| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to air cleaning systems, namely to electric cleaners and can be used at industrial enterprises, in medicine, kindergartens, educational entities, as well as at home for cleaning air of dust and other impurities. Proposed device comprises power supply, corona-forming electrode, precipitation electrode, and repellant electrodes. Corona-forming electrode represents a rod or wire, precipitation electrode comprises bulge on front edge and band arranged behind said bulge. Precipitation electrodes are arranged in casing to make airflow channels that accommodate aforesaid repellant electrode. Said power supply serves to generate difference of potentials between corona-forming and precipitation electrodes varying from 10 kV to 100 kV and that between repellant and precipitation electrodes determined from ratio below: P=pH, where P is difference of potentials between repellant electrode and precipitation electrode, kV; p is the measure varying from 1 kV/cm to 20 kV/cm; H is minimum distance between repellant and precipitation electrodes, cm. In lengthwise cross section of proposed cleaner, distances from precipitation electrodes to corona-forming electrodes either are equal or vary. Note here that minimum-to-maximum distances ratio us defined from the following relation: Lmin/Lmax=k, where k is the measure varying from 0.5 to 0.9999; Lmin is the minimum distance from precipitation electrodes to corona-forming electrode; Lmax is the maximum distance from precipitation electrodes to corona-forming electrode. Note also that, in lengthwise cross section of electric cleaner, larger surfaces of the precipitation electrode band has crosswise grooves or alternating ledges and recesses, and, in crosswise cross section of electric cleaner, larger surfaces of the precipitation electrode band has crosswise grooves or alternating ledges and recesses. ^ EFFECT: higher efficiency and quality of air cleaning without excess ozone content in cleaned air. ^ 5 cl, 20 dwg |
