Microbubble generating tank, generating device and water outlet device
By using nested outer and inner spiral channels, with the outer spiral channel gradually decreasing in size and the inner spiral channel gradually increasing in size, and with opposite spiral directions, the problem of large bubbles being unable to be sheared into microbubbles in existing technologies is solved, thereby improving the density of microbubbles and the cleaning effect.
Patent Information
- Application Number
- CN202520277643.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing microbubble generators cannot effectively shear large bubbles into microbubbles, resulting in poor cleaning performance.
The system employs nested outer and inner spiral channels, with the outer spiral channel having a gradually decreasing diameter and the inner spiral channel having a gradually increasing diameter, and the spiral directions being opposite, creating a dual shearing effect that increases gas-liquid mixing time and shears and breaks up large bubbles.
It breaks large bubbles into tiny bubbles, thereby increasing the density of microbubbles and improving the cleaning effect.
Smart Images
Figure CN223832127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a water outlet device, and more particularly to a microbubble generator. Background Technology
[0002] As people's living standards improve, they have increasingly higher requirements for household water, such as water for bathing, washing fruits and vegetables, and cleaning dishes. They not only demand that household water be pollution-free but also that it provide effective cleaning. To address this, microbubble generators have been developed to create microbubble water from water mixed with air or other gases. The presence of microbubbles in the water enhances the cleaning effect. Related technologies utilize microbubble generators, which include water-air mixing tanks. There are two main types: one type only adds air to the water in the mixing tank without increasing the pressure, resulting in low dissolved oxygen levels; the other type uses a booster pump and an air pump to pressurize and add air. While this increases dissolved oxygen levels, it doesn't effectively break down large bubbles into tiny, dense bubbles, thus the effect is less than satisfactory. Utility Model Content
[0003] The main technical problem to be solved by this utility model is to provide a microbubble generating tank that reduces the diameter of microbubbles and increases their density.
[0004] To solve the above-mentioned technical problems, this utility model provides a microbubble generator, including: an inlet, an outlet, and a double helical channel disposed between the inlet and the outlet; the double helical channels are nested to form an outer helical channel and an inner helical channel; one end of the outer helical channel is connected to the inlet, and one end of the inner helical channel is connected to the outlet; the other ends of the outer helical channel and the inner helical channel are connected to each other.
[0005] In a preferred embodiment, the diameter of the outer spiral channel gradually decreases along the direction of water flow.
[0006] In a preferred embodiment, the diameter of the inner spiral channel gradually increases along the direction of water flow.
[0007] In a preferred embodiment, the outer spiral channel and the inner spiral channel have opposite spiral directions.
[0008] In a preferred embodiment: the microbubble generator includes an upper shell, a lower shell, a first stud, a second stud, and a first sealing ring connected between the upper shell and the lower shell;
[0009] The upper and lower housings form a sealed chamber for accommodating the first and second studs via a first sealing ring.
[0010] In a preferred embodiment: the bottom of the lower housing is provided with a base for connecting the first stud, and a second sealing ring is provided between the first stud and the base.
[0011] In a preferred embodiment: the first stud and the second stud are hollow structures to form a first chamber and a second chamber; the second stud is disposed in the first chamber to form the inner spiral channel between the second stud and the inner wall of the first chamber;
[0012] The inner spiral channel is connected to the water outlet through the second chamber.
[0013] In a preferred embodiment, a counter-rotating structure is provided at the position where the second chamber communicates with the inner spiral channel.
[0014] This utility model also provides a microbubble generating device, including: an air pump, a water pump, and a microbubble generating tank as described above.
[0015] In a preferred embodiment: the air outlet of the air pump is connected to the water outlet of the water pump, and the water outlet of the water pump is connected to the water inlet of the microbubble generator.
[0016] This utility model also provides a water outlet device, including a water outlet device body and a microbubble generator as described above; the water inlet of the water outlet device is connected to the water outlet of the microbubble generator tank.
[0017] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:
[0018] This invention provides a microbubble generator. The nested outer and inner spiral channels increase the transport path of gas and liquid within the generator, thereby increasing the mixing time. Furthermore, the two spiral channels enable a double-shearing breakup effect on large bubbles, transforming them into microbubbles, reducing their diameter and increasing their density. Additionally, the diameter of the outer spiral channel gradually decreases along the water flow direction, while the diameter of the inner spiral channel gradually increases. This causes the water flow to first accelerate and then decelerate, further promoting bubble breakup and the formation of microbubbles. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the microbubble generating device in a preferred embodiment of the present invention;
[0020] Figure 2 This is an exploded view of the microbubble generator in a preferred embodiment of the present invention;
[0021] Figure 3 This is a perspective view of the microbubble generator in a preferred embodiment of the present invention;
[0022] Figure 4 This is a partial cross-sectional perspective view of the microbubble generator in a preferred embodiment of the present invention;
[0023] Figure 5 This is a cross-sectional view of the outer spiral channel in a preferred embodiment of the present invention;
[0024] Figure 6 This is a cross-sectional view of the inner spiral channel in a preferred embodiment of the present invention;
[0025] Figure 7 This is a schematic diagram of the water flow path in a preferred embodiment of the present invention;
[0026] Figure 8 This is a schematic diagram of water flowing into the outer spiral channel in a preferred embodiment of the present invention. Detailed Implementation
[0027] To make the technical solution and features of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific examples. It should be understood that these examples are only for illustrating this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.
[0028] refer to Figure 1-8 This embodiment provides a microbubble generating device, including: an air pump 1, a water pump 2, and a microbubble generating tank 3. The air outlet of the air pump 1 is connected to the water outlet of the water pump 2, and the water outlet of the water pump 2 is connected to the water inlet 31 of the microbubble generating tank 3. This allows both gas and liquid to be introduced into the microbubble generating tank 3 for mixing. In this embodiment, the gas supplied by the air pump 1 is delivered outside the microbubble generating tank 3 and then fed into the microbubble generating tank 3 together with pressurized water. Alternatively, the gas can be directly fed into the microbubble generating tank 3 separately, allowing the gas and liquid to mix within the microbubble generating tank 3.
[0029] To achieve thorough mixing of gas and liquid and to shear large bubbles into smaller ones, the microbubble generator 3 includes: the aforementioned inlet 31, outlet 32, and a double-helix channel disposed between the inlet 31 and outlet 32; the double-helix channel is nested to form an outer helix channel 33 and an inner helix channel 34; one end of the outer helix channel 33 is tangentially connected to the inlet 31, and one end of the inner helix channel 34 is connected to the outlet 32; the other ends of the outer helix channel 33 and the inner helix channel 34 are interconnected. The nested outer helix channel 33 and inner helix channel 34 increase the transport path of gas and liquid within the microbubble generator 3, thereby increasing the mixing time. Furthermore, the presence of two helix channels enables a double shearing effect on large bubbles, allowing them to be broken down into microbubbles, reducing the diameter of the microbubbles and increasing their density.
[0030] To further increase the uniformity of gas-liquid mixing, the diameter of the outer spiral channel 33 gradually decreases along the water flow direction, while the diameter of the inner spiral channel 34 gradually increases along the water flow direction. This allows the water flow to accelerate and then decelerate within the microbubble generator 3, further promoting bubble breakage and the formation of microbubbles.
[0031] In this embodiment, the outer spiral channel 33 and the inner spiral channel 34 have opposite spiral directions. When the gas-liquid mixture enters the outer spiral channel 33 of the mixing tank tangentially, it begins to spiral. Large bubbles are continuously sheared and broken into smaller bubbles during the spiral motion. At the same time, as the diameter of the outer spiral channel 33 gradually decreases along the water flow direction, the gas-liquid mixture is continuously accelerated within the channel. Upon reaching the top, it reverses direction and enters the inner spiral channel 34, where it is sheared and broken into tiny bubbles again during the second spiral motion.
[0032] To form the above structure, the microbubble generating tank 3 in this embodiment includes an upper shell 35, a lower shell 36, a first stud 37, a second stud 38, and a first sealing ring 39 connected between the upper shell 35 and the lower shell 36; the upper shell 35 and the lower shell 36 form a sealed chamber for accommodating the first stud 37 and the second stud 38 through the first sealing ring 39.
[0033] Furthermore, the bottom of the lower housing 36 is provided with a base 361 for connecting the first stud 37, and a second sealing ring 362 is provided between the first stud 37 and the base 361. This prevents water from directly entering the inner spiral channel 34 through this gap; water can only enter the inner spiral channel 34 after it has completely passed through the outer spiral channel 33.
[0034] The first stud 37 and the second stud 38 are hollow structures to form a first chamber and a second chamber 381. The second stud 38 is disposed in the first chamber to form the inner spiral channel 34 between the second stud 38 and the inner wall of the first chamber. The inner spiral channel 34 is connected to the outlet 32 through the second chamber 381. In this way, water flows through the inner spiral channel 34 and enters the second chamber 381, and finally flows out from the outlet 32.
[0035] Finally, a counter-rotating structure 382 is provided at the position where the second chamber 381 communicates with the inner spiral channel 34. The counter-rotating structure 382 can enhance the shearing effect when water is discharged.
[0036] The aforementioned microbubble generator can be widely used in water outlet devices that require the generation of microbubbles, such as showers or faucets, simply by connecting the outlet of the microbubble generator to the outlet of the shower or faucet.
[0037] The above is only one specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.
Claims
1. A microbubble generator, characterized in that... include: Inlet, outlet, and a double-helix channel between the inlet and outlet; The nested double helix channels form an outer helix channel and an inner helix channel; One end of the outer spiral channel is connected to the water inlet, and one end of the inner spiral channel is connected to the water outlet; the other ends of the outer spiral channel and the inner spiral channel are connected to each other.
2. A microbubble generator according to claim 1, characterized in that: The diameter of the outer spiral channel gradually decreases along the direction of water flow.
3. A microbubble generator according to claim 1, characterized in that: The diameter of the inner spiral channel gradually increases along the direction of water flow.
4. A microbubble generator according to claim 1, characterized in that: The outer spiral channel and the inner spiral channel have opposite spiral directions.
5. A microbubble generator according to any one of claims 1-4, characterized in that: The microbubble generator includes an upper shell, a lower shell, a first stud, a second stud, and a first sealing ring connecting the upper shell and the lower shell; The upper and lower housings form a sealed chamber that accommodates the first and second studs via a first sealing ring.
6. A microbubble generator according to claim 5, characterized in that: The bottom of the lower housing is provided with a base for connecting the first stud, and a second sealing ring is provided between the first stud and the base.
7. A microbubble generator according to claim 6, characterized in that: The first stud and the second stud are hollow structures to form a first chamber and a second chamber, respectively; the second stud is disposed in the first chamber to form the inner spiral channel between the second stud and the inner wall of the first chamber; The inner spiral channel is connected to the water outlet through the second chamber.
8. A microbubble generator according to claim 7, characterized in that: A counter-rotating structure is provided at the position where the second chamber connects with the inner spiral channel.
9. A microbubble generator, characterized in that... include: Air pump, water pump, and microbubble generator as described in any one of claims 1-8.
10. A microbubble generator according to claim 9, characterized in that: The air outlet of the air pump is connected to the water outlet of the water pump, and the water outlet of the water pump is connected to the water inlet of the microbubble generator.
11. A water outlet device, characterized in that... It includes a water outlet device body and a microbubble generating device as described in claim 9 or 10; the water inlet of the water outlet device is connected to the water outlet of the microbubble generating tank.