CN111473434A - Sterilizing device and sterilizing method for killing pathogenic microorganisms in air - Google Patents
Sterilizing device and sterilizing method for killing pathogenic microorganisms in air Download PDFInfo
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- CN111473434A CN111473434A CN202010295146.9A CN202010295146A CN111473434A CN 111473434 A CN111473434 A CN 111473434A CN 202010295146 A CN202010295146 A CN 202010295146A CN 111473434 A CN111473434 A CN 111473434A
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- 244000000010 microbial pathogen Species 0.000 title claims abstract description 105
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims description 17
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 132
- 238000004140 cleaning Methods 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000011010 flushing procedure Methods 0.000 claims description 10
- 230000000249 desinfective effect Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 abstract description 149
- 230000000694 effects Effects 0.000 abstract description 5
- 244000052769 pathogen Species 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 28
- 241000700605 Viruses Species 0.000 description 10
- 238000000746 purification Methods 0.000 description 10
- 238000005070 sampling Methods 0.000 description 10
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- 235000020679 tap water Nutrition 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 241001529459 Enterovirus A71 Species 0.000 description 2
- 241000191963 Staphylococcus epidermidis Species 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
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- 241000712431 Influenza A virus Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009629 microbiological culture Methods 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 238000005502 peroxidation Methods 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
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Classifications
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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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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0076—Indoor units, e.g. fan coil units with means for purifying supplied air by electric means, e.g. ionisers or electrostatic separators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- 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)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The application discloses kill disinfection and sterilization apparatus of pathogenic microorganism in air includes: a device body; and the disinfection and sterilization module is arranged in the device body and comprises a single or a plurality of ion waterfall generators and/or a collector arranged above the single or the plurality of ion waterfall generators, each ion waterfall generator comprises an ion cylinder, an ion rod positioned at the center of the ion cylinder and a plurality of ion needles extending out of the ion rod, the ion needles are communicated with a negative high-voltage power supply and instantly emit ion waterfalls at high speed to kill pathogenic microorganisms, and the inner wall of the ion cylinder is used as a collecting surface for receiving the pathogenic microorganisms killed by the ion waterfall. According to the disinfection and sterilization device for killing pathogenic microorganisms in the air, due to the effect of the ion waterfall, the pathogenic microorganisms are collected on the collection surface, and negative ions continuously generated continuously have enough time to contact all pathogens and thoroughly eliminate the pathogenic microorganisms on the collection surface.
Description
Technical Field
The application relates to the technical field of air purification, in particular to a disinfection and sterilization device and a disinfection and sterilization method for killing pathogenic microorganisms in air.
Background
Along with the higher and higher requirements of people on the indoor air quality, the haze-preventing sharp device of the air purifier also has higher requirements. The drawbacks of conventional common air purifiers begin to appear: the purification efficiency of electrostatic air purifier is limited, secondary pollution is likely to be caused, the filter element and the filter screen of the filter screen type air purifier are frequently replaced, the later-stage cost is high, and the defects are defects in the traditional air purifier industry.
Therefore, a disinfection apparatus and a disinfection method capable of killing pathogenic microorganisms in the air are needed.
Disclosure of Invention
It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.
According to one aspect of the present application, there is provided a sterilization apparatus for killing pathogenic microorganisms in air, comprising:
a device body; and
the device comprises a device body, a disinfection and sterilization module arranged in the device body, wherein the disinfection and sterilization module comprises a single or a plurality of ion waterfall generators, each ion waterfall generator comprises an ion cylinder, an ion rod positioned at the center of the ion cylinder and a plurality of ion needles extending out of the ion rod, the ion needles are communicated with a negative high-voltage power supply to emit ion waterfalls at a high speed in the moment so as to kill pathogenic microorganisms, and the inner wall of the ion cylinder is used as a collecting surface for receiving the pathogenic microorganisms killed by the ion waterfalls.
Optionally, the sterilization module further comprises a collector installed above the single or multiple ion waterfall generators.
Optionally, the cleaning device is further included, the cleaning device can spray water to the disinfection and sterilization module to wash the collecting surface and/or the collector, and the cleaning device is arranged above the disinfection and sterilization module.
Optionally, the cleaning device further comprises an air guide device arranged above the cleaning device.
Optionally, the plurality of ion waterfall generators are arranged in a matrix array, a lower wind scooper in an inverted cone shape is arranged below each row of ion waterfall generators, and an upper wind scooper in a forward/inverted cone shape is arranged above each row of ion waterfall generators.
Optionally, the cleaning device is a washing device arranged at the top of each column of ion waterfall generators, and the washing device is an annular nozzle, a fan-shaped nozzle or a nozzle rotating by 360 degrees.
According to another aspect of the present application, there is provided a sterilization apparatus for killing pathogenic microorganisms in air, comprising:
a device body; and
the device comprises a device body, a disinfection and sterilization module, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe, a water inlet pipe, a;
wherein, the air inlet is arranged at one side of the ion waterfall generator, and the air outlet is arranged at one side of the collector.
Optionally, the left side and the right side of the disinfection and sterilization module are respectively provided with a cleaning device.
According to another aspect of the application, a disinfection and sterilization method for killing pathogenic microorganisms in air is provided, the disinfection and sterilization device is adopted, airflow respectively enters each ion waterfall generator through the bottom or the side surface of the disinfection and sterilization module, when the airflow passes through the ion cylinder, the ion needle of the negative high-voltage power supply is switched on to instantly release the ion waterfall to kill the pathogenic microorganisms and collect the pathogenic microorganisms on the collecting surface, and then the collector is used for collecting part of killed pathogenic microorganisms overflowing from the collecting surface
Optionally, the killed pathogenic microorganisms collected on the collecting surface are periodically washed clean by a cleaning device above or at two sides of the disinfection and sterilization module.
According to the disinfection and sterilization device for killing pathogenic microorganisms in the air, due to the effect of the ion waterfall, the pathogenic microorganisms are collected on the collection surface, and negative ions continuously generated continuously have enough time to contact all pathogens and thoroughly eliminate the pathogenic microorganisms on the collection surface.
Further, the sterilizing device for killing pathogenic microorganisms in the air can regularly wash the killed pathogenic microorganisms on the collecting surface through the cleaning device.
According to the disinfection and sterilization method for killing pathogenic microorganisms in the air, the adopted ion waterfall purification technology has higher filtering efficiency on particles with various particle sizes, most of common harmful gases, bacteria and viruses in the air can be ionized and purified, the wind resistance is small, no material is consumed, the air is automatically cleaned without maintenance, and all requirements of a centralized air-conditioning system on fresh air treatment can be met.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic diagram of the disinfection method for killing pathogenic microorganisms in air according to the present application;
FIG. 2 is a schematic perspective view of a sterilization apparatus for killing pathogenic microorganisms in the air according to embodiment 1 of the present application;
FIG. 3 is a schematic view of the disinfection and sterilization apparatus shown in FIG. 2 for killing pathogenic microorganisms in the air during flushing;
FIG. 4 is a schematic perspective view of a sterilization apparatus for killing pathogenic microorganisms in the air according to embodiment 2 of the present application;
FIG. 5 is a schematic view of the disinfection and sterilization apparatus shown in FIG. 4 for killing pathogenic microorganisms in the air during flushing;
FIG. 6 is a schematic perspective view of a sterilization apparatus for killing pathogenic microorganisms in the air according to embodiment 3 of the present application;
FIG. 7 is a schematic view of the disinfection and sterilization apparatus shown in FIG. 5 for killing pathogenic microorganisms in the air during flushing;
FIG. 8 is a schematic perspective view of a sterilization device for killing pathogenic microorganisms in the air according to embodiment 4 of the present application;
fig. 9 is a schematic view of the sterilization device shown in fig. 6 for killing pathogenic microorganisms in the air during flushing.
Reference numerals:
1. an ion waterfall generator; 2. a cleaning device; 3. an air guide device; 4. an upper wind scooper; 5. a lower wind scooper;
6. a collector; 7. collecting the noodles; 8. a device body; 9. an air inlet; 10. air outlet
Detailed Description
Fig. 1 is a working principle diagram of the sterilization method for killing pathogenic microorganisms in air according to the present application. Referring to fig. 1, the present application adopts an ion waterfall purification technology to have a high filtration efficiency on particles of various particle sizes, and can ionize and purify most of common harmful gases, bacteria and viruses in the air. When the airflow containing pathogenic microorganisms such as bacteria, viruses and the like passes through the disinfection and sterilization device disclosed by the application, a part of the pathogenic microorganisms are killed due to the collision of high-speed negative ions of the ion waterfall, and the action is mainly directed to larger cell pathogenic microorganisms because the airflow provides enough sectional area for the collision. Negative ions in ion waterfall (e.g. O)-,O2-,OH-) Proteins and phospholipids on the surfaces of pathogenic microorganisms are decomposed by peroxidation, while ions continue to form ion clusters (O2-H2On) to further attack and inactivate pathogenic microorganisms. The negative ions break glycoproteins on the surface of the virus, so that the virus cannot attach to a host cell and loses activity. And due to diffusion, negative ions can contact the virus to the minimum.
The present application provides various examples of a sterilization apparatus that kills pathogenic microorganisms in air. As will be described in detail below.
Example 1
Referring to fig. 2, the bottom of the device body 8 is provided with an air inlet 9, and the top is provided with an air outlet 10. An inverted cone-shaped lower air guiding hood 5 is arranged below each ion waterfall generator 1, and a regular cone-shaped upper air guiding hood 4 is arranged above each ion waterfall generator 1.
After air flow containing pathogenic microorganisms enters the device from the air inlet 9, the air flow respectively and evenly enters the ion cylinder, and the ion needle connected with the negative electrode instantly releases high-speed negative ions generated by ion waterfall to collide and kill the pathogenic microorganisms in the air flow. Pathogenic microorganisms are collected on the collecting surface 7 under the action of high-speed emission of the ion waterfall, and the continuously generated ion waterfall has enough time to contact all the pathogenic microorganisms (with different sizes and types) and thoroughly eliminate the pathogenic microorganisms on the collecting surface 7. After passing through the ion drum, the airflow enters a collector 6 positioned above the ion drum, and the collector 6 is connected to a negative electrode, so that part of killed pathogenic microorganisms which may overflow from a collecting surface 7 of the ion drum can be collected.
Referring to fig. 2, a cleaning device 2 is arranged above the collector 6, and the cleaning device 2 can spray water to the disinfection module to wash the collecting surface 7 and/or the collector 6.
Fig. 3 is a schematic view of the sterilization device shown in fig. 2 for killing pathogenic microorganisms in the air during flushing. Referring to fig. 3, the blackened portion of fig. 3 is the range of water involved in the flush. During rinsing, tap water is sprayed from the cleaning device 2 to rinse the collector 6 and the inner wall of the ion tube, i.e. the collecting surface 7.
The killed pathogenic microorganisms collected on the collecting surface 7 pass through the cleaning device 2 above the disinfection and sterilization module and are regularly washed clean by water.
Referring to fig. 2, the air guide device 3 is disposed above the cleaning device 2, and facilitates the clean air after being sterilized to be discharged out of the device body 8.
Example 2
Referring to fig. 4, an air inlet 9 is arranged below the device body 8, and an air outlet 10 is arranged at the top. An inverted cone-shaped lower wind scooper 5 is arranged below the lowermost ion waterfall generator 1, and an inverted cone-shaped upper wind scooper 4 is arranged above the uppermost ion waterfall generator 1.
When air flow containing pathogenic microorganisms enters the device from the air inlet 9, the air flow enters each ion cylinder from bottom to top at a constant speed, and the ion needles connected with the negative electrodes instantly release high-speed negative ions generated by ion waterfalls to collide and kill the pathogenic microorganisms in the air flow. Pathogenic microorganisms are collected on the collecting surface 7 under the action of high-speed emission of the ion waterfall, and the continuously generated ion waterfall has enough time to contact all the pathogenic microorganisms (with different sizes and types) and thoroughly eliminate the pathogenic microorganisms on the collecting surface 7. After passing through the ion cylinder, the airflow enters the collector 6 above the uppermost ion cylinder, and the collector 6 is connected to the negative electrode, so that part of the killed pathogenic microorganisms which may overflow from the collecting surface 7 of the ion cylinder can be collected. .
Referring to fig. 4, a cleaning device 2 is arranged above the collector 6, and the cleaning device 2 can spray water to the disinfection module to wash the collecting surface 7 and/or the collector 6.
Fig. 5 is a schematic view of the sterilization device shown in fig. 4 for killing pathogenic microorganisms in the air during flushing. Referring to fig. 5, the blackened portion of fig. 5 is the range of water involved in the flush. During rinsing, tap water is sprayed from the cleaning device 2 to rinse the collector 6 and the inner wall of the ion tube, i.e. the collecting surface 7. The cleaning device is a 360-degree rotatable nozzle, and the inner wall of each ion cylinder can be cleaned by utilizing 360-degree rotation of water pressure during cleaning.
The killed pathogenic microorganisms collected on the collecting surface 7 pass through the cleaning device 2 above the disinfection and sterilization module and are regularly washed clean by water.
Referring to fig. 2, the air guide device 3 is disposed above the cleaning device 2, and facilitates the clean air after being sterilized to be discharged out of the device body 8.
Example 3
An inverted cone-shaped lower air guiding hood 5 is arranged below the ion waterfall generator 1 at the lowest part of each purification unit, and an inverted cone-shaped upper air guiding hood 4 is arranged above the ion waterfall generator 1 at the highest part of each purification unit.
Referring to fig. 6, an air inlet 9 is arranged below the device body 8, and an air outlet 10 is arranged at the top. When air flow containing pathogenic microorganisms enters the device from the air inlet 9, the air flow evenly enters each purification unit along the lower air guide cover 5 and then enters each ion cylinder from bottom to top at a constant speed, and the ion needle connected with the negative electrode instantly releases high-speed negative ions generated by an ion waterfall to collide and kill the pathogenic microorganisms in the air flow. Pathogenic microorganisms are collected on the collecting surface 7 under the action of high-speed emission of the ion waterfall, and the continuously generated ion waterfall has enough time to contact all the pathogenic microorganisms (with different sizes and types) and thoroughly eliminate the pathogenic microorganisms on the collecting surface 7. After the airflow passes through the ion tube, clean air without pathogenic microorganisms is discharged from the air outlet 10 along the upper air guiding cover 4.
Referring to fig. 6, a cleaning device 2 is provided above each purification unit, and the cleaning device 2 can spray water to the corresponding purification unit to wash the collection surface 7. In particular, the cleaning device 2 is a ring-shaped washing device arranged at the top of each column of ion waterfall generators 1.
Fig. 7 is a schematic view of the sterilization device shown in fig. 6 for killing pathogenic microorganisms in the air during flushing. Referring to fig. 7, the blackened portion of fig. 7 is the range of water involved in the flush. During rinsing, tap water is sprayed from the cleaning device 2 to rinse the inner wall of the ion tube, i.e. the collecting surface 7. The collecting surface 7 can be quickly washed by using the water pressure of tap water during cleaning.
Example 4
Referring to fig. 8, the air inlet 9 is disposed at one side, i.e., the left side, of the ion waterfall generator 1, and the air outlet 10 is disposed at one side, i.e., the right side, of the collector 6.
When air flow containing pathogenic microorganisms enters the device from the air inlet 9, the air flow firstly enters an ion cylinder of the ion waterfall generator 1, and the ion needle connected with the negative electrode instantly releases high-speed negative ions generated by the ion waterfall to collide and kill the pathogenic microorganisms in the air flow. Pathogenic microorganisms are collected on the collecting surface 7 under the action of high-speed emission of the ion waterfall, and the continuously generated ion waterfall has enough time to contact all the pathogenic microorganisms (with different sizes and types) and thoroughly eliminate the pathogenic microorganisms on the collecting surface 7. After passing through the ion drum, the airflow enters the collector 6 at the right side of the ion drum, and the collector 6 is connected to a negative electrode, so that part of killed pathogenic microorganisms which may overflow from the collecting surface 7 of the ion drum can be collected. And finally, the clean air is discharged from the air outlet 10.
Fig. 9 is a schematic view of the sterilization device shown in fig. 8 for killing pathogenic microorganisms in the air during flushing. Referring to fig. 9, the left and right sides of the sterilization module are respectively provided with a cleaning device 2, which can wash the module periodically. During rinsing, tap water is sprayed from the cleaning device 2 to rinse the collector 6 and the inner wall of the ion tube, i.e. the collecting surface 7.
Example 5
The sterilization method of the embodiment 5 further comprises the step of periodically washing the killed pathogenic microorganisms collected on the collection surface 7 through the cleaning devices 2 above or at two sides of the sterilization module.
Example 6
① air virus removal effect test was conducted on the sterilizer shown in example 2, the test was conducted according to the method and the reference "Disinfection specification" 2002 edition-2.1.3, the names of the viruses tested were influenza A virus H1N1(A/PR/8/34) MDCK cell, influenza A virus H3N2MDCK cell, Enterovirus 71 Vero cell EV71 and poliovirus-I vaccine strain Vero cell, respectively, and the sterilizer was placed at 30m3The test chamber of (1) was used to perform 3 separate tests for each virus species, the specific test parameters are shown in table 1.
TABLE 1
Wherein, the removal rate test result eliminates the influence of the natural extinction factor of the microorganisms in the air.
It can be seen from table 1 that the disinfection and sterilization device of the present application can effectively remove viruses in air.
② air sterilization effect evaluation test of the sterilizer shown in example 2, the test method and the test method were described in reference to "Disinfection Specification" 2002 edition-2.1.3.4, the names of the tested strains were Staphylococcus aureus ATCC6538 and Escherichia coli 8099, respectively, and the sterilizer was placed at 20m3The test chamber of (1) was used for 3 groups of tests for each microorganism species, and the specific test parameters are shown in Table 2.
TABLE 2
Wherein, the result of the bacteria removal rate test eliminates the influence of the natural death factor of the microorganisms in the air.
It can be seen from table 2 that the air can be effectively removed by using the disinfection and sterilization device of the present application.
Example 7
The air sterilization simulation field test and the air sterilization field test were performed on the sterilization apparatus shown in example 2.
① air sterilization simulation field test
First, equipment
Disinfecting instruments: example 2 schematically shows a sterilization apparatus.
Test strains: staphylococcus albus 8032, provided by the China general microbiological culture Collection center. The generation number of the strain is 3, and a strain suspension is prepared by using a common broth.
Media name and lot number: nutrient agar medium (NA) 20200206.
A laboratory: 20m3A chamber.
The sampler comprises a biochemical incubator (model: QFM-B-S001) and a JW L-6 sieve mesh impact type six-level microorganism sampler (model: QFM-B-S006).
Second, method
The detection basis is as follows: WS/T648-2019 appendix A of air purifier Disinfection machine general sanitation requirements.
Detecting the environment: temperature: 23.2 ℃, humidity: 62 percent.
Spraying for 5min, stirring for 5min, and standing for 5 min.
The method is characterized in that a sample machine is arranged at the far end of a test chamber, the tested sample machine is turned to a starting state (the maximum wind speed is started) according to requirements and acts for 2 hours, then air in the space is sampled at the same position, a JW L-6 sieve mesh impact type six-level microorganism sampler is placed at the position 1m higher than the center of a chamber during sampling, one point is arranged for sampling, the air draft of 28.3 liters/minute is used for sampling, the sampling time of a processing control group is 1min, the sampling time of a processing test group is 5min, and the test is repeated for 3 times.
The collected plates were placed at 36.0 ℃ for 48 hours of culture.
Three, result in
The specific test results are shown in Table 3.
TABLE 3
Fourth, conclusion
At 20m3In the test cabin, the prototype is started to act for 2 hours at the maximum wind speed, the test is repeated for 3 times, the detection result of the killing rate of the staphylococcus albus in the air is more than 99.9 percent, the requirements of WS/T648-2019 general sanitation requirements of air purifier disinfectors-6.5.1 are met, and the disinfection is qualified.
② air sterilization simulation field test
First, equipment
Disinfecting instruments: example 2 schematically shows a sterilization apparatus.
A laboratory: 10m2A chamber.
The sampler comprises a biochemical incubator (model: QFM-B-S001) and a JW L-6 sieve mesh impact type six-grade air microorganism sampler (model: QFM-B-S006).
Media name and lot number: nutrient agar medium (NA): 20200206.
second, method
The detection basis is as follows: WS/T648-2019 appendix B of air purifier Disinfection machine general sanitation requirements.
Detecting the environment: temperature: 23.9 ℃, humidity: 59 percent.
The method is characterized in that a sample machine is arranged at the far end of a test chamber, the tested sample machine is adjusted to a starting state (the maximum wind speed is started) according to requirements and acts for 1.5 hours, then air in the space is sampled at the same sampling point position, a JW L-6 sieve mesh impact type six-level air microorganism sampler is placed at the position 1.0m higher than the center of a test place during sampling, one point is arranged for sampling, sampling is carried out at the flow rate of 28.3 liters/minute, the sampling time is 5 minutes, and the test is repeated for 3 times.
The cells were incubated with Nutrient Agar (NA) at 36.0 ℃ for 48 h.
Three, result in
The specific test results are shown in Table 4.
TABLE 4
Fourth, conclusion
At 10m2In the test cabin, the prototype is started to act for 1.5h at the maximum wind speed, the test is repeated for 3 times, the detection result of the natural bacteria extinction rate in the air is more than 90 percent, the requirement of WS/T648-2019 general sanitation requirement of air purifier disinfector-6.5.2 is met, and the disinfection is qualified.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A sterilization device for killing pathogenic microorganisms in air is characterized by comprising:
a device body; and
the device comprises a device body, a disinfection and sterilization module arranged in the device body, wherein the disinfection and sterilization module comprises a single or a plurality of ion waterfall generators, each ion waterfall generator comprises an ion cylinder, an ion rod positioned at the center of the ion cylinder and a plurality of ion needles extending out of the ion rod, the ion needles are communicated with a negative high-voltage power supply to emit ion waterfalls at a high speed in the moment so as to kill pathogenic microorganisms, and the inner wall of the ion cylinder is used as a collecting surface for receiving the pathogenic microorganisms killed by the ion waterfalls.
2. A sterilizer for killing pathogenic microorganisms in the air as recited in claim 1, wherein said sterilizer further comprises a collector installed above the single or multiple ion waterfall generators.
3. A sterilizer for killing pathogenic microorganisms in the air as claimed in claim 2, further comprising a cleaning device which sprays water to the sterilizer to wash the collecting surface and/or the collector, the cleaning device being disposed above the sterilizer.
4. A disinfecting and sterilizing apparatus as claimed in claim 3, further comprising an air guide device disposed above said cleaning device.
5. A sterilizer for removing pathogenic microorganisms from the air as claimed in claim 2, wherein the ion waterfall generators are arranged in a matrix array, a lower wind scooper with an inverted cone shape is arranged below each row of ion waterfall generators, and an upper wind scooper with a forward/inverted cone shape is arranged above each row of ion waterfall generators.
6. A disinfecting and sterilizing device for killing pathogenic microorganisms in the air according to claim 5, characterized in that the cleaning device is a flushing device arranged at the top of each row of ion waterfall generators, and the flushing device is an annular nozzle, a fan-blade-shaped nozzle or a nozzle rotating by 360 degrees.
7. A sterilization device for killing pathogenic microorganisms in air is characterized by comprising:
a device body; and
the device comprises a device body, a disinfection and sterilization module, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe, a water inlet pipe, a;
wherein, the air inlet is arranged at one side of the ion waterfall generator, and the air outlet is arranged at one side of the collector.
8. A disinfecting and sterilizing apparatus as claimed in claim 7, characterized in that the left and right sides of said disinfecting and sterilizing module are respectively provided with cleaning devices.
9. A disinfection and sterilization method for killing pathogenic microorganisms in air by adopting the disinfection and sterilization device as claimed in any one of claims 1 to 8, characterized in that air flow enters each ion waterfall generator through the bottom or the side surface of the disinfection and sterilization module respectively, when the air flow passes through an ion cylinder, an ion needle connected with a negative high-voltage power supply instantly releases an ion waterfall to kill the pathogenic microorganisms and collect the pathogenic microorganisms on a collection surface, and then a part of killed pathogenic microorganisms overflowing from the collection surface is collected by a collector.
10. A sterilization method according to claim 9, wherein the sterilized pathogenic microorganisms collected on the collection surface are periodically washed clean by a cleaning device above or at both sides of the sterilization module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010295146.9A CN111473434A (en) | 2020-04-15 | 2020-04-15 | Sterilizing device and sterilizing method for killing pathogenic microorganisms in air |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010295146.9A CN111473434A (en) | 2020-04-15 | 2020-04-15 | Sterilizing device and sterilizing method for killing pathogenic microorganisms in air |
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| CN111473434A true CN111473434A (en) | 2020-07-31 |
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| CN202010295146.9A Pending CN111473434A (en) | 2020-04-15 | 2020-04-15 | Sterilizing device and sterilizing method for killing pathogenic microorganisms in air |
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Application publication date: 20200731 |