MICRO-CHANNEL STRUCTURE PRECIPITATOR FOR PARTICULATE MATTER, PRECIPITATION METHOD, AND MANUFACTURING METHOD THEREOF

摘要

A micro-channel structure precipitator for particulate matter, precipitation method, and manufacturing method thereof. A main body (1) of the precipitator has pores (110) arranged in an array. Inner upper and inner lower walls of the pores (110) are provided with conductive portions (2) made from a conductive material. A conductive film (3) is provided on an outer surface of the pores (110) on the other side opposite to the conductive portions (2). The conductive portions (2) of all pores (110) are electrically connected to form a first electrode. The conductive film (3) is used as a second electrode. The method of the present invention employs an electrostatic coagulation process to trap and collect particulate matter passing through the pores (110). When an air flow passes through a pore (110), the first electrode enables particulate matter in the air flow to be electrically charged, such that coagulation occurs, and the particulate matter is adsorbed on to the inner walls of the pore (110) under the action of a Coulomb force and a magnetic force, completing entrapment and collection of the particulate matter. Compared to the prior art, the precipitator of the present invention has the conductive portions (2) directly disposed within micro-channels formed by the pores (110), and forms, within the micro-channels, a distinctive region having a strong electrical field by directly connecting an electrode of a high-voltage power supply to the conductive portions (2) to increase the intensity of an internal asymmetrical electrical field, thus enhancing the efficiency of electrostatic coagulation and collection, and essentially eliminating the Faraday cage effect.