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Patent Searching and Data


Title:
DISCHARGE ELECTRODE OF ELECTROSTATIC PRECIPITATOR FOR TREATING DIESEL ENGINE EXHAUST GAS
Document Type and Number:
WIPO Patent Application WO/2016/199652
Kind Code:
A1
Abstract:
Provided is a discharge electrode such that, even if there is an increase in the outer diameter of a trapping tube of a tubular trapping part of an electrostatic precipitator for treating diesel engine exhaust gas, the placement of electrode needles relative to a primary electrode can be set appropriately at a prescribed density, the electrode needles can be reduced in weight and maintained in shape, and the discharge electrode is effective in high-temperature countermeasures. The invention is characterized in having a tubular trapping part that comprises a primary electrode and a discharge electrode for electrifying particulate matter contained in exhaust gas of a diesel engine that uses heavy oil, and a dust-collecting electrode for trapping the electrified particulate matter; the discharge electrode of the diesel engine exhaust gas treatment device, in which tubular trapping modules short in axial length and differing in diameter are disposed in a plurality of levels in the tubular trapping part, being configured such that short discharge electrode needles or low-height saw-blade-shaped discharge electrode plates are radially arranged on the outer periphery of a cylindrical discharge electrode support pipe mounted on the outer periphery of the primary electrode.

Inventors:
FURUGEN Munekatsu (1-26, Satsukigaoka Nishinomiya-sh, Hyogo 75, 〒6620875, JP)
MAKINO Tadashi (5-1 Takamidai, Takatsuki-shi Osaka, 20, 〒5691020, JP)
TAKIKAWA Kazunori (1-1-402 Sanmaibashi-cho, Numazu-shi Shizuoka, 37, 〒4100037, JP)
Application Number:
JP2016/066293
Publication Date:
December 15, 2016
Filing Date:
June 01, 2016
Export Citation:
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Assignee:
USUI KOKUSAI SANGYO KAISHA, LTD. (131-2 Nagasawa, Shimizu-cho Sunto-gu, Shizuoka 10, 〒4118610, JP)
International Classes:
B03C3/49; B03C3/40; B03C3/41; F01N3/01
Foreign References:
JPS51118167A1976-10-16
JP2012107556A2012-06-07
JP2014238086A2014-12-18
US20040025497A12004-02-12
Attorney, Agent or Firm:
OSHIDA Yoshitaka (Ginza Bldg, 3-12 Ginza 3-chome, Chuo-k, Tokyo 61, 〒1040061, JP)
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