CN212017422U

CN212017422U - Micro-bubble generator

Info

Publication number: CN212017422U
Application number: CN202020571619.9U
Authority: CN
Inventors: 卢生华; 傅国栋
Original assignee: Chongqing Xinxiang Technology Co ltd
Current assignee: Chongqing Xinxiang Technology Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-27
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a micro-bubble generator, include: outer tube, air duct and honeycomb duct, the outer tube is including the section of spiraling, changeover portion, necking down section and the divergent section that connects gradually, the internal diameter of necking down section is less than the internal diameter of the section of spiraling, the air duct includes: the guide pipe is arranged in the screwing section and connected with the tapering section, and the axis of the guide pipe is in a different plane with the axis of the screwing section. The utility model provides a small bubble generator, liquid are high-speed rotation state and get into the necking down section around leading-in section, and the gas in the convergent section passes through gas pocket and liquid mixture, thereby liquid cuts gaseous shearing breakage repeatedly and generates a large amount of super small bubbles.

Description

Micro-bubble generator

Technical Field

The utility model belongs to the technical field of water treatment facilities technique and specifically relates to a micro-bubble generator is related to.

Background

The ultra-micro bubble generation technology can be divided into various technical methods such as a pressurized dissolved air outgassing method, a dispersed air method, jet aeration, an ultrasonic cavitation method, an electrolysis method and the like according to the generation principle, wherein the main principle of the dispersed air method is to form shearing force by means of hydraulic shearing, high-speed rotational flow and the like, and an extreme condition is manufactured, and air is repeatedly sheared and crushed to be mixed with water so as to generate a large amount of micro-nano bubbles. At present, a plurality of ultra-micro bubble generators are provided, but the ultra-micro bubble generators are complex in structure, high in manufacturing difficulty and high in finished product cost, and are not beneficial to popularization, and most products only consider one implementation technical means and have high requirements on hydraulic conditions, for example, the requirement on pressure is not lower than 0.5Mpa, so that the ultra-micro bubble generators are not in accordance with the advocated low energy consumption concept. When the water pressure is lower, the rotational flow speed formed by liquid is not high enough, and the shearing air effect is weakened, so that the micro bubbles generated by mixing gas and liquid are reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a micro-bubble generator to solve the technical problem that micro-bubble generator efficiency reduces when fluid pressure reduces.

In order to achieve the above object, the present invention provides a micro-bubble generator, including: outer tube, air duct and honeycomb duct, the outer tube is including the section of spiraling, changeover portion, necking down section and the divergent section that connects gradually, the internal diameter of necking down section is less than the internal diameter of the section of spiraling, the air duct includes: the guide pipe is arranged in the screwing section and connected with the tapering section, and the axis of the guide pipe is in a different plane with the axis of the screwing section.

Optionally, the inner cavity of the transition section and the inner cavity of the diffusion section are both tapered, the inner cavity of the necking section is cylindrical, the inner diameter of the diffusion section gradually increases towards the direction away from the necking section, the taper angle of the diffusion section is 6-15 degrees, and the length of the diffusion section is 10-20 times of the diameter of the necking section.

Optionally, the draft tube is vertically intersected with the rotation starting section.

Optionally, the inner diameter of the flow guide pipe is smaller than or equal to the radius of the inner hole of the spiral section.

Optionally, the outer diameter of the tapered section gradually decreases away from the lead-in section.

Optionally, the tapered section is tapered.

Optionally, the tapered section is a stepped shaft.

Optionally, a plurality of air holes are formed in the pipe wall of the tapered section in the direction away from the introduction section.

Optionally, a plurality of air holes are arranged on the pipe wall of the tapered section along the circumferential direction of the pipe wall.

Optionally, the outer sleeve and the airway tube are coaxially arranged.

The utility model provides a micro-bubble generator, include: outer tube, air duct and honeycomb duct, the outer tube is including the section of spiraling, changeover portion, necking down section and the divergent section that connects gradually, the internal diameter of necking down section is less than the internal diameter of the section of spiraling, the air duct includes: the guide pipe is arranged in the screwing section and connected with the tapering section, and the axis of the guide pipe is in a different plane with the axis of the screwing section. The utility model provides a small bubble generator, liquid are high-speed rotation state and get into the necking down section around leading-in section, and the gas in the convergent section passes through gas pocket and liquid mixture, thereby liquid cuts gaseous shearing breakage repeatedly and generates a large amount of super small bubbles.

Drawings

Fig. 1 is a schematic view of a micro-bubble generator according to an embodiment of the present invention.

Wherein: 1-outer sleeve, 101-start section, 102-transition section, 103-necking section, 104-diffusion section, 2-gas guide tube, 201-leading-in section, 202-reducing section, 203-gas hole, 3-gas guide tube, 4-gas and 5-liquid.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. Advantages and features of the present invention will become apparent from the following description and claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Fig. 1 is a schematic view of a micro-bubble generator according to an embodiment of the present invention, and referring to fig. 1, the micro-bubble generator includes: the outer sleeve 1 comprises a rotation starting section 101, a transition section 102, a necking section 103 and a diffusion section 104 which are sequentially connected. The inner cavity of the spiral segment 101 is cylindrical, the inner cavity of the transition segment 102 and the inner cavity of the diffusion segment 104 are both conical, the inner cavity of the necking segment 103 is cylindrical, the inner diameter of the necking segment 103 is smaller than that of the spiral segment 101, the inner diameter of the diffusion segment 104 is gradually increased towards the direction far away from the necking segment 103, the taper angle of the diffusion segment 104 is 6-15 degrees, and the length of the diffusion segment 104 is 10-20 times of the diameter of the necking segment 103.

The airway tube 2 comprises: the gas inlet comprises an introducing section 201 and a tapered section 202, wherein the tapered section 202 is arranged in the necking section 103, the introducing section 201 is arranged in the swirling section 101 and is connected with the tapered section 202, the introducing section 201 extends out of the swirling section 101 to serve as a gas inlet, and one end (namely the right end) of the tapered section 202 away from the introducing section 201 is closed. The outer sleeve 1 and the air duct 2 are coaxially arranged. The outer diameter of the tapered section 202 decreases gradually in the direction away from the introduction section 201, and accordingly, the inner hole of the introduction section 201 also decreases gradually. The tapered section 202 is tapered, i.e. the tapered section 202 decreases uniformly from left to right. Alternatively, the tapered section 202 is a stepped shaft, that is, the tapered section 202 is composed of a plurality of shaft sections, and the outer diameters of the shaft sections decrease from left to right section by section. The tube wall of the tapered section 103 is provided with air holes 203, the air holes 203 are distributed on the whole tapered section 103, the tube wall of the tapered section 202 is provided with a plurality of air holes 203 towards the direction far away from the leading-in section 201, and the tube wall of the tapered section 202 is provided with a plurality of air holes 203 along the circumferential direction.

The honeycomb duct 3 is a cylindrical pipeline, the honeycomb duct 3 with the section 101 that starts to revolve cross connection just the axis of honeycomb duct 3 with the axial heterofacial features of section 101 that starts to revolve. Further, the draft tube 3 is perpendicularly intersected with the start-up section 101, and the inner diameter of the draft tube 3 is smaller than or equal to the radius of an inner hole of the start-up section 101.

The liquid 5 enters the swirling area 101 from the draft tube 3, under the action of the introduction section 201 and the tangentially arranged draft tube 3, the liquid 5 rotates at a high speed and rotates around the introduction section 201 to pass through the transition section 102, and then continuously rotates to enter the necking section 103, at this time, the gas 5 (the gas can be oxygen, ozone, carbon dioxide, nitrogen, hydrogen, helium, ammonia and other suitable gases) in the tapering section 202 comes out from the gas hole 203, is mixed with the liquid and continuously rotates, and partial micro bubbles are generated. In the diffuser section 104, cavitation occurs in the gas and liquid, further generating a large number of micro-bubbles, and finally flowing out through the end of the diffuser section 104. At present super micro bubble generator can not be less than 0.5Mpa to liquid pressure requirement, the utility model provides a super micro bubble generator, outer tube 1 necking down in necking down section 103, make liquid at necking down section 103 internal flow rate increase, the convergent section 202 of air duct 2 evenly reduces in necking down section 103, can reach the automatic gaseous purpose of inspiration to the gaseous negative pressure of formation of gas in the air duct 2. Even under the condition that the water pressure is not high, the rotational flow formed by the liquid can keep high-speed rotational flow in the necking section 103, and the liquid can repeatedly shear and break the sucked gas to generate a large amount of ultrafine bubbles. The utility model discloses can satisfy the requirement of large-traffic and low lift, the flow can not have the restriction, and the lift just can have very good effect more than 0.1MPa, simultaneously the utility model discloses simple structure is difficult to the jam. Therefore, the method has wide application prospect in the aspects of pollution treatment of rivers and lakes, sewage treatment of sewage plants and the like.

In summary, an embodiment of the present invention provides a micro-bubble generator, which includes: outer tube, air duct and honeycomb duct, the outer tube is including the section of spiraling, changeover portion, necking down section and the divergent section that connects gradually, the internal diameter of necking down section is less than the internal diameter of the section of spiraling, the air duct includes: the guide pipe is arranged in the screwing section and connected with the tapering section, and the axis of the guide pipe is in a different plane with the axis of the screwing section. The utility model provides a small bubble generator, liquid are high-speed rotation state and get into the necking down section around leading-in section, and the gas in the convergent section passes through gas pocket and liquid mixture, thereby liquid cuts gaseous shearing breakage repeatedly and generates a large amount of super small bubbles.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. A micro-bubble generator, comprising: outer tube, air duct and honeycomb duct, the outer tube is including the section of spiraling, changeover portion, necking down section and the divergent section that connects gradually, the internal diameter of necking down section is less than the internal diameter of the section of spiraling, the air duct includes: the guide pipe is arranged in the screwing section and connected with the tapering section, and the axis of the guide pipe is in a different plane with the axis of the screwing section.

2. The microbubble generator as claimed in claim 1, wherein the transition section has a tapered inner cavity and the diffuser section has a tapered inner cavity, the neck section has a cylindrical inner cavity, the diffuser section has an inner diameter gradually increasing in a direction away from the neck section, the diffuser section has a taper angle of 6 to 15 degrees, and the length of the diffuser section is 10 to 20 times the diameter of the neck section.

3. The microbubble generator as set forth in claim 1, wherein the draft tube perpendicularly intersects the spinning segment.

4. The microbubble generator as set forth in claim 3, wherein the draft tube has an inner diameter less than or equal to a radius of an inner bore of the swirling section.

5. The microbubble generator as recited in claim 1, wherein an outer diameter of the tapered section is gradually reduced in a direction away from the introduction section.

6. The microbubble generator of claim 5, wherein the tapered section is tapered.

7. The microbubble generator of claim 5, wherein the tapered section is a stepped shaft.

8. The microbubble generator as recited in claim 1, wherein a plurality of air holes are provided on a wall of the tapered section in a direction away from the introduction section.

9. The microbubble generator as recited in claim 8, wherein the tapered section has a plurality of air holes formed in a wall thereof in a circumferential direction.

10. The microbubble generator of claim 1, wherein the outer sleeve and the airway tube are coaxially arranged.