• 제목, 요약, 키워드: Electrostatic precipitator

검색결과 180건 처리시간 0.046초

Design and Experiment of an Electromagnetic Vibration Exciter for the Rapping of an Electrostatic Precipitator

  • Kim, Je-Hoon;Kim, Jin-Ho;Jeong, Sang-Hyun;Han, Bang-Woo
    • Journal of Magnetics
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    • v.17 no.1
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    • pp.61-67
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    • 2012
  • The miniaturization of an electrostatic precipitator has become a key element in successfully constructing an efficient electrostatic precipitator because of the limited space allowed for installation in a subway tunnel. Therefore, the miniaturization of the rapping system of the electrostatic precipitator has also become important. This research proposes a resonant-type electromagnetic vibration exciter as a vibrating rapper for an electrostatic precipitator. The compact vibrating rapper removes collected dust from the collecting plates without direct impact on those collecting plates. To characterize the dynamic performance of the electromagnetic vibration exciter, finite element analysis was performed using a commercial electromagnetic analysis program, MAXEWLL. Moreover, we analyzed the resonant frequency of an electrostatic precipitator, to which the electromagnetic vibration exciter was applied, by ANSYS. Also, to measure the acceleration generated by the electromagnetic vibration exciter, we manufactured a prototype of the ESP and electromagnetic vibration exciter and measured its acceleration at the resonant frequency.

전기집진기 Layout 설계를 위한 소프트웨어 개발 (Development of the Software for Layout Design of Elecrostatic Precipitator)

  • 조현덕
    • 한국생산제조학회지
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    • v.6 no.1
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    • pp.100-108
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    • 1997
  • Electrostatic precipitator is the equipment that separates dust particles from the gas in which they are suspended. Specially, for the construction of industrial electrostatic precipitator, the corporations would send the layout design to a customer to accept an order. Therefore, it is made a detail drawing after accept ance. Since the layout design of electrostatic precipitator is very complex, it takes time and design errors are included. Thus, for competitiveness in these industries, the development of software for the layout design of electrostatic precipitator is important. In this study, the developed software deals with technical concept and layout design of industrial electrostatic precipitator. By using the software, design time was very short, design errors reduced largely, and the standardization of design could be carried out.

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나선 스파이크 전기집진기 내 유동 및 집진 현상에 대한 전기수력학 수치해석 연구 (A NUMERICAL ANALYSIS ON ELECTROHYDRODYNAMICS (EHD) OF THE FLOW AND THE COLLECTION MECHANISMS INSIDE AN ELECTROSTATIC PRECIPITATOR WITH A SPIRAL SPIKE ELECTRODE)

  • 이상혁;허남건
    • 한국전산유체공학회지
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    • v.13 no.4
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    • pp.58-65
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    • 2008
  • In the present study, a numerical analysis on electrohydrodynamics (EHD) of the flow and the collection mechanisms inside a electrostatic precipitator with a spiral spike electrode were investigated. The phenomena of the electrostatic precipitator include complex interactions between the electric field, the fluid flow and the particle motion. To validate the numerical method, the numerical computation for the electric field of a simple wire-pipe type electrostatic system having an analytic solution were performed. Using this numerical method, the electric field of the spiked electrostatic precipitator was simulated. And the fluid flow and the particle motion inside the spiked electrostatic precipitator were numerically analyzed.

전기집진기 내 유동 및 집진 현상에 대한 전기수력학 수치해석 연구 (A NUMERICAL ANALYSIS ON ELECTROHYDRODYNAMICS (EHD) OF THE FLOW AND THE COLLECTION MECHANISMS INSIDE A ELECTROSTATIC PRECIPITATOR)

  • 이상혁;허남건
    • 한국전산유체공학회:학술대회논문집
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    • pp.276-282
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    • 2008
  • In the present study, a numerical analysis on electrohydrodynamics (EHD) of the flow and the collection mechanism inside a electrostatic precipitator were investigated. The phenomena of the electrostatic precipitator include complex interactions between the electric field, the fluid flow and the particle motion. To validate the numerical method, the numerical computation for the electric field of a simple wire-pipe type electrostatic system having an analytic solution were performed. Using this numerical method, the electric field of the spiked electrostatic precipitator was simulated. And the fluid flow and the particle motion inside the spiked electrostatic precipitator were numerically analyzed.

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전기집진기 내 유동 및 집진 현상에 대한 전기수력학 수치해석 연구 (A NUMERICAL ANALYSIS ON ELECTROHYDRODYNAMICS (EHD) OF THE FLOW AND THE COLLECTION MECHANISMS INSIDE A ELECTROSTATIC PRECIPITATOR)

  • 이상혁;허남건
    • 한국전산유체공학회:학술대회논문집
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    • pp.276-282
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    • 2008
  • In the present study, a numerical analysis on electrohydrodynamics (EHD) of the flow and the collection mechanism inside a electrostatic precipitator were investigated. The phenomena of the electrostatic precipitator include complex interactions between the electric field, the fluid flow and the particle motion. To validate the numerical method, the numerical computation for the electric field of a simple wire-pipe type electrostatic system having an analytic solution were performed. Using this numerical method, the electric field of the spiked electrostatic precipitator was simulated. And the fluid flow and the particle motion inside the spiked electrostatic precipitator were numerically analyzed.

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전기집진기 설계소프트웨어 개발 (Development of Software for Electrostatic Precipitator Design)

  • 조현덕;박기서;양민양
    • 한국정밀공학회:학술대회논문집
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    • pp.429-433
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    • 1994
  • Electrostatic precipitator is the equipment that separates dust particles from the gas in which they are susponded. Specially, in establishing industrial electrostatic precipitatior, corparations would send to a customer technical papers to accept an order. And, they design detail drawing after accept an order. Then, since the basic technical design of electrostatic precipitator is very complex, it takes long time. Thus, for competitiveness in these industries, the developement of software about technical design is important. In this study, the developed software is called 'KOCO', the simpler form for KOrea Cottrell Co. Ltd., deals with a basic technical design of industrial electrostatic precipitator. From using the software, design time was veryshort, design errors reduced largely, and the standardization of design could be carried out.

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Demonstration of a Modular Electrostatic Precipitator to Control Particulate Emissions from a Small Municipal Waste Incinerator

  • Intra, Panich;Yawootti, Artit;Tippayawong, Nakorn
    • Journal of Electrical Engineering and Technology
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    • v.9 no.1
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    • pp.239-246
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    • 2014
  • Incineration is conceptually sound as a waste treatment technology. There is, however, concern over its emissions when it is improperly designed and operated. An electrostatic precipitator is one of the most commonly used devices to control particulate emissions from boilers, incinerators and some other industrial processes. In this work, a modular electrostatic precipitator with sizing of $1m{\times}1m{\times}1m$ was developed for removal of particulate matter from the exhaust gases of a small waste incinerator. Its design was based on a simple wire-and-plate concept. The corona discharge wires were connected to a positive high-voltage pulse generator, while the collection plates were grounded. The high-voltage pulse generator was used to produce the corona discharge field between the individual discharge wire and the collection plate. The particulate-laden exhaust gas flow was directed across the corona discharge field. The charged particles were deflected outward and collected on the plate. The collection efficiency was evaluated as a mass loading ratio between the difference at the inlet and the outlet to the particulate loading at the inlet of the precipitator. The collection efficiency of this modular electrostatic precipitator design was approximately 80 %.

An Experimental Study for Designing Electrostatic Precipitator: Focused on Collection Efficiency Variation per Area and corona Power

  • Kim, Jong-Ho;Cho, Yong-Kyun;Bong, Choon-Keun;Yun, Joong-Sup;Kim, Shin-Do
    • Journal of Korean Society for Atmospheric Environment
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    • v.16 no.E2
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    • pp.79-84
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    • 2000
  • The Electrostatic Precipitator is one of the most favorable device of particulate control systems because of the relatively higher collection efficiency and easier operation/maintenance. However, it requires very high initial coat especially for discharging electrodes and collecting plates. In dealing with such problems, development of optimum design can be one of the solutions. In this study, a bench-scale electrostatic precipitator was operated in terms of collection area and corona power, and its performances were analyzed focusing on collection efficiency. A result of this study, a more advanced approach for designing cost-effective precipitator by promoting corona power at a minimized collection area was proposed.

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Fly ash 분급기(分級機)로서 화력발전소(火力發電所) 전기집진기(電氣集塵機)의 활용(利用) (Utilization of Electrostatic Precipitator as Fly ash Classifier)

  • 이승헌
    • 자원리싸이클링
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    • v.19 no.2
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    • pp.3-9
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    • 2010
  • 대부분의 화력발전소에서 전기집진기의 각각의 호파에서 포집된 fly ash는 하나의 라인으로 수송되어 fly ash 원분 사이로에 저장된다. 필요량은 분급장치에 공급되어 기류식 분급기에 의해 정제회와 조분으로 분리되어 각각의 사이로 등에 저장된다. 그러나 전기집진기의 호파에 포집된 fly ash는 전기집진기의 후단 호파일수록 비표면적이 커지는 등 fly ash의 성질이 다르므로 전기집진기 호파 위치 자체가 분급 효과가 있는 것으로 생각할 수 있다. 본 연구는 화력발전소의 전기집진기 각각의 호파에서 채취한 fly ash의 물리적, 화학적, 광물학적 성질을 조사하여 전기집진기가 분급기로서의 가능성을 검토하였다. 그 결과 새로운 fly ash 분급 프로세스로 전기집진기의 호파의 위치별 채취를 제안하고 분급능력이 있다는 것을 확인하였다. 그리고 기류식 분급기로는 얻을 수 없는 고품질 fly ash를 획득하는 것도 가능하였다.

전기 집진기에서의 Submicron 입자의 집진 특성에 관한 연구-I. 전기적 특성 (A Study on the Collection Characteristics of Submicron Particles in an Electrostatic Precipitator - I. Electrical Characteristics)

  • 김용진;황태근;유주식
    • 설비공학논문집
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    • v.13 no.7
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    • pp.572-578
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    • 2001
  • This study conducts a laboratory measurement on a cylindrical electrostatic precipitator(ESP) with a 30mm-diameter cylinder. Several kinds of test aerosols are generated with an atomizer and a diffusion dryer. The effects of applied voltage, flow state, gas velocity, and gas temperature on the electrical characteristics of the precipitator and onset of corona are experimentally investigated. The corona onset voltage is decreased, as diameter of discharge electrode wire becomes small or temperature of the precipitator increases. As the fluid velocity or particle load in the precipitator increases, the corona current is decreased.

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