JPS6034359Y2 - smoke removal device - Google Patents

Description

[Detailed description of the invention] This invention relates to a device for removing pollutants floating in the air such as smoke, and more specifically, it charges fine particles floating in the air by corona discharge etc. The present invention relates to a device for removing smoke, etc., using a so-called electric dust collection method in which smoke is collected on a dust collection electrode.

There is an air purifier that uses an electrostatic precipitator method as a device to remove dust from the air, but conventional air purifiers of this type alternately install a discharge electrode and an electrode plate facing it in the flow path of dust-containing air. These electrodes were arranged side by side and could not be easily disassembled and reassembled.

Therefore, when conventional air cleaners of this kind are used to remove sticky dust such as smoke, it is very difficult to clean the electrodes and the handling is quite complicated.

In addition, in conventional electrostatic precipitators, air turbulence occurs in the discharge space between the discharge electrode and the counter electrode, so if there is a large amount of dust in the air, it is discharged by corona ions [Charged dust charged with the same polarity as the electrode is discharged] Since it occurs near the electrodes, it weakens the unequal electric field and reduces the discharge current, which has the disadvantage of significantly deteriorating the dust collection performance.

The object of the present invention is to eliminate the above-mentioned drawbacks of conventional devices and to provide a smoke removal device that is easy to handle and exhibits excellent removal performance even for highly concentrated smoke.

Next, the configuration of the present invention will be explained based on the drawings.

1 and 2 are a sectional view and a perspective view thereof of an embodiment of the present invention, and FIG. 3 is a perspective view of an electrode member used in the embodiment.

The smoke removal device of the present invention has a projecting end 12 as shown in these figures.
A discharge electrode mounting member 5, on which a plurality of needle-shaped discharge electrodes 4 are disposed, is provided with a locking part 7 having a circular cross section surrounding the discharge electrode 4, and serving as a counter electrode of the discharge electrode 4 and a dust collection electrode. It is formed by inserting a connecting part 9 provided at the lower end of the electrode member 8 into the locking part 7.

The electrode member 8 is a member in which a plurality of cylindrical electrodes 1 are integrally molded at the upper end with a slit 16 left around the periphery, and covers the upper end opening surface of the cylindrical electrode 1 and has the same radius as the cylindrical electrode 1. It is formed by providing a breathable hemispherical electrode member 3.

Then, when the connecting portion 9 of the electrode member 8 is inserted and locked into the locking portion 7 of the discharge electrode mounting plate 5, a flow path 2 is formed around the discharge electrode 4 by the cylindrical electrode 1, and at the same time, the protrusion of the discharge electrode 4 is The end 12 is positioned on the bottom surface of the hemispherical electrode 3.

To make the breathable hemispherical electrode 3 of the present invention, conductive rubber or plastic may be molded into a predetermined shape so as to become porous with open cells by a known method. It can also be made by forming a fiber-based material into a hemispherical shape.

As described above, the electrode member 8 of the present invention is detachably attached to the discharge member 5.
Therefore, it is desirable to make the electrode member from a flexible material in order to facilitate the connection.Such flexible electrode members can be easily made from known conductive rubber, plastics, etc. I can make it.

Furthermore, since the device of the present invention is to collect sticky pollutants such as smoke, it is desirable that the electrode member 8 has absorbency for the sticky substances. The conductive electrode member can be easily made by forming the above-mentioned conductive material into a porous material like a sponge using a known method.

The absorbent electrode member can also be made by laminating a wire mesh or the like and an organic or inorganic absorbent material so that the inner surface of the cylindrical electrode 1 is conductive.

Next, the effects of the present invention will be explained.

Now, in the smoke removal device of the present invention having such a configuration, when a high voltage is applied between the cylindrical electrode 1 and the discharge electrode 4 by a high voltage power source (not shown), corona discharge occurs at the protruding end 12. 12 is located on the bottom surface of the hemispherical electrode 3, and since the semicircular electrode 3 having the same radius as the cylindrical electrode 1 is provided on the upper opening surface of the cylindrical electrode 1, it is radiated by the corona discharge. The corona ions are uniformly emitted toward the inner surface of the hemispherical electrode 3 that is equidistant from the protruding end 12, and are hardly emitted toward the inner surface of the cylindrical electrode 1 because they are repelled by the discharge electrode itself.

A negative pressure area is generated in the vicinity of the protruding end 12 due to the corona wind generated with the emission of corona ions. Since air is supplied along the sides, the corona wind becomes a steady airflow that is strong at the top of the hemispherical electrode 3 and becomes weaker toward the edge.

Under such circumstances, when dust-containing air is sent in from the direction of the arrow by a blowing means (not shown), the dust-containing air that has passed through the breathable hemispherical electrode 3 is subjected to the steady wind pressure of the corona wind, so that the pressure increases. A laminar flow flows in a lower direction, that is, from the inner surface of the hemispherical electrode 3 to the inner surface of the cylindrical electrode 1.

Therefore, since the dust in the dust-containing air is charged near the inner surface of the hemispherical electrode 3, the charged dust hardly weakens the unequal electric field in front of the protruding end 12.

The thus charged dust is transferred to the hemispherical electrode 3 and the cylindrical electrode 1.
When the electrode member 8 reaches its dust collection limit, the electrode member 8 is removed from the discharge electrode mounting member 5 and replaced.

In the electrode member 8 of the present invention, a plurality of cylindrical electrodes 1 each having a connecting portion 9 at the lower end are integrally molded at the upper end, and a slit 16 is provided between them, so that it can be attached to and removed from the discharge electrode mounting member 5. It is easy to connect and there is little deformation when connecting.

Furthermore, in the present invention, as described above, the charged dust hardly weakens the unequal electric field near the discharge electrode, so the discharge current does not decrease even in the case of highly concentrated smoke, and therefore excellent dust collection performance is exhibited.

Further, according to the present invention, since the electrode member 8 can be easily attached and detached, cleaning is also extremely easy.

Thus, the present invention eliminates the drawbacks of conventional devices and provides a smoke removal device that is easy to handle and exhibits excellent removal performance even for highly concentrated smoke.

[Brief explanation of the drawing]

1 and 2 are a sectional view and a perspective view of an embodiment of the present invention, and FIG. 3 is a perspective view of an electrode member used in this embodiment. 1... Cylindrical electrode, 2... Channel, 3...
...hemispherical electrode, 4...corona discharge electrode, 5...discharge electrode coverage member, ...vent hole, 7...locking Part, End...Electrode member,...Connection part, 10...Substrate, 12...Protruding end, 3...High voltage terminal, 14... stage, 15... stage, 16... slit.

Claims (3)

[Scope of utility model registration request] (1) The discharge electrode mounting member 5 is provided with a plurality of needle-shaped corona discharge electrodes 4 that discharge at the protruding end 12, and a locking part 7 is provided surrounding the discharge electrode 4, and a plurality of cylindrical electrodes 1 are disposed on the discharge electrode mounting member 5. The cylindrical electrode 1 is formed by covering the upper end opening surface of the cylindrical electrode 1 of the member integrally molded at the upper end with a slit 16 left.
A breathable hemispherical electrode member 3 having the same radius as the electrode member 8 is provided, and a connecting portion 9 provided at the lower end of the cylindrical electrode 1 is provided.
By removably inserting and locking into the locking part 7,
A smoke removal device in which a flow path 2 is formed around each discharge electrode 4, and a protruding end 12 of the discharge electrode 4 is located on the bottom surface of the hemispherical electrode 3. (2) The smoke removal device according to claim 1, wherein the electrode member 8 is a flexible electrode member. (3) The smoke removal device according to any one of claims 1 and 2, wherein the electrode member 8 is an electrode member that absorbs adhesive substances.