30 results about "Roof runoff" patented technology

A system and method for restoring the natural water cycle by reducing stormwater runoff and addressing issues affecting groundwater supply. In one embodiment of the invention, the system comprises a roof washer component, cistern component, pump, and manufactured dry well. The system is designed to divert polluted rooftop runoff, capture clean rooftop runoff and store this clean water for irrigation purposes and nonpotable uses, while infiltrating excess water to recharge groundwater supplies thereby replicating the natural hydrologic cycle.

A rain gutter assembly including an overlying cover. A gutter trough is in the form of a channel having an upwardly-facing opening. The cover overlies the channel opening and includes a front edge that is spaced from the front edge of the gutter channel to define a gap therebetween to allow roof runoff to flow around the convex front edge of the cover and into the channel. A series of longitudinally-spaced support brackets are positioned within the gutter channel and support the gutter trough and the cover to provide a rigid gutter assembly. An end cap is provided at each longitudinal end of the gutter channel and overlies both the gutter channel cross section and the space between the gutter channel cross section and the cover, to prevent entry of leaves, twigs, and debris into the channel through the ends of the gutter trough.

The invention provides a full-automatic sampling device for roof runoff in different time periods. The full-automatic sampling device comprises a sampler box body, a shading device and a rainwater sensor which are located above the sampler box body, and a turntable type automatic sampling device and an electric control box which are located in the sampler box body. The full-automatic sampling device can automatically collect a roof runoff sample and record the sampling time of the roof runoff sample, and has the advantages of light weight, easiness in carrying, simplicity in operation and capability of improving the experiment accuracy.

The Automated Roof Runoff Management System mitigates the impact of storm water overwhelming existing infrastructure to handle it by automatically retaining storm water on roofs and releasing it at times where the system has adequate capacity to handle the retained water.

A gutter cover with clip is provided that operates with a variety of gutter styles to capture roof runoff while preventing debris from entering the gutter. The gutter cover is an elongated panel of sufficient width to bridge a roof to the far side of the gutter. A radiused edge is provided to direct roof runoff into the gutter. The clip includes a mounting tab and an upward rising arm. A tooth on the arm positively engages an aperture in the radiused edge to facilitate extremely accurate, fast, and resilient installation of a gutter cover system.

The invention discloses a green roof capable of lowering the pollutant concentration in rainwater runoff, and provides a green roof for improving runoff water quality, river closure capacity and water-holding capacity. The green roof includes a structural layer, a water-proof layer, a root-blocking layer, a water storing-drainage layer, a filtering layer, a substrate layer and a vegetative cover.Rainwater enters the substrate layer from the vegetative cover layer, the substrate layer and the vegetative cover provide the functions that the water quality of the rainwater is purified, the runoffpeak value is delayed, and roof runoff is reduced, then pollutions are held back through the filtering layer, the water storing-drainage layer is entered, when the rainwater is accumulated to a certain amount and is discharged through an overflow pipe, and the roof runoff is generated. The green roof has the functions of purifying the water quality of the rainwater, delaying runoff generation time, delaying the runoff peak value and reducing the roof runoff and landscape.

Roof runoff water control systems for a building with gutters and a downspout and buildings without gutters. Both systems employ a swale in the ground that is lined with rock filled bags that are opened and laid overlapped end-to-end. For the downspout, a closed bag filled with rock is placed under the downspout with open bags filled with rock laid overlapped end-to-end in the swale and overlapped downstream from the closed bag. For a building without gutters and having a drip line in the ground, open bags filled with rock are laid overlapped end-to-end in the swale. The swale and the open bags are aligned with the drip line.

The invention discloses a roof structure for a sponge city. The roof structure comprises a roofing layer, a waterproof layer, a water storage layer and a protection net layer, a roofing rainwater opening used for discharging rainwater is formed in the roofing layer, the waterproof layer is arranged on the roofing layer and used for preventing the water from seeping down to the roofing layer, the water storage layer is arranged on the waterproof layer, a drainage channel is formed in the water storage layer, the drainage channel communicates with the roofing rainwater opening and used for collecting and discharging the overflowing rainwater exceeding the water storage capacity of the water storage layer, and the protection net layer is arranged on the water storage layer. The roof structurefor the sponge city is suitable for construction of tower building roofs of high-rise buildings developed at a high density, the roofing runoff can be controlled while drainage safety of the tower building roofs of the high-rise buildings is ensured, and the limitation of roofing rainwater runoff management measures for an existing environment-friendly roof is broken through.

The invention relates to a water retention and purification blanket used for a green roof and a manufacturing method thereof and belongs to the field of building materials. Upper-layer non-woven fabric and middle-layer fabric are sewn through stitch-bonded threads, material fibers having even thickness are loaded between the two layers of fabric, and the surfaces of the fibers are covered with an attapulgite clay layer. The middle-layer non-woven fabric and lower-layer non-woven fabric are connected through a needle punching technology, and a mixture of active carbon granules and red algae powder which are evenly mixed is loaded between the two layers of non-woven fabric. The filtering and water retention blanket is used between a water drainage layer and a planting layer to replace a traditional filtering layer, in this way, soil loss can be prevented, roof runoff can be purified, and a certain water retention function is achieved. The blanket is reasonable in structure, raw materials are sufficient, processing is convenient, the price is low, and the blanket is durable and good in filtering effect.

The invention relates to a roof rainfall runoff simulation method and device, computer equipment and a storage medium. The method comprises the following steps: receiving a to-be-simulated flow fieldarea sent by a terminal, and establishing a grid area corresponding to the to-be-simulated flow field area; obtaining simulation parameters corresponding to the to-be-simulated flow field area, and querying model boundary conditions corresponding to the to-be-simulated flow field area; generating a runoff simulation model according to the simulation parameters and the model boundary conditions; and obtaining a target runoff simulation result corresponding to the to-be-simulated flow field area through the runoff simulation model and the grid area. Inaccurate and incomplete simulation of the roof runoff caused by simulation only depending on actual experiments can be avoided. Simulation calculation can be conducted on areas, affected by wind power, of rainfall runoff of different areas of abuilding roof, qualitative analysis can be conducted on the influence degree of the areas, and therefore the integrity and accuracy of roof rainwater drainage system design can be improved.

The invention belongs to the technical field of resources and environments. An existing method for calculating the roof runoff pollutant concentration through a water quality model is greatly different from reality in the application process, and aiming at the problem in the prior art, the invention discloses a roof rainwater runoff pollutant concentration calculation method, which comprises the following steps of: firstly, defining a typical rain pattern formula of regional rainfall, obtaining a change rule of rainfall of the region in different rainfall recurrence periods through the rain pattern formula, and applying the rule to subsequent steps; secondly, designing a rainfall recurrence period P and a session rainfall duration T of the region, collecting the number Td of sunny days inthe earlier stage of rainfall of the region, selecting a certain roof as an object, and defining the length L and the gradient theta of the roof; and calculating confluence time tc by a formula 2, andselecting a corresponding pollutant concentration calculation formula to describe the change process of the roof runoff pollutant concentration along with time according to the confluence time tc. The computational formula is high in scientificity and high in correlation with experimental data.

The invention discloses a soil and water salinity regulation and control system for green infrastructures of a sponge city. The system comprises a roof runoff regulation and control system, a municipal road runoff regulation and control system and a greenbelt runoff regulation and control system, wherein the roof runoff regulation and control system comprises a pebble canal, bioretention facilities, a rainwater storage pool, a roof rainwater collection pipe network, a low-salt water body and a greening drip irrigation system; the municipal road runoff regulation and control system comprises aninitial discarding rainwater well, a pebble canal, a strip-shaped low-terrain greenbelt, bioretention facilities, a rainwater storage pool, a municipal road rainwater collection pipe network, a medium-salinity water body and a greening drip irrigation system, and the bioretention facilities are arranged in the strip-shaped low-terrain greenbelt at intervals and used for collecting road runoff pretreated by the strip-shaped low-terrain greenbelt; and the greenbelt runoff regulation and control system comprises a low-terrain greenbelt, a rainwater storage pool, a greenbelt rainwater collectionpipe network and a high-salinity water body. Unconventional water resources can be effectively recycled, soil and water salinity is regulated and controlled, water safety is guaranteed, and a water landscape is built.

The invention discloses a multifunctional low impact development bioretention system, belonging to the field of ecological environment construction. The system sequentially comprises a plant layer, arunoff water temporary storage layer, a covering layer, a planting soil layer, a sand layer, a gravel water storage layer and a rain storage bucket from top to bottom, wherein the gravel water storagelayer is provided with a perforated pipe communicated with the outside; the planting soil layer is provided with filler, and the filler is filled in a manner of completely mixing the matrix filler; the filler is prepared from soil, sand and organic matter; the sand layer is used for filtering and preventing soil particles from entering the gravel water storage layer. The multifunctional low impact development bioretention system provided by the invention is mainly used for reducing surface and roof runoff flow, relieving internal waterlogging, removing eutrophic substances such as NH<+4>-N, TN and TP, storing water for secondary utilization, adjusting ecological climate, and the like. The effluent concentration reaches the water quality standard for surface water Class II, so that the system greatly alleviates surface and roof runoff pollution.

A device for treating roof runoff has a first tube adapted to be axially aligned with, and in fluid communication with, an outlet of a downpipe. The first tube contains a crushed calcium carbonate media. The device has a second tube in fluid communication with the first tube. The first tube and second tube are arranged such that when a flow of roof runoff from the downpipe is at or below a predetermined flow rate, the flow of roof runoff is directed into the first tube to be treated by the crushed calcium carbonate media contained therein, and when the flow of roof runoff is above the predetermined flow rate, excess flow is diverted into the second tube.

The invention discloses a cultivation matrix structure of a roof rainwater garden. The cultivation matrix structure comprises a waterproof layer, a root barrier layer, a drainage layer, a water storage layer and a planting matrix layer arranged in order from bottom to top, wherein the waterproof layer is used for being installed above a structural layer of a roof, the water storage layer includesa hollow or porous shaping part and a water absorbing material disposed inside the shaping part, and a water filtration cushion layer is arranged between the water absorbing material and the drainagelayer. The cultivation matrix structure has the advantages of being capable of accumulating rainwater, increasing the interception rate of the rainwater on the roof, saving water, environmental protection and alleviating the problem of poor drainage capacity of a city. The invention also discloses a method for constructing a roof garden. The method includes sequentially laying the waterproof layer, the root barrier layer, the drainage layer, the water filtration cushion layer, the water storage layer and the planting matrix layer. The method has the advantages that the roof garden constructedand obtained by the method has an effect of intercepting rainwater and can effectively reduce the turbidity of roof runoff.

The invention relates to a non-point source pollution control and roof runoff and diversion collection and utilization device, which comprises a strainer, a pipeline and a water collection device, and is characterized in that: the convex strainer is connected with a rainwater down pipe, and the tail end of the rainwater down pipe is connected with a hose; the tail end of the hose is connected with a diversion pipe, and the diversion pipe is positioned at the center of a water storage device; an overflow pipe is arranged on the outer wall of the upper part of the water storage device, and a first diversion valve is positioned below one side of the water storage device; the convex strainer is positioned at a water outlet of an eave gutter, and the water storage device is positioned below the convex strainer; and the installation position of the water storage device forms a position difference with the convex strainer 1. A concave strainer is arranged at the upper end of a vertical pipe,and a diversion port is positioned on the outer side wall of the upper part of the vertical pipe; a clamping seat is positioned below the diversion port and is arranged on the inner wall of the vertical pipe, a float is arranged in the vertical pipe from the lower part of the clamping seat to a transverse pipe joint and is in a cylindrical shape, and the diameter of the float is slightly smaller than that of the vertical pipe. The bottom end of the vertical pipe is fixedly arranged on a concrete base, and the concrete base is arranged at the bottom of the center of the water storage device; and a transverse pipe clings to the base, and a second diversion valve is arranged at the tail end of the transverse pipe.

The invention discloses a green roof simulation complete device composed of an automatic rainfall part, a green roof simulation part and an automatic sampling part, and belongs to the field of non-point source pollution control. The device mainly comprises: 1) the automatic rainfall part, wherein an Arduino electronic prototype platform is used as a control panel, and cooperates with a motor control element to realize automatic control of rainfall intensity and rainfall duration; 2) the green roof simulation part divided into a vegetation layer, a soil matrix layer, a permeable filter layer and a water drainage and storage layer from top to bottom, wherein the soil matrix layer and the vegetation layer can be automatically regulated and cooperatively used according to local conditions; and3) the automatic sampling part which can realize timing sampling and automatic tube replacement through a control circuit. The automatic rainfall part can automatically rain and supplement water in the dry season, the most suitable soil matrix thickness, vegetation types and the like are found through experimental research of the green roof simulation part, and biological monitoring and water quality research are carried out through the automatic sampling part. The whole process does not need to spend much manpower, and regulation of roof runoff can be achieved by one person.

The invention discloses a building drainage structure and a construction method thereof, and relates to the technical field of building drainage. The building drainage structure comprises a downpipe, an apron slope, a reservoir, a drainage ditch and a hollow ball, wherein the hollow ball expands when being heated and contracts when being cooled, the top end of the downpipe is used for receiving roof runoff, the slope top of the apron slope is connected with the bottom end of the downpipe, the reservoir is connected with the slope bottom of the apron slope, the drainage ditch communicates with the reservoir, the hollow ball communicates with a water diversion pipe, the end, away from the hollow ball, of the water diversion pipe penetrates into the reservoir, a water diversion cotton rope is arranged in the water diversion pipe, and the water diversion cotton rope penetrates out of the water diversion pipe and is buried in a soil covering layer. In sunny days, the environment temperature rises, the hollow ball expands due to temperature rise, air pressure in the water diversion pipe is reduced, or the air ball is compressed by external force, rainwater in the reservoir is sucked into the water diversion pipe and wets the water diversion cotton rope, and the water diversion cotton rope has a capillary effect, so that water can be supplied to the soil covering layer. The building drainage structure has the effect of reducing the waste of rainwater resources.

The invention provides a building and community rainwater quality-divided treatment process based on a waterfront space. The process comprises the following steps of (1) source distributed collection:draining rainwater on a building roof into a rainwater collection well through a rainwater vertical pipe, and draining rainwater on a road surface into the rainwater collection well after treatment by a source purification facility; (2) midway pipe network transportation: collecting rainwater in the rainwater collection well into a rainwater drainage header pipe; and (3) tail end centralized purification: inputting rainwater from the rainwater collection well into a tail end purification facility through the rainwater drainage header pipe for treatment. Compared with the prior art, the schemehas the advantages that initial rainwater runoff pollution can be efficiently reduced on the premise of ensuring the landscape effect of a community, natural accumulation, natural permeation and natural purification of rainwater are realized, quality-divided treatment is carried out on runoff rainwater of roads and roofs in buildings and communities, the engineering cost and the later maintenancecost are reduced, and meanwhile, the drainage safety is realized.

The invention discloses a comprehensive utilization system for transformer substation rainwater and a method. The system comprises a roof runoff of a transformer substation, an oil pool runoff, a grating, an abandoning flow, a drainage network, a firefighting reservoir, a first water pump, a firefighting water point, an accident oil pool, a second water pump, a processing device, a domestic water point, a rainwater and sewage recycling device, domestic sewage, a septic tank, a reclaimed water point and a third water pump; the grating is used for intercepting the impurities in the roof runoff and the oil pool runoff; the grating is respectively connected with the drainage network, the firefighting reservoir and an accident oil pool; the firefighting reservoir is connected with the firefighting water point; the accident oil pool is connected with a water inlet of the processing device; the processing device is connected with the domestic water point through a pipeline; the accident oil pool is connected with the water inlet of the sewage recycling device; a water outlet of the septic tank is also connected with the water inlet of the sewage recycling device; the sewage recycling device is connected with the reclaimed water point. The comprehensive utilization system disclosed by the invention not only can be used for solving the problem of water supply of the transformer substation, but also can realize zero sewage emission, zero rainwater emission or local emission of transformer substation.