TWM581942U - Micro-bubble obtaining device - Google Patents

Abstract

A microbubble obtaining device includes a first body, the first body is provided with a water inlet, a water outlet, a scroll chamber connecting the water inlet and the water outlet, and an air inlet connecting the scroll chamber. The water outlet is provided with a progressive perforating and pulverizing structure for chopping the air bubbles. The axis of the swirling chamber is offset from the axis of the water inlet, and the swirling chamber is provided with a water inlet communicating with the water inlet. The nozzle is disposed on the side of the inlet axis that faces away from the axis of the scroll chamber. By the present microbubble obtaining device, the hindrance to the flow of water can be reduced, and at the same time, the volume of the microbubble obtaining device can be prevented from being increased.

Description

Microbubble obtaining device

The present invention relates to a fluid device, and more particularly to a microbubble obtaining device.

In the prior art, in the fields of aquaculture, wastewater treatment, chemical reaction, medical sanitation, plant cultivation, industrial cleaning and descaling, it is often necessary to mix gas into water medium to obtain water-containing working medium with bubbles, in order to increase air and The contact area of the water to enhance various treatments, the most obvious is to improve the ability to clean and descale. In recent years, water-containing fluids have been applied to daily life, and can be used to soak or rinse vegetables, fruits, dishes, and baths and rinses. In order to make the water contain air bubbles, the air can be pushed in by external power, such as a compressor and an air pump; or the air can be sucked in by the negative pressure generated by the flow of water, such as a venturi structure or a vortex structure bubble obtaining device. The bubble obtaining device of the venturi tube structure mainly utilizes the principle that the water flow velocity is increased and the water pressure is lowered. The bubble obtaining device of the venturi tube structure allows the water flow to increase in speed and form a vacuum region below the external atmosphere at the throat of the pipe by providing a tapered pipe, whereby the vacuum region draws outside air into the pipe. The bubble obtaining device of the vortex structure mainly utilizes the principle that the center pressure of the centrifugal motion is low. The bubble obtaining means of the vortex structure causes the water flow to rotate and centrifugally, thereby forming a vacuum zone at the center of rotation lower than the outside atmosphere, and the vacuum zone draws outside air into the pipe. For details of the structure of the venturi tube, refer to the Taiwan patent TW20170212400U microbubble generator. For the vortex structure, please refer to the Chinese patent CN102958589B microbubble generating device and the CN203916477U microbubble generating device. The microbubble generator and the microbubble generating device may be collectively referred to as a microbubble obtaining device. The microbubble obtaining device can make the water contain microbubbles having a diameter of several tens of micrometers or even several micrometers or less, thereby further prolonging the residence time of the bubbles in the water, and at the same time, increasing the ratio of the surface area to the volume of the bubbles, so that the bubbles are higher. The adsorption characteristics, therefore, the cleaning and detergency ability can be improved. The advantage of the vortex structure relative to the venturi structure is that it reduces the length of the bubble acquisition device and is not sensitive to changes in water flow. Therefore, the existing microbubble obtaining device mostly employs a vortex structure. However, in the prior design, the center of the vortex structure coincides with the center of the pipe, that is, the vortex chamber is upright, which causes the microbubble obtaining device to have a narrow annular shape that communicates with the vortex structure. The nozzle, which hinders the flow of water, causes difficulty in suction, and increasing the size of the annular inlet also increases the diameter of the microbubble obtaining device, making it difficult to apply to conventional water pipe specifications.

The present invention aims to solve the above-mentioned technical problems, and provides a microbubble obtaining device which can reduce the hindrance to water flow while avoiding an increase in the volume of the microbubble obtaining device. The present invention is achieved by the following technical solution: a microbubble obtaining device comprising a first body, the first body being provided with a water inlet, a water outlet, a scroll chamber connecting the water inlet and the water outlet, and An inlet passage connecting the vortex chamber, the outlet channel is provided with a progressive perforating pulverization refining structure for chopping the air bubbles, the axis of the vortex chamber being offset from the axis of the water inlet, the vortex chamber A water inlet connected to the water inlet is provided, and the water inlet is disposed on a side of the water inlet axis facing away from the axis of the scroll chamber. In one embodiment, the first body is provided with a first side wall for forming the scroll chamber and a first bottom wall, and the first side wall is provided with a water inlet hole communicating with the scroll chamber. In an embodiment, the first body is provided with a beam member covering the scroll chamber, and the beam member is provided with a water outlet hole connecting the scroll chamber and the water outlet, and the cross-sectional area of the water outlet hole is along the water flow. The direction is reduced. In an embodiment, the outer contour of the beam member is matched to the water outlet. In an embodiment, the beam member is integrally fabricated with the first sidewall. In an embodiment, the inlet aperture is disposed tangentially along the vortex chamber. In one embodiment, there are two inlet holes. In an embodiment, the air inlet includes a first air passage disposed along the axial direction of the scroll chamber and a second air passage disposed along a radial direction of the scroll chamber, the first air passage being in communication with the second air passage The second air passage is connected to the outside, and the first air passage is connected to the scroll chamber. In one embodiment, the number of the vortex chambers is several, and the number of the water inlets is corresponding to the number of the vortex chambers. The beneficial effect is that compared with the prior art, the present invention is a microbubble obtaining device that is disposed such that the axis of the scroll chamber is offset from the axis of the water inlet, so that the water inlet is disposed on the axis of the inlet channel and faces the axis of the scroll chamber. On the side, the water inlet of the communicating vortex chamber is changed from a narrow ring shape to a crescent shape or a column shape, thereby avoiding the passage of water flow from the narrow gap, thereby increasing the radial size of the water flow, reducing the water flow resistance, and facilitating the flow of water into the vortex chamber. In this case, the diameter of the microbubble obtaining device is not increased or even reduced. Therefore, the microbubble device can be miniaturized, conveniently connected to the water pipe or disposed inside the water pipe, and has good versatility.

The concept, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings in order to fully understand the purpose, features and effects of the present invention. It is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments, based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts, All belong to the protection scope of the utility model. In addition, all the connection relationships mentioned in the text are not directly connected to the components, but may refer to the specific implementation, by adding or reducing the connection accessories, to form a better connection structure. The various technical features in the utility model can be combined and combined without conflicting with each other. As shown in FIG. 1 and FIG. 4, a microbubble obtaining device includes a first body 1 which is provided with a water inlet 2, a water outlet, and a water inlet 2 and a water outlet. The vortex chamber 3 and an inlet passage 11 that communicates with the vortex chamber 3 are provided with a structure for generating microbubbles. As shown in Fig. 1, the center line is the inlet 2 axis and the swirl chamber 3 axis, respectively. The intake passage 11 can be connected to a compressor, an air pump, or the like, and further, the external air is used to press the air into the scroll chamber 3. Of course, the intake passage 11 can also draw in air by the negative pressure generated by the flow of water. For the scroll chamber 3, the first body 1 is provided with a first side wall 3b for forming the scroll chamber 3 and a first bottom wall 3a. The first side wall 3b is provided with a communication chamber. The water inlet hole 12a of the third portion is located toward the center of the vortex chamber 3 so that the vortex flow occurs after the water flows through the water inlet hole 12a. The inlet channel 2 is disposed on the first bottom wall 3a. The inlet passage 11 includes a first air passage disposed along the axial direction of the scroll chamber 3 and a direction along the axis perpendicular to the scroll chamber 3 (or along the scroll) a second air passage is disposed in the radial direction of the cavity 3, the first air passage is in communication with the second air passage, the second air passage is connected to the outside, the first air passage is connected to the scroll chamber 3, is convenient to manufacture, and does not affect the microbubble device Installation and use. For the first body 1, the first body 1 can be mounted or integrally formed at one end near the water inlet 2 to produce a connector, so that the microbubble obtaining device can be fixed on the faucet. Of course, the first body 1 can also be installed in a water pipe, and the first body 1 and the water pipe are sealed by a sealing ring so that water flows into the water inlet pipe 2, and then flows out through the swirling chamber 3 and the water outlet. At this time, the aforementioned water inlet 2 may be a water passage portion of the water pipe close to the first body 1, and the water inlet 2 may be omitted on the first body 1. Whereas the axis of the conventional scroll chamber 3 coincides with the axis of the water inlet 2, which will be referred to simply as the upright scroll chamber 3 or the upright scroll structure, which results in a narrow loop of the microbubble obtaining device. The water inlet 12 hinders the flow of water, resulting in difficulty in suction, however, increasing the size of the annular water inlet 12 also increases the diameter of the microbubble obtaining device, but it is difficult to apply to conventional water pipe specifications. Of course, the discussion of the beneficial effects and shortcomings of the vortex structure of the upright and offset does not affect the combination of the vortex structure of the upright or offset and the progressive perforation smash refinement structure created by the lower text. That is, the vortex structure of the upright or offset shape can be combined with the progressive perforation pulverization refinement structure of the lower text creation to form the aforementioned microbubble obtaining device. In order to solve the problem caused by the above-mentioned vortex chamber 3, as shown in FIG. 1 and FIG. 2, the axis of the vortex chamber 3 can be offset from the axis of the water inlet 2, and the vortex chamber 3 can be disposed. A water inlet 12 is provided which communicates with the water inlet 2, and the water inlet 12 is disposed on the side of the water inlet 2 axis facing away from the axis of the scroll chamber 3, that is, an offset scroll structure is employed. The microbubble obtaining device of the present embodiment is disposed such that the axis of the scroll chamber 3 is offset from the axis of the water inlet 2, so that the water inlet 12 is disposed on the side of the inlet channel 2 facing away from the axis of the scroll chamber 3, so that the water is connected. The water inlet 12 of the vortex chamber 3 is changed from a narrow ring shape to a crescent shape or a column shape, thereby preventing water flow from passing through the narrow gap, thereby increasing the radial size of the water flow, reducing the water flow resistance, and facilitating the flow of water into the vortex chamber 3 In this case, the diameter of the microbubble obtaining device is not increased or even reduced. Therefore, the microbubble obtaining device can be miniaturized, conveniently connected to the water pipe or disposed inside the water pipe, and has good versatility. In order to further illustrate the good beneficial effects produced by the present embodiment, a detailed discussion will now be made. At present, the mainstream pipe diameter of domestic water mainly has two types of outer diameter 28mm and outer diameter 22mm. For example, a pipe with an outer diameter of 28mm is used. If the bubble generating device is to be built-in, its outer diameter is required. Can not exceed 24.5mm. That is to say, the water inlet 12 can only be placed in an annular region having a width of not more than 2.5 mm, which makes the water inlet 12 have a smaller area, or the water inlet is compared with the conventional circular hole-shaped water inlet 12. The length of the outer contour of 12 increases, which hinders the flow of water. Therefore, the back pressure is greatly increased, which affects the inhalation effect of the vortex, and even causes a large drop in the flow rate of the pipeline. Therefore, the structure of the existing upright scroll chamber 3 is difficult to be built into the pipe of 28 mm diameter. In sharp contrast to the prior art, the author uses a biased vortex chamber 3, and the axis of the vortex chamber 3 is offset from the axis of the inlet 2 by a distance due to the vortex chamber 3 being biased. This distance allows the water inlet 12 to be arranged in a crescent-shaped area to obtain a radius difference of 3 mm to 4 mm, and the water inlet 12 can be narrowed to an elliptical or circular shape to narrow the outer contour length of the water inlet 12. The water flow is facilitated to pass through the water inlet 12 without increasing the outer diameter of the first body 1. In other words, the biased swirl chamber 3 can make the volume and space occupied by the microbubble obtaining device small, and is convenient to be built in Inside the household water pipe. As shown in FIG. 3, as an alternative embodiment, the microbubble obtaining device of FIG. 1 may have a plurality of the swirl chambers 3, and the number of the water inlets 12 is corresponding to the number of the swirl chambers 3. In other words, by changing the large scroll chamber 3 into a plurality of small scroll chambers 3, a plurality of water inlet ports 12 having a circular hole shape are formed, and the water inlet port 12 can be changed to be narrow. As a further development of the present microbubble obtaining device, the first body 1 is provided with a beam member 14 covering the scroll chamber 3, and the beam member 14 is provided with a water outlet for connecting the scroll chamber 3 and the water outlet. The hole 13, the cross-sectional area of the water outlet hole 13 is reduced in the direction of water flow, so that air and water can be sufficiently mixed to generate air bubbles. In addition, the change in the cross-sectional area of the water outlet hole 13 can also accelerate the water flow, compress the air bubbles and promote the bubble breakage. In order to simplify the manufacture, the outer contour of the beam member 14 can be matched with the water outlet, that is, the beam member 14 is separately manufactured without increasing the manufacturing difficulty of the vortex chamber. Of course, the beam member 14 can also be manufactured integrally with the first side wall 3b, but it needs to be improved in manufacturing. The first bottom wall 3a and the first side wall 3b need to be manufactured separately. In order to smoothly swirl the water, the water inlet hole 12a may be oriented toward the tangential direction along the scroll chamber 3. In order to avoid the limitation of the aperture of the water inlet hole 12a and the flow rate of the water flow, the number of the water inlet holes 12a may be two, that is, the auxiliary water inlet hole 12b is provided, so that the total area of the water inlet hole 12a is not reduced or increased. Big. In order to solve the problem that the filter mesh is easy to be blocked in the prior art and the microbubble level generated by the cone mesh is insufficient, as shown in FIG. 1 , FIG. 4 and FIG. 5 , the microbubble obtaining device of the present invention also adopts a progressive perforating type. The pulverized refining structure is of course applied not only to the microbubble obtaining device of the upright scroll structure but also to the microbubble obtaining device of the offset vortex structure. Specifically, the progressive perforating pulverizing refining structure of the present invention comprises a thin-walled primary pulverizing refining member 4 and a primary pulverizing refining member 5, the primary pulverizing refining member 4 and the secondary pulverizing refining The pieces 5 are each provided with a plurality (or plural) of micro-holes 6 for pulverizing the bubbles in the fluid, wherein the primary pulverizing refining member 4 and the secondary pulverizing refining member 5 cooperate to form a buffer space 8, the primary At least one quarter of the micropores 6 of the pulverizing refining member 4 and the secondary pulverizing refining member 5 are overlapped or overlapped in the fluid flow direction. According to the above microbubble obtaining device, the fluid flow direction is the axial direction of the passage in which the fluid is located. In this embodiment, a progressive perforating pulverized refining structure is provided through the provision of the thin-walled primary pulverizing refining member 4, instead of the high mesh filter screen, on the one hand, the number of holes is reduced, and the particles can be deposited. The clogging is delayed, so that the maintenance-free time of the microbubble obtaining device is prolonged; on the other hand, under the action of the throttling and beam current of the microporous channel 6, the water flows through the microchannel 6 and is sprayed turbulent, and there is a collision. The disturbance and the oscillating excitation can crush the coarse bubbles to obtain finer bubbles, and then pass through the secondary pulverization refining member 5 to further refine the bubbles to a micro-nano level to meet the demand. Further, the buffer space 8 is formed between the primary pulverization refining member 4 and the secondary pulverization refining member 5, so that the bubbles can repeatedly collide, disturb, and vibrate after passing through the primary pulverizing refining member 4; By at least one quarter of the micropores 6 of the primary pulverization refining member 4 and the secondary pulverization refining member 5 are overlapped or overlapped in the fluid flow direction, so that the bubbles can smoothly pass through the micro pulverization of the refining member 4 The tunnel 6 flows to the micropores 6 of the secondary pulverization refining member 5, thereby reducing the flow resistance of the water flow, avoiding a large back pressure resistance at the progressive perforation pulverization refining structure, and does not affect the microbubble obtaining device. The amount of intake air. Specifically, the progressive perforating pulverization refining structure adopts the manner of providing the primary pulverizing refining member 4 and the secondary pulverizing refining member 5, and uses the opened microporous passage 6 as an outflow passage of the fluid working medium, and In this way, a pulverized refinement structure having the characteristics of two-stage progressive perforation is constructed. Wherein, the micro-hole 6 on the primary pulverization refining member 4 is a first-stage perforation, and the micro-hole 6 on the secondary pulverization refining member 5 is formed as a second-stage perforation. When the fluid working medium passes through the first-stage perforation, the flow of the fluid has a jet flow due to the throttling effect and the beam action of the micro-channel 6, and the flow velocity of the fluid is accelerated and has the characteristic of turbulent flow. Under the turbulent flow collision, disturbance and shock excitation, the coarse bubbles are crushed to obtain finer bubble water, and then the finer bubbles are further pulverized and refined by the second-stage perforation, and finally become Micro bubbles. Of course, in order to make the microbubble obtaining device suitable for mounting at the end of the faucet, a final pulverizing refining member 9 may be provided, in addition to further refining the bubbles, the water may be stably discharged without affecting the effluent effect. In order to increase the ability of the microchannels 6 to break the bubbles, the diameters of the microchannels 6 or/and their equivalent diameters may be from 0.2 mm to 0.8 mm, otherwise the generated bubbles are too large or cause insufficient water flow. The equivalent diameter can be calculated by S = π d ² /4, where S is the cross-sectional area of the microchannel 6, that is, the microchannel 6 can be a non-circular structure such as a triangle, an ellipse, a polygon, and others. Various shapes. In order to enhance the strength of the primary pulverization refining member 4, at the same time, the water flow can be caused to flow along the surface of the primary pulverization refining member 4, and further, the bubbles are pulverized by the micropores 6 in a cutting manner, so that the primary pulverization refining member can be made. 4 is arranged in a conical manner, the tapered tip being arranged facing away from the secondary comminution refining member 5. In order to be able to form the buffer space 8 without increasing the number of parts and increasing the length of the microbubble obtaining device, the secondary pulverizing refining member 5 may be disposed in a tapered shape with the tapered tip facing away from the primary pulverizing refining member 4. Direction setting. In order to allow the water flow to flow along the surface of the primary pulverization refining member 4 or the secondary pulverization refining member 5 in parallel, the primary pulverizing refining member 4 or the secondary pulverizing refining member 5 may be arranged in a pyramid shape. At the same time, the primary pulverizing refining member 4 or the secondary pulverizing refining member 5 is disposed in a pyramidal shape, and it is also convenient for the micropores 6 of the two to overlap or overlap. In order to ensure that the relative positions of the micropores 6 on the primary pulverizing refining member 4 and the secondary pulverizing refining member 5 are satisfactory, the outer edge of the primary pulverizing refining member 4 may be formed to accommodate the secondary pulverizing refining member 5 The first ring 41. In order to prevent the secondary pulverizing refining member 5 from being deflected in the first ring 41, that is, in order to accurately mount the secondary pulverizing refining member 5 in the first ring 41, the secondary pulverizing refining member 5 can be made outside. The edge is provided with a positioning edge 51. For the final pulverization refining member 9, a transition space 10 is formed between the final pulverizing refining member 9 and the secondary pulverizing refining member 5 to stabilize the water flow. In order to further reduce the cost and reduce the number of parts, the primary pulverization refining member 4 is joined to the final pulverizing refining member 9 and clamps and fixes the secondary pulverizing refining member 5. The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments may be combined with each other to form new embodiments. The above embodiments are only intended to illustrate the technical solutions of the present invention, and are not intended to be limiting, and any modifications or equivalents that do not depart from the spirit and scope of the present invention are intended to be included within the scope of the present invention.

1‧‧‧ first ontology

2‧‧‧Waterway

3‧‧‧Vortex chamber

4‧‧‧Primary crushing and refining parts

5‧‧‧Secondary crushing and refining parts

6‧‧‧Microchannels

7‧‧‧Pre-space

8‧‧‧ buffer space

9‧‧‧ final crushing and refining parts

10‧‧‧Transition space

11‧‧‧ Inlet

12‧‧‧ Inlet

12a‧‧‧ water inlet

12b‧‧‧Access air intake

13‧‧‧Water outlet

14‧‧‧beam parts

3a‧‧‧ first bottom wall

3b‧‧‧First side wall

41‧‧‧ first ring

51‧‧‧ positioning edge

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the description of the embodiments will be briefly described below. It is apparent that the described drawings are only a part of the embodiments of the present invention, and not all of the embodiments, and those skilled in the art can obtain other design solutions and drawings according to the drawings without any creative work. 1 is a schematic cross-sectional view of the microbubble obtaining device of the present invention; FIG. 2 is a cross-sectional view showing the scroll cavity of the microbubble obtaining device of FIG. 1; FIG. A schematic structural view of another embodiment of the bubble obtaining device; FIG. 4 is an exploded perspective view of the microbubble obtaining device of FIG. 1 according to the creation; FIG. 5 is a progressive perforating pulverizing device in the microbubble obtaining device of FIG. Schematic diagram of the structure.

Claims (9)

A microbubble obtaining device includes a first body, the first body is provided with a water inlet, a water outlet, a scroll chamber connecting the water inlet to the water outlet, and an air inlet connecting the scroll chamber The water outlet is provided with a progressive perforating pulverizing structure for chopping the air bubbles, the axis of the vortex chamber being offset from the axis of the water inlet, the vortex chamber being provided with a water inlet connecting the water inlet. The water inlet is disposed on a side of the inlet axis that faces away from the axis of the scroll chamber. The microbubble obtaining device according to claim 1, wherein the first body is provided with a first side wall for forming the scroll chamber and a first bottom wall, and the first side wall (3b) is provided with a communication The inlet hole of the vortex chamber. The microbubble obtaining device according to claim 2, wherein the first body is provided with a beam member covering the scroll chamber, and the beam member is provided with a water outlet hole connecting the scroll chamber and the water outlet. The cross-sectional area of the water outlet hole decreases in the direction of water flow. The microbubble obtaining device according to claim 3, wherein an outer contour of the beam member is matched with the water outlet. The microbubble obtaining device according to claim 3, wherein the beam member is integrally formed with the first side wall. The microbubble obtaining device according to claim 2, wherein the water inlet hole is disposed toward a tangential direction along the scroll chamber. The microbubble obtaining device according to claim 2, wherein the number of the water inlet holes is two. The microbubble obtaining device according to any one of claims 1 to 7, wherein the air inlet includes a first air passage and a second air passage, and the first air passage is in communication with the second air passage, the second air passage Connected to the outside, the first air passage communicates with the scroll chamber. The microbubble obtaining device according to any one of claims 1 to 7, wherein the number of the vortex chambers is several, and the number of the water inlets is set corresponding to the number of the vortex chambers.