JPH10235224A - Electrostatic dust collector - Google Patents
Electrostatic dust collectorInfo
- Publication number
- JPH10235224A JPH10235224A JP4060697A JP4060697A JPH10235224A JP H10235224 A JPH10235224 A JP H10235224A JP 4060697 A JP4060697 A JP 4060697A JP 4060697 A JP4060697 A JP 4060697A JP H10235224 A JPH10235224 A JP H10235224A
- Authority
- JP
- Japan
- Prior art keywords
- fine particles
- electrode
- discharge electrode
- dust collecting
- auxiliary
- 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.)
- Granted
Links
Landscapes
- Electrostatic Separation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、静電集塵機に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic precipitator.
【０００２】[0002]
【従来の技術】従来より、切削機械に取着され、その静
電集塵機により工作機械から発生する切削油のミスト等
の微粒子を回収する静電集塵機がある。即ち、静電集塵
機におけるケースの上下各部には、ケース内に微粒子を
含むエア（流体）を導入するための導入口と、ケース内
からエアを導出するための導出口とが形成されている。
前記導入口と導出口とはケース内に垂直方向へ延びるよ
うに配設された筒状の集塵極によって連通され、導出口
から導出されるようになっている。又、集塵極の内部に
は放電極が設けられている。2. Description of the Related Art Conventionally, there is an electrostatic precipitator attached to a cutting machine and collecting fine particles such as mist of cutting oil generated from a machine tool by the electrostatic precipitator. That is, an inlet for introducing air (fluid) containing fine particles into the case and an outlet for extracting air from inside the case are formed at upper and lower portions of the case of the electrostatic precipitator.
The inlet and the outlet are communicated with each other by a cylindrical dust collecting electrode arranged to extend in the case in the vertical direction, and are led out from the outlet. A discharge electrode is provided inside the dust collection electrode.
【０００３】そして、集塵極及び放電極に電圧を印加す
ることにより、両極間に直流電界を発生させ、この直流
電界により集塵極内を流通するエアに含まれた微粒子を
帯電させる。すると、微粒子がクーロン引力を受けて集
塵極の内側面へ向かって移動し、集塵極の内側面に付着
される。その結果、エアから微粒子が取り除かれ、導出
口からは微粒子の除かれたエアが導出される。[0003] Then, a voltage is applied to the dust collecting electrode and the discharge electrode to generate a DC electric field between the two electrodes, and the DC electric field charges the fine particles contained in the air flowing through the dust collecting electrode. Then, the fine particles move toward the inner surface of the dust collection electrode under the Coulomb attraction, and adhere to the inner surface of the dust collection electrode. As a result, the fine particles are removed from the air, and the air from which the fine particles are removed is led out from the outlet.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上述した従
来技術の静電集塵機においては、エアに含まれる微粒子
の量が多くなると、微粒子の帯電効率が低下するため、
微粒子の回収効率が低下するという問題があった。However, in the above-mentioned conventional electrostatic precipitator, when the amount of fine particles contained in the air increases, the charging efficiency of the fine particles decreases.
There is a problem that the collection efficiency of the fine particles is reduced.
【０００５】本発明の目的は、微粒子の帯電効率が低下
するのを防止することにより、微粒子の回収効率を向上
することにある。An object of the present invention is to improve the collection efficiency of fine particles by preventing the charging efficiency of the fine particles from decreasing.
【０００６】[0006]
【課題を解決するための手段】請求項１に記載の発明
は、流体に含まれる微粒子を付着する集塵極と、前記集
塵極内に設けられ、流体に含まれる微粒子を帯電させる
放電極と、前記放電極の上流側に設けられ、同放電極に
て微粒子を帯電させる前に流体に含まれる微粒子を帯電
させる補助放電極とを備えたことを要旨とする。According to a first aspect of the present invention, there is provided a dust collecting electrode for adhering fine particles contained in a fluid, and a discharge electrode provided in the dust collecting electrode for charging the fine particles contained in the fluid. And an auxiliary discharge electrode provided upstream of the discharge electrode for charging fine particles contained in a fluid before the discharge electrode charges the fine particles.
【０００７】請求項２に記載の発明は、請求項１に記載
の発明において、前記集塵極、放電極及び補助放電極は
複数設けられ、各補助放電極は各集塵極又は各放電極と
対向するようにそれぞれ配置されていることを要旨とす
る。According to a second aspect of the present invention, in the first aspect of the invention, a plurality of the dust collecting electrodes, discharge electrodes and auxiliary discharge electrodes are provided, and each auxiliary discharge electrode is provided with each dust collection electrode or each discharge electrode. The gist is that they are respectively arranged so as to face.
【０００８】請求項３に記載の発明は、請求項１又は請
求項２に記載の発明において、前記補助放電極は流体の
上流方向及び下流方向のうち少なくとも何れか一方向に
向けて微粒子を帯電させるものであることを要旨とす
る。According to a third aspect of the present invention, in the first or second aspect, the auxiliary discharge electrode charges the fine particles in at least one of the upstream and downstream directions of the fluid. It is the gist that it is to make it.
【０００９】従って、請求項１〜請求項３に記載の発明
は次のような作用を奏する。請求項１に記載の発明で
は、エアに含まれる微粒子が補助放電極により帯電され
る。そして、集塵極と放電極とに電圧を印加すると、両
極間に直流電解が発生し、その直流電解により集塵極内
を流通する流体に含まれる微粒子が同集塵極に付着され
る。放電極により微粒子を帯電させる前に、補助放電極
により既に微粒子は帯電されているため、微粒子の帯電
効率が低下することはない。Accordingly, the first to third aspects of the present invention have the following effects. According to the first aspect of the invention, the fine particles contained in the air are charged by the auxiliary discharge electrode. When a voltage is applied to the dust collection electrode and the discharge electrode, DC electrolysis is generated between the two electrodes, and the DC electrolysis causes fine particles contained in the fluid flowing through the dust collection electrode to adhere to the dust collection electrode. Since the fine particles are already charged by the auxiliary discharge electrode before the fine particles are charged by the discharge electrode, the charging efficiency of the fine particles does not decrease.
【００１０】請求項２に記載の発明では、各補助放電極
は各集塵極に対向配置されているため、集塵極付近にお
ける微粒子を帯電させやすくなる。請求項３に記載の発
明では、補助放電極の上流側において帯電されてなくて
も、補助放電極の下流側でも帯電される。According to the second aspect of the present invention, since each auxiliary discharge electrode is arranged to face each dust collecting electrode, it is easy to charge the fine particles near the dust collecting electrode. According to the third aspect of the present invention, even if it is not charged on the upstream side of the auxiliary discharge electrode, it is also charged on the downstream side of the auxiliary discharge electrode.
【００１１】[0011]
【発明の実施の形態】以下、本発明を具体化した一実施
形態を図面に基づいて説明する。図１に示すように、静
電集塵機１におけるケース２の下部には導入口３が設け
られており、同ケース２の上部には導出口４が設けられ
ている。ケース２の上部にはファンＦが設けられ、ファ
ンＦにより導入口３を介してケース２内に流体としての
エアが誘引され、導出口４を介してケース２の外部へ導
出される。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an inlet 3 is provided at a lower portion of a case 2 of the electrostatic precipitator 1, and an outlet 4 is provided at an upper portion of the case 2. A fan F is provided at an upper portion of the case 2, and air as a fluid is drawn into the case 2 through the inlet 3 by the fan F and is led out of the case 2 through the outlet 4.
【００１２】図１〜図３に示すように、ケース２内には
その隅部に配設されたブラケット５を介して上部及び下
部集塵部６，７が設けられている。各ブラケット５には
導体からなる集塵極としての角パイプ８が複数取り付け
られ、各角パイプ８の上下両端はそれぞれ開口されてい
る。角パイプ８は縦列及び横列に１０個（合計１００
個）ずつ配列され、隣接する各角パイプ８同士は溶接に
より互いに固着されている。As shown in FIGS. 1 to 3, upper and lower dust collectors 6 and 7 are provided in a case 2 via a bracket 5 provided at a corner thereof. A plurality of square pipes 8 as dust collecting electrodes made of a conductor are attached to each bracket 5, and both upper and lower ends of each square pipe 8 are opened. 10 square pipes 8 are arranged in columns and rows (total 100 pipes).
And the adjacent square pipes 8 are fixed to each other by welding.
【００１３】図１，図２，図４に示すように、各ブラケ
ット５の上端には絶縁スペーサ９が設けられ、各絶縁ス
ペーサ９の上端には電極支持板１０が取付ネジ１１によ
り締付け固定されている。従って、電極支持板１０及び
角パイプ８は共にケース２に対して絶縁されている。電
極支持板１０にはその幅方向に一定の間隔をおいてエア
通過孔１２が複数形成され、このエア通過孔１２の両側
付近にはその長手方向に沿って複数の透孔１３が一定の
間隔をおいて形成されている。各透孔１３には上下方向
に延びる放電極１４がそれぞれ圧入され、放電極１４と
電極支持板１０とは電気的に導通されている。各放電極
１４は前記各パイプ８にそれぞれ遊挿され、それらの下
端には先鋭状をなす放電部１４ａが形成されている。放
電極１４の外周面には、放電部１４ａを除いてナイロン
樹脂等の絶縁材が被覆されている。As shown in FIGS. 1, 2, and 4, an insulating spacer 9 is provided at the upper end of each bracket 5, and an electrode support plate 10 is fixedly fastened to the upper end of each insulating spacer 9 by a mounting screw 11. ing. Therefore, both the electrode support plate 10 and the square pipe 8 are insulated from the case 2. A plurality of air passage holes 12 are formed in the electrode support plate 10 at regular intervals in the width direction, and a plurality of through holes 13 are arranged at regular intervals along the longitudinal direction near both sides of the air passage holes 12. Is formed. A discharge electrode 14 extending vertically is press-fitted into each through-hole 13, and the discharge electrode 14 and the electrode support plate 10 are electrically connected. Each discharge electrode 14 is loosely inserted into each of the pipes 8, and a sharp discharge portion 14 a is formed at the lower end thereof. The outer peripheral surface of the discharge electrode 14 is coated with an insulating material such as a nylon resin except for the discharge part 14a.
【００１４】図２に示すように、前記角パイプ８及び放
電極１４は電源１５に接続されている。そして、角パイ
プ８に１０．５キロボルトのプラス電圧が印加される一
方、放電極１４に１０．５キロボルトのマイナス電圧が
印加される。As shown in FIG. 2, the square pipe 8 and the discharge electrode 14 are connected to a power supply 15. Then, a positive voltage of 10.5 kV is applied to the square pipe 8, while a negative voltage of 10.5 kV is applied to the discharge electrode 14.
【００１５】図１，図５，図６に示すように、前記導入
口３の上端内側には絶縁スペーサ１６を介して電極支持
板１７が支持され、電極支持板１７はネジ１８により絶
縁スペーサ１６に対して締付け固定されている。この電
極支持板１７にはその幅方向に一定の間隔をおいてエア
通過孔１９が複数形成され、各エア通過孔１９の両側付
近には長手方向に沿って複数の取付孔２０が一定の間隔
をおいて形成されている。各取付孔２０には上下方向に
延びる補助放電極２１がそれぞれ貫通支持されている。As shown in FIGS. 1, 5 and 6, an electrode support plate 17 is supported inside the upper end of the inlet 3 via an insulating spacer 16, and the electrode support plate 17 is screwed to the insulating spacer 16. Is fixed. A plurality of air passage holes 19 are formed in the electrode support plate 17 at regular intervals in the width direction, and a plurality of mounting holes 20 are arranged at regular intervals along the longitudinal direction near both sides of each air passage hole 19. Is formed. An auxiliary discharge electrode 21 extending in the up-down direction is supported through each mounting hole 20.
【００１６】各補助放電極２１は、各放電極１４の中心
軸線、即ちエアの流れに沿う各放電極１４の同一軸線上
に配置されている。又、各補助放電極２１は、電極支持
板１７からエアの上流側に向かって延びる下部電極ピン
２２と、下流側に向かって延びる上部電極ピン２３とを
備えている。両電極ピン２２，２３はそれらの軸線同士
が一致するように配置されており、同両電極ピン２２，
２３の基端部は一体に成形されている。各電極ピン２
２，２３の先端には先鋭状をなす放電部２２ａ，２３ａ
がそれぞれ形成されており、この放電部２２ａ，２３ａ
を除く各電極ピン２２，２３の外周面はナイロン樹脂等
の絶縁材が被覆されている。そして、図５に示すよう
に、補助放電極２１は前記電源１５に接続され、この電
源１５から補助電極２１に対して１０．５キロボルトの
マイナス電圧が印加される。Each auxiliary discharge electrode 21 is arranged on the central axis of each discharge electrode 14, that is, on the same axis of each discharge electrode 14 along the flow of air. Each auxiliary discharge electrode 21 includes a lower electrode pin 22 extending from the electrode support plate 17 toward the upstream side of the air and an upper electrode pin 23 extending toward the downstream side. The two electrode pins 22 and 23 are arranged so that their axes coincide with each other.
The base end of 23 is integrally formed. Each electrode pin 2
Discharge portions 22a, 23a having sharp ends are provided at the tips of 2, 23, respectively.
Are formed respectively, and the discharge portions 22a, 23a
The outer peripheral surfaces of the electrode pins 22 and 23 except for the above are coated with an insulating material such as nylon resin. Then, as shown in FIG. 5, the auxiliary discharge electrode 21 is connected to the power supply 15, and a negative voltage of 10.5 kV is applied from the power supply 15 to the auxiliary electrode 21.
【００１７】次に、上記のように構成された静電集塵機
の作用について説明する。ファンＦが駆動すると、工作
機械から発生する切削油のミスト等の微粒子を含むエア
が導入口３を介してケース２内に誘引される。このと
き、補助放電極２１にマイナス電圧が印加されると、上
下両電極ピン２２，２３の放電部２２ａ，２３ａからエ
アの上流側及び下流側に向けて放電される。すると、電
極支持板１７の上流側において、下部電極ピン２２の放
電部２２ａからの放電によりエアに含まれる微粒子がマ
イナスに帯電される。又、電極支持板１７のエア通過孔
１９を通過したエアに含まれる微粒子であって、同電極
支持板１７の上流側で帯電されなかった微粒子は、上部
電極ピン２３の放電部２３ａからの放電により帯電され
る。即ち、電極支持板１７の上流側及び下流側において
微粒子が帯電され、下部集塵部７の上流側において多く
の微粒子が帯電される。Next, the operation of the electrostatic precipitator structured as described above will be described. When the fan F is driven, air containing fine particles such as mist of cutting oil generated from the machine tool is drawn into the case 2 through the inlet 3. At this time, when a negative voltage is applied to the auxiliary discharge electrode 21, the discharge is performed toward the upstream side and the downstream side of the air from the discharge portions 22a, 23a of the upper and lower electrode pins 22, 23. Then, on the upstream side of the electrode support plate 17, the fine particles contained in the air are negatively charged by the discharge from the discharge portion 22a of the lower electrode pin 22. The fine particles contained in the air passing through the air passage holes 19 of the electrode support plate 17 and not charged on the upstream side of the electrode support plate 17 are discharged from the discharge portion 23 a of the upper electrode pin 23. Is charged by. That is, the fine particles are charged on the upstream side and the downstream side of the electrode support plate 17, and many fine particles are charged on the upstream side of the lower dust collecting portion 7.
【００１８】下部集塵部７における放電極１４の放電部
１４ａから放電されると、補助放電極２１にて帯電され
なかった微粒子が帯電される。従って、エアに多くの微
粒子が含まれていても、下部集塵部７を通過する前にほ
とんどの微粒子が帯電される。そして、下部集塵部７に
おける放電極１４と角パイプ８との間の直流電界による
強力なクーロン力にて微粒子が角パイプ８の内側面に引
き寄せられる。これにより、微粒子が角パイプ８の内側
面に付着され、エアは浄化される。When discharged from the discharge portion 14a of the discharge electrode 14 in the lower dust collecting portion 7, fine particles which are not charged by the auxiliary discharge electrode 21 are charged. Therefore, even if the air contains many fine particles, most of the fine particles are charged before passing through the lower dust collecting portion 7. Then, the fine particles are attracted to the inner side surface of the square pipe 8 by a strong Coulomb force due to a DC electric field between the discharge electrode 14 and the square pipe 8 in the lower dust collecting unit 7. Thereby, the fine particles adhere to the inner side surface of the square pipe 8, and the air is purified.
【００１９】浄化されたエアが下部集塵部７のエア通過
孔１２を通過して上部集塵部６に誘引され、下部集塵部
７と同様に上部集塵部６にて更なるエアの浄化が行われ
る。即ち、上部集塵部６における放電極１４と角パイプ
８との間に直流電界が発生し、その直流電界により下部
集塵部７に回収されなかった微粒子が上部集塵部６の角
パイプ８に引き寄せられ、同角パイプ８の内側面に付着
される。そして、両集塵部７，８にて浄化されたエアは
導出口４を介してケース２の外部に導出される。一方、
各集塵部６，７の角パイプ８に付着したミスト等の微粒
子は互いに結合して液滴になり、その液滴はケース２の
外部へ落下し、導入口３の底部に溜められる。The purified air passes through the air passage holes 12 of the lower dust collecting section 7 and is attracted to the upper dust collecting section 6, and the air is further purified by the upper dust collecting section 6 like the lower dust collecting section 7. Purification is performed. That is, a DC electric field is generated between the discharge electrode 14 and the square pipe 8 in the upper dust collecting section 6, and the fine particles not collected in the lower dust collecting section 7 by the DC electric field are removed by the square pipe 8 of the upper dust collecting section 6. And is attached to the inner surface of the pipe 8. Then, the air purified by the dust collecting sections 7 and 8 is led out of the case 2 through the outlet 4. on the other hand,
Fine particles such as mist attached to the square pipes 8 of the dust collecting sections 6 and 7 are combined with each other to form droplets, and the droplets fall outside the case 2 and are collected at the bottom of the inlet 3.
【００２０】次に、本実施形態から見い出せる効果を以
下に記載する。 ・放電極１４の上流側に補助放電極２１を設けたため、
下部集塵部７付近に誘引されるエアに含まれる微粒子の
ほとんどがマイナスに帯電される。従って、エアに含ま
れる微粒子の量が多くなっても、微粒子の帯電効率が低
下するのを防止でき、微粒子の回収効率を向上すること
ができる。Next, effects that can be found from the present embodiment will be described below. -Because the auxiliary discharge electrode 21 is provided on the upstream side of the discharge electrode 14,
Most of the fine particles contained in the air attracted near the lower dust collecting portion 7 are negatively charged. Therefore, even if the amount of the fine particles contained in the air increases, it is possible to prevent the charging efficiency of the fine particles from lowering and to improve the efficiency of collecting the fine particles.
【００２１】・各補助放電極２１を下部集塵部７の各角
パイプ８又は各放電極１４と対向するようにそれぞれ配
置したため、ケース２内の微粒子をむらなく均等に帯電
させることができる。そのため、下部集塵部７における
各角パイプ８に付着される微粒子の量にばらつきがな
い。従って、微粒子の回収効率を高いままに維持するこ
とができる。Since the auxiliary discharge electrodes 21 are arranged so as to be opposed to the respective square pipes 8 or the respective discharge electrodes 14 of the lower dust collecting portion 7, the fine particles in the case 2 can be uniformly charged evenly. Therefore, there is no variation in the amount of the fine particles attached to each square pipe 8 in the lower dust collecting section 7. Therefore, the collection efficiency of the fine particles can be kept high.
【００２２】・各補助放電極２１の放電部２２ａ，２３
ａからエアの上流方向及び下流方向に向けて放電するよ
うにしたため、帯電されないまま微粒子が補助放電極２
１を通過しても、補助放電極２１の下流側で確実に帯電
させることができる。従って、微粒子の帯電効率が低下
するのをより一層防止できる。The discharge portions 22a and 23 of each auxiliary discharge electrode 21
a, the particles are discharged in the upstream and downstream directions of the air, so that the fine particles can be discharged without being charged.
1 can be reliably charged downstream of the auxiliary discharge electrode 21. Accordingly, it is possible to further prevent the charging efficiency of the fine particles from decreasing.
【００２３】なお、前記実施形態は次のように構成して
もよい。 ・上下両集塵部６，７の間のみに補助放電極２１を設け
ること。又は、上下両集塵部６，７の間と、下部集塵部
７の上流側とに補助放電極２１をそれぞれ設けること。The above embodiment may be configured as follows. -The auxiliary discharge electrode 21 should be provided only between the upper and lower dust collecting parts 6 and 7. Alternatively, auxiliary discharge electrodes 21 are provided between the upper and lower dust collecting sections 6 and 7 and on the upstream side of the lower dust collecting section 7 respectively.
【００２４】・補助放電極２１を互いに別体からなる下
部電極ピン２２と上部電極ピン２３とから構成するこ
と。 ・補助放電極２１を下部電極ピン２２又は上部電極ピン
２３のうち何れか一方から構成し、エアの上流方向又は
下流方向のうち何れかの方向にのみ放電すること。The auxiliary discharge electrode 21 is composed of a lower electrode pin 22 and an upper electrode pin 23 which are formed separately from each other. The auxiliary discharge electrode 21 is constituted by one of the lower electrode pin 22 and the upper electrode pin 23, and discharges only in any of the upstream and downstream directions of air.
【００２５】次に、前記実施形態から把握できる請求項
以外の技術的思想について、それらの効果とともに記載
する。 （ａ）前記補助放電極はその両端が先鋭状に形成された
放電部を有している請求項１〜請求項３のうち何れか一
項に記載の静電集塵機。Next, technical ideas other than the claims that can be grasped from the embodiment will be described together with their effects. (A) The electrostatic precipitator according to any one of claims 1 to 3, wherein the auxiliary discharge electrode has a discharge part whose both ends are sharply formed.
【００２６】（ｂ）前記放電極はその軸線が流体の流れ
る方向に沿うように配置され、前記補助放電極は放電極
と同一軸線上に一致するように配置されている請求項１
〜請求項３又は（ａ）のうち何れかに記載の静電集塵
機。この構成によれば、微粒子の回収効率をより一層向
上することができる。(B) The discharge electrode is arranged so that its axis is along the direction of flow of the fluid, and the auxiliary discharge electrode is arranged so as to coincide with the same axis as the discharge electrode.
The electrostatic precipitator according to claim 3 or (a). According to this configuration, the collection efficiency of the fine particles can be further improved.
【００２７】（ｃ）前記上流側及び下流側電極ピンは一
体に成形されている請求項１〜請求項３、（ａ）又は
（ｂ）のうち何れかに記載の静電集塵極。この構成によ
れば、補助放電極の組み付け工数が増えるのを防止する
ことができる。(C) The electrostatic precipitating electrode according to any one of claims 1 to 3, (a) and (b), wherein the upstream and downstream electrode pins are integrally formed. According to this configuration, it is possible to prevent an increase in the number of steps for assembling the auxiliary discharge electrode.
【００２８】（ｄ）前記上流側及び下流側電極ピンは、
それらの軸線同士が一致するように配置されている
（ｂ）又は（ｃ）に記載の静電集塵極。この構成によれ
ば、補助放電極を簡単に組み付けることができる。(D) The upstream and downstream electrode pins are
The electrostatic precipitating electrode according to (b) or (c), wherein the axes are arranged to coincide with each other. According to this configuration, the auxiliary discharge electrode can be easily assembled.
【００２９】[0029]
【発明の効果】この発明は、以上のように構成されてい
るため、次のような効果を奏する。請求項１に記載の発
明によれば、流体に含まれる微粒子の帯電効率が低下す
るのを防止することができるため、微粒子の回収効率を
向上することにある。The present invention is configured as described above, and has the following effects. According to the first aspect of the present invention, since it is possible to prevent the charging efficiency of the fine particles contained in the fluid from being reduced, it is to improve the collecting efficiency of the fine particles.
【００３０】請求項２に記載の発明によれば、補助放電
極を各集塵極と対向するように配置したため、微粒子の
回収効率を高いままに維持することができる。請求項３
に記載の発明によれば、帯電していない微粒子が補助放
電極を通過してもその下流側でも帯電させることができ
る。よって、微粒子の帯電効率が低下するのをより一層
防止できる。According to the second aspect of the present invention, since the auxiliary discharge electrode is disposed so as to face each of the dust collecting electrodes, the collection efficiency of the fine particles can be kept high. Claim 3
According to the invention described in (1), even if uncharged fine particles pass through the auxiliary discharge electrode, they can be charged even on the downstream side. Therefore, it is possible to further prevent the charging efficiency of the fine particles from decreasing.
【図１】一実施形態を具体化した静電集塵装置を示す正
断面図。FIG. 1 is a front sectional view showing an electrostatic precipitator according to an embodiment.
【図２】上部又は下部集塵部を示す拡大断面図。FIG. 2 is an enlarged sectional view showing an upper or lower dust collecting unit.
【図３】図１のＸ−Ｘ断面図。FIG. 3 is a sectional view taken along line XX of FIG. 1;
【図４】上下両集塵部における電極支持板を示す平面
図。FIG. 4 is a plan view showing an electrode support plate in both upper and lower dust collecting units.
【図５】補助放電極を示す正面一部拡大断面図。FIG. 5 is a partially enlarged front sectional view showing an auxiliary discharge electrode.
【図６】補助放電極を示す正面一部拡大斜視図。FIG. 6 is a partially enlarged front perspective view showing an auxiliary discharge electrode.
８…角パイプ（集塵極）、１４…放電極、２１…補助放
電極。8: Square pipe (dust collection electrode), 14: discharge electrode, 21: auxiliary discharge electrode.
Claims (3)
と、 前記集塵極内に設けられ、流体に含まれる微粒子を帯電
させる放電極と、 前記放電極の上流側に設けられ、同放電極にて微粒子を
帯電させる前に流体に含まれる微粒子を帯電させる補助
放電極とを備えた静電集塵機。A dust collecting electrode for adhering fine particles contained in a fluid; a discharge electrode provided in the dust collecting electrode for charging fine particles contained in the fluid; and a discharge electrode provided upstream of the discharge electrode. An electrostatic precipitator comprising: an auxiliary discharge electrode for charging fine particles contained in a fluid before the fine particles are charged by the discharge electrode.
設けられ、各補助放電極は各集塵極又は各放電極と対向
するようにそれぞれ配置されている請求項１に記載の静
電集塵機。2. The apparatus according to claim 1, wherein a plurality of said dust collecting electrodes, discharge electrodes and auxiliary discharge electrodes are provided, and each auxiliary discharge electrode is disposed so as to face each of said dust collecting electrodes or each discharge electrode. Electrostatic dust collector.
方向のうち少なくとも何れか一方向に向けて放電させる
ものである請求項１又は請求項２に記載の静電集塵極。3. The electrostatic precipitating electrode according to claim 1, wherein the auxiliary discharge electrode discharges the fluid in at least one of an upstream direction and a downstream direction of the fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04060697A JP3645983B2 (en) | 1997-02-25 | 1997-02-25 | Electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04060697A JP3645983B2 (en) | 1997-02-25 | 1997-02-25 | Electrostatic precipitator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10235224A true JPH10235224A (en) | 1998-09-08 |
| JP3645983B2 JP3645983B2 (en) | 2005-05-11 |
Family
ID=12585187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04060697A Expired - Fee Related JP3645983B2 (en) | 1997-02-25 | 1997-02-25 | Electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3645983B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139227A1 (en) * | 2012-03-19 | 2013-09-26 | 上海苍穹环保技术有限公司 | Dedusting and sterilizing apparatus with high-voltage and high-frequency |
| CN110354996A (en) * | 2018-04-10 | 2019-10-22 | Bsh家用电器有限公司 | The ventilation device of the filter unit of electrostatic and the filter unit with electrostatic |
| JPWO2021090595A1 (en) * | 2019-11-05 | 2021-05-14 | ||
| JPWO2021176881A1 (en) * | 2020-03-02 | 2021-09-10 |
-
1997
- 1997-02-25 JP JP04060697A patent/JP3645983B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013139227A1 (en) * | 2012-03-19 | 2013-09-26 | 上海苍穹环保技术有限公司 | Dedusting and sterilizing apparatus with high-voltage and high-frequency |
| CN110354996A (en) * | 2018-04-10 | 2019-10-22 | Bsh家用电器有限公司 | The ventilation device of the filter unit of electrostatic and the filter unit with electrostatic |
| EP3552710B1 (en) * | 2018-04-10 | 2023-12-27 | BSH Hausgeräte GmbH | Electrostatic filter unit and extraction hood device with electrostatic filter unit |
| JPWO2021090595A1 (en) * | 2019-11-05 | 2021-05-14 | ||
| CN113784794A (en) * | 2019-11-05 | 2021-12-10 | 富士电机株式会社 | Electric dust collector |
| JPWO2021176881A1 (en) * | 2020-03-02 | 2021-09-10 | ||
| WO2021176881A1 (en) * | 2020-03-02 | 2021-09-10 | 富士電機株式会社 | Dust collector |
| CN114173931A (en) * | 2020-03-02 | 2022-03-11 | 富士电机株式会社 | Dust collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3645983B2 (en) | 2005-05-11 |
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