Micro-nano bubble generating device
By utilizing flow rate regulation and shearing devices in a micro-nano bubble generator to form micro-nano bubbles, the problems of high energy consumption and size inhomogeneity are solved, achieving energy-saving and efficient micro-nano bubble generation.
Patent Information
- Application Number
- CN202422928817.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing micro-nano bubble generating devices consume a lot of energy, are costly, and the sizes of the micro-nano bubbles are uneven.
The liquid flow rate is increased by using a first flow rate regulating device inside the shell, and the gas in the liquid is sheared by a shearing device such as an impeller and a porous mesh to form micro-nano bubbles, thus avoiding additional power consumption.
This reduces the device's energy consumption, saves costs, and results in smaller and more uniform micro-nano bubbles.
Smart Images
Figure CN223464749U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic equipment technical field especially relates to a micro nano bubble generating device. BACKGROUND
[0002] The main purpose of the water tank in the solar silicon wafer cleaning equipment is to clean and remove the chemical liquid remaining on the surface of the silicon wafer after processing in the previous process liquid tank, and then proceed to the next process, so as to prevent the chemical liquid in the previous process from being brought into other liquid tanks, affecting the process reaction results of the next process of the silicon wafer. When the flower basket full of silicon wafers is put into the water tank, the water tank starts to replenish water, and the water supplied by the water inlet pipe at the bottom of the tank body continuously overflows out of the tank body, and the silicon wafer surface residual chemical liquid is cleaned by continuously adding water and overflowing. The inside of the tank body is arranged with a bubbling pipe, and the PFA pipe is equally perforated. After the flower basket is put into the tank body, the bubbling pipe is supplied with gas, so that the water in the tank body is slightly fluctuated, so as to achieve the purpose of better washing the residual chemical liquid on the surface of the silicon wafer.
[0003] At present, under the development trend of solar silicon wafer cleaning equipment, the production capacity of the equipment processing silicon wafers is continuously increased, and the corresponding required tank volume is also increased. In order to clean the residual chemical liquid of the silicon wafer in the water tank and achieve the cleanliness required by the process, the water inflow and overflow amount of the water tank also needs to be increased according to the increase of the water tank volume, the demand for pure water is greatly increased, the water overflowed needs to be treated before being discharged, the sewage treatment capacity of the factory is greatly improved, and the production cost of the product is increased.
[0004] In the existing micro-nano bubble generating device, additional power is generally required to shear the gas in the liquid to obtain micro-nano bubbles, which will cause the energy consumption of the entire micro-nano bubble generating device to be large and increase the cost. Utility model content
[0005] One object of the first aspect of the utility model is to provide a micro-nano bubble generating device, which solves the technical problems of large energy consumption and high cost of the micro-nano bubble generating device in the prior art.
[0006] One object of the second aspect of the utility model is to reduce the size of the micro-nano bubbles obtained by the micro-nano bubble generating device and improve the uniformity.
[0007] In particular, the utility model provides a micro-nano bubble generating device, comprising:
[0008] A shell comprising a liquid inlet, a gas inlet and an outlet;
[0009] A first flow rate adjusting device arranged inside the shell, and the liquid entering the shell through the liquid inlet passes through the first flow rate adjusting device to increase the flow rate of the liquid; and
[0010] a shearing device disposed inside the housing, the shearing device being located downstream of the first flow rate adjusting device in the liquid flow direction, and the shearing device being rotated by the liquid pushed at an increased flow rate, thereby shearing the gas flowing into the liquid from the gas inlet to form micro-nano bubbles mixed in the liquid flowing out from the outlet.
[0011] Optionally, the first flow rate adjusting device is cylindrical with a liquid inlet, and at least one liquid outlet is disposed at the sidewall of the first flow rate adjusting device, the cross-sectional area of all the liquid outlets being smaller than that of the liquid inlet.
[0012] Optionally, the first flow rate adjusting device further comprises at least one flow guide column disposed in front of the liquid inlet.
[0013] Optionally, the shearing device comprises an impeller, the impeller comprising a rotating shaft and blades disposed at the outer periphery of the rotating shaft, the rotating shaft being rotationally connected with the housing, the blades being configured to rotate the rotating shaft when the liquid flows to the blades along a preset direction, thereby shearing the gas in the liquid by the blades, wherein the preset direction is the direction of the liquid flow.
[0014] Optionally, the shearing device further comprises a first porous mesh connected with the impeller to rotate with the impeller, thereby shearing the gas in the liquid.
[0015] Optionally, the first porous mesh is located at the gas inlet and upstream of the impeller, so that the gas entering the housing from the gas inlet is first sheared by the first porous mesh and then flows to the impeller for further shearing.
[0016] Optionally, a second porous mesh is further included, the second porous mesh being disposed inside the housing, the second porous mesh being formed in a cylindrical shape with an opening and having an accommodating space inside to accommodate the impeller and at least part of the first porous mesh.
[0017] Optionally, the second porous mesh is connected with the impeller to rotate with the impeller.
[0018] Optionally, a second flow rate adjusting device is further included, the second flow rate adjusting device being disposed downstream of the second porous mesh to reduce the flow rate of the liquid flowing out from the second porous mesh by the second flow rate adjusting device.
[0019] Optionally, the second flow rate adjusting device is identical in structure to the first flow rate adjusting device, and is arranged in the housing in a direction opposite to the direction in which the first flow rate adjusting device is arranged in the housing.
[0020] The micro-nano bubble generating device can include a shell, a first flow rate adjusting device, and a shearing device. The liquid flowing into the shell at a low speed is adjusted to a high speed by the first flow rate adjusting device, and then the high-speed liquid impacts the shearing device, so that the shearing device rotates to shear the gas in the liquid to form micro-nano bubbles. This process does not require additional power, and only the structure of the first flow rate adjusting device changes the flow rate of the liquid to achieve the purpose, thereby reducing the energy consumption of the entire device and saving costs.
[0021] The shearing device can include an impeller and a first porous mesh. The gas is first sheared and divided by the first porous mesh and then further sheared and divided by the impeller to form micro-nano bubbles. Since the micro-nano bubbles are formed by two times of cutting by the first porous mesh and the impeller, the size of the micro-nano bubbles formed is smaller and more uniform.
[0022] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0023] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are exemplary and not limiting. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0024] Figure 1 is a schematic perspective sectional view of a micro-nano bubble generating device according to one specific embodiment of the present application;
[0025] Figure 2 is a schematic perspective view of a first flow rate adjusting device according to one specific embodiment of the present application;
[0026] Figure 3 is a schematic perspective view of an impeller according to one specific embodiment of the present application;
[0027] Figure 4 is a schematic perspective view of an impeller and a shearing device connected according to one specific embodiment of the present application;
[0028] Figure 5 is a schematic perspective view of an impeller, a shearing device, and a second porous mesh connected according to one specific embodiment of the present application.
[0029] Reference signs:
[0030] Micro-nano bubble generating device - 100; shell - 110; liquid inlet - 111; gas inlet - 112; outlet - 113; first flow rate adjusting device - 120; liquid inlet - 121; liquid outlet - 122; flow guide column - 123; shearing device - 130; impeller - 131; rotating shaft - 132; blade - 133; first porous net - 134; second porous net - 140; second flow rate adjusting device - 150. DETAILED DESCRIPTION
[0031] In the description of the embodiments, it should be understood that the terms "length", "width", "height", "upper", "lower", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0032] As a specific embodiment of the present application, as shown in Figure 1 The micro-nano bubble generating device 100 can include a shell 110, a first flow rate adjusting device 120 and a shearing device 130. The shell 110 can include a liquid inlet 111, a gas inlet 112 and an outlet 113. The first flow rate adjusting device 120 is arranged inside the shell 110, and the liquid entering the shell 110 from the liquid inlet 111 passes through the first flow rate adjusting device 120 to increase the flow rate of the liquid. The shearing device 130 is arranged inside the shell 110, and the shearing device 130 is located downstream of the first flow rate adjusting device 120 in the direction of liquid flow, and the shearing device 130 rotates under the push of the accelerated liquid, and then shears the gas flowing into the liquid from the gas inlet 112 to form micro-nano bubbles, which are mixed in the liquid and flow out from the outlet 113.
[0033] Specifically, the shell 110 of the present embodiment can be formed into a cylindrical shape, preferably a cylindrical device, one end of which is the liquid inlet 111 and the other end of which is the outlet 113, and the gas inlet 112 is arranged at the side wall thereof. The liquid flows into the shell 110 from the liquid inlet 111 continuously, and the gas inlet 112 introduces gas and mixes it in the liquid. When the liquid passes through the first flow rate adjusting device 120, the flow rate of the liquid is increased by the first flow rate adjusting device 120, and the high-speed liquid flows to the shearing device 130, and the shearing device 130 starts to rotate, and then shears the gas in the liquid, thereby forming micro-nano bubbles.
[0034] The micro-nano bubble generating device 100 of the embodiment can include a shell 110, a first flow rate adjusting device 120 and a shearing device 130, the liquid flowing into the shell 110 at a low speed is adjusted to a high speed through the first flow rate adjusting device 120, and then the high-speed liquid impacts on the shearing device 130, so that the shearing device 130 rotates to shear the gas in the liquid to form micro-nano bubbles, and the process does not need additional power, but only changes the liquid flow rate through the structure of the first flow rate adjusting device 120 to achieve the purpose, thereby reducing the energy consumption of the whole device and saving the cost.
[0035] As a specific embodiment of the utility model, as shown in the figure, Figure 2 The first flow rate adjusting device 120 of the embodiment is a cylinder with a liquid inlet 121, and at least one liquid outlet 122 is arranged at the side wall of the first flow rate adjusting device 120, and the cross-sectional area of all the liquid outlets 122 is smaller than that of the liquid inlet 121.
[0036] Specifically, the first flow rate adjusting device 120 of the embodiment can be a flow guide ring, the liquid inlet 121 of which is directed to the liquid inlet 111, and the liquid enters the flow guide ring from the liquid inlet 121 and then flows out from the liquid outlet 122. Since the cross-sectional area of the liquid outlet 122 is smaller than that of the liquid inlet 121, the flow rate of the liquid will suddenly increase due to the sudden change in the cross-sectional area, forming high-speed fluid.
[0037] The liquid outlet 122 of the embodiment is arranged at the side wall of the flow guide ring, so the liquid flows out from the side wall of the flow guide ring and flows backward along the pipe wall at high speed due to the blocking effect of the inner wall of the shell 110. The number of liquid outlets 122 can be one or more. Preferably, the number of liquid outlets 122 is multiple, and they are uniformly distributed at the side wall of the flow guide ring.
[0038] Specifically, the first flow rate adjusting device 120 of the embodiment further includes at least one flow guide column 123 arranged in front of the liquid inlet 121. Preferably, the number of flow guide columns 123 is multiple, and the gaps between the flow guide columns 123 are arranged correspondingly to the liquid outlets 122.
[0039] As a specific embodiment of the utility model, as shown in the figure, Figure 3 The shearing device 130 of the embodiment can include an impeller 131, the impeller 131 including a rotating shaft 132 and blades 133 arranged at the outer periphery of the rotating shaft 132, the rotating shaft 132 being rotatably connected to the shell 110, the blades 133 being configured to drive the rotating shaft 132 to rotate when the liquid flows to the blades 133 along a preset direction, and then the blades 133 shear and divide the gas in the liquid, wherein the preset direction is the direction of the liquid flow.
[0040] Specifically, in this embodiment, the rotating shaft 132 is connected to the blades 133. The blades 133 are shaped to extend in the direction of liquid flow, and multiple blades 133 are curved in the same direction. When high-speed liquid flows toward the blades 133, it pushes the blades 133, which in turn push the rotating shaft 132, causing the impeller 131 to rotate. As the impeller 131 rotates, the blades 133 continuously cut the gas within the liquid, forming tiny bubbles. Of course, the greater the liquid flow rate, the faster the impeller 131 rotates, and the faster the blades 133 cut the gas, the smaller the bubbles formed.
[0041] As a specific embodiment of the present invention, Figure 4 As shown, the shearing device 130 of this embodiment may further include a first porous mesh 134 , which is connected to the impeller 131 to rotate with the impeller 131 , thereby shearing and dividing the gas in the liquid.
[0042] Specifically, the first porous mesh 134 of this embodiment is located at the gas inlet 112 and upstream of the impeller 131, so that the gas entering the shell 110 from the gas inlet 112 is first sheared and divided by the first porous mesh 134 before flowing to the impeller 131 for further shearing and division.
[0043] Specifically, the first porous mesh 134 of this embodiment is formed into a cylindrical structure. The liquid outlet 122 of the first flow rate regulating device 120 is partially disposed within the cylindrical structure, and the gas inlet 112 also faces the sidewall of the first porous mesh 134. This allows the gas to be immediately cut by the first porous mesh 134 after entering the housing 110. The cut gas is then driven by the high-speed liquid to flow toward the impeller 131, where it is then cut a second time by the impeller 131, thereby forming micro-nano bubbles. In this embodiment, the double cutting by the first porous mesh 134 and the impeller 131 results in smaller and more uniform micro-nano bubbles.
[0044] As a specific embodiment of the present invention, Figure 5 As shown, the micro-nano bubble generating device 100 of this embodiment may further include a second porous mesh 140, which is disposed in the housing 110. The second porous mesh 140 is formed into a cylindrical shape with an opening and has an accommodating space inside to accommodate the impeller 131 and at least part of the first porous mesh 134.
[0045] Specifically, the second porous screen 140 is arranged outside the impeller 131, and can be placed in the shell 110 or connected with the impeller 131 to rotate with the impeller 131. When the second porous screen 140 is placed in the shell 110, the first porous screen 134 and the second porous screen 140 are partially overlapped, so that the first porous screen 134 and the second porous screen 140 and the impeller 131 rotate relatively when the first porous screen 134 rotates, thereby cutting the gas. The gas is prevented from being combined with each other after being placed. When the second porous screen 140 rotates with the impeller 131, the second porous screen 140 can cut the gas in the liquid like the first porous screen 134, so that the whole shearing device 130 forms triple cutting, and the size of the micro-nano bubbles formed is smaller and more uniform. In addition, the second porous screen 140 can control the flow rate of the liquid flowing out of the whole micro-nano bubble generating device 100.
[0046] As one specific embodiment of the utility model, as shown in the figure, Figure 1 The micro-nano bubble generating device 100 can also include a second flow rate adjusting device 150, which is arranged downstream of the second porous screen 140 to reduce the flow rate of the liquid flowing out of the second porous screen 140 through the second flow rate adjusting device 150.
[0047] Specifically, the second flow rate adjusting device 150 of the embodiment is mainly used to reduce the flow rate of the high-speed liquid in the shell 110 before the liquid flows out of the shell 110, so as to avoid that the flow rate at the liquid inlet 111 and the flow rate at the outlet 113 are too different, causing negative pressure.
[0048] As one of the embodiments, the second flow rate adjusting device 150 of the embodiment has the same structure as the first flow rate adjusting device 120, and is arranged in the shell 110 in the opposite direction to the first flow rate adjusting device 120.
[0049] Specifically, the structure and action principle of the micro-nano bubble generating device 100 of the embodiment are as follows:
[0050] Specifically, as shown in the figure, Figures 1-5As shown, the shell 110 is a cylindrical structure, the right end is a liquid inlet 111, the left end is an outlet 113, and the upper end is a gas inlet 112. Inside the shell 110, from right to left, are arranged in order a first flow rate adjusting device 120, a first porous mesh 134, an impeller 131, and a second flow rate adjusting device 150. The impeller 131 is rotatably connected with the first porous mesh 134 and the shell 110. A second porous mesh 140 is sleeved on the impeller 131 (which can rotate or be fixed). The gas inlet 112 is opposite to the position of the first porous mesh 134. The first flow rate adjusting device 120 and the second flow rate adjusting device 150 can have the same structure, but are installed in opposite directions and have opposite effects.
[0051] After the liquid enters the shell 110 from the right, it first passes through the first flow rate adjusting device 120 to increase the flow rate of the liquid, thereby driving the impeller 131 to rotate, and the impeller 131 rotates together with the first porous mesh 134. When the gas enters the shell 110 through the gas inlet 112, it first passes through the first porous mesh 134, which shears and divides the gas in the liquid to form primary bubbles when rotating, and the bubbles are further sheared and divided by the impeller 131 to form micro-nano bubbles. The bubbles continue to move to the left, pass through the second porous mesh 140, and then flow into the second flow rate adjusting device 150 and out through the left outlet 113.
[0052] At this point, those skilled in the art should recognize that, although the present application has been shown and described in detail in the above embodiments, many other variations or modifications can be determined or deduced directly from the disclosure of the present application according to the principles of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.
Claims
1. A micro-nano bubble generating device, characterized by, Comprising: a housing comprising a liquid inlet, a gas inlet and an outlet; a first flow rate adjusting device disposed inside the housing, and a liquid entering the housing from the liquid inlet passes through the first flow rate adjusting device to increase the flow rate of the liquid; and a shearing device disposed inside the housing, the shearing device is located downstream of the first flow rate adjusting device in the direction of the liquid flow, and the shearing device rotates under the push of the liquid after the increase in speed, thereby shearing the gas flowing into the liquid from the gas inlet to form micro-nano bubbles, and the micro-nano bubbles are mixed in the liquid and flow out from the outlet.
2. The micro-nano bubble generating device according to claim 1, wherein the first flow rate adjusting device is cylindrical with a liquid inlet, and at least one liquid outlet is provided on the side wall of the first flow rate adjusting device, and the cross-sectional area of all the liquid outlets is smaller than that of the liquid inlet.
3. The micro-nano bubble generating device according to claim 2, wherein the first flow rate adjusting device further comprises at least one flow guide column disposed in front of the liquid inlet.
4. The micro-nano bubble generating device according to claim 1, wherein the shearing device comprises an impeller, the impeller comprises a rotating shaft and blades disposed on the outer periphery of the rotating shaft, the rotating shaft is rotatably connected with the housing, the blades are configured to drive the rotating shaft to rotate when the liquid flows to the blades along a predetermined direction, thereby shearing and dividing the gas in the liquid by the blades, wherein the predetermined direction is the direction of the liquid flow.
5. The micro-nano bubble generating device according to claim 4, wherein the shearing device further comprises a first porous mesh connected with the impeller to rotate with the impeller, thereby shearing and dividing the gas in the liquid.
6. The micro-nano bubble generating device according to claim 5, wherein the first porous mesh is located at the gas inlet and upstream of the impeller, so that the gas entering the housing from the gas inlet is first sheared and divided by the first porous mesh before flowing to the impeller for further shearing and dividing.
7. The micro-nano bubble generating device according to claim 5, further comprising a second porous mesh disposed in the housing, the second porous mesh is formed in a cylindrical shape with an opening and has an accommodation space inside to accommodate the impeller and at least part of the first porous mesh.
8. The micro-nano bubble generating device according to claim 7, wherein the second porous mesh is connected with the impeller to rotate with the impeller.
9. The micro-nano bubble generating device according to claim 7, further comprising a second flow rate adjusting device disposed downstream of the second porous mesh to reduce the flow rate of the liquid flowing out from the second porous mesh through the second flow rate adjusting device.
10. The micro-nano bubble generating device according to claim 9, wherein The second flow rate adjusting device is identical in structure to the first flow rate adjusting device, and is arranged in the housing in a direction opposite to the direction in which the first flow rate adjusting device is arranged in the housing.