JP2562557B2 - Electric dust collector charging method - Google Patents
Electric dust collector charging methodInfo
- Publication number
- JP2562557B2 JP2562557B2 JP13476593A JP13476593A JP2562557B2 JP 2562557 B2 JP2562557 B2 JP 2562557B2 JP 13476593 A JP13476593 A JP 13476593A JP 13476593 A JP13476593 A JP 13476593A JP 2562557 B2 JP2562557 B2 JP 2562557B2
- Authority
- JP
- Japan
- Prior art keywords
- dust
- discharge
- dust collecting
- electrostatic precipitator
- electrode
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は電気集塵装置の荷電方法
に係り、含塵ガス中のダスト粒子、特にサブミクロン粒
子（粒径１μｍ以下）を効率的に捕集する電気集塵装置
の荷電方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging method for an electrostatic precipitator, and relates to an electrostatic precipitator for efficiently collecting dust particles in a dust-containing gas, particularly submicron particles (particle diameter 1 μm or less). It relates to a charging method.
【０００２】[0002]
【従来の技術】通常、電気集塵装置は荷電集塵室内に流
入する含塵ガス中からダストを、その室内に設けられた
放電極と集塵極との間で発生するコロナ放電によって集
塵極に静電吸着させ捕集する。図７に、この種の電気集
塵装置の代表的な平板形の電気集塵装置の概略全体構成
を示す。同図において、高圧の直流電圧を発生する直流
電圧電源装置４２からの出力電圧（荷電電圧Ｖ）は、碍
子４４を介して平板形の同一形状の放電線からなる負極
の放電極４６と、この放電極４６の両面に対向して配設
されている正極の２つの集塵極４８、４８との間に印加
される。これにより放電極４６と、集塵極４８、４８と
の両電極間で所定のコロナ放電が起こり、矢印５０で図
示する方向から流入する含塵ガス中のダストには正、負
イオンが帯電され、そのうち負イオンが帯電されたダス
トは集塵極４８、４８に捕集される。また、荷電集塵室
内のダスト濃度は含塵ガスが流入する入口側の放電極４
６周辺が最も高く、含塵ガスが流出する方向に沿って徐
々に低くなる。2. Description of the Related Art Generally, an electrostatic precipitator collects dust from a dust-containing gas flowing into a charged dust collecting chamber by corona discharge generated between a discharge electrode and a dust collecting electrode provided in the chamber. It is electrostatically adsorbed on the pole and collected. FIG. 7 shows a schematic overall configuration of a typical flat plate type electrostatic precipitator of this type of electrostatic precipitator. In the figure, the output voltage (charging voltage V) from the DC voltage power supply device 42 that generates a high DC voltage is passed through an insulator 44 and a negative discharge electrode 46 formed of a flat plate-shaped discharge line and It is applied between the two dust collecting electrodes 48, 48 of the positive electrode, which are arranged so as to face both surfaces of the discharge electrode 46. As a result, a predetermined corona discharge occurs between the discharge electrode 46 and the dust collecting electrodes 48, 48, and the dust in the dust-containing gas flowing in from the direction shown by the arrow 50 is charged with positive and negative ions. The dust charged with negative ions is collected by the dust collecting electrodes 48, 48. Further, the dust concentration in the charged dust collecting chamber is determined by the discharge electrode 4 on the inlet side into which the dust-containing gas flows.
6 is the highest, and gradually becomes lower along the direction in which the dust-containing gas flows out.
【０００３】ところで、このような電気集塵装置の放電
極４６の放電電流Ｉは、図８の放電電流特性図に示すよ
うに、荷電電圧Ｖに対してダスト濃度が高い程、流れ難
い傾向にある。By the way, as shown in the discharge current characteristic diagram of FIG. 8, the discharge current I of the discharge electrode 46 of such an electrostatic precipitator tends to flow more difficult as the dust concentration is higher than the charging voltage V. is there.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな同一形状の放電線から形成される放電極が設けられ
た電気集塵装置では、荷電集塵室の入口側のダスト濃度
が出口側に比較して高いために入口側の放電極と集塵極
との間に発生するスパーク電圧が抑制される。これによ
り、入口側の放電線から放電される放電電流が小さくな
り入口側の集塵空間に大きな電流密度を形成することが
できないので、含塵ガス中のダストへの帯電効率が悪く
なり、電気集塵装置の集塵性能が低くなるという問題が
ある。特に、サブミクロン粒子（１μｍ以下）の帯電
は、拡散荷電が支配的である為、集塵空間の電流密度を
大きくして帯電される機会を大きくすることが重要にな
る。However, in the electrostatic precipitator provided with the discharge electrode formed of the discharge lines having the same shape, the dust concentration at the inlet side of the charged dust collecting chamber is lower than that at the outlet side. Since it is high, the spark voltage generated between the discharge electrode on the inlet side and the dust collecting electrode is suppressed. As a result, the discharge current discharged from the discharge line on the inlet side becomes small and a large current density cannot be formed in the dust collecting space on the inlet side, so that the charging efficiency of dust in the dust-containing gas deteriorates, and There is a problem that the dust collecting performance of the dust collecting device is lowered. In particular, in the charging of submicron particles (1 μm or less), diffusion charging is predominant, so it is important to increase the current density of the dust collecting space to increase the chance of being charged.
【０００５】本発明は上述した従来技術の問題点に鑑
み、集塵室に流入する含塵ガスの流れの上流側の集塵空
間に下流側の集塵空間より大きな電流密度を形成して、
電気集塵装置の集塵効率、特にサブミクロン粒子の集塵
効率を向上させることのできる電気集塵装置の荷電方法
を提供することを目的としている。In view of the above problems of the prior art, the present invention forms a larger current density in the dust collecting space on the upstream side of the flow of the dust-containing gas flowing into the dust collecting chamber than on the dust collecting space on the downstream side.
An object of the present invention is to provide a charging method for an electrostatic precipitator, which can improve the electrostatic collection efficiency of the electrostatic precipitator, particularly the submicron particles.
【０００６】上述した問題点を解決するために、電気集
塵装置の集塵室に含塵ガスを流入させ、該含塵ガス中か
らダストを前記集塵室内に設けられた複数の放電線から
なる放電極と集塵極との間で発生するコロナ放電によっ
て集塵極に静電吸着させ捕集する電気集塵装置の荷電方
法に於いて、前記集塵室に流入する含塵ガスの流れの上
流側の放電線に下流側の放電線よりも大きな放電電流を
流して下流側の集塵空間よりも上流側の集塵空間に大き
な電流密度を形成し、ダストへの帯電機会が下流側より
上流側で大きくなるようにすることにより前記下流側の
集塵空間よりも前記上流側の集塵空間でダストに高密度
の電荷を帯電させることを特徴とする。In order to solve the above-mentioned problems, a dust-containing gas is caused to flow into a dust-collecting chamber of an electrostatic precipitator, and dust from the dust-containing gas is discharged from a plurality of discharge lines provided in the dust-collecting chamber. Flow of dust-containing gas flowing into the dust collecting chamber in a charging method of an electrostatic precipitator that electrostatically attracts and collects the dust collecting electrode by corona discharge generated between the discharge electrode and the dust collecting electrode A discharge current larger than that of the discharge line on the downstream side is applied to the discharge line on the upstream side of the to form a larger current density in the dust collection space on the upstream side than the dust collection space on the downstream side, and the dust is charged on the downstream side. It is characterized in that the dust is charged with a high density electric charge in the upstream dust collecting space rather than in the downstream dust collecting space by making the dust larger on the upstream side.
【０００７】[0007]
【作用】本発明の電気集塵装置の荷電方法によれば、集
塵室から流入する含塵ガスの流れの上流側の放電線に下
流側の放電線よりも大きな放電電流を流して上流側の集
塵空間に下流側の集塵空間より大きな電流密度を形成し
た。これにより、前記上流側の集塵空間でダストに高密
度の電荷を帯電させることができるので、前記ダストは
下流側の放電線の集塵空間に形成される電界において大
きなクーロン力が発生し、集塵極に吸引され易くなる。
従って、前記ダストが上流側から下流側に流れる間に確
実に集塵極に捕集させることができる。特に、上流側の
集塵空間の電流密度を大きくすることにより、拡散荷電
が支配的なサブミクロン粒子に帯電される機会が大きく
なるので、短時間で大きな電荷量を帯電させることがで
きる。これにより、サブミクロン粒子の捕集効率を向上
させることができる。According to the charging method for the electrostatic precipitator of the present invention, a discharge current larger than that of the discharge line on the downstream side is applied to the discharge line on the upstream side of the flow of the dust-containing gas flowing from the dust collecting chamber. A larger current density was formed in the dust collection space of the above than in the dust collection space on the downstream side. As a result, since it is possible to charge the dust with a high-density charge in the dust collecting space on the upstream side, the dust generates a large Coulomb force in the electric field formed in the dust collecting space of the discharge line on the downstream side, It becomes easy to be sucked into the dust collecting electrode.
Therefore, the dust can be reliably collected by the dust collecting electrode while the dust flows from the upstream side to the downstream side. In particular, by increasing the current density of the dust collecting space on the upstream side, the chance of being charged by submicron particles in which diffusion charging is dominant increases, so that a large amount of charge can be charged in a short time. Thereby, the collection efficiency of submicron particles can be improved.
【０００８】[0008]
【実施例】以下、添付図面に従って本発明に係る電気集
塵装置の荷電方法の好ましい実施例について詳説する。
図１に本発明に係る電気集塵装置の荷電方法を適用する
電気集塵装置の概略全体構成が示されており、同図にお
いて高圧の直流電圧を発生する直流電圧電源装置２から
の出力電圧（荷電電圧Ｖ）は碍子４を介して平板形の負
極の放電極６と、この放電極６の両面に対向して配設さ
れている正極の２つの集塵極８、８との間に印加され
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a charging method for an electrostatic precipitator according to the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 shows a schematic overall structure of an electrostatic precipitator to which a charging method for an electrostatic precipitator according to the present invention is applied. In FIG. 1, an output voltage from a DC voltage power supply device 2 for generating a high-voltage DC voltage is shown. (Charging voltage V) is applied between the plate-shaped negative electrode discharge electrode 6 via the insulator 4 and the two positive electrode dust collecting electrodes 8 disposed opposite to both surfaces of the discharge electrode 6. Is applied.
【０００９】ところで、本実施例の平板形の放電極６は
芯線の太さが異なる形状の放電線６Ａ、６Ｂ及び６Ｃと
から形成されており、これらの放電線（６Ａ、６Ｂ、６
Ｃ）は矢印１０で図示する方向から流入する含塵ガスに
向って、芯線の細い放電線順に、放電線６Ａ、６Ｂ、６
Ｃが配設されている。即ち、含塵ガスが流入する側には
電気抵抗の最も小さい放電線６Ａが配設され、含塵ガス
が流出する側には電気抵抗の最も大きい放電線６Ｃが配
設されている。これらの各放電線６Ａ、６Ｂ、６Ｃは図
２に示す荷電電圧Ｖに対する放電電流特性を有してい
る。同図において、放電線６Ａは図中、一点鎖線６０Ａ
の放電電流特性を示し、また放電線６Ｂ、６Ｃは破線６
０Ｂ、実線６０Ｃの放電電流特性をそれぞれ示す。この
ように放電極６の各放電線は、放電線６Ａ、６Ｂ、６Ｃ
の順に大きな放電電流が流れるようになっている。By the way, the flat plate discharge electrode 6 of this embodiment is composed of discharge lines 6A, 6B and 6C having different core thicknesses, and these discharge lines (6A, 6B, 6).
C) is the discharge lines 6A, 6B, 6 in the order of discharge lines with a thin core wire toward the dust-containing gas flowing in from the direction shown by the arrow 10.
C is provided. That is, the discharge line 6A having the smallest electric resistance is arranged on the side where the dust-containing gas flows in, and the discharge line 6C having the largest electric resistance is arranged on the side where the dust-containing gas flows out. Each of these discharge lines 6A, 6B and 6C has a discharge current characteristic with respect to the charging voltage V shown in FIG. In the figure, the discharge line 6A is a dashed line 60A in the figure.
Discharge current characteristics of the discharge line 6B and 6C are indicated by the broken line 6
The discharge current characteristics of 0B and the solid line 60C are shown respectively. In this way, the discharge lines of the discharge electrode 6 are the discharge lines 6A, 6B, 6C.
A large discharge current flows in this order.
【００１０】次に上記の如く構成された電気集塵装置の
動作の概要について述べる。直流電圧電源装置２から放
電極６と集塵極８、８との両電極間に所定の高圧の荷電
電圧Ｖが印加されることによって所定のコロナ放電、即
ち負コロナが発生する。このような状態になると、ガス
分子のイオン化が進展し、多数の負イオン、正イオンが
生成され、正イオンは直ちに放電極６に中和され、負イ
オンは集塵極８、８に向かって走行する。このようにイ
オン化が進展した状態で矢印１０で示す方向から含塵ガ
スを流入させると、この含塵ガス中のダストに、正、負
イオンが瞬間的に帯電される。これらの帯電ダストのう
ち負イオンが帯電した帯電ダストは、例えば放電極６の
放電線６Ａに対向している領域の集塵極８、８によって
捕集され、また正イオンが帯電した漂流中の帯電ダスト
は放電極６側にクーロン力によって引き寄せられて中和
される。中和されたダストのうち新たに負イオンが帯電
した帯電ダストは集塵極８、８によって捕集される。こ
のように、放電極６の各放電線、６Ａ、６Ｂ、６Ｃと、
集塵極８との間を通過する含塵ガス中のダストは、負イ
オンが帯電する毎に集塵極８、８によって徐々に捕集さ
れる。Next, an outline of the operation of the electrostatic precipitator constructed as described above will be described. A predetermined high voltage charging voltage V is applied between the discharge electrode 6 and the dust collecting electrodes 8, 8 from the DC voltage power supply device 2 to generate a predetermined corona discharge, that is, a negative corona. In such a state, ionization of gas molecules progresses, a large number of negative ions and positive ions are generated, the positive ions are immediately neutralized by the discharge electrode 6, and the negative ions move toward the dust collecting electrodes 8 and 8. To run. When the dust-containing gas is made to flow in from the direction indicated by the arrow 10 in the state where the ionization has progressed in this way, the dust in the dust-containing gas is instantaneously charged with positive and negative ions. Among these charged dusts, the charged dusts charged with negative ions are collected by, for example, the dust collecting electrodes 8 in a region of the discharge electrode 6 facing the discharge line 6A, and the charged dusts are charged with positive ions. The charged dust is attracted to the discharge electrode 6 side by the Coulomb force and is neutralized. The charged dust newly charged with negative ions among the neutralized dust is collected by the dust collecting electrodes 8 and 8. In this way, the discharge lines 6A, 6B and 6C of the discharge electrode 6,
The dust in the dust-containing gas passing between the dust collecting electrode 8 and the dust collecting electrode 8 is gradually collected by the dust collecting electrodes 8 and 8 every time negative ions are charged.
【００１１】そして、本発明の電気集塵装置の荷電方法
の場合、放電線６Ａ、６Ｂ、６Ｃの順に大きな放電電流
が流れるようになっているので、各放電線６Ａ、６Ｂ、
６Ｃの夫々の集塵空間には、放電線６Ａ、６Ｂ、６Ｃの
順に大きな電流密度が形成される。このように、上流側
の放電線６Ａの集塵空間に大きな電流密度を形成した状
態で、矢印１０で示す方向から含塵ガスを流入させる
と、含塵ガス中のダストに大きな電荷量を帯電させるこ
とができる。これにより、大きな電荷量が帯電されたダ
ストは、下流側の放電線６Ｂ、６Ｃの集塵空間に形成さ
れる電界において大きなクーロン力が発生し、集塵極に
吸引され易くなるので、ダストが上流側から下流側に流
れる間に確実に集塵極８、８に捕集させることができ
る。特に、上流側の放電線６Ａの集塵空間の電流密度を
大きくすることにより、拡散荷電が支配的なサブミクロ
ン粒子への帯電される機会が大きくなるので、短時間で
大きな電荷量を帯電させることができる。これにより、
サブミクロン粒子の捕集効率を向上させることができ
る。In the charging method for the electrostatic precipitator of the present invention, the discharge lines 6A, 6B and 6C are arranged so that a large discharge current flows in that order, so that the discharge lines 6A, 6B,
A large current density is formed in the order of the discharge lines 6A, 6B, and 6C in each dust collecting space of 6C. As described above, when the dust-containing gas is introduced from the direction shown by the arrow 10 in a state where a large current density is formed in the dust collecting space of the discharge line 6A on the upstream side, the dust in the dust-containing gas is charged with a large charge amount. Can be made. As a result, the dust charged with a large amount of charge generates a large Coulomb force in the electric field formed in the dust collecting space of the discharge lines 6B and 6C on the downstream side, and is easily attracted to the dust collecting electrode. The dust collecting electrodes 8 can be reliably collected while flowing from the upstream side to the downstream side. In particular, by increasing the current density in the dust collecting space of the discharge line 6A on the upstream side, the chance of being charged to submicron particles in which diffusion charging is dominant increases, so that a large amount of charge is charged in a short time. be able to. This allows
The collection efficiency of submicron particles can be improved.
【００１２】次に、図３を参照して従来の電気集塵装置
と、本実施例の電気集塵装置の荷電方法を適用した電気
集塵装置との集塵効率の比較結果について述べる。同図
において、横軸は荷電電力Ｐ（荷電電圧Ｖと放電電流Ｉ
との積）、縦軸は集塵効率の座標軸をそれぞれ示す。従
来の電気集塵装置では、電荷集塵室の入口側におけるダ
スト濃度が高くなることによってスパーク電圧が抑制さ
れ、荷電電力Ｐを例えば荷電電力Ｐ１以上に設定するこ
とができないが、本発明の電気集塵装置ではスパーク電
圧が従来の装置より高く設定されるので荷電電力Ｐを、
前記荷電電力Ｐ１より高い値の荷電電力Ｐ２に設定する
ことができる。このように放電極と集塵極との間に印加
する荷電電圧Ｖ及び放電電流Ｉが従来の電気集塵装置よ
り高く設定できることにより、含塵ガス中のダスト層に
作用する電気的付着力は増す。Next, the result of comparison of the dust collection efficiency between the conventional dust collector and the dust collector to which the charging method for the dust collector of this embodiment is applied will be described with reference to FIG. In the figure, the horizontal axis represents the charging power P (charging voltage V and discharge current I).
And the vertical axis indicates the coordinate axis of the dust collection efficiency. In the conventional electrostatic precipitator, the spark voltage is suppressed by increasing the dust concentration on the inlet side of the charge precipitating chamber, and the charging power P cannot be set to, for example, the charging power P1 or higher. In the dust collector, the spark voltage is set higher than that of the conventional device, so the charging power P is
The charging power P2 can be set to a value higher than the charging power P1. As described above, the charging voltage V and the discharge current I applied between the discharge electrode and the dust collecting electrode can be set higher than those in the conventional electrostatic precipitator, so that the electric adhesive force acting on the dust layer in the dust-containing gas is reduced. Increase.
【００１３】以上に述べた実施例の電気集塵装置の荷電
方法を適用した電気集塵装置では集塵効率を向上させる
ために放電極を太さの異なる放電線によって形成した
が、これに限らず放電極を例えば図４に示すような角状
の放電線、図５に示すような突起２０が付いた放電線ま
たは図６に示すような針２２が付いた放電線のそれぞれ
の形状を変えた放電線によって形成してもよい。また放
電極を種類の異なる放電線を組み合わせて形成し、その
放電極の放電電流特性が変わるようにしてもよい。In the electrostatic precipitator to which the charging method for the electrostatic precipitator of the above-mentioned embodiment is applied, the discharge electrodes are formed by the discharge lines having different thicknesses in order to improve the collecting efficiency, but the present invention is not limited to this. For example, the discharge electrode may be formed into a rectangular discharge line as shown in FIG. 4, a discharge line with a protrusion 20 as shown in FIG. 5, or a discharge line with a needle 22 as shown in FIG. It may be formed by a discharge line. Further, the discharge electrode may be formed by combining different types of discharge lines so that the discharge current characteristics of the discharge electrode are changed.
【００１４】[0014]
【発明の効果】以上に説明したように、本発明に係る電
気集塵装置の荷電方法によれば、集塵室から流入する含
塵ガスの流れの上流側の放電線に下流側の放電線よりも
大きな放電電流を流して上流側の集塵空間に下流側の集
塵空間より大きな電流密度を形成し、上流側の集塵空間
において、ダストに帯電される電荷量を大きくした。こ
れにより、前記ダストは下流側に形成される電界におい
て大きなクーロン力が付与されるようにした。従って、
ダストが上流側から下流側に流れる間に、集塵極に吸引
されて確実に捕集されるので集塵効率を向上させること
ができ、特に、含塵ガス中のサブミクロン粒子の捕集効
率を向上させることができる。As described above, according to the charging method for the electrostatic precipitator according to the present invention, the discharge line on the downstream side of the discharge line on the upstream side of the flow of the dust-containing gas flowing from the dust collecting chamber. A larger discharge current was applied to form a larger current density in the upstream side dust collecting space than in the downstream side dust collecting space, and the amount of charges charged on the dust was increased in the upstream side dust collecting space. As a result, a large Coulomb force is applied to the dust in the electric field formed on the downstream side. Therefore,
While the dust flows from the upstream side to the downstream side, it is sucked into the dust collecting electrode and is reliably collected, so that the dust collecting efficiency can be improved, and particularly, the collecting efficiency of the submicron particles in the dust-containing gas. Can be improved.
【図１】本発明に係る電気集塵装置の荷電方法を適用す
る電気集塵装置の概略全体構成図を示す構成図FIG. 1 is a configuration diagram showing a schematic overall configuration diagram of an electrostatic precipitator to which a charging method for an electrostatic precipitator according to the present invention is applied.
【図２】図１に示した電気集塵装置の放電電流特性を示
す特性図FIG. 2 is a characteristic diagram showing discharge current characteristics of the electrostatic precipitator shown in FIG.
【図３】荷電電力と集塵効率との関係を示す特性図FIG. 3 is a characteristic diagram showing the relationship between charging power and dust collection efficiency.
【図４】本発明に係る電気集塵装置の荷電方法を適用す
る電気集塵装置の他の実施例における放電線の形状を示
す側面図FIG. 4 is a side view showing the shape of a discharge line in another embodiment of the electrostatic precipitator to which the charging method for the electrostatic precipitator according to the present invention is applied.
【図５】本発明に係る電気集塵装置の荷電方法を適用す
る電気集塵装置の他の実施例における放電線の形状を示
す側面図FIG. 5 is a side view showing the shape of a discharge line in another embodiment of the electrostatic precipitator to which the charging method for the electrostatic precipitator according to the present invention is applied.
【図６】本発明に係る電気集塵方法を適用する電気集塵
装置の他の実施例における放電線の形状を示す側面図FIG. 6 is a side view showing the shape of a discharge wire in another embodiment of the electrostatic precipitator to which the electrostatic precipitating method according to the present invention is applied.
【図７】従来の電気集塵装置の概略全体構成図を示す構
成図FIG. 7 is a configuration diagram showing a schematic overall configuration diagram of a conventional electrostatic precipitator.
【図８】図７に示した電気集塵装置の放電極の放電電流
特性を示す特性図8 is a characteristic diagram showing discharge current characteristics of a discharge electrode of the electrostatic precipitator shown in FIG.
２…直流電圧電源装置 ４…碍子 ６…放電極 ８…集塵極 2 ... DC voltage power supply device 4 ... Insulator 6 ... Discharge electrode 8 ... Dust collecting electrode
Claims (1)
せ、該含塵ガス中からダストを前記集塵室内に設けられ
た複数の放電線からなる放電極と集塵極との間で発生す
るコロナ放電によって集塵極に静電吸着させ捕集する電
気集塵装置の荷電方法に於いて、前記放電極を構成する複数の放電線のうち同一の放電枠
内で複数の放電線の形状を変え、 １つの電源から前記形状を変えた放電線に電圧を印加し
て 前記集塵室に流入する含塵ガスの流れの前記放電枠内
の上流側に位置する放電線に下流側に位置する放電線よ
り大きな放電電流が流れるようにして前記下流側の集塵
空間よりも前記上流側の集塵空間に大きな電流密度を形
成し、 ダストへの帯電機会が下流側より上流側で大きくなるよ
うにすることにより前記下流側の集塵空間よりも前記上
流側の集塵空間でダストに高密度の電荷を帯電させるこ
とを特徴とする電気集塵装置の荷電方法。1. A dust-collecting gas is caused to flow into a dust-collecting chamber of an electrostatic precipitator, and dust from the dust-containing gas is provided in the dust-collecting chamber. In a charging method of an electrostatic precipitator that electrostatically attracts and collects a dust collecting electrode by a corona discharge generated between the discharge electrodes, the same discharge frame among a plurality of discharge lines constituting the discharge electrode is provided.
Change the shape of multiple discharge lines in a single source, and apply a voltage from one power supply to the discharge line with the changed shape.
The discharge frame in the stream of dust-containing gas flowing into the dust collecting chamber Te
And to flow a large discharge current from the discharge line located downstream to form a large current density to the dust collecting space of the upstream side of the dust collecting space of the downstream discharge line located upstream of the dust By charging the dust to a higher density in the upstream dust collection space than in the downstream dust collection space by increasing the charging opportunity to the upstream side from the downstream side. Charging method for dust collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13476593A JP2562557B2 (en) | 1993-06-04 | 1993-06-04 | Electric dust collector charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13476593A JP2562557B2 (en) | 1993-06-04 | 1993-06-04 | Electric dust collector charging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH067704A JPH067704A (en) | 1994-01-18 |
| JP2562557B2 true JP2562557B2 (en) | 1996-12-11 |
Family
ID=15136043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13476593A Expired - Fee Related JP2562557B2 (en) | 1993-06-04 | 1993-06-04 | Electric dust collector charging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562557B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7655068B2 (en) * | 2007-06-14 | 2010-02-02 | General Electric Company | Method and systems to facilitate improving electrostatic precipitator performance |
| JP5098885B2 (en) * | 2007-10-29 | 2012-12-12 | ダイキン工業株式会社 | Charging device and air treatment device |
| JP5304096B2 (en) | 2007-10-29 | 2013-10-02 | ダイキン工業株式会社 | Charging device and air treatment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5167585A (en) * | 1974-12-09 | 1976-06-11 | Metallgesellschaft Ag | DENKISHUJINSOCHI |
-
1993
- 1993-06-04 JP JP13476593A patent/JP2562557B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH067704A (en) | 1994-01-18 |
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