JPH0280052A - Storage house with deodorizing function - Google Patents

Abstract

PURPOSE:To improve a deodorizing effect and durability so as to eliminate the necessity for maintenance by circulating ozone, generated in an ozonizer, in a storage house by an electrically driven fan, when an opening and closing cover is closed, and discharging air in the storage house to its outside through an ozone dissolving catalyst from the second opening part when the cover is opened. CONSTITUTION:Garbage, when placed in an inner case 9, is detected by a pressure sensor 21, and the first electrically driven fan 14 and an ozonizer 13 begin to operate. Here the first electrically driven fan 14 forms circulating air of ozone passing through a screen 23 from the inside of a storage house 6 and being irradiated to the garbage in the inner case 9 from a blow port 25 from the ozonizer 13. Next, when an opening and closing cover 3 is opened, operation of the first electrically driven fan 14 and the ozonizer 13 is stopped, when the second electrically driven fan 18 is operated, surplus ozone and air, mixing residual bad smell, in the storage house 6 are discharged to the outside of the house, passing through an ozone dissolving catalyst 17, concurrently serving for deodorization, and a screen 23'. Since the ozone dissolving catalyst 17 is formed by titanium oxide, providing a deodorizing effect, and a manganese oxide, having ability of dissolving ozone into oxygen and oxygen radical, even the surplus ozone and residual bad smell are dissolved and adsorbed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a storage cabinet with a deodorizing function that uses ozone to remove unpleasant odors from garbage and the like.

BACKGROUND OF THE INVENTION In general, if food waste such as food waste is placed in a storage cabinet and left for two to three days, it will rot and emit a foul odor. The stench fills the kitchen and makes you feel uncomfortable.
Even if such a kitchen waste storage is installed outside, the user will feel disgusted when the lid is opened, which will seriously impede a comfortable life. Possible deodorizing methods for removing these odors include a method using an adsorbent such as activated carbon, a method of masking the unpleasant odor with an aromatic agent such as a fragrance, and a method of burning at high temperature. However, methods using adsorbents such as activated carbon have excellent initial deodorizing effects, but are not sustainable, require frequent replacement, and have the problem of high running costs.

In addition, masking methods using fragrances and other fragrances mask the bad odor with other odors, and some individuals may perceive the odor as a bad odor, so it does not eliminate the root cause. . In addition, the high-temperature combustion method requires a large amount of fuel, resulting in very high running costs.The high-temperature process also oxidizes nitrogen in the air, producing toxic nitrogen oxides. There were other problems and challenges. In order to solve the above problems, recently
As disclosed in Japanese Patent No. 0-24351, a method has been devised in which ozone is generated by Ozoniger by applying a high voltage, and odor is oxidized and decomposed by ozone to deodorize the odor.

Problems to be Solved by the Invention However, in the above-mentioned Japanese Utility Model Publication No. 60-24351,
The distance between the ozonizer and the ozone decomposition filter that decomposes excess ozone is small, and ozone and bad odor cannot be reacted sufficiently, so that the deodorizing effect cannot be said to be sufficient.

In view of the above problems, the present invention provides a kitchen waste storage with a deodorizing device that can effectively deodorize food waste.

Means for Solving the Problems In order to solve the above problems, the storage with a deodorizing function of the present invention includes: a first opening having an opening/closing lid; a second opening having an ozone decomposition catalyst that adsorbs odor molecules; This is a storage with a deodorizing function that has an ozonizer that generates ozone by applying a high voltage and an electric fan.When the opening/closing lid is closed, the ozone generated by the ozonizer is circulated inside the storage using the electric fan, and when the lid is opened, the ozone is circulated inside the storage. This is a storage with a deodorizing function, characterized in that the air inside the storage is discharged from the second opening to the outside of the storage through an ozone decomposition catalyst.

Effect: With the above-described configuration, the present invention blows ozone generated by the ozonizer directly into the storage compartment when the opening/closing lid is closed, so that high-concentration ozone comes into contact with bad odors for a long time and has a long time to decompose, thereby deodorizing. The effect will be better. In addition, when the lid is opened, the air inside the storage chamber containing excess ozone is exhausted outside the storage chamber through the ozone decomposition catalyst, so the excess ozone is decomposed into oxygen and highly concentrated ozone is released into the atmosphere. It is safe to avoid. In addition, since the first opening is used as an air intake, forced exhaustion from the second opening means that there is no bad odor or excess ozone released from the first opening, and it is not only safe, but also no bad odor at all. There will be no.

Example Below, the first example of a storage with a deodorizing function according to an example of the present invention.
This will be explained with reference to the figure and Fig. 2.

Reference numeral 1 denotes a storage with a deodorizing function, which is composed of an opening/closing lid 3 that opens and closes a first opening 2, an outer box 4, and a top flange 6.

Inside the storage 6 of this storage 1 with a deodorizing function, there is an inner box 9 into which a commercially available polyethylene bag 7 is secured and inserted with a clamp ring 8, alumina is used as the dielectric 10, and Z r B 2 is placed on the discharge electrode 11 side. The induction electrode 12 is an ozonizer 13 made of ruthenium material that also serves as a heater, an ozone generator 16 consisting of a first electric fan 14, and a second opening 16 that uses oxidized titanium oxide as a carrier. It is equipped with an ozone decomposition catalyst 17 mixed with manganese that also serves as deodorizer, and an exhaust device 19 consisting of a second electric fan 18.

Note that the ozonizer 13 is electrically connected to the high voltage generator 2o, and there is approximately 2
When the AC voltage of KV is applied, the dielectric electrode 12
The side is grounded, and by applying a voltage of about 10 ov through a separate outlet, it can also be used as a heater. The resistance value of the heater at this time was set to approximately 8 Ω, and the surface temperature was set to approximately 40°C.

Further, numeral 21 is a pressure sensor that detects the weight of the inner box 9. When food waste is put into the inner box 9, it is turned on and the entire power circuit is activated.

In addition, ozone generator 1 with built-in ozonizer 13
4, a screen 22 to prevent dust from entering is installed in the second opening 1q where the intake port 22 and the exhaust device 19 are set.
is provided. Furthermore, the inside of the opening/closing lid 3 that opens and closes the first opening 2 is equipped with 2W to promote the decomposition of ozone.
An ultraviolet lamp 24 emitting a wavelength of 53.7 nm is attached.

The operation of the deodorizing storage 1 constructed as described above will be described below with reference to FIGS. 1 to 3.

First, insert the commercially available polyethylene bag 7 into the inner box 9,
It is fixed with a grapple ring 8 and set in a fixed position inside the storage cabinet 1 with deodorizing function. After passing through the top flange 6, the opening/closing lid 3 is closed. At this time, even if the power switch (not shown) is turned on, the first electric fan 14 and the second electric fan 1
8 and ozonizer 13 were not operated, and no ozone was produced. Storage cabinet 1 with deodorizing function 6, that is,
The first electric fan 14 and the ozonizer 13 are operated only when kitchen waste is put into the inner box 9 and detected by a pressure sensor 21 located at the outer bottom of the inner box 9. This is done in consideration of safety because if the ozonizer 13 is operated in an empty state, that is, if the humidity is relatively low, the ozone concentration will increase more than necessary. Normally, in the case of an ozonizer that generates ozone by applying a high voltage, the amount of ozone generated and the speed of decomposition change depending on the humidity.If even a small amount of kitchen waste is put in, the humidity in the storage compartment 6 will drop to 80~80℃. Since the relative humidity is 100%,
In the embodiment of the present invention, the concentration of dioscin generated is set by the stain pressure and frequency of the high voltage generator 2o according to the humidity at that time.

Therefore, when food is put into the inner box 9, the pressure sensor 2
1 is detected, and the first electric fan 14 and ozonizer 13 begin to operate. At this time, the first electric fan 14 forms a circulating air of ozone that is irradiated from the inside of the storage compartment 6 through the screen 23 and from the siozonizer 13 to the food waste in the inner box 9 through the outlet 25. In this example, the ozone concentration was set at a high concentration of 0.5 ppm to 1 ppm. The deodorizing effect of ozone is achieved when ozone is decomposed into oxygen and oxygen radicals, and the oxygen radicals react with malodorous components. In this embodiment, ozone gas is directly present on the surface of the kitchen waste and other parts that emit a bad odor, so that the decomposition of the bad odor is promoted. Furthermore, as a way to accelerate the decomposition of bad odors, it is possible to install an ultraviolet lamp 24 that accelerates the decomposition of ozone on the back side of the opening/closing lid 2 and irradiate ultraviolet rays to generate more oxygen radicals. Since the decomposition of ozone has already been accelerated, there is no need to use the ultraviolet lamp 23.

Furthermore, since the discharge of the ozonizer 13 tends to become unstable in a humid atmosphere, it is necessary to heat the surface of the ozonizer 13 by applying a voltage using a separate circuit to use the dielectric electrode 11 as a heater. This avoids dew condensation on the electrode surface and stabilizes ozone production in a humid atmosphere. In this example.

The resistance of the heater was set to 8Ω, and a commercial power supply of 1 ooV was applied to obtain a surface temperature of 40′Q. The outside temperature at that time was 20°C. The presence of high-concentration ozone in kitchen waste not only decomposes bad odors, but also kills bacteria on the surface of the food and slows down the rate of decomposition.

Next, when the opening/closing lid 3 is opened, the first electric fan 14 and the ozonizer 13 stop operating 9, and the second electric fan 18 starts operating. When the second electric fan 18 is operated, the air mixed with excess ozone and residual bad odor in the storage chamber 6 is discharged to the outside of the storage chamber through the screen 23' and the ozone decomposition catalyst 17 which also serves as deodorization.

Ozone Decomposition Catalyst V&17 is made of titanium oxide, which has a deodorizing effect, and manganese oxide, which has the ability to decompose ozone into oxygen and oxygen radicals, so it decomposes and adsorbs excess ozone and residual bad odors, and prevents them from being discharged outside the refrigerator. It is safe and odorless. Furthermore, since the air inside the storage 6 is exhausted through the second opening 16, the inside 6 of the storage becomes negative pressure, and air flows in from the outside through the first opening 2. Therefore, when the opening/closing lid 3 is opened, excess ozone and residual odor in the storage chamber 6 will not leak out through the first opening 2, making it safe and without causing a bad odor and impairing comfort. In addition, in the ozone decomposition catalyst 16 which also serves as a deodorizer that adsorbs odor, even if there is adsorption of odor, the adsorbed odor molecules are decomposed by oxygen radicals generated by the decomposition of excess ozone, and the ozone becomes clean.
It has a relatively long lifespan.

Effects of the Invention As described above, the present invention has a first opening having an opening/closing lid, a second opening having an ozone decomposition catalyst that adsorbs odor molecules, and an ozonizer that generates ozone by applying a high voltage. This storage is equipped with a deodorizing function and consists of an electric fan, and when the opening/closing lid is closed, the ozone generated by the ozonizer is circulated inside the storage by the electric fan, and when the lid is opened, the ozone is stored through the second opening through the diosine decomposition catalyst. This storage with a deodorizing function is characterized by discharging the air inside the storage to the outside, has a good deodorizing effect, is durable, and does not require maintenance.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a storage with a deodorizing function according to an embodiment of the present invention when the opening/closing lid is closed, Figure 2 is a cross-sectional view of the storage with the opening/closing lid open, and Figure 3 is a cross-sectional view of the storage with a deodorizing function. FIG. 1...Storage with deodorizing function, 2...1st
Opening, 3...Opening/closing lid, 13...Ozonizer-114...Electric fan, 16...
...Ozone generator, 16...Second opening, 17
...Ozone decomposition catalyst. Name of agent: Patent attorney Shigetaka Awano and 1 other person1-
Is deodorization a problem with Otomura H Bund Hako? - Listener O part 3 - Opening/closing i/3 - Osso naive - 14 - Electric J-worker fan 15 - Ozone generator 16 - 2nd opening aif IS 367 -

Claims (1)

[Claims] The first opening has an opening/closing lid, the second opening has an ozone decomposition catalyst that adsorbs odor molecules, an ozonizer that generates ozone by applying a high voltage, and an electric fan. An electric fan circulates the ozone generated by the ozonizer inside the storage compartment when the ozonizer is closed, and a second
A storage cabinet with a deodorizing function, characterized in that air inside the storage cabinet is discharged from an opening through an ozone decomposition catalyst to the outside of the storage cabinet.