JP2000354788A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a capturing efficiency of the oil mist having poor static charge property. SOLUTION: A fine linear electrode 2F is used as an electrode 2 and a nichrome wire is used as the electrode 2F. The voltage obtained by regulating the primary side voltage of high-voltage power source 3 by a transformer 4 is applied to the electrode (heater electrode) 2F to heat to redness. The oil mist is carbonized or smoked by receiving heat from the heater electrode 2F and the static charge property is improved. In this way, the oil mist poor in static charge property can be captured which has been almost impossible up to now.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaning apparatus for applying a high voltage between opposing electrodes and applying a potential to foreign substances contained in air passing between the electrodes to collect them.

[0002]

2. Description of the Related Art Heretofore, a potential-type air purifier as shown in FIG. 3 has been used as this type of air purifier. In the figure, 1 is a first electrode,
Reference numeral 2 denotes a second electrode provided to face the first electrode 1;
Is a high voltage power supply for applying a high voltage between the electrode 1 and the electrode 2. In this air cleaning device, a high voltage is applied between the electrodes 1 and 2 by the high-voltage power supply 3, so that a potential is applied to foreign matter such as dust mist contained in the air passing between the electrodes 1 and 2 to separate and collect the air. Is done.

In FIG. 3, the discharge is not stable because the electrode 2 is a flat electrode 2A. Therefore, as shown in FIGS. 4, 5, 6, and 7, there is a device in which the shape of the electrode 2 is changed to stabilize the discharge. In FIG. 4, a triangular pyramid-shaped electrode 2B is used as the electrode 2, and the apex (sharp needle-shaped tip) of the triangular pyramid-shaped electrode 2B is opposed to the electrode 1. In FIG. 5, a thin linear electrode 2C is used as the electrode 2, and a continuous line portion of the electrode 2C (equivalent to a continuous sharp needle-like tip) is opposed to the electrode 1. In FIG. 6, a square electrode 2D is used as the electrode 2,
The side surface of the electrode 2D is pointed in a triangular shape, and the ridged portion (equivalent to a series of sharp needle-like tips) that is pointed in the triangular shape is opposed to the electrode 1. In FIG. 7, a ring-shaped electrode 2E is used as the electrode 2, and the peripheral portion of the side surface of the electrode 2E is sharpened in a triangular shape. (Equivalent) to the electrode 1.

[0004]

However, in the conventional air purifier, the collection rate of steam mist and solid dust is high because of good chargeability, but the collection rate of oil mist with low chargeability is low. .

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide an air purifying device capable of increasing the collection rate of poorly charged oil mist. is there.

[0006]

According to the present invention, in order to achieve the above object, in the above-described air cleaning apparatus, at least one of the opposed electrodes is a heater electrode which receives power and generates heat. is there. According to the invention,
The oil mist is carbonized or smoked by receiving heat from the heater electrode, and the chargeability is improved. Note that a heater may be provided between the opposed electrodes without using the heater electrodes.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on embodiments. FIG. 1 is a diagram showing a main part of an air purifying apparatus showing an embodiment of the present invention.

In this embodiment, a thin linear electrode 2F is used as the electrode 2, and this electrode 2F is a nichrome wire. Then, a voltage obtained by adjusting the primary side voltage of the high voltage power supply 3 by the transformer 4 is applied to this electrode (heater electrode) 2F so as to cause red heat.

In this air purifying device, the heater electrode 2F is red-hot, so that the oil mist is carbonized or smoked by the heat from the heater electrode 2F, and the chargeability is improved. As a result, it becomes possible to collect oil mist having poor chargeability, and the collection rate of oil mist is increased.

[0010] Further, by heating the heater electrode 2F red, the discharge efficiency is increased. In the experiment of the inventor, the discharge efficiency was several times higher than when no red heat was generated, and the discharge current also maintained a stable discharge.

In FIG. 1, the heater electrode 2F is a nichrome wire, but it is needless to say that the heater electrode 2F is not limited to the nichrome wire. Further, the electrodes 2A, 2B, 2D, and 2E shown in FIGS. 3, 4, 6, and 7 may be used as heater electrodes to generate heat. 2 may be caused to generate heat. Also, the first electrode and the second electrode are not used without using the heater electrode.
A heater may be provided between the first and second electrodes to heat the passing air. Alternatively, a cylindrical electrode 1 'as shown in FIG. 2 may be used, and the heater electrode 2F may be arranged inside the electrode 1'.

[0012]

As is apparent from the above description, according to the present invention, at least one of the opposing electrodes is a heater electrode that generates heat by receiving the supply of electric power. The mist is carbonized or smoked,
The chargeability is improved, and the collection rate of poorly chargeable oil mist can be increased. Further, by causing the heater electrode to generate heat, the discharge efficiency is increased, and the discharge current is maintained at a stable level. Note that a heater may be provided between the first electrode and the second electrode without using the heater electrode. In this case, the oil mist is carbonized or smoked by receiving heat from the heater, The chargeability is improved, and the collection rate of poorly chargeable oil mist can be increased.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a main part of an air cleaning device according to another embodiment of the present invention.

FIG. 3 is a diagram showing a main part of a conventional air cleaning device.

FIG. 4 is a diagram showing a main part of a conventional air cleaning device that stabilizes discharge.

FIG. 5 is a diagram showing a main part of a conventional air cleaning device that stabilizes discharge.

FIG. 6 is a diagram showing a main part of a conventional air cleaning device that stabilizes discharge.

FIG. 7 is a diagram showing a main part of a conventional air cleaning device configured to stabilize discharge.

[Explanation of symbols]

1, 1 ': first electrode, 2F: second electrode (heater electrode), 3: high voltage power supply, 4: transformer.

Claims (4)

[Claims] 1. An air purifying apparatus for applying a high voltage between opposing electrodes and applying a potential to foreign substances contained in air passing between the electrodes to collect the foreign substances, wherein at least one of the electrodes receives power and generates heat. An air purifier characterized by being a heater electrode that performs heating. 2. The air cleaning apparatus according to claim 1, wherein the heater electrode is a thin linear electrode. 3. The air cleaning apparatus according to claim 1, wherein the electrode facing the heater electrode is a cylindrical electrode, and the heater electrode is disposed inside the cylindrical electrode. . 4. An air cleaning apparatus for applying a high voltage between opposing electrodes and applying a potential to foreign substances contained in air passing between the electrodes to collect the foreign substances, wherein a heater is provided between the electrodes. And air purifier.