Pipeline cleaning system

Abstract

The invention discloses a pipeline cleaning system, relates to the technical field of crude oil transportation equipment, and aims to solve the problem that normal transportation of crude oil in a pipeline is affected due to the fact that a worker cannot know the deformation condition of the pipeline. Comprising a pipe cleaner, a differential pressure sensor and a processor. The pipe cleaner is used for moving in the pipeline to remove impurities in the pipeline. The differential pressure sensor is arranged on the pipe cleaner, and in the process that the pipe cleaner moves in the pipeline, the differential pressure sensor is used for detecting the pressure difference of a medium in the pipeline on the front side and the rear side of the pipe cleaner. The processor is connected with the differential pressure sensor and is configured to receive the pressure difference detected by the differential pressure sensor. And if the number of times of great change of the pressure difference at the same position of the pipeline is larger than or equal to the first preset number of times, it is judged that the position of the pipeline deforms. Wherein the great change of the pressure difference means that the increased or decreased value of the value of the pressure difference within the first preset time is greater than or equal to the first preset value.

Description

Technical Field

[0001] The present application relates to the technical field of crude oil transportation equipment, and in particular to a pipeline cleaning system. Background Art

[0002] Freshly mined crude oil will be transported through pipelines after processing. In order to ensure the normal transportation of crude oil, relevant technologies usually lay pipelines underground to prevent the pipelines from being interfered with and damaged by external factors.

[0003] However, when the pipeline is deformed, it may block the crude oil and affect the normal transportation of crude oil. However, since the pipeline is laid underground, the staff cannot know the deformation of the pipeline, which affects the staff's judgment on the crude oil transportation work and further affects the normal transportation of crude oil in the pipeline. Summary of the Invention

[0004] The purpose of this application is to provide a pipe cleaning device, which aims to solve the problem that workers are unable to know the deformation of the pipeline, affecting the normal transportation of crude oil in the pipeline.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] The present application provides a pipeline cleaning system, including a pipeline pig, a pressure differential sensor, and a processor. The pipeline pig is used to move within the pipeline to remove impurities within the pipeline. The pressure differential sensor is provided on the pipeline pig. During the movement of the pipeline pig within the pipeline, the pressure differential sensor is used to detect the pressure difference between the medium in the pipeline and the front and rear sides of the pipeline pig. The processor is connected to the pressure differential sensor and is configured to:

[0007] Receives the pressure difference detected by the differential pressure sensor.

[0008] If the number of significant changes in pressure difference at the same location of the pipeline is greater than or equal to a first preset number, then deformation is determined to have occurred at that location of the pipeline. A significant change in pressure difference means that the pressure difference value increases or decreases by a value greater than or equal to a first preset value within a first preset time.

[0009] With the above arrangement, when the pig moves to a certain position in the pipeline during the first cleaning process, the pressure difference between the front and rear sides of the pig increases or decreases significantly, indicating that the resistance encountered by the pig at this location increases or decreases significantly, that is, there are impurities at this location in the pipeline or the pipe wall is deformed at this location.

[0010] If the number of significant changes in the pressure difference at the same position of the pipeline is greater than or equal to a first preset number, that is, the resistance encountered by the pipe cleaner when moving to this position during the subsequent pipeline cleaning process is small, then it means that there is deformation in the pipeline at this position, and the pipe wall of the pipeline is concave inward or convex outward, causing the inner diameter of the pipeline at this position to become smaller or larger.

[0011] Specifically, taking the example that a pipe cleaner can normally remove impurities at the same location by passing it three times, the pipe cleaner passes the same location greater than or equal to four times (exceeding the normal number), for example, 4 times, 5 times, 6 times, etc. (that is, the first preset number of times can be 4 times, 5 times, 6 times, etc.), but the pressure difference of the pipe cleaner still changes significantly when moving to that location, then it means that the significant change in pressure difference here is not caused by impurities, but by pipeline deformation.

[0012] In this way, the pressure difference between the front and rear sides of the pipe cleaner can be detected by the pressure differential sensor to determine whether the pipeline has been deformed. This allows the staff to clean or maintain the pipeline according to the specific situation in subsequent work to ensure the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0013] In some embodiments, the processor is further configured to:

[0014] If the number of times the pressure difference at the same position of the pipeline changes significantly is greater than or equal to 1 and less than a first preset number, it is determined that impurities are likely to accumulate at the position of the pipeline, where the first preset number is greater than 1.

[0015] In some embodiments, the pipeline cleaning system further includes a pressure sensor, which is provided on the pipe cleaner. During the movement of the pipe cleaner in the pipeline, the pressure sensor is used to detect the pressure of the medium in the pipeline. The processor is connected to the pressure sensor and is also configured to receive the pressure detected by the pressure sensor. If the number of times the pressure difference at the same position of the pipeline changes significantly is greater than or equal to a first preset number, and the number of times the pressure changes significantly is greater than or equal to a second preset number, it is determined that deformation has occurred at that position of the pipeline. The significant change in pressure refers to the value of the pressure increasing or decreasing by a value greater than or equal to the second preset value within the second preset time.

[0016] In some embodiments, the pipeline cleaning system further includes a temperature sensor disposed on the pipeline pig, the temperature sensor being configured to detect the temperature of a medium within the pipeline. A processor, connected to the temperature sensor, is configured to receive the temperature detected by the temperature sensor. If the temperature of the medium at a certain location in the pipeline is less than or equal to a preset temperature, the processor determines that the insulation layer at that location in the pipeline is broken.

[0017] In some embodiments, the pipe cleaning apparatus includes a support tube. The pipeline cleaning system further includes a posture sensor disposed on the pipe cleaning apparatus and configured to detect the angular velocity of the support tube rotating about its axis relative to the pipeline. The processor is connected to the posture sensor and is further configured to receive the angular velocity detected by the posture sensor. If, at the same location in the pipeline, the angular velocity is less than or equal to a preset angular velocity, and the number of significant changes in pressure differential occurs greater than or equal to a first preset number, then deformation is determined to have occurred at that location in the pipeline.

[0018] In some embodiments, the pipeline cleaning system further includes a memory electrically connected to the pressure differential sensor and configured to store the pressure difference detected by the pressure differential sensor.

[0019] In some embodiments, the pipe cleaning device includes a support pipe and a cleaning member, the cleaning member surrounding the support pipe and used to remove impurities in the pipe. The pipe cleaning system also includes a pressure sensor and a temperature sensor, the pressure sensor, the temperature sensor and the pressure differential sensor are all arranged in the support pipe.

[0020] In some embodiments, along the radial direction of the support tube, the temperature sensor and the pressure sensor are located on the same side of the differential pressure sensor, and along the axial direction of the support tube, the temperature sensor and the pressure sensor are arranged sequentially.

[0021] In some embodiments, the pipe cleaning device further includes a box body, which is disposed in the supporting pipe, and the pressure sensor, the temperature sensor and the pressure difference sensor are all disposed in the box body.

[0022] In some embodiments, the pipeline cleaning system further includes a circuit board having a memory disposed thereon. The pressure sensor, the differential pressure sensor, and the temperature sensor are all connected to the memory to store the pressure detected by the pressure sensor, the pressure difference detected by the differential pressure sensor, and the temperature detected by the temperature sensor in the memory. And / or, the pipeline cleaning system further includes a circuit board. The thickness direction of the circuit board is perpendicular to the axial direction of the support tube. The pressure sensor, the differential pressure sensor, and the temperature sensor are all located on one side of the circuit board in the thickness direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 A schematic diagram of the internal structure of a pipeline cleaning system provided in an embodiment of the present application;

[0025] Figure 2 for Figure 1 Schematic diagram of the internal structure of the middle box.

[0026] Figure numerals: 100, pipe cleaner; 1, box body; 11, mounting hole; 12, connecting flange; 15, first side wall; 16, second side wall; 2, pressure sensor; 21, third detection end; 22, second body; 3, differential pressure sensor; 31, first body; 32, first detection end; 33, second detection end; 4, temperature sensor; 41, fourth detection end; 42, third body; 5, circuit board; 20, pipe cleaner body; 201, cleaning piece; 202, support tube; 30, tracker. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or relative positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned directionality descriptions may be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are met.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be directly connected, indirectly connected through an intermediary, or internally connected between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, article, or device comprising the element.

[0032] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0033] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0034] This application provides a pipeline cleaning system, such as Figure 1 、 Figure 2 As shown, Figure 1 This is a schematic diagram of the internal structure of the pipeline cleaning system provided in an embodiment of the present application. Figure 2 for Figure 1 Schematic diagram of the internal structure of the middle housing 1. The pipeline cleaning system includes a pipe pig 100, which is used to clean impurities from the pipeline. The pipeline can be a crude oil pipeline or a natural gas pipeline. This application uses the pipe pig 100 to clean impurities from the crude oil pipeline as an example.

[0035] Specifically, the pig 100 is placed in a pipeline (e.g., a crude oil pipeline), and the pig 100 is in sealed contact with the inner wall of the pipeline. As crude oil is continuously extracted, the crude oil will be input into the pipeline after processing (e.g., dehydration, desalination, etc.) and transported through the pipeline. As the processed crude oil continues to enter the pipeline, the pressure of the medium on one side of the pig 100 (i.e., the rear side of the pig 100 when it moves) will gradually increase. When the pressure difference between the two sides of the pig 100 is sufficient to drive the pig 100 to move, the pig 100 will move under the push of the medium.

[0036] The pipeline pig 100 has a first end and a second end opposite to each other. When the pipeline pig 100 moves in the pipeline, the first end is located ahead of the second end.

[0037] The pig 100 includes a support pipe 202 and a housing 1. The housing 1 is connected to the support pipe 202.

[0038] The axial direction of the support pipe 202 and the moving direction of the pig 100 ( Figure 1 The box body 1 is connected to the support tube 202 and blocks an opening at one end of the support tube 202.

[0039] The pipe cleaning device 100 further includes a cleaning member 201. The cleaning member 201 surrounds the support pipe 202 and is used to clean impurities in the pipeline.

[0040] Specifically, when the pig 100 moves in the pipeline, the cleaning member 201 can seal the gap between the support pipe 202 and the pipeline.

[0041] Exemplarily, the number of the cleaning elements 201 may be one or more, such as two, three, four, etc.

[0042] For example, the cross-section of the support tube 202 may be in a circular, triangular, or square shape.

[0043] With the above arrangement, when the pipe pig 100 moves in the pipeline, since the housing 1 blocks the opening at one end of the support tube 202, the cleaning member 201 can seal the gap between the support tube 202 and the pipeline. Therefore, the pipe pig 100 can block the pipeline, thereby enabling the pipe pig 100 to move under the action of the pressure difference between the media on the front and rear sides.

[0044] In this way, as the pig 100 moves in the pipeline, the cleaning member 201 contacts the pipeline and can remove impurities attached to the pipeline (for example, when the pig 100 moves in a crude oil pipeline, it can remove wax and other impurities attached to the pipeline; when the pig 100 moves in a natural gas pipeline, it can remove impurities such as accumulated water and oil in the pipeline), thereby realizing the cleaning function of the pig 100 on the pipeline.

[0045] Exemplarily, the clearing member 201 may be an abutment plate, an abutment block, or the like.

[0046] Exemplarily, the material of the cleaning member 201 can be rubber, silicone, or the like. This creates an interference fit between the cleaning member 201 and the pipeline, thereby increasing the pressure between the cleaning member 201 and the pipeline. This improves the cleaning member's sealing effect on the gap between the support member and the pipeline and its effectiveness in removing impurities from the pipeline. Furthermore, the cleaning member 201 made of rubber, silicone, or the like can prevent damage to the pipeline, thereby extending the pipeline's service life.

[0047] In some examples, such as Figure 1 、 Figure 2As shown, along the axial direction of the support tube 202 , the box body 1 is located at the first end of the support tube 202 and partially extends out of the support tube 202 . The box body 1 is provided with a connecting flange 12 , which is connected to the end surface of the first end of the support tube 202 .

[0048] In some embodiments, as Figure 1 、 Figure 2 As shown, the pipeline cleaning system further includes a differential pressure sensor 3 and a processor.

[0049] The differential pressure sensor 3 is provided on the pig 100 . When the pig 100 moves in the pipeline, the differential pressure sensor 3 is used to detect the pressure difference of the medium in the pipeline at the front and rear sides of the pig 100 .

[0050] The processor is connected to the pressure difference sensor 3 and is configured to:

[0051] The pressure difference detected by the pressure difference sensor 3 is received.

[0052] If the number of significant changes in pressure difference at the same location of the pipeline is greater than or equal to a first preset number, then deformation is determined to have occurred at that location of the pipeline. A significant change in pressure difference means that the pressure difference value increases or decreases by a value greater than or equal to a first preset value within a first preset time.

[0053] It should be noted that the first preset time refers to the time required for the pig 100 to move a certain distance. For example, if the pig 100 takes 0.1 seconds to move 0.1 meters, the first preset time can be set to 0.1 seconds to determine the increase or decrease in the pressure difference during the 0.1-meter movement of the pipeline. The magnitude of the increase or decrease in the pressure difference during the first preset time can be used to determine the rate of increase or decrease in the pressure difference during the pig's movement. If the pressure difference increases too quickly, it indicates an abnormality in that part of the pipeline.

[0054] The first preset value refers to the value at which the pressure difference between the front and rear sides of the pipe pig 100 exceeds the normal fluctuation range (for example, 0-0.05MPa) during the movement. The first preset value is greater than the pressure difference between the front and rear sides when the pipe pig 100 moves normally at the same position. When the pressure difference between the front and rear sides of the pipe pig 100 is greater than the first preset value, it means that the pressure difference changes greatly when the pipe pig 100 moves to this position, exceeding the normal fluctuation range of the pressure difference, thereby determining that impurities are accumulated at this location or the pipe wall is deformed.

[0055] With the above arrangement, when the pipe pig 100 moves to a certain position in the pipeline during the first pipeline cleaning process, the pressure difference between the front and rear sides of the pipe pig 100 increases or decreases significantly, indicating that the resistance encountered by the pipe pig 100 at this location increases or decreases significantly, that is, there are impurities at this location in the pipeline or the pipe wall is deformed at this location.

[0056] If the number of significant changes in the pressure difference at the same position of the pipeline is greater than or equal to the first preset number, that is, the resistance encountered by the pipe cleaning device 100 when moving to this position in the subsequent pipeline cleaning process still increases or decreases significantly, it indicates that there is deformation in the pipeline at this position, and the pipe wall of the pipeline is concave inward or convex outward, causing the inner diameter of the pipeline at this position to become smaller or larger.

[0057] Specifically, taking the example that the pipe cleaner 100 can normally remove impurities at the same location by passing through it three times, the pipe cleaner 100 passes the same location greater than or equal to four times (exceeding the normal number), for example, four times, five times, six times, etc. (that is, the first preset number can be four times, five times, six times, etc.), but the pressure difference of the pipe cleaner 100 still changes significantly when moving to that location, then it means that the significant change in pressure difference here is not caused by impurities, but by pipeline deformation.

[0058] In this way, the pressure difference between the front and rear sides of the pipe cleaner 100 can be detected by the pressure differential sensor 3 to determine whether the pipeline is deformed. This enables the staff to clean or maintain the pipeline according to the specific situation in subsequent work to ensure the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0059] It can be understood that in the above case, if the pressure difference at the same position of the pipeline increases significantly, it means that the pipe wall of the pipeline is concave inward, and if the pressure difference at the same position of the pipeline decreases significantly, it means that the pipe wall of the pipeline is convex outward.

[0060] In some embodiments, the processor is further configured to:

[0061] If the number of times the pressure difference at the same position of the pipeline changes significantly is greater than or equal to 1 and less than a first preset number, it is determined that impurities are likely to accumulate at the position of the pipeline, where the first preset number is greater than 1.

[0062] Through the above arrangement, when the number of significant changes in the pressure difference at the same position in the pipeline is greater than or equal to 1, it indicates that the pressure difference between the front and rear sides of the pig 100 significantly increases or decreases when the pig 100 moves to the same position in the pipeline during the first pipeline cleaning process. This indicates that the resistance encountered by the pig 100 at this location significantly increases or decreases, that is, there are impurities at this location in the pipeline or the pipe wall is deformed at this location.

[0063] When the number of significant changes in the pressure difference at the same position of the pipeline is less than the first preset number, it indicates that the resistance encountered by the pipeline pig 100 when moving to the position in the subsequent pipeline cleaning process is gradually decreasing, and impurities exist at the position of the pipeline and are gradually being removed.

[0064] Specifically, taking the example that the pipe cleaner 100 can remove impurities at the same location three times under normal circumstances, the number of times the pipe cleaner 100 passes through the same location is less than 4 times (that is, it meets the normal number of times), for example, 1 time, 2 times, or 3 times, and the pressure difference of the pipe cleaner 100 will no longer change significantly when it moves to this location, indicating that the pressure difference here has changed significantly due to impurities. As the number of times the pipe cleaner 100 cleans impurities increases, the impurities will gradually decrease, and the pressure difference change will also gradually decrease. After 1, 2 or 3 times, the pressure difference will return to the normal range (that is, the value of the pressure difference that increases or decreases within the first preset time is less than the first preset value), indicating that the impurities have been cleaned up at this time.

[0065] In this way, the distribution position of impurities in the pipeline can be determined by detecting the pressure difference between the front and rear sides of the pipe cleaner 100 through the pressure differential sensor, which makes it convenient for the staff to clean or maintain the pipeline according to the specific situation in subsequent work, so as to further ensure the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0066] It should be noted that in the process of cleaning impurities in the pipeline, the more times the pressure difference at the same position of the pipeline changes significantly, the more difficult it is to clean the impurities at that location, and the pipe cleaner needs to work more times to complete the cleaning of the impurities at that location.

[0067] In some embodiments, as Figure 1 、 Figure 2 As shown, the pipeline cleaning system further includes a pressure sensor 2, which is provided on the pipeline pig 100. When the pipeline pig 100 moves in the pipeline, the pressure sensor 2 is used to detect the pressure of the medium in the pipeline.

[0068] The processor is connected to the pressure sensor 2 and is further configured to receive the pressure detected by the pressure sensor 2 .

[0069] If the number of significant changes in pressure differential at the same location in the pipeline is greater than or equal to a first preset number, and the number of significant changes in pressure is greater than or equal to a second preset number, deformation is determined to have occurred at that location in the pipeline. A significant change in pressure means that the pressure value increases or decreases by a value greater than or equal to the second preset value within the second preset time.

[0070] The second preset time refers to the time required for the pig 100 to move a certain distance. For example, if the pig 100 takes 0.1 seconds to move 0.1 meters, the second preset time can be set to 0.1 seconds to determine the amount of pressure increase or decrease during the 0.1-meter movement of the pipeline. The magnitude of the pressure increase or decrease during the first preset time can be used to determine the rate of pressure increase or decrease as the pig moves a certain distance. If the pressure increases too quickly, it indicates an abnormality in that part of the pipeline.

[0071] The second preset value refers to the value at which the pressure of the medium in the pipeline exceeds the normal fluctuation range (for example, 1.6MPa-12MPa) during the movement of the pipe pig 100. The second preset value is greater than the pressure of the medium when the pipe pig 100 moves normally at the same position. When the pressure is greater than the first preset value, it means that the pressure change is large when the pipe pig 100 moves to this position, which exceeds the normal fluctuation range of the pressure of the medium in the pipeline, thereby determining that impurities are accumulated at this location or the pipe wall is deformed.

[0072] It should be noted that the medium flows in the pipeline from the high-pressure side to the low-pressure side. Therefore, as the flow distance of the medium increases, the pressure of the medium in the pipeline will gradually decrease.

[0073] It should be noted that when the pressure of the medium in the pipeline detected by the pressure sensor 2 increases or decreases significantly, it means that the medium is accumulated at that location in the pipeline or the pipe wall is deformed, resulting in a change in the cross-sectional area of ​​the medium flowing in the pipeline, thereby causing the pressure of the medium at that location to change.

[0074] Through the above arrangement, on the basis that the number of significant changes in the pressure difference at the same position of the pipeline is greater than or equal to the first preset number, if the pressure sensor 2 detects that the number of significant changes in the pressure of the medium in the pipeline is greater than or equal to the second preset number, it indicates that deformation has occurred at that position of the pipeline.

[0075] Specifically, taking the example that the pipe cleaning device 100 can normally remove impurities at the same location by passing through it three times, if the pipe cleaning device 100 passes through the same location four times or more (exceeding the normal number), for example, four times, five times, six times, etc. (i.e., the second preset number of times can be four times, five times, six times, etc.), but the pressure of the medium at that location still changes significantly, it means that the significant pressure change is not caused by impurities, but by pipeline deformation.

[0076] In this way, compared to judging whether the pipeline is deformed only by the differential pressure sensor 3, by cooperating with the differential pressure sensor 3 and the pressure sensor 2 to jointly judge whether the pipeline is deformed, it is possible to avoid errors in the data of the differential pressure sensor 3 and the judgment results, thereby improving the accuracy of judging whether the pipeline is deformed, so that the staff can more accurately understand whether the pipeline is deformed, so as to ensure the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0077] In some embodiments, if the number of significant changes in pressure difference at the same position of the pipeline is greater than or equal to 1 and less than a first preset number, and the number of significant changes in pressure is greater than or equal to 1 and less than a second preset number, it is determined that impurities are easily accumulated at that position of the pipeline.

[0078] Through the above settings, when the number of significant changes in pressure difference at the same position of the pipeline is greater than or equal to 1 and less than the first preset number, it is determined by the pressure differential sensor 3 that impurities are likely to accumulate at that location of the pipeline. On this basis, when the number of significant changes in pressure is greater than or equal to 1 and less than the second preset number, it can be determined that impurities are likely to accumulate at that location of the pipeline.

[0079] In this way, compared to only using the differential pressure sensor 3 to determine whether a certain position in the pipeline is prone to impurities accumulation, the cooperation between the differential pressure sensor 3 and the pressure sensor 2 can be used to jointly determine whether the same position in the pipeline is prone to impurities accumulation. This can avoid errors in the data of the differential pressure sensor 3 and the judgment results, thereby improving the accuracy of determining whether the same position in the pipeline is prone to impurities accumulation, so that the staff can more accurately understand whether the same position in the pipeline is prone to impurities accumulation, so as to ensure the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0080] On this basis, in some embodiments, such as Figure 1 、 Figure 2 As shown, the pipeline cleaning system further includes a temperature sensor 4 provided on the pipeline cleaning device 100 . The temperature sensor 4 is used to detect the temperature of the medium in the pipeline.

[0081] The processor is connected to the temperature sensor 4 and is configured to:

[0082] The temperature detected by the temperature sensor 4 is received.

[0083] If the temperature of the medium at a certain position of the pipeline is less than or equal to the preset temperature, it is determined that the insulation layer at the position of the pipeline is broken.

[0084] It is understandable that as the medium flows in the pipeline, the temperature of the medium will gradually decrease, and the process of decreasing the medium temperature is a continuous process. If the temperature of the medium at a certain position in the pipeline decreases significantly, it means that the heat loss rate of the medium at that position is too fast.

[0085] It should be noted that the preset temperature refers to the temperature of the medium at a certain position of the pipeline under normal circumstances (for example, 20°, 30°, 40°, etc.).

[0086] Through the above settings, it is possible to determine whether the temperature of the medium is normal by the temperature detected by the temperature sensor 4. If the temperature of the medium at a certain position in the pipeline is lower than the preset temperature at that position, it means that the heat loss at that position in the pipeline is too fast, that is, the insulation layer of the pipeline is damaged and the pipeline cannot be effectively insulated.

[0087] In this way, the staff can obtain the damage condition of the pipeline insulation layer through the temperature sensor 4, and then choose whether to replace or maintain the pipeline insulation layer, further ensuring the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0088] The thermal insulation layer of the pipeline may be thermal insulation rock wool, glass wool, aerogel, etc. wrapped around the outer wall of the pipeline.

[0089] During the movement of the pig 100 in the pipeline, the support tube 202 rotates relative to the pipeline around its own axis due to the pressure difference between the media on the front and rear sides and the friction between the cleaning member 201 and the inner wall of the pipeline.

[0090] In some embodiments, the pipeline cleaning system further includes a posture sensor, which is provided on the pipeline cleaning device 100 and is used to detect the angular velocity of the support pipe 202 rotating around its own axis relative to the pipeline.

[0091] The processor is connected to the attitude sensor and is also configured to:

[0092] Receives the angular velocity detected by the attitude sensor.

[0093] If, at the same position of the pipeline, the rotation speed is less than or equal to the preset angular speed, and the number of times the pressure difference changes significantly is greater than or equal to a first preset number, it is determined that deformation occurs at that position of the pipeline.

[0094] It should be noted that the preset angular velocity refers to the angular velocity (eg, 1 r / min, 2 r / min, etc.) at which the support pipe 202 rotates around its own axis relative to the pipeline when the pig 100 is at a certain position in the pipeline under normal circumstances.

[0095] Through the above arrangement, on the basis that the number of significant changes in the pressure difference at the same position of the pipeline is greater than or equal to the first preset number, if the attitude sensor detects that the angular velocity of the support tube 202 rotating around its own axis relative to the pipeline is less than or equal to the preset angular velocity, it indicates that deformation has occurred at that position of the pipeline.

[0096] Specifically, when the pipe cleaner 100 is affected by impurities or pipeline deformation during its movement, the resistance encountered by the pipe cleaner 100 during its movement will increase, thereby limiting the rotation of the support tube 202 around its own axis. When the angular velocity of the support tube 202 rotating around its own axis relative to the pipeline is less than or equal to the angular velocity of the support tube 202 rotating around its own axis relative to the pipeline under normal circumstances, it indicates that impurities exist or deformation occurs at that position of the pipeline.

[0097] In this way, compared to judging whether the pipeline is deformed only by the pressure differential sensor 3, by cooperating with the pressure differential sensor 3 and the attitude sensor to jointly judge whether the pipeline is deformed, it is possible to avoid errors in the pressure differential sensor 3 data that lead to errors in the judgment results, thereby improving the accuracy of judging whether the pipeline is deformed, so that the staff can more accurately understand whether the pipeline is deformed, so as to ensure the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0098] In some embodiments, if the number of significant changes in the pressure difference at the same position of the pipeline is greater than or equal to 1 and less than a first preset number, and the angular velocity of the support tube 202 rotating around its own axis relative to the pipeline is greater than a preset angular velocity, it is determined that impurities are easily accumulated at that position of the pipeline.

[0099] Through the above setting, compared with only using the pressure difference sensor 3 to determine whether a certain position in the pipeline is prone to impurities accumulation, the cooperation of the pressure difference sensor 3 and the posture sensor can improve the accuracy of determining whether the same position of the pipeline is prone to impurities accumulation, so that the staff can more accurately understand whether the same position of the pipeline is prone to impurities accumulation, so as to ensure the safe and efficient operation of the medium when it is transmitted through the pipeline.

[0100] In some embodiments, the pipeline cleaning system further includes a memory, which is electrically connected to the pressure difference sensor 3 and is used to store the pressure difference detected by the pressure difference sensor 3 .

[0101] In this way, the pressure differential detected by the differential pressure sensor 3 can be stored in the memory. This allows the operator to easily obtain the pressure differential detected by the differential pressure sensor 3 after the pig 100 is removed from the pipeline. The processor can then process the pressure differential detected by the differential pressure sensor 3 to determine whether the pipeline has deformed. This allows the processor (such as a mobile phone or computer) to be placed outside the pipeline, simplifying the structure of the pig 100. The pressure differential detected by the differential pressure sensor 3 can also be stored, making it easier to use the pressure differential detected by the differential pressure sensor 3 later.

[0102] In other embodiments, a processor (such as a CPU, etc.) may also be placed on a circuit board, and staff may directly obtain data processed by the processor (i.e., determine whether deformation occurs or impurities are easily accumulated at the same position of the pipeline).

[0103] In some examples, such as Figure 1 As shown, the pipeline pig 100 further includes a tracker 30 . The tracker 30 is disposed in the support pipe 202 and is used to detect the position of the pipeline pig 100 .

[0104] For example, the differential pressure sensor 3, the pressure sensor 2 and the temperature sensor 4 are arranged in the support tube, so that the differential pressure sensor 3, the pressure sensor 2 and the temperature sensor 4 can directly contact the medium, so that the differential pressure sensor 3 detects the pressure difference, the pressure sensor 2 detects the pressure, and the temperature sensor 4 detects the temperature.

[0105] For example, Figure 1 、 Figure 2 As shown, the differential pressure sensor 3 , the pressure sensor 2 and the temperature sensor 4 are all arranged in the box 1 .

[0106] In this way, the housing 1 can provide protection for the differential pressure sensor 3 , the pressure sensor 2 , and the temperature sensor 4 , thereby preventing the differential pressure sensor 3 , the pressure sensor 2 , and the temperature sensor 4 from being damaged due to being immersed in the medium.

[0107] In some embodiments, as Figure 2 As shown, the box body 1 is provided with a plurality of mounting holes 11 .

[0108] The differential pressure sensor 3 includes a first body 31 , a first detection end 32 and a second detection end 33 . The first detection end 32 and the second detection end 33 extend out of the box body 1 through a mounting hole 11 , respectively.

[0109] The pressure sensor 2 includes a second body 22 and a third detection end 21 . The third detection end 21 extends out of the box 1 through a mounting hole 11 .

[0110] With the above arrangement, the first detection end 32, the second detection end 33, and the third detection end 21 can all extend out of the housing 1 through the mounting hole 11, thereby enabling the differential pressure sensor 3 to detect the pressure difference of the medium on opposite sides of the pig 100. Furthermore, the pressure sensor 2 can detect the pressure of the medium on one side of the pig 100 in the direction of its movement, thereby enabling personnel to obtain the distribution of impurities in the pipeline and determine whether the pipeline has deformed.

[0111] In some embodiments, as Figure 2 As shown, along the moving direction of the pig 100 , the box body 1 includes a first side wall 15 and a second side wall 16 that are opposite to each other, and both the first side wall 15 and the second side wall 16 are provided with a mounting hole 11 .

[0112] Among them, the first detection end 32 of the pressure difference sensor 3 extends out of the box body 1 through a mounting hole 11 on the first side wall 15, and the second detection end 33 extends out of the box body 1 through a mounting hole 11 on the second side wall 16, so as to ensure that the pressure difference sensor 3 can detect the pressure difference of the medium on the opposite sides of the pipe cleaning device 100.

[0113] In some examples, the temperature sensor 4 includes a third body 42 and a fourth detection end 41 . The fourth detection end 41 extends out of the box 1 through a mounting hole 11 to detect the temperature of the medium.

[0114] In some embodiments, as Figure 2 As shown, along the radial direction of the support tube 202, the temperature sensor 4 and the pressure sensor 2 are located on the same side of the differential pressure sensor 3. And along the axial direction of the support tube 202, the temperature sensor 4 and the pressure sensor 2 are arranged in sequence.

[0115] Through the above-mentioned arrangement, compared with the pressure sensor 2 or the temperature sensor 4 being located on the axial side of the support tube 202 of the differential pressure sensor 3, when the pressure sensor 2 and the temperature sensor 4 are located on the radial side of the support tube 202, the size of the space occupied by the pressure sensor 2, the temperature sensor 4 and the differential pressure sensor 3 in the axial direction of the support tube 202 can be avoided to be large. At the same time, along the axial direction of the support tube 202, the temperature sensor 4 and the pressure sensor 2 are arranged in sequence, which can avoid the size of the space occupied by the pressure sensor 2, the temperature sensor 4 and the differential pressure sensor 3 in the radial direction of the support tube 202 to be large, thereby improving the integration of the pressure sensor 2, the temperature sensor 4 and the differential pressure sensor 3, and facilitating the spatial arrangement of the pressure sensor 2, the temperature sensor 4 and the differential pressure sensor 3.

[0116] It can be understood that in the above case, when the pressure sensor 2, the temperature sensor 4 and the differential pressure sensor 3 are all arranged in the box body, it is possible to avoid the size of the box body 1 in the axial direction of the support tube 202 or in the radial direction of the support tube 202 being too large, thereby facilitating the spatial arrangement of the box body 1.

[0117] In some embodiments, the pipe pig 100 further includes a circuit board 5, and a memory is disposed on the circuit board 5. The pressure sensor 2, the temperature sensor 4, and the differential pressure sensor 3 are all connected to the circuit board to store the pressure detected by the pressure sensor 2, the pressure difference detected by the differential pressure sensor 3, and the temperature detected by the temperature sensor 4 in the memory.

[0118] Through the above setting, the pressure detected by the pressure sensor 2, the pressure difference detected by the differential pressure sensor 3 and the temperature detected by the temperature sensor 4 can be transmitted to the memory through the circuit board 5, and then stored in the memory to save the pressure detected by the pressure sensor 2, the pressure difference detected by the differential pressure sensor 3 and the temperature detected by the temperature sensor 4.

[0119] In some embodiments, as Figure 2 As shown, the thickness direction of the circuit board 5 is perpendicular to the axial direction of the support tube 202 , and the pressure sensor 2 , the temperature sensor 4 and the differential pressure sensor 3 are all on one side of the thickness direction of the circuit board 5 .

[0120] Through the above-mentioned setting, compared with the thickness direction of the circuit board 5 being consistent with the axial direction of the support tube 202, the thickness direction of the circuit board 5 is perpendicular to the axial direction of the support tube 202, and the pressure sensor 2, the temperature sensor 4 and the differential pressure sensor 3 are all on one side of the thickness direction of the circuit board 5. Along the thickness direction of the circuit board, the space occupied by the circuit board 5, the differential pressure sensor 3, the pressure sensor 2 and the temperature sensor 4 is smaller, which can improve the integration of the circuit board 5, the differential pressure sensor 3, the pressure sensor 2 and the temperature sensor 4, and facilitate the spatial setting of the circuit board 5, the differential pressure sensor 3, the pressure sensor 2 and the temperature sensor 4.

[0121] In some examples, such as Figure 2 As shown, the circuit board 5 is arranged in the box body 1 , so that the box body 1 can provide protection for the circuit board 5 .

[0122] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A pipeline cleaning system, characterized in that: include: A pipe cleaner (100), the pipe cleaner (100) being used to move in a pipeline to remove impurities in the pipeline; a differential pressure sensor (3), the differential pressure sensor (3) being arranged on the pipe cleaning device (100), and being used for detecting the pressure difference of the medium in the pipe at the front and rear sides of the pipe cleaning device (100) when the pipe cleaning device (100) moves in the pipe; A processor, connected to the pressure difference sensor (3), is configured to: receiving the pressure difference detected by the pressure difference sensor (3); If the number of times the pressure difference at the same position of the pipeline changes significantly is greater than or equal to a first preset number, it is determined that deformation has occurred at that position of the pipeline; wherein the significant change in pressure difference means that the value of the pressure difference increases or decreases within a first preset time by a value greater than or equal to a first preset value.

2. The pipeline cleaning system according to claim 1, characterized in that: The processor is further configured to: If the number of times the pressure difference at the same position of the pipeline changes significantly is greater than or equal to 1 and less than a first preset number, it is determined that impurities are easily accumulated at the position of the pipeline, wherein the first preset number is greater than 1.

3. The pipeline cleaning system according to claim 1, characterized in that: It also comprises a pressure sensor (2), wherein the pressure sensor (2) is arranged on the pipeline cleaning device (100); when the pipeline cleaning device (100) moves in the pipeline, the pressure sensor (2) is used to detect the pressure of the medium in the pipeline; The processor is connected to the pressure sensor (2) and is further configured to: receiving the pressure detected by the pressure sensor (2); If the number of times the pressure difference at the same position of the pipeline changes significantly is greater than or equal to a first preset number, and the number of times the pressure changes significantly is greater than or equal to a second preset number, it is determined that deformation has occurred at that position of the pipeline; wherein the significant change in pressure means that the value of the pressure increases or decreases within the second preset time by a value greater than or equal to a second preset value.

4. The pipeline cleaning system according to claim 1, characterized in that: Also includes: A temperature sensor (4), arranged on the pipe cleaning device (100), the temperature sensor (4) being used to detect the temperature of the medium in the pipe; The processor is connected to the temperature sensor (4) and is configured to: receiving the temperature detected by the temperature sensor (4); If the temperature of the medium at a certain position of the pipeline is less than or equal to a preset temperature, it is determined that the insulation layer at this position of the pipeline is broken.

5. The pipeline cleaning system according to claim 1, characterized in that: The pipe cleaning device (100) comprises a support pipe (202); The pipeline cleaning system further comprises a posture sensor, which is arranged on the pipeline cleaning device (100) and is used to detect the angular velocity of the support pipe (202) rotating around its own axis relative to the pipeline; The processor is connected to the posture sensor and is further configured to: receiving the angular velocity detected by the attitude sensor; If, at the same position of the pipeline, the angular velocity is less than or equal to the preset angular velocity, and the number of times the pressure difference changes significantly is greater than or equal to a first preset number, it is determined that deformation occurs at that position of the pipeline.

6. The pipeline cleaning system according to any one of claims 1 to 5, characterized in that: It also comprises a memory, which is electrically connected to the pressure difference sensor (3) and is used to store the pressure difference detected by the pressure difference sensor (3).

7. The pipeline cleaning system according to any one of claims 1 to 5, characterized in that: The pipe cleaner (100) comprises a support pipe (202) and a cleaning member (201), wherein the cleaning member (201) surrounds the support pipe (202) and is used to clean impurities in the pipeline; The pipeline cleaning system also includes a pressure sensor (2) and a temperature sensor (4); the pressure sensor (2), the temperature sensor (4) and the differential pressure sensor (3) are all arranged in the support pipe (202).

8. The pipeline cleaning system according to claim 7, characterized in that: Along the radial direction of the support tube (202), the temperature sensor (4) and the pressure sensor (2) are located on the same side of the differential pressure sensor (3), and along the axial direction of the support tube (202), the temperature sensor (4) and the pressure sensor (2) are arranged in sequence.

9. The pipeline cleaning system according to claim 7, characterized in that: The pipe cleaning device (100) further comprises a box (1), wherein the box (1) is arranged in the support pipe (202), and the pressure sensor (2), the temperature sensor (4) and the differential pressure sensor (3) are all arranged in the box (1).

10. The pipeline cleaning system according to claim 9, characterized in that: It also comprises a circuit board (5), on which a memory is provided, and the pressure sensor (2), the differential pressure sensor (3) and the temperature sensor (4) are all connected to the circuit board (5), so that the pressure detected by the pressure sensor (2), the pressure difference detected by the differential pressure sensor (3) and the temperature detected by the temperature sensor (4) are stored in the memory; And / or, the pipeline cleaning system further comprises a circuit board (5); The thickness direction of the circuit board (5) is perpendicular to the axial direction of the support tube (202); The pressure sensor (2), the differential pressure sensor (3) and the temperature sensor (4) are all located on one side of the circuit board (5) in the thickness direction of the circuit board (5).

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