A disc-type ultrafine bubble generator

Abstract

The present invention relates to the field of bubble generation technology, and in particular to a disc-type ultrafine bubble generator, comprising a disc body and a guide cavity, wherein the disc body is provided with a water inlet, an air inlet, and a water outlet; the guide cavity is provided in the disc body and vertically connected to the water inlet; one end of the water outlet is connected to an air duct, which is connected to the guide cavity; the air inlet is connected to the air duct; in the process of a liquid medium being pressed from the water inlet into the guide cavity, ultrafine bubbles are generated due to negative pressure, and the liquid medium generating ultrafine bubbles is then pressed toward the water outlet, and negative pressure is again generated in the process, and the gas medium is sucked in through the air inlet by the negative pressure, and after passing through the air duct, it is fully mixed and cut with the liquid medium to form ultrafine bubbles, which are finally released from the water outlet. In the present invention, after the liquid is mixed with the gas, it violently collides, cuts, and stirs, generating a large number of ultrafine bubbles. The large number of nano-level bubbles generated above pass through the disc and are sprayed in all directions at a 360-degree angle, resulting in a more uniform dispersion.

Description

Technical Field

[0001] The invention relates to the technical field of bubble generation, in particular to a disc-type ultrafine bubble generator. Background Art

[0002] Ultrafine bubbles have extremely wide applications in real life and production, and can be used in various fields of life, such as fruit and vegetable cleaning, aquaculture, crop yield increase, sewage purification, health beverages, and medical treatment. However, the ultrafine bubble water produced by existing ultrafine bubble generating devices has too low a concentration, too few ultrafine bubbles, and cannot be easily preserved in the water for a long time. Moreover, due to the large size and high power consumption of existing ultrafine bubble generating devices, the ultrafine bubble generating equipment has low production efficiency and a limited scope of application, making it difficult to be widely used in daily life and unable to meet the actual needs of multi-purpose use.

[0003] In response to the above problems, the applicant proposed a technical solution for an ultrafine bubble generating device (authorization announcement number CN210251896U) on May 16, 2019 (hereinafter referred to as "the solution"). Since the input amount of the first medium is greater and the contact area is greater at the same time, the first medium and the second medium are mixed more fully, thereby producing nano-level bubbles with higher concentration and larger number. Therefore, it is easier to be widely used in the field of daily life and achieve satisfactory results to meet the practical needs of multiple uses. However, the solution still has the following shortcomings: the first medium is injected into the chamber through the first inlet, the second medium is mixed with the first medium in the chamber and then directly goes to the diversion cavity through the medium channel to form ultrafine bubbles, which are then discharged from the mixing outlet. During this process, since the shape of the first inlet and the chamber is strip-shaped, negative pressure cannot be achieved, so the effect of sufficient mixing and cutting of the liquid will need to be improved. The diversion cavity is directly connected to the mixing outlet, and further mixing and cutting cannot be achieved during the diffusion process. In view of this, the applicant once again proposed a disc-type ultrafine bubble generator to solve the shortcomings of the solution. Summary of the Invention

[0004] The object of the present invention is to provide a disc-type ultrafine bubble generator to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A disc-type ultrafine bubble generator comprises a disc body and a guide cavity.

[0007] The disc body is provided with a water inlet, an air inlet and a water outlet;

[0008] The diversion cavity is arranged in the disc body and is vertically connected to the water inlet;

[0009] One end of the water outlet is connected to the air channel, and the air channel is connected to the air inlet;

[0010] In the process of the liquid medium being pressed into the diversion cavity from the water inlet, ultrafine bubbles are generated due to negative pressure. The liquid medium that generates ultrafine bubbles is then pressed toward the water outlet and negative pressure is generated again in this process. The gas medium is sucked into the air inlet by the negative pressure, and after passing through the airway, it is fully mixed and cut with the liquid medium to form ultrafine bubbles, which are finally released from the water outlet.

[0011] Furthermore, an inner flow disk is provided in the disk body, and the number of the inner flow disks may be the same as or different from the number of the water inlets. There may be only one water inlet, and the inner flow disks are respectively communicated with the water inlet and the guide cavity.

[0012] Furthermore, the water inlet is connected to the inner flow disk through a connecting throat, wherein: taking the upper half of the disc as an example, the water inlet gradually narrows from top to bottom, and the inner flow disk gradually widens from top to bottom, and the inner diameter of the narrow end of the water inlet is less than or equal to the inner diameter of the narrow end of the inner flow disk.

[0013] Furthermore, the end of the airway is connected to the inner flow cavity.

[0014] Furthermore, the disc body includes an upper disc body and a lower disc body, which are fixedly installed at a certain distance.

[0015] Furthermore, there is at least one water inlet, air inlet and water outlet, which are arranged on the upper disk body or the lower disk body.

[0016] Furthermore, the water inlet includes water inlet I and water inlet II (or there can be only one), which are respectively arranged on the upper disc body and / or the lower disc body (that is, there can be two water inlets, or only one, and the other is sealed and does not allow water to enter), and there is at least one air inlet, which is respectively arranged on the upper disc body and / or the lower disc body, and the water outlet is a 360-degree water outlet.

[0017] Furthermore, the water outlet gradually widens from the inner end to the outer end, and the air inlet is connected to the airway through the expansion groove.

[0018] Furthermore, the air inlet is connected to a detachable air pump, and the gas can be sucked into the air inlet by itself. When the suction force is insufficient, the gas can be supplied by an external air source.

[0019] Furthermore, the material of the disc includes but is not limited to metal, plastic, ceramic, silicon-containing material and carbon-containing material, and its shape includes but is not limited to circle, rectangle, square or polygon.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, the liquid medium (usually water) enters the throat pipe I and the throat pipe II through the water inlet I and the water inlet II respectively. When the liquid (medium) passes through the throat pipe, the flow cross-section decreases sharply, and after passing through the throat pipe, the flow cross-section suddenly increases, generating an instantaneous negative pressure so that the liquid generates a large number of ultrafine bubbles for the first time.

[0022] The two parts of gas-liquid mixture at water inlet I and water inlet II collide with each other in the diversion cavity, gather and radiate evenly to the surroundings.

[0023] The liquid in the guide cavity enters the annular inner flow cavity at a higher flow rate through the gap between the upper and lower inner flow plates. As the flow cross-section decreases sharply, the liquid flow rate suddenly increases, and the cross-sectional area at the outlet suddenly increases, resulting in a sudden decrease in the liquid flow rate and the formation of a negative pressure area in the inner flow cavity.

[0024] In this invention, the distance between the upper and lower discs is fixed, and the connection between the two discs is made up of multiple cylinders, cubes, or rectangular parallelepipeds (i.e., the external shape of the bolt holes). When water moves from the interior of the disc to the water outlet, it is compressed when passing through the two discs. The distance between the two discs is smaller than its widest dimension. After passing through the distance between the two discs, it is released, generating ultrafine bubbles again. (The discs can be cylindrical, cube, rectangular parallelepiped, or polygonal, as long as the gap between the two monomers is initially small and then large.)

[0025] Due to the effect of pressure difference, the gas medium (usually air) is sucked into the expansion slot through the air inlet in a self-priming manner, and is fully mixed with the high-flow liquid after passing through the air channel for cutting.

[0026] The fully mixed gas-liquid mixture enters the water outlet, where the gas and liquid continue to violently collide and cut with each other multiple times, forming a large number of ultrafine bubbles.

[0027] Finally, the gas-liquid mixture containing ultrafine bubbles is sprayed and diffused 360° at high speed and uniformly into the external water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a stereoscopic diagram of the disc-type ultrafine bubble generator of the present invention.

[0029] Figure 2 It is a top view of the disc-type ultrafine bubble generator of the present invention.

[0030] Figure 3 It is a longitudinal sectional view of the disc-type ultrafine bubble generator of the present invention.

[0031] Figure 4 The disc-type ultrafine bubble generator of the present invention Figure 1 Cross-sectional view at AA in the middle.

[0032] In the figure: 1-upper plate, 2-lower plate, 3-water inlet I, 4-water inlet II, 5-throat I, 6-throat II, 7-upper inner flow plate, 8-lower inner flow plate, 9-guide cavity, 10-inner flow cavity, 11-air inlet, 12-expansion slot, 13-air duct, 14-water outlet, 15-bolt hole, 16-water inlet, 17-inner flow plate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "set / mounted," "sleeved," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0036] See also Figure 1-4 , the present invention provides a technical solution:

[0037] A disc-type ultrafine bubble generator comprises a disc body and a guide cavity 9.

[0038] The disc is provided with a water inlet, an air inlet 11 and a water outlet 14;

[0039] The diversion cavity 9 is arranged in the disc body and is vertically connected to the water inlet;

[0040] One end of the water outlet 14 is connected to the air duct 13, and the air duct 13 is connected to the air inlet 11;

[0041] In the process of the liquid medium being pressed into the diversion cavity 9 from the water inlet, ultrafine bubbles are generated due to negative pressure and expansion. The liquid medium that generates ultrafine bubbles is then compressed and pushed toward the water outlet 14 and negative pressure is generated again in this process. The gas medium is sucked into the air inlet by the negative pressure, and after passing through the air channel 13, it is fully mixed and cut with the liquid medium to form ultrafine bubbles, and finally released from the water outlet 14.

[0042] Specifically, an inner flow disc 17 is provided in the disc body. The inner flow disc 17 is communicated with the water inlet and the guide cavity 9 respectively. The inner flow disc 17 includes an upper inner flow disc 7 and a lower inner flow disc 8.

[0043] Specifically, the water inlet is connected to the inner flow disk 17 through a connecting throat, wherein: the water inlet gradually narrows from top to bottom, the inner flow disk gradually widens from top to bottom, the inner diameter of the narrow end of the water inlet is less than or equal to the inner diameter of the narrow end of the inner flow disk, and the throat includes throat I5 and throat II6.

[0044] Specifically, the end of the air channel 13 is connected to the inner flow cavity 10 .

[0045] Specifically, the disk body includes an upper disk body 1 and a lower disk body 2, which are fixedly installed.

[0046] Specifically, at least one of the water inlet 16 , the air inlet 11 and the water outlet 14 is provided on the upper disk 1 or the lower disk 2 .

[0047] Specifically, the water inlet 16 includes water inlet I3 and water inlet II4, which are respectively arranged on the upper disk body 1 and / or the lower disk body 2. There is at least one air inlet 11, which is respectively arranged on the upper disk body 1 and the lower disk body 2. The water outlet 14 is a 360-degree water outlet.

[0048] Specifically, the water outlet 14 gradually widens from the inner end to the outer end, and the air inlet 11 is connected to the air channel 13 through the expansion slot 12 .

[0049] Specifically, the air inlet 11 is connected to a detachable air pump, and the gas can be sucked into the air inlet by itself. When the suction force is insufficient, the gas can be supplied by an external air source.

[0050] Specifically, the material of the disc includes but is not limited to metal, plastic, ceramic, silicon-containing material and carbon-containing material, and its shape includes but is not limited to round and rectangular.

[0051] The technical principle of the present invention is (taking two water inlets as an example):

[0052] The liquid medium (usually water) enters the throat pipe I5 and the throat pipe II6 through the water inlet I3 and the water inlet II4 respectively. The flow cross-section of the liquid (medium) decreases sharply when passing through the throat pipe, and then suddenly increases after passing through the throat pipe, generating an instantaneous negative pressure, which causes the liquid to produce a large number of ultrafine bubbles for the first time.

[0053] The gas-liquid mixtures at the water inlet I3 and the water inlet II4 collide with each other in the guide cavity 9 and radiate evenly to the surroundings after being gathered.

[0054] The liquid in the guide cavity 9 enters the annular inner flow cavity 10 at a higher flow rate through the gap between the upper and lower inner flow plates. As the flow cross-section decreases sharply, the liquid flow rate suddenly increases, and the cross-sectional area at the outlet end suddenly increases, resulting in a sudden decrease in the liquid flow rate and the formation of a negative pressure area at the inner flow cavity 10.

[0055] Due to the effect of pressure difference, the gas medium (usually air) is sucked into the expansion slot 12 through the air inlet 11 in a self-priming manner, and is fully mixed with the high-flow liquid through the air channel 13 for cutting.

[0056] The fully mixed gas-liquid mixture enters the water outlet 14 , where the gas and liquid continue to violently collide and cut with each other multiple times, forming a large number of ultrafine bubbles.

[0057] Finally, the gas-liquid mixture containing ultrafine bubbles is sprayed and diffused 360° at high speed and uniformly into the external water body.

[0058] Description of the structure of the present invention:

[0059] The liquid first enters the throat pipe I5 and throat pipe II6 through the water inlet I3 and the water inlet II4 → After passing through the throat pipe, the liquid generates small bubbles due to the negative pressure and enters the guide chamber 9 → The liquid enters the inner flow chamber 10 along the gap between the upper and lower inner flow plates in the guide chamber 9 → The flow cross-section of the inner flow chamber 10 decreases sharply, increasing the liquid flow rate → It expands rapidly again, forming a negative pressure area in the liquid → The gas is sucked in and mixed with the liquid using the negative pressure → The gas-liquid mixture collides and cuts violently at the water outlet 14 to form ultrafine bubbles, which are then released.

[0060] The disc-type nozzle consists of an upper (circular) disc body 1, a lower (circular) disc body 2, an upper inner flow disc 7 and a lower inner flow disc 8.

[0061] The upper and lower discs are provided with bolt holes 15 and air inlets for fixing and air intake.

[0062] The upper and lower discs are provided with expansion slots 12 for 360° uniform distribution of gas.

[0063] The water inlet can be fixed by using a threaded connection, a pagoda head connection, or other connection methods.

[0064] The air inlet 11 can be fixed by threaded connection, also can be fixed by available pagoda head connection, also can be fixed by available other methods.

[0065] In the present invention:

[0066] Before entering the diversion chamber 9, the liquid undergoes compression through the water inlet and throat, then rapidly expands and releases, generating negative pressure. This creates a gas-liquid mixture that enters the diversion chamber, improving the efficiency of ultrafine bubble generation. The water inlet can also be equipped with multiple throat sections to allow for multiple compression and release steps. This section, the throat, may or may not be present.

[0067] The liquid is compressed and released for the second time in the inner flow cavity 10 to generate negative pressure, and the external gas is sucked in through the air inlet, the expansion slot 12, and the airway 13. After mixing with the liquid, it collides, cuts, and stirs violently, generating a large number of ultrafine bubbles.

[0068] The large number of nano-level bubbles generated above pass through the disc and are sprayed in all directions at 360°, making them more evenly dispersed.

[0069] The generator is provided with an annular (gas) expansion groove 12, and the inhaled gas can be evenly diffused into the 360-degree expansion groove 12 and then evenly mixed with the liquid, making the gas-liquid mixing more efficient. The shape and size of the expansion groove 12 are not limited.

[0070] The generator is provided with an air passage 13 , and the gas expansion slot 12 is connected to the air passage 13 , so that the inhaled gas can be evenly inhaled into the air passage 13 .

[0071] If the negative pressure is insufficient, an external air pump can be connected to press the gas into the expansion slot 12 in a positive direction, and the gas is mixed with the liquid and then ejected.

[0072] The water outlet can be expanded in a conical shape, an arc shape, or a multi-section conical arc shape, with no angle restriction.

[0073] The flow expansion section of the inner flow disk can be arc-shaped, conical, truncated cone, or multi-section conical arc, with no angle restriction.

[0074] The end of the inner flow disc is set with a slope, and the liquid is released to generate negative pressure, which improves the gas-liquid mixing and cutting efficiency. The slope angle and size are not limited.

[0075] Materials include but are not limited to metals, plastics, ceramics, silicon-containing materials, carbon-containing materials, etc.

[0076] It can be two water inlets, one above the other, which can make the liquid entering the diversion cavity 9 collide with each other to evenly fill the entire diversion cavity and radiate out evenly. It can also be a single water inlet.

[0077] The shapes of the upper and lower discs can be variable (circular, rectangular or irregular).

[0078] The upper and lower inflow plates can be changed in shape (circular, rectangular or irregular).

[0079] The number of the air inlet 11 can be one or more.

[0080] According to the actual use environment, the nozzle units can be used in series or in parallel.

[0081] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A disc-type ultrafine bubble generator, comprising a disc body and a flow guide cavity (9), characterized in that: The disk body is provided with a water inlet (16), an air inlet (11) and a water outlet (14); The diversion cavity (9) is arranged in the disc body and is vertically connected to the water inlet; One end of the water outlet (14) is connected to the airway (13), and the airway (13) is connected to The air inlet (11) is connected; Ultrafine bubbles are generated due to negative pressure during the process of the liquid medium being pressed into the diversion cavity (9) from the water inlet (16). The liquid medium generating the ultrafine bubbles is then pressed toward the water outlet (14) and negative pressure is generated again during this process. The gas medium is sucked in from the air inlet by the negative pressure, passes through the airway (13), and is fully mixed and cut with the liquid medium to form ultrafine bubbles, which are finally released from the water outlet (14). An inner flow disc (17) is provided in the disc body, and the inner flow disc (17) is communicated with the water inlet (16) and the diversion cavity (9) respectively; The water inlet is connected to the inner flow disc (17) through a connecting throat, wherein: the water inlet located at the top gradually narrows from top to bottom, the inner flow disc (17) located at the top gradually widens from top to bottom, and the inner diameter of the narrow end of the water inlet is less than or equal to the inner diameter of the narrow end of the inner flow disc (17); The disk body comprises an upper disk body (1) and a lower disk body (2), both of which are fixedly installed; The water inlet comprises a water inlet I (3) and a water inlet II (4), wherein the water inlet I (3) is arranged on the upper disc body (1), and the water inlet II (4) is arranged on the lower disc body (2); the air inlet (11) is respectively arranged on the upper disc body (1) and the lower disc body (2), and the water outlet (14) is for 360-degree water outlet; The water outlet (14) gradually widens from the inner end to the outer end, and the air inlet (11) is connected to the air channel (13) through the expansion groove (12); When water moves from the inside of the disc body to the water outlet (14), it is compressed when passing through the upper disc body (1) and the lower disc body (2), and the spacing between the upper disc body (1) and the lower disc body (2) is smaller than its maximum diameter. After passing through the spacing between the upper disc body (1) and the lower disc body (2), the water is released and ultrafine bubbles are generated again.

2. A disc-type ultrafine bubble generator according to claim 1, characterized in that: The end of the airway (13) is connected to the inner flow cavity (10).

3. The disc-type ultrafine bubble generator according to claim 1, characterized in that: The air inlet (11) can be connected to a detachable gas power source and can be started when the gas pressure is insufficient. The material of the disc includes but is not limited to metal, plastic, ceramic, silicon-containing material and carbon-containing material, and its shape includes but is not limited to circle, rectangle, square or polygon.

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