A water body active intermittent sand removal and discharge system device

Abstract

This invention discloses an active intermittent sand removal and discharge system for water bodies, belonging to the technical field of sand removal and discharge devices. It includes a filtration mechanism for filtering water in a sedimentation tank, preventing the entry of sediment, leaves, and other materials, allowing only water to pass through; a sand removal mechanism for sweeping sand adhering to the water-facing surfaces of the front and two side filter screens; and a sand discharge mechanism for sieving the sand, leaves, and other materials swept by the sand removal mechanism into a drainage trough mechanism, where they are discharged by water force. When the sand removal mechanism malfunctions and cannot operate, a leaf-type electric gate filter screen can be opened to allow water flow. The advantages of this device are: thorough removal of sediment and various debris from the water source; the intermittent operation mode of the sand removal and discharge device allows adjustment of the sand removal, discharge, and intermittent duration according to the sand content; and a digital and video real-time monitoring and alarm system to predict equipment or water level anomalies in advance, ensuring safe and reliable system operation.

Description

Technical Field

[0001] This invention relates to the technical field of water body sand removal and discharge devices, specifically to an active intermittent sand removal and discharge system for water bodies. Background Technology

[0002] High-efficiency water-saving irrigation technologies such as drip irrigation and sprinkler irrigation have been widely promoted and applied throughout the country. They have not only significantly saved water resources but also significantly increased crop yields, playing a huge role in promoting the modernization of agricultural production and the leapfrog development of the agricultural economy. After more than 30 years of continuous improvement, water-saving irrigation technology has formed a relatively complete system configuration structure, which has played a huge supporting role in ensuring the stable and efficient operation of water-saving irrigation.

[0003] I. Current Basic Components of Water-Saving Irrigation Systems

[0004] (1) Water supply system: sedimentation tank, water pump and field pipeline;

[0005] (2) Filtration system: Post-pump filtration equipment, such as mesh automatic backwash filter, disc filter, sand filter; pre-pump filtration equipment, such as screen filter.

[0006] (3) Fertilization system: such as open-type fertilizer tanks, fertilizer applicators, etc.;

[0007] II. Current Status of the Filtration System

[0008] Mesh backwash filter (tank): When the filter screen inside the tank becomes clogged to a certain extent, the pressure difference between the inside and outside of the screen reaches a certain value, and the filtration system automatically starts the backwashing process. The backwashing frequency varies depending on the water quality; it is higher when the sand content is high and relatively lower when the sand content is low.

[0009] Disc filters: The main principle is to filter mud and sand by using the millimeter- or micrometer-level gaps between the discs, and the filtration process is similar to that of mesh backwash filters.

[0010] Sand and gravel filter (tank): The tank is filled with fine-grained quartz sand (particle size 5-10mm). When water flows through, it traps the sand and gravel inside the tank, thus filtering out the sediment. The sand and gravel filter needs to be flushed periodically to remove the sediment from the tank.

[0011] Pre-pump mesh filter: This filter is made into a circular cylindrical filter screen. It filters mud and sand in the sedimentation tank before the pump. Its function is only to prevent mud and sand from being sucked into the water pump. It does not have a backwashing function, nor can it discharge mud and sand outside the system.

[0012] The above describes the traditional setup of a filtration system used for water-saving irrigation for many years.

[0013] III. Main Problems Existing in Current Filtration Systems

[0014] (1) Wasting water and electricity resources and increasing ineffective production costs.

[0015] Currently, the filtration equipment is installed on the main field water supply pipeline after the pump, forming an upstream-downstream series connection. Therefore, the water flow must constantly pass through the filtration equipment, inevitably causing constant pressure loss (head loss) in the water supply pipeline system. Based on the actual design of numerous water-saving projects, the entire field water supply system requires a head pressure of 40m. The filtration equipment alone results in a head pressure loss of approximately 10m, which accounts for about 25% of the total head pressure of the entire water supply system. This energy consumption is considerable.

[0016] Furthermore, when the filtration equipment undergoes backwashing, the system's irrigation water supply must be stopped. All pumped water must be used for backwashing, and the backwash water is then discharged back into the sedimentation tank upstream of the pump. This not only wastes water and electricity but also further increases the sediment content in the sedimentation tank. Frequent backwashing causes irrigation to be intermittently used, leading to increased ineffective operating costs and significant waste and energy consumption. This is a problem that current traditional filtration systems, such as mesh filters, disc filters, and sand filters, cannot solve or overcome on their own.

[0017] (2) Serious waste of agricultural fertilizers

[0018] The current operation of filters also presents the problem of fertilizer waste. Currently, agricultural water-saving irrigation and fertilization are basically integrated water and fertilizer systems, with fertilizer flowing with the water, ensuring even distribution of water and fertilizer to the fields and guaranteeing stable and high crop yields. However, frequent backwashing washes away fertilizer and water, resulting in fertilizer waste, which has drawn considerable criticism from agricultural operators. This is another significant reason why farmers are reluctant to use filters.

[0019] (3) The problem of sediment discharge was not fundamentally and thoroughly solved at the source.

[0020] The current filtration system treats sediment after the water pump, treating the water after the pump rather than the water in the sedimentation tank before the pump. This is a passive and stress-based water treatment mode. Moreover, water supply, sediment removal, and fertilization share a single field water supply pipeline, causing mutual interference. This is the fundamental problem with this mode.

[0021] The current pre-pump screen filter is a model that has been promoted and used for the past ten years or so. It is a water filtration device made of a cylindrical filter screen. Although water treatment is carried out in the sedimentation tank before the pump, it can only block silt from entering the filter screen. It does not have a sand removal function and cannot completely solve the source of silt from a hydraulic point of view. As a result, silt and debris accumulate in the sedimentation tank over the course of a year, and the water in the tank eventually becomes a muddy paste. A large amount of weeds, leaves, flocculent matter, and residual film float and float on the surface and in the middle and lower layers of the sedimentation tank, making silt filtration very difficult. As a last resort, it is necessary to adopt an operation mode that combines it with the traditional post-pump filter, which increases the number of equipment and investment. Otherwise, the operation is full of difficulties and seriously affects agricultural production and the agricultural economy.

[0022] Although the above-mentioned filtration systems have been in operation for decades, their limitations due to the inherent structure and functionality of the equipment have revealed numerous prominent problems during operation, drawing significant complaints from agricultural operators. They frequently stop using or shut down the filtration systems and directly pump water for irrigation, which in turn leads to clogging of drip irrigation tapes in the fields, severely impacting crop growth.

[0023] In summary, the current operation mode of the filtration system results in the waste of water resources, energy, and fertilizer. Moreover, the equipment investment is relatively large, specifically manifested in the large amount of flushing water, the large amount of wasted electricity, and the large amount of fertilizer loss. More importantly, it affects agricultural irrigation water supply, directly impacting stable and high agricultural yields and causing serious damage to the agricultural economy. Summary of the Invention

[0024] Solution: The problems mentioned above all stem from the self-limiting nature of the structure of various filtration devices, and this problem cannot be avoided. They are no longer suitable for maximizing the water-saving irrigation needs of large fields in areas with high sediment content. If this situation is not changed, it will continue.

[0025] To address the aforementioned problems, a solution is proposed: separate the water supply, sediment flushing, and fertilization systems. Each system can operate relatively independently with minimal interference. The core of this solution lies in separating the sediment flushing and fertilization systems, eliminating irrigation disruptions caused by sediment flushing and the waste of agricultural fertilizer. The sediment flushing process is proactively addressed upstream of the pump in a sedimentation tank—a source-level solution that aligns with the fundamental requirements of water conservancy for source sediment flushing. Considering the varying sediment content in the water body during different seasons, an energy-saving design is implemented, incorporating proactive intermittent sediment flushing to reduce energy consumption. Furthermore, in addition to addressing sediment issues, the system must also remove the large amounts of leaves, weeds, fibrous material, and agricultural film residue collected in the sedimentation tank from surrounding farmland—problems that traditional filtration devices cannot handle.

[0026] An active intermittent sand removal and flushing system for water bodies is a product designed to address the aforementioned issues, and it basically conforms to the principles of mechanics and hydraulics. It also incorporates data acquisition equipment for monitoring and video recording, and the entire system is designed for electrified and automated operation, laying the foundation for the modernization of agricultural irrigation.

[0027] The purpose of this invention is to provide an active intermittent sand cleaning and discharge system for water bodies, so as to avoid the many problems faced by the filtration system equipment in the existing agricultural drip irrigation system, which cannot be solved by itself, and fundamentally solve the problem that the sand cleaning and discharge can operate simultaneously and independently when the irrigation system is supplying water normally.

[0028] To achieve the above objectives, the present invention provides the following technical solution: an active intermittent sand removal and discharge system for water bodies. The system is installed in a sedimentation tank and its main function is to treat and discharge silt, leaves, weeds, flocculent matter, and agricultural film residue in the sedimentation tank before the pump.

[0029] The sedimentation tank, pump house, and water pumps are existing components of the entire irrigation system. After the completion of this system, it will operate together with the sedimentation tank, pump house, and water pumps to complete the irrigation task. Therefore, this device is interconnected with the sedimentation tank, pump house, and equipment within the pump house. The research and development of this system does not include the sedimentation tank, pump house, and equipment within the pump house.

[0030] The system components of this invention are as follows:

[0031] The sediment filtration system, located at the end of the sedimentation tank and before the water supply pump, mainly uses industrial-grade 60-80 mesh stainless steel filter screens and steel structure support parts to form a three-sided sand-blocking net to block sediment, leaves and other debris from passing through, allowing only water to pass through, thus meeting the water quality requirements for irrigation.

[0032] The intermittent pre-filter sediment removal system primarily utilizes a powered rotary mechanism to remove sediment. This rotating mechanism is the core component of the system. It includes an electric roller, rotating gears, a chain, soft / hard brush support plates, soft / hard brushes, and support tracks for the brush plates. This ensures that no gaps are missed during sediment removal, maximizing cleaning efficiency. The operation of this system prevents filter screen clogging, allowing suitable water to pass through smoothly.

[0033] The intermittent hydrodynamic sand removal system removes sediment and other contaminants from the sedimentation tank via the upper sand-cleaning device. This sediment is then discharged from the sedimentation tank and collected in a sand collection basin located outside the sedimentation tank. From there, it is transported to a designated location using both manual and mechanical methods. This completes a full sand-cleaning and sand-removal system. The system mainly includes: submersible pumps, water supply pipes, drainage channels, and sand collection basins. Its operating mechanism is intermittent hydrodynamic flushing and sand removal.

[0034] The irrigation emergency response system addresses the issue of sand removal device malfunction. When the sand removal device fails to operate, the filter screen becomes clogged, affecting water flow and causing irrigation to stop. To prevent this, the upper part of the filter screen is equipped with a switchable, electrically operated door-type filter. In case of malfunction, the door is temporarily opened to allow water to flow directly, ensuring uninterrupted irrigation and facilitating repairs of the sand removal device. The lower filter screen is fixed; the main equipment is an electrically chain-driven door opener / closer.

[0035] The secondary dust and debris protection system for the clear water tank consists of front and side filter screens within the sedimentation tank, forming a clear water pool. To prevent dust, leaves, weeds, floating debris, and residual film from entering the clear water pool after water treatment and affecting downstream equipment operation, a glass cover is used to protect the clear water pool. This cover serves both dust prevention and facilitates observation of the water conditions by staff. Key components include: glass door leaves, electric screw-type switches, and electric rotary hydraulic telescopic push-pull rods.

[0036] The electrical automation design for the operation of the electrical equipment is as follows: First, the electrical equipment in this system includes the sand cleaning system, the hydrodynamic sand flushing system, the emergency filtration system, and the dust prevention system for the clear water tank. All of these are designed to operate automatically under certain conditions and are interconnected. The overall approach is as follows: Based on the water quality in the sedimentation tank, the operating time and interval of the sand cleaning device are set, and they cycle automatically. During the interval after one cycle of sand cleaning, the submersible pump is immediately activated to pump water for hydrodynamic sand removal. These two systems operate alternately, forming an active intermittent sand cleaning and removal mode. Second, when the sand cleaning device malfunctions and stops working, the electric gate system on the upper part of the filtration screen is activated, opening the filtration screen gate and allowing water to flow into the clear water tank by gravity, ensuring the required flow rate for the pumps and guaranteeing normal irrigation water supply. After a single irrigation cycle (4-5 days) is completed, the system should be repaired and restored to operation immediately. In addition, if there is a problem with the equipment in the clear water tank inside the filter screen, the secondary dustproof electric glass window switch system should be activated to allow manual entry into the clear water tank for maintenance.

[0037] To ensure operational safety and timely monitoring of water levels inside and outside the filter network, the operational status of system equipment and devices, and water quality via video monitoring, a system for monitoring, surveillance, and alarm functions was designed and added. This system primarily includes: radar level gauges, float level gauges, cameras, and other digital and video acquisition and transmission equipment, as well as terminal digital and video display equipment.

[0038] The automated control operation module system controls the joint operation of the sand cleaning and discharging devices. A sand content sensor is installed in the sedimentation tank to collect real-time sand content data, which is transmitted to the operation module. The module performs decision analysis to determine the sand cleaning duration, interval duration, and discharge volume and duration. The system also includes a video monitoring and alarm system.

[0039] Specifically, the present invention provides the following technical solution: an active intermittent sand removal and flushing system for water bodies, comprising a sedimentation tank and a pump house located on the side of the sedimentation tank. The sedimentation tank is configured with a design water level. The system further includes: a filtration mechanism located within the sedimentation tank for filtering the water; the filtration mechanism includes a front filter screen fixedly installed within the sedimentation tank, and side filter screens fixedly installed at both ends of the front filter screen within the sedimentation tank; a filter screen adjustment mechanism located on the front filter screen and the two side filter screens for adjusting the front filter screen and the two side filter screens; the filter screen adjustment mechanism includes several leaf-type electric gate filter screens fixedly installed on the front filter screen and the two side filter screens; and a sand removal mechanism located within the sedimentation tank, on the side of the front filter screen and the two side filter screens, for cleaning the front filter screen and the two side filter screens; the sand removal mechanism includes components fixedly installed on the front filter screen and the two side filter screens. Several sand-cleaning machines are located on the side of the filter screen, each equipped with a cleaning brush. Several semi-circular comb plates are fixedly installed above the sand-cleaning machines in the sedimentation tank, with the cleaning brushes contacting the comb plates. A sand-discharging mechanism, located in the pump room, is used to discharge debris swept out by the sand-cleaning machines. The sand-discharging mechanism includes submersible pumps fixedly installed inside the front filter screen and two side filter screens, with a submersible pump flushing water pipe fixedly installed at the output end of each pump. A drainage trough is fixedly installed outside the sand-cleaning machines in the sedimentation tank, with the outlet end of the submersible pump flushing water pipe located within the drainage trough. A sand collection pool is fixedly installed at the outlet end of the drainage trough. A protective mechanism, located above the sedimentation tank, protects the front filter screen and the inner sides of the two front filter screens. The protective mechanism includes a fixed channel steel fixedly installed inside the sedimentation tank, with several glass window blades movably installed on the fixed channel steel.

[0040] Furthermore, the filtration mechanism also includes a number of filter holes formed on the front filter screen and the two side filter screens; and the pore size of the filter holes is 60-80 mesh.

[0041] Furthermore, the filter adjustment mechanism also includes a fixed filter screen that is fixedly installed on the front filter screen and the two side filter screens; the fixed filter screen is located below several of the leaf-type electric door filter screens.

[0042] Furthermore, the sand-cleaning mechanism also includes several electric rollers rotatably disposed within several sand-cleaning machines. Several rotating gears are also driven on the sand-cleaning machines. The cleaning brushes are driven on the sand-cleaning machines through the rotating gears. The several cleaning brushes are distributed at intervals on the sand-cleaning machines, and the intervals between the several cleaning brushes are the same. Several gantry steel channels are also fixedly disposed on the several sand-cleaning machines. Several roller support rails are fixedly disposed on each of the several gantry steel channels, and a transmission chain is driven within the roller support rails.

[0043] Furthermore, the sand discharge mechanism also includes an overflow pipe and a drain pipe located on the side wall of the sand collection pool; the overflow pipe is located above the drain pipe.

[0044] Furthermore, the protective mechanism also includes several electric screw window openers fixedly mounted on the fixed channel steel, each electric screw window opener having an electrically rotating hydraulic telescopic push-pull rod rotatably mounted on it; and the other end of the electrically rotating hydraulic telescopic push-pull rod is rotatably mounted to the inner wall of the glass window leaf.

[0045] Furthermore, a monitoring mechanism is also installed in the sedimentation tank to monitor the water level inside and outside the front filter screen and the two side filter screens, as well as the sand content outside the front filter screen and the two side filter screens; the monitoring mechanism includes a radar water level gauge fixedly installed above the sedimentation tank, and several sediment content monitoring meters are also fixedly installed inside the sedimentation tank; a wide-angle camera is fixedly installed on the side of the sedimentation tank; float water level gauges are placed inside the front filter screen and the two side filter screens.

[0046] Furthermore, a control mechanism is also provided on the side of the sedimentation tank for controlling the operation status inside the sedimentation tank; the control mechanism includes a steel pipe support frame fixedly installed on the side of the sedimentation tank, an RTU control box and a solar panel fixedly installed on the steel pipe support frame, and a lightning rod fixedly installed on the top of the steel pipe support frame; a cross arm is also fixedly installed on the side wall of the steel pipe support frame, the radar water level gauge is fixedly installed above the sedimentation tank through the cross arm, and the wide-angle camera is fixedly installed on the side of the sedimentation tank through the steel pipe support frame.

[0047] Furthermore, the pump room is also equipped with several water pumps, each of which is equipped with several water pump suction pipes; and one end of each water pump suction pipe is located inside the front filter screen and the two side filter screens.

[0048] Compared with existing technologies, the active intermittent sand removal and flushing system device for water bodies provided by the present invention has the following advantages:

[0049] (1) The system is complete and solves the current practical problems.

[0050] This includes a sand cleaning mechanism, a sand discharge mechanism, an emergency response system (i.e., a filter adjustment mechanism for operational safety) (electrically opening the filter screen), a secondary pollution prevention system (i.e., a protective mechanism for the electric glass windows covering the clear water tank to open / close), data and video acquisition and monitoring (i.e., a monitoring mechanism), alarm functions (safety), and an electrical automation operation system (i.e., a control mechanism). This comprehensively ensures the safety and normal operation of the system.

[0051] (2) It changed the operation mode of the traditional filtration system and avoided the problems that the traditional filtration system itself could not solve.

[0052] This system aims to solve the problem of sand removal and discharge at the source, changing the traditional post-pump treatment to pre-pump treatment, and changing the passive and stress-based treatment to active intermittent treatment.

[0053] (3) It avoids the problems that traditional systems inevitably encounter, resulting in significant energy savings.

[0054] This system operates without interrupting irrigation for backwashing, ensuring continuous irrigation water supply and meeting the requirements of the current agricultural management system of segmented contracting.

[0055] This system eliminates the backwashing phenomenon, thus preventing the loss and waste of agricultural fertilizer. On the contrary, the establishment of this system promotes the independent operation of each subsystem, without affecting, hindering, or restricting each other, avoiding fertilizer waste, and enabling uniform and continuous fertilization without interruption, ensuring stable and high agricultural yields.

[0056] This system is designed for intermittent sand cleaning and discharging, and the cleaning time, discharging time, and intermittent time are set according to the different sand content of the water body, so as to fully and scientifically save electrical energy and water resources.

[0057] This system can meet the filtration requirements without the need for traditional post-pump filtration equipment, saving about 25% of the system's electricity, resulting in significant energy savings.

[0058] (4) A sand removal mechanism was set up to achieve water and sand separation at the source.

[0059] Traditional systems lack a sediment removal system, failing to separate water and sediment and remove sand and debris. This is one of the biggest drawbacks of traditional systems, contradicting hydraulic principles. The accumulation of silt and debris in the sedimentation tank over time causes the water to become "pasty," hindering irrigation operations. This system, based on hydraulic principles, solves this problem at its source.

[0060] (5) An automatic digital monitoring system for operating conditions and a real-time online video monitoring and alarm system are set up.

[0061] It enables automatic alarms in advance when problems occur in equipment operation or water level control, ensuring the safe and normal operation of the entire system.

[0062] (6) It has a high degree of automation and high reliability.

[0063] Develop reasonable operating program modules to achieve full automation coverage of all aspects of the system and full coverage of start / stop operations. Attached Figure Description

[0064] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0065] Figure 1 This is a schematic diagram of the overall structure of the active intermittent sand removal and flushing system provided in an embodiment of the present invention;

[0066] Figure 2 Provided for embodiments of the present invention Figure 1 Schematic diagram of the cross-sectional structure at point A in the middle;

[0067] Figure 3 Provided for embodiments of the present invention Figure 1 Schematic diagram of the cross-sectional structure at point B in the middle;

[0068] Figure 4 Provided for embodiments of the present invention Figure 1 Schematic diagram of the cross-sectional structure at point C;

[0069] Figure 5 The diagram shows the front and side cross-sectional structure of the filter screen provided in the embodiments of the present invention, as well as a schematic diagram of the switch structure of the filter screen for the leaf-type electric door.

[0070] Figure 6 This is a schematic diagram of the structure of an electric glass window shutter provided in an embodiment of the present invention;

[0071] Figure 7 This is a schematic diagram of the electric glass window shutter drive structure provided in an embodiment of the present invention;

[0072] Figure 8 This is a schematic diagram of the monitoring mechanism structure provided in an embodiment of the present invention;

[0073] Figure 9 This is a schematic diagram of the control mechanism structure provided in an embodiment of the present invention;

[0074] Figure 10 The diagram shows the front, side, and top views of the gantry channel steel and roller support track provided in the embodiments of the present invention.

[0075] Explanation of reference numerals in the attached figures:

[0076] 1. Pump room; 2. Water pump; 3. Water pump suction pipe; 4. Submersible pump; 5. Submersible pump sand flushing water pipe; 6. Front filter screen; 61. Side filter screen; 7. Sand cleaning machine; 8. Drainage trough; 9. Sedimentation tank; 10. Gantry steel channel; 11. Drive chain; 12. Roller support track; 13. Electric roller; 14. Rotating gear; 15. Cleaning brush; 16. Semi-circular comb plate; 17. Sedimentation tank design water level; 18. Sand collection tank; 19. Overflow. 20. Water pipe; 21. Drainage pipe; 22. Leaf-type electric door filter screen; 23. Fixed filter screen; 24. Glass window leaf; 25. Fixed channel steel; 26. Electric rotary hydraulic telescopic push-pull rod; 37. Electric screw window opener; 38. Float level gauge; 39. Radar level gauge; 30. Wide-angle camera; 31. Sediment content monitor; 32. Steel pipe support frame; 33. RTU control box; 34. Solar panel; 35. Lightning rod; 36. Cross arm. Detailed Implementation

[0077] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0078] As attached Figure 1 To be continued Figure 10 As shown:

[0079] Example 1:

[0080] This invention provides an active intermittent sand removal and flushing system for water bodies, including a sedimentation tank 9 and a pump house 1 located on the side of the sedimentation tank 9. The sedimentation tank 9 is designed with a sedimentation tank design water level 17. The system also includes: a filtration mechanism located within the sedimentation tank 9 for filtering the water; the filtration mechanism includes a front filter screen 6 fixedly installed within the sedimentation tank 9, and side filter screens 61 fixedly installed at both ends of the front filter screen 6; a filter screen adjustment mechanism located on the front filter screen 6 and the two side filter screens 61 for adjusting the front filter screen 6 and the two side filter screens 61; and a sand removal mechanism located within the sedimentation tank 9, located on the side of the front filter screen 6 and the two side filter screens 61, for cleaning the front filter screen 6 and the two side filter screens 61; the sand removal mechanism includes components fixedly installed on the front filter screen 6 and the two side filter screens 61. Several sand cleaning machines 7 are located on the side of the surface filter screen 61. Each sand cleaning machine 7 is equipped with a cleaning brush 15. Several semi-circular comb plates 16 are fixedly installed above the sand cleaning machines 7 in the sedimentation tank 9, and the cleaning brushes 15 are in contact with the semi-circular comb plates 16. A sand discharge mechanism is installed in the pump room 1 to discharge the debris swept out by the sand cleaning mechanism. The sand discharge mechanism includes a submersible pump 4 fixedly installed inside the front filter screen 6 and the two side filter screens 61. The output end of the submersible pump 4 is fixed. A submersible pump flushing water pipe 5 is installed; a drainage trough 8 is fixedly installed outside several sand cleaning machines 7 inside the sedimentation tank 9, and the outlet end of the submersible pump flushing water pipe 5 is located inside the drainage trough 8; a sand collection pool 18 is fixedly installed at the outlet end of the drainage trough 8; a protective mechanism is installed above the sedimentation tank 9 to protect the front filter screen 6 and the inner side of the two front filter screens 6. The protective mechanism includes a fixed channel steel 24 fixedly installed inside the sedimentation tank 9, and several glass window blades 23 are movably installed on the fixed channel steel 24.

[0081] refer to Figure 1 , Figure 2 , Figure 5 The filtration mechanism includes a front filter screen 6 and a side filter screen 61;

[0082] By setting up a sedimentation tank 9 and a pump room 1 on the side of the sedimentation tank 9, and fixing a front filter screen 6 inside the sedimentation tank 9, and fixing two side filter screens 61 at both ends of the front filter screen 6 inside the sedimentation tank 9, a clear water pool area is enclosed inside the sedimentation tank 9 by the front filter screen 6 and the two side filter screens 61. The front filter screen 6 and the two side filter screens 61 are all provided with a number of 60-80 mesh filter holes, so that the water in the sedimentation tank 9 will be filtered by the front filter screen 6 and the two side filter screens 61. The water entering the clear water pool inside the front filter screen 6 and the two side filter screens 61 will be filtered of mud, sand and impurities in the water, so that the water in the clear water pool is easy to use for agricultural irrigation and drip irrigation, and can effectively avoid impurities in the water from clogging irrigation and drip irrigation equipment.

[0083] refer to Figure 1 , Figure 2 , Figure 5 The filter adjustment mechanism includes a leaf-type electric gate filter screen 21 and a fixed filter screen 22;

[0084] The front filter screen 6 and the two side filter screens 61 are divided into upper and lower areas. The lower area is a fixed filter screen 22, and the upper area is a leaf-type electric gate filter screen 21. During long-term use, if the filter holes on the front filter screen 6 and the two side filter screens 61 become severely clogged, the leaf-type electric gate filter screen 21 can be electrically opened. This allows water in the sedimentation tank 9 to pass through the opened leaf-type electric gate filter screen 21 and enter the clear water pool area inside the front filter screen 6 and the two side filter screens 61 from the upper area of ​​the front filter screen 6 or the side filter screens 61. This ensures that the clear water pool area can still be replenished with water in an emergency, so as to avoid affecting agricultural irrigation and drip irrigation operations.

[0085] Meanwhile, a pump house 1 is set up on the side of the sedimentation tank 9, and several water pumps 2 are fixedly connected inside the pump house 1. Water pump suction pipes 3 are fixedly connected to the water pumps 2, so that one end of the water pump suction pipe 3 is located in the clear water pool area inside the front filter screen 6 and the two side filter screens 61. This facilitates the several water pumps 2 to work with the water pump suction pipe 3 to pump water out of the clear water pool area to complete the purpose of transporting water for agricultural irrigation and drip irrigation.

[0086] Example 2:

[0087] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 10The sand cleaning mechanism includes a gantry channel steel 10, a sand cleaning machine 7, an electric roller 13, a rotating gear 14, a cleaning brush 15, a roller support track 12, a transmission chain 11, and a semi-circular comb plate 16.

[0088] Inside the sedimentation tank 9, several sand cleaning machines 7 are fixedly connected to the sides of the front filter screen 6 and the two side filter screens 61. A gantry steel channel 10 is also fixedly installed on each sand cleaning machine 7. This allows the sedimentation tank 9 to mount the sand cleaning machines 7 on the outside of the front filter screen 6 and the two side filter screens 61 via the gantry steel channel 10. Several roller support rails 12 are fixedly connected to the gantry steel channel 10, and several transmission chains 11 are driven through the roller support rails 12. An electric roller 13 is rotatably installed inside each sand cleaning machine 7, and several rotating gears 14 are also driven on each sand cleaning machine 7. When in use, the electric roller 13 inside the sand cleaning machine 7 drives the transmission chains 11 within the roller support rails 12, thereby driving the rotating gears 14 within the sand cleaning machine 7. The transmission motion is carried out on the rotating gear 14, and the cleaning brush 15 is installed on the rotating gear 14. This allows the electric roller 13 inside the sand cleaning machine 7 to drive the rotating gear 14 to rotate the cleaning brush 15 on the outer wall of the sand cleaning machine 7. Several cleaning brushes 15 are arranged to contact the outer walls of the front filter screen 6 and the two side filter screens 61 respectively. When the several cleaning brushes 15 are driven on the outside of the front filter screen 6 and the two side filter screens 61, they can clean the mud and debris blocked in the filter holes of the front filter screen 6 and the two side filter screens 61. This achieves the purpose of cleaning the sand in the front filter screen 6 and the two side filter screens 61, so that the front filter screen 6 and the two side filter screens 61 can continuously filter the water in the sedimentation tank 9. In addition, the spaced design structure between the several cleaning brushes 15 facilitates the flow of water in the sedimentation tank 9 through the sand cleaning machine 7.

[0089] Meanwhile, inside the sedimentation tank 9, above several sand cleaning machines 7, several semi-circular arc comb plates 16 are fixedly installed, and several cleaning brushes 15 on several sand cleaning machines 7 are arranged to contact the semi-circular arc comb plates 16 in sequence during transmission. This allows the cleaning brushes 15 to sweep away the mud and debris on the front filter screen 6 and the two side filter screens 61. When mud and debris are adsorbed on the cleaning brushes 15, the semi-circular arc comb plates 16 can comb the mud and debris adsorbed on the cleaning brushes 15 down, thereby avoiding any impact on the sand cleaning work of the cleaning brushes 15.

[0090] Secondly, a sedimentation tank design water level 17 is also set inside the sedimentation tank 9, which can serve as a benchmark for the water source stored in the sedimentation tank 9, so that the amount of water stored in the sedimentation tank 9 can be stored and used according to the sedimentation tank design water level 17. The design height of the front filter screen 6, the two side filter screens 61, as well as several sand cleaning machines 7 and the semi-circular comb plate 16, also need to be designed and used according to the height of the sedimentation tank design water level 17, so as to ensure the normal operation of the entire system device.

[0091] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 10 The sand removal mechanism includes a submersible pump 4, a submersible pump sand flushing water pipe 5, a drainage trough 8, a sand collection pool 18, an overflow pipe 19, and a drainage pipe 20.

[0092] By fixing a submersible pump 4 inside the clear water pool on the inner side of the front filter screen 6 and the two side filter screens 61, and installing a submersible pump sand flushing water pipe 5 on the submersible pump 4, the submersible pump 4 can discharge the water in the clear water pool through the submersible pump sand flushing water pipe 5. Inside the sedimentation tank 9, a drainage trough 8 is fixedly installed on the outer side of the front filter screen 6 and the two side filter screens 61, and the outlet end of the submersible pump sand flushing water pipe 5 is set in the drainage trough 8. After the mud and sand on several cleaning brushes 15 are combed off by the semi-circular comb plate 16, they will fall into the drainage trough 8. Then, the submersible pump 4, in conjunction with the submersible pump sand flushing water pipe 5, pumps the water in the clear water pool out and discharges it into the drainage trough 8. The mud and sand are then flushed away through the drainage trough 8, preventing them from falling back into the sedimentation tank 9 and affecting the use of the sand cleaning machine 7, the front filter screen 6, and the side filter screens 61.

[0093] Meanwhile, a sand collection pool 18 is fixedly installed at the outlet end of the drainage ditch 8, and an overflow pipe 19 and a drain pipe 20 are fixedly installed on the side wall of the sand collection pool 18. This allows the submersible pump 4 and the submersible pump flushing water pipe 5 to flush the mud and debris in the drainage ditch 8 into the sand collection pool 18 for accumulation. The overflow pipe 19 on the side wall of the sand collection pool 18 will overflow excess water in the drainage ditch 8, keeping the water level in the drainage ditch 8 within a safe and reasonable range, preventing the sand collection pool 18 from failing due to excessive water volume. The drain pipe 20 can drain the water in the sand collection pool 18, making it easier for workers to clean the mud and debris accumulated in the sand collection pool 18.

[0094] Example 3:

[0095] refer to Figure 1 , Figure 6 and Figure 7The protective mechanism includes a fixed channel steel 24, a glass window leaf 23, an electric rotary hydraulic telescopic push-pull rod 25, and an electric screw window opener 26;

[0096] By installing a fixed channel steel 24 inside the sedimentation tank 9, located in the clear water pool area inside the front filter screen 6 and the two side filter screens 61, and by movably installing several glass window blades 23 on the fixed channel steel 24, the fixed channel steel 24 and the several glass window blades 23 can protect the clear water pool area inside the front filter screen 6 and the two side filter screens 61 to prevent debris from falling into the clear water pool. The glass window blades 23 are made of high-transparency glass, allowing staff to observe the condition inside the clear water pool through the glass window blades 23, thus not affecting the normal inspection work inside the sedimentation tank 9.

[0097] Meanwhile, several electric screw window openers 26 are installed on the fixed channel steel 24, and an electric rotary hydraulic telescopic push-pull rod 25 is rotatably connected between the electric screw window openers 26 and the glass window leaf 23. When safety inspections or maintenance are required in the clear water tank, the glass window leaf 23 can be opened electrically by controlling the electric rotary hydraulic telescopic push-pull rod 25 and the electric screw window openers 26. The maximum rotation opening angle of the glass window leaf 23 is set to 90°, which facilitates the staff to enter the clear water tank through the glass window leaf 23 to carry out safety inspections or maintenance.

[0098] refer to Figure 8 and Figure 9 The monitoring system includes a float level gauge 30, a radar level gauge 31, a wide-angle camera 32, and a sediment content monitor 33.

[0099] By installing float level gauges 30 inside the sedimentation tank 9, located inside the front filter screen 6 and the two side filter screens 61, and by fixing radar level gauges 31 above the sedimentation tank 9, located outside the front filter screen 6 and the two side filter screens 61, the float level gauges 30 and radar level gauges 31 can monitor the water levels inside and outside the front filter screen 6 and the two side filter screens 61 in real time. When the water level difference between the inside and outside of the front filter screen 6 and the two side filter screens 61 becomes abnormal, an alarm signal can be issued through the float level gauges 30 and radar level gauges 31, so as to quickly remind the staff to check and repair the situation inside the sedimentation tank 9, thereby improving the safety of the entire system.

[0100] Meanwhile, a wide-angle camera 32 installed on the side of the sedimentation tank 9, and two sediment content monitoring meters 33 fixedly installed inside the sedimentation tank 9, can observe and monitor the water entering the sedimentation tank 9. The wide-angle camera 32 can view the content of sediment and impurities in the water source in the sedimentation tank 9, while the sediment content monitoring meters 33 can monitor the content of sediment and impurities in the water source in the sedimentation tank 9. This facilitates the adjustment of the operating frequency of several sand cleaning machines 7 and submersible pumps 4 according to the water source conditions with different sediment content in the sedimentation tank 9.

[0101] refer to Figure 8 and Figure 9 The control mechanism includes a steel pipe support frame 34, an RTU control box 35, a solar panel 36, and a lightning rod 37.

[0102] By fixing a steel pipe support frame 34 to the side of the sedimentation tank 9, the wide-angle camera 32 can be easily fixedly installed on the side of the sedimentation tank 9 for use. A cross arm 38 is also fixedly installed on the steel pipe support frame 34, so that the radar water level gauge 31 can be easily fixedly installed above the sedimentation tank 9 through the cross arm 38 to monitor the water level in the sedimentation tank 9.

[0103] Meanwhile, an RTU control box 35 is also fixedly installed on the steel pipe support frame 34, enabling the RTU control box 35 to upload data to the central dispatch center via 4G, 5G, Ethernet or radio; and to receive remote commands to execute control operations such as opening / closing valves and starting / stopping pumps; in addition, the RTU control box 35 also has local logic judgment and alarm processing capabilities such as over-limit automatic protection, data storage and forwarding functions, and the RTU control box 35 is fixedly connected to the steel pipe support frame 34, and a lightning rod 37 is fixedly connected to the top of the steel pipe support frame 34, so that the solar panel 36 can charge the battery in the RTU control box 35, so that in the event of an accidental power outage, the radar level gauge 31, the wide-angle camera 32 and the RTU control box 35 can still work in an emergency, and the lightning rod 37 can be removed from the top of the steel pipe support frame 34 for safety protection;

[0104] Secondly, the RTU control box 35 can also adjust the program according to different seasonal needs, so that the sand cleaning machine 7 and the submersible pump 4 have different intervals and running times. For example, during the irrigation season, the running time of the sand cleaning machine 7 and the submersible pump 4 is increased, so that the sand cleaning machine 7 and the submersible pump 4 run more frequently, in order to prevent the front filter screen 6 from becoming clogged. And according to the content of silt and impurities in the water source in the sedimentation tank 9, the intervals and running times of the sand cleaning machine 7 and the submersible pump 4 are adjusted. When the wide-angle camera 32 observes that the content of silt and impurities in the water source entering the sedimentation tank 9 is high, the running time of the sand cleaning machine 7 and the submersible pump 4 is increased, so that the sand cleaning machine 7 and the submersible pump 4 run more frequently, in order to prevent the front filter screen 6 from becoming clogged; conversely, the running time of the sand cleaning machine 7 and the submersible pump 4 is reduced, so as to achieve the purpose of energy saving and environmental protection.

[0105] The back-end control equipment consists of commonly used electrical components in society today, which can be installed and used in conjunction with actual usage needs, so they will not be described in detail here.

[0106] Working principle: After the system is started, the water in the sedimentation tank 9 is first filtered by the front filter screen 6 and the two side filter screens 61 (with a pore size of 60-80 mesh). Debris such as mud and leaves are blocked on the outside of the filter screens, and the clean water enters the clear water pool surrounded by the filter screens. Then, the water pump 2 in the pump house 1 draws water from the clear water pool through the water pump suction pipe 3 for irrigation. When the mud and sand content monitoring meter 33 in the sedimentation tank 9 detects that the sand content has reached the set threshold, or when it is started at a time according to the preset program of the RTU control box 35, the sand cleaning mechanism starts to work: the electric roller 13 in the sand cleaning machine 7 drives the transmission chain 11 to run on the roller support track 12, which drives the rotating gear 14 to rotate, so that the cleaning brush 15 sweeps along the water-facing surface of the front filter screen 6 and the side filter screens 61, brushing off the attached mud and sand; during the rotation, the cleaning brush 15 contacts the semi-circular comb plate 16, combing off the debris adsorbed on the brush and letting it fall into the drainage trough 8 below. After the sand cleaning operation is completed, an intermittent period begins. During this time, the sand discharge mechanism is activated: the submersible pump 4, located in the clear water pool, draws clean water and discharges high-pressure water into the drainage trough 8 through the submersible pump flushing water pipe 5. The water force then flushes the accumulated silt and debris in the trough into the sand collection pool 18. The overflow pipe 19 and drainage pipe 20, located on the side wall of the sand collection pool 18, are used to regulate the water level and drain the water. If the sand cleaning machine 7 malfunctions and cannot clean the sand normally, the leaf-type electric door filter screen 21 in the filter adjustment mechanism automatically opens, ensuring that water can flow smoothly into the clear water pool and preventing irrigation interruption. In the protective mechanism above the sedimentation tank 9, the glass window slats 23 cover the top of the clear water pool to prevent dust and debris from falling in. When it is necessary to enter the clear water pool for maintenance, the electric screw window opener 26 drives the electric rotary hydraulic telescopic push-pull rod 25 to open the glass window slats 23 (maximum angle 90°). Throughout the operation, the monitoring system operates in real time: radar level gauge 31 monitors the water level outside the filter screen, float level gauge 30 monitors the water level inside the filter screen, wide-angle camera 32 and sediment content monitor 33 are used for video monitoring and sediment content data acquisition, respectively. All data is uploaded to RTU control box 35, which automatically adjusts the sand cleaning time, sand discharge time and interval time according to the sediment content to achieve active intermittent sand cleaning and discharge cycle operation. Solar panel 36 provides auxiliary power to the system, and lightning rod 37 ensures equipment safety.

[0107] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water body active intermittent sand removal and discharge system, comprising a sedimentation tank (9) and a pump house (1) disposed on the side of the sedimentation tank (9), wherein the sedimentation tank (9) is provided with a sedimentation tank design water level (17), characterized in that, Also includes: A filtration mechanism is installed in the sedimentation tank (9) for filtering the water in the sedimentation tank (9). The filtration mechanism includes a front water filter screen (6) fixedly installed in the sedimentation tank (9), and side water filter screens (61) are fixedly installed at both ends of the front water filter screen (6) inside the sedimentation tank (9). The filter adjustment mechanism is provided on the front filter screen (6) and the two side filter screens (61). The filter adjustment mechanism includes a plurality of leaf-type electric gate filter screens (21) fixedly provided on the front filter screen (6) and the two side filter screens (61). The sand cleaning mechanism is set in the sedimentation tank (9) and located on the side of the front filter screen (6) and the two side filter screens (61). It is used to clean the front filter screen (6) and the two side filter screens (61). The sand cleaning mechanism includes several sand cleaning machines (7) fixedly set on the side of the front filter screen (6) and the two side filter screens (61). Each of the sand cleaning machines (7) is equipped with a cleaning brush (15). Several semi-circular comb plates (16) are fixedly set above the sand cleaning machines (7) in the sedimentation tank (9), and the cleaning brush (15) is in contact with the semi-circular comb plate (16). The sand discharge mechanism is located in the pump room (1) and is used to discharge the debris swept out by the sand cleaning mechanism. The sand discharge mechanism includes a submersible pump (4) fixedly installed inside the front filter screen (6) and two side filter screens (61). The output end of the submersible pump (4) is fixedly installed with a submersible pump flushing water pipe (5). A drainage trough (8) is fixedly installed in the sedimentation tank (9) outside several sand cleaning machines (7), and the outlet end of the submersible pump flushing water pipe (5) is located in the drainage trough (8). A sand collection pool (18) is fixedly installed at the outlet end of the drainage trough (8). The protective mechanism is set above the sedimentation tank (9) to protect the front filter screen (6) and the inner side of the two front filter screens (6). The protective mechanism includes a fixed channel steel (24) fixedly set inside the sedimentation tank (9), and several glass window blades (23) are movably set on the fixed channel steel (24).

2. The active intermittent sand removal and discharge system device for water bodies according to claim 1, characterized in that, The filtration mechanism also includes several filter holes opened on the front filter screen (6) and the two side filter screens (61); Furthermore, the filter pore size is 60-80 mesh.

3. The active intermittent sand removal and discharge system device for water bodies according to claim 1, characterized in that, The filter adjustment mechanism also includes a fixed filter (22) fixedly installed on the front filter (6) and the two side filter (61). The fixed filter screen (22) is located below several of the leaf-type electric gate filter screens (21).

4. The active intermittent sand removal and discharge system device for water bodies according to claim 1, characterized in that, The sand cleaning mechanism also includes several electric rollers (13) rotatably disposed in several sand cleaning machines (7), and several rotating gears (14) are also driven on the sand cleaning machine (7). The cleaning brush (15) is driven on the sand cleaning machine (7) through the rotating gears (14). Furthermore, a number of the cleaning brushes (15) are arranged in an intermittent manner on the sand cleaning machine (7), and the interval between the cleaning brushes (15) is the same; Several gantry steel channels (10) are fixedly installed on several of the aforementioned sand cleaning machines (7), and several roller support rails (12) are fixedly installed on each of the aforementioned gantry steel channels (10), and a transmission chain (11) is installed inside the roller support rails (12).

5. The active intermittent sand removal and discharge system device for water bodies according to claim 1, characterized in that, The sand discharge mechanism also includes an overflow pipe (19) and a drainage pipe (20) located on the side wall of the sand collection pool (18). The overflow pipe (19) is located above the drain pipe (20).

6. The active intermittent sand removal and discharge system for water bodies according to claim 1, characterized in that, The protective mechanism also includes several electric screw window openers (26) fixedly installed on the fixed channel steel (24), and an electric rotary hydraulic telescopic push-pull rod (25) is rotatably installed on the electric screw window opener (26). Furthermore, the other end of the electric rotary hydraulic telescopic push-pull rod (25) is rotatably set to the inner wall of the glass window leaf (23).

7. The active intermittent sand removal and discharge system device for water bodies according to claim 1, characterized in that, The sedimentation tank (9) is also equipped with a monitoring mechanism to monitor the water level inside and outside the front filter screen (6) and the two side filter screens (61), as well as the sand content outside the front filter screen (6) and the two side filter screens (61). The monitoring mechanism includes a radar water level gauge (31) fixedly installed above the sedimentation tank (9), and several sediment content monitoring gauges (33) are also fixedly installed inside the sedimentation tank (9). A wide-angle camera (32) is fixedly installed on the side of the sedimentation tank (9). A float level gauge (30) is placed inside the front filter screen (6) and the two side filter screens (61).

8. The active intermittent sand removal and discharge system device for water bodies according to claim 7, characterized in that, The sedimentation tank (9) is also equipped with a control mechanism on its side for controlling the operation of the sedimentation tank (9); The control mechanism includes a steel pipe support frame (34) fixedly installed on the side of the sedimentation tank (9), an RTU control box (35) and a solar panel (36) fixedly installed on the steel pipe support frame (34), and a lightning rod (37) fixedly installed on the top of the steel pipe support frame (34). A cross arm (38) is fixedly installed on the side wall of the steel pipe support frame (34). The radar water level gauge (31) is fixedly installed above the sedimentation tank (9) through the cross arm (38), and the wide-angle camera (32) is fixedly installed on the side of the sedimentation tank (9) through the steel pipe support frame (34).

9. The active intermittent sand removal and discharge system device for water bodies according to claim 1, characterized in that, The pump room (1) is also equipped with several water pumps (2), and each of the water pumps (2) is equipped with several water pump suction pipes (3). Furthermore, one end of the water pump suction pipe (3) is located inside the front filter screen (6) and the two side filter screens (61).

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