JPS61150060U - - Google Patents
Info
- Publication number
- JPS61150060U JPS61150060U JP3291085U JP3291085U JPS61150060U JP S61150060 U JPS61150060 U JP S61150060U JP 3291085 U JP3291085 U JP 3291085U JP 3291085 U JP3291085 U JP 3291085U JP S61150060 U JPS61150060 U JP S61150060U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- detection means
- change rate
- detecting
- function selection
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 239000012717 electrostatic precipitator Substances 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims 1
- 239000012716 precipitator Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
Description
第１図は本考案の実施例を示すブロツク図であ
り、第２図は第１図に示す実施例における各部の
動作波形図である。第３図は排ガスの負荷特性を
あらわすグラフであり、第４図は電極間電圧の変
化をあらわすグラフである。
２…交流電源、３…制御サイリスタ、４…変圧
器、５…整流器、６…電気集塵器、１１…分圧抵
抗、１２…検出機能選択回路、１３…電圧変化速
度検出回路、１４…低電圧検出回路、１５…コン
パレータ、１６…ｄｖ／ｄｔ設定器、１７…パル
ス整形回路。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is an operation waveform diagram of each part in the embodiment shown in FIG. FIG. 3 is a graph showing the load characteristics of exhaust gas, and FIG. 4 is a graph showing changes in the voltage between the electrodes. 2... AC power supply, 3... Control thyristor, 4... Transformer, 5... Rectifier, 6... Electrostatic precipitator, 11... Voltage dividing resistor, 12... Detection function selection circuit, 13... Voltage change rate detection circuit, 14... Low Voltage detection circuit, 15... Comparator, 16... dv/dt setter, 17... Pulse shaping circuit.
Claims (1)
直流高電圧を放電電極と集塵電極との間に荷電さ
せるときの火花放電を前記両電極間電圧の変化速
度から検出する電圧変化速度検出手段を有する電
気集塵器において、前記両電極間電圧が設定値以
下の低電圧になるのを検出する低電圧検出手段と
、この両電極間電圧が前記の低電圧設定値よりも
高く定められた検出機能選択電圧を越えるときは
前記電圧変化速度検出手段を選択するとともに検
出機能選択電圧以下に低下するときは前記低電圧
検出手段を選択するように動作する検出機能選択
手段とを備えていることを特徴とする電気集塵器
の火花放電検出回路。 Voltage change rate detection means for detecting spark discharge when a DC high voltage obtained from an AC power supply via a transformer and a rectifier is charged between a discharge electrode and a dust collection electrode from a change rate of the voltage between the two electrodes. In the electrostatic precipitator, there is provided a low voltage detection means for detecting when the voltage between the two electrodes becomes a low voltage below a set value, and a detection means for detecting when the voltage between the two electrodes is set higher than the low voltage set value. and detection function selection means that operates to select the voltage change rate detection means when the voltage exceeds the function selection voltage and select the low voltage detection means when the voltage falls below the detection function selection voltage. Features a spark discharge detection circuit for electric precipitators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3291085U JPS61150060U (en) | 1985-03-08 | 1985-03-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3291085U JPS61150060U (en) | 1985-03-08 | 1985-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61150060U true JPS61150060U (en) | 1986-09-17 |
Family
ID=30534864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3291085U Pending JPS61150060U (en) | 1985-03-08 | 1985-03-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61150060U (en) |
-
1985
- 1985-03-08 JP JP3291085U patent/JPS61150060U/ja active Pending
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