JPH11104519A - Electric dust collector - Google Patents
Electric dust collectorInfo
- Publication number
- JPH11104519A JPH11104519A JP26940697A JP26940697A JPH11104519A JP H11104519 A JPH11104519 A JP H11104519A JP 26940697 A JP26940697 A JP 26940697A JP 26940697 A JP26940697 A JP 26940697A JP H11104519 A JPH11104519 A JP H11104519A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- electrode
- air
- electrode unit
- nozzle
- 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.)
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Links
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- Electrostatic Separation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば自動車用道
路におけるトンネル内等の高湿度雰囲気中に設置される
電気集塵機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric dust collector installed in a high-humidity atmosphere such as in a tunnel of an automobile road.
【０００２】[0002]
【従来の技術】近年、例えば自動車用道路におけるトン
ネル内の汚染空気を浄化する方法として、電気集塵機に
よる方法が用いられるようになってきている。この電気
集塵機による方法は、トンネル内に迂回隧道を形成して
電気集塵機を設置し、トンネル内から隧道内に抽気した
汚染空気を電気集塵機で清浄化し、トンネル内に再び送
気することによってトンネル内の汚染空気を浄化するも
のである。2. Description of the Related Art In recent years, for example, a method using an electric dust collector has been used as a method for purifying contaminated air in a tunnel on an automobile road. In this method using an electric dust collector, a detour tunnel is formed in the tunnel, an electric dust collector is installed, the contaminated air extracted from the tunnel into the tunnel is cleaned by the electric dust collector, and the air is sent again into the tunnel. It purifies the polluted air.
【０００３】上記のようにトンネル内の迂回隧道に電気
集塵機を設置することにより、トンネル内の汚染空気を
浄化することができる。しかし、電気集塵機は、その集
塵処理によって電極ユニットにダストが付着するので、
例えば１日に１回程度清掃する必要がある。[0003] By installing an electric dust collector in a detour tunnel in a tunnel as described above, it is possible to purify contaminated air in the tunnel. However, in the electric dust collector, dust adheres to the electrode unit due to the dust collection process.
For example, it is necessary to clean about once a day.
【０００４】電気集塵機を設置した場所の空気が乾燥し
ている場合には、電極ユニットに圧縮空気を吹き付ける
ことによって清掃することができる。しかし、トンネル
内のように高湿度の場所では、ダストがその水分により
電極ユニット内の電極や絶縁碍子等の表面に強固に付着
してしまうので、圧縮空気を吹き付けるだけでは、充分
に清掃することができない。When the air in the place where the electric precipitator is installed is dry, it can be cleaned by blowing compressed air to the electrode unit. However, in places with high humidity, such as in tunnels, the dust will strongly adhere to the surfaces of the electrodes and insulators in the electrode unit due to its moisture. Can not.
【０００５】このような場合、空気の代わり加圧した水
を電極ユニットに吹き付けて煤塵を除去する水洗浄方式
が用いられている。上記水洗浄方式を用いた場合、複数
の洗浄ノズルからなるノズルユニットを電極ユニットの
空気流入面及び流出面に平行となるように配置し、且
つ、該ノズルユニットを上下方向に複数個配置してい
る。また、各ノズルユニットに電磁弁を接続し、この電
磁弁を開閉制御することにより洗浄ノズルから洗浄水を
噴霧して電極ユニットを洗浄できるようにしている。[0005] In such a case, a water washing method is used in which pressurized water is sprayed on the electrode unit instead of air to remove dust. When the water washing method is used, a nozzle unit including a plurality of washing nozzles is arranged so as to be parallel to an air inflow surface and an outflow surface of the electrode unit, and a plurality of the nozzle units are vertically arranged. I have. In addition, an electromagnetic valve is connected to each nozzle unit, and by controlling the opening and closing of the electromagnetic valve, cleaning water is sprayed from the cleaning nozzle to clean the electrode unit.
【０００６】上記の構成において、電極ユニットを洗浄
する際、従来では、各電磁弁を一定時間開き、各洗浄ノ
ズルから一定量の洗浄水を噴霧して洗浄処理するように
している。In the above configuration, when cleaning the electrode unit, conventionally, each electromagnetic valve is opened for a predetermined time, and a cleaning process is performed by spraying a predetermined amount of cleaning water from each cleaning nozzle.
【０００７】しかし、上記のように各洗浄ノズルから一
定量の水を噴霧して電極ユニットを洗浄するようにした
場合、電極ユニット内の上段に位置する電極に対しては
洗浄水の流量が少なく、下段に位置する電極に対しては
上段方向から落下する流水が含まれるので、洗浄水の流
量が順次増大する。このため電極ユニットの上段に位置
する電極の洗浄効果は少なく、下段方向に行くに従って
洗浄効果が増大することになり、各電極に対する洗浄効
果が均一にならない。However, when the electrode unit is cleaned by spraying a fixed amount of water from each cleaning nozzle as described above, the flow rate of the cleaning water is small for the electrode located at the upper stage in the electrode unit. Since the flowing water falling from the upper direction is included in the lower electrode, the flow rate of the cleaning water is sequentially increased. For this reason, the cleaning effect on the electrodes located in the upper stage of the electrode unit is small, and the cleaning effect increases as going downward, and the cleaning effect on each electrode is not uniform.
【０００８】このような問題を解決するため、最近で
は、各ノズルユニットに接続されている電磁弁の開閉時
間を上段より下段にかけて順次短くなるように設定し、
各電極に対して均一な洗浄力が得られるようにした電気
集塵機が考えられている。In order to solve such a problem, recently, the opening / closing time of the solenoid valve connected to each nozzle unit is set so as to be gradually shortened from the upper stage to the lower stage.
An electric precipitator in which a uniform detergency is obtained for each electrode has been considered.
【０００９】[0009]
【発明が解決しようとする課題】上記のように各ノズル
ユニットに接続されている電磁弁の開閉時間を上段より
下段にかけて順次短くなるように設定した場合、各電極
に対して均一な洗浄力を得ることができる。When the opening and closing times of the solenoid valves connected to the respective nozzle units are set to be shorter from the upper stage to the lower stage as described above, a uniform cleaning power is provided for each electrode. Obtainable.
【００１０】しかし、電気集塵機は、空気流入側の電極
への煤塵付着量が空気流出側の煤塵付着量より多く、上
記従来のように各電極に対して均一な洗浄力が得られる
ようにした場合には、空気流入側の電極に付着した煤塵
を確実に除去できなかったり、あるいは多量の洗浄水を
必要とするなどの問題があった。However, in the electric dust collector, the amount of dust attached to the electrode on the air inflow side is greater than the amount of dust attached to the electrode on the air outflow side, so that a uniform cleaning power can be obtained for each electrode as in the conventional case described above. In such a case, there are problems that dust adhering to the electrode on the air inflow side cannot be reliably removed or a large amount of washing water is required.
【００１１】本発明は上記の課題を解決するためになさ
れたもので、電極ユニットの電極全体を均一に洗浄でき
ると共に、洗浄水の全体の使用量を節約し得る電気集塵
機を提供することを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric precipitator capable of uniformly cleaning the entire electrodes of an electrode unit and saving the total amount of cleaning water. And
【００１２】[0012]
【課題を解決するための手段】本発明は、電極ユニット
の空気流入側及び流出側に電極ユニット洗浄ノズルを設
けてなる電気集塵機において、前記空気流入側洗浄ノズ
ルの洗浄能力を前記空気流出側洗浄ノズルの洗浄能力よ
り大きくしてなることを特徴とする。SUMMARY OF THE INVENTION The present invention relates to an electric precipitator having an electrode unit cleaning nozzle provided on an air inlet side and an air outlet side of an electrode unit. The cleaning capacity of the nozzle is made larger.
【００１３】[0013]
【発明の実施の形態】以下、図面を参照して本発明の実
施形態を説明する。 （第１実施形態）図１は本発明の第１実施形態に係る電
気集塵機の概略構成を示す平面図、図２は同側断面図で
ある。Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a plan view showing a schematic configuration of an electric precipitator according to a first embodiment of the present invention, and FIG. 2 is a sectional side view of the same.
【００１４】図１及び図２において、１は電気集塵機の
集塵ユニット本体で、この本体１の前面に入口扉２が設
けられ、後面に出口扉３が設けられる。また、上記本体
１内の空気流路中には、例えば上下２段に電極ユニット
４ａ，４ｂが設けられる。この電極ユニット４ａ，４ｂ
には、図示しないが多数の放電極及び集塵極等が設けら
れている。上記放電極は、絶縁碍子５を介して直流高電
圧が供給されるようになっている。一方、集塵極は接地
される。In FIGS. 1 and 2, reference numeral 1 denotes a main body of a dust collecting unit of an electric precipitator. An entrance door 2 is provided on a front surface of the main body 1, and an exit door 3 is provided on a rear surface. Further, in the air flow path inside the main body 1, for example, electrode units 4a and 4b are provided in two stages, upper and lower. These electrode units 4a, 4b
Although not shown, a large number of discharge electrodes, dust collection electrodes, and the like are provided. The discharge electrode is supplied with a DC high voltage via the insulator 5. On the other hand, the dust collection electrode is grounded.
【００１５】上記入口扉２及び出口扉３には、その内部
に汚染空気の流入を制御するダンパ６が設けられる。そ
して、空気流入側である入口扉２の裏面に電極ユニット
４ａ，４ｂを水洗浄するための電極ユニット洗浄ノズル
７が複数設けられると共に、空気流出側である出口扉３
の裏面に電極ユニット洗浄ノズル８が設けられる。この
場合、空気流入側の電極ユニット洗浄ノズル７の洗浄能
力を空気流出側の電極ユニット洗浄ノズル８の洗浄能力
より大きく設定する。例えば空気流入側の電極ユニット
洗浄ノズル７を空気流出側の電極ユニット洗浄ノズル８
より噴射水量の多いノズルとする。また、上記本体１の
天井部位にも、電極ユニット洗浄ノズル９が設けられ
る。The entrance door 2 and the exit door 3 are provided with dampers 6 for controlling the flow of contaminated air therein. A plurality of electrode unit washing nozzles 7 for washing the electrode units 4a and 4b with water are provided on the back surface of the entrance door 2 on the air inflow side, and the exit door 3 on the air outflow side.
The electrode unit cleaning nozzle 8 is provided on the back surface of. In this case, the cleaning capability of the electrode unit cleaning nozzle 7 on the air inflow side is set to be larger than the cleaning capability of the electrode unit cleaning nozzle 8 on the air outflow side. For example, the electrode unit cleaning nozzle 8 on the air inflow side is replaced with the electrode unit cleaning nozzle 8 on the air outflow side.
A nozzle with a larger injection water volume is used. An electrode unit cleaning nozzle 9 is also provided on the ceiling of the main body 1.
【００１６】上記洗浄ノズル７，８，９は、それぞれ洗
浄配管１０に接続され、この洗浄配管１０の途中に電磁
弁が設けられる。この電磁弁は、制御装置からの制御指
令によりオン／オフ動作し、オン動作したときに洗浄ノ
ズル７，８，９から水が噴霧されて電極ユニット４ａ，
４ｂが洗浄されるようになっている。更に、本体１内の
底部には、洗浄した水を排出するための排水口１１が設
けられる。Each of the cleaning nozzles 7, 8, 9 is connected to a cleaning pipe 10, and an electromagnetic valve is provided in the cleaning pipe 10. The solenoid valve is turned on / off by a control command from a control device. When the solenoid valve is turned on, water is sprayed from the cleaning nozzles 7, 8, and 9, and the electrode unit 4a,
4b is to be cleaned. Further, a drain port 11 for discharging the washed water is provided at the bottom in the main body 1.
【００１７】上記の構成において、通常の集塵処理を行
なっている場合、入口扉２から本体１内に流入した含塵
空気は電極ユニット４ａ，４ｂに送り込まれる。この電
極ユニット４ａ，４ｂには、入口側に帯電部が設けら
れ、その後に集塵部が設けられている。先ず、帯電部に
おいて、煤塵粒子に対してイオンコロナ放電により帯電
処理が行なわれ、この帯電された煤塵粒子が集塵部の集
塵電極に捕集される。そして、上記電極ユニット４ａ，
４ｂを通って清浄になった空気が、出口扉３のダンパ６
を介して外部に送り出される。In the above configuration, when normal dust collection processing is performed, the dust-containing air flowing into the main body 1 from the entrance door 2 is sent to the electrode units 4a and 4b. Each of the electrode units 4a and 4b is provided with a charging unit on the entrance side, and thereafter provided with a dust collecting unit. First, in the charging section, charging processing is performed on the dust particles by ion corona discharge, and the charged dust particles are collected by the dust collecting electrode of the dust collecting section. Then, the electrode units 4a,
4b passes through the damper 6 of the exit door 3.
Is sent out to the outside.
【００１８】上記の集塵処理により、電極ユニット４
ａ，４ｂの電極部、絶縁碍子５等に煤塵が付着するの
で、所定の間隔で、例えば１日に１回程度、作業員また
は自動運転により、電極ユニット４ａ，４ｂの洗浄が行
なわれる。すなわち、洗浄時においては、洗浄配管１０
に設けられている電磁弁を制御装置からの指令により一
定時間開き、洗浄ノズル７，８，９より水を噴霧して電
極ユニット４ａ，４ｂを洗浄する。The electrode unit 4
Since dust adheres to the electrode portions a and 4b, the insulator 5 and the like, the electrode units 4a and 4b are cleaned at predetermined intervals, for example, about once a day by a worker or automatically. That is, at the time of cleaning, the cleaning pipe 10
Is opened for a predetermined time in accordance with a command from the control device, and water is sprayed from the cleaning nozzles 7, 8, 9 to clean the electrode units 4a, 4b.
【００１９】この場合、空気流入側の電極ユニット洗浄
ノズル７の噴射水量を空気流出側の電極ユニット洗浄ノ
ズル８の噴射水量より多くしているので、電極ユニット
４ａ，４ｂの空気流入側の電極に多量に付着している煤
塵を効率的に除去できる。また、空気流出側の電極ユニ
ット洗浄ノズル８の噴射水量が少なくて済むので、全体
の使用水量を少なくして、電極全体を均一に洗浄するこ
とができる。In this case, since the amount of water jetted from the electrode unit cleaning nozzle 7 on the air inflow side is made larger than the amount of water jetted from the electrode unit cleaning nozzle 8 on the air outflow side, the electrodes on the air inflow side of the electrode units 4a and 4b are connected. A large amount of dust attached can be efficiently removed. In addition, since the amount of water jetted from the electrode unit cleaning nozzle 8 on the air outflow side can be reduced, the entire amount of water used can be reduced, and the entire electrode can be uniformly cleaned.
【００２０】（第２実施形態）次に本発明の第２実施形
態について説明する。上記第１実施形態では、空気流入
側の電極ユニット洗浄ノズル７の洗浄能力を空気流出側
の電極ユニット洗浄ノズル８の洗浄能力より大きく設定
する手段として、空気流入側の電極ユニット洗浄ノズル
７を空気流出側の電極ユニット洗浄ノズル８より噴射水
量の多いノズルとした場合について示したが、この第２
実施形態では、電極ユニット洗浄ノズル７，８として同
じ噴射水量のものを使用し、空気流入側の電極ユニット
洗浄ノズル７による洗浄時間（水の噴霧時間）を空気流
出側の電極ユニット洗浄ノズル８による洗浄時間より長
くしたものである。(Second Embodiment) Next, a second embodiment of the present invention will be described. In the first embodiment, as means for setting the cleaning performance of the electrode unit cleaning nozzle 7 on the air inflow side to be greater than the cleaning performance of the electrode unit cleaning nozzle 8 on the air outflow side, the electrode unit cleaning nozzle 7 on the air inflow side is air The case where a nozzle having a larger amount of sprayed water than the electrode unit cleaning nozzle 8 on the outflow side is described.
In the embodiment, the electrode unit cleaning nozzles 7 and 8 having the same injection water amount are used, and the cleaning time (water spray time) by the electrode unit cleaning nozzle 7 on the air inflow side is reduced by the electrode unit cleaning nozzle 8 on the air outflow side. This is longer than the cleaning time.
【００２１】すなわち、電極ユニット洗浄ノズル７と電
極ユニット洗浄ノズル８の洗浄配管にそれぞれ別個の電
磁弁を接続し、電極洗浄時に空気流入側電極ユニット洗
浄ノズル７の電磁弁を例えば１０〜２０秒、空気流出側
電極ユニット洗浄ノズル８の電磁弁を５〜１０秒開いて
洗浄水を噴霧する。これにより電極ユニット４ａ，４ｂ
の空気流入側の電極に対する洗浄能力が空気流出側の電
極に対する洗浄能力より大きくなり、空気流入側の電極
に多量に付着している煤塵を確実に除去できる。また、
空気流出側の電極ユニット洗浄ノズル８の噴射水量を最
適値に設定できるので、全体の使用水量を少なくして、
電極全体を均一に洗浄することができる。That is, separate electromagnetic valves are connected to the cleaning pipes of the electrode unit cleaning nozzle 7 and the electrode unit cleaning nozzle 8, respectively. The electromagnetic valve of the air outlet side electrode unit cleaning nozzle 8 is opened for 5 to 10 seconds to spray the cleaning water. Thereby, the electrode units 4a, 4b
The cleaning ability of the electrode on the air inflow side becomes greater than the cleaning ability of the electrode on the air outflow side, and thus a large amount of dust adhering to the electrode on the air inflow side can be reliably removed. Also,
Since the injection water amount of the electrode unit cleaning nozzle 8 on the air outflow side can be set to an optimum value, the total amount of water used can be reduced,
The entire electrode can be uniformly cleaned.
【００２２】[0022]
【発明の効果】以上詳記したように本発明によれば、電
極ユニットの空気流入側及び流出側に電極ユニット洗浄
ノズルを設けてなる電気集塵機において、前記空気流入
側洗浄ノズルの洗浄能力を前記空気流出側洗浄ノズルの
洗浄能力より大きく設定したので、電極ユニットの空気
流入側の電極に多量に付着している煤塵を効率的に除去
できる。また、空気流出側の電極ユニット洗浄ノズルの
噴射水量が少なくて済むので、全体の使用水量を少なく
して電極全体を均一に洗浄することができる。As described above in detail, according to the present invention, in an electric precipitator provided with electrode unit cleaning nozzles on the air inflow side and the outflow side of the electrode unit, the cleaning ability of the air inflow side cleaning nozzle is improved. Since the cleaning capacity is set to be larger than that of the air outlet side cleaning nozzle, a large amount of dust adhering to the electrode on the air inlet side of the electrode unit can be efficiently removed. Further, since the amount of water jetted from the electrode unit cleaning nozzle on the air outflow side can be reduced, the entire electrode can be uniformly cleaned by reducing the total amount of water used.
【図１】本発明の第１実施形態に係る電気集塵機の概略
構成を示す平面図。FIG. 1 is a plan view showing a schematic configuration of an electric precipitator according to a first embodiment of the present invention.
【図２】同実施形態における電気集塵機の側断面図。FIG. 2 is a side sectional view of the electric precipitator in the embodiment.
１ 集塵ユニット本体 ２ 入口扉 ３ 出口扉 ４ａ，４ｂ 電極ユニット ５ 絶縁碍子 ６ ダンパ ７ 空気流入側電極ユニット洗浄ノズル ８ 空気流出側電極ユニット洗浄ノズル ９ 天井側電極ユニット洗浄ノズル １０ 洗浄配管 １１ 排水口 DESCRIPTION OF SYMBOLS 1 Dust collection unit main body 2 Inlet door 3 Outlet door 4a, 4b Electrode unit 5 Insulator 6 Damper 7 Air inflow side electrode unit cleaning nozzle 8 Air outflow side electrode unit cleaning nozzle 9 Ceiling side electrode unit cleaning nozzle 10 Cleaning pipe 11 Drain outlet
───────────────────────────────────────────────────── フロントページの続き (72)発明者 上田 泰稔 兵庫県高砂市荒井町新浜２丁目１番１号 三菱重工業株式会社高砂研究所内 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasutoshi Ueda 2-1-1 Shinhama, Arai-machi, Takasago-shi, Hyogo Prefecture Inside the Takasago Research Laboratory, Mitsubishi Heavy Industries, Ltd.
Claims (3)
電極ユニット洗浄ノズルを設けてなる電気集塵機におい
て、 前記空気流入側洗浄ノズルの洗浄能力を前記空気流出側
の洗浄ノズルの洗浄能力より大きくしてなる電気集塵
機。1. An electrostatic precipitator comprising electrode unit cleaning nozzles provided on an air inflow side and an air outflow side of an electrode unit, wherein the cleaning performance of the air inflow side cleaning nozzle is made larger than that of the air outflow side cleaning nozzle. Electric dust collector.
前記空気流出側洗浄ノズルの噴射水量より多くしてなる
請求項１記載の電気集塵機。2. The electrostatic precipitator according to claim 1, wherein the amount of water jetted from the air inflow side cleaning nozzle is greater than the amount of water jetted from the air outflow side cleaning nozzle.
間を前記空気流出側洗浄ノズルによる洗浄時間より長く
設定してなる請求項１記載の電気集塵機。3. The electrostatic precipitator according to claim 1, wherein a cleaning time by the air inflow side cleaning nozzle is set longer than a cleaning time by the air outflow side cleaning nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26940697A JP3316504B2 (en) | 1997-10-02 | 1997-10-02 | Electric dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26940697A JP3316504B2 (en) | 1997-10-02 | 1997-10-02 | Electric dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11104519A true JPH11104519A (en) | 1999-04-20 |
| JP3316504B2 JP3316504B2 (en) | 2002-08-19 |
Family
ID=17471978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26940697A Expired - Fee Related JP3316504B2 (en) | 1997-10-02 | 1997-10-02 | Electric dust collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3316504B2 (en) |
-
1997
- 1997-10-02 JP JP26940697A patent/JP3316504B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3316504B2 (en) | 2002-08-19 |
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