JPS57201550A - Electrical dust precipitator - Google Patents

Electrical dust precipitator

Info

Publication number
JPS57201550A
JPS57201550A JP8536081A JP8536081A JPS57201550A JP S57201550 A JPS57201550 A JP S57201550A JP 8536081 A JP8536081 A JP 8536081A JP 8536081 A JP8536081 A JP 8536081A JP S57201550 A JPS57201550 A JP S57201550A
Authority
JP
Japan
Prior art keywords
electrodes
discharge
contacts
switch
dust
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.)
Pending
Application number
JP8536081A
Other languages
Japanese (ja)
Inventor
Akio Akasaka
Sadao Shibuya
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.)
Hitachi Plant Construction Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Plant Construction Co Ltd
Hitachi Plant Engineering and Construction 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 Hitachi Plant Construction Co Ltd, Hitachi Plant Engineering and Construction Co Ltd filed Critical Hitachi Plant Construction Co Ltd
Priority to JP8536081A priority Critical patent/JPS57201550A/en
Publication of JPS57201550A publication Critical patent/JPS57201550A/en
Pending legal-status Critical Current

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  • Electrostatic Separation (AREA)

Abstract

PURPOSE: To improve the dust precipitation efficiency of dusts having high specific electric resistance with simple constitution in a device of generating electric discharge between a discharge electrode and collecting electrodes with a DC voltage, by inverting the polarities of the DC voltage when the discharge current attains a value higher than the set value.
CONSTITUTION: When respective movable contacts 3C, 4C of a duplex switch 5 are connected respectively to fixed contacts 3A, 4A, the anode and cathode of a DC electric power source are connected to a discharge electrode 1 and dust collecting electrodes 2, respectively, whereby corona discharge is generated between both electrodes. The dusts in gases flowed in this area are captured on the electrodes 2. When the discharge current between both electrodes increases gradually and the detected value of a device 6 exceeds the set value of a comparator 7, a switch driving device 8 is driven by the output thereof, and connects the contacts 3C, 4C of the switch to fixed contacts 3B, 4B, respectively. The cathode and anode of the DC power source are connected respectively to the electrodes 1, 2 by this, and the electric charges on the surface of the dust layers deposited on the electrodes 2 are neutralized gradually. Thereafter, the similar stages are repeated.
COPYRIGHT: (C)1982,JPO&Japio
JP8536081A 1981-06-03 1981-06-03 Electrical dust precipitator Pending JPS57201550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8536081A JPS57201550A (en) 1981-06-03 1981-06-03 Electrical dust precipitator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8536081A JPS57201550A (en) 1981-06-03 1981-06-03 Electrical dust precipitator

Publications (1)

Publication Number Publication Date
JPS57201550A true JPS57201550A (en) 1982-12-10

Family

ID=13856538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8536081A Pending JPS57201550A (en) 1981-06-03 1981-06-03 Electrical dust precipitator

Country Status (1)

Country Link
JP (1) JPS57201550A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203656A (en) * 1983-05-02 1984-11-17 Hitachi Plant Eng & Constr Co Ltd Electric dust collecting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203656A (en) * 1983-05-02 1984-11-17 Hitachi Plant Eng & Constr Co Ltd Electric dust collecting apparatus

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