JP5392216B2 - Air cleaning method and apparatus - Google Patents

Description

The present invention relates to an air cleaning method and apparatus for purifying indoor air contaminated with dust or bacteria.

  Currently, indoor air pollution in homes, hospitals, buildings, etc. is only progressing. Contaminants include dust, mold, mites, pollen, influenza virus, tuberculosis, nosocomial infection, MRSA (methicillin-resistant Staphylococcus aureus), Legionella, SARS (severe acute respiratory infection syndrome) virus, etc. There are various types of pathogens such as coronavirus, food poisoning norovirus, campylobacter, O-157. Contaminants such as these various types of airborne bacteria and airborne bacteria float in indoor spaces and adhere to indoor wall surfaces, ceilings, furniture, etc., thereby deteriorating the indoor environment and having a huge adverse effect on the human body. ing.

  As an air cleaning device for purifying indoor air contaminated with the pollutants (hereinafter referred to as “contaminated air”), a front view gate is provided on the front side of a fan disposed on the back side for sucking air outside the apparatus. A pair of substantially rectangular plate-like filters that are fitted in the holding frame of the mold and arranged in parallel in the front-rear direction at a predetermined interval are arranged to form a sterilization space between them, and the sterilizing liquid is pumped up by a pump and supplied The tube is led to the upper side of the frontal portal holding frame, and the sterilizing liquid is ejected downward from the upper side as a mist-like, shower-like or film-like cleaning liquid, and the inhaled contaminated air is brought into contact with the cleaning liquid. And sterilizing by passing it through (for example, see Patent Document 1).

JP 2007-229047 A

Since the length of the sterilization space in the depth direction of the sterilization space is short, the air cleaning device of Patent Document 1 has a short section in which contaminated air sucked by the fan on the back side can come into contact with the sterilization solution. It may not be possible.
Moreover, it may be difficult to disperse the sterilizing liquid sprayed downward from the upper side portion of the frontal portal holding frame portion over the entire width direction, in which case the efficiency of removing bacteria and the like is reduced.
Furthermore, because of the structure, the sterilizing solution penetrates into the filter before and after the sterilizing space, so it is necessary to increase the capacity of the fan on the back side, and the sterilizing solution is applied downward from the upper side of the front-view portal holding frame. Since it is necessary to provide a large number of nozzles for jetting, the structure tends to be complicated and the manufacturing cost increases.

Therefore, in view of the above-described situation, the present invention intends to provide an air cleaning method and apparatus that is highly efficient in removing bacteria from contaminated air, has a simple structure, and can suppress an increase in manufacturing cost. There is in point to do.

In order to solve the above problems, the air cleaning method according to the present invention pumps up and pressurizes a sterilizing liquid or water as a liquid contained in a container body, ejects it upward by a nozzle , and opens it downward. A cylindrical body that has an upper and lower opening and extends in the vertical direction is enclosed in the container body, and is surrounded by the reflector and the nozzle. The air that is pressed and rotates spirally around the vertical axis is brought into contact with the liquid that collides and scatters on the reflector, and the air that falls from the cylindrical body while falling into a foam and the scattered liquid The mixture was made to collide with the liquid reservoir in the container main body, penetrated through the liquid reservoir and collided with the bottom of the container main body, and the entire liquid reservoir was mixed and stirred spirally and mixed and stirred with the liquid. Air outside the cylindrical body Characterized by discharging the container body outer lead towards.

According to such a configuration, the inside of the vertically extending cylindrical body arranged so as to surround the reflector and the nozzle so as to be separated from the outside is a mixed space, and a jet flow is ejected from the nozzle. The liquid splashed by colliding with the bowl-shaped reflector opening downward and entering the mixing space is reflected by the inner surface of the cylindrical body and further scattered, and the liquid ejected from the nozzle is entirely within the mixing space. The air taken in from the air intake is blown into the cylindrical body while rotating spirally around the vertical axis by the rotation of the blower blades and comes into contact with the liquid. It falls rapidly while becoming a mixture and becoming foamy.
Such a foam-like mixture collides with the liquid contained in the lower part of the container body, penetrates the liquid reservoir and collides with the bottom of the container body, and the entire liquid reservoir also spirals around the vertical axis. The mixture is vigorously mixed and stirred, becomes foamy, expands and becomes bulky, as if the air is washed with liquid.
Therefore, the air taken in from the outside can be brought into contact with the liquid very efficiently.
Therefore, when the liquid is a sterilizing solution, it can efficiently remove contaminants such as dust, dust, mold, mites, pollen, viruses, bacteria, etc., and tobacco, formalin, etc. Can be deodorized.
Further, when the liquid is water, dust at a construction site or a factory can be efficiently removed.
Furthermore, when the air taken in from the air intake port is, for example, hot air, the hot air can be cooled by the splash of liquid that collides with the reflector and splashes in various directions, and by forced convection heat transfer by the hot air Since the liquid that has become a jet collides with the reflector to be heated from below, the hot air can be effectively cooled through the reflector by the collision jet cooling with high cooling efficiency. In any case, it is suitable for cooling hot air in a high-temperature work place or the like.

Here, it is preferable to remove the liquid in the middle of the flow path that guides the air mixed and stirred with the liquid to the upper outside of the cylindrical body and discharges it outside the container body.
According to such a configuration, since air mixed and stirred with the liquid is guided to the upper outside of the cylindrical body and discharged on the way to the outside of the container body, the liquid is discharged outside the container body. Since the amount of decrease can be reduced, the interval for replenishing the liquid can be lengthened.

In order to solve the above problems, an air purifying apparatus according to the present invention has a container main body containing a liquid that is a sterilizing liquid or water, a pump that pumps up and pressurizes the liquid, and a discharge port of the pump. A mounted nozzle, a bowl-shaped reflector that is provided above the nozzle and that reflects and reflects the liquid that has been jetted from the nozzle, and a reflector that opens downward, the reflector and the nozzle A cylindrical body that is disposed in the container body so as to surround and be spaced apart from the outside, and has an opening in the vertical direction and extends in the vertical direction, and air taken in from an air intake port provided above the reflector A blower that pressurizes and blows into the cylindrical body, splashes of the liquid that collide with the reflector on the inside of the cylindrical body, and air that spirally rotates around the vertical axis blown from the blower Mixing empty And then, a flow path directing to wrap mixture droplets and the air in the liquid which has fallen while becoming foamy downwardly outwardly above the cylindrical body via the mixing space, on the downstream side of the flow path An air outlet provided, and the mixture that has fallen from the mixing space in the cylindrical body collides with a liquid reservoir in the container body, and passes through the liquid reservoir and collides with the bottom of the container body. The whole liquid reservoir is mixed and stirred spirally .

According to such a configuration, the inside of the vertically extending cylindrical body arranged so as to surround the reflector and the nozzle so as to be separated from the outside is a mixed space, and a jet flow is ejected from the nozzle. The liquid splashed by colliding with the bowl-shaped reflector opening downward and entering the mixing space is reflected by the inner surface of the cylindrical body and further scattered, and the liquid ejected from the nozzle is entirely within the mixing space. The air taken in from the air intake is blown into the cylindrical body while rotating spirally around the vertical axis by the rotation of the blower blades and comes into contact with the liquid. It falls rapidly while becoming a mixture and becoming foamy.
Such a foam-like mixture collides with the liquid contained in the lower part of the container body, penetrates the liquid reservoir and collides with the bottom of the container body, and the entire liquid reservoir also spirals around the vertical axis. The mixture is vigorously mixed and stirred, becomes foamy, expands and becomes bulky, as if the air is washed with liquid.
Therefore, the air taken in from the outside can be brought into contact with the liquid very efficiently.
Therefore, when the liquid is a sterilizing solution, it can efficiently remove contaminants such as dust, dust, mold, mites, pollen, viruses, bacteria, etc., and tobacco, formalin, etc. Can be deodorized.
Further, when the liquid is water, dust at a construction site or a factory can be efficiently removed.

Furthermore, when the air taken in from the air intake port is, for example, hot air, the hot air can be cooled by the splash of liquid that collides with the reflector and splashes in various directions, and by forced convection heat transfer by the hot air Since the liquid that has become a jet collides with the reflector to be heated from below, the hot air can be effectively cooled through the reflector by the collision jet cooling with high cooling efficiency. In any case, it is suitable for cooling hot air in a high-temperature work place or the like.
Furthermore, in comparison with the configuration in which a large number of nozzles are provided on the upper side of the frontal portal type holding frame as in Patent Document 1, the capacity of the pump is reduced because the number of nozzles is small and the piping path is short. Since it can be kept relatively small and has a simple and compact configuration, an increase in manufacturing cost can be suppressed.
In addition, a flow path that guides the mixture of liquid droplets and air that has flowed downward through the mixing space so as to be folded back outward and upward of the cylindrical body is provided, and an air discharge port is provided on the downstream side, that is, the upper part of the flow path. Since it is provided, there is a certain liquid removal effect in which splashes of a relatively heavy liquid are removed from the mixture until the flow path is folded and exits from the upper air discharge port.

Here, it is preferable that a derivative that receives and reflects the liquid reflected and collided with the reflector is provided in the cylindrical body below the reflector.
According to such a configuration, a part of the liquid that collides with the upper reflector and scatters further collides with the lower derivative, is guided outward, and diffuses, and the splashes of liquid thus diffused are cylinders. Since the density of the liquid droplets in the mixing space is increased because it is guided to the mixing space inside the shape body, the air taken from the outside can be more efficiently brought into contact with the liquid.

In addition, it is preferable that a liquid removing means is provided in the middle of the flow path that guides the mixture so as to be folded back outwardly from the cylindrical body.
According to such a configuration, the liquid droplets and the air mixture flowing downward through the mixing space are discharged from the air discharge port after being removed by the liquid removal means in the middle of the flow path. Since the amount of liquid decrease can be reduced, the interval for replenishing the liquid can be lengthened.

As described above, according to the air cleaning method and apparatus according to the present invention, the inside of the cylindrical body is a mixed space, and in this mixed space, the liquid splashes and the blower that are ejected from the nozzle and reflected by the reflector are scattered. Since it can rotate in a spiral around the vertical axis from the outside and is brought into contact with the air that is blown into the cylindrical body, it is very efficient and simple to remove bacteria from contaminated air. And since it is a compact structure, there exists a remarkable effect that the increase in manufacturing cost can also be suppressed.

It is a perspective view which shows the air purifying apparatus which concerns on embodiment of this invention. It is a partial longitudinal cross-sectional view similarly.

FIG. 1 shows an embodiment in which an air cleaner is used indoors, for example, for home use. The power plug 16 attached to the tip of the power cord 15 is inserted into an outlet (not shown) and the switch 17 is turned on. Then, the contaminated air PA is taken in from the air intakes 8, 8,... Formed in the upper part of the side surface and brought into contact with the sterilizing liquid or water, and is discharged as clean air CA from the air outlets 10, 10,.
As shown in FIG.1 and FIG.2, the container main body 2 of the air purifying apparatus 1 is the substantially columnar appearance, and accommodates the liquid A which is a disinfection liquid or water, and louvers 11, 11, Are provided, and a liquid storage container 2A in which air discharge ports 10, 10,..., Which are elongated holes extending in the circumferential direction, are formed below the louvers 11, 11,. The blower assembly 2B, which is attached and has air intakes 8, 8,... That are a large number of round holes on the side surface, is connected by a connecting member 2C.
Here, since louvers 11, 11,... Inclined downward are provided above the air discharge ports 10, 10,..., Clean air CA is discharged downward from the air discharge ports 10, 10,. Inhalation of clean air CA from the air intakes 8, 8,.

In the center of the upper surface of the bottom plate of the liquid container 2A, a pump 3 that pumps up and pressurizes the liquid A, which is a sterilizing liquid or water, is adsorbed and fixed by suction cups 3A, 3A,. Since the nozzle 5 directed to the nozzle 5 is mounted directly or via the pipe 4 extending in the vertical direction, the liquid A that has been jetted upward from the nozzle 5 is ejected.
Further, a bowl-like reflector 6 that is opened downward is collided with the liquid A ejected upward from the nozzle 5, and the reflector 6 collides with the reflector 6 below the reflector 6. A bowl-shaped derivative 7 that opens downward and receives the reflected liquid A and guides it outward is disposed.
Furthermore, the cylindrical body 12 that surrounds the upper reflector 6 and the lower derivative 7 and the nozzle 5 and is spaced outwardly and has an upper and lower opening and extends in the vertical direction is the liquid container 2A or the connecting member. The contaminated air PA attached to 2C and disposed in the container body 2 and pressurized by the blower 9 is guided to the inside of the cylindrical body 12.

Here, in the configuration of FIG. 2, a configuration is adopted in which the derivative 7 is attached to the upper end of the pipe 4 and the reflector 6 is fixed above the derivative 7 using bar-like support members 14, 14,. However, the reflector 6 may be supported by the cylindrical body 12 using, for example, a bar-shaped support member extending in the horizontal direction.
Further, the reflector 6 and the derivative 7 below it are not limited to the bowl-like shape opening downward, but may be a hemispherical shape, a partial spherical shape, a parabolic shape, an umbrella shape, a flat plate shape, or the like. Alternatively, it may be formed in three dimensions instead of a plate.
Furthermore, the derivative 7 is not an essential component and may be only the reflector 6.

With the configuration as described above, the inside of the cylindrical body 12 collides with the reflector 6 and the derivative 7 and scatters outward to mix the splashes of the liquid A and the contaminated air PA blown from the blower 9. B is a flow path C that guides the mixture MA of the liquid A, which has flowed downward through the mixing space B, and the mixture MA of the contaminated air PA so as to be folded back outward and upward of the cylindrical body 12. It is formed by the outside and the inside of the container body 2.
In addition, upper and lower drainage meshes 13A and 13B, which are liquid removal means, are disposed in the middle of the flow path C that guides the mixture MA so as to be folded back outwardly from the cylindrical body 12, that is, outside the cylindrical body 12. .
The liquid removal means may be a filter or impeller, a cyclone centrifuge, or the like instead of the draining wire net.

According to the air cleaning device 1 having the above-described configuration, the inside of the vertically extending cylindrical body 12 that surrounds the reflector 6 and the nozzle 5 and is disposed so as to be spaced outward is the mixing space B. Then, the liquid A, which has been jetted from the nozzle 5, is scattered by colliding with the reflector 6, and the liquid A that has entered the mixing space B is reflected from the inner surface of the cylindrical body 12 and further scattered. The liquid A ejected from the air flows down like a waterfall in the entire mixing space B, and the contaminated air PA taken from the air intakes 8, 8,... Spirals around the vertical axis by the rotation of the blades of the blower 9. ) And the liquid 12 is strongly blown into contact with the liquid A, and becomes a mixture MA of the contaminated air PA and the liquid B, and drops rapidly while forming a foam.
Such a foam-like mixture MA collides with the liquid A accommodated in the lower part of the container body 2, penetrates the liquid reservoir and collides with the bottom of the container body 2, and the entire liquid reservoir also rotates around the vertical axis. Then, the mixture is stirred and stirred in a spiral shape (spiral shape), becomes foamy, expands and becomes bulky, and the contaminated air PA is washed with the liquid B.
Therefore, the contaminated air PA taken from the outside can be brought into contact with the liquid A very efficiently.
In addition, although the polluted air PA can be blown downward by rotating the blades of the blower 9 around the vertical axis, it is further spiraled by arranging a spiral grill or the like below the blades. The rotational force of the shape can be increased.
Therefore, when the liquid A is a sterilizing solution, it can efficiently remove contaminants such as dust, dust, mold, mites, and pollen, as well as viruses and bacteria, and tobacco and formalin. It can deodorize such bad odors.
Moreover, when the liquid A is water, dust at a construction site or a factory can be efficiently removed.

Furthermore, when the contaminated air PA taken in from the air inlets 8, 8,... Is hot air, for example, the hot air can be cooled by the splashes of the liquid A that collides with the reflector 6 and is scattered in various directions. At the same time, since the liquid A that has become a jet collides with the reflector 6 heated by forced convection heat transfer by hot air from below, the hot air is effectively cooled through the reflector 6 by the collision jet cooling with high cooling efficiency. Therefore, in the case where the liquid A is either a sterilizing liquid or water, it is suitable for cooling hot air in a high-temperature work place or the like.
In consideration of such cooling characteristics, the reflector 6 is preferably formed of a metal having a high thermal conductivity such as copper or aluminum.
Furthermore, compared to a configuration in which a large number of nozzles are provided on the upper side of the front-view portal holding frame as in Patent Document 1, the number of nozzles 5 is small and the piping path is short. Since the capacity can be kept relatively small, and the configuration is simple and compact, an increase in manufacturing cost can be suppressed.
In addition, a flow path C that guides the mixture MA that has flowed downward through the mixing space B so as to be folded back to the upper outside of the cylindrical body 12 is provided. 10..., The droplets of the relatively heavy liquid A are removed from the mixture MA until the flow path C is folded and exits from the upper air discharge ports 10, 10. There is a certain liquid removal effect.

Furthermore, by providing the derivative 7 that receives the liquid A reflected by the collision with the reflector 6 and guides it to the outside, a part of the liquid that collides with the upper reflector 6 and scatters further becomes the derivative 7 below. Since the collision of the liquid A that has been collided and guided outward and diffused in this way is guided to the mixing space B inside the cylindrical body 12, the density of the liquid splash in the mixing space B increases. The contaminated air taken from the outside can be brought into contact with the liquid A more efficiently.
Furthermore, drainage wire nets 13A and 13B, which are liquid removal means, are provided in the middle of the flow path C that guides the mixture MA so as to be folded back to the upper outside of the cylindrical body 12, so that it flows downward through the mixing space B. Since the mixture MA is discharged from the air discharge ports 10, 10,... After being drained by the draining wire meshes 13A, 13B in the middle of the flow path C, the amount of decrease in the liquid A can be reduced. The interval for replenishing the liquid A can be lengthened.

In the above description, the case where the outer appearance of the container body 2 of the air cleaning device 1 is substantially cylindrical has been shown, but the outer appearance of the container body 2 is not limited to a substantially cylindrical shape, and other shapes such as a polygonal column shape. You may make it the shape.
Further, the shapes of the air intake ports 8, 8,... And the air exhaust ports 10, 10,... Are not limited to the present embodiment, and holes of appropriate sizes such as round holes, slits, or long holes are provided. It can be employed as an air inlet and an air outlet.
Further, the air intake may be formed on the top plate on the upper surface of the blower assembly 2B (container body 2), or may be used in combination with the air intakes 8, 8,... On the side surface of the blower assembly 2B.
Furthermore, the connecting member 2C between the liquid storage container 2A and the blower assembly 2B may be eliminated, and the range and the divided structure in which the container main body 2 is divided vertically are not limited to the present embodiment. Absent.

A liquid (disinfectant or water)
B Mixing space C Flow path CA leading back upwards Clean air MA Mixture of liquid droplets and air PA Contaminated air 1 Air cleaning device 2 Container body 2A Liquid container 2B Blower assembly 2C Connecting member 3 Pump 3A Suction cup 4 Piping 5 Nozzle 6 Reflector 7 Derivative 8 Air intake 9 Air blower 10 Air outlet 11 Louver 12 Cylindrical bodies 13A, 13B Wire net (liquid removal means)
14 Support member 15 Power cord 16 Power plug 17 Switch

Claims (5)

Pumping and pressurizing a liquid, which is a sterilizing liquid or water, contained in the container body, ejecting it upward by a nozzle, and colliding with a bowl-shaped reflector opening downward ,
A cylindrical body that surrounds the reflector and the nozzle and is spaced apart from the outside and has an opening in the vertical direction and extends in the vertical direction is introduced into the container body and pressurized by a blower to rotate around the vertical axis The spirally rotating air and the liquid that collides with the reflector and splashes,
The mixture of the air and the scattered liquid falling from the cylindrical body in the form of bubbles is made to collide with the liquid reservoir in the container body, and penetrates the liquid reservoir and collides with the bottom of the container body. , Mix and stir the entire liquid reservoir spirally ,
An air cleaning method, wherein the air mixed and stirred with the liquid is guided to the upper outside of the cylindrical body and discharged out of the container body.
The air cleaning method according to claim 1, wherein the air is mixed and stirred with the liquid, and the liquid is removed in the middle of a flow path for guiding the air to the upper outside of the cylindrical body and discharging it out of the container body. A container body containing a liquid which is a sterilizing liquid or water;
A pump for pumping and pressurizing the liquid;
A nozzle mounted upward at the discharge port of the pump;
A bowl-shaped reflector that opens downward and reflects the liquid that has been jetted from the nozzle, which is provided above the nozzle, and reflects the liquid;
A cylindrical body that is disposed in the container body so as to surround the reflector and the nozzle so as to be spaced outwardly, and has an opening in the vertical direction and extends in the vertical direction;
A blower that is provided above the reflector and pressurizes air taken from an air intake and blows it into the cylindrical body;
The inside of the cylindrical body is a mixing space that mixes the splash of the liquid reflected by colliding with the reflector and the air that rotates spirally around the vertical axis blown from the blower, and passes through the mixing space and passes downward. A flow path that guides the mixture of the liquid droplets and the air that has fallen while being in the form of a foam to fold back outwardly from the cylindrical body,
An air outlet provided on the downstream side of the flow path,
The mixture dropped from the mixing space in the cylindrical body collides with a liquid reservoir in the container body, penetrates the liquid reservoir and collides with the bottom of the container body, and the entire liquid reservoir is spiraled. An air purifier characterized by mixing and stirring.
The air purifier according to claim 3 , wherein a derivative that receives the liquid reflected by the collision with the reflector and guides the liquid outward is provided in the cylindrical body below the reflector. The air purifier according to claim 3, wherein a liquid removal means is provided in the middle of the flow path for guiding the mixture so as to be folded back outwardly from the cylindrical body.

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