A bubble generator

Abstract

The present invention discloses a bubble generator, which includes a first-stage bubble-making part and a second-stage bubble-making part, wherein the first-stage bubble-making part has a gas pre-storage space and at least one air inlet channel connected to the gas pre-storage space, and the second-stage bubble-making part has a first bubble channel and at least one second bubble channel connected to the first bubble channel, wherein the second-stage bubble-making part and the first-stage bubble-making part are mounted on each other, and the first bubble channel is connected to the gas pre-storage space. When a high-speed water flow flows through the gas pre-storage space, the gas can automatically enter the gas pre-storage space through the air inlet channel and mix with the high-speed water flow to form bubbles, and bubbles with larger sizes can be crushed by the second-stage bubble-making part when flowing through the first bubble channel to form bubbles with smaller sizes, and these bubbles with smaller sizes can be discharged through the second bubble channel.

Description

Technical Field

[0001] The present invention relates to a bubble generating device, and more particularly to a bubble generator, wherein the bubble generator can generate tiny bubbles. Background Art

[0002] In recent years, under the background of rapid social and economic development, environmental problems have been increasingly challenged, especially the pollution of water resources has become increasingly severe. For example, the water pollution in the rivers of many large, medium and small cities is serious, so the treatment of polluted water resources is imminent. Now, a bubble device is usually installed in the river to treat the polluted water resources using bubble technology. Specifically, the bubble device can generate bubbles at the bottom of the river. Based on buoyancy, the bubbles can float from the bottom to the top of the bottom of the river. In the process of the bubble floating, on the one hand, the bubbles can bring the pollutants in the polluted water out of the water from the bottom to the top, which is conducive to the subsequent natural decomposition of the pollutants. On the other hand, the floating of the bubbles can make dead water (non-flowing water or slow-flowing water is called dead water) become running water (water flowing at a faster speed is called running water) and further accelerate the decomposition of pollutants in the polluted water. Although the existing bubble device can solve some water pollution problems, the existing bubble device has high energy consumption, large size, small bubble generation and excessive bubble size, so that the efficiency of the bubble device is low and the usability is poor. Summary of the invention

[0003] The object of the present invention is to provide a bubble generator, which has a simple structure, low energy consumption, a large bubble generation amount and a small bubble size.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a bubble generator, characterized in that the bubble generator includes a first-stage bubble-making part and a second-stage bubble-making part, the first-stage bubble-making part includes a first bubble-making body and a second bubble-making body, and the first-stage bubble-making part has a gas pre-storage space and at least one air inlet channel connected to the gas pre-storage space, the first bubble-making body has a first channel, the second bubble-making body has a second channel, the end of the first bubble-making body and the end of the second bubble-making body are installed with each other to form the gas pre-storage space between the first bubble-making body and the second bubble-making body, and the first channel of the first bubble-making body and the second channel of the second bubble-making body are respectively connected on opposite sides of the gas pre-storage space. The gas pre-storage space, the second-level bubble-making part includes a connector, at least one mounting column and a third bubble-making body, and the second-level bubble-making part has a first bubble channel and at least one second bubble channel connected to the first bubble channel, the first bubble channel runs through the bubble inlet side and the bubble outlet side of the connector, and each of the mounting columns extends on the bubble outlet side of the connector at intervals to form the second bubble channel between adjacent mounting columns, the third bubble-making body is installed on each of the mounting columns, and the first bubble channel is opposite to the first bubble-making surface of the third bubble-making body, the connector of the second-level bubble-making part is installed on the second bubble-making body of the first-level bubble-making part, and the second channel of the second bubble-making body is connected to the first bubble channel of the second-level bubble-making part.

[0005] As a further preferred example of the bubble generator of the present invention, the first channel forms a first inlet and a first outlet at opposite ends of the first bubble-making body, respectively, wherein the cross-sectional diameter parameter of the first inlet is S1, the cross-sectional diameter parameter of the first outlet is S2, and the ratio range of the cross-sectional diameter parameter S1 of the first inlet to the cross-sectional diameter parameter S2 of the first outlet is: 36:1>S1:S2>4:1.

[0006] As a further preferred example of the bubble generator of the present invention, the first channel forms a first inlet and a first outlet at opposite ends of the first bubble-making body, respectively, and a cross-sectional diameter parameter of the first outlet is S2. The second channel forms a second inlet and a second outlet at opposite ends of the second bubble-making body, respectively, and a cross-sectional diameter parameter of the second inlet is S3. The ratio range of the cross-sectional diameter parameter S3 of the second inlet to the cross-sectional diameter parameter S2 of the first outlet is: S3:S2>1:1.

[0007] As a further preferred example of the bubble generator of the present invention, the second channel forms a second inlet and a second outlet at opposite ends of the second bubble-making body, respectively, the cross-sectional diameter parameter of the second inlet is S3, and the ratio range of the cross-sectional diameter parameter S3 of the second inlet to the cross-sectional diameter parameter S2 of the first outlet is: S3:S2>1:1.

[0008] As a further preferred example of the bubble generator of the present invention, the length dimension parameter of the gas pre-storage space is L, the radius dimension parameter of the gas pre-storage space is R1, the radius dimension parameter of the second inlet of the second bubble-making body is R2, and the radius dimension parameter of the first outlet of the first bubble-making body is R3, wherein the ratio range of the length dimension parameter L of the gas pre-storage space and the radius dimension parameter R3 of the first outlet of the first bubble-making body is: 0.5R3<L<6R3, and the ratio range of the radius dimension parameter R1 of the gas pre-storage space and the radius dimension parameter R2 of the second inlet of the second bubble-making body is: R1:R2>2.

[0009] As a further preferred example of the bubble generator of the present invention, the ratio range of the length dimension parameter L of the gas pre-storage space and the radius dimension parameter R3 of the first outlet of the first bubble-making body is: R3<L<3R3.

[0010] As a further preferred example of the bubble generator of the present invention, the distance dimension parameter between the opening of the first bubble channel and the first bubble making surface of the third bubble making body is l, and the radius dimension parameter of the first bubble channel is R4, wherein the ratio range of the distance dimension parameter l between the opening of the first bubble channel and the first bubble making surface of the third bubble making body and the radius dimension parameter R4 of the first bubble channel is: 0.5R4<l<6R4.

[0011] As a further preferred example of the bubble generator of the present invention, the ratio range of the distance dimension parameter l between the opening of the first bubble channel and the first bubble making surface of the third bubble making body and the radius dimension parameter R4 of the first bubble channel is: R4<l<3R4.

[0012] As a further preferred example of the bubble generator of the present invention, the bubble generator also includes a third-level bubble-making portion, the third-level bubble-making portion having a second bubble-making surface and a bubble-making channel formed by the second bubble-making surface, the bubble-making channel runs through the opposite ends of the third-level bubble-making portion to make the third-level bubble-making portion present a cylindrical structure, one end of the third-level bubble-making portion is installed on the peripheral wall of the connecting body of the second-level bubble-making portion to maintain each of the mounting columns of the second-level bubble-making portion and the third bubble-making body in the bubble-making channel of the third-level bubble-making portion, and each of the second bubble channels of the second-level bubble-making portion is opposite to the second bubble-making surface of the third-level bubble-making portion.

[0013] The beneficial effect of the bubble generator of the present invention is that when the high-speed water flow flows from the first outlet of the first bubble-making body through the gas pre-storage space to the second inlet of the second bubble-making body, the high-speed water flow can form a negative pressure environment in the gas pre-storage space and make the gas automatically enter the gas pre-storage space from the air inlet channel of the first-level bubble-making part, and at this time, the gas in the gas pre-storage space can be mixed with the high-speed water flow flowing through the gas pre-storage space to form bubbles. The radius of the gas pre-storage space is greater than the radius of the first outlet of the first bubble-making body, and the length of the gas pre-storage space is limited to a reasonable range, so that gas can be pre-stored in the gas pre-storage space, so that enough gas can be mixed in the gas pre-storage space to form a sufficient number of bubbles later.

[0014] Other advantages and features of the bubble generator of the present invention will be further explained in the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A and Figure 1B Each of them is a three-dimensional schematic diagram of an embodiment of the bubble generator.

[0016] Figure 2A and Figure 2B They are respectively exploded schematic diagrams of the above-mentioned embodiments of the bubble generator.

[0017] Figure 3 It is a cross-sectional schematic diagram of the above-mentioned embodiment of the bubble generator.

[0018] Figure 4 yes Figure 3 A magnified view of the local location.

[0019] Figure 5A and Figure 5B They are respectively three-dimensional schematic diagrams of another embodiment of the bubble generator.

[0020] Fig. 6A and Figure 6B Schematic diagram of the exploded view of the above embodiment of the bubble generator.

[0021] Figure 7 It is a cross-sectional schematic diagram of the above-mentioned embodiment of the bubble generator.

[0022] Figure 8 yes Figure 7 A magnified view of the local location. DETAILED DESCRIPTION

[0023] Figures 1A to 4A bubble generator provided according to the inventive spirit of the present invention is shown, which is used to generate tiny bubbles in a liquid. For example, the bubble generator can be installed and immersed in a position below the water surface of a river channel, and can generate tiny bubbles with a size of nanometers in the river channel. When the tiny bubbles with a size of nanometers float up from the bottom to the top in the water of the river channel, on the one hand, the tiny bubbles can bring the pollutants in the water of the river channel out of the water surface from the bottom to the top, which is beneficial to the natural decomposition of the pollutants. On the other hand, the tiny bubbles can accelerate the activity of the water in the river channel and further accelerate the decomposition of the pollutants in the water.

[0024] The bubble generator of the present invention comprises a first-stage bubble-making section 1 and a second-stage bubble-making section 2. The first-stage bubble-making section 1 can generate bubbles, and the second-stage bubble-making section 2 can crush the bubbles to form smaller bubbles, such as nano-sized tiny bubbles.

[0025] Specifically, the first-stage bubble-making section 1 includes a first bubble-making body 11 and a second bubble-making body 12 installed with each other, and the first-stage bubble-making section 1 also has a gas pre-storage space 13, which is formed between the first bubble-making body 11 and the second bubble-making body 12. The first bubble-making body 11 has a first channel 111, which runs through the opposite ends of the first bubble-making body 11 to form a first inlet 112 and a first outlet 113 at the opposite ends of the first bubble-making body 11, respectively, and the first channel 111 of the first bubble-making body 11 is connected to the gas pre-storage space 13. The second bubble-making body 12 has a second channel 121, which runs through the opposite ends of the second bubble-making body 12 to form a second inlet 122 and a second outlet 123 at the opposite ends of the second bubble-making body 12, respectively, and the second channel 121 of the second bubble-making body 12 is connected to the gas pre-storage space 13. The end of the first bubble-forming body 11 forming the first outlet 113 and the end of the second bubble-forming body 12 forming the second inlet 122 are installed with each other to form the gas pre-storage space 13 between the first bubble-forming body 11 and the second bubble-forming body 12, and the first channel 111 of the first bubble-forming body 11 and the second channel 121 of the second bubble-forming body 12 are coaxial.

[0026] In the bubble generator of the present invention, the first-stage bubble-making part 1 further has at least one air inlet channel 14, which can be provided in the second bubble-making body 12, and the air inlet channel 14 is connected to the gas pre-storage space 13. Alternatively, the air inlet channel 14 can be provided in the first bubble-making body 11, and the air inlet channel 14 is connected to the gas pre-storage space 13.

[0027] It is worth mentioning that the number of the air inlet channels 14 of the first-stage bubble-making section 1 is not limited. For example, the number of the air inlet channels 14 can be one, two or more, and the number is set according to needs.

[0028] In addition, the first-stage bubble-making section 1 further includes at least one air intake pipe mounting member 15, which is mounted on the second bubble-making body 12 and connected to the air intake channel 14, and an air intake pipe can be installed on the second bubble-making body 12 and connected to the gas pre-storage space 13 through the air intake pipe mounting member 15.

[0029] like Figure 3 and Figure 4 As shown, the cross-sectional diameter parameter of the first inlet 112 of the first bubble-making body 11 is S1, and the cross-sectional diameter parameter of the first outlet 113 of the first bubble-making body 11 is S2, wherein the ratio range of the cross-sectional diameter parameter S1 of the first inlet 112 of the first bubble-making body 11 and the cross-sectional diameter parameter S2 of the first outlet 113 is: 36:1>S1:S2>4:1, so that when water flows into the first channel 111 through the first inlet 112 of the first bubble-making body 11 and is discharged from the first channel 111 through the first outlet 113, the flow rate of the water flow can be increased to form a high-speed water flow. The cross-sectional diameter parameter of the second inlet 122 of the second bubble-forming body 12 is S3, wherein the ratio range of the cross-sectional diameter parameter S3 of the second inlet 122 of the second bubble-forming body 12 to the cross-sectional diameter parameter S2 of the first outlet 113 of the first bubble-forming body 11 is: S3:S2>1:1, so that the bubbles formed in the gas pre-storage space 13 can effectively enter the second channel 121 from the second inlet 122 of the second bubble-forming body 12.

[0030] Continue to refer Figure 3 and Figure 4, the length dimension parameter of the gas pre-storage space 13 is L, the radius dimension parameter of the gas pre-storage space 13 is R1, the radius dimension parameter of the second inlet 122 of the second bubble-making body 12 is R2, and the radius dimension parameter of the first outlet 113 of the first bubble-making body 11 is R3, wherein the ratio range of the length dimension L of the gas pre-storage space 13 and the radius dimension R3 of the first outlet 113 of the first bubble-making body 11 is: 0.5R3<L<6R3, preferably: R3<L<3R3, wherein the gas pre-storage space 13 is L, and the radius dimension parameter of the second inlet 122 of the second bubble-making body 12 is R2, and the radius dimension parameter of the first outlet 113 of the first bubble-making body 11 is R3. The ratio of the radius R1 of the space 13 to the radius R2 of the second inlet 122 of the second bubble-making body 12 is in the range of R1:R2>2, so that when the high-speed water flows through the gas pre-storage space 13, on the one hand, the high-speed water flow can form a negative pressure environment in the gas pre-storage space 13 so that the gas automatically enters the gas pre-storage space 13 through the air inlet channel 14 of the first-stage bubble-making part 1, and on the other hand, the gas pre-storage space 13 can fully mix the gas with the high-speed water flow to form bubbles in the gas pre-storage space 13. In other words, the gas pre-storage space 13 of the first-stage bubble-making part 1 is a bubble-making space.

[0031] like Figures 1A to 4 The second-stage bubble-making part 2 includes a connecting body 21, at least one mounting column 22 and a third bubble-making body 23, and the second-stage bubble-making part 2 also has a first bubble channel 24 and at least one second bubble channel 25. The connecting body 21 has a bubble inlet side 211, a bubble outlet side 212 and a peripheral wall 213, the bubble inlet side 211 and the bubble outlet side 212 correspond to each other, the peripheral wall 213 connects the bubble inlet side 211 and the bubble outlet side 212, the first bubble channel 24 extends from the bubble inlet side 211 of the connecting body 21 to the bubble outlet side 212 to penetrate the connecting body 21, so that the first bubble channel 24 forms a bubble inlet opening 214 on the bubble inlet side 211 of the connecting body 21 and a bubble outlet opening 215 on the bubble outlet side 212 of the connecting body 21. Each of the mounting posts 22 extends to the bubble-out side 212 of the connector 21 at intervals, and the second bubble channel 25 is formed between two adjacent mounting posts 22. The third bubble-making body 23 has a first bubble-making surface 231, and the third bubble-making body 23 is mounted on each of the mounting posts 22, and the first bubble channel 24 faces the first bubble-making surface 231 of the third bubble-making body 23, so that when larger bubbles flow through the first bubble channel 24 and impact the first bubble-making surface 231 of the third bubble-making body 23, the first bubble-making surface 231 of the third bubble-making body 23 can not only crush the larger bubbles to form smaller bubbles, but also change the flow direction of the smaller bubbles and allow the smaller bubbles to be discharged from the second-stage bubble-making part 2 through each of the second bubble channels 25.

[0032] It is worth mentioning that the number of the mounting posts 22 is not limited. Figures 1A to 4 In this embodiment, the number of the mounting posts 22 is four.

[0033] It is also worth mentioning that the connection method of the mounting column 22 and the connector 21 is not limited, for example, the mounting column 22 can be integrally extended to the bubble-outlet side 212 of the connector 21, or the mounting column 22 can be installed on the bubble-outlet side 212 of the connector 21. Accordingly, the connection method of the mounting column 22 and the third bubble-making body 23 is not limited, for example, the mounting column 22 can be integrally formed with the third bubble-making body 23, or the mounting column 22 can be installed on the third bubble-making body 23.

[0034] The connecting body 21 of the second-stage bubble-making section 2 is installed on the second bubble-making body 12 of the first-stage bubble-making section 1, and the first bubble channel 24 of the second-stage bubble-making section 2 and the second channel 211 of the second bubble-making body 12 of the first-stage bubble-making section 1 are interconnected, so that the larger bubbles generated by the first-stage bubble-making section 1 can flow through the first bubble channel 24 of the second-stage bubble-making section 2.

[0035] like Figure 3 and Figure 4 As shown, the distance dimension parameter between the opening of the first bubble channel 24 and the first bubble making surface 231 of the third bubble making body 23 is l, and the radius dimension parameter of the first bubble channel 24 of the second-stage bubble making part 2 is R4, wherein the ratio range of the distance l between the opening of the first bubble channel 24 and the first bubble making surface 231 of the third bubble making body 23 and the radius dimension R4 of the first bubble channel 24 of the second-stage bubble making part 2 is: 0.5R4<l<6R4, preferably: R4<l<3R4, so that when larger bubbles flow through the first bubble channel 24 and impact the first bubble making surface 231 of the third bubble making body 23, smaller bubbles can be formed.

[0036] It is worth mentioning that the shape of the first bubble-making surface 231 of the third bubble-making body 23 is not limited, for example Figure 4 The shape of the first bubble making surface 231 shown is a plane, while in other embodiments, the shape of the first bubble making surface 231 can be a cone, which is set as needed.

[0037] When the bubble generator is used, the bubble generator is immersed below the water surface, one end of an air intake pipe can be installed on the second bubble-making body 12 through the air intake pipe mounting member 15 of the first-stage bubble-making part 1 and connected to the air intake channel 14, the other end of the air intake pipe can extend above the water surface, and a water pump is connected to the first bubble-making body 11 of the first-stage bubble-making body 1, so that the water pump can enable water to flow into the first channel 111 of the first bubble-making body 11.

[0038] Specifically, when the water pump is working, the water pump can make water flow into the first channel 111 of the first bubble-making body 11 of the first-stage bubble-making part 1, so as to allow water to flow through the gas pre-storage space 13 to the second channel 121 of the second bubble-making body 12, wherein the flow rate of the water flow can be 1m3 / h-100m3 / h, preferably 10m3 / h-50m3 / h. Since the ratio range of the cross-sectional diameter parameter S1 of the first inlet 112 of the first bubble-making body 11 and the cross-sectional diameter parameter S2 of the first outlet 113 is: 36:1>S1:S2>4:1, the flow rate of the water flow from the first channel 111 of the first bubble-making body 11 into the gas pre-storage space 13 can be increased to form a high-speed water flow, at which time the high-speed water flow forms a negative pressure environment in the gas pre-storage space 13 and allows gas to enter the gas pre-storage space 13 through the air inlet pipe. Since the radius of the gas pre-storage space 13 is larger than the size of the first outlet 113 of the first bubble-making body 11 and the size of the second inlet 122 of the second bubble-making body 12, the gas pre-storage space 13 can store a portion of gas in advance, and the gas pre-storage space 13 can mix the gas and the high-speed water flow to form bubbles. It can be understood that since the gas pre-storage space 13 pre-stores a portion of gas, more gas can be mixed in the high-speed water flow to form a large number of bubbles with larger sizes. The bubbles with larger sizes formed in the gas pre-storage space 13 can successively enter the second channel 121 of the second bubble-making body 12 and the first bubble channel 24 of the second-stage bubble-making part 2, and subsequently impact the first bubble-making surface 231 of the third bubble-making body 23 to form bubbles with smaller sizes, and the bubbles with smaller sizes can further be discharged from the bubble generator through each of the second bubble channels 25 of the second-stage bubble-making part 2. Since the bubble generator is immersed below the water surface, these bubbles can float up from the bottom to the top based on buoyancy. During the floating process, on the one hand, the bubbles can bring the pollutants in the river water out of the water from the bottom to the surface, which is beneficial to the natural decomposition of the pollutants. On the other hand, the bubbles can accelerate the movement of the water in the river and further accelerate the decomposition of the pollutants in the water.

[0039] FIG. 5A to FIG. 8 Another embodiment of the bubble generator is shown, Figures 1A to 4 The bubble generator shown is different in that FIG. 5A to FIG. 8 In the embodiment of the bubble generator shown, the bubble generator further includes a third-level bubble-making section 3, the third-level bubble-making section 3 having a second bubble-making surface 31 and a bubble-making channel 32 formed by the second bubble-making surface 31, the bubble-making channel 32 passing through the opposite ends of the third-level bubble-making section 3 to make the third-level bubble-making section 3 present a cylindrical structure. One end of the third-level bubble-making section 3 is mounted on the peripheral wall 213 of the connecting member 21 of the second-level bubble-making section 2 to keep the respective mounting columns 22 and the third bubble-making body 23 of the second-level bubble-making section 2 in the bubble-making channel 32 of the third-level bubble-making section 3, and the respective second bubble channels 25 of the second-level bubble-making section 2 are aligned with the second bubble-making surface 31 of the third-level bubble-making section 3. In this way, when the smaller bubbles discharged from the second bubble making section 2 from each second bubble making channel 25 of the second bubble making section 2 impact the second bubble making surface 31 of the third bubble making section 3, they can be further crushed to form smaller micro bubbles.

[0040] It is worth mentioning that the installation method of the end of the third-level bubble-making part 3 and the peripheral wall 213 of the connecting body 21 is not restricted. For example, the end of the third-level bubble-making part 3 and the peripheral wall 213 of the second connecting body 21 can be installed by but not limited to screws.

[0041] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A bubble generator, characterized in that: The bubble generator includes a first-stage bubble-making part and a second-stage bubble-making part, the first-stage bubble-making part includes a first bubble-making body and a second bubble-making body, and the first-stage bubble-making part has a gas pre-storage space and at least one air inlet channel connected to the gas pre-storage space, the first bubble-making body has a first channel, the second bubble-making body has a second channel, the end of the first bubble-making body and the end of the second bubble-making body are installed with each other to form the gas pre-storage space between the first bubble-making body and the second bubble-making body, and the first channel of the first bubble-making body and the second channel of the second bubble-making body are connected to the gas pre-storage space at opposite sides of the gas pre-storage space respectively, and the second-stage bubble-making part includes The second-stage bubble-making part comprises a connecting body, four mounting posts and a third bubble-making body, and the second-stage bubble-making part has a first bubble channel and at least one second bubble channel connected to the first bubble channel, the first bubble channel runs through the bubble inlet side and the bubble outlet side of the connecting body, the mounting posts extend on the bubble outlet side of the connecting body at intervals to form the second bubble channel between adjacent mounting posts, the third bubble-making body is mounted on the mounting posts, and the first bubble channel faces the first bubble-making surface of the third bubble-making body, the connecting body of the second-stage bubble-making part is mounted on the second bubble-making body of the first-stage bubble-making part, and the second channel of the second bubble-making body is connected to the first bubble channel of the second-stage bubble-making part; The first channel forms a first inlet and a first outlet at opposite ends of the first bubble-making body, wherein the cross-sectional diameter parameter of the first inlet is S1, the cross-sectional diameter parameter of the first outlet is S2, and the ratio range of the cross-sectional diameter parameter S1 of the first inlet and the cross-sectional diameter parameter S2 of the first outlet is: 36:1>S1:S2>4:1; The second channel forms a second inlet and a second outlet at opposite ends of the second bubble-making body respectively; The length dimension parameter of the gas pre-storage space is L, the radius dimension parameter of the gas pre-storage space is R1, the radius dimension parameter of the second inlet of the second bubble-making body is R2, and the radius dimension parameter of the first outlet of the first bubble-making body is R3, wherein the ratio range of the length dimension parameter L of the gas pre-storage space and the radius dimension parameter R3 of the first outlet of the first bubble-making body is: 0.5R3<L<6R3, and the ratio range of the radius dimension parameter R1 of the gas pre-storage space and the radius dimension parameter R2 of the second inlet of the second bubble-making body is: R1:R2>2.

2. A bubble generator as claimed in claim 1, characterized in that: The cross-sectional diameter parameter of the second inlet is S3, and the ratio range of the cross-sectional diameter parameter S3 of the second inlet to the cross-sectional diameter parameter S2 of the first outlet is: S3:S2>1:

1.

3. A bubble generator as claimed in claim 1, characterized in that: The ratio range of the length dimension parameter L of the gas pre-storage space and the radius dimension parameter R3 of the first outlet of the first bubble-making body is: R3<L<3R3.

4. A bubble generator as claimed in any one of claims 1 to 3, characterized in that: The distance dimension parameter between the opening of the first bubble channel and the first bubble-making surface of the third bubble-making body is l, and the radius dimension parameter of the first bubble channel is R4, wherein the ratio range of the distance dimension parameter l between the opening of the first bubble channel and the first bubble-making surface of the third bubble-making body and the radius dimension parameter R4 of the first bubble channel is: 0.5R4<l<6R4.

5. A bubble generator as claimed in claim 4, characterized in that: The ratio range of the distance dimension parameter l between the opening of the first bubble channel and the first bubble making surface of the third bubble making body and the radius dimension parameter R4 of the first bubble channel is: R4<l<3R4.

6. A bubble generator as claimed in any one of claims 1 to 3, characterized in that: The bubble generator also includes a third-level bubble-making portion, which has a second bubble-making surface and a bubble-making channel formed by the second bubble-making surface, the bubble-making channel runs through the opposite ends of the third-level bubble-making portion to make the third-level bubble-making portion present a cylindrical structure, one end of the third-level bubble-making portion is installed on the peripheral wall of the connecting body of the second-level bubble-making portion to maintain each of the mounting columns of the second-level bubble-making portion and the third bubble-making body in the bubble-making channel of the third-level bubble-making portion, and each of the second bubble channels of the second-level bubble-making portion is opposite to the second bubble-making surface of the third-level bubble-making portion.

7. A bubble generator as claimed in claim 4, characterized in that: The bubble generator also includes a third-level bubble-making portion, which has a second bubble-making surface and a bubble-making channel formed by the second bubble-making surface, the bubble-making channel runs through the opposite ends of the third-level bubble-making portion to make the third-level bubble-making portion present a cylindrical structure, one end of the third-level bubble-making portion is installed on the peripheral wall of the connecting body of the second-level bubble-making portion to maintain each of the mounting columns of the second-level bubble-making portion and the third bubble-making body in the bubble-making channel of the third-level bubble-making portion, and each of the second bubble channels of the second-level bubble-making portion is opposite to the second bubble-making surface of the third-level bubble-making portion.

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