Pipe penetrating tool and method for probe assembly

Abstract

According to the pipe penetrating tool for the probe assembly, the probe assembly comprises a probe and a cable, a cable combination hub is arranged at the end of the cable, and the pipe penetrating tool for the probe assembly is used for assisting the cable to penetrate through a cable guide pipe and is connected with the probe through the cable combination hub. The pipe penetrating tool for the probe assembly comprises a cable fixing base, a shell and a traction piece, the cable fixing base comprises a fixing groove, the fixing groove can be matched with a cable combination hub so that a cable can be installed on the cable fixing base, a cavity is formed in the shell, the cable fixing base and the cable installed on the cable fixing base can stretch into and be contained in the cavity from one end of the shell, and the traction piece is arranged on the shell. The traction part is fixedly connected with the shell, the traction part is arranged on the shell and used for being connected with a traction wire, the traction wire is arranged in the cable guide pipe in advance, and after the cable and the pipe penetrating tool for the probe assembly are installed, the pipe penetrating tool for the probe assembly penetrates through the cable guide pipe under traction of the traction wire, and pipe penetrating operation of the cable is completed. The invention further provides a probe assembly pipe penetrating method.

Description

Technical Field

[0001] The invention relates to the field of nondestructive testing equipment, and in particular to a pipe threading tool and method for a probe assembly. Background Art

[0002] Phased array inspection technology and array eddy current inspection technology are increasingly widely used at home and abroad, and their significant technical superiority has been demonstrated. Therefore, phased array inspection technology and array eddy current inspection technology have been developed and applied to the inspection of CRDM penetrations and J welds on the reactor pressure vessel top cover. In order to eliminate inspection blind spots as much as possible, improve the ability to detect linear defects with different orientations, and improve the qualitative, precise positioning and quantitative capabilities of crack-type defects, and at the same time have the ability to perform volume inspection of J-type welds from the inner wall of CRDM penetrations through ultrasonic phased arrays, expand the means of defect analysis in J-type welds, integrate the two technologies into a design, and develop matching integrated scanning equipment, so the inspection efficiency has also been greatly improved.

[0003] The integrated design enables more probe assemblies to be installed on the scanning device, but it also brings difficulties in installation and maintenance. Since the phased array probe assembly and array eddy current probe assembly have more array elements, each array element needs to be connected by a cable separately. The total number of core wires is expected to be greater than 150. In addition, there are other pipelines such as air pipes, water pipes, and cameras. These cables and pipelines must pass through a stainless steel cable duct that is about 2 meters long and has an inner diameter of 24mm. Due to the compact internal structure of the scanning device, the pipelines are densely arranged. After many installations and commissioning, it was found that it was difficult to thread the pipes during the installation of the integrated mounting base of the probe assembly and the corresponding pipelines, resulting in multiple reworks that affected efficiency, and the cables were easily damaged, resulting in poor signal transmission quality. Summary of the invention

[0004] An object of the present invention is to provide a pipe penetration tool for a probe assembly, which can improve the pipe penetration quality and efficiency.

[0005] In the above-mentioned pipe threading tool for the probe assembly, the probe assembly includes a probe and a cable, and a cable socket is provided at the end of the cable. The pipe threading tool for the probe assembly is used to assist the cable to pass through the cable conduit and connect with the probe through the cable socket. The pipe threading tool for the probe assembly includes:

[0006] A cable fixing seat, comprising a fixing groove, wherein the fixing groove can cooperate with the cable socket to install the cable on the cable fixing seat;

[0007] A shell having a cavity inside, wherein the cable fixing seat and the cable mounted thereon can extend from one end of the shell into and be accommodated in the cavity, and are fixedly connected to the shell; and a traction member, which is arranged on the shell and is used to connect the traction line;

[0008] Among them, the traction line is pre-arranged in the cable conduit. After the cable and the pipe threading tool for the probe assembly are installed, the pipe threading tool for the probe assembly passes through the cable conduit under the traction of the traction line to complete the cable pipe threading operation.

[0009] In one or more embodiments, the cable fixing seat includes a plurality of the fixing grooves, so as to install a plurality of the cables on the cable fixing seat.

[0010] In one or more embodiments, the plurality of fixing grooves are evenly distributed on the cable fixing seat in a spiral shape along the axial direction of the cable fixing seat.

[0011] In one or more embodiments, the pipe threading tool for the probe assembly further includes a housing base and a pipeline connector;

[0012] The pipeline connector is arranged on the housing base and is used to connect other pipelines;

[0013] The shell base is detachably connected to one end of the shell, and a through hole is provided on the shell base. In an assembled state, the cable portion extends from the through hole to the outside of the shell.

[0014] In one or more embodiments, a plurality of through holes are formed on the shell base, and positions of the plurality of through holes correspond to positions of the plurality of fixing grooves.

[0015] In one or more embodiments, the traction member is an eye bolt threadedly connected to the end of the housing.

[0016] In one or more embodiments, the shell is made of polymer material.

[0017] In one or more embodiments, the probe assembly is a phased array probe assembly and an array eddy current probe assembly, which is used to perform ultrasonic inspection of the inner wall of the CRDM pipe.

[0018] Another object of the present invention is to provide a method for threading a probe assembly through a pipe, which can improve the quality and efficiency of threading the pipe.

[0019] The probe assembly pipe threading method uses a pipe threading tool for a probe assembly as described in any one of claims 1 to 8 to assist the cable of the probe assembly to pass through the cable conduit and connect with the probe, and the pipe threading method comprises the following steps:

[0020] The traction wire is pre-placed in the cable conduit, and the traction wire extends from one end of the cable conduit close to the probe and extends from the other end;

[0021] Install the cable socket on the fixing groove of the cable fixing seat, and complete the assembly of the pipe threading tool for the probe assembly;

[0022] Connecting the traction wire to the traction member of the tube threading tool for the probe assembly;

[0023] Pulling one end of the pulling wire close to the cable conduit, so that the conduit threading tool for the probe assembly and the cable installed thereon pass through the cable conduit to reach the installation position;

[0024] The cable is removed from the tube threading tool for the probe assembly and connected to the probe.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] The above-mentioned pipe threading tool for the probe assembly can realize the rapid installation and disassembly of the probe assembly, effectively reduce the damage of the cable during the installation process, and reduce the failure rate. The pipe threading tool has a simple structure, is quick to install, and is easy to use on site. It can significantly improve the on-site work efficiency and reduce the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0028] Figure 1 Schematic diagram of a pipe threading tool for a probe assembly according to an embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of a pipe threading tool and a cable for a probe assembly according to an embodiment of the present application.

[0030] Figure 3 Detailed description of the invention is provided herein.

[0031] Figure 4 It is a schematic diagram of an implementation scenario of a pipe threading tool for a probe assembly according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with specific embodiments and drawings. More details are described in the following description to facilitate a full understanding of the present invention, but the present invention can obviously be implemented in a variety of other ways different from the description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment. It should be noted that these and other subsequent drawings are only examples, which are not drawn according to the conditions of equal proportions, and should not be used as a limitation on the protection scope of the actual requirements of the present invention.

[0033] In phased array inspection technology and array eddy current inspection technology, the use of integrated scanning equipment can greatly improve the efficiency of defect inspection. A large number of probes are installed on the integrated scanning equipment. For phased array probes and array eddy current probes, due to the large number of array elements and the need for each array element to be individually connected by cables, the total number of core wires exceeds 150 cores. Other pipelines such as water pipes, air pipes, and cameras need to be installed on the scanning equipment. These cables and pipelines need to pass through a narrow cable duct during the installation of the scanning equipment. At present, the pipe threading operation of cables and pipelines is manually installed by operators. Due to the large number of cables, the efficiency of the pipe threading operation is low. At the same time, there are also problems such as difficulty in pipe threading and easy damage to cables during installation, which affects the signal transmission quality of subsequent ultrasonic inspections.

[0034] To solve the above problems, according to one aspect of the present application, a pipe threading tool and a pipe threading method for a probe assembly 4 are provided, which can improve the pipe threading quality and efficiency of a cable 42. The probe assembly 4 includes a probe 41 and a cable 42, and a cable connector 43 is provided at the end of the cable 42. The pipe threading tool for the probe assembly 4 is used to assist the cable 42 to pass through the cable conduit 5 and connect to the probe 41 through the cable connector 43.

[0035] Figures 1 to 3 A specific embodiment of the pipe penetration tool for the probe assembly 4 provided in the present application is shown, and the pipe penetration tool is described below using this embodiment as an example.

[0036] In this embodiment, the probe assembly 4 is a phased array probe assembly and an array eddy current probe assembly, which is used to perform ultrasonic testing on the inner wall of the CRDM tube 10 .

[0037] The pipe threading tool for the probe assembly 4 includes a cable fixing seat 1, a shell 2 and a traction member 3. The cable fixing seat 1 includes a fixing groove 11, which can cooperate with the cable socket 43 to install the cable 42 on the cable fixing seat 1. The shell 2 has a cavity 21 inside. The cable fixing seat 1 and the cable 42 installed thereon can extend from one end of the shell 2 and be accommodated in the cavity 21, and are fixedly connected to the shell 2. The traction member 3 is arranged on the shell 2 for connecting a traction line (not shown in the figure), wherein the traction line is pre-arranged in the cable conduit 5. After the cable 42 and the pipe threading tool for the probe assembly 4 are installed, the pipe threading tool for the probe assembly 4 passes through the cable conduit 5 under the traction of the traction line to complete the pipe threading operation of the cable 42.

[0038] The above-mentioned pipe threading tool for the probe assembly 4 can realize the rapid installation and disassembly of the probe assembly 4, effectively reduce the damage of the cable 42 during the installation process, and reduce the failure rate. The pipe threading tool has a simple structure, is quickly installed, and is easy to use on site. It can significantly improve on-site work efficiency and reduce the labor intensity of operators.

[0039] The cable fixing seat 1 may include a plurality of fixing grooves 11, and the plurality of fixing grooves 11 may be evenly distributed on the cable fixing seat 1 in a spiral shape along the axial direction of the cable fixing seat 1, so as to install a plurality of cables 42 on the cable fixing seat 1, such as Figure 2 As shown, the cable fixing seat 1 of this structure can install multiple cables 42 on the cable fixing seat 1 in a uniform manner in the circumferential direction and the axial direction, so as to fully utilize the space in the shell cavity 21.

[0040] For details, please refer to Figure 1 and Figure 2 , respectively showing the pipe threading tool in an unloaded state and a state after the cable 42 is installed. In this embodiment, the cable socket 43 is a device-end pin header, which is used to connect with the end effector of the probe 41 to achieve fixed installation between the cable 42 and the probe 41. The cable 42 adopts a 32-core cable. The cable fixing seat 1 is provided with 5 fixing grooves 11, which can be respectively connected with the device-end pin headers of 5 cables 42, so that 5 sets of probe assemblies 4 can be assembled in one pipe threading operation, and the total number of core wires completed in the pipe threading exceeds 150 cores.

[0041] The pipe threading tool for the probe assembly 4 may also include a shell base 6 and a pipeline connector 7. The pipeline connector 7 is arranged on the shell base 6 and is used to connect other pipelines (not shown in the figure), such as pipelines for water pipes, air pipes, cameras and other devices. The shell base 6 is detachably connected to one end of the shell 2. A through hole (not shown in the figure) is opened on the shell base 6. In the assembled state, the cable 42 partially extends from the through hole to the outside of the shell 2.

[0042] Taking a water pipe as an example, during the ultrasonic inspection process, the phased array probe needs water as a coupling agent when inspecting the workpiece, and the water needs to be transported to the probe 41 through the water pipe. Therefore, the installation process of the ultrasonic inspection device also includes the pipe threading operation of the water pipe. The pipeline connector 7 can be a copper faucet. By installing the water pipe on the copper faucet, the water pipe can be synchronously passed through the cable guide 5 with the cable 42 during the pipe threading operation of the cable 42.

[0043] The housing base 6 is provided with a plurality of through holes, and the positions of the plurality of through holes correspond to the positions of the plurality of fixing grooves 11, so that the plurality of cables 42 installed in the plurality of fixing grooves 11 pass through the plurality of through holes on the housing base 6 respectively, thereby Figure 2 When the cable 42 and the pipe threading tool are installed, the cable 42 can be limited to prevent the cable 42 from shaking in the shell cavity 21.

[0044] In this embodiment, the traction member 3 is an eye bolt, which is threadedly connected to the end of the housing 2. In other embodiments, the traction member 3 of other structures can also be used, for example, the traction member 3 can be integrated with the housing 2, and the traction member 3 can be a hook-shaped structure. As long as the traction line can be connected with the traction member 3, the cable 42 can be passed through the cable conduit 5 under the traction of the traction line to complete the pipe threading operation.

[0045] The shell 2 can be a transparent shell 2 and can be made of polymer material, with high structural strength and lightness. At the same time, the hardness of the shell 2 is ensured to be lower than that of the cable conduit 5, protecting the conduit from being scratched during the pipe threading operation.

[0046] According to another aspect of the present application, a probe assembly pipe threading method is provided, wherein the pipe threading tool for the probe assembly 4 in one or more of the above embodiments is used to assist the cable 42 of the probe assembly 4 to pass through the cable conduit 5 and connect with the probe 41, and the probe assembly pipe threading method comprises the following steps:

[0047] A traction line is pre-placed in the cable conduit 5, and the traction line extends from one end of the cable conduit 5 close to the probe 41 and extends from the other end. The cable connector 43 is installed on the fixing groove 11 of the cable fixing seat 1, and the assembly of the pipe threading tool for the probe assembly 4 is completed. The traction line is connected to the traction part 3 of the pipe threading tool for the probe assembly 4, and the traction line is pulled close to one end of the cable conduit 5, so that the pipe threading tool for the probe assembly 4 and the cable 42 installed thereon pass through the cable conduit 5 to reach the installation position, and the cable 42 is removed from the pipe threading tool for the probe assembly 4 and connected to the probe 41.

[0048] After testing, the above-mentioned pipe threading method can greatly improve the success rate of pipe threading in one go, without the need for multiple reworks that affect work efficiency, and can significantly improve the installation speed of the ultrasonic phased array probe, saving about 80% of the time compared to manual pipe threading. In addition, the cable 42 can be effectively avoided from being damaged during the pipe threading process, thereby ensuring the quality of the collected data.

[0049] According to another aspect of the present application, an ultrasonic inspection device is provided for performing ultrasonic inspection on the inner wall of the CRDM tube 10 .

[0050] Figure 4 A specific implementation scenario of the pipe threading tool is shown, and the following is explained by taking this implementation scenario as an example. In this embodiment, the probe assembly 4 is a phased array probe assembly and an array eddy current probe assembly, which is used to implement ultrasonic inspection of the inner wall of the CRDM tube 10. The pipe threading tool is used to assist the cable 42 in the probe assembly 4 to pass through the cable conduit 5 and connect with the probe 41, so as to realize the rapid pipe threading of the cable 42 and improve the installation efficiency of the probe assembly 4. After the probe assembly 4 is installed, it can be fixedly connected to the cable conduit 5 through the coupling 9, and the probe assembly 4 can be transported to different CRDM tubes 10 through the detection device body 8 and the inspection-related motion trajectory can be completed to realize ultrasonic inspection of the inner wall of the CRDM tube 10 and the J weld.

[0051] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A pipe threading tool for a probe assembly, characterized in that: The probe assembly includes a probe and a cable, and a cable socket is provided at the end of the cable. The pipe threading tool for the probe assembly is used to assist the cable to pass through the cable conduit and connect with the probe through the cable socket. The pipe threading tool for the probe assembly includes: A cable fixing seat, comprising a fixing groove, wherein the fixing groove can cooperate with the cable socket to install the cable on the cable fixing seat; A shell having a cavity inside, wherein the cable fixing seat and the cable mounted thereon can extend from one end of the shell into and be accommodated in the cavity, and are fixedly connected to the shell; and A traction member, disposed on the housing and used for connecting a traction line; Among them, the traction line is pre-arranged in the cable conduit. After the cable and the pipe threading tool for the probe assembly are installed, the pipe threading tool for the probe assembly passes through the cable conduit under the traction of the traction line to complete the cable pipe threading operation.

2. The pipe threading tool for the probe assembly according to claim 1, characterized in that: The cable fixing seat includes a plurality of fixing grooves so as to install a plurality of cables on the cable fixing seat.

3. The pipe threading tool for the probe assembly according to claim 2, characterized in that: The plurality of fixing grooves are evenly distributed on the cable fixing seat in a spiral shape along the axial direction of the cable fixing seat.

4. The pipe threading tool for the probe assembly according to claim 1, characterized in that: The pipe threading tool for the probe assembly also includes a housing base and a pipeline connector; The pipeline connector is arranged on the housing base and is used to connect other pipelines; The shell base is detachably connected to one end of the shell, and a through hole is provided on the shell base. In an assembled state, the cable part extends from the through hole to the outside of the shell.

5. The pipe threading tool for the probe assembly according to claim 4, characterized in that: The shell base is provided with a plurality of through holes, and positions of the plurality of through holes correspond to positions of the plurality of fixing grooves.

6. The pipe threading tool for the probe assembly according to claim 1, characterized in that: The traction member is an eye bolt, which is threadedly connected to the end of the shell.

7. The pipe threading tool for a probe assembly according to claim 1, characterized in that: The shell is made of polymer material.

8. The pipe threading tool for a probe assembly according to claim 1, characterized in that: The probe assembly is a phased array probe assembly and an array eddy current probe assembly, which are used to implement ultrasonic testing of the inner wall of the CRDM pipe.

9. A method for threading a probe assembly through a pipe, characterized in that: The pipe threading tool for the probe assembly according to any one of claims 1 to 8 is used to assist the cable of the probe assembly to pass through the cable conduit and connect with the probe, and the pipe threading method comprises the following steps: The traction wire is pre-placed in the cable conduit, and the traction wire extends from one end of the cable conduit close to the probe and extends from the other end; Install the cable socket on the fixing groove of the cable fixing seat, and complete the assembly of the pipe threading tool for the probe assembly; Connecting the traction wire to the traction member of the tube threading tool for the probe assembly; Pulling one end of the pulling wire close to the cable conduit, so that the conduit threading tool for the probe assembly and the cable installed thereon pass through the cable conduit to reach the installation position; The cable is removed from the tube threading tool for the probe assembly and connected to the probe.

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