JPH0889843A - Air cleaner - Google Patents

Abstract

PURPOSE: To reduce the sound generated when air is supplied to an electrostatic air cleaning part by providing an air cleaner with the electrostatic air cleaning part equipped with first and second electrode members and the power supply device for supplying high voltage across both electrode members and the gas suction part containing a fan and communicating with the gas outflow port of the air cleaning part. CONSTITUTION: When an electric motor 20 is driven, a filter member 30 is rotated and, at the same time, the fan motor 61 of a gas suction part is rotated and contaminated air is sucked from an air inflow port 13 by a fan 62. A contaminant having a large particle size in the sucked air is allowed to strike against the inner wall of a lower part 11 by the centrifugal force of the rotary filter member 30 to be removed. The gas flowing in an electrostatic air purifying part M2 through an air exhaust port 16 is dispersed by a gas dispersing plate 41a and a DC high voltage is applied by using a screw rod 45 as a negative electrode and an electrode plate 47 as a positive electrode to ionize fine particle- containing gas and charged fine particle components are attracted to the electrode plate 47 to be removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner, and more particularly, to an air cleaner suitable for cleaning air containing smoke-like particles.

[0002]

2. Description of the Related Art In recent years, the influence of so-called secondhand smoke on the surroundings of cigarette smoke has become a problem, and indoor cleaning has been required. In particular, in a game hall such as a pachinko hall, it is a big problem to treat a large amount of cigarette smoke. In order to deal with this problem, conventionally, a cleaning section using a centrifugal separation type filter,
An air purifier that combines an electrostatic cleaning unit is used, and relatively large particles are removed at the part where a filter is used, and smoke-like particles are removed at the electrostatic cleaning unit that ionizes gas. It was

[0003]

However, in the above air purifier, there is a problem that the noise when driving the cleaning section using a centrifugal separation type filter is very loud and the noise environment of the amusement hall is deteriorated. there were. In order to avoid such a problem, it is possible to use only the electrostatic cleaning unit, but since air is not supplied to the inside only by the electrostatic cleaning unit, air is blown to the gas inlet of the electrostatic cleaning unit by a blower. It must be sent, but there is a problem that the air blower makes a loud noise. The present invention is intended to solve the above problems, and an object of the present invention is to provide an air purifier that reduces noise when supplying air to an electrostatic cleaning unit and does not bring a noise environment to the surroundings. .

[0004]

In order to achieve the above object, the structural feature of the invention according to claim 1 is that a gas inlet is provided on one side surface of a rectangular parallelepiped container and a gas outlet is provided on the other side surface. A main body, a plurality of first electrode members arranged in parallel to each other in the main body and supported in an electrically conductive state on the inner wall surface of the main body, and a plurality of second electrode members arranged corresponding to the first electrode members. Electrostatic comprising an electrode member, an insulating electrode supporting member for supporting the second electrode member on the inner wall surface of the main body in an insulating state, and a power supply device for supplying a high voltage between the first electrode member and the second electrode member. A gas suction unit having a fan type air cleaning unit, a fan connected to the gas outlet of the electrostatic air cleaning unit for sucking gas, and a drive unit for driving the fan at a low speed is provided.

Further, the structural feature of the invention according to claim 2 is that the gas inlet is provided on one side surface of the rectangular parallelepiped container, and the gas outlet is provided on a side surface opposite to the one side surface. Both ends are arranged parallel to each other, facing both sides,
A plurality of first electrode members supported in an electrically conductive state on the inner wall surface of the main body, and an insulative support member arranged substantially parallel to the both side surfaces at positions near both side surfaces of the main body and attached to the inner wall surface of the main body; An electrode supporting member supported in an insulated state;
Electrostatic device including a plurality of second electrode members arranged between the electrode members and having both ends fixed to the electrode supporting member, and a power supply device for supplying a high voltage between the first electrode member and the second electrode member. The gas suction unit is provided with a formula air cleaning unit, a fan that is connected to the gas outlet of the electrostatic air cleaning unit and sucks gas, and a drive device that drives the fan at low speed.

Further, the constitutional feature of the invention according to claim 3 is that in the air cleaner according to claim 1 or 2, it is divided into an upper part and a lower part by a partition plate having a gas passage hole in the center. A gas discharge port is provided on one side surface of the upper part and a gas supply port is provided on one side surface of the lower part, and the gas flow hole of the partition plate in the lower part is covered and disposed, and the bottom wall is sealed. A cylindrical container shape and a peripheral wall formed of a filter material, and a rotary drive device for rotating the filter member about an axis, and the gas discharge port is a gas inlet port of the electrostatic air cleaning section. The reason is that the connected filter device is provided.

[0007]

As described above, according to the invention of claim 1, the gas containing smoke-like fine particles sucked by the gas suction portion is sucked into the main body of the electrostatic air cleaning portion. Then, a high voltage is applied by the power supply device to ionize between the first electrode member and the second electrode member provided, and the charged fine particles are attracted to one electrode member. Then, the gas from which the fine particles have been removed and which has been cleaned is sucked by the gas suction portion and discharged to the outside from the gas outlet. At this time, the gas suction unit does not blow the gas into the main body but rotates the fan at a low speed to suck the gas, so that the suction noise can be made very small. As a result, a large amount of noise is not generated in the surroundings, which is suitable for removing smoke in a room where a large number of people gather, such as a game hall such as a pachinko hall.

Further, by constructing the invention according to claim 2 as described above, the removal of the fine particle component from the gas containing smoke-like fine particles can be performed in the same manner as the effect of the invention according to the first aspect. This is suitable for removing smoke in a room where a large number of people gather, such as a game hall such as a pachinko hall, without causing a great amount of noise.

Further, by configuring the invention according to claim 3 as described above, particles having a large particle size in the gas containing smoke-like particles, such as tar components in cigarette smoke, are filtered by the filter device. To be removed. Then, the gas from which the large particles have been removed flows into the electrostatic air cleaning section, and the smoke-like particles are also removed. Here, the filter device is not provided with an impeller for discharging gas, only has the filter member, and the load applied to the rotary drive device is very small, so that a large noise is not generated by the rotary operation. In addition, since the gas suction part provided on the gas outflow side of the electrostatic air purifier also produces a small amount of noise as described above, the particle size contained in the gas while reducing the operating noise of the air purifier as a whole. Large particles and smoke-like particles can be removed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view schematically showing an air cleaner provided in a game hall such as a pachinko hall according to the embodiment. is there. This air cleaner is provided with a centrifugal separation air cleaning section M1, an electrostatic air cleaning section M2 on the left side thereof, and a gas suction section M3 on the left side thereof. The centrifugal air cleaning section M1 is provided with a main body 10 made of stainless steel and an electric motor 20 attached to the upper surface thereof. The main body 10 is
As shown in FIG. 2, the lower part 11 and the upper part 15 are combined. The lower part 11 is a cylindrical container having an open top surface, and a cylindrical air inlet 12 is attached to the side surface thereof, and the bottom surface 13 thereof is provided with oil and the like separated from the air in one place. An inclined plate 13a for collecting is provided, and its lower end is connected to a drain device (not shown).

As shown in FIG. 2, the upper portion 15 has a box shape larger than the lower portion 11, is placed on the lower portion 11, and the bottom plate 15a is fixed to the upper end of the lower portion 11 by welding. There is. The upper portion 15 has an opening 15a1 at the center of the bottom plate 15a. The upper part 15 has an opening 1 at the center of the upper plate 15b.
5b1 is provided, and the electric motor 20 is provided on the upper plate 15b.
The annular support plate 20a is fixed by a bolt B1. The electric motor 20 has a ring-shaped support portion 22 attached to the tip of a rotating shaft 21 extending downward. Upper part 1
The left end side of 5 is a gas exhaust port 16 and is connected to a gas inflow port 41 of an electrostatic air cleaning unit M2 described later.

Inside the lower portion 11, there is provided a cylindrical basket-shaped filter member 30 having an open upper surface. The filter member 30 includes a bottom plate 31 made of stainless steel and a bottom plate 31.
Wire mesh cylinders 32a and 32b which are erected double around the circumference of
The flange portion 3 provided on the cylinders 32a and 32b toward the outside
3 and 3 are provided. A filter material 34 is filled between the tubes 32a and 32b. As the filter material, a porous material having oil resistance, heat resistance, etc., such as glass fiber, sponge, or ceramics is used.

The filter member 30 has a support portion 22.
It is directly connected to the electric motor 20 by bolting the flange portion 33 to. Here, as shown in FIG. 2, a seal plate 35, which is an annular thin plate, is sandwiched between the support portion 22 and the flange portion 33. The material of the seal plate 35 may be any material having heat resistance, oil resistance, chemical resistance, and the like. For example, resin such as polyester or rubber such as nitrile rubber is used. The outer periphery of the seal plate 35 reaches the inclined portion 15a2 at the tip of the bottom plate 15a, and blocks the lower side portion 11 and the upper side portion 15 from each other. Further, as shown in FIG. 2, a shield plate 36 is provided between the air inlet 13 and the filter member 30 by being attached to the bottom plate 15a. As a result, the dirty air flowing in from the air inlet 13 directly passes through the filter member 3
Since it does not hit 0, the dirt removing action by the rotation of the filter member 30 is effectively exerted, the filter member becomes hard to become dirty, and its life can be extended. However, the shielding plate 36 may be removed as necessary.

As shown in FIG. 1, the electrostatic air cleaner M2 is provided with a rectangular parallelepiped main body 40 made of stainless steel, and a high voltage power supply device 48 is provided on the front side surface of the main body 40. As shown in FIG. 2, the main body 40 is provided with a gas inlet 41 on the right side wall 40a, and the gas inlet 41 is connected to the exhaust port 16 of the centrifugal air cleaning section M1. A gas distribution plate 41a, which is a perforated plate such as a punching metal plate, is provided at a position near the left of the gas inflow port 41 so that the inflow gas is dispersed in the main body. Also,
A gas outlet 42 is provided on the left side wall 40b of the main body 40. The gas outlet 42 is provided with a perforated metal plate such as a punching metal plate or a wire mesh. And the main body 40 is
As shown in FIG. 2, the bottom plate 40c is slightly above the bottom surface.
The bottom plate 40c is provided with a drain device 40c1 for discharging moisture and oil separated from the gas supplied into the main body 40 to the outside.

Electrode support plates 43a and 43b are erected at positions near the gas dispersion plate 41a and the left side wall 40b in the main body. The electrode support plates 43a and 43b are metal plates having a large number of holes, such as a punching metal plate and a wire mesh plate, and the bottom wall 40c and the upper wall 4 in the main body 40.
Support members 44a, 44 provided on the inner surface near the four corners of 0d
supported by b. The support members 44a and 44b are made of an insulating material such as ceramics such as an insulator or a resin such as vinyl chloride or nylon SS, but it is particularly preferable to use ultra-high molecular weight polyethylene having excellent dielectric breakdown strength. -The electrode support plates 43a and 43b have a structure shown in FIGS.
As shown in FIG. 3, the threaded rods 45 forming the negative electrode are arranged in parallel in the vertical direction and the front-rear direction at regular intervals and are fixed by the nut. A metal plate may be used instead of the threaded rod.

Between the threaded rods 45, as shown in FIGS. 2 and 4, a plurality of electrode plates 47, which are + electrodes made of metal such as aluminum or stainless steel, are erected parallel to each other in the front-rear direction. The metal support members 46a, 46 provided on the inner side surfaces of the bottom wall 40c and the upper wall 40d in the main body 40.
It is conductively supported by b. And the threaded rod 45
The electrode plate 47 is connected to the high voltage power supply device 48 through a terminal (not shown). However, the polarities of the electrodes may be reversed.

As shown in FIGS. 1 and 2, a rectangular parallelepiped gas suction section M3 made of stainless steel is provided on the left side of the electrostatic air cleaning section M2. Gas suction part M
3 has a rectangular parallelepiped main body 60, the left side wall of which is a perforated metal plate such as a punching metal plate. A fan motor 61 to which a fan 62 having a large diameter is attached is provided on the left side wall, and the fan motor 61 rotates the fan 62 at a low speed.

Next, the operation of the embodiment configured as described above will be described. First, turning on a power switch (not shown) causes the electric motor 20 to start rotating, and the filter member 30 rotates accordingly. At the same time gas suction unit M3
The fan motor 61 starts rotating, and the fan 62 starts sucking gas. Then, the air contaminated with cigarette smoke or the like is sucked from the air inlet 13, and the sucked air has a large particle diameter such as water, tar, or oil in the dirt due to the centrifugal force of the rotation of the filter member 30. Dirt is tapped on the inner wall of the lower portion 11 to be removed, and the remaining dust such as tar is removed by the filter action of the filter member 30. Smoke-like air containing dirt with a large particle size and containing dirt with a small particle shape is sucked by the fan 62, passes through the upper portion 15, and is discharged from the upper portion 15 through the air outlet 16.

As a result, most of the dirt having a large particle size is removed outside the filter member 30, so that the dirt of the filter member 30 itself is alleviated and the filter member 30 can be used for a long time. Therefore, the labor of replacing the filter member 30 can be saved and the cost of the filter member 30 can be reduced. Further, the centrifugal air cleaning unit does not have an impeller for discharging gas, only rotates the filter member, and the load applied to the rotary drive device is very small.
No significant noise is generated during rotation. Also,
When the filter member rotates, the opening 15a1 of the bottom plate 15a
Since the gap between the filter member 30 and the filter member 30 is covered by the seal plate 35 arranged below the bottom plate 15a, the dirty air in the lower portion 11 flows into the upper portion 15 through the gap. Is reliably prevented.

Next, the gas sucked by the fan 62 and flowing into the electrostatic air cleaning section M2 through the air discharge port 16 is dispersed by the gas dispersion plate 41a and the main body 40
Pour into the inside evenly. Then, by the high voltage power supply device 48, the threaded rod 4 is inserted via the-electrode support plates 43a and 43b.
A high DC voltage is applied with 5 being the negative electrode and the electrode plate 47 being the positive electrode. The gas containing smoke-like fine particles that has flowed into the main body is ionized by a high voltage, and the charged fine particle components are adsorbed to the electrode plate 47, whereby the fine particles are removed. At this time, the groove provided on the surface of the threaded rod 45 promotes the ionization of the gas, and the removal of the fine particle component is efficiently performed.

In the operation of the air purifier described above, the gas suction section is configured to suck a gas by rotating a fan having a large diameter at a low speed, instead of blowing the gas into the main body. Therefore, the suction noise can be made very small as compared with the case where the gas is blown into the main body by various means. As a result, a large amount of noise is not generated in the surroundings, and it is suitable for use in removing smoke in a room where many people gather, such as in a game hall such as a pachinko hall.

Next, a modification of the above embodiment will be described with reference to the drawings. FIG. 5 is a perspective view schematically showing an air cleaner according to the modification. In this air purifier, the centrifugal separation air cleaning section M1 adopted in the above embodiment is eliminated, and the gas outlet 42 of the electrostatic air cleaning section M2 is eliminated.
Only the gas suction part M3 is provided on the side. That is, this air purifier is used when the gas contamination is mainly smoke-like fine particles. The electrostatic air cleaning section M2 and the gas suction section M3 have the same configurations as those in the above-mentioned embodiment.

In the modified example configured as described above,
By rotating a fan with a large diameter at a low speed, gas is supplied into the electrostatic air purifier, the fine particle components are removed as described above, and the gas is discharged to the outside of the main body by the fan. Also in this modified example, as in the above-described embodiment, the gas suction unit does not blow the gas into the main body, but rotates the fan having a large diameter at a low speed to suck the gas. Therefore, the suction noise can be made very small as compared with the case where the gas is blown into the main body by various means. As a result, a large amount of noise is not generated in the surroundings, and it is suitable for use in removing smoke in a room where many people gather, such as in a game hall such as a pachinko hall.

The shape, material, etc. of the electrostatic air purifiers according to the above-mentioned embodiments and modifications are not limited to those in the above-mentioned embodiments, but can be appropriately changed according to the intended use.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an air cleaner according to an embodiment of the present invention.

FIG. 2 is a vertical sectional front view schematically showing the air purifier.

FIG. 3 is a cross-sectional view showing a III-III direction in FIG.

FIG. 4 is a cross-sectional view showing a IV-IV direction in FIG.

FIG. 5 is a schematic perspective view of an air cleaner according to a modification.

[Explanation of symbols]

10 ... Main body, 11 ... Lower part, 13 ... Air inlet, 15 ...
Upper part, 15a ... Bottom plate, 15a1 ... Opening, 15a2 ... Inclined part, 15b ... Top plate, 15c ... Support plate, 16 ... Air discharge port, 20 ... Electric motor, 21 ... Rotating shaft, 22 ... Support part,
30 ... Filter member, 31 ... Bottom plate, 32a, 32b ...
Cylinder, 33 ... Flange part, 33a ... Inclined part, 34 ... Filter material, 35 ... Seal plate, 40 ... Main body, 41 ... Gas inflow port, 42 ... Gas outflow port, 43a, 43b ...- Electrode support plate, 44a, 44b ... Support members, 45 ... Threaded rods, 4
6a, 46b ... Metal support member, 47 ... Electrode plate, 48 ...
High-voltage power supply device, 60 ... Main body, 61 ... Fan motor, 6
2 ... Fan, M1 ... Centrifugal air cleaning section, M2 ... Electrostatic air cleaning section, M3 ... Gas suction section.

Claims (3)

[Claims] 1. A main body in which a gas inlet is provided on one side surface of the rectangular parallelepiped container and a gas outlet is provided on the other side surface thereof, and the main body is arranged in parallel with each other in the main body and is electrically conductive on the inner wall surface of the main body. A plurality of supported first electrode members, a plurality of second electrode members arranged corresponding to the first electrode members, and insulation for supporting the second electrode members on the inner wall surface of the main body in an insulating state. Electrostatic air cleaner provided with a conductive electrode supporting member and a power supply device for supplying a high voltage between the first electrode member and the second electrode member, and to the gas outlet of the electrostatic air cleaner. An air purifier comprising: a gas suction unit that is connected and that has a fan that sucks gas and a drive device that drives the fan at low speed. 2. A main body in which a gas inlet is provided on one side surface of a rectangular parallelepiped container and a gas outlet is provided on a side surface facing the same side surface, and both ends of the main body are parallel to each other in the direction of the both side surfaces. A plurality of first electrode members that are disposed and supported in an electrically conductive state on the inner wall surface of the main body, and are arranged substantially parallel to the both side surfaces of the main body at positions near both side surfaces of the main body, and are attached to the inner wall surface. A plurality of electrode supporting members supported by an insulating supporting member in an insulated state from the main body, and a plurality of second electrodes disposed between the first electrode members and having both ends fixed to the electrode supporting members.
An electrostatic air cleaning unit including an electrode member and a power supply device that supplies a high voltage between the first electrode member and the second electrode member, and is connected to the gas outlet of the electrostatic air cleaning unit. An air cleaner comprising: a gas suction unit having a fan for sucking gas and a drive device for driving the fan at a low speed. 3. The air cleaner according to claim 1 or 2, wherein the partition plate is divided into an upper part and a lower part by a partition plate having a gas passage hole in the center, and a gas discharge port is provided on one side surface of the upper part. A main body having a gas supply port on one side surface of the lower portion, and a gas flow hole of the partition plate in the lower portion are covered with the main body, and the bottom wall is a cylindrical container shape with a peripheral wall made of a filter material. And a rotary drive device for rotating the filter member about an axis, and a filter device is provided in which the gas outlet is connected to the gas inlet of the electrostatic air cleaner. An air purifier characterized by that.