TWI768813B - bubble generator - Google Patents

Abstract

A bubble generating device is suitable for use with a liquid and a gas, and includes a base unit, an air inlet unit, and a liquid inlet unit. The base unit is formed with a fluid flow channel extending from the rear to the front with a partial diameter reduction. The air intake unit includes an assembly seat assembled at the rear end of the base unit, and a conical protrusion protruding forward from the assembly seat into the fluid flow channel. The assembly seat and the protrusion define an intake channel suitable for the gas to flow into the fluid channel. The liquid inlet unit defines a liquid inlet channel suitable for supplying the liquid into the fluid flow channel. The truncated seat of the present invention can enhance the eddy current effect, so that the length of the base unit and the fluid flow channel can be shortened, which is convenient for users to install and use while reducing the production cost.

Description

bubble generator

The present invention relates to a water oxygen device, in particular to a bubble generating device.

Referring to FIG. 1 , Chinese Patent No. 366696 provides a jet oxygenator, comprising a base body 11 , a submersible motor 12 installed at the rear end of the base body 11 , and a submersible motor 12 installed at the front end of the base body 11 . A jet pipe unit 13 , several cutting nets 14 inserted into the jet pipe unit 13 , and an air duct 15 installed at the top of the base body 11 . The jet pipe unit 13 defines a flow channel 131 that gradually expands from back to front. After the water is driven into the flow channel 131 of the jet pipe unit 131 by the submersible motor 12 through the base body 11, a vortex will be generated under the guidance of the flow channel 131, and the air will be under the action of the Venturi principle. , is sucked into the flow channel 131 through the air conduit 15 , so as to mix with the water flow and generate air bubbles.

One of the disadvantages of the existing jet oxygenator is that the length of the jet pipe unit 13 is too long, which requires a large installation space. Secondly, the cutting nets 14 are inserted into the jet pipe unit 13, which is easy to Even if it can be disassembled and assembled, it needs to be cleaned and maintained regularly, which is more troublesome. Therefore, it would be beneficial to the industry to provide a new product that improves upon the above-mentioned shortcomings.

It is an object of the present invention to provide a bubble generating device that overcomes at least one of the disadvantages of the prior art.

The bubble generating device is suitable for use with a liquid and a gas, and includes a base unit, an air inlet unit, and a liquid inlet unit.

The base unit includes a first end and a second end opposite to each other, and is formed with a fluid flow channel extending from the first end to the second end and extending radially. The air intake unit includes an assembly seat disposed at the first end, and a conical or cone-shaped protrusion protruding from the assembly seat into the fluid flow channel. The assembly seat cooperates with the protrusion to define an air inlet channel suitable for the gas to flow into the fluid channel. The liquid inlet unit is connected to the base unit and defines a liquid inlet channel suitable for the liquid to flow into the fluid flow channel.

The effect of the present invention is that the projection seat in the shape of a truncated cone or a truncated cone can enhance the eddy current effect, so that the overall length of the present invention can be shortened, which is convenient for users to install and use while reducing production costs.

Referring to FIGS. 2 to 4 , an embodiment of the bubble generating device of the present invention is suitable for use with a liquid 21 (see FIG. 4 ) and a gas 22 (see FIG. 4 ). The liquid 21 is water in this embodiment. The gas 22 is air in this embodiment.

This embodiment includes a base unit 3 suitable for fluids such as the liquid 21 and the gas 22 to flow therein along a flow direction D1, an air intake unit 4 assembled at the rear end of the base unit 3, and integrally connected to the base unit 3. The liquid inlet unit 5 at the upper end of the base unit 3 , a support unit 6 protruding forward from the base unit 3 as a body, and an orifice plate unit 7 arranged on the support unit 6 .

The base unit 3 includes a first end 31 located upstream of the flow direction D1, and a second end 32 located downstream of the flow direction D1. The first end 31 and the second end 32 are opposite to each other.

The base unit 3 is formed with a fluid channel 33 extending from the first end 31 to the second end 32 and penetrating the body of the base unit 3 . The fluid flow channel 33 defines a central axis 34 extending back and forth along the flow direction D1 , and includes a radially narrowed area 35 and an equal-width area 36 that are arranged in a rear-to-front arrangement and communicate with each other.

The diameter reduction area 35 is generally truncated, and a diameter reduction length L11 extending from the first end 31 to the second end 32 of the diameter reduction area 35 is 3.1 cm. A diameter reduction angle A1 defined by the outer boundary of the diameter reduction area 35 and the central axis 34 is 23.7 degrees. A wide diameter D11 and a narrow diameter D12 of an inlet and an outlet of the diameter reduction area 35 are 3.8 cm and 0.778 cm, respectively. In other embodiments of the present invention, the diameter reduction angle A1 can also be 18 to 30 degrees.

The equal-width area 36 is approximately cylindrical, and extends from the front end outlet of the diameter-reduced area 35 to the second end 32 of equal width. An extension length L12 and an aperture width D21 of the equal-width region 36 are respectively 1.0 cm and 0.778 cm.

The air intake unit 4 includes an assembly seat 41 in the shape of a circular plate and covering the first end 31 , and a conical protrusion protruding forward from the assembly seat 41 into the fluid flow channel 33 . 42 , and a plug-in tube 43 protruding backward from the assembly seat 41 and suitable for plugging an intake pipe 91 .

The assembly seat 41 covers the inlet of the narrowing area 35 , and cooperates with the protruding seat 42 to define an air inlet channel 44 suitable for the gas 22 to flow into the narrowing area 35 . The intake passage 44 communicates with the plug-in tube 43 .

The protrusion 42 protrudes into the fluid flow channel 33 from the inlet of the diameter-reduced area 35 of the fluid flow channel 33 and is in the shape of a truncated cone. The rear diameter width D31 at the rear end is 2.6m, and the front diameter at the front end The width D32 is 0.78cm. An included angle A2 defined by one side table 421 of the protruding seat 42 and the central axis 34 is 39.6 degrees. In other embodiments of the present invention, the included angle A2 can also be 34-42 degrees.

The liquid inlet unit 5 is tubular, and includes a wide tube portion 51 spaced from the base unit 3 , and a narrow tube portion 52 integrally connected between the base unit 3 and the wide tube portion 51 . The wide tube portion 51 cooperates with the narrow tube portion 52 to define a liquid inlet channel 53 suitable for the liquid 21 to flow into the fluid channel 33 . The opening of the liquid inlet channel 53 is located downstream of the boss 42 along the flow direction D1. In other embodiments of the present invention, the liquid inlet unit 5 can also be inserted into the base unit 3 in a snap-fit manner.

From the top view of FIG. 3 , the liquid inlet channel 53 is laterally and horizontally offset from the central axis 34 to connect the base unit 3 and communicate with the fluid flow channel 33 . From the side sectional view of FIG. 4 , the liquid inlet channel 53 is not vertically communicated with the fluid flow channel 33 . The non-perpendicular, specifically, means that an inclination angle A3 defined by the liquid inlet channel 53 and the central axis 34 is 81 degrees. In other embodiments of the present invention, the inclination angle A3 can also be 75 to 88 degrees.

The support unit 6 protrudes forwardly from the second end 32 of the base unit 3 along the flow direction D1, and includes a ring-shaped assembly ring 61 for the orifice unit 7 to be arranged on, and an extension The rib group 62 is connected between the second end 32 of the base unit 3 and the assembly ring 61 . The rib group 62 includes two supporting ribs 621 spaced up and down. In other embodiments of the present invention, the support unit 6 can also be assembled on the base unit 3 in a snap-fit manner.

2, 4 and 5, the orifice plate unit 7 is spaced apart from the base unit 3 along the flow direction D1, and includes a first plate member 71 and a second plate member 72 arranged along the flow direction D1 . The first plate member 71 is formed with a plurality of first plate holes 711 in the shape of circular holes and equal in size. The second plate member 72 is formed with a plurality of circular hole-shaped second plate holes 721 and a plurality of curved plate holes 722 extending in a curved manner. The second plate holes 721 are larger than the first plate holes 711 and are partially staggered with the first plate holes 711 . The staggered arrangement specifically refers to partially overlapping and partially non-overlapping. The bent plate holes 722 are arranged at equal angular intervals.

Referring to FIGS. 2 to 4 , when the present embodiment is used, the gas 22 can be pumped and passed through the inlet pipe 91 on the plug pipe 43 from the air inlet unit 4 through the plug pipe 43 . The air intake channel 44 flows into the fluid flow channel 33 of the base unit 3 . The wide pipe portion 51 of the liquid inlet unit 5 can be plugged with a water pipe 92 , so that the liquid 21 can flow into the fluid channel 33 through the liquid inlet channel 53 .

After the liquid 21 flows into the fluid channel 33 , it will first flow through the diameter-shrinking region 35 , and then flow through the equal-width region 36 to flow out from the second end 32 of the base unit 3 . When the liquid 21 flows in the radially constricted area 35, the gas 22 can be driven by the pressure difference to flow into the fluid flow channel 33 through the air inlet channel 44 as described above and mix with the liquid 21. Air bubbles are formed in the liquid 21 .

The first feature of this embodiment is that the protrusion 42 can guide the flow to improve the flow efficiency of the liquid 21. Therefore, although the overall length of the fluid flow channel 33 of the base unit 3 of this embodiment is only 4.1 cm , but can generate enough flow force to drive the gas 22 to mix into the liquid 21 to generate enough bubbles. In other embodiments of the present invention, the protruding seat 42 can also be in the shape of a truncated cone, such as three, four, five and other polygonal frustum shapes, which can also produce similar effects. The protrusion 42 has a better flow guiding effect.

The second feature of this embodiment is that the liquid inlet channel 53 is laterally offset from the central axis 34 and/or is designed to communicate with the fluid flow channel 33 obliquely up and down, so that when the liquid 21 flows into the fluid flow channel 33, The eddy flow force of the liquid 21 and the gas 22 in the fluid channel 33 is increased, and the outflow efficiency and the bubble generation efficiency of the liquid 21 and the gas 22 in this embodiment are improved.

Referring to FIGS. 2 , 4 and 5 , the equal-width area 36 of this embodiment can make the bubbles generated in the diameter-reduced area 35 further fragmented into smaller bubbles in the equal-width area 36 , and The orifice plate unit 7 can also make the air bubbles flowing out of the equal width area 36 pass through and then be further fragmented. Mainly because the sizes of the second plate holes 721 and the first plate holes 711 are different and arranged in a staggered manner, the orifice plate unit 7 can make the air bubbles pass through the first plate holes 711 and the second plate holes 721 When colliding with the first plate 71 and the second plate 72, it is broken. The advantage of spacing the orifice unit 7 from the base unit 3 through the support unit 6 is that impurities such as sediment can be discharged through the space between the orifice unit 7 and the base unit 3 without clogging the base unit 3. orifice unit 7. Wherein, depending on the required size of the bubbles, the fluid flow channel 33 can also omit the equal-width region 36 and only include the diameter-reduced region 35 .

To sum up, the effect of the bubble generating device of the present invention is that the projection seat 42 in the shape of a truncated cone or a truncated cone can enhance the eddy current effect, so that the overall length of the present invention can be shortened, and the production cost is reduced, and it is convenient for use. installed and used.

The above descriptions are merely examples of the present invention, which cannot limit the scope of the patent application of the present invention, and the simple equivalent changes and modifications according to the patent application scope of the present invention and the patent specification should also be regarded as the present invention. Covered by the scope of the patent application.

21: Liquid

22: Gas

3: Base unit

31: First End

32: Second End

33: Fluid flow channel

34: Center shaft

35: diameter reduction area

36: Equal width area

4: Air intake unit

41: Assembly seat

42: Protuberance

421: Side Table

43: Plug Tube

44: Intake channel

5: Liquid inlet unit

51: Wide tube part

52: Narrow tube part

53: Liquid inlet channel

6: Support unit

61: Assembly Ring

62: Rib Set

621: Support Ribs

7: Orifice plate unit

71: The first board

711: The first plate hole

72: Second board

721: Second board hole

722: Bending plate hole

91: Intake pipe

92: water pipes

A1: Diameter reduction angle

A2: Angle of included angle

A3: Tilt angle

D1: Flow direction

D11: Wide bore

D12: Narrow bore

D21: Diameter width

D31: rear diameter width

D32: Front diameter wide

L11: diameter reduction length

L12: Extended length

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: Figure 1 is a cross-sectional view illustrating a conventional jet oxygenator; Figure 2 is an exploded perspective view illustrating an embodiment of the bubble generating device of the present invention; Figure 3 is a top view illustrating this embodiment; Figure 4 is a cross-sectional view taken along the secant line IV-IV in Figure 3; and Figure 5 is a front view illustrating an orifice plate unit of this embodiment.

3: Base unit

31: First End

32: Second End

33: Fluid flow channel

34: Center shaft

4: Air intake unit

41: Assembly seat

42: Protuberance

421: Side Table

43: Plug Tube

44: Intake channel

5: Liquid inlet unit

51: Wide tube part

52: Narrow tube part

53: Liquid inlet channel

6: Support unit

61: Assembly Ring

62: Rib Set

621: Support Ribs

7: Orifice plate unit

71: The first board

711: The first plate hole

72: Second board

721: Second board hole

722: Bending plate hole

D1: Flow direction

Claims (6)

A bubble generating device, suitable for use with a liquid and a gas, and comprising: a base unit, including a first end and a second end opposite to each other, and formed with a first end extending from the first end to the first end A fluid flow channel with two ends and a diameter-contracted extension; an air intake unit, including an assembly seat disposed at the first end, and a truncated cone or frustoconical shape protruding from the assembly seat into the fluid flow channel the protrusion, the assembly seat cooperates with the protrusion to define an air inlet channel suitable for the gas to flow into the fluid flow channel; and a liquid inlet unit, which is connected to the base unit and defines a suitable for A liquid inlet channel for the liquid to flow into the fluid flow channel; wherein, the liquid and the gas flow in a flow direction in the fluid flow channel, and the bubble generating device also includes a flow from the second end of the base unit along the A support unit protruding in the flow direction, and an orifice plate unit installed on the support unit and spaced from the base unit along the flow direction. The air bubble generating device according to claim 1, wherein the fluid flow channel is partially radially contracted and extended, and includes a radially contracted region extending from the first end to the second end, and a radially contracted region extending from the first end to the second end. The equal width extends to the equal width region of the second end. The air bubble generating device according to claim 1, wherein the support unit comprises an assembly ring in the shape of an annular shape for the orifice plate unit to be arranged on, and an extension connected between the second end of the base unit and the assembly ring the ribs Group. The bubble generating device according to claim 1, wherein the orifice plate unit comprises a first plate member and a second plate member arranged along the flow direction, and the first plate member is formed with a plurality of first plate holes, The second plate member is formed with a plurality of second plate holes, and the first plate holes and the second plate holes are staggered. The bubble generating device according to claim 1, wherein the liquid inlet channel is connected to the fluid flow channel obliquely up and down. The bubble generating device according to claim 1 or 5, wherein the liquid and the gas flow in a flow direction in the fluid flow channel, the fluid flow channel defines a central axis extending along the flow direction, and the liquid inlet A channel communicates with the fluid flow channel laterally offset from the central axis.

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