DE102019007859A1 - Drinking water separation station - Google Patents

Abstract

The present invention relates to a drinking water separation station (system separator with free outlet) which according to the applicable standards DIN EN 1717 and DIN 1988-100 for the protection of drinking water against contamination / contamination by backflow or suction of water from water-carrying systems (tapping points, apparatus), that is not assigned to liquid category 1, can be contaminated and requires a corresponding system separation. This drinking water separation station is used for underground irrigation / irrigation systems for green areas, such as rainwater harvesting systems with drinking water replenishment or for water supply in disaster protection or festivals and fairs where drinking water is used as process water, for example the user can connect the drinking water separation station to the drinking water installation via a garden hose coupling without any special knowledge. The connection is not necessarily fixed. This new type of drinking water separation station is intended to enable operators of water-carrying systems, which are regarded as tapping points or devices of liquid category 5, to have a system separator in the form of a mobile, easy-to-connect station in the form of a "plug." and Play “solution itself to the drinking water installation without having to intervene in the drinking water installation and without having to call in an installer. The housing above the storage container can have a receiving space for additional installations that can be covered and locked with a hood. The drinking water separation station can be used flexibly and used in a mobile manner if the housing is provided with at least two rollers on the underside. In addition, this separation station offers an integrated and possibly calibrated water meter, which allows the operator of a water-carrying system to comply with the technical regulations by registering the water meter In the case of municipalities or wastewater operations and sealing according to regulations, the wastewater fee can be saved if the intended use of the separation station can be assigned to an application that is not connected to the wastewater canal (irrigation, evaporation). This is the case with infiltration, evaporation or drinking water consumption in cattle troughs etc.

Description

Technical field

The present invention relates to a drinking water separation station with the features of the preamble of claim 1.

A physical separation of the drinking water network from downstream consumption points, which include line sections that have not been flowed through for a long period of time or which may have been contaminated, is required to prevent the drinking water network from becoming contaminated by backflow, suction or recontamination. The state of the art described in the standards DIN EN 1717 and DIN 1988-100 applicable at the time of registration writes to protect the drinking water from contamination of the drinking water installation by backflow from water-carrying systems (tapping points, apparatus) that are not of the liquid category 1 are assigned corresponding separation devices.

For example, in order to prevent or counteract germ contamination back into the drinking water installation for the operation of an underfloor system such as a sprinkler system for green areas to protect drinking water against backflow, suction and recontamination from an underground water installation, the operation of such a system may only be carried out using one separator suitable for this application. This applies because irrigation systems installed underground as well as various other water applications in the aforementioned standards of the liquid category 5 are assigned and accordingly must be secured and operated for operation with a safety device corresponding to this liquid category, a so-called system separator. For the liquid category 5 this means that a system separator with a free outlet must be provided between the drinking water network and the irrigation system.

Systems are known from the prior art, in particular for rainwater use for garden irrigation and for use in the home, which have a cistern for collecting rainwater and a pressure booster pump. In these systems, a drinking water refill with a free outlet can be provided, with which drinking water is fed into the cistern if the water supply drops too much. Such systems are permanently installed in basements, relatively large and correspondingly expensive. Extracting water for irrigation purposes outside the building also requires external taps, which should be permanently installed.

It is therefore an object of the present invention to provide a drinking water separation station which is more flexible in its installation and handling, which requires less installation effort and which is particularly suitable for irrigation purposes.

This object is achieved by a drinking water separation station with the features of claim 1.

• - einem Trinkwasseranschluss mit einem Nachspeiseventil,
• - einem Vorlagebehälter,
• - einer in einem Gehäuse angeordneten Druckerhöhungspumpe,
• - wenigstens einer von der Druckerhöhungspumpe gespeisten Zapfstelle, sowie mit
• - einem zwischen dem Trinkwasseranschluss und dem Nachspeiseventil angeordneten Wasserzähler versehen ist, außerdem das Gehäuse einen unteren Bereich hat, in welchem eine Gehäusewandung unmittelbar den Vorlagebehälter bildet, und das einen oberen Bereich hat, in dem der Wasserzähler und das Nachspeiseventil angeordnet sind, kann das Gehäuse unmittelbar als Vorlagebehälter ausgebildet sein. Dadurch erübrigt sich ein separater Tank, das Gehäusevolumen wird im Bereich des Vorlagebehälters optimal genutzt, und die Trennstation wird besonders kompakt. Dies gilt insbesondere, wenn das Gehäuse in dem unteren Bereich einwandig ausgebildet ist.

Because the drinking water separation station with

• - a drinking water connection with a make-up valve,
• - a storage container,
• a booster pump arranged in a housing,
• - At least one tap fed by the booster pump, and with
• - A water meter arranged between the drinking water connection and the make-up valve is provided, the housing also has a lower area in which a housing wall forms directly the storage container, and has an upper area in which the water meter and the make-up valve are arranged, the housing can be designed directly as a storage container. This eliminates the need for a separate tank, the housing volume in the area of the storage container is optimally used, and the separation station becomes particularly compact. This applies in particular if the housing is single-walled in the lower area.

The drinking water separation station can be connected to the drinking water installation by the user without any special expertise using a garden hose coupling.

In its upper area above the storage container, the housing can have a receiving space for additional installations, which can be covered by means of a hood that closes the housing. The hood is preferably lockable. Connections and devices that can be used together with the drinking water separation station can be arranged in this receiving space. It can be advantageous if the receiving space surrounds a hose holder or a hose drum.

It is further preferred if the receiving space contains a feed device for liquid additives, in particular a fertilizer feed. Such feeds work more reliably and precisely in operation than, for example, a swell by manual application of fertilizer.

At least two tapping points are preferably provided, one tapping point being arranged within the receiving space and at least one further tapping point on the outside of the housing. The tap inside the reception room can be used for the temporary connection of water consumers, while irrigation installed underground can be connected to the other tap.

A version in which the make-up valve is a mechanical float valve is particularly simple and reliable. It can also be provided that the make-up valve is a solenoid valve which is controlled by a control system as a function of the fill level.

The booster pump can be installed dry on a shelf so that it is easily accessible for maintenance purposes.

It is particularly preferred if the booster pump is a submersible pump. These pumps are particularly reliable and quiet.

It is particularly advantageous if the pressure booster pump is regulated as a function of the pressure at the tapping points.

The drinking water separation station can be used flexibly and used mobile if the housing is provided with at least two rollers on an underside. In particular, the housing can have at least one handle by means of which the drinking water separation station can be manually rolled or carried. The drinking water separation station can be rolled into a storage room in the event of frost or long periods of non-use. However, it can also be moved to another place of use without this requiring a greater amount of transport.

To connect, the drinking water separation station only has to be connected to a drinking water connection and connected to a power supply. The connection is not necessarily stationary.

This new type of drinking water separation station is intended for operators of water-carrying systems that act as tapping points or devices in the liquid category 5 be made possible to connect a system separator corresponding to the technical regulations in the form of a mobile, easy-to-connect station in the sense of a "plug and play" solution to the drinking water installation itself, without intervening in the drinking water installation and without having to call in an installer.

In addition, this separation station offers an integrated and possibly calibrated water meter, which enables the operator of a water-bearing system to save the wastewater fee in addition to compliance with the technical regulations by registering the water meter with the municipality or the wastewater operation and sealing according to regulations, if one of the purposes of the separation station is Assign application that is not connected to the sewer.

This is the case with infiltration, evaporation or drinking water consumption with cattle troughs etc.

Thanks to its integrated submersible pump, the drinking water separation station also works as a pressure booster and thus raises the water pressure, which is often insufficient at the external tap, to a pressure required for the irrigation system.

In addition to the conventional feeding of drinking water, rainwater can also be fed into the drinking water separation station in order to make the product more economical and to use the resources.

• • der Außenbereich, bei dem das über die Erfindung bereitgestellte Betriebswasser nicht dem Abwasserkanal zugeführt wird und kein abzurechnendes Abwasser anfällt.
• • dort wo eine flexible / mobile Trennstation gefordert sein kann (saisonbedingte Anwendung / Einsatz), ohne eine Trennstation durch eine dauerhafte feste Rohrverbindung in die Trinkwasserinstallation zu integrieren.
• • Beregnungsanlagen für Grünflächen, Unterfluranlagen
• • Regenwassernutzung
• • Chemikalienzumischvorrichtung z. B. Düngemittel
• • Hochdruckreiniger mit oder ohne Chemikalienzugabe
• • Beregnungsanlage mit Düngemitteleinsatz
• • Viehtränkebecken
• • Füllen von Teichen (Fischbecken)
• • Füllen und Nachfüllen von Schwimm- und Badebecken.

Intended areas of application of the invention are, for example:

• • the outside area, in which the process water provided by the invention is not fed to the sewer and no wastewater to be accounted for arises.
• • where a flexible / mobile separation station may be required (seasonal use) without integrating a separation station into the drinking water installation through a permanent, fixed pipe connection.
• • Irrigation systems for green areas, underfloor systems
• • Use of rainwater
• • Chemical admixing device e.g. B. Fertilizers
• • Pressure washer with or without the addition of chemicals
• • Irrigation system with use of fertilizer
• • Cattle trough
• • Filling ponds (fish tanks)
• • Filling and refilling swimming and bathing pools.

• 1: eine Basisversion der Trinkwassertrennstation mit verschiedenen Detaildarstellungen;
• 2: Darstellungen der Vorrichtung aus 1 ohne Gehäuse;
• 3: eine Darstellung einer Chemikalienzumischvorrichtung mit Dosierpumpe; sowie
• 4: eine Darstellung einer Einspeisevorrichtung mit Venturirohr und einer Schlauchtrommel zur Anordnung in dem Aufnahmeraum oberhalb des Vorlagebehälters.

Exemplary embodiments of the invention are described in more detail below with reference to the drawing. Show it:

• 1 : a basic version of the drinking water separation station with various detailed representations;
• 2nd : Representations of the device 1 without housing;
• 3rd : a representation of a chemical admixing device with a metering pump; such as
• 4th : A representation of an infeed device with a Venturi tube and a hose drum for arrangement in the receiving space above the storage container.

The following description is assigned to the 1 and 2nd .

The device for external tapping points comprises a housing with a storage container 1 and with a removable hood 2nd .

The removable hood 2nd forms a weatherproof protection against rain, dirt, etc.

A castle 3rd locks the hood 2nd on the housing with the storage container 1 , it protects against unauthorized handling and manipulation of the water meter.

A rectangular cut-out embedded in the storage container as an overflow 4th limits the water rise in the housing if the water supply control malfunctions.

Via an outside tap 5 with screwed garden hose connection in the form of a garden hose coupling 6 becomes drinking water from the house installation, via a garden hose 7 and a garden hose coupling 8th at the transfer point on the outer container wall and via a tank feed-through 9 in 2nd for feeding into the storage tank 1 provided.

On the inside of the storage tank, the water to be fed in is fed through a calibrated water meter at the transfer point 10th headed. In the flow direction before and after the water meter are two-part screw connections 11 screwed to the meter. These two-part screw connections are provided with holes which are used to seal the water meter with a sealing wire.

After the two-part screw connection in the flow direction, a T-piece is screwed on behind the meter. At this 90 ° to the main flow direction there is a proportionally controlled float valve 12 screwed on. Depending on the water level in the storage tank, this feeds drinking water via a free outlet in the storage tank. The float valve 12 is due to a buoyant float 13 controlled, which opens or closes the valve depending on the water level and thus ensures a proportional water supply.

A two-part screw connection is screwed on behind the T-piece in the main flow direction. This is on a tank feedthrough set into the right outer wall of the storage container 14 screwed on. The tank lead-through forms the water transfer point without a safety device against backflow / recontamination for a 2-way valve 15 .

The 2-way valve offers the possibility of connecting two garden hoses, which can be connected to the storage tank via garden hose couplings. The water flow can be shut off with ball valves.

That through the float valve 12 in the storage container 1 Water fed in (now to be regarded as process water and no longer as drinking water) is supplied by a submersible pump 16 sucked in and pressure side via a pressure hose connected to the pressure nozzle 17th through a tank duct 18th passed, which forms the transfer point for the removal of process water from the storage tank.

A garden hose coupling is screwed to the tank bushing from the outside, which provides the option of connecting an underfloor system or other water-using systems, that of the liquid category 5 are to be assigned and must be fed according to EN 1717 and DIN 1988-100 via a safety device with a free spout to protect the drinking water against possible recontamination or backflow by back pressure or suction.

Furthermore, the invention is designed as a rainwater storage tank. Via a hole and tank duct at the level of the overflow 4th can rainwater from a rainwater downpipe 19th of the roof drain and tapped through a hose through a tank duct into the storage tank.

An excess of discharged rainwater is caused by the overflow 4th out of the storage tank to avoid contamination of the fittings by rainwater, which is considered non-drinking water.

The rainwater introduced can be pumped out of the storage tank with the submersible pump. The rainwater can also be drawn through a tap on the tank 20th (please refer 1 ), for example to fill a watering can.

In the upper part of the storage container under the hood is a mounting plate 21st (please refer 2nd ), screwed on. A socket is screwed onto this 22 , to which the submersible pump is connected, and a garden hose holder with a wound hose 23 .

The invention is on wheels for convenient and flexible transportation 24th on the bottom of the housing, which enables pulling or pushing via a handle designed as a gripping opening in the upper part of the storage container.

In the 3rd is a version with chemical admixing devices such. B. fertilizer admixing devices for fertilization automation, based on the in the 1 and 2nd shown basic version, illustrated. Such an embodiment can also be used for metering in chlorinating agents when filling swimming pools or the like.

This version builds on the basic version, but is between the pressure hose 17th and the submersible pump 16 and the transfer point 18th a tee 25th installed, into which a feed valve or inoculation valve with non-return valve (not shown in the drawing) is screwed. This inoculation valve can be used to add fertilizer to the pressure line (process water for irrigation). The fertilizer is fed through a suction line 26 from an electric dosing pump 27th from one on a shelf 28 standing canister 29 sucked and proportioned under pressure in the pressure line mixed with the process water for irrigation. A programmable system control 30th controls the dosing pump 27th .

In the 4th Another version is shown in details. This version is also based on the structure of the 1 and 2nd , but here is also between the submersible pump 16 and the pressure hose 17th and the transfer point 18th a change in the pressure line system has been made.

At this point, a bypass is connected, which consists of two lockable T-pieces 31 with integrated ball valves in the pressure line system.

In the desired operating state "fertilizer admixture" both ball valves must be open. That from the submersible pump under pressure to the transfer point 18th Pumped process water creates a negative pressure in the bypass. In this is a venturi nozzle 32 installed, which creates a vacuum in the bypass by the Venturi principle and thus fertilizer from a on the shelf 28 standing canister 29 sucks and feeds it to the pressure line. Above the suction hose 33 Intermediate flow controller (not shown), the fertilizer delivery can be adjusted in doses.

The ball valves are closed to use the drinking water separation station without fertilizer. The process water therefore flows in a direct way as in the in 1 and 2nd shown basic version of the submersible pump 16 , over the pressure hose 17th to the transfer point without bypass 18th .

Reference symbol list

1

Storage container

2nd

Hood storage container

3rd

lock

4th

rectangular cutout (overflow)

5

External tap (tap)

6

Garden hose connection (garden hose coupling)

7

Garden hose

8th

Garden hose coupling

9

Tank passage (transfer point)

10th

water meter

11

2-part screw connections with hole for lead wire ( 2nd Piece)

12

Make-up valve, float valve

13

Float body

14

Tank duct

15

2-way valve with garden hose coupling

16

Submersible pump

17th

pressure hose

18th

Tank duct

19th

Rainwater downpipe

20th

Tap supply container

21st

Mounting plate

22

230 V socket

23

Garden hose holder with coiled hose

24th

roll

25th

T-piece pressure line inoculation valve with non-return valve

26

Suction line

26.1

Pressure line dispenser

27th

electric dosing pump

28

Shelf

29

canister

30th

programmable system control

31

Lockable ball valve T-piece

32

Venturi nozzle

33

Suction hose with flow regulator venturi nozzle

Claims (14)

Drinking water separation station with - a drinking water connection with a make-up valve (12), - a reservoir (1), - a booster pump (16), - at least one tap (15) fed by the booster pump (16), and with - one between the drinking water connection and the Make-up valve (12) arranged water meter (10), characterized in that - a housing is provided which has a lower area in which a housing wall directly forms the storage container (1) and which has an upper area in which the water meter ( 10) and the make-up valve (12) are arranged. Drinking water separation station according to one of the preceding claims, characterized in that the housing is single-walled in the lower region. Drinking water separation station according to one of the preceding claims, characterized in that the housing has in its upper region a receiving space for additional installations, which can be covered by means of a hood (2) which closes the housing. Drinking water separation station according to one of the preceding claims, characterized in that the hood (2) can be locked. Drinking water separation station according to one of the preceding claims, characterized in that the receiving space surrounds a hose drum (7). Drinking water separation station according to one of the preceding claims, characterized in that the receiving space contains a feed device (27, 18) 32) for liquid additives, in particular a fertilizer feed or a chemical admixing device. Drinking water separation station according to one of the preceding claims, characterized in that at least two tapping points are provided, one tapping point being arranged within the receiving space and at least one further tapping point (15) on the outside of the housing. Drinking water separation station according to one of the preceding claims, characterized in that the make-up valve (12) is a mechanical float valve. Drinking water separation station according to one of the preceding Claims 1 to 7 , characterized in that the make-up valve (12) is a solenoid valve which is controlled by a control system as a function of the fill level. Drinking water separation station according to one of the preceding claims, characterized in that the pressure booster pump is a submersible pump (16) arranged in the storage container (1). Drinking water separation station according to one of the preceding Claims 1 to 9 , characterized in that the booster pump is a motor pump arranged on a shelf (28). Drinking water separation station according to one of the preceding claims, characterized in that the pressure booster pump is regulated as a function of the pressure at the tapping points (15). Drinking water separation station according to one of the preceding claims, characterized in that the housing is provided with at least two rollers (24) on an underside. Drinking water separation station according to one of the preceding claims, characterized in that the housing has at least one handle by means of which the drinking water separation station can be manually rolled.

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