33 results about "Rain garden" patented technology

The invention relates to the technical field of intelligent construction. The invention provides a rainwater garden construction control method and system based on BIM dynamic rainfall flood simulation. The method comprises the following steps: integrating target area data and real-time weather forecast, and constructing a fusion model; importing the fusion model into a coupling engine, simulating an extreme rainfall scene, and generating a dynamic hydrological load map; according to the dynamic hydrological load map, reverse iterative calculation is carried out, and a three-dimensional parameterized design model is output; decomposing the three-dimensional parameterized design model into a layered construction instruction set, and constructing a real-time twinborn body on a BIM platform; field data are collected and compared with real-time twinborn bodies, and when the soil layer permeability coefficient deviation is larger than a preset threshold value or the process conflict risk, a re-optimization instruction is triggered, and the mechanical operation sequence is adjusted. The problems that due to the fact that existing rainwater garden static design and experience construction cannot dynamically respond to the complex hydrological environment and construction disturbance, facility efficiency is low, failure is prone to occurring, and the construction rework rate is high are solved.

The invention discloses rainwater garden recycling equipment with a purification function, and relates to the technical field of rainwater purification, the recycling equipment comprises a natural filter tank, a collection mechanism, an anti-accumulation mechanism, an angle adjusting mechanism and a water treatment mechanism, the natural filter tank is provided with the anti-accumulation mechanism, the natural filter tank is internally provided with the angle adjusting mechanism, and the angle adjusting mechanism is provided with the water treatment mechanism; the collecting mechanism is connected with the accumulation preventing mechanism, the angle adjusting mechanism is connected with the water treatment mechanism, the water treatment mechanism treats filtered rainwater again, the accumulation preventing mechanism is used for preventing rainwater impurities from being accumulated at one position, and the natural filtering tank is of a tank-shaped structure arranged on the ground. The natural filter tank comprises a water storage layer, a covering layer, a planting soil layer, a sand layer and a gravel layer from top to bottom, and the surface of the natural filter tank is covered with vegetation.

The invention belongs to the technical field of rainwater treatment, and particularly relates to an overflow and clarification integrated well structure suitable for a rainwater garden, the overflow and clarification integrated well structure comprises a well body shell, the well body shell is a vertically arranged hollow cavity structure; through three-stage purification of pretreatment, clarification and deep filtration, large-particle impurities are intercepted by a multi-way pipe intercepting net and a conical filter plate, suspended matter sedimentation is realized by a clarification cavity uniform distribution plate, a guide cylinder and sedimentation inclined holes, and small particles are intercepted and pollutants are adsorbed by filter fence filler, so that the rainwater quality is ensured to reach the standard, the pollution of a municipal pipe network is reduced, and the rainwater reuse potential is improved; buoyancy driving and mechanical limiting are combined to achieve full-automatic overflow control, when the water level rises, a buoyancy plate drives a component to start overflow and lock the component, when the water level drops, the component is automatically closed, and an anti-vortex plate and a guide vane guarantee overflow stability and prevent impurities from being involved in. And the linkage part periodically discharges impurities, external power is not needed, and the operation and maintenance cost is reduced.

The invention discloses an elastic city rainwater garden layout optimization method and system self-adaptive to climate change, and relates to the technical field of sponge city drainage optimization. Multi-dimensional data are collected in real time through an ultrasonic liquid level sensor, an electromagnetic flowmeter and a meteorological radar, a physical model is constructed, and a weighted flow value is generated in combination with LSTM; intelligent prediction under the constraint of the physical law is achieved, threshold matching and deviation correction are conducted based on the weighted flow value, and the pipe diameter adjusting amount is calculated; and constructing a three-color matrix execution feedback strategy containing prediction precision, drainage efficiency and equipment loss. The problems that a traditional scheme is poor in dynamic adaptability, single in model and free of closed-loop feedback are solved, and the elasticity of a drainage system to cope with climate changes is improved.

The utility model belongs to the field of sponge city construction, and particularly relates to a rainwater garden system for sponge city construction, a permeation area in a foundation pit of the rainwater garden system sequentially comprises a water storage layer, a covering layer, a planting soil layer, an artificial filler layer, a sand layer and a gravel layer from top to bottom, and the high porosity of water storage ceramsite is utilized, so that the water purification and storage performance is good; through mutual cooperation of all the layers, rainwater is effectively purified and stored, and the water quality and the water storage amount of the rainwater garden system are improved. In addition, the rainwater garden system is simple in structure and convenient to construct and maintain in the later period.

The utility model relates to an overflow drainage facility externally connected with a rainwater vertical pipe, which belongs to the technical field of building drainage and comprises a bottom plate, an overflow drainage well arranged on the top surface of the bottom plate, a fine aggregate concrete cushion layer laid on the top surface of the bottom plate and positioned in the overflow drainage well, and a gravel layer laid on the top surface of the fine aggregate concrete cushion layer, a first hole is formed in one side of the overflow discharge well, a second hole located below the first hole is formed in the side, away from the first hole, of the overflow discharge well, a rainwater vertical pipe body is fixedly connected to the interior of the first hole, and the end, away from the overflow discharge well, of the rainwater vertical pipe body is located indoors. And the overflow discharge well is pre-buried in the rainwater garden. The rainwater purification device has the effects that rainwater can be effectively filtered and purified, and therefore pollutants permeating into underground water are reduced.

The utility model discloses a kind of urban rainwater garden covering structures, including main structure, the perimeter of main structure is equipped with side slope, main structure sequentially includes from below to above: anti-seepage layer, gravel layer, sand layer, filter layer, replacement soil layer, covering layer, water storage flower mirror layer, superhigh water layer;Overflow well is equipped in main structure and passes through each layer, water storage flower mirror layer and the height between the top of overflow well form superhigh water layer, superhigh water layer is lower than side slope top;Permeable blind pipe is laid in gravel layer, one end of permeable blind pipe is communicated with overflow well, the other end extends out ground through main structure.

This utility model belongs to the field of urban water conservation and discloses an integrated system for rainwater harvesting and greywater reuse in buildings. It includes a rainwater harvesting system comprising a rainwater tank, rainwater collection pipes, rainwater downpipes, and a rainwater outlet pipe. The rainwater tank is installed within the building body, the rainwater collection pipes are fixed to the top of the building body and connected to the rainwater tank, and a rainwater overflow pipe is installed inside the rainwater tank. The rainwater downpipes are installed on the side walls of the building body, and the rainwater overflow pipes are connected to the rainwater downpipes. The rainwater outlet pipe is installed on the side wall of the rainwater tank. A greywater system is also included. Rainwater is collected from the top floor of the building body through the rainwater collection pipes, and then connected to the greywater system through the rainwater outlet pipes. This allows the rainwater collected by the building body to be reused for indoor washing, avoiding the situation where rainwater collected by the building cannot be fully utilized by the rain garden, thus improving the utilization rate of rainwater.

This invention discloses a method and system for simulating stormwater runoff infiltration and storage in rain gardens for sponge cities. First, using a centimeter-resolution three-dimensional topographic model of the target catchment area, the layered structure and geotechnical parameters of LID (Light Infiltration Device) facilities, and minute-by-minute rainfall intensity-duration curves of the design storm as input, an improved Green-Ampt infiltration model considering the layered media and surface water storage driving effects is constructed. This model is integrated with a two-dimensional shallow water equation surface runoff model driven by centimeter-resolution micro-topography through a two-way temporal coupling mechanism, achieving minute-by-minute dynamic simulation of the entire design storm process. This fully reproduces the entire hydrological process of surface runoff collection, LID facility infiltration and storage, and overflow. This invention significantly improves the accuracy and reliability of stormwater process simulation, and can simultaneously output spatiotemporal dynamic visualization results of runoff, quantitative hydrological indicators, and compliance assessment results of sponge city design specifications, providing reliable technical support for the refined design and effect verification of LID facilities.

The invention discloses a modular gradient rainwater purification garden system, a monitoring method and a construction method. The existing rainwater garden system generally has the problems of non-standard structure and inconvenience in assembly. The system sequentially comprises a permeable pavement layer, a bioretention layer, a capillary guide and drainage layer and a water storage and reuse layer from top to bottom, each functional layer structure adopts a standard module unit, and the standard module units are connected through stainless steel tenon-and-mortise connectors in an inserted manner; waterproof rubber sealing rings and bentonite sealing strips are arranged at splicing seams of the standard module units; an intelligent monitoring unit is arranged in each functional layer and comprises a turbidity sensor, a pH sensor, a water level sensor and a temperature sensor; all the sensors are connected to the wireless module, and sensor data are uploaded to the cloud prediction platform through a network for centralized processing. According to the rainwater garden system, the flexibility and convenience of the rainwater garden system in the construction, installation and later maintenance processes are improved.

The invention relates to the field of urban infrastructure and more particularly to those which incorporate urban rain gardens, preferably arranged in an opening in an urban pavement.

The utility model discloses a gutter inlet blocking grate suitable for snow-melting agent discarding control, which comprises a frame, a grating cover plate and a door plate structure, the frame comprises a rectangular frame body, an outer frame and an inner frame, one side of the inner frame is provided with a rotating shaft, the outer wall of the rotating shaft is provided with the grating cover plate, the other side of the inner frame is provided with a catching groove, and the door plate structure is arranged in the catching groove. The door plate structure is arranged at the bottom of the frame, the door plate structure comprises a movable handle, a hinge, a movable door plate and a sealing rubber ring, the hinge is arranged on the side, close to the rotating shaft, of the bottom of the frame and connected with the frame and the movable door plate, the grating cover plate can be conveniently opened and prevented from being stolen, and the door plate structure can be conveniently opened and closed; when the movable door plate is opened, snow water containing a snow-melting agent is discarded and flows to a pipe network, when the movable door plate is closed, it can be guaranteed that rainwater without the snow-melting agent enters rainwater infrastructures such as a rainwater garden, and the functionality of the rainwater infrastructures is effectively protected.

The utility model discloses an urban road waterlogging prevention and rainwater regulation and storage system which comprises a permeable pavement belt, a grass planting ditch and a rainwater garden which are arranged on at least one side of an urban road, the permeable pavement belt is arranged on the side edges of the grass planting ditch and the rainwater garden, the grass planting ditch and the rainwater garden are arranged on the same path at intervals, turf is planted on the grass planting ditch, and the rainwater garden is arranged in the grass planting ditch. The middle part of the grass planting ditch is lower than two sides of the grass planting ditch, and the grass planting ditch is provided with a diversion slope leading to an adjacent rainwater garden on the same path. The combined design of the permeable paving belt, the grass planting ditch and the rainwater garden is utilized. The permeable pavement belt is used for rapid water permeation, the grass planting ditch is used for collecting and transferring rainwater, the rainwater garden is used for collecting, regulating, storing and purifying runoff rainwater of adjacent roadways, sidewalks, non-motorized vehicle lanes and green belts along the line, the effects of solving road catchment, controlling runoff and purifying water are achieved, and by means of the road green space, the regulation and storage efficiency is high; the maintenance cost is low, and rainwater can be effectively purified.

The present invention discloses a rain garden overflow device capable of allocating water in layers, belonging to the field of rainwater treatment technology, and comprising a water storage tank, a first filtering structure, and a diversion structure; the water storage tank is arranged under the surface of a plantation, and its interior includes water storage chambers arranged in sequence, and the water storage chambers are arranged at intervals from top to bottom; the first filtering structure is arranged at the top of the water storage tank and is connected to the water storage tank; the diversion structure is arranged in the water storage chamber, and its end extends into the soil. The present invention divides the water storage tank into multiple water storage chambers from top to bottom, and arranges diversion structures in the water storage chambers. The elevation difference between the diversion structures is used to irrigate the soil at different depths, and the water storage volume of each water storage chamber is controlled by controlling its volume, thereby controlling the irrigation volume at different depths of the soil. The two cooperate to achieve the distribution of water at each level according to the thickness of the soil layer and water demand, thereby achieving the purpose of soil water saturation.

The invention relates to the technical field of city reconstruction, and discloses an old community reconstruction method based on sponge city construction, which comprises the following steps: determining reconstruction areas based on rainwater engineering and foundation buildings of old communities, the reconstruction areas being an outer wall area, a road area and a green area; based on the transformation measures, the outer wall area is transformed, and rainwater disconnection nodes are obtained; based on the transformation measures, the road and the greening area are transformed, and rainwater garden nodes are obtained; a sponge module-old community composite residential system is obtained; according to the old community reconstruction method based on sponge city construction, old community construction and sponge module fusion reconstruction are carried out, a reasonable reconstruction sequence is provided, a sponge module-old community composite residential system is obtained, management and reutilization of rainwater resources are achieved to the maximum extent, and the utilization rate of the rainwater resources is improved. And surface runoff and rainwater pollution are reduced, the rainwater waterlogging phenomenon is remarkably reduced, and the living comfort of residents is improved.

The utility model aims to provide a rainwater garden greening structure with a biological detention pond, which comprises an original soil layer, a trapezoidal gabion is arranged between a paved road surface and a rainwater garden sinking groove, and a side water groove is arranged between the trapezoidal gabion and the paved road surface; sinking grooves are formed in the tops of the trapezoidal gabions, and the bottom surfaces of the sinking grooves are flush with the top surface of the first planting soil layer. The utility model relates to the technical field of landscaping design, a side water tank is arranged outside a pavement, so that water flow left by the pavement is firstly gathered in the side water tank to form a buffer area before the water flow flows into a rainwater garden sinking groove, and the impact force of the water flow is reduced. When a large amount of water flows into the side water tank, high-water-level water flows into the sinking groove of the rainwater garden through the sinking grooves along the outer wall face of the trapezoidal gabion, the uncertainty of the water flow outflow direction is reduced, accurate control over the water flow direction is achieved, and the flood problem possibly caused by the fact that water flow overflows all around is avoided.

The present application relates to an overflow outlet structure of a rain garden, and belongs to the technical field of overflow of rain gardens. The overflow outlet structure includes an impermeable layer, a gravel layer, and a planting soil layer laid in sequence from bottom to top, and an overflow pipe pre-buried in the gravel layer. The impermeable layer, the gravel layer, and the planting soil layer together form a rain garden. The top of the overflow pipe penetrates the planting soil layer and extends to the top of the planting soil layer. The overflow pipe is covered with a cover body, and the peripheral side of the cover body is provided with a plurality of evenly distributed perforations. The present application has the effect of solving the problem of traditional overflow pipes. When the rainwater height of the rain garden is lower than the overflow height of the overflow pipe, the accumulated water in the rain garden can only be slowly discharged by the infiltration of the rain garden, resulting in the problem that the rain garden will accumulate water for a long time, and the long-term accumulation of water will breed mosquitoes.

The utility model relates to a rainwater garden overflow well, and belongs to the technical field of rainwater collection, the rainwater garden overflow well comprises a well body and a rainwater grate, the well body is arranged in the land along the vertical direction, the rainwater grate covers the top of the well body, a sewage interception hanging basket is arranged in the well body, and a connecting assembly for connecting the sewage interception hanging basket and the rainwater grate is arranged between the sewage interception hanging basket and the rainwater grate. The sewage intercepting hanging basket is detachably connected with the rainwater grate, a plurality of hydraulic rods are arranged between the interior of the well body and the sewage intercepting hanging basket, one end of each hydraulic rod is hinged to the inner wall of the well body, and the other end of each hydraulic rod is hinged to the bottom of the rainwater grate. The sewage intercepting hanging basket has the effect that a worker can conveniently clean the sewage intercepting hanging basket.

The utility model belongs to the technical field of sponge city construction, and discloses a science popularization display platform rainwater garden, which comprises a first-stage flower bed, a second-stage flower bed, a third-stage flower bed, a display system, a broken stone permeation pool and a flower bed foundation, and is characterized in that the first-stage flower bed, the second-stage flower bed and the third-stage flower bed are sequentially connected in series in a platform manner and are arranged in a staggered manner; the flower beds are connected and fixed through the flower bed foundations, rainwater runoff enters the flower beds of the next level through the overflow grooves after entering the flower beds of the first level to be subjected to infiltration purification and finally flows into the gravel infiltration pool to be subjected to purification and infiltration, and the display system is embedded in the flower beds of the first level. The rainwater garden with the science popularization display platform is suitable for steep slope environments or complex terrains, the rainwater regulation and storage volume can be increased while the construction area of the rainwater garden is saved, the treatment efficiency of rainwater pollutants is enhanced, in addition, the rainwater garden has a science popularization display function, and the rainwater garden is convenient to use. The whole process of rainwater transmission, precipitation, purification and collection is clearly displayed to people, an immersive science popularization experience space is provided, and the best ecological benefit and landscape value are considered.

To provide a rain garden that can be easily constructed, is easy to maintain, and harmonizes with the surrounding natural environment, and a construction method for the same.SOLUTION: A rain garden of the present invention comprises a recess 11 formed in the soil, comprising a bottom surface 12 and side surfaces 13, and a rainwater introduction part 16 that introduces rainwater from the surroundings of the recess 11 into an interior 11a of the recess 11. The bottom surface 12 of the recess 11 includes a permeable structure 14 formed by directly laying organic material on a soil 18 of the bottom surface 12.SELECTED DRAWING: Figure 1

The invention discloses a micro-grid type rainwater garden based on slag-based pervious concrete. The micro-grid type rainwater garden comprises a footpath and square surface layer rainwater collection system, a surface layer bottom overflow storage system, a rainwater collection system, a rainwater utilization system and a micro-grid system based on photovoltaic power generation. Wherein the permeable filtering surface layer and the filling layer are made of tailing solid waste, the bottom of the surface layer is provided with a self-adaptive water storage and overflow pipeline network and a strong and weak electricity reserved pipeline, and rainwater is stored in the buried water pool through the collecting system and then supplied to rainwater utilization systems (greening irrigation, fountains and the like) through a water pump; the micro-grid system generates power through a photovoltaic panel, directly supplies power in the daytime, stores residual power and supplies power through stored energy at night. The method realizes recycling of tailing solid waste, efficiently utilizes rainwater and solar energy, is energy-saving and environment-friendly, and conforms to the green ecological building concept.

The utility model discloses a novel rainwater collection system for a community ground and a rainwater garden, which comprises a road surface, sidebands for collecting rainwater are built on two sides of the road surface, and the rainwater garden is arranged on the outer side of each sideband, and is characterized in that a certain slope is arranged at the bottom of each sideband, so that the rainwater can flow conveniently; sand sediment wells are built in the sideband at certain intervals, the depth of the sand sediment wells is larger than that of the sideband, a vertically-extending flow guide plate is arranged in the middle of the interior of each sand sediment well, the height of each flow guide plate is lower than that of the ditch bottom of the sideband, the sand sediment wells are divided into two spaces through the flow guide plates, and the flow guide plates are arranged in the two spaces. A pipeline is arranged on the upper portion of the side wall of the cavity, close to one side of the low slope, of the sand sediment trap and connected with the rainwater garden, the position of the pipeline is lower than the flow guide plate, the pipeline is arranged on the side away from the flow guide plate, and a sand sediment inclined plate is arranged at the bottom of each space of the sand sediment trap. Soil and sandy soil are prevented from entering the rainwater garden to damage plants and structures of the rainwater garden and block a water inlet pipeline of the rainwater garden.

The utility model relates to a rainwater garden system, concretely is a kind of structure of ground rainwater garden system of integrated large-size rain chain drainage, including canopy installed on wall body, and the end of canopy is provided with water collecting tank;Landscape ground, set in the outside of wall body;Still include rain chain, connect the drainage hole formed on water collecting tank and landscape ground, including multiple stainless steel pipes and the connecting piece of connecting adjacent two stainless steel pipes, and the drainage passage is formed in the inside of stainless steel pipe.Rainwater flows into water collecting tank along canopy, and the water in water collecting tank is directionally dropped on landscape ground by rain chain, realizes the directional discharge of rainwater, simultaneously, rain chain is set with connecting piece by stainless steel pipe, so that rainwater can flow along the inside of stainless steel pipe, and under the action of connecting piece between adjacent two stainless steel pipes, rainwater enters next stainless steel pipe along connecting piece, improve the wind resistance of rain chain, eliminate the problem that water point is not concentrated when water flow is separated from rain chain under the action of wind force during heavy rain.

This application relates to a sponge city rain garden, specifically in the technical field of rain gardens. It includes rainwater pipes and a diversion device. The diversion device comprises: a mounting frame mounted on the rainwater pipe; two mounting plates rotatably mounted on the mounting frame and used to block the rainwater pipe; two filter bags, each mounted on the two mounting plates and used to filter water; a sedimentation tank located in the roadbed; a water guiding control component mounted on the mounting frame and used to guide water into the sedimentation tank; a buoyancy mechanism floating on the water surface and connected to the two mounting plates; and a blocking mechanism mounted on the mounting frame and used to prevent the two mounting plates from continuing to rotate. This application uses the combination of water accumulation and the buoyancy mechanism to drive the mounting plates to rotate, forming a diversion space. Part of the filtered water is discharged through the rainwater pipe, while the remaining water enters the diversion space for further filtration, and then enters the sedimentation tank for sedimentation and filtration, thereby improving the functionality of the rain garden.

This application relates to the technical field of rainwater utilization, and in particular to a roof rainwater interruption structure, including a rainwater downpipe and an energy dissipation tank. A trap frame is installed on the top of the energy dissipation tank, and the surface of the trap frame is covered with a filter layer. The filter layer is connected to a rain garden, and the outlet end of the rainwater downpipe is aligned with the filter layer. Rainwater inlets are opened on the side wall of the energy dissipation tank, and a filtration layer is provided on the outside of the energy dissipation tank. This application provides a roof rainwater interruption structure that further improves the rainwater filtration effect.

This application relates to the field of road drainage technology, and provides a rain garden-style median strip drainage structure, which includes a trench dug in the center of the road, a filter assembly, and a conveying assembly. The filter assembly includes a first filter plate and second filter plates disposed at both ends of the first filter plate. The first filter plate is supported on the trench wall, a first planting layer is disposed above the first filter plate, and a water storage area is disposed below the first filter plate. The surface of the first filter plate is arc-shaped. The second filter plate extends along the height direction of the trench. The conveying assembly includes multiple conveying pipes, one end of which extends to the water storage area, and the other end extends into the first planting layer. The conveying pipes are filled with conveying sponges, one end of which extends to the first planting layer, and the other end extends into the water in the water storage area, which reduces the difference in soil moisture content in the median strip between the rainy and dry seasons.

To provide a rainwater basin cover capable of adjusting the amount of rainwater flowing into a rain garden and promptly draining rainwater into a rainwater pipe when a storage capacity of the rain garden is exceeded.SOLUTION: The present disclosure provides a rectangular rainwater basin cover 10 arranged along a curbstone 17 on a roadside, the rainwater basin cover 10 comprising a first area 12 as a road-side area and a second area 14 as a curb-side area, the first area 12 including a first opening 15 having at least one opening, the second area 14 having one end A, a central part B, and the other end C in a traveling direction X of a road 11. At least the one end A and the other end C among the one end A, the central part B, and the other end C have no opening.SELECTED DRAWING: Figure 1

The invention discloses a rainwater-graywater combined recycling device, comprising a rainwater collection and treatment system, a graywater collection and treatment system, a water collection system, an automatic control system, pipelines and accessories. The rainwater collection and treatment system mainly comprises a rainwater collection box, a high-turbidity rainwater separation box, and a rain garden connected in sequence by pipelines; the graywater collection and treatment system mainly comprises a graywater collection box, a pre-processor, and a rain garden connected in sequence by pipelines; the water collection system is composed of a first water collection box, a secondary processor, and a second water collection box connected in sequence by pipelines; the COD meter, a liquid level timer, a flow meter, a hygrometer, a turbidity meter, and a liquid level meter in the automatic control system are connected to a PLC controller, and the PLC controller is connected to a solenoid valve and a water pump; the pipelines and accessories include a float valve, a gate valve, a check valve, pipelines, and electric wire pipelines. The device uses a rain garden to process rainwater and gray water, saves irrigation water, and is economically feasible.

The present invention discloses a system for collecting, purifying and reusing rainwater at a dock, and relates to the technical field of collecting and reusing initial rainwater at a dock. The system consists of a vortex sand settling rainwater well, a rainwater garden and a recycling unit; the vortex sand settling rainwater well consists of a rainwater well body, a water inlet pipe, a sponge concrete water delivery channel and an overflow pipe; the sponge concrete water delivery channel is built with sponge concrete; the rainwater garden consists of a planting layer, a medium layer and a drainage layer from top to bottom; multi-layer immobilized small balls of composite bacteria are evenly distributed inside the medium layer; the recycling unit consists of an underground water collection tank and a recycling pump. The rainwater purified by the rainwater garden is collected by the underground water collection tank, and transported to dock water points such as yard water points, road water points, green belt water points and living area water points through the recycling pump. The present invention can effectively collect rainwater on the bulk cargo dock surface, increase the infiltration rate of rainwater, reduce the rainwater runoff, and improve the rainwater quality. It can be directly used as water for flushing the dock surface, reducing rainwater runoff pollution and saving water resources. It has the advantages of simple and compact structure, low operating cost, easy control, high rainwater reuse rate, and environmental friendliness.