A compound ecological water-passing weir system

Abstract

The application relates to the technical field of water regulation, in particular to a composite ecological water passing weir system, which comprises a sedimentation area for precipitating suspended matters in water flow and a plurality of filler areas for filtering; the water passing directions are oppositely arranged and are set as a first direction and a second direction, and the first filler area and the second filler area correspond to the water inlet direction; a plurality of first water passing air bags and a plurality of second water passing air bags are arranged on each filler area; wherein the water passing condition is that the water level of any direction reaches the flood level. The water passing weir system has bidirectional passing capacity and can adapt to water level changes under different conditions; the system is provided with two corresponding water passing directions and uses water passing air bags for control, so that when the water level reaches the flood level, the water passing weir can work from different directions, and when the water passing condition is reached in any direction, the opposite air bag is automatically opened to reduce the resistance; the risk of the water passing weir being blocked is effectively avoided, and the adaptability of the water passing weir system is improved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic regulation technology, and in particular to a composite ecological weir system. Background Technology

[0002] As the project is gradually improved, some natural rivers have experienced water level changes at their tributary mouths or confluences during the water replenishment process, due to the replenishment of some rivers.

[0003] In existing technologies, water conservancy facilities such as reservoirs are often used to solve similar problems. However, building reservoirs requires a large area and it is difficult to effectively control suspended matter in the water flow.

[0004] Chinese Patent Application Publication No. CN111042072A discloses an ecological water purification weir system, belonging to the field of water conservancy engineering technology. It includes a weir, a purification pool, a storage weir, and a filter screen. The weir comprises a weir body, two side columns, two protective mechanisms, and an overflow weir. The protective mechanisms include multiple supporting columns and multiple protective baffles, with the protective baffles detachably installed on the supporting columns. Each protective baffle includes a first contact plate, a first connecting plate fixed to one end of the first contact plate, a first baffle fixed to the end of the first connecting plate away from the first contact plate, a second connecting plate fixed to the other end of the first contact plate, and a second baffle fixed to the end of the second connecting plate away from the first contact plate. The first baffle and the adjacent second baffle are interlocked. This ecological water purification weir system prevents water from contacting the weir body, reducing the likelihood of water entering the weir body and reducing the scouring effect of water on the weir body, thus increasing the service life of the weir body. It also has the advantages of easy installation and use.

[0005] However, the above method is designed for unidirectional water flow, and the layout of its purification structure is optimized based on a fixed water flow direction.

[0006] However, in practical applications, many rivers exhibit significant differences in flow direction, flow rate, and pollutant load between the dry and flood seasons. In unidirectional systems, the purification efficiency drops sharply when the flow reverses or the flow rate increases dramatically during the flood season, potentially leading to packing blockage and system failure.

[0007] Therefore, the current weirs urgently need to address the problem of difficulty in effectively controlling the weirs in river sections where water levels change at different times. Summary of the Invention

[0008] To address this issue, the present invention provides a composite ecological water passage system. This system overcomes the problem of existing unidirectional weir systems, which struggle to effectively control water passage in river sections where water levels fluctuate, leading to river pollution.

[0009] To achieve the above objectives, the present invention provides a composite ecological weir system, including a sedimentation zone for settling suspended solids in the water flow and several filler zones for filtration. Its features include a water flow direction arranged opposite to each other, and configured as a first direction and a second direction, as well as a first filler area and a second filler area corresponding to the water inlet direction; Each packing area is equipped with several first water-passing airbags and several second water-passing airbags; When the water flow condition is met in any direction, the water-passing weir will open each of the oppositely arranged water-passing airbags and allow the water to flow through in that direction. In response to water flow from any direction, each corresponding water-passing airbag closes. The response indicates that the water passage conditions have been met in all directions, and all water passage airbags are closed. The water passage condition is that the water level in any direction reaches the flood level.

[0010] Furthermore, for a single water flow direction, the corresponding sedimentation zone is located in front of the packing zone; The packing area is composed of several packing modules; When the water-passing airbag is closed, the packing modules corresponding to each packing area and the water-passing airbag form a corresponding stepped unit. A single stepped unit includes at least one packing module and one sedimentation module, and the stepped units are arranged sequentially from high to low along the corresponding water flow direction.

[0011] Furthermore, the packing module is rectangular, and its corresponding water-passing airbag is disposed on the upper surface of the sedimentation module; When the water-passing airbag is opened, it covers the corresponding sedimentation module and packing module.

[0012] Furthermore, for a single packing zone, its corresponding width is set to the preset duration for which the water flow stays when passing through the packing zone; The preset duration is related to the material of the filler.

[0013] Furthermore, the sedimentation zone is provided with several inlets and outlets, as well as several inclined plates corresponding to each inlet, wherein, For each inlet corresponding to a single direction, the corresponding inclined plate is set at a preset angle and in the corresponding direction to settle suspended solids in the water flow. The outlet is located at the bottom of the sedimentation zone.

[0014] Furthermore, the bottom of each sedimentation module corresponding to the packing area is interconnected with the sedimentation area to collect the sediment after sedimentation to the corresponding position.

[0015] Furthermore, the water-passing weir system also includes several flow-guiding modules that are configured together with the water-passing airbags to control the opening or closing of each water-passing airbag and to adjust the water flow speed of the water-passing weir. When the water passage condition is met in any direction, the corresponding flow guiding module controls the corresponding water passage airbag to close and opens the water passage airbag in the opposite direction to reduce the resistance in that direction. If the water flow conditions are not met in any direction, the flow guiding module controls the opening or closing of each water-passing airbag according to the corresponding water level. For water levels that do not reach the rated flow range, the flow guiding module closes each water-passing airbag to increase the water flow velocity; For water levels exceeding the rated flow range, the flow guiding module activates the corresponding water-passing airbags to reduce the water flow velocity. The rated flow rate is proportional to the preset duration.

[0016] Furthermore, the flow guiding module is also equipped with several flow guiding plates arranged in the same direction as the stepped unit; For a single deflector When the water-passing airbag corresponding to the baffle opens, the baffle covers the corresponding stepped unit; The water-passing airbag corresponding to the response deflector closes, and the direction of the deflector is perpendicular to the horizontal plane.

[0017] Furthermore, it also includes a control module that, in response to a water level exceeding the rated flow range but not reaching the rated flow, issues a blockage alarm. When the response control module issues a blockage alarm, each flow guiding module activates its respective water-passing airbag, and the water-passing weir system stops filtering.

[0018] Furthermore, if the water level difference between any direction and the opposite direction is not greater than a preset water level difference, the control module controls each flow guiding module corresponding to the direction where the water level is lower than the opposite direction to open the corresponding water-passing airbag.

[0019] Compared with the prior art, the beneficial effects of the present invention are that the water-passing weir system of the present invention has bidirectional passage capability and can adapt to water level changes under different conditions. By setting two opposing water passage directions and using water-passing airbag control, the system can enable the water-passing weir to work from different directions when the water level reaches the flood level. When the water passage conditions are met in either direction, the opposing airbag is automatically opened to reduce resistance. While effectively avoiding the risk of the water-passing weir being blocked, the adaptability of the water-passing weir system is improved.

[0020] Furthermore, by placing the sedimentation zone before the packing zone, the water flow can undergo initial purification in the sedimentation zone, effectively reducing the load on the packing zone. At the same time, by setting the packing zone in a stepped shape, the water flow passing through the packing zone can fully contact the air as it falls, effectively improving the purification capacity of the weir system while also enhancing its adaptability.

[0021] Furthermore, by placing the water-passing airbags on the upper surface of the sedimentation module, the packing module in the other direction is prevented from being damaged by water flow when working in either direction. At the same time, the placement of the airbags is synchronized with the steps, which can effectively reduce water flow resistance and avoid siltation caused by excessive subsequent sedimentation time, thereby further improving the adaptability of the water-passing weir system.

[0022] Furthermore, by setting corresponding inclined plates for bidirectional water flow in the sedimentation zone, the sedimentation efficiency of suspended solids is improved. And by connecting the bottom of the sedimentation zone with the bottom of the packing zone, sediments are collected uniformly at the bottom of the sedimentation zone, which not only effectively improves the cleaning efficiency but also further enhances the adaptability of the weir system.

[0023] Furthermore, by setting up a flow guiding module, the airbag and the flow guide plate are used to control the water flow speed and block the filling area, which avoids the failure of the weir to work properly due to changes in water volume and water level, and effectively improves the stability of the system.

[0024] Furthermore, when the bidirectional water level difference is small, the airbag of the low-position diversion module is automatically activated to balance the water volume and flow rate, preventing either side from failing to complete the work effectively. This effectively reduces the mechanical fatigue of the weir and extends the system life, thereby effectively improving the stability of the system. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the connection of the composite ecological weir system of the present invention; Figure 2 This is a schematic diagram of the composite ecological weir system of the present invention; Figure 3 This is a schematic cross-sectional view of the weir in an embodiment of the present invention; Figure 4 This is a schematic diagram of the guide plate arrangement for the weir in an embodiment of the present invention; Figure 5 This is a schematic diagram of the opening of the water-passing weir guide plate and water-passing airbag according to an embodiment of the present invention; In the diagram: 1, water-passing airbag; 2, deflector plate; 3, flow guiding module; 4, water flow direction. Detailed Implementation

[0026] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0027] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0029] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Please see Figure 1 As shown, it is a connection diagram of the composite ecological weir system of the present invention, including a sedimentation zone for settling suspended matter in the water flow, and several filler zones for filtration. Its water flow direction is set opposite to each other, and is set as a first direction and a second direction, as well as a first filler area and a second filler area corresponding to the water inlet direction; Each packing area is equipped with several first water-passing airbags and several second water-passing airbags; When the water flow conditions are met in any direction, the weir will open the airbags set in opposite directions and allow the water to flow through in that direction; In response to water flow from any direction, each corresponding water-passing airbag closes. The response indicates that the water passage conditions have been met in all directions, and all water passage airbags are closed. Among them, the flooding condition is that the water level in any direction reaches the flood level.

[0031] This weir system has bidirectional passage capability and can adapt to water level changes under different conditions. By setting two opposing water passage directions and using water passage airbag control, the system can enable the weir to work from different directions when the water level reaches the flood level. When the water passage conditions are met in either direction, the opposing airbag is automatically opened to reduce resistance. This effectively avoids the risk of the weir being blocked and improves the adaptability of the weir system.

[0032] Please see Figure 2 As shown, it is a structural schematic diagram of the composite ecological water-passing weir system of the present invention. For a single water-passing direction, the corresponding sedimentation zone is set in front of the filler zone. The packing zone consists of several packing modules; When the water-passing airbag is closed, the packing modules corresponding to each packing area and the water-passing airbag form corresponding stepped units. A single stepped unit includes at least one packing module and one sedimentation module, and the stepped units are arranged sequentially from high to low along the corresponding water flow direction.

[0033] By placing the sedimentation zone before the packing zone, the water flow can undergo initial purification in the sedimentation zone, effectively reducing the load on the packing zone. At the same time, by setting the packing zone in a stepped shape, the water flow passing through the packing zone can fully contact the air as it falls, effectively improving the purification capacity of the weir system while also enhancing its adaptability.

[0034] For a river flowing from west to east, the aforementioned weir system can perform the following functions: Example 1: The first direction meets the conditions for water passage. Under normal circumstances, the river inlet flows from west to east, replenishing the main stream with water from tributaries.

[0035] System response and working process: Airbag Action and Control: The system detected that the western side had reached the flood level.

[0036] The first water-passing airbag on the east side is closed, so that the first filling area and the sedimentation area form an integrated water-blocking structure.

[0037] Open the second water-passing airbag on the west side to allow water to flow over the second packing area.

[0038] At this point, the water flow path and purification process are as follows: West side: The floodwater first enters the sedimentation zone through the second filling zone, where the horizontal pipe sedimentation system in the storage tank performs preliminary rectification and sedimentation on the high-velocity, high-flow-rate floodwater, removing most of the coarse suspended particles.

[0039] Because the water-passing airbag on the west side is open, the water flow cannot pass directly through the filling area on this side, but is instead guided by the weir structure to the sedimentation area and the east side.

[0040] East side: Water flows over the closed second water-passing air chamber over the weir and into the filler area on the east side.

[0041] At this point, due to the stepped design, the water flows into the filler on the east side, where the filler adsorbs and filters fine particles and dissolved pollutants in the water.

[0042] At this point, the water that has undergone two stages of purification—the sedimentation zone and the eastern filler zone—is discharged from the east side.

[0043] Implementation: 2: The second direction meets the conditions for water passage. When water is replenished to a river, the river inlet flows from east to west, replenishing the tributaries from the main stream.

[0044] System response and working process: Airbag Action and Control: The system detected that the flood level had been reached on the east side.

[0045] The first water-passing airbag on the east side is opened, so that the second filling area and the sedimentation area form an integrated water-blocking structure.

[0046] Close the second water-passing airbag on the west side to allow water to flow over the first packing area.

[0047] At this point, the water flow path and purification process are as follows: East side: The floodwater first enters the sedimentation zone through the first filling zone, where the horizontal pipe sedimentation system in the storage tank performs preliminary rectification and sedimentation on the high-velocity, high-flow-rate floodwater, removing most of the coarse suspended particles.

[0048] Because the water-passing airbag on the east side is open, the water flow cannot pass directly through the filling area on this side, but is guided by the weir structure to the sedimentation area and the west side.

[0049] West side: Water flows over the weir, through the closed first water-passing air chamber, and into the filler area on the west side.

[0050] At this point, due to the stepped design, the water flows into the filler on the west side, where the filler adsorbs and filters fine particles and dissolved pollutants in the water.

[0051] The water, purified through two stages—sedimentation zone and western filler zone—is discharged from the west side.

[0052] It should be noted that the flood levels corresponding to the first and second directions may be different, but the height of the weir body corresponding to the first and second directions should be the same. The difference in flood levels can be addressed by setting corresponding grooves at the bottom of the weir body or by raising the weir body.

[0053] Specifically, the packing module is rectangular, and its corresponding water-passing airbag is set on the upper surface of the sedimentation module; When the water-passing airbag is activated, it covers the corresponding sedimentation module and packing module.

[0054] By placing the water-passing airbags on the upper surface of the sedimentation module, the packing module in the other direction is prevented from being damaged by water flow when working in either direction. At the same time, the placement of the airbags is synchronized with the steps, which can effectively reduce water flow resistance and avoid siltation caused by excessive sedimentation time, thereby further improving the adaptability of the water-passing weir system.

[0055] Specifically, for a single packing zone, its width is set to the preset duration for which the water flow stays when passing through the packing zone; The preset duration is related to the material of the packing.

[0056] It should be noted that the packing materials can be selected from the following categories: 1. Physical filtration packing These types of packing materials mainly remove suspended solids (SS), colloidal substances, and some impurities from water through pore trapping and adsorption.

[0057] Quartz sand: Characteristics and Functions: The most traditional and commonly used filter material, with high hardness and stable chemical properties. It mainly traps suspended solids through the pores between sand particles of different sizes.

[0058] anthracite: Characteristics and functions: It has a lower relative density and higher porosity than quartz sand. In double or multi-layer filters, it is often placed on top of quartz sand to trap more fine particles and has a stronger dirt-holding capacity.

[0059] Activated carbon (granular): Features and functions: It has a huge specific surface area and a well-developed microporous structure, and has a strong physical adsorption capacity, which can effectively remove color, odor, some organic pollutants and chlorine from water.

[0060] 2. Chemical adsorption / precipitation type packing material These types of fillers remove pollutants through surface chemical reactions, ion exchange, or precipitation.

[0061] Zeolite (natural or synthetic): Characteristics and functions: A porous aluminosilicate mineral with ion exchange and adsorption capabilities, it is particularly effective in removing ammonia nitrogen. It can also adsorb some heavy metals and organic matter.

[0062] Limestone, vermiculite: Features and functions: It can slowly dissolve and adjust the pH value of water. At the same time, it can remove phosphorus by reacting with phosphate ions to form precipitates.

[0063] Biological ceramsite: Characteristics and functions: The surface is rough, porous and moderately dense, which not only provides a huge surface area for physical filtration, but also makes it easier for microorganisms to attach to the surface, thus combining physical and biological functions.

[0064] 3. Biofilm carrier type packing material Polyurethane foam, polyethylene suspension balls: Characteristics and functions: It has extremely high porosity, providing a huge growth space for microorganisms and has a high bioload.

[0065] Volcanic rock, slag (such as blast furnace slag): Features and functions: It is a natural porous material with low price. The micropores on the surface are very conducive to the adhesion of microorganisms. At the same time, some slag components (such as calcium, iron and aluminum) also help with chemical dephosphorization.

[0066] 4. Composite packing A. Front Layer Material: Zeolite or volcanic rock with large particle size.

[0067] Function: It retains larger particulate matter and, at the same time, utilizes its biofilm and ion exchange functions to begin degrading organic matter and removing ammonia nitrogen.

[0068] B. Core Layer Material: A mixture of small-particle bio-ceramic granules or quartz sand and anthracite.

[0069] Function: Further removes fine suspended matter and provides a stable attachment environment for nitrifying bacteria, etc., to carry out deep denitrification.

[0070] C. Post- / Functional Layer Materials: If the target water body has a high phosphorus content, a layer of limestone can be installed; if there is severe organic pollution or odor, a layer of granular activated carbon can be installed.

[0071] Function: Targeted removal of phosphorus, color, odor, etc.

[0072] The preset durations for various types of packing materials are shown in Table 1 below, which serves as a comparison table of packing material durations: Table 1. Packing Time Comparison Table Specifically, the sedimentation zone is equipped with several inlets and outlets, as well as several inclined plates corresponding to each inlet. For each inlet corresponding to a single direction, the corresponding inclined plate is set at a preset angle and in the corresponding direction to settle suspended solids in the water flow. The outlet is located at the bottom of the sedimentation zone.

[0073] Please see Figure 3 As shown, it is a schematic cross-sectional view of the weir in an embodiment of the present invention. The bottom of each sedimentation module corresponding to the filling area is connected to the sedimentation area to collect the sediment that has completed sedimentation to the corresponding position.

[0074] By setting up corresponding inclined plates for bidirectional water flow in the sedimentation zone, the sedimentation efficiency of suspended solids is improved. Furthermore, by connecting the bottom of the sedimentation zone with the bottom of the packing zone, sediments are collected uniformly at the bottom of the sedimentation zone. This not only effectively improves the cleaning efficiency but also further enhances the adaptability of the weir system.

[0075] Specifically, the weir system also includes several flow guiding modules that are set together with the water-passing airbags to control the opening or closing of each water-passing airbag and to adjust the water flow speed of the weir. When the water passage conditions are met in any direction, the corresponding flow guiding module controls the corresponding water passage airbag to close and opens the water passage airbag in the opposite direction to reduce the resistance in that direction. If the water flow condition is not met in any direction, the flow guiding module controls the opening or closing of each water-passing airbag according to the corresponding water level. For water levels that do not reach the rated flow range, the flow guiding module closes all water-passing airbags to increase the water flow velocity; For water levels exceeding the rated flow range, the flow guiding module activates the corresponding water-passing airbags to reduce the water flow velocity. The rated flow rate is proportional to the preset duration.

[0076] Example 3: Based on Example 1, a sudden downpour occurred in the upstream basin on the west side, causing the water level on the west side to rise sharply.

[0077] The system detected an instantaneous flow rate of 1.5 m³ corresponding to the water level on the west side. 3 / s, which is far beyond the flood level standard (>1.0 m). 3 / s).

[0078] The water level on the east side is normal, with a flow rate of only 0.01 m³. 3 / s.

[0079] System response and actions: Status judgment: The control module determines that the first direction (west side) has reached the water passage condition.

[0080] Airbag control: All water-passing airbags in the first direction (west side) are closed. This creates a robust, integrated water-retaining structure between the filling and sedimentation zones on the west side, guiding floodwaters eastward.

[0081] Deploy all water-passing airbags in the second direction (east side). This provides a low-resistance channel for the surging floodwaters, greatly reducing resistance in the east direction and preventing the upstream water level from rising too quickly.

[0082] System operating modes: After primary sedimentation in the western sedimentation zone, the floodwaters are discharged directly through the airbag channel opened on the eastern side, with purification function being secondary for the time being.

[0083] In this state, the water flow velocity is extremely high, and the actual hydraulic residence time is far less than the preset 2 hours, but flood control safety is ensured.

[0084] Example 2: When the water levels on both the east and west sides have not reached the flood level, the river flows from west to east.

[0085] The system detected a current instantaneous flow rate of 0.02 m³ / s. 3 / s.

[0086] System response and actions: Status judgment: The control module determines that the water passage conditions have not been met in either direction.

[0087] Traffic flow assessment: Current traffic is 0.02 m. 3 / s is below the lower limit of the rated flow range (0.03 m³ / s). 3 / s).

[0088] Airbag control (executing low-flow optimization logic): The flow diversion module closes all water-passing airbags (i.e., the airbags on both the east and west sides are in the closed state).

[0089] System working mode and principle: When all the airbags are closed, the water flow must fall step by step through the "stepped unit" formed by the packing modules and airbags, resulting in the narrowest flow cross section and the most tortuous path.

[0090] This design artificially increases water flow resistance and improves water flow velocity, preventing water flow stagnation, excessive sediment accumulation on the filler surface, and anaerobic fermentation of organic matter under low flow conditions.

[0091] At the same time, the cascading water phenomenon brings about an aeration and oxygenation effect, which is conducive to the growth of aerobic microorganisms.

[0092] At this point, the actual hydraulic residence time is 300 m. 3 / 0.02 m 3 / s = 15000 seconds ≈ 4.2 hours, exceeding the preset duration, achieving deep purification.

[0093] Specifically, the flow guiding module is also equipped with several flow guiding plates arranged in the same direction as the stepped unit; For a single deflector When the water-passing airbag corresponding to the baffle opens, the baffle covers the corresponding stepped unit; The water-passing airbag corresponding to the response deflector closes, and the direction of the deflector is perpendicular to the horizontal plane.

[0094] By setting up a flow guiding module, the system uses airbags and guide plates to jointly control the water flow speed and block the filling area, thus avoiding the failure of the weir to work properly due to changes in water volume and water level, and effectively improving the stability of the system.

[0095] Specifically, it also includes a control module that, in response to water levels exceeding the rated flow range but not reaching the rated flow, issues a blockage alarm. When the response control module issues a blockage alarm, each flow guide module activates its respective water-passing airbag, and the water-passing weir system stops filtration.

[0096] Specifically, if the water level difference between any direction and the opposite direction is not greater than the preset water level difference, the control module controls each flow guiding module in that direction that is lower than the opposite water level to open the corresponding water-passing airbag to avoid clogging the corresponding packing module.

[0097] When the bidirectional water level difference is small, the airbag of the flow guiding module in the lower position is automatically activated to balance the water volume and flow rate, preventing either side from failing to complete the work effectively. This effectively reduces the mechanical fatigue of the weir and extends the system life, thereby effectively improving the stability of the system.

[0098] The sedimentation zone is equipped with a frame that floats with the water level. No matter how high the flood level is, the aquatic plants can always float near the water surface, effectively absorbing nutrients such as nitrogen and phosphorus in the water and further consolidating the purification effect.

[0099] Please see Figure 4 As shown, it is a schematic diagram of the flow guide plate setting of the weir in an embodiment of the present invention. In the figure, when the water flow direction 4 flows from right to left as shown in the figure, the stepped unit starts to participate in the aeration work, the flow guide module 3 is closed, and the water-passing airbag 1 and the flow guide plate 2 are stored in the storage compartment below the flow guide module 3.

[0100] Please see Figure 5As shown, this is a schematic diagram of the opening of the water-passing weir guide plate and water-passing airbag in an embodiment of the present invention. In the figure, when the water flow direction 4 flows from left to right as shown in the figure, the guide module 3 is activated and controls the water-passing airbag 1 to inflate and cover the corresponding step unit. At the same time, the guide plate 2 is erected on the nearest step. In this setting, the water-passing airbag 1 should be set as a flat cuboid or an irregularly shaped structure that matches the surface of the step unit to ensure that it can cover the step flatly after inflation. It can be made of the following materials: Inner lining: thermoplastic polyurethane (TPU) or chlorinated butyl rubber with excellent air tightness.

[0101] Reinforcing layer: High-strength polyester or aramid fiber fabric, providing tensile strength and tear resistance.

[0102] Outer protective layer: Abrasion-resistant and UV-resistant coating (such as PVC or polyurea coating).

[0103] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0104] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A composite ecological weir system, comprising a sedimentation zone for settling suspended solids in water flow, and several filler zones for filtration; Its features are, Its water flow direction is set opposite to each other, and is set as a first direction and a second direction, as well as a first filler area and a second filler area corresponding to the water inlet direction; Each packing area is equipped with several first water-passing airbags and several second water-passing airbags; When the water flow conditions are met in any direction, the water-passing weir will open each of the oppositely arranged water-passing airbags and allow the water to flow through in that direction; In response to water flow from any direction, each corresponding water-passing airbag closes. The response indicates that the water passage conditions have been met in all directions, and all water passage airbags are closed. The water passage condition is that the water level in any direction reaches the flood level.

2. The composite ecological weir system according to claim 1, characterized in that, For a single water flow direction, the corresponding sedimentation zone is located in front of the packing zone; The packing area is composed of several packing modules; When the water-passing airbag is closed, the packing modules corresponding to each packing area and the water-passing airbag form a corresponding stepped unit. A single stepped unit includes at least one packing module and one sedimentation module, and the stepped units are arranged sequentially from high to low along the corresponding water flow direction.

3. The composite ecological weir system according to claim 2, characterized in that, The packing module is rectangular, and its corresponding water-passing airbag is disposed on the upper surface of the sedimentation module; When the water-passing airbag is opened, it covers the corresponding sedimentation module and packing module.

4. The composite ecological weir system according to claim 3, characterized in that, For a single packing zone, its width is set to the preset duration for which the water flow stays when passing through the packing zone; The preset duration is related to the material of the filler.

5. The composite ecological weir system according to claim 2, characterized in that, The sedimentation zone is provided with several inlets and outlets, as well as several inclined plates corresponding to each inlet. For each inlet corresponding to a single direction, the corresponding inclined plate is set at a preset angle and in the corresponding direction to settle suspended solids in the water flow. The outlet is located at the bottom of the sedimentation zone.

6. The composite ecological weir system according to claim 4 or 5, characterized in that, The bottom of each sedimentation module corresponding to the packing area is connected to the sedimentation area to collect the sediment after sedimentation to the corresponding position.

7. The composite ecological weir system according to claim 1, characterized in that, The weir system also includes several flow guiding modules that are configured together with the water-passing airbags to control the opening or closing of each water-passing airbag and to adjust the water flow speed of the weir. When the water passage condition is met in any direction, the corresponding flow guiding module controls the corresponding water passage airbag to close and opens the water passage airbag in the opposite direction to reduce the resistance in that direction. If the water flow conditions are not met in any direction, the flow guiding module controls the opening or closing of each water-passing airbag according to the corresponding water level. For water levels that do not reach the rated flow range, the flow guiding module closes each water-passing airbag to increase the water flow velocity; For water levels exceeding the rated flow range, the flow guiding module activates the corresponding water-passing airbags to reduce the water flow velocity. The rated flow rate is proportional to the preset duration.

8. The composite ecological weir system according to any one of claims 4, 6, or 7, characterized in that, The flow guiding module is also equipped with several flow guiding plates arranged in the same direction as the stepped unit; For a single deflector When the water-passing airbag corresponding to the baffle opens, the baffle covers the corresponding stepped unit; The water-passing airbag corresponding to the response deflector closes, and the direction of the deflector is perpendicular to the horizontal plane.

9. The composite ecological weir system according to claim 8, characterized in that, It also includes a control module that, in response to a water level exceeding the rated flow range but not reaching the rated flow, issues a blockage alarm. When the response control module issues a blockage alarm, each flow guiding module activates its respective water-passing airbag, and the water-passing weir system stops filtering.

10. The composite ecological weir system according to claim 9, characterized in that, If the water level difference between any direction and the opposite direction is not greater than a preset water level difference, the control module controls each flow guiding module corresponding to the direction with a water level lower than the opposite direction to open the corresponding water-passing airbag.

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