Apparatus and method for purifying air
    1.
    发明授权
    Apparatus and method for purifying air 失效
    空气净化装置及方法

    公开(公告)号:US06607579B2

    公开(公告)日:2003-08-19

    申请号:US10039854

    申请日:2001-10-29

    IPC分类号: B03C3013

    CPC分类号: B03C3/16

    摘要: An apparatus for removing particles from air, including an inlet for receiving a flow of air, a first chamber in flow communication with the inlet, wherein a charged spray of semi-conducting fluid droplets having a first polarity is introduced to the air flow so that the particles are electrostatically attracted to and retained by the spray droplets, and an outlet in flow communication with the first chamber, wherein the air flow exits the apparatus substantially free of the particles. The first chamber of the apparatus further includes a collecting surface for attracting the spray droplets, a power supply, and a spray nozzle connected to the power supply for receiving fluid and producing the spray droplets therefrom. The apparatus may also include a second chamber in flow communication with the inlet at a first end and the first chamber at a second end, wherein particles entrained in the air flow are charged with a second polarity opposite the first polarity prior to the air flow entering the first chamber. The second chamber of the apparatus further includes a power supply, at least one charge transfer element connected to the power supply for creating an electric field in the second chamber, and a ground element associated with the second chamber for defining and directing the electric field, wherein the air flow passes between the charge transfer element and the ground element.

    摘要翻译: 一种用于从空气中除去颗粒的装置,包括用于接收空气流的入口,与入口流动连通的第一室,其中带有第一极性的半导电液滴的带电喷雾被引入空​​气流,使得 颗粒被静电吸引并被喷雾液滴保持,以及与第一室流动连通的出口,其中空气流离开设备基本上没有颗粒。 设备的第一室还包括用于吸引喷雾液滴的收集表面,电源和连接到电源的喷嘴,用于接收流体并从其产生喷雾液滴。 该装置还可以包括在第一端处与入口流动连通的第二室和在第二端处的第一室,其中夹带在空气流中的颗粒在气流进入之前以与第一极性相反的第二极性被充电 第一个房间 该设备的第二室还包括电源,连接到电源的至少一个电荷转移元件,用于在第二室中产生电场,以及与第二室相关联的用于限定和引导电场的接地元件, 其中气流在电荷转移元件和接地元件之间通过。

    Composition apparatus and method for flue gas conditioning
    2.
    发明授权
    Composition apparatus and method for flue gas conditioning 有权
    烟气调理成分装置及方法

    公开(公告)号:US06267802B1

    公开(公告)日:2001-07-31

    申请号:US09335428

    申请日:1999-06-17

    IPC分类号: B03C3013

    CPC分类号: B03C3/013

    摘要: The method and apparatus of the present invention are directed to conditioning particulate-containing gas streams using novel additives. The additive is an organometallic salt, preferably of a carboxylic acid, that decomposes in the gas stream to produce mobile metal compounds that significantly reduce the resistivity of the particles. The additive is particularly effective under hot-side conditions when used to condition particles to be collected by an electrostatic precipitator.

    摘要翻译: 本发明的方法和装置涉及使用新型添加剂来调节含颗粒的气流。 添加剂是优选羧酸的有机金属盐,其在气流中分解以产生显着降低颗粒电阻率的活性金属化合物。 当用于调节通过静电除尘器收集的颗粒时,添加剂在热侧条件下特别有效。

    Electrostatic method and means for removing contaminants from gases
    3.
    发明授权
    Electrostatic method and means for removing contaminants from gases 失效
    用于从气体中去除污染物的静电方法和方法

    公开(公告)号:US06224653B1

    公开(公告)日:2001-05-01

    申请号:US09222072

    申请日:1998-12-29

    IPC分类号: B03C3013

    摘要: An electrical apparatus includes a reaction chamber. A stream of contaminated gasses flows through the chamber. An elongated coronating electrode is positioned in the reaction chamber for producing a corona discharge within the chamber. A multi-stage Fitch generator connected to the electrode produces a high level, rapidly pulsating voltage in the electrode. Controlled amounts of an inert gas or inert gas-air mixture are combined with the contaminated gases to provide a high concentration of inert gas in the reaction chamber. In the inert gas-enriched atmosphere, the pulsating corona discharge produces a high concentration of metastable intermediates that greatly increase the rate of chemical conversion of the contaminants. Switching circuitry allows the pulsating voltage output of the Fitch generator to be superimposed on a constant direct current voltage in the electrode, setting up an electrostatic field in the reaction chamber for removing conversion byproducts from the gas stream.

    摘要翻译: 电气设备包括反应室。 被污染的气体流经过室。 延长的加固电极位于反应室中,用于在室内产生电晕放电。 连接到电极的多级惠誉发生器在电极中产生高水平,快速脉动的电压。 将受控量的惰性气体或惰性气体 - 空气混合物与污染气体组合以在反应室中提供高浓度的惰性气体。 在惰性气体富集气氛中,脉动电晕放电产生高浓度的亚稳态中间体,大大提高了污染物的化学转化率。 开关电路允许将Fitch发生器的脉动电压输出叠加在电极中恒定的直流电压上,在反应室中设置静电场,以从气流中除去转化副产物。

    Oxidizing additives for control of particulate emissions

    公开(公告)号:US06797035B2

    公开(公告)日:2004-09-28

    申请号:US10245608

    申请日:2002-09-16

    IPC分类号: B03C3013

    CPC分类号: B03C3/025 B03C3/013 B03C3/08

    摘要: The present invention discloses a process for removing undesired particles from a gas stream including the steps of contacting an additive containing nitrate and/or nitrite anions with the gas stream; collecting the undesired particles and additive on a collection surface to form an aggregate on the collection surface comprising the additive and undesired particles; and removing the agglomerate from the collection zone. The anions can be compounded with one or more of potassium, sodium, calcium, and aluminum. In a preferred composition, the anion(s) is/are compounded with potassium. The process may be applied to electrostatic precipitators to improve undesired particle collection efficiency.

    Fluid utilized in apparatus for purifying air

    公开(公告)号:US06607586B2

    公开(公告)日:2003-08-19

    申请号:US10036019

    申请日:2001-10-29

    IPC分类号: B03C3013

    CPC分类号: B03C3/16 B03C3/0175

    摘要: An apparatus for removing particles from air, including an inlet for receiving a flow of air, a first chamber in flow communication with the inlet, wherein a charged spray of semi-conducting fluid droplets having a first polarity is introduced to the air flow so that the particles are electrostatically attracted to and retained by the spray droplets, and an outlet in flow communication with the first chamber, wherein the air flow exits the apparatus substantially free of the particles. The first chamber of the apparatus further includes a collecting surface for attracting the spray droplets, a power supply, and a spray nozzle connected to the power supply for receiving fluid and producing the spray droplets therefrom. The apparatus may also include a second chamber in flow communication with the inlet at a first end and the first chamber at a second end, wherein particles entrained in the air flow are charged with a second polarity opposite the first polarity prior to the air flow entering the first chamber. The second chamber of the apparatus further includes a power supply, at least one charge transfer element connected to the power supply for creating an electric field in the second chamber, and a ground element associated with the second chamber for defining and directing the electric field, wherein the air flow pases between the charge transfer element and the ground element.