JPH023395B2 - - Google Patents
Info
- Publication number
- JPH023395B2 JPH023395B2 JP3394183A JP3394183A JPH023395B2 JP H023395 B2 JPH023395 B2 JP H023395B2 JP 3394183 A JP3394183 A JP 3394183A JP 3394183 A JP3394183 A JP 3394183A JP H023395 B2 JPH023395 B2 JP H023395B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- high voltage
- charging
- electrostatic precipitator
- discharge
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 21
- 239000012717 electrostatic precipitator Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000012716 precipitator Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
Description
【発明の詳細な説明】
本発明は電気集塵器用高圧電源装置に係り、特
にコンデンサの充放電によるパルス電圧を直流高
電圧に重畳した電圧波形を出力するに好適な電気
集塵器用高圧電源装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-voltage power supply device for an electrostatic precipitator, and in particular, a high-voltage power supply device for an electrostatic precipitator suitable for outputting a voltage waveform in which a pulse voltage generated by charging and discharging a capacitor is superimposed on a high DC voltage. It is related to.
従来この種の電気集塵器用高圧電源装置は、直
流高圧電源装置と、パルス電源装置との２台の電
源装置を用い、これらをコンデンサ結合すること
により、直流高電圧にパルス電圧を重畳する方式
が主に採用されていた。しかしながら、この方式
では、電源が２組必要となるばかりか、装置が大
型化、複雑化し、かつ、その価格が高くなるとい
う欠点があり、加えて、前記結合コンデンサの容
量によつてパルス電圧の供給エネルギが制限され
てしまうという欠点があつた。 Conventionally, this type of high-voltage power supply for electrostatic precipitators uses two power supplies, a DC high-voltage power supply and a pulse power supply, and combines them with a capacitor to superimpose a pulse voltage on the DC high voltage. was mainly used. However, this method not only requires two sets of power supplies, but also has the drawbacks of making the device larger, more complicated, and more expensive.In addition, the capacitance of the coupling capacitor reduces the pulse voltage. The drawback was that the energy supply was limited.
このような欠点を解消する手段として、最近は
１台の直流電源装置を用い、コンデンサの充放電
作用を利用してパルス電圧を発生し、結合コンデ
ンサによつて、前記直流電源装置からの直流にパ
ルス電圧を重畳する方式も提案されている（特開
昭51−110774）。しかしながら、この方式にあつ
ても、結合コンデンサの容量によつてパルス電圧
の供給エネルギが制限されてしまうという欠点が
改善されなかつた。 Recently, as a means to overcome these drawbacks, a single DC power supply has been used to generate a pulse voltage using the charging and discharging action of a capacitor, and a coupling capacitor is used to connect the DC power from the DC power supply to the DC power supply. A method of superimposing pulse voltages has also been proposed (Japanese Patent Application Laid-Open No. 110774/1983). However, even with this method, the drawback that the supply energy of the pulse voltage is limited by the capacitance of the coupling capacitor cannot be improved.
本発明の目的は、上記従来技術の欠点を解消
し、結合コンデンサを用いることなく、直流電圧
に重畳したパルス電圧を発生せしめ、かつ、電力
効率のよい電気集塵器用高圧電源装置を提供する
ことにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a high-voltage power supply device for an electrostatic precipitator that eliminates the drawbacks of the above-mentioned prior art, generates a pulse voltage superimposed on a DC voltage without using a coupling capacitor, and has good power efficiency. It is in.
本発明は、上記目的を達成するために、直流高
電圧発生部の一方の出力端子を、その直流高圧の
極性に対して順方向に電流を流し得るように配置
した逆電流阻止用素子を介して電気集塵器の一方
の電極に接続し、該直流高圧発生部の他方の出力
端子電気集塵器の他方の電極に接続し、かつ、充
放電をする充放電回路の放電端子を前記直流高電
圧発生部の一方の出力端子に接続し、該充放電回
路の共通端子を電気集塵器の一方の電極に接続
し、かつ該充放電回路の充電端子を直流高圧発生
部の他方の出力端子に接続して構成したことを特
徴とするものである。 In order to achieve the above object, the present invention connects one output terminal of a DC high voltage generator through a reverse current blocking element arranged so that current can flow in the forward direction with respect to the polarity of the DC high voltage. The DC high voltage generator is connected to one electrode of the electrostatic precipitator, and the other output terminal of the DC high voltage generator is connected to the other electrode of the electrostatic precipitator. Connect to one output terminal of the high voltage generator, connect the common terminal of the charge/discharge circuit to one electrode of the electrostatic precipitator, and connect the charging terminal of the charge/discharge circuit to the other output of the DC high voltage generator. It is characterized in that it is configured by being connected to a terminal.
以下、本発明の好適な実施例を図面に基づいて
説明する。第１図は、本発明に係る電気集塵器用
電源装置の一実施例を示す回路図である。 Hereinafter, preferred embodiments of the present invention will be described based on the drawings. FIG. 1 is a circuit diagram showing an embodiment of a power supply device for an electrostatic precipitator according to the present invention.
第１図に示す実施例は次のように構成されてい
る。直流高電圧発生部１は、昇圧トランス１０の
二次巻線をダイオードブリツジ１２の交流端子に
接続し、そのダイオードブリツジ１２の直流端子
１４及び１６より直流高電圧が得られるように電
気回路が構成されている。直流高圧発生部１の高
圧側出力端子１４は、その直流高圧の極性に対し
て順方向に電流を流し得るように配置した逆電流
阻止用素子としてのダイオード素子２を介して電
気集塵器３の放電電極３１に接続され、該発生部
１の接地側出力端子１６は電気集塵器３の接地さ
れた集塵電極３２に接続されている。充放電回路
４は、放電端子４１にスイツチング素子としての
球ギヤツプ４２の一端子を接続し、該スイツチン
グ素子としての球ギヤツプ４２の他端子を充放電
用コンデンサ４３を介して共通端子４４に接続
し、該スイツチング素子としての球ギヤツプ４２
と該コンデンサ４３との接続点を充電電流制限素
子としての抵抗４５を介して充電端子４６に接続
してなり、充電端子４６と共通端子４４との間に
印加された直流高圧により充電され、そ充電が一
定値となると放電端子４１と共通端子４４とから
放電をするように電気回路が構成されている。そ
して、前記放電回路４は、その放電端子４１を該
直流高圧発生部１の高圧側端子１４に、その共通
端子４４電気集塵器３の放電電極３１に、その充
電端子４６を該直流高圧発生部１の接地側電極１
６に、それぞれ接続している。 The embodiment shown in FIG. 1 is constructed as follows. The DC high voltage generator 1 connects the secondary winding of the step-up transformer 10 to the AC terminal of the diode bridge 12, and constructs an electric circuit so that a DC high voltage can be obtained from the DC terminals 14 and 16 of the diode bridge 12. is configured. The high voltage side output terminal 14 of the DC high voltage generator 1 is connected to the electrostatic precipitator 3 via a diode element 2 as a reverse current blocking element arranged so that current can flow in the forward direction with respect to the polarity of the DC high voltage. The grounding side output terminal 16 of the generator 1 is connected to the grounded dust collecting electrode 32 of the electric precipitator 3. The charging/discharging circuit 4 connects one terminal of a ball gap 42 as a switching element to a discharge terminal 41, and connects the other terminal of the ball gap 42 as a switching element to a common terminal 44 via a charging/discharging capacitor 43. , a ball gap 42 as the switching element.
The connection point between the capacitor 43 and the capacitor 43 is connected to a charging terminal 46 via a resistor 45 as a charging current limiting element, and is charged by the DC high voltage applied between the charging terminal 46 and the common terminal 44. The electric circuit is configured to discharge from the discharge terminal 41 and the common terminal 44 when the charge reaches a certain value. The discharge circuit 4 connects its discharge terminal 41 to the high voltage side terminal 14 of the DC high voltage generator 1, its common terminal 44 to the discharge electrode 31 of the electric precipitator 3, and connects its charging terminal 46 to the DC high voltage generator 1. Ground side electrode 1 of section 1
6, respectively.
上述のように構成された本実施例の作用を以下
に詳説する。 The operation of this embodiment configured as described above will be explained in detail below.
第１図において、高圧発生部１の接地側出力端
子１６、充電端子４６、抵抗４５、エンデンサ４
３、共通端子４４、ダイオード２及び高圧発生部
１の高圧側出力端子１４という経路で充放電回路
４の充放電コンデンサ４３には電荷が蓄積され
る。その電荷が一定値以上となると、当該電荷
は、スイツチング素子の球ギヤツプ４２で放出さ
れることになる。その結果、コンデンサ４３の放
電電流は、ダイオード２により逆電流が阻止され
ているので、球ギヤツプ４２、放電端子４１、高
圧発生部１の端子１４、同端子１６、負荷の電気
集塵器３及び共通端子４４という径路を介して流
れ、これにより直流高電圧にパルス状の電圧が重
畳されることになる。ここに、充放電回路４の球
ギヤツプ４２は、高電圧パルスを発生させるため
にスイツチング作用をさせるものである。この実
施例のようにスイツチング素子として球ギヤツプ
４２を用いると、球ギヤツプ４２の間隔を調節す
ることによりパルスの最大電圧を調整することが
できるという利点がある。しかして、コンデンサ
４３の容量は負荷に供給するパルス電力量に応じ
て変化せしめるのが望ましい。そして、コンデン
サ４３への充電電流値は抵抗４６により調節す
る。この抵抗４６の抵抗値によつてパルスの発生
頻度を調節することもできる。このように、結合
コンデンサを用いることなく、直流高電圧に重畳
したパルスを発生することができる。またパルス
を発生させるのに、コンデンサ４３に充電する電
流を制限する抵抗４５は、電力損失を伴うもの
の、コンデンサ４３に充電された電力は、全て電
気集塵器３に流入するようになつており、電力効
率がよいということができる。 In FIG. 1, the ground side output terminal 16 of the high voltage generating section 1, the charging terminal 46, the resistor 45, and the encoder 4
3. Charge is accumulated in the charging/discharging capacitor 43 of the charging/discharging circuit 4 through a path including the common terminal 44, the diode 2, and the high voltage side output terminal 14 of the high voltage generating section 1. When the charge exceeds a certain value, the charge is discharged by the ball gap 42 of the switching element. As a result, since reverse current is blocked by the diode 2, the discharge current of the capacitor 43 is transferred to the ball gap 42, the discharge terminal 41, the terminals 14 and 16 of the high voltage generating section 1, the electric precipitator 3 of the load, The voltage flows through a path called the common terminal 44, and as a result, a pulsed voltage is superimposed on the DC high voltage. Here, the ball gap 42 of the charging/discharging circuit 4 performs a switching action to generate high voltage pulses. Using the ball gap 42 as the switching element as in this embodiment has the advantage that the maximum voltage of the pulse can be adjusted by adjusting the distance between the ball gaps 42. Therefore, it is desirable that the capacitance of the capacitor 43 is changed in accordance with the amount of pulsed power supplied to the load. The charging current value to the capacitor 43 is adjusted by the resistor 46. The frequency of pulse generation can also be adjusted by the resistance value of this resistor 46. In this way, a pulse superimposed on a DC high voltage can be generated without using a coupling capacitor. Furthermore, although the resistor 45 that limits the current charging the capacitor 43 in order to generate pulses involves power loss, all of the power charged in the capacitor 43 flows into the electrostatic precipitator 3. , it can be said that the power efficiency is good.
第２図は本発明の他の実施例を示す回路図であ
る。第２図に示す実施例においても、第１図に示
す実施例と同一構成要素には同一の符号を付して
説明を省略する。 FIG. 2 is a circuit diagram showing another embodiment of the present invention. In the embodiment shown in FIG. 2, the same components as those in the embodiment shown in FIG.
第２図に示す実施例が前記実施例と異なるとこ
ろは、直流高圧発生部１の接地側出力端子１６と
電気集塵器３の接地した集塵電極３２との間に、
直流高圧に対して順方向に電流を流し得るように
配置した逆電流阻止用素子としてのダイオード２
を接続し、該直流高圧発生部１の高圧側出力端子
１４を電気集塵器３の放電電極３１に接続してな
り、かつ該充放電回路４の放電端子４１を該接地
側出力端子１６に接続し、該充放電回路４の共通
端子４４を該集塵電極３２に接続し、該充放電回
路４の充電端子４６を該高圧側出力端子１４に接
続している点にある。 The difference between the embodiment shown in FIG. 2 and the previous embodiment is that there is a
Diode 2 as a reverse current blocking element arranged so that current can flow in the forward direction with respect to high DC voltage
, the high voltage side output terminal 14 of the DC high voltage generator 1 is connected to the discharge electrode 31 of the electrostatic precipitator 3, and the discharge terminal 41 of the charge/discharge circuit 4 is connected to the ground side output terminal 16. The common terminal 44 of the charging/discharging circuit 4 is connected to the dust collecting electrode 32, and the charging terminal 46 of the charging/discharging circuit 4 is connected to the high voltage side output terminal 14.
このように構成した実施例によつても前記実施
例と同様の作用効果を得ることができる。尚、こ
の実施例の場合、高圧発生部１は、パルス電圧が
重畳されるので、絶縁能力を高めることが望まし
い。 The embodiment configured in this manner can also provide the same effects as the embodiments described above. Incidentally, in the case of this embodiment, since pulse voltages are superimposed on the high voltage generating section 1, it is desirable to increase the insulation ability.
尚、前記各実施例においては、逆電流阻止素子
としてダイオードを用いた場合について説明した
が、これはリアクトルを用いても同様の効果を得
ることができる。また、スイツチング素子として
も球ギヤツプ（始動ギヤツプ、三点ギヤツプも含
む）の他にサイリスタやトランジスタを用いるこ
ともできる。さらに、充電電流制限素子としては
抵抗で説明したがこれは限流リアクトル又は抵抗
と限流リアクトルの組合せでもよい。 In each of the above embodiments, the case where a diode is used as the reverse current blocking element has been described, but the same effect can be obtained even if a reactor is used. Furthermore, in addition to a ball gap (including a starting gap and a three-point gap), a thyristor or a transistor can also be used as a switching element. Further, although a resistor has been described as the charging current limiting element, it may be a current limiting reactor or a combination of a resistor and a current limiting reactor.
以上述べたように本発明によれば、結合コンデ
ンサを用いることなしに、簡単でかつ安価な回路
構成により、しかも電力効率のよい電気集塵器用
高圧電源装置を得ることができるという効果があ
る。 As described above, according to the present invention, it is possible to obtain a high-voltage power supply device for an electrostatic precipitator with a simple and inexpensive circuit configuration and high power efficiency without using a coupling capacitor.
第１図は本発明に係る電気集塵器用高圧電源装
置の一実施例を示す回路図、第２図は同他の実施
例を示す回路図である。
１……高圧発生部、２……（逆電流阻止用素
子）ダイオード、３……電気集塵器、４……充放
電回路、４１……放電端子、４２……（スイツチ
ング素子）球ギヤツプ、４３……充放電コンデン
サ、４４……共通端子、４５……（充電電流制限
素子）抵抗、４６……充電端子。
FIG. 1 is a circuit diagram showing one embodiment of a high voltage power supply device for an electrostatic precipitator according to the present invention, and FIG. 2 is a circuit diagram showing another embodiment of the same. DESCRIPTION OF SYMBOLS 1... High voltage generation part, 2... (reverse current blocking element) diode, 3... Electric precipitator, 4... Charge/discharge circuit, 41... Discharge terminal, 42... (switching element) ball gap, 43...Charging/discharging capacitor, 44...Common terminal, 45...(Charging current limiting element) resistor, 46...Charging terminal.
Claims (1)
を電気集塵器に供給する電気集塵器用高圧電源装
置において、直流高圧発生部の一方の出力端子
を、その直流高圧の極性に対して順方向に電流を
流し得るように配置した逆電流阻止用素子を介し
て電気集塵器の一方の電極に接続し、該直流高圧
発生部の他方の出力端子を該電気集塵器の他方の
電極に接続し、かつ、充電端子と共通端子との間
に印加された直流電圧により充電されると共に、
一定電圧まで充電されると放電端子と共通端子と
から放電をするように電気回路が構成されている
充放電回路の放電端子を前記直流高圧発生部の一
方の出力端子に接続し、前記共通端子を前記電気
集塵器の一方の電極に接続し、前記充電端子を前
記直流高圧発生部の他方の出力端子に接続して構
成したことを特徴とする電気集塵器用高圧電源装
置。 ２ 特許請求の範囲第１項記載の電気集塵器用高
圧電源装置において、前記充放電回路は、該放電
端子にスイツチング素子の一方の端子を接続し、
該スイツチング素子の他方の端子を充放電用コン
デンサを介して共通端子に接続し、該スイツチン
グ素子と該コンデンサとの接続点を充電電流制限
素子を介して充電端子に接続して構成したことを
特徴とする電気集塵器用電源装置。[Claims] 1. In a high-voltage power supply device for an electrostatic precipitator that supplies a voltage waveform in which a pulse voltage is superimposed on a DC high voltage to an electrostatic precipitator, one output terminal of a DC high voltage generator is connected to the DC high voltage generator. It is connected to one electrode of the electrostatic precipitator via a reverse current blocking element arranged so that current can flow in the forward direction relative to the polarity, and the other output terminal of the DC high voltage generator is connected to the electrostatic precipitator. connected to the other electrode of the device and charged by a DC voltage applied between the charging terminal and the common terminal,
A discharge terminal of a charge/discharge circuit is configured such that an electric circuit discharges from a discharge terminal and a common terminal when the voltage is charged to a certain voltage, and the discharge terminal of the charge/discharge circuit is connected to one output terminal of the DC high voltage generator, and the common terminal is connected to one electrode of the electrostatic precipitator, and the charging terminal is connected to the other output terminal of the DC high voltage generating section. 2. In the high voltage power supply device for an electrostatic precipitator according to claim 1, the charging/discharging circuit connects one terminal of a switching element to the discharge terminal,
The other terminal of the switching element is connected to a common terminal via a charging/discharging capacitor, and the connection point between the switching element and the capacitor is connected to a charging terminal via a charging current limiting element. A power supply device for an electrostatic precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3394183A JPS59159671A (en) | 1983-03-02 | 1983-03-02 | High voltage power source for electric dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3394183A JPS59159671A (en) | 1983-03-02 | 1983-03-02 | High voltage power source for electric dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59159671A JPS59159671A (en) | 1984-09-10 |
| JPH023395B2 true JPH023395B2 (en) | 1990-01-23 |
Family
ID=12400529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3394183A Granted JPS59159671A (en) | 1983-03-02 | 1983-03-02 | High voltage power source for electric dust collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59159671A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63178772A (en) * | 1987-01-16 | 1988-07-22 | Senichi Masuda | High-voltage pulse generator |
| DK0417771T3 (en) * | 1989-09-14 | 1995-08-14 | Hitachi Metals Ltd | High voltage pulse generating circuit and electrostatic filter containing same |
-
1983
- 1983-03-02 JP JP3394183A patent/JPS59159671A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59159671A (en) | 1984-09-10 |
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