Device for identifying physical state of slurry in pipeline based on acoustic method

Abstract

The utility model relates to a device for identifying the physical state of slurry in a pipeline based on an acoustic method, which is characterized in that an arched top cover (4) is designed to cover a slurry conveying pipe (1), a plurality of groups of sliding devices are designed on the inner surface of the arched top cover (4), and a plurality of groups of walking devices are designed on the edges of the two sides of the arched top cover (4). A sound wave detection transmitter (2) is carried on the inner surface of an arched top cover (4), a sound wave detection receiver (3) is in contact with the outer surface of a slurry conveying pipe (1), and the physical state of slurry passing through each section of the slurry conveying pipe (1) is identified along with the movement of the arched top cover (4) along the slurry conveying pipe (1); the scheme design is convenient and fast in actual application, the problems that when grouting blockage occurs in the existing shield tunnel construction process, a pipeline needs to be disassembled for inspection and cleaning, and time and labor are consumed are solved, and the working efficiency of actual slurry conveying operation is effectively improved.

Description

Technical Field

[0001] The utility model relates to a device for identifying the physical state of slurry inside a pipeline based on an acoustic method, and belongs to the technical field of slurry solidification state detection. Background Art

[0002] With socioeconomic development, my country's urbanization is accelerating, and transportation demand is increasing. As a key component of urban rail transit, subways can effectively alleviate traffic pressure. Shield tunneling is a common method for constructing subway tunnels. This method operates underground, has the advantages of not impacting surface traffic, low noise levels, and high efficiency. However, during shield tunneling, as the shield machine advances, gaps between the segments and the soil form, causing surface deformation, ground loss, and tunnel subsidence. Therefore, grouting behind the segments is necessary to fill these gaps and compensate for ground loss. However, some shield tunnels are large and long, and the slurry preparation area is located far from the shield machine. This can cause the physical state of the slurry inside the slurry pipeline to change during transportation. Before reaching the grouting point, the slurry can solidify and clog the pipeline, compromising the grouting effect and even causing the grouting pipe to burst, seriously impacting construction quality and progress.

[0003] Since the slurry is transported inside the pipeline, when a blockage occurs, it is impossible to directly determine the location of the blockage from the outside. The current solution is to dismantle each section of the pipeline for inspection, identify the blocked slurry pipe, clean it, and then reinstall it to resume grouting. This process is complex, time-consuming, and labor-intensive, significantly affecting the progress and quality of the project. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for identifying the physical state of slurry inside a pipeline based on an acoustic method. The device has a simple structure and is easy to use. It aims to solve the problem that when grouting blockage occurs during the construction of existing shield tunnels, each section of the pipeline needs to be disassembled for inspection and cleaning, which is time-consuming and labor-intensive.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: the present invention designs a device for identifying the physical state of slurry inside a pipeline based on an acoustic method, which is used to identify the physical state of slurry inside a slurry pipe; it includes an acoustic detection transmitter, an acoustic detection receiver, an arched top cover, a processor, and two groups of support systems, wherein the arched top cover is in a straight line along a direction perpendicular to its arched cross section, and its two ends along the straight line are open and connected to each other; the arched top cover is arranged on the slurry pipe in such a way that its two side edges are located on both sides of the slurry pipe; based on defining the two end positions of the outer surface of the slurry pipe corresponding to the horizontal diameter of its cross-sectional circle as detection positions, the basic structure of each group of support systems is as follows: The seat ends are respectively arranged at two positions corresponding to the two detection positions on the inner surface of the arch top cover and the outer surface of the slurry pipe, and the front end connection line of each group of support systems is parallel to the horizontal diameter of the circular cross-section of the slurry pipe. The acoustic wave detection transmitter and the acoustic wave detection receiver are respectively connected to the front ends of the two groups of support systems, and the working end face of the acoustic wave detection transmitter and the working end face of the acoustic wave detection receiver are respectively in contact with the detection positions on the outer surface of the slurry pipe facing them. The acoustic wave detection transmitter and the acoustic wave detection receiver are respectively connected to the processor through cable communication. Based on the sound waves emitted by the acoustic wave detection transmitter passing through the slurry pipe and being received by the acoustic wave detection receiver, the physical state of the slurry inside the slurry pipe is identified.

[0006] As an optimal technical solution of the present invention: the structures of the support systems are the same as each other, and each support system includes a ball joint, a first spring hose, and a straight support. In the structure of each support system, the first spring hose is a telescopic structure along a straight line, one end of the straight support constitutes the base end of the support system, and the other end of the straight support is connected to one end of the first spring hose along its straight structure, and the other end of the first spring hose along its straight structure is connected to the base end of the ball joint, and the movable end of the ball joint constitutes the front end of the support system.

[0007] As an optimal technical solution of the present invention: each of the support systems also includes an oblique brace, each oblique brace is located on the inner side of the arched top cover and below the corresponding straight brace, one end of each oblique brace is connected to the bottom side of the end of the corresponding straight brace connected to the first spring hose, and the other end of each oblique brace is connected to the inner surface of the arched top cover, at a position lower than the end connected to the corresponding straight brace, so that each oblique brace provides structural support for the corresponding straight brace to which it is connected.

[0008] As a preferred technical solution of the present invention: it also includes at least two groups of sliding devices, each group of sliding devices includes two sub-sliding mechanisms, the structures of each sub-sliding mechanism in each sliding device are the same, each sub-sliding mechanism includes a fixing bolt, a mounting seat, a second spring hose, and a support wheel. In the structure of each sub-sliding mechanism, the second spring hose is a telescopic structure along a straight line, the base end of the mounting seat constitutes the base end of the sub-sliding mechanism, the front end of the mounting seat is connected to one end of the second spring hose along its straight line structure, and the other end of the second spring hose along its straight line structure is connected to the support wheel; each group of sliding devices is distributed in sequence along the straight line direction of the arch top cover, and the base ends of the two sub-sliding mechanisms in each group of sliding devices are respectively arranged in the arch top cover through corresponding fixing bolts. The surface corresponds to its distribution position and the position on both sides of the symmetry axis of the arch top cover section. The height of the two sub-sliding mechanisms in each group of sliding devices is higher than the height of the support system on the same side, and the height of all sub-sliding mechanisms is the same. The rotation position of the support wheel in each sub-sliding mechanism is respectively in contact with and rotated at the position facing the outer surface of the slurry pipe, and the direction of the moving path of the rotation of the support wheel in each sub-sliding mechanism is parallel to the straight line direction of the arch top cover. The two sub-sliding mechanisms in each group of sliding devices are axially symmetrically distributed compared to the symmetry axis of the same section of the arch top cover. Based on the arch top cover moving with the sliding of each group of sliding devices along the outer surface of the slurry pipe, the acoustic wave detection transmitter and the acoustic wave detection receiver work to identify the physical state of the slurry inside each section of the slurry pipe passed through.

[0009] As a preferred technical solution of the utility model: it also includes two linear bases and at least two groups of walking devices, wherein the length of each base is equal to the length of the two sides of the arched top cover, and the top surfaces of the two bases are connected along the bottom of the two side edges of the arched top cover; each group of walking devices includes two sub-walking mechanisms, and the structures of each sub-walking mechanism in each walking device are the same. Each sub-walking mechanism includes a walking wheel and two third spring hoses. In the structure of each sub-walking mechanism, each third spring hose is a linearly retractable structure, and one end of each third spring hose is connected to the two ends of the bearing on the walking wheel, and the two third spring hoses are parallel to each other. ; Each group of walking devices is distributed in sequence along the straight direction of the arch top cover, and the two sub-walking mechanisms in each group of walking devices are respectively arranged at the corresponding positions of the bottom surface of the base connected to the edges of both sides of the arch top cover. The two sub-walking mechanisms in each group of walking devices are in the same cross-section of the arch top cover, and the other end of each third spring hose in each sub-walking mechanism is connected to the position of the bottom surface of the base where it is set; the moving path direction of the walking wheels in each sub-walking mechanism is parallel to the straight direction of the arch top cover; the arch top cover moves with the movement of the two walking wheels in each group of walking devices on both sides of the slurry pipe, and the acoustic wave detection transmitter and the acoustic wave detection receiver work to identify the physical state of the slurry inside each section of the slurry pipe passed through.

[0010] As a preferred technical solution of the present invention: it also includes a handrail rod, a connecting rod, two telescopic rods, and four oblique rods, wherein the two telescopic rods are both telescopic structures of sleeve tubes and have the same size as each other, and one end of each telescopic rod in the same direction is respectively connected to the midpoint position of the outer surface of the arched top cover along its straight line direction, and the positions of the outer surface of the arched top cover to which the two telescopic rods are respectively connected are distributed at the same distance on both sides of the midline between the two side edges of the outer surface of the arched top cover, and the two telescopic rods are both in a vertical posture; the two ends of the handrail rod are respectively connected to the top of the highest position section on the two telescopic rods, and the handrail rod is perpendicular to each telescopic rod, and the two ends of the connecting rod are respectively connected to the two The same height position of the lowest section of the four telescopic rods, the connecting rod is perpendicular to each telescopic rod; the four oblique rods are the same length, and the four oblique rods are divided into two groups, each group corresponds to two telescopic rods one by one, the two telescopic rods in each group are respectively located on the front and rear sides of the corresponding telescopic rod along the straight direction of the arched top cover, one end of the two oblique rods in each group is respectively connected to the side position at the same height and on the same side of the lowest section of the corresponding telescopic rod, the other end of the two oblique rods in each group is respectively connected to the outer surface of the arched top cover, the two oblique rods in each group are coplanar with the corresponding telescopic rod, and the positions where the corresponding oblique rods are connected on the lowest section of the two telescopic rods are at the same height.

[0011] As a preferred technical solution of the present invention: the linearly retractable structure includes a flexible sleeve and a spring built into the flexible sleeve, and both ends of the spring are respectively connected to the same-side ends of the flexible sleeve.

[0012] As a preferred technical solution of the present invention: the processor is arranged on the top of the inner surface of the arched top cover.

[0013] The device for identifying the physical state of slurry inside a pipeline based on an acoustic method described in the present invention has the following technical effects compared with the prior art by adopting the above technical solution:

[0014] The utility model designs a device for identifying the physical state of slurry inside a pipeline based on an acoustic method. A slurry pipe is covered with an arched top cover, multiple sets of sliding devices are designed in combination with the inner surface of the arched top cover, and multiple sets of walking devices are designed on the edges of both sides of the arched top cover. An acoustic wave detection transmitter and an acoustic wave detection receiver are carried on the inner surface of the arched top cover to contact the outer surface of the slurry pipe. As the arched top cover moves along the slurry pipe, the physical state of the slurry inside each section of the slurry pipe passed through is identified. The scheme design is convenient and fast in actual application, and solves the problem that when grouting blockage occurs during the existing shield tunnel construction process, the pipeline needs to be disassembled for inspection and cleaning, which is time-consuming and labor-intensive, and effectively improves the work efficiency of the actual slurry delivery operation.

[0015] The utility model designs a device for identifying the physical state of slurry inside a pipeline based on an acoustic method. On the surface of the arched top cover, a handrail rod, a connecting rod, a telescopic rod, and an inclined rod are combined and designed. Combined with multiple sets of walking devices, the device can be pushed by manpower to any position of the slurry pipe. The structure is simple and reasonable, and it is easy to use. In addition, a third spring hose is designed to be used in combination with walking wheels for the walking device, so that the walking devices are respectively provided on both sides of the arched top cover to be applicable to uneven terrain, and also realize efficient identification of the physical state of the slurry inside the slurry pipe.

[0016] The utility model designs a device for identifying the physical state of slurry inside a pipeline based on an acoustic method. A sound wave detection transmitter and a sound wave detection receiver are respectively arranged on the inner surface of the arched top cover by using a ball joint and a first spring hose connection method, and fit tightly with the surface of the slurry pipe. This can ensure that the sound waves propagate inside the slurry pipe, improve the accuracy of detection, and enable the device to be applied to slurry pipes of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side view schematic diagram of the device for identifying the physical state of slurry inside a pipeline designed in the present invention;

[0018] Figure 2 This utility model is a device for identifying the physical state of slurry inside a pipeline. Figure 1 Schematic cross-sectional view of AA in the figure;

[0019] Figure 3 This utility model is a device for identifying the physical state of slurry inside a pipeline. Figure 2 Schematic cross-sectional view of the middle BB;

[0020] Figure 4 This utility model is a device for identifying the physical state of slurry inside a pipeline. Figure 2 Schematic cross-sectional view of CC;

[0021] Figure 5 This is a top view schematic diagram of the device for identifying the physical state of slurry inside a pipeline designed in the present invention;

[0022] Figure 6 This is a schematic diagram of the application of the device for identifying the physical state of slurry inside a pipeline designed by the utility model.

[0023] Among them, 1. slurry pipe; 2. acoustic wave detection transmitter; 3. acoustic wave detection receiver; 4. arched top cover; 5. processor; 6. cable; 7. ball joint; 8. first spring hose; 9. straight support; 10. diagonal support; 11. fixing bolt; 12. mounting base; 13. second spring hose; 14. support wheel; 15. base; 16. travel wheel; 17. third spring hose; 18. handrail; 19. connecting rod; 20. telescopic rod; 21. diagonal rod; 22. slurry; 23. formation; 24. slurry storage tank; 25. slurry suction pipe; 26. grouting pump. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The utility model designs a device for identifying the physical state of slurry inside a pipeline based on an acoustic method, which is used to identify the physical state of the slurry inside a slurry pipe 1; in practical applications, such as Figure 1 and Figure 2 As shown, the design includes an acoustic wave detection transmitter 2, an acoustic wave detection receiver 3, an arched top cover 4, a processor 5, and two groups of support systems, wherein the arched top cover 4 is in a straight line along a direction perpendicular to its arched cross-section, and both ends along the straight line are open and communicate with each other; the arched top cover 4 is arranged on the slurry pipe 1 in such a way that its two side edges are located on both sides of the slurry pipe 1; based on the definition that the two end positions of the outer surface of the slurry pipe 1 corresponding to the horizontal diameter of its cross-sectional circle are detection positions, the base ends of each group of support systems are respectively arranged at two positions corresponding to the two detection positions on the inner surface of the arched top cover 4 and the outer surface of the slurry pipe 1, and each The front end connection line of the group support system is parallel to the horizontal diameter of the circular cross-section of the slurry pipe 1. The acoustic wave detection transmitter 2 and the acoustic wave detection receiver 3 are respectively connected to the front ends of the two groups of support systems, and the working end face of the acoustic wave detection transmitter 2 and the working end face of the acoustic wave detection receiver 3 are respectively in contact with the detection position of the outer surface of the slurry pipe 1 facing them. The acoustic wave detection transmitter 2 and the acoustic wave detection receiver 3 are respectively connected to the processor 5 through the cable 6 for communication. Based on the sound wave emitted by the acoustic wave detection transmitter 2 passing through the slurry pipe 1 and being received by the acoustic wave detection receiver 3, the physical state of the slurry inside the slurry pipe 1 is identified.

[0026] Regarding the design of the arched top cover 4 with the acoustic wave detection transmitter 2 and the acoustic wave detection receiver 3, in a further specific design scheme, the structures of the supporting systems are designed to be the same as each other, such as Figure 2 and Figure 3As shown, each support system is specifically designed to include a ball joint 7, a first spring hose 8, a straight support 9, and an oblique support 10. In the structure of each support system, the first spring hose 8 is a telescopic structure along a straight line, one end of the straight support 9 constitutes the base end of the support system, the other end of the straight support 9 is connected to one end of the first spring hose 8 along its straight structure, the other end of the first spring hose 8 along its straight structure is connected to the base end of the ball joint 7, and the movable end of the ball joint 7 constitutes the front end of the support system; in the structure of each support system, each oblique support 10 is respectively located on the inner side of the arched top cover 4 and below the corresponding straight support 9, one end of each oblique support 10 is respectively connected to the bottom side of the end of the corresponding straight support 9 connected to the first spring hose 8, and the other end of each oblique support 10 is respectively connected to the inner surface of the arched top cover 4, below the position of the end connected to the corresponding straight support 9, and each oblique support 10 provides structural support for the corresponding straight support 9 to which it is connected. In this way, in application, the sound wave detection transmitter 2 and the sound wave detection receiver 3 are respectively arranged on the inner surface of the arch top cover 4 by using the connection method of the ball joint 7 and the first spring hose 8, and are tightly fitted with the surface of the slurry pipe 1, which can ensure that the sound waves propagate inside the slurry pipe 1, improve the accuracy of detection, and enable the device to be applied to slurry pipes 1 of different specifications.

[0027] In order to achieve the purpose of moving the arched top cover 4 along the slurry pipe 1, a sliding device is further designed for the arched top cover 4 to slide along the surface of the slurry pipe 1 and support the arched top cover 4. In actual application, Figure 2 and Figure 4As shown, the specific design also includes at least two groups of sliding devices, each group of sliding devices includes two sub-sliding mechanisms, and the structures of the sub-sliding mechanisms in each sliding device are the same. Each sub-sliding mechanism includes a fixing bolt 11, a mounting seat 12, a second spring hose 13, and a support wheel 14. In the structure of each sub-sliding mechanism, the second spring hose 13 is a telescopic structure along a straight line, and the base end of the mounting seat 12 constitutes the base end of the sub-sliding mechanism. The front end of the mounting seat 12 is connected to one end of the second spring hose 13 along its straight line structure, and the other end of the second spring hose 13 along its straight line structure is connected to the support wheel 14; each group of sliding devices is distributed in sequence along the straight line direction of the arched top cover 4, and the base ends of the two sub-sliding mechanisms in each group of sliding devices are respectively set on the arched top cover 4 through corresponding fixing bolts 11. The inner surface corresponds to its distribution position and the position on both sides of the symmetry axis of the arched top cover 4. The height of the two sub-sliding mechanisms in each group of sliding devices is higher than the height of the support system on the same side, and the height of all sub-sliding mechanisms is the same. The rotation position of the support wheel 14 in each sub-sliding mechanism is respectively in contact with and rotated at the position facing the outer surface of the slurry pipe 1, and the direction of the moving path of the support wheel 14 in each sub-sliding mechanism is parallel to the straight line direction of the arched top cover 4. The two sub-sliding mechanisms in each group of sliding devices are axially symmetrically distributed compared to the symmetry axis of the same cross-section of the arched top cover 4. Based on the movement of the arched top cover 4 along the sliding of the outer surface of the slurry pipe 1 with each group of sliding devices, the acoustic wave detection transmitter 2 and the acoustic wave detection receiver 3 work to identify the physical state of the slurry inside each section of the slurry pipe 1 passed through.

[0028] The purpose of the arched top cover 4 moving along the slurry pipe 1 is to Figure 1 and Figure 2As shown, the design further adds two linear bases 15 and at least two groups of walking devices, wherein the length of each base 15 is equal to the length of the two sides of the arched top cover 4, and the top surfaces of the two bases 15 are connected along the bottom of the two side edges of the arched top cover 4; each group of walking devices includes two sub-walking mechanisms, and the structures of the sub-walking mechanisms in each walking device are the same. Each sub-walking mechanism includes a walking wheel 16 and two third spring hoses 17. In the structure of each sub-walking mechanism, each third spring hose 17 is a linearly retractable structure, one end of each third spring hose 17 is connected to the two ends of the bearing on the walking wheel 16, and the two third spring hoses 17 are parallel to each other; each group of walking devices is distributed in sequence along the straight direction of the arched top cover 4, and the two sub-walking mechanisms in each group of walking devices are respectively arranged at The bottom surfaces of the bases 15 connected to the two side edges of the arched top cover 4 correspond to their distribution positions, and the two sub-walking mechanisms in each group of walking devices are in the same cross-section of the arched top cover 4, and the other end of each third spring hose 17 in each sub-walking mechanism is connected to the position of the bottom surface of the base 15 where it is set; the direction of the moving path where the walking wheels 16 in each sub-walking mechanism rotate is parallel to the straight line direction of the arched top cover 4; the arched top cover 4 moves with the walking of the two walking wheels 16 in each group of walking devices on both sides of the slurry pipe 1, and the acoustic wave detection transmitter 2 and the acoustic wave detection receiver 3 work to identify the physical state of the slurry inside each section of the slurry pipe 1 passed through; the third spring hose 17 is designed in this way and used in combination with the walking wheels 16, so that the walking devices on both sides of the arched top cover 4 can be used for uneven terrain, and also realize efficient identification of the physical state of the slurry inside the slurry pipe 1.

[0029] In addition, in the actual implementation process of the present utility model, if Figure 1 、 Figure 2 、 Figure 5As shown, a handrail rod 18, a connecting rod 19, two telescopic rods 20, and four oblique rods 21 are further designed to be added, wherein the two telescopic rods 20 are both telescopic structures of a sleeve and have the same size as each other. One end of each telescopic rod 20 in the same direction is respectively connected to the midpoint position of the outer surface of the arched top cover 4 along its straight line direction, and the positions of the outer surfaces of the arched top cover 4 connected to the two telescopic rods 20 are distributed at the same distance on both sides of the midline between the two side edges of the outer surface of the arched top cover 4, and the two telescopic rods 20 are both in a vertical posture; the two ends of the handrail rod 18 are respectively connected to the top of the highest position segment of the two telescopic rods 20, and the handrail rod 18 is perpendicular to each telescopic rod 20, the two ends of the connecting rod 19 are respectively connected to the same height position of the lowest position segment of the two telescopic rods 20, and the connecting rod 19 is connected to each telescopic rod 2 0 are perpendicular to each other; the lengths of the four oblique rods 21 are the same, and the four oblique rods 21 are equally divided into two groups, each group corresponding one to one between the two telescopic rods 20, and the two telescopic rods 20 in each group are respectively located on the front and rear sides of the corresponding telescopic rod 20 along the straight line direction of the arched top cover 4, and one end of the two oblique rods 21 in each group is respectively connected to the side position at the same height and the same side on the lowest position segment of the corresponding telescopic rod 20, and the other ends of the two oblique rods 21 in each group are respectively connected to the outer surface of the arched top cover 4, and the two oblique rods 21 in each group are coplanar with the corresponding telescopic rod 20, and the positions of the corresponding oblique rods 21 on the lowest position segment of the two telescopic rods 20 are connected to the same height as each other; such a design, combined with the designed multiple groups of walking devices, can push the device to reach any position of the slurry pipe 1 by manpower, and the structure is simple and reasonable, and easy to use.

[0030] The above-mentioned device for identifying the physical state of slurry inside a pipeline is applied in practice. The linearly retractable structure includes a flexible sleeve and a spring built into the flexible sleeve, and the two ends of the spring are respectively connected to the same-side ends of the flexible sleeve; and the processor 5 is set at the top of the inner surface of the arched top cover 4. In actual implementation, Figure 6As shown, during the grouting process behind the shield tunnel wall, specifically, after the slurry 22 in the slurry storage tank 24 reaches the grouting pump 26 through the slurry suction pipe 25, it is pressed into the slurry delivery pipe 1 and transported to the front grouting area. When the slurry delivery pipe 1 is blocked or the slurry output is too small, the design device of the utility model is placed directly above the slurry delivery pipe 1, and the length of the first spring hose 8 and the angle of the head of the ball joint 7 are adjusted so that the acoustic wave detection transmitter 2 and the acoustic wave detection receiver 3 fit tightly with the surface of the slurry delivery pipe 1 without leaving any gaps. The length of the second spring hose 13 is adjusted so that the support wheel 14 fits with the surface of the slurry delivery pipe 1, ensuring that the entire design device can slide in a straight line along the slurry delivery pipe 1 without deflection. The length of the telescopic rod 20 is changed so that the handrail 18 reaches a suitable height that is easy to push. Turn on the acoustic wave detection transmitter 2 and the acoustic wave detection receiver 3, the acoustic wave detection transmitter 2 works to emit sound waves, the acoustic wave detection receiver 3 receives sound waves, and the propagation speed of the sound waves in the slurry 22 in the slurry delivery pipe 1 is measured. Push the handrail 18 to make the entire design device slide forward along the slurry pipe 1, and record the propagation speed of the sound wave in the slurry 22 at different positions in the slurry pipe 1 through the processor 5, draw a displacement-wave speed change curve, and compare the speed of the sound wave measured at different positions. The place with the highest sound wave speed is the blockage position of the slurry pipe 1.

[0031] The device for identifying the physical state of slurry inside a pipeline designed in the above technical scheme is designed to cover a slurry pipe 1 with an arched top cover 4, and multiple sets of sliding devices are designed in combination with the inner surface of the arched top cover 4, as well as multiple sets of walking devices are designed on the edges of both sides of the arched top cover 4. The inner surface of the arched top cover 4 is equipped with an acoustic wave detection transmitter 2 and an acoustic wave detection receiver 3 to contact the outer surface of the slurry pipe 1. As the arched top cover 4 moves along the slurry pipe 1, the physical state of the slurry inside each section of the slurry pipe 1 passed through is identified. The scheme design is convenient and fast in actual application, and solves the problem that when grouting blockage occurs during the existing shield tunnel construction, the pipeline needs to be disassembled for inspection and cleaning, which is time-consuming and labor-intensive, and effectively improves the work efficiency of the actual slurrying operation.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A device for identifying the physical state of slurry inside a pipeline based on an acoustic method, for identifying the physical state of slurry inside a slurry pipe (1); characterized in that: The invention comprises an acoustic wave detection transmitter (2), an acoustic wave detection receiver (3), an arched top cover (4), a processor (5), and two groups of support systems, wherein the arched top cover (4) is in a straight line direction along a direction perpendicular to its arched cross section, and both ends along the straight line direction are open and connected to each other; the arched top cover (4) is arranged on the slurry delivery pipe (1) in such a way that its two side edges are located on both sides of the slurry delivery pipe (1); based on the definition that the two end positions of the outer surface of the slurry delivery pipe (1) corresponding to the diameter of its cross-sectional circle along the horizontal direction are detection positions, the base ends of each group of support systems are respectively arranged at two positions corresponding to the two detection positions on the inner surface of the arched top cover (4) and the outer surface of the slurry delivery pipe (1), and each group of support systems The front end connection line is parallel to the horizontal diameter of the cross-sectional circular shape of the slurry delivery pipe (1), the acoustic wave detection transmitter (2) and the acoustic wave detection receiver (3) are respectively connected to the front ends of the two groups of support systems, and the working end surface of the acoustic wave detection transmitter (2) and the working end surface of the acoustic wave detection receiver (3) are respectively in contact with the detection position of the outer surface of the slurry delivery pipe (1) they face, the acoustic wave detection transmitter (2) and the acoustic wave detection receiver (3) are respectively connected to the processor (5) through the cable (6), and the physical state of the slurry inside the slurry delivery pipe (1) is recognized based on the acoustic wave detection transmitter (2) sending the sound wave through the slurry delivery pipe (1) and being received by the acoustic wave detection receiver (3).

2. The device for identifying the physical state of slurry inside a pipeline based on an acoustic method according to claim 1, characterized in that: The structures of the support systems are identical to each other. Each support system comprises a ball joint (7), a first spring hose (8), and a straight support (9). In the structure of each support system, the first spring hose (8) is a telescopic structure along a straight line, one end of the straight support (9) constitutes the base end of the support system, the other end of the straight support (9) is connected to one end of the first spring hose (8) along its straight line structure, the other end of the first spring hose (8) along its straight line structure is connected to the base end of the ball joint (7), and the movable end of the ball joint (7) constitutes the front end of the support system.

3. The device for identifying the physical state of slurry inside a pipeline based on an acoustic method according to claim 2, characterized in that: Each support system further includes an oblique support (10), each oblique support (10) being located on the inner side of the arched top cover (4) and below the corresponding straight support (9), one end of each oblique support (10) being connected to the bottom side of the end portion of the corresponding straight support (9) connected to the first spring hose (8), and the other end of each oblique support (10) being connected to the inner surface of the arched top cover (4) and below the end portion connected to the corresponding straight support (9), so that each oblique support (10) provides structural support for the corresponding straight support (9) to which it is connected.

4. The device for identifying the physical state of slurry inside a pipeline based on an acoustic method according to claim 1, characterized in that: The invention also includes at least two groups of sliding devices, each group of sliding devices includes two sub-sliding mechanisms, and the structures of the sub-sliding mechanisms in each sliding device are the same. Each sub-sliding mechanism includes a fixing bolt (11), a mounting seat (12), a second spring hose (13), and a support wheel (14). In the structure of each sub-sliding mechanism, the second spring hose (13) is a telescopic structure along a straight line, the base end of the mounting seat (12) constitutes the base end of the sub-sliding mechanism, the front end of the mounting seat (12) is connected to one end of the second spring hose (13) along its straight line structure, and the other end of the second spring hose (13) along its straight line structure is connected to the support wheel (14); each group of sliding devices is distributed in sequence along the straight line direction of the arched top cover (4), and the base ends of the two sub-sliding mechanisms in each group of sliding devices are respectively set on the inner surface of the arched top cover (4) through corresponding fixing bolts (11). Corresponding to their distribution positions and positions on both sides of the symmetry axis of the arched top cover (4), the heights of the two sub-sliding mechanisms in each group of sliding devices are higher than the height of the support system on the same side, and the heights of all the sub-sliding mechanisms are the same. The rotation positions of the support wheels (14) in each sub-sliding mechanism are respectively in contact with the positions facing the outer surface of the slurry pipe (1), and the direction of the moving path of the rotation of the support wheels (14) in each sub-sliding mechanism is parallel to the linear direction of the arched top cover (4). The two sub-sliding mechanisms in each group of sliding devices are axially symmetrical with respect to the symmetry axis of the same cross-section of the arched top cover (4). Based on the arched top cover (4) moving along the outer surface of the slurry pipe (1) with the sliding of each group of sliding devices, the acoustic wave detection transmitter (2) and the acoustic wave detection receiver (3) work to recognize the physical state of the slurry inside each section of the slurry pipe (1) passed through.

5. The device for identifying the physical state of slurry inside a pipeline based on an acoustic method according to claim 1, characterized in that: The invention also includes two linear bases (15) and at least two groups of walking devices, wherein the length of each base (15) is equal to the length of the two sides of the arched top cover (4), and the top surfaces of the two bases (15) are respectively connected along the bottom of the two side edges of the arched top cover (4); each group of walking devices includes two sub-walking mechanisms, and the structures of the sub-walking mechanisms in each walking device are the same. Each sub-walking mechanism includes a walking wheel (16) and two third spring hoses (17). In the structure of each sub-walking mechanism, each third spring hose (17) is a linear telescopic structure, one end of each third spring hose (17) is respectively connected to the two ends of the bearing on the walking wheel (16), and the two third spring hoses (17) are parallel to each other; each group of walking devices is connected along the arched top. The linear directions of the cover (4) are distributed in sequence, and the two sub-walking mechanisms in each group of walking devices are respectively arranged at positions corresponding to the bottom surfaces of the bases (15) connected to the edges of both sides of the arched top cover (4). The two sub-walking mechanisms in each group of walking devices are in the same cross-section of the arched top cover (4), and the other end of each third spring hose (17) in each sub-walking mechanism is connected to the position of the bottom surface of the base (15) where it is set; the direction of the moving path where the walking wheels (16) in each sub-walking mechanism rotate is parallel to the linear direction of the arched top cover (4); the arched top cover (4) moves as the two walking wheels (16) in each group of walking devices walk on both sides of the slurry pipe (1), and the acoustic wave detection transmitter (2) and the acoustic wave detection receiver (3) work to recognize the physical state of the slurry inside each section of the slurry pipe (1) passed through.

6. The device for identifying the physical state of slurry inside a pipeline based on an acoustic method according to claim 1, characterized in that: The utility model also includes a handrail rod (18), a connecting rod (19), two telescopic rods (20), and four oblique rods (21), wherein the two telescopic rods (20) are both telescopic structures of a sleeve and have the same size as each other, and one end of each telescopic rod (20) in the same direction is respectively connected to the midpoint position of the outer surface of the arched top cover (4) along its straight direction, and the positions of the outer surface of the arched top cover (4) to which the two telescopic rods (20) are respectively connected are distributed at positions at the same distance on both sides of the midline between the two side edges of the outer surface of the arched top cover (4), and the two telescopic rods (20) are both in a vertical posture; the two ends of the handrail rod (18) are respectively connected to the top of the highest position section of the two telescopic rods (20), and the handrail rod (18) is perpendicular to each telescopic rod (20), and the two ends of the connecting rod (19) are respectively connected to the lowest position section of the two telescopic rods (20). At the same height position of the position segment, the connecting rod (19) is perpendicular to each telescopic rod (20); the lengths of the four oblique rods (21) are the same as each other, and the four oblique rods (21) are equally divided into two groups, each group corresponding to two telescopic rods (20), and the two telescopic rods (20) in each group are respectively located on the front and rear sides of the corresponding telescopic rod (20) along the straight line direction of the arched top cover (4), one end of the two oblique rods (21) in each group is respectively connected to the side position of the same height and the same side of the lowest position segment of the corresponding telescopic rod (20), and the other end of the two oblique rods (21) in each group is respectively connected to the outer surface of the arched top cover (4), and the two oblique rods (21) in each group are coplanar with the corresponding telescopic rod (20), and the positions of the corresponding oblique rods (21) on the lowest position segment of the two telescopic rods (20) are the same height as each other.

7. The device for identifying the physical state of slurry inside a pipeline based on an acoustic method according to any one of claims 2, 4, and 5, characterized in that: The linearly retractable structure comprises a flexible sleeve and a spring built into the flexible sleeve, and both ends of the spring are respectively connected to the ends on the same side of the flexible sleeve.

8. The device for identifying the physical state of slurry inside a pipeline based on an acoustic method according to claim 1, characterized in that: The processor (5) is arranged on the top of the inner surface of the arched top cover (4).

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