Device for identifying position of pipe cleaner in pipeline and pipeline system

Abstract

The utility model relates to a device for identifying the position of a pipe cleaner in a pipeline and a pipeline system, the device system comprises a magnet, a signal collector, a signal conductor and a signal output device, the signal collector, the signal conductor and the signal output device are connected with each other, the signal collector comprises two sound diaphragm sensors, and the signal conductor is composed of two wires connected with the two sound diaphragm sensors. The signal output device comprises a listening bulb earcap and a displayer which are connected through a wire, the magnet is detachably installed on a pipeline and forms a magnetic field in the pipeline, and sound signals sent by the pipe cleaner moving in the pipeline and induced current generated when the magnetic field is cut are collected through the two sound diaphragm sensors. Two wires of the signal transduction device transmit collected induction current and sound signals to the auditory bulb earcap of the signal output device and the displayer to output sound signals and display current waveforms respectively, and under the cooperation of the signal collection device, the signal transduction device and the signal output device, the oil and gas pipeline auditory bulb which is more accurate, safer and more efficient is achieved.

Description

Technical Field

[0001] The utility model relates to the field of pigging operations for oil and gas pipelines, and particularly relates to a device and a pipeline system for identifying the position of a pig in a pipeline. Background Art

[0002] The pigging operation of oil and gas pipelines is carried out at regular intervals, mainly to improve the pipeline transportation efficiency and ensure the safety of pipeline transportation. The pigging operation usually uses a pig launcher and receiver and a pig (pigging ball). In the pigging operation, many links need to be manually confirmed and judged to ensure the normal operation of the operation. The judgment in the pig receiving link plays an important role in the safe operation of the pigging operation.

[0003] Currently, in the pig receiving link of the pigging operation, generally, people manually listen at the inlet of the pig receiver to judge the state. This way of listening for the pig is too primitive, with a single method and it is impossible to accurately and comprehensively identify whether the pig has arrived based on a certain signal on site. In addition, there are safety hazards when the human ear is attached to the pipeline. The sound in the operation of the oil and gas pipeline is noisy, and it is impossible to effectively identify the sound of the pig passing through. In addition, most of the installed pipeline pig monitors have high requirements for the material properties of the pig and lack on-site practicability. Therefore, it is necessary to develop a practical and effective device to improve the accuracy of pig identification and avoid attaching the human ear to the pipeline to ensure safety. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the technical problems of poor safety and high identification difficulty caused by directly attaching the human ear to the pipeline to identify the position of the pig in the prior art, and to provide a device and a pipeline system for identifying the position of the pig in the pipeline.

[0005] In a first aspect, the utility model provides a device for identifying the position of a pig in a pipeline, including a magnet and a connected signal collector, signal conductor, and signal outputter. The magnet can be installed on the pipeline and form a magnetic field in the pipeline. When the pig moves in the pipeline and passes through the magnetic field, an induced current can be generated and a sound signal can be emitted; the signal collector is used to collect the induced current and the sound signal; the signal conductor is used to transmit the induced current and the sound signal to the signal outputter for output.

[0006] Compared with the potential safety hazards and inaccurate judgment of the pigging device position that may occur when directly attaching the human ear to the pipeline in the prior art, the listening ball device using the principle of electromagnetic induction in this application can utilize the induction current generated when the pigging device in the pipeline cuts the magnetic induction lines when passing through the magnetic field. The induction current can be acquired by the signal collector and transmitted to the signal output device by the signal conductor. The change situation of the induction current can be displayed on the display device of the signal output device for the operator to accurately judge the specific position of the pigging device. At the same time, it can also comprehensively judge the position of the pigging device by combining the sound signal directly collected by the sensor when the pigging device is in the pipeline. The operator can listen to the sound signal through the listening ball earphone of the signal output device, avoiding safety hazards such as pipeline vibration caused by directly attaching the human ear to the pipeline to listen to the ball. The sound signal output through the listening ball earphone has less noise, higher purity, is more conducive to the operator to judge the position of the pigging device, and has higher recognition accuracy.

[0007] Preferably, the material of the pipeline is a conductor; the signal collector includes two sound diaphragm sensors, and both of the two sound diaphragm sensors are connected to the pipeline.

[0008] Preferably, it further includes a coil, the coil can be connected between the pipeline and the signal collector and placed in the magnetic field, and when the pigging device passes through the magnetic field in the pipeline, the induction current can be generated on the coil.

[0009] Preferably, the signal collector includes two sound diaphragm sensors, and both of the two sound diaphragm sensors are connected to the coil.

[0010] Preferably, the signal collector includes two sound diaphragm sensors, one of the two sound diaphragm sensors is connected to the coil, and the other is connected to the pipeline.

[0011] Preferably, the signal conductor includes two wires respectively connected to the two sound diaphragm sensors.

[0012] Preferably, there are two magnets, and the opposite poles of the two magnets are arranged relatively to generate the magnetic field.

[0013] Preferably, the signal output device includes a listening ball earphone and a display respectively connected to the signal conductor. The listening ball earphone is used to output the sound signal, and the display is used to display the waveform diagram of the induction current.

[0014] In a second aspect, the present utility model provides a pipeline system capable of identifying the position of a pigging device, including the device for identifying the position of the pigging device in the pipeline as described above.

[0015] The device for identifying the position of the pigging tool in the pipeline can be detachably installed on the pipeline. A magnet can be installed at a specified position on the pipeline to generate a magnetic field in the pipeline. When the pigging tool passes through the magnetic field, it can cut the magnetic induction lines to generate an induced current. Using the principle of electromagnetic induction, the signal collector can obtain the induced current and the signal conductor can transmit it to the signal outputter to display the waveform diagram of the induced current. At the same time, it can also comprehensively judge the position of the pigging tool by combining the sound signal directly collected by the sensor, with higher identification accuracy.

[0016] Preferably, it further includes a pig launcher and receiver and the pigging tool, and the pig launcher and receiver are respectively installed at both ends of the pipeline.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The present utility model provides a device for identifying the position of the pigging tool in the pipeline. The pig listening device using the principle of electromagnetic induction can utilize the induced current generated when the pigging tool in the pipeline cuts the magnetic induction lines when passing through the magnetic field. The induced current can be obtained by the signal collector and transmitted by the signal conductor to the signal outputter. The change situation of the induced current can be displayed in the display device of the signal outputter for the operator to accurately judge the specific position of the pigging tool. At the same time, it can also comprehensively judge the position of the pigging tool by combining the sound signal directly collected by the sensor. The operator can listen to the sound signal through the pig listening earphone of the signal outputter, avoiding safety hazards such as pipeline vibration generated by directly attaching the human ear to the pipeline for pig listening. The sound signal output through the pig listening earphone has less noise, higher purity, is more conducive to the operator to judge the position of the pigging tool, and has higher identification accuracy.

[0019] 2. The present utility model provides a pipeline system capable of identifying the position of the pigging tool. The device for identifying the position of the pigging tool in the pipeline can be detachably installed on the pipeline. The signal collector can obtain the induced current using the principle of electromagnetic induction and the signal conductor can transmit it to the signal outputter to display the waveform diagram of the induced current. At the same time, it can also comprehensively judge the position of the pigging tool by combining the sound signal directly collected by the sensor, with higher identification accuracy. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the device for identifying the position of the pigging tool in the pipeline of the present utility model.

[0021] Markings in the figure:

[0022] 1. Pipeline, 2. Coil, 3. Magnet, 4. Wire, 5. Pig listening earphone, 6. Display, 7. Sound diaphragm sensor. Detailed Embodiment

[0023] The present utility model will be further described in detail below in conjunction with specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. Any technology implemented based on the content of the present utility model belongs to the scope of the present utility model.

[0024] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or positional relationship, such as "upper", "lower", "left", "right", "center", "inner", "outer", etc., are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product / device / installation is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0025] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present utility model.

[0026] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be construed as emphasizing or implying the relative importance of a specific component.

[0027] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., or even more than 9.

[0028] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, where the terms "set", "installed", "connected", "linked", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, and threaded connection. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0029] Embodiment 1

[0030] This embodiment provides a device for identifying the position of a pig in a pipeline.

[0031] Figure 1 It is a schematic diagram of the device for identifying the position of a pig in a pipeline of the present utility model.

[0032] As Figure 1 shown, the device for identifying the position of a pig in a pipeline described in this embodiment may include a magnet 3 and a signal collector, a signal conductor, and a signal outputter connected in sequence. Among them, the magnet 3 can be installed on the pipeline 1 and form a magnetic field in the pipeline 1. Specifically, the magnet 3 is detachably installed on the outer wall surface of the pipeline 1. If the material of the pipeline 1 is a material that can be adsorbed by a magnetic material, such as iron, etc., the magnet 3 can be directly adsorbed on the pipeline 1; the pig can move in the pipeline 1 and generate sound signals due to friction and collision with the inner wall of the pipeline. The pig can also generate an induced current when passing through the magnetic field at the corresponding position of the magnet 3 in the pipeline; the signal collector can be used to collect the induced current and the sound signal; the signal conductor can be used to transmit the induced current and the sound signal to the signal outputter, and the signal outputter outputs the induced current and the sound signal.

[0033] Compared with the technical defects of potential safety hazards and inaccurate judgment of the position of the pigging device that may occur when directly attaching the human ear to the pipeline 1 in the prior art, the listening ball device using the principle of electromagnetic induction in this application can utilize the induction current generated by cutting the magnetic induction line when the pigging device in the pipeline 1 passes through the magnetic field at the corresponding position of the magnet 3 in the pipeline. The induction current can be acquired by the signal collector and transmitted to the signal output device through the signal conductor. The change situation of the induction current can be displayed on the display device of the signal output device for the operator to accurately judge the specific position of the pigging device. At the same time, it can also comprehensively judge the position of the pigging device by combining the sound signal directly collected by the sensor. The operator can listen to the sound signal through the listening ball earphone 5 of the signal output device, avoiding safety hazards such as the vibration of the pipeline 1 caused by directly attaching the human ear to the pipeline 1 for listening to the ball. The sound signal output through the listening ball earphone 5 has less noise, higher purity, is more conducive to the operator to judge the position of the pigging device, and has higher recognition accuracy.

[0034] Here, common pigging device models are 114, 168, 219, 273, 323 mm, etc., representing the diameter size of the pigging device.

[0035] In this embodiment, the material of the pipeline 1 can be a conductor; the signal collector can include two sound diaphragm sensors 7, and both of the two sound diaphragm sensors 7 can be connected to the pipeline 1.

[0036] Specifically, when the material of the pipeline 1 is a conductor, both of the two sound diaphragm sensors 7 can be directly connected to the pipeline 1. At this time, there is no need to install the coil 2 on the pipeline 1. The induction current generated by cutting the magnetic induction line when the pigging device passes through the magnetic field at the corresponding position of the magnet 3 in the pipeline can be directly conducted to the two sound diaphragm sensors 7 through the pipe wall of the pipeline 1, so that both of the two sound diaphragm sensors 7 can acquire the induction current signal and then be transmitted through the signal conductor.

[0037] In this embodiment, the device for identifying the position of the pigging device in the pipeline may further include a coil 2. The coil 2 can be connected between the pipeline 1 and the signal collector and placed in the magnetic field, and an induction current can be generated on the coil 2.

[0038] Specifically, regardless of whether the material of the pipeline 1 is a conductor, the coil 2 can be installed on the pipeline 1, and then the signal collector can be installed on the coil 2. Specifically, the coil 2 can be wound around the pipeline 1, and the signal collector can be attached to the coil 2. When the pigging device passes through the magnetic field at the corresponding position of the magnet 3 in the pipeline, cutting the magnetic induction line, an induction current can be generated on the coil 2, and then conducted to the signal collector by the coil 2. The signal collector acquires the induction current signal and then transmits it through the signal conductor.

[0039] Optionally, the signal collector may include two sound diaphragm sensors 7, one of the sound diaphragm sensors 7 may be connected to the coil 2, and the other may be connected to the pipeline 1.

[0040] Specifically, when the coil 2 is installed on the pipeline 1, one of the two sound diaphragm sensors 7 can be installed on the coil 2, and the other can be installed on the pipeline 1. The induced current and the sound signal can both be obtained through the sound diaphragm sensor 7 connected to the coil 2, while the other sound diaphragm sensor 7 installed on the pipeline 1 can obtain the sound signal emitted by the pipeline 1 at the corresponding position of the pig passing through the pipeline and the magnet 3. If the material of the pipeline 1 is a conductor, the other sound diaphragm sensor 7 installed on the pipeline 1 can also obtain the induced current signal. If the material of the pipeline 1 is a non-conductor, the other sound diaphragm sensor 7 installed on the pipeline 1 cannot obtain the induced current signal.

[0041] Optionally, the signal collector may include two sound diaphragm sensors 7, and both of the two sound diaphragm sensors 7 can be connected to the coil 2.

[0042] Specifically, when the coil 2 is installed on the pipeline 1, both of the two sound diaphragm sensors 7 can be installed on the coil 2, and the induced current and the sound signal can be obtained simultaneously through the two sound diaphragm sensors 7 connected to the coil 2. That is to say, the two sound diaphragm sensors 7 connected to the coil 2 can simultaneously obtain the induced current generated by cutting the magnetic induction line when the pig in the pipeline 1 passes through the magnetic field at the corresponding position of the magnet 3 and the sound signal emitted by the pig moving in the pipeline 1.

[0043] It should be noted that the above-mentioned sound diaphragm sensor 7 can also be replaced by other types of sensors or other devices that can achieve the same type of signal collection, and the present utility model does not make specific limitations on this.

[0044] In this embodiment, the signal conductor includes two wires 4 respectively connected to the two sound diaphragm sensors 7.

[0045] After the two sound diaphragm sensors 7 are attached to the pipeline 1 or the coil 2, the two wires 4 can be respectively connected to the two sound diaphragm sensors 7. After the two sound diaphragm sensors 7 obtain the induced current and the sound signal, the obtained induced current signal and sound signal can be transmitted to the two wires 4 and transmitted through the two wires 4, and finally the induced current signal and the sound signal are transmitted to the signal output device. However, the present utility model is not limited to this, and the signal conductor can also be other forms of components, and the present utility model does not make specific limitations on this.

[0046] In this embodiment, the device for identifying the position of the pig in the pipeline may further include two magnets 3 that can be respectively installed on both sides of the pipeline 1, and the opposite poles of the two magnets 3 are arranged opposite to each other to generate a magnetic field.

[0047] Specifically, the magnets 3 can be respectively installed on opposite sides of the pipeline 1. When installing, the opposite poles of the two magnets 3 can be arranged opposite to each other. For example, the N pole of the magnet 3 on one side can be adsorbed on the pipeline 1, and the S pole of the magnet 3 on the other side can be adsorbed on the pipeline 1, or the S pole of the magnet 3 on one side can be adsorbed on the pipeline 1, and the N pole of the magnet 3 on the other side can be adsorbed on the pipeline 1, so that the magnetic field can be completely formed in the inner cavity of the pipeline 1. That is to say, the magnetic induction lines can extend from the magnet 3 on one side to the magnet 3 on the other side, and the magnetic field can also completely cover the inner cavity of the pipeline 1 along the radial direction of the pipeline 1 or within a certain range. When the pig passes through the magnetic field corresponding to the magnet 3 in the pipeline 1, the effect of cutting the magnetic induction lines to generate electromagnetic induction will be obvious, and the generated induced current will also be more significant, making it easier to be acquired by the collector and easier to be recognized by the operator.

[0048] In this embodiment, the signal output device may include a stethoscope earpiece 5 and a display 6 that are respectively connected to the signal conductor. The stethoscope earpiece 5 can be used to output sound signals, and the display 6 can be used to display the waveform diagram of the induced current.

[0049] Specifically, the stethoscope earpiece 5 and the display 6 can be respectively connected to two sound diaphragm sensors 7 through two wires 4. The operator can wear the stethoscope earpiece 5 on the head to listen to the sound signals emitted by the pig moving in the pipeline 1, which can avoid potential safety hazards such as the vibration of the pipeline 1 when directly putting the human ear on the pipeline 1. The sound signals output by the stethoscope earpiece 5 have less noise, higher purity, are more conducive to the operator to judge the position of the pig, and have higher recognition accuracy; the operator can also judge the specific position of the pig in the pipeline 1 through the waveform diagram of the induced current displayed on the display 6, and can also judge the moving direction and moving speed of the pig in the pipeline 1 through the change of the waveform diagram. Compared with directly using the human ear to identify, the induced current signal displayed and output by the display 6 can be visually observed to identify the position of the pig.

[0050] Embodiment 2

[0051] This embodiment provides a pipeline system that can identify the position of the pig.

[0052] The pipeline system that can identify the position of the pig described in this embodiment may include the device for identifying the position of the pig in the pipeline as described in Embodiment 1.

[0053] Such as Figure 1As shown, the device for identifying the position of the pig in the pipeline can be detachably installed on the pipeline 1. A magnet 3 can be installed at a specified position on the pipeline 1 to generate a magnetic field in the pipeline 1. When the pig passes through the magnetic field at the corresponding position of the magnet 3 in the pipeline, it can cut the magnetic induction lines to generate an induced current. Using the principle of electromagnetic induction, the signal collector can obtain the induced current and the signal conductor can transmit it to the signal outputter to display the waveform diagram of the induced current. At the same time, it can also comprehensively judge the position of the pig by combining the sound signal directly collected by the sensor when the pig is in the pipeline 1, with higher identification accuracy.

[0054] Optionally, the pipeline system capable of identifying the position of the pig described in this embodiment may further include a pig launcher and a pig receiver, and the pig launcher and the pig receiver can be respectively installed at both ends of the pipeline 1.

[0055] Usually during pigging operations, the pig launcher and the pig receiver can be installed at both ends of the pipeline 1. The pig is sent out through the pig launcher. When the pig moves along the pipeline 1 to the other end, the pig can be recovered by the pig receiver. The device for identifying the position of the pig in the pipeline described in this embodiment is usually also installed near the pig receiver on the pipeline 1, so as to judge when the pig will arrive at the position of the pig receiver for recovery operations.

[0056] The structure and function of the device for identifying the position of the pig in the pipeline described in this embodiment are the same as those of the device for identifying the position of the pig in the pipeline described in Embodiment 1, and this embodiment will not be specifically described herein.

[0057] In summary, the device for identifying the position of the pig in the pipeline of the present invention can utilize the principle of electromagnetic induction. When the pig in the pipeline passes through the magnetic field, it cuts the magnetic induction lines to generate an induced current. The induced current can be obtained by the signal collector and transmitted by the signal conductor to the signal outputter. The change situation of the induced current can be displayed on the display device of the signal outputter for the operator to accurately judge the specific position of the pig. At the same time, it can also comprehensively judge the position of the pig by combining the sound signal directly collected by the sensor when the pig is in the pipeline. The operator can listen to the sound signal through the listening earphone of the signal outputter, avoiding safety hazards such as pipeline vibration caused by directly putting the human ear on the pipeline to listen for the pig. The sound signal output through the listening earphone has less noise, higher purity, and is more conducive to the operator to judge the position of the pig, with higher identification accuracy; the device for identifying the position of the pig in the pipeline of the present invention can be detachably installed on the pipeline system capable of identifying the position of the pig. It can utilize the principle of electromagnetic induction to enable the signal collector to obtain the induced current and the signal conductor to transmit it to the signal outputter to display the waveform diagram of the induced current. At the same time, it can also comprehensively judge the position of the pig by combining the sound signal directly collected by the sensor when the pig is in the pipeline, with higher identification accuracy.

[0058] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for identifying the position of a pig in a pipeline, characterized in that, It includes a magnet (3) and connected signal collector, signal conductor and signal outputter. Among them, the magnet (3) can be installed on the pipeline (1) and form a magnetic field in the pipeline (1). When the pig moves in the pipeline (1) and passes through the magnetic field, an induced current can be generated and a sound signal can be emitted; the signal collector is used to collect the induced current and the sound signal; the signal conductor is used to transmit the induced current and the sound signal to the signal outputter for output.

2. The device for identifying the position of the pig in the pipeline according to claim 1, characterized in that, The material of the pipeline (1) is a conductor; the signal collector includes two sound diaphragm sensors (7), and both of the two sound diaphragm sensors (7) are connected to the pipeline (1).

3. The device for identifying the position of a pig in a pipeline according to claim 1, characterized in that, It further includes a coil (2), the coil (2) can be connected between the pipeline (1) and the signal collector and placed in the magnetic field. When the pig passes through the magnetic field in the pipeline, the induced current can be generated on the coil (2).

4. The device for identifying the position of the pig in the pipeline according to claim 3, characterized in that, The signal collector includes two sound diaphragm sensors (7), and both of the two sound diaphragm sensors (7) are connected to the coil (2).

5. The device for identifying the position of a pig in a pipeline according to claim 3, characterized in that, The signal collector includes two sound diaphragm sensors (7), one of the sound diaphragm sensors (7) is connected to the coil (2), and the other is connected to the pipeline (1).

6. The device for identifying the position of a pig in a pipeline according to claim 2, 4 or 5, characterized in that, The signal conductor includes two wires (4) respectively connected to the two sound diaphragm sensors (7).

7. The device for identifying the position of a pig in a pipeline according to claim 1, characterized in that, There are two magnets (3), and the opposite poles of the two magnets (3) are arranged opposite to each other to generate the magnetic field.

8. The device for identifying the position of a pig in a pipeline according to any one of claims 1 to 5 and 7, characterized in that, The signal outputter includes a stethoscope earplug (5) and a display (6) respectively connected to the signal conductor. The stethoscope earplug (5) is used to output the sound signal, and the display (6) is used to display the waveform diagram of the induced current.

9. A pipeline system for identifying the position of a pig in a pipeline, characterized in that, It includes the device for identifying the position of the pig in the pipeline according to any one of claims 1 to 8.

10. The pipeline system for identifying the position of a pig in a pipeline according to claim 9, characterized in that, It further includes a pig launcher and receiver and the pig, and the pig launcher and receiver are respectively installed at both ends of the pipeline (1).

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