EP3315673A2 - Device for flushing of lines in a water building installation - Google Patents

Abstract

The invention relates to a device for carrying out the flushing of lines of a water-building installation, comprising a float control (9) which actuates a filling valve (2) in the inlet, which by means of a connecting line (44, 144) and an angle valve (4, 104, 204) is connected to the water-building installation, and which is provided with a drain valve (3) which can be actuated by a mechanical or electronic trip unit, wherein the drain valve (3) has an overflow hole (31) in an outflow channel (11 ) opens. In the inlet at least one branch (42, 142, 242, 147) is provided, which connects a valve (5, 105, 205) and / or a sensor (107, 207) with the water-building installation. The filling valve (2) may be a solenoid valve (205) and the float control (9) may be implemented as a sensor for detecting the level.

Description

The invention relates to a device for performing the flushing of lines of a water-building installation, comprising a float control, which actuates a filling valve in the inlet, which controls a filling valve in the inlet, which is connected by means of a connecting line and an angle valve to the water-building installation, and which is provided with a drain valve, which is actuated via a mechanical or electronic trip unit, wherein the drain valve has an overflow bore, which opens into a drain channel.

Devices for carrying out the flushing of pipes of a water-building installation are used to prevent contamination of standing in the pipes water. In addition to rinsing the lines, it is also known to prevent the contamination by means of chemical or thermal processes. The present invention is concerned only with the flushing of the pipes. The nucleation occurs due to prolonged standstill of the water in the line due to prolonged disuse.

Means for flushing the lines in water-building installations are widely known. For example, from the DE 10 2006 017 807 A1 a method is known in which a drinking water installation with different sampling points provides an additional tap having a valve which communicates with a controller. By opening the valve, a cleaning rinse is triggered, if within a given time interval by a sensor no water removal was detected at the sampling points. The water taken out by the valve for triggering a cleaning rinse is discharged into the channel system directly from a drain directly assigned to the valve so that germs possibly present in the water can not be put into drinking water use. Although the known method meets the requirements; However, it is very complex, since already in the planning and construction of the water-building installation an additional Tapping point and a separate drain must be provided. Subsequent installation requires a considerable effort because of the additional removal point and the connection to the drain lines.

In addition, from the DE 10 2008 047 938 A1 a drinking water supply system known in which a cleaning rinse without providing an additional sampling point is possible. The flushing is rather triggered by triggering a toilet or urinal flush. However, it is necessary to provide the toilet or urinal fitting with an electronic flush valve or an electronic cistern with magnetic or motor-driven drain valve. The control for determining a regular water extraction takes place with a sensor arranged in the installation. The water removed in the case of a cleaning rinse is discharged via the toilet or urinal basin into the canal system, so that it is ensured that the possibly contaminated with germs water does not reach the drinking water use. Basically, the well-known drinking water pipeline system meets the requirements. However, it presupposes that the toilet or urinal valve is already designed as an electronic valve during pipeline planning. The retrofitting of a non-electronic flush valve or cistern with electronic Spülerkomponenten is very complex and, in particular for flush-mounted cisterns as good as not possible.

With the known systems, the flushing of the pipes of the water-building installation, which connects the individual consumers, so-called baseline. For flushing the pipes leading from the basic pipe to the respective fittings, modern fittings usually have a so-called "hygiene or 24-hour flushing". In this case, a short-term water withdrawal is automatically triggered after a preset time without use of faucets, which corresponds at least to the volume of the pending water between the base line and fitting.

From the DE 20 2011 105 696 U1 Furthermore, a hygiene flushing device is known, which is arranged in a cistern. In the known device is provided as a sensor, a flow sensor which is disposed immediately in front of the filling valve. This type of interval flushing alone takes into account the flushing of the cistern in which the sensor is installed. The removal of water from other consumers arranged in the respective wiring harness can thus not be monitored. Consequently, a sensor is required at each consumer to monitor the entire wiring harness.

Against the background of the above, it is an object of the present invention to provide a device for performing the flushing of pipes of a water-building installation, which is suitable both for the use of manually and electronically operated water taps on the one hand, and on the other hand, a retrofit into one already existing water-building installation allows. According to the invention, this object is achieved in that in-feed at least one branch is provided, which connects a valve and / or a sensor with the water-building installation and that the sensor is able to a water extraction from the water-building installation detect.

With the invention, a device for performing the flushing of lines of a water-building installation is created, which allows retrofitting at existing water supply points. At the same time, the device is suitable for use both with existing manually operable valves and with electronically actuated valves. The sensor is able to determine a common use of the respective valve and forward this information to the controller. He is also able to detect rinses of other consumers in the same wiring harness of the water-building installation. Consequently, with the present invention, it is possible by retrofitting only one sensor to monitor the entire wiring harness with all consumers seconded therein.

In a further development of the invention, the valve is an electrically operated valve. The use of an electrically operated valve has the advantage that a faster control is possible.

Preferably, the valve has an outlet nozzle, which is positioned at a minimum distance from the overflow hole. The minimum distance according to DIN EN 1717 corresponds to the minimum distance between the valve outlet and the highest possible water level. The minimum distance prevents the sucking back of water.

The sensor is preferably a pressure sensor. Such sensors are able to very sensitively detect pressure fluctuations in the line system and send out corresponding signals in order to be able to initiate suitable measures, in the present case, for example, triggering of water or the like.

In one embodiment of the invention, the filling valve, the drain valve, the angle valve and the valve are mounted in a cistern. The device according to the invention is suitable in this case for a toilet flushing, even for a flush mounting.

In another embodiment of the invention, the control device is formed by a float. This embodiment is selected in the case of a conventional cistern. Consequently, the combination with the device according to the invention for retrofitting in existing cisterns is possible.

In an additional embodiment of the invention, at least one further inlet is provided. As a result, the device according to the invention can be installed without changing the originally provided inlet.

The object is also achieved according to the invention by a device for performing the flushing of pipes of a water-building installation, wherein the filling valve is a solenoid valve and the float control is designed as a sensor for detecting the level. As a result, a completely electronic operation of the monitoring and flushing is possible. It has no mechanical, moving parts and is particularly suitable for retrofitting.

Preferably, the filling valve is a solenoid valve. The use of a solenoid valve offers the possibility of a much faster filling of the cistern than is the case with the use of the commonly provided float control. This is particularly desirable under conditions of use in which the respective toilet flush is frequently frequented, for example in stadiums or event halls.

Figur 1

die prinzipielle Darstellung einer in einem Spülkasten montierten Vorrichtung mit mechanischer Betätigung;

Figur 2

die prinzipielle Darstellung einer in einem Spülkasten montierten Vorrichtung mit mechanischer Betätigung in anderer Ausgestaltung und

Figur 3

die prinzipielle Darstellung einer in einem Spülkasten montierten Vorrichtung mit elektronischer Betätigung.

Other developments and refinements of the invention are specified in the remaining subclaims. Embodiments of the invention are illustrated in the drawings and will be described in detail below. Show it:

FIG. 1

the basic representation of a mounted in a cistern device with mechanical actuation;

FIG. 2

the basic representation of a mounted in a cistern device with mechanical actuation in another embodiment and

FIG. 3

the basic representation of a mounted in a cistern device with electronic actuation.

The chosen as embodiment of devices for performing the flushing of pipes of a water-building installation are all mounted in a cistern 1. However, the invention is not limited to installation within flush toilets of toilet facilities. Rather, the use of other water collection points of the building installation, for example, urinals, washbasins, bidets or sinks is possible.

The device according to the invention comprises a float control 9, which actuates a filling valve 2 in the inlet of the removal point. The extracted water is discharged via the toilet bowl into the canal system. The device has an angle valve 4, 104, 204, via which the inlet of the water in the cistern 1 can be turned off. A magnetically controlled valve 5, 105, 205 is provided, which is connected to a controller 6, 106, 206. In the embodiments of the Figures 2 and 3 is in the device a sensor 107, 207 arranged, which may be, for example, a pressure sensor.

The cistern 1 has a drain pipe 10 which is connectable to a not shown flushing pipe, which establishes the connection with the toilet bowl. In the discharge nozzle 10, a drain channel 11 is formed. The drain pipe 10 is provided at its free end with a seal 12 outside. At the bottom of the cistern 1 guide ribs 13 are distributed around the drain channel 11 around which serve to receive the drain valve 3. In the cistern 1, a mounting opening 14 is formed, which only schematically by the dotted line in the FIGS. 1 to 3 is indicated.

The drain valve 3 has a lifting sleeve 30. An overflow bore 31 is provided, which extends to the bottom of the cistern 1 and is continued there by the discharge channel 11. The overflow hole 31 allows the drainage of water from the cistern even when the drain valve is closed 3. In addition, the drain valve 3, a bracket 32 to which the linkage of a manually actuable release device is arranged. In the region of the bottom of the cistern 1, the drain valve 3, a seal 33.

The angle valve 1 forms the transition of the inlet of water from the building side arranged line in the cistern 1. The angle valve 4, 104, 204 is provided with a handle 40, 140, 240. It has a connection fitting 41, 141, 241, to which a connecting line 48, 148, 248 is screwed. In the course of the connecting line 48, 148, 248, a branch 42, 142, 242 is provided. The branch 42, 142, 242 is on the one hand connected to a connecting line 43, 143, 243, on the other hand in the embodiment of the FIGS. 1 and 2 via a connection fitting 45, 145 to a connecting line 44, 144 for connection to the connecting piece 23 of the filling valve 2. In the embodiment according to FIG. 3 the branch 242 is connected to the sensor 207. The connection line 43, 143, 243 is bolted to the valve 5, 105, 205 by means of a connection fitting 46, 146, 246.

The valve 5, 105, 205 has an outlet nozzle 50, 150, 250. It is connected via a connecting line 60, 160, 260 to the controller 6, 106, 206. The controller 106, 206 is in the embodiments according to FIG. 2 and 3 connected via a connecting line 161, 261 to the sensor 107, 207. In the embodiment according to FIG. 3 In addition, the controller 206 is connected via a connecting line 262 to the control device 8 designed in the manner of a sensor for determining the filling level.

The float control 9 in the embodiments of the FIGS. 1 and 2 It operates in the manner of a float on which a guide tube 80 is arranged. Adjacent to the guide tube 80, a valve rod 81 is provided for the actuation of the filling valve 2. In the embodiment according to FIG. 3 the sensor is provided to detect the level. At this a dip tube 81 is connected, which determines the level in the cistern 1. The level height is monitored by the level sensor 8. During the measurement, the level is continuously detected and converted into an electrical signal. The level sensor 8 may capacitively, using microwaves o. The like. Work.

The embodiment according to FIG. 1 represents the least constructive device for performing the flushing of lines of a water-building installation. The only difference to the usually mechanically operated cisterns for toilet flushing is that the magnetically controlled valve 5 and the controller 6 are retrofitted. In addition, it is only necessary to interrupt the connecting line 44, which connects the angle valve 4 directly to the filling valve 2 in conventional cisterns, to provide the branch 42, and thus to provide the opportunity to dissipate the water from the water-building installation outside the cistern , This takes place after the expiration of a time interval defined in the control 6. Once this time interval has expired, the controller 6 triggers a signal which opens the solenoid-controlled valve 5. As a result, water can enter via the angle valve 4 in the cistern 1 and enter through the lines 48 and 43 through the valve 5 and the outlet nozzle 50 into the cistern. As a result, the level in the cistern 1 increases. By However, provided in the drain valve 3 overflow hole 31 is no danger that it comes to a damage to the toilet flush. Rather, the water entering the cistern passes through the overflow hole 31 from the cistern 1 and pours through the drain channel 11 in the direction of the toilet bowl.

Comparable with respect to the operation of the valve 105, 205 in the embodiments according to the Figures 2 and 3 , In the embodiment according to FIG. 2 , in which also a mechanically operated toilet device is shown, it is an advanced solution in which in addition to the retrofittable valve 105 and the retrofittable sensor 106, a retrofittable sensor 107 is provided which is connected to the controller 106 and via the branch 147 is connected to the connecting line 148. The sensor 107 determines a water extraction when the toilet flushing. He notifies such a removal of water to the controller 106. By such a message to the controller 106, the time interval set in the controller 106 is restarted. If the sensor 107 has not detected water removal within the specified time interval and thus has not sent a message to the controller 106, the controller 106 will trigger a signal that will open the solenoid valve 105. As a result, water can enter via the angle valve 104 in the cistern 1 and enter through the lines 148 and 143 through the valve 105 and its outlet nozzle 150 in the cistern. The spout from the cistern 1 takes place in the reference to the embodiment according to FIG. 1 described way.

In the embodiment according to FIG. 3 the device for carrying out the flushing of lines of a water-building installation is arranged in an electronically actuated toilet flush. In this embodiment, the sensor 207 detects comparable to the embodiment according to FIG. 2 a removal of water and passes the detected water removal to the controller 206 on. After exceeding a preset time interval, the controller 206 triggers a signal which opens the solenoid-controlled valve 205, so that a line purging can take place.

With the invention, a device for performing the flushing of lines of a water-building installation is created, which can be retrofitted. As the embodiments can be removed, the required components, if they are not already available, easily mount in the cistern. Especially in the embodiment according to FIG. 1 , in which only the controller 6 and the valve 5 are retrofitted with its connection to the piping system, represents a very simple and reliable avoidance of germs in stagnant water. Visible, the components can also be installed through the mounting hole 14 in the concealed cistern. Similarly, this also applies to the embodiments of the Figures 2 and 3 , whereby here by the additional use of the sensor 107, 207 a somewhat increased installation effort is to be operated.

The sensor 107, 207 is preferably a pressure sensor. With this type of sensor, it is possible to detect water withdrawals not only at the respective sampling point where the sensor is installed, but also from the water building installation or the respective wiring harness. This is possible because each withdrawal of water causes a characteristic pressure drop. Thus, with a water removal by flushing on the cistern in which the sensor 107, 207 is installed, with respect to the speed and the height of the pressure drop other values than when a water withdrawal to another consumer in the same wiring harness. There are differences in terms of increase and decrease in water pressure. The pressure sensor is suitable for detecting the (different) pressure drops and forwarding them to the controllers 106, 206. This is programmed in such a way that it can recognize the differences and thus initiate the measures preset for the particular sampling case.

Thus, with only one, installed in a cistern in the form described sensor, taking into account the use of all installed in a strand sampling points a regular and time-critical for a bacterial purging line can be performed. The resulting advantage over the solutions known from the prior art is in Significantly lower water consumption and lower costs, since a sensor is not required at each sampling point.

The assembly itself is ensured by the mounting hole 14 in the concealed cistern, so that a retrofit problem is also possible here. In a modification of the embodiments shown in the figures, it is also possible to provide at least one additional inlet. There is then the possibility, for example, to dispense with the branch 42, 142.

Claims (13)

Device for conducting the flushing of pipes of a water-building installation, comprising a float control (9) which actuates a filling valve (2) in the inlet, by means of a connecting line (44, 144) and an angle valve (4, 104, 204) to the Water-building installation is connected, and which is provided with a drain valve (3) which is actuated by a mechanical or electronic trip unit, wherein the drain valve (3) has an overflow bore (31) which opens into a flow channel (11), characterized characterized in that in the inlet at least one branch (42, 142, 242, 147) is provided, which connects a valve (5, 105, 205) and / or a sensor (107, 207) to the water-building installation, and that the Sensor (107, 207) is able to detect a water extraction from the water-building installation. Apparatus according to claim 1, characterized in that the branch (42, 142, 242, 147) between the filling valve (2) and angle valve (4, 104, 204) is arranged. Apparatus according to claim 1 or 2, characterized in that the valve (5, 105, 205) is an electrically operated valve. Device according to one of the preceding claims, characterized in that the valve (5, 105, 205) has an outlet nozzle (50, 150, 250) which is positioned at a minimum distance (x) to the overflow bore (31). Device according to one of the preceding claims, characterized in that a control (6, 106, 206) is provided which controls the valve (5, 105, 205). Device according to one of the preceding claims, characterized in that it is the sensor (107, 207) is a pressure sensor. Device according to one of the preceding claims, characterized in that the filling valve (2), the drain valve (3), the angle valve (4, 104, 204) and the valve (5, 105, 205) are mounted in a cistern (1) , Device according to one of the preceding claims, characterized in that at least one further inlet is provided. Device for conducting the flushing of pipes of a water-building installation, comprising a float control (9) which actuates a filling valve (2) in the inlet, by means of a connecting line (44, 144) and an angle valve (4, 104, 204) to the Water-building installation is connected, and which is provided with a drain valve (3) which is actuated by a mechanical or electronic trip unit, wherein the drain valve (3) has an overflow bore (31) which opens into a flow channel (11), characterized characterized in that the filling valve (2) is a solenoid valve (205) and the float control (9) is designed as a sensor for determining the level. Apparatus according to claim 9, characterized in that the float control (9) by a level sensor (8) is formed. Apparatus according to claim 9 or 10, characterized in that the valve (205) has an outlet nozzle (250) which is positioned at a minimum distance (x) to the overflow bore (31). Device according to one of the preceding claims, characterized in that a controller (206) is provided which is in communication with the valve (205) and the level sensor (8). Device according to one of the preceding claims, characterized in that at least one further inlet is provided.

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