CN112773924A - Biological sterilizing safety cabinet - Google Patents
Biological sterilizing safety cabinet Download PDFInfo
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- CN112773924A CN112773924A CN202011506337.1A CN202011506337A CN112773924A CN 112773924 A CN112773924 A CN 112773924A CN 202011506337 A CN202011506337 A CN 202011506337A CN 112773924 A CN112773924 A CN 112773924A
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- air inlet
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 39
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 26
- RECVMTHOQWMYFX-UHFFFAOYSA-N oxygen(1+) dihydride Chemical compound [OH2+] RECVMTHOQWMYFX-UHFFFAOYSA-N 0.000 claims abstract description 15
- 150000002500 ions Chemical class 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims abstract description 8
- 239000011941 photocatalyst Substances 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims description 30
- 230000002147 killing effect Effects 0.000 claims description 17
- 230000001678 irradiating effect Effects 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 239000000443 aerosol Substances 0.000 claims 1
- 241000700605 Viruses Species 0.000 abstract description 13
- 238000004887 air purification Methods 0.000 abstract description 3
- 244000052616 bacterial pathogen Species 0.000 abstract 1
- 241000304886 Bacilli Species 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- -1 peroxide radicals Chemical class 0.000 description 4
- 150000002978 peroxides Chemical class 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000249 desinfective effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000013566 allergen Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000011506 response to oxidative stress Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003612 virological effect Effects 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
-
- 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
-
- 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
- A61L9/22—Ionisation
-
- 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
-
- 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
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/11—Apparatus for controlling air treatment
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a biological sterilizing safety cabinet, which relates to the technical field of air purification and comprises a cabinet door, a cabinet body, an object placing plate and sterilizing equipment; the cabinet door is rotatably connected to the opening of the cabinet body; the object placing plate is horizontally arranged in the cabinet body; the sterilizing equipment is arranged at the bottom of the cabinet body and comprises a shell, an air inlet, an air outlet, a blower, a spiral air duct device, a nanometer water ion generating device and an inverted cone-shaped air duct; the spiral air duct device is used for sterilizing the inflowing air under the action of photocatalyst in the spiral air duct and then flowing out; the nanometer water ion generating device is arranged on the side wall of the inverted cone-shaped air channel and used for outputting the nanometer water ions to the inverted cone-shaped air channel and outputting the nanometer water ions along with the flowing of the air flow. The total length of the spiral air duct can be set according to the types of the virus bacilli to be killed, the application range of sterilization is expanded, and the disinfection time can be adjusted according to the length of the spiral air duct, so that the sterilization effectiveness is improved.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a biological sterilizing safety cabinet.
Background
In daily life, the air quality of the article storage environment is often the most concerned problem, and due to the influence of air tightness, pollutants, bacteria and other substances in the air are easy to stay indoors, so that the cleanliness and the quality of the articles are influenced. For example, in the case of daily freshness preservation and food refrigeration, in the case of daily storage of bowls, chopsticks and the like, in the case of storage of various organisms or articles in hospitals, laboratories and the like, air purification, formaldehyde removal, odor removal, smoke and dust removal, pollen and allergen removal, disinfection and sterilization and the like are required.
However, most of the existing sterilizing equipment for the virus bacilli has low sterilizing efficiency, and the sterilizing effectiveness cannot be ensured. For example, chinese patent CN203139177U discloses a nano water ion air purifier, which uses a nano water ion generator to deodorize and sterilize the air in the duct, and also installs an ultraviolet lamp and a negative ion generator in the air outlet duct to perform bacteriostasis and sterilization. However, the action time of sterilization is difficult to ensure and control, resulting in poor sterilization effectiveness.
Disclosure of Invention
Therefore, in order to overcome the above-mentioned drawbacks, embodiments of the present invention provide a bio-sterilizer.
Therefore, the biological sterilizing safety cabinet comprises a cabinet door, a cabinet body, an object placing plate and sterilizing equipment;
the cabinet door is rotatably connected to the opening of the cabinet body;
the object placing plate is horizontally arranged in the cabinet body;
the sterilizing equipment is arranged at the bottom of the cabinet body and comprises a shell, an air inlet, an air outlet, a blower, a spiral air duct device, a nanometer water ion generating device and an inverted cone-shaped air duct;
the air inlet is arranged at the lower part of one side wall of the shell and is used for the inflow of air;
the blower is arranged beside the air inlet, and the air outlet of the blower is aligned with the first air inlet of the spiral air duct device and used for providing power to blow air flowing in from the air inlet into the spiral air duct device;
the spiral air duct device is positioned above the air inlet and comprises a first air inlet and a first air outlet, the first air inlet is connected and positioned on the lower bottom surface of the spiral air duct device, the first air outlet is connected and positioned at the center of the upper bottom surface of the spiral air duct device and used for enabling air flowing in from the first air inlet to flow out from the first air outlet after being sterilized in the spiral air duct under the action of photocatalyst;
the inverted cone-shaped air duct is positioned above the spiral air duct device, an air inlet of the inverted cone-shaped air duct is connected with a first air outlet of the spiral air duct device, an air outlet of the inverted cone-shaped air duct is connected with an air outlet of the killing equipment, and the size of the air inlet of the inverted cone-shaped air duct is smaller than that of the air outlet;
the nanometer water ion generating device is arranged on the side wall of the inverted cone-shaped air channel and used for outputting nanometer water ions to the inverted cone-shaped air channel and outputting the nanometer water ions along with the flowing air flow from the air inlet to the air outlet of the inverted cone-shaped air channel.
Preferably, the spiral air duct device further comprises a spiral air duct, a second air outlet, a catalyst layer, a light reverse side and a light emitting diode;
the cross section of the pipeline of the spiral air duct is square, and the pipeline is spirally arranged from outside to inside to form the spiral air duct with a cuboid shell;
the light emitting diodes are uniformly distributed on the inner wall of the upper top surface of the shell of the spiral air duct device and are used for irradiating ultraviolet light;
the catalyst layer is positioned at a distance below the light-emitting diode and is in a disc shape;
the second air outlet comprises a pipeline positioned inside a shell of the spiral air duct device, the pipe wall of the second air outlet comprises a first part from the inner wall of the upper top surface of the shell of the spiral air duct device to the upper surface of the catalyst layer, a second part inside the catalyst layer and a third part from any position inside the catalyst layer to the middle air outlet of the spiral air duct of the lower bottom surface of the catalyst layer, the cross section of the pipe wall of the third part is square, the pipe wall of the first part is a light reverse surface and is in an arc shape protruding outwards, and the third part is used for enabling light to be reflected divergently by the light reverse surface.
Preferably, the light emitting diode is used for irradiating ultraviolet a light or ultraviolet C light having a wavelength of 400nm or less, or for irradiating ultraviolet a light and ultraviolet C light having a wavelength of 400nm or less.
Preferably, the catalyst contained in the catalyst layer is titanium oxide that is particulate in a size of 10nm to 60 nm.
Preferably, the air purifier also comprises a filter screen, wherein the filter screen is arranged at the air inlet and used for filtering out suspended particles in air flowing into the equipment.
The technical scheme of the embodiment of the invention has the following advantages:
according to the biological sterilizing safety cabinet provided by the embodiment of the invention, the spiral air duct is arranged, the total length of the spiral air duct can be set according to the type of the virus bacilli to be sterilized, the application range of sterilization is expanded, and the sterilization time can be adjusted according to the length of the spiral air duct, so that the sterilization effectiveness is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view showing a specific example of a biocidal safety cabinet according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a specific example of a spiral duct apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic distribution diagram of one specific example of a multi-turn duct in an embodiment of the present invention;
FIG. 4 is a bottom view of a specific example of a multiple curved duct in an embodiment of the present invention;
FIG. 5 is a side view of a specific example of a multiple curved duct in an embodiment of the present invention;
fig. 6 is a top view of a specific example of a multi-turn duct in an embodiment of the present invention.
Reference numerals: 1-shell, 2-air inlet, 3-air outlet, 4-air blower, 5-spiral air duct device, 7-nanometer water ion generating device, 8-inverted cone air duct, 51-first air inlet, 52-first air outlet, 53-spiral air duct, 54-second air outlet, 55-catalyst layer, 56-optical reverse side, 57-light emitting diode, 58-multi-bend air duct, 521-air guide surface, 581-air inlet moving door, 582-air outlet moving door, 583-second air inlet, 584-third air outlet, 585-suction fan, 586-partition board, 101-cabinet door, 102-cabinet body, 103-object placing board and 104-killing device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In describing the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and/or "comprising," when used in this specification, are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Examples
The embodiment provides a biological sterilizing safety cabinet which can be applied to various environments for storing articles, such as daily fresh-keeping and food refrigeration, daily storage of bowls, chopsticks and the like, storage of various organisms or articles in hospitals, laboratories and the like. As shown in fig. 1, the biological sterilizing safety cabinet comprises a cabinet door 101, a cabinet body 102, a storage plate 103 and sterilizing equipment 104;
the cabinet door 101 is rotatably connected to an opening of the cabinet body 102;
the object placing plate 103 is horizontally arranged in the cabinet body 102;
the sterilizing equipment 104 is arranged at the bottom of the cabinet body 102 and comprises a shell 1, an air inlet 2, an air outlet 3, a blower 4, a spiral air duct device 5, a nanometer water ion generating device 7, an inverted cone air duct 8 and the like;
the air inlet 2 is arranged at the lower part of one side wall of the shell 1 and is used for the inflow of air;
the blower 4 is arranged beside the air inlet 2, and an air outlet of the blower 4 is aligned with the first air inlet 51 of the spiral air duct device 5 and used for providing power to blow air flowing in from the air inlet 2 into the spiral air duct device 5;
the spiral air duct device 5 is positioned above the air inlet 2 and comprises a first air inlet 51, a spiral air duct and a first air outlet 52, the first air inlet 51 is connected and positioned on the lower bottom surface of the spiral air duct device 5, the first air outlet 52 is connected and positioned at the center of the upper bottom surface of the spiral air duct device 5 and used for enabling air flowing in from the first air inlet 51 to flow out from the first air outlet 52 after being sterilized in the spiral air duct under the action of photocatalyst; through the spiral air duct, the distance that flows the air is effectively increased to effectively prolong the sterilization time of photocatalyst effect, improved virus bacillus efficiency of killing, improved the validity of disinfecting. The generally required killing time of different kinds of virus bacilli is different, and the total length of the spiral air duct can be set according to the kinds of virus bacilli required to be killed, so that the application range is expanded.
The inverted cone-shaped air duct 8 is positioned above the spiral air duct device 5, an air inlet of the inverted cone-shaped air duct 8 is connected with a first air outlet 52 of the spiral air duct device 5, an air outlet of the inverted cone-shaped air duct 8 is connected with an air outlet 3 of the killing equipment, and the size of the air inlet of the inverted cone-shaped air duct 8 is smaller than that of the air outlet and is inverted;
the nanometer water ion generating device 7 is arranged on the side wall of the inverted cone-shaped air channel 8 and is used for outputting nanometer water ions into the inverted cone-shaped air channel 8 and outputting the nanometer water ions along with air flow flowing from an air inlet to an air outlet of the inverted cone-shaped air channel 8; the disinfection and sterilization mechanism of nano water ions is derived from the dual actions of physics and chemistry: 1) physical action: the strong electric field and charged particles generated by the nano water ions can physically and electrically puncture the cell walls of bacteria, destroy proteins and DNA of bacteria and viruses, and denature and inactivate the bacteria and the viruses. 2) Chemical action: it is also the main function of nano water ion disinfection and sterilization. Oxygen-containing active particles (ROS) in the nano water ions cause oxidative stress reaction, destroy the structures of macromolecules such as protein, DNA, lipid and the like, change the biological activity of the macromolecules, accelerate mutagenesis, and finally inactivate and die bacteria and viruses. Preferably, the number of the nano water ion generating devices 7 is one or more than two, and when the number of the nano water ion generating devices 7 is more than two, the nano water ion generating devices are uniformly distributed on the side wall of the inverted cone-shaped air duct 8, so that the concentration of nano water ions is improved, the killing efficiency of virus bacilli is improved, and the sterilization effectiveness is improved.
Preferably, as shown in fig. 2, the first air outlet 52 of the spiral air duct device 5 includes a pipe located outside the casing of the spiral air duct device 5, and a pipe wall of the pipe has an air guiding surface 521, where the air guiding surface 521 is in a trumpet shape, and guides the air flow to be in an outward diffusion shape, so as to perform a better flow guiding function.
Preferably, as shown in fig. 2 and 3, the spiral air duct device 5 further includes a spiral air duct 53, a second air outlet 54, a catalyst layer 55, a light-emitting surface 56 and a light-emitting diode 57;
the cross section of the spiral air duct 53 is square, the catalyst layer 55 is used as the upper top surface of the duct, and the duct is spirally arranged from outside to inside to form the spiral air duct 53 with a cuboid shell; the direction of the open arrows shown in fig. 3 is the direction of the air flow.
The light emitting diodes 57 are uniformly distributed on the inner wall of the upper top surface of the shell of the spiral air duct device 5 and used for irradiating ultraviolet light; preferably, the light emitting diode 57 is used for irradiating ultraviolet a light or ultraviolet C light having a wavelength of 400nm or less, or ultraviolet a light and ultraviolet C light having a wavelength of 400nm or less, and when the device is operated, a part of the light emitting diodes in the device are irradiated with the ultraviolet a light, and another part of the light emitting diodes are irradiated with the ultraviolet C light, and the ultraviolet C light can perform not only sterilization by a photocatalyst action, but also sterilization by a sterilization function by itself light, thereby improving sterilization efficiency.
The catalyst layer 55 is located a distance below the light emitting diode 57 and is disc-shaped, which is beneficial to the ultraviolet light to completely and uniformly cover the upper surface of the catalyst layer 55 and increase the generation amount of peroxide free radicals, thereby improving the effect of killing the virus bacilli. Preferably, a distance may be determined according to the irradiation range of the light emitting diode 57 so that ultraviolet light entirely covers the upper surface of the catalyst layer 55 to increase the generation amount of the peroxide radicals, thereby increasing the effect of killing the virus bacilli. Preferably, the catalyst contained in the catalyst layer 55 is titanium oxide in the form of particles having a size of 10nm to 60nm, and the titanium oxide in the form of particles can generate a large amount of peroxide radicals even under very weak ultraviolet light irradiation, thereby improving the efficiency of killing viral bacilli.
The second air outlet 54 includes a pipe inside the casing of the spiral air duct device 5, the pipe wall includes a first part from the inner wall of the upper top surface of the casing of the spiral air duct device 5 to the upper surface of the catalyst layer 55, a second part inside the catalyst layer 55 and a third part from any position inside the catalyst layer 55 to the middle air outlet of the spiral air duct 53 at the lower bottom surface of the catalyst layer 55, the cross section of the pipe wall of the third part is square to facilitate matching with the shape of the air outlet of the spiral air duct 53, the pipe wall of the first part is a light reverse surface 56 and is in an arc shape protruding outward for making the light be divergently reflected by the light reverse surface 56, making more light irradiate to the upper surface of the catalyst layer 55, increasing the generation amount of peroxide radicals, and thus increasing the killing effect of virus bacilli. Preferably, the cross section of the pipe wall of the second part is circular, so that the pipe wall of the second part is more favorable for matching, connection and continuity with the pipe wall of the first part.
Above-mentioned spiral air duct device through setting up the spiral air duct, has prolonged the length of air current walking, has prolonged the time that the air current was disinfected by the photocatalyst effect to the validity of disinfecting has been improved.
Preferably, the inner wall of the lower bottom surface of the pipeline of the spiral air duct 53 is paved with nano-scale fluff to form an adsorption and traction effect on the peroxide free radicals, so that the peroxide free radicals form a peroxide free radical flow perpendicular to the direction of the air flow, thereby being more favorable for killing the virobacillus in the air flow, and the nano-scale fluff can release the peroxide free radicals for the second time due to supersaturated adsorption to form a secondary release source, thereby improving the sterilization efficiency.
Preferably, as shown in fig. 2, 3, 4, 5 and 6, the spiral duct device 5 further includes a multi-turn duct 58; the multi-bend duct 58 is connected to and located above the duct inside of the spiral duct 53, and the duct also uses the catalyst layer 55 as the upper top surface of the duct, and may be provided with one or more than two, and the installation position may be adjusted according to actual needs, for example, may be located at the straight position or the corner of the duct.
The multi-bend air duct 58 comprises an air inlet moving door 581, an air outlet moving door 582, a second air inlet 583, a third air outlet 584, a suction fan 585 and a partition 586;
the second air inlet 583 and the third air outlet 584 are both rectangular and are matched with the width of the pipeline of the spiral air duct 53;
the air inlet moving door 581 is located at the second air inlet 583 and used for opening or closing the second air inlet 583;
the air outlet moving door 582 is located at the third air outlet 584, and is configured to open or close the third air outlet 584;
the suction fan 585 is located above the second air inlet 583, and is configured to suck air in the spiral air duct 53 from the second air inlet 583, convey the air through the multiple curved air ducts 58, and output the air from the third air outlet 584 to the spiral air duct 53;
one end of the partition plate 586 is vertically installed on the left inner wall of the multi-bent duct 58 housing, the other end is suspended and suspended with one end of the partition plate 586, the other end is vertically installed on the right inner wall of the multi-bent duct 58 housing, the two installation methods are alternately performed to form a multi-bent duct, the length of air flow circulation is increased, the time of air flow sterilization by photocatalyst action is prolonged, and therefore the sterilization effectiveness is improved.
Preferably, the killing apparatus 104 further comprises a filter screen, the filter screen is installed at the air inlet 2 and used for filtering out suspended particles in air flowing into the apparatus, so as to prevent the suspended particles from entering the apparatus to cause pollution and aging of the apparatus and prolong the service life of the apparatus.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (5)
1. A biological disinfection safety cabinet is characterized by comprising a cabinet door (101), a cabinet body (102), an object placing plate (103) and disinfection equipment (104);
the cabinet door (101) is rotatably connected to the opening of the cabinet body (102);
the object placing plate (103) is horizontally arranged in the cabinet body (102);
the sterilizing and killing equipment (104) is arranged at the bottom of the cabinet body (102) and comprises a shell (1), an air inlet (2), an air outlet (3), a blower (4), a spiral air duct device (5), a nanometer water ion generating device (7) and an inverted conical air duct (8);
the air inlet (2) is arranged at the lower part of one side wall of the shell (1) and is used for the inflow of air;
the blower (4) is arranged beside the air inlet (2), and an air outlet of the blower (4) is aligned with a first air inlet (51) of the spiral air duct device (5) and used for providing power to blow air flowing in from the air inlet (2) into the spiral air duct device (5);
the spiral air duct device (5) is positioned above the air inlet (2) and comprises a first air inlet (51) and a first air outlet (52), the first air inlet (51) is connected and positioned on the lower bottom surface of the spiral air duct device (5), the first air outlet (52) is connected and positioned at the center of the upper bottom surface of the spiral air duct device (5) and used for enabling air flowing in from the first air inlet (51) to flow out from the first air outlet (52) after being sterilized in the spiral air duct under the action of photocatalyst;
the inverted cone-shaped air duct (8) is positioned above the spiral air duct device (5), an air inlet of the inverted cone-shaped air duct (8) is connected with a first air outlet (52) of the spiral air duct device (5), an air outlet of the inverted cone-shaped air duct (8) is connected with an air outlet (3) of the killing equipment, and the size of the air inlet of the inverted cone-shaped air duct (8) is smaller than that of the air outlet;
the nanometer water ion generating device (7) is arranged on the side wall of the inverted cone-shaped air channel (8) and is used for outputting the nanometer water ions to the inverted cone-shaped air channel (8) and outputting the nanometer water ions along with the air flow flowing from the air inlet to the air outlet of the inverted cone-shaped air channel (8).
2. A killing apparatus according to claim 1, wherein the spiral duct means (5) further comprises a spiral duct (53), a second air outlet (54), a catalyst layer (55), a photo-reverse side (56) and a light emitting diode (57);
the cross section of the pipeline of the spiral air duct (53) is square, and the pipeline is spirally arranged from outside to inside to form the spiral air duct (53) with a cuboid shell;
the light emitting diodes (57) are uniformly distributed on the inner wall of the upper top surface of the shell of the spiral air duct device (5) and are used for irradiating ultraviolet light;
the catalyst layer (55) is positioned at a distance below the light-emitting diode (57) and is in a disc shape;
the second air outlet (54) comprises a pipeline positioned inside the shell of the spiral air duct device (5), the pipe wall of the pipeline comprises a first part from the inner wall of the upper top surface of the shell of the spiral air duct device (5) to the upper surface of the catalyst layer (55), a second part inside the catalyst layer (55) and a third part from any position inside the catalyst layer (55) to the middle air outlet of the spiral air duct (53) of the lower bottom surface of the catalyst layer (55), the cross section of the pipe wall of the third part is square, the pipe wall of the first part is a light reverse surface (56) and is in an arc shape protruding outwards, and the third part is used for enabling light to be divergently reflected by the light reverse surface (56).
3. A killing apparatus according to claim 2, characterized in that the light emitting diode (57) is used for irradiating ultraviolet a light or ultraviolet C light having a wavelength below 400nm, or for irradiating ultraviolet a light and ultraviolet C light having a wavelength below 400 nm.
4. A killing apparatus according to claim 2 or 3, characterized in that the catalyst contained in the catalyst layer (55) is titanium oxide particulate in size of 10nm-60 nm.
5. A killing apparatus according to any of claims 1-4, characterized in that it further comprises a filter screen, which is arranged at the air inlet (2) and is used for filtering out aerosols from the air flowing into the apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011506337.1A CN112773924A (en) | 2020-12-18 | 2020-12-18 | Biological sterilizing safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011506337.1A CN112773924A (en) | 2020-12-18 | 2020-12-18 | Biological sterilizing safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112773924A true CN112773924A (en) | 2021-05-11 |
Family
ID=75751234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011506337.1A Withdrawn CN112773924A (en) | 2020-12-18 | 2020-12-18 | Biological sterilizing safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112773924A (en) |
-
2020
- 2020-12-18 CN CN202011506337.1A patent/CN112773924A/en not_active Withdrawn
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Application publication date: 20210511 |