Thermocouple simulator and testing method, testing device, storage medium, product thereof

Abstract

The application relates to a thermocouple analog body and a testing method and device thereof, a storage medium and a product. The thermocouple analog body comprises a female flange analog body and a pipe seat analog body; the female flange analog body is detachably connected with the pipe seat analog body, and a through channel is formed in the female flange analog body and the pipe seat analog body; a connection portion between the female flange analog body and the pipe seat analog body comprises an omega weld seam; and the omega weld seam forms a sealed structure with the female flange analog body and the pipe seat analog body after being filled with a preset material. The assembled thermocouple analog body can be disassembled for the required part during use, so that the thermocouple analog body can be reused. In addition, only part of components of the thermocouple analog body in the application adopt nuclear-grade stainless steel materials, and the rest adopt common stainless steel materials, so that the waste of nuclear-grade materials is avoided, and the manufacturing cost of the thermocouple analog body is reduced.

Description

Technical Field

[0001] This application relates to the field of nuclear power plant maintenance technology, and in particular to a thermocouple simulator and its testing method, testing device, storage medium, and product. Background Technology

[0002] During the operation of a nuclear power plant, it is necessary to monitor the reactor core temperature in real time, which requires the use of thermocouples to measure the temperature at specific locations within the reactor core. However, during long-term operation and repeated disassembly and assembly during major overhauls, the female flange of the thermocouple may be damaged, requiring timely replacement; alternatively, the Ω weld on the thermocouple may leak, necessitating timely reinforcement welding of the Ω weld.

[0003] Generally, before replacing the female flange or performing weld overlay on the Ω weld, a test must be conducted on a thermocouple simulator to ensure the stability and reliability of the replacement or weld overlay process. Only then can the actual replacement of the female flange or the weld overlay on the Ω weld be carried out in the nuclear power plant, ensuring that the thermocouple can work normally in the nuclear power plant and accurately monitor the core temperature of the nuclear reactor, thereby ensuring the safe operation of the nuclear power plant.

[0004] However, existing thermocouple simulators have low reusability, resulting in high manufacturing costs. Summary of the Invention

[0005] Therefore, it is necessary to provide a thermocouple simulator and its testing method, testing device, storage medium, and product that can reduce manufacturing costs in response to the above-mentioned technical problems.

[0006] In a first aspect, this application provides a thermocouple simulator. The thermocouple simulator includes a female flange simulator and a pipe socket simulator;

[0007] The female flange simulator and the pipe seat simulator are detachably connected, and a through channel is formed between the interior of the female flange simulator and the pipe seat simulator.

[0008] The connection between the female flange simulation body and the pipe seat simulation body includes an Ω weld; and the Ω weld body, after being filled with a preset material, forms a sealing structure between the female flange simulation body and the pipe seat simulation body.

[0009] In one embodiment, the female flange simulation body includes a first sub-simulation body, a second sub-simulation body, and a third sub-simulation body;

[0010] The first end of the first sub-simulation is detachably connected to the first end of the second sub-simulation; the second end of the second sub-simulation is detachably connected to the first end of the third sub-simulation.

[0011] In one embodiment, the first sub-simulation, the second sub-simulation, and the third sub-simulation are all hollow cylindrical structures, and the first end of the first sub-simulation is a flange structure, the first end of the second sub-simulation is a groove structure, and the first sub-simulation is detachably connected to the groove structure of the second sub-simulation through the flange structure.

[0012] The thermocouple simulator further includes a first connector; a first through hole is provided on the flange structure, and a second connecting hole corresponding to the position of the first through hole is provided on the groove structure. The first connector passes through the first through hole and the second connecting hole, and connects the first sub-simulation and the second sub-simulation.

[0013] In one embodiment, the second sub-simulation body is provided with an internal thread, and the pipe seat simulation body is provided with an external thread adapted to the internal thread; the second sub-simulation body is connected to the external thread of the pipe seat simulation body through the internal thread.

[0014] The thermocouple simulator further includes a second connector; a third connection hole is provided on the second end of the second sub-simulator, and a fourth through hole corresponding to the position of the third connection hole is provided on the first end of the third sub-simulator; the second connector passes through the third connection hole and the fourth through hole, and connects the second sub-simulator and the third sub-simulator.

[0015] In one embodiment, the first sub-simulation and the third sub-simulation are made of nuclear-grade stainless steel, while the second sub-simulation is made of ordinary stainless steel.

[0016] In one embodiment, the tube seat simulation body includes a fourth sub-simulation body and a fifth sub-simulation body, both of which are hollow cylindrical structures;

[0017] The first end of the fourth sub-simulation body is provided with an external thread, and the second sub-simulation body is connected to the external thread of the fourth sub-simulation body through the internal thread; the second end of the fourth sub-simulation body is provided with a fifth connecting hole;

[0018] The first end of the fifth sub-simulation body is a flange structure, and a sixth through hole corresponding to the position of the fifth connecting hole is opened on the flange structure. The flange structure includes a first lip. The third sub-simulation body includes a second lip. The first lip and the second lip are connected by the Ω weld.

[0019] In one embodiment, the tube seat simulation body further includes a sixth sub-simulation body, which is a hollow cylindrical structure;

[0020] The first end of the sixth sub-simulation is provided with a first circular flange, and a seventh through hole is provided on the first circular flange; the thermocouple simulation body also includes a third connector; the third connector passes through the fifth connecting hole, the sixth through hole and the seventh through hole, and connects the fourth sub-simulation body, the fifth sub-simulation body and the sixth sub-simulation body;

[0021] The other end of the sixth sub-simulation body is provided with a second circular flange, and the second circular flange is provided with an eighth through hole. The second circular flange is connected to the fixed base by a fourth connector passing through the eighth through hole.

[0022] In one embodiment, the fifth sub-simulation is made of nuclear-grade stainless steel, while the fourth and sixth sub-simulations are made of ordinary stainless steel.

[0023] Secondly, this application provides a method for testing a thermocouple simulator. The method is applied to a thermocouple simulator in any of the embodiments of the first aspect described above, and the method includes:

[0024] If the sealing surface of the thermocouple simulator is to be ground, the female flange simulator and the pipe seat simulator are assembled by threads to obtain the thermocouple simulator; the sealing surface of the thermocouple simulator is ground using a grinding device.

[0025] If a welding test is to be performed on the Y-ring of the female flange simulator, the Y-ring is welded to the female flange simulator using a preset spot welding technique, and the welding test is performed on the Y-ring of the thermocouple simulator.

[0026] If a welding test is performed on the Ω weld structure, the female flange simulation body with the welded Y-ring is assembled with the pipe seat simulation body to obtain a thermocouple simulation body; the Ω weld structure is formed by performing a welding test on the Ω weld using a preset overlay welding technique.

[0027] If the Ω weld structure is to be cut and reshaped, a cutting tool is used to cut the Ω weld structure, and a reshaping test is performed on the Ω welds after cutting and separation.

[0028] Thirdly, this application also provides a thermocouple simulator testing device. The device includes:

[0029] The sealing surface grinding test module is used to assemble the female flange simulator and the pipe seat simulator by means of threads to obtain the thermocouple simulator if the sealing surface of the thermocouple simulator is to be ground for testing; and to use grinding equipment to grind the sealing surface of the thermocouple simulator for testing.

[0030] The Y-ring welding test module is used to weld the Y-ring to the female flange simulator using a preset spot welding technique if a welding test is to be performed on the Y-ring of the female flange simulator, and to perform a welding test on the Y-ring of the thermocouple simulator.

[0031] The Ω weld seam welding test module is used to assemble the female flange simulation body with the Y-shaped ring welded on it and the pipe seat simulation body to obtain a thermocouple simulation body if a welding test is to be performed on the Ω weld seam. The Ω weld seam structure is formed by performing a welding test on the Ω weld seam using a preset overlay welding technique.

[0032] The Ω weld cutting and shaping test module is used to cut and test the Ω weld structure using a cutting tool, and to perform shaping tests on the Ω welds after cutting and separating them.

[0033] Fourthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, performs the following steps:

[0034] If the sealing surface of the thermocouple simulator is to be ground, the female flange simulator and the pipe seat simulator are assembled by threads to obtain the thermocouple simulator; the sealing surface of the thermocouple simulator is ground using a grinding device.

[0035] If a welding test is to be performed on the Y-ring of the female flange simulator, the Y-ring is welded to the female flange simulator using a preset spot welding technique, and the welding test is performed on the Y-ring of the thermocouple simulator.

[0036] If a welding test is performed on the Ω weld structure, the female flange simulation body with the welded Y-ring is assembled with the pipe seat simulation body to obtain a thermocouple simulation body; the Ω weld structure is formed by performing a welding test on the Ω weld using a preset overlay welding technique.

[0037] If the Ω weld structure is to be cut and reshaped, a cutting tool is used to cut the Ω weld structure, and a reshaping test is performed on the Ω welds after cutting and separation.

[0038] Fifthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, performs the following steps:

[0039] If the sealing surface of the thermocouple simulator is to be ground, the female flange simulator and the pipe seat simulator are assembled by threads to obtain the thermocouple simulator; the sealing surface of the thermocouple simulator is ground using a grinding device.

[0040] If a welding test is to be performed on the Y-ring of the female flange simulator, the Y-ring is welded to the female flange simulator using a preset spot welding technique, and the welding test is performed on the Y-ring of the thermocouple simulator.

[0041] If a welding test is performed on the Ω weld structure, the female flange simulation body with the welded Y-ring is assembled with the pipe seat simulation body to obtain a thermocouple simulation body; the Ω weld structure is formed by performing a welding test on the Ω weld using a preset overlay welding technique.

[0042] If the Ω weld structure is to be cut and reshaped, a cutting tool is used to cut the Ω weld structure, and a reshaping test is performed on the Ω welds after cutting and separation.

[0043] The aforementioned thermocouple simulator and its testing methods, testing devices, storage media, and products include a thermocouple guide post and a sealing device simulator. The sealing device simulator includes a female flange simulator and a tube seat simulator. The female flange simulator and the tube seat simulator are detachably connected, and a through-channel is formed between the internal parts of the female flange simulator and the tube seat simulator. The thermocouple guide post is disposed within the through-channel. The connection between the female flange simulator and the tube seat simulator includes an Ω-weld. After being filled with a preset material, the Ω-weld forms a sealing structure with the female flange simulator and the tube seat simulator. The thermocouple simulator in this application includes a female flange simulator and a tube seat simulator. The main components of the thermocouple, such as the female flange simulator and the tube seat simulator, can be assembled to obtain an assembled thermocouple simulator. The connection between the female flange simulator and the tube seat simulator includes an Ω-weld, and after being filled with a preset material, the Ω-weld forms a sealing structure with the female flange simulator and the tube seat simulator. The aforementioned thermocouple simulator is an assembled structure, not a monolithic structure. Therefore, during the simulation test of the thermocouple simulator, if some structures develop irreparable defects and need to be disassembled and replaced, only that part of the structure needs to be replaced directly. It is not necessary to replace the entire thermocouple simulator, thus enabling the reuse of some structures of the thermocouple simulator and reducing the manufacturing cost of the thermocouple simulator. Attached Figure Description

[0044] Figure 1 A schematic diagram of the structure of a monolithic thermocouple simulator in traditional technology;

[0045] Figure 2 This is a schematic diagram of the structure of a thermocouple simulator in one embodiment;

[0046] Figure 3 This is a schematic diagram of the structure of the thermocouple simulator shell in one embodiment;

[0047] Figure 4 This is a schematic diagram of the structure of the female flange simulator in a thermocouple simulator in one embodiment;

[0048] Figure 5 This is a schematic diagram of the structure of the third sub-simulation in a thermocouple simulation in one embodiment;

[0049] Figure 6 This is a schematic diagram of the structure of the fifth sub-simulation in a thermocouple simulation in one embodiment;

[0050] Figure 7 for Figure 2 Enlarged view of region A in the middle;

[0051] Figure 8 This is a diagram illustrating the application environment of a thermocouple simulator testing method in one embodiment.

[0052] Figure 9 This is a flowchart illustrating a thermocouple simulator testing method in one embodiment;

[0053] Figure 10 This is a schematic diagram of the installation of the Y-ring in a thermocouple simulator testing method in one embodiment;

[0054] Figure 11 This is a structural block diagram of a thermocouple simulator testing device in one embodiment. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0056] like Figure 1 The diagram shows a schematic of a conventional integral thermocouple simulator. A conventional integral thermocouple simulator includes a thermocouple sealing structure 102, a female flange 104, a thermocouple column 106, a pipe seat 108, and an Ω weld 110. Integral thermocouple simulators require that the materials and dimensions of the simulator be identical to the actual equipment. However, if the materials and dimensions of the entire thermocouple simulator are identical to the actual equipment, the required nuclear-grade materials are significantly increased, leading to a substantial increase in the manufacturing cycle and cost. Furthermore, during welding procedure qualification, the Ω weld of the thermocouple simulator needs to be cut open for mechanical property testing. If an integral thermocouple simulator is used, the non-test portion of the cut female flange simulator has no other use and cannot be reused, resulting in a waste of nuclear-grade materials. Therefore, the thermocouple simulators used in conventional technologies suffer from high manufacturing costs.

[0057] Based on this, this application provides a thermocouple simulator that can reduce manufacturing costs. In one embodiment, such as Figure 2 As shown, a thermocouple simulator 200 is provided; as Figure 3 The diagram shown is a structural schematic of the thermocouple simulator housing in one embodiment. The thermocouple simulator 200 includes a female flange simulator 242 and a pipe socket simulator 244;

[0058] The female flange simulator 242 and the pipe seat simulator 244 are detachably connected, and a through channel 220 is formed inside the female flange simulator 242 and the pipe seat simulator 244.

[0059] An Ω weld 248 is provided at the connection between the female flange simulation body 242 and the pipe seat simulation body 244; and after the Ω weld 248 is filled with a preset material, a sealing structure is formed between the female flange simulation body 242 and the pipe seat simulation body 244.

[0060] The female flange simulator 242 comprises a first sub-simulator 2422, a second sub-simulator 2424, and a third sub-simulator 2426, which are detachably connected in sequence. The first sub-simulator 2422 is positioned away from the pipe seat simulator 244, while the third sub-simulator 2426 is positioned close to the pipe seat simulator 244. Assembling the first sub-simulator 2422, the second sub-simulator 2424, and the third sub-simulator 2426 yields the female flange simulator 242 in the thermocouple simulator 200. The female flange simulator 242 can be used to simulate grinding tests of the sealing surface of the thermocouple simulator 200, welding tests of the Y-ring 246, welding tests of the Ω weld structure, and cutting and shaping tests of the Ω weld structure. The tube socket simulator 244 includes a fourth sub-simulator 2442, a fifth sub-simulator 2444, and a sixth sub-simulator 2446 that are detachably connected in sequence. The fourth sub-simulator 2442 is detachably connected to the second sub-simulator 2424. Assembling the fourth sub-simulator 2442, the fifth sub-simulator 2444, and the sixth sub-simulator 2446 yields the tube socket simulator 244 in the thermocouple simulator 200. The tube socket simulator 244 can be used to simulate grinding tests of the sealing surface of the thermocouple simulator 200, welding tests of the Ω weld structure, and cutting and shaping tests of the Ω weld structure. An Ω-weld 248 is provided at the connection between the female flange simulation body 242 and the pipe seat simulation body 244. After the Ω-weld 248 is filled with a preset material, a sealing structure is formed between the female flange simulation body 242 and the pipe seat simulation body 244. That is, after the Y-ring 246 is welded to the female flange simulation body 242 using a preset spot welding technology, a sealing structure will be formed between the female flange simulation body 242 and the pipe seat simulation body 244.

[0061] The thermocouple simulator 200 in this application includes a female flange simulator 242 and a pipe socket simulator 244. The main components, such as the female flange simulator 242 and the pipe socket simulator 244, can be assembled to obtain an assembled thermocouple simulator 200. The connection between the female flange simulator 242 and the pipe socket simulator 244 includes an Ω-weld 248, which, after being filled with a pre-defined material, forms a sealing structure with the female flange simulator 242 and the pipe socket simulator 244. The thermocouple simulator 200 is an assembled structure, not a monolithic structure. Therefore, during simulation testing of the thermocouple simulator 200, if an irreparable defect occurs in part of the structure, requiring disassembly and replacement, only that part needs to be replaced directly, without replacing the entire thermocouple simulator 200. This allows for the reuse of some structures in the thermocouple simulator 200, reducing its manufacturing cost.

[0062] In one embodiment, the female flange simulation body 242 includes a first sub-simulation body 2422, a second sub-simulation body 2424, and a third sub-simulation body 2426;

[0063] The first end of the first sub-simulation 2422 is detachably connected to the first end of the second sub-simulation 2424; the second end of the second sub-simulation 2424 is detachably connected to the first end of the third sub-simulation 2426.

[0064] like Figure 4 The image shown is a schematic diagram of the structure of the female flange simulator 242 in a thermocouple simulator 200 in one embodiment; as shown... Figure 5 The diagram shows a schematic representation of the third sub-simulation 2426 in a thermocouple simulator 200 in one embodiment. The female flange simulator 242 includes a first sub-simulation 2422, a second sub-simulation 2424, and a third sub-simulation 2426. The first end of the first sub-simulation 2422 is detachably connected to the first end of the second sub-simulation 2424; the second end of the second sub-simulation 2424 is detachably connected to the first end of the third sub-simulation 2426. Through the first sub-simulation 2422, the second sub-simulation 2424, and the third sub-simulation 2426 of the female flange simulator 242, the assembly of the female flange portion of the thermocouple can be achieved, simulating grinding tests of the sealing surface of the thermocouple simulator 200, welding tests of the Y-ring 246, welding tests of the Ω-weld structure, and cutting and shaping tests of the Ω-weld structure.

[0065] In this embodiment, the assembly of the female flange simulator 242 in the thermocouple simulator 200 is achieved through the first sub-simulation 2422, the second sub-simulation 2424, and the third sub-simulation 2426 of the female flange simulator 242, preparing for the subsequent assembly of the thermocouple simulator 200. The assembled thermocouple simulator 200 allows for disassembly of necessary parts during use, enabling reuse and reducing manufacturing costs.

[0066] In one embodiment, the first sub-simulation 2422, the second sub-simulation 2424 and the third sub-simulation 2426 are all hollow cylindrical structures, and the first end of the first sub-simulation 2422 is a flange structure, the first end of the second sub-simulation 2424 is a groove structure, and the first sub-simulation 2422 is detachably connected to the groove structure of the second sub-simulation 2424 through the flange structure.

[0067] The thermocouple simulator 200 also includes a first connector; a first through hole is provided on the flange structure, and a second connecting hole corresponding to the position of the first through hole is provided on the groove structure. The first connector passes through the first through hole and the second connecting hole, and connects the first sub-simulator 2422 and the second sub-simulator 2424.

[0068] Specifically, in combination Figure 4 As shown, the first sub-simulation 2422, the second sub-simulation 2424, and the third sub-simulation 2426 are all hollow cylindrical structures. The first end 2422a of the first sub-simulation 2422 is a flange structure with a first through hole. This first through hole includes eight bolt through holes and two locating pin holes evenly distributed on the flange structure. Of course, in this application, the first through hole can also include other forms of through holes, which are not limited here. Furthermore, this application does not limit the number of bolt through holes and locating pin holes. The first end 2424a of the second sub-simulation 2424 is a groove structure with a second connecting hole corresponding to the position of the first through hole. This second connecting hole includes eight bolt through holes and two locating pin holes evenly distributed on the groove structure, thus allowing the flange structure of the first sub-simulation 2422 to match the groove structure of the second sub-simulation 2424. The thermocouple simulator 200 also includes a first connector 262, which includes a bolt connector that mates with a bolt through hole and a locating pin connector that mates with a locating pin hole. The first connector 262 passes through the first through hole and the second connecting hole and connects the first sub-simulator 2422 and the second sub-simulator 2424.

[0069] In this embodiment, the first sub-simulation 2422 and the second sub-simulation 2424 of the female flange simulation 242 are connected through the cooperation of the first through hole, the second connecting hole, and the first connecting member 262. This allows for the assembly of the female flange simulation 242 in the thermocouple simulation 200, preparing for the subsequent assembly of the thermocouple simulation 200. The assembled thermocouple simulation 200 allows for the disassembly of necessary parts during use, enabling reuse and reducing manufacturing costs.

[0070] In one embodiment, the second sub-simulation body 2424 is provided with an internal thread, and the pipe seat simulation body 244 is provided with an external thread adapted to the internal thread; the second sub-simulation body 2424 is connected to the external thread of the pipe seat simulation body 244 through the internal thread.

[0071] The thermocouple simulator 200 also includes a second connector; a third connection hole is provided on the second end of the second sub-simulator 2424, and a fourth through hole corresponding to the position of the third connection hole is provided on the first end of the third sub-simulator 2426. The second connector passes through the third connection hole and the fourth through hole and connects the second sub-simulator 2424 and the third sub-simulator 2426.

[0072] Specifically, in combination Figure 4 As shown, the second sub-simulation 2424 has an internal thread, and the pipe seat simulation 244 has an external thread adapted to the internal thread. The second sub-simulation 2424 is connected to the external thread of the pipe seat simulation 244 through the internal thread. A third connecting hole is provided on the second end 2424b of the second sub-simulation 2424. The third connecting hole includes 16 evenly distributed threaded holes and 2 locating pin holes. Of course, in this application, the third connecting hole may also include other forms of through holes, which is not limited in this application. Furthermore, this application does not limit the number of bolt through holes and locating pin holes. A fourth through hole is provided on the first end 2426a of the third sub-simulation 2426, corresponding to the position of the third connecting hole. The fourth through hole includes 16 evenly distributed threaded holes and 2 locating pin holes. Of course, in this application, the fourth through hole may also include other forms of through holes, which is not limited in this application. Furthermore, this application does not limit the number of bolt through holes and locating pin holes. The thermocouple simulator 200 also includes a second connector 264, which includes a threaded connector that mates with a threaded hole and a locating pin connector that mates with a locating pin hole. The second connector 264 passes through a third connecting hole and a fourth through hole and connects the second sub-simulator 2424 and the third sub-simulator 2426.

[0073] In this embodiment, the second sub-simulation 2424 and the third sub-simulation 2426 of the female flange simulation 242 are connected through the cooperation of the third connecting hole, the fourth through hole, and the second connecting member 264. This allows for the assembly of the female flange simulation 242 in the thermocouple simulation 200, preparing it for subsequent assembly of the thermocouple simulation 200. The assembled thermocouple simulation 200 allows for disassembly of necessary parts during use, enabling reuse and reducing manufacturing costs.

[0074] In one embodiment, the first sub-simulation 2422 and the third sub-simulation 2426 are made of nuclear-grade stainless steel, while the second sub-simulation 2424 is made of ordinary stainless steel.

[0075] Specifically, the first sub-simulation 2422 and the third sub-simulation 2426 are made of RCC-M 1 nuclear-grade stainless steel, while the second sub-simulation 2424 is made of ordinary stainless steel. RCC-M is a complete set of French regulations governing the design and construction of all mechanical equipment in pressurized water reactors. In actual operation, the thermocouple cathode flange is made of nitrogen-controlled Z2CN19-10, an RCC-M 1 nuclear-grade component.

[0076] In this embodiment, the first sub-simulation 2422 and the third sub-simulation 2426 are made of nuclear-grade stainless steel, while the second sub-simulation 2424 is made of ordinary stainless steel. The thermocouple simulator 200 in this application uses only some components made of nuclear-grade materials, avoiding waste of nuclear-grade materials and thus reducing the manufacturing cost of the thermocouple simulator 200.

[0077] In one embodiment, the tube seat simulation body 244 includes a fourth sub-simulation body 2442 and a fifth sub-simulation body 2444, both of which are hollow cylindrical structures.

[0078] The first end of the fourth sub-simulation 2442 is provided with an external thread, and the second sub-simulation 2424 is connected to the external thread of the fourth sub-simulation 2442 through an internal thread; the second end of the fourth sub-simulation 2442 is provided with a fifth connection hole.

[0079] like Figure 6 The diagram shown is a structural schematic of the fifth sub-simulation 2444 in a thermocouple simulator 200 in one embodiment. The first end 2444a of the fifth sub-simulation 2444 is a flange structure, and a sixth through hole corresponding to the position of the fifth connecting hole is formed on the flange structure. Figure 7 As shown, Figure 2The enlarged view of region A is an enlarged view of the Ω weld 248 region in the thermocouple simulator 200 in one embodiment. The flange structure includes a first lip 2482; the third sub-simulation 2426 includes a second lip 2484; the first lip 2482 and the second lip 2484 are connected by the Ω weld 248.

[0080] Specifically, the first end of the fourth sub-simulation 2442 is provided with an external thread, and the second sub-simulation 2424 is connected to the fourth sub-simulation 2442 through an internal thread. The second end of the fourth sub-simulation 2442 is provided with a fifth connecting hole, which includes 6 threaded holes and 2 locating pin holes. Of course, in this application, the fifth connecting hole may also include other forms of through holes, which is not limited in this application, and the number of bolt through holes and locating pin holes is not limited in this application. The first end of the fifth sub-simulation 2444 is a flange structure, and a sixth through hole corresponding to the position of the fifth connecting hole is provided on the flange structure. The sixth through hole includes 6 threaded holes and 2 locating pin holes. Of course, in this application, the sixth through hole may also include other forms of through holes, which is not limited in this application, and the number of bolt through holes and locating pin holes is not limited in this application. The flange structure includes a first lip 2482, and the third sub-simulation 2426 includes a second lip 2484. The first lip 2482 and the second lip 2484 are connected by an Ω weld 248.

[0081] In this embodiment, the fourth sub-simulation 2442 and the fifth sub-simulation 2444 in the pipe seat simulation 244 are described to illustrate that the female flange simulation 242 and the pipe seat simulation 244 can be connected by a trapezoidal thread, thereby assembling the thermocouple simulation 200. The assembled thermocouple simulation 200 allows for disassembly of necessary parts during use, enabling reuse and reducing manufacturing costs.

[0082] In one embodiment, the tube socket simulation body 244 further includes a sixth sub-simulation body 2446, which is a hollow cylindrical structure;

[0083] The first end of the sixth sub-simulation body 2446 is provided with a first circular flange 2446a, and a seventh through hole is provided on the first circular flange 2446a; the thermocouple simulation body 200 also includes a third connector 266; the third connector 266 passes through the fifth connecting hole, the sixth through hole and the seventh through hole, and connects the fourth sub-simulation body 2442, the fifth sub-simulation body 2444 and the sixth sub-simulation body 2446;

[0084] The second end of the sixth sub-simulation body 2446 is provided with a second circular flange 2446b, and an eighth through hole is provided on the second circular flange 2446b. The second circular flange 2446b is connected to the fixed seat by a fourth connector passing through the eighth through hole.

[0085] Specifically, in combination Figure 1 As shown, the pipe seat simulation body 244 also includes a sixth sub-simulation body 2446, which is a hollow cylindrical structure. A first circular flange 2446a is provided at the first end of the sixth sub-simulation body 2446. A seventh through hole is provided on the first circular flange 2446a, which includes six threaded holes and two locating pin holes. Of course, in this application, the seventh through hole may also include other forms of through holes, which are not limited in this application. Furthermore, this application does not limit the number of bolt through holes and locating pin holes. The thermocouple simulation body 200 also includes a third connector 266, which includes a threaded connector that mates with the threaded holes and a locating pin connector that mates with the locating pin holes. The third connector 266 passes through the fifth connecting hole, the sixth through hole, and the seventh through hole, and connects the fourth sub-simulation body 2442, the fifth sub-simulation body 2444, and the sixth sub-simulation body 2446. The other end of the sixth sub-simulation body 2446 is provided with a second circular flange 2446b, and the second circular flange 2446b is provided with an eighth through hole, which includes four openings. Of course, in this application, the eighth through hole may also include other types of through holes, which is not limited in this application. Furthermore, this application does not limit the number of bolt through holes and locating pin holes. The thermocouple simulation body 200 also includes a fourth connector, which includes a threaded connector that mates with a threaded hole. The second circular flange 2446b is connected to the fixed seat through the fourth connector passing through the eighth through hole.

[0086] In this embodiment, the fourth sub-simulation 2442, the fifth sub-simulation 2444, and the sixth sub-simulation 2446 of the tube socket simulation 244 are connected through the cooperation of the fifth connecting hole, the sixth through hole, the seventh through hole, and the third connecting member. This allows for the assembly of the tube socket simulation 244 in the thermocouple simulation 200, preparing it for subsequent assembly of the thermocouple simulation 200. The assembled thermocouple simulation 200 allows for disassembly of necessary parts during use, enabling reuse and reducing manufacturing costs.

[0087] In one embodiment, the fifth sub-simulation 2444 is made of nuclear-grade stainless steel, while the fourth sub-simulation 2442 and the sixth sub-simulation 2446 are made of ordinary stainless steel.

[0088] Specifically, the fifth sub-simulation 2444 uses nuclear-grade stainless steel, while the fourth sub-simulation 2442 and the sixth sub-simulation 2446 use ordinary stainless steel. RCC-M is a complete set of French regulations governing the design and construction of all mechanical equipment in pressurized water reactors. In actual operation, the thermocouple cathode flange is made of nitrogen-controlled material Z2CN19-10, which is an RCC-M 1 nuclear-grade component.

[0089] In this embodiment, the fifth sub-simulation 2444 is made of nuclear-grade stainless steel, while the fourth sub-simulation 2442 and the sixth sub-simulation 2446 are made of ordinary stainless steel. The thermocouple simulator 200 in this application uses only some components made of nuclear-grade materials, avoiding waste of nuclear-grade materials and thus reducing the manufacturing cost of the thermocouple simulator 200.

[0090] The thermocouple simulator testing method provided in this application embodiment can be applied to, for example... Figure 8 The application environment is shown. Terminal 802 communicates with server 804 via a network. The data storage system can store the data that server 804 needs to process. The data storage system can be integrated onto server 804, or it can be located in the cloud or on other network servers. If a grinding test is to be performed on the sealing surface of the thermocouple simulator 200, the female flange simulator 242 and the pipe seat simulator 244 are assembled by threads to obtain the thermocouple simulator 200; the sealing surface of the thermocouple simulator 200 is ground using a grinding device; if a welding test is to be performed on the Y-ring 246 of the female flange simulator 242, the Y-ring 246 is welded to the female flange simulator 242 using a preset spot welding technique, and the Y-ring 246 of the thermocouple simulator 200 is then tested; if a welding test is to be performed on the Ω weld structure, the female flange simulator 242 with the Y-ring 246 welded on it is assembled with the pipe seat simulator 244 to obtain the thermocouple simulator 200; the Ω weld structure is formed by welding using a preset overlay welding technique on the Ω weld 248; if a cutting and shaping test is to be performed on the Ω weld structure, the Ω weld structure is cut using a cutting tool, and the Ω weld 248 after cutting and separation is then tested for shaping. Among them, terminal 802 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, smart in-vehicle devices, etc. Portable wearable devices can include smartwatches, smart bracelets, head-mounted devices, etc. Server 804 can be implemented using a standalone server or a server cluster consisting of multiple servers.

[0091] In one embodiment, such as Figure 9 As shown, a method for testing a thermocouple simulator is provided, which can be applied to... Figure 7Taking terminal 802 as an example, the explanation includes the following steps:

[0092] Step 920: If the sealing surface of the thermocouple simulator 200 is to be ground for testing, the female flange simulator 242 and the pipe seat simulator 244 are assembled by thread to obtain the thermocouple simulator 200; the sealing surface of the thermocouple simulator 200 is ground for testing using a grinding device.

[0093] Specifically, the sealing surface of the thermocouple simulator 200 is the second end of the first sub-simulator 2422, that is, the end opposite to the first end of the first sub-simulator 2422. During long-term use, the sealing surface of the thermocouple often suffers some damage. When the damage to the thermocouple sealing surface is minor, it is usually repaired by grinding. When performing a grinding test on the sealing surface of the thermocouple simulator 200, the terminal instruction is to assemble the female flange simulator 242 and the pipe seat simulator 244 using threads to obtain the thermocouple simulator 200. Then, a grinding device is used to perform a grinding test on the sealing surface of the thermocouple simulator 200.

[0094] Step 940: If a welding test is to be performed on the Y-ring 246 of the female flange simulator 242, the Y-ring 246 is welded to the female flange simulator 242 using a preset spot welding technique, and a welding test is performed on the Y-ring 246 of the thermocouple simulator 200.

[0095] Specifically, such as Figure 10 The diagram shows the installation of the Y-ring 246 in a thermocouple simulator testing method according to one embodiment. The Y-ring 246 is used to obtain a preset gap with the first and second lips before welding the Ω weld 248. When welding the Y-ring 246 of the female flange simulator 242 is tested, the terminal instructs to use a preset spot welding technique to weld the Y-ring 246 to the lower part of the third sub-simulation 2426 in the female flange simulator 242, and controls the Y-ring 246 to meet the preset gap requirements with the first and second lips.

[0096] Step 960: If a welding test is to be performed on the Ω weld structure, the female flange simulation body 242 with the Y-ring 246 welded on it is assembled with the pipe seat simulation body 244 to obtain the thermocouple simulation body 200; the Ω weld structure is formed by performing a welding test on the Ω weld 248 using a preset overlay welding technique.

[0097] Specifically, after completing the welding test of Y-ring 246, welding tests are performed on the Ω weld structure. The terminal instruction is to assemble the female flange simulation body 242 with Y-ring 246 welded on it and the pipe seat simulation body 244 to obtain the thermocouple simulation body 200. Then, the preset overlay welding technology is used to perform welding tests on the Ω weld 248 to form the Ω weld structure, so as to ensure that the formed Ω weld structure meets the preset process requirements.

[0098] Step 980: If the Ω weld structure is to be cut and reshaped, a cutting tool is used to cut and test the Ω weld structure, and reshaping tests are performed on the Ω welds 248 after cutting and separation.

[0099] Specifically, when Ω weld 248 is damaged, an Ω weld 248 cutting test is required. The Ω weld 248 cutting test is performed by installing a special Ω weld 248 cutting tool on the welded Ω weld structure and using a preset cutting technique to cut and separate the Ω weld 248. The test is conducted to see if the second lip of the third sub-simulation 2426 and the first lip of the fifth sub-simulation 2444 can be successfully separated.

[0100] After the cutting test of the damaged Ω weld 248 is completed, the first lip 2482 and the second lip 2484 of the Ω weld 248 in the separated thermocouple simulator 200 can be reshaped. Specifically, the female flange simulator 242 is unscrewed and separated by a trapezoidal thread, and the first lip 2482 in the fifth sub-simulator 2444 and the second lip 2484 in the third sub-simulator 2426 are reshaped using a preset reshaping technique to facilitate the subsequent re-welding of the Ω weld 248.

[0101] After completing the shaping test of the damaged Ω weld 248, the shaped Ω weld 248 can be re-welded. First, replace the new female flange simulator 242 or use the shaped third sub-simulator 2426. Using a preset spot welding technique, weld the Y-ring 246 to the second lip of the third sub-simulator 2426 of the female flange simulator 242, and perform a welding test on the Y-ring 246 of the thermocouple simulator 200. Then, assemble the female flange simulator 242 with the welded Y-ring 246 to the pipe seat simulator 244 to obtain the thermocouple simulator 200. Use a preset overlay welding technique to perform a welding test on the Ω weld 248 to form the Ω weld structure.

[0102] In the above-described thermocouple simulator testing method, the thermocouple simulator 200 of this application is disassembled and reassembled to perform sealing surface grinding tests, Y-ring 246 welding tests, Ω weld 248 welding tests, and Ω weld 248 cutting and shaping tests, thereby verifying whether the performance of the sealing surface and Ω weld 248 of the thermocouple simulator 200 meets the preset conditions. During the testing process using the assembled thermocouple simulator 200, necessary parts can be disassembled, allowing the thermocouple simulator 200 to be reused and reducing its manufacturing cost.

[0103] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0104] Based on the same inventive concept, this application also provides a thermocouple simulator testing device for implementing the thermocouple simulator testing method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more thermocouple simulator testing device embodiments provided below can be found in the limitations of the thermocouple simulator testing method described above, and will not be repeated here.

[0105] In one embodiment, such as Figure 11 As shown, a thermocouple simulator testing device 1100 is provided, including: a sealing surface grinding testing module 1120, a Y-ring welding testing module 1140, an Ω weld welding testing module 1160, and an Ω weld 248 cutting and shaping testing module, wherein:

[0106] The sealing surface grinding test module 1120 is used to assemble the female flange 242 and the pipe seat 244 by thread to obtain the thermocouple 200 if the sealing surface of the thermocouple simulator 200 is to be ground for testing; and to use grinding equipment to grind the sealing surface of the thermocouple simulator 200 for testing.

[0107] Y-ring welding test module 1140 is used to weld the Y-ring 246 to the female flange simulator 242 using a preset spot welding technique if welding test is to be performed on the Y-ring 246 of the female flange simulator 242, and to perform welding test on the Y-ring 246 of the thermocouple simulator 200.

[0108] The Ω weld seam welding test module 1160 is used to assemble the female flange simulation body 242 with the Y-ring 246 welded on it and the pipe seat simulation body 244 to obtain the thermocouple simulation body 200 if welding test is to be performed on the Ω weld seam 248. The Ω weld seam structure is formed by welding test on the Ω weld seam 248 using a preset overlay welding technology.

[0109] The Ω weld 248 cutting and shaping test module 1180 is used to cut and test the Ω weld structure using a cutting tool, and to perform shaping tests on the Ω weld 248 after cutting and separating.

[0110] Each module in the aforementioned thermocouple simulator testing device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0111] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0112] If the sealing surface of the thermocouple simulator 200 is to be ground for testing, the female flange simulator 242 and the pipe seat simulator 244 are assembled by threads to obtain the thermocouple simulator 200; the sealing surface of the thermocouple simulator 200 is ground for testing using grinding equipment.

[0113] If a welding test is to be performed on the Y-ring 246 of the female flange simulator 242, the Y-ring 246 is welded to the female flange simulator 242 using a preset spot welding technique, and a welding test is also performed on the Y-ring 246 of the thermocouple simulator 200.

[0114] If a welding test is to be performed on the Ω weld structure, the female flange simulation body 242 with the Y-ring 246 welded on it is assembled with the pipe seat simulation body 244 to obtain the thermocouple simulation body 200; the Ω weld structure is formed by welding test on the Ω weld 248 using the preset overlay welding technology.

[0115] If the Ω weld structure is to be cut and reshaped for testing, a cutting tool is used to cut the Ω weld structure and a reshaping test is performed on the Ω weld 248 after cutting and separation.

[0116] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0117] If the sealing surface of the thermocouple simulator 200 is to be ground for testing, the female flange simulator 242 and the pipe seat simulator 244 are assembled by threads to obtain the thermocouple simulator 200; the sealing surface of the thermocouple simulator 200 is ground for testing using grinding equipment.

[0118] If a welding test is to be performed on the Y-ring 246 of the female flange simulator 242, the Y-ring 246 is welded to the female flange simulator 242 using a preset spot welding technique, and a welding test is also performed on the Y-ring 246 of the thermocouple simulator 200.

[0119] If a welding test is to be performed on the Ω weld structure, the female flange simulation body 242 with the Y-ring 246 welded on it is assembled with the pipe seat simulation body 244 to obtain the thermocouple simulation body 200; the Ω weld structure is formed by welding test on the Ω weld 248 using the preset overlay welding technology.

[0120] If the Ω weld structure is to be cut and reshaped for testing, a cutting tool is used to cut the Ω weld structure and a reshaping test is performed on the Ω weld 248 after cutting and separation.

[0121] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0122] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0123] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0124] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A thermocouple simulator body, characterized by, The thermocouple analog body comprises a female flange analog body and a pipe seat analog body; The female flange analog body and the pipe seat analog body are detachably connected, and a through channel is formed inside the female flange analog body and the pipe seat analog body; The connection between the female flange analog body and the pipe seat analog body comprises an omega weld seam, and the omega weld seam is filled with a preset material to form a sealed structure between the female flange analog body and the pipe seat analog body; The female flange analog body comprises a first sub-analog body, a second sub-analog body and a third sub-analog body; The first end of the first sub-analog body is detachably connected with the first end of the second sub-analog body, and the second end of the second sub-analog body is detachably connected with the first end of the third sub-analog body.

2. The thermocouple simulator body of claim 1, wherein, The first sub-analog body, the second sub-analog body and the third sub-analog body are all hollow cylindrical structures, the first end of the first sub-analog body is a flange structure, the first end of the second sub-analog body is a groove structure, and the first sub-analog body is detachably connected with the groove structure of the second sub-analog body through the flange structure; The thermocouple analog body further comprises a first connecting piece, a first through hole is formed in the flange structure, a second connecting hole corresponding to the first through hole is formed in the groove structure, the first connecting piece is arranged in the first through hole and the second connecting hole, and the first sub-analog body and the second sub-analog body are connected by the first connecting piece.

3. The thermocouple simulator of claim 2, wherein, The second sub-analog body is provided with internal threads, the pipe seat analog body is provided with external threads matched with the internal threads, and the second sub-analog body is connected with the pipe seat analog body through the internal threads and the external threads. The thermocouple analog body further comprises a second connecting piece, a third connecting hole is formed in the second end of the second sub-analog body, a fourth through hole corresponding to the third connecting hole is formed in the first end of the third sub-analog body, the second connecting piece is arranged in the third connecting hole and the fourth through hole, and the second sub-analog body and the third sub-analog body are connected by the second connecting piece.

4. The thermocouple simulator of claim 2, wherein, The first sub-analog body and the third sub-analog body are made of nuclear-grade stainless steel material, and the second sub-analog body is made of ordinary stainless steel material.

5. The thermocouple simulator of claim 3, wherein The pipe seat analog body comprises a fourth sub-analog body and a fifth sub-analog body, and the fourth sub-analog body and the fifth sub-analog body are both hollow cylindrical structures; The first end of the fourth sub-analog body is provided with external threads, the second sub-analog body is connected with the fourth sub-analog body through the internal threads and the external threads, and a fifth connecting hole is formed in the second end of the fourth sub-analog body; The first end of the fifth sub-analog body is a flange structure, a sixth through hole corresponding to the fifth connecting hole is formed in the flange structure, the flange structure comprises a first lip, the third sub-analog body comprises a second lip, and the first lip and the second lip are connected by the omega weld seam.

6. The thermocouple simulator of claim 5, wherein, The pipe seat analog body further comprises a sixth sub-analog body, and the sixth sub-analog body is a hollow cylindrical structure. The first end of the sixth sub-analog body is provided with a first circular flange, and a seventh through hole is formed in the first circular flange; the thermocouple analog body further comprises a third connecting piece; the third connecting piece is arranged in the fifth connecting hole, the sixth through hole and the seventh through hole, and the fourth sub-analog body, the fifth sub-analog body and the sixth sub-analog body are connected; The other end of the sixth sub-analog body is provided with a second circular flange, and an eighth through hole is formed in the second circular flange; the fourth connecting piece is arranged in the eighth through hole to connect the second circular flange and the fixed seat.

7. The thermocouple simulator of claim 6, wherein the thermocouple simulator is configured to simulate a thermocouple having a positive temperature coefficient. The material used by the fifth sub-analog body is a nuclear-grade stainless steel material, and the materials used by the fourth sub-analog body and the sixth sub-analog body are ordinary stainless steel materials.

8. A thermocouple simulator body testing method, characterized by, The method is applied to the thermocouple analog body in any one of claims 1-7, and the method comprises: If the sealing surface of the thermocouple analog body is subjected to grinding test, the female flange analog body and the tube seat analog body are assembled through threads to obtain the thermocouple analog body; and a grinding device is used to perform grinding test on the sealing surface of the thermocouple analog body; If the Y-shaped ring of the female flange analog body is subjected to welding test, a preset spot welding technology is used to weld the Y-shaped ring to the female flange analog body, and the Y-shaped ring of the thermocouple analog body is subjected to welding test; If the Ω weld structure is subjected to welding test, the female flange analog body with the welded Y-shaped ring and the tube seat analog body are assembled to obtain the thermocouple analog body; and a preset overlay welding technology is used to perform welding test on the Ω weld to form the Ω weld structure; If the Ω weld structure is subjected to cutting and shaping test, a cutting tool is used to perform cutting test on the Ω weld structure, and the Ω weld separated by cutting is subjected to shaping test.

9. A thermocouple simulator test apparatus characterized by comprising: The device is applied to the thermocouple analog body in any one of claims 1-7, and the device comprises: A sealing surface grinding test module is configured to, if the sealing surface of the thermocouple analog body is subjected to grinding test, assemble the female flange analog body and the tube seat analog body through threads to obtain the thermocouple analog body, and use a grinding device to perform grinding test on the sealing surface of the thermocouple analog body; A Y-shaped ring welding test module is configured to, if the Y-shaped ring of the female flange analog body is subjected to welding test, use a preset spot welding technology to weld the Y-shaped ring to the female flange analog body, and perform welding test on the Y-shaped ring of the thermocouple analog body; An Ω weld welding test module is configured to, if the Ω weld structure is subjected to welding test, assemble the female flange analog body with the welded Y-shaped ring and the tube seat analog body to obtain the thermocouple analog body, and use a preset overlay welding technology to perform welding test on the Ω weld to form the Ω weld structure; An Ω weld cutting and shaping test module is configured to, if the Ω weld structure is subjected to cutting and shaping test, use a cutting tool to perform cutting test on the Ω weld structure, and perform shaping test on the Ω weld separated by cutting.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the method in claim 8.

11. A computer program product comprising a computer program, characterized in that, The computer program, which when executed by the processor, implements the steps of the method as claimed in claim 8.

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