Hydraulic cutting type and cavitation superimposed micro-nano bubble generating device

Abstract

This invention proposes a hydraulic cutting and cavitation superimposed micro / nano bubble generator, belonging to the field of micro / nano bubble generation technology. It includes a bubble generating cylinder with a detachable cavitation seat slidably connected to its inner wall. The inner wall of the detachable cavitation seat has cavitation channels. A detachable swirl seat is slidably connected to the inner wall of the bubble generating cylinder, and the inner wall of the detachable swirl seat has swirl chambers. This hydraulic cutting and cavitation superimposed micro / nano bubble generator, through the setting of the cutting mechanism, employs a gradient configuration of four-impeller, six-impeller, and eight-impeller blades to construct a progressively enhanced shearing system. Through staged crushing, the bubbles are gradually refined under the precise shearing of each impeller stage, not only stabilizing the bubble particle size within the ideal range of 10μm-100nm, but also significantly reducing the standard deviation of the particle size distribution, greatly improving the uniformity and interfacial activity of the bubbles.

Description

Technical Field

[0001] This invention relates to the field of micro-nano bubble generation technology, specifically to a micro-nano bubble generation device that combines hydraulic cutting and cavitation. Background Technology

[0002] The micro-nano bubble generator is a core device that efficiently disperses gas into micro-nano bubbles with a particle size of 10μm-100nm. Its core function is to enhance gas-liquid interaction, which not only efficiently increases dissolved oxygen in water but also degrades pollutants through hydroxyl radicals generated when bubbles burst. It has multiple functions, including oxygenation, purification, and cleaning. Its applications are extremely wide-ranging: in environmental remediation, it is used for the remediation of black and odorous water bodies and the treatment of industrial wastewater, rapidly improving water quality; in aquaculture, it continuously oxygenates water bodies to ensure the survival of farmed organisms; in precision cleaning, it can penetrate deep into the crevices of devices to remove stains, reducing the use of chemical agents; in medical aesthetics, it helps active ingredients penetrate; and in agriculture, it promotes crop growth and removes pesticide residues, making it a key device for improving quality and efficiency in many industries.

[0003] Traditional single-stage rotary shearing devices suffer from limited shear force, making it difficult to efficiently break up bubbles. This results in a wide distribution of bubble size, making it impossible to stably control the bubble size within the micro-nano range. This not only reduces the specific surface area and interfacial activity of the bubbles but also severely impacts the processing efficiency of subsequent processes. Furthermore, bubbles are easily clogged by impurities in the fluid during ejection, leading to uneven bubble distribution and difficulty in uniformly diffusing to the target area. This weakens the contact effect between the bubbles and the medium and increases the frequency and cost of equipment maintenance. Therefore, we propose a micro-nano bubble generator that combines hydraulic cutting and cavitation to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and propose a micro-nano bubble generator that combines hydraulic cutting and cavitation. This device solves the problems of insufficient shearing force and easy clogging by impurities in traditional single-stage rotary cutting devices.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a micro / nano bubble generator combining hydraulic cutting and cavitation, comprising a bubble generating cylinder, a detachable cavitation seat slidably connected to the inner wall of the bubble generating cylinder, a cavitation flow channel formed in the inner wall of the detachable cavitation seat, a detachable swirl seat slidably connected to the inner wall of the bubble generating cylinder, a swirl cavity formed in the inner wall of the detachable swirl seat, and two symmetrical first positioning strips fixed to the inner wall of the bubble generating cylinder, wherein both the detachable cavitation seat and the detachable swirl seat are slidably connected to the first positioning strips;

[0006] The bubble generator is equipped with a cutting mechanism inside. The cutting mechanism includes a sealing plate. Three L-shaped positioning blocks arranged in a circle are fixed on the outer surface of the sealing plate. A rotating rod is rotatably connected to the inner wall of the sealing plate. Three cutting impellers are fixed on the outer surface of the rotating rod.

[0007] A discharge mechanism is provided below the bubble generating cylinder. The discharge mechanism includes a discharge pipe fixed to the outer surface of the bubble generating cylinder. An internal threaded cap is threaded to the outer surface of the discharge pipe. A microporous membrane is fixed to the inner wall of the internal threaded cap.

[0008] The bubble generator is provided with a feeding mechanism on its exterior. The feeding mechanism includes a feeding pipe fixed to the outer surface of the bubble generator. A detachable seat is slidably connected to the inner wall of the feeding pipe. A filter screen is fixed to the inner wall of the detachable seat.

[0009] Furthermore, a U-shaped support frame is fixed to the outer surface of the sealing plate, the rotating rod passes through the U-shaped support frame and is rotatably connected to the U-shaped support frame, and an installation ring is fixed to the outer surface of the U-shaped support frame, the installation ring being adapted to the detachable swirl seat.

[0010] By adopting the above technical solution, after the sealing plate is installed, the mounting ring can be pressed tightly against the detachable swirl seat, preventing the detachable cavitation seat and the detachable swirl seat from moving. The U-shaped support frame provides auxiliary support for the rotation of the rotating rod.

[0011] Furthermore, a servo motor is fixed to the outer surface of the sealing plate, and the end of the rotating rod near the servo motor is fixed to the output shaft end of the servo motor. A protective cover is installed on the outer surface of the sealing plate, and the protective cover is compatible with the servo motor.

[0012] By adopting the above technical solution, the servo motor provides power for the rotation of the rotating rod, the protective cover protects the servo motor, and does not affect the heat dissipation of the servo motor.

[0013] Furthermore, a U-shaped fixing frame is fixed to the inner wall of the microporous membrane, and a follower impeller is rotatably connected to the inner wall of the U-shaped fixing frame. A cleaning brush is fixed to the bottom surface of the follower impeller, and the cleaning brush is adapted to the microporous membrane.

[0014] By adopting the above technical solution, micro-nano bubbles are discharged from the discharge pipe, and the water flow drives the follower impeller to rotate, causing the cleaning brush to rotate and clean the microporous membrane.

[0015] Furthermore, the inner wall of the feed tube is fixed with two symmetrical second positioning strips, both of which are slidably connected to the detachable seat.

[0016] By adopting the above technical solution, the second positioning strip plays a positioning role in the installation of the detachable seat.

[0017] Furthermore, an installation mechanism is provided on the outside of the bubble generating cylinder. The installation mechanism includes a rotating ring rotatably connected to the outer surface of the bubble generating cylinder and three positioning frames fixed to the outer surface of the bubble generating cylinder. Three arc-shaped sliding frames arranged in a circle are fixed on the outer surface of the rotating ring. The positioning frames are adapted to L-shaped positioning blocks. Guide plates are fixed on the outer surfaces of the three positioning frames. L-shaped mounting blocks are slidably connected to the outer surfaces of the three guide plates. The L-shaped mounting blocks are adapted to L-shaped positioning blocks. L-shaped wedge blocks are fixed on the outer surfaces of the three L-shaped mounting blocks. The three L-shaped wedge blocks are slidably connected to the inner walls of the three arc-shaped sliding frames.

[0018] By adopting the above technical solution, when the rotating ring rotates, the arc-shaped sliding frame rotates along with it, and pushes the L-shaped wedge block and the L-shaped mounting block to move. The L-shaped mounting block will squeeze the L-shaped positioning block, so that the three L-shaped positioning blocks and the sealing plate move synchronously. The sealing plate is sealed and installed on the surface of the bubble generating cylinder.

[0019] Furthermore, the installation mechanism also includes a fixed seat fixed to the outer surface of the bubble generating cylinder, an arc-shaped rack fixed to the outer surface of the rotating ring, a rotating shaft rotatably connected to the inner wall of the fixed seat, a gear fixed to the outer surface of the rotating shaft, the gear meshing with the arc-shaped rack, and a fastening bolt threaded to the inner wall of the fixed seat, the fastening bolt being adapted to the gear.

[0020] By adopting the above technical solution, a handle is provided on the rotating shaft to facilitate the rotation of the rotating shaft and gear. After the sealing plate is installed, tighten the fastening bolts to fix the gear and prevent the gear and the arc rack from rotating without human intervention.

[0021] Furthermore, the mounting mechanism also includes two anti-detachment rings fixed to the outer surface of the bubble generating cylinder, both of which are adapted to the rotating ring.

[0022] By adopting the above technical solution, the anti-detachment ring guides the rotation of the rotating ring.

[0023] Furthermore, the mounting mechanism also includes two arc-shaped covers mounted on the outer surface of the bubble generating cylinder, both of which are adapted to the bubble generating cylinder.

[0024] By adopting the above technical solution, the two arc-shaped covers can be installed by bolt connection, and the arc-shaped covers play a protective role for the internal parts.

[0025] Compared with existing technologies, this water-cutting and cavitation-superimposed micro / nano bubble generator has the following advantages:

[0026] I. This invention, through the setting of the cutting mechanism, adopts a gradient configuration of four-impeller, six-impeller, and eight-impeller multi-stage cutting impellers to construct a progressively enhanced shearing system. Through staged crushing, the bubbles are gradually refined under the precise shearing of each impeller stage. This not only stably controls the bubble particle size within the ideal range of 10μm-100nm, but also significantly reduces the standard deviation of particle size distribution, greatly improving the uniformity of bubbles and interfacial activity.

[0027] Second, through the design of the discharge mechanism, the microporous membrane, with its uniform pore size and corrosion resistance, can precisely constrain the bubble particle size, ensuring uniform bubble output. The follow-up impeller and cleaning brush are rotated by fluid power, which promptly cleans impurities on the surface of the microporous membrane. This not only ensures the uniformity of bubble spraying and allows the bubbles to fully cover the target area, but also reduces the frequency of equipment maintenance.

[0028] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a schematic diagram showing the disassembled structure of the protective cover and the arc-shaped cover of the present invention;

[0031] Figure 3 This is a three-dimensional structural diagram of the discharge pipe and feed pipe of the present invention;

[0032] Figure 4 This is a three-dimensional structural diagram of the bubble generating cylinder and sealing plate of the present invention;

[0033] Figure 5 This is a schematic diagram showing the disassembled structure of the rotating ring and the anti-detachment ring of the present invention;

[0034] Figure 6 This is a schematic diagram of the internal structure of the bubble generator of the present invention;

[0035] Figure 7 This is a schematic diagram showing the disassembled structure of the detachable cavitation seat, detachable swirl seat, and sealing plate of the present invention.

[0036] Figure 8 This is a schematic diagram of the internal structure of the detachable cavitation seat of the present invention;

[0037] Figure 9 This is a schematic diagram of the internal structure of the detachable swirl seat of the present invention;

[0038] Figure 10This is a schematic diagram showing the disassembled structure of the discharge pipe, internal threaded cover, and U-shaped fixing frame of the present invention;

[0039] Figure 11 This is a schematic diagram of the internal structure of the feed pipe of the present invention.

[0040] In the picture: 1. Bubble generator; 11. First positioning strip; 2. Cutting mechanism; 21. Sealing plate; 22. Rotating rod; 23. Cutting impeller; 24. Mounting ring; 25. U-shaped support frame; 26. Servo motor; 27. Protective cover; 28. L-shaped positioning block; 3. Discharge mechanism; 31. Discharge pipe; 32. Internal threaded cover; 33. Microporous membrane; 34. U-shaped fixing frame; 35. Follow-up impeller; 36. Cleaning brush; 4. Feeding mechanism; 41. Feeding pipe; 42. Detachable seat; 43. Filter screen; 44. Second positioning bar; 5. Mounting mechanism; 51. Rotating ring; 52. Arc-shaped sliding frame; 53. Positioning frame; 54. L-shaped mounting block; 55. L-shaped wedge block; 56. Guide plate; 57. Arc-shaped rack; 58. Fixed seat; 59. Rotating shaft; 510. Gear; 511. Fastening bolt; 512. Arc-shaped cover; 513. Anti-detachment ring; 6. Detachable cavitation base; 61. Cavitation flow channel; 7. Detachable swirl seat; 71. Swirl chamber. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figures 1 to 11The present invention provides the following implementation scheme: a micro-nano bubble generating device with hydraulic cutting and cavitation superposition, including a bubble generating cylinder 1, a detachable cavitation seat 6 slidably connected to the inner wall of the bubble generating cylinder 1, a cavitation flow channel 61 opened on the inner wall of the detachable cavitation seat 6, the cavitation flow channel 61 is arranged in a "gradual contraction-sudden expansion" configuration, the gas-liquid mixed fluid is first accelerated through the gradual contraction section, and a pressure drop is formed in the sudden expansion section to trigger cavitation, inducing the generation and further breaking of cavitation bubbles, the inner wall of the bubble generating cylinder 1 is slidably connected to a detachable swirl seat 7, the inner wall of the detachable swirl seat 7 is arranged in a swirl cavity 71, the swirl cavity 71 is arranged in a spiral shape, the gas-liquid mixed fluid is further broken by high-speed swirl, so as to improve the bubble generation efficiency, and two symmetrical first positioning strips 11 are fixed on the inner wall of the bubble generating cylinder 1, the detachable cavitation seat 6 and the detachable swirl seat 7 are both slidably connected to the first positioning strips 11, the first positioning strips 11 play a positioning role for the installation of the detachable cavitation seat 6 and the detachable swirl seat 7.

[0043] Please refer to this carefully. Figure 2 , Figure 6 and Figure 7 The bubble generating cylinder 1 is equipped with a cutting mechanism 2. The cutting mechanism 2 includes a sealing plate 21. Three L-shaped positioning blocks 28 arranged in a circle are fixed on the outer surface of the sealing plate 21. A rotating rod 22 is rotatably connected to the inner wall of the sealing plate 21. Three cutting impellers 23 are fixed on the outer surface of the rotating rod 22. The three cutting impellers 23 are arranged with four impellers, six impellers, and eight impellers respectively from the direction near the detachable swirl seat 7 to the direction away from the detachable swirl seat 7. The bubble is gradually refined through staged crushing, which improves the shearing efficiency and stabilizes the bubble particle size within the range of 10μm-100nm, thereby reducing the standard deviation of the particle size distribution.

[0044] Please refer to this carefully. Figure 6 and Figure 7 A U-shaped support frame 25 is fixed to the outer surface of the sealing plate 21. The rotating rod 22 passes through the U-shaped support frame 25 and is rotatably connected to the U-shaped support frame 25. An installation ring 24 is fixed to the outer surface of the U-shaped support frame 25. The installation ring 24 is adapted to the detachable swirl seat 7. After the sealing plate 21 is installed, the installation ring 24 can press against the detachable swirl seat 7 to prevent the detachable cavitation seat 6 and the detachable swirl seat 7 from moving. The U-shaped support frame 25 plays an auxiliary support role for the rotation of the rotating rod 22.

[0045] Please refer to this carefully. Figure 2 and Figure 6A servo motor 26 is fixed to the outer surface of the sealing plate 21. The end of the rotating rod 22 near the servo motor 26 is fixed to the output shaft end of the servo motor 26. A protective cover 27 is installed on the outer surface of the sealing plate 21. The protective cover 27 is adapted to the servo motor 26. The servo motor 26 provides power for the rotation of the rotating rod 22. The protective cover 27 protects the servo motor 26 and does not affect the heat dissipation of the servo motor 26.

[0046] Please refer to this carefully. Figure 10 Below the bubble generating cylinder 1, there is a discharge mechanism 3. The discharge mechanism 3 includes a discharge pipe 31 fixed to the outer surface of the bubble generating cylinder 1. The outer surface of the discharge pipe 31 is threaded with an inner threaded cover 32. The inner wall of the inner threaded cover 32 is fixed with a microporous membrane 33. The inner wall of the microporous membrane 33 is fixed with a U-shaped fixing frame 34. The inner wall of the U-shaped fixing frame 34 is rotatably connected with a follower impeller 35. The bottom surface of the follower impeller 35 is fixed with a cleaning brush 36. The cleaning brush 36 is adapted to the microporous membrane 33. Micro-nano bubbles are discharged from the discharge pipe 31, and the water flow drives the follower impeller 35 to rotate, causing the cleaning brush 36 to rotate and clean the microporous membrane 33.

[0047] Please refer to this carefully. Figure 11 The bubble generator 1 is provided with a feeding mechanism 4 on its outside. The feeding mechanism 4 includes a feeding pipe 41 fixed to the outer surface of the bubble generator 1. A detachable seat 42 is slidably connected to the inner wall of the feeding pipe 41. A filter screen 43 is fixed to the inner wall of the detachable seat 42. Two symmetrical second positioning strips 44 are fixed to the inner wall of the feeding pipe 41. Both second positioning strips 44 are slidably connected to the detachable seat 42. The second positioning strips 44 play a positioning role for the installation of the detachable seat 42.

[0048] Please refer to this carefully. Figure 2 , Figure 4 and Figure 5 An installation mechanism 5 is provided on the outside of the bubble generator 1. The installation mechanism 5 includes a rotating ring 51 rotatably connected to the outer surface of the bubble generator 1 and three positioning frames 53 fixed to the outer surface of the bubble generator 1. Three arc-shaped sliding frames 52 arranged in a circle are fixed to the outer surface of the rotating ring 51. The positioning frames 53 are adapted to L-shaped positioning blocks 28. Guide plates 56 are fixed to the outer surface of each of the three positioning frames 53. L-shaped mounting blocks 54 are slidably connected to the outer surface of each of the three guide plates 56. 4. Adapted to L-shaped positioning block 28, L-shaped wedge blocks 55 are fixed on the outer surface of the three L-shaped mounting blocks 54. The three L-shaped wedge blocks 55 are slidably connected to the inner wall of the three arc-shaped sliding frames 52 respectively. When the rotating ring 51 rotates, the arc-shaped sliding frame 52 rotates accordingly and pushes the L-shaped wedge blocks 55 and L-shaped mounting blocks 54 to move. The L-shaped mounting blocks 54 will squeeze the L-shaped positioning block 28, so that the three L-shaped positioning blocks 28 and the sealing plate 21 move synchronously. The sealing plate 21 is sealed and installed on the surface of the bubble generating cylinder 1.

[0049] Please refer to this carefully. Figure 4 and Figure 5 The installation mechanism 5 also includes a fixed seat 58 fixed to the outer surface of the bubble generating cylinder 1. An arc-shaped rack 57 is fixed to the outer surface of the rotating ring 51. A rotating shaft 59 is rotatably connected to the inner wall of the fixed seat 58. A gear 510 is fixed to the outer surface of the rotating shaft 59. The gear 510 meshes with the arc-shaped rack 57. A fastening bolt 511 is threaded to the inner wall of the fixed seat 58. The fastening bolt 511 is adapted to the gear 510. A handle is provided on the rotating shaft 59 to facilitate the rotation of the rotating shaft 59 and the gear 510. After the sealing plate 21 is installed, the fastening bolt 511 is tightened to fix the gear 510 and prevent the gear 510 and the arc-shaped rack 57 from being rotated without human intervention.

[0050] Please refer to this carefully. Figure 5 The installation mechanism 5 also includes two anti-detachment rings 513 fixed on the outer surface of the bubble generating cylinder 1. Both anti-detachment rings 513 are adapted to the rotating ring 51, and the anti-detachment rings 513 play a guiding role in the rotation of the rotating ring 51.

[0051] Please refer to this carefully. Figure 2 The mounting mechanism 5 also includes two arc-shaped covers 512 mounted on the outer surface of the bubble generating cylinder 1. Both arc-shaped covers 512 are adapted to the bubble generating cylinder 1. The two arc-shaped covers 512 can be installed by bolt connection. The arc-shaped covers 512 play a protective role for the internal parts.

[0052] Working principle: First, the gas-liquid mixture enters through the feed pipe 41 and undergoes pre-filtration using the built-in filter screen 43, intercepting large particulate impurities to provide clean raw materials for subsequent stages. Then, the clean gas-liquid mixture enters the bubble generator 1. Supported by the first positioning strip 11, the detachable cavitation seat 6 is stably installed. Its internal cavitation channel 61 adopts a "gradual contraction-sudden expansion" structure. After the fluid accelerates through the contraction section, a sudden pressure drop in the expansion section triggers the cavitation effect, inducing the generation and initial breakup of numerous cavitation bubbles. Immediately afterwards, the fluid enters the bubble generator 1, which is also supported by the first positioning strip 11. The detachable swirl seat 7, positioned by strip 11, has a spiral swirl chamber 71 inside that guides the fluid to form a high-speed swirl. The strong shear force of the swirl further breaks up the cavitation bubbles, improving the bubble generation efficiency. The servo motor 26 is started, driving the rotating rod 22 to rotate. The rotating rod 22 drives the cutting impellers 23, which are arranged in stages, to rotate. From the direction close to the detachable swirl seat 7 to the direction away, the four-impeller, six-impeller, and eight-impeller are used to cut the bubbles in stages, gradually increasing the shear force and stabilizing the bubble particle size at 10μm-100nm, thus completing the efficient generation of micro and nano bubbles.

[0053] The refined micro-nano bubbles enter the discharge pipe 31 with the gas-liquid mixture and are discharged through the discharge pipe 31. The microporous membrane 33 filters the discharged micro-nano bubbles, intercepting larger bubbles that have not been refined and residual impurities, ensuring that the particle size of the discharged bubbles meets the requirements. At the same time, the microporous membrane 33 constrains the bubbles, preventing them from merging and growing larger during the discharge process. The follower impeller 35 rotates under the push of the discharged fluid, and the cleaning brush 36 fixed on the bottom surface of the follower impeller 35 rotates accordingly, continuously cleaning the microporous membrane 33, removing impurities attached to the surface of the microporous membrane 33 in a timely manner, preventing the microporous membrane 33 from clogging, and ensuring the smooth discharge of micro-nano bubbles.

[0054] When disassembling the sealing plate 21, rotate the shaft 59, which drives the rotating ring 51 to rotate through the gear 510 and the arc rack 57. Under the pushing action of the arc sliding frame 52 on the L-shaped wedge block 55, the L-shaped mounting block 54 moves away from the L-shaped positioning block 28. At this time, the L-shaped positioning block 28 can be removed from the positioning frame 53, and the sealing plate 21 can be removed to maintain the inside of the bubble generator 1.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A micro / nano bubble generator combining hydraulic cutting and cavitation, comprising a bubble generating cylinder (1), characterized in that: The inner wall of the bubble generating cylinder (1) is slidably connected to a detachable cavitation seat (6), and the inner wall of the detachable cavitation seat (6) is provided with a cavitation flow channel (61). The inner wall of the bubble generating cylinder (1) is slidably connected to a detachable swirl seat (7), and the inner wall of the detachable swirl seat (7) is provided with a swirl cavity (71). The inner wall of the bubble generating cylinder (1) is fixed with two symmetrical first positioning strips (11). The detachable cavitation seat (6) and the detachable swirl seat (7) are both slidably connected to the first positioning strips (11). The bubble generating cylinder (1) is equipped with a cutting mechanism (2). The cutting mechanism (2) includes a sealing plate (21). Three L-shaped positioning blocks (28) arranged in a circle are fixed on the outer surface of the sealing plate (21). A rotating rod (22) is rotatably connected to the inner wall of the sealing plate (21). Three cutting impellers (23) are fixed on the outer surface of the rotating rod (22). A discharge mechanism (3) is provided below the bubble generating cylinder (1). The discharge mechanism (3) includes a discharge pipe (31) fixed on the outer surface of the bubble generating cylinder (1). An inner threaded cap (32) is threadedly connected to the outer surface of the discharge pipe (31). A microporous membrane (33) is fixed on the inner wall of the inner threaded cap (32). The bubble generating cylinder (1) is provided with a feeding mechanism (4) on its outside. The feeding mechanism (4) includes a feeding pipe (41) fixed on the outer surface of the bubble generating cylinder (1). A detachable seat (42) is slidably connected to the inner wall of the feeding pipe (41). A filter screen (43) is fixed to the inner wall of the detachable seat (42).

2. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 1, characterized in that: The outer surface of the sealing plate (21) is fixed with a U-shaped support frame (25), the rotating rod (22) passes through the U-shaped support frame (25) and is rotatably connected to the U-shaped support frame (25), and the outer surface of the U-shaped support frame (25) is fixed with an installation ring (24), which is adapted to the detachable swirl seat (7).

3. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 1, characterized in that: A servo motor (26) is fixed on the outer surface of the sealing plate (21). The end of the rotating rod (22) near the servo motor (26) is fixed to the output shaft end of the servo motor (26). A protective cover (27) is installed on the outer surface of the sealing plate (21). The protective cover (27) is compatible with the servo motor (26).

4. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 1, characterized in that: The inner wall of the microporous membrane (33) is fixed with a U-shaped bracket (34), and the inner wall of the U-shaped bracket (34) is rotatably connected with a follower impeller (35). The bottom surface of the follower impeller (35) is fixed with a cleaning brush (36), and the cleaning brush (36) is adapted to the microporous membrane (33).

5. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 1, characterized in that: The inner wall of the feed tube (41) is fixed with two symmetrical second positioning strips (44), and both second positioning strips (44) are slidably connected to the detachable seat (42).

6. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 1, characterized in that: An installation mechanism (5) is provided on the outside of the bubble generating cylinder (1). The installation mechanism (5) includes a rotating ring (51) rotatably connected to the outer surface of the bubble generating cylinder (1) and three positioning frames (53) fixed to the outer surface of the bubble generating cylinder (1). Three arc-shaped sliding frames (52) arranged in a circle are fixed on the outer surface of the rotating ring (51). The positioning frames (53) are adapted to L-shaped positioning blocks (28). Guide plates (56) are fixed on the outer surface of the three positioning frames (53). L-shaped mounting blocks (54) are slidably connected on the outer surface of the three guide plates (56). The L-shaped mounting blocks (54) are adapted to L-shaped positioning blocks (28). L-shaped wedge blocks (55) are fixed on the outer surface of the three L-shaped mounting blocks (54). The three L-shaped wedge blocks (55) are slidably connected to the inner walls of the three arc-shaped sliding frames (52).

7. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 6, characterized in that: The mounting mechanism (5) further includes a fixing seat (58) fixed on the outer surface of the bubble generating cylinder (1). An arc-shaped rack (57) is fixed on the outer surface of the rotating ring (51). A rotating shaft (59) is rotatably connected to the inner wall of the fixing seat (58). A gear (510) is fixed on the outer surface of the rotating shaft (59). The gear (510) meshes with the arc-shaped rack (57). A fastening bolt (511) is threadedly connected to the inner wall of the fixing seat (58). The fastening bolt (511) is adapted to the gear (510).

8. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 6, characterized in that: The installation mechanism (5) also includes two anti-detachment rings (513) fixed on the outer surface of the bubble generating cylinder (1), and both anti-detachment rings (513) are adapted to the rotating ring (51).

9. The micro / nano bubble generator combining hydraulic cutting and cavitation as described in claim 6, characterized in that: The mounting mechanism (5) also includes two arc-shaped covers (512) mounted on the outer surface of the bubble generating cylinder (1), both of which are adapted to the bubble generating cylinder (1).

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