Blister device and method for using a blister device

Description

[0001] The invention relates to a bladder insertion device with the features of independent claim 1, a bladder insertion device with the features of independent claim 2, a system with the features of independent claim 10, a method with the features of independent claim 11, and a method with the features of independent claim 12. .

[0002] Gas networks, such as those used to distribute natural gas to industry and households, are extensive and require regular maintenance and repairs. To ensure safe execution of these works, the affected sections of the pipeline must first be emptied to prevent accidental ignition of the natural gas they contain. This requires first stopping the gas flow in the affected section and then reducing the pressure or removing the gas. For this purpose, blowdown devices are used, such as those found in...

[0003] The device is known from US 4,144,908 A, DE 37 26 258 C2, EP 0197295, or DE 19846088 A1. A bladder insertion device is placed on a borehole drilled into the gas pipeline or inserted section by section into the borehole and / or the gas pipeline in such a way as to prevent unwanted gas from entering the environment. The bladder insertion device then allows at least one sealing bladder to be inserted into the interior of the gas pipeline. The sealing bladder is inserted into the pipeline in an empty state and then filled with compressed air or another pressurized gas. This causes the sealing bladder to inflate inside the gas pipeline, thus interrupting the gas flow.If another bladder insertion device is installed in the same manner at a different position along the pipeline, the pressure in the section of pipe enclosed between the bladder insertion devices can then be reduced and the natural gas contained therein can be removed from the pipeline. In the case of branch lines, such a section of pipe that can be emptied, or at least partially emptied, can also be achieved by installing only one bladder insertion device, with the relevant section extending between the bladder insertion device and a sealed end of the gas pipeline.

[0004] When pressure is reduced or a section of a gas pipeline is emptied, the natural gas contained in that section is released untreated into the environment and thus into the atmosphere. The problem here is that methane, the main component of natural gas, is particularly harmful to the environment and climate.

[0005] It is therefore an object of the present invention to overcome at least one of the disadvantages described above, at least partially. In particular, it is an object of the invention to advantageously further develop a bubble-setting device and / or to provide a bubble-setting device and a method for using a bubble-setting device, by which an uncontrolled escape of natural gas into the atmosphere during the at least partial emptying of gas pipeline segments or sections can be at least partially avoided.

[0006] The foregoing problem is solved by a bladder insertion device with the features of independent claim 1, a bladder insertion device with the features of independent claim 2, a system with the features of independent claim 10, a method with the features of independent claim 11, and a method with the features of independent claim 12. Further features and details of the invention will become apparent from the dependent claims, the description, and the drawings. Features and details described in connection with one of the bladder insertion devices according to the invention naturally also apply in connection with the system according to the invention and / or in connection with the methods according to the invention, and vice versa, so that the disclosure of the individual aspects of the invention always makes, or can make, reciprocal reference.

[0007] According to the invention, a bladder insertion device is provided for at least temporarily blocking and / or at least partially emptying at least one fluid-carrying pipeline, in particular a fluid-carrying pipeline section, comprising at least one collection container for at least partially collecting a fluid flow that can be directed out of the fluid-carrying pipeline, in particular the fluid-carrying pipeline section, by the bladder insertion device. In other words, it is provided that a bladder insertion device according to the invention comprises a collection container, wherein a fluid flow that can be directed out of a fluid-carrying pipeline or a fluid-carrying pipeline section by the bladder insertion device can be directed by the bladder insertion device into the interior of at least one collection container or can be collected in at least one collection container.

[0008] A bladder insertion device according to the invention, with at least one collection container, offers the advantage that the fluid, particularly natural gas, enclosed in a fluid-carrying pipeline section by at least one bladder insertion device, in particular two bladder insertion devices, does not escape uncontrollably or untreated into the environment when the relevant pipeline section is at least partially emptied or the internal pressure in the pipeline section is reduced in preparation for maintenance and / or repair work. Instead, the fluid, particularly natural gas, discharged from the pipeline can be collected in the container and subsequently used for further purposes and / or disposed of in a controlled manner. It is also conceivable that the fluid can be returned from the container to the pipeline after the work on the pipeline has been completed.

[0009] The invention further provides a bubble-setting device for at least temporarily blocking and / or at least partially emptying at least one fluid-carrying pipeline, in particular a fluid-carrying pipeline section, comprising at least one gas flare for at least partially combusting a fluid flow that can be directed out of the fluid-carrying pipeline, in particular the fluid-carrying pipeline section, by the bubble-setting device. In other words, it is provided that a bubble-setting device according to the invention comprises at least one gas flare, wherein a fluid flow that can be directed out of a fluid-carrying pipeline or a fluid-carrying pipeline section by the bubble-setting device is directed by the bubble-setting device to at least one gas flare and is at least partially combustible by the gas flare.

[0010] A bubble-setting device according to the invention, comprising at least one gas flare, offers the advantage that the fluid, particularly natural gas, enclosed in a fluid-carrying pipeline section by at least one bubble-setting device, in particular two bubble-setting devices, does not escape uncontrollably or untreated into the environment when the relevant pipeline section is at least partially emptied or the internal pressure in the pipeline section is reduced in preparation for maintenance and / or repair work. Instead, the fluid, particularly natural gas, discharged from the pipeline can be combusted in a controlled manner by the gas flare. While this releases combustion products, such as CO2, into the atmosphere, it does not release the untreated fluid or natural gas, thus reducing the environmental and climate impact compared to the untreated release of the fluid or natural gas.The amount of natural gas released into the atmosphere can be significantly reduced.

[0011] It can be provided, in particular, that the fluid-carrying pipeline is a natural gas-carrying pipeline or that the fluid carried in the pipeline is natural gas. Furthermore, it is conceivable that methane is a major component of the natural gas. In particular, it can be provided that the natural gas has a methane content of at least 70%, preferably at least 80%, and most preferably at least 85% (all values ​​in volume percent). The use of a bubble-setting device according to the invention in conjunction with other fluids or gases, especially those that are harmful to the environment and / or climate, is also, in principle, encompassed by the concept of the invention.

[0012] According to the invention, a bubble-setting device for at least temporarily blocking and / or at least partially emptying at least one fluid-carrying pipeline, in particular one fluid-carrying pipeline section, may comprise at least one collection container for at least partially collecting a fluid flow that can be directed out of the fluid-carrying pipeline, in particular the fluid-carrying pipeline section, by the bubble-setting device, and at least one gas flare for at least partially burning off a fluid flow that can be directed out of the fluid-carrying pipeline, in particular the fluid-carrying pipeline section, by the bubble-setting device.

[0013] Within the scope of the invention, it can be provided that the bubble-setting device comprises at least one exhaust pipe, wherein at least one first end of the exhaust pipe is in fluid communication with the interior of the fluid-carrying pipeline or the fluid carried in the fluid-carrying pipeline, in particular natural gas, or can be brought into such communication, and at least one second end of the exhaust pipe is in fluid communication with at least one collection container, in particular an interior of the collection container, and / or at least one gas flare or a mixing device, or can be brought into such communication. In other words, it can be provided that the bubble-setting device comprises at least one exhaust pipe for directing a fluid flow out of the fluid-carrying pipeline or the fluid-carrying pipeline section. For this purpose, at least one end of the exhaust pipe is arranged such that it is connected to the fluid by placing the bubble-setting device on it.The arrangement of the bubble-setting device on the fluid-carrying pipeline allows for fluid communication with the interior of the fluid-carrying pipeline or with the fluid, particularly natural gas, contained within the pipeline, such that the fluid in the fluid-carrying pipeline can preferably flow at least partially into the exhaust gas line. At least one further end of the exhaust gas line can be brought into fluid communication with at least one collection container and / or at least one gas flare, so that fluid discharged from the fluid-carrying pipeline through the exhaust gas line can be directed to or into the collection container or the gas flare.

[0014] At least one exhaust pipe can be designed in multiple sections. In other words, it can be provided that at least one exhaust pipe is interrupted at least in sections, or that further components, in particular at least one sensor element, at least one fluid conveying device and / or at least one mixing device, are integrated into or connected to the exhaust pipe.

[0015] Furthermore, it is conceivable that at least one shut-off device is arranged on the exhaust pipe, with which a fluid flow in the exhaust pipe can be interrupted, at least section by section. In other words, it can be provided that the exhaust pipe includes at least one shut-off device, whereby a fluid flow, in particular a gas flow, through the exhaust pipe can be interrupted or prevented, at least temporarily and / or at least section by the shut-off device. This has the advantage that an escape of fluid from the exhaust pipe can be specifically prevented, since without a shut-off device there would be a continuous escape of the fluid from the exhaust pipe, at least as long as there is an increased pressure in the pipe compared to the surroundings. A shut-off device also allows for the easy replacement of a collection container or...a gas flare at the blow-off device, without fluid escaping from the exhaust line into the environment during the changeover. At least one shut-off device can be designed, at least partially, as a ball valve, a butterfly valve, a gate valve, or a shut-off valve, or at least one shut-off device can comprise at least one ball valve, at least one butterfly valve, at least one gate valve, and / or at least one shut-off valve. In particular, the use of at least one ball valve offers the advantage of a reliable sealing or shut-off effect at a low cost.

[0016] It may be provided that the exhaust pipe has a constant diameter at least in sections, which offers the advantage of a constant fluid velocity in the exhaust pipe at least in sections and a simpler and more accurate measurement of fluid parameters such as pressure, temperature, volume flow rate, mass flow rate, total volume or total mass of the fluid discharged from the fluid-carrying pipe.

[0017] Furthermore, it is conceivable that the exhaust pipe includes at least one pressure-reducing device, whereby the pressure of a fluid flow conveyed in the exhaust pipe can be at least partially reduced by the pressure-reducing device. This offers the advantage that the pressure of the fluid flow exiting the exhaust pipe can be adapted to subsequent applications, such as at least partial combustion of the fluid flow in a gas flare. For example, high pressure in the fluid-carrying pipe can lead to high flow velocities in the gas flare, which make stable combustion difficult. At least one pressure-reducing device can be designed as a throttle valve. At least one pressure-reducing device can be at least partially controllable by a control unit of the bubble-setting device. For example,The pressure in the exhaust pipe behind the pressure reducing device is detected and the pressure reducing device is controlled in such a way that the pressure behind the pressure reducing device corresponds to a predetermined target value or essentially corresponds to it and / or is kept constant at least until the line pressure in the exhaust pipe before the pressure reducing device falls below the target value.

[0018] The invention provides for at least one sensor element, wherein the sensor element is capable of detecting at least one volume or volume flow rate and / or flow velocity of the fluid flow discharged from the fluid-carrying pipeline, preferably continuously or quasi-continuously, particularly in the exhaust gas line. In other words, the sensor element is designed to detect the volume flow rate and / or flow velocity of the discharged fluid as it is routed through the exhaust gas line into the collection tank and / or to a gas flare, preferably with time resolution. Thus, while the fluid is being routed from the fluid-carrying pipeline, particularly through the exhaust gas line, into the collection tank and / or to the gas flare, the volume flow rate and / or flow velocity of the fluid flow can be continuously or quasi-continuously monitored by the sensor element.It may also be provided that the total volume of gas removed from the fluid-carrying pipeline or the fluid-carrying pipeline section is reliably determined by a cumulative evaluation of the, preferably time-resolved, measured values.

[0019] It can be provided that at least one sensor element for detecting a volume or volume flow rate is designed as a flow sensor, wherein the flow sensor is configured to detect a flow velocity, preferably in the exhaust gas duct. By detecting the flow velocity, and knowing the flow cross-section or the internal cross-section of the exhaust gas duct, the volume flow rate can be directly calculated as the product of the flow velocity and the cross-sectional area. At least one flow sensor can be designed as a magnetic-inductive flow sensor or an ultrasonic flow sensor. The use of an ultrasonic or a magnetic-inductive flow sensor offers the advantage of a particularly reliable determination of the flow velocity.At least one flow sensor can also be designed to operate according to the differential pressure principle, preferably as a Pitot tube, Prandtl probe, or orifice plate. At least one flow sensor can also be designed as a volumetric flow sensor, in particular a variable area flow sensor.

[0020] At least one sensor element for detecting a volume or volume flow rate can be integrated into the exhaust pipe or form a section of the exhaust pipe. In other words, it can be provided that the exhaust pipe is interrupted at least in sections and / or the sensor element has a tubular section, wherein the tubular section of the sensor element is connected at a first side to a first part of the exhaust pipe, so that a fluid or fluid flow can flow from the first part of the exhaust pipe into the tubular section of the sensor element, and wherein the tubular section is connected at a second side to a second part of the exhaust pipe, so that a fluid or fluid flow can flow from the tubular section of the sensor element into the second part of the exhaust pipe. The measurement or detection of at least the volume or volume flow rate is then carried out by the sensor element.The measurement of volume flow and / or other measured variables can take place at least partially in the tubular section of the sensor element.

[0021] Within the scope of the invention, it can be provided that at least one sensor element is included, wherein the sensor element can detect at least one temperature and / or pressure and / or density of the fluid flow discharged from the fluid-carrying pipeline, preferably continuously or quasi-continuously, particularly in the exhaust pipe. This offers the advantage that, by additionally using a known volumetric flow rate, a corresponding mass flow rate can be determined. Furthermore, it can be provided that the total mass of the fluid flow discharged from the fluid-carrying pipeline or the fluid-carrying pipeline section, particularly through the exhaust pipe, is determined by a cumulative evaluation of the mass flow measurements, preferably with time resolution.

[0022] Within the scope of the invention, it is conceivable that at least one sensor element is included, wherein the sensor element can detect at least a mass or mass flow of the fluid flow discharged from the fluid-carrying pipeline, preferably continuously or quasi-continuously, particularly in the exhaust pipe. This offers the advantage of knowing the fluid mass extracted from the fluid-carrying pipeline as accurately as possible, which allows, for example, verification during a subsequent return of the fluid to the pipeline or by an additional measurement in the collection container, as to whether a portion of the fluid has escaped uncontrollably into the environment, e.g., through a leak. In the case of combustion of the fluid discharged from the pipeline, the advantage also arises that the emissions produced during combustion can be calculated as accurately as possible. At least one sensor element for detecting a mass or mass flow of the fluid flow is required.A mass flow meter can be designed as a Coriolis mass flow meter, a vortex mass flow meter, or a thermal mass flow meter. The sensor element can be designed such that it enables integrated measurement of the temperature, pressure, and volumetric flow rate of the fluid flow exiting the fluid-carrying pipeline, particularly through the exhaust pipe.

[0023] According to the invention, it is conceivable that at least one sensor element is included, wherein the sensor element can detect at least one concentration, preferably a natural gas concentration and / or methane concentration, in the fluid flow discharged from the fluid-carrying pipeline and / or in the exhaust pipe, preferably continuously or quasi-continuously, particularly in the exhaust pipe. In other words, it can be provided that at least one sensor element is included, by which the concentration of at least one gas, preferably natural gas and / or methane, in the fluid flow discharged from the fluid-carrying pipeline by the bubble-setting device or the exhaust pipe can be detected. This allows it to be assessed, particularly when a fluid mixture is present in the fluid-carrying pipeline or the fluid-carrying pipeline section, whether the natural gas content or the methane content is high enough to be detected.The methane content in the fluid stream discharged through the blowdown device is sufficient for ignition and / or stable combustion in the gas flare. The fluid mixture can, for example, comprise at least one natural gas and one inert gas, preferably nitrogen. If the natural gas content in the fluid mixture falls below a certain limit, the gas flare can extinguish, and the natural gas contained in the fluid stream supplied to the gas flare can escape unburned into the atmosphere.

[0024] Within the scope of the invention, it is optionally possible to include at least one sensor element, wherein the sensor element can detect at least one positional information regarding the current geographic position of the bubble-setting device. The sensor element can be configured as a GNSS (Global Navigation Satellite System) sensor. Preferably, at least one sensor element can be configured as a GPS sensor. The use of other satellite systems such as GLONASS, GALILEO, or BEIDOU is also encompassed by the concept of the invention. Position detection related to the bubble-setting device offers the advantage that the location where combustion gases and / or, if applicable, quantities of an untreated or unburned fluid were released into the atmosphere can be documented and recorded for subsequent analysis.

[0025] Furthermore, the invention may include at least one sensor element, wherein at least one leakage stream exiting the bubble-setting device can be detected by the sensor element. The leakage stream can be a leakage stream of the fluid discharged from the fluid-carrying pipeline or a fluid stream flowing into the environment. In other words, the invention may include at least one sensor element with which a leakage stream exiting the bubble-setting device, preferably at least one from the exhaust pipe, of the fluid discharged from the fluid-carrying pipeline through the bubble-setting device can be detected. The fluid contained in the fluid-carrying pipeline can be flammable or explosive.An uncontrolled leakage of the fluid into the immediate vicinity of the bladder-setting device thus poses an immediate risk to users present and surrounding infrastructure due to the possibility of accidental ignition. Leak detection therefore offers the advantage of increased workplace safety. Preferably, at least one sensor element can be designed for the continuous or quasi-continuous detection of a fluid or gas concentration, preferably a natural gas and / or methane concentration, in the ambient air.Furthermore, it can be provided that at least one sensor element is arranged in the immediate vicinity of at least one seal and / or shut-off device of the bladder setting device, wherein the seal and / or shut-off device is designed to seal the bladder setting device at least section by section in such a way that the fluid flow routed from the fluid-carrying pipeline through the bladder setting device does not escape from the bladder setting device into the environment. In other words, it can be provided that at least one sensor element for detecting a leakage flow is arranged in the immediate vicinity of a potential leakage location. A potential leakage location can, in particular, be a connection point between two fluid-carrying components.

[0026] With regard to the present invention, it is further conceivable that at least one sensor element is included, wherein at least one ambient pressure and / or one ambient temperature can be detected at the bubble setting device by the sensor element.

[0027] It can also be provided that at least one sensor element includes a communication interface, wherein at least one sensor data set can be transmitted via the communication interface to a receiver, in particular at least one communication unit and / or control unit of the bladder setting device. A sensor data set can include at least one measured value detected by the sensor element, in particular a volume or volumetric flow rate and / or a mass or mass flow rate and / or a flow velocity and / or a temperature and / or a pressure and / or a concentration. Furthermore, a sensor data set can include at least one timestamp, in particular one assigned to a measurement parameter. The timestamp allows a value detected by the sensor element to be assigned to a specific time of detection. The timestamp can be assigned to the sensor data set by the sensor element.However, it is also conceivable that the timestamp is subsequently assigned to the sensor data set, particularly by a control unit.

[0028] At least one sensor element, particularly for detecting a volume flow and / or flow velocity or flow rate and / or mass flow and / or pressure and / or temperature and / or concentration, can be designed such that detection can be performed repeatedly or with time resolution, particularly at fixed time intervals. Detection can be carried out at a frequency of at least 10 Hz, particularly at least 50 Hz, preferably at least 100 Hz, and most preferably at least 500 Hz or at least 1000 Hz. By reducing the time intervals or increasing the detection frequency, the accuracy of cumulative and / or averaged sensor values ​​or sensor data sets, such as the total volume of a fluid passing through the exhaust pipe or the average temperature of the fluid determined during this time, can be increased, thus enhancing the informative value of the sensor data.

[0029] At least one sensor element can be configured for the integrated acquisition of multiple measured variables. In other words, a sensor element can comprise at least two sensors, preferably a plurality of sensors, each of which is capable of acquiring at least one measured variable. In particular, at least one sensor element can be configured for the integrated acquisition of a volume or volume flow rate and / or a flow velocity and / or a pressure and / or a temperature and / or a density and / or a concentration, especially in the fluid flow discharged from the fluid-carrying pipeline and / or an exhaust line of the bubble-setting device. At least one sensor element can be integrated into a control unit of the bubble-setting device.

[0030] It may further be provided that at least one control unit is included, in particular for the at least partially automated control of the bubble setting device. It may be provided that the control unit can be brought into at least temporary signal and / or communication communication with at least one communication unit and / or evaluation unit and / or alarm unit and / or mixing device and / or fluid conveying device and / or shut-off device and / or at least one sensor element and / or at least one pressure reducing device of the bubble setting device, or that at least one communication unit and / or at least one evaluation unit and / or at least one alarm unit and / or at least one mixing device and / or at least one fluid conveying device and / or at least one shut-off device and / or at least one sensor element of the bubble setting device can be at least partially controlled by the control unit.In other words, it can be provided that the control unit can be brought into a communication link, at least temporarily, with at least one sensor element of the bubble-setting device, so that at least one sensor data set or measured value detected by the sensor element can be received by the control unit. Based on the received sensor data set or measured value, a hazardous situation and / or malfunction of the bubble-setting device can be detected, preferably at least partially automatically, and / or the operation of the bubble-setting device can be adjusted. For example, it is conceivable that an alarm unit of the bubble-setting device can be activated, or is activated, upon detection of an increased natural gas concentration and / or methane concentration in the immediate vicinity of the bubble-setting device in order to warn users of the bubble-setting device who are nearby.It may also be provided that, based on the natural gas and / or methane concentration detected in the fluid flow discharged from the fluid-carrying pipeline through the bubble-setting device, the operation of a mixing device for producing an optimal fuel-air ratio for stoichiometric combustion in a gas flare can be adjusted, at least partially, in particular by adjusting the amount of supplied oxygen or oxygen-containing fluid mixture. Furthermore, the control unit can control at least one shut-off device such that a fluid flow, particularly in an exhaust pipe, can be blocked or is blocked, and / or can be released or is released, at least section by section.

[0031] It may be provided that at least one control unit and / or at least one communication unit and / or at least one sensor element and / or at least one evaluation unit and / or at least one fluid conveying device and / or at least one mixing device includes a connection, in particular a mains connection, for providing a power supply. In particular, it may also be provided that the power supply to at least one sensor element and / or at least one communication unit and / or at least one evaluation unit can be established by a connection to at least one control unit.

[0032] Within the scope of the invention, it may be advantageous that at least one communication unit is included, wherein the communication unit has at least one communication interface for wireless or wired communication, in particular for communication with at least one mobile device and / or at least one central server and / or at least one sensor element of the bladder setting device.In other words, it can be provided that the communication unit can be brought into communication, at least temporarily, in particular via at least one communication interface, with at least one sensor element and / or at least one evaluation unit and / or at least one alarm unit and / or at least one fluid conveying device and / or at least one mixing device and / or at least one display unit and / or at least one control unit of the bubble setting device and / or with at least one mobile device and / or with at least one central server. A communication unit offers at least the advantage that sensor data or a data set acquired via at least one sensor element of the bubble setting device can be sent or transmitted via the communication unit to a mobile device and / or a central server for further use, evaluation, and / or storage.Detected malfunctions and / or hazardous situations can also be documented accordingly.

[0033] The transmission of at least one sensor data set or other information from the communication unit to a mobile device and / or a central server can be carried out at least partially wirelessly and / or via cable. The transmission can be performed at least partially via a network, in particular a local area network or a global network, preferably the internet. At least one communication interface can be configured for wireless communication, in particular as a Bluetooth, Wi-Fi, or cellular interface. At least one communication interface can also be configured for wired communication, in particular as a USB or Ethernet interface. At least one communication unit can be integrated into a control unit of the bladder insertion device.

[0034] The invention may also include at least one data storage device, preferably volatile or non-volatile. In other words, it is conceivable that the bubble-setting device, in particular at least one control unit and / or at least one communication unit, comprises at least one data storage device, in particular volatile or non-volatile. This offers the advantage that sensor data sets or measured values ​​acquired by sensor elements can be stored at least temporarily in the bubble-setting device, in particular in the control unit and / or communication unit, and are not lost in the event of a power failure or loss of communication connection.In particular, if the communication unit is unable to establish a communication connection, it must be ensured that the recorded data can be stored at least until it can be sent via a communication connection by the communication unit to a mobile device and / or a central server.

[0035] Within the scope of the invention, it is conceivable that at least one evaluation unit is included for evaluating at least one sensor data set and / or at least one measured value acquired by a sensor element. In other words, the bubble-setting device can be provided with at least one evaluation unit, wherein at least one sensor data set or at least one measured parameter acquired by at least one sensor element can be evaluated by the evaluation unit. It can be provided that at least one evaluation unit is integrated into a communication unit and / or a control unit of the bubble-setting device. This offers the advantage of a particularly space-saving arrangement.

[0036] An evaluation can include comparing at least one measurement parameter detected by at least one sensor element with at least one limit value. This allows for a comparison of whether the measurement parameter exceeded a limit value, particularly one defined in advance, and / or whether the measurement parameter fell below a limit value, particularly one defined in advance. The evaluation can also include comparing at least two measured values ​​detected by different sensor elements, provided that at least a sufficient degree of agreement between the sensor values ​​can be determined. Furthermore, the evaluation can include calculating at least one mean value; in particular, the averaging can be a time-based averaging, preferably the averaging of measured values ​​detected by the sensor unit over a period of time underlying the measurements.The evaluation can also include at least the calculation of at least one cumulative measured value; in particular, the cumulative measured value can include at least two measured values ​​acquired successively by the sensor unit. Specifically, it can be provided that a volume flow and / or mass flow recorded over a period of time, particularly in an exhaust pipe, by at least one sensor element is accumulated to a total volume and / or a total mass, and / or that a pressure and / or temperature recorded over a period of time, particularly in an exhaust pipe, is averaged to an average pressure or average temperature. An evaluation unit offers the advantage that, based on acquired measured values ​​or evaluation results generated or generable by the evaluation unit, decisions regarding the operation and / or operational safety of the bladder insertion device can be made, at least partially, automatically.The operation of the bladder insertion device can be at least partially adapted.

[0037] For example, it is conceivable that if a natural gas and / or methane concentration in the immediate vicinity of the bubble-setting device exceeds a limit value, an alarm can be triggered, particularly by a control unit, or is triggered. This can be achieved, for example, by activating at least one alarm function of an alarm unit. It is also conceivable that if a natural gas and / or methane concentration in the immediate vicinity of the bubble-setting device exceeds a limit value, a fluid flow through at least one exhaust pipe is interrupted in at least one section of the exhaust pipe. This can be accomplished, for example, by controlling or moving at least one shut-off device from an open position to a closed position, preferably allowing a fluid flow to pass through the shut-off device in the open position.a fluid flow can be released through the shut-off device and in the shut-off position a fluid flow is prevented or can be prevented through the shut-off device.

[0038] It is also conceivable that if the natural gas and / or methane concentration in the fluid flow discharged from the fluid-carrying pipeline by the bubble-setting device falls below a certain limit, the supply of the fluid flow to a gas flare can be interrupted, particularly by a control unit, because combustion of the fluid flow in the gas flare can no longer be guaranteed. This can be achieved, for example, by actuating or moving at least one shut-off device from an open position to a closed position, wherein preferably in the open position the shut-off device is passable by a fluid flow or a fluid flow can be released through the shut-off device, and in the closed position a fluid flow through the shut-off device is prevented or can be prevented.It can also be provided that, if the natural gas and / or methane concentration in the fluid flow discharged from the fluid-carrying pipeline by the bubble-setting device falls below a limit value, the fluid flow discharged from the fluid-carrying pipeline can be directed into a collection tank instead of to a gas flare. This can be achieved, for example, by controlling at least two shut-off devices, whereby one shut-off device is moved from an open position to a closed position, thus preventing or allowing the flow of fluid to the gas flare, and another shut-off device is moved from a closed position to an open position, thus releasing or allowing the flow of fluid to the collection tank.

[0039] It may also be provided that, depending on the natural gas and / or methane concentration detected in the fluid flow discharged from the fluid-carrying pipeline, the operation of a mixing device is at least partially adjusted or adjustable. For example, it may be provided that, depending on the aforementioned concentration, the supply quantity of at least one other fluid, in particular oxygen or an oxygen-containing fluid mixture, is regulated, at least temporarily, in such a way that stoichiometric or superstoichiometric (excess oxygen) combustion takes place or is feasible in the gas flare.

[0040] It can further be provided that at least one evaluation unit can be brought into at least temporary signal or communication communication with at least one control unit, wherein at least one sensor data set or a measured value acquired by a sensor element can be communicated by the control unit to the evaluation unit, and an evaluation result determined by the evaluation unit can be transmitted from the evaluation unit to the control unit or received by the control unit. In this way, at least partially automated evaluation of sensor data can be carried out, and subsequently, at least partial control of the operation of the bladder-setting device can be performed by the control unit based on the evaluation result.

[0041] Within the scope of the invention, it may be provided that at least one alarm unit is included for the at least temporary emission of acoustic and / or optical warning signals. In other words, it may be provided that the bladder insertion device includes at least one alarm unit, wherein acoustic and / or optical warning signals can be emitted by the alarm unit. It may be provided that at least one alarm unit can be brought into at least temporary signal communication with at least one control unit, wherein the emission of acoustic and / or optical warning signals by the alarm unit can be activated and / or deactivated by the control unit.Upon detection of a malfunction and / or a hazardous situation, alarm signals can be activated, and these signals can be deactivated once the bladder-setting device returns to proper and / or safe operation. At least one alarm unit may include at least one light source for emitting visual warning signals. This light source may be an LED, particularly red or green. The use of easily understandable signal colors, such as red for malfunction or hazardous situation and green for safe or error-free operation, ensures that a user of the bladder-setting device is reliably and unambiguously informed of its current status. Furthermore, at least one alarm unit may include at least one speaker unit for emitting audible warning signals.In particular, the combined emission of acoustic and visual warning signals has proven especially reliable in providing an unambiguous warning to users or persons located near the bladder insertion device who may be at risk. At least one alarm unit can be integrated into the bladder insertion device's control unit.

[0042] Furthermore, the device may include at least one display unit for showing at least one piece of sensor information or at least one measured value acquired by at least one sensor element. The sensor information may be a time-series progression of at least one measured value acquired by a sensor element. The sensor information may also be a value, particularly one accumulated over a measurement period, and / or an instantaneous value. This offers the advantage that the measured values ​​acquired by at least one sensor element can be displayed to a user of the bladder insertion device, thus simplifying or enabling the user to monitor the operation of the bladder insertion device. At least one display unit may include a display, preferably an LED display. At least one display unit may be integrated into a control unit of the bladder insertion device.

[0043] Within the scope of the invention, it is conceivable that at least one mixing device is included for mixing the fluid stream discharged from the fluid-carrying pipeline with at least one further fluid introduced into the mixing device. The at least one fluid introduced into the mixing device can preferably be oxygen and / or an oxygen-containing fluid or gas mixture, in particular air or ambient air. If the fluid stream discharged from the fluid-carrying pipeline by the bubble-setting device is fed to a gas flare for combustion, the fluid stream can be pre-mixed with oxygen and / or an oxygen-containing fluid mixture in the mixing device. Preferably, the mixing ratio can be selected such that, with respect to the subsequent combustion in the gas flare, at least a stoichiometric combustion air ratio is present.In the gas flare, stoichiometric combustion of the fluid stream, particularly the natural gas stream, is feasible. Creating a superstoichiometric air-fuel ratio (combustion with excess air or oxygen, or lean combustion) is also conceivable. This offers the advantage of ensuring complete combustion of the fluid stream fed from the fluid-carrying pipeline into the gas flare, preventing the unburned or untreated fluid from being released into the atmosphere, as would be the case with substoichiometric (rich) combustion.

[0044] The mixing device can comprise a mixing chamber for the, preferably homogeneous, mixing of at least two fluid streams. The mixing chamber can include at least one static or active mixing element for mixing the fluids or fluid streams located in the mixing chamber. Furthermore, the mixing device can comprise at least one fluid connection, or preferably at least two or at least three fluid connections. It is conceivable that at least one fluid stream can be introduced into the mixing chamber of the mixing device via a fluid connection, or that at least one fluid connection is in fluid communication with the mixing chamber of the mixing device. For example, the fluid drawn out of the fluid-carrying pipeline by the bubble-setting device can be introduced into the mixing chamber via a first fluid connection.The mixing chamber must be capable of being introduced via a second fluid connection, and at least one further fluid, in particular oxygen or an oxygen-containing fluid mixture, must be introduced or introduced via a third fluid connection, and the fluid mixture produced in the mixing chamber must be transferred or transferable to the gas flare for combustion via a third fluid connection. The introduction of the at least one further fluid, in particular the oxygen or oxygen-containing fluid mixture, into the mixing chamber can be carried out or carried out, at least temporarily, using at least one pump or compressor and / or blower.

[0045] It is also conceivable that at least one fluid conveying device is included for the at least partial evacuation of the fluid-carrying pipeline or the fluid-carrying pipeline section and / or the collection tank. In other words, the bladder insertion device may include at least one fluid conveying device, whereby the fluid-carrying pipeline and / or at least one collection tank can be evacuated at least section by the fluid conveying device, or a negative pressure can be generated in at least one section of an exhaust pipe of the bladder insertion device. If the fluid contained in the fluid-carrying pipeline or the relevant pipeline section is directed into a collection tank or to a gas flare, a pressure difference can first be created between the collection tank and the fluid-carrying pipeline or the relevant pipeline section.The ambient pressure and the fluid-carrying pipeline can be utilized because the pipeline is typically subjected to a significantly higher pressure compared to the surrounding environment. Therefore, it is sufficient to establish fluid communication between the collection tank or gas flare and the fluid-carrying pipeline for the fluid to flow through the bubble-setting device, preferably through the exhaust gas line, into the collection tank. However, as the pressure in the pipeline decreases or as the pressure equalization between the pipeline and the collection tank or between the pipeline and the surrounding environment increases, this flow slows down or comes to a standstill. Further fluid transfer into the collection tank or to the gas flare is then no longer possible. By additionally using at least one fluid pumping device, the fluid flow from the fluid-carrying pipeline or the relevant section of pipeline into the collection tank or to the gas flare can be reliably maintained.This ensures a complete or substantially complete emptying of the fluid-carrying pipeline or the relevant pipeline section. At least one fluid transfer device can also be used to return the fluid collected in the holding tank back into the fluid-carrying pipeline, preferably via the exhaust pipe, after the work on the pipeline has been completed. This offers the advantage that further disposal or reuse of the collected fluid is unnecessary, and the fluid can be returned to its original purpose. At least one fluid transfer device can include at least one compressor or at least one blower.

[0046] At least one fluid conveying device can be configured to convey a fluid flow from the fluid-carrying pipeline, particularly through the exhaust pipe, into at least one collection container and / or to at least one gas flare. At least one fluid conveying device can also be configured to convey a fluid flow from at least one collection container, preferably through the exhaust pipe, into the fluid-carrying pipeline. In particular, when conveying the fluid flow into the collection container, it can be provided that the fluid flow is at least partially compressed by the fluid conveying device.The direction of operation of at least one fluid conveying device can also be reversible, so that the fluid conveying device can convey a fluid flow from the fluid-carrying pipeline, in particular through the exhaust pipe, into at least one collection container and / or to at least one gas flare, as well as a fluid flow from at least one collection container, preferably through the exhaust pipe, into the fluid-carrying pipeline. At least one fluid conveying device can be designed as a vacuum pump.

[0047] Within the scope of the invention, it is optionally possible that at least one locking element is included for at least temporarily fixing the bladder insertion device to the fluid-carrying pipeline. In other words, the bladder insertion device can be provided with at least one locking element, wherein the locking element is connectable to the fluid-carrying pipeline, at least section by section, in a form-fitting and / or force-fitting and / or reversible manner, in order to fix the bladder insertion device, preferably in a positionally fixed manner, to the fluid-carrying pipeline. This offers the advantage that unintentional mispositioning of the bladder insertion device during operation, e.g., due to unintentional contact with a user, can be effectively avoided.It may be provided that a positive-locking and / or force-locking connection between the locking element and the fluid-carrying pipeline and / or a section of the bladder insertion device can be established at least partially via a pipe clamp. It may be provided that the locking element has at least one pipe clamp, particularly at at least one end. Furthermore, the locking element may be designed, at least partially, as a rigid rod element.

[0048] It can further be provided that at least one collection container includes at least one sensor element for detecting pressure and / or temperature inside the container. By detecting pressure and / or temperature, and in particular using the ideal gas law in conjunction with the known internal volume of the collection container, the fluid mass collected in the container can be determined at least approximately. This value can be compared, preferably continuously or quasi-continuously, with a mass flow rate detected in the exhaust pipe or the corresponding cumulative total mass, preferably in an evaluation unit. This allows a leak or an unintentional escape of the fluid flow from the fluid-carrying pipeline into the environment in the area between the collection container and the detection position in the exhaust pipe to be reliably detected.This results in the advantage of increased operational reliability. Furthermore, the current fill level of the collection container can be determined and monitored, and a container change can be initiated as soon as a maximum fill level, maximum fill quantity, maximum internal pressure, and / or maximum internal temperature is detected. This effectively prevents damage to the collection container.

[0049] It can also be provided that at least one collection container has an internal volume or collection volume of at least 1 m³, preferably at least 10 m³, and particularly preferably at least 50 m³. Alternatively, at least one collection container can also be partially constructed from a flexible and / or foldable material. In other words, it can be provided that the collection container, when empty, can be folded at least once, preferably several times. This allows the volume of the collection container in its empty state to be significantly reduced compared to its volume when full, which greatly simplifies the transport of the empty collection container, especially when it has a large internal volume.

[0050] Furthermore, it is conceivable that at least one exhaust pipe is at least partially flexible or designed as a gas hose. The gas hose can be made of rubber and / or plastic, at least partially or in sections. The outer layer of the gas hose can also include at least one textile lining or layer. Using a gas hose offers the advantage that the positioning of a gas flare and / or a collection container relative to the blowpipe can be easily and flexibly adjusted due to the hose's flexibility. This allows for adjustments to specific terrain characteristics, depending on the location of the blowpipe, and ensures the stability of the collection container or gas flare.

[0051] It is also conceivable within the scope of the invention that at least one fluid conveying device and / or at least one collection container and / or at least one gas flare and / or at least one mixing device can be reversibly connected to at least one exhaust line or at least one section of the exhaust line of the bubble-setting device. The connection can be designed, at least partially, as a screw connection, in particular a tight or gas-tight one. This offers the advantage that the bubble-setting device can be at least partially disassembled for transport purposes, and in particular that at least one gas flare and / or at least one collection container and / or at least one fluid conveying device and / or at least one mixing device can be easily and flexibly replaced and / or maintained.With regard to a collection container, it is also conceivable that this is separated from the bladder setting device once it is completely filled and replaced by an empty collection container.

[0052] Furthermore, the invention may provide that at least one gas flare comprises a stand, wherein the stand ensures that the gas flare stands securely on a surface. The stand may preferably be designed as a tripod.

[0053] The above-mentioned problem is further solved by a system according to the invention for at least temporarily blocking and / or at least partially emptying at least one fluid-carrying pipeline, in particular a fluid-carrying pipeline section, comprising at least two bladder insertion devices, wherein at least one bladder insertion device is a bladder insertion device according to the invention or is configured according to one of claims 1 to 10. The system according to the invention offers the same advantages as those described with respect to the bladder insertion device according to the invention.

[0054] The above problem is further solved by a method according to the invention for using at least one bubble-setting device, wherein at least the following steps are carried out, preferably in the specified order: a) Directing a fluid flow from a fluid-carrying pipeline through the bubble setting device and b) at least partially collecting the fluid flow directed out of the fluid-carrying pipeline in a collection container.

[0055] In other words, a method according to the invention may involve, in a first step, the discharge of a fluid flow from a fluid-carrying pipeline or a fluid-carrying pipeline section through a bubble-setting device, in particular through an exhaust pipe. In a second step, the gas discharged from the fluid-carrying pipeline or the relevant pipeline section is at least partially collected in a collection container. This has the advantage that the gas discharged from the fluid-carrying pipeline does not escape into the environment, thus preventing environmental or climatic damage.

[0056] The method according to the invention offers the same advantages as those already explained with regard to the bladder-setting device or system according to the invention.

[0057] The above problem is further solved by a method according to the invention for using at least one bubble-setting device, wherein at least the following steps are carried out, preferably in the specified order: a) Directing a fluid flow from a fluid-carrying pipeline through the bubble setting device and c) at least partially burning off the fluid flow directed out of the fluid-carrying pipeline by a gas flare.

[0058] In other words, a method according to the invention may involve, in a first step, a fluid flow from a fluid-carrying pipeline or a fluid-carrying pipeline section being discharged through a bubble-setting device, in particular through an exhaust pipe. In a second step, the fluid discharged from the fluid-carrying pipeline or the relevant pipeline section is fed to a gas flare and at least partially combusted in or by the gas flare. This has the advantage that the gas discharged from the fluid-carrying pipeline does not escape untreated into the environment, thus at least reducing environmental and climate damage.

[0059] The method according to the invention offers the same advantages as those already explained with regard to the bladder-setting device or system according to the invention.

[0060] At least two steps of an experiment according to the invention, in particular steps a) and b) and / or a) and c) and / or b) and c), can be carried out simultaneously, at least section by section. For example, at least one measured value can also be acquired while the fluid flow is being directed out of the fluid-carrying pipeline through the bubble-setting device.

[0061] With regard to the present invention, it is conceivable that at least one of the following steps is additionally carried out: Acquisition of at least one measured value or sensor data set by at least one sensor element, evaluation of at least one measured value or sensor data set acquired by at least one sensor element by at least one evaluation unit, activation and / or deactivation of at least one alarm function depending on at least one evaluation result, preferably by a control unit, control of at least one shut-off device depending on at least one evaluation result, preferably by a control unit, for preventing and / or releasing a fluid flow in at least one section of at least one exhaust gas line, adjustment of the operation of at least one mixing device and / or fluid conveying device depending on at least one evaluation result.

[0062] The acquisition of at least one measured value or sensor data set can include at least one of the following steps: Detecting the volume or volume flow rate and / or flow velocity of the fluid flow discharged from the fluid-carrying pipeline, preferably in an exhaust line of the bubble-setting device, by at least one sensor element; detecting the density of the fluid flow discharged from the fluid-carrying pipeline, preferably in an exhaust line of the bubble-setting device, by at least one sensor element; detecting a concentration, preferably a natural gas concentration and / or methane concentration, in the fluid flow discharged from the fluid-carrying pipeline, preferably in an exhaust line of the bubble-setting device, by at least one sensor element; detecting a temperature and / or pressure of the fluid flow discharged from the fluid-carrying pipeline, preferably in an exhaust line of the bubble-setting device, by at least one sensor element.Acquiring at least one piece of positional information regarding the current geographical position of the bubble-setting device by at least one sensor element; acquiring ambient pressure and / or ambient temperature at the bubble-setting device by at least one sensor element; monitoring the environment of the bubble-setting device, at least section by section, for the presence of an increased natural gas or methane concentration; and / or acquiring at least one leakage stream escaping from the bubble-setting device by at least one sensor element.

[0063] When a sensor element acquires a measurement parameter, this acquisition can be continuous or quasi-continuous. In other words, the acquisition can take place at several successive points in time, allowing a temporal profile of the measured quantity or value to be determined and evaluated. Based on the temporal profile of a measured quantity, a mean value, particularly a time-averaged value, and / or a cumulative value over the relevant period can be calculated.

[0064] The evaluation of at least one measured value or sensor data set acquired by at least one sensor element can include at least one of the following steps: Comparing at least one measured value with a limit value, in particular a predefined one; comparing at least one measured value with at least one second measured value detected by a sensor element; calculating at least one, preferably time-based, average value of at least one measured quantity, preferably a temperature and / or a pressure and / or a density and / or a flow rate; calculating at least one, preferably over a period of time, cumulative measured value of at least one measured quantity, in particular a volume flow rate and / or a mass flow rate.

[0065] Activating and / or deactivating at least one alarm function may involve at least the activation and / or deactivation of the emission of acoustic and / or visual warning signals by an alarm unit.

[0066] Within the scope of the invention, it may be advantageous that, in addition, preferably after step a) and / or step b) and / or step c), at least one of the following steps is carried out: Creating at least one data set comprising at least one piece of fluid information, signing the at least one data set, preferably with a digital signature, transmitting the at least one data set to a mobile device and / or a central server, preferably by means of a communication unit, and storing the at least one data set on the mobile device and / or the central server.

[0067] Fluid information can include at least one measured quantity detected by a sensor element. The fluid information can include a time-dependent profile of the measured quantity. It can also include a time-dependent average value of the measured quantity. Furthermore, the fluid information can include a cumulative value of the measured quantity, preferably over a period of time. Preferably, a data set can contain a plurality of fluid information.

[0068] Preferably, the fluid information can contain at least one, preferably all of the following parameters or one of the following pieces of information: The total mass and / or total volume of the fluid discharged from the fluid-carrying pipeline, a geographical position of the bubble-setting device, preferably the geographical position where the bubble-setting device was located, particularly during step a).

[0069] The creation of at least one data record can be carried out by a control unit and / or communication unit of the bubble-setting device. The transmission of at least one data record can be carried out, at least partially, by a communication unit of the bubble-setting device. The creation of at least one data record and / or the transmission of at least one data record can, in particular, only take place when the fluid-carrying pipeline or the relevant pipeline section has been completely or substantially completely emptied, especially after step a) and / or step b) and / or step c).

[0070] Signing at least one data record can be used to verify the authenticity of the transmitted data record or the sender of the data record on the mobile device and / or the central server. This prevents manipulation of the transmitted data.

[0071] The central computer can comprise one or more processing units. Preferably, the central computer can be configured as a cloud system. This offers the advantage that the data transferred to the central computer can be easily and conveniently accessed and / or analyzed from virtually any device and / or location. The mobile device can be a laptop, a mobile phone, or a different, particularly portable, device. The mobile device can include at least one communication interface, preferably wireless or wired, for establishing at least a temporary communication connection with at least one communication unit of the bladder-setting device and / or a network, preferably the internet, and / or at least one central server.At least one communication interface of the mobile device can be designed in the form of a communication interface as described in relation to the communication unit of the bladder-setting device.

[0072] The mobile device and / or the central server can include at least a temporary or persistent data storage device.

[0073] At least one bladder setting device used in a method according to the invention can be designed as a bladder setting device according to the invention or as a bladder setting device according to one of claims 1 - 10.

[0074] Further advantages, features, and details of the invention will become apparent from the following description, in which several embodiments of the invention are described in detail with reference to the drawings. The features mentioned in the claims and in the description can be essential to the invention individually or in any combination. The invention is illustrated in the following figures. Fig. 1 a schematic view of a bladder setting device according to the invention, Fig. 2 a schematic view of a bladder setting device according to the invention, Fig. 3 a schematic view of a system according to the invention, Fig. 4 a schematic view of a method according to the invention and Fig. 5 a schematic view of a method according to the invention.

[0075] Fig. 1 Figure 1 shows a schematic view of a bladder insertion device 10 according to the invention for at least temporarily blocking and at least partially emptying at least one fluid-carrying pipeline 11. The bladder insertion device 10 comprises two sealing bladders 30. Each of the sealing bladders 30 can be inserted into the fluid-carrying pipeline 11 via an insertion nozzle 31. When the sealing bladder 30 is inserted into the pipeline 11, it is in a relaxed or unfilled state. Such an unfilled sealing bladder 30 is in Fig. 1 The right side of the bladder insertion device 10 in the pipeline 11 is shown. Preferably, the exit direction of a sealing bladder 30 into the pipeline 11 can be controlled, for example, by pre-bending the sealing bladder 30 and / or the pressure line 33 connected to the sealing bladder 30 and / or in fluid communication with it for filling the sealing bladder 30.

[0076] Once a sealing bladder 30 has been inserted into the fluid-carrying pipeline 11, it can be filled with compressed air or another pressurized fluid via the pressure line 33 or the pressure connection 32. As a result, the sealing bladder 30 expands in the pipeline 11 and comes into contact, at least partially, with the inner wall of the fluid-carrying pipeline 11, thereby slowing down or stopping the fluid flow in the pipeline 11. Such a filled sealing bladder 30 is in Fig. 1 shown on the left side of the bladder setting device 10 in the pipeline 11.

[0077] The prevailing main flow direction in the fluid-carrying pipeline 11 without the intervention of a bubble-setting device 10 is in Fig. 1 The arrow in the fluid-carrying pipeline 11 indicates this. Consequently, the section 11.1 of the fluid-carrying pipeline 11 that can be emptied by the bladder insertion device 10 extends downstream from the filled sealing bladder 30 along the main flow direction. The emptied section 11.1 of the fluid-carrying pipeline 11 can be limited on one side by a second bladder insertion device 10 or a fixed pipe closure (spur line). The fluid contained in the fluid-carrying pipeline 11 has a pressure that is significantly higher than that of the surroundings.

[0078] According to Fig. 1 The bladder insertion device 10 has already been placed on the fluid-carrying pipeline 11 or at least partially inserted into a bore in the outer wall of the fluid-carrying pipeline 11, and the fluid flow in the pipeline 11 has been stopped or substantially stopped by the sealing bladder 30. In order to carry out work on pipeline section 11.1, the fluid contained in pipeline section 11.1 must first be removed from the pipeline 11.

[0079] For this purpose, the bladder setting device 10 has a collection container 12 for at least partially collecting 102 a fluid flow F that can be directed out of the fluid-carrying pipeline 11 by the bladder setting device 10. The fluid flow F enters the interior 12.1 of the collection container 12 and can be at least temporarily stored therein. The fluid flow F is in Fig. 1 Indicated by the dotted line. Accordingly, the fluid, in particular natural gas, contained in the fluid-carrying pipeline section 11.1 cannot escape uncontrollably or untreated into the environment if the pipeline section 11.1 is at least partially emptied or the internal pressure in the pipeline section 11.1 is reduced in preparation for maintenance and / or repair work. Rather, the fluid, in particular natural gas, discharged from the pipeline 11 or the pipeline section 11.1 can be collected in the containment tank 12 and subsequently used for further purposes and / or disposed of in a controlled manner. It is also conceivable that the fluid is returned from the containment tank 12 to the pipeline 11 or the pipeline section 11.1 after completion of the work on the pipeline 11.

[0080] The collection container 12 is in Fig. 1 It is only shown schematically and can be significantly larger in its dimensions, at least when filled, than the bladder-setting device.

[0081] Fig. 2 Figure 10 shows a schematic representation of a bubble-setting device 10 according to the invention for at least temporarily blocking and at least partially emptying at least one fluid-carrying pipeline 11 or a fluid-carrying pipeline section 11.1 of the fluid-carrying pipeline 11. The bubble-setting device 10 comprises a gas flare 13 for at least partially burning off 103 a fluid flow F that can be or is being discharged from the fluid-carrying pipeline 11 or the pipeline section 11.1 by the bubble-setting device 10. Thus, the fluid, in particular natural gas, enclosed in the fluid-carrying pipeline section 11.1 cannot escape uncontrollably or untreated into the environment when the relevant pipeline section 11.1 is at least partially emptied or the internal pressure in the pipeline section 11.1 is reduced in preparation for maintenance and / or repair work. Rather, the fluid from the pipeline 11 or the pipeline section 11.1 can be discharged in a controlled manner.The fluid, in particular natural gas, discharged from pipeline section 11.1 is combusted in a controlled manner by the gas flare 13. While this releases combustion products such as CO2 into the atmosphere, it prevents the untreated fluid or natural gas from being released. This significantly reduces the environmental and climate impact compared to releasing the fluid or natural gas untreated into the atmosphere.

[0082] Gas flare 13 is in Fig. 2 It is only shown schematically and its size may vary from the representation in Fig. 2 Deviations may occur. Therefore, the expected quantity of gas to be burned must be taken into account when dimensioning. The position of the gas flare 13 in relation to the bubble-setting device 10 is also only shown schematically. The distance between the gas flare 13 and the bubble-setting device 10 can be significantly greater than shown. Fig. 2 The device is designed as shown. Particular care must be taken to ensure that any leakage streams of fluid, especially natural gas, escaping from the bubble-setting device 10 cannot be accidentally ignited by the burning gas flare 13.

[0083] The bladder insertion devices 10 of the Fig. 1 and 2 The system comprises an exhaust line 22 for conveying a fluid flow F out of the fluid-carrying pipe 11 or the pipe section 11.1. For this purpose, one end of the exhaust line 22 is arranged such that, particularly when the bubble-setting device 10 is arranged on a fluid-carrying pipe 11, it can be brought into fluid communication with the interior of the fluid-carrying pipe 11, so that the fluid carried in the pipe 11 can flow from the pipe 11 into the exhaust line 22. Another end of the exhaust line 22 is positioned with respect to Fig. 1 in fluid communication with the collection container 12 or the interior 12.1 of the collection container 12 and in relation to Fig. 2 in fluid communication with a mixing device 19 or a gas flare 13. Thus, the fluid flow F discharged from the fluid-carrying pipeline 11 or the pipeline section 11.1 can be fed through the exhaust line 22 of the bubble-setting device 10 to the collection container 12 and / or the gas flare 13.

[0084] The in Fig. 1 and 2 The depicted course of the exhaust pipe 22 is merely schematic and can be freely adapted to individual requirements. Particularly with regard to flow measurement in the exhaust pipe 22, it can be advantageous if the exhaust pipe 22 runs vertically, at least in sections, or substantially vertically, and preferably if the flow measurement is carried out in the vertically running section of the exhaust pipe 22.

[0085] The exhaust pipe 22 includes at least one shut-off device 24, wherein a fluid flow F through the exhaust pipe 22 can be interrupted at least sectionally or temporarily by the shut-off device 24. In this way, the discharge of the fluid flow F into the collection container 12 and / or the gas flare 13 can be selectively interrupted or activated. The shut-off devices 24 are designed as ball valves.

[0086] Fig. 1 It can be seen that the bladder setting device 10 comprises a fluid conveying device 20, wherein a negative pressure can be generated in at least one section of the exhaust gas line 22 by the fluid conveying device 20. With regard to a fluid flow F from the fluid-carrying pipeline 11 into the collection container 12, this offers the advantage that a fluid flow F from the fluid-carrying pipeline 11 can continue to be conveyed into the collection container 12, even if the pressure gradient between the collection container 12 and the fluid-carrying pipeline 11 would no longer permit a natural fluid flow F. In this way, a complete or substantially complete emptying of the fluid-carrying pipeline 11 or the relevant pipeline section 11.1 can be reliably ensured.

[0087] The direction of operation of the fluid conveying device 20 is reversible, so that the fluid conveying device 20 can convey a fluid flow F from the fluid-carrying pipeline 11 into the collection container 12, and vice versa. This allows, for example, after maintenance work on the fluid-carrying pipeline 11 has been completed, at least some of the fluid collected in the collection container 12 to be returned to the fluid-carrying pipeline 11.

[0088] Fig. 1 It can further be seen that the bladder setting device 10 comprises at least one securing element 21 for at least temporarily fixing the bladder setting device 10 to the fluid-carrying pipeline 11. The securing element 21 is designed, at least in sections, as a rigid rod element 21.2, with a pipe clamp 21.1 arranged at each end of the rod element 21.2. The rod element 21.2 can be positively and / or force-fit connected to a section of the bladder setting device 10 and a section of the fluid-carrying pipeline 11 via the pipe clamps 21.1 in order to fix the bladder setting device 10 in its position on the fluid-carrying pipeline 11. For the sake of clarity, in Fig. 1 Only one locking element 21 is shown. However, the arrangement of several locking elements 21 can be provided for or is encompassed by the concept of the invention. Preferably, at least two locking elements 21, in particular arranged or arrangable opposite each other, can be included to ensure secure positioning of the bladder-setting device 10.

[0089] Fig. 2 It can be seen that the bubble-setting device 10 comprises a mixing device 19. The mixing device 19 is arranged upstream of the gas flare 13 with respect to the fluid flow F shown and serves to mix the fluid flow F discharged from the fluid-carrying pipeline 11 with at least one other fluid introduced into the mixing device 19. The additional fluid introduced can be oxygen and / or an oxygen-containing fluid mixture, in particular air, and is introduced into the mixing device 19 or the mixing chamber 19.1 of the mixing device 19 via the fluid connection 19.2. The fluid flow F is introduced into the mixing device 19 via the exhaust line 22 or via another fluid connection 19.2 of the mixing device 19, wherein the mixing device 19 or the fluid connection 19.2 of the mixing device 19 is reversibly connected via a screw connection.The gas flare 13 is connected to the exhaust pipe 22 in a force-fit, form-fit, and / or gas-tight manner. A further fluid connection 19.2 connects the gas flare 13 to the mixing device 19, allowing the fluid mixture produced in the mixing chamber 19.1 of the mixing device 19 to be supplied to the gas flare 13. By mixing the fluid stream F with at least one other fluid, in particular oxygen or air, a sufficient oxygen content for stoichiometric or superstoichiometric combustion can be ensured in the fluid stream F supplied to the gas flare 13 for combustion. This prevents incomplete combustion and thus the release of untreated fluid residues into the environment.

[0090] Fig. 2 It can further be seen that the bubble-setting device 10 comprises at least one sensor element 14. In the present case, the bubble-setting device 10 comprises at least three sensor elements 14.1, 14.2, 14.3. The first sensor element 14.1 is configured to detect at least one measured quantity in the exhaust pipe 22 or in the fluid flow F passing through the exhaust pipe 22. In the present case, the first sensor element 14.1 allows for the integrated detection of several measured quantities related to the fluid flow F. It is also conceivable that the measured quantities described below are detected at least partially by separate sensor elements 14 and / or in other areas and / or sections of the exhaust pipe 22.

[0091] The first sensor element 14.1 is designed to detect the flow velocity, volume, and / or volumetric flow rate of the fluid stream F discharged from the fluid-carrying pipeline 11. Furthermore, the first sensor element 14.1 is designed to detect the pressure and temperature of the fluid stream F discharged from the fluid-carrying pipeline 11. Thus, the mass flow rate and mass of the fluid stream F discharged from the fluid-carrying pipeline 11 can be reliably determined by the first sensor element 14.1. The first sensor element 14.1 is also designed to detect a concentration, preferably a natural gas concentration and / or methane concentration, in the fluid stream F discharged from the fluid-carrying pipeline 11. This allows, particularly when a fluid mixture is present in the fluid-carrying pipeline 11 or the fluid-carrying pipeline section 11,1. It can be assessed whether the natural gas or methane content in the fluid stream F discharged through the bubble-setting device 10 is sufficient for ignition and / or stable combustion in the gas flare 13. The required amount of air or oxygen for stoichiometric or superstoichiometric at least partial combustion of the fluid stream F in the gas flare 13 can also be determined.

[0092] The first sensor element 14.1 has a tubular section, wherein the tubular section of the first sensor element 14.1 is connected at a first side to a first part of the exhaust pipe 22, so that the fluid flow F from a first part of the exhaust pipe 22 can flow into the tubular section of the first sensor element 14.1, and wherein the tubular section is connected at a second side to a second part of the exhaust pipe 22, so that the fluid flow F from the tubular section of the second sensor element 14.1 can flow out into the second part of the exhaust pipe 22 and further towards the gas flare 13. The measurement or acquisition of the measured quantities takes place at least partially in the tubular section of the first sensor element 14.1.

[0093] At least the first sensor element 14.1 is designed for time-resolved acquisition and thus allows continuous or quasi-continuous acquisition. From the temporal profile of the acquired volume flow, a cumulative evaluation of at least one measured variable, in particular a volume flow and / or mass flow, of the fluid flow F discharged from the fluid-carrying pipe 11 can be carried out.

[0094] Furthermore, the bubble-setting device 10 includes a second sensor element 14.2 for acquiring at least one piece of positional information regarding the current geographic position of the bubble-setting device 10. The second sensor element 14.2 is integrated into the control unit 15 of the bubble-setting device 10. In this case, the second sensor element 14.2 is configured as a GPS sensor. Thus, the location where combustion gases and / or, if applicable, quantities of an untreated or unburned fluid were released into the atmosphere can be documented via the second sensor element 14.2 and recorded for subsequent analysis.

[0095] Furthermore, the bladder setting device 10 includes a third sensor element 14.3 for detecting a leakage flow escaping from the bladder setting device 10 or a leakage of the fluid flow F discharged from the fluid-carrying pipeline 11 into the surroundings of the bladder setting device 10. The third sensor element 14.3 is designed to detect a gas concentration, in particular natural gas concentration and / or methane concentration, in the ambient air. An uncontrolled escape of the fluid flow F into the immediate vicinity of the bladder setting device 10 can pose an immediate risk to users present and surrounding infrastructure, especially if the fluid flow F is flammable. Therefore, the sensory detection of a leak by the third sensor element 14.3 on the bladder setting device 10 can increase occupational safety.

[0096] With reference to Fig. 2 The bladder setting device 10 further comprises at least one control unit 15, at least one communication unit 16, at least one evaluation unit 17 and at least one alarm unit 18, and at least one display unit 26, wherein the communication unit 16, the evaluation unit 17, the alarm unit 18 and the display unit 26 are integrated into the control unit 15.

[0097] The control unit 15 can be brought into at least temporary signal or communication communication with the communication unit 16, the evaluation unit 17, the alarm unit 18, the sensor elements 14, at least one shut-off device 24, and the mixing device 19, so that these can be at least partially controlled by the control unit 15 and / or exchange data, preferably measurement data and / or sensor data sets. This applies analogously to the in Fig. 1 fluid conveying device shown.

[0098] The communication unit 16 comprises at least one communication interface (not shown) for wireless or wired communication with the control unit 15 and / or a mobile device 25. This allows the sensor data received by the control unit 15 and acquired by the sensor elements 14 to be at least partially transmitted to the mobile device 25 and / or a central server. In this case, at least one communication interface of the communication unit 16 is configured as a mobile communication interface, enabling communication between the communication unit 16 and the mobile device 25 via a mobile network.

[0099] The evaluation unit 17 serves to evaluate at least one sensor data set and / or at least one measured value acquired by a sensor element 14. An evaluation result determined by the evaluation unit 17 can be transmitted from the evaluation unit 17 to the control unit 15. Based on an evaluation result, decisions regarding the operation or adjustment of the operation of the bladder insertion device, particularly in the control unit, can also be made. The evaluation unit 17 can be brought into at least temporary signal communication with the control unit 15, so that a measured value acquired by a sensor element 14 can be communicated by the control unit 15 to the evaluation unit 17, and an evaluation result determined by the evaluation unit 17 can be transmitted from the evaluation unit 17 to the control unit 15 or received by the control unit 15.

[0100] The alarm unit 18 serves to emit acoustic and / or visual warning signals, at least temporarily, and comprises at least one light source (not shown) for emitting visual warning signals and at least one loudspeaker unit (not shown) for emitting acoustic warning signals. The alarm unit 18 can be brought into signal communication with the control unit 15, at least temporarily, so that the control unit 15 can activate and / or deactivate the emission of acoustic and / or visual warning signals by the alarm unit 18.

[0101] The display unit 26 serves to display at least one sensor value or at least one measured value acquired by at least one sensor element 14. This offers the advantage that the measured values ​​acquired by at least one sensor element 14 can be displayed on the display unit 26 for a user of the bladder insertion device 10, thus simplifying or enabling the user to monitor the operation of the bladder insertion device 10. For this purpose, the display unit 26 includes a display (not shown).

[0102] Fig. 3 Figure 1 shows a schematic view of a system 50 according to the invention, comprising at least two bladder placement devices 10, wherein at least one bladder placement device 10 is a bladder placement device 10 according to the invention or is configured according to one of claims 1-10. The present figure is the one shown in Figure 10. Fig. 3 a bubble setting device 10 arranged on the left, a bubble setting device 10 according to the invention with a collection container 12.

[0103] The bladder insertion devices 10 are arranged at various positions along the longitudinal extent of the fluid-carrying pipeline 11, such that a pipeline section 11.1 is delimited by the sealing bladders 30. This pipeline section 11.1 can be at least partially emptied by means of at least one of the bladder insertion devices 10 in the manner already described, or the pressure in the pipeline section 11.1 can be reduced by directing a fluid flow F out of the fluid-carrying pipeline 11 or the relevant section 11.1 through at least one bladder insertion device 10.

[0104] In the present case, the discharged fluid flow F can be collected in the receiving container 12 of the in Fig. 3 The fluid stream F is collected in a bubble-setting device 10 located on the left side. Alternatively or additionally, at least partial combustion 103 of the fluid stream F in a gas flare 13 of a bubble-setting device 10 according to the invention would be conceivable.

[0105] The bladder insertion devices 10 are in Fig. 3 For the sake of clarity, this is a highly simplified representation. The information contained in the Fig. 1 and 2 The embodiments illustrated or the embodiments of bladder-setting devices 10 described within the scope of this invention are equally suitable for the Fig. 3 The depicted bladder-setting devices 10 are conceivable.

[0106] Fig. 4 shows a schematic representation of a method 100 according to the invention, wherein at least the following steps are carried out: a) Directing 101 a fluid flow F from a fluid-carrying pipeline 11 through the bubble setting device and b) at least partially collecting 102 the fluid flow F directed out of the fluid-carrying pipeline 11 in a collection container.

[0107] Fig. 5 shows a schematic representation of a method 100 according to the invention, wherein at least the following steps are carried out: a) Diverting 101 of a fluid flow F from a fluid-carrying pipeline 11 through the bubble setting device and d) at least partially burning 103 of the fluid flow F vented from the fluid-carrying pipeline 11 through a gas flare. Bezugszeichenliste

[0108] 10 Bladder setting device 11 Pipeline 11.1 Pipeline section 12 Collection tank 12.1 Interior 13 Gas flare 14 Sensor element 14.1 First sensor element 14.2 Second sensor element 14.3 Third sensor element 15 Control unit 16 Communication unit 17 Evaluation unit 18 Alarm unit 19 Mixing device 19.1 Mixing chamber 19.2 Fluid connection 20 Fluid conveying device 21 Safety element 21.1 Pipe clamp 21.2 Rod element 22 Exhaust line 24 Shut-off device 25 Mobile device 26 Display unit 30 Shut-off bladder 31 Inlet nozzle 32 Pressure connection 33 Pressure line 50 System 100 Procedure 101 Discharge 102 Collection 103 Burn-off Fluid flow

Claims

1. Bubble setting device (10) for at least temporarily blocking and at least partially emptying at least one fluid-carrying pipe (11) comprising at least one collecting container (12) for at least partially collecting a fluid flow (F) which can be led out of the fluid-carrying pipe (11) by the bubble setting device (10), characterized in that at least one sensor element (14) is included, wherein a volume flow and / or a flow velocity and / or a mass flow of the fluid flow (F) discharged from the fluid-carrying pipe (11) can be detected by the sensor element.

2. Bubble setting device (10) for at least temporarily blocking and at least partially emptying at least one fluid-carrying pipe (11) comprising at least one gas flare (13) for at least partially burning off a fluid flow (F) which can be led out of the fluid-carrying pipe (11) through the bubble setting device (10), characterized in that at least one sensor element (14) is included, wherein a volume flow and / or a flow velocity and / or a mass flow of the fluid flow (F) discharged from the fluid-carrying pipe (11) can be detected by the sensor element.

3. Bubble setting device (10) according to one of the preceding claims, characterized in that at least one sensor element (14) is included, wherein at least one temperature and / or one pressure and / or one density of the fluid flow (F) discharged from the fluid-carrying pipe (11) can be detected, preferably continuously, by the sensor element (14).

4. Bubble setting device (10) according to one of the preceding claims, characterized in that at least one sensor element (14) is included, wherein at least one concentration, preferably a natural gas concentration, in the fluid flow (F) discharged from the fluid-carrying pipe (11) can be detected, preferably continuously, by the sensor element (14), and / or in that at least one sensor element (14) is included, it being possible for at least one item of position information relating to the current geographical position of the bubble setting device (10) to be detected by the sensor element (14).

5. Bubble setting device (10) according to one of the preceding claims, characterized in that at least one sensor element (14) is included, wherein at least one leakage flow emerging from the bubble setting device (10) can be detected by the sensor element (14), and / or at least one control unit (15) for at least partially automated control of the bubble setting device (10) is included.

6. Bubble setting device (10) according to one of the preceding claims, characterized in that at least one communication unit (16) is included, the communication unit (16) having at least one communication interface for wireless or wired communication with at least one mobile device (25) and / or at least one central server and / or at least one sensor element (14) of the bubble setting device (10).

7. Bubble setting device (10) according to one of the preceding claims, characterized in that at least one evaluation unit (17) for evaluating at least one sensor data set is included, and / or at least one alarm unit (18) for at least temporarily emitting acoustic and / or optical warning signals is included.

8. Bubble setting device (10) according to one of the preceding claims, characterized in that at least one mixing device (19) is included for mixing the fluid flow (F) discharged from the fluid-carrying pipe (11) with at least one further fluid (F) introduced into the mixing device (19), and / or at least one fluid conveying device (20) is included for at least partial evacuation of the fluid-carrying pipe (11) and / or for at least partial evacuation of the collecting container (12).

9. Bubble setting device (10) according to one of the preceding claims, characterized in that at least one securing element (21) for at least temporarily fixing the bubble setting device (10) to the fluid-carrying pipe (11) is included.

10. System (50) for at least temporarily blocking and / or at least partially emptying at least one fluid-carrying pipe (11), comprising at least two bubble setting devices (10), wherein at least one bubble setting device (10) is designed according to one of claims 1 - 9.

11. A method (100) for using at least one bubble setting device (10) according to any one of claims 1 or 3-9, if dependent on claim 1, wherein at least the following steps are carried out, preferably in the order indicated: a) conducting (101) a fluid flow (F) out of a fluid-carrying pipe (11) through the bubble setting device (10) and b) at least partial collection (102) of the fluid flow (F) discharged from the fluid-carrying pipe (11) in a collecting container (12), whereby the following step is also performed: • detection of at least one measured value by at least one sensor element (14), wherein the detection of at least one measured value comprises the detection of a volume flow and / or a flow velocity and / or a density of the fluid flow (F) discharged from the fluid-carrying pipe (11) by the sensor element (14).

12. A method (100) for using at least one bubble setting device (10) formed according to any one of claims 2 or 3-9, if dependent on claim 2, wherein at least the following steps are performed, preferably in the order indicated: a) conducting (101) a fluid flow (F) out of a fluid-carrying pipe (11) through the bubble setting device (10) and c) at least partial burning off (103) of the fluid flow (F) discharged from the fluid-carrying pipe (11) by a gas flare (13), whereby the following step is also carried out: • detection of at least one measured value by at least one sensor element (14), wherein the detection of at least one measured value comprises the detection of a volume flow and / or a flow velocity and / or a density of the fluid flow (F) discharged from the fluid-carrying pipe (11) by the sensor element (14).

13. Method (100) according to any one of claims 11 or 12, characterized in that in addition, preferably before or during step a), at least one of the following steps is carried out: • evaluation of at least one measured value detected by at least one sensor element (14), preferably by an evaluation unit (17), • activation and / or deactivation of at least one alarm function as a function of at least one evaluation result, preferably by a control unit (15).

14. Method (100) according to any one of claims 11 to 13, characterized in that in addition, preferably after step a), at least one of the following steps is carried out: • creation of at least one data set comprising at least one fluid information item, in particular by a control unit (15) or communication unit (16), • signing the at least one data set, preferably with a digital signature, • transmitting the at least one data set to a mobile device (25) and / or to a central server, • storing at least one data set on the mobile device (25) and / or the central server.

15. Method (100) according to any one of claims 11 to 14, characterized in that the fluid information contains at least one of the following parameters: • the total mass and / or the total volume of the fluid flow (F) discharged from the fluid-carrying pipe (11), • the geographical position at which the bubble setting device (10) was located during step a).