JPS60845A - Air cleaner utilizing filter for dust collecting electrode - Google Patents

Abstract

PURPOSE:To improve dust collecting efficiency remarkably by utilizing a filter itself as an electrode of an electric dust collecting machine. CONSTITUTION:A positive DC high voltage is impressed to a forestage filter 9 sandwiched by metallic nets 7 from a high voltage block 12. A poststage filter 10 sandwiched by metallic nets 8 is provided in parallel to said filter 9 and is used as a dust collecting electrode. Dust 15 is ionized by the positive DC high voltage while the dust passes through the filter 9, and ionized finer dusts 16 which are not caught by the filter 9 and pass through the filter 9 are caught by the filter 10 at the succeeding stage effectively because the filter 10 functions also as a dust collecting electrode.

Description

DETAILED DESCRIPTION OF THE INVENTION Conventional air cleaners collect dust using filters and electrostatic dust collection.

There are no filters that can collect nearly 100% of the dust, and even if one were to be made, the pressure drop would be so large that it would be unusable.

On the other hand, electric collectors ionize the dust using a positive DC high voltage and trap it with the dust collector SM, but in order to improve the efficiency of air purification, the fan of the air purifier is used. When you press hard and increase the speed of the airflow,
A disadvantage is that the ionized dust flies out of the dust collection electrode before being captured by the dust collection electrode.

Therefore, methods that combine dust collection with a filter and electrostatic collection are often used.

On the other hand, the method of the present invention uses the filter itself as an electrode for electrostatic precipitation, which greatly increases the dust collection efficiency.

Next, its operation and effects will be explained using figures.

FIG. 1 shows a combination of electrostatic precipitator and filter precipitator, in which an ion field 3 is generated between an ionizing electrode 1 and a dust collecting electrode 2. In FIG.

The dust (a) that flew in during this time is ionized, attracted by the dust collector [2], and captured as shown in (b).

In this case, if the pulling force of the fan is strong, only a small portion of the dust will be caught in the part (c), and most of it will fly out from the dust collector S pole 2.

This is captured by the filter 4, but it is not possible to completely collect it with the filter 4, and even if it is able to capture the large particles (d), the small particles 5 will still fly out.

Therefore, in the case of air purifiers, the current situation is that if the power of the fan is weakened in consideration of dust collection efficiency, it will not be effective in a large area, and if the power of the fan is increased, the dust collection power will be significantly reduced.

On the other hand, the one in FIG. 2 is a detailed explanation of the present invention, and gold #l! A positive DC high voltage is applied from the high voltage block 12 to the pre-stage filter 9 sandwiched between the filters 17 and 17.

A post-filter 10 sandwiched between wire meshes 8 in parallel with it is used as a dust collection electrode, and dust 15
When passing through the filter 9, the ionized fine dust 16 is ionized by the positive DC high voltage, and the ionized fine dust 16 that cannot be captured by the filter 9 and passes through the filter 9 is absorbed by the filter 10 in the next stage, which also serves as the south pole for collecting dust. Captured efficiently.

The collected air is further deodorized when passing through a deodorizing filter 11, and anions, which are called air vitamins, released from an anion needle electrode 13 are added to become clean air 17, which then passes through a sirocco fan 14. and go outside 18.

[Brief explanation of the drawing]

The figures show embodiments of the present invention, with FIG. 1 being an explanatory diagram of a conventional dust collection method, and FIG. 2 being an explanatory diagram of the dust collection method of the present invention. 1 is an ionization electrode 2 is a dust collection electrode 3 is an ion field 4
is the filter 5 is the dust that could not be captured and flew out
A, Mouth, C, 2 is dust 6 is dirt 1 air 7.8
is wire mesh 9 is front stage filter 10 is rear stage filter 1
1 is a deodorizing filter 12 is a high pressure block 13 is an anion generating needle electrode 14 is a sirocco fan 15 is dust 16 is ionized fine dust 17 is clean air 1
8 is external.

Claims (1)

[Claims] /) Filters 9 and 1 to which a positive DC high voltage is applied, and a rear filter 10 sandwiched between wire meshes 8 is installed as a dust collection electrode in parallel to a front filter 9 sandwiched between wire meshes 7.・An air purifier that uses 0 itself as a dust collection electrode, and uses a filter as a dust collection electrode. 2) A deodorizing filter 11 is installed next to the front stage filter 9 to which a DC high voltage is applied and the rear stage filter 10 which also serves as a dust collection electrode, followed by the anion generation needle electrode 13, which is a filter as a dust collection electrode. Air purifier.