TWM586638U - Micro-bubble generator - Google Patents

Abstract

The invention relates to a micro-bubble generator, which includes a water inlet pipe and a shell screwed with the water inlet pipe, and a gap is left between the threads to form a first air inlet channel; A gap is left between the shells and forms a second intake passage that communicates with the first intake passage; a bubble generating tube placed in the shell, the end face of the bubble generating tube close to the booster tube and the booster tube A gap is left between the corresponding end faces and forms a third intake passage. The booster pipe includes a first water inlet and a first water outlet. The inner diameter of the first water outlet is smaller than the inner diameter of the first water inlet, so that the water pressure at the first water outlet is greater than the water pressure at the first water inlet. In addition, the flow velocity at the first water outlet is increased, and the air passing through the three air intake channels is sucked into the air bubble generating tube and mixed with water to generate large air bubbles. A cutter is also provided in the shell to cut the large air bubbles into Micro bubbles.

Description

Microbubble generator

The invention relates to a micro-bubble generating device, in particular to a micro-bubble generator.

With the gradual development of society, people's quality of life is constantly improving, and more and more attention is paid to health issues. Because the diameter of the micro-bubbles is very small, it has good effects on vegetable cleaning, healthy bathing, and wastewater treatment and sterilization. It is widely used in aquaculture, agriculture, forestry, and medical industries.

In order to introduce air into the device and mix it with water to generate air bubbles, the existing micro-bubble generator usually needs to provide an air inlet channel on the device casing. However, the opening of the air intake channel will inevitably lead to obvious holes left on the outer surface of the device, and the appearance is not good.

The technical problem to be solved by the new model is that the existing micro-bubble generator must be provided with an air inlet hole, resulting in a poor appearance.

To achieve the above technical effects, the present invention discloses a micro-bubble generator, which includes:

Water inlet pipe, with water inlet channel formed inside, and thread at the end;

A housing screwed to the water inlet pipe, an accommodation space is formed in the housing, and a gap is left at the threaded connection of the housing and the water inlet pipe to form a communication with the accommodation space and the housing An external first air inlet channel, and an end of the casing remote from the water inlet pipe is provided with a bubble flow outlet communicating with the accommodation space;

A booster pipe placed in the accommodating space, one end of the booster pipe is formed with a first water inlet communicating with the water inlet channel, and the other end of the booster pipe is formed with a first water outlet, The inner diameter of the first water outlet is smaller than the inner diameter of the first water inlet, so that the water pressure at the first water outlet is greater than the water pressure at the first water inlet, thereby making the first water inlet The velocity of the water at the water outlet is greater than the velocity of the water at the first water inlet, and a gap is left between the outer side wall of the booster pipe and the inner side wall of the housing and forms a gap with the first air intake passage. A connected second intake passage;

A bubble generating tube placed in the accommodating space and in communication with the first water outlet, an end of the bubble generating tube close to the booster tube and a corresponding end surface on the booster tube are left There is a gap and a third intake passage is formed, and the third intake passage communicates with the second intake passage and the first water outlet, so that when water flows out of the first water outlet, it passes through the first water inlet The air passage, the second air intake passage, and the third air intake passage draw outside air and mix with water to generate large bubbles; and

A cutter provided in the housing, the cutter is provided corresponding to the bubble outflow port, and the large bubble is cut into micro bubbles by the cutter.

The principle of the new micro-bubble generator to generate micro-bubbles is: increasing the flow velocity of water at the first water outlet through the booster pipe and generating a pressure there, and sucking in external air through three intake channels The air bubble is generated in the tube, so that air and water are mixed to generate large air bubbles, and the large air bubbles are cut by a cutter to form micro air bubbles.

The new type of air inlet passage is composed of the gap on the connection surface of the water inlet pipe and the casing, the gap on the connection surface of the casing and the booster pipe, and the gap on the connection surface of the booster pipe and the air bubble generating pipe. While entering the bubble generation tube through the air inlet channel, there is no need to open additional air holes in the device, so that the external surface of the device is complete, which not only has a more beautiful appearance, but also eliminates the hole-opening step, and makes it easier to manufacture.

In addition, in the prior art, the pore diameter of the air inlet hole is generally relatively large, and the amount of air intake is uncontrollable. As a result, the generated micro-bubbles contain bubbles larger than 50 micrometers in diameter. The air intake channel of the new type takes in air through the gap on the assembly surface of the components, and the amount of air intake can be controlled by adjusting the tightness of the assembly, so that the size and number of micro bubbles generated are more stable.

A further improvement of the novel micro-bubble generator is that a circle of protrusions is formed on an end surface of the bubble generation tube near the booster tube, and a circle of depressions is formed on the end surface of the booster tube corresponding to the protrusion. The third air intake passage includes an air intake groove formed on the protruding portion near an end surface of the booster pipe.

A further improvement of the novel micro-bubble generator is that the outer side wall of the bubble generating tube is flush with the outer side wall of the booster tube, and the third intake passage further includes an outer portion formed on the protruding portion. And a first gap between the recessed portion, and the first gap communicates with the intake groove and the second intake passage.

A further improvement of the novel micro-bubble generator is that the bubble generating tube has a second water inlet and a second water outlet, the second water inlet is located near one end of the booster tube, and the second water outlet is located An end far from the booster pipe;

The booster pipe is located around the first water outlet to form a water outlet. The water outlet extends into the second water inlet, so that the first water outlet is placed in the second water inlet. The third air inlet passage includes a second gap formed between an outer side surface of the water outlet portion and an inner side surface of the convex portion, and the second gap communicates the air inlet groove and the second water inlet. .

A further improvement of the novel micro-bubble generator is that the bubble generating tube includes a gas-liquid mixing portion near the second water inlet, the gas-liquid mixing portion is funnel-shaped, and is located at the second water inlet The inner diameter of is larger than the inner diameter away from the second water inlet.

A further improvement of the novel micro-bubble generator is that the bubble generating tube further includes an expansion guide near the second water outlet, and an inner diameter of the expansion guide at the second water outlet is larger than a distance from the An inner diameter of the second water outlet, the expansion guide is located at the second water outlet, and an installation space is formed in communication with the bubble flow outlet, and the cutter is clamped in the installation space.

A further improvement of the novel micro-bubble generator is that a first embedded groove is provided on an end surface of the water inlet pipe close to the booster tube, and a first sealing ring is provided in the embedded groove. The surface abuts the corresponding end surface on the booster tube.

A further improvement of the novel micro-bubble generator is that a second inset groove is provided on the outer side wall of the bubble generation tube, and a second seal ring is provided in the second inlay groove to seal the second seal ring Between an outer wall of the bubble generating tube and an inner wall of the casing.

A further improvement of the novel micro-bubble generator is that the cutter is a cutting net, and the cutting net is provided with a plurality of square cutting holes.

A further improvement of the novel micro-bubble generator is that the cutter is a turbine, and the large bubbles are cut into micro-bubbles by the rotation of the turbine.

The present invention is further described below with reference to the drawings and specific embodiments.

As shown in FIG. 1 to FIG. 3, the novel micro-bubble generator includes a water inlet pipe 10, a housing 20, a booster pipe 30, a bubble generation pipe 40, an air inlet passage, a cutter 60, and two seal rings.

Among them, the outer side of the water inlet pipe 10 is provided with an external thread 11, the inner side of the housing 20 is provided with an internal thread 21 corresponding to the external thread 11, one end of the housing 20 is threadedly connected to the water inlet pipe 10, and the external thread 11 is connected to the internal thread 21. A gap is provided therebetween to form a first intake passage 51 that communicates with the inside and outside of the housing 20. A water inlet channel is formed in the water inlet pipe 10, and an accommodation space is formed in the housing 20. An end of the housing 20 away from the water inlet pipe 10 is provided with a bubble flow outlet 23 communicating with the accommodation space.

The booster pipe 30 is placed in the accommodating space of the housing 20. A first water inlet 31 and a first water outlet 32 are respectively formed at both ends of the booster pipe 30. The first water inlet 31 communicates with the water inlet channel of the water inlet pipe 10. The inner diameter of the first water outlet 32 is smaller than the inner diameter of the first water inlet 31, so that the water pressure at the first water outlet 32 is greater than the water pressure at the first water inlet 31, which further makes the water pressure at the first water outlet 32 The flow velocity is greater than the flow velocity at the first water inlet 31. Preferably, the inner diameter of the booster pipe 30 gradually decreases from the first water inlet 31 to the first water outlet 32. In addition, a gap is left between an outer side wall of the booster pipe 30 and an inner side wall of the casing 20, and a second intake passage 52 communicating with the first intake passage 51 is formed.

The bubble generating tube 40 is placed in the accommodating space of the housing 20 and communicates with the first water outlet 32. The bubble generating tube 40 has a second water inlet 41 and a second water outlet 42, and the second water inlet 41 is located near the booster pipe. At one end of 30, the second water outlet 42 is located at one end away from the booster pipe 30. A gap is formed between the end surface of the bubble generation tube 40 close to the booster tube 30 and the corresponding end surface of the booster tube 30 to form a third intake passage 53, and the third intake passage 53 communicates with the second intake passage 51 and the first intake passage 51. Second water inlet 41.

The inner diameter of the second water inlet 41 is larger than the inner diameter of the first water outlet 32, and the first water outlet 32 of the booster pipe 30 is placed in the second water inlet 41, because the water velocity at the first water outlet 32 is large When the water flows from the first water outlet 32 to the second water inlet 41, according to the Bernoulli effect, the water generates a pressure at this time, and it attracts the air in the third intake passage 53, passing through the first The intake passage 41, the second intake passage 42, and the third intake passage 53 attract outside air into the bubble generating tube 40 and mix with water to generate large bubbles.

Specifically, as shown in FIG. 3 and FIG. 4, an end of the bubble generating tube 40 near the booster tube 30 is formed with a circle of convex portions 403, and an end surface of the booster tube 30 is formed with a circle of concave portions corresponding to the convex portion 403. A plurality of air inlet grooves 533 are formed on the end surface of the protruding portion 403 near the booster tube 30, and the air inlet grooves 533 are evenly distributed on the end surface of the convex portion 403 near the booster tube 30 in a radial pattern. The end surface of the protruding portion 403 close to the booster tube 30 is in contact with the bottom surface of the recessed portion, and the bottom surface of the recessed portion is a flat surface, so that no air gap is left on the connecting surface, and the air intake is achieved only by the air intake groove 533.

The outer side wall of the bubble generating tube 40 is flush with the outer side wall of the pressure generating tube 30. The outer portion of the protruding portion 403 of the bubble generating tube 40 forms a circle of assembling space. The edge of the pressure generating tube 30 near the end surface of the bubble generating tube 40 is convex An insertion portion 301 adapted to the assembling space is formed and formed. The insertion portion 301 surrounds and forms the aforementioned recessed portion, and is inserted into the assembling space through the insertion portion 301, so that the bubble generating tube 40 is restricted in a radial direction. A first gap 531 is formed between the insertion portion 301 and an outer portion of the protruding portion 403, and the first gap 531 communicates with the air intake groove 533 and the second air intake passage 52.

The booster pipe 30 is located around the first water outlet 32 to form a water outlet 302. The water outlet 302 is located inside the recessed portion, and the water outlet 302 extends into the second water inlet 41 of the air bubble generating tube 40 so that the first outlet The inner diameter of the water inlet 32 becomes smaller, and the first water outlet 32 is placed in the second water inlet 41. A second gap 532 is formed between an outer side surface of the water outlet portion 302 and an inner side surface of the protruding portion 403, and the second gap 532 communicates with the air inlet groove 533 and the second water inlet 41. The tortuous third air intake passage 53 is constituted by the above-mentioned communicating first slit 531, air intake groove 533, and second slit 532, and the tortuous third air intake passage 53 prevents water from flowing back into the air intake passage.

As shown in FIGS. 1 and 3, the bubble generating tube 40 includes a gas-liquid mixing portion 401 near the second water inlet 41 and an expansion guide portion 402 near the second water outlet 42. Among them, the gas-liquid mixing portion 401 is funnel-shaped, and its inner diameter at the second water inlet 41 is larger than the inner diameter away from the second water inlet 42, so that the inner side of the convex portion 403 of the bubble generation tube and the pressure increase. The outer side of the water outlet portion 302 of the pipe is a tapered surface, and the second slit 532 there is inclined in the opposite direction to the direction of the water flow, that is, the water must flow in the opposite direction to enter the second slit 532, preventing water from flowing back into the air intake. Within the channel.

The inner diameter of the expansion guide portion 402 at the second water outlet 42 is greater than the inner diameter of the expansion guide portion 402 away from the second water outlet 42. Preferably, the expansion guide 402 is funnel-shaped. The expansion guide 402 is fixed at the second water outlet 32 with a circle of convex parts. An installation space 43 communicating with the air bubble outlet 23 is formed in the convex part. The cutter 60 is installed in the installation space 43 for the passage of large air bubbles. When passing through the installation space 43, large bubbles are cut into micro bubbles. Because the inner diameters of the installation space 43 and the second water outlet 42 are enlarged by expanding the guide portion 402, the efficiency of cutting large bubbles by the cutter 60 is improved, and the amount of micro-bubbles flowing out of the second water outlet 42 is also increased.

In the first embodiment, as shown in FIGS. 1 and 2, the cutter 60 is a cutting net, and the cutting net is installed in the installation space 43 near the air bubble outlet 23. The inner diameter of the installation space 43 and the diameter of the cutting net It is suitable, and the diameter of the cutting net is larger than the inner diameter of the bubble outflow port 23, and the cutting net covers the inside of the bubble outflow port 23. The cutting net is provided with a plurality of tiny square cutting holes. When the large air bubbles pass through the cutting net, the cutting holes are cut into micro bubbles.

In the second embodiment, as shown in FIGS. 5 and 6, the cutter 60 is a turbine, the inner diameter of the installation space 43 is adapted to the size of the turbine, and the diameter of the turbine is larger than the inner diameter of the bubble flow outlet 23. Covers the inside of the bubble outflow port 23. When the turbine rotates, the blades of the turbine cut large bubbles passing through the installation space 43 into micro bubbles. In addition, the rotation of the turbine can also disperse the microbubbles, so that the microbubbles flow out uniformly from the bubble outflow port 23.

As shown in FIG. 1 and FIG. 3, the end surface of the water inlet pipe 10 close to the booster pipe 30 is provided with a first insert groove. A first seal ring 71 is provided in the first insert groove. The bottom surface of the first slot and the other surface abut against the corresponding end surface of the booster pipe 30, and the gap between the water inlet pipe 10 and the booster pipe 30 is blocked by the first seal ring 71 to prevent water Flow into the first intake passage 51 or the second intake passage 52. Preferably, the inner diameter of the first seal ring 71 is consistent with the inner diameter of the first water inlet 31 of the booster pipe 30.

Preferably, a communication gap 511 is left between the end surfaces on both sides of the first insert groove and the radial end surface 22 on the housing adjacent to the surface of the internal thread 21 to communicate the first air inlet channel 51 and the second Take channel 52. The first seal ring 71 is blocked between the communication gap 511 and the water inlet channel to prevent water from flowing into the communication gap 511 and then flowing into the first air inlet channel 51 or the second air inlet channel 52.

The outer wall of the bubble generating tube 40 is provided with a second inset groove, and a second seal ring 72 is provided in the second inset groove. The second seal ring 72 is disposed near the second air inlet passage 52 and sealed by the second seal ring 72. The gap between the outer wall of the bubble generating tube 40 and the inner wall of the housing 20 is blocked, so that the attractive force generated at the second water inlet can better attract outside air to enter, and also prevent water from passing through the outer wall of the bubble generating tube 40 A gap with the inner side wall of the casing 20 enters the second intake passage 52.

The process of generating micro-bubbles by the novel micro-bubble generator is as follows: water enters the booster pipe through the water inlet channel of the water inlet pipe, and the water pressure increases as the water passes through the booster pipe, and it is compared with the first outlet of the booster pipe. A high flow rate flows into the bubble generation tube. At this time, pressure is generated there. The air passing through the three intake channels is sucked into the bubble generation tube, so that air and water in the gas-liquid mixing section of the bubble generation tube mix with air to generate large bubbles. It is dispersed in the expansion guide of the bubble generation tube, and is cut into micro-bubbles when passing through the cutter, and finally the micro-bubbles flow out from the bubble outflow port of the casing.

The beneficial effects of the new micro-bubble generator to produce micro-bubbles are:

The air inlet channels of the novel micro-bubble generator are all formed on the assembly connection surface of the component, and there is no need to open additional air inlet channels. The external surface of the device is complete, the appearance is better, and the production is simpler. While realizing that outside air can enter the bubble generating tube through the intake passage, it also realizes controlling the amount of intake air by adjusting the tightness of the assembly. In addition, in terms of technology, compared with openings, grooving on the existing surface can better control the accuracy of the grooves, and the minimum cross-sectional area of the grooves that can be opened by the existing process is smaller than the minimum cross-section of the holes that can be opened. The area is smaller, and the amount of air intake can be minimized while the air intake is realized.

When assembling the new microbubble generator, in order to make the cutter, the bubble generating tube and the booster tube in the shell tightly assembled, and also to make the first seal ring act as a seal, the water inlet pipe is threadedly connected to the housing, An axial thrust is applied to the first sealing ring by the end surface of the first sealing ring, so that the end surface of the protruding portion and the bottom surface of the recessed portion will necessarily be in close contact without leaving a gap. Therefore, an air inlet groove is provided on the end surface of the protruding portion to solve the problem. . And because the end surface of the protruding portion and the bottom surface of the recessed portion are already in close contact, conditions are created for the retention of the first gap and the second gap.

The present invention has been described in detail with reference to the embodiments of the accompanying drawings, and those skilled in the art can make various changes to the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation on the present invention, and the present invention will take the scope defined by the appended claims as the protection scope of the present invention.

10‧‧‧ water inlet pipe

11‧‧‧external thread

20‧‧‧Shell

21‧‧‧ Internal thread

22‧‧‧face

23‧‧‧ Bubble Outlet

30‧‧‧ Booster

301‧‧‧Insertion

302‧‧‧Water Department

31‧‧‧First water inlet

32‧‧‧First Outlet

40‧‧‧ Bubble generating tube

401‧‧‧Gas-liquid mixing department

402‧‧‧Expansion Guide

403‧‧‧ protrusion

41‧‧‧Second water inlet

42‧‧‧Second Outlet

43‧‧‧installation space

51‧‧‧The first intake channel

511‧‧‧connection gap

52‧‧‧Second intake channel

53‧‧‧Third intake channel

531‧‧‧The first gap

532‧‧‧Second Gap

533‧‧‧Air inlet tank

60‧‧‧ Cutter

71‧‧‧first seal

72‧‧‧Second sealing ring

FIG. 1 is a cross-sectional view of a first embodiment of the novel microbubble generator.

FIG. 2 is an exploded view of the first embodiment of the novel micro-bubble generator.

FIG. 3 is a partially enlarged schematic view of the intake passage in FIG. 1.

FIG. 4 is a partially enlarged schematic view of an air inlet groove provided on the bubble generating tube in FIG. 2.

FIG. 5 is a sectional view of a second embodiment of the novel micro-bubble generator.

FIG. 6 is an exploded view of a second embodiment of the novel micro-bubble generator.

Claims (10)

A micro-bubble generator includes:
Water inlet pipe, with water inlet channel formed inside, and thread at the end;
A housing screwed to the water inlet pipe, an accommodation space is formed in the housing, and a gap is left at the threaded connection between the housing and the water inlet pipe, and forms a communication between the accommodation space and the outside of the housing A first air inlet channel, an end of the casing remote from the water inlet pipe is provided with a bubble flow outlet communicating with the accommodation space;
A booster pipe placed in the accommodating space, one end of the booster pipe is formed with a first water inlet communicating with the water inlet channel, and the other end of the booster pipe is formed with a first water outlet, The inner diameter of the first water outlet is smaller than the inner diameter of the first water inlet, so that the water pressure at the first water outlet is greater than the water pressure at the first water inlet, thereby making the first water inlet The velocity of the water at the water outlet is greater than the velocity of the water at the first water inlet, and a gap is left between the outer side wall of the booster pipe and the inner side wall of the housing and forms a gap with the first air intake passage. A connected second intake passage;
A bubble generating tube placed in the accommodating space and in communication with the first water outlet, an end of the bubble generating tube close to the booster tube and a corresponding end surface on the booster tube are left There is a gap and a third intake passage is formed, and the third intake passage communicates with the second intake passage and the first water outlet, so that when water flows out of the first water outlet, it passes through the first water inlet The air passage, the second air inlet passage, and the third air inlet passage draw in external air and mix with water to generate large bubbles; and a cutter provided in the casing, the cutter is provided corresponding to the air bubble outlet, The large bubbles are cut into micro bubbles by the cutter. The micro-bubble generator according to claim 1, wherein an end portion of the bubble generation tube near the booster tube is formed with a circle of protrusions, and an end surface of the pressure tube is formed with a circle corresponding to the protrusion portion. In the recessed portion, the third air intake passage includes an air intake groove formed on the convex portion near an end surface of the booster pipe. The micro-bubble generator according to claim 2, wherein an outer wall of the bubble generating tube and an outer wall of the booster tube are flush with each other, and the third intake passage further includes a A first gap between the outer portion and the recessed portion, and the first gap communicates with the intake groove and the second intake passage. The micro-bubble generator according to claim 2 or 3, wherein,
The bubble generating tube has a second water inlet and a second water outlet, the second water inlet is located at an end near the booster tube, and the second water outlet is located at an end remote from the booster tube;
The booster pipe is located around the first water outlet to form a water outlet. The water outlet extends into the second water inlet, so that the first water outlet is placed in the second water inlet. The third air inlet passage includes a second gap formed between an outer side surface of the water outlet portion and an inner side surface of the convex portion, and the second gap communicates the air inlet groove and the second water inlet. . The micro-bubble generator according to claim 4, wherein the bubble generating tube includes a gas-liquid mixing portion near the second water inlet, the gas-liquid mixing portion is funnel-shaped, and is located in the second inlet. The inner diameter at the water inlet is larger than the inner diameter away from the second water inlet. The micro-bubble generator according to claim 4, wherein the bubble generating tube further comprises an expansion guide near the second water outlet, and the expansion guide is located at the second water outlet with an inner diameter larger than a distance from An inner diameter of the second water outlet, the expansion guide is located at the second water outlet, and an installation space is formed in communication with the bubble flow outlet, and the cutter is locked in the installation space. The micro-bubble generator according to claim 1, wherein an end face of the water inlet pipe close to the booster pipe is provided with a first insert groove, and a first seal ring is provided in the first insert groove. A surface of a seal ring abuts a corresponding end surface on the booster pipe. The micro-bubble generator according to claim 1, wherein an outer side wall of the bubble generating tube is provided with a second inset groove, and a second seal ring is provided in the second inset groove to make the second seal A ring is sealed between the outer wall of the bubble generating tube and the inner wall of the casing. The micro-bubble generator according to claim 1, wherein the cutter is a cutting net, and the cutting net is provided with a plurality of square cutting holes. The micro-bubble generator according to claim 1, wherein the cutter is a turbine, and the large bubbles are cut into micro-bubbles by rotating the turbine.