WO2006125288A1

WO2006125288A1 - Channel for diagnosis of operational conditions and tests of optimization solutions of electrostatic precipitators

Info

Publication number: WO2006125288A1
Application number: PCT/BR2006/000099
Authority: WO
Inventors: José Simões BERTHOUD
Original assignee: Berthoud Jose Simoes
Priority date: 2005-05-23
Filing date: 2006-05-05
Publication date: 2006-11-30
Also published as: BRPI0502637A

Abstract

Channel for diagnosis of operational conditions and tests of optimization solutions of electrostatic precipitators, is a laboratory equipment that simulates a Typical Channel of an Industrial Electrostatic Precipitator, characterized by the fact that its collecting plates [figure 1, (I)] are covered with narrow vertical conducting plates, called segments [figure 1, (3)], isolated electrically between itself and also with relation to the collecting plates by means of special isolating screws [figure 1, (4)], in way that the ionic current arriving in each one of the segments can be measured individually. The acquired discrete ionic currents can be associated to the amount of collected material in each segmented region, since that the ionic charges that form the ionic current travel in the surface of the material, that is, the collected material volume is directly proportional to the ionic current. The bigger the volume of locally collected material the bigger is the probability of occurrence of sparking in this location. That information about this phenomenon is critical for the optimized operation of Precipitator Electrostatic.

Description

Descriptive Report of the Invention Patent: "CHANNEL FOR DIAGNOSIS OF OPERATIONAL CONDITIONS AND TESTS OF OPTIMIZATION SOLUTIONS OF ELECTROSTATIC PRECIPITATORS"

This Invention Patent Request describes a Laboratory Equipment that allows the measurement of Plate Current Distribution along the longitudinal length of an Electrostatic Precipitation Channel, through the installation of vertical conducting segments over the internal walls, being these segments electrically isolated between itself and with relation to the outer plates, where they are fixed by isolating screws of special drawing. Figure I shows the superior sight of the Channel for Diagnosis of Operational

Conditions and Tests of Optimization Solutions of Electrostatic Precipitators, here represented with 6 emitting electrodes, where (1) are the metallic collecting plates, external and continuous, (2) are emitting electrodes, (3) are metallic vertical segments. (4) are special isolating screws. Figure 2 shows a special isolating screw, where (1) is the insulator, (2) is the internal conductor, (3) is the external collecting plate and (4) is part of a vertical segment.

This construction allows that the ionic plate currents, what are the result of the electrically loaded particle migration, be unloaded through the special screws keeping the information of how much current reaches each segment. This form of measurement is totally innovative with relation to the usual procedures, that measure the plate current in a continuous section of the metallic collecting plate. This traditional procedure hinders the attainment of highly important information to the efficient project and operation of an Electrostatic Precipitator.

The Channel for Diagnosis of Operational Conditions and Tests of Optimization Solutions of Electrostatic Precipitators, object of this Invention Patent Request, allows the attainment of the longitudinal distribution of plate currents in one precipitation channel and consequently of the longitudinal distribution of the amount of collected material. This represents a diagnostic that allows to identify the regions along the longitudinal length of the channel where accumulations of collected material occur. The main effect of the located accumulation of collected material along the longitudinal length of the channel is that the sparking will occur also located. As it is of the common knowledge, these sparking limit the Collecting Efficiency of the Electrostatic Precipitator. With the identification in Laboratory of these critical regions, the installation of interrupting keys in the corresponding emission electrodes will be possible. This keying, after programmed and integrated to the System of Control of the Electrostatic Precipitator, it will allow that in the threshold of the located sparking the electrode of this point can be turned off, keeping the remaining electrodes energized, being that such procedure can result in a great increase of Efficiency of Collection.

An Electrostatic Precipitator with this capacity of selective and individual disconnection of emitting electrodes does not exist in the market and for this reason it was object of Invention Patent Request (PI0503469-8, 10 May 2005) on the part of the present author.

Figure 1 shows the superior sight of the Canal of Diagnosis of Operational Conditions and Tests of Solution of Optimization of Electrostatic Precipitators, being there: (1) the metallic collecting plates, external and continuous; (2) emitting electrodes; (3) metallic vertical segment and (4) special isolating screws.

Figure 2 shows one cut of a Special Isolating Screw, being there: (1) the insulator (filled region); (2) the internal conductor; (3) external collecting plate and (4) part of a vertical segment.

Claims

CLAIM

1 -CHANNEL FOR DIAGNOSIS OF OPERATIONAL CONDITIONS AND TESTS OF OPTIMIZATION SOLUTIONS OF ELECTROSTATIC PRECIPITATORS'" is a laboratory equipment that simulates a Typical Channel of an Industrial Electrostatic Precipitator, characterized by the fact that its collecting plates [figure 1, (I)] are covered with narrow vertical conducting plates, called segments [figure 1, (3)], isolated electrically between itself and also with relation to the collecting plates by means of special isolating screws [figure 1, (4)], in way that the ionic current arriving in each one of the segments can be measured individually.