BACTERICIDAL RECIRCULATOR FOR AIR DISINFECTION Russian patent published in 2022 - IPC A61L9/20 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to a bactericidal recirculator for indoor air disinfection from pathogenic microorganisms. Device consists of a closed housing combined with a reflector, inside which there is a source of bactericidal radiation in the form of a mercury discharge lamp, fan for blowing the cleaned air through the internal volume of the housing, the ignition mode control device and the operation of the bactericidal radiation source, wiring accessories for mounting and connecting a bactericidal radiation source to a device for controlling the mode of ignition and operation of the bactericidal radiation source. Recirculator is made in the form of a closed reflector, made with possibility of simultaneously performing functions of a protective housing and an air-conducting channel for disinfected air, from polished anodized aluminum with high coefficient of directed reflection in ultraviolet bactericidal region of radiation, and structurally is made of four coaxial equivalent sectors. Coordinates of points of the reflecting surface of each sector are determined by expressions for coordinate points: X=R*CosA+R*A*SinA, Y=R*SinA-R*A*CosA, Y=R*{CosA*(1-A)+SinA*(1+A)}-X, where: R is the radius of the sweep circle, structurally selected from the condition: R is greater than or equal to the radius of a circle circumscribed around the bactericidal radiation source, A is the angle orienting the corresponding radius vectors, radians. Bactericidal recirculator is made in such a way that the ultraviolet rays emanating from the bactericidal radiation source, after the primary reflection from the reflector, repeatedly fall on the active surface of the reflector, are again reflected, and so forth, excluding uncontrolled falling and their absorption by the bactericidal radiation source and other structural elements of the bactericidal recirculator. Bactericidal recirculator is configured to create a reflector of high volumetric density of the bactericidal radiation flux in the volume of the irradiation chamber, which exceeds the density of the direct radiation flux generated by the bactericidal radiation source itself.

EFFECT: optimizing the design of the device in order to increase the efficiency of the target parameters of the recirculator by using several sources of optical radiation.

8 cl, 10 dwg