WO2005124241A1

WO2005124241A1 - Air purifier, isolated facility, and pneumatic transferring means

Info

Publication number: WO2005124241A1
Application number: PCT/JP2005/010140
Authority: WO
Inventors: Tomomi Sunagawa; Mamoru Nakamura
Original assignee: Naka Engineering Co., Ltd.
Priority date: 2004-06-16
Filing date: 2005-06-02
Publication date: 2005-12-29
Also published as: CN1985130B; JPWO2005124241A1; JP4420922B2; CN1985130A

Abstract

[PROBLEMS] To provide an air purifier easily installable in a room and capable of remodeling the inside of the room in an aseptic room or a virus mail coping room without deteriorating an environment in the room, a facilitated isolated facility having the air purifier, and a pneumatic transferring means suitable for the air purifier. [MEANS FOR SOLVING PROBLEMS] This air purifier (1) used for purifying air in a specified purification space comprises a suction part (3), a purifying means (12), and a discharge part (4). The suction part (3) further comprises a sealed container (10), an intake passage communicating a hollow space (10h) with the purification space in the sealed container (10), an exhaust passage communicating the hollow space (10h) with the exhaust part (4) in the sealed container (10), a suction means (11) sealed in the hollow space (10h) of the sealed container (10), sucking the air in the hollow space (10h), and discharging the air to the discharge passage. In the suction means (11), a suction port (11a) sucking the air in the hollow space (10h) of the sealed container (10) is separated from the sealed container (10) side one end of the suction passage.

Description

Specification

Air purification device, isolation equipment and air transfer means

Technical field

The present invention relates to an air purification device, an isolation facility, and an air transfer unit. In hospitals and welfare facilities for the elderly, patients with reduced resistance and susceptibility to bacteria are treated in a sterile room where the pressure is maintained at a positive pressure until the resistance is restored. The patient is treated in an infectious disease treatment room where the room is kept under negative pressure so that bacteria and the like do not spread outside.

INDUSTRIAL APPLICABILITY The present invention is suitable for an air purification device that can easily form a predetermined space as a sterile room or a sterilization room, an isolation device that can easily form a sterile room or a sterilization room, and an air purification device or an isolation device. Air transfer means.

Background art

[0002] As a technique for purifying air in a waiting room of a hospital and preventing infection in the waiting room, there is a technique described in Conventional Example 1 (Patent Document 1).

Conventional example 1 is a technology in which air in a waiting room is circulated by an air conditioner, and discloses a configuration in which air circulating is filtered by a filter provided in a circulation line. As a result, dust and the like floating in the waiting room can be removed by suction, thereby preventing a patient in the waiting room from infecting bacteria and the like adhering to the dust by sucking the dust and the like. be able to.

[0003] Further, a device that is installed in a room and simply purifies the air in the room to make the room a negative pressure has also been developed! (Conventional Example 2: Patent Document 2).

The technology of Conventional Example 2 is a negative pressure type air purifier equipped with a fan that always keeps a negative pressure in the installed room. And a casing having an inlet and an outlet for blowing the purified air.The interior of the casing is divided into a first chamber, a second chamber, and a third chamber, which are separated from each other in order from the upstream side. A pre-filter having at least a filtering function and a filter having at least a high-performance filtering function are provided on the upstream and downstream sides of the first chamber, and are arranged at the downstream end of the second chamber to create an air flow. It is configured so that the suction loca also inhales air by the operation of the circulation fan, and the filtered and sanitized air flows into the second and third chambers, and blows out. A fan for maintaining a negative pressure in the room to keep the room in a negative pressure state is always provided in the third room, and an exhaust pipe connected to the fan for maintaining a negative pressure in the room to exhaust air to the outside of the room is provided. In the second conventional example, if the fan for circulation is operated, the air in the room can be purified by passing the air through a pre-filter or the like, and the fan for maintaining the negative pressure in the room can be operated to operate the third room. It is described that if a part of the air is exhausted to the outside of the room, the amount of air returned to the room can be reduced, so that the room can be maintained at a negative pressure.

Patent Document 1: Japanese Patent Application Laid-Open No. 2003-279090

Patent Document 2: JP 2003-185204 A

Disclosure of the invention

Problems to be solved by the invention

[0005] In the technology of Conventional Example 1, piping such as a duct must be arranged in a building, and the position where the air conditioner is installed and the waiting room must be communicated by the piping. As a result, the equipment becomes large, time and labor are required before installation, and the cost also increases.

[0006] The device of Conventional Example 2 has an advantage that it can be installed indoors simply by performing simple piping work. However, in the device of the conventional example 2, the circulation fan and the fan for maintaining the negative pressure in the room are disposed in the casing! /, But are simply surrounded by the casing! / As a result, there is a possibility that the indoor environment will be degraded due to the noise generated by the fan. When arranging devices indoors, it is important to take care of the indoor environment. However, the device of Conventional Example 2 has no countermeasures against noise. In order to prevent this, the air transfer power is extremely small and cannot be used compared to the case where a fan is installed outside the building. Then, the suction power for sucking the air in the room is insufficient, and it is difficult to make the room a negative pressure. In particular, when a filter with a large air resistance such as a HEPA filter is used, the amount of air that can be exhausted from the room is further reduced. Therefore, with the device of the conventional example 2, it is not practically possible to make the room a negative pressure and set it as an infection control room.

However, if a fan with a large suction force is used, the amount of air that can be exhausted from the room can be increased. Although it is possible to lose heat, it is necessary to surround the surrounding area of the fan with soundproofing materials to prevent noise. Then, the size of the device is increased by the amount of the soundproofing material and the like, and the provision of the soundproofing material and the like causes insufficient cooling of the fan and the like, and the fan and the like may be damaged by heat. Then, a device for cooling a fan or the like must be specially provided, and the device is further increased in size, and the structure and piping of the device are complicated, so that there is no merit that the device can be easily installed indoors. It will be connected.

Therefore, it is practically difficult for the device of Patent Document 2 to maintain a negative pressure inside the room without deteriorating the indoor environment while maintaining the advantage that the device can be easily installed indoors.

[0007] In view of the circumstances, the present invention is an air purification device that can be easily installed in a room and that can be used as a sterile room or an infectious disease countermeasure room without deteriorating the indoor environment. It is another object of the present invention to provide a simple isolation facility equipped with this air purification device and an air transfer means suitable for the air purification device.

Means for solving the problem

[0008] The air purification device of the first invention is an air purification device used for purifying air in a predetermined purification space, wherein the air purification device sucks air in the purification space. And a purifying unit for purifying air sucked from the purifying space by the suction unit, and a discharge unit for discharging the air purified by the purifying unit. A suction container in which a suction space is provided with a hollow space hermetically sealed with an external cap, an intake passage communicating the hollow space in the hermetic container with the purification space, An exhaust passage communicating between the hollow space in the container and the discharge section; and suction means sealed in the hollow space of the sealed container, sucking air in the hollow space, and discharging the air into the exhaust passage. The suction means is provided with air in the hollow space of the sealed container. A suction port for suctioning is separated from one end of the intake passage on the sealed container side, and a discharge port for discharging the air to an exhaust passage is airtightly connected to one end of the exhaust passage on the sealed container side. It is characterized by

The air purification device of a second invention is the air purification device according to the first invention, wherein the suction unit includes a ventilation passage that communicates a hollow space in the sealed container with a space outside the purification space, and the discharge unit includes: Part or all of the supplied air, It is characterized by having a circulation passage for returning to the Jyidani space.

The air purification device according to a third aspect of the present invention is the air purification device according to the first aspect, wherein the discharge unit returns a part or all of the air supplied from the suction unit of the suction unit to the purification space, And an outside air introduction passage for supplying outside air to the purification space.

The isolation facility according to a fourth aspect of the invention is an isolation facility comprising an isolation room forming a living space isolated from an external space, and an air conditioner for sucking and changing air in the separation room, wherein the air purification is performed. The device is the air purifying device according to claim 1, 2 or 3, wherein the isolation chamber is provided with an exhaust port that is air-tightly connected to a suction section of the air purifying device. The air transfer means according to the fifth invention is an air transfer means for discharging the suctioned gas and sucking gas, and for discharging the sucked gas, wherein a sealed container having a hollow space hermetically sealed from the outside is provided. An intake passage communicating the hollow space in the container with the outside, an exhaust passage communicating the hollow space in the sealed container with the outside, and an air passage sealed in the hollow space of the sealed container, Suction means for sucking and discharging to the exhaust passage; The suction means is configured such that a suction port for sucking air in a hollow space of the sealed container is separated from one end of the suction passage on a side of the sealed container, and a discharge port for discharging the air to an exhaust passage. An outlet is air-tightly connected to one end of the exhaust passage on the sealed container side.

The invention's effect

According to the first invention, since the suction means is sealed in the sealed container, it is possible to prevent the indoor environment from being degraded due to the noise generated by the suction means even if the suction means is enlarged. Although the suction means is hermetically connected to the exhaust passage at the discharge port, the suction port is separated from the intake passage, so that the suction means is drawn into the sealed container without providing any special cooling means. Cooled by air. Therefore, even if the suction means is sealed in the sealed container, the suction means can be prevented from being damaged by heat. Furthermore, even if there is air leaking from the suction means, the air only leaks into the sealed container, and does not leak outside the device, so that contamination by the air leaking from the suction means can be prevented. According to the second aspect of the present invention, if all of the supplied air is returned to the purification space, the pressure in the purification space is increased by the amount of outside air introduced into the sealed space. can do. When the outside air passes through the purification means, the inside of the purification space can be made a sterile room. On the other hand, if a part of the air supplied by the suction means of the suction unit is returned to the purification space, the inside of the purification space is maintained by the outside air introduced into the sealed space while maintaining the negative pressure in the purification space. You can also ventilate.

According to the third aspect, if all of the supplied air is returned to the purification space, the pressure in the purification space is increased by the amount of the outside air introduced from the outside air introduction passage. Can be. If the outside air passes through the purification means, the inside of the purification space can be made a sterile room. On the other hand, if the amount of air supplied from the circulation passage and the outside air introduction passage into the purification space is adjusted, the inside of the purification space is maintained by the outside air introduced into the sealed space while maintaining the inside of the purification space at a negative pressure. Can be ventilated.

According to the fourth invention, since the air purifying device of the first, second or third invention is employed, negative pressure or positive pressure can be reliably generated in the isolated room, and the living environment in the isolated room is deteriorated. I won't let you.

According to the fifth aspect, since the suction means is sealed in the sealed container, it is possible to prevent the indoor environment from being degraded due to noise generated by the suction means even if the suction means is enlarged. Therefore, even if the air purifying apparatus using the air transfer means is used indoors, it is possible to prevent the indoor environment from deteriorating. As for the suction means, the suction port is connected to the exhaust passage in an airtight manner, but the suction port is separated from the intake passage, so that the suction means can be sucked into the sealed container without special cooling means. Cooled by the air. Therefore, even if the suction means is sealed in the sealed container, the suction means can be prevented from being damaged by heat. Furthermore, even if there is air leaking from the suction means, the air only leaks into the sealed container and does not leak to the outside of the device, so that contamination by air leaking from the suction means can be prevented. it can.

BEST MODE FOR CARRYING OUT THE INVENTION

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic explanatory diagram of the isolation equipment of the present embodiment. In FIG. 1, the symbol RA is 3 shows an isolation room of a separation facility. This isolation room RA has a smaller volume than the room R where the isolation equipment is installed. The isolation chamber RA is formed, for example, by combining polycarbonate plates and the like, and has, on its wall surface, an intake port Ra for taking in outside air into the inside, and an exhaust port Rb for discharging the inside air to the outside. It has. The isolation room RA is designed to reduce the possibility that outside air enters the inside or leaks the inside air from a part other than the intake port Ra and the exhaust port Rb, in other words, the intake port Ra and the exhaust port. Parts other than Rb are configured to be kept airtight or airtight or almost airtight. In the isolation room RA, for example, a purification filter such as a HEPA filter or an ULPA filter is provided at the intake port Ra, and the suction port 3 of the air purification device 1 described later is provided at the exhaust port Rb. Connected airtight! Purification filters, such as HEPA and ULPA filters, have a resistance of several hundred Pa when air passes through them.Therefore, when the pressure difference between the inside and outside of the isolation chamber RA is small, the inside and outside of There is very little air exchange between the two.

The above-mentioned isolation room The space inside the RA RB power It is a purifying space according to the claims.

[0011] The structure of the isolation chamber RA is not particularly limited as long as it is configured so that portions other than the intake port Ra and the exhaust port Rb are kept airtight or substantially airtight.

Furthermore, the living room R where the isolation room RA is installed is, for example, each room in a welfare facility for the elderly, a laboratory or drug storage warehouse in a research facility such as a company or a university, and a room in a general house. The inside of the installation space R such as a room corresponds to each, but is not particularly limited, and the isolation room RA may be installed outdoors. In particular, it is possible to install the isolation room RA and the air purifying device 1 described later on the loading platform of trucks and the like. In this case, in the event of a disaster, the isolation room RA can be easily and promptly placed in the affected area. It is preferable because RA can be provided.

As shown in FIG. 1, a suction section 3 of the air purification device 1 is airtightly connected to an exhaust port Rb of the isolation chamber RA, and between the suction section 3 and the exhaust port Rb, Purification means 12 is provided. The purifying means 12 sequentially removes dust with relatively coarse eyes, such as a dust filter, a HEPA filter, a semi-HEPA filter, and a ULPA filter. In addition, they are arranged in the order of a filter for capturing bacteria and the like that can capture bacteria and the like. The configuration of the purifying means 12 is not limited to the above configuration, and the combination of filters is not limited to the above configuration as long as the configuration is optimal according to the environment in which it is used.

Further, a filter set having the same configuration as that of the purifying means 12 may be provided in the exhaust port Rb of the isolation chamber RA. In this case, the purifying means is provided between the suction unit 3 and the vent port Rb. It is not necessary to provide 12.

As shown in FIG. 1, the suction unit 3 of the air purifying apparatus 1 includes a front chamber 3a having an opening hermetically connected to the purifying means 12, and a pipe 3p connected to the front chamber 3a. And a hermetically sealed container 10.

As shown in FIG. 1, a suction means 11 is provided in a hollow space 10h inside a sealed container 10 in a state where external force is also hermetically sealed in the hollow space 10h. The suction means 11 is for discharging air sucked from a suction port 11a such as a blower from a discharge port lib, and the suction port 11a is open to a hollow space 10h while being separated from a pipe 3p. It is configured to suck air in the hollow space 10h. For this reason, when the suction means 11 sucks the air in the hollow space 10h, the pressure in the hollow space 10h decreases and the pressure becomes lower than in the front room 3a and the inside of the isolation room RA. The air is sucked into the hollow space 10h of the sealed container 10 through the front chamber 3a and the pipe 3p. At this time, since the air is not directly sucked into the suction port 11a of the suction means 11, the air sucked into the hollow space 10h of the sealed container 10 from the pipe 3p can form an airflow in the hollow space 10h. The reason for forming an airflow in the hollow space 10h of the sealed container 10 will be described later.

[0015] Further, one end of a pipe 4p is airtightly connected to a discharge port l ib of the suction means 11. The other end of the pipe 4p is communicated with the outside of the isolation room RA, for example, with the discharge unit 4 which is communicated with the inside of the room R where the isolation room RA is provided or outside the room R.

Needless to say, the pipe 4p is airtightly connected to the sealed container 10.

[0016] With the configuration as described above, when the suction means 11 is operated, the air in the isolation chamber RA passes through the purification means 12, the front chamber 3a, the pipe 3p, and the hollow space 10h inside the sealed container 10. It is sucked inside and is discharged outside through the pipe 4p and the discharge part 4. Since the air discharged to the outside passes through the purification means 12, bacteria and the like are present in the isolation room RA. However, since the bacteria and the like are removed by the purification means 12, the space outside the isolation room RA can be prevented from being contaminated by bacteria and the like existing in the isolation room RA and the like. In addition, the isolation room RA is configured such that portions other than the intake port Ra and the exhaust port Rb are kept airtight or substantially airtight, and the air in the isolation room RA is sucked by the suction means 11. For example, the inside of the isolation room RA is at a lower pressure than the outside due to the suction of the internal air. In other words, since the isolation room RA can be used as a negative pressure room, the interior of the isolation room RA can be used as an infection control room. Then, the air sucked into the front chamber 3a of the suction part 3 through the exhaust port Rb always passes through the purifying means 12, so that when the inside of the isolation room RA is used as an infection control room, Bacteria and the like discharged by the patient in the RA can be prevented from being discharged to the outside through the air purification device 1.

In addition, when the pressure in the isolation chamber RA decreases, the force that flows into the isolation chamber RA through the intake port Ra. Even if air flowing into the isolation chamber RA, the pressure can be kept lower than that outside the isolation chamber RA.

In addition, a heating means 4d provided with a heater for heating air, such as a heater or a burner, may be provided in the discharge section 4 or the pipe 4p. Since heating can be performed by 4d, even if bacteria, viruses, etc., which cannot be captured by the purification means 12, are killed by the heating means 4d if the bacteria, viruses, etc. are vulnerable to heat. Can be done. In particular, if the air is heated to 100 ° C or more by the heating means 4d, the air can be sterilized. If the air is further heated to 300 ° C or more, the sterilization can be performed more reliably. In particular, if the heating means 4d is provided with a reheating section for heating the heated air heated by the heating means again, the effect of sterilizing and sterilizing bacteria, viruses and the like can be further enhanced. As the reheating unit, one having a structure in which a resistance member such as a honeycomb, a punching plate, a ceramic, a sword mountain type, or a wire mesh is arranged in an air flow path can be adopted. If the temperature of such a resistance member is set to be higher than the temperature of the heated air flowing to the position of the resistance member due to the heat of the heater, the heat of a specially provided heater, or the like. The heated air can be heated again. In the reheating section, the flow of heated air is As a result, the residence time of the heated air in the reheating unit can be lengthened. In other words, since the heating time of the heated air by the resistance member can be extended, the effect of sterilizing and sterilizing bacteria and viruses can be further enhanced. In particular, the surface area is large, as in the case of a honeycomb. Therefore, the effect of sterilizing and sterilizing bacteria and viruses can be further enhanced.

Furthermore, in addition to or instead of the heating means, a germicidal lamp or a germicidal device or the like for sterilizing bacteria or the like with a chemical or the like may be provided. Even in this case, bacteria and viruses in the air are sterilized. Can be sterilized.

Furthermore, it is possible to provide only the above-mentioned heating means 4d without providing the purification means 12, but it is more reliable that bacteria and the like in the isolation chamber RA provided with both are discharged to the outside. Can be prevented.

The suction means 11 is hermetically sealed in the hollow space 10h of the sealed container 10, and the suction port 11a is open in the hollow space 10h.The force discharge port l ib is provided in the hollow space 10h. Therefore, even if air is leaked from the suction means 11, the leaked air is retained in the hollow space 10h and then sucked again from the suction port 11a. Is done. That is, since the air leaked from the suction means 11 does not leak outside from the air purifying apparatus 1, it is possible to prevent the air leaking from the suction means 11 from contaminating the space outside the isolation room RA. .

For example, when there is a possibility that bacteria etc. that cannot be captured by the purification unit 12 may be present in the isolation room RA, there is a force S. A processing means such as a heat sterilization apparatus having the same function as the above-mentioned heating means 4d or a sterilization apparatus for sterilizing bacteria and the like with a chemical or the like is provided, and air is supplied from the discharge section 4 to this processing means. If this is the case, even if bacteria or the like are present in the air and cannot be captured by the purifying means 12, the force can sterilize these bacteria and the like. It is necessary to ensure that the air does not leak into the space outside the isolation room RA while transferring the air to the processing equipment. In the case where power is applied, if the suction means 11 is hermetically sealed in the hollow space 10h of the sealed container 10, the suction means 11 Even if the air leaks, the leaked air remains held in the hollow space lOh, so that the space outside the isolation room RA can be prevented from being contaminated by the air leaking from the suction means 11.

With the above configuration, the purifying means 12 is located upstream of the suction means 11, in other words, downstream of the suction means 11 which does not need to be provided on the isolation room RA side of the suction means 11. In other words, it can be provided on the discharge unit 4 side of the suction unit 11. Then, the degree of freedom of the internal structure of the air purification device 1 can be increased.

When the air purifying apparatus 1 of the present embodiment is operated, the air cleanliness in the isolation room RA is increased to a class 10,000 (in the case of US Federal Standard 209E (JIS—B—9920, class 7 ) Or more, and if the airtightness in the isolation room RA is high, the class 1,000 (U.S. Federal Standard 209E (Class 6 in the case of JIS—B-9920) and the Class 100 (U.S. Federal Standard 209E (If J IS-B-9920, it is possible to maintain a cleanliness level close to Class 5.) In addition, in order to maintain a comfortable living environment in the isolation room RA, air conditioning equipment is installed in the isolation room RA. In this case, if the air conditioner is operated, the cleanliness will be reduced, but even in such a case, the cleanliness of class 1,000 (class 6 in the case of US Federal Standard 209E CFIS—B—9920) will be maintained. can do.

[0020] Further, since the suction means 11 is sealed in the hollow space 10h of the sealed container 10, even if the suction means 11 is increased in size, it is possible to prevent the noise generated by the suction means 11 from deteriorating the indoor environment. Can be. For example, a device having a suction force of only several hundred Pa used for a general indoor installation type air purifying device and having a suction force of several tens kPa or more compared with a device having a suction force of a large size. Can be used. Also force, by the suction port 11a of the suction means 11 is separate from the pipe 3p, can reduce the pressure loss generated in the suction port 11a of the suction means 11, when the intake air from the sealed container 1 ₀ hollow space 10h Generated noise can be reduced. Furthermore, since the suction port 11a of the suction means 11 is separated from the pipe 3p, the pipe 3p connecting the front chamber 3a and the inside of the hollow space 10h of the sealed container 10 can have a freely designed pipe diameter ゃ number. The cross-sectional area of each pipe 3p can be smaller than the cross-sectional area of the front chamber 3a or the cross-sectional area of the hollow space 10h of the sealed container 10. Then, noise generated when air flows from the front chamber 3a into the sealed container 10 can be reduced. Further, if the size of the suction means 11 increases, the heat generated by the suction means 11 also increases. Therefore, if the suction means 11 is sealed in the hollow space 10h of the hermetically sealed container 10, the failure of the suction means 11 due to poor cooling may cause a problem. Become. However, in the case of the air purifying apparatus 1 of the present embodiment, an airflow is formed in the hollow space 10h of the sealed container 10, and the suction means 11 is cooled by the airflow. Even if the suction means 11 is sealed in the hollow space 10h of the sealed container 10, the temperature of the suction means 11 can be increased and damaged.

[0022] The pipe 3p, the sealed container 10, the suction means 11, and the pipe 4p are the air transfer means described in the claims, and the pipe 3p is the intake passage described in the claims, and the pipe 4p Is an exhaust passage according to the claims.

[0023] In the above-mentioned isolation facility, outside air is introduced into the isolation chamber RA from the intake port Ra of the isolation chamber RA. However, the intake section 3 is isolated from the hollow space 10h of the sealed container 10. If a ventilation passage 3c communicating with the space outside the room RA is provided, and a circulation passage 4c for returning a part or all of the air supplied from the suction means 11 to the inside of the isolation room RA is provided in the discharge part 4. The outside air can be introduced into the isolation room RA together with the air purified by the purification means 12. Then, it is not necessary to provide the inlet Ra of the isolation room RA, so that the airtightness of the isolation room RA can be further improved.

In addition, the circulation passage 4c is provided with a flow regulator Fc for adjusting the amount of air flowing through the circulation passage 4c, in other words, a flow regulator Fc for adjusting the amount of air returned into the isolation chamber RA. Is supplied from the suction means 11 so that the amount of air returned from the circulation passage 4c into the isolation chamber RA is smaller than a part of the air supplied from the separation chamber RA, specifically, the amount of air sucked from the isolation chamber RA. If the air is returned to the isolation room RA, the isolation room RA can be ventilated by the outside air introduced into the hollow space 10h of the sealed container 10 from the ventilation passage 3c while maintaining the inside of the isolation room RA at a negative pressure.

[0024] In addition, all or a part of the air supplied from the suction means 11, specifically, the amount of the internal force of the isolation chamber RA returned from the circulation passage 4c to the interior of the isolation chamber RA is larger than the amount of the sucked air. By returning the air supplied from the suction means 11 to the inside of the isolation room RA as described above, the inside of the isolation room RA can be made a positive pressure, so that the inside of the isolation room RA can be made a sterile room. In this case, in order to prevent bacteria and the like contained in the outside air from entering the isolation room RA, the ventilation passage 3c is circulated. A device having the same air purification capability as the purification means 12 is provided in both or one of the annular passages 4c.

[0025] When the inside of the isolation room RA is set to a positive pressure, the force required to allow the air in the isolation room RA to be discharged to the outside is defined by the above-described isolation room RA having the intake port Ra. Then, the air in the isolation chamber RA can be exhausted from the intake port Ra to the outside, and the external air can be sucked into the isolation chamber RA from the intake port Ra. It is suitable because it can be used at any pressure.

Furthermore, if a flow regulator Fc that regulates the amount of air flowing through the ventilation passage 3c is also provided in the ventilation passage 3c that is not limited to the circulation passage 4c, simply adjusting each of the flow regulators Fc allows the inside of the isolation room RA to be adjusted. This is preferable because the negative pressure and the positive pressure can be switched.

Furthermore, an outside air introduction passage for supplying outside air directly into the isolation room RA may be provided without providing the ventilation passage 3c and the circulation passage 4c, or together with the ventilation passage 3c and the circulation passage 4c. In this case as well, if the amount of air supplied into the isolation room RA from the circulation passage 4c and the outside air introduction passage is made larger than the amount of air sucked from the inside of the isolation room RA, the inside of the isolation room RA will be increased. Can be set to a positive pressure, and conversely, the circulation passage 4c and the outside air introduction passage can also be configured such that the amount of air supplied to the isolation chamber RA is smaller than the amount of air sucked from the isolation chamber RA. The pressure inside the isolation room RA can be made negative. When the inside of the isolation room RA is set to a positive pressure, that is, when the inside of the isolation room RA is a sterile room, the outside air introduction path has the same air purification capability as the purification means 12 and the outside air. It goes without saying that a transfer means for transferring the data to the isolation room RA is provided.

[0026] Further, if the air purification device 1 of the isolation facility is used alone, not only with the isolation room RA, the inside of the living room R in which the air purification device 1 is installed can be set to a negative pressure or a positive pressure. can do. In this case, the air purifying apparatus 1 may be used with the above-described structure, but the structure of the suction unit 3 may be kept as it is, and the discharge unit 4 may have the following structure.

FIG. 2 is a diagram illustrating the use of an air purification device 1B according to another embodiment. FIG. 3 is a schematic block diagram of an air purification device 1B according to another embodiment.

In FIG. 2, reference numeral 2 indicates a frame of the air purifying apparatus 1B of the present embodiment. As shown in FIG. 2, the frame 2 is provided with a suction port 2a at a lower portion thereof. this The suction port 2a is in communication with the opening of the front chamber 3a of the suction unit 3, and the cleaning means 12 is disposed between the suction port 2a and the opening of the front chamber 3a.

A discharge port 2b is provided at an upper portion of the frame 2, that is, at a position separated from the suction section 3, and a discharge section 4 communicates with the discharge port 2b, and the discharge port 2b and the discharge section 4 are connected. Also, a plurality of filters F having the same function as that of the purification means 12 are disposed between them.

As shown in FIG. 2, the discharge unit 4 includes a discharge unit 22 such as a blower that transfers air supplied from the suction unit 11 of the suction unit 3 toward the discharge port 2b. The discharge port of the discharge unit 22 is air-tightly communicated with the suction unit 11 of the suction unit 3 through the muffling member 21. Further, the discharge port of the discharge means 22 is air-tightly connected to the discharge section 4 via a sound deadening member 23.

For this reason, if the discharge means 22 is operated simultaneously with the suction means 11, the air supplied from the suction means 11 can be supplied to the living room R through the discharge port 2b. Moreover, before the air is discharged into the living room R, the air is again purified by the filter F provided between the discharge port 2b and the discharge part 4, so that the air supplied into the living room R It is possible to further increase the rate of purification.

Therefore, according to the air purifying apparatus 1B of the present embodiment, it is possible to purify the air sucked from the living room R and return the air to the living room R. Since the suction port 2a for sucking the air and the discharge port 2b for discharging the purified air are separated from each other, the air can be circulated effectively. Therefore, the air in the living room R can be effectively purified.

Also, the function of sucking air from the suction port 2a can be borne by the suction means 11 of the suction section 3, and the function of discharging air from the discharge port 2b can be borne by the discharge means 22 of the discharge section 4. Each air transfer means can be made more compact as compared with the case where suction and discharge are performed by one air transfer means. Then, the degree of freedom of the configuration of the air purification device 1B and the arrangement of each device in the frame 2 is increased, so that the air purification device 1B can be configured as a comparator, and the air purification device 1B can be configured to be mobile. You can also. Since the air purifying apparatus 1B only needs to be able to air-tightly communicate between the suction unit 3 and the discharge unit 4, if the air purifying apparatus 1B is configured to be divided, the transportation of the apparatus is further improved. It will be easier. Further, since the air purifying device IB of the present embodiment is mainly installed in the living room R to purify the air in the living room R, the air purifying device 1B is generated. Force in which noise is a problem In the air purification device 1B of the present embodiment, all the devices are accommodated in a frame 2 formed of a sound insulating material, and the suction force 3 has the above-described structure. Therefore, noise can be further reduced. In addition, the noise generated by the air flowing through the discharge section 4 is reduced by providing the silencers 21 and 23 before and after the discharge means 22. Accordingly, since the noise generated by the air purifying apparatus 1B is significantly reduced, it is possible to prevent the environment from being degraded due to the provision of the air purifying apparatus 1B in the living room R.

As shown in FIGS. 2 and 3, an air introduction unit for supplying the air in the living room R to the discharge unit 4 between the discharge unit 4 and the suction unit 3 with a different force from the suction unit 3. You can set 5. The air supply unit 5 is configured, for example, with a filter for dust removal, which is provided on the frame 2 at a position remote from the suction port 2a, such as the back surface thereof, to catch relatively rough eyes, dust, and the like. The air supply unit 5 is air-tightly connected to the muffling member 21 of the discharge unit 4 by a duct or the like. In this case, the suction means 11 and the discharge means 22 are operated at the same time, and the flow rate of the air discharged from the discharge section 4 to the living room R is greater than the flow rate of the air supplied from the suction means 11 to the discharge port 2b. If it is adjusted so that the air is supplied, the shortage of air is sucked from the air supply unit 5 and discharged from the outlet 2b. If the air supply unit 5 is arranged at a position distant from the suction port 2a, the air discharged from the discharge port 2b flows into the living room R only in the direction toward the suction port 2a. A flow toward the air supply unit 5 will also occur. Then, the flow in the living room R can be complicated, and all the air discharged from the discharge port 2b can be prevented from being sucked into the suction port 2a. Can be prevented from circulating, and the entire interior of the living space R can be purified.

[0032] Instead of the air supply unit 5, a pipe 7 communicating the hollow space 10h of the sealed container 10 of the suction unit 3 with the living room R may be provided. In this case, even if the flow rate discharged from the discharge section 4 to the living room R is the same as the flow rate of the air supplied from the suction means 11 to the discharge section 4, the suction port 2a also reduces the flow rate of the suctioned air. Can be reduced. If a filter having the same function as the purifying means and 12 is interposed in the pipe 7, the repelling force is about the same as the air sucked from the suction port 2 a. The purified air can be supplied to the discharge unit 4.

A pipe 7 is provided to communicate between the inside of the hollow space 10h of the sealed container 10 of the suction part 3 and the outside of the living room R, and the flow rate discharged from the discharge unit 20A to the living space R and the suction means 11 If the flow rate of the air supplied to the part 4 is the same flow rate, the amount of air supplied from the discharge port 2b to the living room R becomes larger than the amount of air sucked from the living room R through the suction port 2a. The inside of living room R can be pressurized. In other words, since the inside of the living room R can be made to have a positive pressure and can be a space filled with purified air, the inside of the living room R can be made a sterile room by the air purification device 1B. .

In particular, if a valve 7b is interposed in the pipe 7 communicating between the inside of the hollow space 10h of the sealed container 10 of the suction section 3 and the outside of the living space R, if necessary, the air purifying device 1B Roles can be changed. For example, when the valve is opened, it can be used as a device that makes the interior of the living room R a sterile room, and when the valve is closed, it can be used as a device that simply purifies the air in the living room R.

A plurality of pipes 7 may be provided.The pipe 7 communicates the inside of the hollow space 10h of the sealed container 10 of the suction unit 3 with the living room R, and the inside of the hollow space 10h of the sealed container 10 of the suction unit 3 and the living room. Both pipes 7 communicating with the outside of the scale may be provided.

Further, the pipe 8 communicating the discharge section 4 with the suction means 11 of the suction section 3 may be provided with a purified air discharge section 6 communicating the pipe 8 with the outside of the living room R. If a flow adjusting section 6b for adjusting the flow rate of the air flowing through the purified air discharge section 6 is provided at the connection between the purified air discharge section 6 and the pipe 8, the suction section 11 of the suction section 3 can be connected to the discharge section 4. Some of the air supplied to the air can be exhausted to the outside. Then, since the inside of the living space R can be decompressed and the inside of the living room R can be set at a negative pressure, the inside of the living room R can be made into an infectious disease countermeasure room by the air purifying apparatus 1B.

When the outside of the living room R and the hollow space 10h of the sealed container 10 of the suction unit 3 are communicated with each other by the pipe 7, the suction means 11 force discharging unit 4 If the flow rate toward the room is increased, the outside air supplied from the pipe 7 can be introduced into the room R while discharging part of the air in the room R to the outside. The inside of R can be ventilated. In the case where the air supply unit 5 is provided, If the air supply unit 5 is configured to communicate with the outside, the inside of the living room R can be ventilated without providing the pipe 7.

[0034] Furthermore, if the purifying means having the same function as the above-described heating means 4d is provided in the pipe 6 or the pipe 8 of the air purifying apparatus 1B of the present embodiment, the air is discharged to the outside. Even if bacteria or the like that cannot be captured by the purification means 12 are present in the air or the air to be returned into the living room R, the bacteria and the like can be sterilized.

[0035] When the air purifying apparatus 1B as shown in Fig. 3 is operated in a ward of a general ward in a normal hospital or the like with the windows and the like closed, the air cleanliness in the ward is reduced to Class 10 , 000 (U.S. Federal Standard 209E (Class 7 if JIS—B-9920)) or higher, and Class 1, 000 if the room is more airtight than a general ward room. (It is possible to maintain a cleanliness level of at least U.S. Federal Standard 209E (Class 6 for JIS-B-9920) and close to Class 100 (U.S. Federal Standard 209E (Class 5 for JIS-B-9920). If the air conditioning equipment in the sickroom is activated, the cleanliness level will be reduced, but even in that case, it can be over 1,000 class (U.S. Federal Standard 209E (Class 6 if JIS—B—9920). Purity can be maintained.

Industrial applicability

[0036] The air purifying apparatus of the present invention can purify indoor air, for example, in a welfare facility for the elderly, a hospital, or a research facility such as a company or a university, and can sterilize air even in a living room of a general building. Room or infectious disease control room.

Brief Description of Drawings

FIG. 1 is a schematic explanatory diagram of an isolation facility including an air purifying apparatus 1 of the present embodiment.

FIG. 2 is an explanatory diagram of a use state of an air purifying apparatus 1B of another embodiment.

FIG. 3 is a schematic block diagram of an air purifying apparatus 1B of another embodiment.

Explanation of symbols

[0038] 1 Air purification device

3 Suction section

4 Discharge section

11 Intake means Purification means Living space

Claims

The scope of the claims

[1] An air purification device used for purifying air in a predetermined purification space, wherein the air purification device comprises:

A suction unit that suctions air in the purification space,

A purifying unit for purifying air sucked from the purifying space by the suction unit; and a discharge unit for discharging the air purified by the purifying unit.

The suction unit,

Inside, a sealed container having a hollow space hermetically sealed with an external cap, an intake passage communicating between the hollow space in the sealed container and the purification space, and a hollow space in the sealed container. An exhaust passage communicating with a discharge portion; and suction means sealed in a hollow space of the sealed container, sucking air in the hollow space, and discharging the air into the exhaust passage.

The suction means,

A suction port for sucking air in the hollow space of the sealed container is separated from one end of the intake passage on the sealed container side,

An outlet for discharging the air to an exhaust passage is air-tightly connected to one end of the exhaust passage on the sealed container side.

An air purification device characterized by the above-mentioned.

[2] The air intake section includes a ventilation passage communicating the hollow space in the sealed container with a space outside the purification space,

A circulation passage for returning part or all of the supplied air to the purification space;

The air purification device according to claim 1, wherein:

[3] The discharge section is:

A circulation passage for returning a part or all of the supplied air to the purification space;

2. The air purification device according to claim 1, further comprising an outside air introduction passage for supplying air outside the purification space to the purification space.

[4] An isolation facility comprising an isolation room forming a living space isolated from an external space, and an air purifying device for sucking and purifying air in the isolation room,

The air purification device is the air purification device according to claim 1, 2, or 3, wherein the isolation chamber is:

It has an exhaust port that is air-tightly connected to the suction section of the air purification device.

Isolation equipment characterized by the following.

[5] air transfer means for discharging the gas sucked from the suction port to the discharge port,

Inside, a sealed container having a hollow space hermetically sealed with an external cap,

An air intake passage communicating the hollow space and the outside in the sealed container,

An exhaust passage communicating the hollow space and the outside in the sealed container,

Suction means for being enclosed in the hollow space of the sealed container, sucking air in the hollow space, and discharging the air into the exhaust passage;

The suction means,

Air transfer means characterized by the above-mentioned.