Device for operating a fluid line having at least one electrically actuatable shut-off element

Abstract

The invention relates to a device (1) for operating a fluid line (3) having at least one electrically actuatable shut-off element (2). In order to improve the safety of a fluid installation (4) against an uncontrolled escape of fluid from the fluid installation (4), the device (1) has at least one sensor device (5) in the form of a flow sensor, which can be mounted on the fluid line (3), and at least one electronic monitoring system (6), which is connected to the sensor device (5) and is designed to generate an electrical warning signal and / or switch off an electrical energy supply to the shut-off element (2) if measured values of the sensor device (5) meet a specified criterion without interruption over a time period which is longer than a specified maximum time period.

Description

[0001] Oßowski, Wilma OSS017PWO 1

[0002] Device for operating a fluid line having at least one electrically actuated shut-off device

[0003] Technical field

[0004] The invention relates to a device for operating a fluid line having at least one electrically actuated shut-off device. The device comprises at least one sensor device in the form of a flow sensor that can be arranged on the fluid line and at least one monitoring electronic unit connected to the sensor device, which is configured to generate an electrical warning signal and / or to switch off the electrical power supply to the shut-off device if measured values ​​of the sensor device continuously meet a predetermined criterion for a period of time that is longer than a predetermined maximum period.

[0005] State of the art

[0006] To supply a house with drinking water, the house is connected to a water utility's service connection. Drinking water can be fed into the house's drinking water installation via a fluid line designed as the drinking water supply line. A shut-off valve is usually installed on the fluid line to allow the drinking water supply to be temporarily stopped, for example, to carry out maintenance or repair work on the house's drinking water installation.

[0007] The drinking water system in a house operates at a pressure typically between 3 and 5 bar. If a leak occurs due to a fault or damage to the drinking water system, water can escape uncontrollably into the surrounding area. This can cause significant property damage to the house, especially if the leak goes unnoticed for a relatively long period.

[0008] Furthermore, a supply of water to extraction points via a well is known, whereby the water extraction points are connected to a pump via a water installation. The water installation has a [missing information - likely a reference to a specific type of water system or component] coming from the pump. (Oßowski, Wilma OSS017PWO 2)

[0009] The fluid line is in the form of a main water line, to which a dry-running protection unit may be attached. This dry-running protection is very prone to failure. If the dry-running protection fails to shut off the pump, and no water is being drawn from the water system, the pump will operate at full power against the closed water system. This will result in the pump no longer shutting off and the pump motor windings burning out. If a leak occurs in the water system due to a fault or damage, water can escape uncontrollably into the surrounding area. This can cause property damage, especially if the leak goes unnoticed for a relatively long period.

[0010] Disclosure of the invention

[0011] One object of the invention is to improve the safety of a fluid installation against uncontrolled leakage of fluid from the fluid installation.

[0012] This problem is solved by the independent patent claim. Advantageous embodiments are described in the dependent patent claims, the following description, and the figures, whereby these embodiments, either individually or in combination with at least two of them, can represent an advantageous and / or further developing aspect of the invention.

[0013] A device according to the invention for operating a fluid line having at least one electrically actuated shut-off device comprises at least one sensor device in the form of a flow sensor that can be arranged on the fluid line and at least one monitoring electronics unit connected to the sensor device. The monitoring electronics unit is configured to generate an electrical warning signal and / or to switch off the electrical power supply to the shut-off device if measured values ​​of the sensor device continuously meet a predetermined criterion for a period that is longer than a predetermined maximum period. The sensor device is designed such that it can be integrated into a fluid line such that a longitudinal center axis of the sensor device is vertically oriented. The sensor device comprises:

[0014] an inlet socket with a threaded fitting and an outlet socket with an Oßowski, Wilma OSS017PWO 3

[0015] Threaded fitting;

[0016] a connecting pipe that connects the inlet socket to the outlet socket in a communicating manner;

[0017] a magnetic switch attached to the outside of the connecting pipe, and a signal cable electrically connected to the magnetic switch;

[0018] a double socket which is axially connected to the inlet socket with respect to a flow direction and which is glued into the connecting pipe, wherein an end of the double socket facing the inlet socket is arranged flush with an end of the connecting pipe facing the inlet socket, the double socket has a circumferential separating web in the middle which divides the double socket axially into two socket sections, and the double socket is connected to the inlet socket in a communicating manner on the inlet side;

[0019] a pipe section that is inserted into the socket section and glued to the double socket and projects axially out of the double socket in the direction of the outlet socket; and a conduit pipe whose end section facing the inlet socket is flared so that an outer diameter of the end section is larger than an inner diameter of the separating web, wherein the conduit pipe is arranged to be axially movable on the double socket by a limited amount between an extended end position and a retracted end position; wherein

[0020] another end of the conduit is closed with a cap in which at least one permanent magnet is arranged; and

[0021] at least one opening is formed in a central area of ​​the conduit pipe, which is arranged on the conduit pipe in such a way that the opening is completely inside the pipe section when the conduit pipe is in its retracted end position, and that the opening is partially inside the pipe section and partially outside the pipe section when the conduit pipe is in its extended end position.

[0022] According to the invention, the monitoring electronics can determine whether a fluid is escaping uncontrollably from a fluid installation comprising the fluid line by being configured to check whether the measured values ​​of the sensor device meet the specified criterion, and furthermore to check whether the measured values ​​of the sensor device continuously meet the specified criterion for a period that is longer than the specified maximum period. If the measured values ​​of the Oßowski, Wilma OSS017PWO 4

[0023] If the sensor continuously detects the specified criterion for a period longer than the specified maximum period, this is a clear indication that fluid is leaking uncontrollably from the fluid installation. This is because the maximum period is defined in such a way that it is clearly longer than the period of normal, controlled, or active fluid withdrawal from the fluid installation.

[0024] If the fluid installation is, for example, a drinking water installation in a house, the maximum period can be specified as being significantly longer than, for example, a typical shower duration, a typical washing machine draws water from, or a typical bathtub fills with water. The maximum period should be clearly longer than the longest of these periods. Therefore, if water is supplied from the drinking water installation for longer than the maximum period, this is an unusually long water supply, which is highly likely due to a leak in the drinking water installation.The device according to the invention can reliably detect this and then output an electrical warning signal, which can be made perceptible to a user in any suitable way, so that the user can check and, if water is actually leaking uncontrollably from the drinking water installation, close the shut-off device arranged on the fluid line (designed in this example as a drinking water supply line), for example manually. Alternatively or additionally, the device itself can close the shut-off device automatically by switching off the electrical power supply to the shut-off device, so that the shut-off device automatically moves into its closed position. Such a shut-off device can, for example, be designed as a solenoid valve, a spring-loaded two-way zone valve, or an electrically operated ball valve.Such shut-off devices are in their closed positions when de-energized.

[0025] The device according to the invention can be designed such that the length of the maximum period can be adjusted on the device itself or via a communication device wirelessly connected to the device, for example a mobile communication device, and thus optimally adapted to the respective circumstances. This ensures, in particular, that during a typical fluid withdrawal at the Oßowski, Wilma OSS017PWO 5

[0026] Fluid installation does not lead to an unwanted shutdown of the water supply by the device according to the invention.

[0027] A sensor device in the form of a flow sensor can enable more precise evaluation using the fluid quantity measured by the flow sensor. The flow sensor must be partially or completely integrated into the fluid line.

[0028] The device according to the invention can additionally include at least one sensor device in the form of a temperature sensor. These sensor devices can then be used together to generate an electrical warning signal and / or to shut off the electrical power supply to the shut-off device. If one of the two sensor devices fails, the other can serve as a fallback sensor device or backup sensor device. A sensor device in the form of a temperature sensor can, for example, be arranged and attached to the outside of the fluid line. For example, the temperature sensor can be attached to the fluid line by means of at least one cable tie.

[0029] The device according to the invention, or its monitoring electronics, can also be configured to monitor the tightness of a fluid installation comprising the fluid line. For this purpose, the monitoring electronics can be configured to detect fluid flow through the fluid line outside of normal or usual periods when no fluid is typically drawn from the fluid installation, such as at night. Such fluid flow is then most likely caused by a leak in the fluid installation. Furthermore, the monitoring electronics can be configured to determine the amount of fluid that has flowed through the fluid line per unit of time, thereby enabling the monitoring electronics to also determine the extent of the leak in the fluid installation.The monitoring electronics can also be configured to generate and output an electrical warning signal or other electrical signal to alert a user to a leak in the fluid installation. The user can then, for example, check for moisture in the area of ​​the fluid installation at a very early stage and thus prevent impending damage caused by uncontrolled fluid leakage from the fluid installation. (Oßowski, Wilma OSS017PWO 6.)

[0030] to prevent this. The monitoring electronics can also be configured to immediately remonitor the fluid installation after each intentional water withdrawal, thus enabling continuous monitoring of the fluid installation.

[0031] The monitoring electronics can be connected to the sensor device via a cable or wirelessly. In the first case, the monitoring electronics and the sensor device can be arranged on a common circuit board and / or in a common housing.

[0032] If the monitoring electronics are configured to generate the electrical warning signal, this signal can, for example, be fed to a signaling device capable of producing a warning signal perceptible to a user. The signaling device can be a component of the device or a separate component configured to receive the electrical warning signal from the monitoring electronics via a cable or a wireless connection. The monitoring electronics can be configured to generate the electrical warning signal once, for example, over an extended period, or repeatedly.

[0033] The device can be designed to be connected to a low-voltage power supply of a house, building, or the like via its own or an external power supply. Furthermore, the device can be designed to supply electrical energy to the electrically operated shut-off valve located on the fluid line, thus enabling it to actively hold the valve in the open position.

[0034] The device according to the invention can be used to operate a fluid line in any form and application, the fluid line having at least one electrically actuated shut-off device. The fluid line can, for example, be a drinking water supply line to a drinking water installation in a house.

[0035] In an exemplary embodiment, where an additional sensor device designed as a temperature sensor is present, the monitoring electronics can be configured to check whether the measured values ​​of the sensor device designed as a temperature sensor continuously fall below a predetermined temperature limit for a period longer than the predetermined maximum period. In this case, the measured values ​​of the temperature sensor can thus fulfill a predetermined criterion. (Oßowski, Wilma OSS017PWO 7)

[0036] The requirements are met when the measured values ​​fall below the specified temperature limit. The temperature sensor is preferably not thermally insulated so that it can be warmed up again by the temperature of the surrounding room air (ambient temperature).

[0037] The temperature sensor can be installed, for example, on a fluid line in the form of a domestic water supply line from a drinking water supplier or on a connected drinking water supply line of a domestic drinking water installation. Each time water is drawn from the drinking water installation, fresh water flows through the fluid line, thus cooling it. After a certain point during prolonged water withdrawal, the fluid line, depending on the ambient temperature, will have reached approximately the same temperature as the water flowing through it, so that the temperature of the fluid line does not decrease further during water withdrawal. The water supplied by a drinking water supplier generally always has the same temperature, which means that, during a sufficiently long water withdrawal period and at the same ambient temperature, the fluid line will also always reach the same lower end temperature.

[0038] The specified temperature limit can be defined, for example, as the sum of the lower end temperature of the fluid line and a temperature increment, which could be in the range of 0.1 K to 0.5 K, particularly 0.3 K. If the lower end temperature of the fluid line is, for example, 11.8 °C, the specified temperature limit could be set at 12.1 °C. If the temperature sensor readings then fall below 12.1 °C, the specified criterion is met.

[0039] The monitoring electronics can be configured to start a timer as soon as the predefined criterion is met for the first time, or as soon as the first temperature sensor reading falls below the predefined temperature limit. For this purpose, the monitoring electronics can, for example, include a time-delay relay. Through this timer, the monitoring electronics can be configured to determine whether the predefined criterion is met continuously for a period longer than the predefined maximum period. Oßowski, Wilma OSS017PWO 8

[0040] The device or its monitoring electronics can, for example, be designed such that the preset temperature limit is adjustable. If, for instance, the ambient temperature changes, the preset temperature limit should also be readjusted or adjusted. This can be achieved, for example, by drawing water from a fluid installation containing the fluid line until the fluid line reaches its lower end temperature, which depends on the ambient temperature. The monitoring electronics can, for example, be configured to detect this lower end temperature of the fluid line and reset the preset temperature limit accordingly, as described above.Alternatively, the device can be designed, for example, to display the lower end temperature of the fluid line, allowing a user to set the predefined temperature limit via a possible human-machine interface. This setting process can, for example, be carried out via a mobile device that can be wirelessly connected to the device.

[0041] According to a further advantageous embodiment, the monitoring electronics are configured to check whether the measured values ​​of the sensor device, designed as a flow sensor, remain continuously above a predetermined minimum flow value for a period longer than the predetermined maximum period. In this case, the measured values ​​of the flow sensor thus meet the predetermined criterion if they remain continuously above the predetermined minimum flow value for the entire period. The minimum flow value can be either zero or a value greater than zero. The device or its monitoring electronics can be configured such that the predetermined maximum period is adjustable.

[0042] During normal fluid withdrawal from a fluid installation containing the fluid line, the flow sensor readings remain continuously above the specified minimum flow rate for a period shorter than the specified maximum period. Therefore, if fluid is withdrawn for a period longer than the specified maximum period, this constitutes an unusual fluid withdrawal, most likely caused by uncontrolled fluid leakage from the fluid installation. Oßowski, Wilma OSS017PWO 9

[0043] According to a further advantageous embodiment, the monitoring electronics are configured to generate an optical warning signal and / or an acoustic warning signal and / or a radio warning signal based on the electrical warning signal. For this purpose, the monitoring electronics can include at least one display, at least one optical signaling unit, at least one loudspeaker, at least one radio module, or at least one dialing module for dialing a mobile phone number. Alternatively, the device can include at least one display connected to the monitoring electronics, at least one optical signaling unit connected to the monitoring electronics, at least one loudspeaker connected to the monitoring electronics, at least one radio module connected to the monitoring electronics, or at least one dialing module for dialing a mobile phone number.Alternatively or additionally, the device may have at least one transmitting unit connected to the monitoring electronics, which can send a signal to a server unit which, upon receiving the signal, can send a push message to at least one mobile terminal device.

[0044] According to a further advantageous embodiment, the monitoring electronics include at least one self-holding relay with which the electrical power supply to the shut-off device can be switched off. Such a relay can only be reset to restore electrical power to the shut-off device by means of a reset operation. This can be achieved, for example, by briefly disconnecting the device's power plug from the mains supply. In this context, the self-holding function refers to a technical characteristic of the relay whereby, after activation by an electrical pulse, the relay remains switched on without the need for the electrical pulse to be continuously applied to the relay.This encourages the user to examine the circumstances of the device's activation more closely on site, without the fluid installation equipped with the device being easily reactivated from the outside.

[0045] According to a further advantageous embodiment, the length of the specified maximum period lies in the range of 10 to 20 minutes. The length of the maximum period should be calculated and set so that the shut-off valve of the water supply cannot close unintentionally. The device can be configured to close the shut-off valve, for example, for one second after 10 minutes. If, for example, 18 minutes are required, Oßowski, Wilma OSS017PWO 10

[0046] To fill a bathtub, a timer that tracks the water withdrawal time could be restarted after 10 minutes. This would reduce the maximum danger time from 18 minutes to just 10 minutes.

[0047] According to a further advantageous embodiment, the device comprises at least one water detection unit connected to the monitoring electronics, wherein the monitoring electronics are configured to generate the electrical warning signal and / or to shut off the electrical power supply to the shut-off device when the water detection unit generates a signal indicating contact between the water detection unit and water. The water detection unit can, for example, be placed on a floor, such as a basement floor, to enable rapid detection of fluid flowing onto the floor. The device can also have two or more such water detection units, which can be arranged in different areas.

[0048] With the device according to one of the above-mentioned embodiments or a combination of at least two of these embodiments, a method for operating a fluid line having at least one electrically actuated shut-off device can be carried out, according to which an electrical warning signal is generated and / or an electrical power supply to the shut-off device is switched off when measured values ​​of a sensor device designed as a flow sensor and arranged on the fluid line continuously meet a predetermined criterion for a period of time that is longer than a predetermined maximum period.

[0049] The advantages mentioned above with reference to the device are correspondingly associated with this method.

[0050] The invention is explained below by way of example with reference to the attached figures and preferred embodiments, whereby the features explained below can represent an advantageous and / or further developing aspect of the invention both individually and in different combinations with one another.

[0051] Brief description of the characters

[0052] It shows: Oßowski, Wilma OSS017PWO 11

[0053] Fig. 1 shows a schematic representation of an embodiment of a device according to the invention;

[0054] Fig. 2 shows a circuit diagram of a further embodiment of a device according to the invention;

[0055] Fig. 3 shows a schematic side view of a sensor device designed as a flow sensor in a further embodiment of a device according to the invention; and

[0056] Fig. 4 shows a circuit diagram of a further embodiment of a device according to the invention, divided into Figs. 4A and 4B.

[0057] Detailed description of the characters

[0058] In the figures, identical or functionally equivalent components are marked with the same reference symbols. Repeated descriptions of such components may be omitted to avoid unnecessary repetition.

[0059] Fig. 1 shows a schematic representation of an embodiment of a device 1 according to the invention for operating a fluid line 3, comprising at least one electrically actuated shut-off device 2, of a fluid installation 4 in the form of a drinking water installation, which is installed in a house (not shown). The direction of fluid flow through the fluid line 3 is indicated by arrows P.

[0060] The device 1 has a sensor device 5 arranged on the fluid line 3 in the form of a temperature sensor or a flow sensor. The device 1 also has monitoring electronics 6 connected to the sensor device 3 via a signal connection S.

[0061] The monitoring electronics 6 are configured to generate an electrical warning signal and / or to shut off the electrical power supply to the shut-off device 2 if measured values ​​from the sensor device 5 continuously meet a predefined criterion for a period exceeding a predefined maximum period. For this purpose, the monitoring electronics 6 are connected to the shut-off device 2 via a cable 18. The length of the predefined maximum period, which is preferably freely configurable or predefinable, can be in the range of 10 to 20 minutes. (Oßowski, Wilma OSS017PWO 12)

[0062] The monitoring electronics 6 itself can be supplied with electrical energy via a power cable 7 of the device 1.

[0063] The monitoring electronics 6 can be configured to check whether the measured values ​​of the sensor device 5, designed as a temperature sensor, remain continuously below a predetermined temperature limit for a period longer than the predetermined maximum period. Alternatively or additionally, the monitoring electronics 6 can be configured to check whether the measured values ​​of the sensor device 5, designed as a flow sensor, remain continuously above a predetermined minimum flow rate for a period longer than the predetermined maximum period.

[0064] The monitoring electronics 6 can be configured to generate an optical warning signal and / or an acoustic warning signal and / or a radio warning signal based on the electrical warning signal.

[0065] The monitoring electronics 6 has a relay 8 with a self-holding function, which can be used to shut off the electrical power supply of the shut-off device 2.

[0066] The device 1 further comprises at least one water detection unit 9 connected to the monitoring electronics 6 via a signal connection S. The monitoring electronics 6 is configured to generate the electrical warning signal and / or to switch off the electrical power supply to the shut-off device 2 when the water detection unit 9 generates a signal indicating contact between the water detection unit 9 and water.

[0067] The monitoring electronics can, for example, be designed according to the embodiment shown in Fig. 2.

[0068] Fig. 2 shows a circuit diagram of a further embodiment of a device 1 according to the invention for operating a fluid line, comprising at least one electrically actuated shut-off device (not shown in Fig. 2) and a fluid installation (not shown in Fig. 2) in the form of a drinking water installation, located in a house (not shown). The fluid line comprises at least one electrically actuated shut-off device (not shown in Fig. 2). Oßowski, Wilma OSS017PWO 13

[0069] The device 1 includes a transformer power supply 10, which is supplied with electrical energy by plugging a power cord 7 of the device 1 into a wall socket (not shown). The electrical energy can be supplied at a mains voltage of 230 V or 400 V. The output DC voltage of the transformer power supply 10 is 12 V.

[0070] On the output side, the transformer power supply 10 is connected to terminals E and F, which are arranged on a circuit board 11 of the device 1. Terminal E is connected to a positive output terminal (not shown) of the transformer power supply 10, and terminal F is connected to a negative output terminal (not shown) of the transformer power supply 10. The transformer power supply 10 is preferably also arranged on the circuit board 11.

[0071] On the input side, the transformer power supply 10 is connected to terminals A to C, which are also located on the circuit board 11. Terminals A and C are provided for connecting a live conductor with phase L1 to the transformer power supply 10, while terminals B and D are provided for connecting a neutral conductor N to the transformer power supply 10. Terminal A is electrically connected to terminal C. Terminal D is electrically connected to terminal B, with a neutral conductor (not shown) of an electrically controllable shut-off device (not shown) located on the fluid line being connected to terminal D.

[0072] Furthermore, the device 1 includes a temperature module 12, whose positive input terminal + is connected to terminal E and whose negative input terminal - is connected to terminal F, so that the temperature module 12 can be supplied with the output DC voltage of the power supply 10. The temperature module 12 has two relay terminals K0 and K1 and is configured as a normally open contact. The temperature module 12 includes a relay (not shown) that closes (switches on) as soon as a measured value supplied to the temperature module 12 by a sensor device (not shown) of the device 1, configured as a temperature sensor, falls below a temperature limit set and thus predetermined on the temperature module 12. The relay terminal K0 and the positive input terminal + of the temperature module 12 are bridged, i.e., electrically connected to each other. Oßowski, Wilma OSS017PWO 14

[0073] Furthermore, the device 1 has a relay board 13, also called a relay card, arranged on the circuit board 11, with a self-holding function. Its positive input terminal + is connected to terminal E and its negative input terminal - is connected to terminal F, so that the relay board 13 can be supplied with the output DC voltage of the power supply 10. On the output side, the relay board 13 has the terminals NO (normally open), NC (normally closed), and CO (common). The relay board 13 also has a control terminal +IN.

[0074] The CO terminal of relay board 13 is electrically connected to terminal E. The NC terminal of relay board 13 is electrically connected to terminal Q located on circuit board 11. The NO terminal of relay board 13 is electrically connected to the +IN control terminal of relay board 13.

[0075] Furthermore, the device 1 includes a relay board 14, also called a relay card, whose positive input terminal + is connected to terminal E and whose negative input terminal - is connected to terminal F, so that the relay board 14 can be supplied with the output DC voltage of the power supply 10. On the output side, the relay board 14 has the terminals NO (normally open), NC (normally closed), and CO (common). The relay board 14 also has a control terminal +IN. The CO terminal of the relay board 14 is electrically connected to terminal C. The shut-off device is connected to the phase terminal of the relay board 14.

[0076] Furthermore, the device 1 includes a timer module 15, whose positive input terminal + is connected to terminal E and whose negative input terminal - is connected to terminal F, so that the timer module 15 can be supplied with the output DC voltage of the power supply 10. The timer module 15 has an input terminal IN with a positive terminal + and a negative terminal - and an output terminal OUT with a positive terminal + and a negative terminal -. The timer module also has a signal input SIGN and a ground terminal GND. Oßowski, Wilma OSS017PWO 15

[0077] The relay terminal K1 of the temperature module 12 is electrically connected to the positive terminal + of the input terminal IN of the time module 15. The negative terminal - of the input terminal IN of the time module 15 is electrically connected to terminal F. The signal input SIGN of the time module 15 is electrically connected to the positive terminal + of the input terminal IN of the time module 15. The ground terminal GND of the time module 15 is electrically connected to the negative terminal - of the input terminal IN of the time module 15.

[0078] The device 1 also includes a relay 16, which is arranged on the circuit board 11. A positive control terminal of the relay 16 (not shown) is connected to a terminal G on the circuit board 11, while a negative control terminal of the relay 16 (not shown) is connected to a terminal H on the circuit board 11. The positive terminal + of the output OUT of the timer module 15 is electrically connected to terminal G, while the negative terminal - of the output OUT of the timer module 15 is electrically connected to terminal G. A CO-NO contact of the relay 16 (not shown) is electrically connected to terminals I and J on the circuit board 11. Another CO-NO contact of the relay 16 (not shown) is electrically connected to terminals K and L on the circuit board 11.Terminal I is electrically connected to the positive input terminal + of relay board 13. Terminal J is electrically connected to the positive terminal +IN of relay board 13. At least one water detection unit (not shown) of device 1 can also be connected to terminals I and J.

[0079] Furthermore, the device 1 has another relay 17 arranged on the circuit board 11, with two relay contacts (not shown). A CO-NO contact (not shown) of the relay 17 is electrically connected to terminals O and P on the circuit board 11. Terminal P is electrically connected to the positive terminal +IN of the relay board 14. A CO-NC contact (not shown) of the relay 17 is electrically connected to terminals M and N on the circuit board 11. A positive input terminal + of the relay board 13 is electrically connected to a positive control terminal of the relay 17 (not shown). A negative control terminal of the relay 17 (not shown) is electrically

[0080] Terminal R is electrically connected to terminal R located on circuit board 11. Terminal Q is electrically connected to terminal F. Terminal Q is electrically connected to the positive control terminal of relay 17. Terminal R is electrically connected to a negative output terminal (not shown) of the transformer power supply 10.

[0081] When the output terminal OUT of the timer module 15 is activated after the specified maximum period has elapsed, the electrical voltage applied to a coil of relay 17 (not shown) drops, causing relay 17 to switch from the normally open (NO) contact to the normally closed (NC) contact. This activates relay board 14 via the control terminal +IN. As a result, the relay of relay board 14 (not shown) energizes, switching the relay from normally closed (NC) to normally open (NO). This disconnects the phase (if the shut-off device is a 230V shut-off device) or the positive terminal of a low-voltage supply (if the shut-off device is a low-voltage shut-off device), thus closing the shut-off device.

[0082] The electrical components of device 1 shown in Fig. 2 can form a monitoring electronics system according to the embodiment shown in Fig. 1.

[0083] Fig. 3 shows a schematic side view of a sensor device 5 designed as a flow sensor from a further embodiment of a device according to the invention (not shown). The device can otherwise be configured according to the one in Fig.

[0084] The sensor device 5 is designed as shown in the embodiment 1 or 2. It is preferably approved for installation in a drinking water system (not shown). The sensor device 5 is designed to be integrated into a fluid line (not shown) such that its longitudinal center axis L is vertically oriented, with the end of the sensor device 5 shown on the left in Fig. 3 being positioned above or geodesically higher than the end of the sensor device 5 shown on the right in Fig. 3. Furthermore, the sensor device 5 is integrated into the fluid line in such a way that fluid can flow through it, as indicated by arrow P1. For example, the sensor device 5 can be switched on at a flow rate of 600 mL / min.

[0085] The sensor device 5 has an inlet socket 19 with a threaded connection 20 and an outlet socket 21 with a threaded connection 20. The inlet socket 19 Oßowski, Wilma OSS017PWO 17

[0086] and / or the outlet socket 21 is or is partially or completely made of a plastic, for example PVC.

[0087] Furthermore, the sensor device 5 has a connecting pipe 22 that connects the inlet socket 19 to the outlet socket 21. The connecting pipe 22 is partially inserted into the inlet socket 19 and partially into the outlet socket 21 and is bonded to both. The connecting pipe 22 is made partially or completely of a plastic, for example, PVC. The connecting pipe 22 can be partially or completely transparent.

[0088] Furthermore, the sensor device 5 has a double socket 23 which is axially connected to the inlet socket 19 with respect to the flow direction indicated by arrow P1 and which is glued into the connecting pipe 22, with one end of the double socket 23 facing the inlet socket 19 being flush with one end of the connecting pipe 22 facing the inlet socket 19. The double socket 23 has a circumferential separating web 24 in its center, which axially divides the double socket 23 into two socket sections 25 and 26. The double socket 23 is communicatively connected to the inlet socket 19 on the inlet side.

[0089] The sensor device 5 also includes a pipe section 27, which is inserted into the socket section 25 and bonded to the double socket 23. The pipe section 27 is made partially or completely of a plastic, for example, PVC. The pipe section 27 projects axially out of the double socket 23 in the direction of the outlet socket 21.

[0090] Furthermore, the sensor device 5 has a conduit 28, the end section 29 of which, facing the inlet socket 19, is flared so that the outer diameter D of the end section 29 is larger than the inner diameter d of the separating web 24. The conduit 28 is axially movable on the double socket 23 by a limited amount, for example, by 16 mm. The conduit 28 is made partially or completely of a plastic, for example, PVC. In Fig. 3, the conduit 28 is shown in an extended end position, in which the flared end section 29 of the conduit 28 abuts axially against the separating web 24. The conduit 28 can be moved away from the outlet socket 21 from the extended end position. (Oßowski, Wilma OSS017PWO 18)

[0091] be moved so that the widened end section 29 of the conduit 28 enters the threaded socket of the inlet sleeve 19.

[0092] The other end of the conduit 28 is closed with a cap 30. The cap 30 is made partially or entirely of a plastic, for example, PVC. The cap 30 may be bonded to the conduit 28. At least one permanent magnet 31, for example, a non-corrosive ceramic neodymium magnet, is arranged in the cap 30. After axial displacement of the conduit 28 away from the outlet socket 21, the cap 30 abuts one of the axial end faces of the pipe section 27 facing the outlet socket 21, thereby limiting the movement of the conduit 28 in the opposite direction. The conduit 28 is then in its retracted end position.

[0093] At least one opening 32 is formed in a central section of the pipe 28. Fluid entering the pipe 28 via the end section 29 can exit the pipe 28 again through the opening 32. The opening 32 is arranged on the pipe 28 such that it is completely within the pipe section 27 when the pipe 28 is in its rest position, in which the pipe 28 is displaced maximally towards the inlet socket 19. In this rest position, the cap 30 abuts axially against the free end of the pipe section 27, with the end section 29 of the pipe 28 being at least partially within the threaded socket 20 of the inlet socket 19.Furthermore, the opening 32 is arranged on the conduit 28 such that, when the conduit 28 is in its maximum flow position, in which it is displaced maximally towards the outlet socket 21, the opening 32 is partially located inside and partially outside the conduit section 27. In the maximum flow position, the end section 29 of the conduit 28 abuts axially against the separating web 24 of the double socket 23. In the maximum flow position, for example, 80% of the opening 32 can be located outside the conduit section 27 and 20% inside the conduit section 27, as indicated in Fig. 3. The opening 32 can be circular, oval, elliptical, or polygonal. The opening 32 can, for example, have a diameter of 8 mm.Two or more corresponding openings 32 can also be arranged circumferentially offset from each other on the conduit 28. Oßowski, Wilma OSS017PWO 19.

[0094] The sensor device 5 also includes a magnetic switch 33, which is attached to the outside of the connecting tube 22, and a signal cable 34 electrically connected to the magnetic switch 33.

[0095] Furthermore, the sensor device 5 has a casing 35 which is connected at its ends to the inlet sleeve 19 and the outlet sleeve 21, in particular by bonding. The casing 35 is made partially or completely of a plastic, for example PVC. The signal cable 34 is led to the outside through a radial bore 36 in the casing 35.

[0096] If no fluid flows through the sensor device 5, the conduit 28 is in its rest position due to the force of gravity acting upon it. When a fluid is passed through the sensor device 5, the conduit 28 is displaced towards the outlet socket 21, allowing the fluid to exit the conduit 28 through the opening 32. During this displacement of the conduit 28, the permanent magnet 31 is also displaced relative to the magnetic switch 33, causing the magnetic field generated by the permanent magnet 31 in the area of ​​the magnetic switch 33 to change such that the magnetic switch 33 is actuated or switched. The magnetic switch 33 outputs a corresponding switching signal via the signal cable 34, which can be supplied, for example, to monitoring electronics according to Fig. 1 or 2.When the flow of fluid through the sensor device 5 is switched off again, the conduit 28 returns to its rest position, taking the permanent magnet 31 with it, thus ending the actuation of the magnetic switch 33. The magnetic switch 33 then no longer outputs a signal.

[0097] Fig. 4 shows a circuit diagram of a further embodiment of a device 1 according to the invention for operating a fluid line of a drinking water installation in a house (not shown), which has at least one electrically actuated shut-off device (not shown in Fig. 4). Due to its size, the circuit diagram is split between Figs. 4A and 4B, so that the complete circuit diagram can be seen by viewing both Figs. 4A and 4B together.

[0098] The device 1 has a temperature module 12 with a positive input terminal +, a negative input terminal - and two relay terminals KO and K1 and Oßowski, Wilma OSS017PWO 20

[0099] The temperature module 12 is configured as a normally closed contact. The temperature module 12 has a relay (not shown) that closes (switches on) as soon as a measured value supplied to the temperature module 12 by a sensor device (not shown) of the device 1, configured as a temperature sensor, falls below a temperature limit set and thus predetermined on the temperature module 12. The relay terminal KO and the positive input terminal + of the temperature module 12 are bridged, i.e., electrically connected to each other.

[0100] Furthermore, the device 1 has a relay board 13, also called a relay card, with a self-holding function, which has a positive input terminal +, a negative input terminal -, a positive control input terminal +IN and the terminals NO (normally open; contact open in the idle state), NC (normally closed; contact closed in the idle state) and CO (common; common contact).

[0101] Furthermore, the device 1 has a time module 15 which has a positive input terminal +, a negative input terminal -, a positive trigger terminal +T, a negative trigger terminal -T and the terminals NO (normally open; contact open in idle state), NC (normally closed; contact closed in idle state) and CO (common; common contact).

[0102] Furthermore, the device has 1 connection terminals A to Z and A1, B1 and C1.

[0103] Furthermore, the device 1 has a Wifi module 41 which has a positive input terminal +, a negative input terminal -, an output terminal OUT and two relay terminals KO and K1.

[0104] Furthermore, the device 1 has a Wifi module 42 which has a positive input terminal +, a negative input terminal -, an output terminal OUT and two relay terminals KO and K1.

[0105] Device 1 also has six relays 37, 38, 39, 40, 43, and 44. Each of these relays 37, 38, 39, 40, 43, and 44 has one positive input terminal +, one negative input terminal -, two NO (normally open) terminals, two NC (normally closed) terminals, and two CO (common) terminals, whereby each Oßowski, Wilma OSS017PWO 21

[0106] Two changeover contacts, W1 and W2, are formed. Relay 43 has a 230V coil input, comprising the positive input terminal + and the negative input terminal -, while the remaining relays 37, 38, 39, 40, and 44 each have a 12V input, formed by the respective positive input terminal + and the respective negative input terminal -. The changeover contact W2 of relay 44 is designed for switching 230V.

[0107] The electrical components of device 1 shown in Fig. 4 can form a monitoring electronics system according to the embodiment shown in Fig. 1. The electrical circuitry of the electrical components of device 1 shown in Fig. 4 is described both in Fig. 4 itself and in the following description.

[0108] The OUT contact of the Wi-Fi module 41 is electrically connected to the positive input terminal + of relay 39. The Wi-Fi module 41 is supplied with a constant voltage of 12 V via its input terminals + and -. For this purpose, the input terminals + and - of the Wi-Fi module 41 are electrically connected to terminals J and K, with terminal J carrying a positive electrical potential and terminal K carrying a negative electrical potential. A low-voltage power supply (not shown) can be connected to terminals J and K for this purpose. The K0 terminal of the Wi-Fi module 41 is electrically connected to relay contact CO of changeover contact W2 of relay 38 and electrically to relay contact CO of changeover contact W2 of relay 39.The K1 terminal of the Wifi module 41 is electrically connected to the NO relay contact of the changeover contact W2 of the relay 38 and electrically to the NO relay contact of the changeover contact W2 of the relay 39.

[0109] The OUT contact of the Wi-Fi module 42 is electrically connected to the IN control terminal of the relay board 13. The Wi-Fi module 42 is supplied with a constant voltage of 12 V via its + and - input terminals, which are electrically connected to terminals J and K. The K0 terminal of the Wi-Fi module 42 is electrically connected to the CO contact of the changeover contact W2 of relay 40. The K1 terminal of the Wi-Fi module 42 is electrically connected to the NO contact of the changeover contact W2 of relay 40. Oßowski, Wilma OSS017PWO 22

[0110] Relay board 13 is supplied with a constant voltage of 12 V via its input terminals + and -. For this purpose, the input terminals + and - of relay board 13 are electrically connected to terminals J and K. The control terminal IN of relay board 13 is electrically connected to the relay contact NO of relay board 13. Contact CO of relay board 13 is electrically connected to terminal J to receive the constant voltage. The contact NC of relay board 13 remains unconnected. Relay board 13 latches when it is controlled or switched by the timer module 15 via its relay contact NO. A reset can be performed by unplugging the device 1's low-voltage power supply (not shown) from a wall socket (not shown).

[0111] The positive input terminal + and the positive trigger terminal +T of the time module 15 are electrically connected to each other and are electrically connected to contact K1 of the temperature module 12. The negative input terminal - and the negative trigger terminal -T are electrically connected to each other and are electrically connected to terminal K. Relay contact CO of the time module 15 is electrically connected to terminal J. Relay contact NO of the time module 15 is electrically connected to the control terminal IN of the relay board 13.

[0112] The positive input terminal (+) of relay 37 is electrically connected to terminal S. The CO contact of changeover contact W1 of relay 37 is electrically connected to terminal J. The NO contact of changeover contact W1 of relay 37 is electrically connected to terminal K1 of temperature module 12. The negative input terminal (-) of relay 37 is electrically connected to terminal K. The CO contact of changeover contact W2 of relay 37 is electrically connected to terminal T. The NC contact of changeover contact W2 of relay 37 is electrically connected to terminal U. The NO contact of changeover contact W2 of relay 37 is electrically connected to terminal V. Relay 37 can be switched via terminal S. The NO contact of changeover contact 1 of relay 37 can switch time module 15.

[0113] The positive input terminal + of relay 38 is electrically connected to the NO contact of relay board 13. The CO contact of changeover contact W1 of relay 38 is electrically connected to the NC contact of changeover contact W1 of relay board 13. (Oßowski, Wilma OSS017PWO 23)

[0114] 40 connected. The NC contact of changeover contact W1 of relay 38 is electrically connected to terminal L, terminal N, and the CO contact of changeover contact W2 of relay 43. The CO contact of changeover contact W2 of relay 38 is electrically connected to terminal KO of the Wi-Fi module 41. The NO contact of changeover contact W2 of relay 38 is electrically connected to terminal K1 of the Wi-Fi module 41. The negative input terminal - of relay 38 is electrically connected to terminal K. Relay 38 can be switched via the IN terminal of relay board 13. The changeover switch W1 of relay 38 switches the electrical voltage from terminals L and N and the CO contact of changeover contact W2 of relay 43. The second changeover contact W2 of relay 38 is potential-free and switches terminals KO and K1 of the Wi-Fi module 41.

[0115] The positive input terminal (+) of relay 39 is electrically connected to the OUT terminal of the Wi-Fi module 41. Relay contact CO of changeover contact W1 of relay 39 is electrically connected to terminal J. Relay contact NC of changeover contact W1 of relay 39 is electrically connected to terminal R and to the positive input terminal (+) of the temperature module 12. Relay contact NO of changeover contact 1 of relay 39 is electrically connected to terminal W. Relay contact CO of changeover contact 2 of relay 39 is electrically connected to terminal KO of the Wi-Fi module 41. Relay contact NO of changeover contact W2 of relay 39 is electrically connected to contact K1 of the Wi-Fi module 41. The negative input terminal - of relay 39 is electrically connected to terminal K. Relay 39 can be switched via the OUT output of the Wi-Fi module 41.The first changeover contact W1 of relay 39 can switch off the electrical voltage from terminal R and temperature module 12. The NO contact of changeover contact W1 of relay 39 serves as a 12V output, which is connected to terminal W. The potential-free changeover contact W2 of relay 39 is connected to terminals KO and K1 of the Wi-Fi module 41.

[0116] The positive input terminal + of relay 40 is electrically connected to the NO contact of relay board 13. The CO contact of changeover contact W1 of relay 40 is electrically connected to terminal J. The NC contact of changeover contact W1 of relay 40 is electrically connected to the CO contact of changeover contact W1 of relay 38. The NO contact of changeover contact 1 of relay 40 is connected to the terminal J. (Oßowski, Wilma OSS017PWO 24)

[0117] The relay 40 is electrically connected to terminal X. Relay contact CO of changeover contact 2 of relay 40 is electrically connected to terminal KO of the Wi-Fi module 42. Relay contact NO of changeover contact W2 of relay 40 is electrically connected to contact K1 of the Wi-Fi module 42. Relay 40 can be switched via relay contact NO of relay board 13. Changeover contact W1 of relay 40 serves as a 12V output, which is connected to terminal X. The potential-free changeover contact W2 of relay 40 is connected to terminals K0 and K1 of the Wi-Fi module 42.

[0118] The positive input terminal (+) of relay 44 is electrically connected to the NO contact of relay board 13. The CO contact of changeover contact W1 of relay 44 is electrically connected to terminal A1. The NC contact of changeover contact W1 of relay 44 is electrically connected to terminal B1. The NO contact of changeover contact 1 of relay 44 is electrically connected to terminal C1. The CO contact of changeover contact 2 of relay 44 is electrically connected to terminal A. The NC contact of changeover contact W2 of relay 44 is electrically connected to the CO contact of changeover contact W1 of relay 43. Relay 44 can be switched via the NO contact of relay board 13. The potential-free changeover contact W1 of relay 44 is connected to terminals A1, B1, and C1. The changeover contact W2 of relay 44 can disconnect the supply line via terminal A.

[0119] The positive input terminal (+) of relay 43 is electrically connected to terminal D. The negative input terminal (-) of relay 43 is electrically connected to terminal B. The CO contact of changeover contact 1 of relay 43 is electrically connected to the NC contact of changeover contact W2 of relay 44. The NO contact of changeover contact W1 of relay 43 is electrically connected to terminal G. The CO contact of changeover contact W2 of relay 43 is electrically connected to the NC contact of changeover contact W1 of relay 38. The NO contact of changeover contact W2 of relay 43 is electrically connected to terminal K1 of temperature module 12. Relay 43 can be switched on with 230 V via terminal D. The NO contact of changeover contact W1 of relay 43 is electrically connected to terminal G to form a supply output.The time module 15 can be switched on via the changeover contact W2 of relay 43. Oßowski, Wilma OSS017PWO 25.

[0120] Terminal KO of temperature module 12 is electrically connected to the positive input terminal + of temperature module 12. Terminal K1 is the voltage output for timer module 15. Timer module 15 is started when a temperature reading supplied to temperature module 12 falls below a predefined temperature threshold. Alternatively, timer module 15 is started via relay 37 when relay 37 receives a reading from a flow sensor in device 1 that exceeds a predefined minimum flow rate. The positive input terminal + of temperature module 12 is electrically connected to the NC contact of changeover contact 1 of relay 39. The negative input terminal - of temperature module 12 is electrically connected to terminal K. Temperature module 12 can switch an electrical voltage to timer module 15 via its terminal K1.

[0121] Terminal A can be used to connect a live wire (phase L) to supply a 230V appliance. Terminal B can be used to connect a neutral wire (neutral N) to supply a 230V appliance. Terminal C can be used to connect a protective earth (PE) to supply a 230V appliance.

[0122] A phase (L) from an external power supply can be connected to terminal D. A neutral conductor from the external power supply can be connected to terminal E. A protective earth (PE) conductor from the external power supply can be connected to terminal F.

[0123] A phase conductor (L) for a power supply to an external device can be connected to terminal G. A neutral conductor for a power supply to an external device can be connected to terminal H. A protective earth conductor (PE) for a power supply to an external device can be connected to terminal I.

[0124] A positive phase of a 12V DC power supply can be connected to terminal J. A negative phase of the 12V DC power supply can be connected to terminal K.

[0125] A positive phase of a 12V DC power supply can be connected to terminal L for an external device, for example for a drive of a fluid line. (Oßowski, Wilma OSS017PWO 26)

[0126] The terminal M can be connected to the shut-off device. A negative phase of a 12V DC power supply for an external device, for example for a drive of a shut-off device located on a fluid line, can be connected to terminal M.

[0127] A positive phase of a 9V input voltage from a 9V battery (not shown) of device 1 can be connected to terminal N. A negative phase of the 9V input voltage from the 9V battery can be connected to terminal O.

[0128] A water detector (not shown) of device 1 can be connected to terminals P and Q.

[0129] A magnetic switch, as shown in Fig. 3, can be connected to terminals R and S.

[0130] Terminal T is electrically connected to relay contact CO of changeover contact 2 of relay 37. Terminal U is electrically connected to relay contact NC of changeover contact 2 of relay 37. Terminal V is electrically connected to relay contact NO of changeover contact 2 of relay 37. Terminals T, U, and V are potential-free.

[0131] Terminal W is electrically connected to relay contact CO of changeover contact W1 of relay 39. When the output OUT of the Wi-Fi module 41 is switched or activated, the electrical voltage at terminal R and temperature module 12 is cut off or switched off, so that water can be drawn from a fluid installation equipped with device 1 indefinitely without device 1 generating the electrical warning signal and without device 1 cutting off the power supply to a shut-off device located on a fluid line of the fluid installation.

[0132] The terminal X is electrically connected to the relay contact CO of the changeover contact W1 of relay 40.

[0133] When the output OUT of the Wi-Fi module 42 is switched or activated, the self-holding function of the relay board 13, and thus of the device 1, is triggered, and Oßowski, Wilma OSS017PWO 27

[0134] The power supply to a shut-off device located on a fluid line of the fluid installation is shut off by interrupting the 230V supply line. The OUT output of the Wi-Fi module 41 can be activated by a software application running on a mobile device (not shown) connected to the Wi-Fi module 41 via a cellular or WLAN network. The OUT signal output by the Wi-Fi module 41 serves to shut off the power supply to terminal R and to deactivate the timer module 15. This prevents any further input signals from reaching the timer module 15, thus preventing its activation. During this shutdown, contacts KO and K1 of the Wi-Fi module 41 are short-circuited via the relay contacts CO and NO of changeover contact W2 of relay 39. This causes the Wi-Fi module 41 to send a push notification that can be received by a mobile device running the software application.The NO relay contact of the changeover contact W1 of relay 39 can be used for acoustic and / or optical signaling of the shutdown.

[0135] The OUT output of the Wi-Fi module 42 can be activated, for example, when the Wi-Fi module 42 receives an external signal, such as one received via a Wi-Fi network from a water detector. The OUT output of the Wi-Fi module 42 can also be activated by a software application running on a mobile device (not shown) connected to the Wi-Fi module 42 via a cellular or Wi-Fi network. The OUT signal output by the Wi-Fi module 42 is used to latch relay board 13 via its control input IN. The OUT signal also switches relay 40. The changeover contact W2 of relay 40 then shorts terminals K0 and K1 of the Wi-Fi module 42, causing the Wi-Fi module 42 to generate and transmit a push notification that can be received by a mobile device running the software application.The NO contact of the changeover contact W1 of relay 40 can be used for acoustic and / or visual signaling of the shutdown. Additionally, relay 38 energizes. The electrical voltage at terminals L and N is disconnected from terminal CO of the timer module 15. Furthermore, relay 44 energizes, thereby terminating the power supply via terminal A.

[0136] A negative phase is connected to terminals Y and Z. For example, if a buzzer or a light is connected to terminal W or XOßowski, Wilma OSS017PWO 28

[0137] If the buzzer or light is connected, it can also be connected to terminal Y or Z in order to apply an electrical voltage to the buzzer or light.

[0138] If, for example, device 1 is used in conjunction with a well system (not shown), a dry-run protection unit (not shown) or its outputs can be connected to terminals D, E, and F. The phase connected to terminal D can switch relay 43 and activate timer module 15, whereby the NO contact of changeover contact W1 of relay 43 is electrically connected to terminal G, which can then be used to switch, activate, and deactivate a pump in the well system. If the dry-run protection unit were defective, the pump would continue to operate uncontrollably without device 1. However, since device 1 also activates timer module 15, timer module 15 switches off the electrical voltage to the pump after the specified maximum time period has elapsed, thus switching off the pump.

[0139] The positive input terminals + of components 41, 42, 13, 15, and 12 are electrically connected to terminal J, which is not shown in Fig. 4 for clarity. The negative input terminals - of components 41, 42, 13, 15, and 12 are electrically connected to terminal K, which is also not shown in Fig. 4 for clarity. This also connects the negative trigger terminal -T to terminal K. The relay terminals CO of relay board 13, time module 15, changeover contact W1 of relay 37, changeover contact W1 of relay 39, and changeover contact W1 of relay 40 are electrically connected to terminal J, which is also not shown in Fig. 4 for clarity.The NC relay contacts of relay board 13, time module 15, changeover contact W1 of relay 37, changeover contact W2 of relay 38, changeover contact W2 of relay 39, changeover contact W2 of relay 40, changeover contact W1 of relay 43, and changeover contact W2 of relay 43 remain unused. The negative input terminals of relays 37, 38, 39, 40, and 44 are electrically connected to terminal K, which is not shown in Fig. 4 for clarity. The NO relay contact of changeover contact W1 of relay 38 and changeover contact W2 of relay 44 remain unused. Oßowski, Wilma OSS017PWO.

[0140] 29

[0141] Reference symbol list

[0142] 1 Device

[0143] 2 shut-off device

[0144] 3 Fluid line

[0145] 4 Fluid installation

[0146] 5 Sensor setup

[0147] 6 Monitoring electronics

[0148] 7 power cables

[0149] 8 relays

[0150] 9 Water alarm unit

[0151] 10 transformer power supply

[0152] 11 Circuit board

[0153] 12 Temperature module

[0154] 13 Relay board

[0155] 14 relay boards

[0156] 15 Time module

[0157] 16 relays

[0158] 17 relays

[0159] 18 cables

[0160] 19 Inlet sleeve

[0161] 20 threaded fittings

[0162] 21 Exit socket

[0163] 22 Connecting pipe

[0164] 23 double socket

[0165] 24 dividing bridge

[0166] 25 socket section

[0167] 26 socket section

[0168] 27 pipe sections

[0169] 28 conduit pipe

[0170] 29 End section of 28

[0171] 30 cap

[0172] 31 Permanent magnet

[0173] 32 Breakthrough at 28Oßowski, Wilma OSS017PWO

[0174] 30

[0175] 33 magnetic switches

[0176] 34 signal cables

[0177] 35 Sheathing tube

[0178] 36 bore at 35

[0179] 37 relays

[0180] 38 relays

[0181] 39 relays

[0182] 40 relays

[0183] 41 WiFi module

[0184] 42 WiFi module

[0185] 43 relays

[0186] 44 relays

[0187] L Longitudinal center axis of 5

[0188] d inner diameter of 24

[0189] D outer diameter of 29

[0190] AR connection terminals

[0191] S signal connection

[0192] + positive input connection

[0193] IN control connection

[0194] +IN positive control connection

[0195] +T positive trigger connection

[0196] +9V positive output terminal negative input terminal

[0197] -T negative trigger connector

[0198] -9V negative output terminal

[0199] KO connection of 12

[0200] K1 connection of 12

[0201] NO connection from 13, 14

[0202] NC connection of 13, 14

[0203] CO connection of 13, 14, 15

[0204] OUT output from 41, 42

[0205] SIGN signal input of 15

[0206] GND grounding connection of 15

[0207] W1 Change contact Oßowski, Wilma OSS017PWO

[0208] 31 W2 changeover contact

Claims

Oßowski, Wilma OSS017PWO 1 Patent claims 1. Device (1) for operating a fluid line (3) having at least one electrically actuated shut-off device (2), comprising the device (1): at least one sensor device (5) in the form of a flow sensor that can be arranged on the fluid line (3); and at least one monitoring electronics unit (6) connected to the sensor device (5), which is configured to generate an electrical warning signal and / or to shut off the electrical power supply to the shut-off device (2) if measured values ​​of the sensor device (5) continuously meet a predetermined criterion for a period of time longer than a predetermined maximum period; characterized in that the sensor device (5) is designed such that it can be integrated into a fluid line such that a longitudinal central axis (L) of the sensor device (5) is vertically oriented; the sensor device (5) comprising: an inlet socket (19) with a threaded fitting (20) and an outlet socket (21) with a threaded fitting (20); a connecting pipe (22) that connects the inlet socket (19) to the outlet socket (21) in a communicating manner; a magnetic switch (33) which is attached to the outside of the connecting tube (22), and a signal cable (34) which is electrically connected to the magnetic switch (33); a double socket (23) which is axially connected to the inlet socket (19) with respect to a flow direction and which is glued into the connecting pipe (22), wherein an end of the double socket (23) facing the inlet socket (19) is arranged flush with an end of the connecting pipe (22) facing the inlet socket (19), the double socket (23) has a circumferential separating web (24) in the middle, which divides the double socket (23) axially into two socket sections (25) and (26), and the double socket (23) is connected to the inlet socket (19) in a communicating manner on the inlet side; a pipe section (27) which is inserted into the socket section (25) and glued to the double socket (23) and projects axially out of the double socket (23) in the direction of the outlet socket (21); and a conduit (28) whose end section (29) facing the inlet socket (19) is flared, so that an outer diameter (D) of the Oßowski, Wilma OSS017PWO 2 end section (29) is larger than an inner diameter (d) of the separating web (24), wherein the conduit (28) is arranged axially movable on the double socket (23) to a limited extent between an extended end position and a retracted end position; wherein another end of the conduit (28) is closed with a cap (30) in which at least one permanent magnet (31) is arranged; and at least one opening (32) is formed in a central area of ​​the conduit (28), which is arranged on the conduit (28) such that the opening (32) is completely inside the pipe section (27) when the conduit (28) is in its retracted end position, and that the opening (32) is partially inside the pipe section (27) and partially outside the pipe section (27) when the conduit (28) is in its extended end position.

2. Device (1) according to claim 1, characterized in that the monitoring electronics (6) is configured to check whether the measured values ​​of the sensor device (5) designed as a flow sensor are continuously above a predetermined minimum flow value during the period which is longer than the predetermined maximum period.

3. Device (1) according to claim 1 or 2, characterized in that the monitoring electronics (6) is configured to generate an optical warning signal and / or an acoustic warning signal and / or a radio warning signal based on the electrical warning signal.

4. Device (1) according to one of claims 1 to 3, characterized in that the monitoring electronics (6) has at least one relay (13) with a self-holding function, with which the electrical power supply of the shut-off device (2) can be switched off.

5. Device (1) according to one of claims 1 to 4, characterized in that the length of the specified maximum time period is in a range of 10 min to 20 min.

6. Device (1) according to one of claims 1 to 5, characterized by at least one water detection unit (9) connected to the monitoring electronics (6), Oßowski, Wilma OSS017PWO 3 wherein the monitoring electronics (6) is configured to generate the electrical warning signal and / or to shut off the electrical power supply to the shut-off device (2) when the water detection unit (9) generates a signal indicating contact of the water detection unit (9) with water.

Images