KR102347866B1 - Window type air cleaning system - Google Patents

Abstract

The present invention provides a frame mounted on a window frame, a window unit mounted on one side of the frame to secure sunlight transmission and visibility, and an air purification unit mounted on the other side of the frame to forcibly blow and purify outdoor air and supply it to the room. It consists of a ventilation function that introduces outdoor air into the room and a purification function of purifying outdoor air and supplying it to the room at the same time.

Description

Window type air purification system {WINDOW TYPE AIR CLEANING SYSTEM}

The present invention relates to a window type air purification system that is installed on a window frame to directly purify outdoor air and introduce it into the room, thereby simultaneously performing ventilation and air purification.

BACKGROUND ART In general, a ventilation device is a device for maintaining a comfortable state of indoor air by introducing outdoor air into a room and discharging indoor air to the outside.

Recently, as air pollution has become serious due to environmental pollution and the occurrence of yellow dust or fine dust has increased, it is impossible to keep indoor air clean only with simple ventilation that circulates outdoor air and indoor air.

Accordingly, the number of air purifiers installed indoors to purify indoor air is increasing. However, since the air purifier installed indoors purifies the already polluted indoor air, there is a problem in that it is difficult to always maintain the indoor environment in a comfortable state.

To solve this problem, a window-type air purification system is being developed that directly purifies outdoor air and supplies it to the room to perform both ventilation and air purification roles.

As disclosed in Korean Patent Application Laid-Open No. 10-2016-0104130 (September 05, 2016), the conventional fine dust blocking filter for windows includes a frame installed on a window frame, and a dustproof filter installed inside the frame to purify outdoor air It is composed of a filter sheet, and the dust-proof filter sheet is a fibrous sheet of nonwoven fabric or cotton material, and includes a porous adsorbent that blocks the inflow of fine dust and yellow dust.

However, the conventional filter for blocking fine dust for windows must have air permeability through which air can pass by natural ventilation. In this case, there is a problem in that the purification performance is deteriorated because it is not possible to filter the nano-sized fine dust with relatively small particles.

In addition, since the pores of the dust-proof filter sheet are clogged due to dust or the like when the use time elapses, the filter must be replaced frequently, which is inconvenient to use.

Republic of Korea Patent Publication No. 10-2016-0104130 (September 05, 2016)

Therefore, it is an object of the present invention to be installed on a window frame to directly purify outdoor air and supply it to the room to perform ventilation and air purification at the same time, and to improve the filtering performance of fine dust with small particles by using the nanofiber web as a filter. It is to provide a window type air purification system that can improve air purification performance.

Another object of the present invention is to provide a window type air purifying system that has a filter cleaning function to periodically clean the filter to maintain a constant filtering performance, and is convenient to use as the filter replacement cycle increases.

Another object of the present invention is to provide a window type air purification system capable of performing an air purification function while maintaining the characteristics of a window by purifying outdoor air and supplying it indoors while ensuring sunlight transmission and visibility.

According to one aspect of the present invention, a window type air purification system includes a frame mounted on a window frame, a window unit mounted on one side of the frame to secure sunlight transmission and visibility, and a window unit mounted on the other side of the frame to purify outdoor air. It includes an air purification unit that supplies the room.

The air purifying unit includes a housing fixed to the other side of the frame, an air inlet through which outdoor air is introduced, formed on the front surface, and an air supply port through which air is supplied to the room on the upper surface, and is mounted inside the housing to provide blowing pressure. It may include a blowing unit for generating air, and a filter unit mounted on the front surface of the housing to be exposed to the outside to filter the outdoor air.

It may further include a cleaning unit installed inside the housing to remove dust adhering to the surface of the filter unit, wherein the cleaning unit includes a spray nozzle installed inside the housing to spray air to the filter unit, and the blowing unit an air passage connected between and the injection nozzle to provide the blowing pressure generated by the blowing unit to the injection nozzle, an on/off valve installed in the air passage to open and close the air passage, and control the forward and reverse rotation of the blowing unit, It may include a control unit for controlling the on-off valve.

The filter unit may include a filter member having a plurality of pores formed by an electrospinning method, and a support member mounted on an edge of the filter member to support the filter member.

The filter member is made by mixing an electrospinning polymer material and a solvent in a certain ratio to make a spinning solution, spinning the spinning solution by electrospinning to make nanofibers, and accumulating the nanofibers to make a porous nanoweb having micropores can be formed with

The diameter of the nanofibers may be in the range of 0.5 to 3 μm, and the average pore size may be formed in a range of 0.2 to 10 μm.

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The porous nanoweb may have a thickness of 1 to 5 μm, and an air permeability of 10 to 20 CFM.

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As described above, in the present invention, an air purification system is installed on a window frame to directly purify outdoor air and supply it to the room to perform ventilation and air purification at the same time, and to filter fine dust with small particles using a nanofiber web as a filter It is possible to improve the performance, so that the air purification performance can be improved.

In addition, it has a filter cleaning function to periodically clean the filter to maintain a constant filtering performance, and it is convenient to use as the filter replacement cycle increases.

In addition, it is possible to perform an air purification function while maintaining the characteristics of the window by purifying outdoor air and supplying it indoors while ensuring sunlight transmission and visibility.

1 is a perspective view of a window type air purification system according to an embodiment of the present invention.
2 is an exploded perspective view of a window type air purification system according to an embodiment of the present invention.
3 is a cross-sectional view of a window type air purification system according to an embodiment of the present invention.
4 is a block diagram of a cleaning unit according to an embodiment of the present invention.
5 is a block diagram of a cleaning unit according to an embodiment of the present invention.
6 is a perspective view of a filter unit according to an embodiment of the present invention.
7 is an enlarged view of a porous nanoweb according to an embodiment of the present invention.
8 is an enlarged view of a porous nanoweb according to another embodiment of the present invention.
9 is a cross-sectional view of a filter member according to a second embodiment of the present invention.
10 is a cross-sectional view of a filter member according to a third embodiment of the present invention.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings. In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

1 to 3 , a window type air purification system according to an embodiment of the present invention includes a frame 10 mounted on a window frame, and a window unit mounted on one side of the frame 10 to secure sunlight transmission and visibility. (20) and an air purification unit (30) mounted on the other side of the frame (10) to purify outdoor air and then supply it to the room.

The frame 10 is in the form of a square frame, and may have a structure that is fixed to the window frame or moved along the window frame to open and close, and a first mounting part 12 on which the window unit 20 is mounted, and an air purification unit ( 30) is divided into a second mounting portion 14 to which it is mounted.

The window unit 20 is fixed to the first mounting portion 12 of the frame 10 and may be formed of a transparent window that satisfies both sunlight transmission and visibility, or an opaque window that only allows sunlight transmission.

In the case of the existing window-type air purification system, since the entire window is blocked by the air purification device, sunlight cannot enter the room, giving the room a dark and stuffy feeling. In the window type air purification system according to this embodiment, the window unit 20 is mounted on one side of the frame 10 to ensure sunlight transmission and visibility, and the air purification unit 30 is installed on the other side of the frame 10 . By purifying outdoor air directly and supplying it indoors, both air purification and visibility can be satisfied at the same time.

The air purifying unit 30 includes a housing 32 fixed to the second mounting portion 14 of the frame 10, and a blowing unit 36 mounted inside the housing 32 to forcibly blow external air; It is mounted on the front surface of the housing 32 to be exposed to the outside and includes a filter unit 34 for purifying outdoor air.

The housing 32 is mounted on a side surface of the frame 10 located indoors, and an air supply port 42 through which air passing through the filter unit 34 flows into the room is formed on the upper surface thereof, and outdoor air is formed on the front surface thereof. An air inlet 40 through which is introduced is formed, and a cover 38 is mounted on the rear surface to be opened and closed.

The housing 32 is sized to occupy about 1/2 of the space of the frame 10, and the air inlet 40 is formed on the entire front surface of the housing 32 to maximize the area through which air passes. , a support 48 for preventing the filter unit 34 from being separated is formed on the front surface of the housing 32 .

Inside the housing 32, a blowing unit accommodating part 60 to which the blowing unit 36 is mounted, and a filter unit accommodating part 62 to which the filter unit 34 is mounted are formed, and on the lower surface of the housing 32 A filter inlet 64 through which the filter unit 34 is drawn out and drawn in is formed.

When the filter unit 30 is introduced into the filter inlet 64 , it is mounted in the filter unit receiving unit 62 . Therefore, when replacing the filter unit 30, the filter unit 30 can be pulled out through the filter inlet 64, so that the filter replacement operation can be easily performed.

The blowing unit 36 is mounted on the blowing unit receiving unit 60, the suction port 72 of the blowing unit 36 is disposed on the rear side of the filter unit 30, and the exhaust port 74 of the blowing unit 36 is It is disposed in the air inlet 42 of the housing 32 . The blowing unit 36 may be a blower that sucks air in the lateral direction and discharges air in the radial direction.

A plurality of blowing units 36 may be installed depending on the size of the air purification system, and in this embodiment, the first blowing unit 76 and the second blowing unit 78 are configured, and the air supply port 42 is Consisting of a first air supply port 44 and a second air supply port 46 , the air discharged from the first blowing unit 76 is supplied into the room through the first air supply port 44 , and the second The air discharged from the blowing unit 78 is supplied into the room through the second air supply port 46 .

A cleaning unit 80 for periodically cleaning the filter unit 34 as shown in FIGS. 4 and 5 is provided inside the housing 32 .

Since the filter unit 34 according to this embodiment uses a porous nano-web and is installed in a state exposed to the outside, fine dust, yellow sand and other harmful substances do not stick to the surface of the porous nano-web and the filter unit is blown by external wind. (34) is characterized by a natural separation from the surface.

However, in the case of fine dust of PM 2.5 or less, it may accumulate in the pores of the filter unit 34 and block the pores. The cleaning unit 80 is used to maintain the filtering performance of 34 .

The cleaning unit 80 is arranged in plurality at the rear of the filter unit 34 and includes at least one or more spray nozzles 82 for spraying air to the filter unit 34, and between the blowing unit 36 and the spray nozzles 82. An air passage 84 that is connected to and provides the blowing pressure generated by the blowing unit 36 to the injection nozzle 82, and an on/off valve 86 installed in the air passage 84 to open and close the air passage 84. and a control unit 88 for controlling forward and reverse rotation of the blowing unit and an on/off valve 86 .

Then, the control unit 88 operates the cleaning unit 80 when the time set for the operation time of the air purification system by the timer 90 has elapsed to perform the cleaning operation of the filter unit 34 .

In the cleaning unit 80 as described above, when the operation time of the air purification system elapses for a certain period of time, the control unit 88 controls the blower unit 34 to rotate in the reverse direction, and opens the on/off valve 86 to open the indoor air is supplied to the air passage (84). Then, air from the spray nozzle 82 is sprayed on the rear surface of the filter unit 34 to give vibration to the filter unit 34 to drop the dust accumulated on the surface of the filter unit, and the air passes in the reverse direction of the filter unit 34 . to remove the dust accumulated in the pores of the filter unit 34 .

By periodically repeating this process, the filter unit 34 can always maintain a clean state, and thus the air purification performance can be constantly maintained.

As shown in FIG. 6 , the filter unit 34 includes a filter member 52 having a plurality of pores, and a support member 50 mounted on the edge of the filter member 52 to support the filter member 52 . include

The filter member 52 is formed of a porous nanoweb 53 as shown in FIG. 7 , and the porous nanoweb 53 mixes an electrospinning polymer material and a solvent in a certain ratio to make a spinning solution, The solution is spun by an electrospinning method to manufacture nanofibers 54 , and the nanofibers 54 are accumulated to form micropores 56 .

The polymer material used in the present invention is electrospinning, for example, synthetic and natural polymers may be used, and one or a mixture of two or more of these polymers may be used.

Among polymer materials, polyacrylonitrile (PAN), polyvinylidene fluoride (PVdF), polyester sulfone (PES), polystyrene (PS), and polyvinyl chloride (PVC) are particularly preferable as the filter material of the present invention. , Poly Vinychloride), polycarbonate (PC, Poly carbonate), polyurethane (PU, polyurethane), etc., or a mixture of polyvinylidene fluoride (PVdF) and polyacrylonitrile (PAN), or with PVdF PES, PVdF, thermoplastic polyurethane (TPU: Thermoplastic Polyurethane), PVC, PC, etc. can be mixed and used.

As the spinning method applied to the present invention, an upward type with a nozzle, a downward type, and a nozzleless type capable of spinning without a nozzle can be used, and electrospinning, centrifugal electrospinning, flash electrospinning, pulse electrospinning, and bubble electrospinning methods Either one can be used.

Since the porous nanoweb 53 is manufactured by the electrospinning method, the thickness is determined according to the amount of radiation of the polymer material. Therefore, there is an advantage in that it is easy to make the thickness of the porous nanoweb 53 a desired thickness.

Therefore, since the number of pores and the average size of the pores are determined according to the thickness of the porous nanoweb 53, it is possible to prepare an average pore size suitable for filtering fine dust of PM 2.5 or less.

The diameter of the nanofiber 54 is in the range of 0.5 to 3 μm, and the average pore size is preferably 0.2 to 10 μm or less.

And, since the filter unit 34 according to this embodiment is installed in a state exposed to the outside, the porous nanoweb 53 basically has a pore size through which rainwater cannot pass. And a water-repellent coating layer is formed on the surface of the porous nano-web 53 to prevent rainwater from penetrating into the porous nano-web.

As shown in FIG. 8 , since the porous nanoweb 53 is exposed to the outside, a strength reinforcing layer 58 may be laminated to prevent scratches or the like from occurring on the surface of the porous nanoweb 53 .

The strength reinforcing layer 58 is mixed with a pigment, a binder and a solvent in a predetermined ratio and applied to the surface of the porous nanoweb 52 . As the pigment used in the strength reinforcing layer 58, black or color pigments are used, and various colors and tones can be implemented according to the amount and type of pigment used.

The method of applying the strength reinforcing layer 58 may use gravure printing, coating, or the like, and similarly to the method of making the porous nanoweb 52 , it is also possible to make it by electrospinning.

The strength reinforcing layer 58 includes a binder for strengthening the strength of the porous nanoweb 52 to strengthen the surface strength of the porous nanoweb 52 to have scratch resistance.

That is, since the porous nanoweb 52 is manufactured by the electrospinning method and the nanofibers 54 are accumulated, pores 56 are formed between the nanofibers, and the strength reinforcing layer 58 is the nanofiber 54 . It is applied to the point where they meet to strengthen the strength of the porous nanoweb 53 . Accordingly, it is possible to minimize the deformation of the porous nanoweb 53 due to external impact or sound pressure.

As shown in FIG. 9, the filter member according to the second embodiment includes a porous substrate 92 having a plurality of pores, and a porous substrate 92 laminated on the porous substrate 92 and having a plurality of pores formed by an electrospinning method. and a nano web 94 .

The porous nanoweb 94 is the same as the porous nanoweb 53 described in an embodiment.

The porous substrate 92 may be a thermal bond nonwoven fabric, a spun bond nonwoven fabric, a chemical bond nonwoven fabric, an air-laid nonwoven fabric, and mixtures thereof. In addition, as the porous substrate, woven paper having pores, Styrofoam, paper, mesh, etc. may be used in addition to the nonwoven fabric.

The porous substrate and the porous nanoweb may be fused by heat, and may be adhered to each other by forming a double-sided adhesive tape on the edge of the porous substrate.

At this time, the thickness of the porous nano-web 94 is 1 ~ 5㎛, the air permeability is 10 ~ 20 CFM.

When the porous substrate 92 and the porous nanoweb 94 are stacked, the overall thickness may vary depending on the thickness of the porous substrate.

As shown in FIG. 10, the filter member according to the third embodiment includes a porous substrate 92 having a plurality of pores, and a plurality of pores laminated on one surface of the porous substrate 92 and formed by an electrospinning method. It includes a first porous nanoweb 95 having, and a second porous nanoweb 96 laminated on the other surface of the porous substrate and formed by an electrospinning method.

The filter member according to the third embodiment has an air permeability of 7 to 15 CFM, and porous nanowebs are laminated on both sides of the porous substrate 92, respectively, so that the air permeability is lowered, but the filtering performance can be improved.

In the above, the present invention has been illustrated and described with examples of specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and within the scope of not departing from the spirit of the present invention, common knowledge in the art to which the invention pertains Various changes and modifications will be possible by those who have

10: frame 20: window unit
30: air purification unit 34: filter unit
36: blowing unit 40: air inlet
42: air supply port 50: support member
52: porous nano web

Claims (15)

a frame mounted on the window frame and divided into a first mounting part and a second mounting part; a window unit mounted on the first mounting portion of the frame to secure sunlight transmission and visibility; and an air purification unit mounted on the second mounting part of the frame to forcibly blow and purify outdoor air and supply it to the room;
The air purification unit
a housing fixed to the second mounting portion of the frame and having an air inlet through which outdoor air is introduced, and an air supply port through which purified air is supplied to the room at an upper surface thereof;
a blowing unit mounted inside the housing to generate blowing pressure; and
a filter unit mounted on the front surface of the housing to be exposed to the outside to filter outdoor air;
A blower unit receiving part to which the blowing unit is mounted and a filter unit receiving part to which the filter unit is mounted are formed inside the housing, and a filter inlet part through which the filter unit is drawn out and inserted is formed on the lower surface of the housing,
The filter unit includes a filter member having a plurality of pores formed by an electrospinning method and a support member mounted on an edge of the filter member to support the filter member,
The filter member is formed by mixing a polymer material capable of electrospinning and a solvent in a certain ratio to make a spinning solution, electrospinning the spinning solution to make nanofibers, and accumulating the nanofibers to form a porous nanoweb having micropores becomes,
A window type air purification system in which a strength reinforcing layer formed by applying a mixture of a pigment, a binder and a solvent in a certain ratio to the surface of the porous nanoweb is laminated on the surface of the porous nanoweb. According to claim 1,
A window type air purification system in which a support is formed on the front surface of the housing to prevent separation of the filter unit. delete According to claim 1,
Further comprising a cleaning unit installed inside the housing to remove dust adhering to the surface of the filter unit,
The cleaning unit includes a spray nozzle installed inside the housing to spray air to the filter unit;
an air passage connected between the blowing unit and the jet nozzle to provide blowing pressure generated by the blowing unit to the jet nozzle;
an on/off valve installed in the air passage to open and close the air passage; and
and a control unit for controlling forward and reverse rotation of the blowing unit and controlling an on/off valve. According to claim 1,
The diameter of the nanofiber is in the range of 0.5 to 3 μm, the average pore size is 0.2 to 10 μm, the thickness of the porous nanoweb is 1 to 5 μm, and the air permeability is 10 to 20 CFM window type air purification system. delete delete delete delete delete delete delete delete delete delete

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