DE102019103272A1 - Water fitting for carrying out a hygiene flushing - Google Patents

Abstract

A faucet (10; 110) for carrying out a sanitary lavage in a water installation having a water supply, comprising a faucet housing (18; 118) having an inlet port (20; 120,135) for connecting the faucet (10; 110) to the water installation; a barrier (48); and a shut-off valve (48) (24; 124) through which water from the water installation can be discharged; characterized in that an outlet port (22; 122) is provided for connection to a water consumer, a tap or other water installation on the fitting housing (18; 118); and the shut-off (48) is arranged outside the flow path between inlet port (20; 120,135) and outlet port (22; 122) in front of the drain (24; 124), so that water can flow from the inlet port (48) irrespective of the state of the barrier (48). 20, 120, 135) to the outlet port (22; 122).

Description

Technical area

1. (a) ein Armaturengehäuse mit einem Einlassanschluss zum Anschließen der Wasserarmatur an die Wasserinstallation;
2. (b) eine Absperrung; und
3. (c) einen mit der Absperrung absperrbaren Ablauf, über den Wasser aus der Wasserinstallation abführbar ist.

The invention relates to a water fitting for carrying out a hygiene flush in a water installation with a water supply containing

1. (A) a valve body with an inlet port for connecting the water fitting to the water installation;
2. (b) a barrier; and
3. (c) a shut-off with the barrier drain over the water from the water installation is dischargeable.

A water installation is, for example, a drinking water supply in a building. If no water is tapped for a long time, the water stagnates. At these conditions, germs can form. This is an undesirable flow state. It is therefore known to provide a provided with a barrier connection to a drain in the water installation. Within a predetermined period of time, about a week, this barrier is opened regularly. Then, an amount of water is passed into the drain, which is sufficient to flush the water installation completely.

Hygienic flushing is in any case carried out in known arrangements, irrespective of whether or not water has been tapped. So water is consumed even if there is no stagnation at all.

State of the art

WO 2014 / 040823A1 discloses a water faucet for performing a sanitary lavage in a water installation. Water from the water installation can be discharged via a drainage arrangement so that stagnation in the water installation is avoided. The water fitting has a connection for connecting the water fitting to a fresh water supply and a shut-off for interrupting the fresh water supply from the fresh water supply. One of the arrangements is installed behind the last tapping point of a strand in front of a waste water connection to the waste water line. This arrangement has no own turbine and needs another fitting with a turbine and a complex control unit. Other arrangements have an integrated turbine. These are located in front of the last tapping point so that the turbine can detect the flow. The last tapping point is then no longer rinsed. The disclosed in the publication embodiments are bulky, have a high flow resistance and are expensive.

Disclosure of the invention

• (d) ein Auslassanschluss zum Anschließen an einen Wasserverbraucher, eine Zapfstelle oder eine weitere Wasserinstallation an dem Armaturengehäuse vorgesehen ist; und
• (e) die Absperrung außerhalb des Strömungsweges zwischen Einlassanschluss und Auslassanschluss vor dem Ablauf angeordnet ist, so dass Wasser unabhängig vom Zustand der Absperrung vom Einlassanschluss zum Auslassanschluss fließen kann.

It is an object of the invention to provide an improved water fitting for performing a hygiene flush. According to the invention the problem is solved in a water fitting of the type mentioned in that

• (D) an outlet port for connection to a water consumer, a tap or another water installation is provided on the fitting housing; and
• (E) the shut-off is arranged outside the flow path between the inlet port and the outlet port before the drain so that water can flow from the inlet port to the outlet port regardless of the state of the barrier.

The present invention provides a fitting housing having an inlet port for connecting the water fitting to a water supply. The inlet connection is connected to the rest of the water installation. Faucets and piping between the water supply of the water installation and the presently claimed water fitting can then be flushed with the water fitting with water from the water supply. It is therefore preferably provided that the water fitting is installed before the last tapping point or before the last water consumer of a strand.

The invention further provides a barrier. With the shut-off a drain can be shut off, via the water from the water installation can be discharged. The barrier can be different in nature. It can also be actuated in different ways - manually or automatically. When the barrier is opened, water flows from the water supply through the upstream part of the water installation at the inlet connection into the water fitting and from there through the water fitting to the drain. The drain can have its own drainage funnel and its own odor trap. This makes the arrangement voluminous and expensive.

It is therefore preferably provided that the fitting does not have its own discharge funnel and odor trap. The drain can be connected, for example, directly to the angle valve under a sink or to a toilet flush. Then the trap or siphon of the sink or toilet flush is included. It is understood that the drain can also be connected to other taps or water consumers with odor trap, such as the Sewer pipes of machines, shower, bath, bidet and the like.

The arrangement according to the invention provides, in addition to the drain, an outlet connection to the fitting housing. The outlet port is used to connect to a water consumer, a tap or another water installation. In other words, all water of the water consumer or tap flows from the inlet port through the water fitting to the outlet port. Thus, the water fitting can be installed in particular in the supply line to a tap. A particularly preferred variant provides that the water fitting is installed below a sink in the fresh water line. There is usually also the sewer line of the sink or the other tapping point or the water consumer easily accessible. But it is also possible to install the water fitting according to the invention at a different location in a water pipe and connect the drain via funnels, hoses, pipes or the like to the wastewater.

The invention further provides that the shut-off is arranged outside the flow path between the inlet port and the outlet port before the drain, so that water can flow from the inlet port to the outlet port regardless of the state of the barrier. This, in combination with the outlet port, allows installation in a fresh water supply line. The water fitting according to the invention has a very low flow resistance, can be made with small dimensions and requires little material. Unlike the known arrangements, for example WO 2014 / 040823A1 , only the rinse water flows through the barrier, but not water, which is tapped or otherwise consumed. Water provided at the downstream tapping point or at the downstream water consumer does not have to flow through the barrier. As a result, the barrier can be made smaller.

It is preferably provided that at least one sensor is arranged in the flow path between inlet port and outlet port, which detects the water pressure, the water temperature, the volume flow or another property of the water.

Such a sensor is in particular a turbine, an impeller or other flow-measuring means. Such a flow-measuring means detects the flow through the water fitting. If no flow is detected over a longer period, this can be displayed and / or a signal can be generated. Then the barrier is opened and flushed the water installation. The danger of stagnant water with nucleation is avoided.

A particularly preferred embodiment of the invention provides that a turbine is provided with a magnet and a reed contact detects the rotation of the turbine with the magnet. But it is also possible to use other flow-measuring means.

A pressure sensor detects the pressure at the end of the water installation in front of the tapping point or the water consumer. The pressure sensor is not absolutely necessary for carrying out the hygiene flushing or the detection of untypical and / or undesired flow states. The detection of the pressure in the arrangement according to the invention before the last tapping point but allows the control of the set pressure at a pressure reducer in the house entrance area before the water supply. The additional installation of a separate pressure reducer and the associated effort are then not required.

A temperature sensor allows the monitoring of a temperature limit. For example, a lower temperature limit of, for example, 50 degrees Celsius for hot water and an upper temperature limit of, for example, 25 degrees Celsius with cold water to prevent the formation of Legionella or similar germs and microorganisms. However, there may also be other reasons for the temperature measurement, for example for checking heat losses or the like.

In a particularly preferred embodiment of the invention, a signal processing device acted upon by signals of the at least one sensor is provided for determining the conditions in the water installation. The relationships may be the flow conditions, the pressure conditions, the temperature conditions or other conditions detectable by a sensor, which reflect the properties and history of the water at the location of the sensor. In the signal processing device, the signals of the sensors can be evaluated, stored and forwarded. In particular, the signals can be used to control the barrier.

In particular, a sensor can be formed by a turbine or another flow-measuring means, and a control device for controlling the shut-off in accordance with the flow conditions detected in the water installation with the flow-measuring means can be provided. If the turbine detects no flow for a long period of time and does not turn or only slightly turns, a control command is generated with which the barrier is opened for a limited period of time. Then the hygiene rinse is completely automatic. During the hygiene flushing, water is still available at the outlet connection. It can still be tapped water.

In a further embodiment of the invention, a sensor is formed by a pressure sensor, and a control device is provided for controlling a pressure regulator in the water installation regulating pressure reducer in accordance with the pressure detected in the water installation with the pressure sensor. The water fitting is placed in a downstream area of the water installation. For example, this can be very high in a multi-storey building. There the water pressure drops. With the pressure sensor can be checked whether there is sufficient pressure at the measuring point in the water installation. The regulation of the pressure can be very fast. Thus, for example, a pressure drop, if a lot of water is removed at a tapping point, be compensated by further opening the pressure reducer for a limited period of water withdrawal. Further consumers then continue to have the usual pressure available. When the removal is complete and the pressure rises again, the reducer can be set to its original setting.

The signal processing device preferably has a communication device for communication with further signal processing devices in the water installation or a server. The communication device can cooperate with a communication system for leakage protection, which, for example, in the WO 2014/029699 A1 described in detail, is sold by the applicant under the trade name "SYR Connect" and therefore need not be described again here.

In a further embodiment of the invention, the barrier is formed by a controllable solenoid valve. Of course, the invention may be practiced with other types of valves, such as a ball valve or the like. However, a solenoid valve is particularly suitable for the present invention, because it allows small dimensions and is well controlled electrically.

In a particularly advantageous manner, the invention is realized if an elongate housing bore with a flow-measuring means is provided in the valve body between the coaxial inlet port and the outlet port. Although a low flow resistance can be achieved even with a curved housing bore. However, the arrangement is particularly compact if the inlet connection and the outlet connection are arranged coaxially and the elongate housing bore extends substantially straight. In the housing bore, a turbine or other flow-measuring means may be provided.

The arrangement is particularly compact if lateral accesses for one or more further sensors are provided in the axial direction along the housing bore. The sensors can be arranged to save space above or next to each other along the housing bore. The associated accesses may be formed as radial bores in the fitting housing. Depending on the application, one or more sensors can be used.

A particularly easy to install arrangement results from an outer housing, in which the valve body of the water fitting, the signal processing device and a control unit for controlling the barrier are integrated on a circuit board, so that a jointly installable module is formed. The housing can be made very small, for example, a cube with 6 to 8 cm edge length or other shapes of comparable volume. This improves the possibilities of use.

It can be provided a power supply for energy consumers in the water fitting in the form of batteries or accumulators and the barrier can be electrically actuated and de-energized closed. For example, a solenoid valve can serve as a barrier that is closed when no current flows. The controller and the signal processing device can also be configured in such a way that no or only very little electrical energy is required if it is not measured, stored, evaluated or controlled. This keeps the power consumption of the device at a very low level. There is no additional power supply required except batteries or rechargeable batteries. This simplifies the installation and allows installation even in places where there is no power outlet or other electrical power supply.

The manufacturing and material costs, as well as the weight of the water fitting are advantageously low when the fitting housing is at least partially made of plastic. It is understood, however, that any other material, in particular cast iron or brass, may also be suitable for a water fitting according to the invention.

In a preferred embodiment of the invention, a connection adapter can be provided which can be connected rotatably to the inlet connection integrated in the fitting housing. During installation, at first only the connection adapter is screwed into an existing thread of the water connection. Subsequently, the valve body is inserted with the inlet port. The fitting housing can be fixed with a clamp on the connection adapter in the axial direction. The valve must not be rotated in this embodiment in the manufacture of the screw.

A particularly advantageous embodiment of the invention is achieved when a ball valve or other auxiliary shut-off is provided downstream of the inlet port. Then you can do without the angle valve or another auxiliary shut-off at the installation site. The installation is made easier and the fitting requires less installation space.

A particularly flexible water fitting is created if, in addition to the first inlet connection, a second inlet connection is provided on the fitting housing, the orientation of which deviates from the orientation of the first inlet connection and one of the two inlet connections is releasably closed with a stopper. The equipment of the water fitting with two inlet ports of different orientation allows different installation orientations and use with different uses, such as cisterns, sinks etc. Preferably, it is provided that an inlet port is arranged coaxially to the valve body and the other inlet port, for example, perpendicular thereto. It is also possible to provide further inlet connections.

In a particularly advantageous embodiment of the invention it is provided that the auxiliary shut-off has a first switching state in which both inlet ports are shut off, has a second switching state, in which the first inlet port is opened and the second inlet port is shut off and a third switching state, wherein the closed first inlet port and the second inlet port is open. This can be achieved for example with a ball valve having a through hole and a lateral bore extending to the through hole. When the ball is rotated about an axis perpendicular to the through hole, all three states can be realized.

Embodiments of the invention are the subject of the dependent claims. An embodiment is explained below with reference to the accompanying drawings.

definitions

In this specification and in the appended claims, all terms have a meaning to those skilled in the art, which of the technical literature, standards in particular DIN EN 806-1 and DIN EN 1717 and the relevant websites and publications, in particular lexical nature, for example www.Wikipedia.de, www.wissen.de or www.techniklexikon.net, the competitors, research institutes, universities and associations, such as German Association of Gas and Water Fach eV or Association of German Engineers. In particular, the terms used do not have the opposite meaning to what the skilled artisan takes from the above publications.

Absperrung:

ist jede Art von Einrichtung, welche einen Fluidstrom ganz oder teilweise blockiert. Typische Absperrungen sind Magnetventile, Kugelhähne oder Ventile.

Armatur:

ist ein Bauteil zur Installation in oder an einer Rohrleitung oder anderen Fluidinstallation zum Absperren, Regeln oder Beeinflussen von Stoffströmen. Eine Armatur kann einteilig oder mehrteilig ausgebildet sein und wird an einer Stelle in oder an der

Auslass

Rohrleitung installiert. Armaturen sind beispielsweise und nicht abschließend: Anschlussvorrichtungen, Anschlussarmaturen, Hauptabsperrarmaturen, Wartungsarmaturen, Drosselarmaturen, Entnahmestellen, Entnahmearmaturen, Entleerungsarmaturen, Sicherungsarmaturen, Sicherheitsarmaturen und Stellarmaturen. ist eine ablaufseitige Öffnung in einem Gehäuse, aus welcher ein Stoffstrom herausfließen kann. Die Öffnung kann insbesondere an eine Rohrleitung oder eine weitere Armatur angeschlossen sein oder frei zur Atmosphäre hin öffnen.

Auslassanschluss

Auslass, der den Anschluss von Leitungen, Schläuchen, Rohren oder weiteren Armaturen erlaubt.

axial

ist die Richtung der Rotationsachse von ganz oder teilweise rotationssymmetrischen Bauteilen, wie etwas Rohren oder langgestreckten Gehäusen. Bei Bauteilen ohne Rotationssymmetrie ist es die Hauptströmungsrichtung in einem Bauteilabschnitt.

Bohrung

ist jede Art von Verbindung zweier Hohlräume, sowie Sacklöcher.

Druck

Kraft pro Flächeneinheit

Druckminderer

ist eine Armatur zur Einstellung eines ausgewählten Drucks an dahinterliegenden Bauteilen.

Einlass

ist eine zulaufseitige Öffnung in einem Gehäuse, in welchen ein Stoffstrom hineinfließen kann. Die Öffnung kann insbesondere an eine Rohrleitung oder eine weitere Armatur angeschlossen sein oder frei zur Atmosphäre hin öffnen.

Einlassanschluss

Einlass, der den Anschluss von Leitungen, Schläuchen, Rohren oder weiteren Armaturen erlaubt.

Gehäuse

Begrenzung für Stoffe, Bauteile, Instrumente und Messgeräte nach außen. Ein Gehäuse kann einteilig oder aus mehreren verbundenen Gehäuseteilen mehrteilig ausgebildet sein und aus einem oder mehreren Materialien bestehen.

Mutter

Maschinenelement zur Herstellung lösbarer Verbindungen. Die Mutter ist ein Hohlkörper mit Innengewinde.

radial

senkrecht zu einer axialen Richtung.

Rohr

Hohlkörper aus zylindrischen Abschnitten. Dient üblicherweise als Rohrleitung.

Schulter

Übergang von Abschnitten unterschiedlicher Durchmesser oder Dicken.

Sensor

technisches Bauteil, das physikalische oder chemische Eigenschaften und/oder die stoffliche Beschaffenheit seiner Umgebung qualitativ und/oder quantitativ erfassen kann. Beispiele sind Strömungsmesser, Temperatursensoren und Drucksensoren, aber auch Leitfähigkeitssensoren und pH-Messer.

Stutzen

Rand oder Übergangsstück an einer Öffnung.

Turbine

rotierende Strömungsmaschine, beispielsweise ein Flügelrad, welche das Abfallen der inneren Energie eines strömenden Fluides in mechanische Leistung umwandelt, die sie über ihre Welle abgibt.

Ventil

Bauteil zur Absperrung oder Regelung des Durchflusses von Fluiden.

zapfen

entnehmen von Wasser aus einer Installation, beispielsweise an einem Wasserhahn oder mittels eines Apparates.

Zapfstelle

Anordnung zum Zapfen. Beispiele sind Waschbecken, Spülbecken, Duschen, Badewannen, Bidets, Toiletten mit den zugehörigen Hähnen bzw. Zapfarmaturen.

Wasserinstallation

wasserführende oder Wasser enthaltende Installationen. Sie können Rohre, Schläuche, Container, Armaturen, Maschinen und dergleichen enthalten. Beispiele sind die Wasserversorgung in Gebäuden, Schwimmbäder, Saunen, Aquarien, künstliche Teiche, Bewässerungsanlagen und Brunnen oder industrielle Anwendungen. Die Wasserinstallation kann in mehrere Stränge aufgeteilt sein.

Wasserverbraucher

Zapfstelle, an welcher ein Apparat oder eine Maschine angeschlossen ist. Beispiele sind Waschmaschinen oder Spülmaschinen.

Furthermore, the following meanings are used here for the terms used:

barrier:

is any type of device that completely or partially blocks fluid flow. Typical barriers are solenoid valves, ball valves or valves.

fitting:

is a component for installation in or on a pipeline or other fluid installation for shutting off, regulating or influencing material flows. An armature may be formed in one or more parts and is at a position in or on the

outlet

Piping installed. Fittings are, for example and not limited to: connection devices, connection fittings, main shut-off valves, maintenance fittings, throttle valves, tapping points, bleeder valves, drain valves, safety valves, safety valves and control valves. is an outlet-side opening in a housing, from which a stream can flow out. The opening can in particular be connected to a pipeline or another fitting or open freely to the atmosphere.

outlet

Outlet that allows the connection of pipes, hoses, pipes or other fittings.

axial

is the direction of the axis of rotation of wholly or partially rotationally symmetric components, such as some tubes or elongated housings. For components without rotational symmetry, it is the main flow direction in a component section.

drilling

is any kind of connection of two cavities, as well as blind holes.

print

Force per unit area

pressure reducer

is a fitting for setting a selected pressure on components behind it.

inlet

is an inlet-side opening in a housing, in which a stream can flow into it. The opening may in particular be connected to a pipeline or another fitting or open freely to the atmosphere.

inlet port

Inlet that allows the connection of pipes, hoses, pipes or other fittings.

casing

Limitation of substances, components, instruments and measuring instruments to the outside. A housing may be formed in one piece or from several connected housing parts in several parts and consist of one or more materials.

mother

Machine element for the production of detachable connections. The nut is a hollow body with internal thread.

radial

perpendicular to an axial direction.

pipe

Hollow body of cylindrical sections. Usually used as a pipeline.

shoulder

Transition of sections of different diameters or thicknesses.

sensor

technical component that can qualitatively and / or quantitatively record the physical or chemical properties and / or the material nature of its environment. Examples are flow meters, temperature sensors and pressure sensors, but also conductivity sensors and pH meters.

Support

Edge or transition piece at an opening.

turbine

rotating turbomachine, such as an impeller, which converts the falling of the internal energy of a flowing fluid into mechanical power, which it delivers via its shaft.

Valve

Component for shutting off or regulating the flow of fluids.

tap

remove from water from an installation, for example on a faucet or by means of an apparatus.

tap

Arrangement for journaling. Examples are sinks, sinks, showers, bathtubs, bidets, toilets with the associated taps or tap fittings.

water installation

water-bearing or water-containing installations. They may contain pipes, hoses, containers, fittings, machinery and the like. Examples include water supply in buildings, swimming pools, saunas, aquariums, artificial ponds, irrigation systems and wells or industrial applications. The water installation can be divided into several strands.

water consumers

Tap to which an apparatus or a machine is connected. Examples are washing machines or dishwashers.

list of figures

• 1 is a perspective view of a water fitting with a housing for performing a hygiene flush in a water installation.
• 2 shows the water tap 1 without housing.
• 3 Illustrated as the water faucet off 1 is installed on the sewer pipe of a washbasin.
• 4 is an exploded view of the water fitting off 1 ,
• 5 is a vertical section through the water faucet 1 in a plane through the connections.
• 6 is a vertical section through the water faucet 1 in a plane perpendicular to the plane in 5 ,
• 7 is a perspective view of a water fitting with a housing for carrying out a hygiene flush in a water installation with integrated angle valve according to a second embodiment.
• 8th is an exploded view of the fitting 7 ,
• 9 is a vertical section of the fitting 7 ,
• 10 illustrates a typical installation situation of the fitting 7 ,

Description of the embodiment

embodiment

1 shows a generally designated 10 water fitting for performing a hygiene flush in a water installation. The water installation in the present embodiment is a building with piping, various fittings, and several taps and water consumers, such as sinks, toilets, showers, bathtubs, bidets, washing and / or washing machines. But there are also other water installations conceivable, such as swimming pools, saunas, aquariums, artificial ponds, irrigation systems and wells or industrial applications with stagnation and a need for their prevention. The water installation can be divided into several strands.

Preferably, the water fitting 10 installed at the last downstream point of the water installation or a string of the water installation. It is also possible, only one or more water fittings 10 to install in one strand.

The water faucet 10 has a housing of three housing parts 12 . 14 and 16 , The housing parts 12 and 14 form a first chamber. This is in the exploded view in 4 seen. The first chamber encloses a valve body made of plastic, with 18 is designated. It is understood that instead of plastic, any other suitable material, such as cast or brass or other alloy may be used. To distinguish is a valve body 18 , which is usually a housing for a flow of water in a fitting, of a housing which the housing of the parts 12 . 14 and 16 corresponds, which is arranged around a valve around. The housing from the parts 12 . 14 and 16 it does not have to be watertight, nor does it have to withstand greater pressures. In addition to aesthetic aspects, it serves, in particular, to protect other components outside the fitting housing from dust, undesired manipulation and environmental influences. It is not absolutely necessary for the actual function of the water fitting.

The housing parts 14 and 16 form a second, separate from the first chamber chamber. In this chamber, a board is housed. On the board, a signal processing device, a controller and optionally a communication device are provided. The communication device establishes a wireless or wired connection to a network over which other devices can be controlled. Such a network may connect leakage protection devices, pressure reducers, water treatment devices and other fittings to communication and control devices and / or a server.

In an alternative embodiment, no communication device is provided. This self-sufficient solution is provided in particular for smaller water installations in which no other facilities are provided.

On the valve body 18 the water fitting 10 There are three connections. An inlet connection 20 Used to connect to a fresh water pipe of the water installation. The water installation is usually connected to a water supply, such as the building entrance to a waterworks. At an outlet port 22 a downstream tapping point or a water consumer can be connected. A drain connection 24 leads to a sewage pipe.

3 Illustrated as the water faucet 10 For example, in a fresh water line 26 respectively. 28 can be installed. Water flows through the water pipe 26 at the inlet connection 20 in the valve body 18 , At the outlet connection 22 the water flows out of the valve body 18 back out into the water pipe 28 , The water pipe 28 can lead to a sink, for example, as a hot or cold water pipe. Then the water tap 10 installed below the sink (not shown). This is easily possible because the case 12 . 14 . 16 forms a cube with an edge length of only about 7 cm.

The drain connection 24 flows in a hose or in a pipe 30 , This is in 3 clearly visible. The line goes through a funnel 32 and a branch 34 into the sewage pipe 36 the wash basin, which is typically provided with a siphon (not shown) as an odor trap. For the water faucet 10 Therefore, no additional odor trap is required in this embodiment.

In the present embodiment, the connection of the water fitting takes place 10 on lines 26 . 28 and 30 by means of threaded nuts 38 and sealing rings 40 , It is understood that other types of connections, screw, clamp or connectors, with or without nozzles, are suitable, which are commonly used in the installation of water-bearing components.

The valve body 18 includes, as in 5 and 6 good to recognize, an elongated, tubular housing part 44 with a through hole 42 , In the illustrations, the through hole runs 42 linear and vertical. It is understood that a different orientation is possible. The linear course has the advantage of low flow resistance. From the through hole 42 is a channel 46 diverted. The channel 46 is via a solenoid valve 48 with a side channel 50 connected in the drain connection 24 empties. The side channel 50 runs in the radial direction in a to the tubular housing part 44 molded neck 52 , It is understood that the neck 52 and the side channel 50 can also assume a different geometry.

The solenoid valve 48 is a commercially available solenoid valve and therefore need not be explained in detail. With the solenoid valve 48 can the flow from the canal 46 to the side channel 50 let through or be interrupted. The solenoid valve 48 is electrically controlled. When no current flows, the solenoid valve is on 48 closed. This is the operating position. When current through the solenoid valve 48 is directed, is the solenoid valve 48 open. That's the flushing position. Instead of a solenoid valve, any other type of barrier can be used. A solenoid valve has the advantage that it can be made small and is electrically controllable.

In the flushing water flows from the through hole 42 through the channel 46 and the side channel 50 to the drain connection 24 , This will be the upstream water installation with water flowed through and rinsed. Stagnation is avoided or reversed.

The solenoid valve 48 can be opened after a certain period of time, for example 24, 48 or 72 hours. Then the valve opens, even if water has flowed through the water installation and actually no flushing is required. It is therefore provided in the present embodiment that a turbine 54 in the through hole 42 is arranged. With the turbine 54 can be detected, whether and which water flow through the through hole 42 flows. For this purpose, in the present embodiment, a reed contact 56 provided, which detects the rotation of the turbine. Turbine and reed contact flowmeters are well known and therefore need not be further described here. It is understood that other flow-measuring means can be used.

The signals of the reed contact are transmitted to the signal evaluation unit. There it is determined when and how much water through the through hole 42 flowed. If no or only too low a flow has flowed in a selected period of time, a control signal is generated by means of a likewise provided control, which the solenoid valve 48 opens. Then, water flows through the entire upstream part of the water installation into the through-hole 42 and from there across the canal 46 and the side channel 50 to the drain connection 24 , In this way it is automatically ensured that only rinsing is done if there is actually a risk of stagnation.

The flow measuring means in connection with the signal evaluation can also be used for other purposes. Thus, in particular, the water consumption at the tapping point can be determined or leakage detected. In this case, further displays and / or communication means, such as a transmitter or an internet connection can be provided on the board.

In addition to the flow sensor in the form of a turbine with reed contact in the present embodiment, a temperature sensor 58 and a pressure sensor 60 intended. With the temperature sensor 58 the water temperature can be determined. The signal is transmitted to the signal evaluation unit. There it is determined whether the temperature corresponds to a setpoint. In particular, it is determined whether the temperature is within a range at which there is a risk of Legionella formation or similar germs. The signal evaluation unit with the control can then trigger appropriate measures, for example, more rinses or a change in temperature in the water by heating / cooling.

The pressure sensor 60 determines the water pressure downstream of the turbine. With the pressure sensor can be detected whether a desired pressure is present. If, for example, a lot of water is removed, as is the case when filling a bathtub, the water pressure also drops elsewhere. Conversely, higher pressure may be desired for this short period of time. With the help of the pressure sensor, a control signal can then be generated via the controller, which is transmitted to a house-side pressure reducer. The valve used in the pressure reducer can then be opened further, so that for the limited period of time the water pressure in the water installation is increased. If the pressure rises again after the water is removed from the pressure sensor, the valve in the pressure reducer is regulated back.

Due to the linear course of the through-channel 42 a low flow resistance is achieved. All water flows through the turbine and through-channel 42 , However, the water does not pass the shut-off during operation. The shut-off is only passed during the flushing process. The arrangement uses existing structures, in particular the supply line to a tapping point or a water consumer and the associated sewer line. As a result, the arrangement can be made compact, is inexpensive to produce and easy to install. As the water faucet 10 allows particularly small dimensions, it can be used without effort in places that are not accessible with known arrangements, such as below a washbasin. In particular, the water fitting is suitable both for use under plaster, as well as for use on plaster.

embodiment

7 to 9 show a general with 110 designated water fitting for performing a hygiene flush in a water installation according to a second embodiment. For the sake of clarity, no housing has been shown. The use and place of installation of the water faucet 110 is the same as the use of the water faucet 10 of the first embodiment.

The water faucet 110 has a substantially elongated fitting housing 118 as a housing for a water flow. On the valve body 118 the water fitting 110 There are three connections. An inlet connection 120 Used to connect to a fresh water pipe of the water installation. Unlike the first embodiment, the inlet port forms 120 an angle with the remaining part of the elongated fitting housing 118 , The inlet connection 120 is from a neck 121 , the side of the tubular fitting housing 118 is formed. Downstream of the inlet port 120 is a barrier 123 arranged in the flow path. In the present embodiment, the barrier 123 formed by a ball valve. The ball 125 of the ball valve 123 is rotatable about a horizontal axis. This is in 9 recognizable.

The inlet connection 120 forms together with the barrier 123 an integrated angle valve. Accordingly, no additional angle valve is required, for example below a wash basin to shut off the water supply. To facilitate the installation is a connection adapter 127 with seals 129 in the inlet connection 120 forming neck 121 plugged in. The connection adapter 127 is with a bracket 131 secured. The connection adapter 127 is thus rotatably mounted, but immovable in the axial direction.

For installation, the connection adapter 127 with a thread 133 screwed into the water connection of the water installation. The water faucet 110 is then plugged in and with the clip 133 secured. In this way, the water faucet needs 110 do not turn to screw in. The connection adapter 127 enables position-independent installation of the valve 110 , The water installation is usually connected to a water supply, such as the building entrance to a waterworks.

There are uses of the water fitting, in which no kinked flow with angled connections, but a linear flow with coaxial connections is required. Such a use is, for example, the use of a flushing cistern of a toilet flush. In this case, another inlet port is provided, which in the 7 to 9 denoted by 135.

The further inlet connection 135 is from a piece of pipe 141 formed and is coaxial with the tubular housing 118 screwed. The further inlet connection 135 is in the representations where the angled flow is required with a plug 137 locked. For use with coaxial connectors, the plug becomes 133 removed and the connection adapter 127 in the further inlet connection 135 plugged in and fixed. The stopper 133 then serves to close the lateral connection 120 , It is understood that the dimensions of the pipe section 141 , the plug 137 , the connection adapter 127 and the neck 121 are chosen such that the plug 137 and the connection adapter 127 can be exchanged.

At an outlet port 122 can be connected as in the first embodiment, a downstream tapping point or a water consumer. A drain connection 124 leads to a sewage pipe.

10 Illustrated as the water faucet 110 directly and without angle valve in a fresh water line 126 respectively. 128 can be installed. Water flows through the water pipe 126 at the inlet connection 120 in the valve body 118 , At the outlet connection 122 the water flows out of the valve body 18 back out into the water pipe 128 , The water pipe 128 can lead to a sink, for example, as a hot or cold water pipe. Then the water tap 110 installed below the sink (not shown).

The drain connection 124 is like the drain connection 24 connected to the first embodiment. Also construction and function of the water fitting 110 is otherwise unchanged from the first embodiment.

It is understood that for all connections, other types of connections, screw, clamp or plug connections, with or without nozzles, are suitable, which are usually used in the installation of water-bearing components.

The embodiments explained above serve to illustrate the invention claimed in the claims. Features that are disclosed in common with other features may also be typically used alone or in combination with other features that are explicitly or implicitly disclosed in the text or drawings in the embodiments. Dimensions and sizes are given by way of example only. The skilled person will find suitable areas of his expertise and therefore need not be explained in detail here. The disclosure of a specific embodiment of a feature does not mean that the invention should be limited to this specific embodiment. Rather, such a feature can be realized by a variety of other, known in the art embodiments. The invention can therefore be realized not only in the form of the explained embodiments, but by all embodiments, which are covered by the scope of the appended claims. In particular, more or less sensors may be provided. Nozzles, pipes, pipes and hoses can be formed in one piece or in several parts and have approximately stub extensions. Instead of coaxial arrangements for nozzles, other arrangements can be realized.

The terms "top", "bottom", "right" and "left" refer to the attached drawings only. It is understood that claimed devices may also take a different orientation. The term "containing" and the term "comprising" mean that other, non-named components can be provided. The term "essentially", "predominantly" and "predominantly" includes all features which have a property or a majority in the majority, ie more than all the other components or properties of the feature mentioned, ie for two components, for example, more than 50%.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2014/040823 A1 [0004, 0010]
• WO 2014/029699 A1 [0019]

Cited non-patent literature

• DIN EN 806-1 [0031]
• DIN EN 1717 [0031]

Claims (15)

A water fitting (10; 110) for performing a sanitary irrigation in a water installation having a water supply comprising (a) a fitting housing (18; 118) having an inlet port (20; 120,135) for connecting the water fitting (10; 110) to the water installation ; (b) a barrier (48); and (c) a drain (24; 124) shutting off the barrier (48) through which water from the water installation is dischargeable, characterized in that (d) an outlet port (22; 122) for connection to a water consumer, a tap or another water installation is provided on the fitting housing (18; 118); and (e) the barrier (48) is located outside the flow path between the inlet port (20; 120,135) and outlet port (22; 122) prior to the drain (24; 124) so that water is independent of the state of the barrier (48). from the inlet port (20; 120,135) to the outlet port (22; 122). Water fitting (10; 110) according to one of the preceding claims, characterized in that at least one sensor (54, 56, 58, 60) is arranged in the flow path between inlet port (20; 120, 135) and outlet port (22; 122) detects the water pressure, the water temperature, the volume flow and / or another property of the water. Water fitting (10; 110) after Claim 2 , characterized in that provided with signals of the at least one sensor (54, 56, 58, 60) signal processing means for determining the conditions in the water installation is provided. Water fitting (10; 110) after Claim 3 characterized in that a sensor (54, 56) is formed by a turbine (54) or other flow metering means, and a controller for controlling the gate (48) in accordance with the flow conditions detected in the flow metering means (54) Water installation is provided. Water fitting (10; 110) after Claim 3 or 4 , characterized in that a sensor is formed by a pressure sensor (60), and a control device for controlling a pressure regulator in the water installation is provided in accordance with the pressure detected in the pressure sensor (60) pressure in the water installation. Water fitting (10; 110) after one of Claims 3 to 5 , characterized in that the signal processing device has a communication device for communication with further signal processing devices in the water installation or a server. Water fitting (10; 110) according to one of the preceding claims, characterized in that the barrier (48) is formed by a controllable solenoid valve. Water fitting (10; 110) according to one of the preceding Claims 2 to 7 , characterized in that in the fitting housing (18; 118) between the coaxial inlet port (20; 120,135) and outlet port (22; 122) an elongated housing bore with a flow-measuring means (54, 56) is provided. Water fitting (10; 110) after Claim 8 , characterized in that in the axial direction along the housing bore lateral accesses for one or more further sensors (54, 56, 58, 60) are provided. Water fitting (10; 110) according to one of the preceding Claims 3 to 9 characterized by an outer housing (16), in which the fitting housing (18; 118) of the water fitting (10; 110), the signal processing device and a control unit for controlling the barrier (48) are integrated on a circuit board, so that a jointly installable Assembly is formed. Water fitting (10; 110) according to one of the preceding claims, characterized in that a power supply for energy consumers in the water fitting (10; 110) in the form of batteries or accumulators is provided and the barrier (48) is electrically actuated and de-energized closed. Water fitting (10; 110) according to one of the preceding claims, characterized in that a connection adapter (127) is provided, which is rotatably connectable to the inlet connection (120, 135) integral with the fitting housing (118, 121). Water fitting (110) according to one of the preceding claims, characterized in that a ball valve (123) or another auxiliary shut-off downstream of the inlet port (120, 135) is provided. Water fitting (110) according to one of the preceding claims, characterized in that in addition to the first inlet port (120), a second inlet port (135) is provided on the fitting housing (118), the orientation of which is oriented from the orientation of the first inlet port (120) and in each case one of the two inlet connections (120, 135) is detachably closed by a plug (137). Water fitting (110) after Claim 13 and 14 , characterized in that the auxiliary shut-off (123) has a first switching state in which both inlet connections are shut off, has a second switching state in which the first inlet connection (120) is opened and the second inlet connection (135) is shut off and a third switching state, wherein the first inlet port (120) is shut off and the second inlet port (135) is opened.

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