CN217773815U - Device for improving dissolution rate and generating nanobubbles and OH free radicals - Google Patents
Device for improving dissolution rate and generating nanobubbles and OH free radicals Download PDFInfo
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- CN217773815U CN217773815U CN202222157774.8U CN202222157774U CN217773815U CN 217773815 U CN217773815 U CN 217773815U CN 202222157774 U CN202222157774 U CN 202222157774U CN 217773815 U CN217773815 U CN 217773815U
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Abstract
The utility model provides a device for improving dissolution rate and generating nano bubbles and OH free radicals, belonging to the technical field of nano bubble preparation equipment, comprising a casing, a supercharging mechanism, a high-speed striking, crushing and refining mechanism and a power mechanism, wherein the casing is provided with a liquid inlet and a liquid outlet; the supercharging mechanism is arranged in the shell, is communicated with the liquid inlet and is used for supercharging gas-liquid mixed liquid entering from the liquid inlet; the high-speed striking, crushing and refining mechanism is arranged in the shell, is respectively communicated with the liquid outlet and is used for carrying out negative pressure crushing and refining on bubbles in the gas-liquid mixed liquid after passing through the pressurization mechanism; the power mechanism is arranged on the shell, and a power output shaft of the power mechanism extends into the shell and is respectively connected with the supercharging mechanism and the high-speed striking, crushing and thinning mechanism. The utility model discloses can realize nanometer bubble and OH free radical continuous production, more be favorable to according with the operation requirement of extensive industrial production, can be used to trades such as oil development, dirty waste water treatment.
Description
Technical Field
The utility model belongs to the technical field of nanometer bubble preparation equipment, more specifically say, relate to a device that improves dissolution rate and produce nanometer bubble and OH free radical.
Background
The fine bubbles present in the liquid are referred to as micro bubbles when the diameter of the bubbles is 100 μm or less, and the bubbles having a diameter of 100nm or less are referred to as nano bubbles. Nanobubbles have physical and chemical properties not possessed by conventional bubbles. The total surface area of the bubbles is inversely proportional to the diameter of the individual bubbles. Therefore, the smaller the size of the bubble, the larger the contact area between the gas and water in the bubble, and the longer the bubble remains in the water, and the smaller the bubble to a certain extent, the more electric discharge occurs during the burst process, and OH radicals are generated.
However, it is difficult to prepare nanobubbles on a large scale, and the ratio of generated nanobubbles to all generated nanobubbles is small, and the manufacturing cost is high, and a preparation means which generates a large amount of nanobubbles and is applicable to large-scale industrial production is lacking.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve the device of dissolution rate and production nanobubble and OH free radical to solve the above-mentioned technical problem that exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the device for improving the dissolution rate and generating nano bubbles and OH free radicals comprises a shell, a supercharging mechanism, a high-speed striking, crushing and refining mechanism and a power mechanism, wherein the shell is provided with a liquid inlet and a liquid outlet; the supercharging mechanism is arranged in the shell, is communicated with the liquid inlet and is used for supercharging gas-liquid mixed liquid entering from the liquid inlet; the high-speed striking, crushing and refining mechanism is arranged in the shell, is respectively communicated with the liquid outlet and is used for carrying out negative pressure crushing and refining on bubbles in the gas-liquid mixed liquid after passing through the supercharging mechanism; the power mechanism is arranged on the shell, and a power output shaft of the power mechanism extends into the shell and is respectively connected with the supercharging mechanism and the high-speed striking, crushing and thinning mechanism to provide power.
In one possible implementation mode, the high-speed striking, crushing and refining mechanism comprises a plurality of groups of special gears arranged side by side, each special gear comprises a gear ring, a connecting body and a plurality of special teeth, the gear ring is of an annular structure, the connecting body is connected with the gear ring and connected with a power output shaft of the power mechanism, and the special teeth are arranged on the gear ring at intervals; the special teeth are one of trapezoidal teeth, rectangular teeth, mushroom spike-shaped teeth and triangular teeth which are formed by straight edges or curved edges.
In a possible implementation mode, a cylindrical inner cavity which is vertically arranged is arranged inside the casing, the liquid inlet is positioned at the lower part of the casing, the liquid outlet is positioned at the upper part of the casing, the power mechanism is arranged on the casing, the power output shaft of the power mechanism extends downwards into the casing, the supercharging mechanism and the high-speed striking, crushing and refining mechanism are coaxially connected onto the power output shaft of the power mechanism, and the supercharging mechanism is positioned at the lower part of the high-speed striking, crushing and refining mechanism.
In one possible implementation, the pressurization mechanism is a centrifugal pressurization pumping mechanism.
In a possible implementation manner, the supercharging mechanism comprises a multistage centrifugal impeller and a plurality of flow guide discs, wherein the multistage centrifugal impeller is arranged in parallel and is connected with a power output shaft of the power mechanism, the flow guide discs are arranged in parallel and are connected with a shell at the outer edge, the centrifugal impeller and the flow guide discs are arranged in a staggered manner, flow guide holes are radially arranged on the centrifugal impeller, an inlet of each flow guide hole is arranged at the root of one side of the centrifugal impeller, an outlet of each flow guide hole is positioned at the outer edge of the centrifugal impeller, an overflowing gap for gas-liquid mixed liquid to pass through is formed between the other side of the centrifugal impeller and the adjacent flow guide discs or on the flow guide discs, and the overflowing gap is used for guiding the gas-liquid mixed liquid flowing out from the outlet of the previous-stage centrifugal impeller into an inlet of the next-stage centrifugal impeller; the guide plate corresponding to the upper-stage centrifugal impeller is hermetically connected with the lower-stage centrifugal impeller.
In one possible implementation manner, the centrifugal impeller and the flow guiding disc are in sealing connection through a sealing ring; a flow guide cover is arranged between the supercharging mechanism and the high-speed striking, crushing and refining mechanism.
In a possible implementation manner, the device for increasing the dissolution rate and generating nanobubbles and OH radicals further comprises a gas-liquid mixing mechanism, wherein the gas-liquid mixing mechanism is connected with the liquid inlet and is used for mixing gas and liquid to form a gas-liquid mixed liquid and conveying the gas-liquid mixed liquid into the machine shell.
In one possible implementation, the gas-liquid mixing mechanism comprises a liquid guide pipe, a gas guide pipe and a jet pump, wherein one end of the liquid guide pipe is connected with the liquid inlet, the other end of the liquid guide pipe is connected with the jet pump, one end of the gas guide pipe is connected with a gas source, and the other end of the gas guide pipe is connected with the liquid guide pipe.
In a possible implementation manner, the device for increasing the dissolution rate and generating nanobubbles and OH radicals further comprises a liquid discharging mechanism, and the liquid discharging mechanism is connected with the liquid outlet so as to lead out the gas-liquid mixed liquid.
In a possible implementation mode, the liquid discharging mechanism comprises a liquid discharging cover body and a liquid discharging pipe, the liquid discharging cover body is arranged outside the machine shell, a liquid discharging channel for gas-liquid mixed liquid to pass through is formed between the liquid discharging cover body and the machine shell, one end of the liquid discharging channel is communicated with the liquid outlet, and the other end of the liquid discharging channel is communicated with the liquid discharging pipe.
The utility model provides an improve the dissolution rate and produce the device of nanobubble and OH free radical's beneficial effect lies in: compared with the prior art, the utility model discloses a casing, booster mechanism, strike at a high speed and break the cooperation that refines mechanism and power unit, can realize the production of nanometer bubble and OH free radical. In addition, the gear rotating at a high speed partially forms a negative pressure area and can be fused with more gas, so that the dissolution rate of the gas can be improved, the pressurizing mechanism can not only initially crush bubbles in the pressurizing process, but also play a certain pumping role, so that the high pressure of the part of the high-speed striking, crushing and refining mechanism can be kept, the gas-liquid mixed liquid can actively flow through the high-speed striking, crushing and refining mechanism, the continuous production is realized, the yield can be greatly improved, and the use requirement of large-scale industrial production can be met; and a large amount of OH free radicals can be generated in the produced gas-liquid mixed liquid, and the OH free radicals have strong oxidizing capability and can be used in industries of oil exploitation, sewage and wastewater treatment and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic diagram of an internal structure of a device for increasing a dissolution rate and generating nanobubbles and OH radicals in a main viewing direction according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural view of a pressurizing mechanism part of an apparatus for increasing dissolution rate and generating nanobubbles and OH radicals according to an embodiment of the present invention in a main viewing direction;
fig. 3 is a schematic bottom view of a centrifugal impeller portion of an apparatus for increasing dissolution rate and generating nanobubbles and OH radicals according to an embodiment of the present invention;
fig. 4 is a schematic top view of a special gear of a side view structure of an apparatus for increasing a dissolution rate and generating nanobubbles and OH radicals according to an embodiment of the present invention.
Wherein the reference numerals in the figures are as follows:
10. a housing;
20. a pressurization mechanism; 21. a centrifugal impeller; 22. a flow guide disc;
23. a flow guide hole; 24. an overflow gap; 25. a seal ring; 26. a pod;
30. a high-speed striking, crushing and refining mechanism; 31. a gear ring; 32. a linker; 33. special teeth;
40. a power mechanism; 41. a power take-off shaft;
50. a gas-liquid mixing mechanism; 51. a catheter; 52. a jet pump; 53. an air duct;
60. a liquid discharge mechanism; 61. a liquid discharge cover body; 62. and a liquid discharge pipe.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It should be further noted that the drawings and embodiments of the present invention mainly describe the concept of the present invention, and on the basis of the concept, the specific forms and arrangements of some connection relationships, position relationships, power mechanisms, power supply systems, hydraulic systems, control systems, etc. may not be completely described, but those skilled in the art can implement the specific forms and arrangements in a well-known manner on the premise that those skilled in the art understand the concept of the present invention.
When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Now, the device for increasing the dissolution rate and generating nanobubbles and OH radicals provided by the present invention will be described.
Referring to fig. 1 and 2, the apparatus for increasing dissolution rate and generating nanobubbles and OH radicals according to the first embodiment of the present invention includes a housing 10, a pressurizing mechanism 20, a high-speed striking, crushing and refining mechanism 30 and a power mechanism 40, wherein the housing 10 has a liquid inlet and a liquid outlet; the supercharging mechanism 20 is arranged in the casing 10, is communicated with the liquid inlet and is used for supercharging gas-liquid mixed liquid entering from the liquid inlet; the high-speed striking, crushing and refining mechanism 30 is arranged in the casing 10, is respectively communicated with the liquid outlet, and is used for performing negative pressure crushing and refining on bubbles in the gas-liquid mixed liquid after passing through the pressurization mechanism 20; the power mechanism 40 is arranged on the casing 10, and a power output shaft 41 of the power mechanism 40 extends into the casing 10 and is respectively connected with the pressurization mechanism 20 and the high-speed striking, crushing and refining mechanism 30 to provide power.
In the gas-liquid mixed liquid, the gas can be one or a mixture of more of air, oxygen, ozone, hydrogen, nitrogen, carbon monoxide and carbon dioxide; the liquid can be one or a mixture of more of pure water, tap water, municipal sewage, sewage of rivers and lakes, industrial wastewater, livestock and aquaculture wastewater, agricultural wastewater, medical and health wastewater, mining wastewater, wine making wastewater, food processing wastewater, petrochemical industry wastewater, petroleum and natural gas exploitation wastewater, coal industry wastewater, nuclear power plant wastewater, thermal power plant wastewater, printing and dyeing industry wastewater, water for health maintenance industry, sewage of swimming pools, water for softening hard water, printing and dyeing industry wastewater and garbage penetrating fluid aqueous solution.
When nanometer bubble and OH free radical are produced, the supply equipment of gas-liquid mixed liquid is connected at the liquid inlet of the casing 10, then the power mechanism 40 is started to drive the pressurizing mechanism 20 and the high-speed striking, crushing and refining mechanism 30 to run, the gas-liquid mixed liquid is pressurized by the pressurizing mechanism 20 and is primarily crushed into tiny bubbles, then the gas-liquid mixed liquid is crushed into nanometer bubbles by the high-speed striking, crushing and refining mechanism 30, then the nanometer bubbles are led out from the liquid outlet, and the OH free radical can be produced after the nanometer bubbles are led out and during the use process.
Compared with the prior art, the device for generating nano bubbles and OH free radicals by improving the dissolution rate can generate the nano bubbles and the OH free radicals by the cooperation of the casing 10, the pressurization mechanism 20, the high-speed striking, crushing and refining mechanism 30 and the power mechanism 40. In addition, the gear rotating at a high speed forms a negative pressure area locally, more gas can be blended, the dissolution rate of the gas can be improved, the pressurizing mechanism 20 can not only carry out primary crushing on bubbles in the pressurizing process, but also play a certain pumping role, the high pressure of the part of the high-speed striking, crushing and refining mechanism 30 can be kept, the gas-liquid mixed liquid can actively flow through the high-speed striking, crushing and refining mechanism 30, the continuous production is realized, the yield can be greatly improved, and the use requirement of large-scale industrial production can be met; and a large amount of OH free radicals can be generated in the produced gas-liquid mixed liquid, and the OH free radicals have strong oxidizing capability and can be used in industries of oil exploitation, sewage and wastewater treatment and the like.
Referring to fig. 1, the present invention provides a first embodiment of the present invention as follows:
the inside of the casing 10 is provided with a vertically arranged cylindrical inner cavity, the liquid inlet is positioned at the lower part of the casing 10, the liquid outlet is positioned at the upper part of the casing 10, the power mechanism 40 is arranged on the casing 10, the power output shaft 41 of the power mechanism 40 extends downwards into the casing 10, the supercharging mechanism 20 and the high-speed striking, crushing and refining mechanism 30 are coaxially connected to the power output shaft 41 of the power mechanism 40, and the supercharging mechanism 20 is positioned at the lower part of the high-speed striking, crushing and refining mechanism 30.
By adopting the form, the structure is compact, and the gas-liquid mixed liquid flows from bottom to top in the shell 10, so that the gas-liquid mixed liquid is fully contacted with the supercharging mechanism 20 and the high-speed striking, crushing and refining mechanism 30, and the pumping effect of the supercharging mechanism 20 is ensured.
For the convenience of installation, a base may be further provided at the lower portion of the casing 10.
Referring to fig. 1 and 4, the present invention provides a first embodiment, which comprises the following steps:
the high-speed striking, crushing and thinning mechanism 30 comprises a plurality of groups of special gears arranged side by side, each special gear comprises a gear ring 31, a connecting body 32 and a plurality of special teeth 33, the gear ring 31 is of an annular structure, the connecting body 32 is connected with the gear ring 31 and is connected with a power output shaft 41 of a power mechanism 40, and the special teeth 33 are arranged on the gear ring 31 at intervals.
The special teeth 33 are trapezoidal teeth, rectangular teeth, mushroom spike teeth, triangular teeth or other forms of variations, which are composed of straight or curved sides.
The special gears are arranged at certain intervals, and the rotating speed of the special gears is set according to requirements. The special teeth 33 can be located either outside or inside the gear ring 31. The gear ring 31 is of an annular structure, so that on one hand, special teeth 33 can be arranged more, the crushing effect is increased, and on the other hand, the circulation of internal liquid is facilitated. The gear ring 31 may be a circular ring structure, or may be another annular structure such as an elliptical ring or a square ring; the number of the gear rings 31 on each gear may be one or more, and the plurality of gear rings 31 may be concentrically arranged or eccentrically arranged.
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is as follows:
the pressurization mechanism 20 is a centrifugal pressurization pumping mechanism to pressurize the gas-liquid mixed liquid by centrifugal action.
The supercharging mechanism 20 comprises a multistage centrifugal impeller 21 and a plurality of flow guide discs 22, the multistage centrifugal impeller 21 is arranged in parallel and is connected with a power output shaft 41 of the power mechanism 40, the flow guide discs 22 are arranged in parallel and are connected with the shell 10 at the outer edge, the centrifugal impeller 21 and the flow guide discs 22 are arranged in a staggered manner, flow guide holes 23 are arranged on the centrifugal impeller 21 along the radial direction, the inlet of each flow guide hole 23 is arranged at the root part of one side of the centrifugal impeller 21, the outlet of each flow guide hole is positioned at the outer edge of the centrifugal impeller 21, an overflowing gap 24 for gas-liquid mixed liquid to pass through is arranged between the other side of the centrifugal impeller 21 and the adjacent flow guide disc 22 or on each flow guide disc 22, and the overflowing gap 24 is used for guiding the gas-liquid mixed liquid flowing out from the outlet of the previous-stage centrifugal impeller 21 into the inlet of the next-stage centrifugal impeller 21; the baffle disc 22 corresponding to the centrifugal impeller 21 of the upper stage is hermetically connected with the centrifugal impeller 21 of the lower stage, and the flow state is shown by arrows in fig. 1 and fig. 2.
Wherein, centrifugal impeller 21 and guiding disc 22 all set up according to certain interval, and the rotational speed of centrifugal impeller 21 sets for as required.
The centrifugal impeller 21 and the deflector 22 are in sealing connection through a sealing ring 25 to ensure sealing effect.
A flow guide cover 26 is further arranged between the pressurization mechanism 20 and the high-speed striking, crushing and refining mechanism 30 so as to guide the gas-liquid mixed liquid passing through the pressurization mechanism 20 into the high-speed striking, crushing and refining mechanism 30 from a specific position at a specific angle according to requirements.
Referring to fig. 1, the present invention provides a specific embodiment based on the first embodiment as follows:
the apparatus for increasing the dissolution rate and generating nanobubbles and OH radicals further comprises a gas-liquid mixing mechanism 50, wherein the gas-liquid mixing mechanism 50 is connected to the liquid inlet, and is used for mixing gas and liquid to form a gas-liquid mixed liquid and conveying the gas-liquid mixed liquid into the casing 10.
The gas-liquid mixing mechanism 50 comprises a liquid guide pipe 51, a gas guide pipe 53 and a jet pump 52, wherein one end of the liquid guide pipe 51 is connected with a liquid inlet, the other end of the liquid guide pipe is connected with the jet pump 52, one end of the gas guide pipe 53 is connected with a gas source, and the other end of the gas guide pipe is connected with the liquid guide pipe 51. The gas source canTo produce or store gas, including oxygen machine, ozone machine, hydrogen machine, CO 2 Machines, etc.
The liquid guide tube 51 of the gas-liquid mixing mechanism 50 can be two, one is a main liquid guide tube, the other is an auxiliary liquid guide tube for introducing air, the auxiliary liquid guide tube is connected with the side part of the main liquid guide tube, the jet device 52 is arranged on the auxiliary liquid guide tube, the air guide tube 53 is connected with the liquid guide tube through a venturi tube, so that air can be sucked from the air guide tube 53 by the cooperation of the jet device 52 and the venturi tube, and the air can be better mixed and dispersed in the liquid.
Referring to fig. 1, the present invention provides a first embodiment of the present invention as follows:
the device for improving the dissolution rate and generating the nano bubbles and OH free radicals further comprises a liquid discharging mechanism 60, and the liquid discharging mechanism 60 and a liquid outlet are used for guiding out a gas-liquid mixed liquid.
The liquid discharging mechanism 60 includes a liquid discharging cover 61 and a liquid discharging pipe 62, the liquid discharging cover 61 is disposed outside the casing 10, a liquid discharging channel for passing the gas-liquid mixed liquid is formed between the liquid discharging cover 61 and the casing 10, one end of the liquid discharging channel is communicated with the liquid outlet, and the other end of the liquid discharging channel is communicated with the liquid discharging pipe 62.
On one hand, the structure can enable the whole structure to be more compact, and the liquid discharge channel can reduce the outward transmission of internal vibration, so that the stability of the whole equipment is enhanced.
In a specific embodiment, the power mechanism 40 is a motor, and the power output shaft 41 is a rotating shaft thereof, the utility model discloses a series of centrifugal impellers 21 and special gears are connected in series on the rotating shaft connected with the motor, and are arranged according to certain spacing distance between the centrifugal impellers 21 and between the special gears, the outsides of these series-connected impellers and special gears are wrapped by a fixed cylindrical barrel-shaped casing, and the bottom and the top of the casing cavity are respectively provided with an inlet and an outlet of fluid. A special multi-stage pump structure of a pump room is formed between the centrifugal impeller 21 and the special gear and the shell. The inlet end inputs the mixed liquid of fluid and gas. The mixed liquid firstly sucks the mixed liquid of fluid and gas into the closed cavity of the shell through the negative pressure generated by the high-speed centrifugal rotation of the centrifugal impeller 21, the mixed liquid of the water and the air is more finely mixed through the negative pressure generated by the high-speed rotation of the high-speed rotating centrifugal impeller 21, then the mixed liquid passes through the flow guide cover 26, holes are arranged in the center of the flow guide cover 26, the holes are jetted to a gear area rotating at high speed after the mixed liquid is centrifugally pressurized by the centrifugal impellers 21, and micro bubbles of the gas-liquid mixed liquid are further reduced due to the cutting action of the high-speed rotation of the gear and the local negative pressure generated by the rotation, so that the micro-nano bubbles are generated. The mixed liquid containing a large amount of micro-nano bubbles is output through an outlet. The micro-nano bubbles can stay in water for a long time. The surface of the bubble is charged, when gas in the bubble is absorbed by liquid, the bubble is reduced, the charge in the unit area of the surface of the bubble is increased, and when the micro-nano bubble shrinks to a certain degree, blasting discharge is generated (the instantaneous local temperature reaches 1000 ℃, and the pressure reaches 100 Mpa), so that OH free radicals are generated.
The micro-nano bubbles in the gas-liquid mixed liquor have higher zeta potential of the interface, that is to say, different quantities of anions and cations are adsorbed on the surfaces of the micro-nano bubbles to form potential difference, and the potential difference is zeta potential. In addition, the micro-nano bubbles are small in diameter, and can compress gas in the bubbles when the surface tension is large, the gas dissolving capacity is greatly enhanced, in addition, the micro-nano bubbles continuously shrink in the rising process and are pressurized by the micro-nano bubbles, the specific surface area and the internal air pressure are continuously increased due to the fact that the volume is continuously reduced, and more gas can penetrate through the two-phase interface to be dissolved into water according to Fick law (formula 1). Meanwhile, the micro-nano bubbles are gradually reduced in diameter, and are broken when the internal pressure exceeds the limit, and simultaneously discharge is carried out, OH free radicals are generated in the blasting discharge process, and thousands of high temperature and hundreds of MPa pressure are instantly generated.
Wherein: v. of d Is the diffusion rate of the substance; DL is the diffusion coefficient; indicating the diffusion capacity of a substance in a medium; c is the substance concentration; y is the length of the diffusion process; dC/dy isConcentration gradient, concentration variation per unit length of the stage. The diffusion rate of a substance is directly proportional to the concentration gradient.
Because the micro-nano bubbles have extremely small sizes, the micro-nano bubbles have extremely low ascending speed, so that the micro-nano bubbles can be remained in water for a long time and are not released into the air in a short time due to large volume of the bubbles as in the conventional sewage treatment aeration technology. According to the Stokes formula, at normal temperature, the specific surface area (the surface area of bubbles with the same volume) of water is increased because the bubbles are small, and the small bubbles are favorable for the absorption action of a gas-liquid interface and the material moving action. Since the OH ions come from water molecules ionizing a granular structure (hydrogen bond network) generated at a gas-liquid interface and collected on the surface, the surface of the bubble has negative (-) electricity. When the diameter of the micro-nano bubbles is not considered, the potential xi of the bubbles is about-35 mV, the potential xi is influenced by the pH value, the potential is positive when the pH value is less than 4.5, the potential is reduced along with the increase of the pH value, and the potential reaches-110 mV when the pH value is increased to 10. The absorption of contaminants in water is related to the surface charge of the bubbles. In water, the pressure difference between the inside and the outside of the bubble can be obtained by the young-laplace formula (2):
ΔP＝4σ/d (2)
here, σ denotes the surface tension of water, and d denotes the diameter of the bubble. If the diameter of the bubble becomes smaller, the pressure difference between the inside and the outside of the bubble increases. Furthermore, if we assume that this change occurs under adiabatic air compression, the temperature inside the bubble also rises rapidly. Accordingly, if the bubble is broken, a high temperature and high pressure environment is immediately generated, and a large amount of OH radicals are generated. The OH free radical has strong oxidizing ability and can be used in the industries of sewage and wastewater treatment and the like.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An apparatus for increasing dissolution rate and generating nanobubbles and OH radicals, comprising:
a housing having a liquid inlet and a liquid outlet;
the pressurization mechanism is arranged in the shell, is communicated with the liquid inlet and is used for pressurizing gas-liquid mixed liquid entering from the liquid inlet;
the high-speed striking, crushing and refining mechanism is arranged in the shell, is respectively communicated with the liquid outlet and is used for carrying out negative pressure crushing and refining on bubbles in the gas-liquid mixed liquid after passing through the pressurization mechanism;
the power mechanism is arranged on the shell, and a power output shaft of the power mechanism extends into the shell and is respectively connected with the supercharging mechanism and the high-speed striking, crushing and refining mechanism to provide power.
2. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 1, wherein: the high-speed striking, crushing and refining mechanism comprises a plurality of groups of special gears which are arranged side by side, each special gear comprises a gear ring, a connector and a plurality of special teeth, the gear rings are of annular structures, the connector is connected with the gear rings and connected with a power output shaft of the power mechanism, and the special teeth are arranged on the gear rings at intervals; the special teeth are one of trapezoidal teeth, rectangular teeth and triangular teeth which are formed by straight edges or curved edges.
3. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 1, wherein: the inside tube-shape inner chamber that is equipped with vertical setting of casing, liquid inlet is located the casing lower part, the liquid outlet is located casing upper portion, power unit establishes on the casing, just power unit's power take off axle downwardly extending extends to in the casing, booster mechanism with strike the breakage at a high speed and refine mechanism coaxial coupling on power unit's power take off axle, booster mechanism is located strike the breakage at a high speed and refine the mechanism lower part.
4. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 1, wherein: the supercharging mechanism is a centrifugal supercharging pumping mechanism.
5. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 4, wherein: the supercharging mechanism comprises a multistage centrifugal impeller and a plurality of flow guide discs, the multistage centrifugal impeller is arranged in parallel and is connected with a power output shaft of the power mechanism, the flow guide discs are arranged in parallel, the outer edges of the flow guide discs are connected with the casing, the centrifugal impeller and the flow guide discs are arranged in a staggered mode, flow guide holes are formed in the centrifugal impeller in the radial direction, the inlet of each flow guide hole is formed in the root of one side of the centrifugal impeller, the outlet of each flow guide hole is located in the outer edge of the centrifugal impeller, an overflowing gap for gas-liquid mixed liquid to pass through is formed between the other side of the centrifugal impeller and the adjacent flow guide discs or among the flow guide discs, and the overflowing gap is used for guiding the gas-liquid mixed liquid flowing out from the outlet of the previous-stage centrifugal impeller into the inlet of the next-stage centrifugal impeller; the guide plate corresponding to the upper-stage centrifugal impeller is hermetically connected with the lower-stage centrifugal impeller.
6. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 5, wherein: the centrifugal impeller and the flow guide disc are in sealing connection through a sealing ring; and a flow guide cover is also arranged between the supercharging mechanism and the high-speed striking, crushing and refining mechanism.
7. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 1, wherein: the device for improving the dissolution rate and generating the nano bubbles and the OH free radicals further comprises a gas-liquid mixing mechanism, wherein the gas-liquid mixing mechanism is connected with the liquid inlet and is used for mixing gas and liquid to form a gas-liquid mixed liquid and conveying the gas-liquid mixed liquid into the shell.
8. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 7, wherein: the gas-liquid mixing mechanism comprises a liquid guide pipe, a gas guide pipe and a jet pump, wherein one end of the liquid guide pipe is connected with the liquid inlet, the other end of the liquid guide pipe is connected with the jet pump, one end of the gas guide pipe is connected with a gas source, and the other end of the gas guide pipe is connected with the liquid guide pipe.
9. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 1, wherein: the device for improving the dissolution rate and generating the nano bubbles and the OH free radicals further comprises a liquid discharging mechanism, and the liquid discharging mechanism and the liquid outlet are used for leading out gas-liquid mixed liquid.
10. The apparatus for increasing dissolution rate and generating nanobubbles and OH radicals as claimed in claim 9, wherein: the liquid discharging mechanism comprises a liquid discharging cover body and a liquid discharging pipe, the liquid discharging cover body is arranged outside the shell, a liquid discharging channel for gas-liquid mixed liquid to pass through is formed between the liquid discharging cover body and the shell, one end of the liquid discharging channel is communicated with the liquid outlet, and the other end of the liquid discharging channel is communicated with the liquid discharging pipe.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115282798A (en) * | 2022-08-16 | 2022-11-04 | 国油伟泰(北京)科技有限公司 | Method and device for improving dissolution rate and generating nanobubbles and OH free radicals |
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2022
- 2022-08-16 CN CN202222157774.8U patent/CN217773815U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282798A (en) * | 2022-08-16 | 2022-11-04 | 国油伟泰(北京)科技有限公司 | Method and device for improving dissolution rate and generating nanobubbles and OH free radicals |
| CN115282798B (en) * | 2022-08-16 | 2024-04-26 | 国油伟泰(北京)科技有限公司 | Method and device for improving dissolution rate and generating nano bubbles and OH free radicals |
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