JPH03237981A - Apparatus for detecting excessive ozone - Google Patents

Abstract

PURPOSE:To perfectly prevent an ozone leak and to secure safety by providing electric connection terminals to both ends of a fuse having conductivity formed from a composition prepared by kneading carbon or a metal powder with a material easy to deteriorate by ozone and having rubber elasticity and applying tensile force to the fuse by correcting holders to fix the same. CONSTITUTION:An excessive ozone detector 22 consists of correcting holders 19 applying tensile elastic force to a fuse 16, which is composed of a material having conductivity prepared by kneading carbon or a metal powder with a material having rubber elasticity such as nitrile/butyl rubber easy to deteriorate by ozone, to support the reinforcing terminals 17 at both ends of the fuse 16 in a continuity state by rivets 18 and positioning the revets at interval longer than the natural length of the fuse 16 to apply tensile force to the fuse 16 and the substrate 21 supporting the correcting holders 19 and having connection terminals 20. When ozone passes through the fuse 16, the fuse generates deterio ration to be broken and the high voltage power supply 23 connected to the fuse is stopped.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is incorporated to ensure the safety of a deodorizer that uses ozone to remove unpleasant odors from kitchen waste storage cabinets that store food waste, etc. Related to excessive ozone detection device.

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 begin to rot and emit a foul odor. The stench fills the kitchen and makes people feel uncomfortable.Also, even if you leave the kitchen waste storage outside, when you open the lid, it emits a bad smell and makes you feel disgusted, making your life much less comfortable. Create a cause of obstruction.

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 and require frequent replacement with new adsorbents, resulting in high running costs and labor-intensive methods. I had an issue.

Additionally, masking methods using fragrances and other air fresheners mask the bad odor with other odors, and some individuals may perceive the odor as a bad odor, which 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, and the high-temperature process also oxidizes nitrogen in the air, producing toxic nitrogen oxides. There were other issues.

In order to solve the above problems, recently
As in Publication No. 351, an ozonizer is used by applying a high voltage.
generates ozone, oxidizes and decomposes bad odors,
A method of deodorizing has been devised.

Problems to be Solved by the Invention However, in the above-mentioned Japanese Utility Model Publication No. 60-24351, when the ozone decomposition ability of the ozone decomposition catalyst decreases, excess ozone leaks out of the deodorizer. Not only does ozone emit a unique odor, but when the concentration exceeds 0.1 ppm, it can damage the eyes and respiratory organs and have a negative impact on the human body. In other words, there is a risk that ozone may leak out of the deodorizer, and no consideration has been given to safety.

In view of the above problems, the present invention provides an excessive ozone detection device that detects ozone and turns off the ozonizer when the ozone decomposition ability of the ozone decomposition catalyst decreases and excessive ozone leaks. It is something to do.

Means for Solving the Problems In order to solve the above problems, the excessive ozone detection device of the present invention is made by kneading carbon, metal powder, etc. into a rubber elastic material such as nitrile butyl rubber, which is easily deteriorated by ozone, to make it conductive. It is constructed by applying a tensile force to the fuse made of a material that is held in place, and applying a tensile force to the electrical connection terminals at both ends of the fuse and fixing it by applying a tensile force with a correction holder.

Effect of the present invention With the above-described configuration, when ozone is mixed in the atmosphere in which the excess ozone detection device is installed, the ozone deteriorates the fuse and causes crazing, and the fuse is subjected to a tensile elastic force by the correction holder. Therefore, the fuse breaks, and the electrical connection between the terminals at both ends of the fuse becomes disconnected. That is, by connecting the excess ozone detection device to the input power source of the ozone deodorizer, when ozone leaks, the excess ozone detection device detects ozone and stops the ozone deodorization device. Therefore, high concentration ozone is prevented from leaking and safety is improved.

Embodiment Figures 1 to 4 show an ozone-type deodorizing kitchen waste storage cabinet equipped with an excess ozone detection device according to an embodiment of the present invention.
This will be explained with reference to the diagram.

Reference numeral 1 denotes a storage with a deodorizing function, which is composed of an opening/closing lid 3 that opens and closes an opening 2, an outer box 4, and a grooved flange 5.

In the interior 6 of this kitchen waste storage 1, there are commercially available polyethylene bags 7.
The inner box 9 is clamped and inserted with the clamp ring 8, alumina is used as the dielectric 10, and Z r is placed on the discharge electrode 11 side.
B2 material, an ozonizer 13 using Ruthenia material that also serves as a heater for the induction electrode 12, an ozone decomposition catalyst 14 that also serves as a deodorizer and whose main components are titanium oxide and manganese oxide, an exhaust fan 15, and ozone. A conductive fuse 16 made of Nitricuff 3 chill rubber that easily deteriorates,
Connect the reinforcing terminals 17 at both ends of the fuse 16 with screws 18.
and a correction holder 19 that applies a tensile force to the fuse 16 by placing the screws 18 apart at a distance longer than the natural length of the fuse 16, and a correction holder 19 that supports the correction holder 19 and is located at a position corresponding to the reinforcing terminal 17. and an excess ozone detection device 22 consisting of a base m21 having a connection terminal 20 at the top thereof.

The ozonizer 13 is electrically connected to a high voltage generator 23 so that an AC high voltage is applied between the discharge electrode 11 and the induction electrode 12. The induction electrode 12 is placed on the ground side, and can also be used as a heater by applying a voltage of about 100V in a separate circuit.

The resistance value of the heater at this time was set to about 8 Ω, and the surface temperature was set to about 40°C.

Further, the excess ozone detection device 22 is arranged in the primary power supply circuit of the high voltage generator 23 and is installed between the ozone decomposition catalyst 14 and the exhaust fan 15.

Furthermore, a screen 26 is provided at the air intake port 25 to the ozone generator 24 in which the ozonizer 13 is incorporated to prevent dust from entering.

A small intake fan 27 is attached to the center of the opening/closing M3, which sucks outside air through the intake port 28 and blows the outside air onto the kitchen waste placed in the bottom of the polyethylene bag 7 of the inner box 9. It is. Furthermore, by forming a flange edge 29 narrower than the opening edge of the inner box 9, the top flange 5 allows the odor inside the inner box 9 to pass through the duct 30 formed by the inner box 9 and the outer box 4 to the air intake port 25. It is designed to lead to. Note that 31 is a power cord.

The operation of the deodorizing storage 1 constructed as described above will be described below with reference to FIGS. 1 to 4.

First, insert a commercially available polyethylene bag 7 into the inner box 9,
It is stopped with the crumbling ring 8 and set in a fixed position inside the storage cabinet 1 with a deodorizing function. Then, top flange 5t is tilted down and opening/closing M3 is closed. Next, plug in the power cord 31, and connect the intake fan 27, exhaust fan 15, and ozonizer.
13 is activated.

Therefore, when kitchen waste is put into the inner box 9, the intake fan 27
Outside air is sucked in through the suction port 28 and blown onto the kitchen waste placed in the bottom of the polyethylene bag 7 in the inner box 9. Kitchen waste usually undergoes oxidation and bacterial decomposition and fermentation, producing a foul odor. Moisture is essential for this rotting and fermentation, and humid conditions promote the occurrence of bad odors. However, as mentioned above, drawing relatively dry outside air into the refrigerator interior 6 using the intake fan 27 and blowing it onto the surface of the food waste not only lowers the temperature inside the refrigerator 6 but also causes the surface of the food products to become dry. This results in the formation of dry g, which also has the effect of suppressing bad odors emitted from kitchen waste.

The outside air blown onto the surface of the food waste rises along the opening edge along the side wall of the inner box 9, along with the odor, passes through the inside of the flange edge 29 and the duct 30, and enters the ozone generator 24 through the intake port 25. In the ozone generator 24, a gas mixture is generated with ozone generated from the ozonizer 13 to which a high voltage is applied by the high voltage generator 23. Ozone and odor react even in a mixed gas, oxidizing the odor and changing it to something with less odor.
Generally, reactions in gas mixtures are slow. The deodorizing effect of ozone is achieved when ozone is decomposed into oxygen and oxygen radicals, and the oxygen radicals react with malodorous components.

Therefore, most of the deodorization takes place on the surface of the ozone decomposition catalyst 14. Moreover, since excess ozone is decomposed by the catalyst 14 and changed into oxygen, no ozone remains in the gas exhausted by the exhaust fan 15.

However, if exposed to ozone for a long time, the ozone resolution deteriorates over time, and the lifespan of zero resolution, in which ozone remains in vesicles in the exhausted gas, is It changes depending on temperature and humidity, so it is affected by usage conditions. Not only does ozone emit a unique odor, but when the concentration exceeds O.ippm, it damages the eyes and respiratory organs, and is harmful to the human body! :It will be 8 years old. Therefore, it is necessary to suppress ozone leakage as much as possible, but in the case of the present invention, the high voltage generator 2
By turning off the power in step 3, ozone leakage is prevented and safety is maintained.

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 100V AC voltage using the induction electrode 11 as a heater using a separate power supply circuit. This prevents 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, a commercial voltage of 100V was applied, and the surface temperature was set to 40°C. The outside temperature at that time was 20°C. Ozonizers usually generate ozone by applying high voltage.
In this case, the amount of ozone generated changes depending on the temperature and humidity at that time. That is, when a high voltage generator that generates a constant high voltage is used, the ozone concentration changes significantly depending on temperature and humidity, and the concentration change is about three times that in summer and winter. This excess ozone shortens the life of the ozone decomposition catalyst and increases the probability that ozone will leak outside the storage.

In one embodiment of the present invention, an excess ozone detection device 21 is installed between the ozone decomposition catalyst 14 and the exhaust fan 15, so even if ozone passes through without being decomposed by the ozone decomposition catalyst 14, the ozone The high voltage power supply 23 is stopped in order to stop the generation of ozone so that ozone does not leak outside the storage. This excess ozone detection device 22 applies a tensile elastic force to a fuse 16 made of a material with rubber elasticity such as nitrile butyl rubber that is easily deteriorated by ozone and made conductive by kneading carbon, metal powder, etc.
Since the reinforcing terminals 17 at both ends are connected in a conductive state, if ozone passes through the fuse, the fuse will deteriorate and break, resulting in a disconnection state and the connected high voltage power supply 23 will stop. .

Next, when the open lid 8 is opened, the intake fan 27 stops. Although this has been dried and the concentration has become low, the 6
This is to avoid stirring up the bad odor and scattering it from the opening 2. However, since the exhaust fan 15 continues to operate, the pressure inside the refrigerator 6 is reduced, and outside air is introduced through the opening 2.
Most of the bad odor inside the refrigerator 6 is passed through the flange edge 29 of the top flange 5 from the opening edge of the inner box 9 into the duct 3.
It enters the intake port 25 from 0. Therefore, scattering of bad odor from the opening 2 can be avoided as much as possible.

In this example, the displacement was 50 L/min.

Effects of the Invention As described above, the excessive ozone detection device of the present invention is made by kneading carbon, metal powder, etc. into a conductive material such as nitrile butyl rubber, which is easily deteriorated by ozone, to make it conductive. It consists of a fuse made of material and the electrical connection terminals at both ends of the fuse that are fixed with straightening holders and a tensile force is applied.This excess ozone detection device is inserted into a high-voltage power supply and the ozone deodorizer is operated. 0 by installing it behind the ozone decomposition catalyst. lppm
When ozone with a concentration above the concentration level passes through the system and a safety problem occurs, the power supply is shut off, completely preventing ozone leakage and ensuring safety.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the configuration of an excess ozone detection device according to an embodiment of the present invention, FIG. 2 is a sectional view similarly showing the configuration of the excess ozone detection device, and FIG. Cross-sectional view of kitchen waste storage with installed deodorizer,
FIG. 4 is a control circuit diagram of a high voltage generator controlled by the excess ozone detection device of the present invention. 16...fuse, 19...correction holder, 22...excess ozone detection device.

Claims (1)

[Claims] A fuse is made of a rubber-elastic material such as nitrile butyl rubber, which easily deteriorates due to ozone, and is made of a conductive material made by kneading carbon, metal powder, etc., and electrical connection terminals are provided at both ends of the fuse, and a correction holder is used. An excessive ozone detection device characterized by being fixed by applying a tensile force.