RU2744143C1 - Semi-open device for air disinfection in an air-conditioned room - Google Patents

Abstract

FIELD: ventilation systems and air disinfection.SUBSTANCE: invention relates to the field of ventilation systems and air disinfection. A semi-open device for air disinfection in an air-conditioned room for joint operation with a split-room system contains a section that emits ultraviolet radiation by means of at least one built-in source of ultraviolet radiation. The section, which emits ultraviolet radiation, contains an inlet air flow sensor to determine the speed of the incoming air flow when the split system is turned on. The section also includes a device for controlling UV sources connected with UV radiation sources.The section, which emits ultraviolet radiation, is made of material that blocks ultraviolet radiation and is made open along the axis of movement of the inlet air flow into the split-system of the conditioned room. A screen is attached to the section emitting ultraviolet radiation which directs the output air flow to the upper part of the room and in which additional sources of ultraviolet radiation and an output air flow sensor are installed to determine the speed of the incoming air flow when the split system is turned on. A control device for additional sources of ultraviolet radiation is also a part of the screen. The screen is made of material that blocks ultraviolet radiation. The section, which emits ultraviolet radiation, and the screen have design capabilities that allow you to change their dimensions in accordance with the dimensions of the split system of the air-conditioned room installed between them.EFFECT: invention makes it possible to safely use room-type air conditioners in confined spaces from the point of view of sanitary and epidemiological requirements on the basis of technical means that have low complexity, small size and disinfecting performance consistent with the performance of the room-type air conditioners used.1 cl, 1 dwg

Description

The invention relates to the field of ventilation and air cooling systems and can be used for safe cooling of premises using room-type air conditioners (split systems).

In the context of a pandemic of highly contagious viral and bacterial infections, room cooling using room-type air conditioners is limited for sanitary and epidemiological reasons. In particular, in the guidelines (1 - Guidelines for infection. Fifth version // Website of the Ministry of Health of the Russian Federation) it is noted that in areas of high risk of spread of infection caused by COVID-19, the use of room-type air conditioners (split systems) should be excluded, since they actually increase the risk of infection, since they contribute to maintaining high concentrations of infectious aerosol while blocking natural ventilation. The use of various types of recirculating air purifiers, including those with a source of ultraviolet radiation inside, is not an effective measure to reduce the risk of spreading airborne infections, including COVID-19, due to insufficient performance (frequency of air exchange in the room).

The device of a pulsed gas-discharge lamp is known according to the patent for utility model No. 103668 (2 - Patent for utility model No. 103668 Pulse gas-discharge lamp) and patent (3 - Patent of the Russian Federation No. 2673062, IPC: (2006.01) H01J 63/02, (2006.01) H01J 5 / 02. Pulsed gas discharge lamp. Patentee - Scientific and Production Enterprise "Melitta" Ltd. Arkhipov VP, Goldstein Ya.A., Kireev SG, Pugachev D.Yu., Tumashevich K.A., Shashkovsky S.G. Publ. - November 22, 2018), containing a flask made of a material transparent in the ultraviolet region of the spectrum and electrodes installed at the ends of the flask, while the flask is filled with a plasma-forming medium based on xenon. The device allows you to generate high-intensity pulsed radiation, primarily in the ultraviolet, especially in the bactericidal region of the spectrum. The device of a pulsed gas-discharge lamp can be used for photochemical cleaning and disinfection of premises from resistant forms of microorganisms.

The disadvantage of the device [2], [3] is insufficient performance to effectively reduce the risk of the spread of airborne infections, including COVID-19, in enclosed spaces using room-type air conditioners (split systems), as well as the impossibility of using it when people are in the room.

Known device for a ventilated air recirculator according to the patent (4 - RF Patent No. 2600792, IPC: (2006.01) A61D 9/20. Ventilated air recirculator. Patent holders - FGBOU VO Stavropol GAU, FGBNU "VNIIVSGE", V.F. ., Morozov V.Yu., Prokopenko A.A., Kolesnikov PO, Yuferev L.Yu., Alferova L.K., Novikova S.I., Ivanov D.V., Samoilenko V.V., Sklyarov S. P .. Publ. - 10/27/2016), containing an air filter connected to the air inlet, a fan, a chamber with ultraviolet lamps, an air humidity sensor, a water pump, a hydraulic chamber, which is equipped with a hydraulic manifold with a return pipe, with built-in into the body of the hydraulic chamber with spray nozzles, a drainage trough, the inlet of which is connected to the body of the hydraulic chamber and is made under the nozzles, and the outlet of the drainage trough is connected to the inlet of the water filter, the outlet of the latter is connected to the inlet of the water pump, and the outlet of the water pump is connected to the return path bkom, which is connected to a hydraulic manifold.

The device allows due to the fact that the ventilated air recirculator is additionally equipped with a closed hydraulic system, as well as an air humidity sensor, a hydraulic manifold that distributes the disinfecting anolyte to spray nozzles, to improve the quality and environmental safety of bactericidal treatment of recirculated air in closed rooms.

The disadvantage of the device [4] is its high complexity, large size and insufficient performance to ensure effective reduction of the risk of spreading airborne infections, including COVID-19, in confined spaces using room-type air conditioners (split systems).

A device for air disinfection is known (5 - RF Patent No. 2153886, IPC: (2006.01) A61L 9/20. A device for air disinfection. Patent holder and author Sizikov V.P. Publ. - 08/10/2000), containing a housing with an inlet and outlet windows, in which an irradiation chamber is formed with longitudinally placed low-pressure gas-discharge mercury (bactericidal) lamps, provided with labyrinth screens at the inlet and outlet, and a fan and a filter are installed.

The disadvantage of this device is the uneven treatment of the air circulating in the irradiation chamber with a bactericidal radiation flow, due to the design features of the labyrinth screens, as well as the high complexity, large size and insufficient performance to effectively reduce the risk of spreading airborne infections, including COVID-19, in enclosed spaces using room-type air conditioners (split systems).

A humidifier with improved UV disinfection is known (6 - Patent EP 1600702 A2, IPC: (2006.01) A61L 2/10. Humidier with improved UV disinfection. Patent holder Slant / Fin Corporation. Bachert K. Publ. 30.11. 2005), in which the result is achieved by recirculating water along a tube along a helical path through the UV block.

The disadvantage of this device is that it does not meet the stated requirements, since the generated aerosol is clean from microorganisms, but does not have the ability to disinfect the air, in addition, the device has a high complexity, large size and insufficient performance to effectively reduce the risk of spreading airborne infections , including COVID-19, in confined spaces using room-type air conditioners (split systems).

A device for bactericidal air treatment is known (7 - RF Patent No. 2355427, IPC: (2006.01) A61L 9/20. A device for bactericidal air treatment. Patentee and author: Turulov VA), containing an ultraviolet radiation source, a focusing element, a filter and a fan, characterized in that the device is additionally equipped with a concentrator and a hollow mirror light guide, the filter is made transparent for ultraviolet rays and is located between the fan and the light guide, and an emitter is used as an ultraviolet radiation source, on the surface of which ultraviolet lamps are mounted, and between the focusing element and the radiator has openings for air outlet.

The disadvantage is that the device for bactericidal air treatment has high complexity, large size and insufficient performance to effectively reduce the risk of the spread of airborne infections, including COVID-19, in enclosed spaces using room-type air conditioners (split systems).

Known device for a high intensity air purifier (8 - US Patent No. US 8734724, IPC A61L 9/20. High intensity air purifier. Patent holder: Blutec, LLC, Las Vegas, NV. Engelhard Rolf, Prescott. Publ. 05/27/2014), containing an air filter connected to the air inlet, a fan, a camera with ultraviolet lamps.

The disadvantage of this device is the low ability to disinfect the air, this is due to the fact that the circulating air in the device is unevenly processed by the ultraviolet radiation flux, where a weak and uneven energy field is created, in which a lethal bactericidal dose is often not provided, which contributes to the mutation of pathogenic flora, and the presence of filters, a catalytic converter and an ultraviolet lamp is not enough to sanitize the passing air, which explains the low efficiency. In addition, the device has high complexity, large size and insufficient performance to effectively reduce the risk of spreading airborne infections, including COVID-19, in enclosed spaces using room-type air conditioners (split systems).

Known device screens for wall air conditioners (9 - Screens for wall air conditioners. // Internet site: www.ekran-otrazhatel.ru/dla-nastennih-conditionerov), made of transparent, impact-resistant plastic with wall mountings, adjustable in height.

The device allows the outlet air flow of wall mounted air conditioners to be directed to a specified area.

The disadvantage of this device is the lack of the ability to disinfect the air.

A device for air purification is known (10 - RF Patent No. 2280473, IPC: (2006.01) A61L 9/20, A61L 9/00, A61L 9/01, B60H 3/00, F24F 3/16. Method and device for air purification. Patentee - Microdinics Technologies LTD. Hall F. Publ. 27.07.2006), taken as a prototype.

It includes a means for removing air from an enclosed space, an air duct for guiding the exhaust air through the unit, including a section emitting ultraviolet radiation by means of a built-in at least one ultraviolet radiation source, designed to irradiate the exhaust air with subsequent return to an air intake made with the ability to communicate with a closed room, and an air flow conditioning section, which includes at least one filter for filtering the exhaust air and a section for dividing the air flow for passing it along several different paths to create turbulence in the air flow and pre-sterilization, while at least , one of the block surfaces is coated with an antimicrobial agent.

The disadvantages of the prototype device are the high complexity, large size and insufficient performance to effectively reduce the risk of the spread of airborne infections, including COVID-19, in enclosed spaces using room-type air conditioners (split systems).

A technical problem is the lack of technical means that simultaneously have low complexity, small size and disinfecting performance, consistent with the performance of room-type air conditioners (split systems) used in confined spaces.

To solve the technical problem, a semi-open type device is proposed for disinfecting air in an air-conditioned room, which includes a section that emits ultraviolet radiation by means of at least one built-in source of ultraviolet radiation.

According to the invention, in addition, in the section emitting ultraviolet radiation, an inlet air flow sensor with a control device for ultraviolet radiation sources is installed, connected to the sources of ultraviolet radiation, the section emitting ultraviolet radiation is made of a material that does not transmit ultraviolet radiation and is made open along the axis movement of the inlet air flow into the split system of the air-conditioned room, to the section emitting ultraviolet radiation, a shield is connected with a fastener, in which additional sources of ultraviolet radiation are installed and an outlet air flow sensor with a device for controlling additional sources of ultraviolet radiation, the screen is made of a material that does not transmit ultraviolet radiation radiation, the section emitting ultraviolet radiation, and the screen have design possibilities that allow them to change their dimensions, in accordance with the dimensions installed between mi split-system air-conditioned rooms.

The technical result is the ability to safely use room-type air conditioners (split systems) in confined spaces from the point of view of sanitary and epidemiological requirements based on technical means that simultaneously have low complexity, small size and disinfecting performance, consistent with the performance of the room-type air conditioners (split systems) ).

The combination of distinctive features and properties of the proposed device is not known from the literature, therefore it meets the criteria of novelty and inventive step.

FIG. a diagram of a semi-open type device for air disinfection in an air-conditioned room is shown.

The device includes:

1 - section emitting ultraviolet radiation by means of a built-in at least one source of ultraviolet radiation;

2 - sensor of the inlet air flow with a device for controlling the sources of ultraviolet radiation;

3 - sources of ultraviolet radiation;

4 - screen;

5 - sensor of the output air flow with a control device for additional sources of ultraviolet radiation;

6 - additional sources of ultraviolet radiation;

7 - mount.

A semi-open type device for disinfecting air in an air-conditioned room contains a section 1 emitting ultraviolet radiation, in which an input air flow sensor with a control device for ultraviolet radiation sources 2 is installed, connected to the sources of ultraviolet radiation 3, section 1 emitting ultraviolet radiation is made of material, not transmitting ultraviolet radiation, and is made open along the axis of movement of the inlet air flow into the split system of the air-conditioned room, to the section 1 emitting ultraviolet radiation, a shield 4 is connected by fastener 7, in which additional sources of ultraviolet radiation 6 and an outlet air flow sensor with a device control of additional sources of ultraviolet radiation 5, the screen 4 is made of a material that does not transmit ultraviolet radiation, the section 1 emitting ultraviolet radiation and the screen 4 have design possibilities ness, allowing you to change their dimensions in accordance with the dimensions of the split-system of the air-conditioned room installed between them.

A semi-open type device for air disinfection in an air-conditioned room works as follows.

When mounting with fastening 7, section 1 emitting ultraviolet radiation and screen 4 are installed on the split system in accordance with its dimensions. When the split-system of the air-conditioned room is switched on to the air flow rate set by the user, the input air flow sensor with the UV source control device 2 measures this speed and switches on the required number of UV radiation sources 3 corresponding to this speed, providing sufficient in terms of sanitary and epidemiological requirements. the level of air disinfection.

Also, when the split system of the air-conditioned room is turned on, the outlet air flow sensor with a control device for additional UV radiation sources 5 measures the air flow rate corresponding to the mode set by the user, and switches on the required number of additional UV radiation sources 6 corresponding to this speed, providing, from the point of view of sanitary epidemiological requirements, a sufficient level of air disinfection.

In this case, since the screen 4 only directs the outlet air flow to the upper part of the room, the disinfection performance is determined by the user-specified operating mode of the split system, i.e. the disinfecting capacity of the outlet air flow is consistent with the capacity of the used air conditioner.

Since the section 1, emitting ultraviolet radiation, and the screen 4 have design possibilities that allow them to change their dimensions in accordance with the dimensions of the split system of the air-conditioned room installed between them, the functioning of the sources of ultraviolet radiation 3 and additional sources of ultraviolet radiation 6 is ensured without the direct flow of ultraviolet radiation. radiation into the eyes of people, therefore, the conditions for finding people in the room are not violated.

Thus, the proposed device, relative to the prototype device, allows safe, from the point of view of sanitary and epidemiological requirements, to use room-type air conditioners (split systems) in enclosed spaces based on technical means that simultaneously have low complexity, small size and disinfecting performance. coordinated with the performance of the used room-type air conditioners (split systems).

Claims (1)

A semi-open type device for air disinfection in an air-conditioned room for joint operation with a split-system of the room, containing a section that emits ultraviolet radiation through at least one built-in source of ultraviolet radiation, characterized in that in addition to the section emitting ultraviolet radiation, an inlet air flow sensor is installed , to determine the speed of the incoming air flow when the split system is turned on, with a device for controlling the sources of ultraviolet radiation associated with the sources of ultraviolet radiation, the section emitting ultraviolet radiation is made of a material that does not transmit ultraviolet radiation, and is made open along the axis of movement of the inlet air flow into split-system of the conditioned room, to the section emitting ultraviolet radiation, a screen is connected by fixing, directing the output air flow to the upper part of the room, in which up to additional sources of ultraviolet radiation and an outlet air flow sensor, for determining the speed of the incoming air flow when the split system is turned on, with a device for controlling additional sources of ultraviolet radiation, the screen is made of a material that does not transmit ultraviolet radiation, the section emitting ultraviolet radiation and the screen have design capabilities , allowing you to change their dimensions in accordance with the dimensions of the split-system of the air-conditioned room installed between them.

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