Nano-bubble production component and device with nano-bubble production component

Abstract

The utility model discloses a nano bubble production component and a device with the nano bubble production component, the nano bubble production component comprises at least one component unit, the component unit is provided with a base body extending in the axial direction, a plurality of prismatic protrusions are arranged on the side wall of the base body at intervals, the prismatic protrusions longitudinally extend in the radial outer side direction of the base body, and the prismatic protrusions extend in the radial direction of the base body. The prismatic projection has a polygonal cross section; when liquid flows through the prismatic protrusions, the edges, making contact with the liquid firstly, on the prismatic protrusions can divert the liquid and enable the diverted liquid to flow along the side faces where the edges and the adjacent edges are located, and the adjacent edges can enable the diverted liquid flowing to the positions where the adjacent edges are located to form turbulent flow. According to the application, the edges of the prismatic bulges are utilized to shear and destroy the flowing liquid to form turbulent vortexes, and the turbulent vortexes repeatedly collide with the incoming liquid flow in the flowing process and continue to be contacted and collided with the plurality of prismatic bulges, so that gas contained in the liquid is cut up and refined for multiple times and finally becomes nano bubbles.

Description

Technical Field

[0001] The utility model relates to the technical field of nano - bubble production, and particularly relates to a nano - bubble production component and a device having the same. Background Art

[0002] In recent years, tiny bubbles in liquids have attracted people's attention due to their unique functions. According to the size of the tiny bubbles in liquids, they can be divided into micro - bubbles, ultra - fine bubbles (also known as nano - bubbles), etc. In the ISO standard, ultra - fine bubbles refer to extremely fine bubbles with a bubble diameter ≤ 1μm (1 / 1000 mm) in liquids.

[0003] At present, nano - bubbles have shown their unique value in many fields. In the agricultural field, nano - bubbles help promote plant growth, and biosurfactant nano - bubbles can extract phytochemicals from camellia oil shells. In the medical field, ozone nano - bubbles are used to eliminate dental plaque, inhibit oral odor, etc. In the food industry, the application of nano - bubbles is even more extensive. It can be used to clean food processing equipment and containers, providing a cleaner production environment for food; in the food preservation link, nano - bubbles also play an important role. It can form a protective film to effectively prevent oxygen and microorganisms from invading the interior of food, thereby extending the shelf life of food; at the same time, nano - bubbles can also improve the taste and quality of food. Adding nano - bubbles to beer, milk and juice can make these beverages taste smoother and have a richer aroma. In addition, due to their tiny size and strong oxidation ability, nano - bubbles can effectively remove harmful microorganisms from stainless steel and plastic materials.

[0004] However, existing nano - bubble preparation devices still generally have problems such as complex structures, high manufacturing costs, and low preparation efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a nano - bubble production component and a device having the same, and solve the problems of complex structure, high cost, and low preparation efficiency of existing nano - bubble preparation devices.

[0006] The above purpose of the utility model can be achieved by the following technical solutions:

[0007] The utility model provides a nano - bubble production component, including at least one component unit. The component unit has an axially extending matrix. A plurality of rhombic protrusions are spaced on the side wall of the matrix. The rhombic protrusions longitudinally extend along the radially outer direction of the matrix. Along the radial direction of the matrix, the rhombic protrusions have a polygonal cross - section. When liquid flows through the rhombic protrusions, the edge of the rhombic protrusion that first contacts the liquid can divide the liquid flow, and make the divided liquid flow along the side surface where the edge and the adjacent edge are located. The adjacent edge can make the divided liquid flowing to its position form a turbulent flow.

[0008] Preferably, along the axial direction of the substrate, a plurality of the rhombic protrusions are spirally and spacedly arranged on the side wall of the substrate.

[0009] Preferably, the nano-bubble production member includes a plurality of member units, and the plurality of member units are stacked along the axial direction of the substrate.

[0010] Preferably, one end of the member unit extends outward in the axial direction to form a male connection part, and the other end of the member unit extends inward in the axial direction to form a female connection part that cooperates with the male connection part. Adjacent two of the member units form a fastening connection through the cooperating male connection part and female connection part.

[0011] Furthermore, the nano-bubble production member has a relative first top end and a first bottom end along its axial direction. The substrate of the member unit near the first bottom end extends in a direction from the first top end to the first bottom end to form a drainage part, and spiral blades for guiding liquid to flow through the rhombic protrusions are arranged on the side wall of the drainage part.

[0012] Preferably, the rhombic protrusion is a multi-sided prism or a multi-sided pyramid. When the rhombic protrusion is a multi-sided pyramid, the rhombic protrusion is connected to the side wall of the substrate through the pyramid bottom.

[0013] Another object of the present invention is to provide a nano-bubble production device, including a driving unit and the nano-bubble production member as described above, and the driving unit is connected to the nano-bubble production member through an output shaft.

[0014] Preferably, the nano-bubble production device further includes a tubular member with an opening. The tubular member is used to sleeve outside the nano-bubble production member, and a nano-bubble production annular space is formed between the tubular member and the nano-bubble production member. When the tubular member and the nano-bubble production member are coaxially arranged, the radial width of the nano-bubble production annular space does not exceed the height of the rhombic protrusion.

[0015] Specifically, the tubular member has a relative second top end and a second bottom end along its axial direction, and the opening includes an end opening provided at the second top end and / or the second bottom end.

[0016] Preferably, the opening further includes a plurality of wall openings spacedly arranged on the side wall of the tubular member.

[0017] The features and advantages of the present utility model are as follows: The nano-bubble production component provided by the present utility model utilizes the edges of the rhombic protrusions to shear and break the flowing liquid to form turbulent vortices. During the flow of the turbulent vortices, they repeatedly collide with the oncoming liquid flow and continue to contact and collide with multiple rhombic protrusions that the liquid flows through, causing the gas contained in the liquid to be chopped and refined multiple times and finally turned into nano-bubbles. It has the advantages of simple structure, low cost, and high bubble preparation efficiency. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of the integrated nano-bubble production component provided in the embodiment of the present utility model;

[0020] Figure 2 Schematic diagram of the state where the integrated nano-bubble production component provided in the embodiment of the present utility model is arranged in a pipeline for transporting liquid;

[0021] Figure 3 Schematic diagram of the state where turbulence is formed when liquid flows through the rhombic protrusions on the nano-bubble production component provided in the embodiment of the present utility model;

[0022] Figure 4 Structural schematic diagram of the component unit of the split nano-bubble production component provided in the embodiment of the present utility model;

[0023] Figure 5 Structural schematic diagram of the nano-bubble production device provided in the embodiment of the present utility model;

[0024] Figure 6 Schematic diagram of the state where the nano-bubble production device provided in the embodiment of the present utility model is arranged in a container filled with static liquid in cooperation with a tubular component.

[0025] Explanation of the reference numerals in the drawings:

[0026] 100, nano-bubble production component; 110, component unit; 111, base body; 112, rhombic protrusion; 113, male connection part; 114, female connection part; 115, through hole; 116, spiral blade;

[0027] 200, tubular component; 210, end opening; 220, wall opening;

[0028] 300, rotating shaft;

[0029] 400, drive unit; 410, output shaft;

[0030] 500, pipeline;

[0031] 600, container. Specific implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] As Figures 1 to 4 shown, the present invention provides a nano-bubble production member 100, which includes at least one member unit 110. The member unit 110 has an axially extending base body 111. A plurality of rhombic protrusions 112 are spaced apart on the side wall of the base body 111. The rhombic protrusions 112 extend longitudinally along the radially outer direction of the base body 111. In the radial direction of the base body 111, the rhombic protrusions 112 have a polygonal cross-section; when the liquid flows through the rhombic protrusions 112, the edge of the rhombic protrusion 112 that first contacts the liquid can divide the liquid flow, and make the divided liquid flow along the side surface where the edge and the adjacent edge are located. The adjacent edge can make the divided liquid flow to the position where it is located form a turbulent flow. In this way, the edge of the rhombic protrusion 112 is used to shear and break the flowing liquid to form a turbulent vortex. During the flow process of the turbulent vortex, it repeatedly collides with the incoming liquid flow, and continues to contact and collide with a plurality of rhombic protrusions 112 flowing through, so that the gas contained in the liquid is chopped and refined multiple times, and finally becomes nano-bubbles.

[0034] Specifically, as Figure 2 shown, the nano-bubble production member 100 provided by the present invention can be directly arranged in the pipeline 500 for transporting liquid; please refer to Figure 6As shown, the nano-bubble production component 100 can also be arranged in a container 600 filled with a static liquid in cooperation with a tubular component 200 having an opening. Among them, to ensure the quality and efficiency of nano-bubble production, when the nano-bubble production component 100 is arranged inside a pipeline 500 for liquid transportation, the difference between the inner diameter of the pipeline 500 and the outer diameter of the nano-bubble production component 100 needs to be controlled within the height range of two rhombic protrusions 112. That is, when the nano-bubble production component 100 and the pipeline 500 are coaxially arranged, the distance between the rhombic protrusion 112 of the nano-bubble production component 100 and the inner wall of the pipeline 500 should not exceed the height (longitudinal extension length) of the rhombic protrusion 112. Similarly, when the nano-bubble production component 100 is arranged in a container 600 filled with a static liquid in cooperation with a tubular component 200 having an opening, the difference between the inner diameter of the tubular component 200 and the outer diameter of the nano-bubble production component 100 also needs to be controlled within the height range of two rhombic protrusions 112. In this way, by restricting the flow space of the liquid in the radial direction, the outward diffusion of the liquid is prevented, the collision between the liquid and the rhombic protrusion 112 is promoted, and the quality and efficiency of nano-bubble production are ensured. Preferably, the rhombic protrusion 112 of the nano-bubble production component 100 is arranged close to the inner wall of the tubular component 200. In this embodiment, the nano-bubble production component 100 can be directly made of an integral structure (a single longitudinally extending component unit 110), or can be made by assembling a split structure (stacking and connecting multiple disc-shaped component units 110), and the present application does not limit this.

[0035] Among them, the material of the nano-bubble production component 100 can be plastic, steel, etc., and the processing methods include but are not limited to casting molding and stamping molding.

[0036] Among them, as Figure 1 and Figure 2 shown, along the circumferential direction of the base body 111, a plurality of rhombic protrusions 112 arranged at the same distance from one end of the base body 111 form a rhombic protrusion 112 group; along the axial direction of the base body 111, the plurality of rhombic protrusions 112 constituting each rhombic protrusion 112 group can be arranged at intervals and aligned on the outer wall of the base body 111, or can be arranged at intervals in a staggered manner, and the present application also does not limit this. To avoid adjacent rhombic protrusions 112 from hindering the generation of turbulent vortices and thus affecting the production efficiency of nano-bubbles, the distance between adjacent two rhombic protrusions 112 should not be too short. Preferably, the distance between adjacent two rhombic protrusion 112 groups is half of the length of the rhombic protrusion 112 along the axial direction of the base body 111, and the distance between adjacent two rhombic protrusions 112 within the rhombic protrusion 112 group is 1.5 times the length of the rhombic protrusion 112 along the circumferential direction of the base body 111, so that the liquid can contact and collide with the rhombic protrusion 112 at a certain flow rate, thereby ensuring the nano-bubble preparation efficiency. Further, the rhombic protrusion 112 is arranged at a distance where the occurrence of turbulence is not weakened.

[0037] Preferably, to improve the efficiency of nano-bubble production, a rotating shaft 300 may be provided on the nano-bubble production member 100, and the rotating shaft 300 is connected to the output shaft 410 of the driving unit 400. The driving unit 400 drives the nano-bubble production member 100 to rotate, so that the liquid flows at a high speed in a spiral shape, improving the flow performance of the liquid, accelerating the collision between the liquid and the rhombic protrusions 112, and rapidly refining the gas contained in the liquid, thereby accelerating the generation of nano-bubbles.

[0038] According to an embodiment of the present invention, the rhombic protrusion 112 is a multi-sided prism or a multi-sided pyramid. When the rhombic protrusion 112 is a multi-sided pyramid, the rhombic protrusion 112 is connected to the side wall of the base body 111 through the cone bottom. As Figures 1 to 4 shown, the rhombic protrusion 112 is preferably a quadrangular pyramid. In this way, the liquid can circulate fully between the rhombic protrusions 112, and pressure loss is not likely to occur. The liquid is easily split by the edges of the rhombic protrusions 112 to generate turbulence, which is beneficial to the generation of nano-bubbles; and under the forward rotation drive and reverse rotation drive of the driving unit 400, the nano-bubble production member 100 can achieve a better nano-bubble preparation effect; at the same time, the apex of the quadrangular pyramid can also perform better shear damage on the flowing liquid, promoting gas refinement and increasing the nano-bubble yield.

[0039] According to an embodiment of the present invention, as Figure 1 shown, along the axial direction of the base body 111, a plurality of rhombic protrusions 112 are arranged at intervals in a spiral shape on the side wall of the base body 111. By arranging a plurality of rhombic protrusions 112 on the side wall of the base body 111 in a spiral shape, the number of collisions between the liquid flow and the rhombic protrusions 112 is further increased to ensure better nano-bubble production quality and efficiency.

[0040] According to an embodiment of the present utility model, the nano-bubble production member 100 includes a plurality of member units 110, and the plurality of member units 110 are stacked along the axial direction of the base body 111. Specifically, the nano-bubble production member 100 is assembled with a split structure, and is specifically formed by stacking a plurality of member units 110 along the axial direction of the base body 111. In this way, it is convenient for separate processing of the plurality of member units 110, and the extension length of the nano-bubble production member 100 can be adjusted by controlling the number of member units 110, thereby realizing the control of the production quantity of nano-bubbles. At the same time, the nano-bubble production member 100 assembled with a split structure can be correspondingly configured with an extension length according to the use scenario, and has higher flexible applicability. Among them, as the extension length of the nano-bubble production member 100 increases, the number of collisions between the liquid flow and the rhombic protrusions 112 during the liquid flow process increases, and the number of generated nano-bubbles will also increase accordingly; as the extension length of the nano-bubble production member 100 shortens, the number of collisions between the liquid flow and the rhombic protrusions 112 during the liquid flow process decreases, and the number of generated nano-bubbles will also decrease accordingly. That is, there is a positive correlation between the production quantity of nano-bubbles and the extension length of the nano-bubble production member 100.

[0041] According to an embodiment of the present utility model, one end of the member unit 110 extends outward in the axial direction to form a male connection portion 113, and the other end of the member unit 110 extends inward in the axial direction to form a female connection portion 114 that cooperates with the male connection portion 113. Two adjacent member units 110 form a fastening connection through the cooperating male connection portion 113 and female connection portion 114. Specifically, as Figure 4 shown, a through hole 115 for passing through the rotating shaft 300 is provided at the center of the member unit 110. One end of the member unit 110 extends outward in the axial direction to form a plurality of male connection portions 113 located on the outer periphery of the through hole 115, and the other end of the member unit 110 extends inward in the axial direction to form a plurality of female connection portions 114 that cooperate with the plurality of male connection portions 113. The plurality of member units 110 are stacked and connected through the cooperating male connection portion 113 and female connection portion 114 to form the nano-bubble production member 100. Of course, the plurality of member units 110 can also be connected by various connection methods such as threaded connection, welding, and adhesive bonding to form the nano-bubble production member 100.

[0042] According to a preferred embodiment of the present utility model, with reference to Figure 1As shown, the nano-bubble production member 100 has opposite first top and first bottom ends along its axial direction. The base 111 of the member unit 110 near the first bottom end extends in the direction from the first top end to the first bottom end to form a drainage portion. A spiral blade 116 for guiding the liquid to flow through the rhombic protrusion 112 is provided on the side wall of the drainage portion. By providing the spiral blade 116 on the drainage portion, the flowing liquid swirls along a spiral path and flows perpendicular to the edge of the rhombic protrusion 112, promoting the generation of turbulent vortices. Among them, the spiral blade 116 can be continuous or discontinuous.

[0043] As Figure 5 and Figure 6 shown, another object of the present utility model is to provide a nano-bubble production device, which includes a driving unit 400 and the above-mentioned nano-bubble production member 100. The driving unit 400 is connected to the nano-bubble production member 100 through an output shaft 410. Specifically, as Figure 5 shown, a rotating shaft 300 is provided on the nano-bubble production member 100. The rotating shaft 300 is connected to the output shaft 410 of the driving unit 400 to form a nano-bubble production device. By configuring the driving unit 400 to drive the nano-bubble production member 100 to rotate, not only can the flow performance of the flowing liquid be improved, the collision between the liquid and the rhombic protrusion 112 be accelerated, thereby accelerating the generation of nano-bubbles; but also the stationary liquid can be driven to rotate at a high speed and contact and collide with the rhombic protrusion 112 to generate nano-bubbles, so that the nano-bubble production member 100 can be applied to stationary liquids, broadening the application range of the nano-bubble production member 100. Among them, the driving unit 400 is preferably a motor powered by a dry battery or a rechargeable battery, so that the nano-bubble production device takes into account miniaturization, light weight and portability.

[0044] According to an embodiment of the present utility model, as Figure 6 shown, the nano-bubble production device further includes a tubular member 200 having an opening. The tubular member 200 is used to sleeved outside the nano-bubble production member 100. A nano-bubble production annular space is formed between the tubular member 200 and the nano-bubble production member 100. When the tubular member 200 and the nano-bubble production member 100 are coaxially arranged, the radial width of the nano-bubble production annular space does not exceed the height of the rhombic protrusion 112. By configuring the tubular member 200, the flow space of the liquid in the radial direction is restricted, preventing the liquid from diffusing outwards, promoting the collision between the liquid and the rhombic protrusion 112, and ensuring the quality and efficiency of nano-bubble production.

[0045] According to an embodiment of the present utility model, the tubular member 200 has opposite second top and second bottom ends along its axial direction. The opening includes an end opening 210 provided at the second top end and / or the second bottom end. Specifically, as Figure 6As shown, the tubular member 200 is provided with end openings 210 at the second top end and / or the second bottom end, for the liquid in the container 600 to enter and exit the limited space between the tubular member 200 and the nanobubble production member 100, and contact and collide with a plurality of rhombic protrusions 112 in the limited space to generate nanobubbles. Among them, when both the second top end and the second bottom end of the tubular member 200 are provided with end openings 210, the flow direction of the flowing liquid into the tubular member 200 can be from bottom to top. The flowing liquid flows in from the end opening 210 at the second bottom end, contacts and collides with the rhombic protrusions 112, then flows out from the end opening 210 at the second top end, and flows in again from the end opening 210 at the second bottom end, realizing the upward flow cycle of the liquid in the tubular member 200; the flow direction of the flowing liquid into the tubular member 200 can also be from top to bottom. The flowing liquid flows in from the end opening 210 at the second top end, contacts and collides with the rhombic protrusions 112, then flows out from the end opening 210 at the second bottom end, and flows in again from the end opening 210 at the second top end, realizing the downward flow cycle of the liquid in the tubular member 200. Through the liquid flow cycle, the production output of nanobubbles is increased.

[0046] According to an embodiment of the present invention, the opening further includes a plurality of wall openings 220 spaced apart on the side wall of the tubular member 200. Specifically, as Figure 6 shown, a plurality of wall openings 220 spaced apart on the side wall where the same generatrix of the tubular member 200 is located form a set of wall openings 220, and multiple sets of wall openings 220 are spaced apart along the circumferential direction of the tubular member 200. By providing the wall openings 220, part of the liquid can flow into the tubular member 200 from the side wall, contact and collide with the ends of the rhombic protrusions 112 and fully collide with the turbulence generated by the liquid flowing through the rhombic protrusions 112, improving the production efficiency of nanobubbles.

[0047] In actual application, when conditions such as high liquid viscosity and high liquid pressure are not conducive to bubble generation, the production efficiency of the required nanobubbles can be improved by increasing the number of rhombic protrusions 112, increasing the size of the rhombic protrusions 112, reducing the annular space between the tubular member 200 and the nanobubble production member 100, and increasing the rotation speed of the driving unit 400. Among them, increasing the number of quadrangular pyramid protrusions can be achieved by increasing the number of stacked member units 110.

[0048] Based on the above description, the nanobubble production member 100 provided in the embodiment of the present invention has the following beneficial effects:

[0049] In the embodiment of the present utility model, the nano-bubble production member 100 uses the edge of the rhombic protrusion 112 to shear and break the flowing liquid to form a turbulent vortex. During the flow of the turbulent vortex, it repeatedly collides with the oncoming liquid flow, and continues to contact and collide with a plurality of rhombic protrusions 112 passing through, so that the gas contained in the liquid is chopped and refined multiple times and finally becomes nano-bubbles. It has the advantages of simple structure, low cost and high bubble preparation efficiency. By configuring the driving unit 400 to form a nano-bubble production device, and driving the nano-bubble production member 100 to rotate by the driving unit 400, not only can the flow performance of the flowing liquid be improved, the collision between the liquid and the rhombic protrusion 112 be accelerated, thereby accelerating the generation of nano-bubbles, but also the static liquid can be driven to rotate at a high speed and contact and collide with the rhombic protrusion 112 to generate nano-bubbles, so that the nano-bubble production member 100 can be applied to the static liquid, broadening the application range of the nano-bubble production member 100. And by configuring the tubular member 200 to limit the flow space of the liquid in the radial direction, prevent the liquid from diffusing outwards, promote the collision between the liquid and the rhombic protrusion 112, and ensure the quality and efficiency of nano-bubble production.

[0050] The above are only several embodiments of the present utility model. Those skilled in the art can make various changes or modifications to the embodiments of the present utility model without departing from the spirit and scope of the present utility model according to the content disclosed in the application documents.

Claims

1. A nano-bubble production component, characterized in that, Comprising at least one component unit, the component unit having an axially extending matrix, on the side wall of the matrix there are a plurality of diamond-shaped protrusions arranged at intervals, the diamond-shaped protrusions extending longitudinally in the radially outer direction of the matrix, in the radial direction of the matrix, the diamond-shaped protrusions having a polygonal cross-section; When liquid flows through the diamond-shaped protrusions, the edge of the diamond-shaped protrusion that first contacts the liquid can divide the liquid flow, and cause the divided liquid to flow along the side surface where this edge and the adjacent edge are located, and the adjacent edge can cause the divided liquid flowing to its position to form a turbulent flow.

2. The nano-bubble production member according to claim 1, wherein In the axial direction of the matrix, a plurality of the diamond-shaped protrusions are arranged at intervals in a spiral shape on the side wall of the matrix.

3. The nano-bubble production component according to claim 1 or 2, characterized in that, The nano-bubble production component comprises a plurality of component units, and the plurality of component units are stacked in the axial direction of the matrix.

4. The nano-bubble production component according to claim 3, characterized in that, One end of the component unit extends axially outward to form a male connection part, and the other end of the component unit extends axially inward to form a female connection part that cooperates with the male connection part, and adjacent two of the component units form a fastening connection through the cooperating male connection part and female connection part.

5. The nano-bubble production component according to claim 1, characterized in that, The nano-bubble production component has a relative first top end and a first bottom end in its axial direction, the matrix of the component unit near the first bottom end extends in the direction from the first top end to the first bottom end to form a drainage part, and on the side wall of the drainage part there are spiral blades for guiding the liquid to flow through the diamond-shaped protrusions.

6. The nano-bubble production member according to claim 1, wherein The diamond-shaped protrusions are polygonal prisms or polygonal pyramids, and when the diamond-shaped protrusions are polygonal pyramids, the diamond-shaped protrusions are connected to the side wall of the matrix through the pyramid bottom.

7. A nano-bubble production device, characterized in that, Comprising a driving unit and the nano-bubble production component according to any one of claims 1 to 6, the driving unit is connected to the nano-bubble production component through an output shaft.

8. The nano-bubble production device according to claim 7, wherein The nano-bubble production device further comprises a tubular component having an opening, the tubular component being used for sleeving outside the nano-bubble production component, a nano-bubble production annular space is formed between the tubular component and the nano-bubble production component, when the tubular component and the nano-bubble production component are coaxially arranged, the radial width of the nano-bubble production annular space does not exceed the height of the diamond-shaped protrusions.

9. The nano-bubble production device according to claim 8, wherein, The tubular component has a relative second top end and a second bottom end in its axial direction, and the opening includes an end opening provided at the second top end and / or the second bottom end.

10. The nano-bubble production device according to claim 9, characterized in that, The opening further includes a plurality of wall openings arranged at intervals on the side wall of the tubular component.

Images