ES2800350A1 - COMPLEMENTARY FOR COMBINED USE ALTERNATIVE DOUBLE FUNCTION UVC RADIATION EMITTER (Machine-translation by Google Translate, not legally binding) - Google Patents
COMPLEMENTARY FOR COMBINED USE ALTERNATIVE DOUBLE FUNCTION UVC RADIATION EMITTER (Machine-translation by Google Translate, not legally binding) Download PDFInfo
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- ES2800350A1 ES2800350A1 ES202030770A ES202030770A ES2800350A1 ES 2800350 A1 ES2800350 A1 ES 2800350A1 ES 202030770 A ES202030770 A ES 202030770A ES 202030770 A ES202030770 A ES 202030770A ES 2800350 A1 ES2800350 A1 ES 2800350A1
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- 230000005855 radiation Effects 0.000 title claims abstract description 46
- 230000000295 complement effect Effects 0.000 title claims abstract description 14
- 244000052769 pathogen Species 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 6
- 206010073306 Exposure to radiation Diseases 0.000 claims abstract description 4
- 230000008030 elimination Effects 0.000 claims abstract description 4
- 238000003379 elimination reaction Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims abstract description 4
- 230000002035 prolonged effect Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 6
- 230000002441 reversible effect Effects 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000036541 health Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000025721 COVID-19 Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 241000712461 unidentified influenza virus Species 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
DESCRIPCIÓNDESCRIPTION
Complemento para emisor de radiación uvc de doble función alternativa de uso combinadoCombination use alternative dual function uvc radiation emitter add-on
Objeto de la Invención:Object of the Invention:
Complemento para un sistema emisor de radiación electromagnética de onda mayoritaria UVc, para instalar en recintos, caracterizado por permitir la emisión de radiación de forma prolongada mediante dos funcionalidades alternativas de uso combinado; o reduce el número de patógenos en el aire del recinto con presencia de personas sin necesidad de protección; o reduce el número de patógenos en las superficies del recinto mediante su exposición directa a la radiación.Complement for a UVc majority wave electromagnetic radiation emitter system, to be installed in enclosures, characterized by allowing the emission of radiation for a long time through two alternative functionalities of combined use; o reduces the number of pathogens in the air of the room with the presence of people without the need for protection; o reduces the number of pathogens on the surfaces of the enclosure through direct exposure to radiation.
No tiene la función de desinfección de un recinto, entendida como la eliminación total de los patógenos que contiene, y para la que resulta necesario el uso de sistemas tecnológicos mucho más complejos. La utilidad del complemento reside en que se fabrica con tecnología muy sencilla y reduce el riesgo de transmisión de patógenos por el aire y las superficies del recinto, mediante la reducción del número de patógenos existentes en ellos como consecuencia del uso combinado y repetido de las dos funcionalidades alternativas.It does not have the function of disinfection of an enclosure, understood as the total elimination of the pathogens it contains, and for which the use of much more complex technological systems is necessary. The usefulness of the supplement lies in the fact that it is manufactured with very simple technology and reduces the risk of transmission of pathogens through the air and the surfaces of the enclosure, by reducing the number of pathogens existing in them as a result of the combined and repeated use of the two alternative functionalities.
ntecedentes:Background:
La radiación electromagnética de onda mayoritaria UVc afecta al material genético de los virus, bacterias y hongos; modificando sus enlaces químicos entre las dos cadenas del ADN, de forma que les inactiva, impidiendo su reproducción posterior, tanto en el exterior como en el interior de los seres infectados. Asimismo, reduce el número de estos seres que se encuentran en el volumen de aire o sobre la superficie donde incide dicha radiación, teniendo una utilidad clara en la reducción de transmisión de patógenos.UVc majority wave electromagnetic radiation affects the genetic material of viruses, bacteria and fungi; modifying its chemical bonds between the two DNA chains, in such a way that it inactivates them, preventing their subsequent reproduction, both outside and inside infected beings. Likewise, it reduces the number of these beings that are found in the volume of air or on the surface where said radiation hits, having a clear utility in reducing the transmission of pathogens.
Existen numerosos estudios que acreditan esta utilidad, indicando a modo informativo y no exhaustivo los siguientes:There are numerous studies that prove this usefulness, indicating the following as informative and not exhaustive:
- Jensen MM. 1964. Inactivation of airborne viruses by ultraviolet irradiation. Appl.- Jensen MM. 1964. Inactivation of airborne viruses by ultraviolet irradiation. Appl.
Microbiol. 12:418-420. Microbiol. 12: 418-420.
- Kowalski WJ, Bahnfleth WP, Witham DL, Severin BF, Whittam TS.2000. Mathematical modeling of ultraviolet germicidal irradiation for air disinfection. Quant. Microbiol. 2:249 -270.- Kowalski WJ, Bahnfleth WP, Witham DL, Severin BF, Whittam TS. 2000. Mathematical modeling of ultraviolet germicidal irradiation for air disinfection. Quant. Microbiol. 2: 249-270.
- Aerosol Susceptibility of Influenza Virus to UV-C Light. James J. McDevitt,a Stephen N. Rudnick,a and Lewis J. Radonovichb. Harvard School of Public Health, Boston, Massachusetts, USA,a and National Center for Occupational Health and Infection Control, Veterans Health Administration, Gainesville, Florida, USAb- Aerosol Susceptibility of Influenza Virus to UV-C Light. James J. McDevitt, a Stephen N. Rudnick, a and Lewis J. Radonovichb. Harvard School of Public Health, Boston, Massachusetts, USA, a and National Center for Occupational Health and Infection Control, Veterans Health Administration, Gainesville, Florida, USAb
En la eficacia de un emisor de radiación UVC influyen varios factores, cómo son los distintos grados de resistencia a la radiación de cada patógeno, las condiciones de humedad relativa del aire, la cantidad de partículas en suspensión; o sobre una superficie, y el grado de porosidad o irregularidad de una superficie. Según estos factores, es necesario aplicar una determinada cantidad de radiación en un tiempo menor que el de recuperación de los patógenos, para que se produzca una reducción de su número.Several factors influence the effectiveness of an emitter of UVC radiation, such as the different degrees of resistance to radiation of each pathogen, the relative humidity conditions of the air, the amount of suspended particles; or on a surface, and the degree of porosity or irregularity of a surface. According to these factors, it is necessary to apply a certain amount of radiation in a shorter time than the recovery time of the pathogens, so that there is a reduction in their number.
Esta radiación también afecta al material genético de otros seres vivos, y a corto plazo, una determinada cantidad de radiación puede producir lesiones en los ojos y en la piel de las personas. El grado de afección depende de la cantidad de radiación y de la longitud de onda, así las longitudes de onda próximas a UV-222nm minimizan los efectos nocivos y aquellas próximas a los UV-254nm los agudizan, pero estas últimas son más eficaces en la reducción del número de patógenos.This radiation also affects the genetic material of other living beings, and in the short term, a certain amount of radiation can cause damage to the eyes and skin of people. The degree of affection depends on the amount of radiation and the wavelength, so the wavelengths close to UV-222nm minimize the harmful effects and those close to UV-254nm exacerbate them, but the latter are more effective in the reduction in the number of pathogens.
Otra cuestión importante, es que las longitudes de onda UV-100 a 240 nm afectan en cierto grado a las moléculas de oxígeno O2 transformándolas en moléculas de Ozono O3, que en cierta cantidad puede considerarse un contaminante del aire del recinto. Por otro lado, las longitudes de onda UV-240 a 315 invierten la situación, transformando las moléculas de Ozono O3 en moléculas de oxígeno O2, que son necesarias para la respiración de los seres vivos.Another important issue is that the UV-100 wavelengths at 240 nm affect the oxygen O2 molecules to some degree, transforming them into Ozone O3 molecules, which in a certain amount can be considered a pollutant of the air in the room. On the other hand, UV-240 to 315 wavelengths reverse the situation, transforming Ozone O3 molecules into oxygen O2 molecules, which are necessary for the respiration of living beings.
Según lo expuesto, los emisores de radiación UV-254 nm o próximos parecen los más adecuados para utilizar en el complemento propuesto, pero puede funcionar con cualquier emisor de radiación para el que resulte opaco el material de la envolvente. Based on the above, UV-254 nm or close emitters seem the most suitable for use in the proposed complement, but it can work with any radiation emitter for which the envelope material is opaque.
escripción de la Invención:Description of the Invention:
Es un complemento para un sistema emisor de radiación electromagnética de onda mayoritaria UVc, tiene forma exterior sensiblemente prismática, su interior está hueco y permite instalar un sistema emisor de radiación UVc (1). Está fabricado con material opaco a la radiación -metal, madera, plástico, etc.-, formando una envolvente que contiene una cámara de aire en torno al emisor (2), que dispone de dos aberturas, cada una situada en una de las bases del prisma (3)(4).It is a complement to a UVc majority wave electromagnetic radiation emitting system, it has a substantially prismatic exterior shape, its interior is hollow and it allows installing a UVc radiation emitting system (1). It is made of material that is opaque to radiation -metal, wood, plastic, etc.-, forming an envelope that contains an air chamber around the emitter (2), which has two openings, each one located in one of the bases. of the prism (3) (4).
La envolvente dispone de partes móviles (5)(6) que en posición abierta permiten exponer las superficies del recinto a la radiación directa del emisor. En posición cerrada, la radiación resulta contenida por la envolvente y aplicada sobre el aire del recinto en circulación dentro de la cámara mediante un sistema de impulsión (7)-ventilador, compresor, etc.- que introduce el aire por una abertura y lo expulsa por la otra. El sentido de circulación del aire dentro de la cámara es reversible, alternándose entrada con salida según los condicionantes de uso del recinto.The enclosure has moving parts (5) (6) that in the open position allow the surfaces of the enclosure to be exposed to direct radiation from the emitter. In the closed position, the radiation is contained by the envelope and applied to the air in the enclosure circulating inside the chamber by means of a drive system (7) -a fan, compressor, etc.- that introduces the air through an opening and expels it on the other. The direction of air circulation inside the chamber is reversible, alternating inlet and outlet according to the conditions of use of the enclosure.
Las aberturas están caracterizadas por disponer de elementos para contención de radiación (8), mediante cambios de dirección en el recorrido del aire realizados con material opaco y baja reflexión a la radiación, de forma que obstruyen la propagación rectilínea de la radiación directa y absorben la reflejada de forma significativa.The openings are characterized by having elements to contain radiation (8), by means of changes of direction in the air path made with opaque material and low reflection to radiation, so that they obstruct the rectilinear propagation of direct radiation and absorb the reflected in a meaningful way.
La junta de las partes móviles está caracterizada por disponer de una protuberancia opaca a la radiación (9) que en posición cerrada permite tener un plano perpendicular a la dirección de propagación rectilínea de la radiación, de forma que resulta contenida de forma significativa.The joint of the moving parts is characterized by having a radiation-opaque protrusion (9) that in the closed position allows a plane perpendicular to the direction of rectilinear propagation of the radiation, so that it is significantly contained.
Funcionamiento:Functioning:
El complemento para el sistema emisor de radiación electromagnética de onda mayoritaria UVc tiene dos funcionamientos alternativos; uno de ellos reduce el número de patógenos en el aire con presencia de personas sin necesidad de protección; y el otro reduce el número de patógenos en las superficies del recinto. The complement for the UVc majority wave electromagnetic radiation emitting system has two alternative functions; one of them reduces the number of pathogens in the air with the presence of people without the need for protection; and the other reduces the number of pathogens on the surfaces of the enclosure.
Es preciso señalar, que el complemento no tiene la función de desinfección de un recinto, entendida como la eliminación total de los patógenos que contiene. Su utilidad reside en la reducción del riesgo de transmisión de patógenos por el aire y las superficies del recinto, mediante la reducción del número de patógenos existentes en ellos al aplicarles una determinada cantidad de radiación UVc.It should be noted that the supplement does not have the function of disinfection of an enclosure, understood as the total elimination of the pathogens it contains. Its usefulness lies in reducing the risk of transmission of pathogens through the air and on the surfaces of the enclosure, by reducing the number of pathogens existing in them by applying a certain amount of UVc radiation to them.
- La cantidad de radiación objetivo sobre las superficies del recinto, se realiza con las partes móviles de la envolvente en posición abierta, de forma que el emisor de radiación incide directamente sobre dichas superficies. Para un emisor constante se establece; en función de la distancia y el ángulo de incidencia sobre la superficie; un tiempo de exposición que permite acumular la radiación necesaria para reducir el número de patógenos en el grado pretendido.- The amount of target radiation on the surfaces of the enclosure is carried out with the moving parts of the enclosure in the open position, so that the radiation emitter falls directly on said surfaces. For a constant emitter it is established; as a function of the distance and the angle of incidence on the surface; an exposure time that allows the accumulation of the radiation necessary to reduce the number of pathogens to the desired degree.
- La cantidad de radiación objetivo sobre el aire del recinto, se realiza con las partes móviles de la envolvente en posición cerrada, de forma que el emisor incide solo sobre el aire del recinto que se encuentra circulando dentro de la cámara por acción del sistema de impulsión. Para un emisor constante, se establece un caudal de aire cuya velocidad de desplazamiento en el interior de la cámara se corresponde con el tiempo de exposición que permite acumular la radiación necesaria para reducir el número de patógenos en el grado pretendido.- The amount of target radiation on the air of the enclosure is carried out with the moving parts of the enclosure in the closed position, so that the emitter only affects the air of the enclosure that is circulating inside the chamber by action of the system of impulsion. For a constant emitter, an air flow is established whose speed of movement inside the chamber corresponds to the exposure time that allows the necessary radiation to accumulate to reduce the number of pathogens to the desired degree.
Esta doble funcionalidad permite que el sistema emisor de radiación pueda ser utilizado de forma significativamente continua para reducir el número de patógenos existentes en el recinto. Dado que la envolvente en posición cerrada es capaz de contener la radiación, el emisor puede estar actuando sobre el aire del recinto, a la vez que está ocupado por personas sin protección. Cuando el recinto no va a estar ocupado por personas con protección; durante la noche, hora de descanso, etc.; se actúa sobre las superficies abriendo la envolvente un tiempo determinado, durante el cual se impide el acceso a personas sin protección. La apertura de la envolvente puede realizarse:This dual functionality allows the radiation emitting system to be used significantly continuously to reduce the number of pathogens in the room. Since the enclosure in the closed position is capable of containing radiation, the emitter may be acting on the air in the room, while it is occupied by unprotected people. When the enclosure is not going to be occupied by people with protection; during the night, rest time, etc .; the surfaces are acted upon by opening the enclosure for a certain time, during which access to unprotected persons is prevented. The opening of the enclosure can be done:
- sin apagado del emisor de radiación: mediante una apertura y cierre manual de la envolvente realizado por una persona con protección, o mediante una apertura y cierre motorizada de la envolvente con accionamiento desde el exterior del recinto por una persona sin protección. - without turning off the radiation emitter: by manual opening and closing of the enclosure carried out by a person with protection, or by means of a motorized opening and closing of the enclosure operated from outside the enclosure by an unprotected person.
- con apagado del emisor de radiación: mediante sistema diferido en el tiempo de encendido y apagado del emisor, realizado por una persona sin protección.- with radiation emitter shutdown: by means of a system delayed in the time of switching on and off of the emitter, carried out by an unprotected person.
En cualquier caso, se considera preciso un sistema que evite la exposición de radiación por apertura accidental de la envolvente, que puede ser una cerradura, un sensor de apertura o un sensor combinado de apertura y presencia. Asimismo, dado que la radiación UVc no está dentro del espectro visible humano, se considera preciso la instalación de un sistema de advertencia acústica o luminosa del funcionamiento del emisor.In any case, a system that prevents radiation exposure due to accidental opening of the enclosure is considered necessary, which can be a lock, an opening sensor or a combined opening and presence sensor. Also, since UVc radiation is not within the human visible spectrum, the installation of an acoustic or light warning system of the operation of the emitter is considered necessary.
La utilidad del complemento reside en que se fabrica con tecnología muy sencilla y puede reducir el riesgo de transmisión de patógenos por el aire y las superficies del recinto, mediante la reducción del número de patógenos existentes en ellos como consecuencia del uso combinado y prolongado de las dos funcionalidades alternativas.The usefulness of the complement lies in the fact that it is manufactured with very simple technology and can reduce the risk of transmission of pathogens through the air and the surfaces of the enclosure, by reducing the number of pathogens existing in them as a result of the combined and prolonged use of the two alternative functionalities.
Descripción de una realización practica de la invención:Description of a practical embodiment of the invention:
Se toma como referencia la situación actual, con pandemia declarada por la Organización Mundial de la Salud (OMS) desde marzo 2020, por SARS-COV-2 que causa la Covid-19; con riesgo de transmisión por contacto directo con patógenos en superficies y según reciente comunicado de julio 2020 también con riesgo de transmisión en recintos cerrados y con recirculación de aire. Asimismo, se considera la hipótesis agravante de combinación con epidemia de gripe anual, que precisa un tratamiento más exigente.The current situation is taken as a reference, with a pandemic declared by the World Health Organization (WHO) since March 2020, due to SARS-COV-2 that causes Covid-19; with risk of transmission by direct contact with pathogens on surfaces and according to a recent statement of July 2020 also with risk of transmission in closed rooms and with recirculation of air. Likewise, the aggravating hypothesis of combination with an annual influenza epidemic, which requires more demanding treatment, is considered.
Se establece una dosis objetivo de radiación UVc 254nm de 40mJ/cm2 en superficies y 20mJ/cm2 en aire; que se corresponde con una reducción del 90% de los patógenos de la gripe cada vez que se realiza un ciclo de funcionalidades alternadas. ( Wladyslaw Kowalski. Ultraviolet Germicidal Irradiation Handbook. UVGI for A ir and Surface Disinfection. SPRINGER.) A target dose of 254nm UVc radiation of 40mJ / cm2 is established on surfaces and 20mJ / cm2 in air; which corresponds to a 90% reduction in influenza pathogens each time a cycle of alternate functionalities is performed. ( Wladyslaw Kowalski. Ultraviolet Germicidal Irradiation Handbook. UVGI for A ir and Surface Disinfection. SPRINGER.)
Los criterios determinantes del diseño del complemento ejemplo, son la sencillez de fabricación, coste mínimo de los materiales, y su uso en un recinto para reunión de personas de tipología frecuente en edificios.The determining criteria for the design of the example complement are the simplicity of manufacture, the minimum cost of materials, and its use in an area for meeting people of a frequent type in buildings.
El complemento se diseña para ser instalado en la pared larga de un recinto que tiene 8 metros de largo por 5 de ancho y 3m de altura. Se corresponde con una superficie de 40m2 y un volumen de 120m3. Se estima una humedad relativa del 50%, temperatura de 25°C y velocidad del aire en el interior de la cámara menor de 0,5m/seg.The complement is designed to be installed on the long wall of an enclosure that is 8 meters long by 5 meters wide and 3 meters high. It corresponds to an area of 40m2 and a volume of 120m3. A relative humidity of 50%, a temperature of 25 ° C and an air speed inside the chamber less than 0.5m / sec are estimated.
El sistema emisor de radiación UVc tiene una potencia 25W en longitud de onda mayoritaria 254nm y construcción en doble cilindro paralelo 20-40mm / largo 600mm.The UVc radiation emitting system has a power of 25W in the majority wavelength 254nm and construction in double parallel cylinder 20-40mm / length 600mm.
La forma de la envolvente elegida es la de un prisma recto de base triangular con lados a 45° y 90°, fabricado en chapa de acero 2mm plegada y soldada. La chapa de acero es completamente opaca a la radiación, pero puede reflejarla, para evitarlo se pinta con esmalte rugoso oscuro de forma que adquiere un grado de reflexión inferior al 10%. El interior de la cámara; partes fijas y móviles; se reviste con aluminio anodizado y capacidad reflectante del 80% para aprovecha al máximo la potencia radiante, que resulta ser de 20W con las partes móviles abiertas; para superficies; y de 25W dentro de la cámara; para aire. El recorrido del aire se considera con entrada inferior y salida superior, ambas de 32cm2, y una cámara radiante de 130cm2 de sección. El sistema de impulsión de aire es un ventilador 14x14x2,5cm -habitualmente utilizado para refrigeración de servidores informáticos- con velocidad de rotación variable de 300 a 1500 rpm y caudal de 100m3/h en salida libre sin perdida. En este caso, las aspas del ventilador contribuyen a la absorción de radiación reflejada y precisa un elemento menos que la otra abertura.The shape of the chosen enclosure is that of a straight prism with a triangular base with sides at 45 ° and 90 °, made of 2mm folded and welded sheet steel. The steel sheet is completely opaque to radiation, but can reflect it, to avoid this it is painted with dark rough enamel so that it acquires a degree of reflection of less than 10%. The interior of the chamber; fixed and moving parts; it is clad with anodized aluminum and 80% reflective capacity to take full advantage of the radiant power, which turns out to be 20W with the moving parts open; for surfaces; and 25W inside the camera; for air. The air path is considered with a lower inlet and upper outlet, both 32cm2, and a radiant chamber with a section of 130cm2. The air supply system is a 14x14x2.5cm fan -usually used for cooling computer servers- with variable rotation speed from 300 to 1500 rpm and a flow rate of 100m3 / h in free outlet without loss. In this case, the fan blades contribute to the absorption of reflected radiation and require one less element than the other opening.
El procedimiento para alternar la funcionalidad de aire a la de superficies, se realiza por una persona sin protección a la radiación y es el siguiente: apagado manual del emisor en funcionalidad de aire, oscurecimiento de ventanas y puertas, apertura de la envolvente, accionamiento de reloj para encendido del emisor diferido en el tiempo y posterior apagado automático, salida del operador del recinto y cierre de puerta. Transcurrido el tiempo previsto para el apagado automático el operador vuelve a entrar en el recinto, cierra la envolvente y enciende la funcionalidad de aire.The procedure to alternate the functionality of air to that of surfaces, is carried out by a person without radiation protection and is as follows: manual shutdown of the emitter in air functionality, darkening of windows and doors, opening of the enclosure, activation of clock for delayed transmitter start-up and subsequent automatic shutdown, operator exit from the enclosure and door closing. After the time provided for automatic shutdown, the operator re-enters the enclosure, closes the enclosure and turns on the air functionality.
Este complemento puede aplicar 40mJ/cm2 sobre las superficies del recinto en 20 minutos, y 20mJ/cm2 a 8m3/hora de aire del recinto, de forma que en 16 horas puede tratar un volumen de aire superior al de todo el recinto. This complement can apply 40mJ / cm2 on the surfaces of the room in 20 minutes, and 20mJ / cm2 at 8m3 / hour of room air, so that in 16 hours it can treat a volume of air greater than that of the entire room.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023237463A1 (en) * | 2022-06-07 | 2023-12-14 | Signify Holding B.V. | Disinfecting device having improved lifetime and safety |
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