CN205773321U - Chlorine dioxide generation unit and chlorine dioxide generator - Google Patents

Abstract

The utility model relates to a chlorine dioxide generating unit and a chlorine dioxide generating device. The object of this invention is to provide the unit for chlorine dioxide generation which is compact and can discharge the chlorine dioxide of sufficient quantity practically over a long period of time. The solution of the present invention is to provide a unit for generating chlorine dioxide, wherein the unit has a chemical storage unit and at least two light source units, and the light source units are used to generate chlorine dioxide substantially composed of wavelengths in the visible region. In addition, the medicine containing solid chlorite is stored in the medicine storage part, and the medicine storage part is provided with one or more The one or more openings of the drug storage part are covered by a gas-permeable sheet. Here, the drug present in the drug storage part is covered by the light source part The generated light is irradiated to generate chlorine dioxide gas.

Description

Chlorine dioxide generating unit and chlorine dioxide generating device

technical field

The utility model relates to a chlorine dioxide generating unit and a chlorine dioxide generating device. In detail, it relates to a small chlorine dioxide generating unit using a mechanism of irradiating a chemical containing solid chlorite with light of a wavelength in the visible region to generate chlorine dioxide, and a unit equipped with the chlorine dioxide generating unit. Chlorine dioxide generator. The utility model is especially suitable for being loaded on vehicles (such as self-use cars, buses, taxis, etc.) or other carrying tools (such as airplanes, trams, ships, etc.). In addition, since the unit for generating chlorine dioxide of the present invention is small, it can also be assembled in air-conditioning equipment such as a heater, air conditioner, air cleaner, and humidifier, for example.

Background technique

Conventionally, an apparatus for generating chlorine dioxide by irradiating ultraviolet rays to an aqueous solution containing chlorite, a gel containing chlorite, or the like is known (for example, Patent Document 1). However, conventional chlorine dioxide production equipment was not developed in consideration of portability, and most of them were large-scale. In addition, the conventional chlorine dioxide generators have a liquid containing chlorite or a gel containing it as the main component (chlorine dioxide generation source), and when it is intended to carry it directly, the main component will be Or the problem of waste liquid leakage. Furthermore, even if it is simply miniaturized and portable, there will be new problems caused by miniaturization, that is (the absolute amount of chlorite is insufficient), and there will be a new problem of lack of chlorine dioxide generation continuity, so it is difficult to Continue to use.

As a device that can simultaneously solve the problems of "miniaturization" and "sustained use" of chlorine dioxide generators, there is known a drug containing solid chlorite in a cartridge with a predetermined structure, and irradiates A device for generating chlorine dioxide by ultraviolet rays (Patent Document 2).

[Prior art literature]

[Patent Document]

[Patent Document 1] Japanese Unexamined Patent Publication No. 2005-224386

[Patent Document 2] WO2011/118447

Utility model content

[Problems to be solved by the utility model]

The device described in the above-mentioned Patent Document 2 is superior to conventional chlorine dioxide generators in terms of small size and sustainable use. However, from the viewpoint of using solid chlorite as a chlorine dioxide generation source, this device is not the same as irradiating ultraviolet rays on an aqueous solution containing chlorite or a gel containing chlorite to generate chlorine dioxide. Compared with the device, there is a further problem that the amount of chlorine dioxide produced is low.

[Means to solve the problem]

In the past, when chlorine dioxide was generated by irradiating light on a chemical containing solid chlorite, in order to generate chlorine dioxide more efficiently, it has been considered that among various wavelengths of light, it is necessary to use ultraviolet rays with high energy. area of light.

The inventors of the present invention have intensively studied increasing the amount of chlorine dioxide produced by a device using a chemical containing solid chlorite as a chlorine dioxide production source. As a result, it was unexpectedly found that when ultraviolet rays are irradiated on a medicament containing solid chlorite, not only chlorine dioxide, but also ozone will be generated. Since the ozone and chlorine dioxide interfere, the amount of chlorine dioxide produced as a whole is relatively small. The amount of ozone is reduced (refer to Example 1 and Figure 3 of this specification).

Based on the above findings, the inventors of the present invention have made further progress in increasing the amount of chlorine dioxide generated as a whole while suppressing the generation of ozone in a device using a chemical containing solid chlorite as a source of chlorine dioxide generation. discussion. As a result, it was found that by using light in the visible region instead of ultraviolet light, which was considered necessary when generating chlorine dioxide from solid chlorite, it was possible to successfully reduce the amount of ozone generated and increase the amount of ozone generated by the entire device. amount of chlorine dioxide.

In addition, the inventors of this case investigated the improvement of the device in order to compensate for the decrease in reactivity caused by the use of light in the visible region with lower energy than ultraviolet rays. As a result, they were surprised to find that the sub When using chlorate agents, it can "multiply" increase the production efficiency of chlorine dioxide.

Furthermore, the inventors of this case found that the medicament storage part in the chlorine dioxide generation unit of the present invention is covered with a breathable sheet, which can prevent the medicament containing solid chlorite from turning out in the medicament storage part, At the same time, ventilation prevents the agent from being excessively dry or excessively wet, so that the device can release chlorine dioxide more stably.

Through these creative approaches, the inventors of this case have completed a chlorine dioxide generation unit of the present utility model that is small and can release a practically sufficient amount of chlorine dioxide for a very long time, and a secondary unit with the unit. Chlorine Oxide Generator.

That is, the present invention, in one embodiment, relates to a unit for generating chlorine dioxide, wherein the unit is provided with a chemical storage part and at least two light source parts, and the light source parts are used to generate substantially The light having a wavelength in the visible region accommodates a drug containing solid chlorite in the drug container so that air can move inside and outside of the drug container One or more openings are provided, and the one or more openings of the drug storage part are covered by an air-permeable sheet. Here, the drug present in the drug storage part Chlorine dioxide gas is generated by irradiation of the light generated by the light source unit.

In addition, in the unit for generating chlorine dioxide according to the present invention, in one embodiment, the medicine storage part and the at least two light source parts are integrally arranged, and the at least two light source parts are used for the medicine contained in the medicine. The medicine in the container is irradiated with light from at least two directions.

Moreover, the unit for chlorine dioxide generation of this invention WHEREIN: In one Embodiment, the wavelength of the said irradiated light is 360nm - 450nm.

Moreover, in the unit for chlorine dioxide generation of this invention, in one Embodiment, the said light source part is equipped with a lamp or a chip.

Moreover, in the unit for chlorine dioxide generation of this invention, in one form, the said chip is an LED chip.

Moreover, in the unit for chlorine dioxide generation of this invention, in one Embodiment, the said light source part is a light source part which can irradiate light intermittently.

In addition, in the unit for chlorine dioxide generation of the present invention, in one embodiment, the agent containing solid chlorite is a porous substance containing (A) chlorite, and (B) Chemicals for metal catalysts or metal oxide catalysts.

Moreover, in one embodiment of the unit for chlorine dioxide generation of this invention, the said "porous substance carrying chlorite" is obtained by impregnating the porous substance with an aqueous chlorite solution and drying it.

In addition, in the chlorine dioxide generation unit of the present invention, in one embodiment, the metal catalyst or metal oxide catalyst is selected from the group consisting of palladium, rubidium, nickel, titanium, and titanium dioxide.

In addition, in the unit for generating chlorine dioxide of the present invention, in one embodiment, the porous material is selected from sepiolite, palygorskite, montmorillonite, A group consisting of silica gel, diatomaceous earth, zeolite (Zeolite), and perlite (Perlite);

The chlorite is selected from the group consisting of sodium chlorite, potassium chlorite, lithium chlorite, calcium chlorite, and barium chlorite.

In addition, in the unit for generating chlorine dioxide according to the present invention, in one embodiment, the mass of the chlorite and the metal catalyst or metal oxide catalyst in the chemical in the chemical container is The ratio is 1:0.04 to 0.8.

In addition, in the unit for chlorine dioxide generation of the present invention, in one embodiment, the porous substance further supports an alkali agent.

In addition, in the unit for generating chlorine dioxide of the present invention, in one embodiment, the alkaline agent is selected from sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium carbonate, potassium carbonate, and lithium carbonate. group.

Moreover, in the unit for chlorine dioxide generation of this invention, in one form, the molar ratio of the said chlorite in the said chemical|medical agent to the said alkali agent is 1:0.1-2.0.

In addition, in the chlorine dioxide generation unit of the present invention, in one embodiment, the "porous substance carrying chlorite and alkali agent" is impregnated with chlorite and alkali agent simultaneously or sequentially. It is derived from porous substances and dried.

Another aspect of this invention relates to the chlorine dioxide generator provided with the unit for chlorine dioxide generation as described in any one of said.

In addition, in one embodiment, the chlorine dioxide generator of the present invention is characterized by further comprising: an air blower for sending air to the chemical contained in the chemical storage part in the chlorine dioxide generating unit. department.

In addition, in the chlorine dioxide generator of the present utility model, in one embodiment, the air supply unit is a fan that introduces air from the outside of the chlorine dioxide generator, or a fan that introduces air from the chlorine dioxide generator A fan inside the generating unit releases air to the outside.

In addition, in the chlorine dioxide generator of the present invention, in one embodiment, at least one of the openings of the chemical storage unit is present on the side surface of the chemical storage unit, and the air blown from the ventilation unit At least a part of the air is delivered to the medicine through the opening existing on the side surface of the medicine container.

In addition, in one embodiment of the chlorine dioxide generator of the present invention, the relative humidity in the chemical storage unit is maintained at 30 to 80% RH by the air sent from the air supply unit.

From the point of view of the professional, arbitrary combination of one or more features of the present invention in a technically non-contradictory manner is of course included in the scope of the present invention.

[effect of utility model]

The unit for generating chlorine dioxide of the present invention and the chlorine dioxide generating device equipped with the unit can achieve miniaturization by adopting the above-mentioned structure, and can release a practically sufficient amount of chlorine dioxide for a very long time , so it can be suitable for use in, for example, vehicle loading. In addition, since the unit for generating chlorine dioxide of the present invention is small, it can also be assembled in air-conditioning equipment such as a heater, air conditioner, air cleaner, and humidifier, for example.

Description of drawings

Fig. 1 is a longitudinal sectional view showing a unit for generating chlorine dioxide in which a chemical agent containing solid chlorite is charged.

Fig. 2 is a longitudinal sectional view showing a chlorine dioxide generator incorporating the chlorine dioxide generating unit of Fig. 1 .

Fig. 3 is a graph showing changes in measured values of chlorine dioxide concentration and ozone concentration in air when light is irradiated to a chemical containing solid chlorite and the wavelength of the irradiated light is changed.

FIG. 4 is a graph showing the average value of the measured values in the ultraviolet region and the average value of the measured values in the visible region among the actual measured values of chlorine dioxide concentration and ozone concentration in FIG. 3 .

5 is a graph showing changes in the amount of chlorine dioxide generated depending on the shape of the metal catalyst or metal oxide catalyst mixed in the chemical when light is irradiated to the chemical containing solid chlorite.

Fig. 6 is a graph showing changes in the amount of chlorine dioxide produced when changing the ratio of chlorite to titanium dioxide in a chemical agent containing solid chlorite and a metal catalyst or metal oxide catalyst (titanium dioxide).

FIG. 7 shows the relationship between the content of titanium dioxide and the maximum concentration of chlorine dioxide generated by irradiation of visible light in a chemical agent containing solid chlorite and a metal catalyst or metal oxide catalyst (titanium dioxide).

Fig. 8 is a graph showing changes in the amount of chlorine dioxide produced when visible light is continuously irradiated on a chemical agent containing solid chlorite and a metal catalyst or a metal oxide catalyst (titanium dioxide) for a long time.

Fig. 9 is a perspective view, a top view, and a side view showing a unit for chlorine dioxide generation according to one embodiment of the present invention.

Fig. 10 is a schematic diagram showing a chlorine dioxide generator incorporating a chlorine dioxide generating unit according to an embodiment of the present invention.

Fig. 11 shows that in the unit for generating chlorine dioxide according to an embodiment of the present invention, the medicine in the medicine storage part is irradiated with light from only one light source part (single side) and from two light source parts (double side). Surface) Comparison of the amount of chlorine dioxide generated when irradiated with light.

Fig. 12 shows that in the unit for generating chlorine dioxide according to an embodiment of the present invention, the medicine in the medicine storage part is irradiated with light from only one light source part (single side) and from two light source parts (double side). Surface) is a graph plotting the ratio of the amount of chlorine dioxide generated when light is irradiated. When light is irradiated from two light source units (both sides), compared with when light is irradiated from only one light source unit (single side), the amount of chlorine dioxide generation is more than doubled, and the amount of chlorine dioxide generation is obtained. The ratio is twice the value of the amount of chlorine dioxide produced when using single-sided irradiation.

Fig. 13 is a diagram illustrating the comparison between when light is irradiated from two light source parts (both sides) and when light is irradiated from only one light source part (single side) in the unit for generating chlorine dioxide according to an embodiment of the present invention. Light can be efficiently made to reach the picture of the medicine in the medicine storage part.

Fig. 14 shows changes in the amount of chlorine dioxide generated when the relative humidity in the chemical storage part is changed in the chlorine dioxide generating unit according to the embodiment of the present invention. Fig. 14 shows data when light is irradiated from only one light source unit (single side).

Fig. 15 is a graph showing changes over time in the amount of chlorine dioxide generated when the relative humidity in the chemical storage part is changed in the chlorine dioxide generating unit according to one embodiment of the present invention. Fig. 15 shows data when light is irradiated from two light source parts (both sides).

Fig. 16 shows the amount of chlorine dioxide generated when light is intermittently irradiated from two light source parts (both sides) to the medicine in the medicine storage part in the unit for generating chlorine dioxide according to an embodiment of the present invention. changes over time. The so-called "10s/80s" in the figure means that the light is continuously irradiated for 2 minutes after the start of the irradiation, and the cycle of irradiating the light for 10 seconds (turning on the LED) and stopping the light for 80 seconds (turning off the LED) is repeated after 2 minutes of the start of the irradiation. Similarly, "20s/80s" in the figure means: continue to irradiate the light for 2 minutes after the start of the irradiation, repeat the irradiating light for 20 seconds (turn on the LED) and stop irradiating the light for 80 seconds (turn off the LED) 2 minutes after the start of the irradiation cycle. "30s/80s" means that the light is continuously irradiated for 2 minutes after the start of the irradiation, and the cycle of irradiating the light for 30 seconds (turning on the LED) and stopping the light for 80 seconds (turning off the LED) is repeated 2 minutes after the start of the irradiation.

Fig. 17 is an embodiment showing a structure in which the chemical storage portion of the chlorine dioxide generating unit of the present invention is covered with an air-permeable sheet.

Fig. 18 shows that in the chlorine dioxide generating device assembled with the medicament containing part described in Fig. 17, most of the air flowing through the device flows in a manner of sweeping the surface of the medicament containing part, and only a part of the air flows on the surface of the medicament containing part. Chlorine dioxide can be released stably by moving back and forth between the inside and outside of the chemical storage part.

Wherein, the reference signs are explained as follows:

10, 21, 30 Chlorine dioxide generation unit

11, 32, 42 Chemical container

12, 34 LED chips

13 Operating the Base Board

14 potions

15 tubes

16 opening

20, 40 Chlorine dioxide generator

22 Device body

23 Air supply port

24 fans

25 Air outlet

31 Gas generation port

33 Electronic Substrates

35 Exterior Department

36 Gas inlet

41 LED chip mounted substrate

43 Frame

44 Blower fan

51 transparent resin board

52 Drug container

53 breathable sheet

54 LED chip mounted substrate

55 Drug container

56 Blower fan.

detailed description

In one embodiment, the present invention relates to a unit for generating chlorine dioxide. The unit includes a chemical storage unit and at least two light source units, and the light source units are used to generate In the configuration, a medicine containing solid chlorite is stored in the medicine storage part, and one or more is provided in the medicine storage part so that air can move inside and outside the medicine storage part. A plurality of openings, wherein the one or more openings of the drug storage part are covered with an air-permeable sheet, and here, the drug present in the drug storage part is emitted by the light source Chlorine dioxide gas is generated by irradiation of the light generated by the unit.

In the chlorine dioxide generating unit of the present utility model, there are at least 2 light source parts (for example, 2, 3, 4, 5, 6 or more light source parts), the positional relationship of the at least 2 light source parts, as long as it is There is no particular limitation on the chemical agent that generates chlorine dioxide as long as it is irradiated with light from at least two directions (for example, 2, 3, 4, 5, 6 or more directions). Preferably, at least two light source units are arranged at symmetrical positions around the chemical agent that generates chlorine dioxide.

As long as the light source used in the present invention can emit light in the visible region alone or including light in the visible region, conventionally known light sources can be used. Therefore, the wavelength of the light produced by the light source used in the present invention is not limited to the wavelength of light in the visible region (360nm to 830nm), but can also include the wavelength of light in the ultraviolet region (below 360nm) and light in the infrared region. Light with a wavelength (above 830nm). However, when a chemical containing solid chlorite is irradiated with light of a wavelength in the ultraviolet region, ozone is easily generated as a by-product. Chlorate agents also produce less chlorine dioxide. Therefore, it is preferable that the light generated by the light source used in the present invention is substantially composed of light having a wavelength in the visible region. The light generated by the light source used in the present invention is preferably light with a wavelength of 360nm to 450nm, more preferably light with a wavelength of 380nm to 450nm or 360nm to 430nm, and most preferably light with a wavelength of 380nm to 430nm.

The wavelength of the light generated by the light source is substantially included in the range of the specific wavelength range, which can be confirmed by measuring the wavelength or energy of the light generated by the light source with a generally known measuring device.

The light source used in the present invention is not particularly limited as long as it can generate light of a wavelength in the visible range, for example, various lamps (incandescent lamps, LED lamps), chips, laser devices, etc. . From the viewpoint of directivity of light generated by the light source, and from the viewpoint of downsizing the device, the light source is preferably in the form of a chip. The light source in the form of a chip has narrow directivity, so the light does not diffuse, and the light can be efficiently irradiated on the object to be irradiated, thereby improving the chlorine dioxide generation efficiency of the device. Furthermore, from the viewpoint of limiting the wavelength of light generated by the light source so as not to contain light in the ultraviolet region or infrared region, the light source is preferably an LED that generates light in the visible region. In particular, from the standpoint of miniaturization of the device and the standpoint of chlorine dioxide generation efficiency, the light source used in the present invention is preferably an LED chip that generates light in the visible region.

In addition, the light source used in the present invention may also be a light source capable of irradiating light intermittently. For example, the light source used in the present invention may be a light source that repeats a cycle of irradiating light for a certain period of time and then stopping the irradiation of light for a certain period of time. The method of controlling the light source for intermittently irradiating light is not particularly limited, and methods generally known to those in the industry can be used for implementation.

In the chlorine dioxide generating device of the present invention, the light source unit and the medicine storage unit can be arranged integrally or separately, but in order to efficiently irradiate the medicine contained in the medicine storage unit with the light generated by the light source unit, it is preferable to arrange it integrally. . Here, the light source unit and the drug storage unit may be integrally arranged or connected in an inseparable form, or integrally arranged or connected in a detachable form. When the light source part and the medicine containing part are integrally arranged or connected in a detachable manner, the medicine containing part can be a replaceable cartridge.

The medicine containing part used in the present invention is not limited as long as it has one or more openings so that air can move inside and outside. For example, the material of the drug containing portion (especially the surface of the drug containing portion that is directly irradiated by the light from the light source portion) can be constituted as a generally known light-transmitting material, whereby the light irradiated by the light source portion can be irradiated to the The medicine inside the medicine container. Preferably, the material of the drug container is made of a resin that substantially transmits light in the visible region, so that the light generated by the light source can be irradiated to the drug inside the drug container without being absorbed by the resin. In this specification, the resin that can substantially transmit the light of the wavelength in the visible region is, for example, the resin that allows 80% or more of the light of the wavelength of the visible region to be irradiated. The resin that transmits 90% or more of light having a wavelength is more preferably a resin that allows 95% or more of irradiated light having a wavelength in the visible region to pass through. Specifically, the material of the surface directly irradiated with the light from the light source part in the drug storage part can be made of acrylic, vinyl chloride, or PET, but is not particularly limited thereto.

In addition, for example, the drug storage part may be constituted by a mesh plate having a mesh to such an extent that the content does not fall. According to this structure, the air outside the medicine storage part can move inside and outside the medicine storage part, and the light generated by the light source part can be irradiated to the medicine inside the medicine storage part through the mesh.

In addition, in the present invention, one or more openings of the medicine storage part are covered with an air-permeable sheet. In this specification, "breathable sheet" refers to a sheet-like structure that allows gas (such as air, gas, moisture, etc.) to pass through, but does not substantially pass solid substances (such as powdery objects, granular objects) . The "air-permeable sheet" in the present invention may further have the property of substantially impermeable passage of liquid (for example, water droplets). Although the material of the air-permeable sheet in the present invention is not limited, for example, it can be exemplified as a material in which fibers are bonded or intertwined through heat/mechanical or chemical action, and a microporous film (with a large number of very small Porous material film) alone or laminated multiple sheets of material, or non-porous material that allows gas, air or moisture (water vapor) to move, exerts a strong force on high-density fabrics Water-repellent coating material, or a material formed by combining these materials. More specifically, as the breathable sheet in the present invention, for example, non-woven fabrics (ELEVES (registered trademark, manufactured by Unitika Co., Ltd.), AXTAR (registered trademark, manufactured by TORAY Corporation), etc.), GORE-TEX ( Registered trademark) and EXEPOL (registered trademark, manufactured by Mitsubishi Plastics Co., Ltd.: a combination of microporous polyolefin is a material with excellent air permeability/moisture permeability/water resistance for films and various nonwoven fabrics), EntrantE (registered trademark, manufactured by TORAY Corporation), etc. . In addition, in the present invention, the air-permeable sheet is desirably provided with heat-sealability (heat-melting property) in order to be easily attached to the drug storage portion.

The shape and thickness of the air-permeable sheet used in the present invention, as long as the air-permeable sheet can reach the boundary between the inside and the outside of the medicine containing part "to allow gas, air or moisture to pass through, but objects larger than a certain size cannot By the purpose of ", those with ordinary knowledge in the technical field can appropriately select. For example, when using a non-woven fabric as an air-permeable sheet, a mesh of 15 to 120 g/m ² (preferably 40 to 100 g/m ² , more preferably 50 to 80 g/m ² ) and a thickness of 0.1 to 1.0 mm (preferably 0.2 to 0.5mm, more preferably 0.2 to 0.4mm).

As for the chlorite used in this invention, an alkali metal chlorite or an alkaline earth metal chlorite is mentioned, for example. Examples of alkali metal chlorite include sodium chlorite, potassium chlorite, and lithium chlorite, and examples of alkaline earth metal chlorite include calcium chlorite, magnesium chlorite, and barium chlorite. Among them, sodium chlorite and potassium chlorite are preferable, and sodium chlorite is most preferable from the viewpoint of easy acquisition. These chlorites can be used individually by 1 type or in combination of 2 or more types.

The solid chlorite used in the present invention can be carried on a porous substance.

In the present invention, the solid chlorite is carried on the porous material, and reacts with light on the surface of the porous material, thereby, compared with the state of directly using the solid chlorite, it can be Less energy initiates the reaction. That is, in the present invention, chlorine dioxide can be generated more efficiently by carrying solid chlorite on a porous substance and using it. The porous material used in the present invention can for example use sepiolite (Sepiolite), palygorskite (Palygorskite), montmorillonite (Montmorillonite), silica gel, diatomaceous earth, zeolite (Zeolite), and pearl In order not to decompose chlorite, Perlite is preferably a substance that exhibits alkalinity when suspended in water, particularly preferably palygorskite and sepiolite, and particularly preferably sepiolite.

In the present invention, the method of supporting chlorite on a porous substance is not particularly limited. For example, the "porous substance carrying chlorite" can be obtained by impregnating a porous substance with an aqueous chlorite solution and drying it. The water content of the "porous substance carrying chlorite" is preferably 10% by weight or less, more preferably 5% by weight or less.

The "porous substance carrying chlorite" used in the present invention can use any particle size, especially preferably with an average particle size of 1 mm to 3 mm.

The average particle diameter of the "porous substance carrying chlorite" of the present invention can be measured by an optical microscope, for example, and the particle diameter of the "porous substance carrying chlorite" used can be counted Calculated by processing and calculating the mean and standard deviation.

The concentration of chlorite in the "porous substance carrying chlorite" used in the present invention is effective at a concentration of 1% by weight or more, but when it exceeds 25% by weight, it is equivalent to a violent substance, so it is preferably 1% by weight to 25% by weight, particularly preferably 5% by weight to 20% by weight.

The "agent containing solid chlorite" used in the present invention may further contain a metal catalyst or a metal oxide catalyst. For example, the "agent containing solid chlorite" used in the present invention may be an agent comprising (A) a porous substance carrying chlorite, and (B) a metal catalyst or a metal oxide catalyst.

Examples of the metal catalyst or metal oxide catalyst used in the present invention include palladium, rubidium, nickel, titanium, and titanium dioxide. Among these, titanium dioxide is particularly preferred. Titanium dioxide is sometimes just called titanium oxide or titanium white (Titania). The metal catalyst or metal oxide catalyst used in the utility model can be in various forms such as powder, granular, etc., and the industry can choose the appropriate one through the mixing ratio of chlorite in the medicament and the metal catalyst or metal oxide catalyst. preferred form. For example, when the ratio of metal catalyst or metal oxide catalyst in the medicament is relatively high, granular metal catalyst or metal oxide catalyst can be selected; when the ratio of metal catalyst or metal oxide catalyst in the medicament is relatively low, powder can be selected. Shaped metal catalyst or metal oxide catalyst, but not limited to these.

In this specification, the approximate standard of the size of "powder" or "granule", for example, powder refers to a solid with an average particle diameter of 0.01 mm to 1 mm, and granular refers to a solid with an average particle diameter of 1 mm to 30 mm. However, it is not particularly limited.

The mass ratio of chlorite and metal catalyst or metal oxide catalyst in the medicament used in the present invention can be chlorite: metal catalyst or metal oxide catalyst=1:0.04 to 0.8, preferably 1:0.07 to 0.6, preferably 1:0.07 to 0.5. In chemicals, when the content of metal catalyst or metal oxide catalyst is higher than 1 times the content of chlorite, and when the content of metal catalyst or metal oxide catalyst is less than 0.04 times the content of chlorite, it is produced when irradiating visible light The amount of chlorite may be reduced.

The "porous substance carrying chlorite" used in the present invention can also carry alkali agent.

The alkali agent used in the preparation of the medicament of the present invention can use sodium hydroxide, potassium hydroxide, lithium hydroxide, cesium hydroxide, rubidium hydroxide, sodium carbonate, potassium carbonate, and lithium carbonate, preferably hydrogen sodium oxide. By also carrying the alkali agent on the "porous substance carrying chlorite", the pH of the chemical used in the present invention can be adjusted, the stability of the chemical itself can be improved, and it can be stored without irradiating light, etc. Suppresses unwanted release of chlorine dioxide.

The amount of the alkali agent used in the preparation of the medicament of the present invention is preferably not less than 0.1 equivalent and not more than 2.0 equivalent relative to the chlorite (mol), preferably not less than 0.1 equivalent and not more than 1.0 equivalent, more preferably not less than 0.1 equivalent Below 0.7 equivalent. When it is less than 0.1 equivalent, the supported chlorite may decompose at normal temperature. When it exceeds 2.0 equivalent, although the stability can be improved, it is difficult to generate chlorine dioxide, which reduces the concentration, so it is not good.

In the preparation of the medicament of the present invention, the method of carrying the alkali agent on the "porous substance carrying chlorite" is not particularly limited. For example, chlorite and alkali agent can be used simultaneously or sequentially. A method of impregnating a porous substance and drying it. In this specification, the target composition is obtained by "spray adsorption" of chlorite aqueous solution and/or alkali agent on a porous substance and drying, but in this specification, the term "spray adsorption" is also included in the term "impregnation". ".

In one embodiment, the present invention can be constituted as a chlorine dioxide generating device provided with the chlorine dioxide generating unit of the present invention. The chlorine dioxide generator of the present invention may further include: an air supply unit that sends air to the medicine accommodated in the medicine storage unit in the unit for chlorine dioxide generation. The blower may be a fan that introduces air from the outside of the device to the inside, or a fan that discharges air from the inside of the device to the outside.

In the chlorine dioxide generating device of the present invention, the air supply unit that sends air to the medicine accommodated in the medicine storage unit may be, for example, a fan or an air pump, but is preferably a fan. By providing the blower unit, more air can be supplied to the medicine inside the medicine storage unit. By supplying more air to the agent, the frequency of contact between the agent containing solid chlorite and the moisture (water vapor) in the air can be increased, and it is easy to generate carbon dioxide from the solid chlorite after being irradiated with light. chlorine.

In the chlorine dioxide generating device of the present utility model, the relative humidity in the medicament containing part can be adjusted at 30 to 80% RH (preferably 40 to 70% RH, more preferably 40 to 60% RH). The amount of chlorine dioxide produced can be increased by adjusting the relative humidity in the chemical storage unit within the above range.

In addition, in the chlorine dioxide generating device of the present invention, as another method of supplying water vapor in the air to the chemical storage part, a thermoelectric conversion element (thermoelectric conversion effect) that condenses and concentrates moisture in the air can also be applied (also It can be used in reverse to increase the humidity due to the intrusion of water vapor or the disadvantage of the thermoelectric conversion element caused by condensation).

The control method of the relative humidity in an apparatus is not specifically limited, It can implement suitably using the technique generally known to the said industry. For example, a hygrometer for measuring humidity is installed inside the device body, and the relative humidity is controlled by adjusting the air supply volume from the air supply unit while monitoring the moisture content, or adjusting the moisture absorption by the thermoelectric conversion element.

In addition, since the unit for generating chlorine dioxide of the present invention is small, it can also be incorporated into home appliances and the like whose main purpose is not to generate chlorine dioxide. A device in which the unit for generating chlorine dioxide of the present invention is incorporated into a household electrical appliance whose main purpose is not to generate chlorine dioxide is also included in the "chlorine dioxide generating device" of the present invention. For example, by assembling the unit for generating chlorine dioxide of the present invention in air-conditioning equipment such as heaters, air conditioners, air purifiers, humidifiers, etc., the chlorine dioxide can be promoted by the effect of the wind released from the air-conditioning equipment. Chlorine dioxide is generated in the generation unit and efficiently diffuses chlorine dioxide into the space along with the wind released from the air conditioning equipment into the space.

The terms used in this specification are used to describe specific embodiments, and are not used to limit the present utility model.

In addition, the term "comprising" used in this specification intentionally points out the existence of the stated items (members, steps, elements, numbers, etc.) and does not exclude Existence of other items (members, steps, elements, numbers, etc.).

Without different definitions, all terms (including technical terms and scientific terms) used herein have the same meanings as widely understood by those skilled in the art to which the present invention belongs. The terms used here, unless different definitions are clearly indicated, should be interpreted as having a comprehensive meaning with the meanings in this specification and related technical fields, and should not be interpreted as idealized or overly formalized meanings.

Embodiment of this invention may be demonstrated referring schematic diagrams, and in schematic diagrams, in order to clarify description, it may express exaggeratedly.

In this specification, for example, when "1 to 10%" is expressed, it can be understood that the expression means 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 individually and specifically. %.

In this specification, all numerical values used to represent the content of ingredients or numerical ranges are to be interpreted as including the meaning of the word "about" unless expressly indicated. For example, "10 times" can be understood as "about 10 times" unless expressly indicated.

The literature cited in this specification shall be deemed as that all the disclosed contents are cited in this specification, and the industry can follow the context of this specification without departing from the spirit and scope of the present utility model, and understand it as the Relevant disclosures in previous technical documents such as citations are cited as a part of this specification.

The following is a more detailed description of the utility model with reference to the examples. However, the present invention can be embodied in various forms, and should not be construed as being limited to the embodiments described herein.

[Example]

Example 1: Changes in the amount of chlorine dioxide produced by the wavelength of irradiated light

In this embodiment, the chlorine dioxide generating unit and the chlorine dioxide generating device described in Fig. 1 and Fig. 2 are used for testing.

Fig. 1 is a longitudinal cross-sectional view showing the internal structure of a chemical storage unit and a light source unit of a chlorine dioxide generating unit used in this example. As shown in FIG. 1 , the unit 10 for chlorine dioxide generation includes a chemical storage unit 11 and a light source unit (LED chip 12 and operation board 13 ) that generates light in a visible region. The drug container 11 contains a test drug 14 . The medicine container 11 is provided with an opening 16 so that air can move inside and outside. The unit 10 for chlorine dioxide generation is equipped with the pipe 15 which introduce|transduces the air outside an apparatus into an apparatus.

The air introduced from the tube 15 is supplied to the inside of the medicine container 11 through the opening 16 . The water vapor contained in the supplied air was included in the chlorite in the test chemical 14 . The light in the visible region generated by the light source unit penetrates the bottom surface of the drug storage unit 11 to irradiate the test drug 14 present inside the drug storage unit 11 . Chlorite containing water vapor reacts with irradiated light to generate chlorine dioxide. Titanium dioxide contained in the test agent 14 together with chlorite promotes the reaction of generating chlorine dioxide from chlorite by irradiation with light in the visible region. Generated chlorine dioxide is discharged to the outside through the opening 16 .

Fig. 2 is a longitudinal sectional view showing the overall structure of the chlorine dioxide generator used in this example. As shown in FIG. 2, the chlorine dioxide generator 20 is equipped with the unit 21 for chlorine dioxide generation inside. The device body 22 of the chlorine dioxide generator 20 includes an air supply port 23 for introducing air outside the device into the device, and an air discharge port 25 for discharging the air inside the device to the outside of the device. In addition, the chlorine dioxide generator 20 is equipped with a fan 24 inside in order to introduce air into the inside of the device efficiently.

By driving the fan 24 , air is introduced into the inside of the device main body 22 from the air supply port 23 . The introduced air is discharged from the air discharge port 25 through the unit 21 for generating chlorine dioxide provided inside the device. In the unit 21 for chlorine dioxide generation, chlorine dioxide is generated by the same mechanism as that of the device described in FIG. 1 , so the air discharged from the air outlet 25 contains chlorine dioxide.

70 g of a 10 wt % sodium chlorite aqueous solution was spray-adsorbed on 100 g of sepiolite and dried, and then 20 g of a 10 wt % sodium hydroxide aqueous solution was spray-adsorbed and dried. Next, 20 g of powdery titanium dioxide prepared by subjecting titanium powder to sintering treatment was mixed thereinto, thereby constituting the chemical agent for the test used in this example.

The medicine is accommodated in the medicine containing part of the chlorine dioxide generator shown in FIG. 2 . Air was introduced into the medicine containing part from the opening of the medicine containing part at 1 L/min, and light was irradiated on the medicine inside the medicine containing part from the LED chip. The wavelength of the light irradiated from the LED chip was changed by 2 nm between 80 nm and 430 nm, and the chlorine dioxide concentration and the ozone concentration contained in the air discharged from the chlorine dioxide generator were measured. In this embodiment, the chlorine dioxide generator is housed in a reaction chamber of about 7 liters, and the chlorine dioxide concentration and the ozone concentration are measured by measuring the chlorine dioxide concentration and the ozone concentration in the reaction chamber. The results are shown in FIGS. 3 and 4 . In this test, a frequency counter (MCA3000, Tektronix), a spectrum analyzer (BSA, Agilent Technology), a wavelength scanning light source (TSL-510, Suntec), and an ultraviolet integrated light meter (UIT-250, Ushio Electric Co., Ltd.) were used. ), and photoreceptors of ultraviolet integrated light meter (VUV-S172, UVD-C405, Ushio Electric Co., Ltd.).

Fig. 3 is a graph showing actual measured values of chlorine dioxide concentration and ozone concentration in the air at various wavelengths of light, and Fig. 4 is an average of measured values in the comparative ultraviolet region (80 to 358 nm) among the measured values Graph of the values versus the mean of the measured values in the visible region (360 to 430 nm). In FIG. 4 , the average values of measured values of chlorine dioxide in the ultraviolet region and the visible region are about 2.25 ppm and 4.87 ppm, respectively, and the average values of the measured values of ozone in the ultraviolet region and visible region are about 7.04 ppm and 3.04 ppm, respectively.

As shown in FIG. 3 , when the wavelength of light irradiated on the drug is shifted from the ultraviolet region to the visible region, the ozone concentration in the air becomes maximum in the ultraviolet region and decreases from the ultraviolet region to the visible region. On the other hand, it is surprising that the concentration of chlorine dioxide in the air rises from the ultraviolet region towards the visible region. From this result, it can be understood by those in the industry that the applicable wavelength range of the present invention exceeds 430 nm, the upper limit of the measurement range of this example, for example, at least about 450 nm, and can be used without any problem.

Furthermore, as shown in Figure 4, when comparing the respective average values of the ozone concentration and the chlorine dioxide concentration in the air in the ultraviolet region and the visible region, the ozone concentration decreases to about 43% from the ultraviolet region toward the visible region, relatively Here, the chlorine dioxide concentration rises from the ultraviolet region to the visible region to about 213%.

That is, by irradiating a mixture of solid chlorite and a metal catalyst or a metal oxide catalyst with light in the visible region, chlorine dioxide can be generated more efficiently than when irradiated with light in the ultraviolet region.

Example 2: Changes in the amount of chlorine dioxide produced by the shape of the catalyst

In sample 1 used in this example, except for using granular titanium dioxide (prepared by subjecting titanium to sintering treatment), the chemical agent was prepared in the same manner as in Example 1. In samples 2 and 3 used in this example, the same method as in example 1 was used to prepare the drug.

The medicines (samples 1 to 3) prepared by the above method were housed in the medicine storage parts of the chlorine dioxide generator described in Example 1, respectively. For Sample 1 and Sample 2, air was introduced into the device at 1 L/min from the opening of the drug container, and light of 405 nm was irradiated from the LED chip of the light source. For Sample 3, only air was introduced into the device at 1 L/min from the opening of the drug container, and light was not irradiated. Then, the concentration of chlorine dioxide contained in the air discharged from the apparatus from the start of irradiation to 11 hours later was measured. FIG. 5 shows respective measurement results of samples 1 to 3. FIG.

As shown in FIG. 5 , when granular titanium dioxide (sample 1) was mixed with the chemical, it was found that chlorine dioxide could be generated more efficiently than when powdery titanium dioxide (sample 2) was mixed with the chemical.

Example 3: Discussion on the content ratio of chlorite and titanium dioxide in chemicals

70 g of a 10 wt % sodium chlorite aqueous solution was spray-adsorbed on 100 g of sepiolite and dried, and then 20 g of a 10 wt % sodium hydroxide aqueous solution was spray-adsorbed and dried. Then, the amount of powdery titanium dioxide was changed and mixed therein to constitute the test agent used in this example. Irradiation of visible light to the test chemical was performed with the same chlorine dioxide generator and irradiation method as in Example 1.

Fig. 6 shows changes in the amount of chlorine dioxide produced when the ratio of chlorite to titanium dioxide in the composition of the present invention is changed. The relationship between the titanium dioxide content (wt%) in the chemical agent, the mass ratio of chlorite and titanium dioxide in the chemical agent, and the chlorine dioxide concentration (ppm) contained in the air 1 hour after the start of visible light irradiation shown in Fig. 6 is shown in Table 1. In addition, FIG. 7 shows the relationship between the content of titanium dioxide in the agent of the present invention and the maximum concentration of chlorine dioxide produced by irradiation of visible light.

[Table 1]

As shown in Figure 6, Figure 7, and Table 1, the amount of chlorine dioxide produced when visible light is irradiated on the test agent increases from 0 to about 0.3 as the mass ratio of titanium dioxide to chlorite in the agent increases. rises and slowly decreases when the mass ratio of titanium dioxide to chlorite exceeds about 0.3. In addition, when the mass ratio of titanium dioxide to chlorite in the composition exceeds about 1.0, the amount of chlorine dioxide produced decreases compared to when no titanium dioxide is mixed.

Fig. 8 is a graph showing changes in the amount of chlorine dioxide produced when visible light is continuously irradiated on the test agent of this embodiment for a long time. As shown in Fig. 8, even when observed over a long period of time, the results are the same as those shown in Fig. 6 or Fig. 7, and the mixing ratio (mass ratio) of chlorite and titanium dioxide in the test chemical was set to 1:0.04 When it is 0.8 (preferably 1: 0.07 to 0.6, more preferably 1: 0.07 to 0.5), compared with the case where the mixing ratio is set outside this range, it was confirmed that the high concentration of chlorine dioxide can be released stably and continuously.

Example 4: Discussion on the Sandwich Structure of the Light Source Unit

In this invention, the effectiveness of the sandwich structure of a light source part was tested. In this example, experiments were carried out using the unit for generating chlorine dioxide shown in FIG. 9 and the chlorine dioxide generating device shown in FIG. 10 .

FIG. 9 is an internal configuration diagram showing a unit 30 for generating chlorine dioxide according to one embodiment of the present invention. As shown in FIG. 9 , the chlorine dioxide generating unit 30 of the present invention includes a chemical storage unit 32 and a light source unit (an electronic substrate 33 and an LED chip 34 ) that generates light in a visible region. The chemical storage part 32 contains the chemical|medical agent containing solid chlorite inside. The medicine container 32 is provided with openings (gas generation port 31 , air introduction port 36 ) so that air can move inside and outside.

The air introduced from the air inlet 36 is supplied to the inside of the medicine container 32 . The water vapor contained in the supplied air is incorporated into the test medicine contained in the medicine storage part 32 . The light in the visible region generated by the light source unit penetrates the exterior portion 35 of the medicine storage unit 32 and irradiates the medicine contained in the medicine storage unit 32 . The test chemical containing water vapor reacts with the irradiated light to generate chlorine dioxide. The generated chlorine dioxide is discharged to the outside through the gas generation port 31 .

Fig. 10 is an internal configuration diagram showing a chlorine dioxide generator 40 according to an embodiment of the present invention. As shown in FIG. 10, the chlorine dioxide generator 40 of this invention is equipped with the unit for chlorine dioxide generation (LED chip mounting board|substrate 41, and the chemical|medical agent storage part 42) which concerns on one Embodiment of this invention inside. The chlorine dioxide generator further includes a blower fan 44 inside, and by driving the blower fan 44, air is supplied to the inside of the unit for chlorine dioxide generation. By adjusting the driving of the blower fan 44, the relative humidity in the chemical storage part in the unit for chlorine dioxide generation can be adjusted.

By driving the blower fan 44, air is introduced into the inside of the chemical storage part from the air inlet of the unit for chlorine dioxide generation. The water vapor contained in the supplied air is incorporated into the test drug contained in the drug container. The light in the visible region generated by the light source unit passes through the exterior of the medicine storage unit to irradiate the medicine contained in the medicine storage unit. The test chemical containing water vapor reacts with the irradiated light to generate chlorine dioxide. The generated chlorine dioxide is discharged to the outside through the gas generation port.

70 g of a 10 wt % sodium chlorite aqueous solution was spray-adsorbed on 100 g of sepiolite and dried, and then 20 g of a 10 wt % sodium hydroxide aqueous solution was spray-adsorbed and dried. Then, about 1.8 g of powdery titanium dioxide was mixed therein to constitute the test drug used in this example. The prepared chemical agent for the test was housed in the chemical container portion of the chlorine dioxide generating unit shown in FIG. 9 , and visible light was irradiated from the light source portions (each 100 mm ² ) on two surfaces. This test is carried out in a reaction chamber of 1 m ³ , the temperature in the reaction chamber is about 26° C., and the relative humidity is about 40%. In the comparative example, except having used the light source part of one surface (single surface) for irradiation of visible light, it tested similarly to Example.

Fig. 11 shows the results of measuring changes over time in the concentration of chlorine dioxide in the reaction chamber in Examples and Comparative Examples. In addition, FIG. 12 shows the ratio of the concentration of chlorine dioxide in the reaction chambers in Examples and Comparative Examples at respective times from the start of irradiation. In Fig. 12, when light is irradiated from two light source parts (both sides), compared with when light is irradiated from only one light source part (single side), in order to show that the amount of chlorine dioxide produced is more than doubled, the The ratio of chlorine generation is twice the value of chlorine dioxide generation when single-sided irradiation is used.

As shown in Figures 11 and 12, when visible light is irradiated from two light source units (both sides), surprisingly, chlorine dioxide generation is shown compared to when visible light is irradiated from only one light source unit (single side). The amount becomes more than 2 times. In addition, as shown in FIG. 12 , it also shows that the ratio of the amount of chlorine dioxide generated in the example to the amount of chlorine dioxide generated in the comparative example further increases with time.

The results can be illustrated by FIG. 13 . That is, when the light passes through the medium, the light intensity decreases exponentially. Therefore, when the light is irradiated from only one side, it is difficult for the light to reach the inside or depth of the medicine, and it is difficult to efficiently irradiate the whole medicine with light. However, by irradiating the chemical with light from two directions (or two or more directions), the amount of light required for the reaction can be supplied to the inside of the chemical, and chlorine dioxide can be efficiently generated.

Example 5: Discussion on the relative humidity of the medicine container

Using the unit for chlorine dioxide generation shown in FIG. 9 and the chlorine dioxide generator shown in FIG. 10 , changes in the amount of chlorine dioxide generated due to the relative humidity of the chemical storage part were examined.

The same conditions as in Example 4 were used for the measurement of the medicine contained in the medicine storage part, the irradiation method of visible light, and the concentration of chlorine dioxide. The relative humidity in the medicine storage part can be adjusted by driving the blower fan and controlling the amount of air supplied to the medicine storage part (that is, the amount of water vapor supplied to the medicine storage part). The relationship between the relative humidity in the chemical container and the concentration of chlorine dioxide in the reaction chamber is shown in FIGS. 14 and 15 . FIG. 14 shows average values and standard deviations of chlorine dioxide concentrations measured multiple times during light irradiation from 0.5 hours to 2 hours, and FIG. 15 shows changes over time in the chlorine dioxide concentration in the reaction chamber.

As shown in FIG. 14 , by adjusting the relative humidity in the chemical container to 30 to 80% RH (preferably 50 to 70% RH, more preferably 40 to 60% RH), the amount of chlorine dioxide produced can be increased. When the relative humidity in the chemical storage part is less than 30% RH, the water required for the reaction of producing chlorine dioxide from chlorite is insufficient, and when the relative humidity is higher than 80% RH, the produced chlorine dioxide will dissolve in the In dew-condensed water, the amount of chlorine dioxide released as gas is reduced.

In addition, as shown in FIG. 15 , by adjusting the relative humidity in the medicine containing part to 30 to 80% RH (preferably 40 to 70% RH, more preferably 40 to 60% RH), the relative humidity does not reach 30% RH. A higher concentration of released chlorine dioxide can be maintained over time from the start of irradiation compared to that at the time of exposure. Even if the relative humidity was set at 20%, the concentration of chlorine dioxide increased at the beginning of the irradiation, which may be because the chemical itself contained some water before the irradiation started.

Example 6: Exploration of the usefulness of intermittent irradiation

Using the unit for chlorine dioxide generation of FIG. 9, the usefulness examination of the intermittent irradiation of visible light was performed in this invention.

The same conditions as in Example 4 were used for the measurement of the chemical contained in the chemical container and the concentration of chlorine dioxide. The intermittent irradiation of visible light from the light source unit is performed by switching on/off of the LED to alternately perform irradiation and stop of visible light. Specifically, intermittent irradiation was performed under the conditions of the following (1) to (3).

(1) Continue to irradiate the light within 2 minutes after the start of the irradiation, and repeat the cycle of irradiating the light for 10 seconds (turning on the LED) and stopping the light for 80 seconds (turning off the LED) 2 minutes after the start of the irradiation.

(2) Continue to irradiate the light within 2 minutes after the start of the irradiation, and repeat the cycle of irradiating the light for 20 seconds (turning on the LED) and stopping the light for 80 seconds (turning off the LED) 2 minutes after the start of the irradiation.

(3) The light was continuously irradiated within 2 minutes after the start of the irradiation, and the cycle of irradiating the light for 30 seconds (turning on the LED) and stopping the light for 80 seconds (turning off the LED) was repeated 2 minutes after the start of the irradiation.

The results of this test are shown in FIG. 16 . "Relative ClO ₂ gas concentration" in the graph of FIG. 16 is a relative value showing the chlorine dioxide concentration at each time when the chlorine dioxide concentration 2 minutes after the start of irradiation is set to 1.

As shown in FIG. 16 , in the present invention, by intermittently irradiating visible light from the light source and adjusting the balance between the irradiation time and stop time of the intermittent irradiation, chlorine dioxide of a desired concentration can be generated.

In addition, in the present invention, by intermittently irradiating visible light from the light source part, it is possible to prevent chlorine dioxide having a relatively high concentration from being released at the initial stage of irradiation start. When visible light is continuously irradiated from the light source (that is, intermittent irradiance is not performed), as shown in the graph of FIG. 6 , the chlorine dioxide generation concentration is extremely high at the beginning of irradiation, and then gradually decays. That is, in this invention, chlorine dioxide can be released more stably by intermittently irradiating visible light from a light source part.

Of course, when the visible light is irradiated intermittently from the light source unit, the consumption of the chemical agent containing solid chlorite in the chlorine dioxide supply source can be suppressed compared to when the visible light is continuously irradiated from the light source unit. That is, in this invention, the usable period of the unit for chlorine dioxide generation can be extended by using the light source which can irradiate visible light intermittently.

Example 7: Discussion on the use of air-permeable sheet in the drug storage part 1

In the chlorine dioxide generating device of the present invention, for example, as shown in FIG. 10 , in order to supply moisture (water vapor) and/or diffuse chlorine dioxide gas in a wider range to the solid medicament contained in the medicament containing part, The air is actively sent into the medicine storage part by the blower fan. However, depending on the air volume sent to the chemical storage unit, the humidity of the air, etc., the chemical may be excessively dried, reducing the efficiency of chlorine dioxide generation, or the chemical may become excessively humid.

Here, as shown in FIG. 17 , as a structure in which an air-permeable sheet (in this embodiment, EXEPOL (registered trademark) (manufactured by Mitsubishi Plastics Co., Ltd.) is used) is used to cover the opening of the medicine containing portion, it is tried to drive the present invention. The experiment of the chlorine dioxide generating device. As a result, most of the air that is sent into the device of the present invention flows in a manner of sweeping the surface of the medicine container, and only a part moves back and forth inside and outside the drug container without being sent into the drug. The state of the solid medicine is stabilized by the influence of the change of the air volume of the storage part or the humidity of the air. That is, by using the air-permeable sheet, the chlorine dioxide diffusion ability of the device of the present invention can be maintained, and the chlorine dioxide generation efficiency can be stabilized ( FIG. 18 ). Furthermore, since the opening of the medicine storage part is covered with the air-permeable sheet, even if the force of the air sent in is strong, the medicine will not be turned out of the medicine storage part, and the practicability of the device can be further improved.

Example 8: Discussion on the use of air-permeable sheet in the drug storage part 2

In the above-mentioned Example 7, the same experiment was carried out using the nonwoven fabric (ELEVES (registered trademark, manufactured by Unitika Co., Ltd.)) as the air-permeable sheet. As a result, most of the air that is sent into the device of the present invention flows in a manner of sweeping the surface of the medicine container, and only a part moves back and forth inside and outside the drug container without being sent into the drug. The state of the solid medicine is stabilized by the influence of the change of the air volume of the storage part or the humidity of the air. That is, by using the nonwoven fabric, the chlorine dioxide diffusion ability of the device of the present invention can be maintained, and the chlorine dioxide generation efficiency can be stabilized ( FIG. 18 ). Furthermore, since the opening of the medicine storage part is covered with non-woven fabric, even if the force of the air sent in is strong, the medicine will not be turned out of the medicine storage part, which can further improve the practicability of the device.

Claims (20)

1. A unit for chlorine dioxide generation, characterized in that, The unit includes a drug storage unit and at least two light source units, the light source unit is used to generate light substantially composed of wavelengths in the visible region, A medicine containing solid chlorite is contained in the medicine container, The medicine storage part is provided with one or more openings so that air can move inside and outside the medicine storage part, The one or more openings of the drug containing portion are covered with a gas-permeable sheet, Here, the medicine present in the medicine storage unit is irradiated with the light generated by the light source unit to generate chlorine dioxide gas. 2. The unit for generating chlorine dioxide as claimed in claim 1, characterized in that, the medicine storage part and the at least two light source parts are integrally arranged, and the at least two light source parts are viewed from at least two directions. Light is irradiated to the medicine accommodated in the medicine storage portion. 3. The unit for generating chlorine dioxide according to claim 1 or 2, wherein the wavelength of the irradiated light is 360 nm to 450 nm. 4. The unit for generating chlorine dioxide according to claim 3, wherein the light source unit includes a lamp or a chip. 5. The unit for generating chlorine dioxide according to claim 4, wherein the chip is an LED chip. 6 . The unit for generating chlorine dioxide according to claim 4 , wherein the light source unit is a light source unit capable of intermittently irradiating light. 7. The unit for generating chlorine dioxide according to claim 1, wherein the agent comprising solid chlorite is a porous substance comprising (A) carrying chlorite, and (B) ) Agents for metal catalysts or metal oxide catalysts. 8 . The unit for generating chlorine dioxide according to claim 7 , wherein the porous substance carrying chlorite is obtained by impregnating the porous substance with an aqueous chlorite solution and drying the porous substance. 9. The unit for generating chlorine dioxide according to claim 7 or 8, wherein the metal catalyst or metal oxide catalyst is selected from the group consisting of palladium, rubidium, nickel, titanium, and titanium dioxide. 10. The chlorine dioxide generating unit as claimed in claim 7 or 8, wherein the porous material is selected from sepiolite, palygorskite, montmorillonite, silica gel, diatom The group consisting of soil, zeolite, and perlite; The chlorite is selected from the group consisting of sodium chlorite, potassium chlorite, lithium chlorite, calcium chlorite, and barium chlorite. 11. The unit for generating chlorine dioxide according to claim 7 or 8, wherein the chlorite and the metal catalyst or metal oxide are contained in the chemical in the chemical container. The mass ratio of the catalyst is 1:0.04 to 0.8. 12. The unit for generating chlorine dioxide according to claim 7 or 8, wherein the porous substance also supports an alkali agent. 13. The chlorine dioxide generating unit as claimed in claim 12, wherein the alkaline agent is selected from sodium hydroxide, potassium hydroxide, lithium hydroxide, sodium carbonate, potassium carbonate, and lithium carbonate. group. 14. The unit for generating chlorine dioxide according to claim 12, characterized in that the molar ratio of the chlorite to the alkaline agent is 1:0.1 to 2.0. 15. The unit for generating chlorine dioxide as claimed in claim 12, wherein the porous substance carrying chlorite and alkali agent is impregnated with chlorite and alkali agent simultaneously or sequentially. Porous material and obtained by drying. 16. A chlorine dioxide generator, characterized in that the chlorine dioxide generator is provided with the unit for chlorine dioxide generation according to any one of claims 1 to 15. 17. The chlorine dioxide generating device according to claim 16, characterized in that, the chlorine dioxide generating device further comprises: a device for delivering air to the chlorine dioxide generating unit and accommodated in the chemical storage unit. The air supply part of the medicine. 18. The chlorine dioxide generating device as claimed in claim 17, wherein the air supply unit is a fan that introduces air into the interior from the outside of the chlorine dioxide generating device, or the air is introduced from the chlorine dioxide generating device. A fan inside the chlorine generating unit that releases air to the outside. 19. The chlorine dioxide generator according to claim 17 or 18, wherein at least one of the openings of the chemical storage part exists on the side of the chemical storage part, At least a part of the air blown from the blower is sent to the medicine through an opening provided on a side surface of the medicine storage part. 20. The chlorine dioxide generating device according to claim 17 or 18, wherein the relative humidity in the chemical storage part is maintained at 30 to 80% RH by the air sent from the air blowing part. .