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WO2013169089A1 - Dispositif de détermination du temps de nettoyage de plaque de collecte de poussière et procédé pour celui-ci - Google Patents

Dispositif de détermination du temps de nettoyage de plaque de collecte de poussière et procédé pour celui-ci Download PDF

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Publication number
WO2013169089A1
WO2013169089A1 PCT/KR2013/005249 KR2013005249W WO2013169089A1 WO 2013169089 A1 WO2013169089 A1 WO 2013169089A1 KR 2013005249 W KR2013005249 W KR 2013005249W WO 2013169089 A1 WO2013169089 A1 WO 2013169089A1
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WO
WIPO (PCT)
Prior art keywords
voltage
current
average
spark
dust collecting
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2013/005249
Other languages
English (en)
Korean (ko)
Inventor
김명수
유봉수
강희천
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WOONAM INDUSTRIAL Co Ltd
WOONAM R&D CO Ltd
Original Assignee
WOONAM INDUSTRIAL Co Ltd
WOONAM R&D CO Ltd
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
Application filed by WOONAM INDUSTRIAL Co Ltd, WOONAM R&D CO Ltd filed Critical WOONAM INDUSTRIAL Co Ltd
Publication of WO2013169089A1 publication Critical patent/WO2013169089A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/74—Cleaning the electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/66—Applications of electricity supply techniques
    • B03C3/68—Control systems therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/24—Details of magnetic or electrostatic separation for measuring or calculating of parameters, e.g. efficiency

Definitions

  • the present invention relates to an apparatus and method for determining a dust collecting plate cleaning time, and more particularly, to an apparatus and method for determining the dust collecting plate cleaning time using a change in voltage or current or sparks when excessive dust is accumulated in the dust collecting plate. .
  • the cleaning time is determined based on the driver's experience or by sensing the voltage or current values according to the dust amount of the dust collecting plate using a sensor, Since an additional device such as a sensor must be used, there is a problem that excessive installation cost is required.
  • the cleaning state of the dust collecting plate can be determined using at least one of the average voltage and the average current of the high voltage generator without providing a separate sensor on the discharge plate and the dust collecting plate, the structure is simple and more accurate.
  • a dust collecting plate cleaning time determining device capable of determining a cleaning time and a method thereof.
  • the present invention provides a more accurate and error-free cleaning time determination device and method by measuring the number of sparks generated during dust collection and determining the cleaning time according to the number of sparks.
  • the dust collector for collecting the contaminants: an electrical detector for detecting at least one of the voltage and current of the high voltage generator; An average voltage / current calculator configured to calculate at least one of an average voltage and an average current from at least one of a voltage and a current detected by the electrical detector during a preset period; And a cleaning time determiner configured to determine whether at least one of the average voltage and the average current calculated by the average voltage / current calculator exceeds at least one of a preset reference voltage and a reference current. It may include.
  • the cleaning time determining unit may determine whether at least one of the average voltage and the average current exceeds at least one of the reference voltage and the reference current once or a predetermined number of times. have.
  • the electric detection unit inputs a signal output through a high voltage voltage distribution circuit in the high voltage generator to an analog to digital converter (ADC) via a signal control circuit. It may include a voltage measuring unit for measuring the voltage.
  • ADC analog to digital converter
  • the electrical detection unit via a signal control circuit for outputting a signal output through a current feedback sense resistor (Current feedback sense resistor) connected between the high voltage back-up circuit and the high voltage transformer in the high voltage generator. It may include a current measuring unit for measuring the current after input to the analog to digital converter (ADC).
  • ADC analog to digital converter
  • the electrical detection unit for detecting at least one of the voltage and current of the high voltage generator;
  • a spark detector for detecting whether a spark is generated by using at least one of a voltage and a current of the high voltage generator;
  • a cleaning time determining unit determining whether the number of occurrences of the spark detected by the spark detector for a predetermined period exceeds a predetermined reference number. It may include.
  • the spark detector may include: when the number of times that the current detected by the electrical detector increases more than a preset value and the voltage decreases below the preset value exceeds the preset number of times, It can be judged that it occurred.
  • One aspect of an embodiment of a method for determining a dust collecting plate cleaning time may include: detecting, by an electrical detector, at least one of a voltage and a current of a high voltage generator; Calculating, by the average voltage / current calculating unit, at least one of the average voltage and the average current from at least one of the voltage and the current detected from the electrical detector for a predetermined time; And a cleaning time determining unit determining whether at least one of the average voltage and the average current calculated by the average voltage / current calculating unit exceeds at least one of a preset reference voltage and a reference current. It may include.
  • the cleaning state of the dust collecting plate can be determined using at least one of the average voltage and the average current of the high voltage generator without installing a separate sensor on the discharge plate and the dust collecting plate, the structure at low cost, It is possible to determine the cleaning time more simply and more accurately.
  • 1 is a view for explaining the structure of the dust collecting plate and the dust accumulation structure.
  • Figure 2 is a block diagram showing the configuration of a dust collecting plate cleaning time determining apparatus according to an embodiment of the present invention.
  • Figure 3 is a block diagram showing the configuration of a dust collecting plate cleaning time determining apparatus according to another embodiment of the present invention.
  • FIG. 4 is a view for explaining the configuration for measuring the voltage in accordance with an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a voltage waveform at the time of spark generation according to an embodiment of the present invention.
  • FIG. 6 is a view for explaining a configuration for measuring the current in accordance with an embodiment of the present invention.
  • FIG. 7 is a diagram showing a current waveform at the time of spark generation according to an embodiment of the present invention.
  • FIG. 8 is a view for explaining an arrangement for detecting spark generation according to an embodiment of the present invention.
  • FIG. 9 is a flowchart illustrating a method of determining a dust collecting plate cleaning time according to an embodiment of the present invention.
  • 1 is a view for explaining the structure of the dust collecting plate and the dust accumulation structure.
  • the discharge hole 120 may be filtered.
  • the discharge hole 120 may be filtered.
  • a high voltage is applied in the high voltage generator
  • a positive potential is applied to the discharge plate 140
  • a negative potential is applied to the dust collecting plate 150.
  • an ionization field is formed between the discharge plate 140 and the dust collecting plate 150, and when the particles of the polluted air sucked by the operation of the blower 130 reach the ionizing field, dust particles having a positive potential are negative.
  • Air collected in the dust collecting plate 150 having electric potential and dust free is discharged to the discharge port 120 by the operation of the blower 130.
  • a spark occurs when the polluted air particles of a positive potential are collected in the dust collecting plate 150 of a negative potential, and a change in voltage or current occurs in this process. Therefore, it is possible to determine whether the average voltage or current is different from the preset reference value by calculating the average voltage or current for a predetermined time, and to repeat the above process one or more times to determine the cleaning time.
  • FIG. 2 is a block diagram showing the configuration of a dust collecting plate cleaning time determining apparatus according to an embodiment of the present invention.
  • the dust collecting plate cleaning time determining apparatus includes an electric detector 220, an average voltage / current calculator 230, and a cleaning time determiner 240.
  • the electrical detector 220 may detect at least one of a voltage and a current of the high voltage generator 210.
  • the electrical detector 220 detects at least one of the voltage and the current of the high voltage generator 210 to detect a change in at least one of the voltage and the current of the high voltage generator 210 in real time.
  • a change in at least one of the voltage and the current of the high voltage generator 210 may be used as basic data for determining the degree of contamination of the dust collecting plate, for example, the amount of pollutant attached to the dust collecting plate.
  • the electrical detector 220, at least one of the voltage measuring unit 221 for measuring the voltage of the high voltage generator 210 and the current measuring unit 222 for measuring the current of the high voltage generator 210 may include.
  • the voltage measuring unit 221 may input a signal output through a high voltage voltage distribution circuit in a high voltage generator to an A / D converter (ADC) through a signal control circuit and measure a voltage.
  • the current measuring unit 222 transmits a signal output through a current feedback sense resistor connected between the high voltage back-up circuit and the high voltage transformer in the high voltage generator to the A / D converter through a signal control circuit. After inputting to digital converter, ADC, current can be measured.
  • Figure 4 is a view for explaining the configuration for measuring the voltage in accordance with an embodiment of the present invention
  • Figure 5 is a diagram showing a voltage waveform at the time of spark generation according to an embodiment of the present invention.
  • the voltage detection from the high voltage generator 210 may use a high voltage voltage divider 401.
  • the high voltage voltage divider 401 may be implemented in the high voltage generator 210.
  • the electrostatic precipitator controller 420 may receive a signal (eg, 0 to 10V) output from the output pin of the high voltage generator 210.
  • the signal received by the electrostatic precipitator controller 420 may be converted into a voltage level for input into a microcontroller (Analog to digital converter) 422 in a signal conditioning circuit 421.
  • the signal converted by the signal conditioning circuit 421 may be input to the ADC 422 to measure a voltage.
  • the ADC 422 to measure a voltage.
  • FIG. 6 is a view for explaining a configuration for measuring the current in accordance with an embodiment of the present invention
  • Figure 7 is a diagram showing a current waveform at the time of spark generation according to an embodiment of the present invention.
  • a current feedback sense resistor 401 may be used for current detection.
  • the current feedback detection resistor 401 may be implemented in the high voltage generator 210.
  • the current feedback detection resistor 401 measures the current by converting it into a voltage without directly using the current.
  • a signal (ex. 0 to 5V) output from the output pin of the high voltage generator 210 receives the signal from the electrostatic precipitator controller 420 and the signal control circuit (Signal)
  • the microcontroller may convert the voltage to a voltage level for input to an analog-to-digital converter (ADC).
  • ADC analog-to-digital converter
  • the signal converted by the signal conditioning circuit 421 may be input to the ADC 422 to measure a voltage.
  • the voltage measured by the ADC 422 may be converted into a current again.
  • the ADC 422 by detecting a change in the current measured by the ADC 422, it is possible to detect whether the dust collector is excessively accumulated.
  • the pollutant is excessively accumulated in the dust collecting plate, a spark is generated, and thus the voltage measured by the ADC 422 may be changed as shown in FIG. 5.
  • the average voltage / current calculator 230 may calculate at least one of the average voltage and the average current from at least one of the voltage and the current of the predetermined period detected by the electrical detector 220. have. That is, since the instantaneous voltage or the instantaneous current detected by the electrical detector 220 may be somewhat inaccurate due to a measurement error or the like, the average voltage / current calculator 230 may select at least one of the average voltage and the current. By calculating, it is possible to compensate for the occurrence of a measurement error or the like.
  • the cleaning time determiner 240 when a predetermined time has elapsed since the dust collector is driven, and at least one of the average voltage and the average current exceeds at least one of the reference voltage and the reference current, the excess time.
  • the timing can be determined as the cleaning timing of the dust collecting plate. That is, at least one of the average voltage and the average current may have a different value from at least one of the average voltage and the average current during normal operation during the initial driving time after the dust collector is driven. At least one of the later average voltage and the average current is compared with at least one of the reference voltage and the reference current to determine whether it is exceeded. In this case, at least one of the reference voltage and the reference current may be arbitrarily set by the administrator in consideration of at least one value of the average voltage and the current when the dust collector is not piled up excessively and is operating normally.
  • the reference voltage i.e., the average voltage value during a predetermined time period (ex. 5 seconds) in which the pollutant is not excessive
  • the average voltage value measured during the dust collector operation is 8V
  • the measured average voltage value is large, it can be determined that there are too many contaminants on the current collecting plate.
  • at least one of the average voltage and the average current repeatedly compares at least one of the reference voltage and the reference current with the reference voltage or the current one or more times, such as a predetermined number of times (eg, five times). If it is determined that the excess is exceeded, it can be determined that the time point is the cleaning time of the dust collecting plate.
  • FIG. 3 is a block diagram showing the configuration of a dust collecting plate cleaning time determining apparatus according to another embodiment of the present invention. A configuration that performs the same role as the configuration described in FIG. 2 will be omitted.
  • the dust collecting plate cleaning time determining device detects at least one of the voltage and the current of the high voltage generator, and generates a spark by using at least one change of the voltage and the current of the high voltage generator.
  • the spark detecting unit 330 detects the occurrence of sparks by paying attention to the occurrence of the sparks, thereby determining whether the contaminants are excessively attached to the dust collecting plate.
  • the spark detector 330 may use a change in at least one of voltage and current to detect spark occurrence. For example, when the number of times that the current increases more than the preset value and the voltage decreases below the preset value exceeds the preset number, it may be determined that the spark has occurred.
  • FIG 8 is a view for explaining a configuration for detecting spark generation according to an embodiment of the present invention.
  • the voltage and current detection circuits described with reference to FIGS. 4 and 6 may be used to detect sparks. Spark can be detected using voltage or current. For example, a signal relating to voltage or current is input to a comparator 423 of the electrostatic precipitator controller, and when the signal input from the comparator 423 is higher or lower than a preset reference voltage, a spark is generated. I can recognize it. When the occurrence of the spark is detected a plurality of times during a predetermined time, it may be determined that there is an excessive amount of contaminants in the dust collecting plate, and for this purpose, the number of occurrences of the spark may be counted through the counter 424.
  • the occurrence of the spark may be determined through various methods such as determining that the spark has occurred.
  • the cleaning time determiner 240 may determine the cleaning time in consideration of the number of occurrences of sparks and the like. For example, when the number of sparks generated for a predetermined period (ex. 10 seconds) exceeds the preset reference number (five times), it may be determined that the spark has occurred. In other words, even if the pollutants are not accumulated excessively, sparks may occur due to various reasons such as malfunction of the equipment. can do.
  • FIG. 9 is a flowchart illustrating a method of determining a dust collecting plate cleaning time according to an embodiment of the present invention.
  • a dust collector is driven and an initial value may be set (910, 920).
  • the dust collector may be driven after setting the initial value.
  • the set initial value may include various values such as a variable for counting the number of occurrences of the spark (eg, a spark counting variable n), a reference current, and a reference voltage.
  • a dust collecting operation is substantially performed by driving the dust collector.
  • the dust collecting operation is performed in step 930, at least one of an average voltage and an average current is calculated for a predetermined period. 940)
  • step 940 it is determined whether the average voltage / current calculated in step 940 is greater than the preset reference voltage / current. If it is determined not to be repeated, steps 930 to 950 are repeated.
  • step 950 If it is determined in step 950 that the average voltage / current is greater than the preset reference voltage / current, it is determined that spark has occurred and the spark counting variable n, which is initially set, is increased by one (960).
  • step 970 it is determined whether the spark counting variable n value increased in step 960 reaches a predetermined number (ex. 5). If it is determined that it has reached, it is determined that the dust collecting plate cleaning time has arrived (980). However, if it is determined in step 970 that the spark counting variable n value does not reach a predetermined number, steps 930 to 970 are performed again. Repeat it.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electrostatic Separation (AREA)
PCT/KR2013/005249 2012-05-07 2013-06-15 Dispositif de détermination du temps de nettoyage de plaque de collecte de poussière et procédé pour celui-ci Ceased WO2013169089A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020120048185A KR101190623B1 (ko) 2012-05-07 2012-05-07 집진판 청소시기 판별장치 및 그 방법
KR10-2012-0048185 2012-05-07

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WO2013169089A1 true WO2013169089A1 (fr) 2013-11-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949579A (zh) * 2015-03-23 2017-07-14 广东美的制冷设备有限公司 集尘组件、空气净化装置及空调器

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105855059A (zh) * 2016-05-30 2016-08-17 广东美的制冷设备有限公司 集尘清洁装置、电器设备及集尘清洁方法
KR102339392B1 (ko) * 2017-05-19 2021-12-15 엘지전자 주식회사 공기조화기
JP6527554B2 (ja) * 2017-06-22 2019-06-05 本田技研工業株式会社 非接触電力伝送システム
CN114165892B (zh) * 2021-12-15 2022-09-06 珠海格力电器股份有限公司 一种空气净化器清洁提示方法、装置及空气净化器
KR20230125554A (ko) * 2022-02-21 2023-08-29 삼성전자주식회사 전자 장치 및 그 제어 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960036419U (ko) * 1995-05-31 1996-12-16 공기청정기의 집진판 청소시기 표시장치
KR200216600Y1 (ko) * 1996-12-26 2001-04-02 이구택 저항 검출법을 이용한 먼지레벨 측정장치
KR200377890Y1 (ko) * 2004-12-23 2005-03-14 주식회사세모 공기청정기 전기집진장치의 청소시기 통보장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960036419U (ko) * 1995-05-31 1996-12-16 공기청정기의 집진판 청소시기 표시장치
KR200216600Y1 (ko) * 1996-12-26 2001-04-02 이구택 저항 검출법을 이용한 먼지레벨 측정장치
KR200377890Y1 (ko) * 2004-12-23 2005-03-14 주식회사세모 공기청정기 전기집진장치의 청소시기 통보장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949579A (zh) * 2015-03-23 2017-07-14 广东美的制冷设备有限公司 集尘组件、空气净化装置及空调器
CN106949579B (zh) * 2015-03-23 2019-05-31 广东美的制冷设备有限公司 集尘组件、空气净化装置及空调器

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