WO2023037023A1 - Réservoir et agencement pour l'exploitation d'eaux de pluie sans pompe ni consommation d'énergie - Google Patents

Réservoir et agencement pour l'exploitation d'eaux de pluie sans pompe ni consommation d'énergie Download PDF

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Publication number
WO2023037023A1
WO2023037023A1 PCT/ES2022/070439 ES2022070439W WO2023037023A1 WO 2023037023 A1 WO2023037023 A1 WO 2023037023A1 ES 2022070439 W ES2022070439 W ES 2022070439W WO 2023037023 A1 WO2023037023 A1 WO 2023037023A1
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WO
WIPO (PCT)
Prior art keywords
tank
rainwater
overflow
tanks
filling
Prior art date
Application number
PCT/ES2022/070439
Other languages
English (en)
Spanish (es)
Inventor
Marc Fandos Ardite
Original Assignee
Marc Fandos Ardite
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 Marc Fandos Ardite filed Critical Marc Fandos Ardite
Publication of WO2023037023A1 publication Critical patent/WO2023037023A1/fr

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Classifications

    • 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
    • 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 invention of this document falls within the sector of the design of rainwater harvesting systems.
  • the objective is to optimize the reuse of rainwater for its subsequent use in toilets or urinals, minimizing the energy consumption required in the usual systems with pumping from buried tanks.
  • nZEB Nearly Zero Energy Building
  • the water is collected in elevated areas of the building, it is conducted by gravity towards the lower levels of said building, to later be raised by pumping to intermediate levels, where the water had already circulated during its collection.
  • the invention presented below aims to eliminate this need for energy consumption, taking advantage of the potential energy that rainwater has at its collection points.
  • one or several drains installed on a roof or in gutters have a protective element that prevents the passage of solids that rainwater could drag (leaves, gravel, butts, etc.), depending on the type of roof and its surroundings: if it is passable or not passable, if it has gravel or not, etc.
  • the outlet from the drains is led to a self-cleaning filter installed upstream of the tank located at the highest level inside the building.
  • the filter has a sieve to filter out the smallest particles, so that the rainwater that reaches the tank is suitable for use in toilets and urinals.
  • the tanks have the following connections: a rainwater inlet; a pressurized water inlet for automatic filling in case of not having rainwater; a flush outlet to toilets and urinals; an overflow outlet, to conduct excess rainwater to the tank located immediately below, at a lower level; an emergency overflow outlet; an outlet to empty the tank.
  • the tank also has pre-punched holes for the connection of the level control, for the connection of an aeration valve if necessary, for the connection of a possible external treatment system (biological or chemical), or other need that could be considered.
  • the outlet overflow, the emergency overflow, or both may be connected to the rainwater drainage network.
  • the tank located at the highest altitude will initially fill up.
  • the immediately lower tank will begin to fill. And so on, until the last tank pours the excess water into the rainwater drainage network.
  • the tanks have an adjustable level control to ensure that there is always water available. When the minimum level is reached, the level control will open the solenoid valve so that the water from the pressure filling circuit enters, and it will close the solenoid valve when the maximum level is reached.
  • each tank may, in turn, have a normally closed manual bypass, in case it is necessary to take the tank out of service (as long as the mechanisms of the sanitary devices are suitable to work at the pressure of fill net).
  • the emergency overflows must be connected to a ventilated downspout, previously inserting a siphon to prevent the return of odors from the rainwater drainage network, and a vent to prevent the siphon from emptying.
  • the drainage pipes and the waste outlet of the self-cleaning filter will also be connected to this ventilated downspout, and it will be led to the rainwater drainage network.
  • the outlet pipes of the drains must also be connected to a ventilated downpipe.
  • a ventilated downpipe In facilities where at least one of the emergency overflows does not have a sufficient level to connect to the building's gravity evacuation network, a pumping well must be provided, and an independent ventilated downpipe that conducts the water discharged through emergency overflows. emergency and emptying that cannot be evacuated by gravity.
  • Figure 1 Diagram of the installation with two levels of accumulation.
  • FIG. 1 Front elevation view of the tank.
  • Figure 3 Plan view of the deposit.
  • Figure 4 Side elevation view of the tank.
  • Figure 5 Sectional view of the plant of the deposit.
  • the installation must comply with the requirements and conditions indicated in the UNE-EN 16941-1 standard, or the current equivalent standard.
  • the drains (1) or collection points must have a protective element (3) that prevents the passage of solid particles, which due to the type of cover (2) could be foreseen.
  • a protective element (3) that prevents the passage of solid particles, which due to the type of cover (2) could be foreseen.
  • the passage of cigarette butts, or gravel whose minor dimension is at least 16mm should be avoided.
  • the self-cleaning filter (4) (or set of filters in series) will preferably be installed in the downspout, and must prevent the passage of solid particles with a diameter greater than 1 mm.
  • the tank (5) will be built by fusion and moulding, preferably 100% recyclable plastic material, with a general orthohedral shape, notwithstanding that its faces are not smooth for reasons of structural rigidity.
  • the cuboid shape allows minimizing the installation space and volume required for the same useful capacity, optimizing transportation and fixing, and making it easy to install pipes or accessories inside if necessary.
  • Its lid (14) will be large to easily carry out maintenance and cleaning tasks inside the tank, it will fold down with at least two hinges (16) on the long side closest to the drain hole (9), it will have anchors (18 ) to be able to use padlocks, and it will have a continuous ethylene propylene diene EPDM rubber gasket (19) that ensures tightness between the cover and the tank around the entire perimeter of the manhole.
  • pre-cut holes (20) which allow the installation of aeration valves, level probes, level meters in situ, cable glands or fittings for the passage of cables, or pipes for chemical or biological treatment, for example. It will also have position anchors (27) that allow its position to be fixed with respect to nearby enclosures and/or support surface.
  • the base of the tank (22) must have a gable slope, placing the low point next to the drain hole (9), and the high point in the opposite corner.
  • the connections of the rainwater inlet pipe (23), of the outlet overflow (6) to another tank (5) and of the emergency overflow (8) that is connected to the ventilated downspout (7), have been provided with flanges for two reasons: to be able to easily adapt the pipe diameters depending on the flows, speeds and useful section of the pipes, and to easily allow the installation of a bypass between the rainwater inlet and the outlet to the lower tank, when necessary because the tank must be changed, or simply because it is installed after the commissioning of the installation.
  • connections of the filling pipe (13), drain hole (9), and discharge pipe (25) to sanitary devices (15) have been provided smooth, so that the user can choose between flanged or threaded.
  • the rainwater inlet (23) will be conducted with a curve (23a) and a straight section (23b) inside the tank (5), which flows below the minimum fill level.
  • the purpose is to avoid the transmission of odors, avoid disturbances in possible residues on the surface of the water, and minimize turbulence within the tank that may affect level control.
  • the minimum filling level determined by the lower interior generatrix of the discharge pipe (25), must be a few cm above the end of the straight section (23b) to ensure that the siphoning between tanks is maintained.
  • the filling pipe (13) must be at least a few cm above the minimum water level, to facilitate visual verification of the filling system's operation.
  • the rainwater inlet connections (23) and the emergency overflow (8) will be as high as possible that the manufacturing conditions of the tank allow. In the first case, to keep the pipe prior to the entrance free of stagnant water; in the second case, to maximize the useful capacity of the deposit with respect to the total volume.
  • the lower generatrix of the emergency overflow (8) will coincide with the level corresponding to 70% filling of the outlet overflow (6) towards the lower tank, to prevent the latter from entering the load and working in a turbulent regime.
  • the level control (11) of each tank (5) regardless of whether there is a controller per tank or a controller for several tanks, will be individually adjustable to optimize its operation according to needs and acts on the filling solenoid valve (12).
  • the hole of the discharge pipe (25) towards the sanitary devices (15) must be a few cm above the base, to avoid dragging possible sediments from the stored water towards the pipes that supply them, and the discharge valve ( 26) must have a full bore section, to minimize the concentration of residual particles over time.
  • the pipes of both sanitation and supply networks will preferably be made of recyclable materials such as Polypropylene (PP) or Polyethylene (PE).
  • PP Polypropylene
  • PE Polyethylene
  • Both the number of drains (1) that are led to the tanks (5), as well as the diameters of the installation pipes and the admissible flow through the filters, must be calculated according to the project conditions: collection surfaces, rainfall, location tanks, pipeline layouts, etc.
  • each tank must indicate the maximum flow rate per overflow that each outlet diameter would admit within the admissible ranges. This will allow the designer of the installation to determine the maximum flow of rainwater contribution to the deposits.
  • Water outlets must always be considered by gravity and with partial use of the pipe section, while the inlet could come from a siphonic system, with high speeds and full use of the pipe section.
  • each tank (5) has a normally closed manual automatic filling bypass (28), in case it is necessary to take the tank out of service (as long as the mechanisms of the sanitary ware are suitable for work at the pressure of the filling network).

Landscapes

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

Abstract

Réservoir pour l'exploitation d'eaux de pluie sans pompe ni consommation d'énergie, caractérisé en ce qu'il comprend : - une entrée d'eau de pluie (23) qui est conduite par une section courbe (23a) et une section droite (23b) vers l'intérieur du réservoir (5) débouchant au-dessous du niveau minimum de remplissage. -un tuyau de décharge (25) vers les appareils sanitaires (15). -un tuyau de remplissage (13) avec de l'eau sous pression, qui reste au-dessus du niveau minimum d'eau. - un orifice de vidange (9). -un trop-plein de sortie (6) qui relie les réservoirs en cascade. -un trop-plein d'urgence (8) dont le générateur inférieur coïncide avec le niveau correpondant au 70% de remplissage du trop-plein de sortie (6) vers le réservoir inférieur. -une base du réservoir (22) avec une pente à deux pans où le point bas se situe proche de l'orifice de vidange (9) et le point haut dans l'angle opposé. -un couvercle (14) rabattable avec au moins deux charnières (16) dans le côté long le plus proche de l'orifice de vidange (9) avec des ancrages (18) pour assurer sa fermeture avec des cadenas et un joint d'étanchéité en caoutchouc d'éthylène propylène diène EPDM (19) entre le couvercle et le réservoir qui couvre tout le périmètre de l'unité.
PCT/ES2022/070439 2021-09-07 2022-07-08 Réservoir et agencement pour l'exploitation d'eaux de pluie sans pompe ni consommation d'énergie WO2023037023A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESU202131779 2021-09-07
ES202131779U ES1286180Y (es) 2021-09-07 2021-09-07 Depósito y disposición para el aprovechamiento de aguas pluviales sin bombeo ni consumo de energía

Publications (1)

Publication Number Publication Date
WO2023037023A1 true WO2023037023A1 (fr) 2023-03-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2022/070439 WO2023037023A1 (fr) 2021-09-07 2022-07-08 Réservoir et agencement pour l'exploitation d'eaux de pluie sans pompe ni consommation d'énergie

Country Status (2)

Country Link
ES (1) ES1286180Y (fr)
WO (1) WO2023037023A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300855A1 (fr) * 1975-02-13 1976-09-10 Ernst Wilhelm Bassin a deversoir d'orage
KR20150138127A (ko) * 2015-08-21 2015-12-09 이우성 원자력 발전용 핵폐기물처리 원자력 발전소 설비의 이중구조 가압수형원자로설비

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300855A1 (fr) * 1975-02-13 1976-09-10 Ernst Wilhelm Bassin a deversoir d'orage
KR20150138127A (ko) * 2015-08-21 2015-12-09 이우성 원자력 발전용 핵폐기물처리 원자력 발전소 설비의 이중구조 가압수형원자로설비

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Publication number Publication date
ES1286180U (es) 2022-02-08
ES1286180Y (es) 2022-05-06

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