CN115645590A - Device for rapidly killing viruses in aerosol during nucleic acid sampling - Google Patents
Device for rapidly killing viruses in aerosol during nucleic acid sampling Download PDFInfo
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- CN115645590A CN115645590A CN202211230007.3A CN202211230007A CN115645590A CN 115645590 A CN115645590 A CN 115645590A CN 202211230007 A CN202211230007 A CN 202211230007A CN 115645590 A CN115645590 A CN 115645590A
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- 239000000443 aerosol Substances 0.000 title claims abstract description 143
- 150000007523 nucleic acids Chemical class 0.000 title claims abstract description 46
- 102000039446 nucleic acids Human genes 0.000 title claims abstract description 46
- 108020004707 nucleic acids Proteins 0.000 title claims abstract description 46
- 238000005070 sampling Methods 0.000 title claims abstract description 32
- 241000700605 Viruses Species 0.000 title claims abstract description 27
- 230000001954 sterilising effect Effects 0.000 claims abstract description 71
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 36
- 230000005540 biological transmission Effects 0.000 claims description 23
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 210000000214 mouth Anatomy 0.000 claims description 2
- 206010011409 Cross infection Diseases 0.000 abstract description 5
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 241001282135 Poromitra oscitans Species 0.000 abstract description 3
- 206010048232 Yawning Diseases 0.000 abstract description 3
- 206010041232 sneezing Diseases 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 description 12
- 238000001914 filtration Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 241000711573 Coronaviridae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
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Abstract
The invention discloses a device for quickly killing viruses in aerosol during nucleic acid sampling, which comprises an aerosol collecting unit, a killing unit and a tail gas processing unit, wherein the aerosol collecting unit is arranged above a killing device; the air inlet at the upper part of the sterilizing unit is connected with the aerosol collecting unit, the lower part of the sterilizing unit is connected with the tail gas processing unit, and the units are connected through a pipeline. The invention is provided with an aerosol collecting unit, the aerosol collected by the aerosol collecting unit is sent to a sterilizing unit by a fan, the aerosol treated by the sterilizing unit is exhausted into the air after being acted by a tail gas treating unit, the method utilizes a sterilizing device to rapidly sterilize the virus-carrying aerosol exhaled in the forms of haar, yawning, sneezing and the like when a nucleic acid sampling person takes off a mask, thereby avoiding cross infection of the aerosol staying in the air, protecting medical care personnel and the nucleic acid sampling person, and reducing the probability of cross infection during nucleic acid sampling.
Description
Technical Field
The invention relates to the field of killing viruses in aerosol, in particular to a device for killing viruses in aerosol during nucleic acid sampling.
Background
At present, the transmission route of the new coronavirus is thought to be transmitted through respiratory droplets and close contact, when nucleic acid is sampled, a person waiting for nucleic acid sampling can take off a mask to sample nucleic acid, aerosol can be generated through expiration, yawning, sneezing and the like, if an infected person exists, aerosol carrying virus can be generated through the method, the aerosol carrying virus can exist in the air for a long time, and when the next person waiting for nucleic acid sampling carries out nucleic acid sampling, the risk of cross infection is easy to generate. The invention therefore proposes a device for killing viruses in aerosols during nucleic acid sampling.
Disclosure of Invention
Based on the practical problems, the invention provides a device for quickly killing viruses in aerosol during nucleic acid sampling, the device can be used for enabling a person waiting for nucleic acid sampling to be exhaled for 1-2s of aerosol to be completely absorbed and killing the viruses in the aerosol, the inactivation efficiency can reach 99.99%, and gas discharged into air is pollution-free.
In order to achieve the purpose, the invention provides a device for rapidly killing viruses in aerosol during nucleic acid sampling, which comprises a shell, an aerosol collecting unit, a killing unit and a tail gas processing unit, wherein the aerosol collecting unit is positioned outside the shell, the killing unit and the tail gas processing unit are positioned inside the shell, the aerosol collecting unit is arranged above the killing unit, the tail gas processing unit is arranged below the killing unit, the aerosol collecting unit, the killing unit and the tail gas processing unit are in an upper-middle-lower form, and the aerosol collecting unit is connected with the tail gas processing unit through the killing unit;
the aerosol carrying the virus enters the sterilizing unit through the aerosol collecting unit, enters the tail gas treatment unit after being rapidly sterilized by the sterilizing unit, and is discharged into the air after being acted by the tail gas treatment unit.
Further, the air inlet at the upper part of the sterilizing unit is connected with the aerosol collecting unit, the lower part of the sterilizing unit is connected with the tail gas processing unit, and the aerosol collecting unit, the sterilizing unit and the tail gas processing unit are connected through pipelines.
Furthermore, the aerosol collecting unit comprises an aerosol collecting cover and a universal gas transmission pipeline, and the aerosol collecting cover and the universal gas transmission pipeline are connected and locked by a connecting pipeline; the universal gas transmission pipeline is connected with the killing unit.
Furthermore, the size of the aerosol collecting hood is 300-330mm multiplied by 400-430mm multiplied by 120-150mm, the aerosol collecting hood comprises an air inlet and an air outlet of the aerosol collecting hood, and the caliber of the air outlet of the aerosol collecting hood is 100mm.
Furthermore, the periphery of the air inlet of the aerosol collecting hood extends outwards by 16-20mm.
Furthermore, the height of the universal gas transmission pipeline can be freely adjusted, so that the universal gas transmission pipeline is suitable for the height of a person to be sampled with nucleic acid.
Further, the center of the aerosol collecting hood is in the same horizontal direction with the oral cavity of a person to sample nucleic acid.
Further, the aerosol collecting hood is in a position 150-300mm away from a person to be sampled with nucleic acid for nucleic acid sampling.
Further, the aerosol collecting cover completely collects nucleic acid and the time for the person to be sampled to exhale the aerosol is 1-2s.
Furthermore, the air outlet of the universal gas transmission pipeline is connected and locked with the air inlet of the killing unit through a connecting pipeline.
Further, the killing unit comprises a killing chamber, a fan and a killing module, wherein the fan and the killing module are positioned in the killing chamber, and the fan is positioned above the killing module; the top of the sterilizing cavity is provided with a sterilizing cavity air inlet, the bottom of the sterilizing cavity is provided with a sterilizing cavity air outlet, and the fan is close to the sterilizing cavity air inlet. Under the action of the fan, the aerosol collected by the aerosol collecting cover enters the killing chamber through the universal gas transmission pipeline through the gas inlet of the killing chamber, and the killed aerosol is discharged through the gas outlet of the killing chamber.
Further, the fan is arranged below the air inlet of the killing chamber, and the killing module is arranged below the fan.
Furthermore, the fan is arranged right below the air inlet of the killing chamber, and the killing module is arranged right below the fan.
Furthermore, the fan is arranged above the inside of the killing chamber and is arranged at the position 5-10mm below the air inlet of the killing chamber.
Further, the air intake of the fan is 0.2m 3 /min-0.4m 3 /min。
Further, the killing module is an array type plasma reactor, which is the prior art in the field.
Furthermore, the module of killing that disappears is two, disappears and kills module I and disappears and kill module II promptly, the module I that disappears is located the top of the module II that disappears of killing, disappears and kills module I and disappear and kill II parallel placements of module, and the aerosol through the fan gets into perpendicularly to disappear and kills module I and disappear and kill module II.
Furthermore, the killing modules I and II are positioned in the killing chamber and are arranged at the position 30-36mm under the air inlet fan, so that the aerosol can stay in the killing chamber for 1-2s.
Further, the side surface of the killing chamber is recessed inwards by 25-30mm, and preferably 30mm.
Furthermore, the sterilizing module is tightly connected with the wall of the sterilizing chamber through a connecting piece, so that the aerosol can completely pass through the sterilizing module.
Furthermore, the connecting piece in tight connection is made of silicon rubber.
Furthermore, the outer dimension of the killing chamber is 220-240mm multiplied by 180-200mm multiplied by 360-380mm, and the volume is 0.01-0.03m 3 。
Further, the outer diameter of an air outlet of the killing chamber is 100mm.
Further, the air outlet of the sterilizing chamber is connected and locked with the air inlet of the tail gas treatment unit through a connecting pipeline.
Further, the tail gas treatment unit comprises a tail gas treatment chamber, a G2-stage coarse-effect filter, a GC activated carbon coarse-effect filter and a negative pressure fan, wherein the G2-stage coarse-effect filter and the GC activated carbon coarse-effect filter are positioned in the tail gas treatment chamber, the G2-stage coarse-effect filter is positioned above and below the GC activated carbon coarse-effect filter, the negative pressure fan is positioned outside the tail gas treatment chamber, and the negative pressure fan is connected with the tail gas treatment chamber; the top of tail gas treatment cavity is equipped with tail gas treatment cavity air inlet, the bottom of tail gas treatment cavity is equipped with tail gas treatment cavity gas outlet. Under the action of the negative pressure fan, the aerosol entering the tail gas treatment chamber is treated by the G2-grade coarse filter and the GC active carbon coarse filter and then discharged through the air outlet of the negative pressure fan.
Furthermore, the external dimension of the tail gas treatment chamber is 300-320mm multiplied by 600-640mm.
Further, the gas outlet of the tail gas treatment chamber is connected and locked with the gas inlet of the negative pressure fan through a connecting pipeline.
Further, the air inflow of the negative pressure fan is 1000m 3 /h-1200m 3 /h。
Further, still include the power, the power is connected with the module of killing, the power is located inside the casing, negative-pressure air fan's top.
Further, the power supply is arranged 80-100mm right above the negative pressure fan.
Further, the pipe connection locking is a screw made of stainless steel, such as 304 stainless steel.
Furthermore, the shell, the killing chamber and the tail gas treatment chamber are all made of stainless steel, such as 304 stainless steel.
The invention has the beneficial effects that:
the invention is provided with an aerosol collecting unit, the aerosol collected by the aerosol collecting unit is sent to a sterilizing unit by a fan, the aerosol treated by the sterilizing unit is exhausted into the air after being acted by a tail gas treating unit, and the device can rapidly sterilize the virus-carrying aerosol exhaled in the forms of haar, yawning, sneezing and the like when a nucleic acid sampling person takes off a mask by using a sterilizing device, thereby avoiding cross infection of the aerosol staying in the air, protecting medical care personnel and the nucleic acid sampling person and reducing the probability of cross infection during nucleic acid sampling.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a perspective view of the present invention.
Fig. 4 is an external perspective view of the present invention.
Fig. 5 is an external perspective view of the present invention.
FIG. 6 is a schematic view of the structure of the killing unit of the present invention.
Fig. 7 is a schematic structural view of an exhaust gas treatment chamber according to the present invention.
Legend: 1 aerosol collecting cover, 2 universal gas transmission pipeline, 3 sterilizing unit, 4 tail gas processing unit, 5 shell, 6 negative pressure fan, 7 power cord inlet, 8 air inlet fan, 9 sterilizing module I, 10 sterilizing module II, 11 negative pressure fan air outlet, 12 aerosol collecting cover air inlet, 13 aerosol collecting cover air outlet, 14 universal gas transmission pipeline air outlet, 15 sterilizing chamber air inlet, 16 sterilizing chamber air outlet, 17 tail gas processing chamber air inlet, 18 sterilizing chamber, 19 first stage G2 grade coarse filter, 20 second stage GC active carbon coarse filter, 21 third stage G2 grade coarse filter, 22 tail gas processing chamber air outlet, 23 power supply.
Detailed Description
The device for killing viruses in aerosols during nucleic acid sampling is described in detail below by way of example.
Example 1
As shown in fig. 1-7, a device for rapidly killing viruses in aerosol during nucleic acid sampling comprises a shell 5, an aerosol collecting unit, a killing unit 3 and a tail gas processing unit 4; the aerosol collecting unit consists of an aerosol collecting cover 1 and a universal gas transmission pipeline 2, and the universal gas transmission pipeline 2 is connected with the sterilizing unit 3; the aerosol collecting unit is located the outside of casing 5, and unit 3, the tail gas processing unit 4 of killing are located the inside of casing 5, and the unit 3 top of killing is arranged in to the aerosol collecting unit, and unit 3 below is arranged in to tail gas processing unit 4, and the aerosol collecting unit, unit 3 and the tail gas processing unit 4 of killing appear about the form, the aerosol collecting unit is connected with tail gas processing unit 4 through unit 3 of killing.
The sterilizing unit 3 comprises a sterilizing cavity 18, an air inlet fan 8 and two sterilizing modules, wherein the two sterilizing modules are respectively a sterilizing module I9 and a sterilizing module II 10, the air inlet fan 8 and the sterilizing module are positioned in the sterilizing cavity 18, and the air inlet fan 8 is positioned above the sterilizing module; the top of the sterilizing cavity 18 is provided with a sterilizing cavity air inlet 15, the bottom of the sterilizing cavity 18 is provided with a sterilizing cavity air outlet 16, and the air inlet fan 8 is close to the sterilizing cavity air inlet 15. The killing module is an array type plasma reactor.
The tail gas treatment unit 4 consists of a tail gas treatment chamber, a G2-grade coarse-filter 19, a GC activated carbon coarse-filter 20, a G2-grade coarse-filter 21 and a negative pressure fan 6; the G2-stage coarse filter and the GC active carbon coarse filter are positioned in the tail gas treatment chamber, the G2-stage coarse filter 19 is positioned above and below the GC active carbon coarse filter 20, the negative pressure fan 6 is positioned outside the tail gas treatment chamber, and the negative pressure fan 6 is connected with the tail gas treatment chamber; the top of the tail gas treatment chamber is provided with a tail gas treatment chamber air inlet 17, and the bottom of the tail gas treatment chamber is provided with a tail gas treatment chamber air outlet 18.
The aerosol collecting hood 1 is composed of an aerosol collecting hood air inlet 12 and an aerosol collecting hood air outlet 13, the size of the aerosol collecting hood 1 is 330mm multiplied by 430mm multiplied by 150mm, the periphery of the aerosol collecting hood air inlet 12 extends outwards for 20mm, and the caliber of the aerosol collecting hood air outlet 13 is 100mm. In the nucleic acid sampling site, a person to be sampled nucleic acid is positioned at the center of the air inlet 12 of the aerosol collecting hood, and is preferably 150mm-300mm away from the air inlet of the aerosol collecting hood horizontally, so that exhaled aerosol can be better collected.
The size of the killing unit 3 is 240mm multiplied by 180mm multiplied by 360mm, and the volume is 0.01m 3 (ii) a The dimensions of the killing chamber 18 in the killing unit 3 are 240mm x 180mm x 240mm. In the sterilizing chamberInside 18, 8mm under air inlet fan 8 arranges air inlet 15 of the chamber of killing that disappears in, 30mm under air inlet fan 8 is arranged in to the module of killing that disappears I9, and the module of killing that disappears II 10 and the module of killing that disappears I9 parallel arrangement, and the module of killing that disappears II 10 is located and disappears 15mm under the module of killing I9. The external appearance size of the tail gas adsorption cavity is 300mm multiplied by 600mm. The three filters are arranged in the tail gas treatment chamber, the G2-stage coarse filter 19 is located 15mm under the tail gas treatment chamber air inlet 17, the GC active carbon coarse filter 20 is located 19 mm under the G2-stage coarse filter, and the G2-stage coarse filter 21 is located 15mm under the GC active carbon coarse filter 20. 3. The filters are placed in parallel and perpendicular to the direction of gas flow, and the volume of the GC activated carbon coarse filter 20 is 15L. The air inflow of the negative-pressure fan is 1100m 3 /h。
The sterilizing module is tightly connected with the wall of the sterilizing cavity 18 through a connecting piece, so that aerosol is ensured to completely pass through the sterilizing module. The side surface of the tightly connected cavity to be sterilized 18 is inwards sunken by 30mm, and the tightly connected connecting piece is made of silicon rubber. The air outlet 13 of the aerosol collecting hood is connected and locked with the air inlet of the universal gas transmission pipeline through a connecting pipeline.
In the embodiment, the air conditioner further comprises a power supply 23, and the power supply 23 is arranged 80mm above the negative pressure fan 6. The power supply 23 is supplied with power by the power line inlet 7 and is connected with the killing module I9 and the killing module II 10 through cables to generate plasma.
The method comprises the steps that firstly, exhaled aerosol of a person to be sampled of nucleic acid is collected by an aerosol collecting cover 1, then is sent into a killing unit 3 through a universal gas transmission pipeline 2 under the action of a gas inlet fan 8, the aerosol carrying viruses is killed by a killing module I9 and a killing module II 10, the aerosol treated by a killing chamber 18 enters an exhaust gas treatment unit 4, and is adsorbed and filtered by a G2-stage coarse filter 19 in a first stage, a GC activated carbon coarse filter 20 in a second stage and a G2-stage coarse filter 21 in a third stage in the exhaust gas treatment unit 4, and then exhaust gas is discharged by a negative pressure fan 6. The aerosol exhaled by the person to be sampled of nucleic acid is collected by the aerosol collecting hood 1 and enters the universal gas transmission pipeline 2 through the air outlet 13 of the aerosol collecting hood under the action of the air inlet fan 8 of the sterilizing unit 3.
The aerosol entering the tail gas treatment chamber is firstly subjected to the first stage adsorption treatment by a G2-stage coarse filter 19; the aerosol after the first-stage adsorption treatment is subjected to second-stage filtration treatment by a GC active carbon coarse filter 20; the aerosol after the second stage filtration is subjected to adsorption treatment in the third stage by a G2-stage coarse filter 21; the aerosol passing through the tail gas treatment chamber is exhausted into the air from the air outlet 11 of the negative pressure fan through the negative pressure fan 6.
Example 2
As shown in fig. 1-7, a device for rapidly killing viruses in aerosol during nucleic acid sampling comprises a shell 5, an aerosol collecting unit, a killing unit 3 and a tail gas treatment unit 4; the aerosol collecting unit consists of an aerosol collecting cover 1 and a universal gas transmission pipeline 2, and the universal gas transmission pipeline 2 is connected with the sterilizing unit 3; the aerosol collecting unit is located the outside of casing 5, and unit 3, the tail gas processing unit 4 that kill are located the inside of casing 5, and the aerosol collecting unit is arranged in and is killed unit 3 top, and unit 3 below is killed in arranging in to tail gas processing unit 4, and aerosol collecting unit, unit 3 and the tail gas processing unit 4 form about presenting, the aerosol collecting unit is connected with tail gas processing unit 4 through killing unit 3.
The sterilizing unit 3 comprises a sterilizing cavity 18, an air inlet fan 8 and two sterilizing modules, wherein the two sterilizing modules are respectively a sterilizing module I9 and a sterilizing module II 10, the air inlet fan 8 and the sterilizing module are positioned in the sterilizing cavity 18, and the air inlet fan 8 is positioned above the sterilizing module; the top of the sterilizing cavity 18 is provided with a sterilizing cavity air inlet 15, the bottom of the sterilizing cavity 18 is provided with a sterilizing cavity air outlet 16, and the air inlet fan 8 is close to the sterilizing cavity air inlet 15. The killing module is an array type plasma reactor.
The tail gas treatment unit 4 consists of a tail gas treatment chamber, a G2-grade coarse-filter 19, a GC activated carbon coarse-filter 20, a G2-grade coarse-filter 21 and a negative pressure fan 6; the G2-stage coarse filter and the GC active carbon coarse filter are positioned in the tail gas treatment chamber, the G2-stage coarse filter 19 is positioned above and below the GC active carbon coarse filter 20, the negative pressure fan 6 is positioned outside the tail gas treatment chamber, and the negative pressure fan 6 is connected with the tail gas treatment chamber; the top of the tail gas treatment chamber is provided with a tail gas treatment chamber air inlet 17, and the bottom of the tail gas treatment chamber is provided with a tail gas treatment chamber air outlet 18.
The aerosol collecting hood 1 is composed of an aerosol collecting hood air inlet 12 and an aerosol collecting hood air outlet 13, the size of the aerosol collecting hood 1 is 330mm multiplied by 430mm multiplied by 150mm, the periphery of the aerosol collecting hood air inlet 12 extends outwards for 20mm, and the caliber of the aerosol collecting hood air outlet 13 is 100mm. In the nucleic acid sampling site, a person to be sampled nucleic acid is positioned at the center of the air inlet 12 of the aerosol collecting hood, and is preferably 150mm-300mm away from the air inlet of the aerosol collecting hood horizontally, so that exhaled aerosol can be better collected.
The size of the killing unit 3 is 240mm multiplied by 180mm multiplied by 360mm, and the volume is 0.01m 3 (ii) a The dimensions of the killing chamber 18 in the killing unit 3 are 240mm x 180mm x 240mm. Inside killing the cavity 18, 8mm under air inlet fan 8 place killing the cavity air inlet 15 in, 30mm under air inlet fan 8 is placed in to the module of killing I9 that disappears, and the module of killing II 10 and the module of killing I9 parallel placement that disappears, and the module of killing II 10 that disappears is located the module of killing I9 under 15mm. The external dimension of the tail gas adsorption cavity is 300mm multiplied by 600mm. The three filters are arranged in the tail gas treatment chamber, the G2-stage coarse filter 19 is located 15mm under the tail gas treatment chamber air inlet 17, the GC active carbon coarse filter 20 is located 19 mm under the G2-stage coarse filter, and the G2-stage coarse filter 21 is located 15mm under the GC active carbon coarse filter 20. 3. The filters are placed in parallel and perpendicular to the direction of gas flow, and the volume of the GC activated carbon coarse filter 20 is 15L. The air inflow of the negative-pressure fan is 1100m 3 /h。
The sterilizing module is tightly connected with the wall of the sterilizing cavity 18 through a connecting piece, so that the aerosol can completely pass through the sterilizing module. The side surface of the tightly connected cavity to be sterilized 18 is inwards sunken by 30mm, and the tightly connected connecting piece is made of silicon rubber. The air outlet 13 of the aerosol collecting hood is connected and locked with the air inlet of the universal gas transmission pipeline through a connecting pipeline. The air outlet 14 of the universal gas transmission pipeline is connected and locked with the air inlet 15 of the killing chamber through a connecting pipeline. The kill chamber 18 is secured to the housing 5 by stainless steel 304 screws. The air outlet 16 of the sterilizing chamber and the air inlet 17 of the tail gas treatment chamber are connected and locked through a connecting pipeline. The aerosol treated by the killing chamber 18 enters the tail gas treatment unit 4 from the gas outlet 16 of the killing chamber and the gas inlet 17 of the tail gas treatment chamber. The tail gas treatment chamber and the negative pressure fan 6 are locked with the shell 5 through stainless steel 304 screws.
In the embodiment, the air conditioner further comprises a power supply 23, and the power supply 23 is arranged 80mm above the negative pressure fan 6. The power supply 23 is supplied with power by the power line inlet 7 and is connected with the killing module I9 and the killing module II 10 through cables to generate plasma.
The method comprises the steps that firstly, exhaled aerosol of a person to be sampled of nucleic acid is collected by an aerosol collecting cover 1, then is sent into a killing unit 3 through a universal gas transmission pipeline 2 under the action of a gas inlet fan 8, the aerosol carrying viruses is killed by a killing module I9 and a killing module II 10, the aerosol treated by a killing chamber 18 enters an exhaust gas treatment unit 4, and is adsorbed and filtered by a G2-stage coarse filter 19 in a first stage, a GC activated carbon coarse filter 20 in a second stage and a G2-stage coarse filter 21 in a third stage in the exhaust gas treatment unit 4, and then exhaust gas is discharged by a negative pressure fan 6. The aerosol exhaled by the person to be sampled of nucleic acid is collected by the aerosol collecting cover 1 under the action of the air inlet fan 8 of the sterilizing unit 3, and enters the universal gas transmission pipeline 2 through the air outlet 13 of the aerosol collecting cover.
The aerosol entering the tail gas treatment chamber is firstly subjected to adsorption treatment in a first stage by a G2-stage coarse filter 19; the aerosol after the first-stage adsorption treatment is subjected to second-stage filtration treatment by a GC active carbon coarse filter 20; the aerosol after the second stage filtration is subjected to adsorption treatment in the third stage by a G2-stage coarse filter 21; the aerosol passing through the tail gas treatment chamber is exhausted into the air from the air outlet 11 of the negative pressure fan through the negative pressure fan 6.
Claims (10)
1. A device for rapidly killing viruses in aerosol during nucleic acid sampling is characterized by comprising a shell, an aerosol collecting unit, a killing unit and a tail gas processing unit, wherein the aerosol collecting unit is positioned outside the shell, the killing unit and the tail gas processing unit are positioned inside the shell, the aerosol collecting unit is arranged above the killing unit, the tail gas processing unit is arranged below the killing unit, and the aerosol collecting unit is connected with the tail gas processing unit through the killing unit;
the aerosol carrying the virus enters the sterilizing unit through the aerosol collecting unit, enters the tail gas treatment unit after being sterilized by the sterilizing unit, and is discharged into the air after being acted by the tail gas treatment unit.
2. The device for killing viruses in aerosol during nucleic acid sampling according to claim 1, wherein the aerosol collecting unit comprises an aerosol collecting cover and a universal gas transmission pipeline, and the universal gas transmission pipeline is connected with the killing unit.
3. The device for killing viruses in aerosol during nucleic acid sampling according to claim 1, wherein the killing unit comprises a killing chamber, a fan and a killing module, the fan and the killing module are positioned in the killing chamber, and the fan is positioned above the killing module.
4. The device of claim 1, wherein the tail gas treatment unit comprises a tail gas treatment chamber, a G2-stage coarse filter, a GC activated carbon coarse filter and a negative pressure fan, the G2-stage coarse filter and the GC activated carbon coarse filter are located inside the tail gas treatment chamber, the G2-stage coarse filter is located above and below the GC activated carbon coarse filter, the negative pressure fan is located outside the tail gas treatment chamber, and the negative pressure fan is connected with the tail gas treatment chamber.
5. The device for killing viruses in aerosol during nucleic acid sampling according to claim 1, 2, 3 or 4, wherein the size of the aerosol collecting hood is 300-330mm x 400-430mm x 120-150mm, the aperture of the air outlet of the aerosol collecting hood is 100mm, and the circumference of the air inlet of the aerosol collecting hood extends outwards by 16-20mm;
the size of a killing cavity in the killing unit is 220-240mm multiplied by 180-200mm multiplied by 240-260mm;
the size of the killing unit is 220-240mm multiplied by 180-200mm multiplied by 360-380mm, and the volume is 0.01-0.03m 3 ；
The size of the tail gas adsorption chamber is 300-320mm multiplied by 600-640mm.
6. The device for killing virus in aerosol during nucleic acid sampling according to claim 2, wherein the center of the aerosol collecting hood is in the same horizontal direction with the oral cavity of the person to sample nucleic acid.
7. A device for killing viruses in aerosol during nucleic acid sampling according to claim 2 or 6, wherein the aerosol collecting hood is 150mm-300mm away from a person whose nucleic acid is to be sampled.
8. The device for killing the virus in the aerosol during the nucleic acid sampling according to claim 3, wherein the internal fan of the killing unit is arranged 30-36mm right above the killing module; the fan is arranged 5-10mm under the center of the air inlet of the killing chamber.
9. The device for killing the virus in the aerosol during the nucleic acid sampling according to claim 1 or 3, wherein the killing modules in the killing unit are two and are tightly connected with the wall of the killing chamber; the side surface of the close connection chamber to be killed is recessed inwards by 25-30mm.
10. The device for killing the virus in the aerosol during the nucleic acid sampling according to claim 3 or 4, wherein the killing module is an array plasma reactor; the negative pressure fan is used for air inletThe amount is 1000-1200m 3 H; the power supply is connected with the sterilizing module and is positioned inside the shell and above the negative pressure fan.
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| CN202211230007.3A CN115645590A (en) | 2022-10-09 | 2022-10-09 | Device for rapidly killing viruses in aerosol during nucleic acid sampling |
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| CN213841250U (en) * | 2020-05-27 | 2021-07-30 | 合肥清森净化科技有限公司 | Air sterilizer for medical treatment |
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2022
- 2022-10-09 CN CN202211230007.3A patent/CN115645590A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203060377U (en) * | 2012-12-12 | 2013-07-17 | 紫生高科（北京）科技有限公司 | Photocatalyst air sterilizer for breathing machine |
| CN203540235U (en) * | 2013-11-15 | 2014-04-16 | 东莞市汇乐清洁设备有限公司 | Detachable type smoke dust purification and disinfection device |
| CN111467956A (en) * | 2020-04-08 | 2020-07-31 | 南京医科大学附属口腔医院 | Modified nano titanium dioxide photocatalyst oral cavity examination room droplet and aerosol suction device |
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Effective date of registration: 20241027 Address after: No. 30, Hongmei Community, Dalian Economic and Technological Development Zone, Liaoning Province 116600 Applicant after: Liu Dongping Country or region after: China Address before: No. 188-18, Jinma Road, Dalian Economic and Technological Development Zone, Liaoning 116000 Applicant before: Dalian Saina Technology Co.,Ltd. Country or region before: China |