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WO2021189116A1 - Source de rayonnement uv à led à circulation d'air forcée - Google Patents

Source de rayonnement uv à led à circulation d'air forcée Download PDF

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Publication number
WO2021189116A1
WO2021189116A1 PCT/BG2021/000011 BG2021000011W WO2021189116A1 WO 2021189116 A1 WO2021189116 A1 WO 2021189116A1 BG 2021000011 W BG2021000011 W BG 2021000011W WO 2021189116 A1 WO2021189116 A1 WO 2021189116A1
Authority
WO
WIPO (PCT)
Prior art keywords
leds
fan
housing
radiation
spectrum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/BG2021/000011
Other languages
English (en)
Other versions
WO2021189116A9 (fr
Inventor
Ivo Dimitrov VARGANOV
Boris Ivov VARGANOV
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Security Smart Systems Ood
Original Assignee
Security Smart Systems Ood
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Security Smart Systems Ood filed Critical Security Smart Systems Ood
Publication of WO2021189116A1 publication Critical patent/WO2021189116A1/fr
Publication of WO2021189116A9 publication Critical patent/WO2021189116A9/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/08—Optical design with elliptical curvature
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane

Definitions

  • the utility model refers to an LED source ofUV radiation combined with forced ventilation of air through a pipe.
  • the utility model will find application in rooms with bacterial and viral load to drastically reduce the concentration of these organisms:
  • UV fluorescent lamps were used for this purpose, which ace expensive and relatively short-lived.
  • no forced ventilation was applied there, but only the energy radiated in space was relied on. In this way, much . less air comes into contact with UV radiation and the time to reduce the bacterial / viral load in the room is many times greater, even impossible.
  • the task of the present utility model is to create an LED source of UV radiation with forced air circulation with high efficiency of purification of the air in the room from bacteria / viruses with high efficiency of using the radiation itself and a significantly large volume of treated air.
  • the problem is solved by an LED source of UV radiation mounted in a housing equipped with a reflective system, a fan and a power source.
  • the housing has a special ribbing so that it also serves as a radiator to dissipate the heat released by the LEDs.
  • the housing is in the shape of a square tube at the base of which is mounted an LED board.-!, with 25% of the LEDs emitting in the UV spectrum in the range from 220 to 300nm, but preferably 260 to 280nm, and 75% of the LEDs emitting in the UV spectrum in the range from 250 to 420nm, but preferably from 360 to 400nm. In this way, organisms sensitive to different wavelengths are treated at the same time, without leading to excessive unwanted ionization of the passing air.
  • mirror reflectors are mounted on the board, at an angle of, for example, 25 to 60, more preferably 25 to 35, and even more preferably 30 °.
  • another linear mirror of mirrored aluminum with a convex shape, preferably elliptical. In this way, numerous reflections of the emitted UV light are obtained and the air passing through the tube is repeatedly treated with the rays.
  • the fully radiated energy is used.
  • a fan with appropriate dimensions and flow. It is forced to inject air with a certain flow through the UV rays in order to kill the bacteria / viruses contained in it.
  • a low-voltage 12VDC fan is used, to which powerful UV LEDs (from 0.2-10W) with different wavelengths (in the range 220-420nm) are connected in series.
  • a standard 24 to 48VDC DC . driver complying with the SELV (Separated Extra Low VOLTAGE) directive is used.
  • Fig. 1 LED source of UV radiation with forced air circulation with a purified air flow rata of 200 m 3 / hour.
  • Fig.2 Simplified electrical diagram of connection of LED source of UV radiation with forced air circulation.
  • the main example of the model "LED source of UV radiation with forced air circulation” is a housing 1 with a parallelepiped shape with a length of 600 mm, cross section 120mm / 120mm and flow 230 m 3 / hour, with a radiated power of 20000 mW of LEDs in the UV spectrum, respectively 25% with a spectrum in the range from 260 to 280nm and 75% witha spectrum in the range from 360 to 400nm.
  • the housing 1 there are two reflectors 4,4 'directed at 30 ° relative to the plane of the LED source 2 and one convex linear mirror 6, located opposite the LED source 2 for multiple reflections and maximum irradiation of the passing bacteria and viruses.
  • a galvanically isolated SELV power supply unit is used, driver 5 to which the forced circulation fan 3 and UV LEDs are connected in series on the LED board, the LEDs being located on the LED board 2.
  • the LED source of UV radiation is installed near the most -the high point of the room (ceiling) to take advantage of the natural air circulation. In this way we will drastically reduce the bacterial / viral background in a room to 300 m 3 .
  • LED source of UV radiation with forced air circulation is designed for use in large rooms up to 1000m 3 . Then both the fan flow rate, the power of the LED module and the length of the housing are increased to achieve longer exposure to harmful microorganisms.
  • the LED source of UV radiation with forced air circulation is developed with the following range of technical characteristics:
  • the housing is made of extruded aluminum profile, which allows the production of products of any length (from 10cm to 300cm) and power (from 5W to 250W).
  • the board with LEDs contains 75% LEDs with a spectrum of 250- 420nm and 25% LEDs with a spectrum of 250-300 nm. In this way, organisms sensitive to different wavelengths are treated at the same time, without leading to excessive unwanted ionization of the passing air.
  • the housing has a cylindrical shape and along the entire inner perimeter (excluding the board / boards) is a cylinder of mirrored aluminum to increase the reflection.
  • LED source of UV radiation with forced air circulation when a higher intensity of radiation is required at high flow rates in the device can be integrated and standard UV fluorescent tube with a spectrum of 254nm in addition to the main UV LEDs.
  • ADVANTAGES of the proposed utility model are the following: • Very low lifetime maintenance costs for the product • Very effective purification of large volumes of air in a relatively short time

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Epidemiology (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)
  • Led Device Packages (AREA)

Abstract

L'invention concerne une source de rayonnement UV à LED à circulation d'air forcée qui est formée dans un boîtier (1) de forme parallélépipédique, sur la base duquel est montée une carte à LED (2) comportant des LED qui émettent dans le spectre des UV, un ventilateur (3) monté axialement permettant une ventilation forcée de l'air à travers ledit boîtier. Deux réflecteurs en aluminium miroir (4) et (4') sont montés longitudinalement sur le côté de la carte selon un angle de 30 degrés, et sur le côté opposé est monté un autre miroir linéaire (6) en aluminium miroir de forme convexe. Un circuit d'attaque (5) d'une puissance et d'une tension correspondantes est monté à l'extérieur du boîtier, et le ventilateur et la carte UV sont montés en série avec celui-ci.
PCT/BG2021/000011 2020-03-26 2021-03-17 Source de rayonnement uv à led à circulation d'air forcée Ceased WO2021189116A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG485520 2020-03-26
BG4855 2020-03-26

Publications (2)

Publication Number Publication Date
WO2021189116A1 true WO2021189116A1 (fr) 2021-09-30
WO2021189116A9 WO2021189116A9 (fr) 2021-11-18

Family

ID=75539022

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BG2021/000011 Ceased WO2021189116A1 (fr) 2020-03-26 2021-03-17 Source de rayonnement uv à led à circulation d'air forcée

Country Status (1)

Country Link
WO (1) WO2021189116A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1893908A1 (fr) * 2005-06-07 2008-03-05 Fusion Uv Systems, Inc. Sources lumineuses solides destinees a des fins de polymerisation et de modification de surface
US20080265179A1 (en) * 2007-04-27 2008-10-30 Havens William H Sterilization apparatus
EP2004554A1 (fr) * 2006-04-01 2008-12-24 P.W. Circuits Limited Appareil de traitement de fluide comprenant des diodes électroluminescentes à rayonnement ultraviolet
WO2016070006A2 (fr) * 2014-10-30 2016-05-06 Daylight Medical, Inc. Appareil et procédé de décontamination d'objet
US9937274B2 (en) * 2015-03-18 2018-04-10 GE Lighting Solutions, LLC Light disinfection system and method
US20190216958A1 (en) * 2018-01-18 2019-07-18 Arthur Kreitenberg Flying sanitation device and method for the environment
US20200038542A1 (en) * 2018-08-06 2020-02-06 Skizukesa Technologies LLC Method for economically disinfecting air using light fixtures

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1893908A1 (fr) * 2005-06-07 2008-03-05 Fusion Uv Systems, Inc. Sources lumineuses solides destinees a des fins de polymerisation et de modification de surface
EP2004554A1 (fr) * 2006-04-01 2008-12-24 P.W. Circuits Limited Appareil de traitement de fluide comprenant des diodes électroluminescentes à rayonnement ultraviolet
US20080265179A1 (en) * 2007-04-27 2008-10-30 Havens William H Sterilization apparatus
WO2016070006A2 (fr) * 2014-10-30 2016-05-06 Daylight Medical, Inc. Appareil et procédé de décontamination d'objet
US9937274B2 (en) * 2015-03-18 2018-04-10 GE Lighting Solutions, LLC Light disinfection system and method
US20190216958A1 (en) * 2018-01-18 2019-07-18 Arthur Kreitenberg Flying sanitation device and method for the environment
US20200038542A1 (en) * 2018-08-06 2020-02-06 Skizukesa Technologies LLC Method for economically disinfecting air using light fixtures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SONG KAI ET AL: "Microorganisms inactivation by wavelength combinations of ultraviolet light-emitting diodes (UV-LEDs)", SCIENCE OF THE TOTAL ENVIRONMENT, vol. 665, 1 May 2019 (2019-05-01), AMSTERDAM, NL, pages 1103 - 1110, XP055822169, ISSN: 0048-9697, DOI: 10.1016/j.scitotenv.2019.02.041 *

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