WO2015186879A1 - Purificateur d'air, procédé permettant de déterminer le temps nécessaire pour remplacer le filtre associé, et dispositif et procédé permettant de déterminer le différentiel de pression en fonction du temps de remplacement du filtre associé - Google Patents

Purificateur d'air, procédé permettant de déterminer le temps nécessaire pour remplacer le filtre associé, et dispositif et procédé permettant de déterminer le différentiel de pression en fonction du temps de remplacement du filtre associé Download PDF

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Publication number
WO2015186879A1
WO2015186879A1 PCT/KR2014/012306 KR2014012306W WO2015186879A1 WO 2015186879 A1 WO2015186879 A1 WO 2015186879A1 KR 2014012306 W KR2014012306 W KR 2014012306W WO 2015186879 A1 WO2015186879 A1 WO 2015186879A1
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WO
WIPO (PCT)
Prior art keywords
filter
differential pressure
replacement time
initial
flow rate
Prior art date
Application number
PCT/KR2014/012306
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English (en)
Korean (ko)
Inventor
조영건
백주현
서인석
윤성진
단철순
강상우
김종완
Original Assignee
코웨이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020140067454A external-priority patent/KR20150139664A/ko
Priority claimed from KR1020140098365A external-priority patent/KR101957686B1/ko
Priority claimed from KR1020140178074A external-priority patent/KR20160016504A/ko
Application filed by 코웨이 주식회사 filed Critical 코웨이 주식회사
Priority to JP2016571312A priority Critical patent/JP6419218B2/ja
Priority to CN201480079532.7A priority patent/CN106457115B/zh
Priority to MYPI2016704466A priority patent/MY182169A/en
Priority to US15/314,530 priority patent/US10188976B2/en
Publication of WO2015186879A1 publication Critical patent/WO2015186879A1/fr

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    • 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
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration

Definitions

  • the present application relates to an air purifier, a filter replacement time determination method thereof, and a filter replacement time differential pressure determination device and method therefor.
  • an air purifier is a device for purifying indoor air contaminated by dust and bacteria through dust collection, sterilization, and deodorization, and includes a plurality of filters to purify the indoor air contaminated.
  • the conventional air purifier determines the filter replacement time depending on the operation time. That is, when the operation time is counted and the accumulated operation time reaches the preset time, the filter replacement time is displayed to allow the user to replace the filter. As such, the conventional air purifier has a problem that it is difficult to replace the filter in a timely manner because the filter is replaced depending on the operation time, although the filter replacement time varies depending on the environment in which the air purifier is installed.
  • Air purifier for an embodiment of the present invention, the memory for storing the flow-differential pressure correlation graph for each use state of the filter; A differential pressure sensor for measuring a differential pressure that is a pressure difference between the front end and the rear end of the filter; And replacing the filter according to a result of matching the differential pressure of the filter measured by the differential pressure sensor and a flow rate of air flowing into the filter when measuring the differential pressure with a flow-differential pressure correlation graph for each use state at predetermined intervals. It may include a filter replacement time management unit for determining the time.
  • Method for determining the filter replacement time of the air purifier storing the flow-differential pressure correlation graph for each use state of the filter; Measuring the differential pressure of the filter at predetermined intervals; And determining the replacement time of the filter based on a result of matching the differential pressure of the filter measured at predetermined periods and the flow rate of air flowing into the filter when the differential pressure is measured with the flow-differential pressure correlation graph for each use state. It may include.
  • Filter replacement time differential pressure determination apparatus for an air purifier according to an embodiment of the present invention
  • the filtering performance measurement unit for measuring the filtering performance of the filter to be tested at each predetermined period
  • the replacement timing state of the filter to be tested when the filtering performance of the filter to be measured measured at each predetermined period is equal to the initial filtering performance of the filter to be compared with the filter to be downgraded by a predetermined step than the filter to be tested.
  • Differential pressure measuring unit for measuring the differential pressure of the;
  • a filter replacement timing differential pressure determining unit configured to determine a differential pressure of the filter replacement timing for the filter to be tested based on the differential pressure in the replacement timing state.
  • a filter replacement time differential pressure determining method for an air purifier may include measuring filtering performance of a filter to be tested at predetermined intervals; When the filtering performance of the test target filter measured at the predetermined period is equal to the initial filtering performance of the comparison target filter having the performance downgraded by a predetermined step than the test target filter, the replacement timing of the test target filter Measuring the differential pressure of the state; And determining the differential pressure of the filter replacement time for the test target filter based on the differential pressure of the replacement timing state of the test target filter.
  • the filter replacement time can be determined by determining the filter replacement time based on the flow-differential pressure correlation according to the use condition of the filter, and by outputting an alarm to remind the user, There is an advantage that can be replaced.
  • FIG. 1 is a block diagram showing the configuration of an air purifier according to an embodiment of the present invention.
  • FIG. 2 is a flow chart showing a filter replacement time determination method of the air purifier according to an embodiment of the present invention.
  • FIG. 3 is an exemplary diagram illustrating a flow rate-differential pressure correlation graph previously stored in a memory of an air purifier according to an exemplary embodiment of the present invention.
  • FIG. 4 is a block diagram showing the configuration of a filter replacement time differential pressure determining device for an air purifier according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating a method of determining a differential pressure of filter replacement time for an air purifier according to an embodiment of the present invention.
  • FIG. 1 is a block diagram showing the configuration of an air purifier according to an embodiment of the present invention.
  • the air purifier 100 includes a control unit 110, a memory 120, an input unit 130, a display unit 140, a filter replacement time managing unit 150, and a differential pressure.
  • the sensor 160 and the alarm unit 170 are included.
  • the controller 110 controls the overall operation of the air purifier and may be implemented by hardware such as a processor. In addition, the controller 110 may be integrally implemented with the filter replacement time manager 150 to be described later.
  • the controller 110 processes a function for outputting an alarm so that a user recognizes a filter replacement time determined based on the differential pressure of the filter measured by the differential pressure sensor 160.
  • the memory 120 stores microcode and various reference data of a program for processing and control of the controller 110, temporary data generated during execution of various programs, and various updatable storage data.
  • the memory 120 may store a flow-differential pressure correlation graph for each of the at least one filter obtained through experiments at the manufacturing stage.
  • the memory 120 pre-stores the differential pressure of the filter replacement time determined based on the differential pressure when the performance of the filter is downgraded by a predetermined step.
  • the flow rate is fixed by measuring the differential pressure of the filter while adjusting the flow rate of the air flowing into the filter to be a preset flow rate, only the differential pressure at the time of replacement of the filter determined based on the differential pressure for each use state needs to be stored. .
  • the input unit 130 may include a plurality of function buttons, and provides button input data corresponding to a button input by a user to the controller 110.
  • the functions of the input unit 130 and the display unit 140 may be performed by a touch screen unit (not shown), the touch screen unit (not shown) is a touch screen input through the user's screen touch and through the touch screen Responsible for graphical display.
  • the display unit 140 displays status information generated during the operation of the air purifier, limited number of characters, a large amount of moving images and still images, and the like.
  • the display unit 140 may use a liquid crystal display (LCD).
  • the filter replacement time management unit 150 filters the differential pressure of the filter periodically and the flow rate of the air flowing into the filter during the differential pressure measurement according to a result of matching the flow-differential pressure correlation graph for each use state stored in the memory 120. Decide when to replace.
  • the flow rate of the air flowing into the filter is measured at the time of measuring the differential pressure of the filter by a flow sensor (not shown) which is installed at the front of the filter of the air purifier 100 and measures the flow rate of the air flowing into the filter. It may be the flow rate of or may be the flow rate of the predetermined air according to the air flow rate step of the air purifier 100 at the time of measuring the differential pressure of the filter.
  • the filter replacement time management unit 150 if the flow-differential pressure-correlation graph for each state of use for the plurality of filters in the memory 120 is stored in advance, to the initial differential pressure and the filter measured in the initial installation step Select one of a plurality of graphs pre-stored in the memory 120 based on the flow rate of the incoming air, and then, depending on whether the differential pressure measured periodically and the flow rate of the air flowing into the filter match the selected graph Determine when to replace.
  • the filter replacement time management unit 150 measures the initial differential pressure through the differential pressure sensor 160 in the initial installation stage, and the flow-differential pressure correlation graph of the plurality of filters in the initial use state previously stored in the memory 120. Based on the above, after checking one filter having a graph matching the measured initial differential pressure and the flow rate of the air flowing into the filter during the initial differential pressure measurement, the flow-differential pressure correlation graph of the replacement filter state of the identified filter is selected. do.
  • the filter replacement time manager 150 periodically measures the differential pressure of the filter through the differential pressure sensor 160, and periodically measures the differential pressure and the flow rate of the air flowing into the filter during the differential pressure measurement. Check if it matches the flow-differential pressure correlation graph.
  • the filter replacement time management unit 150 matches the differential pressure measured periodically and the flow rate of the air flowing into the filter during the differential pressure measurement match the flow-differential pressure correlation graph of the selected replacement time state, the internal filter replacement time is determined. Determine that it has arrived, and outputs alarm information informing the filter replacement time through the alarm unit 170.
  • the filter replacement time management unit 150 if the flow rate of the differential pressure measured periodically and the flow rate of the air flowing into the filter during the differential pressure measurement does not match the flow-differential pressure correlation graph of the selected replacement time state, the internal filter replacement time is Decide that you have not arrived.
  • the differential pressure of the filter may be measured while the flow rate of the air flowing into the filter is adjusted to be a preset flow rate.
  • the filter replacement time manager 150 may periodically measure the differential pressure of the filter. And the filter replacement time is determined according to the result of comparing the differential pressure of the filter replacement time stored in the memory 120 based on the initial differential pressure.
  • the differential pressure sensor 160 is provided at both ends (ie, front and rear ends) of the internal filter to measure the differential pressure of the internal filter.
  • the differential pressure means the pressure difference between the front end and the rear end of the filter. That is, the differential pressure sensor 160 is installed on one side (front side) of the filter through which the unfiltered air flows in and the other side (back side) of the filter through which the filtered air flows out, and measured at the front end of the filter through the differential pressure sensor 160.
  • the differential pressure of the filter can be measured by calculating the difference between the pressure measured and the pressure measured at the rear end.
  • the alarm unit 170 notifies the user of the measurement result for the differential pressure, the filter replacement time, and the like.
  • the alarm unit 170 may output an alarm so that a user may recognize a measurement result of the differential pressure, a filter replacement time, and the like through a human sense such as vision and hearing.
  • the alarm unit 170 may output a warning sound or flash a warning light by using a buzzer or a light emitting diode (LED), or guide the display through the display unit 140 to measure a differential pressure and a filter. An alarm can be output to notify the time of replacement.
  • a buzzer or a light emitting diode LED
  • An alarm can be output to notify the time of replacement.
  • FIG. 2 is a flow chart showing a filter replacement time determination method of the air purifier according to an embodiment of the present invention.
  • the air purifier previously stores a flow-differential pressure correlation graph for each of at least one filter in a memory.
  • the flow-differential pressure correlation graph for each use state is a state in which the air volume is mechanically set to a predetermined stage (for example, three to five stage air flows) for at least one filter through experiments at the manufacturing stage.
  • the graph shows the correlation between the flow rate and the differential pressure according to the use condition of the filter.
  • the filter is used in the initial use state (100% of the inflow flow rate), the intermediate use state (90% of the discharge flow rate in the initial use state is discharged), and the replacement timing state (in the initial use state). 80% of the discharge flow rate is discharged).
  • FIG. 3 An example of the flow-differential pressure correlation graph for each use state obtained as described above is illustrated in FIG. 3.
  • the differential pressure of the filter may be measured while the flow rate of the air flowing into the filter is adjusted to be a preset flow rate.
  • the air purifier may be based on the differential pressure of each filter used in operation 201.
  • the differential pressure of the determined filter replacement time is stored in the memory.
  • the air purifier measures the initial differential pressure of the filter while operating at a predetermined air volume (for example, three-stage air volume) in the initial installation stage in step 203, and provides alarm information informing the initial measurement result as necessary. You can also output a predetermined air volume (for example, three-stage air volume) in the initial installation stage in step 203, and provides alarm information informing the initial measurement result as necessary. You can also output a predetermined air volume (for example, three-stage air volume) in the initial installation stage in step 203, and provides alarm information informing the initial measurement result as necessary. You can also output
  • a predetermined air volume for example, three-stage air volume
  • the air purifier is matched to the initial measurement result, that is, flows into the filter when the measured initial differential pressure and the initial differential pressure are measured based on the flow-differential pressure correlation graph of the plurality of filters in the initial use state previously stored in the memory in step 205.
  • the flow-differential pressure correlation graph of the replacement filter state of the identified filter is selected.
  • the air purifier regards the internal filter as the same filter as the identified filter.
  • Step 205 is performed when the flow rate-differential pressure correlation graph for the plurality of filters is stored in the memory, and may be omitted when only the flow rate-differential pressure correlation graph corresponding to the internal filter is stored in the memory.
  • the air purifier measures the differential pressure of the filter in a state in which the air purifier is operated at a predetermined air volume at a predetermined cycle.
  • the air purifier may output alarm information informing of the measurement result.
  • the air purifier has a flow rate-differential pressure correlation in which the flow rate of the air flowing into the filter at the time of measuring the differential pressure of the filter measured in the state of operating the air flow at the predetermined stage at a predetermined cycle in step 209 is selected. Check if the graph matches. That is, it is checked whether the differential pressure measured at a predetermined period and the flow rate of air at the differential pressure measurement match any point on the flow-differential pressure correlation graph in the selected replacement timing state.
  • the air purifier determines that the replacement time of the filter has arrived in step 211, and outputs alarm information indicating the filter replacement time.
  • the air purifier determines that the replacement time of the filter has not arrived, and returns to step 207 to repeat the following steps.
  • the differential pressure of the filter may be measured while adjusting the flow rate of the air flowing into the filter to be a preset flow rate, in which case, the air purifier may measure the initial differential pressure and the differential pressure of the filter measured at a predetermined period. Based on the result of the comparison with the differential pressure of the pre-stored filter replacement time, it is determined whether to replace the filter.
  • the air purifier then terminates the algorithm according to the invention.
  • the air purifier when the internal filter is replaced by the user according to the output of the alarm information indicating the filter replacement time in step 211, the air purifier returns to step 203 to measure the initial differential pressure at a predetermined air flow rate, and the initial measurement result is displayed. After outputting the notifying alarm information, the following steps may be repeated.
  • FIG. 4 is a block diagram showing the configuration of a filter replacement time differential pressure determining device for an air purifier according to an embodiment of the present invention.
  • the filter replacement time differential pressure determining device 400 includes a filtering performance measuring unit 410, a differential pressure measuring unit 420, and a filter replacement time differential pressure determining unit 430. Based on the differential pressure at the time when the filtering performance of the filter to be tested is downgraded by a predetermined step, the differential pressure of the filter replacement time is determined and stored in a memory (not shown) provided in the air purifier.
  • the filtering performance of the filter can be applied to remove performance.
  • CA Clean Air
  • CAD Clean Air Delivery Rate
  • JEMA Japan Electrical Manufacturers' Association
  • the air purifier's filter designed to cover an area of 15 equilibrium will be contaminated over time and will have the same performance as the filter covering an area of 13 equilibrium.
  • the differential pressure at the time of filter replacement can be determined.
  • the filtering performance measuring unit 410 measures the initial filtering performance of the comparison target filter having the performance downgraded by a predetermined step than the test target filter and the test target filter.
  • the filtering performance measuring unit 410 periodically measures the filtering performance of the test target filter.
  • the differential pressure measuring unit 420 measures the initial differential pressure of the test target filter at the time when the initial filtering performance of the test target filter is measured by the filtering performance measuring unit 410.
  • the differential pressure measuring unit 420 may perform the initial filtering of the comparison target filter having the filtering performance of the test target filter periodically measured by the filtering performance measuring unit 410 having a performance downgraded by a predetermined step than the test target filter. Measure the differential pressure of the filter under test (ie the differential pressure at the time of replacement) at the same time as the performance.
  • the differential pressure measuring unit 420 measures the differential pressure of the filter to be tested in a state in which the flow rate of the air flowing into the test object filter is adjusted to be a preset flow rate.
  • the filter replacement time differential pressure determining unit 430 may determine the differential pressure of the filter replacement time for the filter to be tested (for example, the initial differential pressure based on the initial differential pressure measured by the differential pressure measurement unit 420 and the differential pressure in the replacement timing state). The difference in the differential pressure in the replacement timing state. Accordingly, the air purifier provided with the filter to be tested may determine the replacement time of the internal filter based on the differential pressure of the filter replacement time determined by the filter replacement time differential pressure determining device 400.
  • the above-described filter replacement time differential pressure determining device 400 may be included in the air purifier provided with the filter to be tested, or may be implemented as a separate device associated with the air purifier.
  • FIG. 5 is a flowchart illustrating a method of determining a differential pressure of filter replacement time for an air purifier according to an embodiment of the present invention.
  • the filter replacement time differential pressure determination method illustrated in FIG. 5 may be performed by the filter replacement time differential pressure determination apparatus illustrated in FIG. 4.
  • the differential pressure determining device for inserting a filter inserts an unused test target filter and a foreign material having a size of 0.3 into a first experimental chamber having a predetermined size (for example, 30 m 3 ) and replaces a fan ( FAN) is used to maintain a predetermined air flow rate (e.g., three-stage air flow rate), so that the initial filtering performance of the filter under test, for example, foreign substances having a size of 0.3, becomes less than 1/3 of the initial concentration.
  • the time T1 is measured, and the initial differential pressure P1 of the filter to be tested at that time is measured.
  • the filter replacement time differential pressure determining device inserts an unused comparison target filter having a performance of downgrading by a predetermined stage than the test target filter in the second experimental chamber of the same size and a foreign matter of 0.3 size in step 503, and removes a fan.
  • the initial filtering performance of the filter to be compared for example, the time T2 at which the foreign matter of 0.3 size becomes 1/3 or less of the initial concentration is measured.
  • the filter to be tested and the filter to be compared may be, for example, filters of an air purifier designed to cover a use area of 15 equilibrium and 13 equilibrium, respectively.
  • the filter replacement time differential pressure determining device periodically inserts a foreign material having a size of 0.3 into the first experimental chamber in step 505 and periodically measures the filtering performance of the filter to be tested.
  • the filter under test is contaminated over time due to the periodic insertion of foreign substances, and thus the filtering performance of the periodically measured test filter decreases gradually compared to the initial filtering performance.
  • the filter replacement time differential pressure determining device determines when the filtering performance of the filter to be tested periodically measured in step 507 is equal to the initial filtering performance of the filter to be compared, for example, when a foreign substance having a size of 0.3 is 1/3 of the initial concentration.
  • the time when the following time becomes T2 is determined, and the differential pressure P2 in the state of replacement time of the filter under test at that time is measured.
  • the filter replacement time differential pressure determining device determines the differential pressure of the filter replacement time for the filter to be tested (for example, the initial differential pressure P1 and the replacement timing state) based on the differential pressure P2 of the replacement timing state and the initial differential pressure P1 measured in step 509. Difference of the differential pressure P2).
  • the differential pressure of the filter replacement time determined in this way is stored in the memory of the air purifier to which the same filter as the filter under test is applied.
  • the filter replacement time differential pressure determining device terminates the algorithm according to the present invention.
  • the method for determining the filter replacement time thereof, and the apparatus and method for determining the filter replacement time differential pressure therefor, the filter replacement is performed based on the correlation between the flow rate and the differential pressure according to the use condition of the filter.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Un purificateur d'air selon un mode de réalisation de la présente invention peut comprendre : une mémoire permettant de mémoriser un graphique de corrélation de différentiel de débit/pression par rapport à chaque état d'utilisation d'un filtre ; un capteur de différentiel de pression permettant de mesurer un différentiel de pression, qui correspond à une différence de pression entre les extrémités avant et arrière du filtre ; et une unité de gestion du temps de remplacement du filtre permettant de déterminer le temps nécessaire pour remplacer le filtre en fonction d'un résultat de mise en correspondance d'un différentiel de pression du filtre, qui est mesuré par le capteur de différentiel de pression selon un cycle préétabli, et le débit d'air s'écoulant dans le filtre pendant la mesure du différentiel de pression avec le graphique de corrélation de différentiel de débit/pression pour chaque état d'utilisation.
PCT/KR2014/012306 2014-06-03 2014-12-15 Purificateur d'air, procédé permettant de déterminer le temps nécessaire pour remplacer le filtre associé, et dispositif et procédé permettant de déterminer le différentiel de pression en fonction du temps de remplacement du filtre associé WO2015186879A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2016571312A JP6419218B2 (ja) 2014-06-03 2014-12-15 空気浄化機、そのフィルタの交換時期決定方法、及びフィルタの交換時期差圧決定装置と方法
CN201480079532.7A CN106457115B (zh) 2014-06-03 2014-12-15 空气净化器、确定过滤器更换时间的方法及确定过滤器更换时间压差的设备和方法
MYPI2016704466A MY182169A (en) 2014-06-03 2014-12-15 Air purifier, method for determining time to replace filter thereof, and device and method for determining filter replacement time pressure differential therefor
US15/314,530 US10188976B2 (en) 2014-06-03 2014-12-15 Air purifier, method for determining time to replace filter thereof, and device and method for determining filter replacement time pressure differential therefor

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR1020140067454A KR20150139664A (ko) 2014-06-03 2014-06-03 공기정화기 및 이의 필터교체시기 결정 방법
KR10-2014-0067454 2014-06-03
KR10-2014-0097227 2014-07-30
KR20140097227 2014-07-30
KR10-2014-0098365 2014-07-31
KR1020140098365A KR101957686B1 (ko) 2014-07-31 2014-07-31 필터교체시기 차압 결정장치 및 이의 필터교체시기 차압 결정 방법, 및 이를 구비하는 공기정화기
KR10-2014-0178074 2014-12-11
KR1020140178074A KR20160016504A (ko) 2014-07-30 2014-12-11 공기정화기 및 이의 필터교체시기 결정 방법

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WO2015186879A1 true WO2015186879A1 (fr) 2015-12-10

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WO2020088031A1 (fr) * 2018-11-01 2020-05-07 青岛海尔空调器有限总公司 Procédé et système de rappel de nettoyage de module de purification, et climatiseur
EP3675984A4 (fr) * 2017-08-29 2021-04-28 3M Innovative Properties Company Détection de l'état d'un filtre à air
KR20230003935A (ko) * 2021-06-30 2023-01-06 현대제철 주식회사 집진 장치 및 이의 제어 방법

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WO2020088031A1 (fr) * 2018-11-01 2020-05-07 青岛海尔空调器有限总公司 Procédé et système de rappel de nettoyage de module de purification, et climatiseur
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