Modular rainwater recycling device

Abstract

The application discloses a modular rainwater recycling device, comprising: a water collecting and sand discharging area for impurity discharge; a communication purification area for realizing automatic water level balance with a front unit through a communication pipe and ensuring natural flow of water flow in the system; and a clear water recycling area for forming a flexible water resource recycling network. The application constructs a four-in-one modular rainwater management device of 'water collecting-sand discharging-purification-recycling', and realizes full-process closed-loop operation of rainwater from collection, treatment to recycling.

Description

Technical Field

[0001] This invention relates to rainwater treatment technology, specifically to a modular rainwater harvesting device. Background Technology

[0002] Currently, the traditional "rapid drainage" gray infrastructure drainage system has long dominated the urban drainage field. However, under the influence of climate change, extreme rainfall events are becoming more frequent, with increasing intensity and frequency. Faced with heavy rainfall exceeding design standards, traditional drainage systems are struggling to cope, gradually revealing their inadequacies. Under the impact of extreme heavy rainfall, urban flooding is frequent, severely hindering urban operations and causing huge economic losses.

[0003] In the innovative practice of urban stormwater management, many technical challenges still need to be addressed. The high daily maintenance costs of various low-impact development facilities, the frequent siltation problems faced by traditional stormwater treatment equipment, and the substantial investment in intelligent monitoring systems all place a heavy burden on project progress. Especially in water-scarce cities in the north, despite abundant rainwater resources, the resource utilization of rainwater is unsatisfactory due to limitations in treatment technology and management models, and the treated water quality is difficult to consistently meet standards. These practical difficulties have led to a situation where sponge city construction prioritizes construction over application, with many existing facilities failing to fully realize their expected effectiveness, thus hindering the development of urban stormwater management in my country to a higher level.

[0004] The development of rainwater management technology has steadily progressed along the path of "introduction-improvement-innovation," continuously achieving technological breakthroughs and practical results. However, at the level of modular equipment technology, many challenges remain to be overcome. The irreconcilable contradiction between hydraulic self-purification efficiency and device compactness, the dilemma of balancing energy consumption and operating costs during sediment separation, and the synergistic challenge between intelligent monitoring accuracy and equipment durability have become key technological barriers restricting the industry's development, requiring breakthroughs through innovative technologies and systematic solutions.

[0005] Current rainwater harvesting systems are inefficient and have low rainwater treatment performance. Summary of the Invention

[0006] The main objective of this invention is to provide a modular rainwater harvesting device that integrates "water collection, sand removal, purification, and reuse" into a modular rainwater management system, achieving a closed-loop operation of the entire process from rainwater collection and treatment to reuse.

[0007] The technical solution adopted in this invention is: a modular rainwater harvesting device, comprising: Water collection and sediment discharge area, used for impurity discharge; The connected purification zone is used to achieve automatic water level balance with the pre-treatment unit through the connecting pipe, ensuring that the water flows naturally within the system; The clean water reuse zone is used to form a flexible water resource recycling network.

[0008] Furthermore, the inlet of the water collection and sediment discharge area is equipped with a bar screen to effectively separate large particles such as leaves and gravel; The bottom is designed with a sloping sand-draining structure, which, combined with the principle of fluid gravity settling, allows denser sand and gravel to be naturally deposited and directionally aggregated. The equipped valves can be opened and closed according to the accumulation of sediment, enabling timed or intelligently triggered impurity discharge, minimizing clean water loss while ensuring efficient sand removal.

[0009] Furthermore, the connected purification zone adopts a layered composite filtration technology, with a porous natural mineral filter material laid on the upper layer. It removes dissolved pollutants through a combination of physical adsorption and biodegradation, and deeply intercepts suspended particles.

[0010] Furthermore, the clean water reuse area is used to store purified clean water in an independent, sealed water storage unit, equipped with a low-energy submersible pump to achieve on-demand water extraction; The water storage unit has a reserved standardized interface, which can be seamlessly connected to water terminals such as greening irrigation and road cleaning to form a flexible water resource recycling network.

[0011] Furthermore, the grid integrates an inclined grid with a sloping sand discharge channel structure to form a dynamic sand discharge machine; it is equipped with a sloping gravity sedimentation principle to enhance the stratified enrichment of particulate matter, and with the help of valves, it realizes the directional discharge of sediment.

[0012] Furthermore, the modular rainwater harvesting device constructs a communicating vessel hydraulic gravity flow system based on the principle of communicating vessels, and realizes cross-regional water transport without power through potential energy difference.

[0013] Advantages of this invention: The device of this invention establishes a complete resource management system covering rainwater collection, treatment, and utilization. Relying on precise interception technology, efficient purification process, and automatic allocation system, it transforms natural precipitation into stable and reliable reclaimed water resources.

[0014] Through refined management of rainfall, the system can achieve seamless connection from rainwater collection at the source to end-use applications, effectively avoiding resource waste in traditional drainage models.

[0015] Compared to traditional rainwater treatment facilities, this device demonstrates significant advantages in engineering design and cost control. Its innovative use of high-strength, lightweight materials ensures structural stability and durability while substantially reducing construction costs and significantly optimizing the return on investment per unit of treatment capacity.

[0016] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] Figure 1 is a three-dimensional intuitive view (front) of the present invention; Figure 2 is a three-dimensional intuitive view of the present invention (reverse side); Figure 3 is a side view of the model of the present invention; Figure 4 is a front view of the model of the present invention; Figure 5 is a diagram of the core functional units of the model of the present invention; Figure 6 is a top view of the model of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] refer to Figures 1 to 6 This device breaks away from traditional rainwater treatment models, innovatively constructing a modular rainwater management system integrating "water collection, sediment removal, purification, and reuse," achieving a closed-loop operation of the entire rainwater process from collection and treatment to reuse. The device is meticulously optimized and scientifically divided into functional units such as flocculation sedimentation filtration, activated carbon adsorption, chemical purification, and sterilization. These units work together to form a highly efficient and orderly treatment system. The flocculation sedimentation filtration unit separates rainwater carrying large amounts of sediment at the initial stage of rainfall. This unit is pre-filled with flocculant, and its specially designed sloping bottom facilitates sediment deposition. When sediment accumulates to a certain level, an indicator light automatically illuminates, prompting sediment removal to ensure continuous and efficient operation. The activated carbon adsorption, chemical purification, and sterilization units integrate advanced technologies to effectively remove organic matter, microorganisms, and other impurities from rainwater, ensuring the treated water meets domestic water quality standards. This provides a standardized and replicable equipment solution for sponge city construction at the county level, demonstrating significant value and innovative significance in both engineering applications and theoretical research.

[0021] Core Functional Unit 1: Water Collection and Sediment Discharge Area The inlet is equipped with a screen to effectively separate large particles such as leaves and gravel. The innovative sloping sand-discharging structure at the bottom, combined with the principle of fluid gravity settling, allows denser sand and gravel to naturally settle and directionally accumulate. Equipped valves can be opened and closed according to the accumulation of sediment, enabling timed or intelligently triggered impurity discharge, minimizing clean water loss while ensuring efficient sand discharge.

[0022] Core Functional Unit Two: Connecting the Purification Zone Automatic water level balancing with the pre-filter unit is achieved through connecting pipes, ensuring natural water flow within the system. The purification zone employs layered composite filtration technology, with a porous natural mineral filter media layered on top. This media removes dissolved pollutants through a combination of physical adsorption and biodegradation, while also deeply trapping suspended particles.

[0023] Core Functional Unit 3: Clean Water Reuse Area The purified water is stored in a separate, sealed space, equipped with a low-energy submersible pump for on-demand water extraction. The water storage unit has standardized interfaces that can be seamlessly connected to water-using terminals such as greening irrigation and road cleaning, forming a flexible water resource recycling network.

[0024] Innovative Features: Intelligent sand removal collaborative system The system innovatively integrates inclined grids and sloping sediment discharge channels to form a dynamic sediment discharge mechanism. The system incorporates the principle of sloping gravity settling to enhance the stratified enrichment of particulate matter, and valves enable directional discharge of sediments.

[0025] Ecological hydraulic transmission design Based on the principle of communicating vessels, a hydraulic gravity-flow system is constructed to achieve cross-regional water transport without power through potential energy difference. This design not only achieves zero-energy operation but also improves system reliability by eliminating mechanical vibration, making it particularly suitable for outdoor scenarios with limited power supply. It establishes a closed-loop technology system of "dynamic interception - ecological purification - intelligent reuse." In practical applications, it demonstrates multiple advantages: a self-cleaning and sand-removal mechanism reduces maintenance costs; the powerless water transport design enables green operation; and the treated water can be used in garden irrigation, municipal cleaning, and other scenarios, providing innovative technological support for the recycling of urban water resources.

[0026] Application prospects: Project market adaptability: In recent years, affected by a combination of factors including climate change and topography, coupled with the accelerating pace of urbanization, urban flooding has become an increasingly prominent problem. Persistent flooding not only severely disrupts residents' daily lives and studies but also exposes the shortcomings of urban drainage systems in coping with extreme rainfall. Meanwhile, although my country has a large population, its total freshwater resources are relatively limited, and its per capita water resources are far below the world average, resulting in a long-standing contradiction between water supply and demand. In areas with high water consumption, such as schools and residential communities, the efficient recycling of water resources is particularly crucial.

[0027] Against this backdrop, a newly developed rainwater management device has emerged, providing an effective solution to the aforementioned challenges. Through innovative design, this device constructs a comprehensive rainwater treatment and utilization system, significantly enhancing the region's rainwater absorption capacity. Unlike the resource waste caused by traditional "rapid drainage" rainwater treatment models, this device employs flow buffering and peak-shaving discharge mechanisms. During periods of heavy rainfall, it can both temporarily store water, effectively reducing peak runoff and mitigating the risk of urban flooding, and simultaneously achieve the resource-based retention and utilization of rainwater, reusing the collected and treated rainwater. This greatly improves the comprehensive utilization rate of water resources and opens up new avenues for urban water resource management and flood prevention.

[0028] Project competitiveness: This rainwater management system aligns perfectly with the national green development concept and sustainable development strategy, and is expected to reshape the construction pattern of future schools, residential communities, and other living spaces, becoming a mainstream choice for upgrading urban living environments. Against the backdrop of "dual carbon" goals and ecological civilization construction, the system's rainwater recycling model not only effectively alleviates urban water supply pressure but also helps reduce the load on municipal pipe networks, injecting new momentum into the healthy operation of the urban ecosystem.

[0029] Compared to traditional rainwater treatment facilities, this device exhibits significant advantages in engineering design and cost control. Its innovative use of high-strength, lightweight materials ensures structural stability and durability while substantially reducing construction costs and optimizing the return on investment per unit of treatment capacity. This high cost-effectiveness makes it particularly suitable for large-scale application in public institutions and community spaces. Whether it's replenishing landscape water systems and irrigating green spaces on campuses, or washing roads and dehumidifying garages in residential communities, the device can be flexibly configured as needed, seamlessly meeting water demand at different scales. Its modular design and standardized components facilitate installation, maintenance, and functional expansion, fully adapting to the diverse needs of schools and communities at different stages of development. It truly achieves a perfect balance between technological advancement and economic practicality, providing a forward-looking and feasible solution for urban green infrastructure construction.

[0030] Project innovation: This device will promote innovative development in construction, involving multiple fields including architectural design, water resource management, and environmental protection, bringing new development opportunities to related industries. Its construction features the extensive application of smart technologies, such as an intelligent management system integrating equipment status monitoring functions. Through regular self-inspections and anomaly warnings, it reduces the frequency of manual inspections, forming a lightweight operation and maintenance model of "preventive maintenance + on-demand intervention," thereby optimizing rainwater collection, purification, storage, and utilization, and improving water resource utilization efficiency. Simultaneously, based on systems thinking, this device is conducive to the establishment of refined management in communities or schools and the innovation of management models, driving the development of urban big data and artificial intelligence technologies in the water-related field, and providing pioneering experience for comprehensive urban smart construction. It also proposes a new ecological design concept, adjusting the vertical orientation of the site to prioritize the discharge of rainwater from roads into nearby green spaces, achieving a self-circulation of materials, meeting people's needs for a better life, and reflecting a dual respect for both people and the environment.

[0031] Project feasibility: This system breaks through the functional boundaries of traditional rainwater management equipment, innovatively integrating the concept of open education into its design. Using a transparent and visual interface, it fully presents the entire ecological cycle of rainwater from collection and purification to reuse. Every processing step and every technical detail of the device is presented to the public in an intuitive and clear way, transforming complex water treatment technology into a perceptible and understandable concrete scenario.

[0032] Within primary and secondary school campuses, this system serves not only as an efficient rainwater treatment facility but also as a natural ecological education classroom. Students can observe the scientific principles of rainwater purification up close, intuitively experience the entire process of water resource recycling, and closely integrate theoretical knowledge from textbooks with practical applications, stimulating their enthusiasm for exploring environmental protection and sustainable development. In community public spaces, the installation transforms into a physical medium for environmental science education, guiding residents to deeply understand the value and significance of rainwater resource utilization through immersive displays, subtly enhancing public awareness of water conservation and ecological responsibility.

[0033] This design, which integrates education with governance, cleverly combines functionality and education. It not only meets the practical needs of urban stormwater management but also provides a vivid and engaging platform for environmental protection practices, truly achieving the organic unity of ecological, social, and educational benefits. It opens up new paths for promoting public awareness of environmental protection and disseminating green concepts, demonstrating strong applicability and social value.

[0034] Economic benefits: This system establishes a complete resource management system covering rainwater collection, treatment, and utilization. Relying on precise interception technology, efficient purification processes, and automatic allocation systems, it transforms natural precipitation into stable and reliable reclaimed water resources.

[0035] Through refined management of rainfall, the system can achieve seamless connection from rainwater collection at the source to end-use applications, effectively avoiding resource waste in traditional drainage models.

[0036] After undergoing deep purification treatment, the water quality is stable and meets standards for use in various scenarios, fully satisfying diverse non-potable water needs such as urban greening irrigation, landscape water replenishment, and road washing. The large-scale application of this reclaimed water source significantly reduces municipal water consumption in non-essential areas, effectively alleviating urban water supply pressure while significantly lowering water costs for public institutions, communities, and commercial areas. As the contradiction between water supply and demand becomes increasingly prominent, this system, by tapping into the potential value of rainwater, not only creates considerable direct economic benefits but also generates long-term resource conservation and cost optimization effects by reducing the load on municipal pipe networks and alleviating sewage treatment pressure, injecting economic momentum into sustainable urban development.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular rainwater harvesting device, characterized in that, include: Water collection and sediment discharge area, used for impurity discharge; The connected purification zone is used to achieve automatic water level balance with the pre-treatment unit through the connecting pipe, ensuring that the water flows naturally within the system; The clean water reuse zone is used to form a flexible water resource recycling network.

2. The modular rainwater harvesting device according to claim 1, characterized in that, The water inlet of the water collection and sediment discharge area is equipped with a bar screen to effectively separate large particles such as leaves and gravel. The bottom is designed with a sloping sand-draining structure, which, combined with the principle of fluid gravity settling, allows denser sand and gravel to be naturally deposited and directionally aggregated. The equipped valves can be opened and closed according to the accumulation of sediment, enabling timed or intelligently triggered impurity discharge, minimizing clean water loss while ensuring efficient sand removal.

3. The modular rainwater harvesting device according to claim 1, characterized in that, The connected purification zone adopts a layered composite filtration technology. The upper layer is laid with porous natural mineral filter media, which removes dissolved pollutants through the dual action of physical adsorption and biodegradation, and deeply intercepts suspended particles.

4. The modular rainwater harvesting device according to claim 1, characterized in that, The clean water reuse area is used to store purified clean water in an independent, sealed water storage unit, equipped with a low-energy submersible pump to achieve on-demand water extraction; The water storage unit has a reserved standardized interface, which can be seamlessly connected to water terminals such as greening irrigation and road cleaning to form a flexible water resource recycling network.

5. The modular rainwater harvesting device according to claim 2, characterized in that, The grid integrates an inclined grid with a sloping sand discharge channel structure to form a dynamic sand discharge machine; the sloped gravity sedimentation principle is used to enhance the stratified enrichment of particulate matter, and valves are used to achieve directional discharge of sediment.

6. The modular rainwater harvesting device according to any one of claims 1 to 5, characterized in that, The modular rainwater harvesting device is based on the principle of communicating vessels to construct a communicating vessel hydraulic gravity flow system, which realizes cross-regional water transport without power through potential energy difference.

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