Urban water landscape ecological cycle and intelligent purification system

Abstract

The application relates to the technical field of urban water body ecological treatment, and discloses a city water body landscape ecological circulation and intelligent purification system, which comprises a modular wetland circulation treatment module, a water quality intelligent monitoring and circulation control module and a rainwater collection and ecological water supplement linkage module; the three modules are linked and cooperated to realize ecological circulation and intelligent purification of city landscape water bodies. The city water body landscape ecological circulation and intelligent purification system is integrated with the three core modules of modular wetland circulation treatment, water quality intelligent monitoring and circulation control and rainwater collection and ecological water supplement linkage, and can comprehensively break through the technical bottlenecks of traditional city landscape water body treatment in aspects of structural innovation, purification efficiency, operation and maintenance mode, water resource utilization and ecological friendliness, and can completely solve the problems of city park water replacement and water consumption, complex artificial wetland maintenance, high filler replacement cost and difficult-to-sustain treatment effect.

Description

Technical Field

[0001] This invention belongs to the field of urban water body ecological governance technology, specifically involving an urban water body landscape ecological cycle and intelligent purification system. Background Technology

[0002] Urban landscape water bodies, as an important component of the urban ecosystem, are widely distributed in public spaces such as urban parks, residential areas, commercial complexes, and municipal squares. They serve multiple functions, including landscaping, microclimate regulation, recreation, and ecological conservation, and are key carriers for improving urban livability and ecological quality. Currently, most urban landscape water bodies in my country are closed or semi-closed slow-flow systems with weak self-purification capacity and long exchange cycles. Coupled with factors such as urban non-point source pollution input, endogenous release from sediment, rainwater runoff inflow, accumulation of leaf litter and humus, and human disturbance, they are highly susceptible to water quality deterioration, eutrophication, algal blooms, and black and odorous conditions, seriously affecting both landscape aesthetics and ecological security.

[0003] Traditional methods for urban landscape water body management and maintenance suffer from numerous intractable technical bottlenecks and practical pain points, making them incompatible with the development needs of modern urban ecological governance and low-carbon water conservation. Specific problems include:

[0004] Water consumption is enormous and operation and maintenance costs are high. The mainstream treatment methods still rely on regular water changes and manual dredging, which require the continuous consumption of large amounts of municipal tap water. This not only results in a serious waste of water resources but also incurs high water bills, transportation, and labor costs, making long-term operation and maintenance difficult. At the same time, frequent water changes can damage the original ecological structure of the water body, leading to repeated fluctuations in water quality and failing to solve the pollution problem at its root.

[0005] Constructed wetland systems are complex to maintain and have poor adaptability. Traditional constructed wetlands employ an integrated, fixed structure. The filling, replacement, and cleaning of the filler material require large-scale excavation and emptying of the pool, resulting in significant construction disturbance, long construction periods, high costs, and potential damage to wetland vegetation and microbial communities. Furthermore, the system cannot flexibly adjust its treatment path according to water quality fluctuations, has weak resistance to shock loads, and lacks adaptability to landscape water bodies of varying pollution levels and sizes.

[0006] The purification unit is prone to failure, making it difficult to maintain the treatment effect. Filter and purification media are mostly integrated, making it impossible to replace individual faulty units. This can easily lead to problems such as localized blockage and overall failure after saturation, resulting in water passing through without effective purification, thus creating "ineffective purification." Furthermore, the lack of real-time water quality monitoring and closed-loop control mechanisms leads to a mismatch between purification intensity and pollution load, resulting in poor stability of effluent water quality.

[0007] In summary, traditional urban landscape water treatment technologies suffer from core defects such as high water consumption, complex operation and maintenance, high cost, short-term effects, and lack of intelligence. There is an urgent need to develop a new treatment system that integrates ecological circulation, intelligent purification, water conservation and low carbon emissions, convenient operation and maintenance, and long-term stability to address the current pain points in urban landscape water treatment and meet the development needs of urban ecological construction and efficient water resource utilization. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides an urban water landscape ecological cycle and intelligent purification system, which solves the problems of huge water resource consumption, high operation and maintenance costs, and complex maintenance and poor adaptability of artificial wetland systems in the background technology.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an urban water landscape ecological cycle and intelligent purification system, comprising: a modular wetland cycle treatment module, a water quality intelligent monitoring and cycle control module, and a rainwater collection and ecological water replenishment linkage module. The three modules work together to achieve the ecological cycle and intelligent purification of urban landscape water bodies. The modular wetland circulation treatment module includes a cross-distributed pool structure. Two sets of diversion components are arranged inside the pool structure. Each set of diversion components is equipped with several filter components and purification components that can be individually plugged in and replaced. The filter components are equipped with layered filter media, and the purification components are equipped with layered purification media. The intelligent water quality monitoring and circulation control module is used to monitor the water condition in real time and transmit the monitoring data to the control unit in real time; according to the changes in water quality, it changes the filtration path of the water in the pool structure. The rainwater collection and ecological water replenishment linkage module is used to collect rainwater from the surrounding area, discharge it into the pool structure, and replenish it according to the hydrological conditions of the landscape water body.

[0010] Preferably, the pool structure includes a sedimentation tank, a filtration tank, a purification tank, and a water storage tank, and the pools are connected by a flow channel. The pool structure is arranged in a grid pattern, and an annular guide channel is provided in the middle of the pool structure. The outer surface of the annular guide channel has openings that communicate with the four pools respectively. The inside of the annular guide channel is provided with four sealing parts for sealing the openings. By pulling out the sealing parts at different positions, the different pools can be connected to each other, thereby changing the water flow path in the different pools. The sedimentation tank is equipped with several sets of overflow components. The two flow-through components are installed inside the filtration tank and the purification tank, respectively. The water storage tank is equipped with a partition to divide the internal space of the water storage tank into a clear water area and a test area; The separator includes a sealed guide frame and several sealed partitions; The sealing guide frame is fixed to the water storage tank. Several sealing partitions are inserted into the sealing guide frame in a stacked manner to separate the clear water area and the test area. By controlling the number of stacked sealing partitions, the water in the test area enters the clear water area for storage when it reaches different heights.

[0011] Preferably, the diversion assembly includes a pipe coil and several diversion cylinders, all of which are detachably fixed to the branch pipes of the pipe coil, so that the water in the branch pipes can enter the diversion cylinders and be treated by the filtration assembly or purification assembly. The top outer surface of the diversion cylinder is fixedly connected to several spray nozzles, which are used to disperse and spray the treated water inside the diversion cylinder to form an oxygenation operation. The bottom of the diversion cylinder is provided with a constriction section, and a valve plate is slidably connected to the constriction section via a guide rod. This valve plate is used to block the flow path of the constriction section, so that after the filter component or purification component is pulled out from inside the diversion cylinder, the valve plate, in conjunction with the water pressure of the branch pipe, can automatically seal the flow.

[0012] Preferably, the filter assembly includes a filter cartridge inserted inside the diverter cylinder for filling with filler material for filtering water. The top and bottom of the filter cartridge are both configured with filter holes, and a cover plate is detachably installed on the top of the filter cartridge, and the cover plate is detachably fixed to the top of the diverter cylinder. The bottom of the filter cartridge is fixedly connected to a pressing part, which is used to press the valve plate downward after the filter cartridge is inserted into the diverter cylinder, so that the valve plate loses its sealing function. The pool structure is equipped with a first circulation pump, which is used to discharge the water after sedimentation treatment in the sedimentation tank into the tube coil located in the filtration tank.

[0013] Preferably, the purification component includes a purification cylinder inserted inside the diversion cylinder for filling with filler material for purifying the water. The top and bottom of the purification cylinder are both configured with filter holes, and a sealing cap is detachably installed on the top of the purification cylinder, and the sealing cap is detachably fixed to the top of the purification cylinder. The purification cylinder is equipped with a transmission unit for controlling the valve plate; A second circulation pump is installed on the pool structure to discharge the filtered water in the filtration pool into the pipe coil located in the purification pool. The second circulation pump has a three-way pipe fixed at its suction end, and the suction end of the three-way pipe is located in the test area of ​​the filter tank and the water storage tank. Both suction ends of the three-way pipe are equipped with control valves, which are used to discharge the purified water back into the purification component for circulation purification according to the water quality in the test area of ​​the water storage tank.

[0014] Preferably, the transmission unit includes a retractable pressing shaft and a spring for downward compression of the pressing shaft; The spring's elastic coefficient is greater than the water pressure exerted by the purification cylinder on the water body. It is used so that after the purification cylinder is inserted into the diverter cylinder, the pressing shaft presses down on the valve plate, causing the valve plate to lose its sealing function and forming normal purification operation. Also, when the pores of the purification cylinder packing are gradually blocked by pollutants, the resistance of water flow through the packing layer gradually increases, and the pressure of the water flow acts directly on the valve plate, causing the pressing shaft to contract and the valve plate to form a seal. This is used to prevent the water body from failing to be purified when the packing inside the purification cylinder becomes saturated and fails.

[0015] Preferably, a tube is fixedly connected inside the purification cylinder, and the pressing shaft is slidably connected to the bottom of the tube using a sealing sleeve. A spring is located inside the tube and is used to press the end of the pressing shaft downward. The tube body has an axially sliding adjustment part inside, and a spring is fixed between the adjustment part and the pressing shaft. The top of the tube body is threaded with an adjustment bolt for adjusting the adjustment part up and down. The adjustment of the adjustment part up and down changes the initial pressure of the spring, thereby adjusting the pressure threshold of the pressing shaft.

[0016] Preferably, the overflow component includes an overflow plate fixed inside the sedimentation tank; The overflow plate is hollow inside, and a notch Q1 is provided at the bottom of the outer side of the overflow plate. When the water level in the sedimentation tank is higher than the overflow plate, the water enters the sedimentation area of ​​the next stage through the hollow part of the overflow plate and the notch Q1. An extension Q2 is provided at the top of the outer side of the overflow plate to prevent the water from directly entering the sedimentation area of ​​the next stage when the water level is higher than the overflow plate. The overflow plate is L-shaped and is used to expand or contract the area between the initial sedimentation zone and the final sedimentation zone, so that the sediment inside the sedimentation tank can accumulate quickly and the clear water can be separated quickly after sedimentation.

[0017] Preferably, the intelligent water quality monitoring and circulation control module includes a multi-parameter water quality sensor and a control unit; Multi-parameter water quality sensors are used to monitor the pH value, dissolved oxygen, turbidity, and eutrophication index of water bodies in real time. The sensors are waterproof and can be installed at the inlet and outlet of landscape water bodies or inside sedimentation tanks and reservoirs. The control unit has a built-in control program that receives monitoring data from multi-parameter water quality sensors, compares the monitoring data with preset water quality thresholds, and automatically adjusts the water body's operating power, operating mode, and filtration path within the pool structure based on the comparison results.

[0018] Preferably, the rainwater collection and ecological water replenishment linkage module includes rainwater collection facilities and a water storage and purification unit; the water storage and purification unit is connected to the rainwater collection facilities, and the water replenishment pipe and irrigation pipe are both connected to the water storage and purification unit and the landscape water body network, and each pipe is equipped with an electrically controlled valve, which is electrically connected to the control unit, for automatically opening the electrically controlled valve of the water replenishment pipe during the water shortage period to replenish the landscape water body with purified rainwater, and automatically opening the electrically controlled valve of the irrigation pipe during the water abundance period to transport the purified landscape water to the surrounding green areas for irrigation.

[0019] Compared with existing technologies, this invention provides an urban water landscape ecological cycle and intelligent purification system, which has the following beneficial effects: This invention integrates three core modules—modular wetland recycling treatment, intelligent water quality monitoring and recycling control, and rainwater harvesting and ecological water replenishment—to achieve a comprehensive breakthrough in the technical bottlenecks of traditional urban landscape water body management. This breakthrough addresses structural innovation, purification efficiency, operation and maintenance models, water resource utilization, and eco-friendliness. It achieves overall benefits including high-efficiency purification, intelligent operation and maintenance, low-carbon water conservation, long-term stability, and eco-friendliness. It can thoroughly solve the pain points of urban parks, communities, and commercial complexes, such as eutrophication, black and odorous water, high water consumption during water exchange, complex artificial wetland maintenance, high cost of replacing filler material, and difficulty in sustaining treatment effects.

[0020] This invention employs pluggable modular filtration and purification components, combined with an automatic stop valve plate structure for the diversion cylinder. This allows for independent replacement of individual branches when the filler is saturated or damaged, maintenance without shutting down the system, and no need to drain the pool or excavate large areas. This significantly reduces construction disturbance, labor input, and subsequent operation and maintenance costs, and substantially improves the system's continuous operation capability and service life. The pool adopts a grid-shaped layout and a central annular guide channel design, combined with a pluggable sealing part to flexibly switch water flow paths. It can quickly switch between multiple modes such as short-distance direct discharge, circulating purification, and full-process treatment according to the degree of pollution. It has strong resistance to shock loads and is suitable for landscape water treatment needs of different water qualities, scales, and working conditions.

[0021] The purification unit of this invention is equipped with a packing saturation adaptive passive control mechanism, which automatically opens and closes the water flow channel by relying on the balance of water pressure and spring force. When the packing becomes clogged and fails, the flow is automatically cut off, preventing water from passing directly without effective purification from the source. Combined with the automatic backflow and re-purification mechanism in the water storage tank where the water quality does not meet the standards, it ensures that the effluent meets the standards throughout the entire process. The graded sedimentation-filtration-purification process, combined with the L-shaped multi-stage overflow plate structure, can efficiently intercept suspended solids, quickly settle silt, and block scum, significantly reducing the load on subsequent treatments and improving the overall purification efficiency.

[0022] This invention's rainwater harvesting and ecological water replenishment module follows the concept of sponge cities, completing the tiered utilization of rainwater diversion, purification, storage, replenishment, and irrigation. During the dry season, it automatically replenishes ecological water for landscape water bodies, and during the wet season, it uses the surplus purified water for irrigation of surrounding green spaces, significantly reducing the consumption of municipal tap water and realizing the self-circulation and efficient utilization of regional water resources. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the combination of the diversion component and the filtering component of the present invention; Figure 4 This is a schematic diagram of the combination of the diversion component and the purification component of the present invention; Figure 5 This is a schematic diagram of the installation of the filter assembly of the present invention; Figure 6 This is a schematic diagram of the installation of the purification component of the present invention; Figure 7 For the present invention Figure 6 A magnified view of a section at point A in the middle; Figure 8 This is a schematic diagram of the overflow plate of the present invention; Figure 9 This is a schematic diagram of the annular guide channel of the present invention.

[0024] In the diagram: 100, tank structure; 110, sedimentation tank; 111, overflow plate; 120, filter tank; 130, purification tank; 140, water storage tank; 141, guide frame; 142, sealing partition; 150, first circulation pump; 160, second circulation pump; 170, annular guide channel; 171, sealing part; 200. Flow divider assembly; 210. Tube coil; 220. Flow divider cylinder; 221. Injector nozzle; 222. Valve plate; 300. Filter assembly; 310. Filter cartridge; 320. Cover plate; 330. Pressing part; 400. Purification component; 410. Purification cylinder; 420. Sealing cover; 430. Transmission unit; 431. Pressing shaft; 432. Spring; 433. Tube body; 434. Adjustment part. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] Example 1: See attached document Figures 1 to 9 The Urban Water Landscape Ecological Cycle and Intelligent Purification System comprises three modules: a modular wetland circulation treatment module, a water quality intelligent monitoring and circulation control module, and a rainwater harvesting and ecological water replenishment linkage module. These three modules work together to achieve ecological circulation and intelligent purification of urban landscape water bodies. The system adopts a three-in-one collaborative architecture. The modular wetland circulation treatment module undertakes the core functions of physical filtration, biological purification, and suspended solids interception. The water quality intelligent monitoring and circulation control module uses online sensing, real-time transmission, intelligent decision-making, and closed-loop execution as its control link, achieving fully unmanned operation and maintenance. The rainwater harvesting and ecological water replenishment linkage module follows the low-impact development principles of sponge cities, constructing a regional water resource self-circulation system. The three modules achieve data interoperability and command interlocking through control units, forming an integrated governance model of "pollution control—water quality maintenance—water resource circulation," suitable for the long-term ecological maintenance of landscape water bodies in urban parks, residential areas, and commercial complexes.

[0027] The modular wetland circulation treatment module includes a cross-distributed pool structure 100. Two sets of diversion components 200 are arranged inside the pool structure 100. Several filter components 300 and purification components 400 that can be individually plugged in and replaced are respectively provided on the two sets of diversion components 200. The filter components 300 are provided with layered filter media inside, and the purification components 400 are provided with layered purification media inside. The pool structure 100 adopts a cross-distributed modular layout, which can be combined and expanded according to site size, water volume, and pollution load to adapt to the treatment needs of landscape water bodies of different sizes. Two sets of diversion components 200 correspond to the physical filtration unit and the deep purification unit, respectively, realizing a graded treatment process of "filtration first, purification later". The filtration component 300 and purification component 400 adopt an independent pluggable modular design. When a single component is damaged or the packing is saturated, it can be directly pulled out and replaced without stopping the system to empty the pool or large-scale excavation, significantly reducing operation and maintenance costs and construction disturbance. The layered filter packing uses a gradient filling from large to small particle size to achieve step-by-step interception of suspended solids; the layered purification packing uses a composite formula of adsorption, degradation, and ion exchange types to specifically remove pollutants such as nitrogen, phosphorus, organic matter, and heavy metals from the water.

[0028] The intelligent water quality monitoring and circulation control module is used to monitor the water condition in real time. The monitoring range includes key water quality parameters such as pH value, dissolved oxygen, turbidity, and eutrophication index, and transmits the monitoring data to the control unit in real time. According to the changes in water quality, it automatically adjusts the operating power and operating mode of the two sets of circulation pumps, and at the same time controls the opening and closing state of the electrically controlled flow guide valve on the flow guide channel of the pool, changing the filtration path of the water in the pool structure 100, realizing dynamic and precise circulation and purification of the water, and ensuring that the water quality always meets the standards. The intelligent water quality monitoring and circulation control module adopts a multi-node distributed sensing layout. Sensor data is transmitted to the PLC control unit via RS485 / Wireless LoRa. The control unit incorporates a fuzzy PID control algorithm to compare real-time data with preset thresholds in the "Urban Landscape Water Quality Standard." When the water body is slightly polluted, the system activates a single-stage filtration + short-process purification mode; for moderate pollution, it activates a full-process multi-stage purification mode; and for severe pollution, it activates a circulation backflow enhanced purification mode. By automatically adjusting the circulation pump frequency and switching the flow guide valve on / off, the system dynamically matches the hydraulic retention time, filtration path, purification intensity, and pollution load, avoiding energy waste and insufficient purification, and ensuring that the effluent continuously meets the water quality requirements of the landscape water body.

[0029] The rainwater harvesting and ecological water replenishment linkage module is used to collect rainwater from the surrounding area and remove impurities and pollutants from the initial rainwater to ensure that the rainwater meets the water quality standards for replenishing the landscape water body. It is then discharged into the pool structure 100 and replenished according to the hydrological conditions of the landscape water body, including water level data, water quality data, and environmental conditions. The rainwater harvesting and ecological water replenishment linkage module includes an initial rainwater diversion device, a quartz sand primary filtration unit, and an activated carbon deep purification unit. It pre-treats rainwater collected from rooftops, roads, and green spaces, removing pollutants such as silt, floating debris, and organic matter, ensuring that the effluent turbidity, pH, and COD meet the requirements for landscape water body replenishment. The system uses level sensors, water quality sensors, and meteorological sensors to acquire real-time data on landscape water body levels, evaporation, precipitation, and water quality. It automatically initiates ecological water replenishment during droughts and periods of high evaporation, and automatically stops replenishment and initiates overflow discharge during high water levels in the rainy season. This achieves precise, on-demand water replenishment, eliminates water waste, and reduces reliance on municipal tap water.

[0030] See attached document Figure 1 and Figure 2 The pool structure 100 includes a sedimentation tank 110, a filtration tank 120, a purification tank 130, and a storage tank 140, all connected by flow channels. The pool structure 100 adopts a series-connected, staged treatment layout. The sedimentation tank 110 performs gravity settling pretreatment, removing silt, humus, and large suspended solids with a particle size ≥50μm. The filtration tank 120 performs physical fine filtration, retaining colloids, fine suspended particles, and algal residues. The purification tank 130 performs deep ecological purification, degrading dissolved pollutants and controlling eutrophication. The storage tank 140 stores treated water, monitors water quality, and provides ecological water replenishment. All pools are connected by closed flow channels with anti-vortex and anti-short-flow structures to ensure stable water flow according to the design process and improve treatment efficiency. The sedimentation tank 110 is equipped with several sets of overflow components, which are evenly distributed along the water flow direction, dividing the sedimentation tank 110 into multi-stage sedimentation zones. This creates a multi-stage baffled settling flow pattern, prolonging the hydraulic retention time and improving the settling efficiency of suspended solids. The overflow components ensure a stable outflow of supernatant after sedimentation, while the bottom sludge is blocked within the sedimentation zone, preventing it from rising to the surface and entering subsequent treatment units, thus reducing the filtration and purification load. Two flow divider components 200 are installed inside the filter tank 120 and the purification tank 130, respectively. In the filter tank 120, the flow divider component 200 is used in conjunction with the filter component 300 to achieve parallel physical filtration of multiple branches; in the purification tank 130, the flow divider component 200 is used in conjunction with the purification component 400 to achieve parallel deep purification of multiple branches. The two flow divider components operate independently without interference, and a single branch failure does not affect the overall system operation, improving system stability and redundancy.

[0031] The water storage tank 140 is equipped with internal partitions to divide its internal space into a clear water area and a test area. The water storage tank 140 adopts a functional zoning structure. The test area is a closed and independent water sample space to avoid interference from the flow in the clear water area, providing a stable and undisturbed monitoring environment for the water quality sensor and ensuring accurate and reliable monitoring data. The clear water area is used to store compliant purified water for replenishing landscape water bodies, irrigating green spaces, and serving as a circulating water source within the system, thus realizing water resource storage and allocation. The partition includes a sealing guide frame 141 and several sealing partitions 142. The sealing guide frame 141 is made of stainless steel / engineering plastic corrosion-resistant material and is welded / bolted to the wall of the water storage tank 140 to ensure the sealing of the partition and prevent cross-flow between the test area and the clear water area. The sealing partitions 142 adopt a plug-in installation structure, which is convenient to install and disassemble, reliable in sealing, and can be flexibly adjusted according to site requirements. A sealed guide frame 141 is fixed to a water storage tank 140. Several sealed partitions 142 are inserted into the sealed guide frame 141 in a stacked manner, forming a separation between the clear water zone and the test zone. By controlling the number of stacked sealed partitions 142, the water in the test zone enters the clear water zone for storage when it reaches different heights. The number of stacked sealed partitions 142 is positively correlated with the effective volume of the test zone and the overflow level. Increasing the number of partitions raises the overflow level in the test zone, while decreasing the number of partitions lowers the overflow level. When the water in the test zone meets the purification standards and the level exceeds the top of the partitions, the water passively overflows into the clear water zone for storage, achieving passive control of automatic water storage upon meeting water quality standards. This eliminates the need for electric actuators, reducing the risk of failure and energy consumption.

[0032] See attached document Figures 3 to 6The diversion assembly 200 includes a pipe coil 210 and several diversion cylinders 220. Each diversion cylinder 220 is detachably fixed to a branch pipe of the pipe coil 210, allowing water from the branch pipes to enter the diversion cylinders 220 for treatment by the filter assembly 300 or purification assembly 400. The pipe coil 210 is the core component of the central water distribution system, employing an equal-diameter, equidistant branch pipe design to evenly distribute the incoming water to each diversion cylinder 220, ensuring equal hydraulic load on each filter / purification assembly and preventing localized overload or insufficient treatment. The diversion cylinders 220 are detachably connected to the branch pipes using flanges / quick couplings, facilitating assembly, cleaning, and maintenance.

[0033] Several nozzles 221 are fixedly connected to the top outer surface of the diversion cylinder 220. These nozzles disperse and spray the treated water inside the diversion cylinder 220 to form an oxygenation operation. The nozzles 221 are arranged radially and obliquely in multiple directions. The treated water is sprayed out in a jet atomized state, which greatly increases the contact area and contact time between the water and the air, realizes forced aeration and oxygenation, rapidly increases the dissolved oxygen concentration in the water, inhibits the reproduction of anaerobic microorganisms, eliminates black and odorous water, and at the same time provides metabolic oxygen source for aerobic microorganisms in the purification packing, enhancing the biodegradation efficiency. The bottom of the diverter 220 is provided with a constriction section, and a valve plate 222 is slidably connected to the constriction section via a guide rod. This valve plate 222 is used to block the flow path of the constriction section. After the filter assembly 300 or the purification assembly 400 is pulled out from inside the diverter 220, the valve plate 222 works with the water pressure of the branch pipe to achieve automatic sealing. The constricted section is a variable-diameter flow-limiting structure. The valve plate 222 and the constricted section are sealed with a conical surface, and a rubber sealing gasket is installed on the sealing surface to ensure a tight seal and no leakage. The valve plate 222 is limited to sliding by at least two parallel guide rods, ensuring smooth and non-displaced operation. When the filter / purification component is pulled out, the valve plate 222 automatically moves upward to seal the constricted section under the combined action of the inlet static water pressure and dynamic water pressure, achieving continuous operation of the system without stopping the machine or the water supply, and allowing for single-component maintenance.

[0034] See attached document Figure 3 and Figure 4The filter assembly 300 includes a filter cartridge 310 inserted inside the diversion cylinder 220, used to fill the filter media such as quartz sand and pebbles for filtering water. The top and bottom of the filter cartridge 310 are both designed with filter holes, and a cover plate 320 is detachably installed on the top of the filter cartridge 310, and the cover plate 320 is detachably fixed to the top of the diversion cylinder 220. The filter cartridge 310 is made of high-strength, corrosion-resistant engineering plastic / stainless steel, with progressively decreasing pore sizes. The bottom inlet hole has a large diameter to prevent clogging, while the top outlet hole has a small diameter to ensure filtration accuracy. The internal filter media consists of a pebble support layer and a quartz sand filter layer, layered together. The support layer prevents filter media loss, while the filter layer achieves efficient retention of suspended solids. The cover plate 320 is fixed to the diversion cylinder 220 with bolts / clips, ensuring a secure and airtight installation to prevent short-circuiting and bypassing of water. A pressing part 330 is fixedly connected to the bottom of the filter cartridge 310. After the filter cartridge 310 is inserted into the diverter cylinder 220, the pressing part 330 presses down on the valve plate 222, causing the valve plate 222 to lose its sealing function. The pressing part 330 is a rigid columnar structure, and its length is precisely matched to the opening stroke of the valve plate 222. When the filter cartridge 310 is fully inserted into the diverter cylinder 220, the pressing part 330 overcomes the inlet water pressure and presses the valve plate 222 down to the open position, forming a stable water passage and ensuring that water smoothly enters the filter cartridge 310 to complete filtration. The pressing part 330 and the valve plate 222 are in surface contact, resulting in uniform force distribution, resistance to damage, and stable and reliable long-term operation. A first circulation pump 150 is installed on the tank structure 100 to discharge the settled water in the sedimentation tank 110 into the tube coil 210 located in the filter tank 120. The first circulation pump 150 is a submersible corrosion-resistant centrifugal pump with a filter screen anti-clogging device at the suction port to prevent sediment and debris from entering the pump body and causing damage. The pump body is electrically connected to the control unit and can be frequency-controlled according to water quality and flow requirements to provide stable power for water transportation from the sedimentation tank 110 to the filter tank 120, ensuring continuous operation of the filtration process.

[0035] See attached document Figures 5 to 7 The purification component 400 includes a purification cylinder 410 inserted inside the diversion cylinder 220, used to fill with water purification materials such as nitrogen and phosphorus removal materials, activated carbon, and microbial carriers. The top and bottom of the purification cylinder 410 are both designed with filter holes, and a detachable sealing cap 420 is installed on the top of the purification cylinder 410, which is detachably fixed to the top of the purification cylinder 410. The purification cylinder 410 is filled with multifunctional composite purification materials: nitrogen and phosphorus removal materials remove ammonia nitrogen and total phosphorus through ion exchange; activated carbon removes color, organic matter, and odor through physical adsorption; and the microbial carrier provides an attachment and growth space for aerobic / facultative anaerobic microorganisms, continuously removing pollutants through biodegradation. The sealing cap 420 is sealed tightly to the purification cylinder 410 to prevent water sideflow and ensure that all water must penetrate the packing layer to complete purification.

[0036] The purification cylinder 410 is equipped with a transmission unit 430 for controlling the valve plate 222. The transmission unit 430 is a passive control mechanism for packing saturation self-adaptation. It requires no electricity or sensors and relies on the balance of water pressure and mechanical spring force to achieve automatic opening and closing. It accurately judges the blockage and saturation state of the purification packing, and prevents unpurified water from passing directly through the source, thus ensuring the effectiveness of purification.

[0037] A second circulation pump 160 is installed on the tank structure 100 to discharge the filtered water from the filtration tank 120 into the pipe coil 210 located in the purification tank 130. The second circulation pump 160 is also a variable frequency corrosion-resistant submersible centrifugal pump, which works in conjunction with the first circulation pump 150 to form a continuous hydraulic process of "sedimentation-filtration-purification". The pump operating parameters are uniformly controlled by the control unit to ensure stable water delivery and balanced flow from the filtration tank 120 to the purification tank 130. The suction end of the second circulation pump 160 is fixed with a three-way pipe, and the suction end of the three-way pipe is located in the test area of ​​the filter tank 120 and the water storage tank 140. Both suction ends of the three-way pipe are equipped with control valves, which are used to discharge the purified water back into the purification component 400 for circulation purification according to the water quality in the test area of ​​the water storage tank 140. The three-way pipe enables dual water source intake: under normal operating conditions, it draws water from the filter tank 120 for purification; when the water quality monitoring of the test area fails to meet the standards, the control unit automatically closes the control valve at the water intake end of the filter tank and opens the control valve at the water intake end of the test area, returning the substandard water to the purification tank 130 for enhanced circulation purification until the water quality meets the standards, and then switches back to the normal process, forming a closed-loop intelligent circulation purification to ensure that the effluent meets the standards 100%.

[0038] See attached document Figure 6 and Figure 7 The transmission unit 430 includes a retractable pressing shaft 431 and a spring 432 for pressing the pressing shaft 431 downwards. The pressing shaft 431 is a sealed sliding shaft, and the spring 432 is a high-precision compression spring. Together, they form a pressure-balanced actuator. The spring force is the set opening threshold, and the water pressure is the real-time feedback signal. The valve plate 222 is automatically controlled through the force balance relationship. The structure is simple, the failure rate is extremely low, and the service life is long.

[0039] The elastic coefficient of spring 432 is greater than the water pressure exerted by the purification cylinder 410 on the water body for purification. After the purification cylinder 410 is inserted into the diversion cylinder 220, the pressing shaft 431 presses the valve plate 222 downward, so that the valve plate 222 loses its sealing function and forms normal purification work. Also, when the pores of the packing in the purification cylinder 410 are gradually blocked by pollutants, the resistance of water flow through the packing layer gradually increases, and the pressure of the water flow acts directly on the valve plate 222, causing the pressing shaft 431 to contract and the valve plate 222 to form a seal. This is used to prevent the failure of water purification when the packing inside the purification cylinder 410 becomes saturated and fails. The elastic coefficient of spring 432, calibrated under hydraulic conditions, is greater than the normal penetration resistance of the packing, ensuring stable opening of valve plate 222 during the initial purification phase. As operating time increases, the pores of the packing become clogged with suspended solids and biofilm, causing a sharp increase in water penetration resistance. The water pressure overcomes the spring force, pushing the pressing shaft 431 upwards to retract, and valve plate 222 automatically moves upwards to block the water passage, forcibly stopping the water flow. This prevents water from "passing through" the packing after it becomes saturated and ineffective, thus ensuring the reliability of the system's purification process.

[0040] See attached document Figure 6 and Figure 7 The purification cylinder 410 is fixedly connected to the tube body 433, and the pressing shaft 431 is slidably connected to the bottom of the tube body 433 by means of a sealing sleeve. The spring 432 is located inside the tube body 433 and is used to press the end of the pressing shaft 431 downward. The tube body 433 is a sealed pressure-bearing cavity, providing installation and protection space for the pressing shaft 431 and the spring 432. The sealing sleeve is made of wear-resistant and corrosion-resistant rubber material, realizing the sliding seal of the pressing shaft 431, preventing water from entering the tube body 433 and causing the spring 432 to rust or get stuck, thus ensuring the long-term stable operation of the mechanism; The tube body 433 has an axially sliding adjustment part 434 inside. The spring 432 is fixed between the adjustment part 434 and the pressing shaft 431. The top of the tube body 433 is threaded with an adjustment bolt for adjusting the adjustment part 434 up and down. The adjustment part 434 is used to change the initial pressure of the spring 432 by adjusting the adjustment part 434 up and down, thereby adjusting the pressure resistance of the pressing shaft 431. The adjusting bolt, adjusting part 434, and spring 432 constitute a precise pressure calibration mechanism. Rotating the adjusting bolt clockwise lowers the adjusting part 434, increasing the initial compression of the spring 432 and raising the opening pressure of the pressing shaft 431; rotating it counterclockwise lowers the opening pressure. The trigger pressure can be flexibly calibrated according to the type of packing material, contamination intensity, and operating stage, adapting to different working conditions and improving the system's versatility and adaptability.

[0041] In this embodiment, the intelligent water quality monitoring and circulation control module includes a multi-parameter water quality sensor and a control unit; The multi-parameter water quality sensor is used to monitor the pH value, dissolved oxygen, turbidity and eutrophication index of water bodies in real time. The sensor is waterproof and is installed at the inlet and outlet of the landscape water body or inside the sedimentation tank 110 and the water storage tank 140. The sensor adopts an IP68 waterproof immersion design, enabling stable long-term underwater operation. It is resistant to fouling and corrosion and requires no maintenance. The deployment points cover the inlet, pretreatment, purification, and outlet, forming a complete water quality monitoring network to comprehensively understand the water pollution status and purification effect, providing data support for intelligent control. The control unit has a built-in control program that receives monitoring data from multi-parameter water quality sensors, compares the monitoring data with preset water quality thresholds, and automatically adjusts the operating power, operating mode, and filtration path of the water body in the pool structure 100 based on the comparison results. The control program incorporates a three-level water quality response mechanism: light pollution → low power short flow; moderate pollution → rated power full flow; heavy pollution → high power recirculation. It automatically adjusts the circulation pump frequency, electronically controlled valve switching, and flow path switching to achieve energy-saving, precise, and intelligent operation, reducing energy consumption and maintenance costs.

[0042] In this embodiment, the rainwater harvesting and ecological water replenishment linkage module includes rainwater harvesting facilities and a water storage and purification unit. The water storage and purification unit is connected to the rainwater harvesting facilities, and the water replenishment pipes and irrigation pipes are connected to the water storage and purification unit and the landscape water body network. Each pipe is equipped with an electrically controlled valve, which is electrically connected to a control unit. During periods of water shortage, the valve automatically opens the water replenishment pipe valve to replenish the landscape water body; during periods of abundant water, it automatically opens the irrigation pipe valve to deliver purified landscape water to surrounding green areas for irrigation. This achieves tiered utilization of rainwater and landscape water resources, practicing the sponge city concept. The rainwater harvesting facilities include a drainage ditch, a diversion well, and a filter screen, automatically diverting heavily polluted initial rainwater and collecting subsequent clean rainwater. The water storage and purification unit performs sedimentation, filtration, and disinfection treatment on the rainwater to meet the water replenishment requirements. Water supply pipes are used to maintain the water level and volume of landscape water bodies; irrigation pipes use surplus purified water for green space irrigation, constructing a tiered utilization system of rainwater → landscape water → greening water, improving the comprehensive utilization rate of water resources, and achieving ecological protection and sustainable development.

[0043] Example 2: The difference from Example 1 is as follows: See attached document Figure 8 The overflow component includes an overflow plate 111 fixed inside the sedimentation tank 110. The overflow plate 111 is the core solid-liquid separation component of the sedimentation tank 110. It adopts an integrated molding structure, is firmly installed, not easily deformed, and has stable and reliable long-term operation. It is used to achieve efficient separation of the supernatant and the bottom sludge after sedimentation. The overflow plate 111 is hollow inside, and a notch Q1 is provided at the bottom of its outer side. When the water level in the sedimentation tank 110 is higher than the overflow plate 111, the water enters the sedimentation area of ​​the next stage through the hollow part of the overflow plate 111 and the notch Q1. An extension Q2 is provided at the top of the outer side of the overflow plate 111 to prevent water from directly entering the sedimentation area of ​​the next stage when the water level is higher than the overflow plate 111. The hollow inner cavity is a water flow channel, and the notch Q1 is a bottom outlet hole, allowing water to flow out stably from the bottom of the sedimentation area without disturbing the bottom sediment. The extension Q2 is a scum barrier weir, with a height higher than the design liquid level, effectively preventing floating objects, oil film, and algae from entering the next sedimentation unit, ensuring clear effluent and reducing the load on subsequent treatment. The overflow plate 111 is L-shaped and is used to expand or contract the area between the preliminary sedimentation zone and the final sedimentation zone, so that the sediment inside the sedimentation tank 110 can be quickly accumulated and the clear water can be quickly separated after sedimentation. The L-shaped structure forms a variable cross-section sedimentation channel, which is narrow at the front end and wide at the rear end, and the water flow velocity gradually decreases. This provides sufficient time and a stable flow field for the settling of suspended solids, promotes the rapid accumulation and compaction of sediments such as silt and humus, reduces the volume of sludge, and facilitates regular sludge removal. At the same time, it accelerates the separation speed of the supernatant, improves the treatment efficiency of the sedimentation tank 110 and the quality of the effluent.

[0044] Example 3: The difference from Example 1 is as follows: See attached document Figure 1 and Figure 9 The pool structure 100 is arranged in a grid pattern, and an annular guide channel 170 is provided in the middle of the pool structure 100. The outer surface of the annular guide channel 170 has openings that communicate with the four pools respectively. The annular guide channel 170 has four sealing parts 171 inserted inside to seal the openings. By pulling out the sealing parts 171 at different positions, the different pools can be connected to each other, changing the water flow path in the different pools. For example, the treated water in the sedimentation tank 110 can be directly discharged into the storage tank 140 without further filtration. The water in the filtration tank 120 returns to the sedimentation tank 110 to form multiple filtration operations. The treated water in the purification tank 130 is circulated back to the filtration tank 120 to form a circulating purification operation, etc. The grid-shaped layout is compact, efficient, and adaptable, facilitating site preparation and construction. The annular guide channel 170 serves as the central guide hub, with four openings corresponding to the sedimentation tank 110, filtration tank 120, purification tank 130, and storage tank 140, respectively. The sealing section 171 is a plug-in sealing baffle, allowing for convenient pull-out operation and a tight seal. By combining the plug-in sealing section 171, multiple operating modes can be achieved: ① Short-distance direct discharge mode (sedimentation → storage tank); ② Repeated filtration mode (filtration → sedimentation); ③ Circulating purification mode (purification → filtration); ④ Full-process multi-stage purification mode (sedimentation → filtration → purification → storage tank). The system can flexibly adapt to changes in pollution intensity, rapidly treating light pollution and intensively treating heavy pollution, significantly improving system adaptability, resistance to shock loads, and operational flexibility.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An urban water landscape ecological cycle and intelligent purification system, characterized in that, include: The modular wetland recycling treatment module, the intelligent water quality monitoring and recycling control module, and the rainwater harvesting and ecological water replenishment linkage module work together to achieve ecological recycling and intelligent purification of urban landscape water bodies. The modular wetland circulation treatment module includes a cross-distributed pool structure (100), and two sets of diversion components (200) are arranged inside the pool structure (100). Each set of diversion components (200) is provided with several filter components (300) and purification components (400) that can be individually plugged in and replaced. The filter components (300) are provided with layered filter media inside, and the purification components (400) are provided with layered purification media inside. The intelligent water quality monitoring and circulation control module is used to monitor the water condition in real time and transmit the monitoring data to the control unit in real time; according to the changes in water quality, the filtration path of the water in the pool structure (100) is changed; The rainwater collection and ecological water replenishment linkage module is used to collect surrounding rainwater, discharge it into the pool structure (100), and replenish it according to the hydrological conditions of the landscape water body.

2. The urban water landscape ecological cycle and intelligent purification system according to claim 1, characterized in that, The pool structure (100) includes a sedimentation tank (110), a filtration tank (120), a purification tank (130), and a water storage tank (140), and the pools are connected by a flow channel; The pool structure (100) is arranged in a grid pattern, and an annular guide channel (170) is provided in the middle of the pool structure (100). The outer surface of the annular guide channel (170) is provided with openings that communicate with the four pools respectively. The annular guide channel (170) is provided with four sealing parts (171) for sealing the openings. By pulling out the sealing parts (171) at different positions, the different pools can be connected to each other, and the water flow path in the different pools can be changed. The sedimentation tank (110) is equipped with several sets of overflow components inside; Two flow-through components (200) are installed inside the filter tank (120) and the purification tank (130), respectively; The water storage tank (140) is provided with a partition to divide the internal space of the water storage tank (140) into a clear water area and a test area; The separator includes a sealing guide frame (141) and several sealing partitions (142). The sealing guide frame (141) is fixed to the water storage tank (140). Several sealing partitions (142) are inserted into the sealing guide frame (141) in a stacked manner to form a separation between the clear water area and the test area. By controlling the number of stacked sealing partitions (142), the water in the test area enters the clear water area for storage when it reaches different heights.

3. The urban water landscape ecological cycle and intelligent purification system according to claim 1, characterized in that, The diversion assembly (200) includes a pipe coil (210) and several diversion cylinders (220). The several diversion cylinders (220) are detachably fixed to the branch pipes of the pipe coil (210) for water in the branch pipes to enter the diversion cylinders (220) and be treated by the filter assembly (300) or the purification assembly (400). The top outer surface of the diversion cylinder (220) is fixedly connected to several nozzles (221), which are used to disperse and spray the treated water in the diversion cylinder (220) to form an oxygenation operation; The bottom of the diversion cylinder (220) is provided with a constriction section, and a valve plate (222) is slidably connected to the constriction section via a guide rod. This valve plate (222) is used to block the flow path of the constriction section. After the filter assembly (300) or the purification assembly (400) is pulled out from inside the diversion cylinder (220), the valve plate (222) works with the water pressure of the branch pipe to achieve automatic sealing.

4. The urban water landscape ecological cycle and intelligent purification system according to claim 3, characterized in that, The filter assembly (300) includes a filter cartridge (310) inserted inside the diverter (220) for filling with filler material for filtering water. The top and bottom of the filter cartridge (310) are both configured with filter holes, and a cover plate (320) is detachably installed on the top of the filter cartridge (310), and the cover plate (320) is detachably fixed to the top of the diverter (220). The bottom of the filter cartridge (310) is fixedly connected to a pressing part (330), which is used to press the valve plate (222) downward after the filter cartridge (310) is inserted into the diverter (220), so that the valve plate (222) loses its sealing function. The pool structure (100) is equipped with a first circulation pump (150) for discharging the water treated by sedimentation in the sedimentation tank (110) into the pipe coil (210) located in the filter tank (120).

5. The urban water landscape ecological cycle and intelligent purification system according to claim 3, characterized in that, The purification assembly (400) includes a purification cylinder (410) inserted inside the diversion cylinder (220) for filling with filler material for purifying water. The top and bottom of the purification cylinder (410) are both configured with filter holes, and a sealing cap (420) is detachably installed on the top of the purification cylinder (410), and the sealing cap (420) is detachably fixed to the top of the purification cylinder (410). The purification cylinder (410) is provided with a transmission unit (430) for controlling the valve plate (222). A second circulation pump (160) is installed on the pool structure (100) to discharge the filtered water in the filtration pool (120) into the pipe coil (210) located in the purification pool (130); The second circulating pump (160) has a three-way pipe fixed at its suction end, and the suction end of the three-way pipe is located in the test area of ​​the filter tank (120) and the water storage tank (140). Both suction ends of the three-way pipe are equipped with control valves, which are used to discharge the purified water back into the purification component (400) for circulation purification according to the water quality in the test area of ​​the water storage tank (140).

6. The urban water landscape ecological cycle and intelligent purification system according to claim 5, characterized in that, The transmission unit (430) includes a retractable pressing shaft (431) and a spring (432) for pressing the pressing shaft (431) downward. The elastic coefficient of the spring (432) is greater than the water pressure of the purification cylinder (410) for water purification. After the purification cylinder (410) is inserted into the diversion cylinder (220), the pressing shaft (431) presses the valve plate (222) downward, so that the valve plate (222) loses its sealing function and forms normal purification work. When the pores of the packing in the purification cylinder (410) are gradually blocked by pollutants, the resistance of water flow to penetrate the packing layer gradually increases, and the pressure of the water flow directly acts on the valve plate (222), causing the pressing shaft (431) to contract and the valve plate (222) to form a seal. This is used to prevent the failure of water purification when the packing inside the purification cylinder (410) becomes saturated and fails.

7. The urban water landscape ecological cycle and intelligent purification system according to claim 6, characterized in that, The purification cylinder (410) is fixedly connected to a tube body (433), and the pressing shaft (431) is slidably connected to the bottom of the tube body (433) with a sealing sleeve. The spring (432) is located inside the tube body (433) and is used to press the end of the pressing shaft (431) downward. The tube body (433) has an axially sliding adjustment part (434) inside. The spring (432) is fixed between the adjustment part (434) and the pressing shaft (431). The top of the tube body (433) is threaded with an adjustment bolt for adjusting the adjustment part (434) up and down. The adjustment part (434) is adjusted up and down to change the initial pressure of the spring (432) and adjust the pressure resistance of the pressing shaft (431).

8. The urban water landscape ecological cycle and intelligent purification system according to claim 2, characterized in that, The overflow component includes an overflow plate (111) fixed inside the sedimentation tank (110). The overflow plate (111) is hollow inside, and a notch Q1 is provided at the bottom of the outer side of the overflow plate (111) so that when the water level in the sedimentation tank (110) is higher than the overflow plate (111), the water enters the sedimentation area of ​​the next stage through the hollow position of the overflow plate (111) and the notch Q1; an extension Q2 is provided at the top of the outer side of the overflow plate (111) to prevent the water from directly entering the sedimentation area of ​​the next stage when the water level is higher than the overflow plate (111); The overflow plate (111) is L-shaped and is used to expand or shrink the area between the initial sedimentation zone and the final sedimentation zone, so that the sediment inside the sedimentation tank (110) can accumulate quickly and the clear water can be separated quickly after sedimentation.

9. The urban water landscape ecological cycle and intelligent purification system according to claim 2, characterized in that, The intelligent water quality monitoring and circulation control module includes multi-parameter water quality sensors and a control unit; The multi-parameter water quality sensor is used to monitor the pH value, dissolved oxygen, turbidity and eutrophication index of water bodies in real time. The sensor is waterproof and is installed in the inlet and outlet of the landscape water body or inside the sedimentation tank (110) and the water storage tank (140). The control unit has a built-in control program for receiving monitoring data from multi-parameter water quality sensors, comparing the monitoring data with preset water quality thresholds, and automatically adjusting the operating power, operating mode, and filtration path of the water body in the pool structure (100) based on the comparison results.

10. The urban water landscape ecological cycle and intelligent purification system according to claim 9, characterized in that, The rainwater harvesting and ecological water replenishment linkage module includes rainwater harvesting facilities and a water storage and purification unit. The water storage and purification unit is connected to the rainwater harvesting facilities, and the water replenishment pipes and irrigation pipes are connected to the water storage and purification unit and the landscape water body network. Each pipe is equipped with an electrically controlled valve, which is electrically connected to the control unit. During the water shortage period, the electrically controlled valve of the water replenishment pipe is automatically opened to replenish the landscape water body with purified rainwater. During the water abundance period, the electrically controlled valve of the irrigation pipe is automatically opened to transport the purified landscape water to the surrounding green areas for irrigation.

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