A device and method for continuous temperature detection along a pipeline

Abstract

The present invention relates to a device and method for continuously detecting the temperature along a pipeline. The device includes a connector having a front leather cup at one end and a rear leather cup at the other end; a connecting sleeve mounted on the connector and located between the front leather cup and the rear leather cup; a plurality of guide brackets, each of which is evenly distributed along the circumference of the connecting sleeve, each of which is provided with a rolling wheel and an angle sensor at its free end; and a temperature sensor is also provided on the connector. The present invention places a continuous temperature detection device in a pipeline, and operates along the axis of the pipeline under the pressure difference of the pipeline medium, thereby directly detecting the temperature distribution trend along the pipeline, which is used for detailed analysis of the safe operation status of the pipeline.

Description

Technical Field

[0001] The invention relates to a device and a method for continuously detecting temperature along a pipeline, belonging to the technical field of pipeline detection equipment. Background Art

[0002] As an essential component of the modern transportation system, pipeline transportation offers advantages such as low transportation costs, high safety and reliability, and minimal environmental pollution. It is particularly suitable for the long-distance transportation of energy media such as oil and natural gas. The temperature of the medium along the pipeline is closely related to the corrosion rate and flow assurance of the pipeline, significantly impacting the safety and economic efficiency of pipeline transportation and making it difficult to monitor. Therefore, to ensure the safe and stable operation of long-distance pipeline systems, real-time monitoring of the temperature of the transported medium along the pipeline is necessary to analyze and assess the operating status of the pipeline system. This provides precise data support for pipeline integrity management and repair and maintenance, reduces or avoids volatile organic compound (VOC) emissions, and helps improve pipeline economic transportation, safety, environmental protection, and intelligent capabilities.

[0003] Traditionally, pipeline valve chambers are installed at certain distances along the pipeline (usually tens of kilometers) and temperature sensors are installed to collect temperatures at specific points along the pipeline. The temperatures collected at various detection points along the pipeline are then used to calculate the temperature distribution trend along the pipeline using pipeline operating simulation technology for analysis of pipeline safety. This approach fails to provide feedback on the actual temperature distribution trend at each location within the pipeline. It cannot analyze the impact of factors such as flow friction along the pipeline on the temperature of the medium within the pipeline based on the actual temperature distribution. It cannot accurately analyze the heat transfer between the pipeline, the flowing medium, and the surrounding environment. It cannot accurately analyze the temperature field changes along the pipeline based on the heat transfer state and detect abnormal changes. It cannot accurately identify pipe sections with excessive temperature loss and provide a basis for repair. This approach is not conducive to comprehensive energy conservation, emission reduction, and environmental pollution reduction of the pipeline system. Specifically, it is not conducive to reducing fuel consumption, carbon nitride (CO2), nitrogen oxides (NOx), and volatile organic compounds (VOCs) emissions, analyzing the causes and implementing corresponding measures, and it is not conducive to strengthening and refining pipeline integrity management.

[0004] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the Invention

[0005] In response to the above technical problems, the present invention provides a device and method for continuous temperature detection along the pipeline. The device places a continuous temperature detection device in the pipeline. Driven by the pressure difference of the pipeline medium, it runs along the axis of the pipeline. It can directly detect the temperature distribution trend along the pipeline and use it to conduct a detailed analysis of the safe operation status of the pipeline.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for continuous temperature detection along a pipeline, comprising:

[0008] A connecting piece, wherein one end of the connecting piece is provided with a front leather cup and the other end is provided with a rear leather cup;

[0009] A connecting sleeve, sleeved on the connecting piece and located between the front leather cup and the rear leather cup;

[0010] A plurality of guide brackets, each of which is evenly distributed along the circumferential direction of the connecting sleeve, and a rolling wheel and an angle sensor are provided at the free end of each guide bracket;

[0011] The connecting piece is also provided with a temperature sensor.

[0012] The device for continuous temperature detection along the pipeline, preferably, the guide bracket includes a lower bracket and an upper bracket slidably connected to the lower bracket, and the rolling wheel and the angle sensor are arranged on the upper bracket.

[0013] The device for continuous temperature detection along the pipeline, preferably, the lower bracket includes a bottom rod fixed to the connecting piece and lower guide rods provided at both ends of the bottom rod, and a guide groove is provided along the length direction of the lower guide rod;

[0014] The upper bracket includes two upper guide rods, each of which is provided with a guide block. The guide block is slidably arranged in the guide groove. A mounting member for mounting the rolling wheel and a control member for controlling the lifting and lowering of the upper bracket are provided between the free ends of the two upper guide rods.

[0015] The above-mentioned equipment for continuous temperature detection along the pipeline, preferably, the control part includes two limit rods arranged on the bottom rod and parallel to the lower guide rod, and a limit groove is opened along the length direction of the upper guide rod and passes through its non-free end, an elastic part is provided in the limit groove, and the limit rod is slidably inserted in the limit groove and abuts against the elastic part.

[0016] The device for continuous temperature detection along the pipeline, preferably, the mounting part includes a lower mounting plate and an upper mounting plate that are detachably connected, and both the lower mounting plate and the upper mounting plate are provided with a through groove for accommodating the rolling wheel and a mounting groove for accommodating the rolling wheel shaft.

[0017] The device for continuous temperature detection along the pipeline, preferably, the lower mounting plate is provided with a lower through groove, lower connecting blocks are provided on both sides of the lower through groove, and the lower connecting blocks are provided with a lower mounting groove;

[0018] An upper through slot corresponding to the lower through slot is provided on the upper mounting plate, upper connecting blocks are provided on both sides of the upper through slot, an upper mounting slot corresponding to the lower mounting slot is provided on the upper connecting block, the rotating shaft of the rolling wheel is installed in the upper mounting slot and the lower mounting slot, and the top of the rolling wheel extends out of the top surface of the upper mounting plate.

[0019] The device for continuous temperature detection along the pipeline, preferably, a groove arranged at a right angle is provided on the inner wall surface of the upper guide rod near the front leather cup, the groove includes a first inclined surface and a second inclined surface perpendicular to the first inclined surface, and a positioning rod is provided on the first inclined surface;

[0020] A fixing block adapted to the groove is provided at one end of the lower mounting plate, and a first positioning hole for inserting the positioning rod is provided on the fixing block. A fixing plate adapted to the groove and attached to the fixing block is provided at the end of the upper mounting plate, and a second positioning hole for inserting the positioning rod is also provided on the fixing plate.

[0021] The device for continuous temperature detection along the pipeline is preferably provided with an abutment block abutting against the upper guide rod at the other end of the lower mounting plate, one end of the upper mounting plate abuts against the abutment block, and the upper guide rod, the abutment block and the upper mounting plate are fastened together by bolts.

[0022] The equipment for continuous temperature detection along the pipeline preferably has an extension portion extending from the top of the upper guide rod near the rear leather cup toward one side of the rear leather cup, and the upper mounting plate, the abutment block, the extension portion and the top end of the lower guide rod near the rear leather cup are fastened together by bolts.

[0023] A detection method for a continuous temperature detection device along a pipeline, comprising the following steps:

[0024] The device for continuous temperature detection along the pipeline is placed in a long-distance pipeline. Under the action of the flow of the medium in the pipeline, the front leather cup and the rear leather cup are pushed to move, thereby driving the detection device to move in the pipeline. The rolling wheel rolls on the inner wall of the long-distance pipeline, and its rotation angle is detected by the angle sensor to record the travel position of the detection device in real time. The temperature conditions at various positions in the pipeline are continuously detected in real time by the temperature sensor, so as to timely correct the pipeline simulation results and facilitate the later maintenance of the pipeline.

[0025] The present invention has the following advantages due to the adoption of the above technical solution:

[0026] 1. The present invention places a continuous temperature detection device in the pipeline. Driven by the pressure difference of the pipeline medium, it runs along the axis of the pipeline. It can directly detect the temperature distribution trend along the pipeline and conduct a detailed analysis of the safe operation status of the pipeline.

[0027] 2. The present invention can directly detect the actual temperature at each location inside the pipeline, thereby generating a temperature distribution trend along the pipeline. Based on the actual temperature distribution, it can analyze the impact of factors such as flow friction along the pipeline on the temperature of the medium inside the pipeline, accurately analyze the heat transfer state of the pipeline, the flowing medium, and the surrounding environment, and finely analyze the temperature field changes along the pipeline and detect abnormal changes based on the heat transfer state. For abnormal pipe sections with excessive temperature drop along the pipeline, the cause can be analyzed and suppressive measures or on-site inspection and maintenance can be taken. Adverse environmental factors such as poor insulation caused by existing pipeline defects, abnormal heat transfer or insufficient burial depth, and excessive soil moisture can be identified and accurately addressed. This reduces heat loss along the entire pipeline and the energy consumption of pipeline heating and transportation fuel. While achieving energy savings, it also reduces emissions of carbon nitride (CO2), nitrogen oxides (NOx), and volatile organic compounds (VOCs) caused by the combustion of heating fuel. This provides more accurate data and technical support for the safe and precise operation and maintenance of pipelines, further improving pipeline integrity and reliability, reducing environmental pollution, and enhancing pipeline safety, economic operation, and intelligent management and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the three-dimensional structure of an apparatus for continuous temperature detection along a pipeline provided by one embodiment of the present invention;

[0029] Figure 2 A schematic structural diagram of the guide bracket provided in this embodiment of the present invention;

[0030] Figure 3 A schematic structural diagram of the lower bracket provided in this embodiment of the present invention;

[0031] Figure 4 A schematic diagram of an upper bracket provided in this embodiment of the present invention;

[0032] Figure 5 A schematic cross-sectional view of the guide bracket provided in this embodiment of the present invention;

[0033] Figure 6 A schematic diagram of the exploded structure of the upper bracket provided in this embodiment of the present invention;

[0034] Figure 7 A graph showing a trend of temperature changes in a pipeline using prior art technology;

[0035] Figure 8 A trend diagram of temperature detection in a pipeline according to an embodiment of the present invention;

[0036] Figure 9 A trend diagram of temperature detection in another pipeline using the prior art;

[0037] Figure 10 A trend diagram of temperature detection in another pipeline according to another embodiment of the present invention;

[0038] The reference numerals in the figures are as follows:

[0039] 1-through shaft; 2-front leather cup; 3-rear leather cup; 4-connecting sleeve; 5-guide bracket; 6-rolling wheel; 7-temperature sensor; 8-lower bracket; 9-upper bracket; 10-bottom rod; 11-lower guide rod; 12-upper guide rod; 13-guide groove; 14-guide block; 15-limiting groove; 16-limiting rod; 17-spring; 18-lower mounting plate; 19-upper mounting plate; 20-lower through groove; 21-lower connecting block; 22 -lower mounting groove; 23-upper through groove; 24-upper connecting block; 25-upper mounting groove; 26-groove; 27-first inclined surface; 28-second inclined surface; 29-positioning rod; 30-fixing block; 31-first positioning hole; 32-fixing plate; 33-second positioning hole; 34-abutment block; 35-first screw hole; 36-first threaded hole; 37-extension portion; 38-second screw hole; 39-second threaded hole; 40-abutment inclined surface. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention are described clearly and completely below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by ordinary persons in this field based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second", "third", "fourth" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0042] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inner side," "outer side," "lower," "upper," etc. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

[0043] Traditionally, pipeline valve chambers are installed at certain distances along the pipeline (usually tens of kilometers) and temperature sensors are installed to collect temperatures at specific points along the pipeline. The temperatures collected at various detection points along the pipeline are then used to calculate the temperature distribution trend along the pipeline using pipeline operating simulation technology for analysis of pipeline safety. This approach fails to provide feedback on the actual temperature distribution trend at each location within the pipeline. It cannot analyze the impact of factors such as flow friction along the pipeline on the temperature of the medium within the pipeline based on the actual temperature distribution. It cannot accurately analyze the heat transfer between the pipeline, the flowing medium, and the surrounding environment. It cannot accurately analyze the temperature field changes along the pipeline based on the heat transfer state and detect abnormal changes. It cannot accurately identify pipe sections with excessive temperature loss and provide a basis for repair. This approach is not conducive to comprehensive energy conservation, emission reduction, and environmental pollution reduction of the pipeline system. Specifically, it is not conducive to reducing fuel consumption, carbon nitride (CO2), nitrogen oxides (NOx), and volatile organic compounds (VOCs) emissions, analyzing the causes and implementing corresponding measures, and it is not conducive to strengthening and refining pipeline integrity management.

[0044] Based on the above technical problems, the present invention provides a device and method for continuous temperature detection along the pipeline. The device places a continuous temperature detection device in the pipeline. Driven by the pressure difference of the pipeline medium, it runs along the axis of the pipeline. It can directly detect the temperature distribution trend along the pipeline and perform a detailed analysis of the safe operation status of the pipeline.

[0045] like Figure 1 As shown, the device for continuous temperature detection along the pipeline involved in the present invention includes: a through shaft 1, a front leather cup 2 is provided at the front end of the through shaft 1, and a rear leather cup 3 is provided at the rear end thereof, a connecting sleeve 4 is sleeved and fixed on the through shaft 1 between the front leather cup 2 and the rear leather cup 3, and a plurality of guide brackets 5 are evenly provided on the circumferential surface of the connecting sleeve 4 along its circumferential direction, wherein the top ends of four guide brackets 5 are provided with rolling wheels 6, and the rolling wheels 6 are evenly distributed on the circumferential side of the through shaft 1 along the circumferential direction, and also include an angle sensor for detecting the rotation angle of the rolling wheel 6, and a temperature sensor 7 is also provided on the through shaft 1.

[0046] Furthermore, if Figure 2 、 Figure 3As shown, the guide bracket 5 includes a lower bracket 8 and an upper bracket 9. The lower bracket 8 includes a bottom rod 10 fixedly connected to the connecting sleeve 4. A lower guide rod 11 is provided at both ends of the bottom rod 10. The upper bracket 9 includes two upper guide rods 12 slidably connected to one side surface of the lower guide rod 11. A guide groove 13 is provided on one side of the lower guide rod 11 along its length. A guide block 14 sliding in the guide groove 13 is provided on one side of the upper guide rod 12. A mounting member for mounting the rolling wheel 6 is provided between the ends of the two upper guide rods 12 away from the connecting sleeve 4, and also includes a control member for controlling the lifting and lowering of the upper bracket 9.

[0047] Furthermore, if Figure 5 As shown, the upper guide rod 12 is provided with a limiting slot 15 extending through its bottom end along its length. The control member includes two limiting rods 16 disposed on the surface of the bottom rod 10. The limiting rods 16 are inserted and slidably connected within the limiting slots 15. A spring 17 is fixedly connected between the inner wall of the end of the limiting slot 15 and the limiting rods 16. Under the elastic force of the spring 17, the rolling wheel 6 is pressed against the inner wall of the pipe, allowing the detection device to move smoothly within the pipe. The rolling wheel 6 can roll along the inner wall of the pipe. The angle sensor detects the rotation angle of the rolling wheel 6. Based on the radius of the rolling wheel 6 and its rotation angle, the circumferential rolling distance of the rolling wheel 6 is calculated, and the movement distance of the detection device can be determined. Therefore, the movement distance of the detection device can be detected in real time. The temperature sensor 7 is also used to detect the temperature at various locations within each pipe.

[0048] Furthermore, if Figure 1 、 Figure 2 As shown, the upper guide rod 12 and the lower guide rod 11 are inclined from bottom to top toward the side of the rear leather cup 3, and the upper guide rod 12 is located on the side of the lower guide rod 11 facing the front leather cup 2. The top of the upper guide rod 12 facing the front leather cup 2 is provided with an abutment slope 40. When the detection device is sent into the pipeline, when the end of the pipeline abuts against the abutment slope 40, the detection device is continued to be pushed so that the upper guide rod 12 can slide downward along the lower guide rod 11, and finally all the upper guide rods 12 are completely sent into the pipeline for easy use.

[0049] Furthermore, if Figure 6As shown, the mounting part includes a lower mounting plate 18 and an upper mounting plate 19, a lower through slot 20 is provided in the middle of the lower mounting plate 18, and the surface of the lower mounting plate 18 is provided with lower connecting blocks 21 on both sides of the lower through slot 20, and the surface of the lower connecting block 21 is provided with a semicircular lower mounting slot 22, and the upper mounting plate 19 is provided with an upper through slot 23 corresponding to the lower through slot 20, and the lower surface of the upper mounting plate 19 is provided with upper connecting blocks 24 on both sides of the upper through slot 23, and the lower surface of the upper connecting block 24 is provided with an upper mounting slot 25 that matches the lower mounting slot 22, the rotating shaft of the scroll wheel 6 is installed in the upper mounting slot 25 and the lower mounting slot 22, the angle sensor is installed in the upper mounting slot 25 and the lower mounting slot 22, the top of the scroll wheel 6 extends out of the surface of the upper mounting plate 19 through the upper through slot 23, and also includes a positioning member for fixing the upper mounting plate 19 and the lower mounting plate 18 to the upper guide rod 12.

[0050] Furthermore, if Figure 6 As shown, a groove 26 arranged at a right angle is provided on the inner surface of the upper guide rod 12 near the front leather cup 2, and the groove 26 includes a first inclined surface 27 inclined toward the side of the front leather cup 2 and a second inclined surface 28 perpendicular to the first inclined surface 27. A positioning rod 29 perpendicular to the first inclined surface 27 is provided on the first inclined surface 27, and a fixing block 30 placed in the groove 26 is provided at one end of the lower mounting plate 18. A first positioning hole 31 for inserting the positioning rod 29 is provided on the fixing block 30. A fixing plate 32 placed in the groove 26 and attached to the upper surface of the fixing block 30 is provided on the end of the upper mounting plate 19. The fixing plate 32 is provided with a second positioning hole 33 for inserting the positioning rod 29.

[0051] The other end of lower mounting plate 18, located near fixed block 30, is provided with an abutment block 34 that abuts the top of the other upper guide rod 12. One end of upper mounting plate 19 abuts the surface of abutment block 34. Abutment block 34 and mounting plate 19 define corresponding first screw holes 35. The top of upper guide rod 12 defines a first threaded hole 36 that mates with first screw hole 35. The positioning member is specifically a first bolt (not shown) disposed within first screw hole 35 and first threaded hole 36.

[0052] like Figure 6 As shown, when installing the rolling wheel 6, its two rotating shafts are set in the lower mounting groove 22, and the upper mounting plate 19 is placed on the surface of the lower mounting plate 18, so that the upper mounting groove 25 and the lower mounting groove 22 limit the rolling wheel 6, and then the fixing block 30 and the fixing plate 32 at one end of the upper mounting plate 19 and the lower mounting plate 18 are placed in the groove 26, so that the positioning rod 29 is inserted into the first positioning hole 31 and the second positioning hole 33, and the upper mounting plate 19, the lower mounting plate 18 and the top of the other upper guide rod 12 are fixed by the first bolt.

[0053] An extension portion 37 is provided at the top of one of the upper guide rods 12 extending toward one side of the rear leather cup 3, and corresponding second screw holes 38 are provided on the upper mounting plate 19, the abutment block 34 and the extension portion 37. A second threaded hole 39 is provided at the top of one of the lower guide rods 11 to match the second screw hole 38. When not working, the upper guide rod 12 slides downward along the lower guide rod 11 by tightening the second bolt, and the spring 17 is compressed, thereby reducing the overall volume of the detection equipment. When performing detection work, the second bolt is unscrewed, and under the elastic force of the spring 17, the upper guide rod 12 slides upward along the lower guide rod 11, and normal detection work can be performed.

[0054] The detection method of the detection device of the present invention is specifically as follows: the detection device is placed in a long-distance pipeline, and under the action of the flow of the medium in the pipeline, the front leather cup 2 and the rear leather cup 3 are pushed to move, thereby driving the detection device to move in the pipeline, and the rolling wheel 6 rolls on the inner wall of the long-distance pipeline, and its rotation angle is detected by the angle sensor to record the travel position of the detection device in real time, and the temperature conditions of various positions in the pipeline are continuously detected in real time through the temperature sensor 7, so as to timely correct the pipeline simulation results and facilitate the later maintenance of the pipeline.

[0055] like Figure 7 、 Figure 9 As shown, in the prior art, when detecting the temperature in a pipeline, the temperature at the first and last stations is detected, and then the temperature in the valve chamber is detected, thereby inferring the temperature conditions at various locations in the pipeline. Figure 8 、 Figure 10 As shown, the temperature inside the same pipeline is detected. The detection device of the present application enters the pipeline and moves along the pipeline to detect the temperature at various positions in the pipeline, thereby being able to accurately express the temperature conditions at various positions inside the pipeline.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for continuous temperature detection along the pipeline, characterized in that: include: A connecting piece, wherein one end of the connecting piece is provided with a front leather cup (2) and the other end is provided with a rear leather cup (3); A connecting sleeve (4) is sleeved on the connecting piece and is located between the front leather cup (2) and the rear leather cup (3); A plurality of guide brackets (5), each of which is evenly distributed along the circumferential direction of the connecting sleeve (4), and a rolling wheel (6) and an angle sensor are provided at the free end of each guide bracket (5); The connecting piece is also provided with a temperature sensor (7); The guide bracket (5) comprises a lower bracket (8) and an upper bracket (9) slidably connected to the lower bracket (8), and the rolling wheel (6) and the angle sensor are arranged on the upper bracket (9); The lower bracket (8) comprises a bottom rod (10) fixed to the connecting member and lower guide rods (11) arranged at both ends of the bottom rod (10), and a guide groove (13) is provided along the length direction of the lower guide rod (11); The upper bracket (9) comprises two upper guide rods (12), a guide block (14) is provided on the upper guide rods (12), the guide block (14) is slidably arranged in the guide groove (13), and a mounting member for mounting the rolling wheel (6) and a control member for controlling the lifting of the upper bracket (9) are provided between the free ends of the two upper guide rods (12); The control member includes two limiting rods (16) provided on the bottom rod (10) and arranged in parallel with the lower guide rod (11); a limiting groove (15) penetrating the non-free end of the upper guide rod (12) is provided along the length direction of the upper guide rod (12); an elastic member is provided in the limiting groove (15); the limiting rod (16) is slidably inserted in the limiting groove (15) and abuts against the elastic member; the mounting member includes a lower mounting plate (18) and an upper mounting plate (19) that are detachably connected; the lower mounting plate (18) and the upper mounting plate (19) are both provided with a through groove for accommodating the rolling wheel (6) and a mounting groove for accommodating the rotating shaft of the rolling wheel (6); A lower through slot (20) is provided on the lower mounting plate (18), lower connecting blocks (21) are provided on both sides of the lower through slot (20), and a lower mounting slot (22) is provided on the lower connecting block (21); An upper through groove (23) corresponding to the lower through groove (20) is formed on the upper mounting plate (19), upper connecting blocks (24) are provided on both sides of the upper through groove (23), and an upper mounting groove (25) corresponding to the lower mounting groove (22) is formed on the upper connecting block (24). The rotating shaft of the rolling wheel (6) is installed in the upper mounting groove (25) and the lower mounting groove (22), and the top of the rolling wheel (6) protrudes from the top surface of the upper mounting plate (19).

2. The device for continuous temperature detection along the pipeline according to claim 1 is characterized in that: A groove (26) arranged at a right angle is provided on the inner wall surface of the upper guide rod (12) near the front leather cup (2), the groove (26) comprising a first inclined surface (27) and a second inclined surface (28) perpendicular to the first inclined surface (27), and a positioning rod (29) is provided on the first inclined surface (27); A fixing block (30) adapted to the groove (26) is provided at one end of the lower mounting plate (18), and a first positioning hole (31) for inserting the positioning rod (29) is provided on the fixing block (30). A fixing plate (32) adapted to the groove (26) and attached to the fixing block (30) is provided at the end of the upper mounting plate (19), and a second positioning hole (33) for inserting the positioning rod (29) is also provided on the fixing plate (32).

3. The device for continuous temperature detection along the pipeline according to claim 2, characterized in that: The other end of the lower mounting plate (18) is provided with an abutting block (34) that abuts against the upper guide rod (12), one end of the upper mounting plate (19) abuts against the abutting block (34), and the upper guide rod (12), the abutting block (34) and the upper mounting plate (19) are fastened together by bolts.

4. The device for continuous temperature detection along the pipeline according to claim 3 is characterized in that: An extension portion (37) extends from the top of the upper guide rod (12) near the rear leather cup (3) toward one side of the rear leather cup (3), and the upper mounting plate (19), the abutment block (34), the extension portion (37) and the top end of the lower guide rod (11) near the rear leather cup (3) are fastened together by bolts.

5. A detection method for a continuous temperature detection device along a pipeline according to any one of claims 1 to 4, characterized in that: The steps include: The device for continuous temperature detection along the pipeline is placed in a long-distance pipeline. Under the action of the flow of the medium in the pipeline, the front leather cup (2) and the rear leather cup (3) are pushed to move, thereby driving the detection device to move in the pipeline. The rolling wheel (6) rolls on the inner wall of the long-distance pipeline, and its rotation angle is detected by the angle sensor to record the travel position of the detection device in real time. The temperature conditions at various positions in the pipeline are continuously detected in real time by the temperature sensor (7), so that the pipeline simulation results can be corrected in time, which is convenient for the later maintenance of the pipeline.

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