passing therethrough will be absorbed by the water for cleaning. Also,
Since water is supplied to the sponge 18 and dispersed therein, the amount of water jetted is uniform above and below the sponge 18, and dust and odor can be efficiently collected. After that, the purified air is supplied to the steam separation unit 36 and the exhaust duct 1 described later.
1 through the air passage portion 15 (FIG. 2) and is discharged to the outside from the discharge port 34 on the upper side of the exhaust duct 11.

As described above, the suction of air and the supply of water are performed by the spraying section 17 and the rectifying ribs 28, so that the apparatus can be downsized without the need for a fan or pump. Further, since a single drive means, that is, the motor 24 can perform air suction, water supply and spraying, it is possible to reduce the number of parts and the cost.

On the other hand, as shown in FIG. 1, below the intake duct 10 and the spraying section 17, the above-mentioned steam / water separating section 36 and the water pool section 37 are provided, and a tank 38 is attached / detached below that. Arranged freely. The air / water separator 36 has an appropriate width for separating the purified air and water.
The air separated by the steam separator 36 flows toward the exhaust duct 11 side by the suction force generated by the above-described rectifying action. In addition, the separated water flows into a reservoir 37 provided at the bottom of the steam separator 36. The water accumulated in the reservoir 37 is collected in the tank 38 as described below.

The tank 38 collects the water in the collecting part 37, a filter 43 for cleaning the dirty water in the collecting part 42, and a supply for supplying the cleaned water to the fixed nozzle 27. And part 44. The tank 38, the reservoir 37, and the fixed nozzle 2 are provided on the upper side of the supply unit 44.
A connecting portion 45 for connecting with 7 is provided.

As shown in FIG. 5, two upper and lower guide portions 46 and 47 are attached to the connecting portion 45 on the surface facing the reservoir portion 37 by, for example, welding. Guide part 4
6, 47 are provided with a flange 48 on the outer side, and a relatively large chamfer is provided on the inner peripheral side thereof. by this,
The other side can be easily inserted. In addition, an insertion portion 50 for inserting the mating side is provided on the inner peripheral side of the tubular portion 49 of the guide portions 46 and 47. Into the insertion portion 50, the insertion portions 53 of the L-shaped joint portions 51 and 52 are inserted, and the tip end side is fitted with the sealing means, in this example, the O-ring 54.
Thereby, the guide portions 46 and 47 and the joint portions 51 and 52
Water can be prevented from leaking between the pipes 56 and 57. A check valve 55 made of rubber is provided on the inner end surfaces of the insertion portions 53 of the joint portions 51, 52.

On the other hand, a straight discharge pipe 56 for discharging the water in the reservoir 37 is provided on the surface of the reservoir 37 facing the connecting portion 45, and the water in the tank 38 is supplied to the sprayer 17 side. And an L-shaped supply pipe 57 for protruding. The discharge pipe 56 is attached near the bottom of the reservoir 37. Then, when the tank 38 is arranged at a predetermined position, the pipes 56 and 57 pass through the insertion portions 53 from the guide portions 46 and 47, respectively, and the joint portions 51 and 52.
Inserted inside. At this time, the check valve 55 is pushed open by the tips of the pipes 56, 57. With this, the reservoir 37
It becomes possible to collect the water in the tank 38,
The water in 8 can be supplied to the spray unit 17. On the contrary, when the tank 38 is removed, the check valve 55 is elastically closed. Then, when the tank 38 is tilted and the water inside flows into the joint portions 51, 52 side, the check valve 55 is pressed in the closing direction by the pressure of this water, so that it does not leak outside.

An insertion pipe 58 is provided below the joint portion 51 to which the discharge pipe 56 is connected, and a tube 59 inserted therein is connected to the recovery portion 42 (FIG. 1) of the tank 38. The tube 59 is fastened and fixed to the insertion pipe 58 with a fastening band 60. In addition, the supply pipe 57
An insertion pipe 58 is also provided below the joint portion 52 connected to, and the tube 61 inserted therein is connected to the tank 38.
Is connected to the supply unit 44. This tube 61 is also fixed to the insertion pipe 58 by a tightening band 60.
The supply pipe 57 is connected to the fixed nozzle 2 via the joint 62.
Connected to 7.

A stop valve 63 is attached to the opening of the discharge pipe 56 on the side of the reservoir 37 so as to prevent water in the reservoir 37 from leaking to the outside when the tank 38 is removed. ing. As shown in FIG. 6, the stop valve 63 is provided with a packing 65 larger than the diameter of the discharge pipe 56 at the lower end of an L-shaped rotary lever 64. A pin 66 is provided on the upper side of the rotating lever 64 to form the steam separation unit 3.
It is rotatably attached to the supporting portion 67 of the No. 6 unit. In addition, a vertically elongated hole 68 is provided at the upper end of the rotating lever 64, and a rod 70 of a solenoid 69 attached to the air / water separator 36 is connected to this by a pin 71. The solenoid 69 is a self-holding type, and when energized once, the rod 70 is held on the protruding side or the retracting side.

When the tank 38 is attached, this is detected by the micro switch 72, the solenoid 69 is energized, and the rod 70 is held in a retracted state. This brings the stop valve 63 into the open state. When the tank 38 is removed, this is detected by the micro switch 72, the solenoid 69 is energized, and the rod 70 is held in the pushed state. As a result, the stop valve 63 is closed.

Therefore, at the time of use, the mist-like water ejected from the spray section 17 is separated from the air by the steam separation section 36,
This is collected in the collecting part 37 and collected from the discharge pipe 56 through the joint part 51 and the tube 59 to the collecting part 42. Then, for example, when the tank 38 is removed to replace the water in the tank 38, the water in the reservoir 37 will not leak to the outside. Further, since the tank 38 is sealed, when the spraying section 17 is rotated, water is sucked from the tube 61 and the inside of the tank 38 becomes negative pressure. As a result, the water in the reservoir 37 is automatically sucked into the tank 38.

Thus, the air cleaning device 1 shown in FIG.
Is to remove dirt and odor components in the air by passing dirty air through mist-like water and remove it.Because water is evenly dispersed in the air passage part, The air resistance becomes smaller than that of the filter type air cleaning device described above, and the efficiency of collecting dust and the like is improved, and the cleaning efficiency is improved. Further, since the ambient air is sucked in by the fan and is cleaned and discharged, a wider range of air can be cleaned than the ion type air cleaning device.

Further, since the outside air is sucked in and the water is supplied by the spraying section 17 and the rectifying ribs 28, a pump or a fan is not required, the apparatus can be downsized as a whole, and the installation space can be reduced. Further, since a single drive means, that is, the motor 24 can perform suction of external air, supply of water, and spraying, it is possible to reduce the number of parts and cost.

Since the intake duct 10 is housed in the exhaust duct 11, the size can be further reduced. Further, since the cross-sectional area of the air passage portion 15 of the exhaust duct 11 is larger than the cross-sectional area of the air passage portion 16 of the intake duct 10, the flow velocity of the air in the exhaust duct 11 becomes slow, and it becomes impossible to raise the water. This can prevent water from being discharged to the outside through the exhaust duct 11.

Further, since the tank 38 is sealed,
When the water in the supply unit 44 is sucked up as the spraying unit 17 rotates, the tank 38 has a negative pressure, and the water in the reservoir 37 connected to the tank 38 is automatically recovered by the recovery unit 42. Therefore, the structure of the tank 38 and its surroundings can be simplified. Further, the tank 38 can be easily connected simply by inserting the pipes 56 and 57 into the connecting portion 45 of the tank 38. When the tank 38 is removed, the water in the reservoir 37 is stopped by the stop valve 63. Can be prevented from leaking to the outside.

[0028]

As described above, according to the present invention, in an air cleaning apparatus for cleaning air sucked from the outside with water, a porous rotating body for spraying water, which is disposed in the middle of passing air, and a rotating member. A nozzle that supplies water to the center of the body,
And a rectifying unit that is provided around the rotator and that is formed in a spiral shape to rectify the airflow generated by the rotation of the rotator in a predetermined direction.

Therefore, according to the present invention, the dust and odor components of the air are absorbed by the mist-like water, so that the cleaning efficiency is improved. Further, since the suction of external air and the supply of water are performed by the rotating body and the spiral rectifying means, a pump and a fan are not required, and the apparatus can be downsized and the installation space can be saved. Further, since the air can be sucked and the water can be supplied and sprayed by a single driving means, there is an effect that the number of parts can be reduced and the cost can be reduced.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a configuration diagram of a spray unit 17.

FIG. 4 is a perspective view showing a shape of a flow regulating rib 28.

5 is a detailed view showing a portion C of FIG. 1. FIG.

6 is a view on arrow D in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air purifier 10 Air intake duct 11 Exhaust duct 14 Vertical part 15 Air passage part of exhaust duct 11 16 Air passage part of air intake duct 17 Spraying part 18 Sponge 24 Motor 27 Fixed nozzle 28 Straightening rib 37 Reservoir part 38 Tank 42 Recovery part 43 filters

Claims (2)

[Claims] 1. An air purifying apparatus for purifying air sucked from the outside with water, wherein a porous rotating body for spraying water disposed in the middle of passage of the air, and water for the central portion of the rotating body. An air purifying apparatus comprising: a supply nozzle; and a spirally formed rectifying unit that is provided around the rotating body and rectifies an air flow generated by the rotation of the rotating body in a predetermined direction. 2. The air cleaning apparatus according to claim 1, wherein the rectifying means rectifies the airflow from top to bottom.