Temperature measuring probe replacement welding simulation device
By replacing the circular connection structure of the welding simulation device with a temperature probe, 360° movement simulation of the probe is achieved, solving the problems of difficulty and time consumption in replacing temperature probes in nuclear power plants, and improving replacement efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA GENERAL NUCLEAR POWER OPERATION
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-21
AI Technical Summary
Temperature probes in nuclear power plant turbine generator sets have a high failure rate, are installed in confined spaces, and have complex replacement processes, resulting in difficult and time-consuming replacements.
A temperature probe replacement welding simulation device is provided, including a bracket, mounting parts and pipe joints. The device enables 360° movement of the connection part through a circular ring connection structure, simulating the probe replacement steps at different positions, allowing personnel to practice in advance.
This reduces the time personnel spend working inside the generator, improves work efficiency, reduces safety and quality risks, lowers the difficulty and time of replacement, and enhances replacement proficiency.
Smart Images
Figure CN224151833U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of temperature probe replacement technology, and in particular relates to a welding simulation device for temperature probe replacement. Background Technology
[0002] The temperature probes used in the turbine generator sets of nuclear power plants are thin-film resistance thermometers, which have a high failure rate. There have been instances where multiple temperature probes failed in a single instance. The temperature probes are installed inside the generator set in a confined space, making replacement complex.
[0003] In the actual process of replacing the temperature probe, the temperature probe is installed on the pipe joint. The installation form of the pipe joint is diverse. According to the specific location of the temperature probe, the relevant equipment in the generator set needs to be lifted away by electrical professionals. Then, the manufacturer's technicians adjust the entry direction and working angle on site according to the actual layout of the temperature probe before carrying out the replacement. The replacement is difficult and time-consuming. Utility Model Content
[0004] The purpose of this application is to provide a temperature probe replacement welding simulation device for personnel to practice the welding operation of temperature probes in advance.
[0005] To achieve the above objectives, the technical solution adopted in this application is: a temperature probe replacement welding simulation device, including a bracket, a mounting component, and a pipe connector. The mounting component is disposed on the bracket and has a circular ring connection structure. The pipe connector includes a body and a connecting part connected to each other. The body is used for welding with the temperature probe. The connecting part is connected to the circular ring connection structure, so that the connecting part can move around the axis of the circular ring connection structure.
[0006] Optionally, the annular connection structure is an annular groove provided on the mounting part, one end of the connecting part is used to insert into the annular groove, and the other end of the connecting part is connected to the body.
[0007] Optionally, the connecting part is interference-fitted with the annular groove.
[0008] Optionally, the mounting component is provided with a weight reduction hole, and an annular groove is provided around the weight reduction hole.
[0009] Optionally, the mounting element is a ring-shaped component.
[0010] Optionally, the outer circumferential surface of the body is used for welding the temperature probe, and the connecting part is a cylinder that can rotate around its own axis within the annular groove.
[0011] Optionally, the outer peripheral surface of the body is provided with a receiving groove for accommodating at least a portion of the temperature probe.
[0012] Optionally, the main body is a column, and the connecting part is coaxially connected to the main body.
[0013] Optionally, the bracket includes a base and a support rod, one end of which is connected to the base and the other end of which is connected to the mounting component.
[0014] Optionally, the axis of the circular connecting structure is set perpendicular to the support rod.
[0015] The above-mentioned technical solutions of the temperature probe replacement welding simulation device provided in this application have at least one of the following technical effects: When using the temperature probe replacement welding simulation device, the connecting part of the pipe joint is connected to the circular connecting structure of the mounting component, and the pipe joint is installed in a preset position. Then, the temperature probe is welded to the body of the pipe joint, thereby realizing the simulation of temperature probe replacement. The connecting part can move 360° along the circular connecting structure, which can simulate probes in different positions. Therefore, for probes to be replaced in different positions, the on-site replacement steps can be simulated in advance for rehearsal, reducing the time that personnel work inside the generator, improving work efficiency, and reducing safety and quality risks.
[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 A schematic diagram of the welding simulation device for replacing the temperature probe provided in some embodiments of this application;
[0019] Figure 2 for Figure 1 The diagram shows the structure after the temperature probe is replaced with the hidden pipe joint of the welding simulation device.
[0020] Figure 3 for Figure 1 The diagram shows the structure of the pipe fitting.
[0021] The following are the labeling elements in the figure:
[0022] 100. Temperature probe replacement welding simulation device; 10. Bracket; 11. Base; 12. Support rod; 20. Mounting parts; 21. Circular ring connection structure; 211. Circular ring groove; 22. Weight reduction hole; 30. Pipe joint; 31. Body; 311. Receiving groove; 312. Center hole; 32. Connecting part. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include at least one of that feature.
[0025] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this application, it should be understood that the terms "inner", "outer", "side", "upper", "bottom", "front", "rear", etc., indicating the orientation or positional relationship are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0029] In the description of this application, it should be noted that the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.
[0030] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example in the figure. It should be understood that the reference numerals are also applicable to other identical parts or components.
[0031] The temperature probes used in the turbine generator sets of nuclear power plants are thin-film resistance thermometers, which have a high failure rate. There have been instances where multiple temperature probes failed in a single instance. The temperature probes are installed inside the generator set in a confined space, making replacement complex.
[0032] In the actual process of replacing the temperature probe, the temperature probe is installed on the pipe joint. The installation form of the pipe joint is diverse. According to the specific location of the temperature probe, electrical professionals need to lift the relevant equipment in the generator set, and then the manufacturer's technicians need to adjust the entry direction and working angle on site according to the actual layout of the temperature probe before replacing it. However, this replacement method can only be carried out on site, resulting in personnel with little practical experience in replacement and unfamiliarity with the replacement operation, which increases the difficulty and time of replacing the temperature probe.
[0033] Based on this, this application provides a temperature probe replacement welding simulation device. This device allows personnel to practice the temperature probe replacement operation in advance, improve personnel's replacement experience, increase the proficiency of replacing temperature probes on site, reduce the difficulty of replacing temperature probes, and improve replacement efficiency.
[0034] The following combination Figures 1-3 This application describes a temperature probe replacement welding simulation device according to an embodiment of the present application.
[0035] See Figure 1As shown, in some embodiments, the temperature probe replacement welding simulation device 100 includes a bracket 10, a mounting component 20, and a pipe connector 30; the mounting component 20 is disposed on the bracket 10 and has a circular ring connection structure 21; the pipe connector 30 includes a body 31 and a connecting portion 32 connected to each other, the body 31 being used for welding with the temperature probe; wherein, the connecting portion 32 is connected to the circular ring connection structure 21, so that the connecting portion 32 can move around the axis of the circular ring connection structure 21.
[0036] The bracket 10 refers to a component used to support the mounting component 20. The bracket 10 serves to support the mounting component 20, enabling it to be stably fixed, thereby facilitating the welding practice of the temperature probe. The bracket 10 can be made of various materials, such as metal or plastic.
[0037] Mounting component 20 can refer to a part used for connection with pipe fitting 30. The material of mounting component 20 can be various, such as metal, plastic, etc.
[0038] The pipe fitting 30 can refer to a component used for welding with the temperature probe; the pipe fitting 30 includes a connecting part 32 and a body 31. The body 31 can refer to the part of the pipe fitting 30 used for welding with the temperature probe, or it can be the part of the pipe fitting 30 connected to the pipeline; the connecting part 32 can refer to the part connected to the annular connecting structure 21 of the mounting component 20. For example, the temperature probe is connected to a welding plate. After the welding plate is attached to the outer peripheral surface of the body 31, the welding plate and the body 31 are welded together. The welding equipment used can be a spot welding machine, etc. After welding is completed, the welding plate can be removed from the body 31, which can be used to practice the disassembly operation of the temperature probe and facilitate subsequent welding practice.
[0039] The circular connection structure 21 is a circular structure. The circular connection structure 21 is connected to the connection part 32 of the pipe joint 30, so that the connection part 32 can move along the circular connection structure 21 and can move 360°, thereby enabling the practice of welding operations of temperature probes in different positions.
[0040] For example, the annular connection structure 21 can be an annular protrusion protruding from the surface of the mounting part 20, and the connecting part 32 is provided with a groove that engages with the annular protrusion. By moving the groove along the annular protrusion, the position of the pipe joint 30 can be adjusted, thereby meeting the welding operation requirements of temperature probes in different positions.
[0041] For example, the annular connection structure 21 may include multiple connection holes arranged in a circular array, and the connection part 32 is inserted into different connection holes to meet the welding operation requirements of temperature probes in different orientations.
[0042] The temperature probe replacement welding simulation device 100 of this application embodiment connects the connecting part 32 of the pipe connector 30 to the annular connecting structure 21 of the mounting component 20 during use, and installs the pipe connector 30 in a preset position. Then, the temperature probe is welded onto the body 31 of the pipe connector 30, thereby realizing the simulation of the temperature probe. The connecting part 32 can move 360° along the annular connecting structure 21, which can simulate probes in different positions. Therefore, for probes that are about to be replaced in different positions, the on-site replacement steps can be simulated in advance for rehearsal, reducing the time that personnel work inside the generator, improving work efficiency, and reducing safety and quality risks.
[0043] In some embodiments, during use, the body 31 of the pipe fitting 30 can be connected to the pipe to simulate the environment in which the temperature probe is located. For example, the pipe can be made of heat-shrinkable external PO-51 / 16_L=62 type heat-shrink tubing, with a purchased length of 20m, which is then cut and used in a simulation.
[0044] In some embodiments, temperature probe replacement involves multiple processes such as wire pulling, twisting, butt welding / crimping, spot welding, heat shrinking, and lead fixing. By using the temperature probe replacement welding simulation device 100, users can gradually master the entire process of replacing generator temperature probes, ultimately achieving the ability to independently replace generator temperature probes. This also facilitates the development of a summary document, "Complete Process of Temperature Probe Replacement," and allows for practical exercises simulating on-site replacement steps, achieving both capability building and advance training objectives.
[0045] Please refer to the following: Figure 2 As shown, in some embodiments, the annular connection structure 21 is an annular groove 211 provided on the mounting member 20, one end of the connecting part 32 is used to insert into the annular groove 211, and the other end of the connecting part 32 is connected to the body 31.
[0046] The annular groove 211 can refer to the groove provided on the side of the mounting part 20. The groove is annular in shape, and the connecting part 32 can be inserted into the annular groove 211. The body 31 is exposed outside the annular groove 211, which facilitates the welding of the temperature probe onto the body 31.
[0047] By adopting the technical solution of this embodiment, the annular connection structure 21 adopts the structure of annular groove 211, which is simple in structure and easy to process and manufacture.
[0048] In some embodiments, the connecting portion 32 is interference-fitted with the annular groove 211.
[0049] The connecting part 32 is interference-fitted with the annular groove 211, allowing the connecting part 32 to be fixed relative to the mounting part 20 after being inserted into the annular groove 211. This reduces the risk of the connecting part 32 wobbling and improves the stability of the temperature probe welding exercise. It should be noted that the interference fit dimensions between the connecting part 32 and the annular groove 211 must be reasonably designed. When the connecting part 32 is inserted into the preset position of the annular groove 211, the connecting part 32 can be fixed relative to the mounting part 20. Under external force, the connecting part 32 can also move along the annular groove 211, thereby achieving position adjustment to meet the exercise requirements of different orientations. The specific dimensions of the interference fit between the connecting part 32 and the annular groove 211 can be set according to actual needs and are not limited here.
[0050] In some embodiments, the mounting member 20 is provided with a weight reduction hole 22, and an annular groove 211 is arranged around the weight reduction hole 22.
[0051] In some examples, the mounting part 20 has a disc-shaped structure and a through hole in the middle of the mounting part 20, which can be a weight reduction hole 22; of course, in other examples, the weight reduction hole 22 can also adopt other structures, and the number of weight reduction holes 22 can be one or more.
[0052] By adopting the technical solution of this embodiment, the setting of the weight reduction hole 22 can reduce the material accumulation of the mounting part 20 and reduce the manufacturing cost of the mounting part 20.
[0053] In some embodiments, the mounting element 20 is a ring-shaped element.
[0054] The annular component has a circular groove on one surface along its axial direction.
[0055] By adopting the technical solution of this embodiment, the mounting component 20 adopts the structure of a ring component, which is simple in structure and easy to process and manufacture.
[0056] Please refer to the following: Figure 3 As shown, in some embodiments, the outer peripheral surface of the body 31 is used for welding the temperature probe, and the connecting part 32 is a cylinder that can rotate around its own axis within the annular groove 211.
[0057] The connecting part 32 adopts a cylindrical structure with a cylindrical outer circumferential surface. The cylindrical surface is inserted into the annular groove 211, allowing the connecting part 32 to rotate 360° around its own axis within the annular groove 211. Simultaneously, the outer circumferential surface of the cylinder is used for welding the temperature probe. The 360° rotation of the connecting part 32 around its own axis causes the welding position of the outer circumferential surface of the cylinder to rotate, thus allowing for simulation of welding requirements for temperature probes at different angles. Furthermore, the connecting part 32 can also move 360° along the annular groove 211, thereby simulating the installation positions of temperature probes at different angles and directions, and thus enabling simulation exercises of most or all installation scenarios of the temperature probes.
[0058] In some embodiments, the outer peripheral surface of the body 31 is provided with a receiving groove 311, which is used to receive at least a portion of the temperature probe.
[0059] The receiving groove 311 can accommodate the temperature probe. In addition, the receiving groove 311 can also serve as a marker position for the installation of the temperature probe. By using the receiving groove 311 as a reference, the connecting part 32 can be easily adjusted to the preset position, thus realizing the practice of welding the temperature probe at the preset position.
[0060] In some embodiments, the body 31 is a column, and the connecting part 32 is coaxially connected to the body 31.
[0061] The main body 31 adopts a cylindrical structure, which is simple in structure and easy to process and manufacture. In addition, the main body 31 is coaxially connected with the connecting part 32, and the pipe joint 30 has a regular structure and is easy to process and manufacture. Furthermore, this structure can be the same as or similar to the actual installation of the temperature probe, and can also better simulate the welding of the temperature probe.
[0062] The main body 31 can be in the shape of a cylinder, a square prism, a pentagonal prism, etc.
[0063] In some embodiments, the body 31 is provided with a central hole 312 extending along its axis for pipe insertion, and a receiving groove 311 penetrates the hole wall of the central hole 312, thereby enabling the central hole 312 and the receiving groove 311 to communicate. This helps to reduce the amount of material used in the pipe fitting 30 and reduce the manufacturing cost of the pipe fitting 30.
[0064] In some embodiments, the bracket 10 includes a base 11 and a support rod 12, one end of the support rod 12 being connected to the base 11 and the other end of the support rod 12 being connected to the mounting member 20.
[0065] The base 11 can refer to the bottom part of the support 10. The shape of the base 11 can be various, such as: round, polygonal, etc.
[0066] The support rod 12 connects the base 11 and the mounting component 20. The support rod 12 can lift the mounting component 20, thereby increasing its height and facilitating welding practice of the temperature probe. Furthermore, the structure of the base 11 and support rod 12 is simple and provides good stability for supporting the mounting component 20, which is beneficial to the stability of the temperature probe welding practice. The number of support rods 12 can be one or more, and the specific number can be set according to actual needs; no limit is imposed here.
[0067] In some embodiments, the axis of the annular connecting structure 21 is perpendicular to the support rod 12.
[0068] During the exercise, when the base 11 is placed on the work platform or the bottom surface, the circular connecting structure 21 can face the personnel, making the welding operation of the temperature probe simpler and more in line with the actual welding situation.
[0069] In some embodiments, the pipe joint 30 can be machined according to the actual dimensions on site, with a receiving groove 311 and a welding position. The pipe joint 30 can rotate 360° around its own axis. The mounting part 20 has an annular groove 211 to allow the mounting part 20 to move 360°, which can be used to practice welding operations of temperature probes at different angles and directions. In addition, the temperature probe replacement welding simulation device 100 can be equipped with a spot welding machine, temperature probes, and simulated welding materials to facilitate the practice of temperature probe welding. For example, the temperature probe replacement welding simulation device 100 is equipped with at least two resistance temperature probes and a spot welding machine, and the simulation device is used for practice.
[0070] In some embodiments, the pipe joint 30 of the temperature probe replacement welding simulation device 100 can rotate 360° and move 360° on the mounting part 20, which can simulate temperature probes at different angles and directions, and rehearse the on-site replacement steps in advance for the temperature probe to be replaced.
[0071] In some embodiments, a temperature probe is used to replace the welding simulation device 100 to simulate the on-site replacement steps in advance, improve personnel skills, master key steps such as twisting, butt welding / pressing, spot welding, and heat shrinking, effectively improve quality and avoid repetitive work.
[0072] In some embodiments, the welding simulation device 100 for replacing temperature probes enables capability building and advance drills. It is estimated that experienced operators can reduce their time spent inside the generator by approximately 2 hours compared to new operators, improving work efficiency, reducing safety risks, and minimizing the risks of foreign objects and accidental contact. Furthermore, the time required to replace a single temperature probe can be reduced from 8 hours to 6 hours. Additionally, achieving autonomous replacement can save approximately 24 hours in emergency project initiation and manufacturer personnel arrival time. Moreover, using the welding simulation device 100 for replacing temperature probes to achieve capability building and advance drills, based on an estimated single emergency replacement of one temperature probe, can save approximately 50,000 yuan in project initiation costs and approximately 24 hours in project time.
[0073] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.
[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A temperature probe replacement welding simulation apparatus, characterized by, include: support; A mounting component is provided on the bracket, and the mounting component has a circular connection structure; A pipe fitting includes a connected body and a connecting portion, the body being used for welding to a temperature probe; The connecting part is connected to the circular connecting structure, so that the connecting part can move around the axis of the circular connecting structure.
2. The temperature probe replacement welding simulation apparatus of claim 1, wherein: The annular connection structure is an annular groove provided on the mounting component. One end of the connecting part is used to insert into the annular groove, and the other end of the connecting part is connected to the main body.
3. The temperature probe replacement welding simulation apparatus of claim 2, wherein: The connecting part is interference-fitted with the annular groove.
4. The temperature probe replacement welding simulation apparatus of claim 2, wherein: The mounting component is provided with a weight-reducing hole, and the annular groove is arranged around the weight-reducing hole.
5. The temperature probe replacement welding simulation apparatus of claim 4, wherein: The mounting component is a circular ring.
6. The temperature probe replacement welding simulation apparatus of claim 2, wherein: The outer circumferential surface of the body is used for welding the temperature probe, and the connecting part is a cylinder that can rotate around its own axis within the annular groove.
7. The temperature probe replacement welding simulation apparatus of claim 6, wherein: The outer peripheral surface of the body is provided with a receiving groove, which is used to receive at least a portion of the temperature measuring probe.
8. The temperature probe replacement welding simulation apparatus of claim 6, wherein: The main body is a column, and the connecting part is coaxially connected to the main body.
9. The temperature probe replacement welding simulation apparatus according to any one of claims 1 to 8, characterized in that: The bracket includes a base and a support rod, one end of which is connected to the base and the other end of which is connected to the mounting component.
10. The temperature probe replacement welding simulation apparatus of claim 9, wherein: The axis of the circular connecting structure is perpendicular to the support rod.