TWM592766U - Corona discharge type air cleaning device - Google Patents

Abstract

A corona discharge type air cleaning device includes: a housing body having an air suction port and an upper surface portion formed of titanium; a positive electrode formed by a plurality of slit-shaped holes or lattices formed on the upper surface portion of the housing body The exhaust hole in the shape of a hole has a thickness of about 1.5mm; the cylindrical dust collector is vertically arranged from the upper surface portion around the exhaust hole to the interior of the housing body, and is positively charged; a plurality of needles The electrode is a stainless steel needle electrode with a plurality of negative electrodes facing the grid-shaped positive electrode, and the front ends of the plurality of needle electrodes face the positive electrode; and a DC high-voltage current unit that receives a DC low-voltage voltage to generate a DC high-voltage voltage , A high-voltage DC voltage is applied to the plurality of needle-shaped electrodes, and the positive electrode has a thickness of about 1.5 mm.

Description

Corona discharge type air cleaning device

This new creation is about an ion wind. The corona discharge air purification device of ozone is about a kind of sterilization. Sterilization. Deodorant. Dust collecting corona discharge air cleaning device.

Previously, ions and ozone were generated by corona discharge to sterilize dust and other objects. There is a device for deodorizing, and there is a device that performs corona discharge in a space different from the space in which the object is arranged, transmits the generated ions and ozone to the space of the object, and performs sterilization and deodorization.

However, the previous corona discharge type sterilization and deodorization device can use corona discharge to clean the air, but in reality, the ion wind is weak, and the ability to charge the dust and collect the dust is also insufficient.

[Prior Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2017-217572

The purpose of this new creation is to provide an enhanced ion wind with strong dust collection efficiency and sufficient sterilization. Sterilization. Deodorant. Corona discharge type air cleaning device with dust collection effect Set.

In order to achieve the above-mentioned problems, this new creation provides the following corona discharge air cleaning device for sterilization, deodorization and dust collection.

Sterilization of this new creation. Deodorant. The corona discharge type air cleaning device for dust collection is a corona discharge type air cleaning device including the following parts: a casing body having an air suction port and including an upper surface portion formed of titanium; a positive electrode formed by the casing The upper surface of the main body is composed of a plurality of slit-shaped holes or lattice-shaped holes of exhaust holes, and the positive electrode has a thickness of about 1.5 mm; a cylindrical dust collector plate from the exhaust holes The upper surface portion around the is vertically provided toward the inside of the housing body and is positively charged; a plurality of needle-shaped electrodes are stainless steel needle-shaped electrodes that are a plurality of negative electrodes facing the grid-shaped positive electrode, and are The front ends of the plurality of needle-shaped electrodes face the positive electrode; and the DC high-voltage current unit receives a DC low-voltage voltage to generate a DC high-voltage voltage, and applies a DC high-voltage voltage to the plurality of needle-shaped electrodes. A high DC voltage is applied between the plurality of needle electrodes to generate a corona discharge between the negative electrode and the positive electrode, generating ozone and ions and forming a negative ion wind toward the positive electrode, so that the surrounding air is directed toward the exhaust hole Entrapped into the body of the shell, the fine dust contained in the air is attached to the positively charged dust collecting plate and is sterilized, deodorized, and dust collected.

The corona discharge air cleaning device for sterilization, deodorization and dust collection created by the new model can apply a high voltage of 7KV~8KV to generate a corona discharge between the slit-shaped titanium positive electrode and the needle electrode. And ozone, forming a strong negative ion wind toward the positive electrode, and the negatively charged particles are efficiently collected by the positively charged cylindrical dust collection plate arranged around the exhaust hole, and the ion flow is efficiently Guide to the exhaust hole for sterilization and deodorization.

1: Corona discharge air cleaning device

2: slit

3: exhaust hole

4: upper surface part

5-1, 5-2: side

6: suction port

7: Dust collector

8: Needle electrode mounting plate

9: Needle electrode installation position

10: Conductive pattern

11: needle electrode

12: Support legs

13: External power supply terminal

14: DC voltage adapter

15: Transformer

SW: ON/OFF switch

a: shell body

b: positive electrode

c: DC high voltage current unit

Fig. 1 is a perspective view of a corona discharge air cleaning device created by the new model.

FIG. 2 shows an upper surface portion of a casing body of a corona discharge type air cleaning device having a positive electrode composed of a plurality of slit-shaped holes or vent holes in a lattice-shaped hole.

Figure 3 is a side view of the corona discharge air cleaning device created by the new model.

FIG. 4 is a schematic diagram showing the internal structure of the corona discharge type air cleaning device created by the present invention.

FIG. 5 is a view showing a needle-shaped electrode mounting plate arranged inside the case body and used to erect the needle-shaped electrode on the upper surface.

6 is a conductive pattern formed on the lower surface of the needle-shaped electrode mounting plate and connected to the needle-shaped electrode standing on the upper surface.

Fig. 7 shows the results of measuring the viable cell count of a gelatine filter.

FIG. 8 shows the measurement results of the number of floating particles in the case of natural attenuation.

FIG. 9 shows the measurement result of the number of floating particles when the specimen is operated.

Fig. 10 shows the results of Cryjl concentration measurement.

FIG. 11 shows the measurement result of the number of floating particles in the measurement of natural attenuation.

FIG. 12 shows the measurement result of the number of floating particles in the measurement when the specimen is operating.

Fig. 13 shows the test results on ammonia.

Fig. 14 shows the test results on hydrogen sulfide.

Fig. 15 shows the test results of cigarette dust removal performance.

The form for implementing the novel creation will be described below with reference to the drawings. These implementations are examples to illustrate the creation of the new model, and it is not possible to limit the creation of the new model to these implementations. As long as there are no special contradictions, those covered by the new-type creation defined in the scope of patent application shall belong to this new-type creation.

Figure 1 shows the sterilization of an implementation of the new creation. Deodorant. Corona discharge air cleaning device 1 for dust collection. The air cleaning device 1 has a rectangular parallelepiped shape, a positive electrode including a plurality of circular exhaust holes 3 having six parallel slits 2 is provided on the upper surface portion 4, and the outer periphery of the upper surface portion 4 is formed by four squares Surrounded by sides. Three rows of intake ports 6 are provided above the side 5-1 and side 5-2, and a switch SW that turns the air cleaning device ON/OFF is provided below the side 5-1. Refer to Figures 1 and 3. In this embodiment, the main body of the air cleaning device has a rectangular parallelepiped shape, but the shape of the main body of the air cleaning device is not limited to a cubic body as long as a plurality of parallel slit-shaped exhaust holes 3 can be provided in the upper surface portion 4. shape. Cover with another cover In the case of the air cleaning device body, one or both sides may be omitted as long as it does not hinder the strength of the body. The case body a includes an upper surface portion 4, a side surface 5-1 and a side surface 5-2, and the positive electrode b includes a slit 2 and an exhaust hole 3.

Sterilization of this new creation. Deodorant. In the corona discharge type air cleaning device for dust collection, by setting the thickness of the positive electrode preferably to 1.5 mm, the ion wind to be described later can be enhanced, so that dust collection and sterilization can be performed efficiently. disinfect. In addition, in order to prevent deterioration due to ozone oxidation, at least the upper surface portion of the air cleaning device body is formed of titanium, preferably the entire air cleaning device body is formed of titanium.

FIG. 2 shows the upper surface portion 4, and a plurality of circular exhaust holes 3 including six parallel long and short slits 2 are provided at the substantially center thereof. In the corona discharge type air cleaning device created by the present invention, instead of a plurality of parallel slits, a lattice-shaped exhaust hole formed in a lattice shape in the longitudinal direction and the transverse direction may be used. As shown in FIG. 4, a cylindrical dust collecting plate 7 is vertically provided from the periphery of the exhaust hole toward the inside of the housing body, and the dust collecting plate is positively charged to collect dust such as pollen charged as negative ions. The details are not shown, but the upper surface portion 4 can be removed from the main body of the air cleaning device using screws or the like, and the cylindrical dust collecting plate 7 can also be removed from the upper surface portion 4 to remove dust particles such as pollen collected. .

4 shows the internal structure of the corona discharge type air cleaning device, FIG. 5 shows the upper surface of the needle-shaped electrode mounting plate 8, and FIG. 6 shows 21 needle-shaped electrodes equally arranged on the upper surface of the needle-shaped electrode mounting plate 8. The conductive pattern 10 conducting in the mounting position 9. As shown in FIG. 4, the base of the needle-shaped electrode 11 is fixed to the needle-shaped electrode mounting position 9 of the needle-shaped electrode mounting plate 8 by solder or the like, and the front end extends toward the inside of the cylindrical dust collecting plate 7 as required. The distance is opposite to the circular exhaust hole 3 of the upper surface portion 4, The needle electrode mounting plate 8 is supported on the bottom plate of the air cleaning device 1 by the support legs 12.

In FIG. 4, 13 is an external power supply terminal, 14 is an adapter that changes an AC voltage of 100V to a DC voltage of about 12V, and 15 is a transformer that changes a DC voltage such as 12V to a high voltage of 7KV to 8KV. The voltage is applied to the needle electrode 11 at the needle electrode mounting position 9 via the conductive pattern 10. The DC high-voltage current unit c includes a transformer 15.

By applying a high voltage between the plurality of needle-shaped negative electrodes and the positive electrode including the exhaust holes, a corona discharge can be generated between the exhaust holes of the housing body and the front ends of the plurality of needle-shaped electrodes, Ions and ozone are generated and negative ion wind is formed toward the positive electrode. The surrounding air is drawn into the body of the housing toward the exhaust hole, so that the fine dust contained in the air adheres to the dust collecting plate of the positive electrode for sterilization. disinfect.

[Example]

The following air purification performance test was performed on the following corona discharge type air purification device created by the new model. Regarding 2, 3, and 4, it will be implemented at the Saito Institute of the Japan Food Analysis Center (No. 41, No. 41, 7-machi, Asagi, Ibaraki, Tokyo).

1. Removal performance evaluation test for planktonic bacteria (S. epidermidis)

2. Pollen removal performance evaluation test

3. Deodorization effect test (ammonia and hydrogen sulfide)

Specimen (tested corona discharge type air cleaning device created by this new model)

1. Corona discharge air cleaning device

(1) The external shape of the shell is 10cm×10cm×10cm cubic shape

(2) The shell wall thickness is 1.5mm

(3) Shell material titanium

(4) Circular vent holes are provided at equal intervals in parallel slits of vent holes with a diameter of 70 mm (slit 8 mm wide, distance between slits 4 mm)

(5) Cylindrical dust collector 70mm in diameter and 10mm in height

(6) 21 needle-shaped negative electrodes, arranged at equal intervals corresponding to the exhaust holes, the distance between the needle-shaped electrode and the positive electrode is 8mm ~ 10mm (see Figure 4)

(7) Adapter (convert AC voltage to direct current (DC) 12V)

(8) High voltage transformer (transform DC12V into high voltage electricity 7000V~8000V)

(9) Conductive patterns for needle electrodes (see Figure 6)

1. Removal performance evaluation test for planktonic bacteria (staphylococcus)

(1) Test summary

Refer to JEM1467 Household Air Purifier (Amended on March 25, 2015) Attachment D (Regulation) "Research on the Evaluation of the Removal Performance of Planktonic Viruses" of the Japan Electrical Machinery Industry Association. Among them, the test microorganisms were carried out by changing the culture conditions using the strains shown below. Staphylococcus epidermidis NBRC 12993 (Staphylococcus epidermidis). The measurement conditions are shown in Table 1, and the temperature and humidity at the start and end of the measurement are shown in Table 2.

(2) Measurement results

The measurement results of the viable cell count of the gelatin filter are shown in FIG. 7 and Table A, and the measurement results of the number of floating particles in the case of natural attenuation and sample operation are shown in FIGS. 8 and 9, respectively.

[Table A]

As can be seen from FIG. 7, Table A, FIG. 8, and FIG. 9, regarding the number of staphylococci, it is known that the corona discharge type is significantly reduced by the operation of the specimen as compared with the reduction caused by natural attenuation. The air cleaning device has very high removal performance for bacteria (staphylococcus) floating in the air.

2. Pollen removal performance evaluation test

(1) Test summary

Refer to JEM1467 Household Air Purifier (Amended on March 25, 2015) Attachment D (Regulation) "Research on the Evaluation of the Removal Performance of Planktonic Viruses" of the Japan Electrical Machinery Industry Association. Among them, cedar pollen extract was used as the test object, and the test conditions were changed and implemented. The test conditions are shown in Table 3, and the temperature and humidity at the start and end of the test are shown in Table 4.

(2) Measurement results

The measurement results of Cryjl (cedar pollen allergen) concentration are shown in FIG. 10 and Table B. In addition, the measurement results of the number of floating particles in the measurement of the natural attenuation and the operation of the specimen are shown in FIGS. 11 and 12, respectively.

[Table B]

As can be seen from FIG. 10, Table B, FIG. 11, and FIG. 12, regarding the number of floating pollen particles, it is known that the corona discharge is significantly reduced by the operation of the specimen as compared with the reduction caused by natural attenuation. The type air cleaning device has very high removal performance for pollen particles floating in the air.

3. Deodorization effect test (ammonia and hydrogen sulfide)

(1) Test summary

The deodorizing effect of ammonia and hydrogen sulfide on the specimen was tested by the gas detection tube method.

(2) Test method

a) Samples and appliances

Dryer (about 109L) [Fine]

Ammonia: Use gas generated from ammonia water (28%, premium grade) (Xiaozong Chemical Co., Ltd.).

Hydrogen sulfide: use of iron (II) sulfide (for hydrogen sulfide generation) (small chemical Commodity Co., Ltd.) Gas generated by adding dilute sulfuric acid

Gas detection tube (Gastec Co., Ltd.)

b) Operation

The specimen was placed in a dryer (approximately 109 L) together with the stirring fan, and the stirring fan was operated to add the test object gas so as to become the set gas concentration. The stirring fan was stopped to operate the specimen, and the gas concentration in the dryer was measured with the gas detection tube over time. In addition, the same operation is performed without operating the specimen. The case where the same operation was performed without placing the specimen was set as a blank test. Table 5 shows the test conditions.

(3) Test results

The test results of ammonia are shown in FIG. 13 and Table C, and the test results of hydrogen sulfide are shown in FIG. 14 and Table D.

[Table C]

As can be seen from FIG. 13 and Table C, regarding ammonia deodorization, it is known that the ammonia deodorization effect is high by operating the sample, and from FIG. 14 and Table D, it is found that the hydrogen sulfide removal performance is very high.

4. Evaluation test of cigarette dust removal performance

The cigarette dust removal performance evaluation test was carried out as follows. In a sealed box measuring 750 mm in width × 350 mm in depth × 300 mm in height, one cigarette was ignited and placed until it was completely burned. The measurement was started, and the cigarette dust concentration was measured every 3 minutes . As a testing machine, Shibata Science Co., Ltd. was used Manufactured "Digital Dust Meter P-5H". The test result data of cigarette dust removal performance is shown in FIG. 15.

As is known from the test result data of cigarette dust removal performance, the concentration of cigarette dust hardly decreases within 30 minutes in the case of natural attenuation. In contrast, when using the air purification device created by the new model, it is clear that the cigarette dust The concentration drops to a very low level after 12 minutes.

[Industry availability]

The corona discharge air cleaning device created by this new model is due to the collection of floating bacteria, pollen removal, deodorization effects (ammonia and hydrogen sulfide), cigarette dust removal performance, etc. Sterilization. The disinfection performance is excellent, so the industrial applicability is great.

7: Dust collector

8: Needle electrode mounting plate

11: needle electrode

12: Support legs

13: External power supply terminal

14: DC voltage adapter

15: Transformer

c: DC high voltage current unit

Claims (1)

An air cleaning device is a corona discharge type air cleaning device including the following parts: a housing body having an air suction port and including an upper surface portion formed of titanium; a positive electrode formed by the upper portion formed on the housing body A plurality of slit-shaped holes or lattice-shaped holes in the surface portion are formed of exhaust holes, and the positive electrode has a thickness of about 1.5 mm; a cylindrical dust collector plate from the periphery of the exhaust holes The upper surface portion is vertically arranged toward the inside of the housing body and is positively charged; a plurality of needle-shaped electrodes are stainless steel needle-shaped electrodes that are a plurality of negative electrodes facing the positive electrode, and the plurality of The front end of the needle electrode faces the positive electrode; and the DC high voltage current unit receives a DC low voltage voltage to generate a DC high voltage, applies a DC high voltage to the plurality of needle electrodes, and A high DC voltage is applied between the plurality of needle electrodes to generate a corona discharge between the negative electrode and the positive electrode, generating ozone and ions and forming a negative ion wind toward the positive electrode to remove the surrounding air It is drawn into the casing body toward the exhaust hole, and the fine dust contained in the air is attached to the positively charged dust collecting plate, and is sterilized and deodorized.

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