CN211189788U

CN211189788U - Microbubble generating device

Info

Publication number: CN211189788U
Application number: CN201920739934.5U
Authority: CN
Inventors: 李攀; 廖正浩; 何怡霄
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-08-07
Anticipated expiration: 2029-05-22

Abstract

The utility model relates to a micro-bubble generating device, which comprises a water inlet part and a water outlet part; the water inlet part is cylindrical, one end of the water inlet part is a connector connected with a water supply pipeline, the other end of the water inlet part is provided with a group of first liquid channels with gradually reduced axial inner diameters in the radial range of the connector along the circumferential direction, and a group of through holes are arranged on the radial outer sides of the first liquid channels; the water outlet part is cylindrical, the front end of the water outlet part is in butt joint with the surface of the water inlet part, the rear end of the water outlet part is a water outlet, a group of second liquid channels which are in one-to-one correspondence with the first liquid channels are arranged at the front end of the water outlet part along the circumferential direction in the radial range of the water outlet, and the inner diameter of each second liquid channel is larger than that of the tail end of each first liquid channel; at least one layer of screen is arranged in the water outlet; and when the surfaces of the water inlet part and the water outlet part are butted, a gap generated by surface roughness is utilized to form an air inlet channel. The utility model has simple structure, convenient assembly and disassembly and high stability; the price is low, and the device is very suitable for municipal terminals such as public places, families, hotels and the like.

Description

Microbubble generating device

Technical Field

The utility model relates to a microbubble generating device belongs to microbubble and takes place technical field.

Background

The traditional bubbles with the diameter of 1mm-5mm rise rapidly in water and disappear after reaching the water surface, and micron-sized bubbles with the diameter of less than 50 mu m rise slowly in water and have large specific surface area, so the gas-liquid mass transfer speed is much higher than that of the traditional large-sized bubbles; meanwhile, the micro bubbles also have very excellent physiological effects. In recent years, micro bubbles are not only widely applied to the industrial fields of air floatation, oxygen aeration, beverage deoxidation and the like, but also increasingly applied to the civil fields of medical treatment, beauty treatment, bathing and the like. At present microbubble generating device structure is complicated, and some need the water pump to be supplementary, and the increase of extra energy consumption has reduced the use value of microbubble.

The prior art also has the microbubble generating device who designs and need not extra power device, but the structure is more complicated, and the dismouting is inconvenient, and stability also has not enoughly. Especially for the design of air inlet channel, the degree of difficulty is great, and installation fixed knot constructs also more complicacy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a microbubble generating device need not power input, only utilizes municipal pipe network water pressure can produce the little bubble water of higher concentration, simple structure simultaneously, easy dismounting, and stability is high, and the low price is particularly suitable for municipal administration end use, like public place, family, hotel etc.

The utility model adopts the following technical proposal:

a micro-bubble generating device comprises a water inlet part 1 and a water outlet part 2; the water inlet part 1 is cylindrical, one end of the water inlet part is provided with a connector connected with a water supply pipeline, the other end of the water inlet part is provided with a group of first liquid channels 13 with constant or degressive axial inner diameters in the radial range of the connector along the circumferential direction, and a group of through holes 12 are arranged on the radial outer sides of the first liquid channels 13; the water outlet part 2 is cylindrical, the front end of the water outlet part is in butt joint with the surface of the water inlet part 1, the rear end of the water outlet part is a water outlet, a group of second liquid channels 22 which are in one-to-one correspondence with the first liquid channels 13 are arranged at the front end in the radial range of the water outlet along the circumferential direction, the axial inner diameter of the second liquid channels 22 is unchanged or increased, and the minimum inner diameter of the second liquid channels 22 is larger than the inner diameter of the tail end of the first liquid channels 13; at least one layer of screen 3 is arranged in the water outlet; when the surfaces of the water inlet part 1 and the water outlet part 2 are butted, an air inlet channel is formed by utilizing a gap generated by the roughness of one or two surfaces.

Furthermore, the front end of the water outlet part 2 is provided with threaded holes 23 corresponding to the group of through holes 12 one by one, and the water inlet part 1 and the water outlet part 2 are connected into a whole by fixing the water inlet part 1 and the water outlet part 23 through the through holes 12 by screws.

Furthermore, a plurality of layers of screen meshes 3 are sequentially and tightly arranged in the water outlet and are fixed through a baffle ring 4.

Furthermore, the water inlet and the water outlet are cylindrical and have the same inner diameter.

Further, the first liquid passage 13 is tapered or cylindrical, and the second liquid passage 22 is tapered or cylindrical.

Furthermore, the end faces of the water inlet part 1 and the water outlet part 2, which are butted, have different roughness, different roughness is selected according to different air inflow, and the surface roughness Rz value is larger than 25 micrometers according to the municipal pipe network water pressure of 0.2-0.3 Mpa.

Further, the main body of the screen 3 is made of stainless steel, and the periphery of the screen 3 is provided with a rubber ring 31.

Further, the inlet opening all is the hickey with the apopore, keeps off ring 44 outside screw thread and apopore hickey 21 locking to fix a plurality of screen cloth 3 in apopore hickey 21.

Furthermore, the apopore is the through-hole, and it is fixed to adopt interference fit's mode with this through-hole with separation blade 4.

Furthermore, the mesh number of the three stainless steel screens is respectively 25 meshes, 50 meshes and 100 meshes; the taper angle of the liquid channel 13 is 2.5 degrees, and the minimum inner diameter is 1.5 mm; the second liquid passage 22 has an inner diameter of 2.1 mm.

The beneficial effects of the utility model reside in that:

1) the micro-bubble water with higher concentration can be generated only by utilizing the water pressure of a municipal pipe network without power input;

2) the structure is simple, the disassembly and the assembly are convenient, and the stability is high;

3) the price is low, and the device is very suitable for municipal terminals such as public places, families, hotels and the like.

4) The air inlet channel is designed by utilizing the roughness between the joint end surfaces of the water inlet part and the water outlet part, the design is ingenious, the roughness can be adjusted according to different air inflow requirements, the adjustment can reach high precision, the design of the air inlet channel is greatly simplified, and the design difficulty of the air inlet channel is reduced;

5) the part of intaking goes up a set of through-hole 12 of ingenious design to and go out a set of screw hole 23 that corresponds on the water part, realized the part of intaking and the ingenious fixed of play water part, need not to seal simultaneously, utilize the negative pressure that the ejector principle produced to inwards inhale second liquid passage 22 along the butt joint face with the rivers that pass through-hole 12 in, design benefit, mounting structure is comparatively simplified, implements conveniently.

Drawings

Fig. 1 is a sectional view taken along line a-a in fig. 2.

Fig. 2 is a front view of the water inlet part of the micro-bubble generator of the present invention.

Fig. 3 is a front view of the water outlet part of the micro-bubble generator of the present invention.

Fig. 4 is a sectional view taken along line B-B in fig. 3.

Fig. 5 is a side view of a screen.

Figure 6 is a front view of the screen.

Fig. 7 is a side view of the retainer ring.

Fig. 8 is a front view of the retainer ring.

Fig. 9 is a sectional view of the central axis of the microbubble generator of the present invention after installation.

In the figure, 1, a water inlet part, 2, an air inlet part, 3, a screen, 4, a baffle ring, 11, a threaded connector, 12, a through hole, 13, a first liquid channel, 14, an end surface of the water inlet part, 21, the threaded connector, 22, a second liquid channel, 23, a threaded hole, 24, an end surface of the water outlet part, 31, a rubber ring and 32, a grid part are arranged.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

referring to fig. 1-9, a micro-bubble generating device includes a water inlet part 1, a water outlet part 2; the water inlet part 1 is cylindrical, one end of the water inlet part is provided with a connector connected with a water supply pipeline, the other end of the water inlet part is provided with a group of first liquid channels 13 with gradually reduced axial inner diameters in the radial range of the connector along the circumferential direction, and the radial outer sides of the first liquid channels 13 are provided with a group of through holes 12; the water outlet part 2 is cylindrical, the front end of the water outlet part is in butt joint with the surface of the water inlet part 1, the rear end of the water outlet part is a water outlet, a group of second liquid channels 22 which are in one-to-one correspondence with the first liquid channels 13 are arranged at the front end of the water outlet part along the circumferential direction, and the inner diameter of each second liquid channel 22 is larger than that of the tail end of each first liquid channel 13; at least one layer of screen 3 is arranged in the water outlet; and when the surfaces of the water inlet part 1 and the water outlet part 2 are butted, an air inlet channel is formed by utilizing a gap generated by surface roughness.

In this embodiment, referring to fig. 9, the front end of the water outlet portion 2 has threaded holes 23 corresponding to the set of through holes 12 one by one, and screws are used to fix the threaded holes 23 and the through holes 12, so that the water inlet portion 1 and the water outlet portion 2 are connected into a whole, and a gap is formed between the screw and the through hole 12 for water to pass through.

In this embodiment, referring to fig. 5-8 and 9, several layers of screens 3 are arranged in the water outlet in sequence and tightly attached to each other, and are fixed by the baffle ring 4.

In this embodiment, the inlet and outlet are cylindrical and have the same internal diameter, see fig. 9.

In this embodiment, see fig. 1, 9, the first liquid passage 13 is conical and the second liquid passage 22 is cylindrical.

In this embodiment, the end faces of the water inlet part 1 and the water outlet part 2 which are butted have different roughness, and the roughness is selected to be different according to the air inlet amount. According to the municipal pipe network water pressure of 0.2-0.3Mpa, the surface roughness Rz value should be more than 25 microns. This is not shown in the figures.

In this embodiment, referring to fig. 5-6, the body of the screen 3 is made of stainless steel, and the periphery of the screen 3 is provided with a rubber ring 31.

In this embodiment, referring to fig. 9, the water inlet and the water outlet are threaded interfaces, and the outer threads of the retaining ring 44 are locked with the threaded interface 21 of the water outlet, so as to fix the plurality of screens 3 in the threaded interface 21 of the water outlet.

When the mounting is carried out, the end surface 24 is opposite to the end surface 14, and a screw passes through the through hole 12 and is locked with the threaded hole 23, so that the end surface 24 is attached to the end surface 14; and (3) placing the three stainless steel screens 3 into the threaded hole 21, then placing a baffle ring 4, and locking the threads on the outer side of the baffle ring 4 with the threaded interface 21, thereby fixing the three stainless steel screens 3 in the threaded hole 23. The mesh number of the three stainless steel screen meshes 3 is respectively 25 meshes, 50 meshes and 100 meshes. The liquid channel 13 is conical, the angle is 2.5 degrees, and the minimum inner diameter is 1.5 mm; the liquid passage 22 has an inner diameter of 2.1 mm. Specific dimensions are not labeled in the drawings.

The embodiment of the utility model provides a little bubble generating device, its working process as follows:

during the use, will assemble microbubble generating device and be connected with the inlet channel through internal thread interface 11, rivers are through 12 backs, and the junction back of terminal surface 14 and terminal surface 24 gets into liquid channel 22, according to ejector principle, forms the negative pressure in the junction, and outside air passes through between terminal surface 14 and terminal surface 24, because the micropore clearance that the surface roughness leads to inhales liquid channel 22, passes through stainless steel net 3 afterwards, is broken into tiny bubble.

Example two:

the water outlet hole on the water outlet part 2 is not a threaded hole but a through hole, and the baffle plate 4 and the through hole are fixed in an interference fit mode.

The above two embodiments are optional embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention as claimed.

Claims

1. A microbubble generation device characterized in that:

comprises a water inlet part (1) and a water outlet part (2);

the water inlet part (1) is cylindrical, one end of the water inlet part is provided with a connector connected with a water supply pipeline, the other end of the water inlet part is provided with a group of first liquid channels (13) with constant or degressive axial inner diameters in the radial range of the connector along the circumferential direction, and a group of through holes (12) are arranged on the radial outer sides of the first liquid channels (13);

the water outlet part (2) is cylindrical, the front end of the water outlet part is in butt joint with the surface of the water inlet part (1), the rear end of the water outlet part is a water outlet, a group of second liquid channels (22) which are in one-to-one correspondence with the first liquid channels (13) are arranged at the front end of the water outlet part in the radial range along the circumferential direction, the axial inner diameter of the second liquid channels is unchanged or increased, and the minimum inner diameter of the second liquid channels (22) is larger than the inner diameter of the tail end of the first liquid channels (13); at least one layer of screen (3) is arranged in the water outlet;

when the surfaces of the water inlet part (1) and the water outlet part (2) are butted, an air inlet channel is formed by utilizing a gap generated by the roughness of one or two surfaces.

2. The microbubble generator according to claim 1, wherein the water outlet part (2) has screw holes (23) at the front end corresponding to the set of through holes (12), and the water inlet part (1) and the water outlet part (2) are connected into a whole by fixing the screw holes (23) and the through holes (12) with screws.

3. The microbubble generator according to claim 1, wherein a plurality of layers of screens (3) are closely attached to the water outlet in sequence and fixed by the baffle ring (4).

4. The microbubble generator according to claim 1, wherein the water inlet port and the water outlet port are cylindrical and have the same inner diameter.

5. The microbubble generator according to claim 1, wherein the first liquid passage (13) has a tapered shape or a cylindrical shape, and the second liquid passage (22) has a tapered shape or a cylindrical shape.

6. The microbubble generator according to claim 1, wherein the end faces of the water inlet part (1) and the water outlet part (2) in butt joint have different roughness, and the roughness is selected according to the difference of air inflow, and the surface roughness Rz value is larger than 25 microns according to the municipal pipe network water pressure of 0.2-0.3 Mpa.

7. The microbubble generator according to claim 1, wherein the screen (3) is made of stainless steel, and a rubber ring (31) is provided around the screen (3).

8. The microbubble generator according to claim 1, wherein the outer threads of the retainer ring (4) are locked with the water outlet threaded port (21), thereby fixing the plurality of screens (3) in the water outlet threaded port (21).

9. The microbubble generator according to claim 1, wherein the water outlet is a through hole, and the baffle ring (4) is fixed to the through hole by interference fit.