A microbubble generator device with a rolled plate textured structure

Abstract

This invention discloses a microbubble generator device with a rolled plate textured structure, comprising an outer tube, a water inlet pipe, an air inlet pipe, and a bubble generating tube. The outer tube has a water inlet, and the water inlet pipe communicates with the water inlet. The air inlet pipe is sleeved outside the water inlet pipe. The bubble generating tube includes a middle section and an outlet section. The inner diameter of the outlet section gradually increases away from the middle section. The outer tube has a rear end cap, and the rear end cap has a water outlet. The outlet section communicates with the water outlet. The air inlet pipe is connected to an air inlet pipe extending outside the outer tube and is connected to the middle section. The end of the water inlet pipe away from the water inlet faces the middle section. The outlet section has a connecting structure, and the connecting structure is fixedly connected to a spiral rolled plate located inside the outlet section. The spiral rolled plate is spiral-shaped in a cross-section perpendicular to the axis of the outlet section. The beneficial effect of this invention is that it achieves uniform bubble distribution.

Description

Technical Field

[0001] This invention relates to the technical field of bubble generator devices, and more specifically to an ultramicrobubble generator device with a rolled plate textured structure. Background Technology

[0002] Microbubble generators are used to generate microbubbles in water. Microbubbles refer to bubbles with a diameter of less than 100 micrometers. Due to their small size, high stability, large specific surface area, and long residence time, they have good application effects in wastewater treatment, water oxygenation, chemical reaction stirring and other fields.

[0003] Chinese utility model patent CN112939245B discloses an ultrafine bubble generator, comprising a hollow generator cavity, a generator inlet, a generator outlet, and at least one intermediate generator component. The intermediate generator component is disposed between the generator inlet and the generator outlet and is located within the generator cavity. The generator inlet and the generator outlet are sealed to the generator cavity. The generator cavity has air holes, and the intermediate generator component has multiple first air guide holes communicating with the interior. The advantages are that the ultrafine bubble generator achieves multiple fine fragmentation of the bubbles, which then enter the water flow in a rotating manner and spiral with the water flow, thereby further pulverizing the air bubbles and improving the generator's ability to break up bubbles.

[0004] After microbubbles are formed within the generator outlet, they tend to move upwards, causing them to concentrate in the upper part of the outlet and hindering uniform dispersion. This addresses the problem of uneven bubble distribution in existing microbubble generators. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention aims to provide a microbubble generator device with a rolled plate textured structure, comprising an outer sleeve, a water inlet pipe, an air inlet sleeve, and a bubble generating pipe. This microbubble generator device with a rolled plate textured structure has the advantage of uniform bubble distribution.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows: A microbubble generator device with a rolled plate textured structure includes an outer tube, a water inlet pipe, an air inlet pipe, and a bubble generating tube. The outer tube has a water inlet, and the water inlet pipe is connected to the water inlet. The air inlet pipe is sleeved outside the water inlet pipe. The bubble generating tube includes a middle section and an outlet section. The inner diameter of the outlet section gradually increases in the direction away from the middle section. The outer tube has a rear end cap, and the rear end cap has a water outlet. The outlet section is connected to the water outlet. The air inlet pipe is connected to an air inlet pipe extending outside the outer tube and is connected to the middle section. The end of the water inlet pipe away from the water inlet faces the middle section. The outlet section has a connecting structure, and the connecting structure is fixedly connected to a spiral rolled plate located inside the outlet section. The spiral rolled plate is spiral in shape on a cross section perpendicular to the axis of the outlet section.

[0007] Preferably, the surface of the spiral plate is provided with a textured structure.

[0008] Preferably, the texture structure consists of multiple intersecting grooves.

[0009] Preferably, the depth of the groove is 0.1-0.3 mm.

[0010] Preferably, the angle between any of the grooves and the axis of the bubble generating tube is not less than 20° and not more than 30°.

[0011] Preferably, the cross-sectional profile of the spiral plate extends 3-5 turns along the spiral direction.

[0012] Preferably, the outer diameter of the end of the water inlet pipe near the middle section is smaller than the inner diameter of the middle section, and the axis of the water inlet pipe coincides with the axis of the middle section.

[0013] Preferably, the spiral plate is provided with a support frame at the end away from the connecting structure, and the support frame is fixedly connected to the spiral plate at multiple positions.

[0014] Preferably, the connecting structure includes a connecting ring, a connecting rod, and a sealing ring. The rear end cover has a groove for accommodating the connecting ring and the sealing sleeve. The sealing ring has a sealing groove with its opening facing the outlet section. The outer wall of the connecting ring is inserted into the sealing groove. The two sides of the sealing ring are respectively engaged with the outlet section and the rear end cover. The connecting ring has a connecting groove for the connecting rod to be inserted. The connecting rod is fixedly connected to the spiral plate.

[0015] Preferably, the rear end cover has a through groove communicating with the card slot, and the rear end cover has a locking element for locking the connecting rod.

[0016] Compared with the prior art, the present invention has achieved beneficial technical effects: 1. After the outlet section is generated, it can enter the inner side of the spiral plate and block the bubbles through the spiral baffle, preventing the bubbles from floating directly upward to the top of the outlet section. This results in the bubbles being distributed in different areas of the outlet section, effectively improving the uniformity of bubble distribution within the outlet section and achieving the advantage of uniform bubble distribution.

[0017] 2. Because the cross-section of the spiral plate is spiral-shaped, the inner side of the spiral plate is connected to the outer side of the spiral plate. This allows water that rushes into the inner side of the spiral plate from the middle section to flow to the outer side of the spiral plate along the spiral direction. This also reduces the flow rate of the water inside the spiral plate, preventing the water flow rate inside the spiral plate from being too fast and affecting the bubble crushing effect.

[0018] 3. This design allows users to quickly disassemble and clean the spiral plate without complicated tools, facilitating cleaning, component replacement, or maintenance of the generator's interior. The sealing performance of the sealing ring remains unaffected during disassembly and reassembly, ensuring normal liquid flow within the generator. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a microbubble generator device with a rolled plate textured structure according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a microbubble generator device with a rolled plate textured structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the spiral plate and support frame in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the seal, connecting ring, and connecting rod in an embodiment of the present invention; Figure 5 This is a schematic diagram of the connecting rod and through groove in an embodiment of the present invention.

[0020] The technical features referred to by the various reference numerals in the accompanying drawings are as follows: 11. Outer sleeve; 12. Inlet; 13. Outlet; 14. Rear end cap; 21. Inlet pipe; 22. Air inlet sleeve; 23. Air inlet pipe; 24. Annular jet vent; 31. Bubble generator pipe; 32. Intermediate section; 33. Outlet section; 41. Spiral coil plate; 42. Groove; 43. Support frame; 51. Slot; 52. Connecting ring; 53. Connecting rod; 54. Sealing ring; 55. Sealing groove; 56. Connecting groove; 57. Through groove; 58. Locking element; Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments. However, the scope of protection of this invention is not limited to the specific embodiments described below.

[0022] refer to Figure 1-5 A microbubble generator device with a rolled plate textured structure includes an outer sleeve 11, a water inlet pipe 21, an air inlet sleeve 22, and a bubble generating pipe 31.

[0023] The outer sleeve 11 is provided with a water inlet 12, and the water inlet pipe 21 is connected to the water inlet 12. The air inlet sleeve 22 is sleeved on the outside of the water inlet pipe 21. The bubble generating pipe 31 includes a middle section 32 and an outlet section 33. The inner diameter of the outlet section 33 gradually increases in the direction away from the middle section 32. The outer sleeve 11 is provided with a rear end cap 14, and the rear end cap 14 is provided with a water outlet 13. The outlet section 33 is connected to the water outlet 13. The air inlet sleeve 22 is connected to an air inlet pipe 23 extending outside the outer sleeve 11. The air inlet sleeve 22 is connected to the middle section 32. The outer diameter of the end of the water inlet pipe 21 near the middle section 32 is smaller than the inner diameter of the middle section 32. The axis of the water inlet pipe 21 coincides with the axis of the middle section 32. This forms an annular jet groove 24 between the water inlet pipe 21 and the middle section 32. Other gases in the air inlet sleeve 22 are sprayed onto the inner wall of the middle section 32 through the annular jet groove 24, effectively improving the uniformity of gas distribution in the bubble generating pipe 31 and achieving the advantage of uniform bubble distribution. The end of the inlet pipe 21 away from the inlet 12 faces the middle section 32, and the outlet section 33 is provided with a connecting structure.

[0024] The connecting structure is fixedly connected to a spiral plate 41 located within the outlet section 33. The spiral plate 41 is spiral-shaped in a cross-section perpendicular to the axis of the outlet section 33. The side of the spiral plate 41 closest to the axis of the outlet section 33 is the inner side of the spiral plate 41, and the side of the spiral plate 41 furthest from the axis of the outlet section 33 is the outer side of the spiral plate 41. The connecting structure includes a connecting ring 52, a connecting rod 53, and a sealing ring 54. The rear end cover 14 has a slot 51 for accommodating the connecting ring 52 and the sealing sleeve. The sealing ring 54 has a sealing groove 55 with its opening facing the outlet section 33. The outer wall of the connecting ring 52 is inserted into the sealing groove 55. The two sides of the sealing ring 54 are respectively engaged with the outlet section 33 and the rear end cover 14. The connecting ring 52 has a connecting groove 56 for the connecting rod 53 to be inserted. The connecting rod 53 is fixedly connected to the spiral plate 41. The rear end cover 14 has a through groove 57 communicating with the slot 51 and a locking element 58 for locking the connecting rod 53. The locking element 58 is a magnet used to attract the connecting rod 53. The connecting rod 53 is made of stainless steel, and the connecting ring 52 is supported by engineering plastic, so that the magnet can stably hold the connecting rod 53 and keep the position of the connecting rod 53 stable. Alternatively, the locking element 58 can be a screw that passes through the rear end cover 14 and is threaded to the connecting rod 53. Screws can provide greater locking force and are suitable for situations with large loads, but screw fastening is less convenient. Therefore, this embodiment uses magnetic attraction. As long as a pushing force greater than the attraction force of the magnet is applied, the connecting rod 53 can be pushed away from the locking element 58, making it easy to disassemble the connecting rod 53 and the spiral plate 41.

[0025] The spiral plate 41 has a textured surface. When water flows over the surface of the spiral plate 41, the textured surface agitates the water flow, breaking down large bubbles into microbubbles and increasing the number of microbubbles. The textured structure consists of multiple interlocking grooves 42. These interlocking grooves 42 agitate the water flow in different directions, improving the agitation effect and promoting the generation of more microbubbles. The depth of the grooves 42 is 0.1-0.3 mm. The grooves 42 are laser-etched to a depth of 0.1 mm. After laser etching the grooves 42 onto a flat plate, a plate rolling machine is used to roll the plate into a spiral shape, thus forming the spiral plate 41. The textured structure achieves a bubble cluster diameter distribution dispersion coefficient of <13%, allowing the device to operate continuously for 18 hours. The bubble size variation rate is <5%. The angle between any groove 42 and the axis of the bubble generating tube 31 is not less than 20° and not more than 30°. In this embodiment, the angle between the groove 42 and the axis of the bubble generating tube 31 is 30°. By controlling the angle between the groove 42 and the axis of the bubble generating tube 31 to be not less than 20°, it is ensured that the water flow can tear apart the two parts of the bubble located outside the groove 42 and outside the groove 42. The angle between the groove 42 and the axis of the bubble generating tube 31 does not exceed 30°, so that the water flow can push the ultra-microbubbles in the groove 42 to flow along the axis of the bubble generating tube 31 towards the outlet 13.

[0026] The cross-sectional profile of the spiral plate 41 extends 3-5 turns along the spiral direction. In this embodiment, the spiral plate 41 winds 3.5 turns along the spiral direction. Too many turns of the spiral plate 41 will result in greater obstruction to water flow, while too few turns will lead to poor bubble distribution uniformity. Controlling the number of turns of the spiral plate 41 to 3-5 turns ensures smooth water flow within the outlet section 33 while achieving a relatively uniform bubble distribution. A support frame 43 is provided at the end of the spiral plate 41 away from the connecting structure. The support frame 43 is fixedly connected to the spiral plate 41 at multiple locations. The support frame 43 is fixedly connected to the inner and outer layers of the spiral plate 41 at multiple different locations, allowing the inner and outer layers of the spiral plate 41 to transmit supporting force through the support frame 43, thereby improving the structural stability of the spiral plate 41.

[0027] In operation, water is pumped into inlet 12, flowing sequentially through inlet 12, inlet pipe 21, intermediate section 32, outlet section 33, and outlet 13, exiting the bubble generator device through outlet 13. Simultaneously, air is injected into inlet sleeve 22 through air inlet pipe 23, creating positive pressure within the air inlet sleeve 22. The air in the air inlet sleeve 22 enters the intermediate section 32, mixes with the water, and moves with the water flow towards outlet section 33. Because the inner diameter gradually increases away from the intermediate section 32, the water flow velocity in outlet section 33 is slower, while the water flow velocity in intermediate section 32 is faster. The water flow in intermediate section 32, carrying air bubbles, impacts the slower-flowing water in outlet section 33, thus breaking up the bubbles and generating ultrafine bubbles. The air inlet pipe 23 injects air into the air inlet sleeve 22, creating positive pressure within the air inlet sleeve 22 to prevent water from entering its interior.

[0028] This embodiment has the following advantages: After the outlet section 33 is generated, it can enter the inner side of the spiral plate 41 and block the bubbles through the spiral baffle, preventing the bubbles from floating directly upward to the upper end of the outlet section 33. This results in the bubbles being distributed in different areas of the outlet section 33, effectively improving the uniformity of bubble distribution within the outlet section 33 and achieving the advantage of uniform bubble distribution.

[0029] Because the cross-section of the spiral plate 41 is spiral-shaped, the inner side of the spiral plate 41 is connected to the outer side of the spiral plate 41. This allows water that rushes into the inner side of the spiral plate 41 from the middle section 32 to flow along the spiral direction of the spiral plate 41 to the outer side of the spiral plate 41. This also reduces the flow rate of the water inside the spiral plate 41, preventing the water flow rate inside the spiral plate 41 from being too fast and affecting the bubble crushing effect.

[0030] The inner and outer layers of the spiral plate 41 can support each other to prevent the spiral plate 41 from deforming and being damaged. The spiral plate 41 with a spiral shape has good stability.

[0031] The spiral plate 41 has textured structures on both its inner and outer sides, enabling the generation of bubbles through these structures on both sides. This allows the gas to be evenly dispersed into a large number of microbubbles, resulting in a more uniform distribution of bubbles in the liquid. This helps improve the application effect of the microbubble generator in wastewater treatment, water aeration, and other fields, fully leveraging the high efficiency of microbubbles.

[0032] A groove 42 with a depth of 0.1 mm is used. When an air bubble with a width greater than 0.1 mm enters the groove 42, part of the bubble is inside the groove 42 while the other part is outside. The water flow impacts the part of the bubble outside the groove 42, tearing both parts of the bubble apart. This allows for the formation of microbubbles with a width of less than 0.1 mm within the groove 42, which is beneficial for generating more microbubbles. The groove 42 depth is less than 0.3 mm, which avoids the groove 42 on the spiral coil 41 being too deep and prevents the spiral coil 41 from breaking.

[0033] The air inlet sleeve 22 is fixedly connected to the bubble generating pipe 31 and the water inlet pipe 21, respectively. The end of the water inlet pipe 21 away from the bubble generating pipe 31 is snapped into the outer sleeve 11. The rear end cover 14 presses the sealing ring 54, the connecting ring 52, the bubble generating pipe 31, the air inlet sleeve 22, and the water inlet pipe 21 to fix their positions. The air inlet pipe 23 passes through the outer sleeve 11 to prevent the water inlet pipe 21, the air inlet sleeve 22, and the bubble generating pipe 31 from rotating, thus locking them in place. The connecting rod 53 is snapped into the connecting groove 56, which provides support through the connecting ring 52 and the rear end cover 14, enabling the connecting rod 53 to stably support the spiral coil plate 41 and achieve the function of supporting the spiral coil plate 41 through the connecting structure.

[0034] Since wastewater often contains a large amount of pollutants, these pollutants adhere to the surface of the spiral plate 41. Therefore, the spiral plate 41 needs to be removed for cleaning to ensure the microbubble effect of the texture structure. Pushing the connecting rod 53 and connecting ring 52 circumferentially causes the connecting ring 52 to rotate within the sealing groove 55, rotating it to a position corresponding to the through groove 57. This allows the connecting rod 53 to slide out of the through groove 57 away from the outlet section 33, and moves the spiral plate 41 from the outlet 13 to the outside of the outer sleeve 11, facilitating cleaning of the spiral plate 41. This design allows users to quickly disassemble and clean the spiral plate 41 without complex tools, and facilitates cleaning, component replacement, or maintenance of the generator's interior. During disassembly and reassembly of the spiral plate 41, the sealing performance of the sealing ring 54 remains unaffected, ensuring normal liquid flow within the generator.

[0035] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the invention.

Claims

1. A microbubble generator device with a rolled plate textured structure, comprising an outer sleeve (11), a water inlet pipe (21), an air inlet sleeve (22), and a bubble generating tube (31), wherein the outer sleeve (11) is provided with a water inlet (12), the water inlet pipe (21) is connected to the water inlet (12), the air inlet sleeve (22) is sleeved outside the water inlet pipe (21), and the bubble generating tube (31) comprises a middle section (32) and an outlet section (33), wherein the inner diameter of the outlet section (33) gradually increases in the direction away from the middle section (32), characterized in that: The outer sleeve (11) is provided with a rear end cover (14), the rear end cover (14) is provided with a water outlet (13), the outlet section (33) is connected to the water outlet (13), the air inlet sleeve (22) is connected to an air inlet pipe (23) extending outside the outer sleeve (11), the air inlet sleeve (22) is connected to the middle section (32), the end of the water inlet pipe (21) away from the water inlet (12) faces the middle section (32), the outlet section (33) is provided with a connecting structure, the connecting structure is fixedly connected to a spiral plate (41) located inside the outlet section (33), the spiral plate (41) is spiral in a cross section perpendicular to the axis of the outlet section (33).

2. The microbubble generator device with a rolled plate textured structure according to claim 1, characterized in that: The surface of the spiral plate (41) is provided with a textured structure.

3. The microbubble generator device with a rolled plate textured structure according to claim 2, characterized in that: The texture structure consists of multiple intersecting grooves (42).

4. The microbubble generator device with a rolled plate textured structure according to claim 3, characterized in that: The depth of the groove (42) is 0.1-0.3 mm.

5. The microbubble generator device with a rolled plate textured structure according to claim 3, characterized in that: The angle between any of the grooves (42) and the axis of the bubble generating tube (31) is not less than 20° and not more than 30°.

6. The microbubble generator device with a rolled plate textured structure according to claim 1, characterized in that: The cross-sectional profile of the spiral plate (41) extends 3-5 turns along the spiral direction.

7. The microbubble generator device with a rolled plate textured structure according to claim 1, characterized in that: The outer diameter of the end of the water inlet pipe (21) near the middle section (32) is smaller than the inner diameter of the middle section (32), and the axis of the water inlet pipe (21) coincides with the axis of the middle section (32).

8. The microbubble generator device with a rolled plate textured structure according to claim 1, characterized in that: The spiral plate (41) is provided with a support frame (43) at one end away from the connecting structure, and the support frame (43) is fixedly connected to the spiral plate (41) at multiple positions.

9. The microbubble generator device with a rolled plate textured structure according to claim 1, characterized in that: The connection structure includes a connecting ring (52), a connecting rod (53), and a sealing ring (54). The rear end cover (14) is provided with a slot (51) for accommodating the connecting ring (52) and the sealing sleeve. The sealing ring (54) is provided with a sealing groove (55) with its opening facing the outlet section (33). The outer wall of the connecting ring (52) is inserted into the sealing groove (55). The two sides of the sealing ring (54) are respectively engaged with the outlet section (33) and the rear end cover (14). The connecting ring (52) is provided with a connecting groove (56) for the connecting rod (53) to be inserted. The connecting rod (53) is fixedly connected to the spiral plate (41).

10. The microbubble generator device with a rolled plate textured structure according to claim 9, characterized in that: The rear end cover (14) is provided with a through groove (57) communicating with the slot (51), and the rear end cover (14) is provided with a locking element (58) for locking the connecting rod (53).

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