Acoustic emission device for monitoring damage of high-temperature pressure pipeline

Abstract

The utility model relates to the technical field of safety detection, and discloses an acoustic emission device for monitoring damage of a high-temperature pressure pipeline, which comprises a shell, the outer wall of the shell is fixedly communicated with a water inlet, the outer wall of the shell is fixedly connected with a water return port, the outer wall of the shell is fixedly communicated with an injection port, the outer wall of the shell is fixedly communicated with a connecting pipe, and the outer wall of the shell is fixedly communicated with a water outlet. A second sliding groove is formed in the inner wall of the shell, the positioning mechanism is arranged in the shell, the positioning mechanism comprises a sliding rod, and the outer wall of the sliding rod is in sliding connection with the groove wall of the second sliding groove. According to the utility model, the positioning mechanism is arranged, the transmitting device is coaxial with the high-temperature pressure pipeline through the positioning mechanism and stably slides on the outer wall of the high-temperature pressure pipeline to carry out sound flaw detection, and the cooling mechanism is arranged to ensure that the sensor carries out sound flaw detection work at normal temperature; and impurities on the outer wall of the high-temperature pressure pipeline are scraped through the detection mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of safety detection, in particular to an acoustic emission device used for monitoring damage of high-temperature pressure pipelines. Background Art

[0002] With the development of sensor technology, highly sensitive sensors have been developed that can capture signals such as elastic waves generated by material changes and stress in the operation of high-temperature pressure pipelines, so as to accurately extract characteristic information related to pipeline damage. The innovation of data transmission technology ensures that the processed signals can be stably and efficiently transmitted to the monitoring terminal, and then these signals are deeply analyzed with the help of increasingly intelligent analysis software, thus gradually building a relatively complete technical system for high-temperature pressure pipeline damage monitoring, laying a solid foundation for ensuring the safe and stable operation of high-temperature pressure pipelines.

[0003] The patent application with application number CN202110204527.6 discloses a device for detecting cracks in pipelines using acoustic emission signals. The device for detecting cracks in pipelines using acoustic emission signals includes: a horizontal plate, a fixed plate arranged under the horizontal plate, a telescopic plate slidably fitted with the fixed plate, and a vertical plate fixedly mounted on the fixed plate. The fixed plate and the telescopic plate are placed in the pipeline, the horizontal plate covers the pipe mouth, and the power component works to drive the telescopic plate to slide.

[0004] However, in actual inspection operations, the existing acoustic emission devices used for high-temperature pressure pipeline damage monitoring have extremely high ambient temperatures, which seriously interfere with the conduction of ultrasonic waves. In such high-temperature environments, the propagation characteristics of ultrasonic waves change significantly, and problems such as increased signal attenuation and distorted propagation paths occur frequently, making it impossible for the device to effectively complete accurate flaw detection tasks. Utility Model Content

[0005] The purpose of the utility model is to provide an acoustic emission device for monitoring damage of high-temperature pressure pipelines, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an acoustic emission device for monitoring damage of a high-temperature pressure pipeline, comprising a shell, the outer wall of the shell is fixedly connected to a water inlet, the outer wall of the shell is fixedly connected to a water return port, the outer wall of the shell is fixedly connected to an injection port, the outer wall of the shell is fixedly connected to a connecting pipe, the inner wall of the shell is provided with a sliding groove 2, and also includes a hinge block 1, the outer wall of the hinge block 1 is fixedly connected to the outer wall of the shell, the hinge block 1 is away from one end of the shell and is hinged to the end of the hinge block 2 close to the hinge block 1 through a rotating shaft, and the outer wall of the hinge block 2 is fixedly connected to the outer wall of the shell , the outer wall of the shell is fixedly connected to the outer wall of the second connecting block, the inner wall of the second connecting block is slidably connected to the outer wall of the locking block, the number of the locking blocks is two groups, the two groups of locking blocks are symmetrically arranged inside the second connecting block with the center line of the second connecting block as the symmetry axis, a spring 1 is arranged in the gap between the two groups of locking blocks, both ends of the spring 1 are fixedly connected to the outer wall of the locking block, and also includes an isolation chamber, the outer wall of the isolation chamber is fixedly connected to the inner wall of the shell, a cooling mechanism is arranged inside the isolation chamber, and the locking block is used to lock the connecting block 1 and the connecting block 2 by clamping, and the shell and the high-temperature pressure pipeline are positioned to be coaxial through the hinge block 1 and the hinge block 2;

[0007] A positioning mechanism, wherein the positioning mechanism is arranged inside the shell, and the positioning mechanism includes a sliding rod, the outer wall of the sliding rod is slidably connected to the second groove wall of the sliding groove, the inner wall of the sliding rod is slidably connected to the outer wall of the support rod, the interior of the sliding rod is rotatably connected to the outer wall of the roller through a rotating shaft, a spring 2 is arranged inside the sliding rod, one end of the spring 2 is fixedly connected to the outer wall of the support rod, and the other end is fixedly connected to the inner wall of the sliding rod, the support rod is used to support and position the high-temperature pressure pipeline, and the sliding rod is used to slide from the inside of the shell to support the support rod.

[0008] According to the above technical solution, the cooling mechanism includes a cooling bin, the outer wall of the cooling bin is fixedly connected to a cooling pipe, the outer wall of the cooling pipe is slidably connected to the inner wall of the shell, a detection mechanism is arranged inside the cooling bin, a sliding groove is opened on the inner wall of the cooling bin, a sensor is fixedly connected to the inner wall of the cooling bin, and the cooling bin is used to inject coolant to cool the detection bin and the sensor.

[0009] According to the above technical solution, the detection mechanism includes a detection chamber, the detection chamber is slidably connected to the inner wall of the cooling chamber, the outer wall of the detection chamber is fixedly connected to the outer wall of the fixed block, the outer wall of the detection chamber is fixedly connected to one end of the guide tube close to the detection chamber, the outer wall of the fixed block is slidably connected to a groove wall of the sliding groove, the inner wall of the detection chamber is slidably connected to the outer wall of the sensor, the outer wall of the detection chamber is fixedly connected with a sealing ring, the inner wall of the detection chamber is slidably connected to the outer wall of the baffle, the outer wall of the baffle is fixedly connected to the outer wall of the scraper, the sealing ring is used to contact and seal with the outer wall of the high-temperature pressure pipeline, the baffle is used to isolate the conductive medium injected into the detection chamber, and the scraper is used to clean impurities on the outer wall of the high-temperature pressure pipeline.

[0010] According to the above technical solution, the detection mechanism also includes a fixed plate, the outer wall of the fixed plate is fixedly connected to the inner wall of the detection chamber, the outer wall of the fixed plate is fixedly connected to one end of the guide rod close to the fixed plate, the outer wall of the guide rod is provided with a spring three, one end of the spring three is fixedly connected to the outer wall of the fixed plate, and the other end is fixedly connected to the outer wall of the partition, the outer wall of the partition is slidably connected to the inner wall of the detection chamber, and the fixed plate is used to isolate the conductive medium injected into the detection chamber.

[0011] According to the above technical solution, there are two groups of shells, and the two groups of shells are symmetrically connected to the two ends of the connecting pipe with the center line of the connecting pipe as the symmetry axis. The injection port passes through the shell on the left side of the connecting pipe and is fixedly connected to the outer wall of the isolation chamber. The shell on the right side of the connecting pipe is fixedly connected to the water inlet and the water return port. The water inlet and the water return port are symmetrically arranged on both sides of the shell with the center line of the isolation chamber as the symmetry axis. The injection port is used to inject ultrasonic conductive medium, and the water inlet and the water return port are used to inject coolant into the shell and the cooling chamber.

[0012] According to the above technical solution, there are two groups of cooling mechanisms, and the two groups of cooling mechanisms have a connecting pipe with the center line of the connecting pipe being the axis of symmetry and symmetrically arranged on the inner wall of the shell. There are two groups of cooling pipes, and the two groups of cooling pipes are symmetrically arranged on both sides of the outer wall of the cooling bin with the center line of the cooling bin being the axis of symmetry. One end of the two groups of cooling pipes away from the cooling bin passes through the inner wall of the shell and is slidably connected to the inner wall of the shell. There are two groups of sensors, and the two groups of sensors are symmetrically arranged on both sides of the inner wall of the cooling bin with the center line of the cooling bin being the axis of symmetry. The two groups of cooling pipes are respectively used for the inlet and return of coolant.

[0013] According to the above technical solution, there are two groups of detection mechanisms, and the two groups of detection mechanisms are symmetrically arranged on the inner wall of the cooling bin with the center line of the cooling pipe as the axis of symmetry. There are two groups of partitions, and the two groups of partitions are symmetrically arranged inside the detection bin with the center line of the detection bin as the axis of symmetry. The outer walls of the two groups of partitions at adjacent locations are mutually clamped, the outer wall of the guide tube passes through the inner wall of the shell and the isolation bin, and is slidably connected to the inner wall of the isolation bin, the guide tube is used to inject the conductive medium into the detection bin, and the detection bin is used to isolate the conductive medium.

[0014] According to the above technical solution, there are two groups of partitions, and the two groups of partitions are symmetrically arranged on both sides of the inner wall of the isolation bin with the center line of the detection bin as the symmetry axis. The partitions are in contact with the inner wall of the cooling bin through spring three-extrusion and slide along the inner wall of the cooling bin. The partitions are used to seal the cooling bin when the detection bin slides inside the cooling bin.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The acoustic emission device for monitoring damage of a high-temperature pressure pipeline is provided with a positioning mechanism, through which the emission device is positioned on the outer wall of the high-temperature pressure pipeline, and the emission device is made coaxial with the high-temperature pressure pipeline, thereby improving the detection effect of the emission device, so that the acoustic emission device for monitoring damage of a high-temperature pressure pipeline can stably slide along the high-temperature pressure pipeline, thereby performing acoustic flaw detection on the high-temperature pressure pipeline.

[0017] 2. The acoustic emission device for monitoring damage of high-temperature pressure pipelines is provided with a cooling mechanism, through which the sensor is cooled to prevent high temperature from affecting the effect of the sensor transmitting and receiving signals. At the same time, the high pressure inside the cooling mechanism makes the detection mechanism fit the surface of the high-temperature pressure pipeline more closely, and the sealing effect is better, so that the acoustic emission device for monitoring damage of high-temperature pressure pipelines can ensure that acoustic flaw detection work can be performed at normal temperature.

[0018] 3. The acoustic emission device for monitoring damage to high-temperature pressure pipelines is provided with a detection mechanism, which is attached to the outer wall of the high-temperature pressure pipeline and injected with a conductive medium for detection, and impurities on the outer wall of the high-temperature pressure pipeline are scraped off to prevent the mixed medium from interfering with the detection effect, so that the acoustic emission device for monitoring damage to high-temperature pressure pipelines can better perform acoustic flaw detection on the high-temperature pressure pipeline through the conductive medium.

[0019] 4. The acoustic emission device for monitoring damage to high-temperature pressure pipelines is provided with a partition, through which the conductive medium of the detection mechanism is isolated to avoid waste of detection liquid after the detection is completed, so that the conductive medium will not leak after the detection of the acoustic emission device for monitoring damage to high-temperature pressure pipelines is completed, and the cleanliness of the outer wall of the high-temperature pressure pipeline can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the housing of the utility model;

[0022] Figure 3 This is a cross-sectional view of the housing of the utility model without the positioning mechanism and the cooling mechanism;

[0023] Figure 4 It is a cross-sectional view of a sliding rod in the positioning mechanism of the utility model;

[0024] Figure 5 It is a cross-sectional view of the cooling mechanism of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the detection mechanism of the utility model;

[0026] Figure 7 It is a cross-sectional view of the detection chamber in the detection mechanism of the utility model;

[0027] Figure 8 For this utility model Figure 7 A is an enlarged schematic diagram.

[0028] In the figure: 1. shell; 2. water inlet; 3. water return port; 4. connecting pipe; 5. injection port; 6. positioning mechanism; 601. sliding rod; 602. supporting rod; 603. roller; 604. spring two; 7. cooling mechanism; 701. cooling bin; 702. cooling pipe; 703. sliding groove one; 704. sensor; 71. detection mechanism; 711. detection bin; 712. fixing block; 713. guide tube; 714. partition; 715. sealing ring; 716. baffle; 717. scraper; 718. fixing plate; 719. guide rod; 7110. spring three; 8. hinge block one; 9. hinge block two; 10. connecting block one; 11. connecting block two; 12. isolation bin; 13. sliding groove two; 14. locking block; 15. spring one. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] For example, see Figure 1-Figure 4The utility model provides a technical solution: an acoustic emission device for monitoring damage of a high-temperature pressure pipeline, comprising a shell 1, a water inlet 2 is fixedly connected to the outer wall of the shell 1, a water return port 3 is fixedly connected to the outer wall of the shell 1, an injection port 5 is fixedly connected to the outer wall of the shell 1, a connecting pipe 4 is fixedly connected to the outer wall of the shell 1, a sliding groove 13 is provided on the inner wall of the shell 1, and also comprises a hinge block 1 8, the outer wall of the hinge block 1 8 is fixedly connected to the outer wall of the shell 1, the end of the hinge block 1 8 away from the shell 1 is hingedly connected to the end of the hinge block 2 9 close to the hinge block 1 8 through a rotating shaft, the outer wall of the hinge block 2 9 is fixedly connected to the outer wall of the shell 1, the outer wall of the shell 1 is fixedly connected to the outer wall of the connecting block 2 11, the inner wall of the connecting block 2 11 is slidably connected to the outer wall of the locking block 14, the connecting pipe 4 is made of a hose, and is disassembled and installed to ensure that the two groups of shells 1 are connected;

[0031] The positioning mechanism 6 is arranged inside the shell 1. The positioning mechanism 6 includes a sliding rod 601. The outer wall of the sliding rod 601 is slidably connected to the wall of the sliding groove 13. The inner wall of the sliding rod 601 is slidably connected to the outer wall of the support rod 602. The interior of the sliding rod 601 is rotatably connected to the outer wall of the roller 603 through a rotating shaft. A spring 604 is arranged inside the sliding rod 601. One end of the spring 604 is fixedly connected to the outer wall of the support rod 602, and the other end is fixedly connected to the inner wall of the sliding rod 601. The support rod 602 is used to support and position the high-temperature pressure pipeline. The sliding rod 601 is used to generate pressure on the sliding rod 601 by the coolant injected from the inside of the shell 1, so that the sliding rod 601 slides on the inner wall of the shell 1 to support the support rod 602.

[0032] There are two groups of locking blocks 14, and the two groups of locking blocks 14 are symmetrically arranged inside the connecting block 11 with the center line of the connecting block 11 as the symmetry axis. A spring 15 is arranged in the gap between the two groups of locking blocks 14, and both ends of the spring 15 are fixedly connected to the outer wall of the locking block 14. It also includes an isolation chamber 12, and the outer wall of the isolation chamber 12 is fixedly connected to the inner wall of the shell 1. A cooling mechanism 7 is arranged inside the isolation chamber 12, and the cooling mechanism 7 includes a cooling chamber 701, and the outer wall of the cooling chamber 701 is fixedly connected to a cooling pipe 702, and the cooling pipe 7 02 outer wall is slidably connected with the inner wall of the shell 1, a detection mechanism 71 is arranged inside the cooling chamber 701, a sliding groove 703 is opened on the inner wall of the cooling chamber 701, a sensor 704 is fixedly connected to the inner wall of the cooling chamber 701, the cooling chamber 701 is used to inject coolant to cool the detection chamber 711 and the sensor 704, the locking block 14 is used to lock the connecting block 10 and the connecting block 2 11, and the shell 1 and the high-temperature pressure pipeline are positioned coaxially through the hinge block 1 8 and the hinge block 2 9;

[0033] There are two groups of shells 1, and the two groups of shells 1 are symmetrically connected to both ends of the connecting pipe 4 with the center line of the connecting pipe 4 as the symmetry axis. The injection port 5 passes through the shell 1 located on the left side of the connecting pipe 4 and is fixedly connected to the outer wall of the isolation chamber 12. The shell 1 located on the right side of the connecting pipe 4 is fixedly connected to the water inlet 2 and the water return port 3. The water inlet 2 and the water return port 3 are symmetrically arranged on both sides of the shell 1 with the center line of the isolation chamber 12 as the symmetry axis. The injection port 5 is used to inject ultrasonic conductive medium into the isolation chamber 12, and the water inlet 2 and the water return port 3 are used to inject coolant into the shell 1 and the cooling chamber 701;

[0034] There are two groups of cooling mechanisms 7, and the two groups of cooling mechanisms 7 are symmetrically arranged on the inner wall of the shell 1 with the center line of the connecting pipe 4 as the symmetry axis. There are two groups of cooling pipes 702, and the two groups of cooling pipes 702 are symmetrically arranged on both sides of the outer wall of the cooling bin 701 with the center line of the cooling bin 701 as the symmetry axis. The two groups of cooling pipes 702 are symmetrically arranged on both sides of the outer wall of the cooling bin 701 with one end away from the cooling bin 701 passing through the inner wall of the shell 1 and being slidably connected with the inner wall of the shell 1. There are two groups of sensors 704, and the two groups of sensors 704 are symmetrically arranged on both sides of the inner wall of the cooling bin 701 with the center line of the cooling bin 701 as the symmetry axis. A group of sensors 704 located above the guide tube 713 is a signal transmitting end, and a group of sensors 704 located below the guide tube 713 is a signal receiving end. The two groups of cooling pipes 702 are respectively used for the water inlet and water return of the coolant.

[0035] The working principle of this embodiment is as follows: when the acoustic emission device for monitoring damage of a high-temperature pressure pipeline is put into use, it is opened by hinge block 18 and hinge block 2 9, and is closed by connecting block 10 and connecting block 2 11 and is hung on the outer wall of the high-temperature pressure pipeline. The locking block 14 is squeezed on the inner wall of connecting block 2 11 by spring 15, slides and contacts the inner wall of connecting block 10, and is clamped with connecting block 10. After the suspension is completed, the support rod 602 drives the roller 603 to contact the outer wall of the high-temperature pressure pipeline through the squeeze of spring 2 604, and rolls on the outer wall of the high-temperature pressure pipeline, and is positioned to be concentric with the high-temperature pressure pipeline and adjusted to the high-temperature pressure pipeline detection position, so that the high-pressure cooling water is cooled to a high temperature. The pressure pipe is connected to the water inlet 2, and the cooling water enters the shell 1 through the connecting pipe 4. At the same time, the cooling water enters the cooling chamber 701 through the cooling pipe 702 to cool the sensor 704. The cooling chamber 701 slides on the inner wall of the shell 1 through the cooling water pressure cooling pipe 702, driving the cooling chamber 701 to slide toward the outer wall of the high-temperature pressure pipe. At the same time, the cooling water pressure inside the cooling chamber 701 drives the detection mechanism 71 to fit the outer wall of the high-temperature pressure pipe. Finally, the cooling water flows out from the return water port 3 and establishes a circulation. At the same time, the conductive medium is connected from the injection port 5 and injected into the isolation chamber 12. After entering the detection mechanism 71, the sensor 704 starts to perform flaw detection on the high-temperature pressure pipeline.

[0036] Example 2, based on Example 1, please refer to Figure 5The utility model provides a technical solution: the detection mechanism 71 includes a detection chamber 711, the detection chamber 711 is slidably connected to the inner wall of the cooling chamber 701, the outer wall of the detection chamber 711 is fixedly connected to the outer wall of the fixing block 712, the outer wall of the detection chamber 711 is fixedly connected to the guide tube 713 near one end of the detection chamber 711, the outer wall of the fixing block 712 is slidably connected to the wall of the sliding groove 703, the inner wall of the detection chamber 711 is slidably connected to the outer wall of the sensor 704, the outer wall of the detection chamber 711 is fixedly connected with a sealing ring 715, the inner wall of the detection chamber 711 is slidably connected to the outer wall of the baffle 716, the outer wall of the baffle 716 is fixedly connected to the outer wall of the scraper 717, the sealing ring 715 is used to contact and seal with the outer wall of the high-temperature pressure pipeline, the baffle 716 is used to isolate the conductive medium injected into the detection chamber 711, and the scraper 717 is used to clean the impurities on the outer wall of the high-temperature pressure pipeline;

[0037] There are two groups of detection mechanisms 71, and the two groups of detection mechanisms 71 are symmetrically arranged on the inner wall of the cooling chamber 701 with the center line of the cooling pipe 702 as the symmetry axis. There are two groups of partitions 714, and the two groups of partitions 714 are symmetrically arranged inside the detection chamber 711 with the center line of the detection chamber 711 as the symmetry axis. The outer walls of the two groups of partitions 714 are mutually clamped at adjacent locations. The outer wall of the guide tube 713 passes through the inner wall of the shell 1 and the isolation chamber 12, and is slidably connected to the inner wall of the isolation chamber 12. The guide tube 713 is used to inject the conductive medium into the detection chamber 711, and the detection chamber 711 is used to isolate the conductive medium.

[0038] The working principle of this embodiment is as follows: after the cooling water is injected to drive the detection chamber 711 to fit the outer wall of the high-temperature pressure pipe, the detection chamber 711 contacts the outer wall of the high-temperature pressure pipe through the sealing ring 715 and squeezes the inside of the detection chamber 711 to seal it, and then the conductive medium is injected. After the conductive medium generates pressure inside the detection chamber 711, the baffle 716 slides on the inner wall of the detection chamber 711 through the pressure generated inside the detection chamber 711, and during the sliding process of the baffle 716, the scraper 717 slides along the outer wall of the high-temperature pressure pipe to clean the impurities on the outer wall of the high-temperature pressure pipe. After the inspection is completed, the staff pushes the baffle 716 to isolate the conductive medium and retains the conductive medium inside the detection chamber 711 to facilitate the next round of inspection.

[0039] Example 3, based on Example 2, please refer to Figure 6-Figure 8 The utility model provides a technical solution: the detection mechanism 71 also includes a fixed plate 718, the outer wall of the fixed plate 718 is fixedly connected to the inner wall of the detection chamber 711, the outer wall of the fixed plate 718 is fixedly connected to the end of the guide rod 719 close to the fixed plate 718, the outer wall of the guide rod 719 is provided with a spring three 7110, one end of the spring three 7110 is fixedly connected to the outer wall of the fixed plate 718, and the other end is fixedly connected to the outer wall of the partition 714, the outer wall of the partition 714 is slidably connected to the inner wall of the detection chamber 711, and the fixed plate 718 is used to isolate the conductive medium injected into the detection chamber 711;

[0040] There are two groups of partitions 714, and the two groups of partitions 714 are symmetrically arranged on both sides of the inner wall of the isolation chamber 12 with the center line of the detection chamber 711 as the symmetry axis. The partitions 714 are squeezed by spring three 7110 to contact the inner wall of the cooling chamber 701 and slide along the inner wall of the cooling chamber 701. The partitions 714 are used to seal the cooling chamber 701 when the detection chamber 711 slides inside the cooling chamber 701, isolate the cooling water, and prevent the cooling water from leaking after the cooling water drives the detection chamber to slide on the inner wall of the cooling chamber.

[0041] The working principle of this embodiment is as follows: after high-pressure cooling water is injected into the cooling bin 701, the detection bin 711 slides on the inner wall of the cooling bin 701, and the partition 714 is squeezed on the inner wall of the detection bin 711 by spring three 7110 to slide and contact the inner wall of the cooling bin 701, and the sliding of the detection bin 711 on the inner wall of the cooling bin 701 drives the partition 714 to slide on the inner wall of the cooling bin 701 to isolate the cooling water.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An acoustic emission device for monitoring damage of a high-temperature pressure pipeline, comprising a shell (1), wherein the outer wall of the shell (1) is fixedly connected to a water inlet (2), the outer wall of the shell (1) is fixedly connected to a water return port (3), the outer wall of the shell (1) is fixedly connected to an injection port (5), the outer wall of the shell (1) is fixedly connected to a connecting pipe (4), and the inner wall of the shell (1) is provided with a second sliding groove (13), characterized in that: It also includes an articulated block (8), the outer wall of the articulated block (8) being fixedly connected to the outer wall of the shell (1), the end of the articulated block (8) away from the shell (1) being hingedly connected to the end of the articulated block (9) close to the articulated block (8) via a rotating shaft, the outer wall of the articulated block (9) being fixedly connected to the outer wall of the shell (1), the outer wall of the shell (1) being fixedly connected to the outer wall of the connecting block (11), and the inner wall of the connecting block (11) being slidably connected to the outer wall of the locking block (14); A positioning mechanism (6), the positioning mechanism (6) being arranged inside the housing (1), the positioning mechanism (6) comprising a sliding rod (601), the outer wall of the sliding rod (601) being slidably connected to the wall of the second sliding groove (13), the inner wall of the sliding rod (601) being slidably connected to the outer wall of the support rod (602), the interior of the sliding rod (601) being rotatably connected to the outer wall of the roller (603) via a rotating shaft, a second spring (604) being arranged inside the sliding rod (601), one end of the second spring (604) being fixedly connected to the outer wall of the support rod (602), and the other end being fixedly connected to the inner wall of the sliding rod (601), the support rod (602) being used to support and position a high-temperature pressure pipeline, and the sliding rod (601) being used to slide from inside the housing (1) to support the support rod (602).

2. The acoustic emission device for high-temperature pressure pipeline damage monitoring according to claim 1, characterized in that: The number of the locking blocks (14) is two groups. The two groups of locking blocks (14) are symmetrically arranged inside the connecting block (11) with the center line of the connecting block (11) as the symmetry axis. A spring (15) is arranged in the gap between the two groups of locking blocks (14). Both ends of the spring (15) are fixedly connected to the outer wall of the locking block (14). The isolation chamber (12) also includes an outer wall of the isolation chamber (12) fixedly connected to the inner wall of the shell (1). A cooling mechanism (7) is arranged inside the isolation chamber (12). The cooling mechanism (7) includes a cooling chamber (701). The outer wall of the cooling chamber (701) is fixedly connected to a cooling pipe (702). The outer wall of the cooling pipe (702) is slidably connected to the inner wall of the shell (1); a detection mechanism (71) is arranged inside the cooling chamber (701); a sliding groove (703) is provided on the inner wall of the cooling chamber (701); a sensor (704) is fixedly connected to the inner wall of the cooling chamber (701); the cooling chamber (701) is used to inject coolant to cool the detection chamber (711) and the sensor (704); the locking block (14) is used to lock the connecting block (10) and the connecting block (11) by clamping, and the shell (1) and the high-temperature pressure pipeline are positioned coaxially through the hinge block (8) and the hinge block (9).

3. The acoustic emission device for high-temperature pressure pipeline damage monitoring according to claim 2, characterized in that: The detection mechanism (71) comprises a detection chamber (711), the detection chamber (711) is slidably connected to the inner wall of the cooling chamber (701), the outer wall of the detection chamber (711) is fixedly connected to the outer wall of the fixing block (712), the outer wall of the detection chamber (711) is fixedly connected to an end of a guide tube (713) close to the detection chamber (711), the outer wall of the fixing block (712) is slidably connected to the wall of a sliding groove (703), and the inner wall of the detection chamber (711) is slidably connected to the outer wall of the sensor (704). The detection chamber (711) is dynamically connected, the outer wall of the detection chamber (711) is fixedly connected with a sealing ring (715), the inner wall of the detection chamber (711) is slidably connected to the outer wall of the baffle (716), the outer wall of the baffle (716) is fixedly connected to the outer wall of the scraper (717), the sealing ring (715) is used to contact and seal the outer wall of the high-temperature pressure pipeline, the baffle (716) is used to isolate the conductive medium injected into the detection chamber (711), and the scraper (717) is used to clean impurities on the outer wall of the high-temperature pressure pipeline.

4. The acoustic emission device for high-temperature pressure pipeline damage monitoring according to claim 3, characterized in that: The detection mechanism (71) further comprises a fixed plate (718), the outer wall of the fixed plate (718) being fixedly connected to the inner wall of the detection chamber (711), the outer wall of the fixed plate (718) being fixedly connected to one end of a guide rod (719) close to the fixed plate (718), the outer wall of the guide rod (719) being provided with a spring three (7110), one end of the spring three (7110) being fixedly connected to the outer wall of the fixed plate (718), and the other end of the spring three (7110) being fixedly connected to the outer wall of the partition plate (714), the outer wall of the partition plate (714) being slidably connected to the inner wall of the detection chamber (711), and the fixed plate (718) being used to isolate the conductive medium injected into the detection chamber (711).

5. The acoustic emission device for high-temperature pressure pipeline damage monitoring according to claim 1, characterized in that: The shells (1) are provided in two groups. The two groups of shells (1) are symmetrically connected to the two ends of the connecting pipe (4) with the center line of the connecting pipe (4) as the axis of symmetry. The injection port (5) passes through the shell (1) located on the left side of the connecting pipe (4) and is fixedly connected to the outer wall of the isolation chamber (12). The shell (1) located on the right side of the connecting pipe (4) is fixedly connected to the water inlet (2) and the water return port (3). The water inlet (2) and the water return port (3) are symmetrically arranged on both sides of the shell (1) with the center line of the isolation chamber (12) as the axis of symmetry. The injection port (5) is used to inject an ultrasonic conductive medium into the isolation chamber (12). The water inlet (2) and the water return port (3) are used to inject cooling liquid into the shell (1) and the cooling chamber (701).

6. The acoustic emission device for high-temperature pressure pipeline damage monitoring according to claim 2, characterized in that: The number of the cooling mechanisms (7) is two groups, and the two groups of the cooling mechanisms (7) are symmetrically arranged on the inner wall of the shell (1) with the center line of a connecting pipe (4) being the axis of symmetry. The number of the cooling pipes (702) is two groups, and the two groups of the cooling pipes (702) are symmetrically arranged on both sides of the outer wall of the cooling bin (701) with the center line of the cooling bin (701) being the axis of symmetry. The ends of the two groups of the cooling pipes (702) away from the cooling bin (701) penetrate through the inner wall of the shell (1) and are slidably connected to the inner wall of the shell (1). The number of the sensors (704) is two groups, and the two groups of the sensors (704) are symmetrically arranged on both sides of the inner wall of the cooling bin (701) with the center line of the cooling bin (701) being the axis of symmetry. The two groups of the cooling pipes (702) are respectively used for the inlet and return of the coolant.

7. The acoustic emission device for high-temperature pressure pipeline damage monitoring according to claim 4, characterized in that: The number of the detection mechanisms (71) is two groups, and the two groups of the detection mechanisms (71) are symmetrically arranged on the inner wall of the cooling chamber (701) with the center line of the cooling pipe (702) as the symmetry axis. The number of the partitions (714) is two groups, and the two groups of the partitions (714) are symmetrically arranged inside the detection chamber (711) with the center line of the detection chamber (711) as the symmetry axis. The outer walls of the two groups of partitions (714) at adjacent locations are mutually engaged. The outer wall of the guide tube (713) passes through the inner wall of the shell (1) and the isolation chamber (12), and is slidably connected to the inner wall of the isolation chamber (12). The guide tube (713) is used to inject a conductive medium into the detection chamber (711), and the detection chamber (711) is used to isolate the conductive medium.

8. The acoustic emission device for high-temperature pressure pipeline damage monitoring according to claim 4, characterized in that: The partition plates (714) are provided in two groups. The two groups of partition plates (714) are symmetrically arranged on both sides of the inner wall of the isolation chamber (12) with the center line of the detection chamber (711) as the symmetry axis. The partition plates (714) are squeezed by spring three (7110) to contact the inner wall of the cooling chamber (701) and slide along the inner wall of the cooling chamber (701). The partition plates (714) are used to seal the cooling chamber (701) when the detection chamber (711) slides inside the cooling chamber (701).

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