| 摘要 |
Air disinfection device comprises a body that houses the power supply and control unit comprising a storage capacitor, a high-voltage DC power supply, an ignition pulse generator, a ferrite-core pulse transformer and a program control unit, and an ultraviolet radiation source mounted on the body in the form of a pulse gas discharge lamp enclosed in a tubular cooled casing transparent to bactericidal radiation. The storage capacitor and the pulse gas discharge lamp form a discharge circuit connected to the ignition pulse generator through the ferrite-core pulse transformer. The pulse gas discharge lamp is installed in a casing transparent to bactericidal radiation with convection air cooling capabilities provided by natural draft produced inside the casing, wherein the casing has one or several upper-level orifices in its upper part and some lower-level orifices in its lower part, with the following ratio of parameters: h ‹ S 2 upper ‹ S 2 lower S 2 upper + S 2 lower = 1 A ‹ C 2 �¢ U 4 0 �¢ F 2
where h is the distance between the orifices of the upper and lower levels, m; S upper -total surface area of the orifice in the upper level, m 2 ; S lower - total surface area of the orifice in the lower level, m 2 ; A = (2 ÷ 30)·10 13 J 2 /m 5 s 2 - power correlation coefficient; C - capacity of energy storage capacitor, F; U 0 - charge voltage of the energy storage capacitor, V; F - pulse repetition rate of the ignition pulse generator, Hz. |
