CN112705060A - Rotary multi-diameter bubble generating device - Google Patents
Rotary multi-diameter bubble generating device Download PDFInfo
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- CN112705060A CN112705060A CN202011484090.8A CN202011484090A CN112705060A CN 112705060 A CN112705060 A CN 112705060A CN 202011484090 A CN202011484090 A CN 202011484090A CN 112705060 A CN112705060 A CN 112705060A
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- Prior art keywords
- bubble
- connector
- end cover
- boss
- air cavity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/2366—Parts; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The invention relates to a rotary multi-diameter bubble generating device, which comprises a bubble generating end cover, an air cavity connector, a connector fixing block and a clamping fixing ring, wherein a plurality of bubble connectors with different diameters are uniformly distributed on a first end surface of the bubble generating end cover around the circle center of the bubble generating end cover, the connector fixing block is arranged on the air cavity connector, the bubble generating end cover is arranged on the air cavity connector, the first end surface of an end cover mounting groove in the bubble generating end cover is superposed with the first end surface of a connector boss in the air cavity connector, an end cover gasket is arranged at the lower end of the outer edge of the bubble generating end cover, the lower end of the bubble generating end cover is in threaded connection with the connector fixing block, the clamping fixing ring is arranged at the lower end of the bubble. The invention can connect the boss of the connector with the bubble connectors with different diameters by rotating the air cavity connector, thereby not only manufacturing single bubbles with different diameters, but also reducing the experiment cost and improving the experiment efficiency.
Description
Technical Field
The invention belongs to the technical field of bubble generating devices, and particularly relates to a rotary multi-diameter bubble generating device.
Background
The gas dynamics mainly studies the motion characteristics, morphological changes and corresponding mechanical essence of gas in liquid, and the problems of the directional study are widely existed in engineering practice. The research on the growth and movement modes of the bubbles in the liquid can be used for analyzing the bubble inclusion mode, the cavitation and cavitation phenomena, the engineering noise problem and the like in the liquid. In engineering practice, the study of the state of gas in hydraulic oil is a key research in the direction of hydraulic pressure. Based on this, it is necessary to study bubbles for industrial oils.
In current experimental research, the size of the bubble is controlled by adjusting the air intake quantity. The commonly adopted bubble generating device has the problems that single bubbles are difficult to manufacture, the size of the manufactured bubbles is limited, the mechanism is complicated, and the diameter-variable equipment is difficult to replace in the test. The minimum size of the manufactured bubbles is influenced by the aperture of the bubble generation joint, and corresponding lubrication and assistance are required for replacement or adjustment of mechanical equipment in the experiment. When relevant laboratory bench is built, the bubble-making connects because the problem of arranging is often placed in the bottom half, is difficult to change the bubble of different diameters and takes place to connect in the experiment goes on, and changes and need pour out the fluid, has increased the experiment loss. In response to these experimental problems, improvements in bubble generation joints are essential.
Disclosure of Invention
In view of the above circumstances, the present invention provides a rotary multi-diameter bubble generation device, which can connect a boss of a connector with bubble connectors of different diameters by rotating an air cavity connector, so as to manufacture single bubbles of different diameters, which is beneficial to reduce the frequency of equipment replacement, save the loss of fluid, reduce the experiment cost, and improve the experiment efficiency.
The invention adopts the technical scheme that the rotary multi-diameter bubble generating device comprises a bubble generating end cover, an air cavity connector, a connector fixing block and a clamping fixing ring, wherein a plurality of bubble connectors with different diameters are uniformly distributed on a first end surface of the bubble generating end cover around the circle center of the bubble generating end cover, each bubble connector is provided with a bubble boss and a bubble outlet, the end surface of each bubble boss is in a trapezoidal section shape, each bubble outlet is arranged on each bubble boss, a bubble boss through hole is arranged in the middle of each bubble boss, the first end of each bubble boss through hole is communicated with an end cover mounting groove arranged on the first end surface of the bubble generating end cover, and the second end of each bubble boss through hole is communicated with the corresponding bubble outlet; the middle part of the first end of the air cavity connector is provided with a connector cavity, the first end face of the air cavity connector is provided with a connector boss, the middle position of the connector boss is provided with a connector boss through hole, the connector boss through hole is communicated with the connector cavity, the middle of the second end face of the air cavity connector is provided with a first through hole, the end face of the first through hole is in a trapezoidal section shape, the first through hole is communicated with the connector cavity, the outer arc surface of the air cavity connector is provided with an annular sealing groove, and a sealing ring is arranged on the annular sealing groove; the connector fixed block is located on the air cavity connector, just the outer terminal surface under along of air cavity connector with the upper surface laminating of connector fixed block, the bubble takes place the end cover and locates on the air cavity connector, the first terminal surface of end cover mounting groove in the bubble takes place the end cover with the first terminal surface coincidence of connector boss in the air cavity connector, just the outer end along of end cover is taken place to the bubble is equipped with the end cover packing ring, the lower extreme of end cover takes place to the bubble with connector fixed block threaded connection, press from both sides tight solid fixed ring and locate the lower extreme of end cover takes place to the bubble, just press from both sides tight solid fixed ring with end cover threaded connection takes place to the bubble.
Furthermore, 6 bubble connectors with different diameters are uniformly distributed on the bubble generation end cover, and the inner diameter range of a bubble outlet in the 6 bubble connectors is 0.1mm-0.6 mm.
Furthermore, the air cavity connector rotates around the bubble generation end cover, so that a connector boss on the air cavity connector is communicated with the bubble connectors with different diameters on the bubble generation end cover.
Preferably, the diameters of the bubble boss through holes in the 6 bubble joints are the same, and the diameter of the bubble boss through hole is larger than the inner diameter of the bubble outlet.
Preferably, the bubble generation end cover and the first end face of the clamping and fixing ring are respectively provided with an inner diameter value corresponding to bubble joints with different diameters.
The invention has the characteristics and beneficial effects that:
1. the rotary multi-diameter bubble generating device provided by the invention can be used for connecting the lug bosses of the connecting heads with bubble joints with different diameters by rotating the air cavity connecting heads on the basis of not disassembling the experiment table, so that single bubbles with different diameters can be manufactured.
2. The rotary multi-diameter bubble generating device provided by the invention can realize the generation of monomer bubbles by controlling the air inflow, and can observe and measure the bubble generation behavior by adopting the transparent box body, so that the efficiency in the related experiment research process of gas dynamics is improved, and the application field is widened.
3. The rotary multi-diameter bubble generating device provided by the invention is beneficial to reducing the equipment replacement frequency, saving the loss of fluid, reducing the experiment cost, improving the experiment efficiency, and having the advantages of simple structure, strong operability, high practicability and the like.
4. According to the rotary multi-diameter bubble generating device, when an experiment aiming at oil is carried out, an oil film can be formed between the bubble generating end cover and the air cavity connector to lubricate the bubble generating device, so that the abrasion caused by adjusting the bubble generating diameter is reduced, and the service life is prolonged.
5. The rotary multi-diameter bubble generating device provided by the invention can be suitable for different experimental box bodies by adjusting the threaded connection depth between the air cavity connector and the bubble generating end cover, has certain replaceability, widens the application field and reduces the experimental cost.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall cross-sectional view of the present invention;
FIG. 3 is a schematic view of the bubble generating end cap of the present invention;
FIG. 4 is a cross-sectional view of a bubble-generating end cap of the present invention;
FIG. 5 is a schematic view of the air cavity connector structure of the present invention;
FIG. 6 is a cross-sectional view of an air cavity connector of the present invention;
FIG. 7 is a schematic view of the clamp and retainer ring configuration of the present invention;
fig. 8 is a front view of the clamp and securement ring of the present invention.
The main reference numbers:
a bubble generation end cap 1; a bubble joint 11; a bubble boss 111; a bubble outlet 112; a bubble boss through hole 113; an end cover mounting groove 12; an air cavity connector 2; a connector cavity 21; a connector boss 22; connector boss through hole 221; a first through hole 23; an annular seal groove 24; a connector fixing block 3; a clamping and fixing ring 4; a seal ring 5; end cap gasket 6.
Detailed Description
The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.
The invention provides a rotary multi-diameter bubble generating device, which comprises a bubble generating end cover 1, an air cavity connector 2, a connector fixing block 3 and a clamping fixing ring 4, as shown in figures 1 and 2.
As shown in fig. 3, a plurality of bubble joints 11 with different diameters are uniformly distributed on the first end surface of the bubble generation end cover 1 around the circle center of the bubble generation end cover 1, each bubble joint 11 is provided with a bubble boss 111 and a bubble outlet 112, the end surface of the bubble boss 111 is in a trapezoid cross-section shape, the bubble outlet 112 is arranged on the bubble boss 111, a bubble boss through hole 113 is arranged at the middle position of the bubble boss 111, the first end of the bubble boss through hole 113 is communicated with the end cover mounting groove 12 arranged on the first end surface of the bubble generation end cover 1, and the second end of the bubble boss through hole 113 is communicated with the bubble outlet 112.
Preferably, the material of the air cavity connector is metal material with the compressive strength of 300-500 MPa.
As shown in fig. 3, the bubble generating end cap 1 is uniformly provided with 6 bubble joints 11 with different diameters, and the inner diameter range of the bubble outlet 112 in the 6 bubble joints 11 is 0.1mm-0.6 mm.
As shown in fig. 4, the diameters of the bubble boss through holes 113 in the 6 bubble joints 11 are all the same, and the diameter of the bubble boss through hole 113 is larger than the inner diameter of the bubble outlet 112.
As shown in fig. 5 and 6, the middle part of the first end of the air cavity connector 2 is provided with a connector cavity 21, the first end face of the air cavity connector 2 is provided with a connector boss 22, the middle position of the connector boss 22 is provided with a connector boss through hole 221, the connector boss through hole 221 is communicated with the connector cavity 21, the middle of the second end face of the air cavity connector 2 is provided with a first through hole 23, the end face of the first through hole 23 is in a trapezoidal section shape, the first through hole 23 is communicated with the connector cavity 21, the outer arc surface of the air cavity connector 2 is provided with an annular sealing groove 24, and a sealing ring 5 is arranged on the annular sealing groove. The sealing ring 5 ensures that the experimental fluid cannot flow downwards to cause pollution after being fully soaked in the gap at the upper part of the air cavity connector 2, and simultaneously a certain amount of fluid or oil is kept to be used for lubricating the air bubble generation end cover 1 and the air cavity connector 2.
The distance between the upper end face of the connector boss 22 and the first end face of the air cavity connector 2 is 3-5 mm.
As shown in fig. 1, the connector fixing block 4 is disposed on the air cavity connector 2, and the outer edge lower end surface of the air cavity connector 2 is attached to the upper surface of the connector fixing block 4, the attachment position has no gap and no vertical position deviation, the bubble generation end cover 1 is disposed on the air cavity connector 2, the first end surface of the end cover mounting groove 12 in the bubble generation end cover 1 coincides with the first end surface of the connector boss 22 in the air cavity connector 2, and the outer edge lower end of the bubble generation end cover 1 is provided with the end cover gasket 6, the lower end of the bubble generation end cover 1 is in threaded connection with the connector fixing block 4, the clamping fixing ring 5 is disposed at the lower end of the bubble generation end cover 1, and the clamping fixing ring 5 is.
The air cavity connector 2 rotates around the bubble generation end cap 1, so that the connector boss 22 on the air cavity connector 2 can be communicated with the bubble connectors 11 with different diameters on the bubble generation end cap 1.
As shown in fig. 7 and 8, the bubble generation end cap 2 and the first end surface of the clamp fixing ring 1 are provided with inner diameter values corresponding to the bubble nipples 11 having different diameters.
The method comprises the following specific operation steps:
as shown in figure 1, in the rotary multi-diameter bubble generating device, when a related experiment is started, a bubble generating end cover 1 is arranged at a hole at the bottom of a liquid container, an end cover gasket 6 is additionally arranged between a box body bottom plate and the bubble generating end cover 1, the sealing after the installation and locking is ensured, and fluid is prevented from flowing out of a box body. Secondly will press from both sides tight fixed ring 4 and bubble and take place the overhanging part of end cover 1 and pass through threaded connection and locking, the upper surface of air cavity connector 2 and the lower surface laminating of bubble generation end cover 1, install sealing washer 5 on the annular seal groove 24 of air cavity connector 2 simultaneously to guarantee that the experimental fluid can not flow out downwards and cause the pollution after flooding air cavity connector 2 upper portion gap, keep a certain amount of fluid or fluid simultaneously so as to do the lubrication between bubble generation end cover 1 and the air cavity connector 2. And then the connector fixing block 3 is used for fixing, and the connector fixing block 3 is in threaded connection with the bubble generation end cover 1.
When the related experiment is performed, the connector boss 22 can be communicated with the bubble connectors 11 of different diameters by rotating the direction of the air chamber connector 2, so as to perform the function of generating bubbles of different diameters. Meanwhile, under the opaque state of the experimental fluid, the marking marks on the bubble generation end cover 1 and the clamping and fixing ring 4 can be observed so as to determine the size of the bubble joint 11 connected with the joint boss 22 in the air cavity connector 2 and be used for manufacturing bubbles with different diameters.
The rotary multi-diameter bubble generating device provided by the invention can realize the generation of micro bubbles with various diameters on the basis of not clearing the fluid in the box body and detaching a bottom appliance by arranging the bubble joints with different diameters. Meanwhile, the bubble generating device can realize the generation of monomer bubbles by controlling the air input, and can observe and measure the bubble generation behavior by adopting the transparent box body, thereby improving the efficiency in the related experiment research process of gas dynamics, widening the application field, reducing the loss of experiment fluid and saving the experiment cost.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (5)
1. A rotary multi-diameter bubble generating device is characterized by comprising a bubble generating end cover, an air cavity connector, a connector fixing block and a clamping fixing ring,
the bubble generation end cover comprises a bubble generation end cover and is characterized in that a plurality of bubble joints with different diameters are uniformly distributed on a first end face of the bubble generation end cover around the circle center of the bubble generation end cover, each bubble joint is provided with a bubble boss and a bubble outlet, the end face of each bubble boss is in a trapezoidal section shape, the bubble outlet is formed in each bubble boss, a bubble boss through hole is formed in the middle of each bubble boss, the first end of each bubble boss through hole is communicated with an end cover mounting groove formed in the first end face of the bubble generation end cover, and the second end of each bubble boss through hole is communicated with the corresponding bubble outlet;
the middle part of the first end of the air cavity connector is provided with a connector cavity, the first end face of the air cavity connector is provided with a connector boss, the middle position of the connector boss is provided with a connector boss through hole, the connector boss through hole is communicated with the connector cavity, the middle of the second end face of the air cavity connector is provided with a first through hole, the end face of the first through hole is in a trapezoidal section shape, the first through hole is communicated with the connector cavity, the outer arc surface of the air cavity connector is provided with an annular sealing groove, and a sealing ring is arranged on the annular sealing groove;
the connector fixing block is arranged on the air cavity connector, the lower end face of the outer edge of the air cavity connector is attached to the upper surface of the connector fixing block, the bubble generation end cover is arranged on the air cavity connector, the first end face of an end cover mounting groove in the bubble generation end cover is overlapped with the first end face of a connector boss in the air cavity connector, an end cover gasket is arranged at the lower end of the outer edge of the bubble generation end cover, and the lower end of the bubble generation end cover is in threaded connection with the connector fixing block;
the clamping and fixing ring is arranged at the lower end of the bubble generation end cover, and the clamping and fixing ring is in threaded connection with the bubble generation end cover.
2. The rotary multi-diameter bubble generating device according to claim 1, wherein 6 bubble joints with different diameters are uniformly distributed on the bubble generating end cap, and the inner diameter range of the bubble outlet of the 6 bubble joints is 0.1mm-0.6 mm.
3. The rotary multi-diameter bubble generating device according to claim 1, wherein the air cavity connector rotates around the bubble generating end cap, enabling the connector boss on the air cavity connector to communicate with the bubble connectors with different diameters on the bubble generating end cap.
4. The rotary multi-diameter bubble generating device according to claim 2, wherein the diameters of the bubble boss through holes in the 6 bubble joints are the same, and the diameter of the bubble boss through hole is larger than the inner diameter of the bubble outlet.
5. The rotary multi-diameter bubble generating device according to claim 1, wherein the bubble generating end cap and the first end surface of the clamping and fixing ring are provided with inner diameter values corresponding to bubble joints with different diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011484090.8A CN112705060B (en) | 2020-12-15 | 2020-12-15 | Rotary multi-diameter bubble generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011484090.8A CN112705060B (en) | 2020-12-15 | 2020-12-15 | Rotary multi-diameter bubble generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112705060A true CN112705060A (en) | 2021-04-27 |
| CN112705060B CN112705060B (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011484090.8A Active CN112705060B (en) | 2020-12-15 | 2020-12-15 | Rotary multi-diameter bubble generating device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013062226A1 (en) * | 2011-10-27 | 2013-05-02 | 한국에너지기술연구원 | Dynamic gas distributer and bubble tower reactor using same |
| US20160317987A1 (en) * | 2015-04-30 | 2016-11-03 | Ransom Man Pan LEE | Micro-bubble generator for showerhead |
| CN106994305A (en) * | 2017-03-31 | 2017-08-01 | 浙江理工大学 | It is adjustable into the Liqiud-gas mixing device of Air Bubble Size |
| US20170326511A1 (en) * | 2014-10-27 | 2017-11-16 | Sami Shamoon College Of Engineering (R.A.) | Bubble generator |
| CN208990587U (en) * | 2018-08-02 | 2019-06-18 | 浙江中寰环保科技有限公司 | Micro-nano bubble generator |
| US20190201855A1 (en) * | 2016-01-29 | 2019-07-04 | Richard LADOUCEUR | Rotary gas bubble ejector |
| US20190330829A1 (en) * | 2018-04-27 | 2019-10-31 | Ching-Yuan Juan | Micro bubble generating device |
| CN110433678A (en) * | 2019-09-12 | 2019-11-12 | 上海行恒科技有限公司 | The micro-nano bubble generator of duct type |
| CN111206380A (en) * | 2018-11-21 | 2020-05-29 | 无锡小天鹅电器有限公司 | Cavitation piece, microbubble generator and washing device of microbubble generator |
| CN211946422U (en) * | 2019-09-17 | 2020-11-17 | 山东中科瑞沃环境技术有限公司 | Ultramicro nano bubble generator |
-
2020
- 2020-12-15 CN CN202011484090.8A patent/CN112705060B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013062226A1 (en) * | 2011-10-27 | 2013-05-02 | 한국에너지기술연구원 | Dynamic gas distributer and bubble tower reactor using same |
| US20170326511A1 (en) * | 2014-10-27 | 2017-11-16 | Sami Shamoon College Of Engineering (R.A.) | Bubble generator |
| US20160317987A1 (en) * | 2015-04-30 | 2016-11-03 | Ransom Man Pan LEE | Micro-bubble generator for showerhead |
| US20190201855A1 (en) * | 2016-01-29 | 2019-07-04 | Richard LADOUCEUR | Rotary gas bubble ejector |
| CN106994305A (en) * | 2017-03-31 | 2017-08-01 | 浙江理工大学 | It is adjustable into the Liqiud-gas mixing device of Air Bubble Size |
| US20190330829A1 (en) * | 2018-04-27 | 2019-10-31 | Ching-Yuan Juan | Micro bubble generating device |
| CN208990587U (en) * | 2018-08-02 | 2019-06-18 | 浙江中寰环保科技有限公司 | Micro-nano bubble generator |
| CN111206380A (en) * | 2018-11-21 | 2020-05-29 | 无锡小天鹅电器有限公司 | Cavitation piece, microbubble generator and washing device of microbubble generator |
| CN110433678A (en) * | 2019-09-12 | 2019-11-12 | 上海行恒科技有限公司 | The micro-nano bubble generator of duct type |
| CN211946422U (en) * | 2019-09-17 | 2020-11-17 | 山东中科瑞沃环境技术有限公司 | Ultramicro nano bubble generator |
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| CN112705060B (en) | 2021-12-28 |
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