JPS61209665A - Deodorizing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a deodorizing device for kitchen areas, lockers, refrigerators, constant temperature food storages, and the like.

<Prior art> Generally, when food is stored in a refrigerator, various odors are emitted from the food, which may cause a feeling of disgust when the refrigerator door is opened, or the odors of other foods may transfer to the stored food, causing the food to emit various odors. It had the disadvantage of spoiling the flavor. Conventionally, activated carbon was placed inside the refrigerator and its adsorption properties were used to remove odors from inside the refrigerator.However, with this type of product, the effect ceases as soon as the amount of adsorption of the activated carbon reaches saturation. Because it will disappear,
It is difficult to determine whether the activated carbon has reached a saturated adsorption amount, and the activated carbon must be replaced every short period of time.

<Purpose> The present invention utilizes the wind speed of naturally occurring airflow or artificially generated airflow, so it is inexpensive and noiseless, and can be installed close to the source of foul odors and abnormal odors. The purpose of the present invention is to provide a deodorizing device that can provide excellent deodorizing effects over a long period of time.

<Example> An example of the present invention will be described below based on the drawings. In FIG. 1, A is a rectangular parallelepiped case formed to be portable, and an odor-containing air (odor-containing air) inflow hole 1 is bored in one side wall of the case A and the other side wall of the case A. Between the deodorized air exhaust hole 2 drilled in
An ozone reaction chamber 4 surrounded by a wall is provided with an ozone decomposition device 5 made of an ozone decomposition filter having a honeycomb structure which is removably fitted in a downward direction into a support plate 5a.

The ozone generator 3 includes a flat high voltage electrode 9 formed by bonding a borosilicate glass dielectric 7 to a stainless steel metal plate 6 with a silicon adhesive, and a flat low voltage electrode 10 made of stainless steel metal. , an air gap 11 interposed between the dielectric 7 of the high voltage electrode 9 and the low voltage electrode 10, and support frames 12a, 1.2 that support both electrodes.
It consists of 1+.

Note that the air supply device for generating air flow between the inflow hole 1 and the discharge hole 2 may be, for example, an artificial air flow generated by a fan in a refrigerator or a ventilation fan in a kitchen, or an air flow generated by natural convection. No motor-driven fan is provided to take advantage of this. Of course, a motor-driven fan may be provided if necessary.

13 is a high voltage generator for the ozone generator 3; 14 is a power plug; 15 is an overcurrent fuse; 16
is the power indicator light. 17 is a portable carrying handle provided on the outside of the side wall of case A and is swingable up and down, and 18 is a mounting bracket thereof.

19 is a high voltage lead wire, 20 is a low voltage lead wire, and 21 is a partition plate.

The electrical circuit of this deodorizing device is constructed as shown in Figure 2.
, is worn out. That is, the commercial AC power source AC includes the power indicator light 16, a transformer T1 for generating a high voltage between the high voltage electrode 9 and the low voltage electrode 10 of the ozone generator 3, resistors R1, R2, R3, capacitors C1, C2, A thyristor SCR and diodes Di and D2 are connected.

Next, to explain the operation, in Fig. 1, the odor-containing air that is artificially taken in through the odor-containing air inflow hole 1 of the refrigerator by the action of the circulation fan inside the refrigerator, or the odor-containing air that is naturally generated. When the stainless steel metal 6 having a flat plate shape and the borosilicate glass dielectric 7 are bonded and pass through the air gap 11 between the high voltage electrode 9 and the stainless steel metal low voltage electrode 10, high voltage is supplied from the high voltage generator 13. A stable silent discharge is generated by the high voltage in the form of pulses = 3-, and the oxygen contained in the odor-containing air (odor) is changed into ozone (03), and the odor components are further removed in the ozone reaction chamber 4. The unreacted ozone is decomposed into oxygen and carbon dioxide (2C+203→02+2CO2) in the ozone decomposition device 5, and this treated air is discharged into the refrigerator from the discharge hole 2.

In the above, as shown in the electric circuit of the high voltage generator 13 in FIG. 2, the capacitor C2 is charged via the resistor R1 and the diode D1 during the positive half cycle of the sine wave voltage supplied from the power source AC. Ru. Next, during the negative half cycle, capacitor C1 is charged through resistor R2, and when capacitor C2 reaches the switching voltage of thyristor SCR, a gate current flows through resistor R3.
A current flows through the high voltage transformer T, and a pulsed high voltage is generated on its secondary side, which is supplied to the electrodes 9 and 10, so that ozone is generated by discharge.

The deodorizing device of the above embodiment has the following effects.

(a) Regarding the electrode structure, since the high voltage electrode 9 is constructed by bonding the stainless steel metal plate 6 and the borosilicate glass dielectric 7, the discharge between the high voltage electrode 9 and the low voltage electrode 10 is stabilized.

(b) The use of the dielectric 7 prevents wear and tear on the electrodes, allowing long-term use.

(c) Although activated carbon has an excellent initial deodorizing effect and then rapidly decreases, the deodorizing effect of the deodorizing device of the present invention is stable.

(d) By replacing the filter ozone decomposition device 5 every long period, it can be used semi-permanently.

(e) The entire device is small, lightweight, and consumes low power.

(f) Excellent bactericidal action.

Next, we will explain the deodorizing effect of ozone, etc. on the odor concentration (malodorous components) by assuming that the inside of the refrigerator is under an actual load condition (meat, pickles, vegetables, etc. are arranged randomly). be. ' Ozone generation amount -0, 05p, p, m (MaxO, i p
, p, m) Deodorizing air speed: 0.1 to 0.3 m/s or less Filter shape of ozone decomposition device - 40 + 11 m (length), 40 mall (width), 15
The deodorizing effect of the deodorizing device under the conditions of −30+nm (thickness) and 500 cells is shown in FIG. Operate the deodorizing device and use the external fan to increase the deodorizing air volume to 6
01/min, 30ρ/Ill Ill, 5N/mi
The odor concentration was reduced from 60 to 10. As is clear from Figure 3, the deodorizing air volume is 601.
It decreased to the same level in about 1 hour for 7mln, about 3 hours for 3017mln, and about 5 hours for 517mln. The odor concentration includes malodorous components such as hydrogen sulfide, and since it is effective due to oxidative decomposition with ozone, it can also be used for the following purposes.

(,) Deodorization of sulfur-based components generated around the kitchen, (1)
) Decomposes ammonia components that occur frequently in toilets, etc. (c) Eliminates bad odors from shoe cabinets, lockers, etc. (d) Removes bad odors from small spaces, (e) No fan is required when using natural ventilation. The entire device is small and lightweight, saves power, and produces no noise.

Note that the present invention is not limited to the first embodiment, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

<Effects> As is clear from the above description, the present invention provides an air flow between the odor-containing air inlet hole and the deodorized air outlet hole that are spaced apart from each other in a part of the case. The present invention relates to a deodorizing device characterized in that an ozone generator, an ozone reaction chamber, and an ozone decomposition device are arranged in this order.

Therefore, according to the present invention, the following effects can be expected.

(,) Can remove odors from sulfur-based components that occur around the kitchen.

(b) Ammonia components, which occur frequently in toilets, can be decomposed.

(c) Removes unpleasant odors from shoe cabinets, lockers, etc.

(d) Bad odors can be removed from small spaces.

(e) Since no fan is required when using natural ventilation, the entire device is small and lightweight, saves power, and is noiseless.

(f) By replacing the filter ozone decomposition device every long period, it can be used semi-permanently.

(g) The entire device is small, lightweight, and consumes low power.

(I)) Excellent bactericidal action.

[Brief explanation of the drawing]

The drawings show a deodorizing device according to an embodiment of the present invention; FIG. 1 is an overall perspective view of the case, FIG. 2 is an electric circuit diagram, and FIG. 3 is a line diagram showing the results of an effect confirmation test. . A: Deodorizing device case, 1: Odorized air inflow hole, 2: Deodorized air exhaust hole, 3 Niosin generator, 4 Niosin reaction chamber, 5
Ozone decomposition device, 6: Stainless steel metal plate, 7
: Borosilicate glass dielectric, 9: Flat high voltage electrode, 10: Flat low voltage electrode, 11: Air gap, 13: High voltage generator, 16: Power indicator, 17: Carrying handle,
18: Mounting bracket.

Claims (1)

[Claims] An ozone generator, an ozone reaction chamber, and an ozone decomposition device are arranged in order from the inflow hole side to the discharge hole side between an odor-containing air inflow hole and a deodorized air exhaust hole that are spaced apart from each other in a part of the case. A deodorizing device characterized by: