RU2461399C2 - Air regeneration cartridge - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to devices for isolating collective respiratory protection. An air regeneration cartridge comprises a body with a regenerative product. The regenerative product contains air ducts. The air ducts are coated with titanium dioxide and additionally comprises UV light sources.

EFFECT: cartridge body comprises a thermoelectric converter coupled with an indicator lamp that ensures regenerated air disinfection from disease-producing microorganisms and impurity disintegration to water vapour and carbon dioxide and enables visual assessment both of a cartridge close moment, and of its approximation.

1 cl, 2 dwg

Description

The invention relates to devices for collective protection of respiratory organs of an insulating type.

Known cartridge for air regeneration used in collective protection devices, comprising a housing and a regenerative product disposed therein. Air ducts are installed in the product, allowing to divide the regenerative product into separate sections. As a result, this solution allows you to create optimal conditions for chemisorption, diffusion, thermal and aerodynamic processes, since air ducts provide the deployment of the surface of the regenerative product along the path of the regenerated air in the cartridge in the outer diffusion and diffusion regions and optimizes the flow distribution in these areas (RF patent No. 2291728 , А62В 19/02, А62В 7/08, 2006).

The cartridge for air regeneration is intended for use indoors in the mode of recirculation of internal air and maintaining normal oxygen and carbon dioxide concentrations in it for breathing a group of people. The number of cartridges needed depends on the number of people in the room.

Lack of ventilation for a long time can contribute to the rapid accumulation and spread in it of impurities of harmful substances, pathogenic bacteria, viruses and infections if patients are present in the group of people or microorganisms were present on the surfaces of the room. The well-known cartridge for air regeneration does not solve the problem of removing harmful impurities and destroying microorganisms.

Another disadvantage of this cartridge is the inability to control its development. The replacement of working cartridges for new ones is carried out according to a given cyclogram built for the design operating conditions, as a result of which not fully used cartridges are replaced during operation.

The objective of the invention is to improve the operational characteristics of the cartridge for air regeneration.

The technical result of the invention is the provision of a cartridge for air regeneration to remove pathogenic bacteria, viruses, infections and harmful impurities from the regenerated air, as well as providing control over its development.

The technical result is achieved by the fact that in the cartridge containing the housing, the regenerative product and the ducts installed in the regenerative product, the ducts are coated with titanium dioxide and UV light sources are installed. A thermoelectric converter is mounted on the cartridge case, connected to an indicator light.

The invention is illustrated in the drawing, where

figure 1 is a General view of a regenerative cartridge;

figure 2 is a section of a regenerative cartridge.

The cartridge for air regeneration consists of a housing (4) with inlet (5) and outlet (1) openings. The cartridge housing contains a regenerative product (8), divided into sections by ducts (6). Ducts (6) are made with the application of titanium dioxide and contain ultraviolet light sources (7) that generate light with a wavelength of 300 - 400 nm. Power sources of ultraviolet light can be carried out from an external source of electricity or from an autonomous source of electricity placed inside the cartridge housing (not shown).

A Peltier thermoelectric element (2) is mounted on the cartridge case (4), which, due to the thermal gradient, as a result of the Seebeck effect (the inverse Peltier effect) generates electricity used to power the light bulb (3).

When the cartridge is turned on, the regenerated air enters through the inlet (5) into the duct (6). Part of the air passes through the regenerative product (8) located in the so-called external diffusion region (10), and the other is washed by the regenerative product (8) located in the diffusion region (9). Next, the regenerated air leaves the cartridge through the outlet (1). As the regenerative product (8) is worked out in the frontal part of the cartridge in the direction of flow, these parts go into the diffusion region operating mode, while in the trailing part of the cartridge the process is carried out both in the external diffusion and in the diffusion regions. A decrease in temperature in the external diffusion region (10) occurs due to heat dissipation through the duct (6).

Sources of UV radiation (7) with a wavelength of 300 - 400 nm ensures the disinfection of regenerated air from pathogens. Photocatalytic reactions occur on the surface of the duct (6) coated with titanium dioxide, as a result of which harmful microimpurities decompose into water vapor and carbon dioxide. The presence of a small amount of water vapor and carbon dioxide in almost the entire volume of the cartridge allows the regenerative product (8) in the middle and trailing layers to begin work at the initial time of operation of the cartridge, which contributes to its more complete development and more even distribution of heat.

The scattered heat flux creates a heat gradient between the cartridge housing (4) and the duct (6), as a result of which the thermoelectric converter (2) generates electricity to power the indicator light (3).

A decrease in the thermal gradient at the end of the cartridge operation and a thermal gradient approaching zero at the completion of chemical reactions lead to a slow damping of the light bulb (3), which allows one to visually evaluate not only the moment the cartridge ends, but also its approximation.

Claims (1)

A cartridge for air regeneration, comprising a housing, a regenerative product and ducts installed in the product, characterized in that the ducts are coated with titanium dioxide, a thermoelectric converter connected to the indicator light is installed on the cartridge housing, and ultraviolet light sources are additionally installed on the ducts.

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