CN113908710B - Micro-nano bubble generator and method - Google Patents
Micro-nano bubble generator and method Download PDFInfo
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- CN113908710B CN113908710B CN202111038824.4A CN202111038824A CN113908710B CN 113908710 B CN113908710 B CN 113908710B CN 202111038824 A CN202111038824 A CN 202111038824A CN 113908710 B CN113908710 B CN 113908710B
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Abstract
The invention relates to a micro-nano bubble generator and a method, comprising a cylinder body with an opening at one end, wherein an inner core is arranged in an inner cavity of the cylinder body, the outer diameter of the inner core is increased and then reduced along the direction far away from the center of the inner core, so that a reduced scale section and an expanded scale section are formed between the inner core and the inner wall of the cylinder body, and a bulge is formed at the boundary of the outer diameter of the inner core; the outer wall of the cylinder body is provided with an air inlet which is communicated with the air passage in the inner core, and the bulge is provided with an exhaust passage which is communicated with the inner cavity of the cylinder body and the air passage; the outer wall department of barrel has the water inlet, forms liquid inlet channel between barrel inner wall and the inner core outer wall, and liquid inlet channel and reduced scale section intercommunication. The inner core can move and be fixed along the axial direction of the cylinder body so as to change the distance between the protrusion and the inner wall of the cylinder body.
Description
Technical Field
The disclosure belongs to the technical field of bubble generators, and particularly relates to a micro-nano bubble generator and a micro-nano bubble generator method.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The micro-nano bubbles are bubbles with diameters ranging from tens of micrometers to hundreds of nanometers when the bubbles occur, and have the characteristics of large specific surface area, slow rising speed, self-pressurization dissolution, surface electrification, high gas dissolution rate and the like.
The inventor knows that the content of micro-nano bubbles in micro-nano bubble water is compared with the micro-nano bubbles before taking place, and is related to the gas content of doping in water, and the more the gas content, the more the content of micro-nano bubbles in the micro-nano bubble water that forms. The micro-nano bubble content is controlled by controlling the gas supply flow in some technical schemes, the adjustment is inconvenient, and the volume of the generator can be greatly increased.
Disclosure of Invention
The present disclosure is directed to a micro-nano bubble generator and a method thereof, which can solve at least one of the above technical problems.
In order to achieve the above object, one or more embodiments of the present disclosure provide a micro-nano bubble generator, including a cylinder, one end of the cylinder is sealed, the other end is open, an inner core is disposed in an inner cavity of the cylinder, an outer diameter of the inner core near the open end of the cylinder is increased and then decreased, so that a reduced scale section and an expanded scale section are formed between the inner core and an inner wall of the cylinder, and a conical surface protrusion is formed at a boundary between the increase and decrease of the outer diameter of the inner core;
the outer wall of the cylinder body is provided with an air inlet which is communicated with the air passage in the inner core, and an exhaust passage which is communicated with the inner cavity of the cylinder body and the air passage is arranged at the bulge of the conical surface; the outer wall of the cylinder body is provided with a water inlet which is communicated with the water channel. The inner core can move and be fixed along the axial direction of the cylinder body so as to change the distance between the protrusion and the inner wall of the cylinder body.
As a further improvement, the conical surface of the inner wall of the cylinder, which is close to one end of the opening, is a first conical surface, and the outer diameter of the first conical surface is gradually enlarged along the direction away from the center of the cylinder.
As a further improvement, the inner core comprises a core column and an end cover which are coaxially fixed, and a gap is arranged between the end cover and the core column to form the exhaust passage.
As a further improvement, the conical surface of the outer wall of the end, close to the opening, of the core column is a second conical surface, and the outer diameter of the second conical surface is gradually enlarged along the direction far away from the center of the cylinder body. The second taper diameter maximum dimension is greater than the first taper diameter minimum dimension.
As a further improvement, the outer wall conical surface of the end cover forms a third conical surface, and the outer diameter of the third conical surface is gradually reduced along the direction away from the center of the cylinder.
As a further improvement, a first annular groove communicated with the air inlet is formed in the outer wall surface of the inner core, and the first annular groove is communicated with the air passage through the air inlet.
As a further improvement, a second annular groove is formed in the outer wall surface of the inner core and communicated with the water inlet, and the second annular groove forms the liquid inlet channel.
As a further improvement, a sealing groove is arranged on the outer wall surface of the cylinder in a surrounding mode, a sealing gasket is arranged in the sealing groove, and the sealing groove is located between the first annular groove and the second annular groove and in front of the first annular groove.
As a further improvement, the sealing end of the cylinder is plugged by a cover plate, the screw penetrates through the cover plate to be matched with the end part of the core column, the core column is fixed in the cylinder, the screw is sleeved with a spring, and the core column is adjusted along the axial direction of the cylinder by adjusting the screw.
One or more embodiments of the present disclosure also provide a micro-nano bubble generating method, including the following steps:
the position of the inner core in the inner cavity of the barrel is adjusted to adjust the gap between the second conical surface and the first conical surface as well as the gap between the third conical surface and the first conical surface; so as to adjust the flow rate of the pressure water source at the gap and further adjust the amount of the external gas mixed into the pressure water source;
a pressure water source is input into the liquid inlet channel from the water inlet; the outside gas is input from the gas inlet and then is conveyed to the exhaust channel;
the pressure water source flows into the reduced scale section through the liquid inlet channel, negative pressure is formed at the reduced scale section, gas at the exhaust channel is sucked into the pressure water flow, the gas is dissolved in the water synchronously, bubbles are smashed through the shearing force of the high-speed water flow, micro-nano bubble water is formed, and the micro-nano bubble water is sprayed out from the expansion scale section.
The beneficial effects of one or more of the above technical solutions are as follows:
in the embodiment, the mode that the size of the inner core close to one end of the opening is increased and then reduced is adopted, so that a reduced scale section and an expanded scale section are conveniently formed between the inner core and the cylinder wall, a high flow speed is conveniently formed at the convex part, and then the gas at the exhaust passage in the inner core is uniformly sucked into water by utilizing the Bernoulli principle, so that good mixing is realized; compared with a mode of directly dissolving gas into water, the gas is dissolved in the water more uniformly, and the bubble water with micro-nano bubbles uniformly distributed is conveniently obtained.
Adopt the barrel to be close to the internal face of opening one end and be first conical surface, the inner core can be followed barrel axis direction and removed and fixed mode for distance between arch and the barrel internal face can be adjusted and fixed in this scheme, under the unchangeable circumstances of flow, the pressure water velocity of flow of adjusting this position, and then provide the negative pressure environment of not equidimension, be convenient for adjust from the gas volume of arch department dissolving into pressure water, be convenient for change the content of micro-nano bubble in the micro-nano bubble water.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
Fig. 1 is a schematic view of the overall structure in one or more embodiments of the present disclosure.
In the figure, 1, a cylinder; 1A, a first conical surface; 2. an end cap 2A and a third conical surface; 3. a core column, 3A, a second conical surface; 4. a screw; 4A, a large hole section; 5. a bolt; 6. a spring washer; 7. a gasket; 8. a spring; 9. an air inlet; 10. a water inlet; 11. a first ring groove; 12. a second ring groove; 13. an air inlet; 14. an airway; 15. a scale reducing section; 16. a gas storage ring groove; 17. a scale expanding section; 18. a gas temporary storage space; 19. and a cover plate.
Detailed Description
Example 1
The embodiment provides a micro-nano bubble generator, including one end open-ended barrel 1, be equipped with the inner core in the 1 inner chamber of barrel, the external diameter size who is close to the inner core of opening one end increases earlier the back and reduces to make and form reduced scale section 15 and expansion scale section 17 between inner core and the 1 inner wall of barrel, the inner core increases and forms the arch with the boundary department that reduces at the external diameter size.
The air inlet 9 is communicated with an air passage 14 in the inner core, and an exhaust passage for communicating the inner cavity of the cylinder body 1 with the air passage 14 is arranged at the bulge; a water inlet 10 is formed in the outer wall of the barrel body 1, a liquid inlet channel 12 is formed between the inner wall of the barrel body 1 and the outer wall of the inner core, and the liquid inlet channel 12 is communicated with the reduced scale section 15.
Specifically, when the air inlet 9 is connected with an external air source, and the water inlet 10 is connected with an external pressure water source, the pressure water source is introduced from the water inlet 10, and then the pressure water source is ejected from the opening of the barrel body 1 along the directions of the liquid inlet channel 12, the reduced scale section 15 and the expanded scale section 17.
Specifically, the reduced scale section 15 herein refers to a passage having a gradually decreasing cross-sectional dimension along the liquid advancing direction, and the enlarged scale section 17 refers to a passage having a gradually increasing cross-sectional dimension along the liquid advancing direction.
Specifically, the other end of the cylinder is plugged through a cover plate 19, the cover plate 19 and the cylinder are plugged through a detachable bolt, and other good sealing connection modes such as gluing can also be adopted.
In this embodiment, in order to adjust the distance between the second tapered surface 3A and the inner wall of the cylinder 1, and further adjust the flow rate of the pressurized water at the interface, the inner wall surface of the cylinder 1 near the opening end is the first tapered surface 1A, the outer diameter of the first tapered surface 1A gradually expands along the opening direction of the cylinder 1, and the inner core can move and be fixed along the axial direction of the cylinder 1, so as to change the distance between the second tapered surface 3A and the inner wall of the cylinder 1, as well as the distance between the third tapered surface 2A and the inner wall of the cylinder 1.
In order to realize the driving of the inner core along the movement of the cylinder body 1, in this embodiment, as shown in fig. 1, the left end of the cylinder body 1 is plugged by a cover plate, a screw rod 4 penetrates through the cover plate to be matched with the end part of the core column, so as to realize the fixation of the core column in the cylinder body, and the screw rod is further sleeved with a spring, so that the adjustment of the core column along the axial direction of the cylinder body is realized by adjusting the screw rod. Furthermore, a step hole is formed in the left end of the inner core, a spring 8 is arranged on the large hole section 4A of the step hole, the small hole section of the step hole is a screw hole, the screw rod 4 penetrates through the through hole in the cover plate and then is in threaded connection with the screw hole, and the spring 8 is sleeved outside the screw rod 4.
Specifically, the spring 8 provides elasticity for the inner core, so that the inner core has power moving towards the opening, and the depth of the screw rod 4 screwed into the small hole section realizes the limitation of the movement of the inner core towards the opening.
In other embodiments, the elastic force of the spring 8 can enable the inner core to have power moving away from the opening, the cover plate is provided with a threaded hole, the threaded hole is in threaded fit with the screw rod 4, and the end of the screw rod 4 is inserted into the small hole section, so that the inner core is limited moving away from the opening.
Specifically, in order to introduce the gas into the position of the conical gap and further dissolve the gas into the pressure water source under the action of negative pressure, the inner core in this embodiment includes a core column 3 and an end cap 2 which are coaxially fixed, and a gap is formed between the end cap 2 and the core column 3 to form the exhaust passage.
Specifically, the air flue 14 in the core column 3 penetrates through the end face, close to the opening, of the core column 3, the middle part, close to the end face of the core column 3, of the end cover 2 is provided with a groove to form a temporary storage space 18, the end face, close to the end cover 2, of the core column 3 is provided with an air storage ring groove 16, the air storage ring groove 16 is communicated with the temporary storage space 18, and gas in the temporary storage space 18 can enter the air storage ring groove 16 to realize temporary storage; the gas in the gas storage ring groove 16 can be discharged from the end surface gap between the end cover 2 and the core column 3.
In order to achieve the fixation of the end cap 2 and the stem 3, in the present embodiment, a bolt 5 and a spring washer 6 are connected between the end cap 2 and the stem 3.
Specifically, in order to obtain the reduced-scale section 15 and the expanded-scale section 17, a second tapered surface 3A is formed at one end of the stem 3 close to the opening of the cylinder, and the outer diameter of the second tapered surface 3A is gradually enlarged in the direction away from the center of the cylinder 1. The outer wall surface of the end cover 2 forms a third conical surface 2A, and the outer diameter of the third conical surface 2A is gradually reduced along the direction far away from the center of the cylinder 1. The minimum dimension of the first tapered surface 1A is larger than the maximum dimension of the second tapered surface 3A.
The outer wall surface of the core column 3 is provided with a first annular groove 11 communicated with the air inlet 9 in a surrounding mode, the inner core 3 is internally provided with an air passage 14 coaxial with the inner core 3, the air passage 14 is communicated with an exhaust passage, and the air passage 14 is communicated with the first annular groove 11 through an air inlet 13.
And a second annular groove 12 is formed in the outer wall surface of the inner core 3, the second annular groove 12 is communicated with the water inlet 10, and the second annular groove 12 forms the liquid inlet channel.
The outer wall surface of the cylinder body 1 is provided with a sealing groove in a surrounding way, a sealing gasket 7 is arranged in the sealing groove, and the sealing groove is positioned between the first annular groove 11 and the second annular groove 12 and in front of the first annular groove 11.
Example 2
The embodiment provides a micro-nano bubble generation method, which utilizes the micro-nano bubble generator described in embodiment 1, and comprises the following steps:
the position of the inner core 3 in the inner cavity of the cylinder 1 is adjusted to adjust the clearance between the second conical surface 3A and the third conical surface 2A and the inner wall surface of the cylinder 1; so as to adjust the flow rate of the pressure water source at the gap and further adjust the amount of the external gas mixed into the pressure water source;
the pressure water source is input into the second annular groove 12 from the water inlet 10; the outside gas is input from the gas inlet 9 and then is conveyed to the exhaust channel;
the pressure water source flows into the reducing scale section 15 through the liquid inlet channel, negative pressure is formed at the reducing scale section 15, gas at the exhaust channel is sucked into the pressure water flow, the gas is synchronously dissolved in the water, bubbles are broken through the shearing force of the high-speed water flow, micro-nano bubble water is formed, and the micro-nano bubble water is sprayed out from the expansion scale section 17.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (5)
1. A micro-nano bubble generator is characterized by comprising a cylinder, wherein one end of the cylinder is sealed, the other end of the cylinder is open, an inner core is arranged in an inner cavity of the cylinder, the outer diameter of the inner core close to the open end of the cylinder is increased and then reduced, so that a reduced scale section and an expanded scale section are formed between the inner core and the inner wall of the cylinder, and a bulge is formed at the boundary of the increased and reduced outer diameter of the inner core;
the outer wall of the cylinder body is provided with an air inlet which is communicated with the air passage in the inner core, and the bulge is provided with an exhaust passage which is communicated with the inner cavity of the cylinder body and the air passage; the outer wall of the barrel is provided with a water inlet which is communicated with the reduced scale section; the inner core can move and be fixed along the axial direction of the cylinder body so as to change the distance between the bulge and the inner wall of the cylinder body;
the inner core comprises a core column and an end cover which are coaxially fixed, and a gap is reserved between the end cover and the core column to form the exhaust channel;
the sealing end of the cylinder is plugged by a cover plate, the screw penetrates through the cover plate to be matched with the end part of the core column, so that the core column is fixed in the cylinder, the screw is sleeved with a spring, and the core column is adjusted along the axial direction of the cylinder by adjusting the screw;
the inner wall surface of one end, close to the opening, of the cylinder body is a first conical surface, and the outer diameter of the first conical surface is gradually enlarged along the direction far away from the center of the cylinder body;
the outer wall surface of the core column close to one end of the opening is a second conical surface, the outer diameter of the second conical surface is gradually enlarged along the direction far away from the center of the cylinder body, and the maximum diameter size of the second conical surface is larger than the minimum diameter size of the first conical surface;
the outer wall surface of the end cover forms a third conical surface, and the outer diameter of the third conical surface is gradually reduced along the direction away from the center of the cylinder body.
2. The micro-nano bubble generator according to claim 1, wherein a first annular groove communicated with the air inlet is formed in the outer wall surface of the inner core, and the first annular groove is communicated with the air passage through an air inlet.
3. The micro-nano bubble generator according to claim 2, wherein a second annular groove is formed in the outer wall surface of the inner core, the second annular groove is communicated with the water inlet, and the second annular groove forms the liquid inlet channel.
4. The micro-nano bubble generator according to claim 3, wherein a sealing groove is formed around the outer wall surface of the cylinder, a sealing gasket is arranged in the sealing groove, and the sealing groove is located between the first annular groove and the second annular groove.
5. A micro-nano bubble generation method is characterized in that the micro-nano bubble generator of any one of claims 1 to 4 is utilized, and the method comprises the following steps:
the position of the inner core in the inner cavity of the cylinder body is adjusted to adjust a gap between the bulge and the inner wall surface of the cylinder body, so as to adjust the flow rate of the pressure water source at the gap and further adjust the amount of gas mixed into the pressure water source by external gas;
a pressure water source is input into the liquid inlet channel from the water inlet; the outside gas is input from the gas inlet;
the pressure water source flows into the reduced scale section through the liquid inlet channel, negative pressure is formed at the reduced scale section, gas at the exhaust channel is sucked into the pressure water source, the gas is synchronously dissolved in water, bubbles are broken through the shearing force of high-speed water flow, micro-nano bubble water is formed, and the micro-nano bubble water is sprayed out from the expansion scale section.
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| CN202111038824.4A CN113908710B (en) | 2021-09-06 | 2021-09-06 | Micro-nano bubble generator and method |
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| CN113908710B true CN113908710B (en) | 2022-08-02 |
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| CN115337804B (en) * | 2022-08-15 | 2023-05-23 | 山东大学 | Micro-nano bubble preparation device and method |
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| JP2016117058A (en) * | 2014-12-17 | 2016-06-30 | 株式会社いけうち | nozzle |
| CN107737537B (en) * | 2017-09-26 | 2021-07-27 | 金锐荣贸易有限公司 | Micro-nano bubble generating device |
| CN108380067B (en) * | 2018-05-10 | 2021-06-08 | 乔登卫浴(江门)有限公司 | Micro-nano bubble structure |
| CN110548428B (en) * | 2019-09-25 | 2022-04-29 | 芜湖美的厨卫电器制造有限公司 | Micro-nano bubbler, micro-nano bubble liquid generating device and water outlet equipment |
| JP2021058847A (en) * | 2019-10-07 | 2021-04-15 | 正典 大坪 | Fine bubble generation nozzle |
| CN212017422U (en) * | 2020-04-17 | 2020-11-27 | 重庆鑫乡科技有限公司 | Micro-bubble generator |
| CN112705061A (en) * | 2020-12-31 | 2021-04-27 | 宁波筑鸿纳米科技有限公司 | Disc type ultramicro bubble generator |
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