CN111220514A - Underwater microbubble and floc measuring device thereof - Google Patents
Underwater microbubble and floc measuring device thereof Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
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- 238000012216 screening Methods 0.000 abstract description 2
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- 238000006073 displacement reaction Methods 0.000 description 1
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
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Abstract
The invention relates to an underwater micro-bubble measuring device suitable for an air floatation process, which comprises a transparent sealed cavity, a transparent observation chamber, an illuminating device, a camera and a conveying device, wherein the transparent observation chamber is positioned in the cavity and is communicated with a water body up and down; the sealed cavity floats below the water surface; the lighting device comprises a shading chamber and a light source arranged on the left side of the shading chamber; the transmission device comprises a conveyor belt, a driven transmission device connected with the conveyor belt, a transmission rod and a driving transmission device; the driving transmission device is arranged on a fixed platform above the observation device and is connected with the driven transmission device through a transmission rod; the camera is fixed on the conveyor belt; the invention reduces the error caused by the change of the bubbles in the process of leading out the bubble-containing water for sampling, provides important technical support for screening excellent air floatation equipment and improving the performance of the corresponding air floatation equipment, and has important significance for promoting the development of the air floatation process.
Description
Technical Field
The invention relates to the technical field of air flotation water treatment, in particular to an underwater microbubble and floc measuring device thereof.
Technical Field
The air floatation treatment process is more and more widely applied to the field of water treatment, the air floatation technology can solve the problems which cannot be solved by the traditional precipitation process, such as the solid-liquid separation problem of low-temperature low-turbidity high-algae water body, and has the characteristics of less investment, small floor area, high automation degree, convenient operation and management and the like. The air floatation technology utilizes the characteristics of small microbubble volume, large specific surface area, hydrophobic bubble surface, good adhesion performance and the like, and has good separation effect on flocs and hydrophobic particulate matters in water. The air floatation technology plays an important role in the treatment of low-temperature low-turbidity high-algae water. Flocculation-air flotation processes have also found wide application in water and wastewater treatment, mineral separation, papermaking and hydrometallurgy. The technical application of the method can effectively separate solid, liquid, solid, oil or oil and water. Reducing the bubble size and surface charge during flotation becomes a possibility to optimize the flotation efficiency. The smaller the bubble size is, the better the flotation effect is, and the research shows that the efficiency of removing pollutants in water by the micro-nano bubbles is the highest. Therefore, the size of the bubbles is monitored and controlled, and the method is very helpful for improving the application effect of the air floatation technology in water treatment.
The existing methods for measuring the size of bubbles mainly comprise an image analysis method, a laser diffraction method, a light guide probe method and the like, but are mostly suitable for measuring devices in laboratories and transparent reactors, the measuring technology for generating a large amount of microbubbles by using air floatation equipment in the actual production process is less, the air release performance of a releaser cannot be monitored in real time, the product performance of a certain type of dissolved air tank and the releaser cannot be detected, a unified detection device is lacked for various air floatation products on the market, and the sizes of the microbubbles generated by various products cannot be measured really.
Disclosure of Invention
In order to solve the problems, the invention discloses a device suitable for measuring underwater microbubbles and flocs thereof, which can measure the sizes of bubbles and gas-entrapped flocs around a releaser and observe the adhesion process of the bubbles and the flocs. The device realizes measurement under the condition of not disturbing the underwater liquid environment, avoids experimental errors caused by changes of the size and the shape of bubbles in the water diversion sampling process, and has the characteristics of high experimental data reliability, visible images, simple structure and the like.
An underwater microbubble and floc measuring device comprises a transparent sealed cavity, a transparent observation chamber which is positioned in the cavity and is communicated with a water body up and down, an illuminating device positioned on the left side of the cavity, a camera positioned on the right side of the cavity and a transmitting device; the sealed cavity floats below the water surface; the lighting device comprises a shading chamber and a light source arranged on the left side of the shading chamber; the transmission device comprises a conveyor belt, a driven transmission device connected with the conveyor belt, a transmission rod and a driving transmission device; the driving transmission device is arranged on a fixed platform above the observation device and is connected with the driven transmission device through a transmission rod; the camera is fixed on the conveyor belt.
The underwater microbubble and floc measuring device is characterized in that a convex lens is arranged on the right side of the shading chamber.
The underwater microbubble and floc measurement device further comprises an electronic control device, wherein the electronic control device comprises: a computer, a signal transmission line and a power supply; the computer and the power supply are respectively connected with the camera and the light source through signal transmission lines penetrating through the connecting pipes.
The underwater microbubble and floc measuring device comprises a driving transmission device and a driving transmission device, wherein the driving transmission device comprises a rotating handle, a driving gear and a driven gear which are sequentially connected; the driven transmission device comprises a driven transmission device driving gear, a driven transmission device driven gear and a driven transmission device transmission gear which are connected in sequence; the driven gear of the driving transmission device is connected with the driving gear of the driven transmission device through a transmission rod; and the driven gear of the driven transmission device is connected with the transmission gear through the transmission belt.
The underwater microbubble and floc measuring device is characterized in that the illuminating device is fixed on the supporting rod through a fixed cradle head and forms an included angle of 5 degrees with a vertical plane.
The underwater microbubble and floc measuring device is characterized in that an eyepiece micrometer is embedded in the outer surface of the right side of the observation chamber.
The underwater microbubble and floc measuring device is characterized in that a convex lens on the right side of the illuminating device, the eyepiece micrometer and the camera center are on the same straight line.
The underwater microbubble and floc measuring device is characterized in that a horn-mouth flow baffle is arranged at the bottom of the observation chamber 1.
The underwater microbubble and floc measuring device is characterized in that the connecting pipe and the transmission rod are telescopic devices.
The invention can measure the size of the bubbles generated by the releaser and the size of the flocs in the water body in real time by extending the lighting and the camera into the water for observation, and obtain the photos of the bubbles generated near the releaser and the flocs with air in the water, thereby reducing the errors caused by the breakage and the change of the bubbles and the flocs in the motion process and improving the reliability of experimental data.
The lighting device adopts the convex lens to perform spotlight lighting, thereby providing sufficient lighting conditions for observing the visual field. The observation chamber is arranged in the observation device and is connected with the observation device into a whole, so that the influence of the water inlet and outlet pipes on bubbles is reduced, the turbulent fluctuation of water flow is reduced, and the great influence on the whole operation water body condition is avoided. The connecting pipe adopts the telescopic device, can be according to the length of different depth of water regulation connecting pipe, is convenient for adapt to the air supporting pond reactor of co-altitude not, realizes the control to the releaser distance.
The camera is finely adjusted by adopting the gear transmission device, so that the camera can be better focused; the bottom platform of the transmission device is provided with a scale, so that the distance required to be moved and adjusted can be obtained through calculation, and the moving distance can be better mastered; the gear transmission device can be controlled at a long distance and can be operated at the side of the pool, the underwater camera is controlled, the adjustment of the observation definition of bubbles and flocs in water is facilitated, and the problem of inaccurate focusing outside the pool is solved.
The invention carries out sealing protection on the instrument and equipment which extend into the water, thereby avoiding the possibility of experiment interruption caused by equipment failure due to water inlet of the instrument; the observation chamber is communicated with the water body, so that the free flow of bubbles in water can be realized, the shapes of the bubbles and flocs in the dynamic water flow process can be observed, and data support can be provided for better research and analysis of the bubbles and the flocs; the observation chamber and the vertical plane form an included angle of 5 degrees, so that bubbles and flocs in water can be spread on the flat plate, accumulation and overlapping of the bubbles and the flocs caused by overlarge angle are avoided, and bubble disorder and floc breakage caused by overlarge water flow impact can be reduced; the observation room right side has eyepiece micrometer chi, can realize the measurement to aquatic microbubble and floc size, can directly perceivedly measure through the scale after shooing.
The invention adopts the CCD high-speed microscopic camera and the electronic transmission equipment thereof, realizes the photographing record of bubbles and flocs in water by setting the frame rate and the exposure time, can carry out real-time analysis, and provides reliable data support for later data processing and experimental analysis.
The invention has the advantages of
The invention realizes the real-time measurement of the size of bubbles generated by a releaser in the air floatation process reactor and air-entrained flocs, effectively solves the problem that the traditional bubble measurement technology cannot measure the bubbles and the flocs in the air floatation tank in production application, can carry out measurement at the place where the bubbles are released, reduces the error caused by the change of the bubbles in the process of extracting the water containing the bubbles for sampling, has the advantages of simple test equipment, convenient operation, high efficiency, strong data reliability and the like, can be widely applied to the performance detection of various air floatation devices, provides important technical support for screening excellent air floatation devices and improving the performance of the corresponding air floatation devices, and has important significance for promoting the development of the air floatation process.
Drawings
FIG. 1 is a schematic cross-sectional view of an apparatus;
FIG. 2 is a perspective view of the device;
FIG. 3 is a schematic view of an imaging device;
FIG. 4 is a schematic view of an illumination device;
FIG. 5 is an enlarged view of the drive assembly 18;
FIG. 6 is a schematic view of the gears of the drive transmission 18;
fig. 7 is an enlarged view of the driven transmission 13;
FIG. 8 is a schematic gear diagram of the driven transmission 13;
fig. 9 is a schematic view of a conveyor belt.
The device comprises the following components: 1. an observation room; 2. a flow baffle plate; 3. an ocular micrometer; 4. a light shielding chamber; 5. fixing the holder; 6. a support base; 7. a light source; 8. a lenticular sheet; 9. fixing the support rod; 10. an electric wire; 11. a high power micro camera; 12. a conveyor belt; 13. a driven transmission device; 14. a transmission gear; 15. a transmission rod; 16. a sealing cover; 17. an observation device; 18. an active transmission; 19. a power source; 20. a control computer; 21. a signal transmission line; 22. rotating the handle; 23. a drive gear of the drive transmission; 24. a drive transmission driven gear; 25. a driven transmission drive gear; 26. a driven gear of the driven transmission; 27. a driven transmission gear; 28. a support pillar; 29. supporting the rotating disc; 30. a connecting pipe; 31. a fixing device; 32. a stress beam; 33. a handle connecting rod; 34. internal teeth of the conveyor belt; 35. a scale; 36. a fixed platform; 37. a telescopic regulator.
Detailed description of the invention
An underwater microbubble and its floc measuring device and method is composed of lighting device, camera, transmitter and electronic controller. The lighting device comprises a shading chamber 4, a light source 7, a convex lens 8, a fixed cloud platform 5 and a fixed supporting rod 9; the camera device comprises a high power micro camera 11, a fixed tripod head 5, a supporting base 6 and a scale 35; the conveying device comprises a fixed supporting rod 9, a conveying belt 12, a driven transmission device 13, a transmission rod 15 and a driving transmission device 18; the electronic control device comprises a control computer 20, a signal transmission line 21 and a power supply 19.
The observation device 17 is a sealed transparent body, and the two sides of the box body are provided with detachable sealing covers 16, so that the device can be kept dry and does not enter water after being screwed and immersed in water. The observation device 17 contains an observation room 1, an illumination room and a camera room, wherein the illumination room is communicated with the camera room, and the observation room 1 is arranged in the observation device 17 and is communicated with the water body up and down. An eyepiece micrometer 3 is embedded on the outer surface of the right side of the observation chamber 1, so that focusing of an original visual field lens can be realized, and an observation visual field can be conveniently found. The bottom of the observation chamber 1 is provided with a bell-mouthed flow baffle 2, so that bubble water and floc thereof can enter the observation chamber 1 under the flowing of water flow. Observation chamber 1 is 5 contained angles with vertical direction, is equipped with fixed stay 9 in the viewing device 17, and fixed stay 9 is 5 contained angles with viewing device 17 bottom to make fixed stay 9 can be perpendicular with observation chamber 1.
The shading lamp chamber 4 is internally connected with an LED lamp 7, the right side of the lamp chamber is provided with a convex lens 8, so that light beams can be focused at the center of the observation chamber 1, and sufficient light preparation is provided for observing the visual field. The shading chamber 4 is arranged on the fixed cloud platform 5 and then fixed on the fixed supporting rod 9, the shading lamp chamber 4 and the fixed cloud platform 5 can be put in from the left side of the observation device, and then the sealing cover 16 is screwed down.
High power micro camera 11 places on supporting base 6 through being connected with fixed cloud platform 5, supports 6 left sides of base and has placed scale 35, can confirm displacement distance when sliding, supports 6 fixes on conveyer belt 12 of base. The camera device can be inserted from the right side of the viewing device 17 and the sealing cap 16 can be tightened.
The conveyer belt 12 is fixed in the middle of the fixed support rod 9, and through controlling the rotating handle 22 of the driving transmission device 18, the driving transmission device driving gear 23, the driving transmission device driven gear 24, the connecting rod 15, the driven transmission device driving gear 25, the driven transmission device driven gear 26 and the driven transmission device transmission gear 27 are sequentially driven to rotate, so that the camera device can move in the observation device 17, and fine adjustment and movement of objects in water from the outside of the water body are realized. The conveyor belt 12 has internal teeth 34 therein to effect rotation of the conveyor belt 12. The driving transmission device 18 is fixed on the platform above the connecting pipe 30, and the bottom of the driven gear 24 of the driving transmission device is provided with a supporting rotating disk 29, so that the driven gear 24 of the driving transmission device can freely rotate and is supported. The driven gear 26 is a primary-secondary drive gear attached to the driven gear 27. The driven transmission drive gear 25 is perpendicular to the driven transmission driven gear 26.
The transmission rod 15, the signal transmission line 21 and the electric wire 10 are all placed in the connecting pipe 30, and the inside of the whole observation device 17 is dry and anhydrous. The connecting pipe 30 and the transmission rod are telescopic devices, so that field measurement on air flotation tanks at different depths can be realized.
Before the experiment, the height of the air flotation tank is measured from the outside, the height of the releaser is determined, and the length of the connecting pipe 30 and the transmission rod 15 is adjusted. The left sealing cover 16 of the observation device 17 is opened, the shading chamber 4 is installed on the fixed cloud platform 5 and is fixedly connected with the fixed supporting rod 9, the electric wire 10 is connected with the power plug on the shading lamp chamber 4 and extends out of the connecting pipe 30 to be plugged into the power supply 19, and the left sealing cover 16 is screwed after the placement is finished. The high power micro-camera 11 is placed on the fixed tripod head 5, screwed and fixed, the right sealing cover of the observation device 17 is opened, the scale 35 is fixed on the fixed support rod 9 in a welt way, and the fixed tripod head 5 with the high power micro-camera 11 is connected above the support base 6. After the signal transmission line 21 is connected with the camera 11, it is extended from the connecting pipe 30 to be connected with the control computer. The sealing cap 16 on the right side of the viewing device 17 is screwed down. The observation device 17 is put into water until the observation device descends to a designated height, and the fixed platform 36 is connected and fixed with the railing at the side of the pool. The power supply 19 is turned on, the light of the LED lamp 7 is gathered to the center of the observation room 1, the control computer 20 and the camera 11 are sequentially turned on, the driving gear 23 of the driving transmission device, the driven gear 24 of the driving transmission device, the connecting rod 15, the driving gear 25 of the driven transmission device, the driven gear 26 of the driven transmission device, the transmission gear 27 of the driven transmission device and the transmission gear 14 are sequentially driven to rotate by controlling the rotating handle 22 of the driving transmission device 18, the focal distance is adjusted, bubbles in a picture are made to be clearly visible, and the picture is focused in front of the cross scale of the eyepiece micrometer 3. When the flow state in the observation room 1 is stable, a recording button in the control computer 20 is clicked to record the bubble and floc moving images thereof, and Image-ProPremier software is used for analyzing and calculating the recorded images. After acquiring a plurality of groups of experimental images and data, the high power micro-camera 11, the control computer 20 and the power supply 19 are closed, the fixed platform 36 is separated from the side of the pool, the observation device 17 and the connecting pipe 30 are taken out of the water body, the surface of the observation device 17 is wiped, after wiping, the sealing covers 16 on the left side and the right side of the observation device are unscrewed, the illuminating device and the camera device are taken out, the instrument equipment is picked up and arranged, and the next image arrangement and data analysis work is carried out.
Claims (9)
1. An underwater microbubble and floc measuring device is characterized in that: comprises a transparent sealed cavity, a transparent observation chamber (1) which is positioned in the cavity and is communicated with the water up and down, an illuminating device positioned on the left side of the cavity, a camera (11) positioned on the right side of the cavity and a conveying device; the sealed cavity floats below the water surface;
the lighting device comprises a shading chamber (4), a light source (7) arranged on the left side of the shading chamber (4) and a convex lens sheet (8) arranged on the right side of the shading chamber (4);
the transmission device comprises a conveyor belt (12), a driven transmission device (13) connected with the conveyor belt (12), a transmission rod (15) and a driving transmission device (18); the driving transmission device (13) is arranged on a fixed platform (36) above the observation device (17) and is connected with the driven transmission device (13) through a transmission rod (15);
the camera (11) is fixed on the conveyor belt (12).
2. The underwater microbubble and its floc measurement device of claim 1, wherein: and a convex lens (8) is arranged on the right side of the shading chamber (4).
3. The underwater microbubble and its floc measurement device of claim 1, wherein: still include electronic control device, electronic control device includes: a computer (20), a signal transmission line (21) and a power supply (19); the computer (20) and the power supply (19) are respectively connected with the camera (11) and the light source (7) through a signal transmission line (19) passing through a connecting pipe (30).
4. The underwater microbubble and its floc measurement device of claim 1, wherein: the driving transmission device (18) comprises a rotating handle (22), a driving gear (23) of the driving transmission device and a driven gear (24) of the driving transmission device which are connected in sequence; the driven transmission device (13) comprises a driven transmission device driving gear (25), a driven transmission device driven gear (26) and a driven transmission device transmission gear (27) which are sequentially connected; the driven gear (24) of the driving transmission device is connected with the driving gear (25) of the driven transmission device through a transmission rod; the driven gear (26) of the driven transmission device is connected with the transmission gear (14) through the transmission belt (12).
5. The underwater microbubble and its floc measurement device of claim 1, wherein: the lighting device is fixed on the supporting rod (9) through the fixed cradle head (5) and forms an included angle of 5 degrees with the vertical plane.
6. The underwater microbubble and its floc measurement device of claim 1, wherein: an eyepiece micrometer (3) is embedded on the outer surface of the right side of the observation chamber.
7. The underwater microbubble and its floc measurement device of claim 1, wherein: the convex lens (8) on the right side of the lighting device, the eyepiece micrometer (3) and the center of the camera (11) are on the same straight line.
8. The underwater microbubble and its floc measurement device of claim 1, wherein: and a bell-mouth-shaped flow baffle (2) is arranged at the bottom of the observation chamber (1).
9. The underwater microbubble and its floc measurement device of claim 1, wherein: the connecting pipe (30) and the transmission rod (15) are telescopic devices.
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| CN202010135209.4A CN111220514B (en) | 2020-03-02 | 2020-03-02 | Underwater microbubble and floc measuring device thereof |
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| CN202010135209.4A CN111220514B (en) | 2020-03-02 | 2020-03-02 | Underwater microbubble and floc measuring device thereof |
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| CN113252488A (en) * | 2021-05-28 | 2021-08-13 | 郑州铁路职业技术学院 | Pier is detection device under water |
| CN114354603A (en) * | 2022-01-10 | 2022-04-15 | 无锡工源环境科技股份有限公司 | Air supporting algae-laden water separation observation equipment |
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