CN210229662U - Spiral micro-bubble generating device - Google Patents

Abstract

The utility model relates to a bubble generating device technical field especially relates to the device that is applicable to the micro bubble such as production microbubble, nanobubble, a spiral microbubble generating device promptly. It includes: a pipe, a spiral baffle plate and an inner shaft; the pipeline is a hollow cylinder, the partition plate is fixedly connected between the pipeline and the inner shaft and forms a spiral flow path, and the thickness of the partition plate is gradually increased and then gradually decreased along the flowing direction of the liquid; the inner shaft is a cylinder, and a plurality of conical protrusions are arranged on the surface of the inner shaft along a spiral flow path formed by the pipeline and the inner shaft of the partition plate. The utility model discloses utilize the ingenious permutation and combination of the thickness change of spiral baffle and toper bellying, effectively solved the microbubble relatively great and the difficult problem that bubble concentration is low.

Description

Spiral micro-bubble generating device

Technical Field

The utility model relates to a bubble generating device technical field especially relates to the device that is applicable to the micro bubble such as production microbubble, nanobubble, a spiral microbubble generating device promptly.

Background

In recent years, gas-liquid mixed fluids containing fine bubbles (millimeter, micron, and nanometer sized bubbles) are increasingly used in various industries and in the field of human production and living.

The bubbles formed in the water are classified into millimeter bubbles or micro bubbles (further, micro-nano bubbles, and the like) according to their sizes. Millimeter-wave bubbles are somewhat large bubbles and rise rapidly in the water and eventually collapse and disappear at the water surface. On the other hand, bubbles having a diameter of 50 μm or less have a special property that they have a long retention time in water because they are fine, further shrink in water because they have an excellent gas-dissolving ability, and disappear (completely dissolve) in water, and generally, the bubbles having a diameter of 50 μm or less are called microbubbles, and micro-nano bubbles (having a diameter of 10nm or more and less than 1 μm) and nano bubbles (having a diameter less than 10nm) having a smaller diameter are called microbubbles.

The micro-bubble generating device of the prior art is not enough to generate a sufficient amount of bubbles and it is difficult to achieve a desired effect due to a complicated structure of the micro-bubble generating device.

Disclosure of Invention

An object of the utility model is to provide a do not need complicated gas-liquid mixing mechanism also can produce the bubble of capacity, utilize the pressure variation of liquid in the pipeline to separate out the air in the gas-liquid mixture fluid, and then can make micro-bubble or micro-nano bubble production volume improve to the height that known technique can't realize.

In an aspect of the present invention, a spiral type micro bubble generating device includes: a pipe, a spiral baffle plate and an inner shaft;

the pipeline is a hollow cylinder, one end of the pipeline is provided with a gas-liquid mixed fluid inlet, and the other end of the pipeline is provided with a gas-liquid mixed fluid outlet;

the partition plate is fixedly connected between the pipeline and the inner shaft and forms a spiral flow path, and the thickness of the partition plate is gradually increased and then gradually decreased along the liquid flowing direction;

the partition board is internally provided with a plurality of arc-shaped channels along with the gradually increased thickness of the partition board, two ends of each channel penetrate through the same board surface of the partition board, and two ends of each channel are respectively positioned at the upstream and the downstream of the liquid flowing direction;

the inner shaft is a cylinder, the radius of the inner shaft is smaller than that of the pipeline, the inner shaft is arranged in the pipeline through a partition plate, and the inner shaft and the pipeline are coaxial;

the surface of the inner shaft is provided with a plurality of conical protrusions along a spiral flow path formed by the pipeline and the inner shaft of the clapboard.

In one embodiment, the channel 21 of the partition plate of the spiral type micro-bubble generating device can be arranged in a V shape.

In one embodiment, the conical protrusions of the spiral-type micro-bubble generating device can be arranged in a tree shape.

In one embodiment, the inner wall of the pipe of the spiral type micro-bubble generating device may be provided with a plurality of protruding collision parts.

In one embodiment, the inner wall of the pipe of the spiral type micro-bubble generating device may be provided with a plurality of grooves.

In one embodiment, the spiral micro-bubble generating device has a pipe with a screw thread on the outer wall surface at one end and a screw thread on the inner wall surface at the other end.

The utility model discloses beneficial effect:

1. the utility model discloses simple structure, the manufacturing of being convenient for, and can produce a large amount of microbubbles.

2. The utility model discloses utilize the ingenious permutation and combination of the thickness change of spiral baffle and toper bellying, effectively solved the microbubble relatively great and the difficult problem that bubble concentration is low.

3. The utility model discloses can take place the direct mount on the mechanism at original microbubble, effectively utilize current resource.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a cross-sectional view taken along plane a-a of fig. 2.

Fig. 4 is a schematic structural diagram of a channel on a partition plate according to another embodiment of the present invention.

FIG. 5 is a schematic structural view of the trunk-shaped conical protrusion of the present invention;

FIG. 6 is a schematic structural view of the pipe with a plurality of protruding impact portions;

fig. 7 is a schematic structural view of the utility model of which two ends are provided with screw threads.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In addition, for the purpose of more clearly describing the present invention, parts not connected with the present invention will be omitted from the drawings.

As shown in fig. 1, a spiral type fine bubble generating apparatus includes: a tube 10, a spiral separator 20, an inner shaft 30;

the pipeline 10 is a hollow cylinder, one end of the pipeline is provided with a gas-liquid mixed fluid inlet, and the other end of the pipeline is provided with a gas-liquid mixed fluid outlet;

as shown in fig. 1-2, the partition plate 20 is fixedly connected between the tube 10 and the inner shaft 30 and forms a spiral flow path by the three, the thickness of the partition plate 20 gradually increases and then gradually decreases along the liquid flowing direction, so that when the gas-liquid mixed fluid passes through the gradually decreasing flow path section, a high flow speed is formed to generate turbulence, when the gas-liquid mixed fluid passes through the gradually decreasing flow path section, the pressure of the gas-liquid mixed fluid is released, and when the air separation pressure reaches a critical value, the gas dissolved in the gas-liquid mixed fluid will be separated from the gas-liquid mixed fluid to generate micro bubbles;

as shown in fig. 2-3, the separator 20 has a plurality of arc-shaped channels 21 therein as the thickness thereof gradually increases, two ends of the channels 21 penetrate through the same plate surface of the separator 20, two ends of the channels 21 are respectively located at the upstream and downstream of the liquid flowing direction, the gas-liquid mixed fluid with high flow rate enters the channels 21 from the upstream port of the channels 21, the gas-liquid mixed fluid can be accelerated again, the generated pressure difference forms a plurality of small turbulences, and generates more micro-bubbles, and then the gas-liquid mixed fluid wrapped with the micro-bubbles is discharged from the downstream port of the channels 21, at this time, the micro-bubbles generated in the channels 21 collide with micro-bubbles generated by the spiral flow path formed between the tube 10 and the inner shaft 30 and formed by the three parts, and are cut, so as to effectively perform micro-pulverization of the bubbles, and obtain more;

as shown in fig. 1, the inner shaft 30 is a cylinder with a radius smaller than that of the pipe 10, and the inner shaft 30 is disposed inside the pipe 10 through the partition plate 20 and is coaxial with the pipe 10;

as shown in fig. 2, a plurality of conical protrusions 31 are provided on the surface of the inner shaft 30 along a spiral flow path formed by the three of the pipe 10 and the inner shaft 30 of the baffle 20, the gas-liquid mixture collides with the upstream conical protrusion 31 to form a turbulent flow, thereby generating bubbles, the gas-liquid mixture containing the bubbles collides with the downstream conical protrusion 31 a plurality of times to generate a large amount of micro turbulent flow, thereby simultaneously generating cutting and pulverizing effects on the bubbles in the gas-liquid mixture, and the released bubbles wrapped by the large amount of micro turbulent flow collide with each other and are cut in the water flow, thereby efficiently performing micro pulverization of the bubbles, and further obtaining high-concentration microbubbles.

As shown in FIG. 4, preferably, as an embodiment, the channel 21 of the partition plate 20 of the spiral type fine bubble generating device may be provided in a "V" shape.

As shown in fig. 5, it is preferable that the tapered convex portion 31 of the spiral type minute bubble generating means is provided in a trunk shape as an embodiment.

As shown in fig. 6, it is preferable that the inner wall of the pipe 10 of the spiral type minute bubble generating means is provided with a convex collision part 11 as an embodiment.

As shown in fig. 7, it is preferable that the spiral type fine bubble generating apparatus has a screw thread formed on an outer wall surface of one end of the pipe and a screw thread formed on an inner wall surface of the other end.

The utility model discloses a theory of operation:

when gas-liquid mixed fluid with a certain pressure enters the pipeline 10 from an inflow port of the pipeline 10, the gas-liquid mixed fluid enters a spiral flow path formed by the pipeline 10 and an inner shaft 30 of the clapboard 20, the cross section of the flow path is reduced, a negative pressure area is formed in an extrusion area according to the Bernoulli principle, gas dissolved in the liquid is separated out to generate bubbles through cavitation, the gas-liquid mixed fluid containing the bubbles impacts a conical convex part 31 at the downstream for multiple times to generate a large amount of micro-turbulence, the cutting and crushing effects are simultaneously generated on the bubbles in the gas-liquid mixed fluid, the released bubbles are wrapped by the large amount of micro-turbulence to mutually collide and cut in water flow, the micro-crushing of the bubbles is effectively carried out, meanwhile, the gas-liquid mixed fluid containing the bubbles enters the channel 21 from an upstream port of the channel 21, the gas-liquid mixed fluid can be accelerated again, more micro-bubbles are generated, then the gas-liquid mixed fluid wrapped with the micro-bubbles is discharged from a downstream port of the channel 21, and at the moment, micro-bubbles generated in the channel 21 collide with and are cut by micro-bubbles generated by a spiral flow path formed between the pipeline 10 and the inner shaft 30, so that micro-crushing of the bubbles is effectively performed, more high-concentration micro-bubbles are obtained, and further high-concentration micro-bubbles are obtained. When the gas-liquid mixed fluid passes through the flow path which is gradually reduced as the thickness of the baffle plate 20 is gradually increased, the section of the flow path is gradually increased, the pressure of the gas-liquid mixed fluid is released, when the air separation pressure reaches a critical value, the gas dissolved in the gas-liquid mixed fluid is rapidly separated out from the gas-liquid mixed fluid to generate micro bubbles, when the micro bubbles generated by the gas-liquid mixed fluid passing through the spiral protrusions and the micro bubbles generated by the through holes 3 collide with each other and are cut, the micro crushing of the bubbles is effectively carried out, and more high-concentration micro bubbles are obtained.

Claims (6)

1. A spiral type micro-bubble generating device comprises: a tube (10), a spiral partition plate (20), and an inner shaft (30);

the pipeline (10) is a hollow cylinder, one end of the pipeline is provided with a gas-liquid mixed fluid inlet, and the other end of the pipeline is provided with a gas-liquid mixed fluid outlet;

the method is characterized in that:

the partition plate (20) is fixedly connected between the pipeline (10) and the inner shaft (30) and forms a spiral flow path, and the thickness of the partition plate (20) is gradually increased and then gradually decreased along the liquid flowing direction;

the partition plate (20) is internally provided with a plurality of arc-shaped channels (21) along with the gradually increased thickness of the partition plate, two ends of each channel (21) penetrate through the same plate surface of the partition plate (20), and two ends of each channel (21) are respectively positioned at the upstream and downstream of the flowing direction of the liquid;

the inner shaft (30) is a cylinder, the radius of the inner shaft is smaller than that of the pipeline (10), the inner shaft (30) is arranged in the pipeline (10) through a partition plate (20), and the inner shaft and the partition plate are coaxial;

the surface of the inner shaft (30) is provided with a plurality of conical protrusions (31) along a spiral flow path formed by the pipeline (10) and the inner shaft (30) of the partition plate (20).

2. The spiral type fine bubble generating apparatus according to claim 1, wherein: the channel (21) on the partition (20) can be arranged in a V shape.

3. The spiral type fine bubble generating apparatus according to claim 1, wherein: the conical protrusions (31) may be provided in a trunk shape.

4. The spiral type fine bubble generating apparatus according to claim 1, wherein: the inner wall of the conduit (10) may be provided with a plurality of raised impact portions (11).

5. The spiral type fine bubble generating apparatus according to claim 1, wherein: the inner wall of the pipe (10) may be provided with a plurality of grooves (12).

6. The spiral type fine bubble generating apparatus according to claim 1, wherein: the outer wall surface of one end of the pipeline (10) is provided with screw threads, and the inner wall surface of the other end of the pipeline is provided with screw threads.

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