Device and method for continuously detecting on-way temperature in pipeline

Abstract

The invention relates to a device and method for continuously detecting the on-way temperature in a pipeline. The device comprises a connecting piece, one end of the connecting piece is provided with a front leather cup, and the other end of the connecting piece is provided with a rear leather cup; the connecting sleeve is arranged on the connecting piece in a sleeving mode and located between the front leather cup and the rear leather cup; the multiple guide supports are evenly distributed in the circumferential direction of the connecting sleeve, and the free end of each guide support is provided with a rolling wheel and an angle sensor; a temperature sensor is further arranged on the connecting piece. The temperature continuous detection device is arranged in the pipeline and runs along the axis of the pipeline under the pushing of the pipeline medium pressure difference, the on-way temperature distribution trend of the pipeline can be directly detected, and the device is used for finely analyzing the safe running state 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 important part of the modern transportation system, pipeline transportation has the advantages of low transportation cost, high safety and reliability, and low environmental pollution. It is especially suitable for 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, which has a great impact on the safety and economy of pipeline transportation, and is difficult to monitor. Therefore, in order to ensure the safe and stable operation of the long-distance pipeline system, it is necessary to monitor the temperature of the transported medium along the pipeline in real time to analyze and evaluate the operating status of the pipeline system, so as to provide accurate data support for pipeline integrity management and repair and maintenance work, reduce or avoid volatile organic compounds (VOCs) emissions, and help improve the economic transportation, safety, environmental protection and intelligence level of pipelines.

[0003] In the traditional mode, a pipeline valve room is often set up at a certain distance (usually tens of kilometers) along the pipeline, and a temperature sensor is installed to collect the temperature at a specific point of the pipeline. Then, the temperature collected at each detection point along the pipeline is used to calculate the temperature distribution trend along the pipeline through pipeline working condition simulation technology, which is used to analyze the safe operation status of the pipeline. This solution cannot feedback the real temperature distribution trend at each position inside the pipeline, cannot analyze the influence of factors such as flow friction resistance of the medium along the pipeline on the temperature of the medium in the pipeline based on the real temperature distribution, cannot accurately analyze the heat transfer state between the pipeline and the flowing medium and the surrounding environment, cannot finely analyze the temperature field changes along the pipeline based on the heat transfer state and find abnormal changes, cannot accurately check the pipe section with excessive temperature loss and provide a basis for maintenance, which is not conducive to comprehensive energy conservation, emission reduction and environmental pollution reduction of the pipeline system, and is not conducive to reducing fuel consumption, reducing carbon nitride (CO2), nitrogen oxides (NOx) and volatile organic compounds (VOCs) emissions, analyzing the causes and taking corresponding measures, and 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 view of the above technical problems, the present invention provides a device and method for continuous temperature detection along a pipeline. The device places a continuous temperature detection device in the pipeline, and runs along the axis of the pipeline under the pressure difference of the pipeline medium. The temperature distribution trend along the pipeline can be directly detected, which is used for detailed analysis of the safe operation status of the pipeline.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A device for continuous temperature detection along a pipeline, comprising: A connecting piece, wherein one end of the connecting piece is provided with a front leather cup, and the other end of the connecting piece is provided with a rear leather cup; A connecting sleeve, which is sleeved on the connecting piece and is located between the front leather cup and the rear leather cup; A plurality of guide brackets, the plurality of guide brackets being evenly distributed along the circumferential direction of the connecting sleeve, and a rolling wheel and an angle sensor being disposed at the free end of each guide bracket; The connecting piece is also provided with a temperature sensor.

[0007] 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.

[0008] The device for continuous temperature detection along the pipeline, preferably, the lower bracket comprises a bottom rod fixed on the connecting piece and lower guide rods arranged at both ends of the bottom rod, and a guide groove is provided along the length direction of the lower guide rod; The upper bracket includes two upper guide rods, each of which is provided with a guide block, which is slidably arranged in the guide groove, and a mounting member for mounting the rolling wheel and a control member for controlling the lifting of the upper bracket are arranged between the free ends of the two upper guide rods.

[0009] 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, a limit groove penetrating the non-free end of the upper guide rod is opened along the length direction of the upper guide rod, an elastic part is arranged in the limit groove, the limit rod is slidably inserted in the limit groove and abuts against the elastic part.

[0010] 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 the lower mounting plate and the upper mounting plate are both provided with a through groove for accommodating the rolling wheel and a mounting groove for accommodating the rotating shaft of the rolling wheel.

[0011] 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; The upper mounting plate is provided with an upper through groove corresponding to the lower through groove, upper connecting blocks are arranged on both sides of the upper through groove, an upper mounting groove corresponding to the lower mounting groove is provided on the upper connecting block, the rotating shaft of the rolling wheel is installed in the upper mounting groove and the lower mounting groove, and the top of the rolling wheel extends out of the top surface of the upper mounting plate.

[0012] 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; 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.

[0013] 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.

[0014] 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.

[0015] A detection method for a continuous temperature detection device along a pipeline, comprising the following steps: 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.

[0016] The present invention adopts the above technical solution, which has the following advantages: 1. The present invention places a continuous temperature detection device in the pipeline, and runs along the axis of the pipeline under the pressure difference of the pipeline medium, so as to directly detect the temperature distribution trend along the pipeline, which is used for a detailed analysis of the safe operation status of the pipeline.

[0017] 2. The present invention can directly detect the real temperature of each position inside the pipeline, thereby generating the temperature distribution trend along the pipeline, and can analyze the influence of factors such as flow friction of the medium along the pipeline on the temperature of the medium in the pipeline according to the real temperature distribution, accurately analyze the heat transfer state of the pipeline and the flowing medium and the surrounding environment, and can finely analyze the temperature field changes along the pipeline and find abnormal changes according to the heat transfer state, analyze the causes of abnormal pipe sections with excessive temperature drop along the pipeline and take suppressive measures or conduct on-site inspection and maintenance, identify and accurately manage adverse environmental factors such as poor insulation, abnormal heat transfer or insufficient burial depth, excessive water content in the soil environment caused by existing pipeline body defects, reduce heat loss of the entire pipeline, reduce energy consumption of pipeline heating and transportation fuel, achieve energy saving, and reduce carbon dinitride (CO2), nitrogen oxides (NOx) and volatile organic compounds (VOCs) emissions caused by the combustion of heating fuel, provide more accurate data technology support for the fine operation and maintenance management of pipeline safe operation, further improve pipeline integrity and reliability, reduce environmental pollution, and improve pipeline safety, economic operation and intelligent management and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a device for continuous temperature detection along a pipeline provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the guide bracket provided in this embodiment of the present invention; Figure 3 A schematic diagram of the structure of the lower bracket provided in this embodiment of the present invention; Figure 4 A schematic diagram of an upper bracket provided in this embodiment of the present invention; Figure 5 A cross-sectional schematic diagram of the guide bracket provided in this embodiment of the present invention; Figure 6 A schematic diagram of the exploded structure of the upper bracket provided in this embodiment of the present invention; Figure 7 A trend diagram of temperature detection in a pipeline according to the prior art; Figure 8 A trend diagram of temperature detection in a pipeline according to an embodiment of the present invention; Fig. 9 A trend diagram of temperature detection in another pipeline using the prior art; Fig.10 A trend diagram of temperature detection in another pipeline according to another embodiment of the present invention; The reference numerals in the figures are as follows: 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

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0020] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills 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" and the like mean that the elements or objects appearing before 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" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0021] 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", "below", "above", etc. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures.

[0022] In the traditional mode, a pipeline valve room is often set up at a certain distance (usually tens of kilometers) along the pipeline, and a temperature sensor is installed to collect the temperature at a specific point of the pipeline. Then, the temperature collected at each detection point along the pipeline is used to calculate the temperature distribution trend along the pipeline through pipeline working condition simulation technology, which is used to analyze the safe operation status of the pipeline. This solution cannot feedback the real temperature distribution trend at each position inside the pipeline, cannot analyze the influence of factors such as flow friction resistance of the medium along the pipeline on the temperature of the medium in the pipeline based on the real temperature distribution, cannot accurately analyze the heat transfer state between the pipeline and the flowing medium and the surrounding environment, cannot finely analyze the temperature field changes along the pipeline based on the heat transfer state and find abnormal changes, cannot accurately check the pipe section with excessive temperature loss and provide a basis for maintenance, which is not conducive to comprehensive energy conservation, emission reduction and environmental pollution reduction of the pipeline system, and is not conducive to reducing fuel consumption, reducing carbon nitride (CO2), nitrogen oxides (NOx) and volatile organic compounds (VOCs) emissions, analyzing the causes and taking corresponding measures, and is not conducive to strengthening and refining pipeline integrity management.

[0023] Based on the above technical problems, the present invention provides a device and method for continuous temperature detection along a pipeline. The device places a continuous temperature detection device in the pipeline, and runs along the axis of the pipeline under the pressure difference of the pipeline medium. It can directly detect the temperature distribution trend along the pipeline, which is used for detailed analysis of the safe operation status of the pipeline.

[0024] like Figure 1 As shown, the device for continuous temperature detection along the pipeline involved in the present invention comprises: a through shaft 1, a front leather cup 2 is arranged at the front end of the through shaft 1, and a rear leather cup 3 is arranged 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, a circumferential surface of the connecting sleeve 4 is evenly provided with a plurality of guide brackets 5 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 comprises an angle sensor for detecting the rotation angle of the rolling wheel 6, and a temperature sensor 7 is also arranged on the through shaft 1.

[0025] Furthermore, if Figure 2 , Figure 3 As 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, and a lower guide rod 11 is arranged at both ends of the bottom rod 10. The upper bracket 9 includes two upper guide rods 12 slidably connected to the surface of one side of the lower guide rod 11. A guide groove 13 is opened on one side of the lower guide rod 11 along its length direction. A guide block 14 sliding in the guide groove 13 is arranged on one side of the upper guide rod 12. A mounting member for mounting the rolling wheel 6 is arranged 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.

[0026] Furthermore, if Figure 5 As shown, the upper guide rod 12 is provided with a limit groove 15 penetrating through the bottom end thereof along its length direction, and the control member includes two limit rods 16 arranged on the surface of the bottom rod 10, the limit rods 16 are inserted and slidably connected in the limit groove 15, and a spring 17 is fixedly connected between the inner wall of the end of the limit groove 15 and the limit rod 16. Under the elastic force of the spring 17, the rolling wheel 6 is pressed against the inner wall of the pipeline, so that the detection device can move smoothly in the pipeline, and the rolling wheel 6 can roll along the inner wall of the pipeline, and the rotation angle of the rolling wheel 6 is detected by the angle sensor, and the distance of the circumferential rolling of the rolling wheel 6 is calculated according to the radius of the rolling wheel 6 and the angle of rotation, so as to obtain the movement distance of the detection device, so that the movement distance of the detection device can be detected in real time, and the temperature of each position in each pipeline is detected by the temperature sensor 7.

[0027] 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.

[0028] Furthermore, if Figure 6 As shown, the mounting member 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, lower connecting blocks 21 are provided on the surface of the lower mounting plate 18 on both sides of the lower through slot 20, a semicircular lower mounting slot 22 is provided on the surface of the lower connecting block 21, an upper through slot 23 corresponding to the lower through slot 20 is provided on the upper mounting plate 19, upper connecting blocks 24 are provided on the lower surface of the upper mounting plate 19 on both sides of the upper through slot 23, an upper mounting slot 25 matched with the lower mounting slot 22 is provided on the lower surface of the upper connecting block 24, a rotating shaft of the rolling wheel 6 is installed in the upper mounting slot 25 and the lower mounting slot 22, an angle sensor is installed in the upper mounting slot 25 and the lower mounting slot 22, the top of the rolling 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.

[0029] Furthermore, if Figure 6As 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 one side of the front leather cup 2 and a second inclined surface 28 perpendicular to the first inclined surface 27, and 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, and a first positioning hole 31 for inserting the positioning rod 29 is provided on the fixing block 30, and a fixing plate 32 placed in the groove 26 and attached to the upper surface of 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 provided on the fixing plate 32.

[0030] The lower mounting plate 18 is provided with an abutting block 34 abutting against the top of the other upper guide rod 12 at the other end of the fixing block 30, one end of the upper mounting plate 19 abuts against the surface of the abutting block 34, the abutting block 34 and the mounting plate are provided with corresponding first screw holes 35, and the top of the upper guide rod 12 is provided with a first threaded hole 36 matched with the first screw hole 35. The positioning member is specifically a first bolt (not shown in the figure) provided in the first screw hole 35 and the first threaded hole 36.

[0031] 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 in 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.

[0032] An extension portion 37 is provided at the top of one of the upper guide rods 12 and extends toward one side of the rear leather cup 3. The upper mounting plate 19, the abutment block 34 and the extension portion 37 are provided with corresponding second screw holes 38. A second threaded hole 39 that matches the second screw hole 38 is provided at the top of one of the lower guide rods 11. 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, so that normal detection work can be performed.

[0033] 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 condition of each position in the pipeline is continuously and real-time detected by the temperature sensor 7, so as to timely correct the pipeline simulation result, which is convenient for the later maintenance of the pipeline.

[0034] like Figure 7 , Fig. 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, so as to infer the temperature conditions at various locations in the pipeline. Figure 8 , Fig.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 of each position in the pipeline, thereby being able to accurately express the temperature conditions of each position in the pipeline.

[0035] 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 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 of the connecting piece is provided with a rear leather cup (3); A connecting sleeve (4), sleeved on the connecting piece and located between the front leather cup (2) and the rear leather cup (3); A plurality of guide brackets (5), the plurality of guide brackets (5) being evenly distributed along the circumferential direction of the connecting sleeve (4), and a rolling wheel (6) and an angle sensor being provided at the free end of each guide bracket (5); A temperature sensor (7) is also provided on the connecting piece.

2. The device for continuous temperature detection along the pipeline according to claim 1 is characterized in that: 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).

3. The device for continuous temperature detection along the pipeline according to claim 2 is characterized in that: 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), and a guide block (14) is arranged on the upper guide rod (12). The guide block (14) is slidably arranged in the guide groove (13). A mounting member for mounting the rolling wheel (6) and a control member for controlling the lifting and lowering of the upper bracket (9) are arranged between the free ends of the two upper guide rods (12).

4. The device for continuous temperature detection along the pipeline according to claim 3 is characterized in that: The control member comprises two limit rods (16) which are arranged on the bottom rod (10) and parallel to the lower guide rod (11); a limit 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 limit groove (15); the limit rod (16) is slidably inserted in the limit groove (15) and abuts against the elastic member.

5. The device for continuous temperature detection along the pipeline according to claim 4 is characterized in that: The mounting member comprises a lower mounting plate (18) and an upper mounting plate (19) which are detachably connected, and the lower mounting plate (18) and the upper mounting plate (19) are both provided with a through slot for accommodating the rolling wheel (6) and a mounting slot for accommodating the rotating shaft of the rolling wheel (6).

6. The device for continuous temperature detection along the pipeline according to claim 5 is characterized in that: The lower mounting plate (18) is provided with a lower through slot (20), lower connecting blocks (21) are provided on both sides of the lower through slot (20), and the lower connecting block (21) is provided with a lower mounting slot (22); An upper through slot (23) corresponding to the lower through slot (20) is formed on the upper mounting plate (19); upper connecting blocks (24) are provided on both sides of the upper through slot (23); an upper mounting slot (25) corresponding to the lower mounting slot (22) is formed on the upper connecting block (24); a rotating shaft of the rolling wheel (6) is mounted in the upper mounting slot (25) and the lower mounting slot (22); and a top of the rolling wheel (6) protrudes from a top surface of the upper mounting plate (19).

7. The device for continuous temperature detection along the pipeline according to claim 6 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) close to 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) matched with the groove (26) is disposed at one end of the lower mounting plate (18), and a first positioning hole (31) is provided on the fixing block (30) for inserting the positioning rod (29). A fixing plate (32) matched with the groove (26) and attached to the fixing block (30) is disposed at the end of the upper mounting plate (19), and a second positioning hole (33) is also provided on the fixing plate (32) for inserting the positioning rod (29).

8. The device for continuous temperature detection along the pipeline according to claim 7 is characterized in that: The other end of the lower mounting plate (18) is provided with an abutment block (34) abutting against the upper guide rod (12), one end of the upper mounting plate (19) abuts against the abutment block (34), and the upper guide rod (12), the abutment block (34) and the upper mounting plate (19) are fastened and connected by bolts.

9. The device for continuous temperature detection along the pipeline according to claim 8, 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.

10. A detection method for a continuous temperature detection device along a pipeline according to any one of claims 1 to 9, 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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