NL1009362C1 - Usage of rainwater coming from roofs for non-drinking purposes e.g. toilet flushing, car washing, water and general cleaning involves reservoirs that can be coupled together so that large amounts of water can be stored - Google Patents

Abstract

With the installation of the system in an average dwelling house a roof surface of 50 square meters is available, so that the yearly volume of rainwater collected is 0.8 cubic meters per square meter, so that plus or minus 40 cubic meters of water can be collected, enough for four house occupants for toilet flushing on a yearly basis. Reservoirs (1) are used for collecting the water from the roofs and can be coupled together, so that a large quantity of water can be stored.

Description

Invention aims; the pursuit of environmentally conscious use of drinking water and using rainwater which is collected from the roofs of all kinds of buildings, such as homes by means of a collection system, for use for non-consumer purposes such as toilet flushes, car washes, sprinkling and cleaning applications.

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Reservoir, tank according to the invention is intended and suitable for installation under roof boarding of sloping roofs, under floors in crawl space, above toilet block, in event buildings, for example, where a lot of water becomes available and has to be stored in peak periods during peak periods.

10 Tank / reservoir is constructed in such a way that it can be set up in existing homes and buildings with components of such size that so-called attic stair hatches, floor hatches, etc. can be passed and that reservoirs after transport have been placed where rainwater storage functions must be can be built.

Can be made to measure in any desired volume volume according to sketch. Reservoirs 15 inner jacket made of reinforced thermoplastic film and welded in rectangular shape. Ground surface 500 mm. x length unlimited. According to drawing "1" equipped with spigots welded at the ends / supply "2", overflow spigot "3", make-up water supply tap "4", float tap water supply spigot "5" and any drain installed at the side and welded at the end to consumer "6". Reservoir "1" fully foldable and fitted with suspension loops "7" and carrying rods "8" for the function of hanging up unfilled reservoir (s). Side above float switch of welded 'access manhole' with sleeve "9" with regarding the accessibility of float switch "5" regarding installation and maintenance.

Reservoir is supported all round by means of EPS foam moldings "11", which are constructed in such a way that after mounting while the reservoir is filled, they form a very strong supporting frame in order to be able to absorb the weight of the water including the lateral pressure.

The construction also has a heat / cold insulating function, against freezing in winter and against inflow noises (acoustically), where it is important to place accommodation spaces in persons. The reservoir is equipped with EPS foam block manhole closure which is loosely placed in manhole ”10".

30 Reservoir ground surface and height has been chosen in such a way that installation can take place as close as possible to / against the supporting wall and can be installed in spaces directly under roof decking with sloping roofs in unused spaces. All connection taps are threaded so that durable leak-proof connections can be easily made without the use of tools.

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Operation: When placed under roof boarding, the pipe "2", which is connected to the gutter in reservoir "1", may or may not be connected via a self-starting E-submersible pump "12" to fill the reservoir if the gutter level is below the tank reservoir. As soon as the level in the reservoir has reached the maximum position, when overfilled, the excess water will drain via "3" to the gutter / water-drain system (sewer).

If water is "requested" in toilet reservoir, due to downflow, the toilet reservoir connected to drain tap "6" will admit water to lower reservoirs without any energy consumption. Tap "13" is a leveling tap for coupling several tanks.

When placing reservoirs in the crawl space, water will flow into the tank via downward flow of water through a connected roof gutter by means of an injection spigot ”2” and via a coarse filter to be placed. "12" automatic on. In case of pressure loss on supply line to toilet water reservoir, the pump will only be switched on for a short time to fill toilet reservoir (s), after which the pump will automatically switch off again after pressure build-up in the supply line. short 15 power consumption duration.

In both cases, the diameter of the supply pipe from the tank / reservoir water to the toilet is as large as possible in order to have a full toilet reservoir very quickly. Supplement water pipe "4" is directly connected to water pipe and fills the tank / reservoir at minimum water level in storage reservoir during dry periods or during periods of heavy consumption, so that there is always 20 water available for toilet flushing and / or other use (use of water mains ).

Invention in combination with other specific components ensures an environmental saving. A single-family terraced house in the Netherlands has a roof area, measured horizontally of ± 50 m2. Rainwater receives 0.8 m3 / m2 per year, so that 40 m3 of water can be collected per year. A 4-person household uses ± 30-40 m3 for toilet flushing water, so that if 25 rainwater is collected; 40 m3 of drinking water can be saved.

For large buildings and / or where many people come together, such as (sports club) canteens, party centers, cinemas, catering establishments, etc., there is / is always a relatively large amount of roof space available, so it is possible to collect a lot of water. In these situations and with the use of a relatively very cheap solution as the invention, very much drinking water can be saved. Environmental savings are additionally achieved by less discharge of polluted surface water (40 m3 per household per year minimum).

Furthermore, in rainwater-rich periods, when applied massively, there is an extra dimension with regard to the accumulation of large amounts of rainwater, over which in lower areas such as polders, water management with regard to groundwater level becomes more manageable and peak load on sewer systems is leveled.

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By surface choice of storage reservoir; length, width, height and placement close to the bearing walls, a floor surface weight of 200 kg / mJ is created. Placement of reservoirs is therefore practically possible in all existing structures, either under roof boarding, or directly above the supporting walls of toilet bioces, or in crawl spaces, or in arrangements next to 5 buildings, with or without a casing.

1009362

Claims (1)

The invention aims to utilize rainwater from roofs to be used for non-drinkable applications such as toilet flushes, car washes, sprinkler systems, and general cleaning applications. With the installation of the system, a rainwater volume can be collected at an average terraced house (50 m2 roof surface) annually 0.8 m3 / m2, so that ± 40 m3 of water can be collected, enough for a 4-person household for flushing toilets on an annual basis. For larger houses, villas, bungalows, etc., this way ± 100-150 m3 of rainwater can be collected annually, enough for toilet flushing, garden irrigation, 10 car washes, etc. For event buildings, party centers, catering establishments, cinemas, (sports ) canteens, etc .; where 'peak use' for toilet flushes etc. occurs, large savings can be realized. Reservoirs as described can be connected so that a large amount of water can be stored. Invention in combination with other fittings, etc., concerns a first-class environmental saving. Less polluting with regard to surface water and in wet periods, if applied on a large scale, an accumulating effect with regard to better control of sewer systems and of water level in low-lying areas such as in polders, etc. Invention concerns a relatively cost-effective solution so that after installation in short time an economic advantage is achievable. 1 0 09 3 6 2