JP2022025058A - Virus inactivating filter, manufacturing method of virus inactivation filter, and antivirus treatment method - Google Patents

Abstract

To make antivirus treatment in a room space easy.SOLUTION: Particles 11 are, on a surface of a second filter 5, for particles 13 and 14 smaller than 1 μm, in the second filter 5 and a first filter 3, about a little less than 70% are captured, the remainder passes through the first filter 3 (Fig. 3A). Since the particles 11 come into contact with a chemical layer 7, viruses attached to these are antivirus treated by the chemical layer 7 (Fig. 3B). On the deposit surface, the chemical 8 is coated again (Fig. 3C), on the deposit 11, a deposit 15 further deposits (Fig. 3D). The viruses attached to the deposit 15 are made harmless by the chemical coated on a surface of the deposit 11.SELECTED DRAWING: Figure 3

Description

The present invention relates to an antiviral treatment method using a filter, and more particularly to a filter attached to the outside of an air conditioner.

The pandemic of Coronavirus disease (COVID-19) in the spring of 2020 is important for killing bacteria indoors and inactivating viruses (hereinafter referred to as antibacterial treatment and antivirus treatment, respectively). I made them recognize the sex.

As a drug for such antibacterial treatment and antiviral treatment, a sterilizing / antibacterial spray "bactericidal" manufactured by 1line Co., Ltd. is known. Bacteria and viruses adhering to objects can be treated with antibacterial and antiviral treatments by wiping them off with such chemicals.

On the other hand, it was difficult to treat bacteria and viruses floating in the space with antibacterial and antiviral treatments.

Patent Document 1 discloses a room provided with an air-conditioning device capable of preventing the spread of a virus and the spread of infection in the room.

Jitsuto 3226657 Bulletin

Certainly, in a special environment, for example, in a facility such as a laboratory that goes in and out with protective clothing, it is possible to install a special fine filter that can collect viruses and collect bacteria and viruses in the room with the filter. Is.

However, viruses are as small as 0.1 μm or less, and a filter that can reliably collect these viruses has a high pressure loss, and it is necessary to provide air conditioning equipment that can maintain the suction power accordingly. Further, in order to make these possible, it is necessary to make a strictly closed space, and it cannot be applied to a general room where frequent entry and exit are performed.

An object of the present invention is to solve the above-mentioned problems and to provide an antiviral treatment method capable of antibacterial treatment and antiviral treatment of bacteria / viruses floating in a space in a room, or a filter for the same.

(1) The virus inactivating filter according to the present invention is a sheet-shaped virus inactivating filter attached from above the intake port of an air conditioner, and is composed of a non-woven fabric or a split fiber filter, and the intake is described. A hydrophilic paint layer containing a virus inactivating agent is provided on the first surface opposite to the mouth side, and the fibers constituting the hydrophilic paint layer have the hydrophilic paint on the first surface side. The hydrophilic paint is not applied to the opposite side of the first surface side, and the paint is charged except for the hydrophilic paint layer. At a wind speed of 1 m / s, the initial pressure loss is 20 pa or more and 60 pa or less. The collection efficiency of 0.3 μm particles is 30% or more. Therefore, antiviral treatment can be easily performed for viruses existing in the air.

(2) The method for manufacturing a virus inactivating filter according to the present invention is a method for manufacturing a sheet-shaped virus inactivating filter that is attached from above the intake port of an air conditioner at an initial wind speed of 1 m / s. Prepare a non-woven or split fiber sheet-like filter with a pressure loss of 20 pa or more and 60 pa or less and a particle collection efficiency of 0.3 μm of 30% or more, and apply a predetermined pressure in the direction in which the first surface is dented while applying a virus inactivating agent. The hydrophilic coating layer containing the above is printed, and after the printing, the sheet-shaped filter is charged. Therefore, it is possible to provide a filter capable of easily performing antiviral treatment for viruses existing in the air.

(3) In the anti-virus treatment method according to the present invention, the Fils inert filter is attached in a sheet shape to the intake port of the air conditioning equipment, air is taken in from the intake port, anti-virus treatment is performed, and the virus-free treatment is performed. When the efficacy of the activator disappears, the virus inactive agent is sprayed on the dust collected on the first surface opposite to the intake port side, whereby the collected dust is removed. The hydrophilic coating layer is anti-virus treated. After use in this way, by spraying the virus inactivating agent on the dust, the antiviral treatment for each dust becomes possible.

(4) The anti-virus treatment method according to the present invention is to collect particles of 0.3 μm with an initial pressure loss of 20 pa or more and 60 pa or less at a wind speed of 1 m / s at the intake port of an air conditioning facility that regulates the temperature of indoor air. 30% or more of the filter is installed, a virus inactivating agent is sprayed on the surface of the filter opposite to the intake port side, air is taken in from the intake port, the virus is collected, and the virus is inactive. Anti-virus treatment is performed with the agent. Therefore, antiviral treatment can be easily performed for viruses existing in the air.

(5) In the antiviral treatment method according to the present invention, the treatment of spraying the virus inactivating agent on the solid particles collected on the surface of the filter is executed. Therefore, antiviral treatment can be performed for each solid particle adhering to the filter surface.

(6) In the anti-virus treatment method according to the present invention, the filter has a first filter having a particle collection efficiency of 0.3 μm of 30% or more and a side opposite to the intake port side of the first filter. It is located and has a second filter that collects 1-10 μm dust, and the virus inactivating agent is sprayed onto the second filter.

Therefore, antiviral treatment can be performed for each solid particle adhering to the filter surface.

(7) In the antiviral treatment method according to the present invention, the second filter is further provided on the surface of the first filter opposite to the side where the second filter is provided. By sandwiching both sides of the first filter with the second filter in this way, the direction is not mistaken when setting. Further, the particles can be further captured by the second filter, and the antiviral treatment with the virus inactivating agent becomes possible.

(8) In the antiviral treatment method according to the present invention, the first filter is a charged non-woven fabric or a split fiber filter, and in the second filter, the sprayed virus inactivating agent is the first filter. It has a function to prevent the arrival of the liquid agent. Therefore, a charging type filter can be adopted as the first filter.

(9) In the antiviral treatment method according to the present invention, the first filter has a collection efficiency of 0.3 μm particles of 30% or more. Therefore, antiviral processing of viruses in the air can be performed in a shorter time.

(10) In the antiviral treatment method according to the present invention, the first filter has a collection efficiency of 0.3 μm particles of 60 to 69%. Therefore, antiviral processing of viruses in the air can be performed in a shorter time.

(11) In the anti-virus treatment method according to the present invention, the air conditioning equipment is a housing having an intake port and an exhaust port and incorporating a blower, and the intake port and the exhaust port are provided with the filter. Has been done. By having two filters in this way, virus removal becomes possible more efficiently.

(12) In the anti-virus treatment method according to the present invention, the housing is rotatable so that the intake port and the exhaust port are located in the horizontal direction. Therefore, it is possible to supply virus-treated air toward the ceiling. This improves virus processing in rooms with air conditioner inlets on the ceiling.

(13) The antiviral filter according to the present invention is a filter installed at the intake port of an air conditioner that regulates the temperature of indoor air, and has an initial pressure loss of 20 pa or more and 60 pa or less at a wind speed of 1 m / s, 0.3. A first filter with a collection efficiency of μm particles of 30% or more, a non-woven fabric or split fiber made of hydrophilic material fibers located on the opposite side of the first filter from the intake port side, 1 to 1 to It has a second filter that collects 10 μm dust, and a virus inactivating agent is sprayed on the second filter. Therefore, antiviral treatment can be easily performed for viruses existing in the air.

(14) The air conditioner according to the present invention is a housing having an intake port and an exhaust port.
An air conditioner including a fan built in the housing, a suction port side filter provided in the suction port, and an exhaust port side filter provided in the exhaust port, wherein the suction port side filter and the said. The filter on the exhaust port side is a filter with a wind speed of 1 m / s, an initial pressure loss of 20 pa or more and 60 pa or less, and a particle collection efficiency of 0.3 μm of 30% or more. Therefore, the virus inactivating agent can be sprayed on these intake port side filters and exhaust port side filters. This makes it possible to efficiently circulate the antiviralally treated air.

(15) In the air conditioner according to the present invention, the suction port side filter and the exhaust port side filter have an initial pressure loss of 20 pa or more and 60 pa or less, and a collection efficiency of 0.3 μm particles of 30 at a wind speed of 1 m / s. A second filter, which is located on the side opposite to the intake port side of the first filter of% or more, and is a non-woven fabric or split fiber composed of fibers of a hydrophilic material, and collects dust of 1 to 10 μm. Has a filter. Therefore, antiviral treatment can be performed for each solid particle adhering to the filter surface.

(16) In the air conditioner according to the present invention, the virus inactivating agent is sprayed on the second filter. Therefore, antiviral treatment can be easily performed for viruses existing in the air.

(17) In the method of using the air conditioner according to the present invention, the treatment of spraying the virus inactivating agent on the solid particles collected on the surface of the second filter is executed. Therefore, antiviral treatment can be performed for each solid particle adhering to the filter surface.

(18) The method for manufacturing the virus capture filter according to the present invention is to capture particles of 0.3 μm with an initial pressure loss of 20 pa or more and 60 pa or less at a wind speed of 1 m / s at the intake port of an air conditioner that regulates the temperature of indoor air. A filter with a collection efficiency of 30% or more is installed, a virus inactivating agent is sprayed on the surface of the filter, air is taken in from the air intake port, and solid particles having the virus attached to the filter surface are captured. Catch the activated virus. This makes it possible to obtain an antiviral-treated filter on the filter surface.

The anti-virus treatment method according to the present invention is as follows: A) A filter is installed at the intake port of an air conditioning facility, a virus inactivating agent is sprayed on the surface of the filter opposite to the intake port side, and air is blown from the intake port. This is an anti-virus treatment method that performs anti-virus treatment by incorporating the above. B) The filter has the following second filter laminated in a sheet shape on the following first filter. Alternatively, it is composed of charged split fiber, with an initial pressure loss of 20 pa (N / m ² ) or more and 60 pa (N / m ² ) or less, and a collection efficiency of 0.3 μm particles of 30% or more at a wind speed of 1 m / s. 1st filter, b2) A second filter that is located on the opposite side of the first filter from the intake port side and collects dust of 1 to 10 μm, and the virus inactivating agent to be sprayed is the above. A second filter having a liquid agent arrival blocking function that blocks the arrival of the first filter, C) After collecting solid particles on the surface of the second filter, the virus inactivating agent is placed on the collected fixed particles. Is sprayed on the surface of the collected solid particles to perform anti-virus treatment, whereby the collected solid particles are further subjected to anti-virus treatment on the collected solid particles. In this way, after the solid particles are collected on the surface of the second filter, the virus inactivating agent is sprayed on the collected fixed particles to perform anti-virus treatment on the surface of the collected solid particles. This makes it possible to perform anti-virus treatment on the collected solid particles on the collected solid particles.

The anti-virus treatment method according to the present invention is A) an anti-virus treatment method using an air conditioner having the following a1) to a6), a1) a housing having an intake port and an exhaust port, and a2) the housing. It is equipped with a fan built into the body, a3) a suction port side filter provided in the suction port, a4) an exhaust port side filter provided in the exhaust port, and a5) the suction port side filter and the exhaust. In each of the mouth-side filters, the following second filters are laminated in a sheet shape on the following first filters, and a51) the sheet is composed of a chargeable non-woven fabric or a chargeable split fiber fiber. The first filter with an initial pressure loss of 20 pa (N / m ² ) or more and 60 pa (N / m ² ) or less and a 0.3 μm particle collection efficiency of 30% or more at a wind speed of 1 m / s in a state, a52) The second filter is located on the opposite side of the first filter from the intake side and collects dust of 1 to 10 μm, and the sprayed virus inactivating agent blocks the arrival of the first filter. A second filter having a liquid agent arrival blocking function, a6) In both the suction port side filter and the exhaust port side filter, the sprayed virus inactivating agent blocks the arrival of the first filter. B) After collecting solid particles on the surface of the second filter, the virus inactivating agent is sprayed on the collected fixed particles to prevent the collected solid particles. The surface is anti-virus treated, thereby anti-virus treating the solid particles further collected on the collected solid particles. In this way, after the solid particles are collected on the surface of the second filter, the virus inactivating agent is sprayed on the collected fixed particles to perform anti-virus treatment on the surface of the collected solid particles. This makes it possible to perform anti-virus treatment on the collected solid particles on the collected solid particles.

The meaning of the terms in the present specification will be described. In the embodiment, the case where the interior of a room such as a building is used as the "indoor" has been described, but the "indoor" is a concept including a closed space in which a plurality of people can exist, such as in a car, an aircraft, and a ship. Is.

Further, the "air conditioner" includes not only the air conditioner as in the first embodiment but also the air conditioner as in the third embodiment.

The features, other purposes, uses, effects, etc. of the present invention will be clarified by referring to the embodiments and drawings.

It is a perspective view which shows the state which attached the filter 1 to the suction port of the air conditioner installed in the ceiling of a room. It is a figure explaining the structure and function of the filter 1. It is a figure for demonstrating the dust and a virus collected by a filter 1. It is a perspective view of the air conditioner 50. It is a figure for demonstrating the air conditioner 50. It is a figure of the air conditioner 50, 80.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1. 1. First Embodiment FIG. 1 shows a state in which the filter 1 is attached to the suction port of the air conditioner 100 installed on the ceiling of the room. In the present embodiment, the filter 1 is attached with double-sided tape or the like so as to completely cover the suction port of the air conditioner 100.

The configuration of the filter 1 will be described with reference to FIG. 2A. The filter 1 is composed of a first filter 3 and a second filter 5 located on the suction port side of the air conditioner 100. In the present embodiment, the first filter 3 can collect about 69 to 65% of particles having a diameter of 0.3 μm, and has a wind speed of 1 m / s and a pressure loss of 30 pa or less, without forming a charged non-woven fabric of polyolefin fiber into a pleated shape. , It was composed as a sheet. This is because a gap is created if it is pleated when it is attached to the suction port of the air conditioner 100. Further, in order to attach it to the intake port as a pleated shape, a frame for holding the bent state is required. For this reason, if there is no frame with various shapes and sizes of the air supply port, it cannot be attached to the intake port of the air conditioner. In order to avoid such a problem, the filter was left in the form of a sheet without bending. This makes it possible to attach it to air conditioners of various shapes and sizes around the world.

It should be noted that this type of filter has the lowest efficiency of collecting 0.3 μm particles, and even if it is larger or smaller than this, the collection rate is higher than that of 0.3 μm particles. This is because particles larger than 0.3 μm are collected in the gaps of the filter, while smaller particles are adsorbed on the fibers by Brownian motion, Coulomb force, or electrostatic effects due to charging when passing through the filter.

Further, in the present embodiment, vinylon fiber having a cross-sectional diameter of about 1 to 10 μm is used as the second filter 5, and a dry staple fiber non-woven fabric having a density of 0.25 to 0.34 g / cc is used. The second filter 5 plays a role of shaping and holding the first filter 3. Further, since vinylon has high hydrophilicity, as will be described later, even if the liquid agent is sprayed on the surface of the second filter 5, the liquid agent does not penetrate into the charged nonwoven fabric and the sprayed liquid agent is diffused on the surface of the vinylon nonwoven fabric. be able to.

The combination of the first filter 3 and the second filter 5 employs the spray laminating method, but is not limited thereto.

The density of the filter 1 is about 96.5 ± 5 g / m ² and the thickness is about 4 ± 1.5 mm. As a result, the volume per 1 m ² is 84.1 cm ³ / m ² , the volume per 1 m ² of the non-woven fabric including voids is 4000 cm ³ / m ² , and about 97.9% is calculated as voids.

A drug layer 7 having antibacterial and antiviral effects is formed on the surface of the second filter 5. The drug layer 7 is a jodmethyltrisulphon having a bactericidal and sterilizing effect, a bignide β having a bactericidal and sterilizing effect and inactivating a virus such as influenza in the test results, and a photocatalytic material. It is formed by spraying a liquid agent containing titanium oxide. Titanium oxide, which is a photocatalytic material, decomposes bacteria and molds by oxidation and destroys the virus envelope.

In this embodiment, the above drug was used at 15 ml / m ² .

As for the evaluation of the physical properties of the filter 1 having the drug layer 7, the pressure loss was 2.5 Pa and the collection efficiency was 68.5% under the following measurement conditions.

Measurement conditions One-pass (single blow) wind speed: 0.053 m / sec, measurement area: 0.01 square meters, air volume: 0.00053 cubic meters / sec, measurement time: 4 sec (air volume: 0.00212 cubic meters), test dust: NaCl particle diameter: 0.3 μm, dust concentration: 14 mg / m ³ .

Such conditions (wind speed: 0.053 m / sec, pressure loss 2.5 Pa) are approximately equivalent to a pressure loss of 30 pa if the wind speed is 1 m / s.

FIG. 2B shows a cross-sectional view of the filter 1. When the air conditioner 100 is operated, the virus 13, the bacterium 14, and the dust 11 to which the virus or the bacterium adheres are sucked in the direction of the arrow α.

The antibacterial / antiviral treatment of bacteria / viruses by the filter 1 will be described with reference to FIG.

First, the particles 11 having a size of 1 μm or more are mainly collected on the surface of the second filter 5, and the particles 13 and 14 having a size of less than 1 μm are about 70% or less in the second filter 5 and the first filter 3. It is collected and the rest passes through the first filter 3 (see FIG. 3A). This is because the collection rate of the first filter 3 is about 65 to 69% at 0.3 μm.

Here, the particles 11 collected on the surface of the second filter 5 come into contact with the drug layer 7. Therefore, the bacteria and viruses adhering to the particles 11 are subjected to antiviral treatment by the drug layer 7 formed on the surface of the second filter 5 (see FIG. 3B). In addition, when used indoors, antiviral treatment is also performed by the photocatalytic effect.

In this way, the bacteria / viruses adhering to the particles such as dust accumulated on the intake surface are detoxified by the chemicals on the surface of the second filter 5.

The chemical is applied again to the deposited surface of the particles to form an additional chemical layer 8 (see FIG. 3C). As a result, another particle 15 is deposited on the particle 11 on the surface of the second filter 5 (see FIG. 3D).

In this way, the bacteria / viruses adhering to the deposit 15 deposited on the deposit 11 are detoxified by the chemicals applied to the surface of the deposit 11.

This makes it possible to detoxify the deposit and maintain its efficacy within the efficacy period of the drug solution. Therefore, even if the sediment is exfoliated, no particular problem occurs.

The collection rate and pressure loss adopted for the first filter 1 will be described. Conventionally, there are filters that can collect fine particles. However, it is not possible to attach a filter that collects 99.7% or more of the virus through such a single filter to the suction port of a normal air conditioner. This is because such a filter has a high pressure loss and causes a failure.

In the present embodiment, the collection rate is a filter capable of collecting about 65 to 69% of particles of 0.3 μm at a wind speed of 1 m / s and a pressure loss of 30 pa or less. Even with this level of collection rate, about 99.9% or more of the virus can be removed in 60 minutes. This will be described below.

Assuming that a ceiling cassette air conditioner (2 horsepower (5.0 KW), weak operating intake volume of 750 cubic meters) is installed in a room with an area of 48 square meters and a ceiling height of 2.5 m, the following formula holds.

The above air conditioner takes in 750 cubic meters after operating for 1 hour. On the other hand, since there is an air volume of 48 square meters * 2.5 meters = 120 cubic meters in the room, it is possible to circulate 6.25 times in one hour.

In reality, particles smaller or larger than 0.3 μm particles are more likely to be collected than 65-69%, so if this is 70%, the transition will be as follows.

1st -30% residual collection 2nd -30 * 70% = 21% collection, 9% residual collection 3rd -9 * 70% = 6.3% collection, 2.7% residual collection 4 -2.7 * 70% = 1.89% was collected, 0.81% was collected 5th time-0.81 * 70% = 0.56% was collected, 0.25% was collected 6th-0.25 * 70% = 0.17 % And 0.08% residual collection, that is, about 99.92% antibacterial and antiviral treatment is possible in one hour.

In this embodiment, the medicinal agent 7 is formed on the surface of the second filter 5 at the time of use, but it may be formed in advance. This is because the drug solution constituting the drug layer 7 is subjected to antibacterial and antiviral treatment by a chemical reaction, so that the drug effect is not lost unless ion exchange or a chemical reaction is carried out.

Normally, the titanium oxide coating disinfects the surface of solid objects such as tables and walls, and then sprays titanium oxide to neutralize bacteria and viruses adhering to the surface of titanium oxide. On the other hand, in this case, dust, dust, or solid particles are collected on the filter surface, and by coating with titanium oxide on the filter surface, the antibacterial / inactivating surface including dust and particles is applied. To. That is, a drug is attached to the surface of the filter to be replaced in a certain period of time, and the solid particles adhering to the surface of the filter are treated with antibacterial and antiviral treatment.

2. 2. 2nd Embodiment In this embodiment, as the filter 1, a filter in which two filters of the first filter 3 and the second filter 5 are combined is adopted, but instead of these, a particle of 0.3 μm is 65 to 69. A nanofiber non-woven fabric (cellulose nanofiber, etc.) that can collect about% and has a wind speed of 1 m / s and a pressure loss of 30 pa or less may be used.

When a nanofiber non-woven fabric is used, unlike a charged non-woven fabric filter, the filtering performance does not change even if a chemical solution is adhered to the surface. Therefore, the second filter 5 as in the first embodiment may not be particularly provided, but two filters such as the second filter may be adopted as in the first embodiment.

3. 3. Third Embodiment FIG. 4A shows an air conditioner 50 in which a filter 1 is installed in both an intake port and an exhaust port. The air conditioner 50 has a housing 51 having a pair of shafts 57 on the side wall and a support 53 for supporting the shafts. The support base 53 can be moved on the installation surface by the roller 54. As will be described later, the main body 51 is rotatably supported in the direction of the arrow 55 about the shaft 57.

Frames 60 with filters are attached to the front and rear surfaces of the housing 51. As shown in FIG. 4B, the frame 60 with a filter is fitted in the groove 55 of the main body 51 and can slide in the direction of the arrow 67.

The frame 60 with a filter will be described with reference to FIG. 5A. The frame 60 with a filter is composed of a filter 1 and a frame 62. The filter 1 is sandwiched between a pair of frames 62a and 62b and fixed in a sheet shape. The frames 62a and 62b are fixed by the clasps 64 at six places.

The motor and fan inside the housing 51 will be described with reference to FIG. 5B. The motor 73 is fixed to the inner wall of the housing 51 by an X-shaped arm 75. A fan 71 is attached to the motor 73. In this embodiment, the fan has a blade diameter of 600 mm, the number of blades is 3, and the power consumption of the motor 73 is 320 W.

However, the present invention is not limited to this, and for example, the wing diameter may be 500 to 600 mm, the number of sheets may be 3 to 5, and the power consumption may be 250 to 320 W.

When the motor 73 rotates, as shown in FIG. 5B, air is taken in from the suction port 77 and discharged from the discharge port 78.

As for the direction of the filter 1 in the frame with filter 60, the suction port 77 side is inserted so that the second filter 5 is located on the outside (opposite side to the fan) as in the first embodiment. On the other hand, the exhaust port 78 side is inserted so that the second filter 5 is located inside (fan side). In each of the filters, as in the first embodiment, the drug layer 7 is formed on the surface of the second filter 5, and with use, the drug is periodically applied from above the particles to form an additional drug layer. ..

In the air conditioner 50, since the filter 1 is provided on both the suction port 77 and the discharge port 78, antibacterial and inactivation can be performed with twice the efficiency. Further, a high speed wind is supplied to the filter 1 on the exhaust port 78 side by a fan. The first filter 3 of the filter 1 also captures particles by Coulomb force and Brownian motion. The higher the wind speed, the higher the capture rate of this Brownian motion. Therefore, the efficiency of capturing particles by the first filter 3 is improved as compared with the first embodiment.

Since the housing 51 is held by the shaft 57 on the support base 53, it can be rotated around the shaft 57 so that the discharge port 78 faces the ceiling from the state shown in FIG. 6A (see FIG. 6B). ). It also has a locking function to hold such a state (not shown). As a result, the air sucked from the floor direction can be antibacterial and inactivated, and the air can be released toward the ceiling.

The air conditioner 50 is suitable for a place where it is difficult to install an air conditioner (air conditioner), for example, a shelter in the event of a natural disaster. In addition, it can be expected that the air cleaning time will be shortened.

Further, as shown in FIG. 6C, it can be configured as an air conditioner 80 in which the number of fans is increased to two. Also, the number of such fans is not limited.

4. Other Embodiments In this embodiment, the filter 1 is configured by the first filter 3 and the second filter 5, but the front and back sides of the first filter 3 may be sandwiched by the second filter 5. As a result, there is no front and back, so there is no mistake in mounting. Further, a catalytic effect can be expected from both sides of the first filter 3.

In the first embodiment, the dry short fiber non-woven fabric produced by the thermal bond method is adopted as the first filter 3, but other than this may be used. Further, as the second filter 5, a dry short fiber non-woven fabric produced by the chemical bond method is adopted, but other than this may be used.

In the first embodiment, a charged non-woven fabric capable of collecting about 65 to 69% of particles of 0.3 μm and having a wind speed of 1 m / s and a pressure loss of 30 pa or less was adopted. It may be a filter. Further, split fiber may be used instead of the non-woven fabric.

Further, the collection efficiency of the first filter 3 is about 65 to 69% of particles of 0.3 μm, and a charged non-woven fabric having a wind speed of 1 m / s and a pressure loss of 30 pa or less is used. This is because the pressure loss increases when the collection efficiency is further increased, and if the filter has a high collection efficiency and a low pressure loss, it may be adopted. On the contrary, if the virus is constantly circulated and the virus is not brought into the room so much, the collection efficiency of the filter 1 may be about 50% under the same conditions. That is, the collection efficiency of the filter 1 may be 50% or more under the same conditions. This is because collection efficiency is a matter of time required for antibacterial and antiviral treatment and how much antibacterial and antiviral treatment is required. Further, the collection efficiency of the filter 1 may be 30% or more.

In the above embodiment, a charged nonwoven fabric having a pressure loss of 30 pa or less is adopted, but the present invention is not limited to this, and the pressure loss may be 20 to 40 pa, further may be a pressure loss of 40 to 50 pa, and further is 50 pa. It may be up to 60 pa. This is because if the pressure loss is large, the motor of the air conditioner to be attached is heavily burdened. It is preferable that the initial pressure loss is low, but if the initial pressure loss is about 30 pa, there is no particular adverse effect, and if it is about 60 pa, there is no practical problem for the motor of a general air conditioner.

In the present embodiment, the filter 1 is attached to the outside of the air conditioner. Since the filter 1 has a pressure loss of 20 pa or more and 60 pa or less, the filter 1 is pulled inward by a negative pressure when the air conditioner is operating. Therefore, even if there is a gap of about 100 μm between the outer surface of the air conditioner and the double-sided tape, there is an effect that this is closed.

In the present embodiment, the first filter is a single layer, but this may be composed of a plurality of layers. Specifically, two filters having a lower air pressure loss and a lower collection rate than the first filter may be prepared, and a filter having these layers may be adopted. As a result, a filter having a higher collection rate can be obtained without impairing the pressure loss.

In the present embodiment, the vinylon non-woven fabric is used as the second filter, but other materials may be used as long as the non-woven fabric or split fiber is made of hydrophilic fiber.

In the present embodiment, the filter 1 is attached to the suction port of the air conditioner with double-sided tape, but other attachment methods may be used.

Further, in the present embodiment, the case where the room is inside a room such as a building has been described as an example, but it may be a closed space in which a plurality of people can exist, such as inside a car, inside an aircraft, or inside a ship. In addition, the space is not always closed, and outside air or people may come and go in a certain period of time.

Further, in the present embodiment, the case where the sterilization / antibacterial spray "bactericidal" is adopted has been described, but if only antiviral treatment is used, only a drug that inactivates a virus such as influenza may be used. Further, only titanium oxide, which is a photocatalyst material, may be used.

Further, in the present embodiment, a drug that inactivates the virus is adopted, but the virus may be captured by a filter without such a drug (chargeable first filter and second filter).

In this case, it can be grasped as the following invention.

A filter that covers the intake port of an air conditioner, the first filter with an initial pressure loss of 20 pa or more and 60 pa or less, and a particle collection efficiency of 0.3 μm of 30% or more at a wind speed of 1 m / s, and the intake of the first filter. A virus removal filter located on the opposite side of the mouth side and having a second filter, which is a non-woven fabric or split fiber composed of fibers made of a hydrophilic material and collects dust of 1 to 10 μm. In this case, it may be further configured without the second filter.

In the above, the present invention has been described as a preferred embodiment, but it is not used for limitation but for explanation, and is attached without departing from the scope and spirit of the present invention. It can be changed within the scope of the claim.

Claims (17)

A filter with an initial pressure loss of 20 pa or more and 60 pa or less and a particle collection efficiency of 0.3 μm of 30% or more is installed at the intake port of the air conditioner at a wind speed of 1 m / s, and is on the opposite side of the filter from the intake port side. An anti-virus treatment method in which a virus inactivating agent is sprayed on the surface of the air, air is taken in from the air intake port, and anti-virus treatment is performed. In the antiviral processing method of claim 1,
Performing the treatment of spraying the virus-inactivating agent onto the solid particles collected on the surface of the filter.
An antiviral treatment method characterized by. In the antiviral treatment method of claim 1 or 2.
The filter is
The first filter with a collection efficiency of 0.3 μm particles of 30% or more,
It is located on the opposite side of the second filter from the intake port side, and has a second filter that collects dust of 1 to 10 μm.
The virus inactivating agent is sprayed onto the second filter.
An antiviral treatment method characterized by. In the antiviral processing method of claim 3,
Having the second filter on the surface of the first filter opposite to the surface on which the second filter is provided.
An antiviral treatment method characterized by. In the antiviral processing method of claim 1,
The first filter is a charged non-woven fabric or split fiber filter.
The second filter has a liquid agent arrival blocking function that prevents the sprayed virus inactivating agent from reaching the first filter.
An antiviral treatment method characterized by. In the antiviral processing method of claim 1,
The first filter has a collection efficiency of 0.3 μm particles of 30% or more.
An antiviral treatment method characterized by. In the antiviral treatment method of claim 6,
The first filter has a collection efficiency of 0.3 μm particles of 60 to 69%.
An antiviral treatment method characterized by. In the antiviral treatment method according to any one of claims 1 to 7.
The air-conditioning equipment has an intake port and an exhaust port, and is a housing containing a blower. The intake port and the exhaust port are provided with the filter.
An antiviral treatment method characterized by. In the antiviral treatment method of claim 8,
The housing is rotatable so that the intake and exhaust ports are located horizontally.
An antiviral treatment method characterized by. It is a filter installed at the intake port of air conditioning equipment.
The first filter with an initial pressure loss of 20 pa or more and 60 pa or less and a particle collection efficiency of 0.3 μm of 30% or more at a wind speed of 1 m / s.
A second filter, which is located on the side opposite to the intake port side of the first filter and is a non-woven fabric or split fiber composed of fibers made of a hydrophilic material and collects dust of 1 to 10 μm.
Have and
The virus inactivating agent is sprayed on the second filter.
A virus inactivation filter characterized by. Housing with intake and exhaust ports,
The fan built into the housing,
The suction port side filter provided in the suction port,
The exhaust port side filter provided in the exhaust port,
It is an air conditioner equipped with
The suction port side filter and the exhaust port side filter are filters having an initial pressure loss of 20 pa or more and 60 pa or less and a particle collection efficiency of 0.3 μm of 30% or more at a wind speed of 1 m / s.
An air conditioner featuring. In the air conditioner of claim 11,
The suction port side filter and the exhaust port side filter are
The first filter with an initial pressure loss of 20 pa or more and 60 pa or less and a particle collection efficiency of 0.3 μm of 30% or more at a wind speed of 1 m / s.
A second filter, which is located on the side opposite to the intake port side of the first filter and is a non-woven fabric or split fiber composed of fibers made of a hydrophilic material and collects dust of 1 to 10 μm.
To have
An air conditioner featuring. The air conditioner according to claim 12.
The virus inactivating agent is sprayed on the second filter.
An air conditioner featuring. The method of using the air conditioner according to claim 13.
Performing the treatment of spraying the virus-inactivating agent onto the solid particles collected on the surface of the second filter.
How to use the air conditioner. A method for manufacturing an inactivated virus capture filter in which an inactivated virus is captured on the filter surface.
A filter with an initial pressure loss of 20 pa or more and 60 pa or less and a particle collection efficiency of 0.3 μm of 30% or more is installed at the intake port of the air conditioning equipment that regulates the temperature of the indoor air at a wind speed of 1 m / s. The virus is sprayed on the surface of the filter, air is taken in from the air intake port, and the solid particles having the virus attached to the filter surface are captured, thereby capturing the inactivated virus.
A method for manufacturing an inactivated virus capture filter. A) An anti-virus that installs a filter at the intake port of the air-conditioning equipment, sprays a virus inactivating agent on the surface of the filter opposite to the intake port side, takes in air from the intake port, and performs antiviral treatment. It ’s a processing method,
B) In the filter, the following second filter is laminated in a sheet shape on the following first filter.
b1) Composed of charged non-woven fabric or charged split fiber fibers, with an initial pressure loss of 20 pa (N / m ² ) or more and 60 pa (N / m ² ) or less, 0.3 μm particles trapped at a wind speed of 1 m / s. First filter with a collection efficiency of 30% or more,
b2) The second filter, which is located on the opposite side of the first filter from the intake port side and collects dust of 1 to 10 μm, and the virus inactivating agent sprayed reaches the first filter. The second filter, which has the function of blocking the arrival of the liquid agent,
C) After collecting the solid particles on the surface of the second filter, the virus inactivating agent is sprayed on the collected fixed particles to perform anti-virus treatment on the surface of the collected solid particles. Anti-virus treatment of the solid particles further collected on the collected solid particles by
An antiviral treatment method characterized by. A) An antiviral treatment method using an air conditioner having the following a1) to a6).
a1) A housing with an intake port and an exhaust port,
a2) The fan built into the housing,
a3) The suction port side filter provided in the suction port,
a4) Exhaust port side filter provided in the exhaust port,
Equipped with
a5) In both the intake port side filter and the exhaust port side filter, the following second filters are laminated in a sheet shape on the following first filters.
a51) Composed of charged non-woven fabric or charged split fiber fibers, with a wind speed of 1 m / s in the form of a sheet, initial pressure loss of 20 pa (N / m ² ) or more and 60 pa (N / m ² ) or less, 0.3 First filter with a collection efficiency of μm particles of 30% or more,
a52) The second filter, which is located on the opposite side of the first filter from the intake port side and collects dust of 1 to 10 μm, and the virus inactivating agent sprayed reaches the first filter. The second filter, which has the function of blocking the arrival of the liquid agent,
a6) The second filter of the suction port side filter and the exhaust port side filter both have a liquid agent arrival blocking function of preventing the virus inactivating agent to be sprayed from reaching the first filter.
B) After collecting the solid particles on the surface of the second filter, the virus inactivating agent is sprayed on the collected fixed particles to perform anti-virus treatment on the surface of the collected solid particles. Anti-virus treatment of the solid particles further collected on the collected solid particles by
An antiviral treatment method characterized by.

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