JP2514411B2 - How to clean the electricity collecting device - Google Patents
How to clean the electricity collecting deviceInfo
- Publication number
- JP2514411B2 JP2514411B2 JP63253308A JP25330888A JP2514411B2 JP 2514411 B2 JP2514411 B2 JP 2514411B2 JP 63253308 A JP63253308 A JP 63253308A JP 25330888 A JP25330888 A JP 25330888A JP 2514411 B2 JP2514411 B2 JP 2514411B2
- Authority
- JP
- Japan
- Prior art keywords
- dust
- electrostatic precipitator
- hammering
- discharge electrode
- dust collecting
- 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 - Lifetime
Links
Landscapes
- Electrostatic Separation (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電気集塵装置の清掃方法に係り、特に、電気
集塵装置の槌打装置による清掃運転中に、集塵室内のダ
ストを効率良く清掃する電気集塵装置の清掃方法に関す
る。Description: TECHNICAL FIELD The present invention relates to a method for cleaning an electrostatic precipitator, and more particularly, to efficiently remove dust in a dust collecting chamber during a cleaning operation by a hammering device of the electrostatic precipitator. The present invention relates to a method of cleaning an electrostatic precipitator that cleans well.
〔従来の技術〕 電気集塵装置では、放電極、集塵極、槌打装置等によ
って構成された集塵室と、放電極を支持する為の支持碍
子が収納された碍子室と、前記集塵室から前記碍子室へ
のガス侵入を防止する為に設けられた碍子シールファン
と、前記集塵室内で捕集された捕集ダストを電気集塵装
置の外へ搬出させる為に設けられた排出装置と、前記放
電極に支持碍子を介し荷電させる直流高圧発生装置と、
から構成されている。(Prior Art) In an electrostatic precipitator, a dust collecting chamber composed of a discharge electrode, a dust collecting electrode, a hammering device, etc., an insulator chamber in which a supporting insulator for supporting the discharge electrode is housed, An insulator sealing fan provided to prevent gas from entering the insulator chamber from the dust chamber, and a dust collecting device that was provided to carry out the collected dust collected in the dust collecting chamber to the outside of the electrostatic precipitator. An ejector, and a direct current high voltage generator for charging the discharge electrode via a support insulator,
It consists of
従来の槌打装置を備えた電気集塵装置の通常の運転時
における各装置の運転パターンが第４図に示され、これ
によるとガス出口ダンパは常時開放されている。更に、
碍子シールファン、直流高圧発生装置、放電極槌打装置
及び排出装置は連続作動されている。集塵極槌打装置に
おいては、休止時間T1と運転時間T2とを複数回交互に繰
り返すように運転されている。The operation pattern of each device during normal operation of the conventional electrostatic precipitator equipped with a hammering device is shown in FIG. 4, whereby the gas outlet damper is always open. Furthermore,
Insulator seal fan, DC high voltage generator, discharge electrode hammering device and discharge device are continuously operated. The dust collecting hammering device is operated such that the rest time T 1 and the operating time T 2 are alternately repeated a plurality of times.
第５図には、従来の電気集塵装置の清掃運転中の各装
置の運転パターンが示され、ガス出口ダンパは常に閉鎖
されている。放電極槌打装置及び集塵極槌打装置は、運
転時間T3で連続作動されてる。碍子シールファン及び排
出装置は、運転時間T3とその後の遅延時間T4間連続作動
されてる。その時の、直流高圧発生装置は停止されてい
るので電気集塵装置内の清掃運転中は、無荷電の状態で
ある。電気集塵装置内の清掃方法は、放電極槌打装置、
集塵極槌打装置が、放電極、集塵極を夫々槌打すること
によって、放電極、集塵極に付着したダストを飛散落下
させ排出装置によって電気集塵装置外に搬出し電気集塵
装置内を清掃している。FIG. 5 shows the operation pattern of each device during the cleaning operation of the conventional electrostatic precipitator, and the gas outlet damper is always closed. The discharge electrode hammering device and the dust collecting pole hammering device are continuously operated at the operation time T 3 . The insulator seal fan and the discharging device are continuously operated for the operation time T 3 and the delay time T 4 thereafter. At that time, since the DC high voltage generator is stopped, it is in an uncharged state during the cleaning operation in the electrostatic precipitator. The method for cleaning the inside of the electrostatic precipitator is:
The dust collector hammering device hammers the discharge electrode and the dust collecting electrode respectively to scatter and drop the dust adhering to the discharge electrode and the dust collecting electrode, and carry it out of the electric dust collector by the discharge device to collect the electric dust. The inside of the device is being cleaned.
しかしながら、従来の電気集塵装置の清掃運転中で
は、集塵極、放電極に付着、堆積したダストは槌打装置
によって槌打して飛散落下させることができるが、集塵
室の内壁等に付着、堆積したダストを飛散落下させるこ
とができない。この集塵室の内壁等に付着、堆積したダ
ストは、ガスブローの急変時のブローアップ及び再放電
時の出力電流急増によるイオン風の影響によって飛散落
下する。この飛散落下したダストは電気集塵装置のガス
出口に飛散し、通常の運転を再開始した時にガス出口か
ら排出されることにより、出口ダスト濃度が高くなる虞
があった。However, during the cleaning operation of the conventional electrostatic precipitator, the dust that has adhered to and accumulated on the dust collecting electrode and the discharge electrode can be hammered and scattered by a hammering device and dropped onto the inner wall of the dust collecting chamber. Dust that has adhered or accumulated cannot be scattered and dropped. The dust that has adhered to and accumulated on the inner wall of the dust collection chamber scatters and falls due to the influence of ionic wind due to the blow-up at the sudden change of gas blow and the sudden increase of the output current at the time of re-discharge. There is a risk that the scattered dust falls to the gas outlet of the electrostatic precipitator and is discharged from the gas outlet when the normal operation is restarted, resulting in a high dust concentration at the outlet.
本発明はこのような事情に鑑みて成されたもので電気
集塵装置の清掃運転効率を高め出口ダスト濃度を低くす
る電気集塵装置の清掃方法を提供することを目的とす
る。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for cleaning an electrostatic precipitator that enhances the cleaning operation efficiency of the electrostatic precipitator and lowers the dust concentration at the outlet.
本発明は前記目的を達成するために、集塵運転を停止
し、次の集塵運転を再開するまでに集塵装置内に付着し
たダストを清掃除去する電気集塵装置の清掃方法におい
て、集塵室のガス通路の出口のみ若しくは出入口を閉鎖
した状態で集塵室内を槌打しながら放電極に荷電並びに
荷電停止を複数回繰り返し、集塵室内にイオン風を発生
させることを特徴とする。In order to achieve the above object, the present invention provides a method for cleaning an electric dust collector, in which dust collection operation is stopped and dust adhering to the inside of the dust collection apparatus is cleaned and removed before restarting the next dust collection operation. It is characterized in that ion discharge is generated in the dust collecting chamber by repeatedly charging and stopping the discharge electrode a plurality of times while hammering the dust collecting chamber with only the outlet of the gas passage of the dust chamber or with the inlet / outlet closed.
本発明によれば、先ず、集塵室のガス通路の出口若し
くは出入口が閉鎖される。集塵室から碍子室へのガス侵
入を防止させる為、碍子シールファンを連続作動させ
る。放電極槌打装置、集塵極槌打装置及び排出装置を連
続作動させ、放電極及び集塵極に付着したダストを飛散
落下させ排出装置によってダストお電気集塵装置外へ搬
出させる。更に、直流高圧発生装置は、作動、停止を複
数回繰り返すようにする。この時の、直流高圧発生装置
から発生する電流は最大出力にする。直流高圧発生装置
を作動させ、放電極に荷電を発生させると、集塵室内に
瞬時荷電によるイオン風が発生する。直流高圧発生装置
の作動、停止が複数回交互に繰り返すことにより該イオ
ン風が複数回得られることになる。該イオン風により、
単に槌打装置で放電極、集塵極を槌打させるだけでは飛
散落下されないダスト、集塵室の内壁面等に付着、堆積
されたダスト及び槌打装置が槌打することにより飛散落
下したダストが新たに集塵室の内壁面等に付着、堆積さ
れたダストを清掃運転中に飛散落下させ、排出装置によ
り排出されるようになる。According to the present invention, first, the outlet or inlet of the gas passage of the dust collecting chamber is closed. The insulator seal fan is operated continuously in order to prevent gas from entering the insulator chamber from the dust collection chamber. The discharge electrode hammering device, the dust collecting pole hammering device, and the discharging device are continuously operated to scatter and drop the dust adhering to the discharge electrode and the dust collecting electrode, and to carry it out of the dust and electrostatic precipitator by the discharging device. Furthermore, the DC high voltage generator is repeatedly operated and stopped a plurality of times. At this time, the current generated from the DC high voltage generator is maximized. When the DC high-voltage generator is operated to generate electric charge in the discharge electrode, ionic wind is generated in the dust collection chamber due to instantaneous charging. By repeating the operation and stop of the DC high-voltage generator alternately a plurality of times, the ion wind can be obtained a plurality of times. By the ionic wind,
Dust that cannot be scattered and dropped simply by hammering the discharge electrode and dust collecting electrode with a hammering device, dust that has adhered to and accumulated on the inner wall surface of the dust collection chamber, and dust that has scattered and dropped due to the hammering of the hammering device. Is newly attached to the inner wall surface of the dust collection chamber, etc., and the accumulated dust is scattered and dropped during the cleaning operation, and is discharged by the discharge device.
以下添付図面に従って本発明に係る電気集塵装置の清
掃方法の好ましい実施例を詳説する。Hereinafter, preferred embodiments of a method for cleaning an electrostatic precipitator according to the present invention will be described in detail with reference to the accompanying drawings.
第２図には本発明に係る電気集塵装置の一実施例が示
され、第３図（Ａ）、（Ｂ）にはそれぞれ本発明に係る
電気集塵装置の集塵極と槌打装置の説明図及び碍子室内
の説明図が示されている。放電極14、集塵極16及び放電
極槌打装置24、集塵極槌打装置26によって構成された集
塵室12Aと、放電極14を支持する為の支持碍子31が収納
された碍子室32と、前記集塵室12Aから前記碍子室32へ
のガス侵入を防止する為に設けられた碍子シールファン
33と、前記集塵室内で捕集された捕集ダストを電気集塵
装置の外へ搬出させる為に設けられた排出装置30と、前
記放電極14に支持碍子を介した直流高圧発生装置34と、
から電気集塵装置は構成されている。FIG. 2 shows an embodiment of the electrostatic precipitator according to the present invention, and FIGS. 3A and 3B show a dust collecting electrode and a hammering device of the electric precipitator according to the present invention, respectively. And an explanatory view of the inside of the insulator chamber. A dust collection chamber 12A configured by the discharge electrode 14, the dust collecting electrode 16, the discharge electrode hammering device 24, and the dust collecting hammering device 26, and an insulator chamber accommodating a support insulator 31 for supporting the discharge electrode 14. 32, and an insulator seal fan provided to prevent gas from entering the insulator chamber 32 from the dust collection chamber 12A.
33, a discharge device 30 provided to discharge the collected dust collected in the dust collection chamber to the outside of the electrostatic precipitator, and a high-voltage DC generator 34 for the discharge electrode 14 via a supporting insulator. When,
The electrostatic precipitator is composed of.
第１図には本発明に係る電気集塵装置の清掃運転中に
おける各装置の運転パターンが示され、ガス出入口に設
けられた出口ダンパ38又は出入口ダンパ36、38が閉鎖さ
れ、ガス通路が閉路にされている。放電極槌打装置24及
び集塵極槌打装置26は、運転時間T3で連続作動されてい
る。碍子シールファン33及び排出装置30は、運転時間T3
とその後の遅延時間T4により連続作動されてる。更に、
直流高圧発生装置34は、運転時間T3の後に停止時間T6を
複数回交互に繰り返えされてる。この時の、直流高圧発
生装置34から発生する電流は最高出力にしている。FIG. 1 shows the operation pattern of each device during the cleaning operation of the electrostatic precipitator according to the present invention. The outlet damper 38 or the inlet / outlet dampers 36, 38 provided at the gas inlet / outlet is closed, and the gas passage is closed. Has been The discharge electrode hammering device 24 and the dust collecting pole hammering device 26 are continuously operated at the operation time T 3 . The insulator seal fan 33 and the discharging device 30 have an operating time T 3
And the subsequent delay time T 4 causes continuous operation. Furthermore,
The DC high-voltage generator 34 has an operating time T 3 and a stopping time T 6 alternately repeated a plurality of times. At this time, the current generated from the DC high voltage generator 34 is set to the maximum output.
次に前記の如く構成された電気集塵装置の清掃方法の
作用について説明する。Next, the operation of the method of cleaning the electrostatic precipitator configured as described above will be described.
先ず、放電極槌打装置24及び集塵極槌打装置26が放電
極14及び集塵極16を夫々槌打することによって、放電極
14及び集塵極16に付着したダストを飛散落下させ、飛散
落下したダストは排出装置30によって電気集塵装置10外
に搬出され、電気集塵装置10が清掃される。また、図１
に示すように槌打中に直流高圧発生装置34を作動させ、
放電極に荷電を発生させると、集塵室内に瞬時荷電によ
るイオン風が発生する。槌打中に直流高圧発生装置34の
作動、停止が複数回繰り返すことによりイオン風が複数
回得られることになる。該イオン風により、単に槌打装
置で放電極14、集塵極16を槌打させるだけでは飛散落下
されないダスト、集塵室12Aの内壁面12B等に付着、堆積
されたダスト及び槌打装置が槌打することにより飛散落
下したダストが新たに集塵室12Aの内壁面12B等に付着、
堆積されたダスト等を清掃運転中に飛散落下させ、排出
装置30により電気集塵装置10外へ排出することができ
る。従って、清掃運転中に集塵室12Aの内壁面12B等に付
着、堆積したダストを飛散落下させることができる。First, the discharge electrode hammering device 24 and the dust collecting electrode hammering device 26 hammer the discharge electrode 14 and the dust collecting electrode 16, respectively, so that the discharge electrode
Dust adhering to 14 and the dust collecting electrode 16 is scattered and dropped, and the scattered dust is carried out of the electrostatic precipitator 10 by the discharging device 30, and the electrostatic precipitator 10 is cleaned. Also, FIG.
As shown in, the DC high voltage generator 34 is activated during hammering,
When the discharge electrode is charged, ionic wind is generated in the dust collection chamber due to instantaneous charging. Ion wind can be obtained multiple times by repeatedly operating and stopping the DC high-voltage generator 34 during hammering. Due to the ion wind, dust that is not scattered and dropped by merely hammering the discharge electrode 14 and the dust collecting electrode 16 with a hammering device, dust deposited on the inner wall surface 12B of the dust collecting chamber 12A, etc. and a hammering device Dust scattered and dropped by hammering newly adheres to the inner wall surface 12B of the dust collection chamber 12A, etc.
The accumulated dust or the like can be scattered and dropped during the cleaning operation, and can be discharged to the outside of the electric dust collector 10 by the discharging device 30. Therefore, it is possible to scatter and drop the dust that has adhered to and accumulated on the inner wall surface 12B of the dust collection chamber 12A during the cleaning operation.
以上説明したように本発明に係る電気集塵装置の清掃
方法によれば、電気集塵装置の清掃運転中に集塵室内を
槌打しながらイオン風を連続発生させることで電気集塵
装置の集塵室の内壁面等に付着、堆積したダストを飛散
落下させることができ、これにより清掃運転効率を高め
出口ダスト濃度を低くすることができる。As described above, according to the method for cleaning the electrostatic precipitator according to the present invention, the ionic wind is continuously generated while hammering inside the electrostatic precipitator during the cleaning operation of the electrostatic precipitator, so that the electrostatic precipitator is Dust that has adhered to and accumulated on the inner wall surface of the dust collection chamber can be scattered and dropped, which can enhance the cleaning operation efficiency and reduce the outlet dust concentration.
第１図は本発明に係る電気集塵装置の清掃方法の清掃運
転パターンの一実施例を示す説明図、第２図は本発明に
係る電気集塵装置の清掃方法の一実施例を示す一部断面
を含む斜視図、第３図（Ａ）、（Ｂ）は集塵極と槌打装
置の説明図、碍子シールファンの説明図、第４図、第５
図は従来例に係る電気集塵装置の通常時運転パターンの
一実施例を示す説明図、清掃運転パターンの一実施例を
示す説明図である。 10……電気集塵装置、12A……集塵室、14……放電極、1
6……集塵極、34……直流高圧発生装置。FIG. 1 is an explanatory view showing an example of a cleaning operation pattern of a method for cleaning an electric dust collector according to the present invention, and FIG. 2 is an illustration showing an embodiment of a method for cleaning an electric dust collector according to the present invention. 3A and 3B are perspective views including a partial cross section, FIG. 3A and FIG.
FIG. 1 is an explanatory diagram showing an example of a normal operation pattern of an electrostatic precipitator according to a conventional example, and an explanatory diagram showing an example of a cleaning operation pattern. 10 …… Electric dust collector, 12A …… Dust collection chamber, 14 …… Discharge electrode, 1
6 …… Dust collector, 34 …… DC high voltage generator.
Claims (1)
るまでに集塵装置内に付着したダストを清掃除去する電
気集塵装置の清掃方法において、 集塵室のガス通路の出口若しくは出入口を閉鎖した状態
で集塵室内を槌打しながら放電極に荷電並びに荷電停止
を複数回繰り返し、集塵室内にイオン風を発生させるこ
とを特徴とする電気集塵装置の清掃方法。Claim: What is claimed is: 1. A method for cleaning an electric dust collector, which cleans and removes dust adhering to the inside of the dust collector by stopping the dust collection operation and restarting the next dust collection operation. A method for cleaning an electrostatic precipitator, characterized in that an ion wind is generated in the dust collecting chamber by repeatedly charging and stopping the discharge electrode a plurality of times while hammering the dust collecting chamber with the outlet or the inlet closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63253308A JP2514411B2 (en) | 1988-10-07 | 1988-10-07 | How to clean the electricity collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63253308A JP2514411B2 (en) | 1988-10-07 | 1988-10-07 | How to clean the electricity collecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02102753A JPH02102753A (en) | 1990-04-16 |
| JP2514411B2 true JP2514411B2 (en) | 1996-07-10 |
Family
ID=17249486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63253308A Expired - Lifetime JP2514411B2 (en) | 1988-10-07 | 1988-10-07 | How to clean the electricity collecting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514411B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014533607A (en) * | 2011-11-29 | 2014-12-15 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | Method and apparatus for cleaning an electrostatic precipitator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07112550B2 (en) * | 1987-01-30 | 1995-12-06 | 日立プラント建設株式会社 | How to operate the electrostatic precipitator |
-
1988
- 1988-10-07 JP JP63253308A patent/JP2514411B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014533607A (en) * | 2011-11-29 | 2014-12-15 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | Method and apparatus for cleaning an electrostatic precipitator |
| US9630186B2 (en) | 2011-11-29 | 2017-04-25 | General Electric Technology Gmbh | Method and a device for cleaning an electrostatic precipitator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02102753A (en) | 1990-04-16 |
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