GB981147A - Improvements in the automatic voltage control of electrical precipitators - Google Patents
Improvements in the automatic voltage control of electrical precipitatorsInfo
- Publication number
- GB981147A GB981147A GB2952963A GB2952963A GB981147A GB 981147 A GB981147 A GB 981147A GB 2952963 A GB2952963 A GB 2952963A GB 2952963 A GB2952963 A GB 2952963A GB 981147 A GB981147 A GB 981147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- output
- voltage
- circuit
- decrease
- electrical
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electrostatic Separation (AREA)
Abstract
981,147. Automatic control of electrical precipitators. H. BRANDT. and A. KRITZLER, [trading as APPARATEBAU ROTHEMUHLE BRANDT, and KRITZLER], July 25, 1963 [July 28, 1962], No. 29529/63. Heading G3R. [Also in Division H2] In an electrical precipitator, a voltage decrease caused by flash-overs between the electrodes is used to determine the variation in voltage which is needed either to increase or decrease that applied across the electrodes to ensure optimum operating conditions. As shown, an electrical precipitator 12 is supplied from an A.C. source R, S by way of a contactor 2<SP>1</SP>, a magnetic amplifier 15, a transformer 10 and a rectifier 11. Voltage and current variations in the precipitator are detected by transformers 36 and 3 connected to a circuit V the output from which moves an aluminium plate F, the arrangement being such that the output from an oscillator circuit 5 including transistors T1, T2 and reactance coils LB, LK associated with the plate F, is proportional to the voltage decrease caused by flash-overs. The output from circuit 5 is applied as a charging current to an integrating circuit, constituted by capacitors K1, K4 and resistor R1, which is simultaneously discharged at a rate determined by adjustment of K4 and R1. Any output from the integrator circuit at lines 8 and 9 is applied over magnetic amplifiers 13 and 14 to the magnetic amplifier 15 the output winding of which applies the necessary increase or decrease in operating voltage to the transformer 10, until the charging and discharging of the integrator circuit reaches equilibrium.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0068229 | 1962-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB981147A true GB981147A (en) | 1965-01-20 |
Family
ID=6975810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2952963A Expired GB981147A (en) | 1962-07-28 | 1963-07-25 | Improvements in the automatic voltage control of electrical precipitators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB981147A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4218225A (en) * | 1974-05-20 | 1980-08-19 | Apparatebau Rothemuhle Brandt & Kritzler | Electrostatic precipitators |
EP0054378A1 (en) * | 1980-12-17 | 1982-06-23 | F.L. Smidth & Co. A/S | Method of controlling operation of an electrostatic precipitator |
DE4111673C1 (en) * | 1991-04-10 | 1992-07-02 | Metallgesellschaft Ag, 6000 Frankfurt, De |
-
1963
- 1963-07-25 GB GB2952963A patent/GB981147A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4218225A (en) * | 1974-05-20 | 1980-08-19 | Apparatebau Rothemuhle Brandt & Kritzler | Electrostatic precipitators |
EP0054378A1 (en) * | 1980-12-17 | 1982-06-23 | F.L. Smidth & Co. A/S | Method of controlling operation of an electrostatic precipitator |
US4659342A (en) * | 1980-12-17 | 1987-04-21 | F.L. Smidth & Co. | Method of controlling operation of an electrostatic precipitator |
DE4111673C1 (en) * | 1991-04-10 | 1992-07-02 | Metallgesellschaft Ag, 6000 Frankfurt, De | |
EP0508509A1 (en) * | 1991-04-10 | 1992-10-14 | METALLGESELLSCHAFT Aktiengesellschaft | Method for determining the optimal number of discharges per time unit Dsn in an electrostatic precipitator |
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