High-temperature pipeline creep fatigue detection device and method based on use state

Abstract

The invention relates to a high-temperature pipeline creep fatigue detection device and method based on a use state, and the device comprises an ultrasonic sensor group which is used for carrying out creep fatigue detection on high-temperature pipelines, a pipe barrel assembly which is arranged between the high-temperature pipelines, and a displacement frame assembly which is arranged between the pipe barrel assembly and the ultrasonic sensor group. Creep fatigue detection is carried out on high-temperature pipelines with ultrasonic waves as detection signals, a supporting carrier is formed between the high-temperature pipelines through the pipe barrel assembly, and an ultrasonic sensor set is reinstalled on the high-temperature pipelines through the displacement frame assembly. Switching between an initial installation part placed outside a high-temperature pipeline and a final measurement part placed on the high-temperature pipeline is realized, and the technical problems that a built-in ultrasonic sensor is placed on the inner wall of a middle pipeline and an external ultrasonic sensor is placed on the outer wall of a port of the high-temperature pipeline are solved. Therefore, the accuracy of creep fatigue detection of the high-temperature pipeline is improved.

Description

Technical Field

[0001] The present invention relates to a creep fatigue detection device and method for high-temperature pipelines, and particularly to a creep fatigue detection device and method for high-temperature pipelines under the operating state. Background Art

[0002] When pipeline transportation is carried out at high temperatures, under the action of the creep behavior of materials and the fatigue damage mechanism in the high-temperature environment, creep fatigue of high-temperature pipelines will be accelerated. Therefore, a creep fatigue detection device for high-temperature pipelines is an important pipeline detection device. In existing creep fatigue detection devices for high-temperature pipelines, an internal ultrasonic sensor is placed on the inner wall of the middle pipeline, and an external ultrasonic sensor is placed on the outer wall of the port of the high-temperature pipeline. Due to the limitations of the internal and external ultrasonic sensors on the detection parts of the high-temperature pipeline, the accuracy of creep fatigue detection of the high-temperature pipeline is affected. Through the technical feature of converting between the initial installation part placed outside the high-temperature pipeline and the final measurement part placed on the high-temperature pipeline, the present invention effectively explores and researches at the technical level the technical problem that an internal ultrasonic sensor is placed on the inner wall of the middle pipeline and an external ultrasonic sensor is placed on the outer wall of the port of the high-temperature pipeline. The statements here only provide the background art related to the present invention and do not necessarily constitute the prior art. Based on the technical disclosure document provided by the applicant on July 22, 2024, which solves practical technical problems during the working process, and by retrieving similar patent documents with the patent number: ZL 202410639803.5 and the existing technical problems, technical features and technical effects in the background art, the application technical solution of the present invention is made. Summary of the Invention

[0003] The object of the present invention is a creep fatigue detection device for high-temperature pipelines under the operating state. The object of the present invention is a creep fatigue detection method for high-temperature pipelines under the operating state.

[0004] In order to overcome the above technical drawbacks, the object of the present invention is to provide a creep fatigue detection device and method for high-temperature pipelines under the operating state, thereby improving the accuracy of creep fatigue detection of high-temperature pipelines.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a creep fatigue detection device for high-temperature pipelines under the operating state, comprising an ultrasonic sensor group for detecting the creep fatigue of high-temperature pipelines, a tube assembly arranged between the high-temperature pipelines, and a displacement frame assembly arranged between the tube assembly and the ultrasonic sensor group.

[0006] Due to the design of the ultrasonic sensor group, the tube assembly and the displacement frame assembly, through the ultrasonic sensor group, creep fatigue detection of high-temperature pipelines is realized using ultrasonic waves as the detection signal. Through the tube assembly, a support carrier is formed between high-temperature pipelines. Through the displacement frame assembly, reinstallation of the ultrasonic sensor group on the high-temperature pipeline is realized, and conversion between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline is achieved, solving the technical problem that both the built-in ultrasonic sensor is placed on the inner wall of the middle pipeline and the external ultrasonic sensor is placed on the outer wall of the high-temperature pipeline port, thus improving the accuracy of creep fatigue detection of high-temperature pipelines.

[0007] The present invention designs to connect the ultrasonic sensor group, the tube assembly and the displacement frame assembly to each other in a way that enables conversion between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline.

[0008] The present invention designs to connect the displacement frame assembly to the ultrasonic sensor group and the tube assembly in a way that enables reinstallation on the high-temperature pipeline.

[0009] The present invention designs that the ultrasonic sensor group is set to include a built-in ultrasonic sensor and an external ultrasonic sensor.

[0010] The present invention designs that the tube assembly is set to include an intermediate pipeline and a support cylinder shell.

[0011] The present invention designs that the displacement frame assembly is set to include a moving disk, connecting bolts and nuts, an inner extension frame, an outer extension frame, a moving cylinder shell and a tightening screw.

[0012] The technical effects of the above six technical solutions are as follows: It realizes the separate setting of the measurement point and the installation point, measures the ultrasonic sensor group on the high-temperature pipeline, and installs the ultrasonic sensor group on the tube assembly.

[0013] The present invention designs that it further includes a first accessory device and the first accessory device is arranged on the tube assembly, and the first accessory device is set as a heat insulation pad.

[0014] The technical effects of the above technical solutions are as follows: It realizes the integrated installation of other components and expands the technical effects of the present invention.

[0015] The present invention is designed such that a support cylinder shell, a moving disk, and a heat insulation pad are respectively arranged on the middle pipeline. Connecting bolts and nuts are arranged between the moving disk and the support cylinder shell, and an inner extension frame is arranged between the moving disk and the middle pipeline. A moving cylinder shell is arranged on the support cylinder shell, and a tightening screw rod is arranged between the moving cylinder shell and the support cylinder shell. An outer extension frame is arranged between the moving cylinder shell and the middle pipeline, an internal ultrasonic sensor is arranged between the inner extension frame and the middle pipeline, and an external ultrasonic sensor is arranged between the outer extension frame and the middle pipeline.

[0016] The technical effects of the above technical solution are as follows: The basic technical solution of the present invention is composed of an internal ultrasonic sensor, an external ultrasonic sensor, a middle pipeline, a support cylinder shell, a moving disk, connecting bolts and nuts, an inner extension frame, an outer extension frame, a moving cylinder shell, a tightening screw rod, and a heat insulation pad, solving the technical problems of the present invention.

[0017] The present invention is designed such that the internal ultrasonic sensor and the external ultrasonic sensor are respectively set as ultrasonic sensors with heat insulation shells, the internal ultrasonic sensor is set to be connected to the middle pipeline in a sunken manner, the shell of the internal ultrasonic sensor is set to be connected to the inner extension frame, and the shell of the external ultrasonic sensor is set to be connected to the outer extension frame.

[0018] The technical effects of the above technical solution are as follows: Measurement points are set on the inner and outer walls of the high-temperature pipeline.

[0019] The present invention is designed such that the middle pipeline is set to include a pipe portion and a flange portion, a receiving hole body Ⅰ is arranged on the peripheral side edge of the pipe portion, the outer side surface of the port of the pipe portion is set to be connected to the inner wall of the flange portion, the pipe portion is respectively set to be connected to the support cylinder shell and the moving disk in a penetrating manner, the middle of the peripheral side of the pipe portion is set to be connected to the support cylinder shell, the pipe portion is respectively set to be connected to the internal ultrasonic sensor and the inner extension frame in a receiving manner, the outer end face of the flange portion is set to be in contact connection with the heat insulation pad, and the receiving hole body Ⅰ is set to be connected to the inner extension frame.

[0020] The present invention is designed such that the pipe portion is set as a circular cylinder, and the receiving hole body Ⅰ is set as a long strip hole body, and the receiving hole body Ⅰ is set to be arranged at intervals along the peripheral contour line of the pipe portion.

[0021] The technical effects of the above two technical solutions are as follows: Flange docking with the high-temperature pipeline is realized.

[0022] The present invention designs that the supporting cylinder shell is set to include a cylinder part and a ring part, and a receiving hole body II is arranged at the peripheral side edge of the cylinder part. The outer side wall of the ring part is set to be connected to the middle of the inner wall of the cylinder part, and the inner side wall of the ring part is set to be connected to the middle pipeline. The cylinder part is set to be connected to the moving cylinder shell in a penetrating manner, and the peripheral side of the cylinder part is set to be in contact connection with the tightening screw. The end face of the ring part is set to be connected to the connecting bolt and nut, and the receiving hole body II is set to be connected to the outer extending frame.

[0023] The present invention designs that the cylinder part is set to be a circular tubular body, the ring part is set to be an annular sheet body, the receiving hole body II is set to be a long strip hole body, and the receiving hole body II is set to be arranged at intervals along the peripheral contour line of the cylinder part.

[0024] The technical effects of the above two technical solutions are as follows: realizing the placement of the annular cross-bridge cylinder body support on the middle pipeline.

[0025] The present invention designs that the moving disk is set to be a circular block with through holes at the edge and in the middle, and the middle through hole on the moving disk is set to be connected to the middle pipeline. The edge through holes on the moving disk are set to be connected to the bolts of the connecting bolt and nut, and the edge of the end face of the moving disk is set to be in contact connection with the nut of the connecting bolt and nut. The inner side of the end face of the moving disk is set to be connected to the inner extending frame.

[0026] The present invention designs that the inner end of the bolt of the connecting bolt and nut is set to be connected to the supporting cylinder shell, the outer end of the bolt of the connecting bolt and nut is set to be connected to the moving disk in a penetrating manner. The inner end faces of the inner and outer nuts of the connecting bolt and nut are set to be in contact connection with the moving disk, the bolt of the connecting bolt and nut is set to be a light column bolt, and the inner and outer nuts of the connecting bolt and nut are respectively set to be hexagonal nuts.

[0027] The present invention designs that the inner extending frame is set to include a rod part I, a rod part II, and a spring part, and a receiving hole body III is arranged at the end of the inner horizontal part of the rod part I. The receiving hole body III is set to be connected to the inner end of the rod part II, and the inner end of the rod part II is set to be connected to the spring part in a penetrating manner. One of the inner side of the end of the inner horizontal part of the rod part I and one end of the spring part are respectively set to be in contact connection with the inner end of the rod part II, and the other end of the spring part is set to be in contact connection with the outer side of the end of the inner horizontal part of the rod part I. The outer end of the outer horizontal part of the rod part I is set to be connected to the moving disk, the vertical part of the rod part I is set to be connected to the middle pipeline in a penetrating manner, and the outer end of the rod part II is set to be connected to the built-in ultrasonic sensor.

[0028] The present invention designs that the rod part I is set as a C-shaped rod body and the rod part II is set as a rod body with an annular groove at the inner end. The inner wall of the annular groove of the rod part II is set to be in contact connection with one end of the spring part, and the outer wall of the annular groove of the rod part II is set to be in contact connection with the inner side surface of the end of the inner horizontal part of the rod part I. The spring part is set as a columnar spring and the accommodating hole body III is set as a hole body.

[0029] The technical effects of the above four technical solutions are as follows: A moving frame is realized to be arranged between the pipe part and the high-temperature pipeline, and the mobile support for the built-in ultrasonic sensor is realized.

[0030] The present invention designs that the moving cylinder shell is set as a circular tubular body with a threaded hole body in the middle of the peripheral side surface, and the threaded hole body of the moving cylinder shell is set to be in threaded connection with the tightening screw rod. The outer edge of the peripheral side surface of the moving cylinder shell is set to be connected with the outer stretching frame through the middle connecting rod, and the moving cylinder shell is set to be in a sleeved connection with the supporting cylinder shell.

[0031] The present invention designs that the tightening screw rod is set as an internal hexagonal bolt and the tightening screw rod is set to be in threaded connection with the moving cylinder shell. The inner end face of the tightening screw rod is set to be in contact connection with the supporting cylinder shell.

[0032] The present invention designs that the outer stretching frame is set to include a rod part III, a rod part IV, a sleeve part, an ear seat part, a rod part V, a screw rod part and a pressing nut part, and an accommodating hole body IV is arranged on the vertical part of the rod part V. The inner end of the rod part III is set to be connected with the cross end of the rod part IV through a pin shaft, and the cross part of the rod part IV is set to be in a penetrating connection with the sleeve part. The outer end face of the sleeve part is set to be connected with the ear seat part, and the inclined end of the rod part V is set to be connected with the ear seat part through a pin shaft. The screw rod part is set to be in a penetrating connection with the accommodating hole body IV, and the inner end face of the screw rod part is set to be connected with the outer end face of the rod part III. The pressing nut part is set to be in threaded connection with the screw rod part, and the inner end face of the pressing nut part is set to be in contact connection with the outer end face of the vertical part of the rod part V. The vertical end of the rod part IV is set to be connected with the external ultrasonic sensor, and the rod part III is set to be in a penetrating connection with the supporting cylinder shell. The inner end face of the rod part III is set to be connected with the moving cylinder shell through the middle connecting rod.

[0033] The present invention designs that the rod part III is set as a straight rod body, the rod parts IV and V are respectively set as L-shaped rod bodies, the sleeve part is set as a tubular body, the ear seat part is set as a double-plate ear seat, the screw rod part is set as a smooth shaft bolt, the pressing nut part is set as a hexagonal nut, and the accommodating hole body IV is set as a long hole.

[0034] The technical effects of the above four technical solutions are as follows: A moving swing composite frame is realized to be arranged between the cylinder shell and the high-temperature pipeline, and the lateral movement and angular swing support for the external ultrasonic sensor are realized.

[0035] The present invention designs that the heat insulation pad is set as a glass fiber heat insulation blanket block with a through-hole body, and the inner end face of the heat insulation pad is set to be in contact connection with the middle pipeline.

[0036] The technical effect of the above technical solution is that heat insulation treatment of the middle pipeline is achieved.

[0037] The present invention designs that the built-in ultrasonic sensor and the external ultrasonic sensor, the middle pipeline, the support cylinder shell, the moving disk, the connecting bolt and nut, the inner extension frame, the outer extension frame, the moving cylinder shell and the tightening screw rod are arranged in a distribution mode supported according to telescopic components, and the built-in ultrasonic sensor, the external ultrasonic sensor, the middle pipeline, the support cylinder shell, the moving disk, the connecting bolt and nut, the inner extension frame, the outer extension frame, the moving cylinder shell and the tightening screw rod are arranged in a middle heat insulation mode with the heat insulation pad.

[0038] The present invention designs that two heat insulation pads are arranged on the middle pipeline, and the center lines of the middle pipeline, the support cylinder shell, the moving disk, the moving cylinder shell and the heat insulation pad are arranged on the same straight line. The rod part III is set to be connected with the accommodating hole body II, and the rod part I is set to be connected with the accommodating hole body I.

[0039] The present invention designs that one moving disk, three connecting bolt and nuts, three inner extension frames and three built-in ultrasonic sensors are set to form a group of inner detection components, and three external ultrasonic sensors, three outer extension frames, one moving cylinder shell and three tightening screw rods are set to form a group of outer detection components. The two groups of inner detection components and the two groups of outer detection components are respectively arranged between the middle pipeline and the support cylinder shell, and the two groups of inner detection components are arranged in a staggered and spaced arrangement along the peripheral contour line of the middle pipeline.

[0040] The technical effect of the above technical solution is that creep fatigue detection of high-temperature pipelines on both sides of the valve is realized simultaneously, and the creep fatigue detection efficiency of high-temperature pipelines is improved.

[0041] The present invention designs a creep fatigue detection method for high-temperature pipelines in the use state. The steps are as follows: The ultrasonic sensor group realizes creep fatigue detection of high-temperature pipelines with ultrasonic waves as detection signals. The tube barrel assembly realizes the formation of a support carrier between high-temperature pipelines. The displacement frame assembly realizes reinstallation of the ultrasonic sensor group on high-temperature pipelines, and realizes the conversion between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline.

[0042] The technical effects of the above technical solutions are as follows: highlighting the technical feature of converting between the initial installation site placed outside the high-temperature pipeline and the final measurement site placed on the high-temperature pipeline, and introducing the application in the technical field of creep fatigue detection methods for high-temperature pipelines under the use state.

[0043] The present invention is designed with the following steps: When creep fatigue detection of a high-temperature pipeline is required, when the high-temperature pipeline stops conveying work, the valve located on the high-temperature pipeline is disassembled, the intermediate pipeline is placed between the high-temperature pipelines on both sides of the valve, the heat insulation pad is placed between the flange part and the high-temperature pipeline, and the flange part and the high-temperature pipeline are connected through connecting bolts and nuts, so as to install the intermediate pipeline between the high-temperature pipelines on both sides of the valve. Rotate the jacking screw in the threaded hole of the moving cylinder shell, separate the inner end face of the jacking screw from the peripheral side face of the cylinder part, move the moving cylinder shell outward on the cylinder part, and move the rod part III outward in the receiving hole II. When the moving cylinder shell is located on the edge of the cylinder part, rotate the jacking screw in the threaded hole of the moving cylinder shell in the reverse direction, make the inner end face of the jacking screw act on the peripheral side face of the cylinder part, rotate the pressing nut part on the screw part, separate the inner end face of the pressing nut part from the outer end face of the vertical part of the rod part V, turn the rod part IV outward, move the sleeve part on the horizontal part of the rod part IV, move the screw part in the receiving hole IV, make the moving disk in the open space, rotate the inner nut of the connecting bolt and nut on the bolt of the connecting bolt and nut, move the inner nut of the connecting bolt and nut inward on the bolt of the connecting bolt and nut, move the moving disk inward on the bolt of the connecting bolt and nut, move the vertical part of the rod part I inward in the receiving hole I, move the rod part II into the high-temperature pipeline, under the elastic energy storage effect of the spring part, move the inner end head of the rod part II outward in the receiving hole III, make the built-in ultrasonic sensor act on the inner wall of the high-temperature pipeline, rotate the outer nut of the connecting bolt and nut on the bolt of the connecting bolt and nut, move the outer nut of the connecting bolt and nut inward on the bolt of the connecting bolt and nut, make the inner end faces of the inner and outer nuts of the connecting bolt and nut act on the edge of the end face of the moving disk respectively, turn the rod part IV inward, move the sleeve part in the reverse direction on the horizontal part of the rod part IV, move the screw part in the reverse direction in the receiving hole IV, make the external ultrasonic sensor act on the outer wall of the high-temperature pipeline, rotate the pressing nut part on the screw part in the reverse direction, make the inner end face of the pressing nut part act on the outer end face of the vertical part of the rod part V, and perform creep fatigue detection on the high-temperature pipeline by the built-in ultrasonic sensor and the external ultrasonic sensor. When the creep fatigue detection of the high-temperature pipeline is completed by the built-in ultrasonic sensor and the external ultrasonic sensor, separate the inner end face of the pressing nut part from the outer end face of the vertical part of the rod part V, turn the rod part IV outward, make the moving disk in the open space, rotate the outer nut of the connecting bolt and nut on the bolt of the connecting bolt and nut in the reverse direction, move the outer nut of the connecting bolt and nut outward on the bolt of the connecting bolt and nut, move the moving disk outward on the bolt of the connecting bolt and nut, move the vertical part of the rod part I outward in the receiving hole I, move the rod part II into the pipe part, under the elastic energy storage effect of the spring part, move the inner end head of the rod part II outward in the receiving hole III, and place the built-in ultrasonic sensor on the inner wall of the pipe part.Rotate the inner nut connecting the bolt and nut in the opposite direction on the bolt of the connecting bolt and nut, move the inner nut connecting the bolt and nut outward on the bolt of the connecting bolt and nut, make the inner end faces of the inner and outer nuts of the connecting bolt and nut act on the edge of the end face of the moving disc respectively, separate the inner end face of the tightening screw rod from the peripheral side surface of the barrel part, move the moving barrel shell inward on the barrel part, move the rod part Ⅲ inward in the receiving hole body Ⅱ, when the moving barrel shell is located in the middle of the barrel part, make the rod part Ⅳ turn inward, place the external ultrasonic sensor on the outer wall of the pipe part, then make the inner end face of the pressing nut part act on the outer end face of the vertical part of the rod part Ⅴ, make the inner end face of the tightening screw rod act on the peripheral side surface of the barrel part, disassemble the flange part and the high-temperature pipeline through the connecting bolt and nut, take out the intermediate pipeline from between the high-temperature pipelines on both sides of the valve, and then install the valve between the high-temperature pipelines.

[0044] The technical effect of the above technical solution is as follows: It realizes the creep fatigue detection operation by the built-in ultrasonic sensor placed on the intermediate pipeline and the external ultrasonic sensor installed on the high-temperature pipeline.

[0045] In this technical solution, the conversion between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline is realized by the displacement frame assembly.

[0046] In this technical solution, the ultrasonic sensor group, the pipe barrel assembly and the displacement frame assembly for converting between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline are important technical features, and have novelty, creativity and practicability in the technical field of the creep fatigue detection device and method for high-temperature pipelines in the use state. The terms in this technical solution can be explained and understood by the patent documents in this technical field. Description of the Drawings

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0048] Figure 1 It is a schematic diagram of one of the first embodiments of a creep fatigue detection device for high-temperature pipelines in the use state of the present invention. Built-in ultrasonic sensor - 1, external ultrasonic sensor - 2, intermediate pipe - 3, support cylinder shell - 4, moving disk - 5, connecting bolt and nut - 6, inner extension frame - 7, outer extension frame - 8, moving cylinder shell - 9, tightening screw rod - 91, heat insulation pad - 92, pipe part - 31, flange part - 32, accommodation hole body Ⅰ - 33, cylinder part - 41, ring part - 42, accommodation hole body Ⅱ - 43, rod part Ⅰ - 71, rod part Ⅱ - 72, spring part - 73, accommodation hole body Ⅲ - 74, rod part Ⅲ - 81, rod part Ⅳ - 82, sleeve part - 83, ear seat part - 84, rod part Ⅴ - 85, screw rod part - 86, pressing nut part - 87, accommodation hole body Ⅳ - 88. Detailed implementation mode

[0049] According to the examination guidelines, terms such as "having", "comprising", and "including" used in the present invention should be understood as not excluding the presence or addition of one or more other elements or combinations thereof.

[0050] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following embodiments are commercially available. If the processing conditions are not clearly stated, please make improvements according to the conventional methods in the art.

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] A creep fatigue detection device for high-temperature pipelines in a used state Figure 1 This is one of the first embodiments of the present invention. Specifically described in conjunction with the accompanying drawings, this embodiment includes an internal ultrasonic sensor 1, an external ultrasonic sensor 2, an intermediate pipeline 3, a support cylinder shell 4, a moving disk 5, connecting bolts and nuts 6, an internal extension frame 7, an external extension frame 8, a moving cylinder shell 9, a tightening screw 91 and a heat insulation pad 92. The support cylinder shell 4, the moving disk 5 and the heat insulation pad 92 are respectively arranged on the intermediate pipeline 3. Connecting bolts and nuts 6 are arranged between the moving disk 5 and the support cylinder shell 4, and an internal extension frame 7 is arranged between the moving disk 5 and the intermediate pipeline 3. A moving cylinder shell 9 is arranged on the support cylinder shell 4, and a tightening screw 91 is arranged between the moving cylinder shell 9 and the support cylinder shell 4. An external extension frame 8 is arranged between the moving cylinder shell 9 and the intermediate pipeline 3, an internal ultrasonic sensor 1 is arranged between the internal extension frame 7 and the intermediate pipeline 3, and an external ultrasonic sensor 2 is arranged between the external extension frame 8 and the intermediate pipeline 3.

[0055] This is the second of the first embodiments of the present invention. Specifically described in conjunction with the accompanying drawings, In this embodiment, the internal ultrasonic sensor 1 and the external ultrasonic sensor 2 are respectively set as ultrasonic sensors with heat insulation shells, and the internal ultrasonic sensor 1 is set to be connected to the intermediate pipeline 3 in a sunken manner. The shell of the internal ultrasonic sensor 1 is set to be connected to the internal extension frame 7, and the shell of the external ultrasonic sensor 2 is set to be connected to the external extension frame 8.

[0056] Through the internal ultrasonic sensor 1 and the external ultrasonic sensor 2, support connection points for the intermediate pipeline 3, the internal extension frame 7 and the external extension frame 8 are formed. Through the internal ultrasonic sensor 1, the connection with the intermediate pipeline 3 and the connection with the internal extension frame 7 are realized. Through the external ultrasonic sensor 2, the connection with the external extension frame 8 is realized. Its technical purpose is to be used as a component for picking up creep fatigue signals of high-temperature pipelines.

[0057] In this embodiment, the intermediate pipe 3 is arranged to include a pipe portion 31 and a flange portion 32, and a receiving hole body I 33 is arranged at the peripheral side edge of the pipe portion 31. The outer side surface of the port of the pipe portion 31 is arranged to be connected to the inner wall of the flange portion 32, and the pipe portion 31 is respectively arranged to be connected to the support cylinder shell 4 and the moving disk 5 in a penetrating manner. The middle of the peripheral side of the pipe portion 31 is arranged to be connected to the support cylinder shell 4, and the pipe portion 31 is respectively arranged to be connected to the built-in ultrasonic sensor 1 and the inner extension frame 7 in a receiving manner. The outer end face of the flange portion 32 is arranged to be in contact connection with the heat insulation pad 92, and the receiving hole body I 33 is arranged to be connected to the inner extension frame 7.

[0058] Through the intermediate pipe 3, support connection points for the built-in ultrasonic sensor 1, the support cylinder shell 4, the moving disk 5, the inner extension frame 7 and the heat insulation pad 92 are formed. By the pipe portion 31, the connection with the built-in ultrasonic sensor 1 is realized, the connection with the support cylinder shell 4 is realized, the connection with the moving disk 5 is realized. By the pipe portion 31 and the receiving hole body I 33, the connection with the inner extension frame 7 is realized. By the flange portion 32, the connection with the heat insulation pad 92 is realized. Its technical purpose is to be used as a support carrier for the support cylinder shell 4, the moving disk 5, the inner extension frame 7 and the heat insulation pad 92.

[0059] In this embodiment, the pipe portion 31 is arranged as a circular cylinder, and the receiving hole body I 33 is arranged as a long hole. The receiving hole body I 33 is arranged to be distributed at intervals along the peripheral contour line of the pipe portion 31.

[0060] Its technical purpose is to realize pipe body support for the support cylinder shell 4 and the moving disk 5, accommodation groove support for the inner extension frame 7 and end face support for the heat insulation pad 92.

[0061] In this embodiment, the support cylinder shell 4 is arranged to include a cylinder portion 41 and a ring portion 42, and a receiving hole body II 43 is arranged at the peripheral side edge of the cylinder portion 41. The outer side wall of the ring portion 42 is arranged to be connected to the middle of the inner wall of the cylinder portion 41, and the inner side wall of the ring portion 42 is arranged to be connected to the intermediate pipe 3. The cylinder portion 41 is arranged to be connected to the moving cylinder shell 9 in a penetrating manner, and the peripheral side of the cylinder portion 41 is arranged to be in contact connection with the tightening screw 91. The end face of the ring portion 42 is arranged to be connected to the connecting bolt and nut 6, and the receiving hole body II 43 is arranged to be connected to the outer extension frame 8.

[0062] By means of the support cylinder shell 4, support connection points for the intermediate pipe 3, connecting bolt and nut 6, moving cylinder shell 9, outer extension frame 8 and jacking screw 91 are formed. The ring part 42 realizes the connection with the intermediate pipe 3 and the connection with the connecting bolt and nut 6. The cylinder part 41 realizes the connection with the moving cylinder shell 9 and the connection with the jacking screw 91. The accommodating hole body II 43 realizes the connection with the outer extension frame 8. Its technical purpose is: to be used as a support carrier for the connecting bolt and nut 6, moving cylinder shell 9, outer extension frame 8 and jacking screw 91.

[0063] In this embodiment, the cylinder part 41 is arranged as a circular tubular body and the ring part 42 is arranged as an annular sheet body. The accommodating hole body II 43 is arranged as a long hole body and the accommodating hole body II 43 is arranged to be distributed at intervals along the peripheral contour line of the cylinder part 41.

[0064] Its technical purpose is: to realize pipe body support for the moving cylinder shell 9 and the jacking screw 91, accommodating groove support for the outer extension frame 8 and end face support for the connecting bolt and nut 6.

[0065] In this embodiment, the moving disk 5 is arranged as a circular block with through holes at the edge and a through hole in the middle, and the middle through hole on the moving disk 5 is arranged to be connected to the intermediate pipe 3. The edge through holes on the moving disk 5 are arranged to be connected to the bolts of the connecting bolt and nut 6, and the end face edge of the moving disk 5 is arranged to be in contact connection with the nut of the connecting bolt and nut 6. The inner side of the end face of the moving disk 5 is arranged to be connected to the inner extension frame 7.

[0066] By means of the moving disk 5, support connection points for the intermediate pipe 3, connecting bolt and nut 6 and inner extension frame 7 are formed. The moving disk 5 realizes the connection with the intermediate pipe 3, the connection with the connecting bolt and nut 6 and the connection with the inner extension frame 7. Its technical purpose is: to be used as one of the components for driving the inner extension frame 7 to move in the intermediate pipe 3.

[0067] In this embodiment, the inner end of the bolt of the connecting bolt and nut 6 is arranged to be connected to the support cylinder shell 4 and the outer end of the bolt of the connecting bolt and nut 6 is arranged to be connected to the moving disk 5 in a penetrating manner. The inner end faces of the inner and outer nuts of the connecting bolt and nut 6 are arranged to be in contact connection with the moving disk 5 and the bolt of the connecting bolt and nut 6 is arranged as a light column bolt. The inner and outer nuts of the connecting bolt and nut 6 are respectively arranged as hexagonal nuts.

[0068] By means of the connecting bolt and nut 6, support connection points for the support cylinder shell 4 and the moving disk 5 are formed. The connecting bolt and nut 6 realizes the connection with the support cylinder shell 4 and the connection with the moving disk 5. Its technical purpose is: to be used as the second component for driving the inner extension frame 7 to move in the intermediate pipe 3.

[0069] In this embodiment, the inner extension frame 7 is arranged to include a rod part I 71, a rod part II 72 and a spring part 73, and a receiving hole body III 74 is arranged at the end of the inner horizontal part of the rod part I 71. The receiving hole body III 74 is arranged to be connected to the inner end of the rod part II 72, and the inner end of the rod part II 72 is arranged to be connected to the spring part 73 in a penetrating manner. One end surface of the inner side of the end of the inner horizontal part of the rod part I 71 and one end of the spring part 73 are respectively arranged to be in contact connection with the inner end of the rod part II 72, and the other end of the spring part 73 is arranged to be in contact connection with the outer side surface of the end of the inner horizontal part of the rod part I 71. The outer end of the outer horizontal part of the rod part I 71 is arranged to be connected to the moving disk 5, and the vertical part of the rod part I 71 is arranged to be connected to the middle pipe 3 in a penetrating manner. The outer end of the rod part II 72 is arranged to be connected to the built-in ultrasonic sensor 1.

[0070] Through the inner extension frame 7, support connection points for the built-in ultrasonic sensor 1, the middle pipe 3 and the moving disk 5 are formed. Through the rod part II 72, the connection with the built-in ultrasonic sensor 1 is realized. Through the rod part I 71, the connection with the middle pipe 3 is realized, and the connection with the moving disk 5 is realized. Through the spring part 73 and the receiving hole body III 74, the elastic connection treatment between the rod part II 72 and the rod part I 71 is realized. Its technical purpose is: to be used as a support carrier for the built-in ultrasonic sensor 1.

[0071] In this embodiment, the rod part I 71 is arranged as a U-shaped rod body, and the rod part II 72 is arranged as a rod body with an annular groove at the inner end. The inner wall of the annular groove of the rod part II 72 is arranged to be in contact connection with one end of the spring part 73, and the outer wall of the annular groove of the rod part II 72 is arranged to be in contact connection with the inner side surface of the end of the inner horizontal part of the rod part I 71. The spring part 73 is arranged as a columnar spring, and the receiving hole body III 74 is arranged as a hole body.

[0072] Its technical purpose is: to realize the support of the elastic extension component for the built-in ultrasonic sensor 1.

[0073] In this embodiment, the moving cylinder shell 9 is arranged as a circular tubular body with a threaded hole body in the middle of the peripheral side surface. The threaded hole body of the moving cylinder shell 9 is arranged to be in threaded connection with the tightening screw rod 91. The outer edge of the peripheral side surface of the moving cylinder shell 9 is arranged to be connected to the outer extension frame 8 through an intermediate connecting rod, and the moving cylinder shell 9 is arranged to be in a sleeved connection with the support cylinder shell 4.

[0074] Through the moving cylinder shell 9, support connection points for the support cylinder shell 4, the outer extension frame 8 and the tightening screw rod 91 are formed. Through the moving cylinder shell 9, the connection with the support cylinder shell 4 is realized, the connection with the outer extension frame 8 is realized, and the connection with the tightening screw rod 91 is realized. Its technical purpose is: to be used as a component for driving the outer extension frame 8 to move on the middle pipe 3.

[0075] In this embodiment, the tightening screw 91 is set as an internal hexagonal bolt and the tightening screw 91 is set to be threadedly connected to the moving cylinder shell 9, and the inner end face of the tightening screw 91 is set to be in contact connection with the support cylinder shell 4.

[0076] Through the tightening screw 91, a support connection point for the support cylinder shell 4 and the moving cylinder shell 9 is formed. By the tightening screw 91, the connection with the support cylinder shell 4 is achieved, and the connection with the moving cylinder shell 9 is achieved. Its technical purpose is: to be used as a component for connecting the moving cylinder shell 9 and the support cylinder shell 4.

[0077] In this embodiment, the external extension frame 8 is set to include a rod part III 81, a rod part IV 82, a sleeve part 83, an ear seat part 84, a rod part V 85, a screw part 86, and a compression nut part 87. And a receiving hole body IV 88 is provided on the vertical part of the rod part V 85. The inner end head of the rod part III 81 is set to be connected to the transverse end head of the rod part IV 82 through a pin shaft, and the transverse part of the rod part IV 82 is set to be connected to the sleeve part 83 in a penetrating manner. The outer end face of the sleeve part 83 is set to be connected to the ear seat part 84, and the inclined end head of the rod part V 85 is set to be connected to the ear seat part 84 through a pin shaft. The screw part 86 is set to be connected to the receiving hole body IV 88 in a penetrating manner, and the inner end face of the screw part 86 is set to be connected to the outer end face of the rod part III 81. The compression nut part 87 is set to be threadedly connected to the screw part 86, and the inner end face of the compression nut part 87 is set to be in contact connection with the outer end face of the vertical part of the rod part V 85. The vertical end head of the rod part IV 82 is set to be connected to the external ultrasonic sensor 2, and the rod part III 81 is set to be connected to the support cylinder shell 4 in a penetrating manner. The inner end face of the rod part III 81 is set to be connected to the moving cylinder shell 9 through an intermediate connecting rod.

[0078] Through the external extension frame 8, a support connection point for the external ultrasonic sensor 2, the support cylinder shell 4, and the moving cylinder shell 9 is formed. By the rod part IV 82, the connection with the external ultrasonic sensor 2 is achieved. By the rod part III 81, the connection with the support cylinder shell 4 is achieved, and the connection with the moving cylinder shell 9 is achieved. By the sleeve part 83, the ear seat part 84, the rod part V 85, the screw part 86, the compression nut part 87, and the receiving hole body IV 88, a swing connection process of the rod part IV 82 on the rod part III 81 is achieved. Its technical purpose is: to be used as a support carrier for the external ultrasonic sensor 2.

[0079] In this embodiment, the rod part III 81 is set as a straight rod-shaped body, the rod part IV 82 and the rod part V 85 are respectively set as L-shaped rod-shaped bodies, the sleeve part 83 is set as a tubular body, the ear seat part 84 is set as a double-plate ear seat, the screw part 86 is set as a light column bolt, the compression nut part 87 is set as a hexagonal nut, and the receiving hole body IV 88 is set as a long strip hole.

[0080] Its technical purpose is to realize the swing frame support for the external ultrasonic sensor 2.

[0081] In this embodiment, the heat insulation pad 92 is set as a glass fiber heat insulation blanket block with a through-hole body, and the inner end face of the heat insulation pad 92 is set to be in contact connection with the middle pipe 3.

[0082] Through the heat insulation pad 92, a support connection point for the middle pipe 3 is formed. By the heat insulation pad 92, the connection with the middle pipe 3 is realized. Its technical purpose is to be used as a component for heat insulation connection between the middle pipe 3 and the high-temperature pipe.

[0083] In this embodiment, the built-in ultrasonic sensor 1 and the external ultrasonic sensor 2 are arranged in a supporting manner according to the telescopic component with the middle pipe 3, the support cylinder shell 4, the moving disk 5, the connecting bolt and nut 6, the inner extension frame 7, the outer extension frame 8, the moving cylinder shell 9, and the tightening screw 91, and the built-in ultrasonic sensor 1, the external ultrasonic sensor 2, the middle pipe 3, the support cylinder shell 4, the moving disk 5, the connecting bolt and nut 6, the inner extension frame 7, the outer extension frame 8, the moving cylinder shell 9, and the tightening screw 91 are arranged in a middle heat insulation manner with the heat insulation pad 92. Two heat insulation pads 92 are arranged on the middle pipe 3. The center lines of the middle pipe 3, the support cylinder shell 4, the moving disk 5, the moving cylinder shell 9, and the heat insulation pad 92 are arranged on the same straight line. The rod part III 81 is set to be connected with the accommodating hole body II 43, and the rod part I 71 is set to be connected with the accommodating hole body I 33.

[0084] In this embodiment, one moving disk 5, three connecting bolt and nut 6, three inner extension frames 7, and three built-in ultrasonic sensors 1 are set to form a group of inner detection components. Three external ultrasonic sensors 2, three outer extension frames 8, one moving cylinder shell 9, and three tightening screws 91 are set to form a group of outer detection components. The two groups of inner detection components and the two groups of outer detection components are respectively arranged between the middle pipe 3 and the support cylinder shell 4, and the two groups of inner detection components are arranged in a staggered and spaced manner along the peripheral contour line of the middle pipe 3.

[0085] Its technical purpose is to realize the simultaneous high-temperature pipe creep fatigue detection for the high-temperature pipes located on both sides of the valve.

[0086] The following combines the embodiments to further describe the present invention. The following embodiments are intended to illustrate the present invention rather than further limit the present invention.

[0087] A creep fatigue detection method for high-temperature pipelines in the operating state, the steps of which are as follows: When creep fatigue detection of a high-temperature pipeline is required, when the high-temperature pipeline stops conveying work, remove the valve located on the high-temperature pipeline, place the intermediate pipeline 3 between the high-temperature pipelines on both sides of the valve, place the heat insulation pad 92 between the flange part 32 and the high-temperature pipeline, and connect the flange part 32 and the high-temperature pipeline through connecting bolts and nuts, so as to install the intermediate pipeline 3 between the high-temperature pipelines on both sides of the valve. Rotate the jacking screw 91 in the threaded hole body of the moving cylinder shell 9, separate the inner end face of the jacking screw 91 from the peripheral side face of the cylinder part 41, move the moving cylinder shell 9 outward on the cylinder part 41, and move the rod part III 81 outward in the receiving hole body II 43. When the moving cylinder shell 9 is located on the edge of the cylinder part 41, rotate the jacking screw 91 in the threaded hole body of the moving cylinder shell 9 in the reverse direction, make the inner end face of the jacking screw 91 act on the peripheral side face of the cylinder part 41, rotate the pressing nut part 87 on the screw part 86, separate the inner end face of the pressing nut part 87 from the outer end face of the vertical part of the rod part V 85, turn the rod part IV 82 outward, move the sleeve part 83 on the horizontal part of the rod part IV 82, and move the screw part 86 in the receiving hole body IV 88, so that the moving disk 5 is in an open space. Rotate the inner nut of the connecting bolt and nut 6 on the bolt of the connecting bolt and nut 6, move the inner nut of the connecting bolt and nut 6 inward on the bolt of the connecting bolt and nut 6, move the moving disk 5 inward on the bolt of the connecting bolt and nut 6, move the vertical part of the rod part I 71 inward in the receiving hole body I 33, move the rod part II 72 into the high-temperature pipeline, and under the elastic energy storage action of the spring part 73, move the inner end head of the rod part II 72 outward in the receiving hole body III 74, so that the built-in ultrasonic sensor 1 acts on the inner wall of the high-temperature pipeline. Rotate the outer nut of the connecting bolt and nut 6 on the bolt of the connecting bolt and nut 6, move the outer nut of the connecting bolt and nut 6 inward on the bolt of the connecting bolt and nut 6, make the inner end faces of the inner and outer nuts of the connecting bolt and nut 6 act on the edge of the end face of the moving disk 5 respectively, turn the rod part IV 82 inward, move the sleeve part 83 in the reverse direction on the horizontal part of the rod part IV 82, move the screw part 86 in the reverse direction in the receiving hole body IV 88, so that the external ultrasonic sensor 2 acts on the outer wall of the high-temperature pipeline. Rotate the pressing nut part 87 on the screw part 86 in the reverse direction, make the inner end face of the pressing nut part 87 act on the outer end face of the vertical part of the rod part V 85, and perform creep fatigue detection on the high-temperature pipeline by the built-in ultrasonic sensor 1 and the external ultrasonic sensor 2. After the built-in ultrasonic sensor 1 and the external ultrasonic sensor 2 complete the creep fatigue detection of the high-temperature pipeline, separate the inner end face of the pressing nut portion 87 from the outer end face of the vertical portion of the rod portion V85, turn the rod portion IV82 outwards, place the moving disk 5 in the open space, rotate the outer nut of the connecting bolt nut 6 in the reverse direction on the bolt of the connecting bolt nut 6, move the outer nut of the connecting bolt nut 6 outwards on the bolt of the connecting bolt nut 6, move the moving disk 5 outwards on the bolt of the connecting bolt nut 6, move the vertical portion of the rod portion I71 outwards in the receiving hole body I33, move the rod portion II72 into the pipe portion 31, under the elastic energy storage effect of the spring portion 73, move the inner end head of the rod portion II72 outwards in the receiving hole body III74, place the built-in ultrasonic sensor 1 on the inner wall of the pipe portion 31, rotate the inner nut of the connecting bolt nut 6 in the reverse direction on the bolt of the connecting bolt nut 6, move the inner nut of the connecting bolt nut 6 outwards on the bolt of the connecting bolt nut 6, make the inner end faces of the inner and outer nuts of the connecting bolt nut 6 act on the edge of the end face of the moving disk 5 respectively, separate the inner end face of the tightening screw rod 91 from the peripheral side face of the cylinder portion 41, move the moving cylinder shell 9 inwards on the cylinder portion 41, move the rod portion III81 inwards in the receiving hole body II43, when the moving cylinder shell 9 is located in the middle of the cylinder portion 41, turn the rod portion IV82 inwards, place the external ultrasonic sensor 2 on the outer wall of the pipe portion 31, then make the inner end face of the pressing nut portion 87 act on the outer end face of the vertical portion of the rod portion V85, make the inner end face of the tightening screw rod 91 act on the peripheral side face of the cylinder portion 41, disassemble the flange portion 32 and the high-temperature pipeline through the connecting bolt nut, take out the intermediate pipeline 3 from between the high-temperature pipelines on both sides of the valve, and reinstall the valve between the high-temperature pipelines.

[0088] When verifying the present invention, the inventor abandoned the prior art features of placing the built-in ultrasonic sensor on the inner wall of the middle pipeline and the external ultrasonic sensor on the outer wall of the high-temperature pipeline port. First, the technical feature of converting between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline was proposed, obtaining the first unexpected technical effect: the measurement point and the installation point are no longer in the same position, improving the effect of creep fatigue detection of the high-temperature pipeline and extending the service life of the built-in ultrasonic sensor 1 and the external ultrasonic sensor 2. The second unexpected technical effect was obtained: realizing creep fatigue detection on the high-temperature pipeline in the installed working state without disassembly, improving the efficiency of creep fatigue detection of the high-temperature pipeline and the working efficiency of the high-temperature pipeline. The third unexpected technical effect was obtained: realizing creep fatigue detection by the built-in ultrasonic sensor 1 and the external ultrasonic sensor 2, realizing electrical signal detection, and overcoming the subjective judgment of the operator. The fourth unexpected technical effect was obtained: realizing the connection between the middle pipeline 3 and the support cylinder shell 4 and the high-temperature pipeline, realizing the support of the middle annular disc body and the inner and outer pipe bodies, realizing the all-round installation of the displacement frame assembly, and increasing the creep fatigue detection points for the high-temperature pipeline. The fifth unexpected technical effect was obtained: realizing the support of the built-in ultrasonic sensor 1 by the moving disc 5, the connecting bolt and nut 6, and the inner extension frame 7, meeting the setting of the inner wall extension measurement point of the high-temperature pipeline. The sixth unexpected technical effect was obtained: realizing the support of the external ultrasonic sensor 2 by the outer extension frame 8, the moving cylinder shell 9, and the tightening screw 91, meeting the setting of the outer wall distribution measurement point of the high-temperature pipeline. The seventh unexpected technical effect was obtained: realizing heat insulation treatment between the middle pipeline 3 and the high-temperature pipeline by the heat insulation pad 92, preventing the temperature of the middle pipeline 3 from being in a high value state, and cooling and protecting the built-in ultrasonic sensor 1 and the external ultrasonic sensor 2. The eighth unexpected technical effect was obtained: realizing the technical solution of introducing measurement points on the inner and outer walls of the high-temperature pipeline while maintaining the original state of the high-temperature pipeline, accurately performing segmented creep fatigue detection on the high-temperature pipeline conveying line, and providing support data for the safe operation of the high-temperature pipeline conveying line.

[0089] In the second embodiment of the present invention, the ultrasonic sensor group, the tube assembly, and the displacement frame assembly are interconnected in a manner of converting between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline.

[0090] In this embodiment, the displacement frame assembly is connected to the ultrasonic sensor group and the tube assembly in a manner of reinstallation on the high-temperature pipeline.

[0091] In this embodiment, the ultrasonic sensor group is arranged to include an internal ultrasonic sensor 1 and an external ultrasonic sensor 2.

[0092] In this embodiment, the tube assembly is arranged to include an intermediate pipe 3 and a support cylinder shell 4.

[0093] In this embodiment, the displacement frame assembly is arranged to include a moving disk 5, connecting bolts and nuts 6, an internal extension frame 7, an external extension frame 8, a moving cylinder shell 9, and a tightening screw 91.

[0094] In this embodiment, a first accessory device is further included and the first accessory device is arranged on the tube assembly. The first accessory device is arranged as a heat insulation pad 92.

[0095] The second embodiment of the present invention is based on the first embodiment. In the second embodiment of the present invention, the steps are as follows: The ultrasonic sensor group realizes creep fatigue detection of high-temperature pipelines with ultrasonic waves as detection signals. The tube assembly realizes the formation of a support carrier between high-temperature pipelines. The displacement frame assembly realizes reinstallation of the ultrasonic sensor group on the high-temperature pipeline, and realizes the conversion between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline.

[0096] The second embodiment of the present invention is based on the first embodiment.

[0097] The present invention has the following characteristics: 1. Due to the design of the ultrasonic sensor group, the tube assembly, and the displacement frame assembly, through the ultrasonic sensor group, creep fatigue detection of high-temperature pipelines is realized with ultrasonic waves as detection signals. Through the tube assembly, a support carrier is formed between high-temperature pipelines. Through the displacement frame assembly, reinstallation of the ultrasonic sensor group on the high-temperature pipeline is realized, and the conversion between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline is realized, solving the technical problem that the internal ultrasonic sensor is placed on the inner wall of the intermediate pipe and the external ultrasonic sensor is placed on the outer wall of the high-temperature pipeline port, thus improving the accuracy of creep fatigue detection of high-temperature pipelines.

[0098] 2. Due to the design of the internal ultrasonic sensor 1 and the external ultrasonic sensor 2, ultrasonic sensors are placed on the inner and outer walls of the high-temperature pipeline.

[0099] 3. Due to the design of the intermediate pipe 3 and the support cylinder shell 4, an annular support carrier is formed between high-temperature pipelines.

[0100] 4. By designing the mobile disk 5, connecting bolts and nuts 6, inner extension frame 7, outer extension frame 8, mobile cylinder shell 9 and tightening screw 91, mobile support inside the high-temperature pipeline and combined mobile and swing support outside the high-temperature pipeline are realized.

[0101] 5. By designing the heat insulation pad 92, heat insulation treatment between the tube assembly and the high-temperature pipeline is realized.

[0102] 6. By designing the limitation of the numerical range for the structural shape, the numerical range is a technical feature in the technical solution of the present invention, rather than a technical feature obtained by formula calculation or through a finite number of tests. Tests show that the technical features of this numerical range have achieved good technical effects.

[0103] 7. By designing the technical features of the present invention, through the combined action of the technical features alone and with each other, tests show that each performance index of the present invention is at least 1.7 times that of the existing performance indexes, and it has good market value through evaluation.

[0104] There are also other technical features related to the ultrasonic sensor group, tube assembly and displacement frame assembly that are connected between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline, which are all one of the embodiments of the present invention. And the technical features of the above-mentioned embodiments can be combined arbitrarily. To meet the requirements of the Patent Law, Patent Implementing Regulations and Examination Guidelines, the embodiments of all possible combinations of each technical feature in the above-mentioned embodiments will not be described anymore.

[0105] The above embodiments are only one implementation form of the high-temperature pipeline creep fatigue detection device and method based on the use state provided by the present invention. Other deformations according to the solution provided by the present invention, adding or reducing features or steps therein, or applying the present invention to other technical fields close to the present invention all fall within the protection scope of the present invention.

Claims

1. A high temperature pipeline creep fatigue detection device based on the use state, characterized by: The invention comprises an ultrasonic sensor group for performing creep fatigue detection on high-temperature pipelines, a tube assembly arranged between the high-temperature pipelines, and a displacement frame assembly arranged between the tube assembly and the ultrasonic sensor group.

2. The high temperature pipeline creep fatigue detection device based on the use state according to claim 1 is characterized in that: The ultrasonic sensor group, the tube assembly and the displacement frame assembly are connected to each other in a manner that switches between an initial installation position placed outside the high-temperature pipeline and a final measurement position placed on the high-temperature pipeline.

3. The high temperature pipeline creep fatigue detection device based on the use state according to claim 2 is characterized in that: The displacement frame assembly is connected to the ultrasonic sensor group and the tube assembly in a manner that is reinstalled on the high-temperature pipeline.

4. The high temperature pipeline creep fatigue detection device in use according to claim 1 is characterized in that: The ultrasonic sensor group is configured to include a built-in ultrasonic sensor (1) and an external ultrasonic sensor (2). Or, the tube assembly is configured to include an intermediate pipe (3) and a supporting tube shell (4), Alternatively, the displacement frame assembly is configured to include a moving plate (5), connecting bolts and nuts (6), an inner extension frame (7), an outer extension frame (8), a moving cylinder shell (9) and a tightening screw (91), Or, it further comprises a first accessory device and the first accessory device is arranged on the tube assembly, and the first accessory device is arranged as a heat insulation pad (92).

5. The high temperature pipeline creep fatigue detection device based on the use state according to claim 4 is characterized in that: A supporting cylinder shell (4), a moving disk (5) and a heat insulating pad (92) are respectively arranged on the intermediate pipe (3); connecting bolts and nuts (6) are arranged between the moving disk (5) and the supporting cylinder shell (4); an inner extension frame (7) is arranged between the moving disk (5) and the intermediate pipe (3); a moving cylinder shell (9) is arranged on the supporting cylinder shell (4); a tightening screw (91) is arranged between the moving cylinder shell (9) and the supporting cylinder shell (4); an outer extension frame (8) is arranged between the moving cylinder shell (9) and the intermediate pipe (3); a built-in ultrasonic sensor (1) is arranged between the inner extension frame (7) and the intermediate pipe (3); and an external ultrasonic sensor (2) is arranged between the outer extension frame (8) and the intermediate pipe (3).

6. The high temperature pipeline creep fatigue detection device in use according to claim 5 is characterized in that: The internal ultrasonic sensor (1) and the external ultrasonic sensor (2) are respectively configured as ultrasonic sensors having heat-insulating shells, and the internal ultrasonic sensor (1) is configured to be immersed in the middle pipe (3), the shell of the internal ultrasonic sensor (1) is configured to be connected to the inner extension frame (7), and the shell of the external ultrasonic sensor (2) is configured to be connected to the outer extension frame (8), Alternatively, the intermediate pipe (3) is configured to include a pipe portion (31) and a flange portion (32), and a receiving hole body I (33) is provided at the peripheral side edge of the pipe portion (31), the outer side surface of the port of the pipe portion (31) is configured to be connected to the inner wall of the flange portion (32), and the pipe portion (31) is configured to be through-connected to the support cylinder shell (4) and the movable plate (5), the middle of the peripheral side surface of the pipe portion (31) is configured to be connected to the support cylinder shell (4), and the pipe portion (31) is configured to be received and connected to the built-in ultrasonic sensor (1) and the inner extension frame (7), the outer end surface of the flange portion (32) is configured to be contact-connected to the thermal insulation pad (92), and the receiving hole body I (33) is configured to be connected to the inner extension frame (7), Alternatively, the tube portion (31) is configured as a circular cylindrical body and the receiving hole body I (33) is configured as a long hole body, and the receiving hole body I (33) is configured to be arranged and distributed at intervals along the peripheral contour line of the tube portion (31), Alternatively, the supporting cylinder shell (4) is configured to include a cylinder portion (41) and a ring portion (42), and a receiving hole body II (43) is provided on the peripheral side edge of the cylinder portion (41), the outer side wall of the ring portion (42) is configured to be connected to the middle of the inner wall of the cylinder portion (41), and the inner side wall of the ring portion (42) is configured to be connected to the intermediate pipe (3), the cylinder portion (41) is configured to be connected to the movable cylinder shell (9) in a through-type manner, and the peripheral side surface of the cylinder portion (41) is configured to be connected to the tightening screw (91) in a contacting manner, the end surface of the ring portion (42) is configured to be connected to the connecting bolt nut (6), and the receiving hole body II (43) is configured to be connected to the outer extension frame (8), Or, the barrel (41) is configured as a circular tubular body and the ring (42) is configured as an annular sheet body, the receiving hole body II (43) is configured as a long hole body and the receiving hole body II (43) is configured to be arranged and distributed at intervals along the peripheral contour line of the barrel (41), Alternatively, the movable plate (5) is configured as a ring-shaped block having a through hole at the edge and a through hole in the middle, and the middle through hole on the movable plate (5) is configured to be connected to the middle pipe (3), the edge through hole on the movable plate (5) is configured to be connected to the bolts of the connecting bolts and nuts (6), and the end surface edge of the movable plate (5) is configured to be connected to the nut contacting connection of the connecting bolts and nuts (6), and the inner side of the end surface of the movable plate (5) is configured to be connected to the inner extension frame (7), Alternatively, the inner end of the bolt of the connecting bolt nut (6) is arranged to be connected to the supporting cylinder shell (4) and the outer end of the bolt of the connecting bolt nut (6) is arranged to be connected to the moving disk (5) in a through-type manner, the inner end surfaces of the inner and outer nuts of the connecting bolt nut (6) are arranged to be connected to the moving disk (5) in a contacting manner and the bolt of the connecting bolt nut (6) is arranged to be a plain bolt, and the inner and outer nuts of the connecting bolt nut (6) are respectively arranged to be hexagonal nuts, Or, the inner extension frame (7) is configured to include a rod portion I (71), a rod portion II (72) and a spring portion (73), and a receiving hole body III (74) is provided at the inner transverse end of the rod portion I (71), the receiving hole body III (74) is configured to be connected to the inner end of the rod portion II (72), and the inner end of the rod portion II (72) is configured to be connected to the spring portion (73) in a through-type manner, the inner side surface of the inner transverse end of the rod portion I (71) and one of the ends of the spring portion (73) are respectively configured to be connected to the inner end of the rod portion II (72) in a contacting manner, and the other end of the spring portion (73) is configured to be connected to the outer side surface of the inner transverse end of the rod portion I (71), the outer transverse end of the rod portion I (71) is configured to be connected to the movable disk (5), and the vertical portion of the rod portion I (71) is configured to be connected to the intermediate pipe (3) in a through-type manner, and the outer end of the rod portion II (72) is configured to be connected to the built-in ultrasonic sensor (1), Or, the rod part I (71) is set as a C-shaped rod body and the rod part II (72) is set as a rod body with an annular groove at the inner end. The inner wall of the annular groove of the rod part II (72) is set to be in contact connection with one end of the spring part (73), and the outer wall of the annular groove of the rod part II (72) is set to be in contact connection with the inner side surface of the end of the inner horizontal part of the rod part I (71). The spring part (73) is set as a columnar spring and the accommodating hole body III (74) is set as a hole body. Or, the moving cylinder shell (9) is set as a circular tubular body with a threaded hole in the middle of the peripheral side surface, and the threaded hole of the moving cylinder shell (9) is set to be in threaded connection with the tightening screw rod (91). The outer edge of the peripheral side surface of the moving cylinder shell (9) is set to be connected to the outer extending frame (8) through an intermediate connecting rod, and the moving cylinder shell (9) is set to be in a sleeved connection with the supporting cylinder shell (4). Or, the tightening screw rod (91) is set as an internal hexagonal bolt and the tightening screw rod (91) is set to be in threaded connection with the moving cylinder shell (9). The inner end face of the tightening screw rod (91) is set to be in contact connection with the supporting cylinder shell (4). Or, the outer extending frame (8) is set to include a rod part III (81), a rod part IV (82), a sleeve part (83), an ear seat part (84), a rod part V (85), a screw rod part (86) and a pressing nut part (87), and an accommodating hole body IV (88) is provided on the vertical part of the rod part V (85). The inner end of the rod part III (81) is set to be connected to the horizontal end of the rod part IV (82) through a pin shaft, and the horizontal part of the rod part IV (82) is set to be in a penetrating connection with the sleeve part (83). The outer end face of the sleeve part (83) is set to be connected to the ear seat part (84), and the inclined end of the rod part V (85) is set to be connected to the ear seat part (84) through a pin shaft. The screw rod part (86) is set to be in a penetrating connection with the accommodating hole body IV (88), and the inner end face of the screw rod part (86) is set to be connected to the outer end face of the rod part III (81). The pressing nut part (87) is set to be in threaded connection with the screw rod part (86), and the inner end face of the pressing nut part (87) is set to be in contact connection with the outer end face of the vertical part of the rod part V (85). The vertical end of the rod part IV (82) is set to be connected to the external ultrasonic sensor (2), and the rod part III (81) is set to be in a penetrating connection with the supporting cylinder shell (4). The inner end face of the rod part III (81) is set to be connected to the moving cylinder shell (9) through an intermediate connecting rod. Or, the rod part III (81) is set as a straight rod body, the rod parts IV (82) and V (85) are respectively set as L-shaped rod bodies, the sleeve part (83) is set as a tubular body, the ear seat part (84) is set as a double-plate ear seat, the screw rod part (86) is set as a smooth shaft bolt, the pressing nut part (87) is set as a hexagonal nut, and the accommodating hole body IV (88) is set as a long hole. Or, the heat insulation pad (92) is set as a glass fiber heat insulation blanket block with a through hole body, and the inner end face of the heat insulation pad (92) is set to be in contact connection with the intermediate pipeline (3).

7. The high temperature pipeline creep fatigue detection device in use according to any one of claims 1 to 6, characterized in that: The internal ultrasonic sensor (1) and the external ultrasonic sensor (2) are arranged to be supported by the telescopic components and are distributed in a manner such that the intermediate pipe (3), the supporting shell (4), the movable plate (5), the connecting bolts and nuts (6), the inner extension frame (7), the outer extension frame (8), the movable shell (9) and the tightening screw (91). The internal ultrasonic sensor (1), the external ultrasonic sensor (2), the intermediate pipe (3), the supporting shell (4), the movable plate (5), the connecting bolts and nuts (6), the inner extension frame (7), the outer extension frame (8), the movable shell (9) and the tightening screw (91) are arranged to be insulated in the middle with the heat insulation pad (92). Alternatively, two heat insulating pads (92) are arranged on the middle pipe (3), the center line of the middle pipe (3), the center line of the supporting cylinder shell (4), the center line of the movable plate (5), the center line of the movable cylinder shell (9) and the center line of the heat insulating pad (92) are arranged on the same straight line, the rod portion III (81) is arranged to be connected to the receiving hole body II (43), and the rod portion I (71) is arranged to be connected to the receiving hole body I (33).

8. The high temperature pipeline creep fatigue detection device in use according to claim 5 is characterized in that: A movable plate (5), three connecting bolts and nuts (6), three internal extension frames (7) and three internal ultrasonic sensors (1) are arranged to form a group of internal detection components, and three external ultrasonic sensors (2), three external extension frames (8), a movable cylinder shell (9) and three tightening screws (91) are arranged to form a group of external detection components. The two groups of internal detection components and the two groups of external detection components are respectively arranged between the middle pipe (3) and the supporting cylinder shell (4), and the two groups of internal detection components are arranged to be staggered and spaced along the peripheral contour line of the middle pipe (3).

9. A method for detecting creep fatigue of a high temperature pipeline under use, characterized in that the steps are: The ultrasonic sensor group realizes creep fatigue detection of the high-temperature pipeline using ultrasonic waves as detection signals, the tube assembly realizes the formation of a supporting carrier between the high-temperature pipelines, and the displacement frame assembly realizes the reinstallation of the ultrasonic sensor group on the high-temperature pipeline, realizing the conversion between the initial installation position placed outside the high-temperature pipeline and the final measurement position placed on the high-temperature pipeline.

10. The method for detecting creep fatigue of a high temperature pipeline in use according to claim 9 is characterized in that the steps are: When creep fatigue testing of the high-temperature pipeline is required, when the high-temperature pipeline stops conveying, the valve on the high-temperature pipeline is disassembled, the intermediate pipeline (3) is placed between the high-temperature pipelines on both sides of the valve, the heat insulation pad (92) is placed between the flange portion (32) and the high-temperature pipeline, and the flange portion (32) and the high-temperature pipeline are connected by connecting bolts and nuts, so that the intermediate pipeline (3) is installed between the high-temperature pipelines on both sides of the valve, and the tightening screw (91) is rotated in the threaded hole of the movable cylinder shell (9), so that the inner end surface of the tightening screw (91) is separated from the peripheral side surface of the cylinder portion (41), so that the movable cylinder shell (9) moves outward on the cylinder portion (41), and the rod portion III ( 81) moves outward in the receiving hole body II (43), and when the moving cylinder shell (9) is located on the edge of the cylinder (41), the tightening screw (91) rotates in the opposite direction in the threaded hole body of the moving cylinder shell (9), so that the inner end surface of the tightening screw (91) acts on the peripheral side surface of the cylinder (41), and the clamping nut part (87) rotates on the screw part (86), so that the inner end surface of the clamping nut part (87) is separated from the outer end surface of the vertical part of the rod part V (85), so that the rod part IV (82) is turned outward, the sleeve part (83) moves on the horizontal part of the rod part IV (82), and the screw part (86) moves in the receiving hole body IV (88), so that the moving disk (5) is in the open space, so that the connecting bolt nut ( The inner nut of the connecting bolt nut (6) rotates on the bolt of the connecting bolt nut (6), so that the inner nut of the connecting bolt nut (6) moves inward on the bolt of the connecting bolt nut (6), so that the moving plate (5) moves inward on the bolt of the connecting bolt nut (6), and the vertical portion of the rod portion I (71) moves inward in the receiving hole body I (33), so that the rod portion II (72) moves into the high-temperature pipeline. Under the elastic energy storage action of the spring portion (73), the inner end of the rod portion II (72) moves outward in the receiving hole body III (74), so that the built-in ultrasonic sensor (1) acts on the inner wall of the high-temperature pipeline, so that the outer nut of the connecting bolt nut (6) rotates on the bolt of the connecting bolt nut (6), so that the connecting bolt The outer nut of the nut (6) moves inward on the bolt of the connecting bolt nut (6), so that the inner end faces of the inner and outer nuts of the connecting bolt nut (6) act on the end face edge of the moving plate (5) respectively, so that the rod part IV (82) turns inward, the sleeve part (83) moves in the opposite direction on the horizontal part of the rod part IV (82), and the screw part (86) moves in the opposite direction in the receiving hole body IV (88), so that the external ultrasonic sensor (2) acts on the outer wall of the high-temperature pipeline, and the clamping nut part (87) rotates in the opposite direction on the screw part (86), so that the inner end face of the clamping nut part (87) acts on the outer end face of the vertical part of the rod part V (85), and the internal ultrasonic sensor (1) and the external ultrasonic sensor (2) perform creep fatigue detection on the high-temperature pipeline.After the internal ultrasonic sensor (1) and the external ultrasonic sensor (2) complete the creep fatigue test on the high temperature pipeline, the inner end face of the clamping nut portion (87) is separated from the outer end face of the vertical portion of the rod portion V (85), the rod portion IV (82) is turned outward, the movable plate (5) is in the open space, the outer nut of the connecting bolt nut (6) is rotated in the opposite direction on the bolt of the connecting bolt nut (6), the outer nut of the connecting bolt nut (6) is moved outward on the bolt of the connecting bolt nut (6), and the movable plate (5) is moved on the connecting bolt nut (6). The vertical portion of the rod part I (71) moves outward in the receiving hole body I (33), so that the rod part II (72) moves into the tube part (31). Under the elastic energy storage action of the spring part (73), the inner end of the rod part II (72) moves outward in the receiving hole body III (74), so that the built-in ultrasonic sensor (1) is placed on the inner wall of the tube part (31), so that the inner nut of the connecting bolt nut (6) rotates in the opposite direction on the bolt of the connecting bolt nut (6), so that the connecting bolt The inner nut of the nut (6) moves outward on the bolt of the connecting bolt nut (6), so that the inner end surfaces of the inner and outer nuts of the connecting bolt nut (6) act on the end surface edge of the moving plate (5) respectively, so that the inner end surface of the tightening screw rod (91) is separated from the peripheral side surface of the barrel (41), so that the moving barrel shell (9) moves inward on the barrel (41), and the rod part III (81) moves inward in the receiving hole body II (43). When the moving barrel shell (9) is located in the middle of the barrel (41), the rod part IV (82) is turned inward, so that the external ultrasonic sensor (2) is placed on the outer wall of the pipe part (31), and then the inner end surface of the clamping nut part (87) acts on the outer end surface of the vertical part of the rod part V (85), and the inner end surface of the top screw (91) acts on the peripheral side surface of the barrel part (41). The flange part (32) and the high-temperature pipeline are disassembled by connecting bolts and nuts, and the intermediate pipeline (3) is taken out from between the high-temperature pipelines on both sides of the valve, and the valve is installed between the high-temperature pipelines.

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