A bubble group generating device with adjustable size

Abstract

The present invention relates to the technical field of gas-liquid contact reaction equipment, and in particular to a bubble group generating device with adjustable size, which is particularly suitable for the preparation of bubble groups with different sizes and different flow rates. It includes an upper inner cylinder, a variable-angle conical baffle device, a chlorine absorber, a ring-shaped electromagnet, a lower outer cylinder, positive and negative electrodes, and a bracket; the upper inner cylinder includes a main inner cylinder and a first bracket, a second bracket, and a ring-shaped cover plate arranged on the main inner cylinder. The first bracket is used to fix the chlorine absorber, the second bracket is used to fix the ring-shaped electromagnet, the ring-shaped cover plate is covered above the lower outer cylinder, and the first bracket is located between the upper inner cylinder and the lower outer cylinder. The device has a simple structure and low cost, effectively controls the size and quantity of bubbles in the bubble group, can be completely disassembled, is convenient for cleaning and storage after use, avoids rusting of parts, designs and sets different numbers of corresponding parts according to needs, and generates the required number of bubbles.

Description

Technical Field

[0001] The invention relates to the technical field of gas-liquid contact reaction equipment, and in particular to a size-adjustable bubble group generating device, which is particularly suitable for preparing bubble groups of different sizes and different flow rates. Background Art

[0002] Gas-liquid two-phase flow is widely present in nature and industry, such as in oil transportation, food processing, biopharmaceuticals, etc. The addition of bubbles will have a significant impact on the liquid phase flow rate, apparent viscosity, and heat and mass transfer efficiency between phases. These effects are closely related to the bubble size and flow rate. Therefore, effective control of the size and flow rate of the bubble group is very important to improve industrial production efficiency.

[0003] Traditional bubble group generators use compressors to press high-pressure gas into the liquid phase through a sieve plate (a device with micropores) to achieve the purpose of injecting bubbles into the liquid phase. This method has the disadvantages of high power consumption, difficult to control bubble size, and high maintenance cost. Therefore, seeking a low-power, easy-to-maintain, and size-adjustable bubble group generator has always been the dream of the industry. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the current gas-liquid contact reaction equipment cannot effectively control the size of the bubble monomers in the bubble group, and cannot effectively control the number of bubbles in the bubble group, a size-adjustable bubble group generating device is now provided.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a size-adjustable bubble group generating device, comprising an upper inner cylinder, a variable-angle conical baffle device, a chlorine absorber, a ring-shaped electromagnet, a lower outer cylinder, positive and negative electrodes and a bracket;

[0006] The upper inner cylinder comprises a main inner cylinder and a first bracket, a second bracket and an annular cover plate arranged on the main inner cylinder, the first bracket is used to fix the chlorine absorber, the second bracket is used to fix the annular electromagnet, the annular cover plate is arranged above the lower outer cylinder, and the first bracket is located between the upper inner cylinder and the lower outer cylinder;

[0007] The variable angle conical baffle device is arranged in the main inner cylinder, and the variable angle conical baffle device includes a plurality of blades made of ferromagnetic material, and the plurality of blades are arranged in sequence on the bracket and enclosed in a frustum shape, and the positive and negative electrodes are arranged on the bracket, the positive electrode is located between the upper inner cylinder and the lower outer cylinder, and the negative electrode is located below the variable angle conical baffle device and is arranged corresponding to its large end;

[0008] The chlorine absorber is fixed on the main inner cylinder by a first bracket. The chlorine absorber is located above the positive electrode and placed on the top of the lower outer cylinder. The annular electromagnet device is fixed on the outer side of the main inner cylinder by a second bracket. The annular electromagnet device is arranged opposite to the blade, and both the annular electromagnet device and the positive and negative electrodes are electrified.

[0009] During use, the strength of the magnetism of the annular electromagnet device is controlled by adjusting the magnitude of the current, and the magnitude of the attractive magnetic force of the annular electromagnet device on the blade is changed, so that the blade rotates around the bracket and changes its own angle, thereby realizing the control of the opening or contraction of the small end of the variable-angle conical baffle device. By changing the magnitude of the current, the electrolysis rate is respectively controlled to realize the control of the flow rate and initial size of the bubbles.

[0010] In some preferred embodiments, the negative electrode is located within the range of the large end of the variable-angle conical baffle device.

[0011] In some preferred embodiments, the blade is wider at the top and narrower at the bottom, and a limiting mechanism for restricting the rotation angle of the blade on the bracket is provided on the variable-angle conical baffle device.

[0012] In some preferred embodiments, the limiting mechanism includes a circular ring and a pull wire arranged on the blade. The pull wire passes through the circular ring of the blade in sequence and is connected end to end to realize the series connection of the blades. The length of the pull wire is not greater than the outer perimeter of the large end of the variable-angle conical baffle device.

[0013] In some preferred embodiments, a hook is provided at the bottom of the blade, and a groove is provided on the bracket. The hook is hooked in the groove to realize the rotation of the blade on the bracket.

[0014] In some preferred embodiments, the bracket includes an annular blade support, an annular reinforcing ring and connecting rib strips. The annular reinforcing ring is arranged inside the annular blade support. The connecting rib strips are arranged radially along the annular blade support and the annular reinforcing ring and are fixedly connected to each other. The annular blade support is used for placing the blade.

[0015] In some preferred embodiments, a semi-circular groove for placing the positive and negative electrodes is provided on the rib strip, and the positive and negative electrodes are arranged in the semi-circular groove.

[0016] In some preferred embodiments, elastic clamping plates for fixing the positive and negative electrodes are provided on the rib strip. The elastic clamping plates are arranged corresponding to the semi-circular grooves to realize the restriction of the positive and negative electrodes between the semi-circular grooves and the elastic clamping plates. The semi-circular grooves for placing the negative electrodes are connected by buried wires so that all the negative electrode materials form a parallel connection for operation.

[0017] In some preferred embodiments, the positive and negative electrode materials are a carbon rod and a platinum wire respectively. They are fixed on the semi-circular groove by the elastic clamping plates provided on the rib strip and are connected to a DC power supply.

[0018] Some preferred embodiments further include a circular bottom plate, which is fixedly connected to the lower outer cylinder to form a cylindrical structure for containing electrolyte.

[0019] The beneficial effects of the present invention are as follows: 1. The device has a simple structure and low cost. 2. The device can effectively control the size and quantity of bubbles in the bubble group. 3. The components of the device can be completely disassembled, facilitating cleaning and storage after use and avoiding rusting of the components. 4. Different numbers of corresponding components can be designed and set according to needs to generate the required number of bubbles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the drawings and embodiments.

[0021] Figure 1 Structural schematic diagram of the present invention;

[0022] Figure 2 Structural schematic diagram of the upper inner cylinder of the present invention;

[0023] Figure 3 Front view of the variable-angle conical baffle device of the present invention;

[0024] Figure 4 Top view of the variable-angle conical baffle device of the present invention;

[0025] Figure 5 Front view of the bracket of the present invention;

[0026] Figure 6 Top view of the bracket of the present invention;

[0027] Figure 7 Front view of the blade of the present invention;

[0028] Figure 8 Right view of the blade of the present invention.

[0029] Wherein: 1. Upper inner cylinder, 1-1. Main inner cylinder, 1-2. Annular cover plate, 1-3. First bracket, 1-4. Second bracket, 2. Variable-angle conical baffle device, 2-1. Pull wire, 2-2. Blade, 2-2-1. Ring, 2-2-2. Hook, 3. Chlorine absorber, 4. Annular electromagnet, 5. Lower outer cylinder, 6. Negative electrode, 7. Positive electrode, 8. Bracket, 8-1. Elastic clamping plate, 8-2. Positive electrode groove, 8-3. Annular reinforcing ring, 8-4. Annular blade bracket, 8-5. Connecting rib, 8-6. Embedded wire, 8-7. Negative electrode groove, 9. Circular bottom plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The present invention will be further described in detail below in conjunction with embodiments:

[0031] The present invention is not limited to the following specific embodiments. Those of ordinary skill in the art can implement the present invention in other various specific embodiments according to the disclosed content of the present invention. Or, any simple changes or modifications made by adopting the design structure and concept of the present invention fall within the protection scope of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] As Figure 1 shown, a bubble group generating device with adjustable size, the device includes an upper inner cylinder 1, a variable-angle conical baffle device 2, a chlorine absorber 3, an annular electromagnet 4, a lower outer cylinder 5, positive and negative electrodes, a bracket 8 and a circular bottom plate 9. The positive and negative electrodes include a negative electrode 6 and a positive electrode 7;

[0035] After placing the bracket 8 on the circular bottom plate 9 first, the lower outer cylinder 5 and the circular bottom plate 9 are fixedly connected by a flange. Then, the chlorine absorber 3 and the annular electromagnet 4 are placed on the first bracket 1-3 and the second bracket 1-4 at the corresponding positions of the inner cylinder 1. Since the diameter of the upper inner cylinder 1 is smaller than that of the lower outer cylinder 5, one end of the upper inner cylinder 1 is inserted into the lower outer cylinder 5. At the same time, the annular cover plate 1-2 is covered above the lower outer cylinder 5. Then, the annular cover plate 1-2 and the lower outer cylinder 5 are connected together by bolt flanges, forming a cylindrical container for holding the electrolyte between the upper inner cylinder 1, the lower outer cylinder 5 and the circular bottom plate 9. In order to place the positive electrode 7 and the negative electrode 6 in different annular regions and enable the electrolyte to form a connected region, there is a certain gap between the lower end of the upper inner cylinder 1 and the circular bottom plate 9 without contact;

[0036] During operation, the electrolyte is placed in the cylindrical container formed between the upper inner cylinder 1, the lower outer cylinder 5 and the circular bottom plate 9. Then, a direct current is provided by a direct current power supply, and the direct current power supply is connected to the positive electrode 7 (carbon rod) and the negative electrode 6 (platinum wire) with wires and placed in the electrolyte (aqueous solution of sodium chloride or potassium chloride) to form a circuit. After the aqueous solution is electrolyzed, an oxidation reaction occurs at the positive electrode 7 to generate chlorine bubbles of micron size, and a reduction reaction occurs at the negative electrode 6 to generate hydrogen bubbles of micron size. The number of bubbles can be achieved by adjusting the magnitude of the current. Since the generated chlorine bubbles are poisonous, the chlorine absorber 3 is fixed above the positive electrode 7 to absorb the chlorine generated by the positive electrode 7;

[0037] In order to control the size of the hydrogen bubbles, a blade 2-2 with a variable angle is arranged above the negative electrode 6. The blade 2-2 encloses a frustum of a cone, and the negative electrode 6 is located inside the large end of the frustum of the cone. Since the micro hydrogen bubbles generated by electrolysis will climb along the blade 2-2 with a variable angle above the negative electrode 6, on the one hand, the micro hydrogen bubbles will decelerate when they touch the blade 2-2 with a variable angle, and on the other hand, the presence of the blade 2-2 can prevent the micro bubbles from rising in a straight line and extend the rising path of the bubbles, which causes the micro bubbles generated later to have time to catch up with and merge with the micro bubbles generated at the previous moment, thus forming bubbles with a larger diameter;

[0038] The annular electromagnet 4 is fixed to the outside of the main inner cylinder 1-1 by the first bracket 1-3 and is flush with the height when the blade 2-2 of the variable-angle conical baffle device 2 is at its minimum rotation angle. By changing the magnitude of the current, the magnetic strength of the annular electromagnet 4 is changed, thereby controlling the angle between the blade 2-2 and the horizontal plane, realizing the control of the opening or contraction of the small end of the variable-angle conical baffle device 2. That is, by changing the inclination degree of the blade 2-2, the crawling distance of the microbubbles is changed to control the size of the bubble diameter to a certain extent. When the blade 2-2 is perpendicular to the ground, the microbubbles generated by electrolysis are basically not affected and can rise freely. At this time, the diameter of the bubbles is the smallest, which is the initial size of the electrolytic bubbles. When the included angle between the blade 2-2 and the horizontal plane is the smallest, the microbubbles generated by electrolysis are most affected, and the diameter of the bubbles is the largest. Finally, by controlling the strength of the magnetic field of the annular electromagnet 4, the angle between the blade 2-2 and the horizontal plane is adjusted to generate bubbles of the required size. These bubbles will enter the expected area along the upper end of the blade 2-2, thereby achieving the preparation of a bubble group with uniform distribution, controllable bubble size and flow rate.

[0039] As Figure 2 shown, the upper inner cylinder 1 includes a main inner cylinder 1-1, an annular cover plate 1-2, a first bracket 1-3 and a second bracket 1-4. The main inner cylinder 1-1 separates the electrolysis area (chlorine gas and hydrogen gas) to prevent chlorine gas from entering the negative electrode 6 area. The annular cover plate 1-2 is welded to the upper position of the outer wall surface of the main inner cylinder 1-1 and is connected to the lower outer cylinder 5 by bolt flanges. The first bracket 1-3 is below the annular cover plate 1-2. The first bracket 1-3, the annular cover plate 1-2 and the lower outer cylinder 5 jointly fix the chlorine absorber 3. The second bracket 1-4 is outside the main inner cylinder 1-1 and is flush with the height when the blade 2-2 is at the minimum angle, and relies on it to fix the annular electromagnet 4.

[0040] As Figures 3 - 4 shown, the variable-angle conical baffle device 2 includes thirty-two trapezoid-like blades 2-2 arranged in sequence on the annular blade bracket 8-4 of the bracket 8 and enclosing a frustum of a cone. The blades 2-2 have a slight circumferential arc to enclose a frustum of a cone. The bottom of the blade 2-2 is provided with a hook 2-2-2. The blade 2-2 is rotationally connected to the groove of the annular blade bracket 8-4 through the hook 2-2-2. The trapezoid-like blades 2-2 are wider at the top and narrower at the bottom, and a circular ring 2-2-1 is provided on the outside. During operation, all the blades 2-2 are strung together by an inelastic wire 2-1 passing through the circular ring 2-2-1. The length of the wire 2-1 is the circumference of the cylinder (outer edge) formed when the blades 2-2 are arranged vertically, so as to ensure that the angle between the blade 2-2 and the horizontal plane is not greater than 90°, and realize the limit of the blade 2-2.

[0041] As Figures 5 - 8As shown, the bracket 8 includes three annular vane brackets 8-4, an annular reinforcing ring 8-3, and four connecting ribs 8-5 distributed at 90°. The diameters of the three annular vane brackets 8-4 gradually decrease and are arranged within the annular reinforcing ring 8-3. At the same time, the four connecting ribs 8-5 distributed at 90° are all welded between the three annular vane brackets 8-4 and the annular reinforcing ring 8-3. The three annular vane brackets 8-4 are used to connect the vanes 2-2 of the variable-angle conical baffle device 2, and the annular reinforcing ring 8-3 ensures the overall stability of the structure. Sixteen semi-circular grooves are provided along the axial direction of the connecting ribs 8-5. The sixteen semi-circular grooves include four positive grooves 8-2 (distributed inside the annular reinforcing ring 8-3) and twelve negative grooves 8-7 (distributed inside each annular vane bracket 8-4). The negative electrodes 6 in the negative grooves 8-7 are connected by buried wires 8-6. The buried wires 8-6 are distributed below the negative grooves 8-7 and are in contact with the negative electrodes 6. A pair of symmetric elastic clamping plates 8-1 are provided on all the semi-circular grooves to fix the positive electrode 7 or the negative electrode 6. Both are fixed on the connecting ribs 8-5 by the elastic clamping plates 8-1. The material of the positive electrode 7 is an annular carbon rod, and the material of the negative electrode 6 is an annular platinum wire.

[0042] During use, first connect the power supply of the positive electrode 7 and the negative electrode 6 to generate bubbles, adjust the current size to control the generation speed of the bubbles. After stabilization, adjust the current size of the annular electromagnet 4 to change the angle of the vane 2-2 on the variable-angle conical baffle device 2. After the bubble size is stabilized, fix the current to generate a bubble group that meets the expected size and flow rate.

[0043] Based on the ideal embodiments of the present invention as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An adjustable-size bubble group generating device, characterized in that: It includes an upper inner cylinder, a variable-angle conical baffle device, a chlorine absorber, an annular electromagnet, a lower outer cylinder, positive and negative electrodes, and a bracket; The upper inner cylinder includes a main inner cylinder and a first bracket, a second bracket, and an annular cover plate arranged on the main inner cylinder. The first bracket is used to fix the chlorine absorber, the second bracket is used to fix the annular electromagnet, the annular cover plate covers above the lower outer cylinder, and the first bracket is located between the upper inner cylinder and the lower outer cylinder; The variable-angle conical baffle device is arranged in the main inner cylinder. The variable-angle conical baffle device includes several blades made of ferromagnetic materials. The several blades are arranged in sequence on the bracket and enclose a frustum of a cone. The positive and negative electrodes are arranged on the bracket. The positive electrode is located between the upper inner cylinder and the lower outer cylinder, and the negative electrode is located below the variable-angle conical baffle device and corresponds to its large end; The chlorine absorber is fixed on the main inner cylinder through the first bracket. The chlorine absorber is located above the positive electrode and on the top of the lower outer cylinder. The annular electromagnet device is fixed on the outer side of the main inner cylinder through the second bracket. The annular electromagnet device is arranged opposite to the blades. Both the annular electromagnet device and the positive and negative electrodes are energized; During use, the strength of the magnetic force of the annular electromagnet device is controlled by adjusting the magnitude of the current, and the magnitude of the attracting magnetic force of the annular electromagnet device on the blades is changed, so that the blades rotate around the bracket and change their own angles, thereby realizing the control of the opening or contraction of the small end of the variable-angle conical baffle device; It further includes a circular bottom plate. The circular bottom plate is fixedly connected with the lower outer cylinder to form a cylindrical structure capable of holding electrolyte. The bracket is placed on the circular bottom plate. The lower outer cylinder and the circular bottom plate are fixedly connected by a flange. The diameter of the upper inner cylinder is smaller than that of the lower outer cylinder. One end of the upper inner cylinder is inserted into the lower outer cylinder, and the lower end of the upper inner cylinder does not contact the circular bottom plate and there is a certain distance; 2. The size-adjustable bubble group generating device according to claim 1, wherein: The negative electrode is located within the range of the large end of the variable-angle conical baffle device.

3. The adjustable-size bubble group generating device according to claim 1, wherein: The blades are wider at the top and narrower at the bottom. A rotation angle limiting mechanism for restricting the rotation of the blades on the bracket is arranged on the variable-angle conical baffle device.

4. The size-adjustable bubble group generating device according to claim 3, characterized in that: The limiting mechanism includes a circular ring and a pull wire arranged on the blade. The pull wire passes through the circular rings on the blade in sequence and is connected end to end to realize the series connection of the blades. The length of the pull wire is not greater than the outer circumference of the large end of the variable-angle conical baffle device.

5. A size-adjustable bubble group generating device according to any one of claims 1-4, characterized in that: Hooks are arranged at the bottom of the blade, and grooves are arranged on the bracket. The hooks are hooked in the grooves to realize the rotation of the blade on the bracket.

6. The size-adjustable bubble group generating device according to claim 1, wherein: The bracket includes an annular blade support, an annular reinforcing ring, and connecting rib strips. The annular reinforcing ring is arranged inside the annular blade support. The connecting rib strips are arranged radially along the annular blade support and the annular reinforcing ring and are fixedly connected to each other.

7. An adjustable-size bubble group generating device according to claim 6, characterized in that: Semicircular grooves for placing the positive and negative electrodes are arranged on the rib strips. The positive and negative electrodes are arranged in the semicircular grooves.

8. The size-adjustable bubble group generating device according to claim 7, characterized in that: Elastic clamping plates for fixing the positive and negative electrodes are arranged on the rib strips. The elastic clamping plates are arranged corresponding to the semicircular grooves to realize restricting the positive and negative electrodes between the semicircular grooves and the elastic clamping plates.

9. The size-adjustable bubble group generating device according to claim 1, characterized in that: The materials of the positive and negative electrodes are carbon rods and platinum wires respectively.

Images