JP5475320B2 - Isolation chamber forming apparatus and isolation chamber forming method - Google Patents

Description

  The present invention relates to an isolation chamber forming apparatus and an isolation chamber forming method for forming an isolation chamber in a negative pressure atmosphere.

  For example, an infected patient infected with the new influenza is housed in an infectious disease bed, which is a special bed of a specialized hospital (designated medical institution for infectious diseases), and is completely isolated. When an infected patient visits a general hospital that does not have an infectious disease bed, the infected patient is transferred to a specialized hospital. Until the transfer to a specialized hospital, the infected patient is housed in a separated space (eg, a hospital room) within the hospital. However, isolation of infected patients is insufficient in hospital rooms and the like, and there is a risk of air infection to others.

  Therefore, Patent Document 1 discloses a technique for forming a negative pressure atmosphere isolation chamber (patient storage space 18 in Patent Document 1). Since the inside of the isolation room (patient storage space 18) has a negative pressure atmosphere, the contaminated air does not leak to the outside. The contaminated air in the isolation room (patient storage space 18) is purified by ozone and guided to the outside. That is, according to the technique disclosed in Patent Document 1, even in a general hospital, it is possible to easily isolate infected patients and prevent air infection.

  The upper cover 17 and the mat 20 that form the isolation chamber (patient storage space 18) disclosed in Patent Document 1 are contaminated by accommodating infected patients. Therefore, it is appropriate to remove the upper cover 17 and the like and incinerate after the accommodated infected patient leaves (see, for example, paragraph 0054 of Patent Document 2).

JP-A-2005-34582 JP 2004-141239 A Japanese Patent Laid-Open No. 11-146905

  A device that sucks air in an isolation chamber to form a negative pressure atmosphere is contaminated with contaminated air when it is arranged in the isolation chamber. Such devices are not subject to incineration, and if they become contaminated, they cannot be used again unless they are disinfected. Thus, for example, it is conceivable to disinfect by ozone fumigation (see, for example, Patent Document 3). However, equipment for ozone fumigation must be prepared and installed separately, which is very complicated.

  At this time, it is conceivable that the devices that perform intake are arranged outside the isolation chamber so as not to be contaminated by the contaminated air in the isolation chamber (see Patent Document 2). However, the equipment arranged outside the isolation room becomes an obstacle for a rescue worker working outside the isolation room, and there is a possibility that the workability when the infected patient is rescued is deteriorated.

  An object of the present invention is to make it possible to easily and repeatedly use a device that performs intake to form a negative pressure atmosphere even when the device is installed in an isolation room.

  The isolation chamber forming apparatus of the present invention includes a frame, a sheet that covers the frame to form an accommodation space for accommodating a patient separated from the outside, and a communication space for communicating the accommodation space and the outside. And a tent that allows air to move between the housing space and the outside, an air purifying fumigator including a housing provided with an intake port and an exhaust port, and a housing built in the housing for generating ozone. The first ozone generator, the first ozone decomposition catalyst that changes ozone into oxygen, and the HEPA filter that collects fine particles, and the first ozone generator generates air by sucking air from the intake port. An air purifier that mixes with ozone and sucks air that passes through the first ozonolysis catalyst and the HEPA filter and is discharged from the exhaust port; and is built in the housing. A second ozone generator that generates ozone and a second ozone decomposition catalyst that converts ozone into oxygen, and ozone release that releases the ozone generated by the second ozone generator from the exhaust port; A fumigation part that sucks ozone from the intake port and passes through the second ozone decomposition catalyst and discharges ozone from the exhaust port; and covers the exhaust port and discharges the gas discharged from the exhaust port. A cover forming a cover space to be accommodated; one end inserted into the communication space from the accommodation space side; and another end connected to the cover covering the exhaust port of the air purifier fumigator located in the accommodation space. And a first duct for guiding the gas stored in the cover space to the outside of the tent, one end disposed in the storage space, and the air purifier positioned in the storage space A second duct for guiding the gas contained in the cover space to the housing space, and the first duct and the second duct are selected. And a switching mechanism that opens and closes uniformly.

The isolation chamber forming apparatus of the present invention viewed from another aspect communicates the frame, a sheet that covers the frame to form a storage space for storing a patient separated from the outside, and the storage space and the outside. An air cleaning fumigator having a communication space, and a tent in which air is movable between the housing space and the outside, and a housing provided with an intake port, a first exhaust port, and a second exhaust port And a first ozone generator that generates ozone, a first ozone decomposition catalyst that changes ozone into oxygen, and a HEPA filter that collects particulates, and sucks air from the intake port. Then, the air that is mixed with the ozone generated by the first ozone generator, passes through the first ozone decomposition catalyst and the HEPA filter, and is exhausted from the first exhaust port to perform air suction. Ozone generated by the second ozone generator, comprising a purification unit, a second ozone generator that generates ozone and a second ozone decomposition catalyst that changes ozone into oxygen. A fumigation section that performs ozone release from the second exhaust port, and ozone recovery by sucking ozone from the intake port and passing through the second ozone decomposition catalyst to be discharged from the first exhaust port; The air purification fumigator located in the accommodation space has one end disposed at the first exhaust port and the other end inserted into the communication space from the accommodation space side, and is discharged from the first exhaust port. comprising a duct for guiding the gas to the outside of the tent, and the air purifier fumigation apparatus transmits an instruction signal including a fumigation instruction signal instructing a negative pressure command signal and ozone fumigation for instructing formation of the negative pressure atmosphere A communication unit that receives the instruction signal transmitted by the mote controller, and when it is determined that the instruction signal received by the communication unit is the negative pressure instruction signal, the air cleaning unit performs the air suction, A control unit that, when it is determined that the instruction signal received by the communication unit is the fumigation instruction signal, causes the fumigation unit to perform the ozone recovery after the ozone release.

The isolation chamber forming apparatus of the present invention viewed from another aspect communicates the frame, a sheet that covers the frame to form a storage space for storing a patient separated from the outside, and the storage space and the outside. An air cleaning fumigator having a communication space and a housing in which air is movable between the accommodation space and the outside, and a housing provided with an intake / exhaust port and an exhaust port, and built in the housing And a first ozone generator that generates ozone, a first ozone decomposition catalyst that changes ozone into oxygen, and a HEPA filter that collects fine particles, and sucks air from the intake and exhaust ports to thereby extract the first An air purifying unit for sucking air that is mixed with ozone generated by the ozone generator and passes through the first ozone decomposition catalyst and the HEPA filter and discharged from the exhaust port; A second ozone generator that generates ozone and a second ozone decomposition catalyst that changes ozone into oxygen, and the ozone generated by the second ozone generator A fumigation part for performing ozone release discharged from the exhaust port, and collecting ozone discharged from the exhaust port by sucking ozone from the intake / exhaust port and passing through the second ozone decomposition catalyst; A duct having one end arranged at the exhaust port of the air purifier and the other end inserted into the communication space from the housing space side, and guiding the gas discharged from the exhaust port to the outside of the tent; wherein the air purifier fumigation machine and send the remote controller transmits an instruction signal including a fumigation instruction signal instructing a negative pressure command signal and ozone fumigation for instructing formation of the negative pressure atmosphere When the communication unit that receives the instruction signal and the instruction signal received by the communication unit are determined to be the negative pressure instruction signal, the air purifier performs the air suction, and the communication unit receives A control unit that, when it is determined that the instruction signal is the fumigation instruction signal, causes the fumigation unit to perform ozone recovery after the ozone release.

  The isolation chamber forming method of the present invention includes a frame and a sheet that covers the frame to form an accommodation space for accommodating a patient separated from the outside, and a communication space for communicating the accommodation space and the outside. The housing space in the tent in which air can move between the housing space and the outside is provided with a housing provided with an intake port and an exhaust port, and a first ozone generator for generating ozone and ozone is changed to oxygen A first ozone decomposing catalyst to be collected and a HEPA filter for collecting fine particles, and the first ozone decomposing catalyst mixed with ozone generated by the first ozone generator by sucking air from the intake port. And the HEPA filter, an air purifier for sucking air discharged from the exhaust port, a second ozone generator for generating ozone, and ozone into oxygen A second ozone decomposition catalyst, which is provided with a second ozone decomposition catalyst that releases ozone generated by the second ozone generator from the exhaust port and sucks ozone from the intake port. A step of arranging an air purifying fumigator built in the housing, and a gas exhausted from the exhaust port covering the exhaust port and containing the gas discharged from the exhaust port. A cover that forms a cover space that covers the exhaust port of the air cleaning fumigator located in the housing space, and the other end of the first duct having one end connected to the cover is connected to the communication space from the housing space side. And the other end of the second duct having one end connected to the cover in the previous period is disposed in the accommodation space, and the first duct and the second duct are alternatively opened and closed. After the first duct is opened by the switching mechanism, the air purifier performs the air suction so that air is accommodated in the cover space, and the air accommodated in the cover space is released. A step of guiding a duct to the outside of the tent; and opening the second duct by the switching mechanism, causing the fumigation unit to release the ozone, and storing the ozone in the cover space. Introducing the ozone contained in the space into the accommodation space through the opened second duct, and allowing the switching mechanism to open the first duct and allowing the fumigation unit to perform the ozone recovery. And oxygen is stored in the cover space, and the oxygen stored in the cover space is guided to the outside of the tent through the opened first duct.

  According to another aspect of the present invention, the isolation chamber forming method includes a frame and a frame for covering the frame to form a storage space for storing a patient separated from the outside, and a communication for communicating the storage space and the outside. The housing space in the tent having a space and in which the air can move between the housing space and the outside is provided with a housing provided with an intake port, a first exhaust port, and a second exhaust port, and generates ozone. A first ozone generator for generating ozone, a first ozone decomposition catalyst for converting ozone into oxygen, and a HEPA filter for collecting fine particles, and generating the first ozone generator by sucking air from the intake port An ozone purifier, and an air purifying unit for sucking air that is mixed with the generated ozone, passes through the first ozone decomposition catalyst and the HEPA filter, and is discharged from the first exhaust port, and An ozone generator configured to release ozone generated by the second ozone generator from the second exhaust port and an intake port provided with the second ozone generator and a second ozone decomposition catalyst that converts ozone into oxygen. A step of disposing an air purifying fumigator in which the fumigation part that sucks ozone and passes through the second ozone decomposition catalyst and discharges ozone from the first exhaust port is incorporated in the housing; One end of the duct is disposed in the first exhaust port of the air purification fumigator located in the accommodation space, and the other end of the duct is inserted into the communication space from the accommodation space side, and the air is supplied to the air purification unit. Causing the air discharged from the first exhaust port to be sucked to the outside of the tent, causing the fumigation unit to release the ozone, and causing the fumigation unit to Comprising a step of oxygen discharged from the first exhaust port to carry out the Zon recovery led to the outside of the tent to the duct, the.

  According to another aspect of the present invention, the isolation chamber forming method includes a frame and a frame for covering the frame to form a storage space for storing a patient separated from the outside, and a communication for communicating the storage space and the outside. A first ozone generation unit that includes a housing provided with an intake port and an exhaust port in the housing space in the tent having a space and in which air is movable between the housing space and the outside, and generates ozone. And a first ozonolysis catalyst that converts ozone into oxygen and a HEPA filter that collects fine particles, and is mixed with ozone generated by the first ozone generator by sucking air from the intake and exhaust ports And an air purifier for sucking air that passes through the first ozone decomposition catalyst and the HEPA filter and exhausts from the exhaust port, and second ozone generation for generating ozone. And a second ozone decomposition catalyst for changing ozone into oxygen, and releasing ozone generated by the second ozone generator from the intake and exhaust ports and sucking ozone from the intake and exhaust ports. A step of disposing an air purifying fumigator built in the housing with a fumigation unit that passes through the second ozone decomposition catalyst and performs ozone recovery discharged from the exhaust port; and one end of a duct in the housing space A step of inserting the other end of the duct into the communication space from the housing space side, and letting the air purifier perform the air suction from the exhaust port. A step of guiding the exhausted air to the outside of the tent through the duct, a step of causing the fumigation unit to release ozone from the intake and exhaust ports, and a step of causing the fumigation unit to perform the ozone recovery. And a step of lead to the outside of the tent the discharged oxygen in said duct from the exhaust port.

  According to the present invention, an air cleaning fumigator installed in a tent sucks air in the tent to form a negative pressure atmosphere while releasing ozone, and the released ozone is guided into the tent, Since the air cleaning fumigator in the tent is sterilized by ozone fumigation, it is not necessary to install a separate device for ozone fumigation, and air purification fumigation is a device for creating a negative pressure atmosphere. The machine can be used very simply and repeatedly.

It is a perspective view which shows the isolation chamber formation apparatus of 1st Embodiment. It is a vertical side view which shows an exhaust fan structure. It is a perspective view which shows the modification of an isolation chamber formation apparatus. It is a perspective view which shows the modification of an isolation chamber formation apparatus. It is a perspective view which shows an air purifying fumigator. It is a perspective view which shows the modification of an isolation chamber formation apparatus. It is a schematic diagram which shows the internal structure of the air cleaning fumigator and duct of 1st Embodiment. It is a schematic diagram which shows the modification of the internal structure of the air purification fumigator and duct of 1st Embodiment. It is a perspective view which shows the internal structure of a duct. It is a perspective view which shows the internal structure of the duct as a modification. It is a flowchart which shows the flow of the process which a control part performs. It is a perspective view which shows the isolation chamber formation apparatus of 2nd Embodiment. It is a flowchart which shows the flow of the process which a control part performs. It is a perspective view which shows the modification of the isolation chamber formation apparatus of 2nd Embodiment. It is sectional drawing which shows the duct inserted in communication space. It is a perspective view which shows the air cleaning fumigation machine of 3rd Embodiment. It is a schematic diagram which shows the internal structure of the air purification fumigator and duct in 3rd Embodiment. It is a flowchart which shows the flow of the process which a control part performs.

  A first embodiment will be described with reference to FIGS.

  FIG. 1 is a perspective view showing an isolation chamber forming apparatus 101 according to the first embodiment. The isolation room forming apparatus 101 has a tent 201 in which an accommodation space 203 for accommodating an infected patient is formed. The installation location of the tent 201 may be indoors (for example, in hospitals) or outdoors. That is, the tent 201 is installed in an arbitrary place according to the environment and purpose. Beds, stretchers, chairs and the like (not shown) for infected patients are arranged in the accommodation space 203 in the tent 201. When an infected patient is accommodated in the tent 201, the air in the tent 201 is contaminated.

  Furthermore, an air cleaning fumigator 301 is installed in the accommodation space 203 in the tent 201. The air purifier fumigator 301 forms a negative pressure atmosphere isolation chamber in the accommodation space 203 by sucking the air in the tent 201 and disinfects the tent 201 by ozone fumigation. The air sucked by the air cleaning fumigator 301 is cleaned and discharged, and is guided to the outside of the tent 201 through the duct 401.

  First, the tent 201 will be described. The tent 201 includes four vertical frames 202a standing at four corners and four horizontal frames 202b connecting the upper ends of adjacent vertical frames 202a. Hereinafter, the vertical frame 202a and the horizontal frame 202b may be collectively referred to as the frame 202. An example of the material of the frame 202 is stainless steel. The frame 202 is covered with a rectangular parallelepiped sheet 204 whose lower surface is open. The material of the sheet 204 is, for example, soft vinyl chloride, and another example is Teflon (registered trademark). The sheet 204 covers the frame 202 to form an accommodation space 203 separated from the outside.

  On one surface of the sheet 204 corresponding to the side surface of the tent 201, an entrance / exit 206 for a person including an infected patient to enter and exit the tent 201 is provided. The entrance / exit 206 can be opened and closed by a fastener, for example. The lower edge 207 of the sheet 204 is a free end that is not fixed to the bottom surface 205 of the accommodation space 203. Therefore, air can pass through the gap between the lower edge 207 and the bottom surface 205. That is, the tent 201 is non-tight. The bottom surface 205 may be a hospital floor or the ground depending on the installation location of the tent 201.

  A communication space 208 that is a circular cutout portion that penetrates the sheet 204 is formed on one surface of the sheet 204 that corresponds to the side surface of the tent 201. The communication space 208 communicates the storage space 203 with the outside of the tent 201. The shape of the communication space 208 is a shape that allows insertion of a first duct 402 described later.

  The seat 204 and the frame 202 are also contaminated by the contaminated air in the tent 201. Moreover, the air purifier fumigator 301 installed in the accommodation space 203 is also contaminated by the contaminated air.

  FIG. 2 is a vertical side view showing the exhaust fan structure 501. As shown in FIG. 1, an exhaust fan structure 501 that connects the accommodation space 203 and the outside of the tent 201 is provided on one surface of the sheet 204 corresponding to the side surface of the tent 201. As shown in FIG. 2, a rotatable fan 502 and an ozone decomposition catalyst 503 as a third ozone decomposition catalyst that changes ozone into oxygen are arranged in the exhaust fan structure 501. A motor 504 serving as a drive source for the fan 502 is also incorporated in the exhaust fan structure 501. Due to the rotation of the fan 502 driven by the motor 504, the gas in the tent 201 passes through the ozone decomposition catalyst 503 and is discharged to the outside of the tent 201.

  FIG. 3 is a perspective view showing a modification of the isolation chamber forming apparatus 101. The isolation chamber forming apparatus 101 in FIG. 3 is different from the isolation chamber forming apparatus 101 in FIG. 1 in the position of the exhaust fan structure 501. That is, the exhaust fan structure 501 of FIG. 3 is not provided integrally with the seat 204 as shown in FIG. 1 but is arranged in a space that appears by raising the lower edge 207 of the seat 204. In this case, the work of attaching the exhaust fan structure 501 to one surface of the seat 204 can be omitted.

  FIG. 4 is a perspective view showing a modification of the isolation chamber forming apparatus 101. The isolation chamber forming apparatus 101 in FIG. 4 is different from the isolation chamber forming apparatus 101 in FIG. That is, the tent 201 in FIG. 1 has a rectangular shape, whereas the tent 201 in FIG. 4 has a quadrangular pyramid shape. Since the four frames 202 extend radially from the apex toward the bottom surface 205, the sheet 204 covers the frame 202, thereby forming a quadrangular pyramid-shaped accommodation space 203. The tent 201 in FIG. 4 is considered to be used more easily or urgently because the bottom surface 205 is narrower than the tent 201 in FIG.

  The shape of the tent 201 is not limited to the example shown in FIGS. 1 and 4, and any shape can be used as long as the sheet 204 covers the frame 202 to form the accommodation space 203 separated from the outside. It may be a shape.

  Next, the air purification fumigator 301 will be described. The air purification fumigator 301 is disposed on the bottom surface 205 so as to be close to the side surface of the tent 201 (the surface on which the communication space 208 is formed).

  FIG. 5 is a perspective view showing the air cleaning fumigator 301. The air cleaning fumigator 301 has a vertically long housing 302. At the four corners of the lower surface of the housing 302, casters 305 that allow the air cleaning fumigator 301 to move are provided. An intake port 304 is provided on the front surface of the housing 302, and an exhaust port 303 is provided on the top of the housing 302. The exhaust port 303 and the intake port 304 have a door shape (so-called gallery) with blades attached in parallel. Further, on the front surface of the housing 302, a display device 342 for displaying information such as the state of the air cleaning fumigator 301 and an operation device 343 for directly operating the air cleaning fumigator 301 are provided. Further, a communication unit 307 for receiving various instruction signals transmitted from the remote controller 306 (see FIG. 1) is disposed on the front surface of the housing 302. As an instruction signal, the remote controller 306 causes the air purification fumigator 301 to inhale from the air inlet 304 to instruct the formation of a negative pressure atmosphere in the tent 201, and the air purification fumigator 301 to ozone fumigation. A fumigation instruction signal for instructing execution is transmitted. When the communication unit 307 receives the instruction signal, an instruction is input to the control unit 311 (see FIG. 7) of the air purification fumigator 301, and the control unit 311 drives and controls each unit of the air purification fumigator 301. That is, the air purification fumigator 301 can be remotely controlled by the remote controller 306. At this time, it is also possible to input an instruction to the control unit 311 by operating the operation device 343.

  Returning to the description of FIG. Next, the duct 401 will be described. The duct 401 has a cover 403 that covers the upper end side of the housing 302 including the exhaust port 303. The shape of the cover 403 is a shape that exposes the communication unit 307 and the operation device 343 while covering the upper end side of the housing 302.

  The cover 403 is connected to one end of each of a first duct 402 and a second duct 404 that are hollow cylindrical members. The other end of the first duct 402 is inserted into the communication space 208 of the sheet 204 and extends outside the tent 201. Thereby, the first duct 402 guides the exhaust from the exhaust port 303 to the outside of the tent 201. The other end of the second duct 404 is located in the tent 201. As a result, the second duct 404 guides the exhaust from the exhaust port 303 to the accommodation space 203 in the tent 201.

  FIG. 6 is a perspective view showing a modification of the isolation chamber forming apparatus 101. The isolation chamber forming apparatus 101 in FIG. 6 is different from the isolation chamber forming apparatus 101 in FIG. 1 in the form of the communication space 208 in the sheet 204 and the shape of the first duct 402. In the isolation chamber forming apparatus 101 of FIG. 6, the communication space 208 appears by lifting the lower edge 207 of the sheet 204 instead of the notch formed in advance in the sheet 204. The first duct 402 extending from the cover 403 is bent to reach the bottom surface 205, and then extends over the tent 201 by lifting the lower edge 207 of the sheet 204 across the bottom surface 205. That is, the first duct 402 lifts the lower edge 207 of the sheet 204, so that the communication space 208 is formed.

  FIG. 7 is a schematic diagram showing the internal structure of the air cleaning fumigator 301 and the duct 401 according to the first embodiment. First, the air cleaning fumigator 301 will be described.

  The air purifying fumigator 301 incorporates an air purifying unit 308 for purifying the air in the tent 201 and a fumigating unit 309 for ejecting ozone into the tent 201 and fumigating the housing 302. However, the air cleaning unit 308 and a part of the fumigation unit 309 are integrated, and functional parts are shared.

  The air purification fumigator 301 includes a control unit 311 that drives and controls each unit. In addition to the communication unit 307, the display device 342, and the operation device 343, the control unit 311 is connected to a dust sensor 341 that senses the degree of air contamination, and a motor 312 that is a drive source of a fan 329 described later. .

  An actuator 313 provided in the duct 401 is connected to the control unit 311. The actuator 313 is a drive source for a switching valve 405 described later. More specifically, a connector 381 is connected to the control unit 311, a connector 382 is connected to the actuator 313, and the connector 382 is inserted into the connector 381, whereby the actuator 313 is connected to the control unit 311.

  The controller 311 is connected to a negative ion generator 330 that generates negative ions, and a fluorescent lamp 323 is also connected via a lighting circuit (not shown).

  Although the connection state is not shown in the control unit 311, a cleaning ozone generator 322 a as a first ozone generator that generates ozone by using creeping discharge or the like, and fumigation ozone as a second ozone generator The generator 322b is connected, and further, a cleaning air pump 334a and a fumigation air pump 334b for sending out air are connected.

  The cleaning air pump 334a is disposed at the air inlet 304 and is connected to the cleaning ozone generator 322a through a hollow tube 335a. A cleaning ejection nozzle 333a for ejecting gas is connected to the cleaning ozone generator 322a via another tube 335a. The cleaning jet nozzle 333a is disposed in a wind tunnel 310 to be described later. When the cleaning air pump 334a sends air toward the cleaning ozone generator 322a, the cleaning ozone generator 322a generates ozone, and the generated ozone is ejected from the cleaning ejection nozzle 333a.

  The fumigation air pump 334b is disposed at the air inlet 304 and is connected to the fumigation ozone generator 322b via a hollow tube 335b. The fumigation ozone generator 322b is connected to a fumigation ejection nozzle 333b for ejecting gas via another tube 335b. The fumigation jet nozzle 333 b is disposed at the exhaust port 303. When the fumigation air pump 334b sends air toward the fumigation ozone generator 322b, the fumigation ozone generator 322b generates ozone, and the generated ozone is ejected from the fumigation ejection nozzle 333b.

  A hollow wind tunnel 310 is disposed in the housing 302 of the air cleaning fumigator 301. One end of the wind tunnel 310 is located at the intake port 304 and the other end is located at the exhaust port 303. Inside the wind tunnel 310, in order from the inlet 304 side to the exhaust outlet 303, a pre-filter 321 that collects large dust and dirt, a cleaning nozzle 333a that jets ozone, a fluorescent lamp 323 that emits light, A photocatalyst 324 that irradiates a fluorescent lamp 323 to perform sterilization and deodorization, a first ozone decomposition catalyst that changes ozone into oxygen, an ozone decomposition catalyst 325 as a second ozone decomposition catalyst, and malodorous substances (for example, ammonia, acetic acid, A high-performance deodorizing filter 326 that collects methyl mercaptan), carbon silk 327 that deodorizes, a HEPA filter 328 that collects particles such as viruses, a fan 329 that rotates by driving the motor 312, and a negative ion generator 330. ing. Note that the photocatalyst 324 and the ozone decomposition catalyst 325 are both carried on various carriers (not shown).

  FIG. 8 is a schematic diagram illustrating a modified example of the internal structure of the air purification fumigator 301 and the duct 401 according to the first embodiment. In the air purifying fumigator 301 of FIG. 8, the common use of the members regarding ozone generation is achieved. That is, the air purification fumigator 301 in FIG. 8 includes an ozone generator 322 as a first ozone generator and a second ozone generator, and an air pump 334 that feeds air into the ozone generator 322, one by one. I have. The air pump 334 and the ozone generator 322 are connected by a hollow tube 335, and the electromagnetic valve V is connected to the ozone generator 322 via the hollow tube 335. The electromagnetic valve V is connected to a hollow tube 335a connected to the cleaning jet nozzle 333a and a hollow tube 335b connected to the fumigation jet nozzle 333b. The electromagnetic valve V selectively switches between these two tubes 335a and 335b. Such an electromagnetic valve V is connected to the control unit 311, and the switching operation is controlled by the control unit 311.

  Next, the duct 401 will be described. As shown in FIG. 7 or 8, the cover 403 attached to the housing 302 forms a space (hereinafter referred to as a cover space 403 a) in the upper region of the exhaust port 303. The front ends of the first duct 402 and the second duct 404 are disposed above the exhaust port 303 via the cover space 403a. More specifically, the tip of the first duct 402 is positioned above the end surface 310 a of the wind tunnel 310. The tip of the second duct 404 is positioned above the fumigation ejection nozzle 333b (ejection nozzle 333). The gas discharged from the exhaust port 303 is temporarily accommodated in the cover space 403a. Thereafter, the gas accommodated in the cover space 403 a is introduced into the first duct 402 or the second duct 404.

  FIG. 9 is a perspective view showing the internal structure of the duct 401. The duct 401 includes a switching valve 405 that is in contact with the end surfaces of the first duct 402 and the second duct 404 and rotates about a rotation shaft 405a. The switching valve 405 has a notch 406 that is a through hole having a smaller diameter than the diameter of the first duct 402 or the second duct 404. The first duct 402 and the second duct 404 are closed when their end faces come into contact with the switching valve 405, and the notch 406 is positioned at each end face so that the blocking by the switching valve 405 is released. Opened. A rotating shaft 405 a as a power transmission mechanism is connected to the actuator 313.

  In FIG. 9, the switching valve 405 is positioned at a rotational position where the notch 406 is located on the end face of the first duct 402. At this time, since the first duct 402 is open, the gas accommodated in the cover space 403 a is guided to the outside of the tent 201 through the first path 402 a formed inside the first duct 402. Here, the control unit 311 drives the actuator 313 by half rotation. The rotating shaft 405a transmits the rotational force of the actuator 313 to the switching valve 405, and the switching valve 405 rotates halfway. As a result, the switching valve 405 is positioned at the rotational position where the notch 406 is located on the end face of the second duct 404. At this time, since the second duct 404 is open, the gas accommodated in the cover space 403 a is guided into the tent 201 through the second path 404 a formed inside the second duct 404. From this state, when the control unit 311 further drives the actuator 313 by half rotation and the switching valve 405 rotates by half rotation, the notch 406 is positioned again on the end face of the first duct 402 and the first duct 402 is opened. .

  FIG. 10 is a perspective view showing an internal structure of a duct 401 as a modified example. The duct 401 in FIG. 10 is provided with an openable / closable lid 407 at a part of a cover 403 (indicated by a broken line in FIG. 10). A hand can be introduced into the cover 403 by opening the opening / closing lid 407. Then, the switching valve 405 can be grasped with the hand introduced into the cover 403 and rotated about the rotating shaft 405a. In this way, the switching valve 405 can be positioned manually at a position where the first duct 402 is opened (shown in FIG. 10) and a position where the second duct 404 is opened.

  In such a configuration, the rescue worker first places the air cleaning fumigator 301 in the tent 201 from the entrance / exit 206. Next, the duct 401 is inserted into the tent 201 through the entrance / exit 206, and the cover 403 of the duct 401 is put on the housing 302 of the air cleaning fumigator 301. Accordingly, one end of the first duct 402 and the second duct 404 is positioned at the exhaust port 303. Then, the other end of the first duct 402 is inserted into the communication space 208. Thereafter, the rescue worker accommodates the infected patient in the accommodation space 203 in the tent 201 and leaves the tent 201, and operates the remote controller 306 to transmit a negative pressure instruction signal. The communication unit 307 receives the transmitted negative pressure instruction signal.

  FIG. 11 is a flowchart showing a flow of processing executed by the control unit 311. The control unit 311 determines the instruction signal received by the communication unit 307 (step S101, step S110). When it is determined that the instruction signal received by the communication unit 307 is a negative pressure instruction signal (Y in step S101), the actuator 313 is driven to position the switching valve 405 at the rotational position where the first duct 402 is opened. (Step S102), "air suction" processing is executed (Step S103).

  In step S <b> 103, first, the control unit 311 rotates the fan 329 by driving the motor 312. By the rotation of the fan 329, the contaminated air in the tent 201 is sucked from the air inlet 304, passes through the wind tunnel 310, is discharged from the air outlet 303, and is accommodated in the cover space 403a. The air accommodated in the cover space 403a is guided to the outside of the tent 201 through the first path 402a. For this reason, the inside of the tent 201 has a negative pressure compared to the outside of the tent 201. Due to the negative pressure atmosphere in the tent 201, the contaminated air in the tent 201 is prevented from leaking out of the tent 201, for example, from a gap between the lower edge 207 and the bottom surface 205 of the sheet 204. Is done.

  At this time, the control unit 311 drives the cleaning ozone generator 322a and the cleaning air pump 334a in the air cleaning fumigator 301 of FIG. Therefore, ozone is released into the wind tunnel 310 from the cleaning nozzle 333a. Further, the control unit 311 drives the ozone generator 322 in the air purification fumigator 301 of FIG. 8, and ozone is released into the wind tunnel 310. Contaminated air sucked from the air inlet 304 passes through the pre-filter 321 to remove large dust, is mixed with ozone to be sterilized and deodorized, passes through the photocatalyst 324, is sterilized and deodorized, and passes through the ozone decomposition catalyst 325. Ozone that has been passed and mixed is returned to oxygen, passed through the high-performance deodorizing filter 326 to remove malodorous substances, passed through the carbon silk 327, deodorized, and airborne bacteria remaining after passing through the HEPA filter 328 And dust is removed and it exhausts from the exhaust port 303 as clean air. Negative ions generated by the negative ion generator 330 by the control unit 311 of the control unit 311 are mixed with the clean air. That is, the contaminated air in the tent 201 is released into the atmosphere in a clean and safe state. Note that the control unit 311 adjusts the amount of rotation (air volume) of the fan 329 according to the degree of air contamination sensed by the dust sensor 341.

  After the infected patient leaves the tent 201, the rescuer operates the remote controller 306 to transmit a fumigation instruction signal. The communication unit 307 receives the fumigation instruction signal. When it is determined that the instruction signal received by the communication unit 307 is a fumigation instruction signal (N in step S101, Y in step S110), the control unit 311 first performs a pre-fumigation process (step S111). In general, the pre-fumigation process is performed by driving the actuator 313 to position the switching valve 405 at the rotational position where the first duct 402 is opened and driving the motor 312 as in steps S102 and S103. 329 is a process of rotating 329. In the pre-fumigation process, the control unit 311 drives the cleaning ozone generator 322a (ozone generator 322) and the like. By such pre-fumigation treatment, the contaminated air in the accommodation space 203 is cleaned and discharged from the exhaust port 303. The pre-fumigation process is executed for a predetermined time or until the degree of air contamination sensed by the dust sensor 341 reaches a predetermined value. The significance of this fumigation pretreatment will be described later.

  After the fumigation pretreatment, the control unit 311 drives the actuator 313 to position the switching valve 405 at a rotational position where the second duct 404 is opened (step S112). Then, the process of “ozone release” is executed (step S113). In “ozone release” in step S113, the fumigation air pump 334b (air pump 334) is driven, and the fumigation ozone generator 322b (ozone generator 322) is driven. Thus, ozone is ejected from the fumigation ejection nozzle 333b (ejection nozzle 333), discharged from the exhaust port 303, and accommodated in the cover space 403a. The ozone stored in the cover space 403a passes through the second path 404a and is guided into the tent 201, and ozone fumigation is performed in the tent 201. The ozone fumigation in the tent 201 disinfects the air cleaning fumigator 301, the tent 201, the bed mat (not shown), etc., which were contaminated by the contaminated air in the tent 201.

  Note that ozone may leak from the non-airtight tent 201. Therefore, the exhaust fan structure 501 is driven at the time of “ozone release” in step S113. By the exhaust fan structure 501, the ozone in the tent 201 is discharged out of the tent 201 while being returned to oxygen by the ozone decomposition catalyst 503, and the inside of the tent 201 is in a negative pressure atmosphere. At this time, it is considered that the exhausted fan structure 501 causes the contaminated air that has not been sufficiently sterilized by ozone to be discharged outside the tent 201. However, in this embodiment, pre-fumigation treatment is performed before ozone release. Therefore, the air in the storage space 203 is cleaned, and the exhaust fan structure 501 prevents the contaminated air from being discharged out of the tent 201.

  However, the motor 312 that drives the fan 329 can be rotated at a low speed by the control unit 311, and the motor 312 is rotated at a low speed during “ozone release” to weaken the air suction force by the fan 329. By doing so, it is possible to save the exhaust fan structure 501.

  When the control unit 311 determines that a certain time has elapsed from the reception determination of the fumigation instruction signal (Y in step S114), the control unit 311 stops ozone generation by the fumigation ozone generator 322b (ozone generator 322) (step S115). Actuator 313 is driven and switching valve 405 is positioned at the rotational position at which first duct 402 is opened (step S116). Then, the process of “ozone recovery” is executed (step S117). In “ozone recovery” in step S117, the motor 312 is driven to rotate the fan 329. Thereby, ozone in the tent 201 used for fumigation is sucked from the air inlet 304 and passes through the wind tunnel 310. At this time, ozone passes through the ozonolysis catalyst 325 and is returned to oxygen. The oxygen is exhausted from the exhaust port 303 and is guided out of the tent 201 through the first path 402a.

  Although the inside of the tent 201 during ozone fumigation is dangerous because toxic ozone is filled, the ozone filled in the tent 201 is returned to oxygen and released into the atmosphere in a safe state. Therefore, after ozone fumigation, it is possible to enter the tent 201 with confidence.

  When it is determined that the instruction signal received by the communication unit 307 is neither a negative pressure instruction signal nor a fumigation instruction signal (N in Step S101, N in Step S110), the control unit 311 executes other processing (Step S101). S121).

  Here, the control content of the control part 311 in the case of using the air purification fumigator 301 shown in FIG. 8 is demonstrated.

  When the control unit 311 determines that the instruction signal received by the communication unit 307 is a negative pressure instruction signal (Y in step S101 in FIG. 11), the control unit 311 drives the air pump 334 and the ozone generator 322 to supply the ozone generator 322 to the ozone generator 322. The electromagnetic valve V is switched and controlled so that the connected tube 335 communicates with the tube 335a communicating with the cleaning jet nozzle 333a. As a result, the air cleaning unit 308 performs the same operation as described above.

  When the control unit 311 determines that the instruction signal received by the communication unit 307 is a fumigation instruction signal (N in step S101 in FIG. 11 and Y in step S110), the control unit 311 drives the air pump 334 and the ozone generator 322 to generate ozone. The electromagnetic valve V is switched and controlled so that the tube 335 connected to the generator 322 communicates with the tube 335b communicating with the fumigation jet nozzle 333b. Thereby, the fumigation part 309 performs the same fumigation operation as the fumigation operation mentioned above.

  When the control unit 311 causes the fumigation unit 309 of the air purification fumigator 301 to perform an ozone recovery operation (step S117 in FIG. 11), neither the air pump 334 nor the ozone generator 322 is operated, and the electromagnetic valve V is not switched. . Thereby, the fumigation unit 309 performs the same ozone recovery operation as the ozone recovery operation described above.

  Further, when the duct 401 of FIG. 10 is installed, since the control unit 311 does not drive the actuator 313, the infected patient manually rotates the switching valve 405 to open the switching valve 405 and the first duct 402. And the rotational position where the second duct 404 is opened.

  Next, a second embodiment will be described with reference to FIGS.

  FIG. 12 is a perspective view showing an isolation chamber forming apparatus 101 according to the second embodiment. About the same part as 1st Embodiment, the same code | symbol is shown, and description is also abbreviate | omitted (hereinafter the same). One end of the duct 601 included in the isolation chamber forming apparatus 101 according to the second embodiment is inserted into the communication space 208, and the other end is disposed at the exhaust port 303 of the air cleaning fumigator 301. However, the duct 601 does not cover the entire exhaust port 303, but exposes the fumigation ejection nozzle 333 b (ejection nozzle 333) as the second exhaust port and the wind tunnel 310 (FIG. 7, etc.) as the first exhaust port. Only the end surface 310a of the reference). Therefore, in the second embodiment, the gas discharged from the end surface 310 a of the wind tunnel 310 (clean air during “air suction”, oxygen during “ozone recovery”) is guided outside the tent 201 by the duct 601. On the other hand, the ozone ejected by the fumigation ejection nozzle 333b (ejection nozzle 333) is directly discharged into the accommodation space 203. That is, the isolation chamber forming apparatus 101 according to the second embodiment does not include the cover 403, the second duct 404, the switching valve 405, and the like that form the cover space 403a.

  FIG. 13 is a flowchart showing a flow of processing executed by the control unit 311. The difference from the processing flow in the first embodiment is that the ducts (first duct 402 and second duct 404) are not opened and closed by driving the actuator 313. When the control unit 311 determines that the instruction signal received by the communication unit 307 is a negative pressure instruction signal (Y in step S201), the control unit 311 performs a process of “air suction” (step S202). In step S <b> 202, the contaminated air in the tent 201 is sucked from the air inlet 304 by the rotation of the fan 329. Thereby, since the inside of the tent 201 has a negative pressure as compared with the outside of the tent 201, the contaminated air in the tent 201 is prevented from leaking out of the tent 201. At this time, the sucked contaminated air is cleaned and discharged from the end surface 310 a located at the exhaust port 303. The discharged air is guided to the outside of the tent 201 by the duct 601. Then, after the infected patient leaves the tent 201, the rescuer operates the remote controller 306 to transmit a fumigation instruction signal. If the control unit 311 determines that the instruction signal received by the communication unit 307 is a fumigation instruction signal (N in step S201, Y in step S210), the pre-fumigation process is executed (step S211), Processing is executed (step S212). In the pre-fumigation process in step S211, as in step S202, the cleaning ozone generator 322a (ozone generator 322) or the like is driven, and the motor 312 is driven to rotate the fan 329. By such fumigation pretreatment, the contaminated air in the accommodation space 203 is cleaned, discharged from the end surface 310a, and guided out of the tent 201 by the duct 601. In “ozone release” in step S212, ozone is ejected from the fumigation ejection nozzle 333b (ejection nozzle 333) located at the exhaust port 303, and the ejected ozone is directly released into the storage space 203, where ozone fumigation is performed. Done. When it is determined that a certain time has elapsed since the fumigation instruction signal was received (Y in step S213), the control unit 311 stops ozone generation (step S214), and executes the process of “ozone recovery” (step S215). In “ozone recovery” in step S 215, the fan 329 is rotated by driving the motor 312. Therefore, the ozone filled in the tent 201 is sucked from the intake port 304 and passes through the ozone decomposition catalyst 325 in the wind tunnel 310. Then, it is returned to oxygen, discharged from the end face 310 a of the wind tunnel 310 located at the exhaust port 303, and guided out of the tent 201 by the duct 601. Therefore, after ozone fumigation, it is possible to enter the tent 201 with confidence.

  FIG. 14 is a perspective view showing a modification of the isolation chamber forming apparatus 101 according to the second embodiment. In the isolation chamber forming apparatus 101 of FIG. 14, an exhaust fan structure 501 is disposed on the end surface of a duct 601 inserted into the communication space 208. However, the exhaust fan structure 501 occupies only the left side portion of the communication space 208 when the communication space 208 is viewed from the accommodation space 203. A louver 651 capable of opening and closing a slat 652 (see FIG. 15) is disposed on the right side of the communication space 208.

  FIG. 15 is a cross-sectional view showing the duct 601 inserted into the communication space 208. A louver 651 is disposed on the right side of the end surface of the duct 601. The louver 651 has a plurality of blades 652 that can rotate about a support shaft 655 as a fulcrum. The slats 652 are disposed intermittently. Therefore, as shown in FIG. 15A, the gas guided by the duct 601 can pass freely. Each slat 652 is rotatably connected by a connecting rod 654. A grip portion 653 that can be gripped is attached to only one wing plate 652 so as to be positioned outside the tent 201. When an external force toward the left side in the drawing is applied to the grip portion 653, the slat 652 to which the grip portion 653 is attached rotates about the support shaft 655. By this rotation, the connecting rod 654 is pushed out to the right side in the figure, and by pushing out the connecting rod 654, the other vanes 652 are also turned around the support shaft 655 as shown in FIG. As a result, the plurality of slats 652 overlap each other in a tilted posture. The overlapping slats 652 close the louver 651 so as not to allow ventilation.

  An exhaust fan structure 501 is disposed on the left side of the end surface of the duct 601. As described above, the exhaust fan structure 501 includes the fan 502, the ozone decomposition catalyst 503, and the motor 504 that drives the fan 502. The suction force generated by the rotation of the fan 502 driven by the motor 504 is transmitted to the intake port 304 via the duct 601, the exhaust port 303, and the wind tunnel 310. In other words, the air is sucked from the air inlet 304 of the air cleaning fumigator 301 by the rotation of the fan 502 of the exhaust fan structure 501. The fan 502 is rotated during “ozone release”. As a result, ozone in the storage space 203 is sucked from the intake port 304 and discharged out of the tent 201 in a safe state where the ozone is returned to oxygen by the ozone decomposition catalyst 503. Since ozone sucked from the air inlet 304 passes through the wind tunnel 310, it is also returned to oxygen by the ozone decomposition catalyst 325 in the wind tunnel 310. Thus, the inside of the tent 201 becomes a negative pressure atmosphere.

  When the fan 502 of the exhaust fan structure 501 rotates, the wing plate 652 of the louver 651 is closed (see FIG. 15B). In this way, ozone is prevented from being discharged out of the tent 201 without passing through the ozone decomposition catalyst 503. On the other hand, the louver 652 of the louver 651 is opened during “air suction” and “ozone recovery” (see FIG. 15A). Thus, the gas guided by the duct 601 passes through the louver 651 and is discharged out of the tent 201.

  Next, a third embodiment will be described with reference to FIGS.

  FIG. 16 is a perspective view showing an air cleaning fumigator 301 according to the third embodiment. An intake / exhaust port 361 that performs intake and exhaust is provided on the front surface of the housing 302 provided with an exhaust port 303 at the top, and an intake port 351 that performs intake is provided on the side surface of the housing 302.

  In the first embodiment, exhaust for forming a negative pressure atmosphere and ozone release for ozone fumigation are performed from the same exhaust port 303. On the other hand, in the third embodiment, exhaust when forming the negative pressure atmosphere is performed from the exhaust port 303, and ozone release during ozone fumigation is performed from the intake / exhaust port 361 different from the exhaust port 303. Therefore, the duct 401 of the third embodiment only needs to include the first duct 402 as a duct that guides the exhaust from the exhaust port 303 to the outside of the tent 201. As in the first embodiment, the duct 401 is provided. The 2nd duct 404 which guides the exhaust_gas | exhaustion from the inside of the tent 201, the switching valve 405, etc. are not required.

  FIG. 17 is a schematic diagram showing the internal structure of the air cleaning fumigator 301 and the duct 401 in the third embodiment. In the third embodiment, the tip of the wind tunnel 310 is positioned at the intake / exhaust port 361. Further, the arrangement in the wind tunnel 310 is different compared to the first embodiment. That is, inside the wind tunnel 310, the dustproof filter 371, the ozone generator 322, the prefilter 321, the HEPA filter 328, the ozone decomposition catalyst 325, and the high-performance deodorizing filter 326 are sequentially arranged from the intake / exhaust port 361 side toward the exhaust port 303. , A fan 329 and a negative ion generator 330 are arranged.

  A branch structure 701 is provided in the wind tunnel 310. The branch structure 701 extends from the arrangement position of the ozone generator 322 toward the intake port 351. In the branch structure 701, a rotatable fumigation fan 702 is disposed. The fumigation fan 702 rotates by driving a motor 703 provided separately from the motor 312 for driving the fan 329. By the rotation of the fumigation fan 702, air is sucked from the intake port 351 and sent to the ozone generator 322. The ozone generator 322 generates ozone from the sent air, and the generated ozone is discharged from the intake / exhaust port 361. The motor 703 that drives the fumigation fan 702 is also connected to the control unit 311 in the same manner as the motor 312, and is driven and controlled by the control unit 311.

  In addition, as described above, in the third embodiment, the duct 401 includes only the first duct 402. Therefore, the duct 401 does not include the switching valve 405 and the actuator 313. Note that only the first duct 402 may be disposed in the exhaust port 303 without providing the cover 403.

  In such a configuration, the rescue worker first places the air cleaning fumigator 301 in the tent 201 from the entrance / exit 206. Next, the duct 401 is inserted into the tent 201 through the entrance / exit 206, and the cover 403 of the duct 401 is put on the housing 302 of the air cleaning fumigator 301. As a result, one end of the first duct 402 is positioned at the exhaust port 303. Then, the other end of the first duct 402 is inserted into the communication space 208. Thereafter, the rescue worker accommodates the infected patient in the accommodation space 203 in the tent 201 and leaves the tent 201, and operates the remote controller 306 to transmit a negative pressure instruction signal. The communication unit 307 receives the transmitted negative pressure instruction signal.

  FIG. 18 is a flowchart showing a flow of processing executed by the control unit 311. When the control unit 311 determines that the instruction signal received by the communication unit 307 is a negative pressure instruction signal (Y in step S301), the control unit 311 performs an “air suction” process (step S302). That is, the motor 312 is driven to rotate the fan 329. As the fan 329 rotates, the contaminated air in the tent 201 is sucked from the intake / exhaust port 361. Thereby, since the inside of the tent 201 has a negative pressure as compared with the outside of the tent 201, the contaminated air in the tent 201 is prevented from leaking out of the tent 201. At this time, the sucked contaminated air passes through the dust-proof filter 371, is mixed with ozone generated by the ozone generator 322, is sterilized and deodorized, passes through the pre-filter 321, and large dust is removed, and the HEPA filter 328 is removed. Airborne bacteria and dust remaining after passing through the filter are removed, ozone mixed through the ozone decomposition catalyst 325 is returned to oxygen, and malodorous substances are removed by passing through the high-performance deodorizing filter 326. The air is discharged from the exhaust port 303. In the third embodiment, bacteria and viruses collected by the HEPA filter 328 are sterilized by ozone. The negative ions generated by the negative ion generator 330 are mixed with the clean air. The air discharged from the exhaust port 303 is guided to the outside of the tent 201 through the first path 402a.

  After the infected patient leaves the tent 201, the rescuer operates the remote controller 306 to transmit a fumigation instruction signal. When the control unit 311 determines that the instruction signal received by the communication unit 307 is a fumigation instruction signal (N in step S301, Y in step S310), the control unit 311 performs pre-fumigation processing (step S311), Processing is executed (step S312). In the pre-fumigation process in step S311, as in step S302, the ozone generator 322 is driven and the motor 312 is driven to rotate the fan 329. By such pre-fumigation treatment, the contaminated air in the storage space 203 is sucked from the intake / exhaust port 361 and cleaned, discharged from the exhaust port 303, and guided outside the tent 201 by the first duct 402. In “ozone release” in step S312, the control unit 311 drives the ozone generator 322 and drives the motor 703 to rotate the fumigation fan 702. Thereby, ozone is discharged from the intake / exhaust port 361, and the storage space 203 in the tent 201 is sterilized by ozone fumigation. If it is determined that a certain time has elapsed since the fumigation instruction signal was received (Y in step S313), the control unit 311 stops the rotation of the fumigation fan 702 and stops the ozone generation by the ozone generator 322 (step S314). Then, the control unit 311 executes an “ozone recovery” process (step S315). In “ozone recovery” in step S315, the control unit 311 drives the motor 312 to rotate the fan 329. Thereby, the ozone in the tent 201 is sucked from the intake / exhaust port 361, passes through the ozone decomposition catalyst 325 in the wind tunnel 310, is returned to oxygen, is discharged from the exhaust port 303, passes through the first path 402a, and passes through the first path 402a. Led outside. Therefore, after ozone fumigation, it is possible to enter the tent 201 with confidence.

  As described above, according to any of the embodiments, after the infected patient leaves the tent 201, the ozone fumigation in the tent 201 is performed, and the air purifying fumigator 301 that has been contaminated by the contaminated air in the tent 201, The tent 201 (sheet 204, frame 202), bed mat (not shown), and the like are sterilized. Therefore, the sheet 204 or the like can be used repeatedly without being incinerated, and the air cleaning fumigator 301 can be used again even if it is installed in the tent 201. At this time, it is not necessary to separately prepare and install equipment for ozone fumigation.

  Further, since the air cleaning fumigation machine 301 is installed in the tent 201, the air cleaning fumigation machine 301 is not an obstacle when a rescuer who rescues an infected patient moves outside the tent 201, It can also be expected that workability during rescue will be improved.

  In addition, since the air purifying unit 308 for creating a negative pressure atmosphere in the tent 201 and the fumigating unit 309 for fumigating the tent 201 with ozone are integrated in the housing 302, the air purifying unit 308 is integrated. Compared with the case where the fumigation unit 309 and the fumigation unit 309 are separate bodies, the convenience of installation and transportation is increased.

  In addition, when the ozone generator 322 used for cleaning the contaminated air in the tent 201 is also used for ozone fumigation in the tent 201 (see FIGS. 8 and 17), the ozone generator 322 is a single unit. Since only one is required, the housing 302 is downsized, and the interior of the tent 201 can be used more widely.

DESCRIPTION OF SYMBOLS 101 ... Isolation chamber formation apparatus 201 ... Tent 202 ... Frame 203 ... Accommodating space 208 ... Communication space 301 ... Air cleaning fumigation machine 302 ... Housing 303 ... Exhaust port 304 ... Intake port 306 ... Remote controller 307 ... Communication part 309 ... Fumigation unit 310a ... End face (first exhaust port)
311: Control unit 313: Actuator (drive source)
322 ... Ozone generator (first ozone generator, second ozone generator)
322a Cleaning ozone generator (first ozone generator)
322b ... Ozone generator for fumigation (second ozone generator)
325 ... Ozone decomposition catalyst (first ozone decomposition catalyst, second ozone decomposition catalyst)
328 ... HEPA filter 333 ... ejection nozzle (second exhaust port)
333b ... Fumigation nozzle (second exhaust port)
361 ... Intake / exhaust port 402 ... First duct (duct)
403a ... Cover space 403 ... Cover 404 ... Second duct 405 ... Switching valve 405a ... Rotating shaft (power transmission mechanism)
501 ... Exhaust fan structure 502 ... Fan 503 ... Ozone decomposition catalyst (third ozone decomposition catalyst)
601 ... Duct 651 ... Louver 652 ... Wing board

Claims (13)

A frame, a sheet that forms a storage space for storing a patient separated from the outside by covering the frame, and a communication space for communicating the storage space and the outside. With a tent that allows air to move between
An air purifier fumigator comprising a housing provided with an inlet and an outlet;
A first ozone generator that generates ozone, a first ozone decomposition catalyst that changes ozone into oxygen, and a HEPA filter that collects particulates; An air purifying unit for sucking air that is mixed with ozone generated by the first ozone generator and passes through the first ozone decomposition catalyst and the HEPA filter and is discharged from the exhaust port;
A second ozone generator that generates ozone and a second ozone decomposition catalyst that converts ozone into oxygen, the ozone generated by the second ozone generator; A fumigation unit that performs ozone release discharged from the intake port and ozone recovery that sucks ozone from the intake port and passes through the second ozone decomposition catalyst to be discharged from the exhaust port;
A cover that covers the exhaust port and forms a cover space for accommodating the gas discharged from the exhaust port;
A gas housed in the cover space, having one end inserted into the communication space from the housing space side and the other end connected to the cover covering the exhaust port of the air cleaning fumigator located in the housing space A first duct leading the outside of the tent;
One end disposed in the accommodation space and the other end connected to the cover covering the exhaust port of the air purifier fumigator located in the accommodation space, and the gas accommodated in the cover space is transferred to the accommodation space A second duct leading to
A switching mechanism that alternatively opens and closes the first duct and the second duct;
An isolation chamber forming apparatus comprising: The switching mechanism is
A switching valve movable between a position for opening the first duct and a position for opening the second duct;
A power transmission mechanism that transmits the power of the drive source to the switching valve to move the position of the switching valve;
With
The air cleaning fumigator
A communication unit that receives the instruction signal transmitted by a remote controller that transmits an instruction signal including a negative pressure instruction signal that instructs formation of a negative pressure atmosphere and a fumigation instruction signal that instructs ozone fumigation;
When it is determined that the instruction signal received by the communication unit is the negative pressure instruction signal, the driving source is driven to open the first duct in the switching valve, and then the air cleaning unit When the instruction signal received by the communication unit is determined to be the fumigation instruction signal, the drive source is driven to open the second duct in the switching valve and then the fumigation unit A controller for driving the drive source after causing the ozone to be released and allowing the switching valve to open the first duct and then performing the ozone recovery;
Comprising
The isolation chamber forming apparatus according to claim 1. The housing space communicates with the outside of the tent, and has a third ozone decomposition catalyst that changes ozone into oxygen and a rotatable fan. When the ozone is released, the fan is rotated to rotate the housing space. An exhaust fan structure that sucks ozone and passes the third ozonolysis catalyst to discharge it outside the tent, further comprising:
The isolation chamber forming apparatus according to claim 1 or 2. A frame, a sheet that forms a storage space for storing a patient separated from the outside by covering the frame, and a communication space for communicating the storage space and the outside. With a tent that allows air to move between
An air cleaning fumigator comprising a housing provided with an air inlet, a first air outlet and a second air outlet;
A first ozone generator that generates ozone, a first ozone decomposition catalyst that changes ozone into oxygen, and a HEPA filter that collects particulates; An air purifier for sucking air that is mixed with ozone generated by the first ozone generator and passes through the first ozone decomposition catalyst and the HEPA filter and is discharged from the first exhaust port;
A second ozone generator that generates ozone and a second ozone decomposition catalyst that converts ozone into oxygen, the ozone generated by the second ozone generator being contained in the housing; A fumigation unit that performs ozone emission discharged from an exhaust port, and ozone recovery that sucks ozone from the intake port and passes the second ozone decomposition catalyst to be discharged from the first exhaust port;
The air purification fumigator located in the accommodation space has one end disposed at the first exhaust port and the other end inserted into the communication space from the accommodation space side, and is discharged from the first exhaust port. A duct for guiding gas to the outside of the tent;
Equipped with a,
The air cleaning fumigator
A communication unit that receives the instruction signal transmitted by a remote controller that transmits an instruction signal including a negative pressure instruction signal that instructs formation of a negative pressure atmosphere and a fumigation instruction signal that instructs ozone fumigation;
When it is determined that the instruction signal received by the communication unit is the negative pressure instruction signal, the air cleaning unit performs the air suction, and the instruction signal received by the communication unit is the fumigation instruction signal. In the case of determination, a control unit that performs the ozone recovery after the fumigation unit performs the ozone release, and
Comprising
Isolation chamber forming device. The housing space communicates with the outside of the tent, and has a third ozone decomposition catalyst that changes ozone into oxygen and a rotatable fan. When the ozone is released, the fan is rotated to rotate the housing space. An exhaust fan structure that sucks ozone and passes the third ozonolysis catalyst to discharge it outside the tent, further comprising:
The isolation chamber forming apparatus according to claim 4 . The wing plate is disposed in a part of the communication space into which the duct is inserted, and is openable and closable.
The exhaust fan structure is disposed in the remaining part of the communication space, and sucks ozone in the accommodation space through the intake port, the first exhaust port, and the duct.
The isolation chamber forming apparatus according to claim 5 . A frame, a sheet that forms a storage space for storing a patient separated from the outside by covering the frame, and a communication space for communicating the storage space and the outside. With a tent that allows air to move between
An air purifying fumigator comprising a housing provided with an intake and exhaust port and an exhaust port;
The housing includes a first ozone generator that generates ozone, a first ozone decomposition catalyst that changes ozone into oxygen, and a HEPA filter that collects fine particles, and sucks air from the intake and exhaust ports. And an air purifying unit for sucking air that is mixed with ozone generated by the first ozone generator, passes through the first ozone decomposition catalyst and the HEPA filter, and is discharged from the exhaust port,
A second ozone generator that generates ozone and a second ozone decomposition catalyst that converts ozone into oxygen, and that is configured to contain ozone; A fumigation section that performs ozone release discharged from the mouth, and ozone recovery that sucks ozone from the intake and exhaust ports and passes the second ozone decomposition catalyst to discharge from the exhaust ports;
The tent has an end disposed at the exhaust port of the air cleaning fumigator located in the storage space and another end inserted into the communication space from the storage space side, and discharges the gas discharged from the exhaust port to the tent A duct leading to the outside of the
Equipped with a,
The air cleaning fumigator
A communication unit that receives the instruction signal transmitted by a remote controller that transmits an instruction signal including a negative pressure instruction signal that instructs formation of a negative pressure atmosphere and a fumigation instruction signal that instructs ozone fumigation;
When it is determined that the instruction signal received by the communication unit is the negative pressure instruction signal, the air cleaning unit performs the air suction, and the instruction signal received by the communication unit is the fumigation instruction signal. In the case of determination, the control unit that performs the previous period ozone recovery after the fumigation unit performs the ozone release,
Comprising
Isolation chamber forming device. The housing space communicates with the outside of the tent, and has a third ozone decomposition catalyst that changes ozone into oxygen and a rotatable fan. When the ozone is released, the fan is rotated to rotate the housing space. An exhaust fan structure that sucks ozone and passes the third ozonolysis catalyst to discharge it outside the tent, further comprising:
The isolation chamber forming apparatus according to claim 7 . The first ozone generator and the second ozone generator are the same device, and are shared by the air cleaning unit and the fumigation unit.
The isolation chamber forming apparatus according to claim 1, 4 or 7 . The first ozone decomposition catalyst and the second ozone decomposition catalyst are the same, and are shared by the air cleaning unit and the fumigation unit.
The isolation chamber forming apparatus according to claim 1, 4, 7 or 9 . A frame and a sheet that covers the frame to form a storage space for storing a patient separated from the outside, and a communication space for communicating the storage space and the outside, have air between the storage space and the outside. The housing space in the movable tent has a housing provided with an intake port and an exhaust port, a first ozone generator for generating ozone, a first ozone decomposition catalyst for changing ozone into oxygen, and fine particles And a HEPA filter that traps the air, sucks air from the intake port, mixes it with ozone generated by the first ozone generator, and passes the first ozone decomposition catalyst and the HEPA filter. An air purifier for sucking air discharged from the exhaust port, a second ozone generator for generating ozone, and a second ozonolysis for changing ozone to oxygen The ozone generated by the second ozone generator is discharged from the exhaust port, and ozone is sucked from the intake port to pass through the second ozone decomposition catalyst to pass through the exhaust port. A step of fumigation part performing ozone recovery discharged from the step of disposing an air purifying fumigator built in the housing;
A cover that covers the exhaust port and that forms a cover space that accommodates the gas discharged from the exhaust port covers the exhaust port of the air purification fumigator located in the storage space and has one end connected to the cover. Inserting the other end of the first duct from the accommodation space side into the communication space and disposing the other end of the second duct having one end connected to the previous cover in the accommodation space;
After the first duct is opened by a switching mechanism that selectively opens and closes the first duct and the second duct, the air purifier performs the air suction to accommodate the air in the cover space. Letting the air contained in the cover space be guided to the outside of the tent to the opened first duct;
After the second duct is opened by the switching mechanism, the fumigation unit releases the ozone to store ozone in the cover space, and the ozone stored in the cover space is opened. A step of guiding a duct to the accommodation space;
After the first duct is opened by the switching mechanism, the fumigation unit performs the ozone recovery to store oxygen in the cover space, and the oxygen stored in the cover space is opened. Letting the duct lead outside the tent;
An isolation chamber forming method comprising: A frame and a sheet that covers the frame to form a storage space for storing a patient separated from the outside, and a communication space for communicating the storage space and the outside, have air between the storage space and the outside. The housing space in the movable tent includes a housing provided with an intake port, a first exhaust port, and a second exhaust port, and a first ozone generator that generates ozone and a first ozone generator that converts ozone into oxygen. A first ozone decomposing catalyst and a HEPA filter for collecting fine particles, and sucking air from the intake port and mixing it with ozone generated by the first ozone generator; An air purifier that sucks air that passes through the HEPA filter and exhausts from the first exhaust port, a second ozone generator that generates ozone, and ozone is changed to oxygen. A second ozone decomposition catalyst that releases ozone generated by the second ozone generator from the second exhaust port, and sucks ozone from the intake port to produce the second ozone decomposition. A step of disposing an air purifying fumigator built in the housing with a fumigation unit that performs ozone recovery through the catalyst and discharged from the first exhaust port;
Placing one end of the duct at the first exhaust port of the air purifier fumigator located in the housing space, and inserting the other end of the duct from the housing space side into the communication space;
Causing the air purifier to perform the air suction and guiding the air discharged from the first exhaust port to the outside of the tent;
A step of causing the fumigation unit to release the ozone;
Causing the fumigation part to perform the ozone recovery and guiding oxygen discharged from the first exhaust port to the outside of the tent;
An isolation chamber forming method comprising: A frame and a sheet that covers the frame to form a storage space for storing a patient separated from the outside, and a communication space for communicating the storage space and the outside, have air between the storage space and the outside. A housing in which an intake / exhaust port and an exhaust port are provided in the housing space of the movable tent, a first ozone generator that generates ozone, and a first ozone decomposition catalyst that changes ozone into oxygen A HEPA filter that collects fine particles, sucks air from the intake and exhaust ports, mixes with ozone generated by the first ozone generator, and passes through the first ozone decomposition catalyst and the HEPA filter. An air purifier for sucking air discharged from the exhaust port, a second ozone generator for generating ozone, and a second ozone for changing ozone to oxygen An ozone release for releasing ozone generated by the second ozone generator from the intake / exhaust port and desorbing the ozone from the intake / exhaust port and allowing the ozone to pass through the second ozone decomposition catalyst; A step of fumigation part for performing ozone recovery discharged from the exhaust port and disposing an air cleaning fumigator built in the housing;
Placing one end of a duct at the exhaust port of the air purifier fumigator located in the housing space, and inserting the other end of the duct from the housing space side into the communication space;
Causing the air purifier to perform the air suction to guide the air discharged from the exhaust port to the outside of the tent;
Letting the fumigation part release ozone from the intake and exhaust ports;
Causing the fumigation part to perform the ozone recovery and guiding oxygen discharged from the exhaust port to the outside of the tent;
An isolation chamber forming method comprising:

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