Three-stage rotational flow releaser special for micro-nano bubbles

Abstract

According to the three-stage rotational flow releaser special for the micro-nano bubbles, the small end of a reducing reducer 2 is inserted into one end of a single-head external thread 1, and the single-head external thread 1 and the reducing reducer 2 are connected in an inserted mode; the fixing plate 3, the resonance piece 6 and the supporting piece 8 are arranged at intervals, the sleeves 5 are arranged between the fixing plate 3 and the resonance piece 6 and between the resonance piece 6 and the supporting piece 8, the cross-shaped round head lengthened screws 4 penetrate through the sleeves 5 and extend out of the supporting piece 8, and the tail ends of the cross-shaped round head lengthened screws 4 are locked and fixed through the nylon locking nuts 7. The end of the fixing plate 3 is inserted into the large-head end of the reducing reducer 2, and one end of the guide cylinder 11 is also inserted into the large-head end of the reducing reducer 2 at the same time. At present, the application efficiency and effect of the microbubble technology need to be further improved due to the defects that a traditional microbubble generator is complex in structure, difficult to machine, low in inflation volume, not high in bubble size uniformity and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-nano bubble generation, in particular to a three-stage cyclone releaser special for micro-nano bubbles. Background Art

[0002] The tiny bubbles in the liquid are called microbubbles when the bubble diameter is below 100μm, and nanobubbles when the diameter is below 100nm. Micro-nano bubbles refer to bubbles with a diameter between tens of microns and hundreds of nanometers when they occur. This type of bubble is between microbubbles and nanobubbles, and has physical and chemical properties that regular bubbles do not have.

[0003] Micro-nano bubble characteristics:

[0004] (1) Large specific surface area

[0005] The relationship between the volume and surface area of ​​bubbles can be expressed by a formula. The volume formula of bubbles is V=4π / 3r, and the surface area formula of bubbles is A=4πr. Combining the two formulas, we get A=3V / r, that is, Vtotal=n·A=3Vtotal / r. In other words, when the total volume remains unchanged (V remains unchanged), the total surface area of ​​bubbles is inversely proportional to the diameter of a single bubble. According to the formula, compared with 10 micron bubbles and 1 mm bubbles, the specific surface area of ​​the former is theoretically 100 times that of the latter at a certain volume. The contact area between air and water increases 100 times, and the speed of various reactions also increases 100 times.

[0006] (2) Slow rising speed

[0007] According to Stoke's law, the rising speed of bubbles in water is proportional to the square of the bubble diameter. The smaller the bubble diameter, the slower the rising speed of the bubble. From the relationship between the rising speed of bubbles and the bubble diameter, it can be seen that the rising speed of bubbles with a diameter of 1mm in water is 6m / min, while the rising speed of bubbles with a diameter of 10μm in water is 3mm / min, which is 1 / 2000 of the former. If the increase in specific surface area is taken into account, the solubility of micro-nano bubbles is 200,000 times greater than that of ordinary air.

[0008] (3) Self-pressurized dissolution

[0009] There is a gas-liquid interface around the bubbles in the water, and the existence of the gas-liquid interface makes the bubbles affected by the surface tension of the water. For bubbles with a spherical interface, the surface tension can compress the gas in the bubble, so that more gas in the bubble dissolves into the water. According to the Young-Laplace equation, P=2σ / r, P represents the value of the pressure rise, σ represents the surface tension, and r represents the bubble radius. The pressure on bubbles with a diameter of more than 0.1mm is very small and can be ignored, while tiny bubbles with a diameter of 10μm will be subject to a pressure of 0.3 atmospheres, and bubbles with a diameter of 1μm will be subject to a pressure of up to 3 atmospheres. The dissolution of micro-nano bubbles in water is a process in which the bubbles gradually shrink. The rise in pressure will increase the dissolution rate of the gas. With the increase in specific surface area, the speed of bubble shrinkage will become faster and faster, and finally dissolve into the water. In theory, the pressure on micro-nano bubbles when they are about to disappear is infinite.

[0010] (3) Surface charge

[0011] Pure aqueous solution is composed of water molecules and a small amount of H and OH generated by ionization. The gas-liquid interface formed by bubbles in water has the characteristics of being easy to accept H and OH, and cations are usually easier to leave the gas-liquid interface than anions, so that the interface often carries a negative charge. The surface that has been charged generally tends to adsorb counterions in the medium, especially high-valent counterions, thereby forming a stable double layer. The potential difference generated by the surface charge of micro-nano bubbles is often characterized by zeta potential, which is an important factor in determining the adsorption performance of the bubble interface. When micro-nano bubbles shrink in water, the charged ions are rapidly concentrated and enriched on the very narrow bubble interface, which is manifested as a significant increase in zeta potential. Before the micro-nano bubbles burst, a very high zeta potential value can be formed at the interface.

[0012] (4) Produces a large number of free radicals

[0013] At the moment of micro-nano bubble bursting, due to the drastic change of the disappearance of the gas-liquid interface, the high-concentration ions gathered on the interface will release the accumulated chemical energy at once, which can stimulate the generation of a large number of hydroxyl free radicals. Hydroxyl free radicals have a very high redox potential, and the super strong oxidation effect they produce can degrade pollutants such as phenol that are difficult to oxidize and decompose under normal conditions in water, thereby purifying the water quality.

[0014] (5) High gas solubility rate

[0015] Micro-nano bubbles have the characteristics of slow rising speed and self-pressurized dissolution, which makes the micro-nano bubbles gradually shrink to nanometer level during the slow rising process, and finally disappear and dissolve into water, thereby greatly improving the solubility of gases (air, oxygen, ozone, carbon dioxide, etc.) in water. For ordinary bubbles, the solubility of gases is often affected and limited by the environmental pressure, and there is a saturated solubility. Under standard conditions, it is difficult for the solubility of gases to reach above the saturated solubility. However, since the internal pressure of micro-nano bubbles is higher than the environmental pressure, the supersaturated dissolution condition of gases calculated based on the assumption of atmospheric pressure is broken.

[0016] At present, due to the shortcomings of traditional microbubble generators such as complex structure, difficult processing, low inflation volume, and low uniformity of bubble size, the efficiency and effect of microbubble technology application need to be further improved. Summary of the invention

[0017] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a three-stage cyclone releaser specially used for micro-nano bubbles.

[0018] The technical solution adopted by the utility model to solve its technical problems is:

[0019] A three-stage cyclone releaser for micro-nano bubbles, comprising a single-end external thread 1, a variable diameter head 2, a fixing plate 3, a cross round head lengthened screw 4, a sleeve 5, a resonance plate 6, a nylon locking nut 7, a support plate 8, a conical spiral release head 9, a nut 10 and a guide cylinder 11; wherein: the small end of the variable diameter head 2 is inserted into one end of the single-end external thread 1, and the single-end external thread 1 and the variable diameter head 2 are plug-in connected; the fixing plate 3, the resonance plate 6 and the support plate 8 are arranged at intervals, and the fixing plate 3 and A sleeve 5 is provided between the resonance plates 6 and between the resonance plates 6 and the support plates 8. A cross round head lengthened screw 4 is inserted into the fixing plate 3, the resonance plates 6 and the support plates 8. The cross round head lengthened screw 4 passes through the sleeve 5 and extends from the support plates 8 respectively. The end of the cross round head lengthened screw 4 is locked and fixed by a nylon locking nut 7. One end of the fixing plate 3 is inserted into the large end of the reducer 2, and one end of the guide cylinder 11 is also inserted into the large end of the reducer 2 at the same time.

[0020] The utility model also has the following additional technical features:

[0021] As a further specific optimization of the technical solution of the utility model: a conical spiral release head 9 is installed on the fixed plate 3 through a nut 10, and the conical spiral release head 9 on the fixed plate 3 constitutes a first-stage swirl.

[0022] As a further specific optimization of the technical solution of the utility model: a conical spiral release head 9 is installed on the resonance plate 6 through a nut 10, and the conical spiral release head 9 on the resonance plate 6 constitutes a second-stage swirl.

[0023] As a further specific optimization of the technical solution of the utility model: a conical spiral release head 9 is installed on the support plate 8 through a nut 10, and the conical spiral release head 9 on the support plate 8 constitutes a third-level swirl.

[0024] Compared with the prior art, the utility model has the following advantages:

[0025] The first-stage swirl of the three-stage swirl releaser for nanobubbles generates turbulence in the fixed plate 3 and the resonance plate 6, which shears and refines the existing large bubbles into small bubbles, which is conducive to the miniaturization of bubbles. The second-stage swirl is in the resonance plate 6 and the support plate 8. The hollow grooves and hollow holes on the resonance plate 6 increase the air intake. The synergistic effect of the vortex air and the pressurized water flow further refines the bubbles. The third-stage swirl is between the support plate 8 and the guide cylinder 11. The cylindrical design of the guide cylinder 11 allows the water flow after the third-stage swirl to continue to spirally discharge, further refining the bubbles.

[0026] The structural complexity of the three-stage cyclone releaser dedicated to micro-nano bubbles is relatively low, the threaded connection assembly is convenient, and the manufacturing difficulty is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0029] Figure 3 It is a schematic diagram of the three-stage cyclone structure of the utility model.

[0030] Explanation of the reference numerals: single-head external thread 1, reducer 2, fixing plate 3, cross round head lengthened screw 4, sleeve 5, resonance plate 6, nylon locking nut 7, support plate 8, conical spiral release head 9, customized nut 10, guide cylinder 11. DETAILED DESCRIPTION

[0031] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0032] A three-stage cyclone releaser for micro-nano bubbles comprises a single-head outer thread 1, a reducer 2, a fixing plate 3, a cross round head lengthened screw 4, a sleeve 5, a resonance plate 6, a nylon locking nut 7, a supporting plate 8, a conical spiral release head 9, a nut 10 and a guide tube 11.

[0033] The small end of the reducer 2 is inserted into one end of the single-head external thread 1, and the single-head external thread 1 and the reducer 2 are plug-in connected; the fixed plate 3, the resonance plate 6 and the support plate 8 are arranged at intervals, and a sleeve 5 is provided between the fixed plate 3 and the resonance plate 6, and between the resonance plate 6 and the support plate 8. A cross round head lengthened screw 4 is inserted into the fixed plate 3, the resonance plate 6 and the support plate 8, and the cross round head lengthened screw 4 respectively passes through the sleeve 5 and extends out from the support plate 8, and the end of the cross round head lengthened screw 4 is locked and fixed by a nylon locking nut 7; the end of the fixed plate 3 is inserted into the large end of the reducer 2, and one end of the guide tube 11 is also inserted into the large end of the reducer 2 at the same time.

[0034] A conical spiral release head 9 is mounted on the fixing plate 3 via a nut 10 , and the conical spiral release head 9 on the fixing plate 3 constitutes a first-stage swirl.

[0035] A conical spiral release head 9 is installed on the resonance plate 6 through a nut 10, and the conical spiral release head 9 on the resonance plate 6 constitutes a second-stage swirl.

[0036] A conical spiral release head 9 is mounted on the support plate 8 via a nut 10 , and the conical spiral release head 9 on the support plate 8 constitutes a third-level swirl.

[0037] The conical spiral release head 9 of the three-stage cyclone releaser for nanobubbles is arranged in three places, which respectively constitute the first-stage cyclone, the second-stage cyclone and the third-stage cyclone. The first-stage cyclone generates turbulence in the fixed plate 3 and the resonance plate 6, shearing and refining the existing large bubbles into small bubbles, which is conducive to the miniaturization of bubbles. The second-stage cyclone is in the resonance plate 6 and the support plate 8. The hollow grooves and hollow holes on the resonance plate 6 increase the air intake. The synergistic effect of the vortex air and the pressurized water flow further refines the bubbles. The third-stage cyclone is between the support plate 8 and the guide cylinder 11. The cylindrical design of the guide cylinder 11 allows the water flow after the third-stage cyclone to continue to spirally discharge, further refining the bubbles.

[0038] The structural complexity of the three-stage cyclone releaser dedicated to micro-nano bubbles is relatively low, the threaded connection assembly is convenient, and the manufacturing difficulty is small.

[0039] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention but merely represents selected embodiments of the present invention.

Claims

1. A three-stage cyclone releaser for micro-nano bubbles, characterized by: The invention comprises a single-end external thread (1), a reducer (2), a fixing plate (3), a cross round head lengthened screw (4), a sleeve (5), a resonance plate (6), a nylon locking nut (7), a supporting plate (8), a conical spiral release head (9), a nut (10) and a guide tube (11); wherein: the small end of the reducer (2) is inserted into one end of the single-end external thread (1), and the single-end external thread (1) and the reducer (2) are plug-in connected; the fixing plate (3), the resonance plate (6) and the supporting plate (8) are arranged at intervals, and the fixing plate (3) and the resonance plate (6) are connected to each other. A sleeve (5) is arranged between the fixing plate (3), the resonance plate (6) and the support plate (8); cross round head lengthened screws (4) are inserted into the fixing plate (3), the resonance plate (6) and the support plate (8); the cross round head lengthened screws (4) respectively penetrate the sleeve (5) and extend from the support plate (8); the ends of the cross round head lengthened screws (4) are locked and fixed by nylon locking nuts (7); one end of the fixing plate (3) is inserted into the large end of the reducing reducer (2), and one end of the guide tube (11) is also inserted into the large end of the reducing reducer (2) at the same time.

2. The three-stage cyclone releaser for micro-nano bubbles according to claim 1 is characterized in that: A conical spiral release head (9) is mounted on the fixed plate (3) via a nut (10), and the conical spiral release head (9) on the fixed plate (3) forms a first-stage swirl.

3. The three-stage cyclone releaser for micro-nano bubbles according to claim 1 is characterized in that: A conical spiral release head (9) is mounted on the resonance plate (6) via a nut (10), and the conical spiral release head (9) on the resonance plate (6) forms a second-stage swirl.

4. The three-stage cyclone releaser for micro-nano bubbles according to claim 1 is characterized in that: A conical spiral release head (9) is mounted on the support plate (8) via a nut (10), and the conical spiral release head (9) on the support plate (8) forms a third-level swirl.

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