Electrostatic precipitator for the collection of particles contained in a gas

Claim 1

An electrostatic precipitator for the collection of particles contained in a gas, wherein said precipitator comprises: a leak-tight chamber of substantial length, a first inlet duct for the admission of gas to be analyzed and a second inlet duct for the supply of ''''clean'''' gas which are located in parallel relation and have their openings at one end of said chamber, at least one outlet duct or third duct located opposite to said first inlet duct at the other end of said chamber, at least two electrodes having different functions being placed within the interior of said chamber, at least one other of said electrodes being a conductive plate located close to that wall of said chamber which is adjacent to the first and third ducts, the geometry of at least one other of said electrodes being such as to produce in conjunction with the conductive plate a corona discharge in the gas which is present within said chamber; deflectors which provide a separation both at the inlet and at the outlet between the gas streams of the ducts while ensuring relative independence between the polluted gas stream which is admitted through the first duct and discharged through the third duct, and the ''''clean'''' gas stream which is admitted through the second duct; a direct-current generator which applies a direct-current potential difference between the electrodes.