公开(公告)号：US20150226427A1

公开(公告)日：2015-08-13

申请号：US14426714

申请日：2013-09-04

Applicant: TASSU ESP OY

Inventor： Ari Laitinen ,  Mika Räihä ,  Seppo Paavilainen ,  Jorma Keskinen

IPC: F23J15/02 ,  B03C3/45 ,  B03C3/74 ,  B03C3/41

CPC classification number: F23J15/022 ,  B03C3/06 ,  B03C3/12 ,  B03C3/38 ,  B03C3/41 ,  B03C3/45 ,  B03C3/49 ,  B03C3/743 ,  B03C2201/08 ,  B03C2201/30 ,  F23J2217/102

Abstract: A method for collecting fine particles from flue gases onto selected collector surfaces includes leading the flue gases from a combustion chamber to a selected chamber that is part of a flow channel of the flue gasses. The selected channel is delimited by walls presenting the selected collector surfaces. Gas ions are formed with aid of a corona discharge of an ion source inside the selected chamber. The ion source includes a separate body relative to the selected chamber that is electrically passive and contains a corona electrode maintained at a high-voltage relative to the collector surfaces. The selected collector surfaces form a counter potential to the high voltage of the corona electrode. The gas ions are led to the selected chamber and mixed with the flue gases to charge the fine particles in the flue gas which are collected on the selected collector surfaces.

Abstract translation: 用于将烟道气中的细颗粒收集到选定的收集器表面上的方法包括将烟道气从燃烧室引导到选定的室，该室是烟道气的流动通道的一部分。 所选通道由呈现选定的收集器表面的墙界定。 借助于所选择的室内的离子源的电晕放电来形成气体离子。 离子源包括相对于被选择的室的分离的主体，其被电动被动并且包含相对于收集器表面保持在高电压的电晕电极。 所选择的集电极表面形成电晕电极的高电压的反电位。 将气体离子引导到所选择的室并与烟道气混合以对收集在所选择的收集器表面上的烟道气中的细颗粒进行充电。

公开(公告)号：US20190270094A1

公开(公告)日：2019-09-05

申请号：US16367096

申请日：2019-03-27

Applicant: TASSU ESP OY

Inventor： Ari LAITINEN ,  Mika RÄIHÄ ,  Seppo PAAVILAINEN ,  Jorma KESKINEN

IPC: B03C3/12 ,  F23J15/02 ,  B03C3/06 ,  B03C3/38 ,  B03C3/41 ,  B03C3/49 ,  B03C3/74

Abstract: A boiler includes a flow channel having a selected chamber delimited by walls made at least partly of conductive material and being grounded, and a device arranged at least partially inside the selected chamber. The device includes an ion source comprising a corona electrode and an electrically passive body having an opening for corona discharge. The corona electrode is located inside the electrically passive body. A fan/shielding-gas connection is in the electrically passive body. The shielding gas exits the electrically passive body through the opening. The device also includes a high-voltage source for the corona electrode. The walls of the selected chamber of the boiler form a ground potential for the corona electrode to collect the fine particles of flue gases on the walls of the selected chamber.

公开(公告)号：US20190001345A1

公开(公告)日：2019-01-03

申请号：US16021316

申请日：2018-06-28

Applicant: Tassu ESP Oy

Inventor： Ari LAITINEN ,  Heikki SUHONEN ,  Seppo PAAVILAINEN ,  Jorma KESKINEN ,  Juha TIKKANEN

IPC: B03C3/38 ,  B03C3/47 ,  B03C3/41

Abstract: A gas cleaning apparatus includes: an ion source to provide an ion beam, a charging zone to form charged particles by exposing particles of a particle-laden gas to the ion beam, and a filter element to collect the charged particles, wherein the ion source includes a corona electrode to generate ions by a corona discharge, the ion source is arranged to form the corona discharge in a protective gas, and wherein the apparatus is arranged to form the ion beam by using an electric field to draw the generated ions from the corona discharge to the particle-laden gas.