Shearing flow-micropore coupled micro-nano bubble generating device

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a shear flow-micropore coupled micro-nano bubble generating device which comprises a device body, an inner pipe is fixed in the device body, a plurality of micropores are formed in the outer side of the inner pipe at equal intervals, an air inlet pipe is fixed to one side of the device body, and a connecting pipe is mounted at the top end of the device body. A blow-off pipe is fixed to one side of the connecting pipe, a bottom shell is installed at the bottom end of the device body, a liquid inlet pipe is fixed to the middle of the bottom shell, and a motor is installed at the bottom end in the bottom shell; the coating device further comprises a lifting shell, a liquid conveying pipe is fixed to one side of the top end of the lifting shell, a coating roller is arranged in the lifting shell and tightly attached to the surface of the inner pipe, and the liquid conveying pipe supplies an acid cleaning agent to the coating roller. The coating roller is driven by lifting of the lifting shell to coat the outer portion of the inner pipe with an acid cleaning agent, the cleaning agent can enter micropores of the inner pipe and react with jelly in the micropores to be dissolved, and therefore the situation that the micropores of the inner pipe are blocked to affect use is prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and specifically relates to a shear flow-micropore coupled micro-nano bubble generating device. Background Art

[0002] When treating sewage, a flocculant is required. The flocculant can adsorb the contaminants in the sewage. To improve the adsorption effect of the flocculant, a bubble generating device is used. The bubble generating device generates sub-micron bubbles for the flocculant, thereby enhancing the adsorption effect.

[0003] A Chinese patent with the publication number CN221471476U discloses a coupled microbubble generator, which solves the problems that the bubbles generated by the existing microbubble generators in a high gas-liquid ratio environment are large in size and poor in size uniformity.

[0004] In the above technical solution, during use, bubbles need to be generated inside the liquid through micropores. However, during use, substances in the liquid may accumulate inside the micropores, which will cause blockage of the micropores at this time. To prevent the blockage from affecting the use, the micropores need to be cleaned regularly. However, during the cleaning process, the device needs to be disassembled and assembled, which consumes a lot of time.

[0005] Therefore, the present invention provides a shear flow-micropore coupled micro-nano bubble generating device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: The present invention relates to a shear flow-micropore coupled micro-nano bubble generating device, which includes a device main body. An inner tube is fixed inside the device main body. A plurality of micropores are equidistantly arranged on the outer side of the inner tube, and the aperture of the micropores is ≤10um. An air inlet pipe is fixed on one side of the device main body. A connecting pipe is installed at the top end of the device main body. A sewage discharge pipe is fixed on one side of the connecting pipe. A bottom shell is installed at the bottom end of the device main body. A liquid inlet pipe is fixed in the middle of the bottom shell. The top end of the liquid inlet pipe is communicated with the bottom end of the inner tube. A motor is installed at the bottom end inside the bottom shell. A rotating rod is fixed at the end of the motor shaft. The top end of the rotating rod passes through the inside of the liquid inlet pipe and extends into the inside of the inner tube. A spiral blade is arranged inside the inner tube. The rotating rod is fixedly connected with the spiral blade; It further includes a lifting housing. A liquid infusion pipe is fixed on one side of the top end of the lifting housing. A coating roller is arranged inside the lifting housing. The coating roller is closely attached to the surface of the inner tube. The liquid infusion pipe supplies acidic cleaning agent for the coating roller; Wherein, the motor can drive the lifting housing to lift, driving the coating roller to coat the outer part of the inner tube with acidic cleaning agent.

[0008] Preferably, the lifting housing is sleeved outside the inner tube. A lead screw is threadedly connected to one side of the lifting housing. The lead screw is rotatably connected inside the device body. A fifth gear is fixed to the bottom end of the lead screw. A second gear is fixed to the bottom end of the rotating rod. A third gear is arranged inside the bottom case. The third gear can be meshed with the fifth gear and the second gear; Among them, the motor drives the lifting housing to rise, driving the coating roller to rise for coating the inner tube with acidic cleaning agent.

[0009] Preferably, an electric telescopic rod is installed inside the bottom case. A push frame is fixed to the end of the electric telescopic rod. The top end of the third gear is rotatably connected to one end of the push frame. Two mutually meshed fourth gears are rotatably connected to the other end of the push frame; Among them, the electric telescopic rod drives the push frame to switch the connection states of the third gear with the second gear and the fifth gear. At the same time, the connection states of the fourth gear with the second gear and the fifth gear can be switched through the push frame.

[0010] Preferably, a rotating housing is rotatably connected inside the lifting housing. The rotating housing is rotatably connected to the coating roller. A guide rod is slidably connected to the side of the lifting housing away from the lead screw. The guide rod is fixed inside the device body. A rotating sleeve is rotatably connected to one side of the lifting housing. A transmission gear is meshed between the rotating sleeve and the rotating housing. The transmission gear is rotatably connected to the lifting housing. A convex block is fixed inside the rotating sleeve. A chute is opened on the outer side of the guide rod. The convex block is slidably connected inside the chute; Among them, during the lifting process of the lifting housing, the convex block is guided by the chute of the guide rod, driving the rotating sleeve to rotate.

[0011] Preferably, a liquid guide housing is fixed to the top end inside the lifting housing. The bottom end of the infusion tube is communicated with the inside of the infusion tube. A rotating ring is rotatably connected to the bottom end inside the liquid guide housing. A liquid injection tube is fixed to the bottom end of the rotating ring. The liquid injection tube is inserted inside the coating roller. A sponge is arranged on the outer side of the coating roller; Among them, the liquid injection tube transports the liquid into the sponge of the coating roller.

[0012] Preferably, the other side of the connecting pipe is fixed with a bubble output pipe. A sphere is rotatably connected at the connection of the bubble output pipe and the sewage pipe. An L-shaped through hole is arranged inside the sphere; Among them, during the movement of the push frame, the sphere is driven to rotate to switch the pipeline connected by the connecting pipe.

[0013] Preferably, a first gear is fixed to the bottom end of the rotating shaft of the sphere. A rack is meshed with the side of the first gear away from the connecting pipe. The rack is slidably connected below the bubble output pipe through a connecting frame. A pull rod is fixed to the end of the push frame away from the electric telescopic rod. A steel wire is fixed to the end of the pull rod away from the push frame. The other end of the steel wire is fixedly connected to the end of the rack close to the bubble output pipe.

[0014] Preferably, a bracket for guiding the steel rope is arranged on the outer side of the device main body, and the steel rope penetrates through the inside of the bracket.

[0015] Preferably, a spiral spring is fixed to the top end of the rotating shaft of the sphere, and the bottom end of the spiral spring is fixedly connected to the connecting pipe.

[0016] Preferably, a plurality of cutting strips are fixedly arranged at equal intervals on the outside of the spiral blade, and the cutting strips are in close contact with the inner wall of the inner pipe.

[0017] The beneficial effects of the present invention are as follows: 1. For the micro-nano bubble generating device with shear flow-micropore coupling of the present invention, by lifting the lifting shell to drive the coating roller to coat the outside of the inner pipe with an acidic cleaning agent, the cleaning agent can enter the micropores of the inner pipe and react with the colloid in the micropores to dissolve it, thereby preventing the micropores of the inner pipe from being blocked and affecting the use.

[0018] 2. For the micro-nano bubble generating device with shear flow-micropore coupling of the present invention, by switching the communication state of the bubble output pipe and the sewage discharge pipe with the connecting pipe through the sphere, the liquid output through different pipelines in different states of the connecting pipe can be controlled, and the clean liquid is prevented from being output through the bubble output pipe to cause pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is a perspective view of the present invention; Figure 2 is another perspective view of the present invention; Figure 3 is a schematic diagram of the internal structure of the device main body in the present invention; Figure 4 is Figure 3 a partial enlarged view of part A in Figure 5 is a schematic diagram of the internal structure of the lifting shell in the present invention; Figure 6 is Figure 5 a partial enlarged view of part B in Figure 7 is a partial structural diagram of the rotating shell in the present invention; Figure 8 is a schematic diagram of the structure of the electric telescopic rod in the present invention; Figure 9 is a schematic diagram of the internal structure of the connecting pipe in the present invention.

[0021] In the figure: 1. Device main body; 11. Air inlet pipe; 12. Connecting pipe; 121. Sewage discharge pipe; 122. Bubble output pipe; 123. Sphere; 124. Coil spring; 125. First gear; 126. Rack; 13. Inner pipe; 2. Bottom shell; 21. Liquid inlet pipe; 22. Motor; 221. Rotating rod; 222. Helical blade; 223. Cutting strip; 224. Second gear; 23. Electric telescopic rod; 231. Pushing frame; 232. Third gear; 233. Fourth gear; 234. Pull rod; 235. Steel wire; 3. Lifting shell; 31. Infusion pipe; 311. Liquid guide shell; 312. Rotating ring; 313. Injection pipe; 314. Coating roller; 32. Lead screw; 321. Fifth gear; 33. Guide rod; 331. Rotating shell; 332. Rotating sleeve; 333. Transmission gear; 334. Convex block. Detailed implementation mode

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0023] As Figures 1 to 5 shown, a shear flow-micropore coupled micro-nano bubble generating device described in an embodiment of the present invention includes a device main body 1. An inner pipe 13 is fixed inside the device main body 1. A plurality of micropores are equidistantly arranged on the outer side of the inner pipe 13, and the pore diameter of the micropores ≤ 10um. An air inlet pipe 11 is fixed on one side of the device main body 1. A connecting pipe 12 is installed at the top end of the device main body 1. A sewage discharge pipe 121 is fixed on one side of the connecting pipe 12. A bottom shell 2 is installed at the bottom end of the device main body 1. A liquid inlet pipe 21 is fixed in the middle of the bottom shell 2. The top end of the liquid inlet pipe 21 is communicated with the bottom end of the inner pipe 13. A motor 22 is installed at the bottom end inside the bottom shell 2. A rotating rod 221 is fixed at the end of the rotating shaft of the motor 22. The top end of the rotating rod 221 passes through the inside of the liquid inlet pipe 21 and extends into the inside of the inner pipe 13. A helical blade 222 is arranged inside the inner pipe 13. The rotating rod 221 and the helical blade 222 are fixedly connected; It further includes a lifting shell 3. A liquid infusion pipe 31 is fixed on one side of the top end of the lifting shell 3. A coating roller 314 is arranged inside the lifting shell 3. The coating roller 314 is closely attached to the surface of the inner pipe 13. The liquid infusion pipe 31 supplies acidic cleaning agent to the coating roller 314; Among them, the motor 22 can drive the lifting shell 3 to lift, driving the coating roller 314 to coat the outer part of the inner pipe 13 with acidic cleaning agent; During the process of treating sewage, a flocculant is injected into the sewage. The flocculant adsorbs the contaminants in the sewage to achieve sewage treatment. However, when the flocculant is directly in contact with the sewage, the contact area between the flocculant and the contaminants is small, resulting in a large amount of the flocculant not coming into contact with the contaminants in the sewage, causing a great deal of waste. Therefore, it is necessary to generate bubbles in the flocculant to increase the contact area between the flocculant and the contaminants in the sewage, so that the flocculant can better adsorb the contaminants. When in use, the device main body 1 is installed. The liquid inlet pipe 21 is connected to the liquid inlet end, the air inlet pipe 11 is connected to an external air supply device, and the bubble output pipe 122 is connected to the output end. During the process of generating bubbles, the flocculant is input through the liquid inlet pipe 21 and is pushed into the interior of the inner pipe 13. At the same time, the external air supply device fills the interior of the device main body 1 with gas through the air inlet pipe 11. After the gas enters the interior of the device main body 1, it is in the chamber outside the inner pipe 13. Due to the gas pressure, the gas enters the micropores of the inner pipe 13 and forms bubbles in the flocculant inside the inner pipe 13 through the micropores. At this time, bubbles can be initially formed. At the same time, the motor 22 is started to drive the rotating rod 221 to rotate. The rotating rod 221 drives the spiral blade 222 to rotate inside the inner pipe 13. At this time, the rotation of the spiral blade 222 can form a high-speed flow field inside the inner pipe 13, thereby producing a shearing effect on the flocculant inside the inner pipe 13, so that the aerated bubbles in the micropores of the inner pipe 13 are sheared into smaller volumes. Then, the flocculant after generating bubbles is input into the interior of the connecting pipe 12 and then output to the sewage treatment location through the bubble output pipe 122. The sewage is treated by the output bubble flocculant; During use, the flocculant may form a gel-like substance, which is likely to block the micropores of the inner pipe 13. No bubbles can be generated inside the blocked micropores. Therefore, it is necessary to clean the micropores of the inner pipe 13 after long-term use. At this time, water is input through the liquid inlet pipe 21. The infusion pipe 31 is connected to a device that supplies an acidic cleaning agent externally. Then, the lifting housing 3 is driven to lift and lower by the motor 22. The lifting housing 3 drives the coating roller 314 to lift and lower. While lifting and lowering, the infusion pipe 31 injects the acidic cleaning agent into the interior of the coating roller 314. The acidic cleaning agent can be squeezed into the micropores of the inner pipe 13 through the coating roller 314. The acidic cleaning agent can dissolve the gel-like substance in the micropores of the inner pipe 13. At the same time, the airflow input through the air inlet pipe 11 pushes the dissolved substances into the interior of the inner pipe 13. The subsequent water flow inside the inner pipe 13 can discharge the dissolved substances to the outside, enabling the micropores of the inner pipe 13 to be cleaned without disassembling the device main body 1, saving a lot of time.

[0024] Such as Figures 1 to 8As shown in the figure, the lifting housing 3 is sleeved outside the inner tube 13. One side of the lifting housing 3 is threadedly connected with a lead screw 32. The lead screw 32 is rotatably connected inside the device main body 1. A fifth gear 321 is fixed at the bottom end of the lead screw 32. A second gear 224 is fixed at the bottom end of the rotating rod 221. A third gear 232 is arranged inside the bottom shell 2. The third gear 232 can be meshed and connected between the fifth gear 321 and the second gear 224; Among them, the motor 22 drives the lifting housing 3 to rise, driving the coating roller 314 to rise to coat the inner tube 13 with an acidic cleaning agent; When it is necessary to coat the outer part of the inner tube 13 with an acidic cleaning agent, the motor 22 drives the second gear 224 to rotate. The second gear 224 drives the fifth gear 321 to rotate through the third gear 232. The fifth gear 321 drives the lead screw 32 to rotate. The lead screw 32 drives the lifting housing 3 to rise. At this time, it can be realized that the motor 22 drives the coating roller 314 to coat the acidic cleaning agent.

[0025] As Figures 1 to 8 shown in the figure, an electric telescopic rod 23 is installed inside the bottom shell 2. A push frame 231 is fixed at the end of the electric telescopic rod 23. The top end of the third gear 232 is rotatably connected to one end of the push frame 231. The other end of the push frame 231 is rotatably connected to two meshing fourth gears 233; Among them, the electric telescopic rod 23 drives the push frame 231 to switch the connection state of the third gear 232 with the second gear 224 and the fifth gear 321. At the same time, the push frame 231 can switch the connection state of the fourth gear 233 with the second gear 224 and the fifth gear 321; While the motor 22 drives the second gear 224 to rotate, it will drive the spiral blade 222 to rotate through the rotating rod 221. At this time, because the spiral blade 222 is spiral, to normally output the liquid inside the inner tube 13, it is necessary to keep the spiral blade 222 rotating in the same direction. Therefore, when the lifting housing 3 rises to the top end inside the device main body 1, it is necessary to lower the lifting housing 3 for reset. At this time, the electric telescopic rod 23 is started to pull the push frame 231 to move. The push frame 231 drives the third gear 232 to separate from the second gear 224 and the fifth gear 321. Then the push frame 231 drives the two fourth gears 233 to mesh outside the fifth gear 321 and the second gear 224. At this time, the transmission direction of the second gear 224 to the fifth gear 321 can be changed through the two fourth gears 233. At this time, the fifth gear 321 drives the lead screw 32 to rotate in the reverse direction, and the lead screw 32 can drive the lifting housing 3 to descend, so as to realize the lifting of the lifting housing 3 without changing the rotation direction of the motor 22; In the normal use state, the second gear 224 does not need to drive the fifth gear 321. At this time, the electric telescopic rod 23 will drive the push frame 231 to move to the position between the fifth gear 321 and the second gear 224. At this time, neither the third gear 232 nor the fourth gear 233 meshes with the second gear 224 and the fifth gear 321, so that the fifth gear 321 does not affect the normal rotation of the motor 22.

[0026] As Figures 1 to 7 shown, a rotating shell 331 is rotatably connected inside the lifting shell 3. The rotating shell 331 is rotatably connected to the coating roller 314. A guide rod 33 is slidably connected to the side of the lifting shell 3 away from the lead screw 32. The guide rod 33 is fixed inside the device main body 1. A rotating sleeve 332 is rotatably connected to one side of the lifting shell 3. A transmission gear 333 is meshed between the rotating sleeve 332 and the rotating shell 331. The transmission gear 333 is rotatably connected to the lifting shell 3. A convex block 334 is fixed inside the rotating sleeve 332. A chute is formed on the outer side of the guide rod 33. The convex block 334 is slidably connected inside the chute; Among them, during the lifting process of the lifting shell 3, the convex block 334 is guided by the chute of the guide rod 33, so that the rotating sleeve 332 is driven to rotate; During the lifting process of the lifting shell 3, the chute of the guide rod 33 drives the convex block 334 to slide. At this time, the convex block 334 will drive the rotating sleeve 332 to rotate under the limiting action of the rotating sleeve 332. The rotating sleeve 332 drives the transmission gear 333 to rotate, which can drive the rotating shell 331 to rotate. At this time, during the lifting process of the lifting shell 3, the coating roller 314 can rotate around the outer side of the inner tube 13. At this time, the coating roller 314 can evenly coat the acidic cleaning agent on the outside of the inner tube 13.

[0027] As Figures 1 to 6 shown, a liquid guide shell 311 is fixed at the top end inside the lifting shell 3. The bottom end of the infusion tube 31 is communicated with the inside of the infusion tube 31. A rotating ring 312 is rotatably connected to the bottom end inside the liquid guide shell 311. A liquid injection tube 313 is fixed to the bottom end of the rotating ring 312. The liquid injection tube 313 is inserted into the inside of the coating roller 314. A sponge is arranged on the outer side of the coating roller 314; Among them, the liquid injection tube 313 transports the liquid into the sponge inside the coating roller 314; When the infusion tube 31 outputs the acidic cleaning agent, it will be directly input into the inside of the liquid guide shell 311. At this time, the liquid guide shell 311 can be input into the inside of the coating roller 314 through the liquid injection tube 313. The rotating ring 312 can rotate inside the liquid guide shell 311 to cooperate with the rotation of the coating roller 314. The infusion tube 31 is a flexible tube and can automatically bend when the lifting shell 3 is lifted or lowered. When the coating roller 314 rolls on the outside of the inner tube 13, it will squeeze the external sponge, and the acidic cleaning agent in the sponge will be squeezed into the inside of the micropores. At this time, the colloidal substances inside the micropores can be dissolved.

[0028] As Figure 9 shown, a bubble output pipe 122 is fixed to the other side of the connecting pipe 12. A sphere 123 is rotatably connected to the joint of the bubble output pipe 122 and the sewage discharge pipe 121. An L-shaped through hole is provided inside the sphere 123; Among them, during the movement of the push frame 231, the sphere 123 is driven to rotate to switch the pipeline connected to the connecting pipe 12; When the coating roller 314 cleans the outside of the inner pipe 13, in order to prevent the substances generated by cleaning from being output through the bubble output pipe 122 and causing pollution, the sphere 123 is used for switching. When the push frame 231 moves, the sphere 123 is driven to rotate. When the third gear 232 drives the fifth gear 321 and the second gear 224 to mesh, and when both the third gear 232 and the fourth gear 233 are separated from the fifth gear 321 and the second gear 224, the sphere 123 at this time is as Figure 9 shown, the connecting pipe 12 is internally connected to the bubble output pipe 122. During this process, the liquid inlet pipe 21 fills the inner pipe 13 with water and stops injecting water. Then the lifting housing 3 rises to drive the coating roller 314 to coat the outside of the inner pipe 13 with an acidic cleaning agent. Then when the lifting housing 3 drives the coating roller 314 to descend, the push frame 231 drives the sphere 123 to rotate. At this time, the connecting pipe 12 is internally connected to the sewage discharge pipe 121. At the same time, the liquid inlet pipe 21 continuously outputs water flow, and the water flow with dirt can be discharged to the outside through the sewage discharge pipe 121.

[0029] As Figures 1 to 9 shown, a first gear 125 is fixed to the bottom end of the rotating shaft of the sphere 123. A rack 126 is meshed with the side of the first gear 125 away from the connecting pipe 12. The rack 126 is slidably connected below the bubble output pipe 122 through a connecting frame. A pull rod 234 is fixed to the end of the push frame 231 away from the electric telescopic rod 23. A steel cable 235 is fixed to the end of the pull rod 234 away from the push frame 231. The other end of the steel cable 235 is fixedly connected to the end of the rack 126 close to the bubble output pipe 122; When the push frame 231 drives the fourth gear 233 to mesh with the fifth gear 321 and the second gear 224, the push frame 231 will pull the pull rod 234. The pull rod 234 pulls the steel cable 235 to enable the steel cable 235 to pull the rack 126. The rack 126 drives the first gear 125 to rotate, and the first gear 125 can drive the sphere 123 to rotate to switch the communication channel.

[0030] As Figures 1 to 9 shown, a bracket for guiding the steel cable 235 is arranged outside the device main body 1, and the steel cable 235 penetrates through the inside of the bracket; The steel cable 235 can be supported by the bracket so that the steel cable 235 can pull the rack 126 to move.

[0031] As shown Figures 1 to 9 in FIG. Figures 1 to 9 , a torsion spring 124 is fixed to the top end of the rotating shaft of the sphere 123, and the bottom end of the torsion spring 124 is fixedly connected to the connecting pipe 12; When the pushing frame 231 drives the sphere 123 to rotate, the torsion spring 124 will be tightened. When the pushing frame 231 returns to its original position, the sphere 123 loses the pulling force. At this time, the elastic force of the torsion spring 124 drives the sphere 123 to return to its original position. The sphere 123 drives the rack 126 to return to its original position through the first gear 125, which is convenient for subsequent use.

[0032] As shown Figures 1 to 4 in FIG. Figures 1 to 4 , a plurality of cutting strips 223 are fixedly arranged at equal intervals on the outside of the spiral blade 222, and the cutting strips 223 are in close contact with the inner wall of the inner pipe 13; When the rotating rod 221 drives the spiral blade 222 to rotate, the spiral blade 222 drives the cutting strips 223 to rotate. When the cutting strips 223 rotate, they can shear the bubbles generated by aerating the inner pipe 13.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A micro-nano bubble generating device coupling shear flow and micro-pores, characterized in that: It includes a device body, an inner tube is fixedly installed inside the device body, a plurality of micropores are equidistantly arranged on the outer side of the inner tube, the aperture of the micropores ≤ 10um, an air inlet pipe is fixedly installed on one side of the device body, a connecting pipe is installed at the top end of the device body, a sewage discharge pipe is fixedly installed on one side of the connecting pipe, a bottom shell is installed at the bottom end of the device body, a liquid inlet pipe is fixedly installed in the middle of the bottom shell, the top end of the liquid inlet pipe is communicated with the bottom end of the inner tube, a motor is installed at the bottom end inside the bottom shell, a rotating rod is fixedly installed at the end of the motor shaft, the top end of the rotating rod passes through the inside of the liquid inlet pipe and extends into the inside of the inner tube, a spiral blade is arranged inside the inner tube, and the rotating rod is fixedly connected with the spiral blade; It further includes a lifting shell, a liquid infusion pipe is fixedly installed on one side of the top end of the lifting shell, a coating roller is arranged inside the lifting shell, the coating roller is pressed against the surface of the inner tube, and the liquid infusion pipe supplies acidic cleaning agent to the coating roller; Wherein, the motor can drive the lifting shell to lift, and drive the coating roller to coat the outer part of the inner tube with acidic cleaning agent.

2. The micro-nano bubble generating device with shear flow-micropore coupling according to claim 1, wherein: The lifting shell is sleeved outside the inner tube, a lead screw is threadedly connected to one side of the lifting shell, the lead screw is rotatably connected inside the device body, a fifth gear is fixedly installed at the bottom end of the lead screw, a second gear is fixedly installed at the bottom end of the rotating rod, a third gear is arranged inside the bottom shell, and the third gear can be meshed with the fifth gear and the second gear; Wherein, the motor drives the lifting shell to rise, driving the coating roller to rise to coat the inner tube with acidic cleaning agent.

3. The micro-nano bubble generating device with shear flow-micropore coupling according to claim 2, wherein: An electric telescopic rod is installed inside the bottom shell, a pushing frame is fixedly installed at the end of the electric telescopic rod, the top end of the third gear is rotatably connected to one end of the pushing frame, and the other end of the pushing frame is rotatably connected to two mutually meshing fourth gears; Wherein, the electric telescopic rod drives the pushing frame to switch the connection states of the third gear with the second gear and the fifth gear, and at the same time, the connection states of the fourth gear with the second gear and the fifth gear can be switched through the pushing frame.

4. The micro-nano bubble generating device with shear flow-micropore coupling according to claim 2, characterized in that: A rotating shell is rotatably connected inside the lifting shell, the rotating shell is rotatably connected with the coating roller, a guide rod is slidably connected to one side of the lifting shell away from the lead screw, the guide rod is fixedly installed inside the device body, a rotating sleeve is rotatably connected to one side of the lifting shell, a transmission gear is meshed between the rotating sleeve and the rotating shell, the transmission gear is rotatably connected with the lifting shell, a convex block is fixedly installed inside the rotating sleeve, a chute is arranged on the outer side of the guide rod, and the convex block is slidably connected inside the chute; Wherein, during the lifting process of the lifting shell, the convex block is guided by the chute of the guide rod, so that the rotating sleeve is driven to rotate.

5. A micro-nano bubble generating device coupling shear flow and micropores according to claim 4, characterized in that: A liquid guide shell is fixedly installed at the top end inside the lifting shell, the bottom end of the liquid infusion pipe is communicated with the inside of the liquid infusion pipe, a rotating ring is rotatably connected to the bottom end inside the liquid guide shell, a liquid injection pipe is fixedly installed at the bottom end of the rotating ring, the liquid injection pipe is inserted into the inside of the coating roller, and a sponge is arranged on the outer side of the coating roller; Wherein, the liquid injection pipe transports the liquid into the sponge of the coating roller.

6. The micro-nano bubble generating device with shear flow-micropore coupling according to claim 3, characterized in that: Another side of the connecting pipe is fixedly installed with a bubble output pipe, a sphere is rotatably connected at the connection of the bubble output pipe and the sewage discharge pipe, and an L-shaped through hole is arranged inside the sphere; Wherein, during the movement of the pushing frame, the sphere is driven to rotate to switch the pipeline communicated with the connecting pipe.

7. A micro-nano bubble generating device with shear flow-micropore coupling according to claim 6, characterized in that: A first gear is fixed to the bottom end of the rotating shaft of the sphere. A rack is meshed and connected to the side of the first gear away from the connecting pipe. The rack is slidably connected below the bubble output pipe through a connecting frame. A pull rod is fixed to the end of the pushing frame away from the electric telescopic rod. A steel cable is fixed to the end of the pull rod away from the pushing frame. The other end of the steel cable is fixedly connected to the end of the rack close to the bubble output pipe.

8. A micro-nano bubble generating device coupling shear flow and micro-pores according to claim 7, characterized in that: A bracket for guiding the steel cable is arranged on the outer side of the device main body, and the steel cable penetrates through the inside of the bracket.

9. A micro-nano bubble generating device coupling shear flow and micropores according to claim 7, characterized in that: A torsion spring is fixed to the top end of the rotating shaft of the sphere, and the bottom end of the torsion spring is fixedly connected to the connecting pipe.

10. A micro-nano bubble generation device coupling shear flow and micropores according to claim 1, characterized in that: A plurality of cutting strips are fixedly arranged at equal intervals on the outside of the spiral blade, and the cutting strips are in close contact with the inner wall of the inner pipe.

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