KR102590766B1 - Air quality improvenent module for cluster facility - Google Patents

Abstract

The present invention relates to an air quality improvement module for community facilities, comprising: a housing connected to the air supply side of an air handler (AHU) with an air passage; It includes first and second filters, and a plasma generator located between the first and second filters to fill the first and second filters with positive charges, and removes harmful substances in the air passing through the air passage of the housing. Plasma fusion filter; and blowing means for forming an airflow in the air passage behind the plasma fusion filter.

Description

Air quality improvement module for cluster facilities {AIR QUALITY IMPROVENENT MODULE FOR CLUSTER FACILITY}

The present invention relates to an air quality improvement module for group facilities to maintain clean indoor air quality in various group facilities where a large number of people or livestock are grouped, such as educational facilities or livestock farms.

Since the interior of various buildings is closed, continuous air quality management is necessary to maintain a comfortable indoor environment. In particular, indoor environments where large numbers of people or livestock are crowded, such as educational facilities, offices, or livestock farms, are prone to exposure to biological hazards or harmful substances such as viruses, bacteria, and mold. The more exposed you are to harmful substances, the more susceptible you are to disease infection, and due to the nature of group facilities, there is a high risk of outbreaks of epidemic diseases in which one individual becomes ill and spreads the disease to other individuals.

Accordingly, in order to maintain the cleanliness of indoor air, it is common for buildings to be equipped with an air handling unit (AHU: air handling unit: hereinafter abbreviated as 'air conditioner') that ventilates indoor air with fresh air from outside. The air conditioner contains a filter to remove foreign substances such as dust contained in the incoming outdoor air and the circulated indoor air. However, in the case of biological hazardous substances, it is difficult to remove them with a physical filter, so there is no freedom from the risk of disease infection.

Meanwhile, interest in health is increasing day by day due to climate change and environmental deterioration due to industrialization. In particular, interest in various skin diseases such as atopy and airborne diseases such as asthma is increasing, and recently, as issues such as fine dust and COVID-19 have arisen, interest in improving indoor air quality is increasing. Accordingly, demand for products related to improving indoor air quality, such as air purifiers, chemical deodorizers, and disinfectants, is increasing significantly.

However, not only are chemical products such as deodorants and disinfectants sometimes detected as harmful and persistent, but most of them are used to remove bad odors, so the overall air quality improvement effect is not very significant. In addition, in the case of products that use physical filters, such as air purifiers, the scope of application is local because the processing capacity varies depending on the size of the place where it is used, and manual maintenance such as dust cleaning and filter replacement is required after installation. There is a problem that requires

Korean Patent Publication No. 10-2109532 (announced on May 12, 2020) Korean Patent Publication No. 10-2241326 (announced on April 19, 2021)

The present invention was created in consideration of the above-mentioned problems, and can significantly improve indoor air quality by reliably removing various harmful substances (fine dust, bacteria, mold, viruses, etc.) in the air supplied indoors of community facilities. The solution is to provide air quality improvement modules for cluster facilities.

Another problem to be solved by the present invention is to easily apply the air conditioner already installed in the community facility to provide clean air by improving the purification and sterilization ability of the air conditioner, thereby creating a very safe and comfortable indoor atmosphere. It provides improvement modules.

Another problem to be solved by the present invention is to provide an air quality improvement module for community facilities that can minimize the risk of disease infection through the reliable killing of biological hazardous substances contained in the air.

In order to achieve these problems, the air quality improvement device for community facilities according to the present invention includes a housing connected to the air supply side of an air conditioner (AHU) with an air passage; It includes first and second filters, and a plasma generator located between the first and second filters to fill the first and second filters with positive charges, and removes harmful substances in the air passing through the air passage of the housing. Plasma fusion filter; and a blowing means for forming an airflow in the air passage behind the plasma fusion filter.

According to one embodiment of the present invention, a shutter for controlling the inflow of air into the air passage in front of the plasma fusion filter may be further included. Accordingly, ozone production can be suppressed by lowering the oxygen concentration by blocking air inflow by the shutter when the plasma generator is operating.

Here, according to one embodiment of the present invention, it may further include a valve means that allows air to flow in only one direction between the plasma fusion filter and the blowing means. In this case, a weak vacuum can be formed in the installation space of the plasma fusion filter located between the shutter and the valve means, thereby minimizing ozone generated by the operation of the plasma generator.

The present invention with this configuration is dually arranged so that the air supplied from the air conditioner to the room can selectively pass through and operate alternately to ensure uninterrupted and smooth air flow.

According to one embodiment of the present invention, the valve means includes: a body having a plurality of air holes; A plurality of elastic membranes on one side of the body are biased in the opposite direction of the air flow to shield each air hole; and a seal material that maintains airtightness between the body and the elastic membrane.

According to one embodiment of the present invention, an ozone filter for removing ozone generated when the plasma generator operates may be further included. In this case, the ozone concentration of the air supplied indoors can be further lowered, thereby reliably preventing damage that may be caused by ozone.

According to one embodiment of the present invention, it further includes an ultraviolet lamp that irradiates UVC to the air that has passed through the plasma fusion filter, so that the air from which harmful substances have been initially removed in the plasma fusion filter can be purified again by ultraviolet rays to remove harmful substances. It can be more effective in killing and removing substances.

At this time, it may be desirable for the air that has passed through the plasma filter unit to be guided to the ultraviolet lamp by an air guide.

According to one embodiment of the present invention, the first and second filters may be made of a material that is easy to convert to a positive charge by plasma, for example, polyethylene terephthalate resin (PET) or nylon.

According to one embodiment of the present invention, it further includes an ozone sensor that measures the ozone concentration of the air supplied into the room by the blowing means and controls the operation of the plasma generator according to the measured ozone concentration, so that the amount of ozone generated is appropriately adjusted. You can control it.

According to the air quality improvement module for community facilities according to the present invention, various harmful substances in the air supplied indoors can be reliably removed by the positive charge of the plasma fusion filter, thereby greatly improving the indoor air quality in community facilities. there is.

In particular, biological hazardous substances such as mold and bacteria captured in the filter can be reliably killed by treating them with plasma for a long period of time, thereby minimizing the risk of disease infection in community facilities.

In addition, as a module, it can be easily applied to air conditioners already installed in various community facilities, and as a result, the indoor atmosphere of community facilities can be made very safe and comfortable by supplying clean air by improving the purification and sterilizing power of the air conditioner. let it be

1 is a perspective view schematically showing an air quality improvement module in a community facility according to a first embodiment of the present invention;
Figure 2 is a perspective view schematically showing an air quality improvement module in a community facility according to a second embodiment of the present invention;
Figure 3 is a cross-sectional view schematically showing the valve means of the cluster facility air quality improvement module according to the second embodiment of the present invention;
Figures 4 and 5 are conceptual diagrams schematically showing the operating state of the cluster facility air quality improvement module according to the second embodiment of the present invention;
Figure 6 is a block diagram showing an application example of the air quality improvement module for group facilities according to the second embodiment of the present invention;
Figures 7 (a) and (b) are schematic diagrams schematically showing an example in which an air quality improvement module according to an embodiment of the present invention is applied to a community facility.

Specific features and other advantages of the cluster facility air quality improvement module of the present invention, and methods for achieving them, will become clearer through the description of the preferred embodiment below with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the air quality improvement module for community facilities according to embodiments of the present invention will be described in detail with reference to the drawings.

In Figure 1, the first embodiment of the cluster facility air quality improvement module 1 according to the present invention basically includes a housing 10 having an air passage 11 through which air passes inside, and an air tank of the housing 10. A plasma fusion filter (20) that removes various harmful substances contained in the air passing through the furnace (11) and a blower (30) located behind the plasma fusion filter (20) that forms an airflow in the air passage (11). It can be configured to include.

The housing 10 may be configured in the form of a duct with an appropriate length. An air inlet may be provided at one end of the housing 10, and an air outlet may be provided at the other end through which air from which harmful substances have been removed flows out toward the room. For example, the air inlet side of the housing 10 may be connected to the indoor air supply side of the air conditioner (A), and the air outlet side may be connected to the air supply path (not shown) of the air conditioner (A).

The plasma fusion filter 20 is located between the first and second filters 21 and 22 to collect harmful substances in the air and the first and second filters 21 and 22 to generate plasma. It may include a generator 23. Accordingly, positive charges generated in the plasma generator 23 are charged on the surfaces of the first and second filters 21 and 22, thereby enabling more reliable removal of harmful substances in the air passing through them.

In other words, fine dust and biologically harmful particles contained in the air generally have a negative (-) charge, so they can be more easily captured in the first and second filters (21) and (22) with a positive (+) charge. . In particular, in the case of biologically hazardous substances such as bacteria and mold, they can be reliably killed by greatly increasing the sterilization time due to positive charge.

Plasma removes nucleic acids from biological particles by causing them to lose their replication ability and cause inactivation. However, in some bacteria and fungi, a phenomenon known as photoreactivation occurs, in which damage to inactivated microorganisms is restored by irradiation of visible light. Therefore, in order to effectively kill biological hazardous substances, continuous plasma treatment over a certain period of time is required, and the plasma fusion filter 20 of the present invention collects positive charges because the first and second filters 21 and 22 are filled with a large amount of positive charges. Biologically hazardous particles can be treated with plasma for a long period of time, ensuring their death.

The first and second filters 21 and 22 may be provided alone, but it is better to include both and place them on both sides of the plasma generator 23. This is to ensure that each filter 21 and 22 can be filled with the positive charge generated by the plasma generator 23 as much as possible.

These first and second filters 21 and 22 are preferably made of a material that can be easily converted to positive charge through plasma. Specifically, it may be made of PET or nylon. In the case of PET and nylon, which are actively used as fibers, they are not only easy to apply as a filter, but are also stable as there is little change in their inherent elasticity and roughness when plasma is applied.

Both the first and second filters 21 and 22 may be made of PET or nylon, or one may be made of PET and the other may be made of nylon.

Meanwhile, the rear of the plasma fusion filter 20 is further provided with an auxiliary filter 24 such as a typical HEPA filter or nano filter, so that harmful substances not yet removed by the plasma fusion filter 20 are filtered out. A double filtration configuration may also be considered.

The blower 30 may be, for example, an air supply fan of the air conditioner (A). In other words, when the air quality improvement module (1) of the present invention is constructed together with the air conditioner (A), it is provided independently, but when this module (1) is additionally introduced to the air conditioner (A) already installed in the building, the air quality improvement module (1) of the present invention is installed independently. It can be replaced with the air supply fan of the air conditioner (A).

Meanwhile, ozone is inevitably generated in the process of filling the first and second filters 21 and 22 with plasma using the plasma generator 23 of the plasma fusion filter 20. Ozone is harmful to the human body, so it must be properly controlled. It must be removed. To this end, the air quality improvement module 1 of the present invention further includes an ozone filter 40 between the plasma fusion filter 10 and the blower 30 to remove ozone from the air purified by the plasma fusion filter 20. It can be removed again.

In addition, it is also good to include an ozone sensor 50 that measures the ozone concentration of the air supplied indoors by the blower 30 to appropriately control the operation of the plasma generator 23 according to the measured ozone concentration. In this case, the plasma generator 23 can be turned on/off within the duration of the plasma filled in the first and second filters 21 and 22.

In addition, the air quality improvement module 1 of the present invention may further include an ultraviolet lamp 60 that irradiates UVC between the plasma fusion filter 20 and the ozone filter 40. In this case, by sterilizing the air first purified in the plasma fusion filter 20 again with UVC, biological hazardous substances in the air can be more reliably removed, thereby making the indoor air of the community facility very safe and clean. It can be maintained as is.

At this time, it may be desirable to guide the air toward the ultraviolet lamp 60 by the air guide 70 so that the air that has passed through the plasma fusion filter 20 is definitely exposed to UVC irradiated from the ultraviolet lamp 60. there is. The air guide 70 may be configured in various forms. For example, as shown, there is a first air guide 71 that is open in the direction of air flow and surrounds the ultraviolet lamp 60 at intervals, and an ultraviolet lamp 60 at the rear of the first air guide 71. ) may be composed of two arc-shaped second air guides 72 that are spaced apart in a direction perpendicular to the arrangement direction and each guide air to the inside of the first air guide 71.

2 to 5 show a second embodiment of the cluster facility air quality improvement module 1 according to the present invention. In the second embodiment, in case of the same configuration as the first embodiment, the same member numbers are used and redundant description is omitted.

This embodiment, in addition to the basic configuration of the first embodiment described above, includes a shutter 80 disposed in front of the plasma fusion filter 20 to control the inflow of air into the air passage 11 of the housing 10. It is a composition that includes This is to reduce the amount of ozone generated during plasma processing of the first and second filters 21 and 22, and reduces the oxygen concentration required for ozone generation by blocking air from flowing into the housing 10 during plasma processing.

That is, as shown in FIG. 4, when the plasma generator 23 of the plasma fusion filter 20 operates to fill the first and second filters 21 and 22 with positive charge, the shutter 80 is opened. The blower 30 continues to be driven in a closed state. Then, while the inflow of air into the housing 10 is blocked, the discharge of air from the housing 10 continues, so that the inside of the housing 10 can be induced into a weak vacuum state. In this way, if the plasma generator 23 is operated while maintaining a weak vacuum inside the housing 10, ozone generation can be minimized because the oxygen concentration is low.

At this time, there is a risk that the air discharged due to the pressure difference due to the weak vacuum formed inside the housing 10 will reflow (backflow) into the housing 10. Therefore, it is further provided with a valve means (90) disposed between the plasma fusion filter (20) and the blower (30), which allows the air to flow in only one direction, thereby preventing the exhaust air from flowing back into the plasma processing space. good night.

The valve means 90 may have any shape as long as it can prevent backflow of air. For example, as shown in FIG. 3, the body 91 has a plurality of air holes 92 and the rear of the body 91 is biased in the opposite direction of the air flow direction to form a plurality of air holes 92, respectively. It may be configured to include a plurality of elastic films 93 for shielding. The elastic membrane 93 may be composed of various forms. For example, it may be composed of an elastic material such as urethane, and one end may be fixed to the body 91 to allow or block the flow of air through its own elasticity. At this time, the elasticity of the elastic film 93 is set to be smaller than the strength of the airflow formed by the blower 30. Additionally, in order to more reliably prevent backflow, a sealant 94 such as silicon may be provided between the body 91 and the elastic membrane 93.

Meanwhile, after the plasma treatment of the first and second filters 21 and 22 of the plasma fusion filter 20 is completed, the operation of the plasma generator 23 is stopped as shown in FIG. 5 and the shutter ( 80) is opened. Then, air can be introduced into the housing 10 again, and various harmful substances contained therein can be reliably removed as it passes through the plasma fusion filter 20, as in the first embodiment described above.

In the second embodiment of this configuration, the air inflow is controlled by the shutter 80 to suppress ozone generation, so the air flow of the air conditioner A may be intermittently interrupted. Therefore, in the case of the air quality improvement module 1 according to the second embodiment of the present invention, a dual structure can be adopted in which the modules are arranged in parallel and operate alternately, as shown in FIGS. 2 and 6. The dual structure may be a structure equipped with two air quality improvement modules (1) of the present invention, and the inside of one housing (10) is divided with a partition to place two air passages (11) side by side and then connect the two air passages (11) to each other. 11) may be a structure that includes necessary components such as a plasma fusion filter 20, a shutter 80, and a valve means 90. Accordingly, by using the plasma filling stages alternately, it is possible to maintain smooth, uninterrupted air flow in the air conditioner (A).

Meanwhile, although not separately shown, in the case of this second embodiment, like the first embodiment described above, the ozone filter 40, ozone sensor 50, ultraviolet lamp 60, and air guide 70 are included together. Not only can it be equipped, but in this case, more reliable removal of harmful substances is possible.

As shown in FIGS. 7(a) and (b), the air quality improvement module (1) of the present invention as described above is used in environments where a large number of people or livestock are clustered, such as in an educational facility (E) or a livestock barn (B). When applied to air conditioners (A) that are installed in community facilities and ventilate indoor air, indoor air quality can be maintained in a very safe, comfortable and clean state.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. do.

10: Housing 11: Air passage
20: Plasma fusion filter 21, 22: First and second filters
23: Plasma generator 30: Blower
40: Ozone filter 50: Ozone sensor
60: UV lamp 70: Air guide
71, 72: first and second air guides 80: shutter
90: valve means 91: body
92: air hole 93: elastic membrane
94: Seal material A: Air conditioner

Claims (11)

A housing connected to the air supply side of the air handler (AHU) with an air passage;
It includes first and second filters, and a plasma generator positioned between the first and second filters to fill the first and second filters with positive charges, and removes harmful substances in the air passing through the air passage of the housing. plasma fusion filter;
Blowing means for forming an airflow in the air passage behind the plasma fusion filter;
A shutter for controlling the inflow of air into the air passage in front of the plasma fusion filter; and
It includes a valve means that allows air to flow in only one direction between the plasma fusion filter and the blowing means,
The valve means is,
A body having multiple air holes;
a plurality of elastic films biased in a direction opposite to the air flow direction on one side of the body to shield each of the plurality of air holes; and
An air quality improvement module for a community facility comprising a sealant that maintains airtightness between the body and the elastic membrane.
delete delete delete In claim 1,
An air quality improvement module for a community facility, further comprising an ozone filter that removes ozone generated when the plasma generator operates.
In claim 5,
An air quality improvement module for a cluster facility, further comprising an ultraviolet lamp that irradiates UVC to the air that has passed through the plasma fusion filter.
In claim 6,
An air quality improvement module for a community facility, further comprising an air guide that guides the air that has passed through the plasma fusion filter to the ultraviolet lamp.
In claim 1,
The first and second filters are an air quality improvement module for community facilities, wherein the first and second filters are made of either polyethylene terephthalate resin (PET) or nylon.
In claim 1,
An ozone sensor that measures the ozone concentration of the air supplied indoors by the blowing means and controls the operation of the plasma generator according to the measured ozone concentration.
In claim 1 or claim 9,
An air quality improvement module for a community facility, characterized in that it is dually arranged and operates alternately so that the air supplied into the room from the air conditioner can selectively pass through.
In claim 10,
An air quality improvement module in a community facility, wherein the plasma generator operates when the shutter blocks air inflow, and the plasma generator stops when the shutter allows air inflow.

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