針付ロッド型放電極をもつ電気集じん装置 : コロナ電流密度分布による電極形状の決定

概要

論文の詳細を見る
It is considered that ionic wind (IW) in electrostatic precipitator (EP) has much influence on collecting dust. Characteristics of IW closely depend on the voltage-current relation in EP and the current distribution on the collecting electrode. The research about IW and current distribution in the same gap distance as that of the practical EP has never been reported yet. This paper is a report on the basic research for the study of IW in model EP which has a multi-rod discharge electrode with some projections. In our expriment, the number of rods and projections of discharge is increased in every experiment so as to check for the effect of rods and projections on discharging characteristics. The mian results are summarised as follows; (1) In our all experiments, the square root of the corona current is in proportion to applied voltage and is inverse to the square root of the gap distance. (2) The corona current is distributed elliptically on the collecting electrode. Therefore, the dead space, where no corona current exists, arises. (3) Accordingito the consideration for the current distrbution, it is found that the best electrode arrangement is that both the distance between projections on the rod and the distance between the rcds are equal to 60 mm.
山口大学の論文