阅读说明：本技术 纳米气溶胶消毒设备 (Nano aerosol disinfection equipment ) 是由 咸威 咸寿荣 于 2020-06-15 设计创作，主要内容包括：本发明涉及空气及物体表面消毒领域,特别是将消毒液转化成纳米级气溶胶的纳米气溶胶消毒设备。该纳米气溶胶消毒设备包括：雾化装置,所述雾化装置用于生成气溶胶液雾；筛分装置,所述筛分装置与所述雾化装置连通,且内部设有能够在所述筛分装置中形成弯曲延伸的载气流路的阻隔件；分布装置,所述分布装置包括：与所述筛分装置连通的液雾室、与所述液雾室隔开的气流室、连通所述液雾室和所述气流室的混合气化区以及与所述混合气化区连通的液雾喷口。本发明提供的纳米气溶胶消毒设备能够在不借助诸如加热装置等设备的情况下,将消毒液有效地转换为纳米级的气溶胶液雾从而用于进行消毒操作。(The invention relates to the field of air and object surface disinfection, in particular to a nano aerosol disinfection device for converting disinfectant into nano aerosol. The nano aerosol disinfection device comprises: an atomizing device for generating an aerosol liquid mist; the screening device is communicated with the atomizing device, and a barrier capable of forming a bent and extended carrier gas flow path in the screening device is arranged in the screening device; a distribution device, the distribution device comprising: the liquid mist spraying device comprises a liquid mist chamber communicated with the screening device, an airflow chamber separated from the liquid mist chamber, a mixed gasification area communicated with the liquid mist chamber and the airflow chamber, and a liquid mist nozzle communicated with the mixed gasification area. The nano aerosol disinfection equipment provided by the invention can effectively convert the disinfection solution into nano aerosol mist without the aid of equipment such as a heating device and the like so as to be used for disinfection operation.)

1. A nano-aerosol disinfection apparatus, comprising:

an atomizing device for generating an aerosol liquid mist;

the screening device is communicated with the atomizing device, and a barrier capable of forming a bent and extended carrier gas flow path in the screening device is arranged in the screening device;

a distribution device, the distribution device comprising: the liquid mist spraying device comprises a liquid mist chamber communicated with the screening device, an airflow chamber separated from the liquid mist chamber, a mixed gasification area communicated with the liquid mist chamber and the airflow chamber, and a liquid mist nozzle communicated with the mixed gasification area.

2. Nano-aerosol disinfection apparatus according to claim 1, characterized in that the sieving means comprises a housing and the barrier is arranged in the housing, the bottom of the housing being provided with an inlet communicating with the atomizing means and the top with an outlet communicating with the liquid mist chamber of the distribution means.

3. The nano-aerosol disinfection apparatus of claim 2, wherein the baffle comprises a first set of baffles and a second set of baffles in the housing, the first set of baffles and the second set of baffles being arranged along a height direction of the screening device and being laterally spaced apart,

wherein the first set of baffles meet the bottom of the housing and are spaced apart from the top, the second set of baffles meet the top of the housing and are spaced apart from the bottom, and the second set of baffles are located between the first set of baffles.

4. Nano-aerosol disinfection apparatus according to claim 2, characterized in that the barrier is a spiral-shaped plate arranged in the housing and extending in the height direction of the sieving device.

5. The nano aerosol disinfection apparatus of claim 2, wherein the barrier comprises a plurality of barrier units disposed in the housing and sequentially connected in a height direction of the sieving device,

wherein each of the barrier units comprises a base with a transverse aperture and a transverse partition located on the base and bordering opposite side walls of the housing.

6. The nano-aerosol disinfection apparatus of claim 2, wherein the baffle comprises a plurality of first baffles and a plurality of second baffles disposed transversely in the housing, the first baffles and the second baffles being alternately disposed along a height of the screening device,

the outer edge of the first partition plate is separated from the inner wall of the shell, the surface of the second partition plate is provided with an orifice, the outer edge of the second partition plate is connected with the inner wall of the shell, and the first partition plate and the second partition plate are connected through a connecting piece arranged along the height direction of the screening device.

7. A nano-aerosol disinfection apparatus according to any one of claims 1 to 6, wherein said distribution means comprises:

the mist distribution cylinder is communicated with the screening device, and a plurality of first mist discharge openings are formed in the side wall of the mist distribution cylinder;

the shunting barrel is sleeved outside the mist distributing barrel, a plurality of second mist discharging openings communicated with the mixed gasification area are formed in the side wall of the shunting barrel, and the area between the mist distributing barrel and the shunting barrel forms the liquid mist chamber;

the shell is sleeved outside the flow dividing cylinder, the side wall of the shell is provided with a plurality of air inlets and a plurality of liquid mist nozzles, the area between the flow dividing cylinder and the shell forms the airflow chamber,

the first fog discharge port and the opening direction of the air inlet are the same, and the second fog discharge port and the opening direction of the liquid fog nozzle are the same and different from the opening direction of the first fog discharge port and the opening direction of the air inlet.

8. The nano-aerosol disinfection apparatus of claim 7, wherein a plurality of the first mist discharge openings are arranged on a side wall of the mist distribution cylinder in a height direction of the mist distribution cylinder,

the aperture of all the first fog discharge ports is the same, and the hole distance close to the joint of the fog distributing cylinder and the screening device is smaller than the hole distance far away from the joint of the fog distributing cylinder and the screening device; or

The hole intervals of all the first fog discharge ports are the same, and the hole diameter close to the joint of the fog separating cylinder and the screening device is larger than the hole diameter far away from the joint of the fog separating cylinder and the screening device.

9. The nano-aerosol disinfection apparatus of claim 7, wherein the distribution device further comprises a plurality of fans disposed outside the housing, wherein each of the fans is disposed in correspondence with a position of one of the air inlets.

10. Nano-aerosol disinfection apparatus according to claim 1, characterized in that the atomizing means comprise:

the probe is arranged on the base and used for supplying power;

the atomizing spray head is detachably arranged on the base, a piezoelectric transducer is arranged in the atomizing spray head, a conductive piece is arranged at the bottom of the atomizing spray head, the piezoelectric transducer is electrically connected with the conductive piece, and the conductive piece is electrically contacted with the probe;

the liquid fog generating chamber is installed on the base and located above the atomizing spray head, and is provided with a liquid inlet and an air inlet.

11. The nano aerosol disinfection apparatus of claim 10, wherein the atomizer head comprises an upper cap and a lower cap that are removably coupled together,

wherein, piezoelectric transducer encapsulates between the upper cover with the lower cover, and it has the transducer cushion to fill between piezoelectric transducer and the upper cover with the lower cover, electrically conductive piece is constructed the copper nail that sets up in the lower cover bottom.

12. Nano-aerosol disinfection apparatus according to claim 10 or 11, wherein the liquid mist generation chamber comprises:

the generation chamber shell is arranged on the base and is positioned above the atomizing spray head, and the liquid inlet and the air inlet are positioned on the side wall of the generation chamber shell;

take place the indoor pipe, take place indoor tub of being located in taking place the outdoor shell, take place the indoor pipe the open-top with screening plant intercommunication, and the bottom opening with the bottom of taking place the outdoor shell separates, wherein the inlet with the opening direction orientation of air inlet take place the outer wall of indoor pipe.

13. Nano-aerosol sterilisation apparatus according to claim 12, wherein at least a portion of the walls of the inner tube of the generation chamber are arranged to: a tapered tube wall tapering in a direction from the top opening to the bottom opening.

Technical Field

The invention relates to the field of air and object surface disinfection, in particular to a nano aerosol disinfection device for converting disinfectant into nano aerosol.

Background

The atomization disinfection technology is a technology which decomposes a liquid disinfectant into fine liquid drops and then sends the fine liquid drops into the air or the surface of an object so as to realize the disinfection effect. Common atomization disinfection methods include ultrasonic atomization, two-fluid atomization, steam atomization and the like, the two-fluid atomization particles are generally large and are 7-20 microns, the atomization particles are large and uneven, and if the particle size is less than 5 microns, the atomization efficiency is very low. The atomized particles of the traditional ultrasonic atomization disinfection equipment can be between 3 and 5 microns, but the atomized particles are still large, which can cause the defects of large humidity of a disinfection space, unfavorable diffusion of a disinfectant, poor diffusion effect, low concentration of disinfectant fog and the like, thereby reducing the disinfection effect. Steam type disinfection can reach submicron level to nanometer aerosol level, but is equipped with heating device usually and carries out the evaporation disinfectant, and this is not suitable for some disinfectant that temperature stability is poor, and hypochlorous acid can decompose under high temperature environment fast, can not have heating device in the whole degassing unit.

Disclosure of Invention

In view of the shortcomings of the prior art, embodiments of the present invention provide a nano-aerosol disinfection apparatus to at least achieve efficient conversion of disinfection fluid into nano-sized aerosol particles for disinfection.

According to an embodiment of the present invention, there is provided a nano aerosol disinfection apparatus, including: an atomizing device for generating an aerosol liquid mist; the screening device is communicated with the atomizing device, and a barrier capable of forming a bent and extended carrier gas flow path in the screening device is arranged in the screening device; a distribution device, the distribution device comprising: the liquid mist spraying device comprises a liquid mist chamber communicated with the screening device, an airflow chamber separated from the liquid mist chamber, a mixed gasification area communicated with the liquid mist chamber and the airflow chamber, and a liquid mist nozzle communicated with the mixed gasification area.

According to an embodiment of the invention, the screening device comprises a housing and the barrier is arranged in the housing, the bottom of the housing being provided with an inlet communicating with the atomizing device and the top with an outlet communicating with the liquid mist chamber of the distribution device.

According to an embodiment of the invention, the barrier comprises a first and a second set of baffles in the housing, the baffles of the first and second set being arranged in the height direction of the screening device and being laterally spaced apart, wherein the first set of baffles meets the bottom of the housing and is spaced apart from the top, the baffles of the second set meet the top of the housing and is spaced apart from the bottom, and the baffles of the second set are located between the baffles of the first set.

According to an embodiment of the invention, the barrier is a helical plate arranged in the housing and extending in the height direction of the screening device.

According to an embodiment of the invention, the barrier comprises a plurality of barrier units arranged in the housing and adjoining one after the other in the height direction of the screening device, wherein each barrier unit comprises a base with a transverse aperture and a transverse partition on the base and adjoining opposite side walls of the housing.

According to an embodiment of the invention, the barrier comprises a plurality of first partitions and a plurality of second partitions arranged transversely in the housing, the first partitions and the second partitions being arranged alternately in the height direction of the screening device, wherein the outer edges of the first partitions are spaced from the inner wall of the housing, the outer edges of the second partitions are formed with apertures and meet the inner wall of the housing, and the first partitions and the second partitions are connected by a connecting piece arranged in the height direction of the screening device.

According to an embodiment of the invention, the distribution means comprises: the mist distribution cylinder is communicated with the screening device, and a plurality of first mist discharge openings are formed in the side wall of the mist distribution cylinder; the shunting barrel is sleeved outside the mist distributing barrel, a plurality of second mist discharging openings communicated with the mixed gasification area are formed in the side wall of the shunting barrel, and the area between the mist distributing barrel and the shunting barrel forms the liquid mist chamber; the casing, the casing cover is established the outside of reposition of redundant personnel section of thick bamboo, be equipped with a plurality of air inlets and a plurality of on the lateral wall of casing the liquid fog spout, the reposition of redundant personnel section of thick bamboo with regional formation between the casing the air current room, wherein, first row of fog mouth with the opening direction of air inlet is the same, second row of fog mouth with the opening direction of liquid fog spout is the same and with first row of fog mouth with the opening direction of air inlet is different.

According to the embodiment of the invention, the plurality of first fog discharge openings are arranged on the side wall of the fog distribution cylinder along the height direction of the fog distribution cylinder, wherein the aperture of all the first fog discharge openings is the same as each other, and the hole spacing close to the joint of the fog distribution cylinder and the screening device is smaller than the hole spacing far from the joint of the fog distribution cylinder and the screening device; or the hole intervals of all the first fog discharge ports are the same, and the hole diameter close to the joint of the fog separating cylinder and the screening device is larger than the hole diameter far away from the joint of the fog separating cylinder and the screening device.

According to an embodiment of the present invention, the distribution device further includes a plurality of fans disposed outside the housing, wherein each of the fans is disposed corresponding to a position of one of the air inlets.

According to an embodiment of the invention, the atomizing device comprises: the probe is arranged on the base and used for supplying power; the atomizing spray head is detachably arranged on the base, a piezoelectric transducer is arranged in the atomizing spray head, a conductive piece is arranged at the bottom of the atomizing spray head, the piezoelectric transducer is electrically connected with the conductive piece, and the conductive piece is electrically contacted with the probe; the liquid fog generating chamber is installed on the base and located above the atomizing spray head, and is provided with a liquid inlet and an air inlet.

According to the embodiment of the invention, the atomizer comprises an upper cover and a lower cover which are detachably connected together, wherein the piezoelectric transducer is packaged between the upper cover and the lower cover, transducer rubber pads are filled between the piezoelectric transducer and the upper cover and the lower cover, and the conductive piece is configured as a copper nail arranged at the bottom of the lower cover.

According to an embodiment of the present invention, the liquid mist generating chamber includes: the generation chamber shell is arranged on the base and is positioned above the atomizing spray head, and the liquid inlet and the air inlet are positioned on the side wall of the generation chamber shell; take place the indoor pipe, take place indoor tub of being located in taking place the outdoor shell, take place the indoor pipe the open-top with screening plant intercommunication, and the bottom opening with the bottom of taking place the outdoor shell separates, wherein the inlet with the opening direction orientation of air inlet take place the outer wall of indoor pipe.

According to an embodiment of the invention, at least a part of the wall of the inner tube of the generation chamber is arranged to: a tapered tube wall tapering in a direction from the top opening to the bottom opening.

In the nano aerosol disinfection equipment provided by the embodiment of the invention, firstly, aerosol liquid mist with the average particle size in a range of 3-5 microns is generated by an atomizing device; then the aerosol liquid fog travels along a carrier gas flow path extending in a bending way in the screening device, and the large particle liquid fog is blocked when colliding with the wall surface or a blocking piece of the screening device, so that the aerosol liquid fog is screened by the screening device, and the liquid fog with the average particle size of about 500 nanometers can flow out; the liquid mist then enters the distribution means and the aerosol mist is mixed with the carrier gas stream at the mixing and vaporizing zone and ejected through the mist nozzle, whereupon the aerosol mist is further refined to an average particle size in the range of less than about 100 nanometers. In this way, the nano aerosol disinfection equipment provided by the invention can effectively convert the disinfection solution into nano aerosol mist for disinfection operation without the aid of equipment such as a heating device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of one embodiment of a nano-aerosol disinfection apparatus of the present invention;

figures 2A to 2D are cross-sectional views of various embodiments of screening devices in the embodiment shown in figure 1;

FIG. 3 is an enlarged view of a portion A of the embodiment shown in FIG. 1;

FIG. 4 is a cross-sectional view taken along line B-B in the embodiment of FIG. 3;

FIG. 5 is a partial schematic structural view of an embodiment of the mist distributing cylinder in the embodiment shown in FIGS. 3 and 4;

FIG. 6 is a schematic diagram of the construction of one embodiment of the atomizing device of the embodiment of FIG. 1;

FIG. 7 is a perspective view of one embodiment of the base of the embodiment of FIG. 6;

FIG. 8 is a cross-sectional view of one embodiment of the atomizer head of the embodiment shown in FIG. 6;

FIG. 9 is a cross-sectional perspective view of one embodiment of a generation chamber housing of the liquid mist generation chamber of the embodiment shown in FIG. 6.

Reference numerals:

100: nano aerosol disinfection equipment; 102: an atomizing device; 104: a screening device; 106: a distribution device; 108: a housing; 110: a barrier; 112: an inlet; 114: an outlet; 116: a first set of baffles; 118: a second set of baffles; 120: a barrier unit; 122: a base; 124: a transverse partition; 126: a first separator; 128: a second separator; 130: a connecting member; 132: a mist distributing cylinder; 134: a shunt cylinder; 136: a housing; 138: a first mist discharge port; 140: a second mist discharge port; 142: an air inlet; 144: a liquid mist nozzle; 146: a fan; 148: a base; 150: an atomizing spray head; 152: a liquid mist generating chamber; 154: a probe; 156: a piezoelectric transducer; 158: a conductive member; 160: a liquid inlet; 162: an air inlet; 164: an upper cover; 166: a lower cover; 168: a transducer cushion; 170: a generation chamber housing; 172: a generation chamber inner tube; s1: a mixed gasification zone; s2: a liquid mist chamber; s3: an airflow chamber.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, 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.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1 to 9, the embodiment of the present invention provides a nano aerosol disinfection apparatus. Embodiments of the nano-aerosol disinfection apparatus will now be described by way of example. It is to be understood that the following description is only exemplary embodiments of the present invention and is not intended to limit the present invention in any way.

In an embodiment of the present invention, as shown in fig. 1, a nano-aerosol disinfection apparatus 100 is provided. The nano-aerosol disinfection apparatus 100 may generally include an aerosolization device 102, a screening device 104, and a distribution device 106.

In particular, the atomizing device 102 can be used for generating the aerosol mist, and the screening device 104 can be in communication with the atomizing device 102 for receiving and screening the aerosol mist generated by the atomizing device 102, wherein the screening device 104 can be provided with a barrier inside. In particular, the barrier can be used to form a curved extending carrier gas flow path in the screening device 104. Further, the distribution device 106 may include a liquid mist chamber, a gas flow chamber, a mixing and vaporizing zone, and liquid mist nozzles. In one embodiment, the mist chamber may be in communication with the screening device 104 to receive the aerosol mist screened by the screening device 104. The airflow chamber may be separate from the mist chamber and configured to convey the airflow. The mixed gasification area is communicated with the liquid fog chamber and the airflow chamber, so that the liquid fog and the airflow of the aerosol can be mixed and gasified in the area. Then, the liquid mist after the mixed gasification can be sprayed out through a liquid mist nozzle communicated with the mixed gasification area so as to disinfect the target to be disinfected.

As is apparent from the above description, in the nano aerosol sterilizing apparatus 100 provided by the embodiment of the present invention, first, the aerosol mist having an average particle diameter in a range of, for example, 3 to 5 μm may be generated by the atomizing device 102. Then, the aerosol mist travels along a curved carrier gas flow path in the sieving device 104, and the large particle mist is blocked when colliding with the wall surface or the barrier of the sieving device, so that the aerosol mist is sieved by the sieving device 104, and the mist with an average particle size of, for example, about 500 nm can flow out; the liquid mist then enters the distribution device 106 and the aerosol liquid mist is mixed with the carrier gas stream at the mixing and vaporizing zone and ejected through the liquid mist nozzle, whereupon the aerosol liquid mist is further refined to a range of average particle sizes less than about 100 nanometers. In this way, the nano-aerosol disinfection apparatus 100 provided by the present invention can effectively convert the disinfection solution into nano-aerosol mist for disinfection operation without the aid of equipment such as a heating device.

The atomizing device 102, the sieving device 104 and the distribution device 106 in the nano-aerosol disinfection apparatus 100 will be described below in an embodiment. It should be understood that the following examples are only illustrative of the present invention and are not intended to limit the present invention in any way.

In particular, as shown in FIGS. 2A-2D, cross-sectional views of various different embodiments of the screening device 104 of the embodiment shown in FIG. 1 are shown, respectively. For the screening arrangement 104, it may generally comprise a housing 108 and a barrier 110 disposed in the housing 108. Further, the bottom of the housing 108 may be provided with an inlet 112 communicating with the nebulizing device 102, and the top of the housing 108 may be provided with an outlet 114 communicating with the liquid mist chamber of the distribution device 106. Furthermore, the barrier 110 can be used to form a tortuous extending carrier gas flow path in the housing 108 of the screening device 104, thereby lengthening the flow path of the aerosol mist in the screening device 104.

For the baffle 110, it can be used to block large aerosolized particles. In other words, during use, the large droplets more easily hit the barrier 110 and return or condense on the barrier 110, so that the droplets cannot rise continuously, and the particle size of the droplets can be screened. In addition, the provision of the baffle 110 in the screening device 104 allows the flow path of the carrier gas to be substantially increased and a cyclonic vortex to be formed, thereby increasing the residence time of the liquid mist in the air. In this way, the droplets with larger particle size will fall back into the atomizer 102 due to gravity for re-atomization.

In one embodiment, as shown in FIG. 2A, the barrier 110 may include a first set of baffles 116 and a second set of baffles 118 located in the housing 108, and the first set of baffles 116 and the second set of baffles 118 may be arranged and spaced laterally along the height of the screening device 104.

In the embodiment shown in FIG. 2A, the first set of baffles 116 comprises two baffles, and the second set of baffles 118 likewise comprises two baffles. Further, the first set of baffles 116 may meet the bottom of the housing 108 and be spaced from the top; correspondingly, the second set of baffles 118 may be contiguous with the top of the housing 108 and spaced from the bottom. Further, the second set of baffles 118 may be disposed between the first set of baffles 116, e.g., two baffles in the second set of baffles 118 are each disposed between two baffles in the first set of baffles 116.

It should be understood here that the number and connection relationship of the first group of partition plates 116, the number and connection relationship of the second group of partition plates 118, and the positional relationship between the first group of partition plates 116 and the second group of partition plates 118 may be appropriately adjusted or changed according to actual circumstances, and this does not set any particular limit to the present invention.

In the embodiment shown in fig. 2A, the barrier 110 formed by the first set of baffles 116 and the second set of baffles 118 forms a substantially S-shaped, sinuously extending carrier gas flow path in the screening device 104. Wherein the schematic flow direction of the carrier gas flow path is shown in fig. 2A with solid arrows.

Referring now to FIG. 2B, another embodiment of the screening device 104 is shown. In the embodiment shown in fig. 2B, the barrier 110 is provided in a different configuration than in fig. 2A. In particular, the barrier 110 may be a helical plate disposed in the housing 108 and extending in the height direction of the screening device 104. This allows a substantially helical, sinuously extending flow path for the carrier gas to be formed in the screening device 104. Wherein the schematic flow direction of the carrier gas flow path is shown in fig. 2B with solid arrows.

As shown in FIG. 2C, yet another embodiment of the screening device 104 is shown. In the embodiment shown in fig. 2C, the barrier 110 may include a plurality of barrier units 120. In particular, a plurality of barrier units 120 are arranged in the housing 108 and are interconnected in sequence in the height direction of the screening arrangement 104, thereby forming an integral structure as shown in fig. 2C. For each barrier unit 120, a base 122 and a transverse partition 124 may be included. Further, the base 122 may be formed with a transverse aperture for passing the aerosol mist therethrough, and a transverse partition 124 may be provided on the base 122 and interconnected with opposing sidewalls of the housing 108.

By the arrangement described above, the embodiment shown in fig. 2C forms a substantially S-shaped, meandering carrier gas flow path in the screening device 104. The schematic flow direction of the carrier gas flow path is likewise illustrated by solid arrows in fig. 2C.

Further, yet another alternative embodiment of the screening arrangement 104 is shown in the embodiment shown in fig. 2D. In the embodiment shown in fig. 2D, barrier 110 may include a plurality of first partitions 126 and a plurality of second partitions 128 disposed laterally in housing 108. Also, the first partitions 126 and the second partitions 128 may alternate in the height direction of the screening device 104.

Specifically, in the embodiment shown in FIG. 2D, the outer edge of the first baffle 126 may be spaced from the inner wall of the housing 108, thereby forming a flow path between the outer edge of the first baffle 126 and the inner wall of the housing 108; the surface of the second baffle 128 may be formed with an orifice, and the outer edge of the second baffle 128 may meet the inner wall of the housing 108 such that the orifice forms a flow path for the aerosol mist to pass through. Further, the first plurality of baffles 126 and the second plurality of baffles 128 may be connected by a connector 130 disposed along the height of the screening device 104.

By the arrangement described above, it is possible to form two substantially S-shaped, meandering carrier gas flow paths in the screening device 104 for the embodiment shown in fig. 2D. The schematic flow direction of the carrier gas flow path is likewise illustrated by solid arrows in fig. 2D.

It should be understood that figures 2A to 2D only show a few possible embodiments of the screening arrangement 104; other suitable embodiments not shown in the drawings may also be included within the scope of the invention. Also, in practice, the configuration of the screening arrangement 104 may be selected from the above described embodiments depending on the situation. The present invention is not limited to a particular embodiment or embodiments.

Referring now to fig. 1 and 3-5, an embodiment of the distribution means 106 in the nano-aerosol disinfection apparatus 100 of the present invention will be described.

Specifically, as shown in fig. 3 and 4, the distribution device 106 may include a mist distribution barrel 132, a flow distribution barrel 134, and a housing 136. The mist distributing cylinder 132, the flow distributing cylinder 134 and the housing 136 may be sleeved with each other, for example, the mist distributing cylinder 132 is sleeved in the flow distributing cylinder 134, and the flow distributing cylinder 134 is sleeved in the housing 136, so as to form an integral structure as shown in fig. 3 and 4.

In the embodiment shown in fig. 3 and 4, the mist-dividing cylinder 132 may be in communication with the screening device 104 (specifically, in communication with the outlet 114 of the screening device 104), and a plurality of first mist outlet openings 138 are provided on a side wall of the mist-dividing cylinder 132.

In addition, the flow dividing cylinder 134 may be sleeved outside the mist dividing cylinder 132, and a plurality of second mist discharge openings 140 communicating with the mixing and vaporizing region S1 are provided on a side wall of the flow dividing cylinder 134. The area between the mist distribution cylinder 132 and the mist distribution cylinder 134 forms the liquid mist chamber S2 as described above. That is, the mist chamber S2 is formed in the area between the outer wall of the mist distribution cylinder 132 and the inner wall of the flow distribution cylinder 134.

Further, the housing 136 may be sleeved outside the shunt cylinder 134, and a plurality of air inlets 142 and a plurality of liquid mist nozzles 144 are disposed on a side wall of the housing 136. Specifically, the area between the flow distribution cylinder 134 and the housing 136 forms the airflow chamber S3 as described above. That is, the airflow chamber S3 is formed in the area between the outer wall of the flow distribution cylinder 134 and the inner wall of the housing 136.

As shown in fig. 4, in this embodiment, the opening directions of the first mist discharge port 138 and the air inlet 142 are the same. The opening directions of the second mist discharge port 140 and the liquid mist spray port 144 are the same. Further, the opening directions of the second mist discharge ports 140 and the liquid mist discharge ports 144 are different from the opening directions of the first mist discharge ports 138 and the air inlet 142.

For example, in the embodiment shown in fig. 4, the opening directions of the second mist discharge port 140 and the liquid mist spray nozzles 144 are both schematically directed to the left; the opening directions of the first mist outlet 138 and the air inlet 142 are both schematically directed to the right. That is, in the embodiment shown in fig. 4, the second mist discharge openings 140 and the liquid mist discharge nozzles 144 are opened in the direction completely opposite to the opening direction of the first mist discharge openings 138 and the air inlet 142. It should be understood, however, that the opening directions therebetween are not limited to being diametrically opposed; in alternative embodiments it need only be different.

Furthermore, in the embodiment shown in fig. 3 and 4, the flow direction of the aerosol mist is schematically shown in the form of a solid arrow; while the flow direction of the gas flow is schematically shown in fig. 4 in the form of hollow arrows. The process of the mixed vaporization of the aerosol mist and the gas stream by the distribution device 106 will be described in more detail below in connection with specific operational procedures.

As shown in fig. 5, in one embodiment of the present invention, a plurality of first mist discharge ports 138 may be arranged on a side wall of the mist distributing cylinder 132 in a height direction of the mist distributing cylinder 132. Further, in order to balance the concentration of the liquid mist discharged from the mist distributing cylinder 132 through the first mist discharge port 138, the aperture or the hole pitch of the first mist discharge port 138 may be appropriately adjusted.

Specifically, in one embodiment, as shown in FIG. 5, if the aperture diameters of all of the first mist outlet openings 138 are set to be the same as each other, the aperture spacing near the junction P of the mist separating cylinder 132 and the screening device 104 is smaller than the aperture spacing far from the junction P of the mist separating cylinder 132 and the screening device 104. In other words, the mist distributing cylinder 132 has an inlet (e.g., at the position of the point P in the embodiment shown in fig. 5) connected to the sieving device 104, and the closer the inlet is, the smaller the hole spacing between the adjacent first mist outlet 138; the farther away from the inlet, the greater the hole spacing between adjacent first mist discharge openings 138.

In another embodiment, which is not shown in the figures, if the hole spacing between adjacent first outlet openings 138 of all the first outlet openings 138 is set to be the same as each other, the hole diameter of the first outlet openings 138 near the place where the mist separating cylinder 132 meets the sieving device 104 is larger than the hole diameter of the first outlet openings 138 far from the place where the mist separating cylinder 132 meets the sieving device 104. In other words, the mist distributing cylinder 132 has an inlet connected to the sieving device 104, and the aperture of the first mist outlet 138 is larger the closer to the inlet; the farther from the inlet, the smaller the pore size of the first exhaust port 138.

It should be noted here that the two cases of the first exhaust port 138 are described above as separate embodiments. It is to be understood that the present invention may be used in any form selected from those described above according to the structure of the actual application. In addition, since the position of the inlet on the mist-dividing cylinder 132, which is connected to the screening device 104, is only schematically shown in fig. 5, the arrangement of the aperture and the aperture spacing, as described above, can be adjusted accordingly depending on the specific position of the inlet. In addition, in an alternative embodiment, the first exhaust port 138 may be configured by combining the above two cases, that is, the first exhaust port 138 may have different aperture diameters and aperture pitches. Therefore, the above-described embodiments do not set any particular limit to the present invention.

Referring back to fig. 3 and 4, in one embodiment of the invention, the distribution device 106 may further include a plurality of fans 146 disposed outside the housing 136, wherein each fan 146 may be disposed corresponding to a location of one of the air inlets 142.

Referring now to fig. 6-9, there is shown an exemplary embodiment of the atomizing device 102 in the nano-aerosol disinfection apparatus 100 of the present invention. In general, the atomizer 102 may include a base 148, an atomizer head 150, and a liquid mist generating chamber 152.

Specifically, as shown in FIG. 6 in conjunction with FIG. 7, in this embodiment, the base 148 may be provided with a probe 154 for powering the components in the atomizer head 150.

Further, as shown in FIG. 6 in conjunction with FIG. 8, the atomizer head 150 can be removably mounted to the base 148. Specifically, a piezoelectric transducer 156 is provided in the atomizer head 150, and a conductive member 158 is provided at the bottom of the atomizer head 150. In use, piezoelectric transducer 156 is electrically connected (e.g., by a wire) to conductive member 158, and conductive member 158 is in electrical contact with probe 154, thereby enabling electrical energy to be passed through probe 154 and, thus, conductive member 158, which is in electrical contact with probe 154, to power piezoelectric transducer 156, which is electrically connected to conductive member 158. The piezoelectric transducer 156 is capable of ultrasonically atomizing the disinfectant to form an aerosol mist in the form of high frequency mechanical vibrations.

In the embodiment described above, since the atomizer head 150 is detachably mounted on the base 148 and the conductive member 158 of the atomizer head 150 and the probe 154 of the base 148 are electrically contacted and conducted instead of being electrically conducted, the atomizer head 150 can be quickly mounted on the base 148 and easily removed and replaced.

Further, as shown in FIG. 6 in conjunction with FIG. 9, for the liquid mist generation chamber 152, it may be mounted on the base 148 and positioned above (e.g., directly above) the atomizer head 150. In addition, a liquid inlet 160 and an air inlet 162 may be provided in the liquid mist generating chamber 152. The liquid inlet 160 is used for introducing the sterilizing liquid into the liquid mist generating chamber 152, and the gas inlet 162 is used for introducing the gas into the liquid mist generating chamber 152. The sterilizing fluid and gas are ultrasonically atomized in the mist generating chamber 152 via the piezoelectric transducer 156 to form an aerosol mist.

With continued reference back to fig. 8, in one embodiment, the atomizer head 150 may include an upper cap 164 and a lower cap 166 that are removably coupled together. Specifically, the piezoelectric transducer 156 may be encapsulated between the upper and lower covers 164 and 166, and a transducer cushion 168 may be filled between the piezoelectric transducer 156 and the upper and lower covers 164 and 166. In one embodiment, conductors 158 may be configured as copper pins disposed on the bottom of lower cover 166. It should be understood that the brass nail is only one embodiment of the conductive member 158, and any other suitable structure may be used in the present invention.

In the embodiment described above, since the piezoelectric transducer 156 is encapsulated between the upper cover 164 and the lower cover 166 and the transducer rubber pad 168 is further added, the piezoelectric transducer 156 can be isolated from the external environment, thereby providing an effective waterproof and dustproof function to the piezoelectric transducer 156.

As shown in fig. 6 in conjunction with fig. 9, in one embodiment of the present invention, the liquid mist generation chamber 152 may include a generation chamber housing 170 and a generation chamber inner tube 172 (not shown in fig. 9).

Specifically, the generation chamber housing 170 may be mounted on the base 148 as described above, and the generation chamber housing 170 may be positioned above the atomizing spray head 150. In addition, the liquid inlet 160 and the gas inlet 162 as described above may be provided on the side wall of the generation chamber housing 170. Further, a generation chamber inner tube 172 may be disposed in the generation chamber housing 170. Specifically, the top opening of the generation chamber inner tube 172 may be in communication with the screening device 104 and the bottom opening of the generation chamber inner tube 172 may be spaced from the bottom of the generation chamber housing 170, wherein the openings of the liquid inlet 160 and the air inlet 162 may be directed toward the outer wall of the generation chamber inner tube 172.

During operation, the disinfecting liquid is supplied from the liquid inlet 160 into the generation chamber housing 170 and is ultrasonically atomized by the piezoelectric transducer 156. During this process, carrier gas is introduced into the generation chamber housing 170 through the gas inlet 162. At this point, the carrier gas first encounters the outer wall of the generation chamber inner tube 172 as it enters and is redirected to flow downwardly. When the carrier gas flows downwards and meets the liquid surface of the disinfectant, the carrier gas is turned again so as to move to the central position. At this time, the carrier gas encounters the ultrasonically atomized liquid mist and is able to carry the liquid mist upward through the bottom opening of the generation chamber inner tube 172 and the top opening of the generation chamber inner tube 172 into the screening device 104 for screening.

In an alternative embodiment, as shown in fig. 6, at least a portion of the wall of the generation chamber inner tube 172 may be provided as a tapered tube wall that tapers in a direction from the top opening to the bottom opening. The conical pipe wall can effectively guide the entering carrier gas, so that the carrier gas can smoothly move downwards.

The nano-aerosol disinfection apparatus 100 provided by the present invention will be described below in conjunction with a specific use case of the present invention.

From the above description, it can be seen that the nano-aerosol disinfection apparatus 100 of the present invention can be divided into three parts, namely, the atomizing device 102, the sieving device 104 and the distribution device 106.

The atomizing device 102, which may also be referred to as a primary atomizing device, can generate an aerosol having an average particle size of, for example, about 3-5 microns. A carrier gas flow divider (i.e., a generation chamber inner tube 172) is provided within generation chamber housing 170, and generation chamber inner tube 172 may be in the form of a cylinder or a tapered cylinder. The carrier gas blown into the generation chamber housing 170 by the blower is uniformly dispersed around after being shielded by the generation chamber inner tube 172, and flows out from the bottom upwards. The function of the inner tube 172 is to uniformly carry the carrier gas of the fan into the mist generating chamber 152 and to carry the entire mist of the sterilizing liquid out of the atomizing device 102. If the indoor tube 172 is not generated, the carrier gas directly enters the liquid mist generation chamber 152, and since the carrier gas is not directly guided upward, a vortex is formed inside, the efficiency of sending the mist outward is reduced, and the entire liquid mist cannot be sent out.

In the case of the screen 104, which may also be referred to as a secondary screening refinement, the larger atomized particles may be shielded in the screen 104 by providing a barrier 110 to block and increase the length of the aerosol flow path so that only smaller particles (about 500 nm aerosol) may pass through the screen 104. This allows the sieving device 104 to obtain an aerosol with an average particle size of about 500 nm.

Further to the distribution device 106, it may also be referred to as a three-stage refining distribution device, which rapidly gasifies the aerosol by mixing the aerosol (mist) and the carrier gas to further refine the aerosol particle size to tens of nanometers to 100 nanometers, and at the same time, can realize uniform distribution of the aerosol in a wide range. That is, the liquid mist chamber S2 and the gas flow chamber S3 can uniformly distribute the aerosol and the carrier gas in the longitudinal direction, respectively, so that the final aerosol mixed with the carrier gas is uniformly ejected from the liquid mist ejection openings 144 in the longitudinal direction. Without the mist chamber S2 and the gas flow chamber S3, the carrier gas is directly mixed with the aerosol from the first mist outlet 138 of the mist-dispensing canister 132, and the aerosol from the mist outlet 144 is not uniformly distributed throughout the longitudinal extent.

Generally, in the nano-aerosol disinfection apparatus 100 of the present invention, the atomization device 102 atomizes the disinfection solution into aerosol with an average particle size of about 3-5 μm, and the screening device 104 screens out larger particles by physical separation and gravity, so as to screen out aerosol with an average particle size of about 500 nm. Finally, the distribution device 106 gasifies aerosol particles of about 500 nanometers by increasing the carrier gas, and further reduces the size of the aerosol particles to be nano-sized aerosol with the size of about 100 nanometers or less.

In this process, the amount of carrier gas is smaller in the atomizing device 102 and screening device 104 stages, while the distribution device 106 stage reloads a large flow of carrier gas for vaporization. The second purpose of the distribution means 106, in addition to further refining the aerosol particles, is to distribute the aerosol evenly. So that the human body or the surface of a large object can be sterilized. Eventually, a "wind knife" like pattern can be formed at the liquid mist nozzle 144, i.e., the ejected aerosol is a uniform mist line.

For practical application scenarios of the nano-aerosol disinfection device 100 of the present invention, in one embodiment, the nano-aerosol disinfection device 100 may be used as a "disinfection door". Specifically, after a safe air disinfectant such as slightly acidic hypochlorous acid water is filled, the body of a person who passes through the air disinfectant can be disinfected. In addition, in another embodiment, the surface disinfection of the conveyed objects can also be realized in a mode of spraying from top to bottom. In addition, in other embodiments, the nano aerosol disinfection apparatus 100 can also be directly sprayed into the air to realize air disinfection.

Because the atomized particles of the disinfectant are in a nano-scale fine state, the disinfectant can be in a suspended state in space for a long time. In addition, the equipment can generate a large amount of aerosol particles in a short time, so that a room (space) to be disinfected is quickly filled, and disinfection treatment without dead corners is realized. Because the atomized particles are small, the atomized particles can be vaporized quickly after disinfection, and the surfaces of objects such as the ground, the wall surface, the table top and the like cannot be wetted. Compared with a two-fluid (pneumatic atomization) aerosol generating device, the generating efficiency of the device is improved by more than 4 times.

Compared with the prior art, the disinfection solution can be refined into nanometer aerosol particles, and compared with micron-sized particles, the disinfection solution with the same volume can be refined into more disinfection solution droplets, so that the quantity of disinfection solution mist particles in a unit space is more, namely the concentration of the disinfection solution mist is higher, and the disinfection effect can be improved. In other words, under the same sterilization effect, the usage amount of the disinfectant or the effective content of the disinfectant can be greatly reduced, so that the cost is saved, and the safety of the disinfection process is improved. For example: