EP3841256A1 - Appareil et procédé d'atténuation des eaux de pluie - Google Patents

Appareil et procédé d'atténuation des eaux de pluie

Info

Publication number
EP3841256A1
EP3841256A1 EP19782663.9A EP19782663A EP3841256A1 EP 3841256 A1 EP3841256 A1 EP 3841256A1 EP 19782663 A EP19782663 A EP 19782663A EP 3841256 A1 EP3841256 A1 EP 3841256A1
Authority
EP
European Patent Office
Prior art keywords
rainwater
valve
vessel
outlet
remotely controlled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19782663.9A
Other languages
German (de)
English (en)
Inventor
Andrew Turner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydrocells Ltd
Original Assignee
Hydrocells Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hydrocells Ltd filed Critical Hydrocells Ltd
Publication of EP3841256A1 publication Critical patent/EP3841256A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
    • E03B3/03—Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E03B2001/047—Greywater supply systems using rainwater
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108—Rainwater harvesting

Definitions

  • the present invention relates to an apparatus and method for rainwater attenuation and relates particularly, but not exclusively, to a Sustainable Drainage System (SuDS) for use in between a building, such as a domestic property, and a surface water sewerage system.
  • a Sustainable Drainage System SuDS
  • Devices such as water butts can be provided to collect rainwater from the roof of the building. This assists in rainwater attenuation, that is the delaying of the rainwater from transferring from hard surfaces, such as roofs, into the freshwater sewerage system.
  • water butts generally suffer from the disadvantage that they are small in volume and once filled overflow. All additional rainwater then flows into the freshwater sewerage system and the water butt is no longer providing any attenuation of the rainwater.
  • the rainwater gathered from a water butt can only really be used via a watering can.
  • Preferred embodiments of the present invention seek to overcome or alleviate the above described disadvantages of the prior art.
  • a rainwater attenuation apparatus comprising: a vessel for containing a volume of liquid, having an inlet for receiving rainwater from a rainwater collection system and a first outlet for connection to a sewerage system; and a remotely controlled first valve for controlling the flow of collected rainwater through said first outlet.
  • the advantage is provided that an organisation responsible for the sewerage system is able to create capacity in a widespread rainwater attenuation network in advance of forecast heavy rain.
  • the vessels can each hold a large volume of water collected from the buildings' hard surfaces such as rooves. Under normal circumstances, this collected rainwater can be used for any suitable purposes. For example, in a domestic building the collected rainwater can be used for watering the garden.
  • the vessel can be emptied by opening the remotely controlled first valve and draining most or all of the water from the vessel.
  • the vessel comprises a plurality of tubes.
  • the advantage is provided that the weight of water in each tube is not very large and the thickness of each tube can be significantly less than would be necessary to form a single vessel containing the same volume as a multiplicity of tubes.
  • the use of tubes allows on-site construction, making the transportation of the vessel significantly easier than where a single large vessel is used.
  • Tubes which can be used in this invention include, but are not limited to, guttering downpipe tubes especially those with a square cross-section. These tubes are already in production removing production set up costs and the production costs for extrusion of these tubes is significantly less than for moulding of large single vessels. Also, in the event of damage occurring to one of the tubes the rate of flow of water from that hole should not increase as the tubes are unlikely to allow propagation of the hole.
  • the plurality of tubes may be arranged in a grid formation and connected by a manifold.
  • the advantage is provided that different arrangements of the tubes can be easily provided to create different shapes of vessel to suit different situations. For example, an arrangement of one or two side-by-side tubes lined up along the whole length of a building and extending up the whole height can produce a vessel with a very large volume but which only adds a very small addition to the length or width of the building.
  • the tubes comprise a plurality of partial tube lengths connected end to end.
  • partial length of tube By using partial length of tube, the advantage is provided that sections of the vessel can be formed and connected to one another. For example, a grid network of tube lengths can be formed into a block and these blocks stacked on top of one another with suitable ceiling provision provided between them. This in turn allows very large vessels to be created with large storage capacities. These taller vessels also create a greater pressure which can be utilised via the second value and outlet to power a hose or grey water system.
  • the apparatus may further comprise a second outlet and a second valve for controlling the flow of collected rainwater through said second outlet.
  • the advantage is provided that the water contained in the vessel can be extracted or other uses, such as watering the garden or to a grey water system of a building. This in turn saves water and cost for the building owner particularly where water usage is metered .
  • the second valve may comprise a tap and/or a hose connection .
  • the advantage is provided that a garden hose can be attached to the outlet.
  • the further advantage is provided that the water pressure to the hose can be sufficiently high for use as though a garden hose connected to mains water.
  • the water contained in the apparatus can be used more easily for many more purposes that a water butt of the prior art.
  • the apparatus may further comprise an overflow and the overflow may be connected to the sewerage system.
  • the remotely controlled first valve is operated via a wireless connection and more preferably comprises Wi-Fi.
  • the first valve comprises a variable opening valve which may have a maximum opening diameter of at least 40mm.
  • a plurality of rainwater attenuation apparatus comprising a vessel for containing a volume of liquid, having an inlet for receiving rainwater from a rainwater collection system and a first outlet for connection to a sewerage system and a remotely controlled first valve for controlling the flow of collected rainwater through said first outlet; connecting said apparatuses to a plurality of rainwater collection systems on a plurality of buildings;
  • the first valve comprises a variable opening valve and the method comprises the further step of selecting at least some of said plurality of rainwater attenuation apparatuses and substantially fully opening said variable opening valves.
  • Figure 1 is a schematic representation of a water attenuation apparatus and system of the present invention
  • Figure 2 is a perspective view of an embodiment of the present invention
  • Figure 3 is a close-up view of a portion of the apparatus of figure 2;
  • Figure 4 is a schematic sectional side view of an alternative embodiment of the present invention.
  • Figure 5 is a schematic plan view of a portion of the embodiment of figure 4.
  • Figure 6 is a sectional side view of an alternative portion of the embodiment of figure 4.
  • Figure 7 is a perspective view of a portion of the apparatus of figure 2.
  • a water attenuation apparatus 10 includes a vessel 12 for containing a volume of liquid, in particular rainwater 14.
  • the vessel has an inlet 16 for receiving that rainwater from a rainwater collection system 18 such as a gutter 20 attached to a building (not shown) which flows via a downpipe 22 through the inlet 16 and into the vessel 12.
  • a first outlet 24 from the vessel 12 is also provided and this is used to connect the vessel to a sewerage system.
  • the details of the connection to the sewerage system depend on the circumstances where the vessel is located and the building to which it is connected. However, this connection is preferably to a surface water sewerage system which directs rainwater from buildings and roads to a watercourse such as a river.
  • the details of the connection to the sewerage system, whether direct or indirect, are not part of this invention and likewise the connection of the rainwater collection system 18 does not form part of this invention, as long as rainwater from hard surfaces are directed to the vessel.
  • a remotely controlled first valve 28 which is used to control the flow of collected rainwater 14 contained within the vessel 12 through the first outlet 24 and on into the surface water, sewerage system 26.
  • the first valve in this embodiment is a variable flow valve having an maximum open diameter of up to 40mm allowing the flowrate through the valve to be varied by changing the size of the opening through which the water flows.
  • a power supply in the form of a battery 30 is provided which is most preferably recharged via a solar panel 32 located on top of the apparatus 10.
  • a processor 34 controls the opening and closing of the first valve 28 in response to transmitted signals received by a receiver 36.
  • the receiver 36 can be any suitable signal receiver including, but not limited to, any radio frequency receiver, a mobile telephone network receiver or a Wi-Fi receiver.
  • the receiver 36 could be replaced with a wired connection to the Internet, for example, via a router located in the building to which the apparatus 10 is connected.
  • the battery 30 and recharging solar panel 32 can be replaced with any other suitable power supply which can provide sufficient energy to operate the processor 34 and open and close the valve 28.
  • a pressure metre 38 at the base of the vessel is used to determine the pressure of the water in the vessel 10 which can be used to estimate the volume of water contained therein.
  • a flowmeter 40 is also provided to calculate the amount of water which has passed through the vessel 10.
  • an overflow 42 which is directly connected to the surface water sewer 26. This overflow limits the total volume of water that can be contained within the vessel to an upper limit indicated by the waterline 44.
  • the embodiment of the rainwater attenuation apparatus 10 shown therein has the vessel 12 formed from a plurality of sub-vessels in the form of tubes 50 which are connected together by a manifold 52 (which is shown schematically in figure 4) .
  • the manifold 52 has a plurality of channels 54 which are connected together and joined to the outlet 24 ahead of the remotely controlled first valve 28 (which is not shown in figure 4) .
  • the tubes are set out in a grid arrangement in the manifold 52, for example, as schematically shown in figure 5, an arrangement of 4x4 tubes are used.
  • These tubes 50 are of the type used in domestic drainage, such as those used in downpipes from guttering. The use of pipes with a square cross-section of this type makes the most efficient use of space by minimising the gaps between the tubes 50.
  • a second outlet 56 which is provided to allow the draw off of water from within the vessel 12.
  • the second outlet 56 is provided with a second valve in the form of a tap 58 and is most preferably provided with a hose pipe connector, such as a snap-fit connector, allowing a hosepipe to be used for distribution of the collected rainwater 14.
  • the vessel can be connected to grey water system of a house and the pressure created by the height of water can be sufficient to use the rainwater for refilling toilets for flushing.
  • FIG 7 a more detailed example of an arrangement 60 of the tubes 50 is shown which allows shorter lengths of tubing to be formed together into blocks which can be stacked together as shown in figure 2 to create a significant height of water contained within the vessel 12.
  • This has the advantage that the pressure of water contained within a vessel which has significant height, for example, one or two storeys of a building, is sufficient to push water through a hose at a rate which is similar to that seen with domestic mains pressure, allowing it to be used effectively in the garden for many purposes.
  • the tubes 50 shown in figure 7 are formed into an 8x8 arrangement with a base 62 and top 64 which are identical or different depending on their intended use.
  • the topmost top 64 acts has a roof and has the solar panel 32 mounted thereon.
  • the bottommost base 62 acts as the manifold 52.
  • the tops and bases have recesses 66 (see figure 5) which are shaped to receive the tubes 50. For onsite construction the recesses are partially filled with a suitable sealant such as silicone 66 and the tubes 50 inserted.
  • the top 64 and base 62 are connected by tie rods 68 which pull the top and base into engagement with the ends of the tubes ensuring a waterproof seal.
  • Adjacent arrangements 60 are connected using bolts 70 with suitable seals 72, such as a rubber mat perforated with sixty-four square holes, located between. Each arrangement 60 is formed separately on site and then the four arrangements are stacked on top of each other and connected to the manifold 52 as seen in figure 2.
  • the apparatus operates with the remotely controlled first valve 28 in a default closed condition.
  • the apparatus operates with the remotely controlled first valve 28 in a default closed condition.
  • rainwater entering one tube is distributed amongst all of the tubes via the channels 54 in the manifold 52 and, as a result, the tubes fill uniformly until they reach the height of the overflow 42 which extends up through one of the tubes 50.
  • the vessel has reached its maximum capacity. Typically, this capacity for a device of the type shown in figure 2 is 1000L. Any additional rainwater entering the vessel flows through the overflow, bypassing the vessel and entering the surface water sewer 26.
  • Water can be drawn from the vessel via the second outlet 56 by opening and closing the second valve, tap 58.
  • the tubes 50 of the vessel 12 are full the pressure is sufficient to operate a garden hose. Water exiting the apparatus through the second outlet will not directly enter the freshwater sewerage system and will most typically be used when rain is not expected for purposes like watering the garden. As a result, the objective of rainwater attenuation is achieved and further capacity is created within the vessel for receiving and attenuating further rainwater.
  • the apparatus 10 is one of a multiplicity of such apparatuses connected to buildings in a network at known locations with the outlets of these apparatuses connected into the surface water sewerage network of a utility provider.
  • This network of apparatuses is monitored and controlled by a computer system 80 of the utility provider.
  • the volume of water stored in each vessel can be determined via the water pressure metre 38.
  • the receiver 36 is in two-way communication with the computer system 80 of the utility provider via the receiver's connection to a router 82 and the Internet 84. This data for the multiplicity of apparatuses 10 allows the utility provider to know the total water stored at that time.
  • the computer system 80 of the utility provider receives information from a weather forecaster computer system 86.
  • a weather forecaster computer system 86 When that forecasting indicates a rainfall exceeding predetermined criteria in an area containing a multiplicity of the apparatuses 10, decision is taken, either manually or automatically, to create capacity within the network of rainwater attenuation apparatuses to receive and store a predetermined volume of rainwater. To do this a portion of or all of the network of apparatuses are partially or completely emptied. The time at which this emptying takes place depends in part upon the total volume of water stored so that this water has passed through the sewerage system before the next rainwater arrives.
  • This emptying is achieved by sending a signal from the computer system 80 of the utility provider via the Internet 84 and the respective routers 82 to the receivers 36.
  • the processors 34 receiving the signal from the receiver 86 causes the first valve to open to a predetermined diameter, typically providing an aperture equivalent to a 10-12mm bore through the valve, allowing the rainwater contained within the tubes 50 of the vessel 12 to empty via the outlet 24 flowing into the surface water sewerage system 26.
  • this process is undertaken sufficiently far in advance of the forecast rain, this water can have passed through the sewerage system and into watercourses long before the forecast rain water arrives.
  • Once sufficiently empty the first valve 28 returns to the default closed condition.
  • the vessel 12 refills, thereby attenuating that volume of water for later discharge as previously described.
  • the utility provider responsible for the surface water sewerage system is also a supplier of water.
  • the use of the second outlet 56 reduces the volume of mains water used thereby potentially saving money for the household. Because the apparatus 10 provides further advantages for the utility operator further financial incentives can be provided to the household to encourage the installation and use of such apparatuses.
  • the system can also be used to maintain and clean the sewerage system open opening the variable bore first valve up fully (to 40mm bore) to cause the maximum flow of water though the system to act as a purge.
  • Sections of the sewer can be purged by the coordinated opening of the apparatuses of various buildings along that section of the sewer. This can be further enhanced by coordinating it with a light flow from rainwater in the system from rain occurring as the purge takes place thereby further increasing the flow. This causes a rush of water to that section of the sewer without risking flooding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sewage (AREA)

Abstract

L'invention concerne un appareil (10) et un procédé d'atténuation des eaux de pluie. L'appareil (10) comprend un récipient (12) pour contenir un volume de liquide et ayant une entrée (16) pour recevoir de l'eau de pluie provenant d'un système de collecte d'eau de pluie (18). L'appareil comprend également une première sortie (24) pour permettre la connexion à un système d'assainissement d'eau de surface. L'écoulement d'eau de pluie collectée à travers ladite première sortie (24) est déterminé par une première soupape commandée à distance (28). Une seconde sortie (56) et une vanne de robinet (58) permettent d'évacuer l'eau de pluie pour d'autres utilisations. Le récipient (12) est formé à partir d'une pluralité de tubes (50) disposés dans une formation de grille et reliés par un collecteur (52). Des faisceaux de longueurs de tube partielles sont reliés bout à bout pour créer une hauteur et un volume significatifs du récipient.
EP19782663.9A 2018-08-20 2019-08-19 Appareil et procédé d'atténuation des eaux de pluie Withdrawn EP3841256A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1813517.8A GB201813517D0 (en) 2018-08-20 2018-08-20 Improved rain water management apparatus
PCT/GB2019/052319 WO2020039172A1 (fr) 2018-08-20 2019-08-19 Appareil et procédé d'atténuation des eaux de pluie

Publications (1)

Publication Number Publication Date
EP3841256A1 true EP3841256A1 (fr) 2021-06-30

Family

ID=63668262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19782663.9A Withdrawn EP3841256A1 (fr) 2018-08-20 2019-08-19 Appareil et procédé d'atténuation des eaux de pluie

Country Status (3)

Country Link
EP (1) EP3841256A1 (fr)
GB (2) GB201813517D0 (fr)
WO (1) WO2020039172A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2021359585A1 (en) * 2020-10-16 2023-06-15 Universität Stuttgart Apparatus for absorbing precipitation water and for water evaporation
CN113073705A (zh) * 2021-03-23 2021-07-06 江苏澳洋生态园林股份有限公司 一种应用于平屋面及庭院雨水收集的雨水收集毯

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2912161B1 (fr) * 2007-02-06 2009-04-10 Jean-Claude Fonvieille Station hydraulique de recuperation, de gestion et de distribution des eaux pluviales
GB2457695A (en) * 2008-02-21 2009-08-26 E Van Johnson Rainwater storage system
US20110036783A1 (en) * 2009-08-13 2011-02-17 Bart Chezar System for reducing overflow discharges from combined sewer system
GB2483522B (en) * 2010-10-21 2012-08-15 Mark Denis Blakes Rainwater and flood relief system

Also Published As

Publication number Publication date
GB201813517D0 (en) 2018-10-03
WO2020039172A1 (fr) 2020-02-27
GB202103749D0 (en) 2021-05-05
GB2591395B (en) 2023-02-01
GB2591395A (en) 2021-07-28

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