Floating water pollution detection device

Abstract

The application belongs to the technical field of water pollution detection, and particularly relates to a floating water pollution detection device, which comprises a floating boat, a discharge pipe opening is formed in the floating boat, first and second winding machines are respectively connected to the two sides of the discharge pipe opening, a pressing sleeve is clamped on a rope discharger of the first winding machine, a water pipe is slidably connected in the pressing sleeve, one end of the water pipe is wound and connected to the first winding machine, the other end of the water pipe extends to the detection box below the floating boat through the discharge pipe opening and is connected to the detection box through a support, a sensing module is installed on the top of the detection box, a water inlet cylinder is clamped on the port at the bottom of the water pipe, and a filter plate is clamped on the bottom of the water inlet cylinder. In the application, the first winding machine, the second winding machine, water pipe pressurization and valve cover automatic plugging are synchronously controlled, the detection box is stably stayed at a predetermined depth, the depth error is reduced, and the pollution detection precision of each water layer is improved.

Description

Technical Field

[0001] This invention belongs to the field of water pollution detection technology, specifically a floating water pollution detection device. Background Technology

[0002] Environmental monitoring involves systematically measuring representative values ​​of key factors affecting environmental quality to determine environmental quality and its changing trends. Water pollution monitoring is an important component of environmental monitoring. In actual monitoring, water robots with timed inspection functions are usually used to automatically inspect target water areas at preset time intervals to achieve continuous and efficient monitoring of water pollution.

[0003] Existing technologies disclose several invention patents in the field of water pollution detection. Among them, invention patent CN111532385B discloses a seawater pollution monitoring device and method. Addressing the problem that existing methods cannot detect seawater at different depths and cannot accurately reflect the pollution situation, the following solution is proposed: The monitoring device includes a hull with a propeller at the stern and a cabin at the top. A bracket is fixedly installed on the top of the hull, and a top plate is fixedly installed on the top of the bracket. A movable plate is slidably installed on the bottom of the top plate. A winding shaft is rotatably installed on one side of the movable plate, and a winding rope is installed on the winding shaft. A wireless motor is fixedly installed at one end of the winding rope. This facilitates the detection of seawater at different depths, providing a more comprehensive understanding of the seawater pollution situation. It also facilitates cleaning of the inside of the detection chamber, preventing seawater residue from affecting the detection results. Existing floating water pollution detection devices generally do not fully consider the impact of water flow on detection accuracy. Due to the impact force generated by water flow, the sensor module is prone to positional shift, deviating from the preset detection point, thus significantly reducing the accuracy and reliability of the detection.

[0004] Based on this, the present invention designs a floating water pollution detection device to solve the above problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a floating water pollution detection device. This invention primarily addresses the problem that existing floating water pollution detection devices generally do not adequately consider the impact of water flow on detection accuracy. Due to the impact force generated by water flow, the sensing module is prone to positional shift, deviating from the preset detection site, thus significantly reducing the accuracy and reliability of the detection.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: a floating water pollution detection device, including a floating vessel; the floating vessel has a discharge port, and a first winding machine and a second winding machine are respectively connected to both sides of the discharge port on the floating vessel. A compression sleeve is clamped on the rope feeder of the first winding machine, and a water pipe is slidably connected inside the compression sleeve. One end of the water pipe is wound and connected to the first winch, and the other end of the water pipe extends through the discharge port to the bottom of the floating vessel and is connected to a detection box via a bracket. A sensing module is installed on the top of the detection box. A water inlet cylinder is clamped at the bottom end of the water pipe, and a filter plate is clamped at the bottom of the water inlet cylinder. A valve cover is provided on the inner bottom of the water inlet cylinder, and the valve cover is hinged to the inner wall of the water inlet cylinder via a valve shaft. A first discharge pipe is connected to the outer wall of the water pipe near the valve cover; a first one-way valve is installed on the discharge pipe.

[0007] The second winch has a sliding sleeve attached to its rope guide, and an air pipe is slidably connected inside the sliding sleeve. One end of the air pipe is wound around the first winch, and the other end of the air pipe is connected to the outer wall of the water pipe near the valve cover. A first solenoid valve is installed on the air pipe near the valve cover.

[0008] Preferably, a top cover is snapped into the outlet of the pipe, and a first sleeve and a second sleeve are snapped into the top of the top cover respectively. The water pipe is slidably connected inside the first sleeve, and the air pipe is slidably connected inside the second sleeve.

[0009] The floating vessel is equipped with a first fixed pulley and a second fixed pulley. The water pipe slides on the first fixed pulley for water pipe drive and guidance, and the air pipe slides on the second fixed pulley for air pipe drive and guidance.

[0010] Preferably, a sliding plate is slidably connected to the inner wall of the detection box, a U-shaped groove is provided on the sliding plate, a sealing ring is fitted on the sliding plate corresponding to the U-shaped groove, an electric cylinder is installed on the inner wall of the detection box, a partition plate is snapped onto the inner wall of the detection box and slidably connected to the telescopic end of the electric cylinder, and the telescopic end of the electric cylinder is connected to the sliding plate.

[0011] Preferably, a cleaning groove is provided on the top wall of the detection box corresponding to the sensing module, and a cleaning tube is connected to the outer wall of the detection box along the tangential direction of the cleaning groove. The other end of the cleaning tube is connected to the outer wall of the trachea, and the port of the cleaning tube is located above the first solenoid valve. A second solenoid valve is installed on the cleaning tube.

[0012] The cleaning tank is embedded with a first housing. The outer wall of the first housing is provided with a first diversion groove. The inner wall of the first diversion groove is fitted with a plurality of first diversion fins arranged in a ring array. The ends of the first diversion fins are provided with downward inclined cleaning ports.

[0013] Preferably, the inner wall of the first diversion channel is connected to a plurality of first impeller blades corresponding to a plurality of first diversion fins, and a plurality of electric heating tubes are installed on the inner wall of the first diversion channel;

[0014] The bottom of the detection box is connected to a second discharge pipe, and a second one-way valve is installed on the second discharge pipe.

[0015] Preferably, the floating vessel is equipped with an air pump, the end of the air pipe is connected to the output end of the air pump, the output end of the air pump is also connected to a first drying pipe, the other end of the first drying pipe is connected to a pulse generating mechanism, the other end of the pulse generating mechanism is connected to a second drying pipe, the other end of the second drying pipe is connected to a drain outlet and is arranged tangentially along the inner wall of the drain outlet, and a third solenoid valve is installed on the second drying pipe.

[0016] Preferably, a second housing is rotatably connected inside the outlet pipe, and a plurality of second diversion fins arranged in a ring array are connected to the inner annular surface of the second housing, and a plurality of second impeller blades are connected to the inner wall of the second housing.

[0017] Preferably, the pulse generating mechanism includes a pulse generating tube, the two ends of which are respectively connected to the ends of a first drying tube and a second drying tube. A fan impeller is rotatably connected inside the pulse generating tube, and a drive shaft is connected to the shaft center of the fan impeller. The other end of the drive shaft is connected to a movable disk. A plurality of first pulse holes in a circular array are opened on the movable disk. A fixed disk that fits and connects to the movable disk is snapped into the pulse generating tube. A plurality of second pulse holes are opened on the fixed disk corresponding to the plurality of first pulse holes.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. In this invention, by synchronously controlling the first winch, the second winch, the water pipe pressurization, and the valve cover automatic sealing, the detection box is ensured to remain stably at the predetermined depth, reducing depth error and improving the detection accuracy of pollution in each water layer.

[0020] 2. In this invention, the electric cylinder drives the sliding plate to achieve precise exposure and retraction of the detection head, supporting timely water sample introduction and discharge, and secondary detection after intervals, which facilitates the analysis of pollutant concentration change trends per unit time.

[0021] 3. In this invention, water stains are removed without dead angles and dried quickly by switching the air path, tilting the airflow, electric heating and rotating cleaning port, avoiding the decrease in accuracy and corrosion caused by moisture, and extending the life of the sensing module.

[0022] 4. In this invention, the airflow impacts the first impeller blade to drive the cleaning port in a circular motion, eliminating the need for an additional motor, thus improving energy efficiency and integration, and achieving all-round coverage cleaning.

[0023] 5. In this invention, the linkage compression sleeve and one-way valve automatically drain water during winding to avoid water accumulation and corrosion. At the same time, the drying airflow drives the rotation of the second diversion fins to remove the adhering substances on the surface of the air pipe and water pipe without dead angles. The airflow itself drives the relative movement between the movable disc and the fixed disc, automatically generating intermittent pulse airflow, which enhances the peeling ability of the adhering substances, avoids the formation of an air film by continuous airflow, and improves the drying efficiency. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the present invention.

[0027] Figure 3 This is a cross-sectional view of the pulse generating mechanism in this invention.

[0028] Figure 4 This is a schematic diagram of the structure of the first winch and the second winch in this invention;

[0029] Figure 5 This is a cross-sectional view of the structure at the pipe outlet in this invention;

[0030] Figure 6 This is the present invention. Figure 2 Enlarged structural diagram at point A;

[0031] Figure 7 This is the present invention. Figure 4 Enlarged structural diagram at point B;

[0032] Figure 8 This is the present invention. Figure 5 Enlarged structural diagram at point C;

[0033] Figure 9 This is the present invention. Figure 8 Enlarged structural diagram at point D;

[0034] Figure 10 This is a schematic diagram of the structure of the first housing in this invention;

[0035] Figure 11 This is the present invention. Figure 5 Enlarged structural diagram at point E;

[0036] Figure 12 This is the present invention. Figure 3 Enlarged structural diagram at point F.

[0037] In the diagram: 1. Floating boat; 2. First winch; 3. Water pipe; 4. Top cover; 5. First pipe sleeve; 6. First fixed pulley; 7. Squeezing sleeve; 8. Water inlet cylinder; 9. Filter plate; 10. Valve cover; 11. Valve shaft; 12. First discharge pipe; 13. First check valve; 14. Second winch; 15. Sliding sleeve; 16. Air pipe; 17. Second pipe sleeve; 18. Second fixed pulley; 19. First solenoid valve; 20. Detection box; 21. Sensor module; 22. Slider; 23. Electric cylinder; 24. Waterproof plate; 25. U-shaped groove; 26. Sealing ring; 27. Cleaning tank; 28. Cleaning pipe; 29. Second solenoid valve; 30. First housing; 31. First diversion groove; 32. First diversion fin; 33. Cleaning port; 34. First impeller blade; 35. Electric heating tube; 36. Air pump; 37. First drying tube; 38. Pulse generating mechanism; 381. Pulse generating tube; 382. Fan impeller; 383. Drive shaft; 384. Movable disc; 385. First pulse hole; 386. Fixed disc; 387. Second pulse hole; 39. Second drying tube; 40. Second housing; 41. Second diversion fin; 42. Second impeller blade; 43. Third solenoid valve; 44. Drain port. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] like Figures 1 to 12 As shown, a floating water pollution detection device includes a floating vessel 1; the floating vessel 1 has a discharge port 44, and a first winding machine and a second winding machine are respectively connected to both sides of the discharge port 44 on the floating vessel 1. A compression sleeve 7 is clamped on the rope guide of the first winding machine, and a water pipe 3 is slidably connected inside the compression sleeve 7. One end of the water pipe 3 is wound and connected to the first winch 2, and the other end of the water pipe 3 extends through the discharge port 44 to the bottom of the floating vessel 1 and is connected to a detection box 20 via a bracket. A sensor module 21 is installed on the top of the detection box 20. A water inlet cylinder 8 is clamped at the bottom end of the water pipe 3, and a filter plate 9 is clamped at the bottom of the water inlet cylinder 8. A valve cover 10 is provided on the inner bottom of the water inlet cylinder 8, and the valve cover 10 is hinged to the inner wall of the water inlet cylinder 8 via a valve shaft 11. A first discharge pipe 12 is connected to the outer wall of the water pipe 3 near the valve cover 10; a first one-way valve 13 is installed on the discharge pipe 3.

[0040] The second winch has a sliding sleeve 15 attached to its rope guide. An air pipe 16 is slidably connected inside the sliding sleeve 15. One end of the air pipe 16 is wound around the first winch, and the other end of the air pipe 16 is connected to the outer wall of the water pipe 3 near the valve cover 10. A first solenoid valve 19 is installed on the air pipe 16 near the valve cover 10.

[0041] Specifically, this implementation involves: remotely controlling the floating vessel 1 to move to the designated detection point, then simultaneously activating the first winch 2 and the second winch 14. The first winch 2 releases the water pipe 3 it is holding. Due to the counterweight effect of the detection box 20, during the joint release of the water pipe 3 and the air pipe 16, the detection box 20 drives the sensing module 21 to gradually sink. During this process, water pressure acts on the valve cover 10, causing it to tilt upwards around the valve shaft 11. Water then enters the water supply system after being filtered by the filter plate 9. Pipe 3: After the detection box 20 sinks to the predetermined depth, the first winch 2 and the second winch are controlled to wind the water pipe 3 and the air pipe 16 respectively, causing the bottom end of the water pipe 3 to rise a short distance. At this time, the valve cover 10 flips downward around the valve shaft 11 under the action of water pressure change and gravity, achieving reliable sealing. Then, the air pump 36 is started and the first solenoid valve 19 is opened. The high-pressure gas output by the air pump 36 enters the water pipe 3 through the air pipe 16, pressurizing the inside of the water pipe 3. By increasing the internal pressure of the water pipe 3, the flow rate increases. The surface hardness of the water pipe 3 is increased to enhance its resistance to water flow impact, preventing it from tilting under the action of water flow and ensuring the accuracy of the descent depth of the sensing module 21. This, in turn, improves the accuracy of water pollution detection in each water layer. By synchronously controlling the first winch 2 and the second winch 14, the release and winding of the water pipe 3 and the air pipe 16 are precisely adjusted, making the descent and retrieval process of the detection box 20 smooth and controllable. This prevents the sensing module 21 from shifting due to water flow interference. High-pressure gas is used to pressurize the inside of the water pipe 3, increasing its surface hardness and effectively resisting water flow impact. This prevents the water pipe 3 from tilting and ensures that the sensing module 21 works stably at the predetermined depth. The automatic opening and closing mechanism of the valve cover 10 under water pressure, combined with the slight upward design at the bottom of the water pipe 3, ensures that the detection box 20 accurately stops at the target depth, reducing depth error. The stable descent depth and anti-interference ability enable the sensing module 21 to accurately acquire water quality data of each water layer, thereby improving the accuracy of the analysis of water pollution level and distribution.

[0042] Specifically, a slide plate 22 is slidably connected to the inner wall of the detection box 20. A groove 25 is provided on the slide plate 22. A sealing ring 26 is fitted on the slide plate 22 corresponding to the groove 25. An electric cylinder 23 is installed on the inner wall of the detection box 20. A partition plate is snapped onto the inner wall of the detection box 20 and slidably connected to the telescopic end of the electric cylinder 23. The telescopic end of the electric cylinder 23 is connected to the slide plate 22.

[0043] Specifically, this implementation involves the following steps: After the detection box 20 is lowered to the target detection site, the electric cylinder 23 is controlled to retract, causing the sliding plate 22 to slide inside the detection box 20 until the detection head of the sensing module 21 is fully exposed to the water sample entering the detection box 20. After the detection box 20 completes the current water body detection, the electric cylinder 23 is controlled to extend, pushing the sliding plate 22 to slide in the opposite direction, thereby discharging the water sample from the detection box 20. After a preset time interval, the electric cylinder 23 is controlled to operate again to perform a second detection at the same detection site, thereby monitoring the change in detection data at that site per unit time in the water body. The electric cylinder 23 drives the sliding plate 22 to slide, which can accurately expose the detection head of the sensing module 21 during detection, ensuring full contact with the water sample. It can be effectively retracted when not in detection mode, avoiding long-term immersion or damage to the detection head. The extension and retraction of the electric cylinder 23 is precisely controlled and responds quickly, which can reliably complete the introduction and discharge of water samples, providing a stable operating basis for repeated detection at the same detection site. By setting a time interval for secondary detection, water quality data of the same detection site at different time points can be effectively obtained, which is convenient for analyzing the trend of pollutant concentration changes per unit time and improving the dynamic assessment capability of water quality.

[0044] Specifically, a cleaning groove 27 is provided on the inner top wall of the detection box 20 corresponding to the sensing module 21. A cleaning tube 28 is connected to the outer wall of the detection box 20 along the tangential direction of the cleaning groove 27. The other end of the cleaning tube 28 is connected to the outer wall of the air pipe 16, and the port of the cleaning tube 28 is located above the first solenoid valve 19. A second solenoid valve 29 is installed on the cleaning tube 28.

[0045] The cleaning tank 27 is embedded with a first housing 30. The outer wall of the first housing 30 is provided with a first diversion groove 31. The inner wall of the first diversion groove 31 is fitted with a plurality of first diversion fins 32 arranged in a ring array. The ends of the first diversion fins 32 are provided with downward inclined cleaning ports 33. The inner wall of the first diversion groove 31 is connected with a plurality of first impeller blades 34 corresponding to the plurality of first diversion fins 32. The inner wall of the first diversion groove 31 is equipped with a plurality of electric heating tubes 35.

[0046] The bottom of the detection box 20 is connected to a second discharge pipe 45, and a second one-way valve 46 is installed on the second discharge pipe 45.

[0047] Specifically, this implementation involves closing the first solenoid valve 19 and opening the second solenoid valve 29, controlling the air pump 36 to continue operating. This allows the gas in the air pipe 16 to be introduced into the cleaning tank 27 via the cleaning pipe 28, and quickly converges into the first diversion tank 31. Finally, the gas is sprayed onto the sensing module 21 through multiple cleaning ports 33. The airflow towards the sensing module 21 follows a downward-sloping path, quickly removing residual water stains from the surface of the sensing module 21. Simultaneously, the electric heating tube 35 heats the gas entering the first diversion tank 31, using the heated airflow to dry the surface of the sensing module 21. Through the coordinated control of closing the first solenoid valve 19 and opening the second solenoid valve 29, a seamless switch from conventional detection to cleaning mode is achieved, improving the system's integration and dynamism. To improve efficiency, multiple cleaning ports 33 are designed in conjunction with a downward-sloping airflow path, allowing the gas to fully cover the surface of the sensor module 21, effectively removing residual water stains and preventing water stains from interfering with subsequent detection. The electric heating tube 35 heats the cleaning gas, giving the hot airflow both blowing and evaporation functions, which can quickly eliminate moisture on the surface of the sensor module 21, avoiding the problem of decreased accuracy or corrosion of the sensor module 21 due to moisture. Through timely cleaning and drying, the adhesion and residue of water stains and contaminants on the surface of the sensor module 21 are reduced, reducing the risk of damage to the sensor module 21 when working in a humid environment for a long time, improving the reliability of the system and the maintenance cycle. As the pressure inside the detection box 20 increases, the second one-way valve 46 opens, and the gas carrying water stains is discharged through the second discharge pipe 45.

[0048] The cleaning pipe 28 is arranged radially along the first diversion groove 31, so that after the gas enters the first diversion groove 31 through the cleaning pipe 28, it directly acts on multiple first impeller blades 34. The impact force of the airflow drives the multiple first impeller blades 34 to rotate, thereby driving the first housing 30 to perform circumferential motion within the cleaning groove 27. During this motion, multiple cleaning ports 33 rotate accordingly, achieving all-round blowing and evaporation treatment of the surface of the sensing module 21. The radial flow of the gas upon entry drives the impeller blades to rotate, automatically driving the cleaning ports 33 to rotate without the need for an additional motor or transmission mechanism, thus improving system integration and energy efficiency. Through the circumferential motion of the cleaning ports 33, the airflow can act on the surface of the sensing module 21 from multiple angles and in all directions, avoiding dead corners that may exist in fixed-direction cleaning, significantly improving the comprehensiveness of water stain blowing and evaporation treatment. The rotating airflow, combined with the heating function of the electric heating tube 35, allows hot air to dynamically cover all parts of the sensing module 21, accelerating the removal and drying speed of surface moisture and improving cleaning response efficiency.

[0049] Specifically, a top cover 4 is snapped into the drain outlet 44, and a first sleeve 5 and a second sleeve 17 are snapped into the top of the top cover 4 respectively. The water pipe 3 is slidably connected to the first sleeve 5, and the air pipe 16 is slidably connected to the second sleeve 17.

[0050] The floating vessel 1 is connected to a first fixed pulley 6 and a second fixed pulley 18 respectively. The water pipe 3 slides on the first fixed pulley 6 for transmission and guidance. The air pipe 16 slides on the second fixed pulley 18 for transmission and guidance.

[0051] An air pump 36 is installed on the floating vessel 1. The end of the air pipe 16 is connected to the output end of the air pump 36. The output end of the air pump 36 is also connected to a first drying pipe 37. The other end of the first drying pipe 37 is connected to a pulse generating mechanism 38. The other end of the pulse generating mechanism 38 is connected to a second drying pipe 39. The other end of the second drying pipe 39 is connected to a drain outlet 44 and is arranged tangentially along the inner wall of the drain outlet 44. A third solenoid valve 43 is installed on the second drying pipe 39.

[0052] A second housing 40 is rotatably connected inside the outlet 44. Multiple second diversion fins 41 arranged in a ring array are connected to the inner annular surface of the second housing 40. Multiple second impeller blades 42 are connected to the inner wall of the second housing 40.

[0053] Specifically, this implementation involves the following steps: After water pollution detection is completed, the first winch 2 and the second winch 14 are controlled to wind up the water pipe 3 and the air pipe 16, respectively. During the winding process, the compression sleeve 7 compresses the water pipe 3. As the internal pressure of the water pipe 3 further increases, the first one-way valve 13 opens, and the residual water in the water pipe 3 is discharged through the first discharge pipe 12. At the same time, the system closes the second solenoid valve 29, opens the third solenoid valve 43, and controls the air pump 36 to continue working. The gas generated by the air pump 36 flows sequentially through the first drying pipe 37 and the second drying pipe 39, and then flows radially into the discharge port 44, enters the second housing 40, and acts on multiple second impeller blades 42. The multiple second impeller blades 42 drive multiple second diversion fins 41 to rotate around the water pipe 3 and the air pipe 16 through the second housing 40. The ejected airflow can effectively remove the residue on the surface of the water pipe 3 and the air pipe 16. During the winding process, the residual water in the water pipe 3 is automatically discharged through the linkage of the extrusion sleeve 7 and the first one-way valve 13, avoiding the additional burden or corrosion of the water pipe 3 caused by water accumulation, thus improving winding efficiency and system safety. The humidity of the gas is greatly reduced after being treated by two-stage drying pipes, and then enters the rotating structure through radial diversion, ensuring that the blowing airflow is dry and stable, which is conducive to removing wet stains or contaminants attached to the pipe surface. Relying on the airflow to drive the second impeller 42 and the second housing 40 to rotate, the second diversion fin 41 is driven to make a circular motion around the water pipe 3 and the air pipe 16, so that the blowing airflow covers the outer surface of the pipe without dead angles, significantly improving the removal effect of the attached objects. Through timely drainage and active cleaning during the winding process, the long-term adhesion of residues and moisture on the surface of the water pipe 3 and the air pipe 16 is reduced, the risk of pipe aging, corrosion or blockage is reduced, and the long-term reliability of the system is improved.

[0054] Specifically, the pulse generating mechanism 38 includes a pulse generating tube 381, with both ends of the pulse generating tube 381 connected to the ends of the first drying tube 37 and the second drying tube 39, respectively. A fan impeller 382 is rotatably connected inside the pulse generating tube 381, and a drive shaft 383 is connected to the shaft center of the fan impeller 382. The other end of the drive shaft 383 is connected to a movable disk 384. A plurality of first pulse holes 385 arranged in a ring array are opened on the movable disk 384. A fixed disk 386 is snapped into the pulse generating tube 381 and fitted and connected to the movable disk 384. A plurality of second pulse holes 387 are opened on the fixed disk 386 corresponding to the plurality of first pulse holes 385.

[0055] In this specific embodiment, as gas flows from the first drying pipe 37 through the pulse generating pipe 381 to the second drying pipe 39, the airflow drives the impeller 382 to rotate. The impeller 382 drives the movable disk 384 to rotate via the transmission shaft 383, causing the multiple first pulse holes 385 on the movable disk 384 to overlap with the multiple second pulse holes 387 on the fixed disk 386. When the first pulse holes 385 and the second pulse holes 387 overlap, gas can pass through. When they are misaligned, the gas passage is blocked. This cycle repeats, achieving continuous and intermittent gas flow to the second housing 40. The internal pulsed air supply uses the kinetic energy of the airflow to drive the impeller 382 to rotate, and drives the pulse hole interlacing mechanism through the transmission shaft 383 to automatically generate periodically on and off pulsed airflow. The pulsed air supply makes the ejected airflow have intermittent impact characteristics. Compared with continuous airflow, it can produce a stronger peeling and shaking effect on the surface of water pipe 3 and air pipe 16, improving cleaning efficiency. The intermittent airflow helps to remove moisture during the alternation of impact and pause, avoiding the air film that may be formed by continuous airflow that hinders evaporation, thereby accelerating the drying speed and cleaning effect of the surface and surrounding area of ​​air pipe 16 and water pipe 3.

[0056] During operation, the floating vessel 1 is remotely controlled to move to the designated detection point. Then, the first winch 2 and the second winch 14 are activated simultaneously. The first winch 2 releases the water pipe 3 it is holding. Due to the counterweight effect of the detection box 20, during the joint release of the water pipe 3 and the air pipe 16, the detection box 20 drives the sensing module 21 to gradually sink. During this process, water pressure acts on the valve cover 10, causing it to tilt upwards around the valve shaft 11. Water enters the water pipe 3 after being filtered by the filter plate 9. After the detection box 20 sinks to the predetermined depth, the first winch 2 and the second winch 14 are controlled to wind the water pipe 3 and the air pipe 16 respectively, causing the bottom end of the water pipe 3 to rise a short distance. At this time, the valve cover 10 flips downward around the valve shaft 11 under the action of water pressure change and gravity, achieving reliable sealing. Then, the air pump 36 is started and the first solenoid valve 19 is opened. The high-pressure gas output by the air pump 36 enters the water pipe 3 through the air pipe 16, pressurizing the inside of the water pipe 3. By increasing the internal pressure of the water pipe 3, the effect is enhanced. The surface hardness of water pipe 3 is increased to enhance its resistance to water flow impact, preventing it from tilting under the action of water flow and ensuring the accuracy of the lowering depth of sensor module 21. This, in turn, improves the accuracy of water pollution detection in each water layer. The first winch 2 and the second winch 14 are controlled synchronously to precisely adjust the release and winding of water pipe 3 and air pipe 16, making the lowering and retrieval process of detection box 20 smooth and controllable, avoiding the displacement of sensor module 21 due to water flow interference. High-pressure gas is used to pressurize the inside of water pipe 3, increasing the surface hardness of water pipe 3, effectively resisting water flow impact, preventing water pipe 3 from tilting, and ensuring that sensor module 21 works stably at the predetermined depth. The automatic opening and sealing mechanism of valve cover 10 under water pressure, combined with the small upward design at the bottom of water pipe 3, ensures that detection box 20 accurately stops at the target depth, reducing depth error. The stable lowering depth and anti-interference ability enable sensor module 21 to accurately obtain water quality data of each water layer, thereby improving the accuracy of analysis of water pollution degree and distribution.

[0057] After the detection box 20 is lowered to the target detection site, the control cylinder 23 retracts, causing the sliding plate 22 to slide inside the detection box 20 until the detection head of the sensing module 21 is fully exposed to the water sample entering the detection box 20. Once the detection box 20 completes the current water sample detection, the control cylinder 23 extends, pushing the sliding plate 22 in the opposite direction to discharge the water sample from the detection box 20. After a preset time interval, the control cylinder 23 operates again to perform a second detection at the same site, monitoring the trend of data changes at that site per unit time in the water sample. The electric cylinder 23 drives the sliding plate 22 to slide, which can accurately expose the detection head of the sensing module 21 during detection, ensuring full contact with the water sample. It can be effectively retracted when not in detection state, avoiding long-term immersion or damage to the detection head. The extension and retraction of the electric cylinder 23 is precisely controlled and responds quickly, which can reliably complete the introduction and discharge of water samples, providing a stable operating basis for repeated detection at the same detection site. By setting a time interval for secondary detection, water quality data of the same detection site at different time points can be effectively obtained, which is convenient for analyzing the trend of pollutant concentration changes per unit time and improving the dynamic assessment capability of water quality.

[0058] The system closes the first solenoid valve 19 and opens the second solenoid valve 29, controlling the air pump 36 to continue operating. This allows the gas in the air pipe 16 to be introduced into the cleaning tank 27 via the cleaning pipe 28, and quickly converges into the first diversion tank 31. Finally, the gas is sprayed onto the sensor module 21 through multiple cleaning ports 33. The airflow towards the sensor module 21 follows a downward angled path, quickly removing residual water stains from its surface. Simultaneously, the electric heating element 35 heats the gas entering the first diversion tank 31, using the heated airflow to dry the surface of the sensor module 21. Through the coordinated control of the first solenoid valve 19 closing and the second solenoid valve 29 opening, a seamless switch between normal detection and cleaning modes is achieved, improving the system's integration and operational efficiency. Multiple cleaning ports 33 are designed in conjunction with an inclined downward airflow path, allowing the gas to fully cover the surface of the sensor module 21, effectively removing residual water stains and preventing water stains from interfering with subsequent detection. The electric heating tube 35 heats the cleaning gas, so that the hot airflow has the dual function of blowing and evaporation, which can quickly eliminate moisture on the surface of the sensor module 21 and avoid the problem of decreased accuracy or corrosion of the sensor module 21 due to moisture. Through timely cleaning and drying, the adhesion and residue of water stains and contaminants on the surface of the sensor module 21 are reduced, reducing the risk of damage to the sensor module 21 when working in a humid environment for a long time, improving the reliability of the system and the maintenance cycle. As the pressure inside the detection box 20 increases, the second one-way valve 46 opens, and the gas carrying water stains is discharged through the second discharge pipe 45.

[0059] The cleaning pipe 28 is arranged radially along the first diversion groove 31, so that after the gas enters the first diversion groove 31 through the cleaning pipe 28, it directly acts on multiple first impeller blades 34. The impact force of the airflow drives the multiple first impeller blades 34 to rotate, thereby driving the first housing 30 to perform circumferential motion within the cleaning groove 27. During this motion, multiple cleaning ports 33 rotate accordingly, achieving all-round blowing and evaporation treatment of the surface of the sensing module 21. The radial flow of the gas entering drives the first impeller blades 34 to rotate, which can automatically drive the cleaning ports 33 to rotate without the need for an additional motor or transmission mechanism, improving system integration and energy efficiency. Through the circumferential motion of the cleaning ports 33, the airflow can act on the surface of the sensing module 21 from multiple angles and in all directions, avoiding dead corners that may exist in fixed-direction cleaning, significantly improving the comprehensiveness of water stain blowing and evaporation treatment. The rotating airflow, combined with the heating function of the electric heating tube 35, enables the hot air to dynamically cover all parts of the sensing module 21, accelerating the removal and drying speed of surface moisture and improving cleaning response efficiency.

[0060] After completing the water pollution detection, the first winch 2 and the second winch 14 are controlled to wind up the water pipe 3 and the air pipe 16 respectively. During the winding process, the extrusion sleeve 7 extrudes the water pipe 3. As the internal pressure of the water pipe 3 further increases, the first one-way valve 13 opens, and the residual water in the water pipe 3 is discharged through the first discharge pipe 12. At the same time, the system closes the second solenoid valve 29, opens the third solenoid valve 43, and controls the air pump 36 to continue working. The gas generated by the air pump 36 flows sequentially through the first drying pipe 37 and the second drying pipe 39, and then flows radially into the discharge port 44, enters the second housing 40, and acts on multiple second impeller blades 42. The multiple second impeller blades 42 drive multiple second diversion fins 41 to rotate around the water pipe 3 and the air pipe 16 through the second housing 40. The sprayed airflow can effectively sweep away the adhering substances on the surface of the water pipe 3 and the air pipe 16. During the winding process, the extrusion sleeve 7 extrudes the water pipe 3. The linkage between the pressure sleeve 7 and the first one-way valve 13 automatically drains the residual water in the water pipe 3, avoiding the additional burden or corrosion of the water pipe 3 caused by water accumulation, improving the winding efficiency and system safety. After the gas is treated by the first drying pipe 37 and the second drying pipe 39, the humidity is greatly reduced. Then, it enters the rotating structure through radial diversion to ensure that the blowing airflow is dry and stable, which is conducive to removing wet stains or contaminants attached to the pipe surface. Relying on the airflow to drive the second impeller 42 and the second housing 40 to rotate, the second diversion fin 41 is driven to make a circular motion around the water pipe 3 and the air pipe 16, so that the blowing airflow covers the outer surface of the water pipe 3 and the air pipe 16 without dead angles, significantly improving the removal effect of the attached substances. Through timely drainage and active cleaning during the winding process, the long-term adhesion of residues and moisture on the surface of the water pipe 3 and the air pipe 16 is reduced, reducing the risk of pipe aging, corrosion or blockage, and improving the long-term reliability of the system.

[0061] As the gas flows from the first drying pipe 37 through the pulse generator pipe 381 to the second drying pipe 39, the airflow drives the impeller 382 to rotate. The impeller 382 drives the movable disk 384 to rotate via the transmission shaft 383, causing the multiple first pulse holes 385 on the movable disk 384 to overlap with the multiple second pulse holes 387 on the fixed disk 386. When the first pulse holes 385 and the second pulse holes 387 overlap, the gas can pass through; when they are misaligned, the gas passage is blocked. This cycle repeats, achieving a continuous yet intermittent pulsed gas supply to the second housing 40, utilizing the gas... The airflow itself drives the impeller 382 to rotate, and through the transmission shaft 383, it drives the movable disk 384 and the fixed disk 386 to move relative to each other, automatically generating periodic pulse airflow. The pulsed air supply makes the ejected airflow have intermittent impact characteristics. Compared with continuous airflow, it can produce a stronger peeling and shaking effect on the surface of water pipe 3 and air pipe 16, improving cleaning efficiency. The intermittent airflow helps to remove moisture during the alternation of impact and pause, avoiding the air film that may be formed by continuous airflow that hinders evaporation, thereby accelerating the drying speed and cleaning effect of the surface and surrounding area of ​​air pipe 16 and water pipe 3.

[0062] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A floating water pollution detection device, comprising a floating platform; characterized in that: The floating vessel has a discharge port. A first winding machine and a second winding machine are connected to both sides of the discharge port on the floating vessel. A compression sleeve is clamped onto the rope guide of the first winding machine. A water pipe is slidably connected inside the compression sleeve. One end of the water pipe is wound and connected to the first winch. The other end of the water pipe extends through the discharge port to the bottom of the floating vessel and is connected to a detection box via a bracket. A sensor module is installed on the top of the detection box. A water inlet cylinder is clamped at the bottom of the water pipe. A filter plate is clamped at the bottom of the water inlet cylinder. A valve cover is provided on the inner bottom of the water inlet cylinder. The valve cover is hinged to the inner wall of the water inlet cylinder via a valve shaft. A first discharge pipe is connected to the outer wall of the water pipe near the valve cover. A first one-way valve is installed on the discharge pipe. The second winch has a sliding sleeve attached to its rope guide, and an air pipe is slidably connected inside the sliding sleeve. One end of the air pipe is wound around the first winch, and the other end of the air pipe is connected to the outer wall of the water pipe near the valve cover. A first solenoid valve is installed on the air pipe near the valve cover.

2. The floating water pollution detection device according to claim 1, characterized in that: The drain pipe opening is fitted with a top cover, and the top of the top cover is fitted with a first sleeve and a second sleeve respectively. The water pipe is slidably connected inside the first sleeve, and the air pipe is slidably connected inside the second sleeve. The floating vessel is equipped with a first fixed pulley and a second fixed pulley. The water pipe slides on the first fixed pulley for water pipe drive and guidance, and the air pipe slides on the second fixed pulley for air pipe drive and guidance.

3. The floating water pollution detection device according to claim 2, characterized in that: The inner wall of the detection box is slidably connected to a slide plate, the slide plate has a U-shaped groove, and a sealing ring is fitted on the slide plate corresponding to the U-shaped groove. An electric cylinder is installed on the inner wall of the detection box, and a partition plate is snapped onto the inner wall of the detection box and slidably connected to the telescopic end of the electric cylinder. The telescopic end of the electric cylinder is connected to the slide plate.

4. The floating water pollution detection device according to claim 3, characterized in that: The top wall of the detection box is provided with a cleaning groove corresponding to the sensing module. The outer wall of the detection box is connected to a cleaning tube along the tangential direction of the cleaning groove. The other end of the cleaning tube is connected to the outer wall of the trachea, and the port of the cleaning tube is located above the first solenoid valve. A second solenoid valve is installed on the cleaning tube. The cleaning tank is embedded with a first housing. The outer wall of the first housing is provided with a first diversion groove. The inner wall of the first diversion groove is fitted with a plurality of first diversion fins arranged in a ring array. The ends of the first diversion fins are provided with downward inclined cleaning ports.

5. A floating water pollution detection device according to claim 4, characterized in that: The inner wall of the first diversion channel is connected to multiple first impeller blades corresponding to multiple first diversion fins, and multiple electric heating tubes are installed on the inner wall of the first diversion channel. The bottom of the detection box is connected to a second discharge pipe, and a second one-way valve is installed on the second discharge pipe.

6. A floating water pollution detection device according to claim 5, characterized in that: An air pump is installed on the floating vessel. The end of the air pipe is connected to the output end of the air pump. The output end of the air pump is also connected to a first drying pipe. The other end of the first drying pipe is connected to a pulse generating mechanism. The other end of the pulse generating mechanism is connected to a second drying pipe. The other end of the second drying pipe is connected to a drain outlet and is arranged tangentially along the inner wall of the drain outlet. A third solenoid valve is installed on the second drying pipe.

7. A floating water pollution detection device according to claim 6, characterized in that: A second housing is rotatably connected inside the outlet pipe. Multiple second diversion fins arranged in a ring array are connected to the inner annular surface of the second housing. Multiple second impeller blades are connected to the inner wall of the second housing.

8. A floating water pollution detection device according to claim 7, characterized in that: The pulse generating mechanism includes a pulse generating tube, the two ends of which are respectively connected to the ends of a first drying tube and a second drying tube. A fan impeller is rotatably connected inside the pulse generating tube, and a drive shaft is connected to the shaft center of the fan impeller. The other end of the drive shaft is connected to a movable disk. Multiple first pulse holes are formed in a circular array on the movable disk. A fixed disk is snapped into the pulse generating tube and fitted to the movable disk. Multiple second pulse holes are formed on the fixed disk corresponding to the multiple first pulse holes.

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