JPH0699012A - Air purifier - Google Patents

Abstract

PURPOSE:To obtain an air filter device and dust collector of air purifier capable of sticking a particulate ion in air to a lamellar electrode member and easily removing the sticking soiling. CONSTITUTION:A filter device part A is provided with a 1st cylindrical filter member 33 and 2nd filter member 34, which are coaxially provided, in the inner chamber K2 of the main body 20 and with a patching metal-made filter plate 42 in the outer chamber K3. The 1st and 2nd filter member are rotatably mounted to a 2nd impeller. Uncleaned air is sucked from a side wall opening part by the revolution of the 1st impeller 31 connected to an electric motor 30 and particles having large particle diameter contained in air is efficiently removed by the filter plate and the rotated 1st, 2nd filter member. The dust collector 60 is constituted by mounting the lamellar electrode member 62 composed of many electrode plates and a rod type electrode member 63 to the case.

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 highly contaminated air containing oily smoke and the like.

[0002]

2. Description of the Related Art Conventionally, as a dust collector for an air cleaner of this type, as shown in FIGS. 10 to 12, for example, a plurality of metal plates 2a having slits are combined in a grid pattern. A plurality of electrode members formed by vertically inserting the rectangular cylindrical body 3a into the metallic cylindrical case 1 having upper and lower surfaces opened with the respective openings directed in the vertical direction. There is a structure in which the cylindrical body 3a of the combined + electrode member 3 is formed by inserting the cylindrical body 3a from the lower side of the case 1 into the lattice space of the-electrode member 2. Then, by applying a high voltage between the positive and negative electrode members of this dust collector, the air containing the oil smoke flowing from the lower side of the case is ionized, and the fine particle components mainly charged to + are grid-shaped. -Particulates in the air are removed by adsorbing to the electrode member 2. As a filter device of this type of air cleaner, for example, a single adsorption filter device is used.

[0003]

However, in the above dust collecting apparatus, it is easy to get dirty-when cleaning the electrode member 2, it is necessary to disassemble the metal thin plates assembled in a lattice and reassemble them after cleaning. There is a problem that it is very troublesome. In addition, since the thin metal plate is thin and has slits for combination, it is very likely to be deformed during disassembly / cleaning and assembling work. However, there is a problem that the distance between the two electrode members becomes small and discharge is likely to occur between the two electrode members when a high voltage is applied between the two electrode members. Further, this dust collector has a problem that the manufacturing cost becomes high especially because the structure of the + electrode member is complicated. Further, in the case of the above single adsorption filter device, particularly when cleaning air that is highly contaminated and contains oil, the adsorption performance is significantly deteriorated, the filter replacement work is complicated, and the cost of the filter is high. There's a problem. The present invention aims to solve the above-mentioned various problems.

[0004]

In order to achieve the above object, a structural feature of the invention according to claim 1 is that an air intake port is attached to a housing, and an air inlet is provided in a peripheral wall of the housing. Air suction device for sucking and circulating the air, a filter device for removing large particles in the suctioned air, and a collection device for removing smoke-like particles contained in the air passing through the filter device. In an air cleaner provided with a dust device, the dust collector comprises a cylindrical case and a plurality of thin metal plates having substantially the same shape as the cross-sectional shape of the cylindrical case and having a plurality of holes at predetermined intervals. A layered electrode member that is formed by overlapping in a mutually conductive state and is inserted in a cylindrical case, and a grid-shaped metal substrate formed so that the intersection point is located at the center position of the hole of the layered electrode member. And the same metal base And a plurality of metal rods of a predetermined length that are vertically attached at each intersection position of the metal rods inserted into the holes of the layered electrode member, and the metal substrate is attached to the cylindrical case. An electrode member, a plate-shaped air dispersion member attached to at least the end surface of the tubular case on the air inflow side by covering the end surface, and a high-voltage power supply device that applies a high voltage between the layered electrode member and the rod-shaped electrode member. I have configured it.

Further, the structural feature of the invention according to claim 2 is an air suction device which is attached to a housing and sucks and circulates air from an air suction port provided in a peripheral wall of the housing. In an air purifier provided with a filter device for removing large particles in the form of particles contained in the inhaled air, and a dust collector for removing smoke-like particles contained in the air passing through the filter device, The dust collector is superposed with a cylindrical case and a plurality of thin metal plates that have a plurality of holes that are substantially the same as the cross-sectional shape of the case and are electrically connected to each other at a predetermined interval. And a plurality of holes provided between the plurality of metal thin plates of the first layered electrode member and insulated from the same metal thin plate. A number of thin metal plates A second layered electrode member superposed so as to be in a conductive state, a plate-like air dispersion member attached to at least the end face on the air inflow side of the cylindrical case by covering the end face, and a first layered electrode member And a high-voltage power supply device for applying a high voltage between the second layered electrode members.

Further, the structural feature of the invention according to claim 3 is that it has a cylindrical shape and is horizontally attached to the inner peripheral wall thereof to provide a ventilation hole at the center which divides the internal space into an upper chamber and a lower chamber. And a circular partition plate that is fixed to the same circular partition plate in the lower chamber to divide the lower chamber into an inner chamber and an outer chamber, and at the lower end of which is a cylindrical partition that connects the inner chamber and the outer chamber. A main body provided with a plate, a first impeller attached to the upper wall of the main body in the upper chamber and driven by an electric motor, and a ventilation hole of the circular partition plate below the first impeller. A second impeller rotatably mounted on the periphery and at least one filter member whose cylindrical side surface is covered with a porous plate member on the surface of a perforated plate, and an upper surface having an opening is provided below the second impeller. First filter member having a bottomed cylindrical shape integrally attached to the side An air inlet attached to the side wall of the lower chamber of the main body, and a second filter member including at least one annular perforated plate attached to the lower side of the air inlet of the outer chamber along the inner and outer peripheral walls; And an air outlet provided on the side wall of the side chamber.

[0007] Further, the structural feature of the invention according to claim 4 is that in the air cleaner according to claim 3, a plurality of tubular casings are provided which have substantially the same cross-sectional shape as the tubular casing. A plurality of thin metal plates having holes are formed at a predetermined interval and overlapped with each other in a conductive state, and the layered electrode member inserted into the cylindrical case and the center position of the hole of the layered electrode member are formed. It is provided with a grid-shaped metal substrate formed so that the intersection points come to each other, and a plurality of metal rods of a predetermined length vertically attached at each intersection point of the metal substrate. A rod-shaped electrode member that is inserted into the hole of the layered electrode member and attached the same metal substrate to a cylindrical case, and a plate-shaped air dispersion member that is attached by covering at least the end face of the cylindrical case on the air inflow side of the same end face. Between the layered electrode member and the rod-shaped electrode member. The dust collecting apparatus having a high-voltage power supply apparatus for imparting in that attached to the air outlet.

Further, the structural feature of the invention according to claim 5 is that, in the air cleaner according to claim 3, a cylindrical case and a plurality of holes having substantially the same shape as the cross-sectional shape of the case. A plurality of thin metal plates having a, are formed by superposing them at a predetermined interval and in a state of being electrically connected to each other,
A first layered electrode member inserted in the tubular case, and a plurality of metals having a plurality of holes provided in a state insulated from the metallic thin plate between the plurality of metal thin plates of the first layered electrode member. A second layered electrode member in which thin plates made of metal are stacked so as to be electrically connected to each other, and a plate-shaped air dispersion member in which at least the end face of the tubular case on the air inflow side is covered with the same end face and attached. The dust collector having the one-layer electrode member and the high-voltage power supply device for applying a high voltage between the second layer electrode member is attached to the air outlet.

Further, the structural feature of the invention according to claim 6 is that in the air cleaner according to claim 3, claim 4 or claim 5, the rotary shaft of the first impeller and the second The elastic pressing member for pressing the other tip end portion of the rotary shaft of the impeller is provided.

Further, the structural feature of the invention according to claim 7 is that in the air cleaner according to claim 3, claim 4 or claim 5, the rotary shaft of the first impeller and the second shaft It is connected to the rotating shaft of the impeller.

Further, the structural features of the invention according to claim 8 are the above-mentioned claim 3, claim 4, claim 5, and claim 6.
Alternatively, in the air purifier according to claim 7, the air guide vane is attached along the inner and outer peripheral walls between the air inlet in the outer chamber and the annular porous plate.

[0012]

In the invention according to claim 1 configured as described above, the layered electrode member is used as a negative terminal between the layered electrode member and the rod-shaped electrode member of the dust collector to generate a direct current from the high-voltage power supply device. When a high voltage is applied and the air containing fine particles that have passed through the filter member is flowed from the air inflow side of the dust collector by the air dispersion member to flow into the cylindrical case, the fine particles are discharged to both electrodes. It is ionized by the high electric field formed between the members. Then, the positively charged particle ions are mainly adsorbed on the layered electrode member, which is the negative terminal. Then, for the layered electrode member soiled by the adsorption of the particle ions, it is possible to easily remove the soiled contaminants by sequentially taking out and laminating the laminated metal thin plates from the cylindrical case after using the air cleaner. I can.
Further, after removing the dirt, the thin metal plate can be returned to the original state easily by inserting it again into the cylindrical case. Since the metal thin plate is formed in a lattice shape and has a high strength, it is not easily deformed when the metal thin plate is detached and assembled and the stain is removed. As a result, according to the invention of claim 1, the dirt adhering to the dust collector can be removed by a simple operation, so that the maintenance time can be greatly reduced and it is very convenient. Further, since the thin metal plate is not deformed during disassembling or assembling the layered electrode member and during cleaning, the distance between the layered electrode member and the rod-shaped electrode member does not become short, and a high voltage is applied between both electrode members. When applied, no accident such as electric discharge occurs between the electrode members. Further, since the present dust collector has a simpler structure than the conventional dust collector in terms of both the layered electrode member and the rod-shaped electrode member, it is possible to greatly reduce the cost of the device.

Further, in the invention according to claim 2 configured as described above, one of the layered electrode members between the first layered electrode member and the second layered electrode member of the dust collector is used as a-terminal. In a state where a high voltage DC device is applied by the high-voltage power supply device, the air containing the fine particles that has passed through the filter member is flowed from the air inflow side of the dust collector by the air dispersion member to flow into the cylindrical case. Then, the fine particles are ionized by the high electric field. Then, the positively charged particle ions are mainly adsorbed to the layered electrode member on the − terminal side. Then, regarding the layered electrode member that has become dirty due to the adsorption of particle ions, the adhesion of dirt is not so noticeable after the use of the air cleaner, and the layered electrode member on the terminal side together with the laminated metal thin plates are sequentially taken out. By washing, the attached dirt can be easily removed.
Further, after removing the dirt, the thin metal plate can be returned to the original state easily by inserting it again into the cylindrical case. Since the metal thin plate is formed in a lattice shape and has a high strength, it is not easily deformed when the metal thin plate is detached and assembled and the stain is removed. As a result, according to the second aspect of the invention, the dust collector can be cleaned by a simple operation, which greatly reduces the maintenance time and is very convenient. In addition, since the thin metal plate is not deformed during disassembly of the first and second layered electrode members, assembling and cleaning, the distance between the first and second layered electrode members does not become short, and both electrodes do not become short. No accident such as electric discharge occurs between the electrode members when a high voltage is applied between the members. Further, since the present dust collecting device is composed of the flat first and second layered electrode members and has a simpler structure than the conventional one, the cost of the device can be greatly reduced. Is.

Further, in the invention according to claim 3 configured as described above, the first motor driven by the electric motor
By the rotation of the impeller, dirty air mixed with oil and the like is strongly sucked into the main body from the air inlet. And the first
The second impeller starts to rotate due to the rotation of the impeller, and the first filter member integrally attached to the second impeller also rotates. The dirty air that has flowed in from the air inlet first passes through the second filter member provided in the outer chamber, so that the large-grain particle components are roughly removed. Further, the air containing the oil component that has passed through the second filter member has a smoke-like fine particle component removed by the filtering action of the first filter member provided in the inner chamber and the centrifugal force of the rotation of the first filter member. The remaining oil component is removed. As a result, according to the invention of claim 3, the filter has a two-stage structure including the first and second filter members, so that a large-sized oil component excluding smoke-like fine particle components in the air is removed. Can be reliably removed.

In addition, in the invention according to claim 4 configured as described above, in addition to the effect of the invention according to claim 3, the air that cannot be removed by the first and second filter members. The smoke-like fine particle components contained therein are reliably removed by the dust collector. Since the layered electrode member with stains is formed by stacking lattice-shaped metal thin plates, cleaning can be easily performed by removing the metal thin plates from the case, removing the stains, and then assembling in the case. be able to. Further, at that time, the thin metal plate is not deformed. Therefore, the maintenance time of the dust collector can be greatly reduced, which is very convenient, and the effects described in claim 1 can be obtained together.

Further, in the invention according to claim 5 configured as described above, in addition to the function and effect of the invention according to claim 3, it cannot be removed by the first and second filter members. The smoke-like fine particle component contained in the air is reliably removed by the dust collector. The second layered electrode member, which is markedly contaminated with dirt, is formed by stacking lattice-shaped metal thin plates, so cleaning is easy by removing the metal thin plates from the case, removing the dirt, and then assembling in the case. Can be done. Also, at that time,
The thin metal plate will not be deformed. Therefore, the maintenance time of the dust collector can be greatly reduced and it is very convenient, and the effect described in claim 2 can be obtained together.

Further, in the invention according to claim 6 configured as described above, another rotating shaft is pressed by the elastic pressing member provided at the tip of the rotating shaft of the first impeller or the second impeller. As a result, the first and second impellers are joined together with a predetermined slippage. Therefore, the rotational force of the first impeller can be effectively transmitted to the second impeller within a range where the load on the electric motor is not increased. As a result, the dirt removing ability of the first filter member is further enhanced.

Further, in the invention according to claim 7 configured as described above, since the rotating shafts of the first impeller and the second impeller are integrally connected, the load on the electric motor is a problem. If this is not the case, the rotational force of the first impeller can be directly transmitted to the second impeller. As a result, the dirt removing ability of the first filter member is further enhanced.

Further, in the invention according to claim 8 configured as described above, the air guide vane portion mounted along the inner and outer peripheral walls between the air inlet in the outer chamber and the annular porous plate is the air inlet. By guiding the air sucked in from the outside chamber to the entire outer chamber without unevenness, the dirt removing ability of the second filter member can be maximized. Further, since the air is brought into a so-called cyclone state in which the air is swirled against the peripheral wall by the air guide vanes, oil components contained in the air are easily removed by the air guide vanes, which is combined with the effect of the second filter member. The dirt removal capacity in the chamber is further enhanced.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 schematically show an air purifying apparatus according to the present invention. The air purifying apparatus has a cylindrical filter device portion A provided on the left side and a box type filter device portion provided on the right side. The dust collector unit B is provided, and the filter unit A and the dust collector unit B are connected and connected by the air circulation cylinder C provided on the upper end side wall of the filter unit A, and the casters are provided at the four corners. It is mounted on a common bottom wall 10 with 11.

The filter unit A is provided with a cylindrical main body 20 made of stainless steel, and the inside of the main body is raised by a circular partition plate 21 having a ventilation hole 21a in the center fixed to the peripheral wall at a substantially intermediate position in the vertical direction. It is divided into a side chamber K1 and a lower chamber. Further, the lower chamber is formed by a cylindrical partition plate 24 fixed to the circular partition plate 21 to form an inner chamber K2 and an outer chamber K3.
It is divided into. Further, in the main body 20, the opening 20a1 is provided in the upper wall 20a, and the air inflow cylinder 22 is integrally attached to the opening 20b1 on the left side of the side wall 20b. The body may be made of other metal, plastic, or resin such as vinyl chloride instead of stainless steel.

An electric motor 30 is provided in the opening 20a1 of the upper wall 20a of the main body 20, and the rotary shaft 30a of the electric motor 30 projects into the upper chamber K1 and the first impeller is provided at the projecting portion of the rotary shaft 30a. 31 is attached. First
The central ventilation hole 21 of the circular partition plate 21 below the impeller 31
A cylindrical bracket 21b is screwed around a, and the bracket 21b rotatably supports a cylindrical through-cylinder 32a via a bearing 21c attached inside thereof. The through cylinder 32a has a lower end extending to the inner chamber K2, and a second impeller 32 is screwed to the upper end flange portion. Also, a circular partition plate 2
A cylindrical air guide cylinder 23 is provided on the bracket 1 above the bracket 1.
It is provided so as to surround 1b and the second impeller 32. At the tip of the rotary shaft 31a of the first impeller 31, as shown in FIG. 4, a pressing member 31 attached to the rotary shaft 31a by a spring 31a1 so as to be elastically movable in the axial direction.
a2 is provided, and the pressing member 31a2 presses the tip of the shaft 32a of the second impeller 32 so that the first impeller 31 and the second impeller 32 are connected with a predetermined slip. In addition, when the rotation efficiency of the second impeller 32 may slightly decrease, the first impeller 31 and the second impeller 3
The two rotation axes may be separated. In addition, the electric motor 30
When the load on the first impeller 31 and the second impeller 32 may not be a problem, the rotating shafts of the first impeller 31 and the second impeller 32 may be directly connected.

A circular flange portion 32 is attached to the outer wall near the lower end of the through cylinder 32a.
A first filter member 33 having an open upper surface and a second filter member 34 having a larger diameter than the first filter member are fixed by screws. As shown in FIGS. 1 and 3, the first filter member 33 includes a punching metal 33a1 having a cylindrical side wall 33a and a sponge plate 33a2 covering the outside thereof.
And the bottom wall 33b is made of a metal plate. Further, in the second filter member 34, the side wall 34a is composed of a cylindrical punching metal 34a1 and a plurality of sponge plates 34a2 attached to the outside thereof at a predetermined interval, and the bottom wall 34b is composed of a metal plate. The bottom walls 33b and 34b are provided with small holes 33b1 and 34b1 for oil outflow. The filter member is not limited to two layers, but may be one layer or three or more layers. Further, a glass fiber plate, a steel wool plate or the like may be used instead of the sponge plate.

In the outer chamber K3, as shown in FIGS. 1 and 3, a metal air guide for evenly dispersing the air sucked under the air inflow cylinder 22 in the outer chamber. A blade member 41 is provided, and five filter plates 42 made of punching metal, which constitute a second filter member, are provided below the blade member 41. A glass fiber plate, a sponge plate or the like may be used instead of the punching metal plate. In addition, the air guiding blade member 41 may be removed for applications in which even a slight decrease in the air dispersion efficiency or the like does not pose a problem. A mortar-shaped guide member 43 for guiding the filtered oil component is attached to the peripheral wall in the vicinity of the bottom wall 20b in the main body 20, and the lower end portion of the guide member 43 penetrates the bottom wall and drains. A pipe 44 is attached.

From the left side of the impeller 31 and the tubular bracket 21b in the upper chamber K1 to the air flow tubular body C,
As shown in FIGS. 1 and 2, an air passage member 45 formed by bending a plurality of punching metals in a zigzag manner is provided, and the air from the filter member A is properly guided into the dust collecting member B, and at the same time, the filter member is provided. Oils not removed by A are removed.

The dust collector unit B has a box-shaped main body 50, and a lid 51 to which a filter made of glass fiber is attached is provided in the opening 50a1 of the upper wall 50a of the main body. Further, in the vicinity of the bottom wall 50b in the main body 50, a hopper-shaped guide member 65 for guiding the filtered oil component is attached to the peripheral wall, and the lower end portion of the guide member 65 penetrates the bottom wall 10. A drain pipe 66 is attached. Further, the bottom wall 10 is provided with a power supply device 67 for supplying a predetermined voltage to the electric motor 30 and the like.
Then, in the main body 50, the dust collector 60 stacked in three stages from the opening provided in the upper wall 50a of the main body and the punching metal filter 60a stacked in three stages on the bottom thereof are inserted and fixed to the upper wall 50a. Has been done.

As shown in FIG. 5, the dust collector 60 includes a case 61 and a layered electrode member 6 inserted into the case from below.
2 and the rod-shaped electrode member 6 inserted from the upper part of the case 61
3 and an air dispersion member 64 in which a sponge plate 64a and a punching metal plate 64b attached to the lower end of the case on the air inflow side are overlapped. Case 61
Is a square frame-shaped upper plate 61a formed by sticking together three resin insulating plates 61a1 whose central portion is cut out in a square shape.
And an outer frame portion 61b made of metal, which is installed upright on the upper plate 61a. As shown in FIG. 6, the layered electrode member 62 includes an upper plate which is an electrode plate 62a having 121 square holes 62a1 of 2 cm square on a stainless steel plate of 30 cm square and a thickness of 2 mm and small holes 62a2 at four corners. 6
10 bolts are inserted into long bolts 62b standing upright at the four corners of 1a through spacers 62c of 1 cm and fixed by nuts. The layered electrode member 62 has a lead wire C1 fixed to the bolt 62b by the case upper plate 61a.
Is connected to the negative terminal of the high voltage power supply provided in the power supply device 67. The shape of the electrode plate 62a can be appropriately changed according to the intended use. Further, instead of the stainless steel plate, another metal plate such as an aluminum plate may be used.

The rod-shaped electrode member 63, as shown in FIG.
A 34.5 cm square, 2 mm thick stainless steel plate with a width of 0.8
Separated by a cm stripe, a 2 cm square hole 63
An electrode plate 63a provided with 155 a1 and four rectangular cutouts at each of the four corners, and a bolt 63 with a groove cut over the entire length at each intersection of the electrode plate 63a.
It is formed by 121 bar electrodes 63b provided by caulking b1. The rod-shaped electrode member 63 has the bolt 63.
The screw is fixed to the resin case upper plate 61a by b1 and is connected to the + terminal of the high voltage power source by the screwed lead wire C2. The shape of the electrode plate 63a can be appropriately changed according to the intended use.
Further, instead of the stainless steel plate, another metal plate such as an aluminum plate may be used.

The operation of the air cleaning apparatus constructed as above will be described. When a power switch (not shown) is turned on, the dust collector 60 is energized, the electric motor 30 starts to be driven, the first impeller 31 rotates, and the opening 22a in the side wall of the main body 20 starts. Air is sucked into the filter device section A. An elastic hose (not shown) is connected to the air inflow cylinder 22, and the contaminated air containing an oil component generated in a machining chamber or the like via the elastic hose is transferred to the main body 20. Is sucked into the outer chamber K3. The sucked air is uniformly dispersed in the entire outer chamber by the air guiding blades 41 provided subsequent to the air inflow cylinder 22, and is included in the air swirled by the air guiding blades 41. A part of the oil component adheres to the air guiding blade 41. The air that has passed through the air guiding blades 41 is guided to the five punching metal filter plates 42 located therebelow, where the oil component having a large particle size is further removed. That is, the oil component having a large particle diameter in the air sucked by the action of the air guiding blade 41 and the filter plate 42 is roughly removed. The oil component removed here is guided to the outside of the main body 20 through the guide member 43 provided in the vicinity of the bottom wall 20b and the drain pipe 44 attached to penetrate the bottom wall.

Next, the air passes through the lower side of the cylindrical partition plate 24 and flows into the second filter member 34 and the first filter member 33 of the inner chamber K2. Here, since both filter members 33 and 34 are rotating in accordance with the second impeller 32 that is rotating with the rotation of the first impeller 31, the oil content contained in the inflowing air is the same as the filter members 33. , 34 is very effectively removed by the filtering action and the centrifugal force of rotation. The oil removed here is the bottom wall 33
b, a small hole 33b1 for oil outflow provided in 34b1,
34b1, through a guide member 43 provided in the vicinity of the bottom wall 20b, and is guided to the outside of the main body 20 through a drain pipe 44 penetrating and attached to the bottom wall. further,
The air sucked by the second impeller 32 and the first impeller 31 is guided to the air circulation member 45 provided on the upper side wall of the upper chamber K1 and flows into the dust collecting unit B.

The air containing the oil component in the form of fine particles flows into the three dust collectors 60 from the bottom of the main body 50 through the filter 60a, and is uniformly dispersed by the air dispersing member 64 to form the layered electrode member. It flows into between 62 and the rod-shaped electrode member 63. At this time, a high DC voltage of 5200 V is applied between both electrode members connected to the high-voltage power source, and the high electric field ionizes the fine oil component to mainly +
To be charged. This + -charged fine-particle oil component is-
The layered electrode member 62, which is an electrode, is sucked and most of the layered electrode member 62 is adsorbed. In this way, the particulate oil component is reliably removed from the air that has passed through the three dust collectors 60. When the layered electrode member 62 is very dirty due to the use of the air cleaner, the high voltage power supply is turned off, the nut for fixing the metal electrode plate 62a is removed, and the electrode plates are sequentially removed. Oil stains adhering to the surface of 62a are removed by a detergent or the like. The electrode plate 62a from which the dirt is removed can be easily assembled by inserting it again into the bolt via the spacer 62c.

As described above, the filter device according to this embodiment has the filter plate 42 provided in the outer chamber K3.
And a side wall of the punching metal having a cylindrical shape and a sponge plate covering the outer side of the punching metal, and the rotating first filter member 33 and the second filter member 34 are provided in the two-stage filter device. It is possible to very effectively remove large-grained oil components other than the fine particle component. Further, in the dust collector 60 according to the present embodiment, the removal of the layered electrode member 62 having significant dirt, the removal of dirt, and the assembling work can be performed by a simple operation, so the maintenance time can be greatly reduced. It is very convenient.
Further, since the layered electrode member 62 is formed in a lattice shape and has high strength, the electrode plate 62a is not deformed during its disassembly, assembly, and dirt removal work. Therefore, the layered electrode member 62 and the rod-shaped electrode member 63 are formed. The distance between them does not become short, and no accident such as discharge occurs between the electrode members when a high voltage is applied between both electrode members. Further, the present dust collecting device 60 has a simpler structure than the conventional dust collecting device shown in FIGS. 10 to 12 for both the layered electrode member 62 and the rod-shaped electrode member 63, so that the cost of the device can be significantly reduced. Is possible.

Next, a second embodiment of the present invention will be described with reference to the drawings. The dust collector according to the present embodiment is the first
Instead of the rod-shaped electrode member 63 that constitutes the dust collector 60 of the embodiment, as shown in FIGS. 8 and 9, a second layer-shaped electrode member 65 (hereinafter First
The layered electrode member in the embodiment is constituted by the first layered electrode member 62).

As shown in FIG. 9, the second layered electrode member 71 is made of a stainless steel plate of 28 cm square and 2 mm thick and has a width of 1.2 mm.
The upper plate 61a is an electrode plate 71a formed by separating 25 square holes 71a1 of 3.3 cm square and forming symmetrical cutouts on the periphery.
It is formed by inserting five bolts into long bolts 71b standing upright at the four corners through spacers 71c of 2 cm and fixing them with nuts. Then, the second layered electrode member 71 includes the upper plate 61.
It is connected to the + terminal of the high voltage power source by the lead wire C1 screwed to a. In the first layered electrode member 62, the electrode plate 62a shown in FIG. 6 is attached to the long bolts 62b provided upright at the four corners of the case upper plate 61a via the spacers 62d of 2 cm.
It is formed by inserting one sheet, and each electrode plate 62a has a second
It is arranged between the electrode plates 71 a of the layered electrode member 71. The first layered electrode member 62 is connected to the negative terminal of the high voltage power supply by the lead wire C2 screwed to the case upper plate 61a.

However, even when the dust collecting device in which the first layered electrode member 62 and the second layered electrode member 71 are assembled and formed is incorporated into an air cleaning device and used, the dust collecting device shown in the first embodiment is collected. The same effect as the dust device can be obtained. Furthermore, since the present dust collector is simply configured by the flat plate-shaped metal electrode plate for both the first and second layered electrode members, the cost of the air cleaning device can be further reduced.

In the first and second embodiments described above, the air cleaner having the filter device section A and the dust collecting apparatus section B is described, but only the filter device section A may be used. Also, an air purifier of the type in which a conventional dust collector is connected to the filter device section A may be used. Further, the dust collector unit B according to the first embodiment or the second embodiment may be applied to the conventional filter device. Further, the air cleaning device described in each of the above-mentioned embodiments is an industrial air cleaning device for cleaning highly contaminated air containing oil components generated in mechanical grinding, polishing, etc. However, as an air purifier with a simple configuration that only has an air suction mechanism and a dust collector, it does not have the above-mentioned complicated filter device for cleaning the air containing cigarette smoke etc. You may comprise.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an air cleaner according to an embodiment of the present invention.

FIG. 2 is a sectional plan view taken along line II-II in FIG.

3 is a plan sectional view taken along the line III-III of FIG.

FIG. 4 is a partial cross-sectional view showing a connection relationship between a first impeller and a second impeller.

FIG. 5 is a front cross-sectional view showing a part of a dust collector used in the air purifier.

FIG. 6 is a plan view showing a part of an electrode plate constituting a layered electrode member of the dust collector used in the air purifier.

FIG. 7 is a plan view showing a part of a rod-shaped electrode member of the dust collector used in the air purifier.

FIG. 8 is a front cross-sectional view showing a part of the dust collector according to the second embodiment.

FIG. 9 is a plan view showing a part of an electrode plate of a second layered electrode member of the dust collector according to the second embodiment.

FIG. 10 is a schematic perspective view showing an electrode member according to a conventional example.

FIG. 11 is a schematic perspective view showing a + electrode member according to a conventional example.

FIG. 12 is a front view of a dust collector according to a conventional example.

[Explanation of symbols]

20; body, 21; circular partition plate, 24; cylindrical partition plate, 21a; vent hole, 30; electric motor, 31; first impeller, 32; second impeller, 33; first filter member, 34; second filter member, 22; air inflow cylinder,
33a1, 34a1; punching metal, 33a2, 3
4a2; sponge plate, 41; air guiding blades, 42; filter plate, 31a; rotating shaft, 32a; shaft, 45; air passage member, 50; body, 60; dust collector, 61; case,
62; (first) layered electrode member, 62a; electrode plate, 63;
Rod-shaped electrode member, 63a; Electrode plate, 63b; Rod electrode, 6
4; Air dispersion material, 67; Power supply device, A; Filter device part, B; Dust collection device part, C; Air circulation cylinder.

Claims (8)

[Claims] 1. An air suction device which is attached to a housing and which sucks and circulates air from an air suction port provided in a peripheral wall of the housing, and large particles having a particle shape contained in the sucked air. In an air cleaner provided with a filter device for removing and a dust collecting device for removing smoke-like fine particles contained in the air that has passed through the filter device, the dust collecting device includes a cylindrical case and a cylindrical case. A layered electrode which is formed by stacking a plurality of thin metal plates having substantially the same shape as the cross-sectional shape of the case and having a plurality of holes at predetermined intervals and in a state of being electrically connected to each other, and inserted into the cylindrical case. Member, a grid-shaped metal substrate formed so that an intersection point is located at the center position of the hole of the same layered electrode member, and a predetermined length vertically attached at each intersection position of the same metal substrate Multiple metal rods And a rod-shaped electrode member in which the same metal rod is inserted into the hole of the layered electrode member to attach the same metal substrate to the tubular case, and at least the end face of the tubular case on the air inflow side is the same. An air purifier comprising: a plate-shaped air dispersion member having its end surface covered and attached; and a high-voltage power supply device that applies a high voltage between the layered electrode member and the rod-shaped electrode member. 2. An air suction device which is attached to a housing and sucks and circulates air from an air suction port provided in a peripheral wall of the housing, and a large particle having a particle shape contained in the sucked air. In an air cleaner provided with a filter device for removing and a dust collecting device for removing smoke-like particles contained in the air that has passed through the filter device, the dust collecting device includes a cylindrical case and a case. A plurality of thin metal plates having substantially the same shape as the cross-sectional shape and having a plurality of holes are stacked and formed in a state in which they are electrically connected to each other at a predetermined interval and are inserted into the cylindrical case. The one-layer electrode member and a plurality of metal thin plates having a plurality of holes provided between the plurality of metal thin plates of the first layer electrode member in an insulated state from the metal thin plate are electrically connected to each other. So that A second layered electrode member, a plate-shaped air dispersion member attached to at least the end face of the tubular case on the air inflow side by covering the end face, and between the first layered electrode member and the second layered electrode member. An air purifier characterized by comprising a high-voltage power supply device for applying a high voltage. 3. A circular partition plate having a cylindrical shape, which is horizontally attached to a peripheral wall of the inside thereof and which has a ventilation hole in the center for dividing the internal space into an upper chamber and a lower chamber, and the circular partition in the lower chamber. A main body fixed to the plate to divide the lower chamber into an inner chamber and an outer chamber, and at the lower end thereof, a main body provided with a cylindrical partition plate that communicates the inner chamber and the outer chamber, and the upper chamber. A first impeller attached to the upper wall of the main body and driven by an electric motor, and a second impeller rotatably attached around the ventilation hole of the circular partition plate under the first impeller. A wheel and a bottomed surface in which a cylindrical side surface is composed of at least one layer of filter member in which the surface of a perforated plate is covered with a porous plate member, and an upper surface having an opening is integrally attached to the lower side of the second impeller. A cylindrical first filter member, and a lower chamber of the main body An air inlet attached to a side wall of the upper chamber, a second filter member formed of at least one annular porous plate attached to an inner and outer peripheral wall below the air inlet in the outer chamber, and provided on a side wall of the upper chamber. An air purifier characterized by comprising: 4. The air purifier according to claim 3, wherein a cylindrical case and a plurality of thin metal plates having a plurality of holes and having substantially the same cross-sectional shape as the cylindrical case are provided at predetermined intervals. In addition, a layered electrode member that is formed by superimposing them in a state where they are electrically connected to each other and is formed so that the intersection point position is at the center position of the hole of the layered electrode member and the hole of the same layered electrode member. Of the metal substrate, and a plurality of metal rods of a predetermined length vertically attached at each of the intersections of the metal substrate, the metal rods are inserted into the holes of the layered electrode member. A rod-shaped electrode member in which the same metal substrate is attached to the tubular case, a plate-shaped air dispersion member in which at least the end face on the air inflow side of the tubular case is covered with the end face, and the layered electrode member and Applying a high voltage between rod-shaped electrode members Air purifier, characterized in that fitted with dust collection device that includes a piezoelectric source device to the air outlet. 5. The air cleaner according to claim 3, wherein a cylindrical case and a plurality of thin metal plates having a plurality of holes and having substantially the same cross-sectional shape as the case are provided at predetermined intervals. A first layered electrode member inserted into the tubular case and formed in a state where they are electrically connected to each other, and a metallic thin plate between a plurality of metallic thin plates of the first layered electrode member. A second layered electrode member in which a plurality of thin metal plates having a plurality of holes provided in an insulated state are stacked so as to be in a conductive state with each other, and at least an end surface of the cylindrical case on the air inflow side. The air collecting device is provided with a plate-shaped air dispersion member having the same end face covered and attached thereto, and a high-voltage power supply device for applying a high voltage between the first layer electrode member and the second layer electrode member. An air purifier characterized by being attached to the outlet 6. The air cleaner according to claim 3, claim 4, or claim 5, wherein a tip portion of one of the rotation shaft of the first impeller and the rotation shaft of the second impeller. An air purifier characterized in that an elastic pressing member for pressing the other tip portion is provided on the. 7. The air cleaner according to claim 3, 4, or 5, wherein the rotation shaft of the first impeller and the rotation shaft of the second impeller are connected to each other. A characteristic air purifier. 8. The air cleaner according to claim 3, claim 4, claim 5, claim 6, or claim 7, wherein an inner and outer peripheral wall is provided between the air inlet in the outer chamber and the annular porous plate. An air purifier characterized in that an air guide vane is attached along the line.