Modular passive flow control intelligent ecological purification device

Abstract

The application discloses a modular passive flow control intelligent ecological purification device, which comprises a flow guide box body, a purification box body and a shunt box body. The flow guide box bodies are arranged at intervals in the same direction, the purification box bodies are symmetrically arranged on both sides of each flow guide box body, and the shunt box body is located between adjacent flow guide box bodies. The purification box body is provided with a water inlet hole and a water outlet hole, and the water outlet hole is communicated with the flow guide box body. A flow guide structure is arranged in the flow guide box body to guide water into the shunt box body. The shunt box body is provided with a shunt cavity and a buffer cavity. The shunt cavity is communicated with the flow guide box body, the buffer cavity is divided into a first buffer cavity and a second buffer cavity, and the two cavities are symmetrically arranged on both sides of the shunt cavity. The first buffer cavity and the second buffer cavity are correspondingly communicated with water inlet holes of two subsequent purification box bodies. A shunt mechanism is arranged in the shunt cavity to control water flowing into the first buffer cavity and / or the second buffer cavity. The application can reduce operation and maintenance costs and construction difficulty, improve the utilization efficiency of the filler, and ensure high reliability and operation accuracy.

Description

Technical Field

[0001] This invention relates to the field of environmental governance technology, specifically to a modular passive flow control intelligent ecological purification device. Background Technology

[0002] Currently, the mainstream solutions for large-scale river and wetland management mostly employ buried constructed wetlands or fixed purification ponds. These systems typically involve constructing trenches through underground excavation, laying perforated collection pipes and multi-layered graded filler material inside, with a vegetation system often integrated on the surface to enhance the aesthetics. Water enters the system by gravity flow or is driven by a booster pump, where it is purified through the physical interception, chemical adsorption, and microbial degradation of the filler material. This is a commonly used method for treating non-point source pollution and ecological restoration.

[0003] However, traditional solutions have significant limitations in practical applications: First, due to limitations in hydraulic retention time and gravity drive, extremely deep burial is often required in flat areas, resulting in very high initial civil engineering investment and construction costs. Second, the underground structure makes subsequent operation and maintenance extremely difficult; once the filler becomes saturated or the pipeline becomes blocked, large-scale excavation is often required for repairs, which not only incurs high maintenance costs but also damages the existing ecological landscape. Furthermore, traditional solutions rely on mechanical one-way valves to prevent backflow, which are prone to jamming and failure in harsh water conditions containing silt and biofilm, and cannot flexibly adjust the purification strategy according to the pollution level. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of traditional buried systems used in large-scale river and wetland management by providing a modular passive flow control intelligent ecological purification device. This device can significantly reduce the operation and maintenance costs and construction difficulty of ecological engineering, greatly improve the utilization efficiency of fillers, and ensure high reliability and operational accuracy under extreme water quality conditions.

[0005] This invention is achieved through the following technical solution: This invention provides a modular passive flow control intelligent ecological purification device, including a flow guiding box, a purification box, and a diversion box; the flow guiding boxes are arranged at intervals along the same direction, the purification boxes are symmetrically arranged on both sides of each flow guiding box, and the diversion boxes are located between adjacent flow guiding boxes; the purification box has a water inlet and a water outlet, and the water outlet communicates with the flow guiding box; the flow guiding box is provided with a flow guiding structure for guiding water into the diversion box; The diversion box has a diversion cavity and a buffer cavity. The diversion cavity is connected to the flow guide box. The buffer cavity is divided into a first buffer cavity and a second buffer cavity, which are symmetrically arranged on both sides of the diversion cavity. The first buffer cavity and the second buffer cavity are connected to the water inlet holes of the two subsequent purification boxes. The diversion cavity is provided with a diversion mechanism to regulate the flow of water entering the diversion cavity into the first buffer cavity and / or the second buffer cavity.

[0006] As a further embodiment of the present invention, the purification chamber is provided with a plurality of partition plates, the partition plates being arc-shaped and arranged in parallel intervals to guide the inlet water to the outlet water hole, and the purification chamber is filled with water purification filler.

[0007] As a further embodiment of the present invention, the water inlet holes are distributed on one end of the purification box along the arrangement direction of the guide box, and the distribution density of the water inlet holes gradually increases along the direction away from the guide box; the water outlet holes are distributed on the side of the purification box adjacent to the guide box, and the distribution density of the water outlet holes gradually increases along the guiding direction of the guide box.

[0008] As a further embodiment of the present invention, the flow guiding structure includes a central partition and inclined partitions. The central partition is arranged along the flow guiding direction and divides the flow guiding box into two flow guiding cavities that are correspondingly connected to the two purification boxes on both sides. Multiple flow channels are formed in each flow guiding cavity by multiple inclined partitions arranged in parallel. A first flow guiding plate and a second flow guiding plate are alternately arranged in each flow channel.

[0009] As a further embodiment of the present invention, the first guide plates are arranged in a figure-eight pattern in pairs, and there is no gap between the first guide plates and the top or bottom wall of the flow channel; the second guide plates are arranged in a figure-eight pattern in pairs, and there is a gap between the second guide plates and the top or bottom wall of the flow channel.

[0010] As a further embodiment of the present invention, the inclined baffle is arranged at an angle relative to the bottom of the flow guide box and forms a certain water flow slope along the flow direction; one side of the inclined baffle, the first flow guide plate and the second flow guide plate are all fixedly connected to the middle baffle.

[0011] As a further embodiment of the present invention, the water outlet of the flow guide box is provided with two water outlets, which are respectively connected to the outlets of the flow channels formed in the left and right flow guide cavities inside the flow guide box.

[0012] As a further embodiment of the present invention, the inner wall of the flow guide box is provided with a vertical mounting slot, which is adapted to both ends and the bottom of the middle partition plate so that the entire flow guide structure can be plugged into the flow guide box.

[0013] As a further embodiment of the present invention, the flow-dividing cavity has two flow-dividing chambers that are correspondingly connected to the two flow-guiding chambers in the flow-guiding box. The two flow-dividing chambers are respectively opened with communication ports that are connected to the first buffer chamber and the second buffer chamber, and there is also a communication port between the two flow-dividing chambers. The flow-dividing mechanism is used to control the opening and closing state of the three communication ports.

[0014] As a further embodiment of the present invention, the diversion mechanism includes a rotating shaft, a valve plate, and a driving component. There are two rotating shafts, each disposed in the diversion chamber. Each rotating shaft is provided with the valve plate. The driving component is used to drive the rotating shaft to rotate, thereby causing the valve plate to rotate and realize the opening and closing of the communication port.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This invention enables modular assembly and use through the diversion box, purification box, and flow distribution box, significantly reducing the operation and maintenance costs and construction difficulty of ecological engineering. Since each module can be removed and replaced as a whole, excavation-free operation for wetland maintenance is achieved, which not only avoids damage to the surrounding landscape, but also solves the long-standing problems of easy clogging and difficult treatment of traditional buried system fillers through the "zoning management and regular quick replacement" mode, greatly improving the utilization efficiency of fillers. 2. Through the special design of the flow guiding structure inside the flow guiding box, the water entering the flow guiding box can be unidirectionally guided into the diversion box. This flow guiding structure completely eliminates the risk of jamming when using mechanical valves in a sewage environment, realizes unidirectional passive flow control that is easy to maintain later, and ensures high reliability and operational accuracy under extreme water quality conditions. 3. By setting up a diversion box, the present invention can select which side of the diversion box to guide water into the purification box based on the performance of the water purification packing in the subsequent purification box. This not only allows for flexible adjustment of the purification strategy in response to seasonal pollution fluctuations, but also makes it easy to isolate a purification box when it becomes saturated or blocked. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the modular passive flow control smart ecological purification device of the present invention; Figure 2 This is a schematic diagram showing the arrangement of the purification device in this invention on the embankment. Figure 3 This is a three-dimensional schematic diagram of the purification device in this invention; Figure 4 This is a schematic diagram of the interior of the purification chamber in this invention; Figure 5 This is an exploded view of the flow guide box in this invention; Figure 6 This is a lateral schematic diagram of the flow guiding structure in this invention; Figure 7 This is a partial schematic diagram of the flow guiding structure in this invention; Figure 8 This is a schematic diagram of the flow guiding structure in the downstream state of the present invention; Figure 9 This is a schematic diagram of the flow guiding structure in the reverse flow state in this invention; Figure 10 This is a schematic diagram of the flow divider box in this invention; Figure 11 This is a schematic diagram of the diversion mechanism in this invention.

[0017] The attached diagram shows the markings and corresponding component names: 1-Flow guide box, 11-Middle partition, 12-Inclined partition, 13-Flow channel, 14-First flow guide plate, 15-Second flow guide plate, 16-Outlet, 17-Mounting slot, 2-Purification box, 21-Inlet, 22-Outlet, 23-Partition plate, 3-Diversion box, 31-Diversion chamber, 32-First buffer chamber, 33-Second buffer chamber, 34-Connecting port, 35-Rotating shaft, 36-Valve plate, 37-Drive component. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0020] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0023] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0024] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces), unless otherwise explicitly specified.

[0025] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] Please refer to Figures 1 to 11This application provides a modular passive flow control smart ecological purification device, comprising a flow guide box 1, a purification box 2, and a flow divider box 3; the flow guide boxes 1 are arranged at intervals along the same direction, the purification boxes 2 are symmetrically arranged on both sides of each flow guide box 1, and the flow divider box 3 is located between adjacent flow guide boxes 1; the purification box 2 has a water inlet 21 and a water outlet 22, the water outlet 22 being connected to the flow guide box 1; the flow guide box 1 is provided with a flow guiding structure for guiding water into the flow divider box 3; The diversion box 3 has a diversion cavity and a buffer cavity. The diversion cavity is connected to the guide box 1. The buffer cavity is divided into a first buffer cavity 32 and a second buffer cavity 33, which are symmetrically arranged on both sides of the diversion cavity. The first buffer cavity 32 and the second buffer cavity 33 are connected to the water inlet 21 of the two subsequent purification boxes 2. The diversion cavity is provided with a diversion mechanism to regulate the flow of water entering the diversion cavity into the first buffer cavity 32 and / or the second buffer cavity 33.

[0028] The aforementioned flow guide box 1, purification box 2, and diversion box 3 can all be designed in a cuboid shape, and the height of the three boxes can be designed to be the same. The flow guide box 1 and purification box 2 have the same length along the flow direction, and after the two purification boxes 2 are arranged on both sides of the flow guide box 1, their ends along the flow direction are flush. The diversion box 3 is arranged between adjacent flow guide boxes 1, and the width of the diversion box 3 matches the spacing between adjacent flow guide boxes 1, and its length ends are flush with the sides of the purification boxes 2 on the left and right sides. The modules using the above box structure can be modularly arranged during construction, and also facilitate the removal of certain modules for maintenance later.

[0029] It should be noted that the aforementioned flow guide box 1 and diversion box 3 may not have side plates on either side of their width. That is, the flow guide box 1 does not have a side plate on the side adjacent to the purification box 2, and the diversion box 3 does not have a side plate on the side adjacent to the next-level purification box 2. It is understood that corresponding parts of the two boxes may also have side plates, but appropriate water passage holes need to be provided at the water passage locations.

[0030] To facilitate future maintenance, the top of the three types of enclosures can be designed as a removable cover. When maintenance is required on the internal structure of each module, the cover can be removed. Alternatively, the entire module enclosure can be pulled out for further processing, increasing maintenance flexibility.

[0031] The purification device in this application can be placed on a sloping embankment. Water enters through the purification tank 2, is purified by the internal packing material, and then flows into the guide tank 1. The guide structure then directs the water into the diversion tank 3. The diversion mechanism can then selectively direct the water into the purification tanks 2 on either side of the guide tank 1. Throughout the process, the water continuously flows downwards along the direction of the guide tank 1, forming a guiding direction.

[0032] The purification device can be modularly assembled and used through the flow guide box 1, purification box 2 and diversion box 3, which significantly reduces the operation and maintenance cost and construction difficulty of ecological engineering. Since each module can be removed and replaced as a whole, it realizes the excavation-free operation of wetland maintenance, which not only avoids damage to the surrounding landscape, but also solves the long-standing problems of easy blockage and difficult treatment of traditional buried system fillers through the "zoning management and regular quick replacement" mode, and can greatly improve the utilization efficiency of fillers.

[0033] Meanwhile, through a special design of the flow guiding structure within the flow guiding box 1, water entering the flow guiding box 1 can be unidirectionally guided into the diversion box 3. This flow guiding structure completely eliminates easily damaged mechanical valves such as springs and valve cores, thoroughly eliminating the risk of jamming caused by mechanical valves in wastewater environments. It achieves unidirectional passive flow control that is easy to maintain later, ensuring high reliability and operational accuracy under extreme water quality conditions. Furthermore, because the purification boxes 2 are located on both sides of the flow guiding box 1, this layout not only increases the water treatment load per unit time through parallel processing but also effectively reduces the flow velocity within a single box, providing a stable flow field environment for subsequent physical interception and biological purification.

[0034] Furthermore, by setting a diversion box 3 at the water outlet of the diversion box 1, the diversion mechanism in the diversion chamber can be used to regulate the flow of water into the first buffer chamber 32 and / or the second buffer chamber 33. This allows the selection of which side of the diversion box 1 to guide water into the purification box 2 based on the performance of the water purification packing in the subsequent purification box 2. This not only allows for flexible adjustment of the purification strategy in response to seasonal pollution fluctuations, but also enables convenient isolation and shielding of a purification box 2 when it becomes saturated or clogged by selecting and controlling the flow of water.

[0035] According to some embodiments of this application, the water inlet 21 of the purification box 2 is distributed at one end of the purification box 2 along the arrangement direction of the guide box 1, and is used to introduce water into the purification box 2; the water outlet 22 of the purification box 2 is distributed on the side of the purification box 2 adjacent to the guide box 1, and is used to introduce water into the guide box 1.

[0036] According to some embodiments of this application, the purification chamber 2 is provided with a plurality of partition plates 23. The partition plates 23 are arc-shaped and arranged parallel to each other to guide the inlet water to the outlet hole 22. The purification chamber 2 is filled with purified water filler. This application illustrates that three partition plates 23 are arranged inside the chamber. These three partition plates 23 form a water flow channel between themselves and the inner wall of the chamber. The partition plates 23 are arc-shaped, which can guide the water to one side of the outlet hole 22 and extend the water flow path.

[0037] According to some embodiments of this application, the distribution density of the water inlet holes 21 gradually increases along the direction away from the flow guide box 1, and the distribution density of the water outlet holes 22 gradually increases along the flow guiding direction of the flow guide box 1. By optimizing the distribution density of the water inlet holes 21 and the water outlet holes 22, an asymmetric water distribution structure is formed in the purification box 2.

[0038] The purification chamber 2 achieves deep topological optimization of the water flow path through the synergistic effect of its asymmetric water distribution structure and the partition plate 23 structure. Utilizing the pressure gradient generated by the non-uniform layout of the inlet holes 21 at the inlet end, it forcibly guides the inlet water to the far end of the chamber, far from the outlet end, thus pre-setting the longest starting point of the streamline from the source and effectively overcoming the physical inertia of water in open space that tends to seek the shortest path. Subsequently, the fluid is blocked by the staggered flow-guiding partition plates 23 within the purification chamber, forcing its flow vector to undergo continuous spatial displacement, forming a highly meandering "S-shaped" flow path. This transforms the simple single-dimensional flow into a complex three-dimensional matrix diffusion, greatly increasing the effective hydraulic stroke within a limited volume. The local turbulence and velocity gradient changes induced by this process further enhance molecular diffusion and lateral mixing effects, fundamentally eliminating the "short-flow" phenomenon caused by uneven porosity of the packing material. This ensures that the water can uniformly wet the entire surface and deeply penetrate to the active sites of all functional packing materials, achieving an extreme improvement in purification efficiency and packing material utilization.

[0039] The purification chamber 2, through extreme optimization of the water flow path and "path increment" design, achieves a multiple-fold increase in effective hydraulic retention time without increasing the physical volume of the chamber. This provides ample time for the full retention of recalcitrant organic matter, the biodegradation of ammonia nitrogen, and the adsorption reaction of total phosphorus, significantly enhancing the removal depth of complex pollutants. Simultaneously, the baffled flow path completely covers the geometric dead corners within the chamber, thoroughly solving the technical bottlenecks of "edge dead zones" and low packing utilization rates commonly found in traditional buried purification devices. Its full-area flow field coverage ensures the uniformity of nutrient supply to the biofilm within the packing layer, significantly improving the system's resistance to shock loads and biochemical redundancy in the face of fluctuations in influent water quality. Furthermore, the optimized flow path, through the rectifying effect of the partition plate 23, maintains a relatively stable laminar-turbulent alternating state as the water penetrates the packing layer. This controlled flow pattern maintains biofilm activity while utilizing fluid scouring to carry away fine suspended solids, effectively slowing down physical sedimentation and significantly extending the overall service life and maintenance cycle of the purification unit.

[0040] According to some embodiments of this application, the flow guiding structure includes a central partition 11 and inclined partitions 12. The central partition 11 is arranged along the flow guiding direction and divides the flow guiding box 1 into two flow guiding cavities corresponding to and communicating with the two purification boxes 2 on both sides. Multiple flow channels 13 are formed in each flow guiding cavity by multiple inclined partitions 12 arranged in parallel. A first flow guiding plate 14 and a second flow guiding plate 15 are alternately arranged in each flow channel 13. The central partition 11 is arranged in the middle part of the width direction of the flow guiding box 1, dividing the flow guiding box 1 into two flow guiding cavities on the left and right. Multiple flow channels 13 are formed in each flow guiding cavity by multiple inclined partitions 12. These flow channels 13 are arranged sequentially along the height direction of the box. The cross-section of the flow channel 13 is approximately rectangular, with the upper and lower sides being the walls of the inclined partitions 12, and one side of the left and right sides being the wall of the central partition 11 and the other side being the side wall of the purification box 2.

[0041] According to some embodiments of this application, the first guide plates 14 are arranged in a figure-eight pattern in pairs, and there is no gap between the first guide plates 14 and the top or bottom wall of the flow channel 13; the second guide plates 15 are arranged in a figure-eight pattern in pairs, and there is a gap between the second guide plates 15 and the top or bottom wall of the flow channel 13. The main flow is formed between the two first guide plates 14 in each group and between the two second guide plates 15 in each group, and the gap between the two second guide plates 15 in each group and the top or bottom wall of the flow channel 13 forms a side flow.

[0042] When the system pressure is normal, the water in channel 13 is in a downstream state, meaning that when the water flows downstream, the direction of the lateral flow formed in channel 13 is the same as the direction of the main flow, such as... Figure 8As shown. When the pressure fluctuation at the end of the system creates a backflow trend, that is, when the water flows upstream, the lateral flow formed in channel 13 is approximately opposite to the mainstream direction, which will hinder the upstream flow of the mainstream. In other words, when the countercurrent water enters the lateral flow, it will be guided back to the mainstream, forming a nearly 180-degree head-on collision with the forward backflow, such as... Figure 9 As shown. This collision generates a strong vortex region, converting the fluid's kinetic energy into internal energy and thus creating an invisible "fluid wall" within the flow channel 13. This passive flow control method utilizes the fluid's own energy to suppress its reverse movement, completely avoiding the clogging and jamming failures of mechanical valves in environments with high sediment and biomass.

[0043] Traditional mechanical check valves are highly susceptible to jamming of the mechanical shaft 35 due to solid particle embedding or damage to the sealing surface due to biofilm buildup in harsh water quality environments such as rivers and wetlands with high sediment content and abundant biofilm. This application, through a passive design that "controls flow by shape," eliminates all moving mechanical parts, eradicating the risk of mechanical fatigue and structural jamming at the physical level, and significantly improving operational stability and structural lifespan in extreme service environments. The inherent properties of the flow channel geometry within the guide box 1 enable self-regulation of fluid momentum, allowing for instantaneous hydraulic response to changes in head pressure differential without external energy input (passive) or sensor closed-loop feedback. This mechanism achieves precise backflow limitation while reaching an environmentally friendly "zero-energy" operation goal, greatly reducing the device's power dependence and maintenance load throughout its lifecycle, demonstrating significant engineering economics and technological advancement.

[0044] According to some embodiments of this application, the inclined baffle 12 is arranged at an inclination relative to the bottom of the flow guide box 1 and forms a certain water flow slope along the flow direction, so that the water flows down during the flow guide; one side of the inclined baffle 12, the first flow guide plate 14 and the second flow guide plate 15 are all fixedly connected to the middle baffle 11, so that the flow guide structure forms a whole.

[0045] According to some embodiments of this application, the water outlet of the flow guide box 1 is provided with two outlets 16, which are respectively connected to the outlets of the flow channels 13 formed in the left and right flow guide cavities inside the flow guide box 1. This design divides the flow into two outlets 16, left and right, with the partition plate 11 as the boundary. The flow channels 13 in the left flow guide cavity are connected to the outlets 16 on the left, and the flow channels 13 in the right flow guide cavity are connected to the outlets 16 on the right.

[0046] According to some embodiments of this application, the inner wall of the flow guide box 1 is provided with a vertical mounting slot 17, which is adapted to both ends and the bottom of the middle partition 11 so that the entire flow guide structure can be plugged into the flow guide box 1. This makes it easy to pull out the entire flow guide structure in the flow guide box 1 for direct cleaning or replacement.

[0047] According to some embodiments of this application, the diversion chamber has two diversion chambers 31 that communicate with the two diversion chambers in the diversion box 1. Each of the two diversion chambers 31 has a corresponding connecting port 34 that communicates with the first buffer chamber 32 and the second buffer chamber 33. A connecting port 34 is also provided between the two diversion chambers 31. The diversion mechanism is used to control the opening and closing states of the three connecting ports 34. By setting a diversion mechanism within the diversion box 3, water can be selected to be directed into which side of the diversion box 1's purification box 2 based on the performance of the water purification packing material in the subsequent purification box 2. This not only allows for flexible adjustment of the purification strategy to address seasonal pollution fluctuations but also facilitates the isolation of a purification box 2 when it becomes saturated or clogged.

[0048] Specifically, the two outlets 16 at the outlet end of the flow guide box 1 are connected to the two diversion chambers 31 in the diversion cavity. The diversion chamber 31 on the left is connected to the first buffer chamber 32 through a connecting port 34, and the diversion chamber 31 on the right is connected to the second buffer chamber 33 through another connecting port 34. In this application, the three connecting ports 34 can be designed in the same straight direction.

[0049] According to some embodiments of this application, the diversion mechanism includes a rotating shaft 35, a valve plate 36, and a driving component 37. There are two rotating shafts 35, each located within the diversion chamber 31. Each rotating shaft 35 is equipped with the valve plate 36. The driving component 37 drives the rotating shaft 35 to rotate, thereby causing the valve plate 36 to rotate synchronously and opening / closing the connecting port 34. The valve plate 36 can be designed as an arc-shaped plate structure. The rotating shaft 35 is driven to rotate by the driving component 37 (e.g., a motor), which in turn drives the valve plate 36 to rotate synchronously. By adjusting the position of the valve plate 36 relative to the connecting port 34 (e.g., the valve plate 36 blocks the connecting port 34 or is offset from it), the opening and closing of the three connecting ports 34 can be controlled.

[0050] For example, if both valve plates 36 are rotated to the middle connecting port 34, the water entering the left diversion chamber 31 will enter the first buffer chamber 32 and then flow into the next-level left-side purification chamber 2. If the valve plate 36 in the left diversion chamber 31 is rotated to close the left connecting port 34, and the valve plate 36 in the right diversion chamber 31 is rotated to be offset from the middle connecting port 34 and the right connecting port 34, that is, the middle connecting port 34 and the right connecting port 34 are opened, the water entering the left diversion chamber 31 will enter the second buffer chamber 33 and then flow into the next-level right-side purification chamber 2, thus bypassing the next-level left-side purification chamber 2. Similarly, it can also bypass the next-level right-side purification chamber 2.

[0051] It should be noted that the aforementioned drive component 37 can automatically adjust the direction of the valve plate 36 according to the operating status of the purification module. Specifically, this can be achieved by arranging sensor arrays at the inlet and outlet of the purification module to perform periodic health checks on each purification module. For example, the system can identify the real-time status of the packing material by comparing the physical resistance (pressure drop) and purification efficiency (water quality difference) of each module in real time, combined with a preset algorithm. Once the periodic check detects that the performance of a purification module has dropped to a preset threshold (such as severe blockage or packing saturation), the system will immediately execute an automatic scheduling strategy: by controlling the direction of the valve plate 36, it will actively cut off the inlet branch of the faulty module, forcing the water flow through other normally operating purification modules or emergency detour channels. This dynamic isolation mechanism ensures that the faulty purification module is immediately "sealed" at the moment of failure, and the branch will not be reopened until the maintenance personnel have replaced the faulty module, restoring the original water circuit layout.

[0052] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. 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 modular passive flow control intelligent ecological purification device, characterized in that, It includes a flow guide box, a purification box, and a diversion box; the flow guide boxes are arranged at intervals in the same direction, the purification boxes are symmetrically arranged on both sides of each flow guide box, and the diversion boxes are located between adjacent flow guide boxes; the purification box has a water inlet and a water outlet, and the water outlet communicates with the flow guide box; the flow guide box is provided with a flow guiding structure for guiding water into the diversion box; The diversion box has a diversion cavity and a buffer cavity. The diversion cavity is connected to the flow guide box. The buffer cavity is divided into a first buffer cavity and a second buffer cavity, which are symmetrically arranged on both sides of the diversion cavity. The first buffer cavity and the second buffer cavity are connected to the water inlet holes of the two subsequent purification boxes. The diversion cavity is provided with a diversion mechanism to regulate the flow of water entering the diversion cavity into the first buffer cavity and / or the second buffer cavity.

2. The modular passive flow control intelligent ecological purification device according to claim 1, characterized in that, The purification chamber is equipped with multiple partitions, which are arc-shaped and arranged in parallel intervals to guide the inlet water to the outlet. The purification chamber is filled with water purification filler.

3. The modular passive flow control intelligent ecological purification device according to claim 2, characterized in that, The water inlet holes are distributed on one end of the purification chamber along the direction of the flow guide box, and the distribution density of the water inlet holes gradually increases along the direction away from the flow guide box; the water outlet holes are distributed on the side of the purification chamber adjacent to the flow guide box, and the distribution density of the water outlet holes gradually increases along the flow guide direction of the flow guide box.

4. The modular passive flow control intelligent ecological purification device according to claim 1, characterized in that, The flow guiding structure includes a central partition and inclined partitions. The central partition is arranged along the flow guiding direction and divides the flow guiding box into two flow guiding cavities that are connected to the two purification boxes on both sides. Multiple flow channels are formed in each flow guiding cavity by multiple inclined partitions arranged in parallel. A first flow guiding plate and a second flow guiding plate are alternately arranged in each flow channel.

5. The modular passive flow control intelligent ecological purification device according to claim 4, characterized in that, The first guide vanes are arranged in a figure-eight pattern in pairs, and there is no gap between the first guide vanes and the top or bottom wall of the flow channel; the second guide vanes are arranged in a figure-eight pattern in pairs, and there is a gap between the second guide vanes and the top or bottom wall of the flow channel.

6. The modular passive flow control intelligent ecological purification device according to claim 4, characterized in that, The inclined baffle is arranged at an angle relative to the bottom of the flow guide box and forms a certain water flow slope along the flow direction; one side of the inclined baffle, the first flow guide plate and the second flow guide plate are all fixedly connected to the middle baffle.

7. The modular passive flow control intelligent ecological purification device according to claim 4, characterized in that, The water outlet of the flow guide box is provided with two outlets, which are respectively connected to the outlets of the flow channels formed in the left and right flow guide cavities inside the flow guide box.

8. The modular passive flow control intelligent ecological purification device according to claim 4, characterized in that, The inner wall of the flow guide box is provided with a vertical mounting slot, which is adapted to both ends and the bottom of the middle partition plate so that the entire flow guide structure can be plugged into the flow guide box.

9. The modular passive flow control intelligent ecological purification device according to claim 4, characterized in that, The diversion chamber has two diversion chambers that are connected to the two diversion chambers in the diversion box. The two diversion chambers have corresponding openings that are connected to the first buffer chamber and the second buffer chamber. There is also a connection between the two diversion chambers. The diversion mechanism is used to control the opening and closing state of the three connection ports.

10. The modular passive flow control intelligent ecological purification device according to claim 9, characterized in that, The diversion mechanism includes a rotating shaft, a valve plate, and a driving component. There are two rotating shafts, each located in the diversion chamber. Each rotating shaft is equipped with the valve plate. The driving component is used to drive the rotating shaft to rotate, thereby causing the valve plate to rotate and opening or closing the connection port.

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