11 results about "Rain garden" patented technology

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 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 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 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 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 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 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 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.