"Roof Tank"

Abstract

Roof tank. This innovation allows for the supply of rainwater to sanitary fixtures (4) without the use of a lift pump. A system for supplying and filling sanitary fixtures in a building is characterized in that it comprises at least one gutter (1) on the roof, at least one storage tank (2) installed in habitable or non-habitable parts of the building, and pipes (3) between the gutter and the tank and between the tank and the sanitary fixtures (4), the gutter or at least one of the gutter being located upstream of the tank, and the tank(s) upstream of the sanitary fixtures (4), allowing for gravity flow. Figure for the abbreviation: Fig 1

Description

Title of the invention: Roof tank

[0001] At a time when water shortages are being felt, the need for water storage is becoming increasingly important.

[0002] As an Architect, I am confronted with the desire of the project owners to store this rainwater. Thus we can see the increase in the installation of water storage systems around buildings.

[0003] The main purpose of this water storage is to be reused for watering gardens. But it is sometimes reused to supply sanitary facilities via lifting pump systems.

[0004] These systems depend on an electrical supply (using one polluting resource to circulate another) and are therefore by definition energy-intensive and uneconomical. This hinders users' willingness to use this system.

[0005] The proposed innovation concerns the supply and filling of sanitary equipment (toilets, washing machines, dishwashers, etc.) with rainwater without the use of a lifting pump and therefore without electricity.

[0006] All buildings have, by definition, pitched or non-pitched roofs (flat roofs), rainwater flows from the roof into the gutters and downspouts to then be discharged into public rainwater networks, into irrigation channels or even into storage tanks located at the foot of the buildings.

[0007] The innovation that I propose makes it possible to recover rainwater in the upper part of roofs by implementing intermediate gutters located directly above the interior parts of the building (habitable or non-habitable parts).

[0008] These gutters then distribute rainwater inside the building to supply storage tanks (Roof Tanks) installed in the habitable or non-habitable parts (loft space, attics, etc.) of the buildings.

[0009] The gutters are connected to a water tank by watertight pipes.

[0010] Rainwater recovery gutters are integrated into the roof. With the compliance with the rules set out in the DTU (Unified Technical Construction Documents).

[0011] These storage tanks can be of any type (flexible, rigid) provided that, through their installation in the building, they allow the sanitary appliances to be supplied by gravity flow through a network of sealed pipes.

[0012] The overflow from the tanks is discharged into the lower part of the building (house or other) via sealed pipes towards the rainwater drainage network.

[0013] This is the innovation, the installation of the gutter and the tank combined with the force of gravity making it possible to avoid constraints from the lifting pumps.

[0014] The innovation presented here comes from the composition of a common construction element (gutter) positioned in an unusual location, the use of a water storage system, and the Earth's gravity.

[0015] In order to reduce the turbidity of the water (content of suspended particles) filters are installed

[0016] in the pipes, upstream of the sanitary equipment.

[0017] The innovation concerns the recovery of rainwater in compliance with the regulations of the decree of August 28, 2008.

[0018] The tanks of the sanitary appliances can be supplied both by the storage tank(s) and by the traditional water supply (bypass system). This innovation can be used in all types of constructions containing sanitary appliances, whether in the renovation of buildings (asbestos removal, energy renovation of roofs, etc.) or in new construction.

[0019] The figure represents the traditional principle of rainwater supply to sanitary appliances via a lifting pump and the innovative principle.

[0020] Traditional principle

[0021] Traditional rainwater harvesting (8)

[0022] Rainwater collector or recovery tank (9)

[0023] Lift pump (10) required

[0024] Electrical Input

[0025] Lift pump (10)

[0026] Innovative principle

[0027] Improvement of the Existing concept.

[0028] Creation of a gutter(s) in the roof (1)

[0029] Potable water supply to the tank in the event of a shortage, bypass type (7).

[0030] Filter (5) (Water turbidity)

[0031] Gravity filling of sanitary appliance tanks.

[0032] No lifting pump.

[0033] No electrical supply.

[0034] Evacuation of overflow to wastewater networks or tanks (6).

[0035] Possibility of installing a lifting pump from the tank.

Claims

Claims

1. System for supplying and filling sanitary appliances in a building characterized in that it comprises at least one gutter (1) in the roof, at least one storage tank (2) installed in the habitable or non-habitable part of the building, pipes (3) between the gutter and the tank and between the tank and the sanitary appliances (4), the or at least one gutter being located upstream of the tank, and the tank(s) upstream of the sanitary appliances (4), allowing a gravity flow.

2. System according to claim no. 1, characterized in that filters (5) are installed upstream of the sanitary equipment (4), in order to reduce the turbidity of the water.

3. System according to claim 1 or 2 characterized in that it comprises an overflow (6) from the storage tanks (2) discharged into the lower part of the construction via sealed pipes (3) towards the rainwater drainage network.

4. System according to any one of claims 1 to 3, characterized in that the storage tank (2) is installed in the attic or loft of the building.

5. System according to any one of claims 1 to 4, characterized in that the storage tank (2) is flexible.

6. System according to any one of claims 1 to 4, characterized in that the storage tank (2) is rigid.

7. System according to any one of claims 1 to 6, characterized in that said at least one gutter (2) is installed in an intermediate position of the roof.

8. System according to any one of the preceding claims 1 to 7, characterized in that it is equipped with a Bypass system (7) allowing the sanitary appliances (4) to be supplied by the storage tank (2) and by the traditional water supply.

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