JP2002186879A - Electrostatic dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrostatic dust collector capable of being used for many purposes, for example, for the purpose of being incorporated in an apparatus such as an air conditioner or the like other than the cleaning of air of a factory and having a simple structure. SOLUTION: In the electrostatic dust collector 1 for removing floating matter in air such as dust or the like, an air flow passage 2 permitting air to pass is formed and adsorbing means 4, etc., each having a rotary plate and a fixed plate, both of which are rubbed with each other by relative movement to generate static electricity themselves, are provided in the air flow passage 2 and a dust collection part 5 for collecting the floating matter adsorbed by the adsorbing means 4, etc., and scraped off from the adsorbing means is formed to the lower part of the air flow passage 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector for purifying air by removing suspended matters such as dusts in the air, and more particularly, to a static electricity collecting apparatus which uses static electricity to adsorb suspended matters. It relates to an electrostatic precipitator.

[0002]

2. Description of the Related Art As a dust collector, there is a dust collector which charges static electricity by corona discharge to adsorb dust. However, in this dust collector, a high voltage must be applied in order to perform corona discharge, and it is used in a large facility such as a factory, and the usable range is narrow.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a dust collector which can be used not only in factories and the like but also in homes and offices, and can be used by being incorporated in, for example, an air conditioner. Providing is the main issue.

[0004] A means for this purpose is a dust collecting device for removing suspended matter in the air such as dust, which forms an air flow passage through which the above-mentioned air passes, and performs mutual friction in the air flow passage by relative movement. An electrostatic precipitator provided with an adsorbing means for generating static electricity on its own, and a dust collecting portion formed at a lower portion of the airflow passage for collecting floating substances adsorbed and scraped off by the adsorbing means. .

[0005] That is, in the air flow passage, the adsorbing means frictions with each other to generate static electricity on itself, so that suspended matter in the air entering the air flow passage is adsorbed by the suction means, and the suspended matter is removed. The clean air is discharged from the airflow passage.

When a certain amount of suspended matter accumulates on the adsorbing means, the adsorbing means itself mutually rubbing,
The adsorbed suspended matter is scraped off. The scraped-off suspended matter collects in a dust collecting portion formed at a lower portion of the airflow passage according to gravity.

As described above, even if a high voltage is not applied, static electricity can be generated by an appropriate motion such as rotation using a motor as a driving source, and a floating substance can be adsorbed.

[0008] In addition, sparks may be generated due to static electricity, and these sparks can be used to destroy bacteria and odor components in the surrounding air. Therefore, bacteria and deodorization can be performed.

In order to easily generate static electricity, a material which is most likely to generate static electricity, for example, ebonite and fur, may be used for the adsorption means. An appropriate dehumidifier may be built in the airflow passage, or may be provided at a stage preceding the airflow passage.

In order to enhance the dust collecting effect, it is preferable that the suction means is formed in a plurality of stages along the direction of air flow. Suspended matter can be removed step by step, and reliable dust collection can be expected.

Specifically, the suction means comprises a rotating frictional body and a rubbed body rubbed against the frictional body,
The friction body may be formed by attaching a friction material to a plate surface of a plate-like rotating body. The friction body may be driven to rotate by, for example, a motor so that the friction material rubs against the body to be rubbed, and has a simple structure and can be formed in a large size or a small size. In addition, if the friction bodies and the friction bodies are alternately arranged, a plurality of suction means can be easily formed.

Further, it is preferable that the dust collecting section is provided with a discharging means for discharging dust dropped from the suction means. As the discharging means, for example, a screw which is rotated by a motor is built in and automatically discharged, or a discharging plate is constituted by a working plate corresponding to the internal form of the dust collecting section, and the working plate is slid manually as appropriate. Then, the collected suspended matter may be extruded. This is because the discharge of suspended matter becomes easy.

The dust collecting section may be provided with an appropriate sterilizing device such as a germicidal lamp in order to sterilize the collected suspended matter and maintain hygiene.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an electrostatic precipitator (hereinafter, referred to as an apparatus). This apparatus 1 is an apparatus that passes air containing suspended matter such as dust and removes the suspended matter using static electricity. It is.

That is, as shown in the sectional views of FIGS. 2 and 3, the air flow passage 2 for passing the air is formed by surrounding the housing 3 and the air flow passage 2 is provided with suction for suction. Means 4 are provided, and a dust collecting portion 5 for collecting suspended matter removed from the air is formed below the air flow passage 2.

The housing 3 is formed by combining an upper member 6 and a lower member 7 made of a non-conductive material, and is formed in a substantially cylindrical shape. An inlet 8 through which air enters is formed at one end face of the upper member 6, and an outlet 9 through which purified air exits is formed at the other end face. In addition, the dust collecting portion 5 having a U-shaped cross section is formed along the length direction at the lower end of the lower member 7, and a discharge port 10 is formed at the end corresponding to the outlet 9 in a downward direction. Has formed.

The adsorbing means 4 adsorbs and collects suspended matter before the air entering from the inlet 8 exits the outlet 9 and collects the suspended matter to some extent downward, that is, the dust collecting section 5. The friction member 11 is made up of a disk-shaped friction member 11 and a disk-shaped friction member 12 rubbed by the friction member 11 in a direction from the inlet 8 to the outlet 9 (passage of airflow). Along the direction). By arranging in multiple stages, the removal of suspended matter is performed gradually.

The friction member 11 is fixed to a rotating shaft 13 provided between the upper member 6 and the lower member 7, and is connected to a rotating member 11a made of a non-conductive material and a plate surface of the rotating member 11a. And the fixed friction material 11b.

The rubbed body 12 includes an upper member 6 and a lower member 7.
In addition, they are formed in partitions at regular intervals so as to be integrated when combined, and are made of a material such as ebonite that is easily charged with static electricity. In the center, a hole 1 through which the rotary shaft 13 passes and which allows air flow.
2a are formed, and ventilation holes 12b.

The above-mentioned friction bodies 11 are disposed on a rotating shaft 13 so as to sandwich the friction body 12, and the rotation bodies 11 of the friction bodies 11
The friction material 11b is fixed to the plate surface on the side of the body to be rubbed 12a, and a plurality of ventilation holes 11c. That is, the friction object 12
Friction members 11b are provided on both left and right surfaces, and the friction members 11 located at both ends are provided with friction materials 11b on one surface.
Is provided. The friction material 11b is formed of a material that is easily charged by static electricity, such as leather or fur, and is formed to draw a spiral curve radially from the center, as shown in FIG.

The rotating shaft 13 is rotated in one direction via a pulley 15 and a belt 16 by a motor 14 fixed outside the housing 3. The rotation may be performed so as to generate static electricity, and is appropriately set, for example, to 10 to 30 rotations per minute in relation to the force with which the friction material 11b of the friction body 11 presses the friction body 12.

The dust collecting section 5 has a built-in rotatable screw 17 as discharging means for discharging the suspended matter scraped off. This screw 17
A motor 18 provided outside the housing 3, a pulley 19,
It rotates in one direction via the belt 20. The operation may be performed at all times, intermittently, or appropriately only when necessary.

An appropriate sterilizing device 21 including a sterilizing lamp, a heating device, and the like may be provided so as to surround the dust collecting portion 5 as shown by phantom lines in FIGS.

The electrostatic precipitator 1 thus configured is used by being interposed in the passage of the air to be treated, for example, being incorporated in an exhaust duct. If necessary, a device such as a fan or a blower for sending the air to be processed may be incorporated in the air flow passage 2, attached to the inlet 8, or attached to the outlet 9.

Incidentally, the material and number of the adsorbing means 4 are appropriately set according to the purpose of use and the place of use. In the above example,
Although the air is caused to flow horizontally, for example, the suction means 4 may be arranged vertically in a stacked state so that the air flows vertically from the bottom to the top.

Further, depending on the purpose of use, the suction means may be configured by mounting only one instead of a plurality of suction means, or may be configured by combining filters.

In use, it is only necessary to drive the motor 14 to rotate the rotating shaft 13. Since the friction member 11 rubs the friction member 12 by the rotation of the rotation shaft 13, both of them are charged with static electricity. Then, the suspended matter in the air that has entered the airflow passage 2 is adsorbed to the friction material 11 b of the friction body 11 or the friction body 12. The air to which the suspended matter is adsorbed
, 12b... And the rubbed body 1
Then, it moves to the outlet 9 side through the second hole 12a, moves to the outlet 9 side while repeatedly removing suspended matter, and exits from the outlet 9.

On the other hand, when the amount of floating substances adsorbed on the adsorbing means 4 reaches a certain level, the rotating body 11, which has been rotating to generate static electricity, generates static electricity and simultaneously scrapes off attached floating substances. It also acts. For this reason, the suspended matter falls and accumulates on the dust collecting part 5 provided in the lower part of the airflow passage 5.

In the dust collecting section 5, the screw 17 rotates, and the suspended matter that has fallen is sequentially discharged from the discharge port 10.

The high voltage spark generated by static electricity is
It destroys bacteria and odor components around it.

Thus, the air containing the suspended matter is
It is divided into suspended matter adsorbed by static electricity and clean air from which it is removed.

Therefore, the structure is simple, and it can be freely formed into a large size or a small size. In addition, since it is driven by the motor 16, the manufacturing cost and the running cost can be reduced.

Therefore, it can be used not only for purifying air in factories and indoors, but also built in, for example, an air conditioner, and can be used for multiple purposes.

Moreover, in this apparatus, the floating substances adsorbed by the adsorbing means 4 are scraped off by the adsorbing means 4 when they accumulate to some extent, so that the adsorbing means 4 can further adsorb the floating substances. Therefore, no maintenance work such as cleaning the suction means 4 is required at all, and management is easy.

[0035]

As described above, according to the present invention, static electricity can be generated with a simple configuration, and therefore, it can be formed into a large size and a small size. Moreover, there is no need to apply high voltage,
Since a driving source such as a motor may be used, manufacturing costs and running costs can be reduced.

Therefore, it can be used for purifying air in a factory or a room, and can be built in an air conditioner, for example.

Moreover, in the electrostatic precipitator of the present invention, the floating substance adsorbed by the adsorbing means is scraped off by the adsorbing means when it accumulates to some extent, so that the adsorbing means can further adsorb the floating substance. Therefore, no maintenance work such as cleaning the suction means is required at all, and management is easy.

The high voltage spark generated by static electricity is
It can be used to destroy germs and odor components around it. Therefore, the effects of sterilization and deodorization can also be achieved.

[Brief description of the drawings]

FIG. 1 is a sectional view of an electrostatic precipitator.

FIG. 2 is a cross-sectional view showing a friction body of the suction means.

FIG. 3 is a cross-sectional view showing a friction member of the suction means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electrostatic dust collection device 2 ... Air flow path 4 ... Adsorption means 5 ... Dust collection part 8 ... Inlet 9 ... Outlet 10 ... Discharge port 11 ... Friction body 11a ... Rotating body 11b ... Friction material 12 ... Friction body 13 ... Rotation Shaft 17: Screw (discharge means) 21: Sterilizer

Claims (4)

[Claims] 1. A dust collecting apparatus for removing suspended matter in air such as dust, wherein an air flow passage for passing said air is formed,
In the airflow passage, an adsorbing means for generating friction by mutual friction by relative movement and generating itself is provided, and a dust collecting portion for collecting floating substances adsorbed and scraped off by the adsorbing means is provided at a lower portion of the airflow passage. The formed electrostatic precipitator. 2. The electrostatic precipitator according to claim 1, wherein said suction means is formed in a plurality of stages along an air flow passage direction. 3. The method according to claim 1, wherein the suction means comprises:
The electrostatic precipitator according to claim 1 or 2, wherein the frictional body is formed by attaching a frictional material to a plate surface of a plate-like rotating body. apparatus. 4. The electrostatic precipitator according to claim 1, further comprising a discharging means for discharging the dust dropped from the suction means in the dust collecting part.