CN112973293A - Ultraviolet light sterilization filter core - Google Patents
Ultraviolet light sterilization filter core Download PDFInfo
- Publication number
- CN112973293A CN112973293A CN202110167242.XA CN202110167242A CN112973293A CN 112973293 A CN112973293 A CN 112973293A CN 202110167242 A CN202110167242 A CN 202110167242A CN 112973293 A CN112973293 A CN 112973293A
- Authority
- CN
- China
- Prior art keywords
- light
- ultraviolet light
- cavity
- air
- ultraviolet
- 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.)
- Pending
Links
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 38
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 230000005494 condensation Effects 0.000 claims abstract description 8
- 238000009833 condensation Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 102000039446 nucleic acids Human genes 0.000 claims description 3
- 108020004707 nucleic acids Proteins 0.000 claims description 3
- 150000007523 nucleic acids Chemical class 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 108090000623 proteins and genes Proteins 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 244000005700 microbiome Species 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000391 smoking effect Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000012443 analytical study Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/91—Bacteria; Microorganisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (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)
Abstract
The invention belongs to the technical field of environmental protection and medical equipment, and particularly relates to an ultraviolet light sterilization filter element. The filter element comprises a light-gathering cavity, an ultraviolet light source, a light power detector and an air flow regulator; the light-gathering cavity is provided with an air inlet pipe and an air outlet pipe, and the air inlet pipe or the air outlet pipe is provided with an air flow regulator; the inner wall of the light-gathering cavity is a high-reflection layer capable of effectively reflecting ultraviolet light; the ultraviolet light source is arranged in the light condensation cavity; the optical power detector detects the optical power in the cavity, processes the signals, sends out control signals to respectively control the current of the ultraviolet light source so as to control the luminous intensity, controls the opening of the air flow regulator so as to control the air flow rate, and enables the energy density generated by the ultraviolet light on the flowing air in the light-gathering cavity to be fullFoot E is more than or equal to 50mJ/cm2. The ultraviolet light sterilization filter core has good sterilization effect, and can be used for equipment needing to kill microorganisms in the air, such as medical smoking machines, air purifiers and other devices.
Description
Technical Field
The invention belongs to the technical field of environmental protection and medical equipment, and particularly relates to an ultraviolet light sterilization filter element.
Background
There are many products such as air purifier, smoking machine, etc. using the principle of ultraviolet sterilization. The existing smoking machine with the ultraviolet sterilization function only uses the concept of ultraviolet sterilization, does not give specific requirements, does not give specific parameters, and does not have the function of effectively killing germs in the rapidly flowing air, so the effect is poor.
Disclosure of Invention
The invention aims to provide an ultraviolet light sterilization filter element aiming at the defects in the prior art, and the ultraviolet light energy density of gas to be sterilized is obtained by adjusting the ultraviolet light power and the flow rate of the gas, so that microorganisms in the gas are effectively killed.
The technical scheme of the invention is as follows:
an ultraviolet light sterilization filter element comprises a light condensation cavity, an ultraviolet light source, a light power detector and an air flow regulator; the light-gathering cavity is provided with an air inlet pipe and an air outlet pipe, and the air inlet pipe or the air outlet pipe is provided with an air flow regulator; the inner wall of the light-gathering cavity is a high-reflection layer capable of effectively reflecting ultraviolet light; the ultraviolet light source is arranged in the light condensation cavity; the optical power detector detects the optical power in the cavity, processes the signals, sends out control signals to respectively control the current of the ultraviolet light source so as to control the luminous intensity, controls the opening of the air flow regulator so as to control the air flow rate, and ensures that the energy density of the ultraviolet light generated by the flowing air in the light-gathering cavity meets the condition that E is more than or equal to 50mJ/cm2。
Specifically, the energy density is calculated by the following formula: the energy density E ═ t · w (mj), where t ═ V/V (sec), V is the gas flow rate, V (cm)3) Is the volume of the light-gathering cavity, and t is the average residence time of the gas flowing through the light-gathering cavity; w is the power density within the concentrating cavity.
Specifically, W is more than or equal to 30 mW.
Wherein the emission wavelength of the ultraviolet light source is about a waveband range of 0.26-0.28 mu m, namely an absorption peak waveband of the genetic material nucleic acid.
The optical power detector is arranged in the light condensation cavity; or the light power is detected through the lighting hole by placing the light collecting cavity on the outer wall of the light collecting cavity.
Specifically, the ultraviolet light source is composed of at least 1 ultraviolet lamp or ultraviolet LED.
Specifically, the light-gathering cavity is provided with an air inlet pipe and an air outlet pipe, and air to be sterilized flows into the light-gathering cavity from the air inlet pipe and flows out through the air outlet pipe.
Specifically, the ultraviolet light sterilization filter element further comprises a power supply device connected with an ultraviolet light source.
Specifically, the air flow regulator is a regulating valve or a speed-regulating fan.
The applicant believes through analytical studies that the effect of uv light in killing microorganisms is mainly associated with several parameters: wavelength, energy density (power density X time), power density and the type of microorganism. Different microorganisms have different abilities to withstand ultraviolet light, and the types of microorganisms cannot be selected, and only the wavelength, power density, and energy density can be selected. After the conditions of flowing gas sterilization are studied, the invention provides the ultraviolet light sterilization filter core which can effectively kill microorganisms in the flowing gas. And through earlier research, the lowest energy density is provided, and the flowing gas must obtain certain energy density to be capable of effectively sterilizing.
Ultraviolet light sterilization has been used for a number of jobs. The sterilization effect is mainly related to several parameters, namely the type of germs, the wavelength of ultraviolet light, the energy density of ultraviolet light irradiation and the power density of ultraviolet light irradiation. The energy density E is related to the irradiation time t, i.e., the energy density is the product of the power density W and the irradiation time t, i.e., E equals W · t.
According to conventional studies, the effective sterilization irradiation time can be significantly reduced with an increase in power density. The time for killing virus and bacteria is reduced by orders of magnitude by multiplying the power density. A large number of data indicate 50mJ/cm for many pathogens2The energy density of (2) can be killed. Considering the performance of the existing components, the invention requires that the ultraviolet power density W in the cavity is more than or equal to 30mW/cm2。
An apparatus for killing microorganisms in the air using ultraviolet light includes an ultraviolet light source. Put into an inclosed spotlight intracavity with ultraviolet source, the intracavity wall is for carrying out the high reflection of light layer of effective reflection to the ultraviolet ray, and the spotlight chamber is equipped with intake pipe and outlet duct, contains the air of the microorganism that needs to be killed, flows into the spotlight intracavity from the intake pipe, flows out through the outlet duct. An optical power detector, an air flow regulator and an ultraviolet light source are arranged. After the volume of the light-gathering cavity is determined, the luminous intensity of the ultraviolet light source can be adjusted by adjusting the flow of the gas flowing through the light-gathering cavity, so that the air can obtain enough energy density irradiated by the ultraviolet light when flowing through the light-gathering cavity, and the sterilization effect is achieved.
The invention has the beneficial effects that: the invention provides the requirement of the energy density of ultraviolet sterilization through research, designs an applicable ultraviolet sterilization filter element based on the requirement, adjusts the flow of gas flowing through the light-gathering cavity by arranging the light power detector and the air flow regulator, and adjusts the luminous intensity of the ultraviolet light source, namely the power density, so that the air is ensured to obtain enough energy density irradiated by ultraviolet light when flowing through the light-gathering cavity, and the sterilization effect is achieved. The ultraviolet light sterilization filter core can be used for equipment needing to kill microorganisms in the air, such as a smoking machine, an air purifier and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of an ultraviolet light sterilization filter element;
FIG. 2, 2 or more ultraviolet lamps constituting ultraviolet light sterilizing filter core block diagram;
FIG. 3 is a block diagram of an ultraviolet light sterilizing filter element formed by LED ultraviolet lamps;
the labels in the figure are: 1-air inlet pipe, 2-light-gathering cavity, 3-ultraviolet lamp, 4-high reflection layer, 5-optical power detector, 6-air flow regulator, 7-power supply and 8-air outlet pipe.
Detailed Description
EXAMPLE 1 Assembly and use of the UV light sterilizing Filter elements of the invention
As shown in figures 1-3, the ultraviolet light sterilization filter element comprises a light-gathering cavity, an ultraviolet light source and a light power detectorAnd a damper; the light-gathering cavity is provided with an air inlet pipe and an air outlet pipe, and the air inlet pipe or the air outlet pipe is provided with an air flow regulator; the inner wall of the light-gathering cavity is a high-reflection layer capable of effectively reflecting ultraviolet light; the ultraviolet light source is arranged in the light condensation cavity; the optical power detector detects the optical power in the cavity, processes the signals, sends out control signals to respectively control the current of the ultraviolet light source so as to control the luminous intensity, controls the opening of the air flow regulator so as to control the air flow rate, and ensures that the energy density of the ultraviolet light generated by the flowing air in the light-gathering cavity meets the condition that E is more than or equal to 50mJ/cm2。
Specifically, the energy density is calculated by the following formula: the energy density E ═ t · w (mj), where t ═ V/V (sec), V is the gas flow rate, V (cm)3) Is the volume of the concentrating cavity, t is the average residence time of the gas flowing through the concentrating cavity, and W is the power density.
Wherein the emission wavelength of the ultraviolet light source is about 0.26um, namely the absorption peak wave band of the genetic material nucleic acid.
The optical power detector is arranged in the light condensation cavity; or the light power is detected through the lighting hole by placing the light collecting cavity on the outer wall of the light collecting cavity.
As shown in fig. 3, the uv light source is composed of at least 1 uv lamp or uv LED.
Specifically, the light-gathering cavity is provided with an air inlet pipe and an air outlet pipe, and air to be sterilized flows into the light-gathering cavity from the air inlet pipe and flows out through the air outlet pipe.
Specifically, the ultraviolet light sterilization filter element further comprises a power supply device connected with an ultraviolet light source.
Specifically, the airflow detector further comprises an airflow regulator.
Furthermore, the air flow regulator is a regulating valve or a speed-regulating fan.
The cavity is provided with a plurality of ultraviolet lamps according to the condition, and two ultraviolet lamps are arranged in the cavity in figure 2. Ultraviolet light may also be generated by the LED (fig. 3). In order to improve the optical power density, the inner wall of the light-gathering cavity is a high-reflection layer. In order to regulate the gas flow, a gas detector is provided. In order to adjust the output power of the ultraviolet lamp, a power supply is arranged, and the power of the ultraviolet lamp is adjusted by adjusting the output of the power supply. The light power detector is used for detecting the light power density in the light-gathering cavity, and the output of the light power detector is used for controlling the air flow regulator and the power supply of the ultraviolet light source. To obtain the desired energy density, the desired energy density E can be achieved by adjusting the gas flow rate v and the power density W of the ultraviolet light.
Claims (9)
1. An ultraviolet light sterilization filter core is characterized by comprising a light condensation cavity, an ultraviolet light source, a light power detector and an air flow regulator; the light-gathering cavity is provided with an air inlet pipe and an air outlet pipe, and the air inlet pipe or the air outlet pipe is provided with an air flow regulator; the inner wall of the light-gathering cavity is a high-reflection layer capable of effectively reflecting ultraviolet light; the ultraviolet light source is arranged in the light condensation cavity; the optical power detector detects the optical power in the cavity, processes the signals, sends out control signals to respectively control the current of the ultraviolet light source so as to control the luminous intensity, controls the airflow regulator so as to control the airflow speed, and ensures that the energy density of the ultraviolet light on the flowing air in the light-gathering cavity meets the condition that E is more than or equal to 50mJ/cm2。
2. The uv light sterilizing filter cartridge of claim 1, wherein the energy density is calculated by the formula:
energy density E ═ t · w (mj), where t ═ V/V (sec), V is the gas flow rate, V (cm)3) Is the volume of the concentrating cavity, t is the average residence time of the gas flowing through the concentrating cavity, and W is the power density within the concentrating cavity.
3. The ultraviolet light sterilization filter element of claim 1, wherein W is more than or equal to 30 mW.
4. The ultraviolet light sterilization filter element according to claim 1, wherein the emission wavelength of the ultraviolet light source is 0.26-0.28 μm, which is the absorption peak band of the genetic material nucleic acid.
5. The ultraviolet light sterilization filter element according to claim 1, wherein the optical power detector is arranged in the light gathering cavity or arranged on the outer wall of the light gathering cavity, and the optical power is detected through the light collecting hole.
6. The uv sterilization filter cartridge of claim 1, wherein the uv light source is comprised of at least 1 uv lamp or uv LED lamp.
7. The ultraviolet light sterilization filter element according to claim 1, wherein the light-gathering cavity is provided with an air inlet pipe and an air outlet pipe, and air to be sterilized flows into the light-gathering cavity from the air inlet pipe and flows out from the air outlet pipe.
8. The ultraviolet light sterilization filter element according to claim 1, wherein an ultraviolet lamp power supply device is arranged outside the light gathering cavity.
9. The uv light sterilizing filter cartridge of claim 1, wherein the air flow regulator is a regulating valve or a speed-regulating fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110167242.XA CN112973293A (en) | 2021-02-07 | 2021-02-07 | Ultraviolet light sterilization filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110167242.XA CN112973293A (en) | 2021-02-07 | 2021-02-07 | Ultraviolet light sterilization filter core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112973293A true CN112973293A (en) | 2021-06-18 |
Family
ID=76348769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110167242.XA Pending CN112973293A (en) | 2021-02-07 | 2021-02-07 | Ultraviolet light sterilization filter core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112973293A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023115198A1 (en) * | 2021-12-22 | 2023-06-29 | Ghomi Osgoei Kamyar | Disinfection apparatus and method of use |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080305018A1 (en) * | 2007-06-11 | 2008-12-11 | Albonia Innovative Technologies Ltd. | Photosterilization Reactor |
| CN102318872A (en) * | 2011-08-25 | 2012-01-18 | 佛山柯维光电股份有限公司 | Light-emitting diode (LED) ultraviolet fluid disinfection method and device thereof |
| CN208008504U (en) * | 2017-10-23 | 2018-10-26 | 上海李氏复大机电科技有限公司 | A kind of control system of ultraviolet-sterilization |
| CN109476514A (en) * | 2016-06-22 | 2019-03-15 | 光学实验室公司（瑞典） | With the system of mercury-free base ultraviolet light treatment fluid |
| GB202016126D0 (en) * | 2020-10-11 | 2020-11-25 | Byrne Paul | High intensity UVC air sterilization system |
-
2021
- 2021-02-07 CN CN202110167242.XA patent/CN112973293A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080305018A1 (en) * | 2007-06-11 | 2008-12-11 | Albonia Innovative Technologies Ltd. | Photosterilization Reactor |
| CN102318872A (en) * | 2011-08-25 | 2012-01-18 | 佛山柯维光电股份有限公司 | Light-emitting diode (LED) ultraviolet fluid disinfection method and device thereof |
| CN109476514A (en) * | 2016-06-22 | 2019-03-15 | 光学实验室公司（瑞典） | With the system of mercury-free base ultraviolet light treatment fluid |
| CN208008504U (en) * | 2017-10-23 | 2018-10-26 | 上海李氏复大机电科技有限公司 | A kind of control system of ultraviolet-sterilization |
| GB202016126D0 (en) * | 2020-10-11 | 2020-11-25 | Byrne Paul | High intensity UVC air sterilization system |
Non-Patent Citations (1)
| Title |
|---|
| 朱平: "《常见病红激光与红外激光的临床应用》", 31 December 2019, 中国科学技术出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023115198A1 (en) * | 2021-12-22 | 2023-06-29 | Ghomi Osgoei Kamyar | Disinfection apparatus and method of use |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5635133A (en) | Method and apparatus for killing microorganisms in a fluid medium | |
| CN201578633U (en) | Air purification and disinfection device with negative pressure air exhaust | |
| US20090098014A1 (en) | Structure and Method of Air Purification | |
| CN102327637B (en) | Multifunctional LED (light emitting diode) ultraviolet air sterilization device | |
| JP2009511854A (en) | Auxiliary device to add to the air conditioner | |
| CA2473540A1 (en) | Ultraviolet lamp ventilation apparatus and method | |
| CN111388736A (en) | Environmental air sterilizing system | |
| WO2022105031A1 (en) | Air disinfection device having heating device | |
| MY127775A (en) | Air conditioner | |
| US20210318008A1 (en) | Uv-c germicidal led strip kits for hvac ducts | |
| CN112973293A (en) | Ultraviolet light sterilization filter core | |
| CN201269596Y (en) | Air sterilization and purification machine | |
| WO2007057520A1 (en) | Method and apparatus for sterilizing gas, by measuring and controlling active oxygen content and uv-intensity | |
| KR102186465B1 (en) | Double UV wavelength sterilization module for indoor air sterilization | |
| CN113368274A (en) | Full-automatic high-adaptability wide-spectrum IPUV high-energy pulse ultraviolet disinfection and killing system | |
| CN114984289A (en) | Ultraviolet air disinfection assembly and air disinfection device | |
| CN2643887Y (en) | Plug-in ultraviolet sterilizer for bustle pipe of fan | |
| CN2627396Y (en) | Air sterilization device of ventilation air-conditioning system | |
| CN111256243A (en) | UVC-LED air sterilization appearance | |
| CN215134077U (en) | Ultraviolet air disinfection assembly and air disinfection device | |
| CN110327756A (en) | A kind of ultraviolet sterilization apparatus and control method for sterilizing and purifying device | |
| CN214232228U (en) | Simple air disinfection device for coping with epidemic situation | |
| CN213630807U (en) | Cold sterilization air purification sterilizing machine | |
| CN213657040U (en) | Disinfection device for separating and disinfecting organisms in air | |
| CN2447671Y (en) | Ultraviolet air sterilizer for air conditioner set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |