JPS5921883Y2 - electric dust collector - Google Patents

Description

[Detailed description of the invention] This invention relates to an electrostatic precipitator that charges dust and collects it by electrically adsorbing it. The purpose is to simplify the grounding structure.

The inventors have already developed a dust collector that prevents dust from adhering to the discharge wire and counter electrode (Japanese Patent Application No. 52-29444).

As shown in FIG. 1, in this configuration, an ion generating section 103 is formed in a casing 101 apart from an air passage 102, and ions are generated here and the ions are added to the dust-containing air taken in through an intake port 104. is irradiated, thereby charging the dust, and collecting the dust at the dielectric filter 105 provided at the rear of the electric path 102. With this configuration, the adhesion of dust to the discharge wire 106 and the counter electrode 107 is prevented. significantly reduced.

However, the above-mentioned attached dust cannot be completely eliminated,
The fine dust enters the ion generating section 103 and also adheres to the counter electrode 107.

In other words, when cigarette smoke or oil cysts such as lard or salad oil are inhaled, the oil adheres to and accumulates on the counter electrode 107, and if this is left untreated, the discharge of the discharge wire decreases and the ability to charge dust decreases. Therefore, a big problem arises in that the dust collection efficiency decreases.

The present invention is to provide an electrostatic precipitator in which the counter electrode is removable to solve the above problems, and the grounding structure of the counter electrode is simplified.An embodiment thereof will be explained below based on FIG. 2. .

In FIG. 2, 1 is a casing of an electrostatic precipitator, 2 is an intake port of this casing 1, and 3 is an exhaust port of the casing 1.

Reference numeral 4 denotes a ventilation path formed between the intake port 2 and the exhaust port 3, and a fan 5 causes airflow to flow through the ventilation path 4.

6 is an ion generating part formed in communication with the above-mentioned ventilation path 4,
It is constituted by a recess facing the ventilation path 4.

Reference numeral 7 denotes a discharge wire disposed within the ion generating section 6, to which a positive voltage is applied by the high voltage generator 11.

8 is a counter electrode provided facing the discharge wire 7, substantially perpendicular to the airflow flowing in front of the ion generating section 6, and on the opposite side of the ventilation path 4; Dust charged by the discharge wire 7 is collected by a dielectric filter provided at the rear where it is not affected by the discharge caused by the discharge wire 7.

Reference numeral 10 denotes a lid for opening and closing the opening 1a provided above the ion generating section 6, and a counter electrode 8 is fixed to the lower surface of the lid 10.

Reference numeral 11 denotes a high voltage generator that supplies high voltage power to the discharge line 7 and grounds the dielectric filter 9, short circuit mechanism 12, and the like.

Reference numeral 12 denotes a short-circuiting mechanism for short-circuiting and grounding the high voltage of the discharge wire 7 to ensure safety when the lid 10 of the opening 1a is opened while high voltage is being applied to the discharge wire 7. At times, the movable plate 12a is urged upward by a spring, and comes into contact with the opposing electrode 8 to disconnect the end of the discharge wire 7, and simultaneously ground the opposing electrode 8.

In the above configuration, even if dust charged by sinter adheres to the counter electrode 8, the counter electrode 8 integrated therewith can be easily cleaned by removing the lid 10 from the opening 1a without disassembling the casing 1. Furthermore, it is possible to prevent the discharge wire 7 from being cut and damage to the internal mechanism during this maintenance, and even a general user can perform the maintenance.

Furthermore, a shortening device 12 is used to short-circuit and ground the high-voltage discharge wire 7 when the lid body 10 is removed to prevent danger.
Since the counter electrode 8 is used for grounding, the grounding terminal, lead wire, etc. of the counter electrode 8 can be eliminated.

As described above, according to the present invention, the counter electrode can be easily cleaned, good ionization efficiency can be maintained, and damage to the internal mechanism can be prevented when the counter electrode is removed.

Furthermore, the grounding configuration can be simplified and risks such as electric shock can be reliably prevented.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of an electrostatic precipitator according to an embodiment of the present invention, and FIG. 3 is a perspective view of the main parts of the lid and the short circuit mechanism. 1a...opening, 2...intake/air opening, 3
...Exhaust port, 4...Vent passage, 6...
...Ion generating part, 7...Discharge line, 8...
... Counter electrode, 9 ... Dust collection part (dielectric filter), 10 ... Lid, 11 ... High pressure generator, 12 ... Short circuit mechanism.

Claims (1)

[Scope of utility model registration request] An air passage connecting the intake port and the exhaust port, an ion generating section located outside the air passage and facing the air passage, and in the air passage,
It has a dust collecting section located behind the ion generating section and adsorbing charged dust, and the ion generating section is configured to irradiate ions into the ventilation path with a discharge wire and a counter electrode facing each other. The ion generating section is provided with an opening, and the counter electrode is fixed to a lid that removably closes this opening, and is connected to the ground terminal of the high voltage generator, so that when the lid is removed, the counter electrode is connected to the discharge wire when the lid is removed. An electrostatic precipitator in which the opposite electrode is grounded by detachably abutting a short-circuiting mechanism that short-circuits the application of high voltage to the opposite electrode.