KR101740281B1 - Self-Regeneration Air Purifier - Google Patents

Self-Regeneration Air Purifier Download PDF

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Publication number
KR101740281B1
KR101740281B1 KR1020160028817A KR20160028817A KR101740281B1 KR 101740281 B1 KR101740281 B1 KR 101740281B1 KR 1020160028817 A KR1020160028817 A KR 1020160028817A KR 20160028817 A KR20160028817 A KR 20160028817A KR 101740281 B1 KR101740281 B1 KR 101740281B1
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KR
South Korea
Prior art keywords
air
porous filter
duct
filter
flow path
Prior art date
Application number
KR1020160028817A
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Korean (ko)
Inventor
박응수
Original Assignee
오드텍 주식회사
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Priority to KR1020160028817A priority Critical patent/KR101740281B1/en
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Publication of KR101740281B1 publication Critical patent/KR101740281B1/en

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    • B01D46/0063—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2058—Carbonaceous material the material being particulate
    • B01D39/2062—Bonded, e.g. activated carbon blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B01D46/0019—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/30—Porosity of filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/50—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for air conditioning

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

Provided is a self-regeneration air purifier which is convenient in use, reduces maintenance costs and improves air purifying performance. The self-regeneration air purifier comprises: a duct forming a flow path therein; a ventilator transferring air through the flow path; a first porous filter which is installed in the duct, which collects pollutants from air transferred through the flow path, and in which the pollutants heated at the uniform temperature and collected is oxidized by heat; and a second porous filter which is installed in the duct, which is arranged in a direction in which air transferred through the flow path passes through the first porous filter and progresses, which collects the pollutants from the transferred from the air, and in which the collected pollutants heated by heat discharged from the first porous filter are adsorbed.

Description

[0001] Self-Regeneration Air Purifier [0002]

More particularly, the present invention relates to a self-regenerating type air purification apparatus, and more particularly, to a method and apparatus for reducing the time and cost required for cleaning or replacing a filter by heating a filter as the pollutant accumulates in the filter, The present invention relates to a self-regenerating type air purifier.

Korean Patent No. 10-1378172 discloses an air purification apparatus using a microwave.

The microwave-assisted air purifying apparatus includes a hollow housing, a ceramic filter unit provided inside the housing, and a microwave generating unit for generating a microwave to heat the ceramic filter unit.

Since the ceramic filter portion is strong against heat and is porous, it is possible to collect fine particles contained in the air passing through the ceramic filter portion, thereby increasing air filtering efficiency.

When the ceramic filter unit is heated to a high temperature in response to the microwave, the air passing through the ceramic filter unit is heated, and the foreign substances such as soot contained in the air are completely burned and removed.

The ceramic filter unit is disposed in the housing along the longitudinal direction of the housing, and a plurality of flow passages through which the air passes are defined by partition walls.

The housing has a hollow shape for forming a space therein, and has an inlet at one side and an outlet at the other side. Between the inlet of the housing and the ceramic filter part, the air introduced into the housing is sealed by the shielding member so as not to escape.

In the air purifying apparatus using the microwave as described above, the air introduced into the housing passes through the ceramic filter unit heated to a high temperature and escapes through the housing discharge port in a state in which the air is not heated, thereby causing waste of heat energy, .

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide an air conditioner in which the filter is disposed in two stages, the filter at the front end is heated, The present invention is directed to a self-regenerating type air cleaning apparatus which eliminates the pollutants accumulated in the filter of the self-regenerating type air filter, thereby preventing waste of heat energy and improving air cleaning performance.

The self-regenerating type air cleaning apparatus proposed by the present invention includes a duct for forming a flow path therein, a blower for transferring the air through the flow path, and a dust collecting unit for collecting the pollutant from the air, which is installed in the duct, A first porous filter which is heated to a predetermined temperature to thermally oxidize the collected pollutants; and a second porous filter provided inside the duct and arranged in a direction in which the air transferred through the first porous filter passes through the first porous filter, And a second porous filter that collects contaminants from the air that is heated by the heat released from the first porous filter and desorbs the collected contaminants.

And a hood part having an air inflow hole formed in the bottom surface may be formed at one end of the duct.

The first porous filter is formed of a porous ceramic.

The second porous filter is formed of activated carbon fiber or activated carbon.

The duct may further include an auxiliary flow path for avoiding the first porous filter to transfer air.

In addition, the present invention may further include a filter housing having the first porous filter installed therein, and may further include a heating device for heating the first porous filter.

Wherein the filter housing has a tubular shape having both end faces opened and has the first porous filter installed therein and air to be introduced through the flow path is introduced into one end face and discharged to the other end face, And an opening door for opening and closing the door.

The filter housing may further include an outlet door that opens and closes the other end surface of the body.

In addition, the present invention provides an air conditioner comprising: a branching inlet tube formed with an inlet flow passage through which air having passed through the duct is introduced and a pair of outlet flow paths through which the introduced air is discharged; Further comprising a first discharge pipe for discharging the air to the outside and a second discharge pipe connected to the other one of the outlet channels for discharging air to a place where air flows into the duct, It is also possible to install.

In the self-regenerating type air purifier according to the embodiment of the present invention, the first porous filter and the second porous filter are disposed at regular intervals in the flow path, and the second porous filter It is possible to increase the utilization of thermal energy, to improve the air purification efficiency, and to prevent an increase in the atmospheric temperature.

In the self-regenerating type air purifier according to the embodiment of the present invention, since the auxiliary flow path for avoiding the flow path through the first porous filter is formed, air is transferred through the auxiliary flow path during the thermal oxidation process, It is possible to constantly purify air.

Further, according to the self-regenerating type air purifier according to the embodiment of the present invention, it is possible to collect and effectively remove fine dust, smoke, noxious gas, volatile organic compounds, odor and the like through the first porous filter and the second porous filter It is possible.

Further, according to the self-regenerating type air purifier according to the embodiment of the present invention, it is possible not only to discharge the purified air to the outside but also to discharge the air back into the room to circulate the air, thereby preventing waste of energy It is possible.

1 is a front view showing a self-regenerating type air cleaning apparatus according to a first embodiment of the present invention.
2 is a bottom view of a self-regenerating type air purifier according to a first embodiment of the present invention.
3 is a longitudinal sectional view showing a self-regenerating type air purifier according to a first embodiment of the present invention.
4 is a longitudinal sectional view showing a closed state of the filter housing in the self-regenerating type air cleaning apparatus according to the first embodiment of the present invention.
5 is a longitudinal sectional view showing the open state of the filter housing in the self-regenerating type air cleaning apparatus according to the first embodiment of the present invention.
Fig. 6 is a longitudinal sectional view showing the auxiliary flow path in the self-regenerating type air cleaning apparatus according to the second embodiment of the present invention. Fig.
7 is a front view showing a self-regenerating type air cleaning apparatus according to a third embodiment of the present invention.
FIG. 8 is a partial cross-sectional view showing a branch pipe in the self-regenerating type air purifier according to the third embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of a self-regenerating type air purifier according to the present invention will be described in detail with reference to the drawings.

In the following description, the same reference numerals are used for the same technical elements, and detailed descriptions for avoiding redundant description are omitted.

The embodiments described below are intended to illustrate the preferred embodiments of the present invention in an effective manner and should not be construed to limit the scope of the present invention.

In the figure, the dotted arrows indicate the direction of air movement.

1 to 3, the self-regenerating type air purifier of the first embodiment of the present invention includes the duct 10, the blower 20, the first porous filter 30, the filter housing 40, And a porous filter (50).

The duct 10 forms a flow path having a predetermined length and includes a hood 12 having a plurality of inlet holes 13 formed at a front end portion (right end portion) of the duct 10 so that air can be introduced into the duct.

A discharge hole 14 through which air is discharged from the inside of the duct 10 is formed at a rear end portion (left end portion) of the duct 10.

The blower 20 is connected to a discharge hole 14 formed at the rear end of the duct 10 and sucks air into the air inlet 13.

The first porous filter 30 is disposed inside the duct 10 and collects contaminants from the air transferred through the passage, and is heated to a predetermined temperature to thermally oxidize the collected contaminants.

The first porous filter 30 is formed of a ceramic which is resistant to heat and has porosity.

Examples of the first porous filter 30 include silicon carbide, silicon nitride, cordierite, alumina, zirconia, and activated carbon.

The first porous filter 30 may have a honeycomb structure, a foam structure, or the like.

The first porous filter 30 may be formed by mixing a conductive material (a material having a high electrical conductivity) in a ceramic material so that the first porous filter 30 can generate heat when power is applied thereto.

The first porous filter 30 may be constructed in the same manner as a known porous ceramic filter. That is, a plurality of flow passages 31 through which air flows along the longitudinal direction, may be defined by partition walls 32.

A pressure gauge (not shown) may be installed in the duct 10 to check the ventilation state of the first porous filter 30 in the front passage and the rear passage of the first porous filter 30. That is, when the pressure difference between the two pressure gauges installed on the front and back of the first porous filter 30 is known, the flow rate can be known by observing the flow rate by the pressure difference.

The first porous filter 30 is heated to approximately 700 to 900 DEG C to thermally oxidize contaminants to be collected.

In the self-regenerating type air purifier according to the first embodiment of the present invention, a heating device (not shown) may further be included for heating the first porous filter 30.

The heating device for heating the first porous filter 30 can be configured in various ways using various heat sources.

For example, it can be constituted by a dielectric heating method using a microwave, and it can be configured by applying various methods such as a heat radiation heating method, a hot air heating method, and an electric heating method.

As one of the thermal radiation heating methods, it is possible to provide a heating element 32 in front of and behind the first porous filter 30.

The heating device may be configured by applying two or more of the above-described various heating methods.

As shown in FIG. 4, the filter housing 40 has a cylindrical shape with both end surfaces opened. The first porous filter 30 is installed in the filter housing 40, and the air conveyed through the flow path is introduced into one end surface A body 41 to be discharged to the other end surface, and an inlet door 42 for opening and closing one end surface of the body 41.

The filter housing 40 may be provided with a heat insulating layer (not shown) to prevent heat energy from leaking to the outside of the first porous filter 30.

The filter housing 40 may be made of a material capable of shielding microwaves when the first porous filter 30 is heated by a microwave dielectric heating method.

The inlet door 42 is normally open during air purification and the first porous filter 30 closes one end surface of the body 41 during heating to block air from being transferred into the filter housing 40, .

The entrance door 42 can be configured to be openable and closable by a sliding door type or a hinged door type. For example, the inlet door 42 may be hinged to an upper portion of one end of the body 41 and may be rotated up and down to open and close one end face of the body 41.

The heating element 32 may be installed on the inner surface of the inlet door 42. The heating element 32 can be, for example, a heating wire.

The filter housing 40 may further include an outlet door 44 for opening and closing the other end surface of the body 41 to improve heat loss prevention performance.

Like the entrance door 42, the exit door 44 is configured to be openable and closable by a sliding door type or a hinged door type.

For example, the outlet door 44 may be hinged to the upper portion of the other end of the body 41 so as to open and close the other end surface of the body 41 while being rotated up and down.

The heating body 32 may be installed on the inner surface of the outlet door 44.

5, the second porous filter 50 is disposed in a direction in which the air conveyed through the channel formed in the duct 10 passes through the first porous filter 30 and is conveyed Collects contaminants from the air.

The second porous filter (50) is heated by the heat released from the first porous filter (30) to desorb the collected contaminants.

The second porous filter 50 is made of activated carbon fiber or activated carbon so that it is strong against heat and has fine pores and is excellent in deodorization and adsorption performance of volatile organic compounds (VOCs) and the like.

When the second porous filter 50 made of activated carbon fiber is exposed to the heat of about 120 to 600 ° C, desorbed contaminants may be desorbed and desorbed at about 150 to 200 ° C.

The desorption of contaminants trapped in the second porous filter 50 can proceed after the thermal oxidation of the contaminants that proceed with the first porous filter 30 or are captured by the first porous filter 30.

The second porous filter 50 may be formed to be capable of self-heating by being powered by a power supply unit (not shown).

Although not shown in the drawing, an air filter may be further disposed behind the second porous filter 50 to remove gas, fine dust, bacteria, odors, etc., and a humidifying device or a wet scrubber may be further provided It is also possible to install it.

The air filter may be an activated carbon filter, an activated carbon fiber filter, a HEPA filter, a photocatalytic filter, an antibacterial filter, an ionizer, or the like.

6, the self-regenerating type air purifier according to the second embodiment of the present invention may further include an auxiliary flow path 16 through which the air is conveyed by avoiding the first porous filter 30 Do.

The auxiliary passage (16) is formed between the first porous filter (30) and the inner surface of the duct (10). The auxiliary passage 16 is formed between the lower side of the body 41 of the filter housing 40 and the inner surface of the duct 10.

When the auxiliary passage (16) is formed, air can be transferred while the pollutants accumulated in the first porous filter (30) are thermally oxidized.

Although not shown in the drawing, the auxiliary flow path 16 may be formed so as to be capable of opening and closing.

The auxiliary passage 16 is openable and closable by an inlet door 42 and / or an outlet door 44 of the filter housing 40.

The inlet door 42 is rotatably installed between one end surface of the body 41 of the filter housing 40 and the auxiliary flow path 16 so as to close one end surface of the body 41 when rotated to one side, And may be provided so as to close the auxiliary flow path 16 during rotation.

The outlet door 44 is also rotatably installed between the other end surface of the body 41 of the filter housing 40 and the auxiliary flow path 16 in the same manner as the inlet door 42, And may be installed to close the end surface and close the auxiliary flow path 16 when rotating to the opposite side.

The auxiliary flow path 16 can be formed at two places vertically so as to be openable and closable by the inlet door 42 and the outlet door 44, respectively.

7 and 8, the self-regenerating type air purifier according to the third embodiment of the present invention is provided with an inlet flow path 61 through which air having passed through the duct 10 is formed, A first branch pipe 60 connected to one of the outlet passages 62 and 63 for discharging air to the outside of the vehicle, Further comprising a second discharge pipe (80) connected to the other of the outlet passages (62, 63) and circulating air to a space (2) where the inlet hole (12) Off valves 65 and 66 may be additionally provided in the outlet flow paths 62 and 63, respectively.

The blower 20 is installed to connect the discharge port 14 of the duct 10 and the inlet duct 61 of the branch pipe 60.

Next, the operation of the self-regenerating type air purifier according to the embodiment of the present invention will be described with reference to the drawings.

Air is introduced into the duct 10 through the inlet hole 13 formed in the front of the duct 10 and the air introduced into the duct 10 flows into the duct 10, An air purification mode is performed in which the first porous filter 30 and the second porous filter 50 are successively passed through the discharge hole 14 and then discharged to the outside of the duct 10 through the discharge hole 14. [ At this time, the inlet door 42 and the outlet door 44 of the filter housing 40 are in the open state (see FIG. 3)

As the air purifying mode is performed for a predetermined period of time, contaminants are collected in the first porous filter 30 and the second porous filter 50. As the operating time of the blower 20 increases, Contaminants accumulate in the filter (30) and the second porous filter (50). When pollutants accumulate, the air purification performance deteriorates and the air that is transferred may be exposed to the pollutants and become secondary pollution.

Therefore, a filter regeneration mode is performed to remove contaminants accumulated in the first porous filter 30 and the second porous filter 50.

The operation of the blower 20 is stopped first in order to perform the filter regeneration mode.

At this time, the controller (not shown) may set the total operating time of the blower 20 to stop the operation of the blower 20 at the end of a certain operation time. The controller may measure the pressure of the flow path inside the duct 10 by using a pressure gauge and may stop the operation when the airflow is lower than that in the air purifying mode and the pressure rises more than the internal flow pressure of the duct 10. Further, the exhaust gas concentration discharged to the outside of the duct 10 may be measured by the gas component analyzer, and the operation may be stopped when the concentration of the exhaust gas is not less than a predetermined gas concentration.

After the blower 20 is stopped, the body 41 is closed through the inlet door 42 and the outlet door 44 of the filter housing 40 and the first porous filter 30 is heated to about 800 ° C. do. At this time, the controller keeps the first porous filter 30 heated to about 800 캜 for about 10 to 30 minutes.

Air can be circulated naturally through the duct 10 while a certain flow rate of air is being transferred through the auxiliary flow path 16 while the first porous filter 30 is heated. During the heating of the first porous filter 30, the blower 20 is restarted to transfer a predetermined flow rate of air through the auxiliary flow path 16, so that the air is temporarily supplied to the second porous filter 50 by the second porous filter 50 A temporary air cleaning mode may be implemented. At this time, the flow rate of air is usually about 20 ~ 80% of the air purifying mode.

After the first porous filter 30 is heated for a predetermined period of time, the inlet door 42 and the outlet door 44 of the filter housing 40 are opened and the fan 20 is operated again when the blower 20 is stopped. At this time, the inlet door 42 and the outlet door 44 open a part (about 30 to 70%) of the opened end face of the body 41.

As the filter housing 40 is opened and the blower 20 is operated again, air flowing into the inlet hole 13 of the duct 10 is transferred to the inside of the body 41 of the filter housing 40, (Heated air) is heated to a predetermined temperature by heat energy accumulated in the inside of the filter housing 40 and discharged from the inside of the body 41 of the filter housing 40.

The heat released from the inside of the body 41 of the filter housing 40 desorbs contaminants accumulated in the second porous filter 50 while passing through the second porous filter 50 and is discharged to the outside of the duct 10 do.

Thereafter, when the heat released from the filter housing 40 becomes lower than the set temperature (approximately 120-150 ° C.), the inlet door 42 and the outlet door 44 are opened completely to the opened end face of the body 41 The mode is switched to the normal air purifying mode. The heat released from the filter housing 40 can be measured by a temperature sensor (not shown) installed in front of or behind the second porous filter 50.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that they belong to the scope of the present invention.

10: duct 12: hood portion 13: air inflow hole
16: auxiliary flow path 20: blower 30: first porous filter
40: filter housing 41: body 42: inlet door
44: outlet door 50: second porous filter 60:
70: first discharge pipe 80: second discharge pipe

Claims (9)

A duct for forming a flow path therein,
A blower for blowing air through the flow path,
A first porous filter disposed inside the duct and collecting contaminants from air transported through the channel, the first porous filter being heated to 700 to 900 ° C. and thermally oxidizing the collected contaminants;
A filter housing in which the first porous filter is installed,
Wherein the first porous filter is disposed in the duct and the air conveyed through the channel passes through the first porous filter to collect contaminants from the conveyed air and is heated by the heat released from the first porous filter, A second porous filter for desorbing the collected contaminants,
And an auxiliary flow path formed in the duct and bypassing the first porous filter to transfer air,
Wherein the first porous filter is formed of a porous ceramic,
Wherein the second porous filter is formed of activated carbon fiber or activated carbon,
Wherein the filter housing has a tubular shape having both end surfaces opened and has the first porous filter installed therein and the air to be introduced through the flow path is introduced into one end face and discharged to the other end face, And an outlet door for opening and closing the other end surface of the body,
Wherein the inlet door is rotatably installed between one end surface of the body of the filter housing and the auxiliary flow path so as to close one end surface of the main body when it rotates to one side and close the auxiliary flow path when rotating to the opposite side,
Wherein the outlet door is rotatably installed between the other end surface of the body of the filter housing and the auxiliary flow path so as to close the other end surface of the body when rotated to one side and to close the auxiliary flow path when rotating to the opposite side. delete delete delete delete delete The method according to claim 1,
Further comprising a heating device for heating the first porous filter. The method according to claim 1,
An inlet duct through which the air having passed through the duct flows, and a pair of outlet ducts through which the introduced air is discharged,
A first discharge pipe connected to one of the pair of the outlet flow paths and discharging the air to the outside,
And a second discharge pipe connected to the other of the outlet passages and discharging air to a place where air flows into the duct,
And each of the outlet channels is further provided with an opening / closing valve. The method according to claim 1 or 8,
And a hood portion having a plurality of air inflow holes formed in a bottom surface thereof is formed at one end of the duct.
KR1020160028817A 2016-03-10 2016-03-10 Self-Regeneration Air Purifier KR101740281B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102137386B1 (en) * 2019-09-30 2020-07-24 박문수 Filter
US11701635B2 (en) 2020-02-19 2023-07-18 Samsung Electronics Co., Ltd. Material, filter, and device for removing contaminant
US11794173B2 (en) 2021-03-08 2023-10-24 Samsung Electronics Co., Ltd. Composite photocatalyst structure, and photocatalytic filter and air purification device including the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200276525Y1 (en) * 2002-02-28 2002-05-24 안호근 Removal system of VOC at low concentration using surface-modified activated carbon and regenerated spent catalyst
JP2009156180A (en) * 2007-12-27 2009-07-16 Hino Motors Ltd Exhaust emission control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200276525Y1 (en) * 2002-02-28 2002-05-24 안호근 Removal system of VOC at low concentration using surface-modified activated carbon and regenerated spent catalyst
JP2009156180A (en) * 2007-12-27 2009-07-16 Hino Motors Ltd Exhaust emission control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102137386B1 (en) * 2019-09-30 2020-07-24 박문수 Filter
US11701635B2 (en) 2020-02-19 2023-07-18 Samsung Electronics Co., Ltd. Material, filter, and device for removing contaminant
US11794173B2 (en) 2021-03-08 2023-10-24 Samsung Electronics Co., Ltd. Composite photocatalyst structure, and photocatalytic filter and air purification device including the same

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