A cyclone type micro-nano bubble generator and device

Abstract

The embodiment of the application discloses a cyclone type micro-nano bubble generator, which comprises a flow guide pipe and a cutting pipe connected in sequence; at least one first inlet is formed in the flow guide pipe, the first inlet is used for allowing a first medium to enter the flow guide pipe, the first medium comprises liquid and / or gas; the cutting pipe comprises a first cyclone pipe and a convex pipe, a first end of the first cyclone pipe is connected with the flow guide pipe, a second end of the first cyclone pipe is used for being connected to a first end of the convex pipe, a plurality of medium cyclones are arranged on the inner wall of the first cyclone pipe, the medium cyclones are used for stirring and cutting the first medium, and the first medium is made to rotate and advance when passing through the first cyclone pipe; a plurality of convex portions are arranged on the inner wall of the convex pipe, the convex portions are used for stirring and cutting the first medium, so that a medium mixture corresponding to the first medium is obtained, the first medium is cut and stirred by high-speed rotation for multiple times through the cutting pipe, and the super-micro-nano bubbles with smaller particle size, more quantity and higher concentration can be generated and released into the liquid at high speed.

Description

Technical Field

[0001] This application relates to the field of fluid equipment technology, and in particular to a swirling micro / nano bubble generator and device. Background Technology

[0002] Micro- and nanobubbles refer to bubbles with diameters ranging from tens of micrometers to hundreds of nanometers during their formation. These bubbles fall between micrometer bubbles and nanobubbles, possessing physical and chemical properties not found in conventional bubbles. Micro- and nanobubbles have broad application prospects in aquaculture, hydroponics, fruit and vegetable cleaning, skincare, water environment management, and wastewater treatment. Micro- and nanobubbles are typically obtained through micro- and nanobubble generation technology. However, current micro- and nanobubble generation technologies suffer from problems such as large particle size, low quantity, low concentration, and an abundance of large bubbles, making it difficult to meet application requirements for the number of nanobubbles within the micro- and nanobubble system. Summary of the Invention

[0003] In order to solve the above-mentioned problems existing in the background art, this application provides a swirling micro / nano bubble generator and device.

[0004] According to a first aspect of this application, a swirling micro / nano bubble generator is provided, comprising a guide tube and a cutting tube connected in sequence; the guide tube has at least one first inlet for a first medium to enter the guide tube, the first medium including liquid and / or gas; the cutting tube includes a first swirling tube and a protruding tube, a first end of the first swirling tube is connected to the guide tube, a second end of the first swirling tube is connected to the first end of the protruding tube, and a plurality of medium swirlers are provided on the inner wall of the first swirling tube for stirring and cutting the first medium, and causing the first medium to swirl and advance as it passes through the first swirling tube; the inner wall of the protruding tube is provided with a plurality of protrusions for stirring and cutting the first medium to obtain a medium mixture corresponding to the first medium.

[0005] According to one embodiment of this application, the guide tube includes a gas-liquid mixing pump, and the first medium includes gas and liquid.

[0006] According to one embodiment of this application, the guide tube includes a throat and a diffuser. The first end of the throat is connected to the first inlet, and the inner diameter of the throat is smaller than the inner diameter of the first inlet. The second end of the throat is connected to the first end of the diffuser, and the second end of the diffuser is connected to the first end of the first vortex tube. The inner diameter of the diffuser gradually increases from the first end of the diffuser to the second end of the diffuser.

[0007] According to one embodiment of this application, at least one second inlet is provided on the throat tube, the second inlet being used to allow a second medium to enter the throat tube, the second medium being a liquid and / or a gas; wherein, the second medium may be exactly the same as, partially the same as, or completely different from the first medium.

[0008] According to one embodiment of this application, the inlet direction of the first inlet is the same as the flow direction of the first medium; the inlet direction of the second inlet is different from the flow direction of the first medium, and the inner diameter of the second inlet is smaller than the inner diameter of the first inlet.

[0009] According to one embodiment of this application, the first inlet is connected to the throat via a second swirl tube; and / or, the first inlet is connected to the throat via a contraction tube, the contraction tube comprising one or a combination of a tapered contraction section, an arcuate contraction section, and a stepped contraction section.

[0010] According to one embodiment of this application, the diffuser tube includes one or a combination of a tapered diffuser section, an arc-shaped diffuser section, and a stepped contraction section.

[0011] According to one embodiment of this application, the medium cyclone separator includes a plurality of cyclone blades, which are arranged in a crisscross pattern; a first angle is formed between the cyclone blades and the first cyclone tube, the first angle being greater than 0° and less than or equal to 180°.

[0012] According to one embodiment of this application, the protrusion height of the protrusion is 0.1mm to 1000mm, and the protrusion is arranged at equal or unequal intervals inside the protrusion tube.

[0013] According to a second aspect of this application, a swirling micro / nano bubble generating device is also provided, the device comprising at least one swirling micro / nano bubble generator as described in any of the above-described embodiments; when there are multiple swirling micro / nano bubble generators, the swirling micro / nano bubble generators are connected in series and / or in parallel.

[0014] This application provides a swirling micro / nano bubble generator. Multiple types of first media are sequentially passed through a guide tube and a cutting tube to mix them, resulting in a corresponding media mixture. When the first media includes gas and liquid, the gas-liquid mixture passes through the guide tube and then through the first swirling tube, where it is cut to generate some micro / nano bubbles. The flow direction of the gas-liquid mixture is changed, causing it to swirl relative to the wall of the first swirling tube and enter a protruding tube. This allows the gas-liquid mixture to fully collide with the protruding tube, causing the protrusions to cut the gas-liquid mixture and micro / nano bubbles from the first swirling tube, resulting in smaller particle size and a greater number of micro / nano bubbles. These are then released at high speed into the liquid, thus obtaining a media mixture containing the required micro / nano bubbles.

[0015] It should be understood that the teachings of this application are not required to achieve all the beneficial effects described above, but rather that a specific technical solution can achieve a specific technical effect, and other embodiments of this application can also achieve beneficial effects not mentioned above. Attached Figure Description

[0016] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:

[0017] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0018] Figure 1 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the first embodiment of this application is shown;

[0019] Figure 2 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to a second embodiment of this application is shown;

[0020] Figure 3 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to a third embodiment of this application is shown;

[0021] Figure 4 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the fourth embodiment of this application is shown;

[0022] Figure 5 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the fifth embodiment of this application is shown;

[0023] Figure 6 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the sixth embodiment of this application is shown;

[0024] Figure 7 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the seventh embodiment of this application is shown;

[0025] Figure 8 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the first embodiment of this application is shown;

[0026] Figure 9 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to a second embodiment of this application is shown.

[0027] The reference numerals in the attached drawings are as follows: 1. Guide tube; 11. First inlet; 12. Gas-liquid mixing pump; 13. Throat; 14. Diffusion tube; 15. Second inlet; 16. Liquid pump; 2. Cutting tube; 21. First swirling tube; 22. Protruding tube; 23. Medium swirler; 24. Protrusion; 3. Outlet; 4. Second swirling tube. Detailed Implementation

[0028] The principles and spirit of this application will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are provided merely to enable those skilled in the art to better understand and implement this application, and are not intended to limit the scope of this application in any way. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0029] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the first embodiment of this application is shown.

[0031] See Figure 1 According to a first aspect of this application, a swirling micro / nano bubble generator is provided, comprising a guide tube 1 and a cutting tube 2 connected in sequence; the guide tube 1 has at least one first inlet 11 for allowing a first medium to enter the guide tube 1, the first medium including liquid and / or gas; the cutting tube 2 includes a first swirling tube 21 and a protruding tube 22, the first end of the first swirling tube 21 is connected to the guide tube 1, the second end of the first swirling tube 21 is connected to the first end of the protruding tube 22, a plurality of medium swirlers 23 are provided on the inner wall of the first swirling tube 21, the medium swirlers 23 are used to stir and cut the first medium, and cause the first medium to swirl and advance when passing through the first swirling tube 21; the inner wall of the protruding tube 22 is provided with a plurality of protrusions 24, the protrusions 24 are used to stir and cut the first medium to obtain a medium mixture corresponding to the first medium.

[0032] In the embodiments of this application, the first medium may comprise one or more types of liquids and / or gases. For example, the first medium through the first inlet 11 may comprise one type of liquid and one type of gas; the first medium through the first inlet 11 may also comprise two types of liquids; the first medium through the first inlet 11 may also comprise multiple types of liquids and multiple types of gases. Furthermore, different types of first media in this application may enter the guide pipe 1 through the same first inlet 11, in which case the number of first inlets 11 is one. Different types of first media in this application may also enter the guide pipe 1 through different first inlets 11, in which case the number of first inlets 11 may be multiple. Specifically, the number of first inlets 11 may be consistent with or inconsistent with the number of media types, preferably consistent.

[0033] The swirling micro / nano bubble generator of this application introduces multiple types of first media through a first inlet 11, which then pass sequentially through a guide tube 1 and a cutting tube 2. The flow of the first media within the guide tube 1 and the cutting tube 2 achieves mixing of the various types of first media, resulting in a corresponding media mixture. Specifically, depending on the type of first media, the media mixture obtained in this application can be one or more of the following: liquid-liquid mixture, solid-liquid mixture, gas-liquid mixture, and solid-liquid-gas mixture.

[0034] The micro / nano bubble generator provided in this application is particularly suitable for obtaining gas-liquid mixtures with smaller particle sizes and a greater number of micro / nano bubbles. The proportion of nanobubbles in the micro / nano bubbles generated by the micro / nano bubble generator of this application is significantly increased.

[0035] When the first medium includes both gas and liquid, the gas and liquid first enter the guide tube 1 through the first inlet 11 for preliminary mixing, obtaining a preliminary gas-liquid mixture. Then, the preliminary gas-liquid mixture passes through the first cyclone tube 21. The medium cyclone separator 23 of the first cyclone tube 21 performs secondary mixing and cutting of the preliminary gas-liquid mixture, obtaining a secondary gas-liquid mixture. A certain number of micro / nano bubbles are generated in the secondary gas-liquid mixture. The first cyclone tube 21 can also change the flow direction of the secondary gas-liquid mixture, making the secondary gas-liquid mixture... The mixture advances in a swirling motion relative to the wall of the first swirling tube 21. The secondary mixed gas-liquid mixture enters and flows through the protruding tube 22 in a swirling motion, thereby increasing the travel distance of the secondary mixed gas-liquid mixture in the first swirling tube 21 and the protruding tube 22. The secondary mixed gas-liquid mixture can fully collide with the protrusions 24 inside the protruding tube 22, so that each protrusion 24 can fully cut the secondary mixed gas-liquid mixture to obtain smaller particle size and more micro-nano bubbles, which are released into the liquid at high speed, thereby obtaining the required gas-liquid mixture.

[0036] The guide tube 1 of this application is used to guide the first medium so that the first medium enters the cutting tube 2 from the first inlet 11. The guide tube 1 of this application can be used for preliminary mixing of different liquids, preliminary mixing of liquid and gas, and preliminary mixing of gas and gas. Based on different mixing purposes and mixing methods, different designs can be used to form the guide tube 1. The guide tube 1 can be a bent tube or a straight tube. Preferably, the guide tube 1 is a straight tube. When the guide tube 1 is a straight tube, the first medium fed into the micro / nano bubble generator can enter the cutting tube 2 at the maximum delivery speed, reducing the resistance of the guide tube 1 to the first medium, and making the mixing and cutting of the gas-liquid mixture more complete.

[0037] The medium cyclone separator 23 can control the flow direction of the first medium through a specific mechanical structure, such as a guide plate of a specific shape; it can also control the flow direction of the first medium through a power unit, such as a stirring shaft with a motor. In this application, the medium cyclone separator 23 is a specific mechanical structure. There can be one or more medium cyclones 23. By setting the number of medium cyclones 23, the swirling distance and swirling speed of the first medium in the cutting tube 2 can be controlled. Specifically, the number of medium cyclones 23 in this application is determined according to the required swirling distance and swirling speed. The protruding tube 22 in this application refers to a pipe section with multiple protrusions 24 inside. The protrusion height, number of protrusions, and protrusion stroke of the protrusions 24 are determined according to the actual situation, and are not limited in this application. Understandably, the gas-liquid mixture after being cut by the protruding tube 22 can be directly discharged from the vortex-type micro-nano bubble generator through the outlet 3 for application. Alternatively, the gas-liquid mixture can be cut again through subsequent operations to obtain smaller particle size and a greater number of micro-nano bubbles, which are then released into the liquid at high speed, thereby further improving the quality of the micro-nano bubbles in the gas-liquid mixture.

[0038] Figure 2 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to a second embodiment of this application is shown.

[0039] See Figure 2 According to one embodiment of this application, the guide pipe 1 includes a gas-liquid mixing pump 12, and the first medium includes gas and liquid.

[0040] In one implementation scenario, the guide pipe 1 is a common circular straight pipe, and a gas-liquid mixing pump 12 is connected to the first inlet 11. When the gas-liquid mixing pump 12 is working, the gas and liquid are mixed and input into the first inlet 11 to achieve initial mixing of the gas and liquid. The impeller of the gas-liquid mixing pump 12 can cut the gas and liquid to form a large number of ultra-micro nano bubbles. Then, the gas and liquid are cut by a second swirling cut through the first swirling pipe 21, and then cut by a higher speed swirling and stirring cut through the protruding pipe 22, generating ultra-micro nano bubbles with smaller particle size, greater quantity, and higher concentration, further improving the bubble quality of micro-nano bubbles and increasing the proportion of nano bubbles in micro-nano bubbles.

[0041] Figure 3 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to a third embodiment of this application is shown.

[0042] See Figure 3 According to one embodiment of this application, the guide tube 1 includes a throat 13 and a diffuser 14. The first end of the throat 13 is connected to the first inlet 11, and the inner diameter of the throat 13 is smaller than the inner diameter of the first inlet 11. The second end of the throat 13 is connected to the first end of the diffuser 14, and the second end of the diffuser 14 is connected to the first end of the first vortex tube 21. The inner diameter of the diffuser 14 gradually increases from the first end of the diffuser 14 to the second end of the diffuser 14.

[0043] This application can also design the structure of the guide pipe 1 to further cut the liquid and gas. For example, the guide pipe 1 may include a first inlet 11, a throat 13, and a diffuser 14. The first inlet 11 can be a straight circular pipe with the same inner diameter, or it can be a converging pipe with a uniformly reduced inner diameter. The throat 13 is connected to the end of the first inlet 11 away from the water pump, and the inner diameter of the throat 13 is smaller than the inner diameter of the first inlet 11. Specifically, in this application, the throat 13 can also be a straight circular pipe with the same inner diameter. The pipe between the throat 13 and the first inlet 11 can form a gradual transition in inner diameter through a transition pipe, or it can be directly connected to the first inlet 11 to form a gradient transition in inner diameter. When the transition pipe gradually transitions between the first inlet 11 and the throat 13, the transition pipe can be one or more of the following: arc-shaped contraction, conical contraction, multi-segment zigzag contraction, wavy contraction, stepped contraction, multi-segment arc contraction, etc. The specific contraction angle and shape of the transition pipe are not limited. Furthermore, the end of the transition pipe can be a zigzag transition with the throat 13, or it can be an arc transition. The throat 13 of this application can also be a constricting tube with a uniformly reduced inner diameter.

[0044] According to one embodiment of this application, the diffuser 14 includes one or a combination of a conical diffuser section, an arc-shaped diffuser section, and a stepped contraction section.

[0045] The diffuser 14 is a straight pipe with an inner diameter larger than that of the throat 13, or a pipe with a gradually expanding inner diameter. When the diffuser 14 is a pipe with a gradually increasing inner diameter, the inner diameter expansion method of the diffuser 14 can be one or more of the following expansion methods: conical expansion, arc expansion, multi-segment zigzag expansion, wave expansion, step expansion, multi-segment arc expansion, etc. The specific expansion angle and expansion shape of the diffuser 14 are not limited.

[0046] The length between the first inlet 11, the throat 13, and the diffuser 14 can be adjusted according to the parameters of the liquid and the gas. The parameters of the liquid include, but are not limited to, the viscosity and temperature of the liquid. The parameters of the gas include, but are not limited to, the solubility of the gas in the corresponding liquid and the temperature. The liquid and gas are compressed and released through the throat 13, generating negative pressure and forming turbulence for mixing and cutting the gas and liquid. Combined with the gas-liquid mixing pump 12, this results in a gas-liquid mixture containing smaller, more numerous, and more concentrated ultramicro-nano bubbles.

[0047] Figure 4 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the fourth embodiment of this application is shown. Figure 5 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the fifth embodiment of this application is shown.

[0048] See Figure 4 and Figure 5 According to one embodiment of this application, at least one second inlet 15 is provided on the throat 13. The second inlet 15 is used to allow a second medium to enter the throat 13. The second medium is a liquid and / or a gas. The second medium may be exactly the same as, partially the same as, or completely different from the first medium.

[0049] In another implementation scenario, the pump connected to the first inlet 11 is a liquid pump 16, such as a submersible pump, centrifugal pump, self-priming pump, or any other liquid pump 16 capable of providing power, used to pump liquid into the first inlet 11. Alternatively, the pump connected to the first inlet 11 can be an air pump, used to pump gas into the first inlet 11. In this case, a second inlet 15 can be opened on the throat 13 to draw in liquid and / or gas, typically gas, through the negative pressure generated when liquid and / or gas enter the throat 13, to achieve mixing and cutting of liquid and gas to form micro-nano bubbles. Furthermore, the second inlet 15 can be opened in the front half or middle of the throat 13. Further, to increase the flow rate and velocity of the second medium from the second inlet 15, this application can connect a pump corresponding to the second medium to the second inlet 15 to provide power for the second medium to enter the throat 13. For example, if the second medium is gas, an air pump can be connected to the second inlet 15.

[0050] According to one embodiment of this application, the inlet direction of the first inlet 11 is the same as the flow direction of the first medium; the inlet direction of the second inlet 15 is different from the flow direction of the first medium, and the inner diameter of the second inlet 15 is smaller than the inner diameter of the first inlet 11.

[0051] In one scenario, the first inlet 11 flows in the same direction as the liquid, i.e., the first inlet 11 is a straight pipe. This reduces the kinetic energy loss of the liquid within the first inlet 11. The inner diameter of the second inlet 15 is smaller than that of the first inlet 11, ensuring sufficient negative pressure in the throat 13 to meet the requirements of air intake volume and rate, allowing for thorough mixing of the liquid and gas. The air intake direction of the second inlet 15 can form an angle with the liquid intake direction of the first inlet 11. Furthermore, the air intake direction of the second inlet 15 can form a right angle or an acute angle with the liquid intake direction of the first inlet 11, further enhancing the thorough mixing of the gas and liquid. In other scenarios, the inner diameter of the second inlet 15 can be greater than or equal to the inner diameter of the first inlet 11.

[0052] Figure 6 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the sixth embodiment of this application is shown;

[0053] See Figure 6 According to one embodiment of this application, the first inlet 11 is connected to the throat 13 via the second swirl tube 4; and / or, the first inlet 11 is connected to the throat 13 via a contraction tube, the contraction tube including one or a combination of a tapered contraction section, an arc-shaped contraction section, and a stepped contraction section.

[0054] In another implementation scenario, the guide tube 1 may also include a second vortex tube 4, which may have the same or different structure as the first vortex tube 21. The second vortex tube 4 connects the first inlet 11 and the throat 13, which can further cut and mix the liquid and gas, resulting in ultra-micro nanobubbles with smaller particle size, greater number, and higher concentration.

[0055] According to one embodiment of this application, the medium cyclone separator 23 includes a plurality of cyclone blades, which are arranged in a crisscross pattern; a first angle is formed between the cyclone blades and the first cyclone tube 21, the first angle being greater than 0° and less than or equal to 180°.

[0056] The media cyclone separator 23 includes multiple cross-arranged cyclone blades. Adjacent blades can form the same or different included angles, allowing the gas-liquid mixture passing through the blades to be cut by the blades, generating a large number of ultra-micro nanobubbles. Under the guidance of the blades, the mixture can advance at high speed through rotation. This high-speed rotation of the gas-liquid mixture increases its flow velocity and the number of times it comes into contact with the subsequent protruding tube 22, resulting in stirring and cutting, thus significantly improving the generation efficiency of ultra-micro nanobubbles. The media cyclone separator 23 can also be implemented in various other ways, such as a spiral flow device or any other structure that can rotate the liquid, effectively swirling the water flow path.

[0057] According to one embodiment of this application, the protrusion height of the protrusion 24 is 0.1 mm to 1000 mm, and the protrusions 24 are arranged at equal or unequal intervals within the protrusion tube 22. The protrusions 24 in this application can be one of the following: arc-shaped protrusions, columnar protrusions, leaf-shaped protrusions, cross-shaped protrusions, plum blossom-shaped protrusions, polygonal columnar protrusions, polygonal conical protrusions, or a combination of multiple protrusions. Furthermore, the multiple protrusions 24 can be arranged in a forward spiral along the direction of medium flow within the protrusion tube 22, or in a reverse spiral in the direction of medium flow within the protrusion tube 22. They can also be arranged in one or more of the following ways: double spiral arrangement, equal interval arrangement, unequal interval arrangement, gradually increasing protrusion density, or gradually decreasing protrusion density.

[0058] Figure 7 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the seventh embodiment of this application is shown.

[0059] See Figure 7 It is understandable that the gas-liquid mixture after being cut by the protruding tube 22 can be directly discharged from the vortex micro-nano bubble generator through the outlet 3 for application. Alternatively, the gas-liquid mixture can be cut again by connecting a number of cutting tubes 2 as needed to obtain smaller particle size and more micro-nano bubbles, which are then released into the liquid at high speed, thereby further improving the quality of the micro-nano bubbles in the gas-liquid mixture.

[0060] Figure 8 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to the first embodiment of this application is shown; Figure 9 A cross-sectional schematic diagram of a swirling micro / nano bubble generator according to a second embodiment of this application is shown.

[0061] See Figure 8 and Figure 9According to a second aspect of this application, a swirling micro / nano bubble generating device is also provided. The device includes at least one swirling micro / nano bubble generator as described in any of the above-described embodiments. When there are multiple swirling micro / nano bubble generators, the swirling micro / nano bubble generators are connected in series and / or in parallel.

[0062] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0063] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0064] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0065] In addition, each functional unit in the various embodiments of this application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0066] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A swirling micro / nano bubble generator, characterized in that, Includes a guide tube and a cutting tube connected in sequence; The guide tube is provided with at least one first inlet, which is used to allow a first medium to enter the guide tube, and the first medium includes liquid and / or gas. The cutting tube includes a first cyclone tube and a protruding tube. The first end of the first cyclone tube is connected to the guide tube, and the second end of the first cyclone tube is used to connect to the first end of the protruding tube. A plurality of medium cyclones are provided on the inner wall of the first cyclone tube. The medium cyclones are used to stir and cut the first medium and to make the first medium swirl and advance when passing through the first cyclone tube. The medium cyclones include a plurality of swirling blades, which are arranged in a crisscross pattern. The inner wall of the protruding tube is provided with a plurality of protrusions, which are used to stir and cut the first medium to obtain a medium mixture corresponding to the first medium. The guide tube includes a throat and a diffuser. The first end of the throat is connected to the first inlet, and the inner diameter of the throat is smaller than the inner diameter of the first inlet. The second end of the throat is connected to the first end of the diffuser, and the second end of the diffuser is connected to the first end of the first vortex tube. The inner diameter of the diffuser gradually increases from the first end of the diffuser to the second end of the diffuser. At least one second inlet is provided on the throat tube, the second inlet being used to allow a second medium to enter the throat tube, the second medium being a liquid and / or a gas. The second medium may be exactly the same as, partially the same as, or completely different from the first medium.

2. The swirling micro / nano bubble generator according to claim 1, characterized in that, The guide tube includes a gas-liquid mixing pump, and the first medium includes gas and liquid.

3. The swirling micro / nano bubble generator according to claim 1, characterized in that, The inlet direction of the first inlet is the same as the flow direction of the first medium; the inlet direction of the second inlet is different from the flow direction of the first medium, and the inner diameter of the second inlet is smaller than the inner diameter of the first inlet.

4. The swirling micro / nano bubble generator according to claim 1, characterized in that, The first inlet is connected to the throat via a second swirl tube; And / or, The first inlet is connected to the throat via a constriction tube, which includes one or a combination of a tapered constriction section, an arc-shaped constriction section, and a stepped constriction section.

5. The swirling micro / nano bubble generator according to claim 1, characterized in that, The diffuser tube includes one or a combination of a tapered diffuser section, an arc-shaped diffuser section, and a stepped contraction section.

6. The swirling micro / nano bubble generator according to claim 1, characterized in that, The swirl blades and the first swirl tube form a first angle, which is greater than 0° and less than or equal to 180°.

7. The swirling micro / nano bubble generator according to claim 1, characterized in that, The protrusion height of the protrusion is 0.1mm to 1000mm, and the protrusions are arranged at equal or unequal intervals inside the protrusion tube.

8. A swirling micro / nano bubble generator, characterized in that, The device includes at least one swirling micro / nano bubble generator as described in any one of claims 1 to 7; when there are multiple swirling micro / nano bubble generators, the swirling micro / nano bubble generators are connected in series and / or in parallel.

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