JP2005224386A - Apparatus for chlorine dioxide gas sterilization - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for chlorine dioxide gas sterilization capable of stably feeding chlorine dioxide gas in a stable concentration with a small quantity of consumption of electric power for a long period of time, to satisfy a request for expansion of a sterilized range, and to make it possible to use a battery of a vehicle to be mounted on the vehicle. <P>SOLUTION: The apparatus 10 for chlorine dioxide disinfection is incorporated in a container casing. The casing is functionally divided from below into a container section 1 for storing a chlorine dioxide generating material, a gas generating lid section 2 disposed above the container part, and an air passage section 3 disposed further above for diffusing the generated chlorine dioxide gas to a region to be disinfected. The gas generating lid section 2 has an ultraviolet lamp 22 set in a lid 21 at a position for irradiating the surface of a gelated medicament in a container a lid 21, and a miniaturized fan 23 for feeding outside air from an intake 28 with a miniaturized heater 27 to the surface of the gelated medicament 11 stored in the container 12. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

    The present invention relates to a disinfection device that generates chlorine dioxide gas and releases the generated chlorine dioxide gas to a disinfection target range.

  Conventionally, a contaminated part has been sterilized with chlorine dioxide gas, and various chlorine dioxide gas generators for such sterilization have been proposed.

  For example, in Patent Document 1 below, chlorine trioxide is obtained by reacting ozone and chlorine dioxide. In Patent Document 2 below, chlorine dioxide is irradiated with an ultraviolet ray on an aqueous solution containing sodium chlorite. Is described.

  In Patent Document 3 below, a porous inorganic carrier having adsorbed chlorine dioxide gas is housed in a UV-impermeable container, air is introduced from the bottom of the container, and the gas is passed through a breathable resin film. An apparatus is disclosed which releases chlorine gas.

  Further, in Patent Document 4 below, the gel-like or liquid stabilized chlorine dioxide stored in the container is irradiated with ozone to evaporate chlorine dioxide gas from the gel-like or liquid stabilized chlorine dioxide, and this is evaporated. It is disclosed that chlorine dioxide gas is discharged to the range to be disinfected by an exhaust fan.

Furthermore, in Patent Document 5 listed below, as an improvement of an apparatus for releasing chlorine dioxide gas by blowing heated air into gelled chlorine dioxide housed in the container described in Patent Document 6 below, the container is heated. A device that reduces power consumption and saves space by providing a heater and a fan for deriving generated chlorine dioxide gas has been proposed.
JP-A-4-15059 JP-A-4-300201 JP-A-6-233985 JP 2000-202010 A JP 2003-102820 A Japanese Patent Laid-Open No. 11-285525

  In recent years, disinfection devices using chlorine dioxide gas have been desired to expand the disinfection range. However, with the expansion of the disinfection range, it is necessary to increase the capacity of the chlorine dioxide gas generator, and accordingly, the blower for sending out the chlorine dioxide gas generated by the heater must also be increased in size. Absent.

  Control becomes complicated by the increase in the size of the container and the increase in the size of the heater, and the temperature management becomes difficult. Therefore, it is difficult to maintain an appropriate temperature of 40 to 60 ° C. for the generation of chlorine dioxide gas. In particular, due to the increase in the capacity of the heater, a large amount of heat is supplied to the chlorine dioxide gas generation source, and a higher concentration of gas is generated than necessary, which rapidly reduces the generation source and makes chlorine dioxide gas longer. It is difficult to generate a steady state across the board. Further, when the temperature is lowered, only a low concentration gas can be generated.

  Furthermore, the increase in the heat capacity of the heater accompanying the increase in the size of the generator and the increase in the power consumption accompanying the strengthening of the blower fan, when disinfecting commercial refrigerators, refrigerated vehicles, etc. It will also affect the cooling capacity of refrigerators and cold cars.

  Furthermore, in order to use this chlorine dioxide gas disinfection device for vehicle mounting, if the power consumption exceeds the capacity of the battery, the battery of the automobile cannot be used as a power supply source, and for the operation of the device, Another problem is that an engine generator needs to be provided, and the entire apparatus becomes large.

  Thus, the chlorine dioxide gas disinfection device needs to satisfy the needs for expansion of the disinfection range, and on the other hand, if it is necessary to satisfy the needs for expansion of the disinfection range, There is a contradictory problem that the capacity of the heater and the blower fan is inevitably increased and the function is lowered.

  The first problem to be solved by the present invention is to satisfy the need for expanding the disinfection range without increasing the power consumption of the chlorine dioxide gas disinfection device.

  Moreover, the 2nd subject is providing the chlorine dioxide gas disinfection apparatus which can supply the chlorine dioxide gas of the stable density | concentration with little power consumption for a long time.

  Furthermore, another problem is that in a disinfecting apparatus that generates chlorine dioxide gas by irradiating the gel-like chemical, which is a chlorine dioxide gas generation source, with a low power consumption, a stable concentration of chlorine dioxide gas can be stabilized over a long period of time. The provision of equipment that can be supplied.

  It is another object of the present invention to provide a chlorine dioxide gas disinfecting apparatus that is compact as a whole, easy to handle, and that can use a vehicle battery for vehicle mounting.

  In the chlorine dioxide gas disinfection apparatus, the present invention suffices to be a heater that keeps the temperature of the chlorine dioxide gas source at a constant temperature between 40 to 60 ° C. in order to reduce the power consumption of the heater. It was completed with the recognition that the amount of heat is not necessary.

  Based on this recognition, it is not necessary to install a heater on the ventilation path when diffusing chlorine dioxide gas generated in the conventional manner into the range to be disinfected, and warm air of 40 to 60 ° C. is used as the chlorine dioxide gas generation source. It is enough to install a small fan that sends

  That is, the invention of the present application sends warm air to the chlorine dioxide generating raw material stored in the container while irradiating it with ozone, ultraviolet rays, or heat, and brings chlorine dioxide gas generated from the chlorine dioxide generating raw material into the disinfected range. A chlorine dioxide gas disinfection device to be supplied, comprising a container for storing a chlorine dioxide generating raw material, a lid member covering the container in a sealed state, and a gas diffusion passage communicating with the lid member, Is formed with a space for maintaining chlorine dioxide gas generated from the chlorine dioxide generating raw material stored in the container, and this space is provided with outside air provided with a small fan and a small heater opening in this space. A mouth, an ultraviolet irradiation device for irradiating the surface of the chlorine dioxide generating raw material stored in the container, and a conduit for feeding the chlorine dioxide gas maintained in the space into the gas diffusion passage. Characterized in that it is formed.

  In addition, a container for storing each chlorine dioxide generating raw material, a lid member that covers the container in a sealed state, and a gas diffusion passage that communicates with the lid member are respectively provided in the casing, for example, from below in the casing. The lid member and the gas diffusion passage may be arranged in the separated areas in this order.

  In addition, the lid member seals the upper part of the storage container and can be formed so as to be opened and closed when the gelled medicine in the container is exchanged, and can be integrated with the gas diffusion passage.

  Further, the lid member having the gas generating function is provided with a sensor for detecting the temperature in the lid, the temperature detected by the sensor is changed into an electric signal, and the electric signal is input to a separately installed control device, and the ultraviolet ray is detected. The amount of generated gas, the output of the heater and fan provided at the outside air inlet are adjusted, and the amount, temperature and concentration of the generated gas are kept constant.

  As the source of chlorine dioxide gas stored in the container, chemicals capable of generating chlorine dioxide gas supported on inorganic particles can be used, but gel agents such as pure chlorine dioxide gel, stabilized chlorine dioxide gel, sodium chlorite gel, etc. However, it is convenient from the viewpoint of management of generated gas.

  Furthermore, the irradiation of the chlorine dioxide gas generation source stored in the container is carried out to promote the generation of chlorine dioxide gas by heating, oxidation, or chemical reaction of the generation source. Depending on the form, ozone irradiation as an oxidation source may be used, but sodium chlorite gel is used as the chlorine dioxide gas generating source, and ultraviolet irradiation as the irradiation source is most effective for the above purpose.

1. By controlling the temperature of the gas generating lid internal space and the internal space of the chlorine dioxide gas generating raw material storage container to a constant temperature, the temperature of the raw material surface becomes constant, and stable raw material weight loss can be obtained. A constant gas concentration can be generated continuously.

2. By minimizing the gas generating lid internal space and the container internal space, a small heater can be used as the heater, and the power consumption can be minimized. Can be reduced.

3. Since the gas generated in the gas generating lid internal space and the container internal space is constantly blown from the gas discharge port through the gas introduction path to the gas diffusion air passage, it is necessary to use a low-capacity small fan or an air pump. Power consumption can be further reduced.

4). Conventionally, the width of the sterilization range was determined by the capacity of the large fan of the gas diffusion air passage, but in the present invention, without changing the capacity of the gas generation lid and the gel chlorine storage container, By controlling the temperature of the gas generating lid space and the internal space of the gel-like chlorine dioxide storage container, the amount of chlorine dioxide gel reduced by irradiation can be changed, and the gas concentration to the disinfected range can be easily changed.

5). By minimizing power consumption with a heater and fan, it is possible to suppress the temperature rise of the gas diffusion air passage, and even if there are commercial refrigerators or refrigerators in the sterilized range, the temperature adjustment capability can be improved. There is no impact.

6). Power consumption can be suppressed within the capacity range of the vehicle battery, and it can be used as an in-vehicle disinfection device.

  Hereinafter, embodiments of the present invention will be described based on examples in which a chlorine dioxide gas disinfecting apparatus is incorporated in a container-like casing suitable for mounting on a vehicle, that is, a box.

  FIG. 1 is a diagram schematically showing an embodiment of the present invention. As shown in the figure, a chlorine dioxide disinfecting apparatus 10 according to the present invention is incorporated in a metal container-like casing, and the casing is functionally a container part 1 for storing chlorine dioxide generating raw materials from below. And a gas generating lid portion 2 disposed thereon and a blowing passage portion 3 for diffusing chlorine dioxide gas generated in the upper portion to the disinfected area.

  The container part 1 for storing the chlorine dioxide generating raw material has a container 12 for storing the gel chemical agent 11 of sodium chlorite and a push-up spring 13 attached to the bottom position of the container. 12 and the lid member 21 can always be in close contact with each other.

  The gas generating lid portion 2 extends the constituent members of the container 12 of the container portion 1 upward to form a gas generating lid member 21. The gas generating member 21 is configured so that the upper end portion of the container 12 is hermetically sealed by an opening / closing mechanism 27 and can be opened and closed when the gel-like medicine 11 accommodated in the container 12 is replaced.

  Reference numeral 22 denotes an ultraviolet lamp installed at a position in the lid member 21 that irradiates the surface of the gel-like medicine in the container. The small fan for sending in the surface of the gel-form chemical | medical agent 11 is shown. Further, reference numeral 24 denotes a conduit for sending the gas in the lid member 21 from the inlet 25 to the upper air passage portion 3.

  Reference numeral 26 denotes a sensor for detecting the temperature in the lid, sending a detection signal to a control device (not shown), and adjusting the outputs of the ultraviolet lamp 22 and the heater 28 based on the difference from the set temperature.

  The blower passage portion 3 diffuses chlorine dioxide gas fed from the inside of the lid member 21 through the pipe line 24 to the sterilized range by the fan 31.

  Although not shown, the output of the ultraviolet lamp 22 and the heater 28 is managed by the sensor 26 provided in the lid member 21, and chlorine dioxide gas maintaining appropriate conditions is released to the disinfected area.

  The chlorine dioxide gas disinfecting apparatus of the present invention can be applied regardless of the generation source of chlorine dioxide gas, and regardless of the heating source to the generation source of chlorine dioxide gas.

The Example of the chlorine dioxide gas disinfection apparatus of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container part which stored chlorine dioxide generation raw material 11 Gel-like chemical | medical agent 12 Container 13 Push-up spring 2 Lid part 21 Lid member 22 Ultraviolet lamp 23 Small fan 24 Gas feed line 25 Gas feed port 26 Temperature sensor 27 Opening / closing mechanism 28 Heater 29 Inlet 3 Air passage 31 Fan
10 Chlorine dioxide gas disinfection device

Claims (6)

A chlorine dioxide gas disinfection device that supplies hot air to the chlorine dioxide generating raw material stored in the container while irradiating ultraviolet rays or ozone to generate chlorine dioxide, and supplies the generated chlorine dioxide gas to the disinfected area. There,
A container for containing the chlorine dioxide generating raw material, a lid member for covering the container in a sealed state, and a gas diffusion passage communicating with the lid member;
The lid member is formed with a space for maintaining chlorine dioxide gas generated from the chlorine dioxide generating raw material stored in the container,
In this space, an outside air inlet provided with a small fan and a small heater opening in this space, an irradiation device for irradiating the surface of the chlorine dioxide generating raw material stored in the container, and the space maintained in this space A chlorine dioxide gas disinfecting device in which a pipe for feeding chlorine dioxide gas into the gas diffusion passage is formed.   The chlorine dioxide gas disinfecting apparatus according to claim 1, wherein the chlorine dioxide generating raw material stored in the container is gelled sodium chlorite and the irradiation source is ultraviolet rays.   The container for containing the chlorine dioxide generating raw material, the lid member for covering the container in a sealed state, and the gas diffusion passage communicating with the lid member are respectively disposed separately in the box-shaped casing. The chlorine dioxide gas disinfection device described in 1.   In the box-shaped casing, each part of the container, the lid member, and the gas diffusion passage is disposed in an area separated in that order from below, and the lid member and the gas diffusion passage are integrally structured. 3. The chlorine dioxide gas disinfection device according to 3.   The chlorine dioxide gas disinfection device according to claim 1, wherein the lid member seals the upper portion of the storage container and has a mechanism that can be opened and closed when the gelled medicine in the container is replaced.   The lid member is provided with a sensor that detects the temperature inside the lid with a gas generation function, changes the temperature detected by this sensor into an electrical signal, and inputs this electrical signal to a separately installed control device to generate gas. The chlorine dioxide gas disinfection device according to claim 1, wherein the amount, temperature, and concentration of the gas are maintained constant.

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