WO2023074464A1 - 移動式除染装置 - Google Patents
移動式除染装置 Download PDFInfo
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- WO2023074464A1 WO2023074464A1 PCT/JP2022/038725 JP2022038725W WO2023074464A1 WO 2023074464 A1 WO2023074464 A1 WO 2023074464A1 JP 2022038725 W JP2022038725 W JP 2022038725W WO 2023074464 A1 WO2023074464 A1 WO 2023074464A1
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- Prior art keywords
- decontamination
- decontaminating
- mist
- liquid
- liquid supply
- Prior art date
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- 238000005202 decontamination Methods 0.000 title claims abstract description 211
- 230000003588 decontaminative effect Effects 0.000 title claims abstract description 201
- 239000003595 mist Substances 0.000 claims abstract description 139
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 258
- 238000003860 storage Methods 0.000 claims description 24
- 238000005303 weighing Methods 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 148
- 239000007789 gas Substances 0.000 description 23
- 239000002245 particle Substances 0.000 description 17
- QOSATHPSBFQAML-UHFFFAOYSA-N hydrogen peroxide;hydrate Chemical compound O.OO QOSATHPSBFQAML-UHFFFAOYSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 11
- 238000007796 conventional method Methods 0.000 description 8
- 239000003814 drug Substances 0.000 description 8
- 238000000889 atomisation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000004108 freeze drying Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011194 good manufacturing practice Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/12—Apparatus for isolating biocidal substances from the environment
- A61L2202/122—Chambers for sterilisation
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- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
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- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/15—Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
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- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/16—Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/25—Rooms in buildings, passenger compartments
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- A—HUMAN NECESSITIES
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- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/13—Dispensing or storing means for active compounds
- A61L2209/132—Piezo or ultrasonic elements for dispensing
Definitions
- the present invention relates to a mobile decontamination device that decontaminates the inside of an isolator using decontamination mist.
- the present invention relates to a mobile decontamination apparatus that decontaminates the inside of a decontamination target room having a large area or a plurality of decontamination target rooms.
- decontamination rooms have been widely used for decontamination of work rooms that require a sterile environment (hereinafter referred to as decontamination rooms).
- This hydrogen peroxide gas has a strong sterilizing effect, is inexpensive and readily available, and is effective as an environmentally friendly decontamination gas that ultimately decomposes into oxygen and water.
- hydrogen peroxide gas has conventionally been used to decontaminate individual rooms to be decontaminated, such as sterile rooms, isolators, glove boxes, and other small spaces.
- a large amount of hydrogen peroxide gas with a predetermined concentration must be stably supplied. There was a problem.
- a large amount of hydrogen peroxide gas generated by such a large decontamination gas generator is vaporized hydrogen peroxide water and is in the state of a mixed gas of hydrogen peroxide gas and water vapor.
- This hydrogen peroxide gas has a low density and is supplied to the room to be decontaminated through a large-diameter duct. Therefore, in order to stably supply hydrogen peroxide gas adjusted to a predetermined concentration by the decontamination gas generator to the room to be decontaminated, the duct must be sufficiently warmed with a heater to prevent condensation inside the duct. There is a need to. If the heat retention by the heater is insufficient, the supplied hydrogen peroxide gas will condense in the duct, resulting in insufficient concentration and amount of supply to the room to be decontaminated. In addition, the hydrogen peroxide solution generated by the condensation is heated, and there is a problem that it corrodes the inside of the duct.
- Patent Document 2 a gas/liquid mixture of hydrogen peroxide and compressed air is supplied to each chamber to be decontaminated through a small-diameter gas/liquid supply pipe.
- each room to be decontaminated requires its own gas generator for decontamination, and the cost of equipment, chemicals, energy, etc. may become an issue.
- the present inventors proposed a decontamination method using hydrogen peroxide mist instead of the conventional hydrogen peroxide gas in the decontamination device shown in Patent Document 3 below.
- this decontamination device by performing hydrogen peroxide mist decontamination (also called aerosol decontamination) in an ultrasonic vibration field, the decontamination effect is perfected by supplying an appropriate amount of decontamination agent to the room to be decontaminated.
- the efficiency of decontamination work can be improved by shortening the work time for aeration and the like.
- the decontamination effect can be achieved with a significantly smaller amount of hydrogen peroxide input.
- Non-uniform distribution of can be a problem.
- the reaching distance of the hydrogen peroxide mist becomes uneven, and in particular, the hydrogen peroxide mist having a large particle size falls at a short distance.
- An object of the present invention is to provide a mobile decontamination device that is effective even when decontaminating the inside of a room.
- the present inventors have completed the present invention by moving the outlet of the decontamination device in order to decontaminate a wide area using hydrogen peroxide mist.
- the mobile decontamination device (30) is: A decontamination device that decontaminates the interior of a decontamination target room (11) using decontamination mist, Having a decontamination liquid discharge device (50) and an indoor moving device (60),
- the decontaminating liquid discharge device includes a decontaminating liquid tank (54), one or more mist generators (51) that mist the decontaminating liquid, and a drive circuit (52) that controls driving of the mist generators.
- the indoor moving device includes a travel path (61) arranged inside the room to be decontaminated, and a travel device (62) for traveling the decontaminating liquid discharge device along the travel path. It is characterized by
- the present invention is the mobile decontamination apparatus according to claim 1,
- a decontaminant comprising an external storage tank in which a decontaminating liquid is stored in advance and a liquid supply pipe (43) for supplying the decontaminating liquid between the external storage tank (41) and the decontaminating liquid discharge device.
- the decontaminating liquid supply device includes a weighing device and a liquid supply pump, measures a predetermined amount of decontaminating liquid, and supplies the decontaminating liquid to the decontaminating liquid discharge device through the liquid supply pipe. do.
- the present invention is the mobile decontamination apparatus according to claim 2,
- An operation control device (70) for controlling the operation of the decontaminating liquid supply device, the decontaminating liquid discharge device, and the indoor moving device According to a preset program, the operation control device controlling the weighing device and the liquid supply pump included in the decontaminating liquid supply device to weigh a predetermined amount of decontaminating liquid to adjust the liquid supply amount to the decontaminating liquid discharging device; controlling the drive circuit provided in the decontaminating liquid discharging device to adjust the amount of mist discharged, By controlling the traveling device provided in the indoor moving device and adjusting the position of the decontaminating liquid discharging device in the interior of the decontamination target room, It is characterized by controlling the position of the room to be decontaminated and the amount of mist emitted at the position.
- the present invention is the mobile decontamination apparatus according to claim 3, A liquid supply station (45) for temporarily storing a predetermined amount of decontaminating liquid in a conduit of the liquid supply pipe that communicates with the external storage tank and the decontaminating liquid discharge device,
- the operation control device is characterized by controlling liquid supply from the decontaminating liquid supply device to the liquid supply station and liquid supply from the liquid supply station to the decontaminating liquid discharge device.
- the present invention is the mobile decontamination apparatus according to claim 1,
- the decontaminating liquid tank provided in the decontaminating liquid discharge device is characterized by being a replaceable cartridge type tank filled with a predetermined amount of decontaminating liquid.
- the present invention is the mobile decontamination apparatus according to claim 1,
- the decontaminating liquid discharge device or the indoor movement device is characterized by being equipped with a replaceable cartridge type power supply device.
- the mist generator includes a piezoelectric vibrator (51a) and a porous vibrating plate (51b) provided with a plurality of fine holes penetrating from the front and back sides for atomizing the decontamination liquid by vibration of the piezoelectric vibrator (51a).
- An ultrasonic atomization device comprising: The porous diaphragm constitutes the mist outlet.
- the mobile decontamination device has the decontamination liquid discharge device and the indoor movement device.
- the decontaminating liquid discharge device includes a decontaminating liquid tank, one or more mist generators that turn the decontaminating liquid into mist, a drive circuit that controls the driving of the mist generator, and the mist generator.
- One or two or more mist outlets are provided for emitting mist of the decontamination agent into the interior of the room to be decontaminated.
- the indoor moving device is characterized by comprising a travel path arranged inside the room to be decontaminated, and a travel device for causing the decontaminating liquid discharge device to travel along the travel path.
- An effective mobile decontamination device can be provided.
- the mobile decontamination device supplies the decontamination liquid between the external storage tank in which the decontamination liquid is stored in advance and the decontamination liquid discharge device between the external storage tank and the decontamination liquid discharge device.
- a decontamination liquid supply device including a liquid supply pipe.
- the decontaminating liquid supply device includes a weighing device and a liquid supply pump, measures a predetermined amount of decontaminating liquid, and supplies the liquid to the decontaminating liquid discharge device through the liquid supply pipe.
- the mobile decontamination device may include an operation control device that controls the operations of the decontamination liquid supply device, the decontamination liquid release device, and the indoor moving device.
- the operation control device controls the weighing device and the liquid supply pump provided in the decontaminating liquid supply device according to a preset program, weighs a predetermined amount of decontaminating liquid, and discharges it to the decontaminating liquid discharge device. Adjust the amount of fluid supplied. Also, the amount of mist emitted is adjusted by controlling the drive circuit provided in the decontaminating liquid discharge device. In addition, it controls the traveling device of the indoor moving device to adjust the position of the decontaminating liquid discharge device inside the room to be decontaminated.
- the mobile decontamination apparatus may include a liquid supply station.
- This liquid supply station is located in the pipeline of the liquid supply pipe connecting the external storage tank and the decontaminating liquid discharge device, and temporarily stores a predetermined amount of the decontaminating liquid.
- the operation control device controls liquid supply from the decontaminating liquid supply device to the liquid supply station and liquid supply from the liquid supply station to the decontaminating liquid discharge device.
- the decontaminating liquid tank provided in the decontaminating liquid discharge device may be a replaceable cartridge type tank filled with a predetermined amount of decontaminating liquid.
- the decontamination liquid discharge device or the indoor moving device may be equipped with a replaceable cartridge type power supply device.
- the mist generator may be an ultrasonic atomizer.
- This ultrasonic atomizer includes a piezoelectric vibrator and a porous vibrating plate having a plurality of fine holes penetrating through the front and back surfaces for atomizing the decontamination liquid by vibration of the piezoelectric vibrator.
- the perforated diaphragm constitutes a mist outlet.
- FIG. 1 It is internal sectional drawing which shows the state which decontaminates the inside of the chamber of an isolator apparatus with hydrogen peroxide mist by the conventional method, (A) is a front view, (B) is a top view. 1. It is internal sectional drawing which shows the state which added the mist discharge device and the ultrasonic vibration board in the inside of the chamber of FIG. 1, (A) is a front view, (B) is a top view. 1. It is internal sectional drawing which shows the state by which the article
- FIG. 4 is an internal cross-sectional view showing a state in which the interior of the chamber of the isolator device is being decontaminated with hydrogen peroxide mist using the mobile decontamination device according to the first embodiment of the present invention, (A) a front view; , (B) are plan views. It is drawing which shows the decontamination liquid discharge apparatus used for the mobile decontamination apparatus of FIG. 5, Comprising: (C) It is a top view, (D) It is a front view. It is drawing which shows the mist generator of the decontamination liquid discharge apparatus of FIG. 6, Comprising: (E) The front view seen from the inside of a chamber, (F) It is side sectional drawing.
- FIG. 11 is a plan view of an internal cross section showing a state in which a room to be decontaminated in the second embodiment is decontaminated by a conventional method
- FIG. 8 is a plan view of an internal cross section showing a state in which a room to be decontaminated in the second embodiment is being decontaminated by a mobile decontamination apparatus according to the present invention
- FIG. 11 is a plan view of an internal cross section showing a state in which a room to be decontaminated according to the third embodiment is decontaminated by a conventional method
- FIG. 11 is a plan view of an internal cross section showing a state in which a room to be decontaminated according to the third embodiment is being decontaminated by a mobile decontamination apparatus according to the present invention
- the decontamination agent used as the decontamination agent.
- concentration of the hydrogen peroxide solution used is not particularly limited, it is generally preferable to use 30 to 35% by weight in consideration of the handling of hazardous substances.
- the decontaminant used in the conventional decontamination method and the mobile decontamination apparatus according to the present invention is not limited to hydrogen peroxide water, and may be a liquid decontaminant such as an aqueous solution of peracetic acid.
- the conventional decontamination method and the mobile decontamination apparatus according to the present invention use clean rooms and isolators as rooms to be decontaminated, or insides such as pass boxes connected to these rooms to be decontaminated, or decontamination of these
- the decontamination agent is converted into a fine mist and supplied to the interior of the room to be decontaminated.
- the term "mist” is interpreted in a broad sense, and includes the state of droplets of the decontaminating agent that are finely divided and suspended in the air, the state in which the gas and droplets of the decontaminating agent are mixed, and the decontamination It includes a state in which the agent repeatedly undergoes a phase change of condensation and evaporation between gas and droplets.
- the particle size is also interpreted in a broad sense, including mist, fog, droplets, etc., which are finely divided depending on the case.
- FIG. 1 is an internal cross-sectional view showing a state in which the inside of the chamber of the isolator device is decontaminated with hydrogen peroxide mist by a conventional method, and is (A) a front view and (B) a plan view.
- unidirectional air flows from the top to the bottom inside the chamber of the isolator device.
- the isolator device 10 includes a chamber 11, an air supply blower 12, and an exhaust blower 13 (the electrical equipment and mechanical room are not shown).
- the chamber 11 is a box made of a stainless metal plate, and is airtightly shielded from the external environment in which the operator works except for a limited intake port and exhaust port.
- the chamber 11 in FIG. 1 is assumed to have a long work area in the left and right of the drawing (the length direction is shortened for simplification).
- a plurality of air supply fans 15 and filter units 16 for filtering the air supplied from the air supply blower 12 and supplying it to the work area 14 and the work area 14 are provided on the ceiling inside the chamber 11 . and a screen mesh rectifying plate 17 for rectifying the clean air filtered by the air supply filter unit 16 and supplying it to the working area 14 .
- mist discharge devices 20a and 20b and ultrasonic vibrating discs 21a and 21b are provided respectively on the inner wall surfaces. Further, outside the isolator device 10, an external storage tank 22 for supplying hydrogen peroxide water to the mist emitting devices 20a and 20b, a weighing device 23, liquid supply pipes 24a and 24b, and liquid supply pumps 25a and 25b are provided.
- hydrogen peroxide water mist is emitted from the mist emitting devices 20a and 20b and diffused inside the chamber 11 by ultrasonic waves emitted from the ultrasonic vibrating plates 21a and 21b.
- the mist discharge devices 20a and 20b and the ultrasonic vibrating discs 21a and 21b in FIG. 1 are both fixed and not movable unlike the present invention.
- the hydrogen peroxide mist emitted from the mist emitting devices 20a and 20b falls while diffusing in a parabola.
- the particle size of the hydrogen peroxide mist has a distribution, and the hydrogen peroxide mist having a large particle size (the parts indicated by Xa and Xb in the drawing) cannot sufficiently reach the positions distant from the mist emitting devices 20a and 20b. , the floor surface in the vicinity is wetted (portions Ya and Yb in the drawing).
- the hydrogen peroxide mist with a small particle size cannot sufficiently reach the central portion of the chamber 11 . Such a phenomenon is likely to occur particularly in the case of a wide chamber with a large planar aspect ratio.
- FIG. 2A and 2B are internal cross-sectional views showing a state in which a mist discharge device and an ultrasonic vibrator are additionally installed inside the chamber of FIG.
- the contents of the isolator device 10 and the like are the same as in FIG. 1, and the same reference numerals are used.
- a mist discharge device 20c and an ultrasonic vibrating plate 21c are additionally provided on the inner wall surface inside the back wall 11c of the chamber 11 (within the work area 14). Further, the mist discharge device 20c is provided with a liquid supply pipe 24c and a liquid supply pump 25c from the external storage tank 22 .
- the hydrogen peroxide mist from the mist release device 20c can reach the center of the chamber 11.
- the hydrogen peroxide mist with a large particle size moves away from the respective mist emitting devices 20a, 20b, and 20c.
- the floor surface in the vicinity cannot be sufficiently reached (parts Ya, Yb, and Yc in the drawing).
- 3A and 3B are internal cross-sectional views showing a state in which articles are arranged inside the chamber of FIG.
- the contents of the isolator device 10 and the like are the same as in FIG. 1, and the same reference numerals are used.
- articles 18a and 18b are arranged near the side wall surface 11a.
- the large-sized hydrogen peroxide mists (portions Xa and Xb in the figure) emitted from the mist emitting devices 20a and 20b are sufficiently far away from the mist emitting devices 20a and 20b. , and the floor surface in the vicinity is wet (portions Ya and Yb in the drawing). Furthermore, the hydrogen peroxide mist with small particle size emitted from the mist emitting device 20a collides with the surfaces of the articles 18a and 18b and adheres and condenses to wet these surfaces (parts Za and Zb in the drawing). As a result, the central portion of the chamber 11 is not reached.
- FIG. 4 is an internal cross-sectional view showing a state in which articles are arranged inside the chamber of FIG.
- the contents of the isolator device 10 and the like are the same as in FIG. 1, and the same reference numerals are used.
- an article 18c is arranged in the central part inside the chamber 11. As shown in FIG.
- the small-particle-sized hydrogen peroxide mist emitted from the mist emitting device 20c collides with the surface of the article 18c, adheres and condenses, and wets the surface (Zc in the drawing). part) and cannot reach the surface wall 11 d of the chamber 11 .
- the inventors have developed a mobile decontamination device according to the present invention.
- the mobile decontamination apparatus according to the present invention will be described based on each embodiment.
- this invention is not limited to each embodiment shown below.
- FIG. 5 is an internal cross-sectional view showing a state in which the interior of the chamber of the isolator device is decontaminated with hydrogen peroxide mist using the mobile decontamination device according to the first embodiment of the present invention, A) A front view, and (B) a plan view.
- FIG. 5 the contents of the isolator device 10, etc. are the same as in FIG. 1, and the same reference numerals are used.
- the mist discharge device and the ultrasonic vibration board provided in the conventional decontamination method of FIG. 1 are not provided.
- a mobile decontamination device 30 is provided above the inner wall surface inside the back wall 11 c of the chamber 11 (within the working area 14 ) and outside the isolator device 10 .
- the mobile decontamination device 30 has a decontamination liquid supply device 40 , a decontamination liquid discharge device 50 , an indoor moving device 60 and an operation control device 70 .
- the decontamination liquid supply device 40 includes an external storage tank 41 , a weighing device 42 , a liquid supply pipe 43 , a liquid supply pump 44 , and a liquid supply station 45 .
- the external storage tank 41 , the weighing device 42 , the liquid supply pipe 43 and the liquid supply pump 44 are provided outside the isolator device 10 .
- the liquid supply station 45 is provided inside the side wall 11a of the chamber 11 (within the work area 14) on the upper part of the inner wall surface.
- the external storage tank 41 and the liquid supply station 45 are communicated by a liquid supply pipe 43 .
- a predetermined amount of hydrogen peroxide solution weighed by the weighing device 42 is supplied to the liquid supply station 45 by the liquid supply pump 44 .
- the decontamination liquid discharge device 50 discharges hydrogen peroxide mist while moving inside the work area 14 of the chamber 11 . Details of the decontaminating liquid discharge device 50 will be described later.
- the indoor movement device 60 has a travel path 61 and a travel device 62 .
- the running path 61 is provided horizontally from the side wall 11a to the side wall 11b on the upper part of the inner wall surface inside the back wall 11c of the chamber 11 (within the working area 14).
- One end (side wall 11a side) of the running path 61 is connected to the liquid supply station 45 .
- the traveling device 62 is integrally joined to the back surface of the decontaminating liquid discharge device 50, and causes the decontaminating liquid discharge device 50 to travel along the running path 61 between the side walls 11a and 11b.
- the structures of the travel path 61 and travel device 62 and the travel mechanism are not particularly limited.
- mechanical drive such as servo motor, ultrasonic motor, ball screw, etc.
- linear motor drive by magnetic levitation air drive by fan
- the decontaminating liquid discharge device 50 can be moved by tilting the moving bar.
- an LM guide Linear Motion Guide
- the LM rail is used as the travel path 61
- the LM block is used as the travel device 62.
- the operation control device 70 operates the weighing device 42 and the supply pump 44 of the decontaminating liquid supply device 40, the driving circuit (described later) of the decontaminating liquid discharging device 50, the traveling device 62 of the indoor moving device 60, and the like. , and controls these cooperative operations. Control by the operation control device 70 will be described later.
- 6A and 6B are drawings showing a decontaminating liquid discharge device used in a mobile decontamination device, and are (C) a plan view and (D) a front view.
- a traveling device 62 of an indoor moving device 60 is integrally joined to the rear surface of the decontaminating liquid discharging device 50 .
- C1 is a plan view of the outer surface of the travel device 62
- C2 is a plan view of the internal cross section of the decontaminating liquid discharge device 50.
- the travel device 62 is the LM block of the LM guide as described above, it is a general device and its details are omitted.
- the mist generator 51 is operated by a drive circuit 52, converts the hydrogen peroxide water sent from the hydrogen peroxide water tank 54 through the fine tube 54a into hydrogen peroxide mist, and discharges the mist from the mist outlet 55 to the chamber 11. Release inside the working area 14 .
- the hydrogen peroxide solution is temporarily stored in the hydrogen peroxide solution tank 54 when the decontaminating solution discharge device 50 travels along the travel path 61 and is connected to the solution supply station 45 .
- the battery 53 that drives the drive circuit 52 may be either a replaceable cartridge type or a rechargeable type. Moreover, in the case of a rechargeable type, any method such as wired or wireless power supply may be used.
- the battery 53 is charged when the decontaminating liquid discharge device 50 is driven by the traveling device 62 and connected to the liquid supply station 45 .
- the hydrogen peroxide solution tank 54 provided in the decontaminating solution discharging device 50 is replaced with a replaceable hydrogen peroxide solution filled with hydrogen peroxide solution.
- a cartridge type tank may be used. In this way, by making the battery 53 and the hydrogen peroxide water tank 54 replaceable cartridge type, there is no need for a charging device or a decontamination liquid supply device, so it is possible to decontaminate a small isolator or a pass box. can be used for
- the number of mist generators 51 and mist discharge ports 55 included in the decontaminating liquid discharge device 50 is not particularly limited.
- the decontaminating liquid discharge device 50 includes six mist generators 51 and six mist discharge ports 55 .
- four mist outlets 55 are provided in the front of the decontaminating liquid outlet 50, and one mist outlet 55 is provided in each of the oblique side surfaces on both sides.
- mist generator 51 used in the first embodiment will be described.
- 7A and 7B are drawings showing the mist generator of the decontaminating liquid discharge device, and are (E) a front view seen from inside the chamber and (F) a side cross-sectional view.
- the mist generating device 51 is an ultrasonic atomizing device having a piezoelectric vibrator 51a and a porous vibrating plate 51b, and is fitted in a mist discharge port 55. As shown in FIG.
- the porous vibration plate 51b has a substantially disk-shaped main body, and a plurality of fine holes for atomizing the hydrogen peroxide solution are provided through the front and back.
- the piezoelectric vibrator 51a is formed in a substantially annular plate shape and provided on the outer periphery of the porous diaphragm 51b, and vibrates the porous diaphragm 51b.
- the drive circuit 52 controls the vibration of the piezoelectric vibrator 51a.
- the perforated diaphragm 51b is attached with its front surface directed toward the inside of the chamber 11 to be decontaminated and its rear surface directed toward the inside of the decontaminating liquid discharge device 50 .
- hydrogen peroxide sent from the hydrogen peroxide water tank 54 through the thin tube 54a is discharged to the rear surface of the porous diaphragm 51b.
- FIG. 7(F) shows an outline of discharge and omits piping and the like.
- the hydrogen peroxide solution is discharged to the back surface of the perforated diaphragm 51b, becomes fine hydrogen peroxide mist through the plurality of fine holes of the perforated diaphragm 51b that vibrates ultrasonically, and becomes the decontamination target. It is discharged inside a certain chamber 11 and exerts a decontamination effect.
- the hole diameter and the number of fine holes of the porous vibration plate 51b are not particularly limited as long as the ultrasonic atomization effect and the sufficient amount of supply of hydrogen peroxide mist can be secured. It should be noted that it is generally preferred that the pores have a pore diameter of about 4 to 11 ⁇ m. Also, in FIG. 7(F), the surface of the perforated diaphragm 51b is arranged so as to emit the hydrogen peroxide mist in the horizontal direction (left direction in the figure), but the present invention is not limited to this. It may be discharged downward or upward depending on the position of arrangement.
- an ultrasonic atomization device including a piezoelectric vibrator 51a and a porous vibration plate 51b is adopted as the mist generator 51.
- the mist generating mechanism of the mist generator is not particularly limited.
- it may be a one-fluid spray nozzle, a piezo high-pressure injection device, an immersion type ultrasonic atomization device, a disc type atomization device, a disc mesh type atomization device, or the like, which directly atomizes a liquid into a mist.
- it may be an ejector or a two-fluid spray nozzle that turns a liquid into a mist with high-pressure air or the like.
- the control of the decontaminating liquid supply device 40, the decontaminating liquid discharging device 50, and the indoor movement device 60 by the operation control device 70 will be described using FIG.
- the control of each device by the operation control device 70 may be wireless control or wired control. Note that wireless control is employed in the first embodiment.
- the decontamination liquid supply device 40 operates. Specifically, the weighing device 42 and the liquid supply pump 44 provided in the decontaminating liquid supply device 40 are operated to weigh a predetermined amount of hydrogen peroxide water, and the liquid is supplied to the liquid supply station 45 via the liquid supply pipe 43. supply.
- the predetermined amount of hydrogen peroxide solution is set in advance according to the shape and capacity of the chamber 11 to be decontaminated and the capacity of the decontaminating liquid discharge device 50 .
- the decontaminating liquid discharge device 50 and the indoor movement device 60 are operated.
- the traveling device 62 of the indoor moving device 60 integrally joined to the back surface of the decontaminating liquid discharge device 50 travels on the traveling path 61, and the liquid supply connected to one end (side wall 11a side) of the traveling path 61 A decontaminating liquid discharge device 50 is joined to the station 45 .
- the hydrogen peroxide solution is filled into the hydrogen peroxide solution tank 54 of the decontaminating solution discharge device 50 from the solution supply station 45 .
- wireless power is supplied to the battery 53 of the traveling device 62 during this period.
- the decontaminating liquid discharge device 50 runs along the running path 61 by the operation of the running device 62 and runs inside the chamber 11 from the side wall 11a to the side wall 11b.
- the running of the decontaminating liquid discharge device 50 may be one-way running or round-trip running. Alternatively, the vehicle may travel while traversing a plurality of times. Further, the running of the decontaminating liquid discharge device 50 may be a constant speed running, or may be accelerated or decelerated. During this time, the decontaminating liquid discharge device 50 discharges hydrogen peroxide mist into the chamber 11, which is the chamber to be decontaminated, according to a program preset in the operation control device 70.
- the running speed of the decontamination liquid discharge device 50 and the discharge amount of hydrogen peroxide mist are operated according to a program preset in the operation control device 70. Further, the running speed at a predetermined position and the amount of hydrogen peroxide mist discharged may be adjusted according to the shape and capacity of the chamber 11 to be decontaminated. Although the running speed of the decontaminating liquid discharge device 50 is not particularly limited, it may be, for example, several cm/sec to several tens of cm/sec. On the other hand, the amount of hydrogen peroxide mist discharged is adjusted by the capacity and position of the chamber 11, the running speed of the decontamination liquid discharge device 50, and the like. /min may be used.
- the amount of hydrogen peroxide solution supplied to the decontamination liquid discharge device can be accurately controlled to the minimum required without adding a decontamination liquid discharge device, efficient decontamination can be performed according to the size of the chamber. Dyeing can be performed. Furthermore, since an accurate amount of hydrogen peroxide mist can be supplied in this way, a sufficient decontamination effect can be obtained with the minimum necessary amount of decontamination liquid, and the decontamination liquid can be used efficiently. can.
- the first embodiment it is possible to uniformly and completely decontaminate the room to be decontaminated and the equipment in the room. It is possible to provide a mobile decontamination device that is effective even in the case of decontamination.
- a mobile decontamination apparatus efficiently decontaminates a chamber to be decontaminated having a complicated shape, to which a plurality of isolator apparatuses are connected.
- FIG. 8 is an internal cross-sectional plan view showing a state in which the decontamination target room of the second embodiment is being decontaminated by a conventional method.
- the decontamination target room 100 is a complicated combination of four chambers 111a to 111d with different shapes and capacities. Note that the boundaries of each chamber are open and communicated. Equipment such as an air supply blower and an exhaust blower for each chamber is omitted.
- a mist discharge device and an ultrasonic vibration plate are integrated on the upper part of the inner wall surface 7
- Stationary decontamination devices 120a-120g are provided.
- an external storage tank 122 for storing hydrogen peroxide water to the fixed decontamination devices 120a to 120g.
- hydrogen peroxide water mist is emitted from the fixed decontamination devices 120a to 120g and diffused inside the decontamination target room 100 by ultrasonic waves.
- the stationary decontamination devices 120a to 120g in FIG. 8 are all stationary and not the mobile devices of the second embodiment.
- FIG. 8 is a plan view and not shown in detail, the hydrogen peroxide mist emitted from the fixed decontamination devices 120a to 120g falls while diffusing in a parabola.
- the particle size of the hydrogen peroxide mist has a distribution, and the hydrogen peroxide mist (not shown) having a large particle size cannot sufficiently reach a position distant from the fixed decontamination devices 120a to 120g. A nearby floor surface is wetted (not shown).
- the hydrogen peroxide mist which has a small particle size, has not sufficiently reached the central portions of the chambers 111a to 111d. Such a phenomenon is likely to occur in the case of a chamber to be decontaminated that has a complicated chamber shape.
- FIG. 9 is a plan view of an internal cross section showing a state in which a room to be decontaminated in the second embodiment is being decontaminated by a mobile decontamination apparatus according to the present invention.
- the contents of the decontamination target room 100 and the like are the same as in FIG. 8, and the same reference numerals are used.
- the fixed decontamination device provided in the conventional decontamination method of FIG. 8 is not provided.
- a mobile decontamination device 130 is provided above the inner wall surface inside the back wall 113a to 113d of each chamber 111a to 111d (within the work areas 114a to 114d) and outside the decontamination target room 100. .
- the mobile decontamination device 130 has a decontamination liquid supply device 140 , a decontamination liquid release device 150 , an indoor movement device 160 and an operation control device 170 .
- the mobile decontamination device 130 is provided with two decontaminating liquid discharge devices 150a and 150b and two traveling devices 162a and 162b, but it may be one device.
- the decontamination liquid supply device 140 includes an external storage tank 141 , a weighing device 142 , a liquid supply pipe 143 , a liquid supply pump 144 , and a liquid supply station 145 .
- the external storage tank 141 , the weighing device 142 , the liquid supply pipe 143 and the liquid supply pump 144 are provided outside the decontamination target room 100 .
- the liquid supply station 145 is provided on the inner wall surface inside the side wall 115a of the chamber 111a (within the working area 114a).
- the external storage tank 141 and the liquid supply station 145 are communicated by a liquid supply pipe 143 .
- a predetermined amount of hydrogen peroxide solution weighed by the weighing device 142 is supplied to the liquid supply station 145 by the liquid supply pump 144 .
- the decontaminating liquid discharge devices 150a and 150b discharge hydrogen peroxide mist while moving inside the work areas 114a to 114d of the respective chambers 111a to 111d.
- the structures of the decontaminating liquid discharge devices 150a and 150b are the same as those of the first embodiment.
- the indoor moving device 160 includes a travel path 161 and travel devices 162a and 162b.
- the running path 161 extends horizontally from the side wall 115a of the chamber 111a to the side wall 115d of the chamber 111d on the upper part of the inner wall surface inside the rear walls 113a to 113d of the chambers 111a to 111d (within the working areas 114a to 114d). is provided.
- One end (side wall 115 a side) of the running path 161 is connected to the liquid supply station 145 .
- traveling devices 162a and 162b are integrally joined to the rear surfaces of the decontaminating liquid discharging devices 150a and 150b, and the decontaminating liquid discharging devices 150a and 150b are moved along the traveling path 161 between the side wall 115a and the side wall 115d. to run.
- the structure and running mechanism of the running path 161 and the running devices 162a and 162b are the same as those of the first embodiment.
- the operation control device 170 includes the weighing device 142 and the liquid supply pump 144 of the decontaminating liquid supply device 140, the drive circuit of the decontaminating liquid discharge devices 150a and 150b (similar to the first embodiment), and the traveling device 162a of the indoor moving device 160. , 162b, etc., and their coordinated operations. Note that the control by the operation control device 170 is the same as in the first embodiment.
- the mobile decontamination apparatus in the mobile decontamination apparatus according to the second embodiment, a plurality of isolator devices are connected, and the chamber to be decontaminated, which has a complicated shape, is replaced by one mobile decontamination apparatus. Efficient decontamination can be achieved with decontamination equipment.
- the amount of hydrogen peroxide solution supplied to the decontaminating liquid discharge device can be accurately controlled to the necessary minimum, efficient decontamination can be performed according to the size of the room to be decontaminated.
- an accurate amount of hydrogen peroxide mist can be supplied in this way, a sufficient decontamination effect can be obtained with the minimum necessary amount of decontamination liquid, and the decontamination liquid can be used efficiently. can.
- the second embodiment it is possible to uniformly and completely decontaminate the room to be decontaminated and the equipment in the room. It is possible to provide a mobile decontamination device that is effective even in the case of decontamination.
- FIG. 10 is a plan view of an internal cross section showing a state in which a room to be decontaminated according to the third embodiment is being decontaminated by a conventional method.
- the room to be decontaminated 200 is bent into an L shape as a whole, and the shapes of the work areas 214a to 214g are also complicated. Devices and articles installed in each work area, air supply blowers and exhaust blowers in each work area, and freeze-drying equipment connected to each work area 214a to 214g are omitted.
- 16 fixed decontamination devices 220a to 220p which are integrated with a mist emitting device and an ultrasonic vibration plate, are installed.
- an external storage tank 222 and a weighing device 223 that supply hydrogen peroxide water to the fixed decontamination devices 220a to 220p, liquid supply pipes 224a to 224p, and liquid supply pumps (not shown). ) are provided.
- the hydrogen peroxide water mist is emitted from the fixed decontamination devices 220a to 220p and diffuses inside the room 200 to be decontaminated by ultrasonic waves.
- the fixed decontamination devices 220a to 220p shown in FIG. 10 are all fixed, not the mobile devices of the third embodiment.
- the hydrogen peroxide mist emitted from the fixed decontamination devices 220a to 220p falls while diffusing in a parabola. Further, even when 16 fixed decontamination devices 220a to 220p are provided, hydrogen peroxide mist (not shown) with a large particle size separates from each fixed decontamination device 220a to 220p. It may not be able to reach the desired position sufficiently, and the floor surface in the vicinity may be wet (not shown). On the other hand, hydrogen peroxide mist (not shown) having a small particle size may not be able to sufficiently reach the center of each working area 214a-214g. Such a phenomenon is likely to occur in the case of a room to be decontaminated consisting of a very large aseptic isolator.
- FIG. 11 is a plan view of an internal cross section showing a state in which a room to be decontaminated in the third embodiment is being decontaminated by a mobile decontamination apparatus according to the present invention.
- the contents of the decontamination target room 200 and the like are the same as in FIG. 10, and the same reference numerals are used.
- the fixed decontamination device provided in the conventional decontamination method of FIG. 10 is not provided. Instead, five mobile decontamination devices 230a to 230e are provided on the upper part of the inner wall and outside the decontamination target room 200 over the entire area of the decontamination target room 200 (work areas 214a to 214g). .
- the mobile decontamination devices 230a to 230e have decontamination liquid supply devices 240 (shared by 5 devices), decontamination liquid discharge devices 250a to 250e, indoor moving devices 260a to 260e, and operation control devices 270 (shared by 5 devices). are doing.
- the decontamination liquid supply device 240 includes an external storage tank 241, a weighing device 242, liquid supply pipes 243a to 243d, liquid supply pumps (not shown), and liquid supply stations 245a to 245d.
- the external storage tank 241, the weighing device 242, the liquid supply pipes 243a to 243d, and the liquid supply pump (not shown) are provided outside the room 200 to be decontaminated.
- the liquid supply stations 245a to 245d are distributed above the inner wall surfaces of the working areas 214a to 214g (see FIG. 11).
- the external storage tank 241 and the liquid supply stations 245a to 245d are communicated by liquid supply pipes 243a to 243d.
- a predetermined amount of hydrogen peroxide solution weighed by the weighing device 242 is supplied to the liquid supply stations 245a to 245d by a liquid supply pump (not shown).
- the five decontamination liquid discharge devices 250a to 250e discharge hydrogen peroxide mist while moving inside the room 200 to be decontaminated.
- the structures of the decontaminating liquid discharge devices 250a to 250e are the same as those of the first embodiment.
- the five indoor moving devices 260a-260e are provided with five traveling paths 261a-261e and traveling devices 262a-262e.
- the running paths 261a to 261e are provided horizontally over the entire area above the inner wall surfaces of the work areas 214a to 214g (see FIG. 11).
- Liquid supply stations 245a to 245d are connected to predetermined portions of the running paths 261a to 261e (see FIG. 11).
- the traveling devices 262a to 262e are integrally joined to the back surface of the decontaminating liquid discharging devices 250a to 250e, and the decontaminating liquid discharging devices 250a to 250e move inside the work areas 214a to 214g along the traveling paths 261a to 261e. Run on the upper part of the wall.
- the structures and running mechanisms of the running paths 261a to 261e and the running devices 261a to 261e are the same as those of the first embodiment.
- the operation control device 270 (shared by 5 units) includes the weighing device 242 and the liquid supply pump (not shown) of the decontaminating liquid supply device 240, and the drive circuit of the decontaminating liquid discharge devices 250a to 250e (same as in the first embodiment). , each operation of the traveling devices 261a to 261e of the indoor moving devices 260a to 260e, and their coordinated operations. Note that the control by the operation control device 270 is the same as in the first embodiment.
- the mobile decontamination apparatus in the mobile decontamination apparatus according to the third embodiment, at a pharmaceutical manufacturing site, equipment for filling vials with pharmaceuticals, equipment for freeze-drying pharmaceuticals filled in vials, etc. It is possible to efficiently decontaminate with multiple mobile decontamination equipment using a very large aseptic isolator with which is connected as a room to be decontaminated.
- efficient decontamination can be performed according to the size of the room to be decontaminated.
- an accurate amount of hydrogen peroxide mist can be supplied in this way, a sufficient decontamination effect can be obtained with the minimum necessary amount of decontamination liquid, and the decontamination liquid can be used efficiently. can.
- the third embodiment it is possible to uniformly and completely decontaminate the room to be decontaminated and the equipment in the room. It is possible to provide a mobile decontamination device that is effective even in the case of decontamination.
- a replaceable cartridge type may be used.
- a chamber with a large planar aspect ratio, a chamber with a complex shape connected to a plurality of isolator devices, and a very large aseptic isolator are decontaminated.
- a mobile decontamination apparatus may be used to efficiently decontaminate the inside of a relatively narrow space such as a pass box.
- the travel path of the indoor moving device is provided on the inner wall surface of the chamber.
- the running path may be provided in the center of the ceiling of the chamber.
- the mist outlets of the decontaminating liquid discharge device may be provided not only on the front surface of the device, but also on both the front and back surfaces and the bottom surface.
- the travel path of the indoor moving device is provided on the inner wall surface of the chamber.
- the running path may be provided at an arbitrary position such as the lower wall surface of the chamber or the surface of the workbench.
- the drive circuit provided in the decontaminating liquid discharge device controls the operation of the mist generator.
- the driving device for controlling the driving of the traveling device is provided in the traveling device.
- the present invention is not limited to this, and a drive circuit for controlling the driving of the traveling device may also be provided inside the decontaminating liquid discharge device.
- a driving circuit for controlling both the mist generator and the driving device may be provided inside the decontaminating liquid discharging device or inside the driving device.
- the power supply device (battery) provided in the decontaminating liquid discharge device operates the drive circuit.
- the present invention is not limited to this, and a power supply device for operating the drive circuit may be provided inside the travel device.
- a power supply device for operating both the mist generator and the driving device may be provided inside the decontaminating liquid discharging device or inside the driving device.
- 10 isolator device, 11... chamber, 11a to 11d, 112a to 112d, 113a to 113d ... wall surfaces, 12... Air supply blower, 13... Exhaust blower, 14, 114a to 114d, 214a to 214g... work area, 15... air supply fan, 16... filter unit, 17... screen mesh current plate, 18a to 18c ... articles, 20a to 20c ... mist release device, 21a to 21c ... ultrasonic diaphragm, 22, 41, 122, 141, 222, 241 ... external storage tanks, 23, 123, 223 ...
- Battery power supply device
- Hydrogen peroxide water tank decontamination liquid tank
- 54a narrow tube
- 55... mist outlet 60, 160, 260a to 260e ... indoor movement device, 61, 161, 261a to 261e ... traveling road, 62, 162a, 162b, 262a to 262e ... traveling device, 70, 170, 270 ... operation control device, 100, 200 ... room to be decontaminated, 111a to 111d ... chambers, 120a-120g, 220a-220p... Fixed decontamination equipment.
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Abstract
Description
除染用ミストを使用して除染対象室(11)の内部を除染する除染装置であって、
除染液放出装置(50)と、室内移動装置(60)とを有し、
前記除染液放出装置は、除染液タンク(54)と、除染液をミスト化する1又は2以上のミスト発生装置(51)と、当該ミスト発生装置の駆動を制御する駆動回路(52)と、前記ミスト発生装置で発生した除染剤のミストを前記除染対象室の内部に放出する1又は2以上のミスト放出口(55)とを備え、
前記室内移動装置は、前記除染対象室の内部に配設された走行路(61)と、当該走行路に沿って前記除染液放出装置を走行させる走行装置(62)とを備えていることを特徴とする。
予め除染液を貯留しておく外部貯留槽と、当該外部貯留槽(41)と前記除染液放出装置との間で除染液を給液する給液配管(43)とを備えた除染液供給装置(40)を有し、
前記除染液供給装置は、秤量装置と給液ポンプとを具備して、所定量の除染液を秤量し前記給液配管を介して前記除染液放出装置に給液することを特徴とする。
前記除染液供給装置、除染液放出装置及び室内移動装置の作動を制御する作動制御装置(70)を備え、
前記作動制御装置は、予め設定されたプログラムに沿って、
前記除染液供給装置が具備する前記秤量装置及び前記給液ポンプを制御して、所定量の除染液を秤量して前記除染液放出装置ヘの給液量を調整し、
前記除染液放出装置が具備する前記駆動回路を制御して、ミストの放出量を調整し、
前記室内移動装置が具備する前記走行装置を制御して、前記除染対象室の内部における前記除染液放出装置の位置を調整することにより、
前記除染対象室の位置と当該位置におけるミスト放出量とを制御することを特徴とする。
前記外部貯留槽と前記除染液放出装置とを連通する前記給液配管の管路に所定量の除染液を一時的に貯える給液ステーション(45)を備え、
前記作動制御装置は、前記除染液供給装置から前記給液ステーションへの給液、及び、当該給液ステーションから前記除染液放出装置への給液を制御することを特徴とする。
前記除染液放出装置が具備する前記除染液タンクは、所定量の除染液を充填した交換可能なカートリッジ式タンクであることを特徴とする。
前記除染液放出装置又は前記室内移動装置には、交換可能なカートリッジ式電源装置が具備されていることを特徴とする。
前記ミスト発生装置は、圧電振動子(51a)と、当該圧電振動子の振動により除染液を霧化する複数の微細孔が表裏を貫通して設けられた多孔振動板(51b)とを備えた超音波霧化装置であって、
当該多孔振動板が前記ミスト放出口を構成していることを特徴とする。
図5は、本発明の第1実施形態に係る移動式除染装置を使用してアイソレーター装置のチャンバーの内部を過酸化水素ミストで除染している状態を示す内部断面図であって、(A)正面図、(B)平面図である。
本第2実施形態においては、複数のアイソレーター装置が接続されたチャンバーの形状が複雑な除染対象室を対象として、移動式除染装置で効率よく除染する場合について説明する。
本第3実施形態においては、医薬品製造現場において、医薬品をバイアル等に充填する設備や、バイアルに充填された医薬品を凍結乾燥するための設備などが連設された非常に大型の無菌アイソレーターを除染対象室として、複数台の移動式除染装置で効率よく除染する場合について説明する。
(1)上記各実施形態においては、広い領域や形状が複雑な除染対象室の除染について説明した。しかし、しかし、これに限定されるものではなく、小型のアイソレーターやパスボックスなどの除染に利用するようにしてもよい。
(2)上記各実施形態においては、移動式除染装置の除染液放出装置への過酸化水素水の供給に給液ステーションを介して行っている。しかし、これに限定されるものではなく、外部貯留槽から直接、除染液放出装置に供給するようにしてもよい。
(3)上記各実施形態においては、駆動回路用の電源装置(バッテリー)として、充電式のものを使用した。しかし、これに限定されるものではなく、いずれも交換可能なカートリッジ式のものを使用するようにしてもよい。
(4)上記各実施形態においては、広くて平面アスペクト比が大きいチャンバーや、複数のアイソレーター装置が接続されたチャンバーの形状が複雑な除染対象室や、非常に大型の無菌アイソレーターを除染対象室として、移動式除染装置で効率よく除染する場合について説明した。しかし、これに限定されるものではなく、パスボックスなどの比較的狭い空間においても、その内部を効率よく除染するために移動式除染装置を使用するようにしてもよい。
(5)上記各実施形態においては、移動式除染装置として使用するが、当該装置の除染液放出装置をパーティクルカウンターの吸引プローブに取り替えることにより、HEPAフィルタのリーク試験に転用することができる。
(6)上記各実施形態においては、室内移動装置の走行路は、チャンバーの内部壁面上部に設けられている。しかし、これに限定されるものではなく、走行路をチャンバーの天井部中央に設けるようにしてもよい。この場合には、除染液放出装置のミスト放出口は、装置の正面だけではなく、表裏両面及び下面に設けるようにしてもよい。
(7)上記各実施形態においては、室内移動装置の走行路は、チャンバーの内部壁面上部に設けられている。しかし、これに限定されるものではなく、走行路をチャンバーの壁面下方或いは作業台表面など任意の位置に設けるようにしてもよい。
(8)上記各実施形態においては、除染液放出装置が具備する駆動回路がミスト発生装置の作動を制御する。一方、走行装置の駆動を制御する駆動装置は、走行装置に配備されているものとした。しかし、これに限定されるものではなく、走行装置の駆動を制御する駆動回路も除染液放出装置の内部に配備するようにしてもよい。更に、ミスト発生装置と駆動装置との両方を制御する駆動回路を除染液放出装置の内部又は駆動装置の内部に配備するようにしてもよい。
(9)上記各実施形態においては、除染液放出装置が具備する電源装置(バッテリー)は、駆動回路を作動させるものとした。しかし、これに限定されるものではなく、駆動回路を作動させる電源装置を走行装置の内部に配備するようにしてもよい。更に、ミスト発生装置と駆動装置との両方を作動させる電源装置を除染液放出装置の内部又は駆動装置の内部に配備するようにしてもよい。
11a~11d,112a~112d,113a~113d…壁面、
12…給気用ブロワー、13…排気用ブロワー、
14,114a~114d,214a~214g…作業領域、15…給気用ファン、
16…フィルタユニット、17…スクリーンメッシュ整流板、
18a~18c…物品、20a~20c…ミスト放出装置、
21a~21c…超音波振動盤、
22,41,122,141,222,241…外部貯留槽、
23,123,223…秤量装置、
24a~24c,43,124a~124g,143,224a~224p,243a~243d…給液配管、
25a~25c,44,144,125a~125g…給液ポンプ、
30,130,230a~230e…移動式除染装置、
40,140,240…除染液供給装置、42,142,242…秤量装置、
45,145,245a~245d…給液ステーション、
50,150a,150b,250a~250e…除染液放出装置、
51…ミスト発生装置、51a…圧電振動子、51b…多孔振動板、52…駆動回路、
53…バッテリー(電源装置)、54…過酸化水素水タンク(除染液タンク)、
54a…細管、55…ミスト放出口、
60,160,260a~260e…室内移動装置、
61,161,261a~261e…走行路、
62,162a,162b,262a~262e…走行装置、
70,170,270…作動制御装置、100,200…除染対象室、
111a~111d…チャンバー、
120a~120g,220a~220p…固定式除染装置。
Claims (7)
- 除染用ミストを使用して除染対象室の内部を除染する除染装置であって、
除染液放出装置と、室内移動装置とを有し、
前記除染液放出装置は、除染液タンクと、除染液をミスト化する1又は2以上のミスト発生装置と、当該ミスト発生装置の駆動を制御する駆動回路と、前記ミスト発生装置で発生した除染剤のミストを前記除染対象室の内部に放出する1又は2以上のミスト放出口とを備え、
前記室内移動装置は、前記除染対象室の内部に配設された走行路と、当該走行路に沿って前記除染液放出装置を走行させる走行装置とを備えていることを特徴とする移動式除染装置。 - 予め除染液を貯留しておく外部貯留槽と、当該外部貯留槽と前記除染液放出装置との間で除染液を給液する給液配管とを備えた除染液供給装置を有し、
前記除染液供給装置は、秤量装置と給液ポンプとを具備して、所定量の除染液を秤量し前記給液配管を介して前記除染液放出装置に給液することを特徴とする請求項1に記載の移動式除染装置。 - 前記除染液供給装置、除染液放出装置及び室内移動装置の作動を制御する作動制御装置を備え、
前記作動制御装置は、予め設定されたプログラムに沿って、
前記除染液供給装置が具備する前記秤量装置及び前記給液ポンプを制御して、所定量の除染液を秤量して前記除染液放出装置ヘの給液量を調整し、
前記除染液放出装置が具備する前記駆動回路を制御して、ミストの放出量を調整し、
前記室内移動装置が具備する前記走行装置を制御して、前記除染対象室の内部における前記除染液放出装置の位置を調整することにより、
前記除染対象室の位置と当該位置におけるミスト放出量とを制御することを特徴とする請求項2に記載の移動式除染装置。 - 前記外部貯留槽と前記除染液放出装置とを連通する前記給液配管の管路に所定量の除染液を一時的に貯える給液ステーションを備え、
前記作動制御装置は、前記除染液供給装置から前記給液ステーションへの給液、及び、当該給液ステーションから前記除染液放出装置への給液を制御することを特徴とする請求項3に記載の移動式除染装置。 - 前記除染液放出装置が具備する前記除染液タンクは、所定量の除染液を充填した交換可能なカートリッジ式タンクであることを特徴とする請求項1に記載の移動式除染装置。
- 前記除染液放出装置又は前記室内移動装置には、交換可能なカートリッジ式電源装置が具備されていることを特徴とする請求項1に記載の移動式除染装置。
- 前記ミスト発生装置は、圧電振動子と、当該圧電振動子の振動により除染液を霧化する複数の微細孔が表裏を貫通して設けられた多孔振動板とを備えた超音波霧化装置であって、
当該多孔振動板が前記ミスト放出口を構成していることを特徴とする請求項1~6のいずれか1つに記載の移動式除染装置。
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2022
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- 2022-10-18 KR KR1020247014472A patent/KR20240089206A/ko unknown
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JP2000005286A (ja) * | 1998-06-24 | 2000-01-11 | Sanwa Service Kk | 衛生用自動噴霧消毒装置 |
JP2003339829A (ja) | 2002-05-27 | 2003-12-02 | Shibuya Kogyo Co Ltd | 殺菌液気化装置 |
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JP2020156970A (ja) | 2019-03-28 | 2020-10-01 | 株式会社エアレックス | 除染装置 |
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