CN212663431U - Micro-nano bubble generating device - Google Patents
Micro-nano bubble generating device Download PDFInfo
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- CN212663431U CN212663431U CN202021043442.1U CN202021043442U CN212663431U CN 212663431 U CN212663431 U CN 212663431U CN 202021043442 U CN202021043442 U CN 202021043442U CN 212663431 U CN212663431 U CN 212663431U
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Abstract
The utility model discloses a micro-nano bubble generating device, which comprises a frame, a micro-nano bubble generator arranged on the frame, a liquid conveying part and a gas conveying part which are connected with the micro-nano bubble generator, wherein the micro-nano bubble generator comprises a gas-liquid mixing part and a microbubble generating part connected with the gas-liquid mixing part; the gas-liquid mixing part comprises a gas-liquid mixing cavity, a double-flow nozzle is arranged in the gas-liquid mixing cavity, the liquid conveying part and the gas conveying part are respectively connected with the input end of the double-flow nozzle, and a cutting knife for mixing gas and liquid is arranged in the gas-liquid mixing cavity; the inner surface of the cavity of the gas-liquid mixing cavity is a curved surface, and a plurality of turbulence strips are arranged on the inner surface of the cavity. The utility model provides a micro-nano bubble generating device with multistage cutting mixed function.
Description
Technical Field
The utility model relates to a purification treatment field, concretely relates to micro-nano bubble generating device.
Background
Micro-Nano bubbles (Micro Nano bubbles) are ultrafine bubbles existing in water. The phenomenon of bubble formation, which is encountered in nature, can form bubbles of different shapes and sizes when gas is subjected to a cutting force in liquid. The micro-nano bubble generation technology is generated in the later stage of 90 s in the 20 th century, advanced development is made in Japan in the early stage of the 21 st century, and micro-nano bubbles can be generated under certain conditions by the methods of rotary shearing, pressurized dissolution, electrochemistry, micropore pressurization, mixed jet flow and the like.
The gas-liquid interface exists around the bubbles in the water, and the existence of the gas-liquid interface enables the bubbles to be under the action of the surface tension of the water. For bubbles with spherical interfaces, surface tension can compress the gas within the bubble, thereby dissolving more of the gas within the bubble into the water. According to the young-laplace equation, P =2 σ/r, P represents the value of the pressure rise, σ represents the surface tension, and r represents the bubble radius. Bubbles with a diameter above 0.1mm are subjected to negligible pressure, whereas micro-bubbles with a diameter of 10 μm are subjected to a pressure of 0.3 atm, whereas bubbles with a diameter of 1 μm are subjected to a pressure of up to 3 atm. The dissolving of micro-nano bubbles in water is a process that bubbles gradually decrease, the dissolving speed of gas can be increased by the rising of pressure, along with the increase of the specific surface area, the speed that the bubbles shrink can become faster and faster, so that the micro-nano bubbles are finally dissolved in water, and theoretically, the pressure borne by the micro-nano bubbles is infinite when the micro-nano bubbles are about to disappear.
Microbubbles, which are useful for water treatment and semiconductor cleaning, are described, for example, in microbubbles, the basis of nanobubbles and their use in washing, published by the high bridge of the japanese industrial base complex institute, which is disclosed in the journal of the chinese laundry industry, industrial and institutional cleaning, for example. Microbubbles continue to shrink in water until they disappear, and nanobubbles are widely regarded as remnants of microbubbles.
The micro-nano bubble generating device in the prior art generates micro-nano bubbles only by stirring and cutting gas and liquid in a mixing cavity; however, the generation efficiency of only mixing nano bubbles once is not high, and the mixing cavity of the tube structure adopted in the prior art cannot effectively improve the mixing turbulence of gas and liquid. Therefore, it is necessary to develop a micro-nano bubble generating device capable of effectively improving gas-liquid mixing performance.
Disclosure of Invention
The utility model overcomes prior art's is not enough, provides a micro-nano bubble generating device with multistage cutting mixed function.
In order to achieve the purpose, the utility model adopts the technical proposal that; a micro-nano bubble generating device comprises a rack, a micro-nano bubble generator arranged on the rack, and a liquid conveying part and a gas conveying part which are connected with the micro-nano bubble generator, wherein the micro-nano bubble generator comprises a gas-liquid mixing part and a micro-bubble generating part connected with the gas-liquid mixing part; the gas-liquid mixing part comprises a gas-liquid mixing cavity, the gas-liquid mixing cavity is connected with a double-flow nozzle, the liquid conveying part and the gas conveying part are respectively connected with the input end of the double-flow nozzle, and a cutting knife for mixing gas and liquid is arranged in the gas-liquid mixing cavity; the inner surface of the cavity of the gas-liquid mixing cavity is a curved surface, and a plurality of turbulence strips are arranged on the inner surface of the cavity.
In a preferred embodiment of the present invention, the micro-bubble generating part comprises a micro-bubble generating cavity with a spherical structure and a stirring paddle arranged in the micro-bubble generating cavity, the stirring paddle is driven to rotate by an external motor, and a micro-bubble nozzle is arranged at one end of the micro-bubble generating cavity; the microbubble generation cavity is also connected with the gas-liquid mixing cavity and the gas transmission part.
In a preferred embodiment of the present invention, the liquid transfer part includes a liquid inlet chamber communicating with a lower portion of the gas-liquid mixing chamber, and a filter part is provided at a liquid inlet of the liquid inlet chamber.
In a preferred embodiment of the present invention, the liquid transfer portion includes a liquid inlet chamber communicating with the dual-flow nozzle in the gas-liquid mixing chamber, the liquid inlet of the liquid inlet chamber is connected with a water inlet pipe, and the water inlet pipe is provided with a water inlet pump.
In a preferred embodiment of the present invention, the gas delivery portion includes a bellows disposed at an upper portion of the gas-liquid mixing chamber, the bellows is provided with a second impeller therein, and a first bleed pipe of the bellows communicates with the dual-flow showerhead.
In a preferred embodiment of the present invention, the second air-introducing pipe of the air box is connected to the microbubble generating part; the gas-liquid mixing cavity introduces a gas-liquid mixture into the microbubble generating part through the gas-liquid guide pipe.
In a preferred embodiment of the present invention, a driving motor is disposed on the gas-liquid mixing portion, and a rotating shaft of the driving motor extends into the gas-liquid mixing chamber after passing through the bellows; one end of the rotating shaft penetrating through the air box is provided with a second impeller in a driving way; and a cutting knife is arranged on the part of the rotating shaft extending into the gas-liquid mixing cavity.
In a preferred embodiment of the present invention, the first impeller is driven by a rotating shaft of the driving motor inserted into one end of the liquid inlet chamber or the gas-liquid mixing chamber.
According to the micro-nano bubble generating device disclosed by the embodiment, the beneficial effects that are achieved are that:
a micro-nano bubble generating device with a multi-stage cutting and mixing function. Through being provided with gas-liquid mixture portion and the microbubble emergence portion of being connected with gas-liquid mixture portion, realize multistage mixture, promoted micro-nano bubble generator's mixing performance. And then a curved surface structure in the cavity of the gas-liquid mixing cavity, a plurality of turbulence strips arranged on the inner surface of the cavity and a microbubble generation cavity with a shape structure are utilized to perform turbulence so as to improve the gas-liquid mixing performance.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 is a schematic external structural view according to a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural view according to a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure diagram according to the second embodiment of the present invention;
fig. 4 is a schematic cross-sectional structure diagram according to a third embodiment of the present invention;
in the figure, 1-a frame, 2-a liquid conveying part, 20-a liquid inlet cavity, 21-a filtering part, 22-a first impeller, 23-a water inlet pump, 3-a gas-liquid mixing part, 30-a gas-liquid mixing cavity, 31-a cutting knife, 32-a double-flow nozzle, 4-a gas conveying part, 40-a wind box, 401-a second impeller, 41-a gas inlet pipe, 42-a first gas guide pipe, 43-a second gas guide pipe, 44-a driving motor, 6-a microbubble generating part, 60-a microbubble generating cavity, 61-a gas-liquid guide pipe, 62-a microbubble nozzle, 63-a base, 64-a stirring paddle, 7 turbulence strips and 8-valves.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention.
Example one
As shown in fig. 1 and 2, the micro-nano bubble generating device comprises a frame, a micro-nano bubble generator arranged on the frame 1, a liquid conveying part 2 and a gas conveying part 4 connected with the micro-nano bubble generator, wherein the micro-nano bubble generator comprises a gas-liquid mixing part 3 and a microbubble generating part 6 connected with the gas-liquid mixing part 3.
Specifically, the liquid transfer part 2 includes a liquid inlet chamber 20 disposed at a lower portion of the gas-liquid mixing chamber 30, and a liquid inlet of the liquid inlet chamber 20 is provided with a filter part 21. The gas conveying part 4 comprises a wind box 40 arranged at the upper part of the gas-liquid mixing cavity 30, a second impeller 401 is arranged in the wind box 40, and a first air guide pipe 42 of the wind box 40 is connected with the liquid mixing part 3. The second bleed air duct 43 of the air box 40 is connected to the microbubble generator 6.
Specifically, the liquid mixing portion 3 includes a gas-liquid mixing chamber 30 connected to the liquid transfer portion 2 and the gas transfer portion 4, and the gas-liquid mixing chamber 30 is an inner chamber of a gourd-shaped structure or an 8-shaped structure, but is not limited thereto and an inner chamber of a spherical structure may be used in other embodiments. The inner surface of the gas-liquid mixing cavity 30 is a curved surface, and a plurality of turbulence strips 7 are arranged on the inner surface of the cavity. The gas-liquid mixing chamber 30 introduces the gas-liquid mixture into the microbubble generation section 6 through the gas-liquid introduction pipe 61.
A double-flow spray head 32 is arranged at the lower part in the gas-liquid mixing cavity 30, and the input end of the double-flow spray head 32 is connected with a first air-entraining pipe 42 and a liquid discharge pipe of the liquid conveying part 2 for outputting liquid; the output end of the double-flow nozzle 32 is connected with the inside of the gas-liquid mixing chamber 30. The gas-liquid mixing chamber 30 is also internally provided with a cutter 31 for mixing gas and liquid and an impeller 22 for generating negative pressure. Further, the water outlet end of the filter part 21 of the liquid conveying part 2 is connected with the input end of the double-flow nozzle 32 through a liquid discharge pipe; the water inlet end of the filtering part 21 is connected with an external water pipe.
The microbubble generating part 6 comprises a microbubble generating cavity 60 with a spherical structure and a stirring paddle 64 arranged in the microbubble generating cavity 60, the stirring paddle 64 is driven to rotate by a motor arranged outside the microbubble generating cavity 60, and one end of the microbubble generating cavity 60 is provided with a microbubble nozzle 62; the microbubble generation chamber 60 is connected with the gas-liquid mixing chamber 30 through a gas-liquid guide pipe 61; the microbubble generation chamber 60 is connected to the gas delivery part 4 through the second bleed air tube 43. The micro-bubble spraying head 62 can adopt a spraying head structure in the prior art and is used for dispersing and spraying the gas-liquid mixture generated by the micro-bubble generating chamber 60. In other embodiments, a booster pump of the prior art can be connected to the microbubble generating chamber 60 to further increase the ejection force of the dispersed ejection of the gas-liquid mixture in the microbubble generating chamber 60.
A driving motor 44 is arranged on the gas-liquid mixing part, and a rotating shaft of the driving motor 44 penetrates through the air box 40 and then extends into the gas-liquid mixing cavity 30; one end of the rotating shaft penetrating through the air box 40 is provided with a second impeller 401 in a driving way; the portion of the shaft extending into the gas-liquid mixing chamber 30 is provided with a cutting blade 31. The rotating shaft is sealed and pivotally connected through a sealing bearing member in the prior art when penetrating into the gas-liquid mixing chamber 30 and the air box 40, respectively. When the rotating shaft is connected to the gas-liquid mixing chamber 30 and the air box 40, a shaft sealing device in the prior art, for example, a mechanical sealing device, may be used. The shaft sealing device in the prior art can realize sealing while meeting the requirement of pivoting connection, and prevents internal substances from leaking out along the circumferential gap of the rotating shaft.
Example two
On the basis of the first embodiment, as shown in fig. 3, the first impeller 22 is arranged at one end of the rotating shaft of the driving motor 44 penetrating into the liquid inlet cavity 20; the rotating shafts are sealed and pivotally connected through a shaft sealing device in the prior art when respectively penetrating into the gas-liquid mixing chamber 30, the air box 40 and the liquid inlet chamber 20.
EXAMPLE III
On the basis of the first embodiment, as shown in fig. 4, the liquid delivery part 2 adopts a liquid inlet chamber 20 communicated with the lower part of the gas-liquid mixing chamber 30, a liquid inlet of the liquid inlet chamber 20 is connected with a water inlet pipe, and a water inlet pump 23 is arranged on the water inlet pipe. Liquid is pumped in through the intake pump 23.
The working principle is as follows:
as shown in fig. 1 to 4, the gas and the liquid are mixed by the combination of the liquid transfer part 2, the gas transfer part 4, and the two-fluid nozzle 32, introduced into the gas-liquid mixing chamber 30, and then mixed and cut again by the cutting blade 31 in the gas-liquid mixing chamber 30. Then, the gas-liquid mixture is introduced into the microbubble generation chamber 60 through the gas-liquid introduction pipe 61, and the mixed liquid of the cutting gas and the liquid is mixed again by the stirring paddle 64 rotating in the microbubble generation chamber 60. And then discharged through the micro bubble jet head 62.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a micro-nano bubble generating device, includes the frame to and the micro-nano bubble generator of setting in the frame, and the liquid transfer portion and the gas transfer portion that micro-nano bubble generator connects, its characterized in that: the micro-nano bubble generator comprises a gas-liquid mixing part and a micro-bubble generating part connected with the gas-liquid mixing part; the gas-liquid mixing part comprises a gas-liquid mixing cavity, the gas-liquid mixing cavity is connected with a double-flow nozzle, the liquid conveying part and the gas conveying part are respectively connected with the input end of the double-flow nozzle, and a cutting knife for mixing gas and liquid is arranged in the gas-liquid mixing cavity; the inner surface of the cavity of the gas-liquid mixing cavity is a curved surface, and a plurality of turbulence strips are arranged on the inner surface of the cavity.
2. The micro-nano bubble generating device according to claim 1, wherein; the microbubble generating part comprises a microbubble generating cavity with a spherical structure and a stirring paddle arranged in the microbubble generating cavity, the stirring paddle is driven to rotate by an external motor, and one end of the microbubble generating cavity is provided with a microbubble nozzle;
the microbubble generation cavity is also connected with the gas-liquid mixing cavity and the gas transmission part.
3. The micro-nano bubble generating device according to claim 2, wherein; the liquid conveying part comprises a liquid inlet cavity communicated with the lower part of the gas-liquid mixing cavity, and a filtering part is arranged on a liquid inlet of the liquid inlet cavity.
4. The micro-nano bubble generation device according to claim 3, wherein; the liquid conveying part comprises a liquid inlet cavity communicated with a double-flow spray head in the gas-liquid mixing cavity, a liquid inlet of the liquid inlet cavity is connected with a water inlet pipe, and a water inlet pump is arranged on the water inlet pipe.
5. The micro-nano bubble generating device according to claim 4, wherein; the gas conveying part comprises a bellows arranged at the upper part of the gas-liquid mixing cavity, an impeller II is arranged in the bellows, and a first air guide pipe of the bellows is communicated with the double-flow spray head.
6. The micro-nano bubble generating device according to claim 5, wherein; the second air-entraining pipe of the air box is connected with the micro-bubble generating part; the gas-liquid mixing cavity introduces a gas-liquid mixture into the microbubble generating part through the gas-liquid guide pipe.
7. The micro-nano bubble generating device according to claim 6, wherein; a driving motor is arranged on the gas-liquid mixing part, and a rotating shaft of the driving motor penetrates through the air box and then extends into the gas-liquid mixing cavity; one end of the rotating shaft penetrating through the air box is provided with a second impeller in a driving way; and a cutting knife is arranged on the part of the rotating shaft extending into the gas-liquid mixing cavity.
8. The micro-nano bubble generation device according to claim 7, wherein; and the rotating shaft of the driving motor penetrates through one end of the liquid inlet cavity or the gas-liquid mixing cavity and is provided with a first impeller in a driving manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021043442.1U CN212663431U (en) | 2020-06-09 | 2020-06-09 | Micro-nano bubble generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021043442.1U CN212663431U (en) | 2020-06-09 | 2020-06-09 | Micro-nano bubble generating device |
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| CN212663431U true CN212663431U (en) | 2021-03-09 |
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| CN202021043442.1U Active CN212663431U (en) | 2020-06-09 | 2020-06-09 | Micro-nano bubble generating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904409A (en) * | 2022-05-31 | 2022-08-16 | 淮阴工学院 | Preparation method and preparation device of bubbles in cooling liquid of numerical control machine tool |
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2020
- 2020-06-09 CN CN202021043442.1U patent/CN212663431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904409A (en) * | 2022-05-31 | 2022-08-16 | 淮阴工学院 | Preparation method and preparation device of bubbles in cooling liquid of numerical control machine tool |
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