RU2355427C2 - Device for bactericidal air processing - Google Patents

Abstract

FIELD: medical equipment.

SUBSTANCE: invention is intended for disinfection of air in buildings. Device for bactericidal air processing contains source of ultraviolet radiation, focusing element, filter, ventilator, concentrator and hollow mirror light conductor. Filter is made transparent for ultraviolet rays and is placed between ventilator and light conductor. As source of ultraviolet radiation, irradiator on whose surface ultraviolet lamps are mounted, is used, openings for air outlet being made between focusing element and irradiator.

EFFECT: purification of large air volumes from pathogenic microflora in presence of people guaranteeing their safety.

1 dwg

Description

The present invention is intended to destroy any pathogenic microflora and various forms of airborne infection by exposure to concentrated ultraviolet and infrared radiation, providing an instant lethal dose and burning harmful impurities, while eliminating the negative impact on the human visual apparatus.

The present invention consists of a radiator and a concentrator, a refractor, a light guide, a fan and two filters,

The proposed device relates to the field of sanitary hygiene and electrical engineering and can be used for air disinfection in buildings for various purposes.

The prior art. For bactericidal air purification, stationary and portable ultraviolet irradiators, as well as various chemicals are used.

Ultraviolet irradiators for bactericidal treatment of air, due to the diffuse distribution of radiant energy, create a weak and uneven energy field, in which a lethal bactericidal dose is often not provided, which contributes to the mutation of the pathogenic flora, and their “open” exposure has a harmful effect on the human visual apparatus . Partially eliminates this drawback section bactericidal treatment of air in the ventilation system, such as SBOW production "KORF".

Aseptic aerosols and liquids used for disinfection are harmful to humans, have short-term effects and adversely affect the environment.

The invention of the aseptic lighting device for surgical operating rooms is known, which concentrates biologically active sun's rays, which are transmitted through the light guides to the premises: RU 20299 C1, cl. 6FS 19/00 “Lighting device” by V.A. Turulov). A patent for the invention RU 2206340 A, 6119716, 06/20/2003, which partially solves the problem.

The mentioned inventions do not guarantee complete bactericidal purification of indoor air, and adversely affect the human visual apparatus.

The aim of the invention is to provide a device with a large and adjustable energy radiation power with active bactericidal and heat treatment of air in aseptic zones of buildings with unorganized air flows and spaces contaminated with harmful impurities.

Design features. The device consists of a parabolic concentrator 1 and a symmetrically located emitter 2 on the surface of which UV and infrared lamps 3 are mounted (see drawing). The hub 1 is optically connected to the reflector 4, from which the rays enter the mirror fiber 6. The fiber 6 is connected to the hub 1 at the bottom. Openings are provided between element 4 and emitter 2. The entire air purification chamber consists of a specular fiber 6, a filter 7 transparent to ultraviolet rays with electrostatic properties, a supply fan 8 and a coarse filter 9.

Operating principle. In the device, ultraviolet and infrared rays from the emitter 2 are fed to a parabolic concentrator 1 having a mirror inner surface that focuses the radiant flux from the emitter and transfers it to the refractor 4. Reflecting from the refractor 4, the radiant flux, changing its direction, enters the space of the fiber 6 , the inner surface, which has a high reflection coefficient, and penetrates the translucent filter 7.

Bypassing the coarse filter 9, the air through the fan 8 passes through a fine filter 7, which is transparent to ultraviolet rays, which acts as a turbulent of the air flow in the light guide 6 and determines the uniformity of the effect of the rays on the substance being processed. Filter 7 retains dust particles on which pathogenic microflora are present. The translucency of the filter 7 allows the radiant flux to enter the filter and purposefully destroy the delayed substance. In the space of the hollow specular fiber 6, the air is additionally subjected to active processing by concentrated beams repeatedly reflected from the walls of the fiber 6. Purified after processing, the air from the fiber 6, bypassing the space between the concentrator 1 and the emitter 2, through the holes 5 goes out.

Device efficiency. Due to the high concentration of energy in the air treatment chamber, conditions are created in the device for destroying any pathogenic medium, while the dose of air mass can be adjusted by changing the power and spectral ratio of the radiation energy, the properties of the translucent filter 7, the length of the mirror fiber 6 and the air velocity. The degree of translucency of the filter 7 promotes the penetration of the radiant flux and the destruction of substance in it. The air purified in the filter 7 undergoes additional processing with a powerful radiant flux, which is repeatedly reflected in the cavity of the fiber 6 and in the space between the concentrator 1 and the emitter 2. It should also be noted that the combination of ultraviolet and heat treatment of air significantly increases the efficiency of the device.

Depending on the number and power of energy sources (lamps), the size of the hub and the length of the fiber, you can create a high potential energy field, which, taking into account the design features of the device allows you to:

1. During bactericidal treatment of air, ensure a lethal dose for any microorganisms and spores with a very small exposure. Radiation conditions burn any impurities in the air in a relatively short period of time. This allows you to handle large volumes of air in a confined space. High energetic level excludes the survival of pathogenic flora and, consequently, further mutation of bacteria exposed to radiation.

2. In the case of chemical airborne contamination, high-temperature air treatment is carried out with concentrated infrared radiation. Such radiation creates a temperature in the fiber from 500 to 1000 degrees, which completely burns poisonous particles and gases of various chemical composition.

3. Structurally combine the two methods of cleaning the air: ultraviolet and thermal.

4. Use a special air intake device that will make it possible to process air from any infected areas of the building

5. To develop a nomenclature series of plants with different energy power, spectral composition of radiation and the amount of air being treated.

Application area.

A. The device is intended for emergency cleaning of large volumes of air from pathogenic microflora and chemical impurities in rooms for various purposes, including medical, educational and spectacular buildings, as well as in subway halls.

B. The device, having a closed design, unlike existing irradiators, does not affect the human visual apparatus and in this regard allows it to be used indoors in the presence of people.

Claims (1)

A device for bactericidal treatment of air containing an ultraviolet radiation source, a focusing element, a filter and a fan, characterized in that the device is additionally equipped with a hub and a hollow specular optical fiber, the filter is transparent to ultraviolet rays and is located between the fan and the optical fiber, and as an ultraviolet radiation source an emitter is used, on the surface of which UV lamps are mounted, and between the focusing element and the emitter openings for air exit are looked.