Irradiation corrosion coupling testing device

Abstract

The embodiment of the invention provides an irradiation corrosion coupled testing device. The irradiation corrosion coupled testing device comprises a particle acceleration assembly and a kettle body, the particle acceleration assembly comprises a particle accelerator and an energy reducer. The kettle body comprises a corrosion pool and a sample mounting position, the outlet end of the particle accelerator faces the sample mounting position, the corrosion pool is provided with a first containing cavity, corrosion liquid is contained in the first containing cavity, and the first containing cavity is located on the side, away from the particle accelerator, of the sample mounting position; and the liquid supply device is used for supplying liquid to the sample mounting position. And the energy reducer is positioned between the outlet end of the particle accelerator and the kettle body so as to adjust the energy level of the particle flow ejected by the particle accelerator. The test device provided by the embodiment of the invention is applicable to a wide range of samples to be tested, and can better meet diversified experiment requirements.

Description

Technical Field

[0001] The present application relates to the technical field of radiation corrosion coupling testing, and in particular to a radiation corrosion coupling testing device. Background Art

[0002] Conducting multi-physics field coupling performance tests under actual operating conditions has become a key technical bottleneck that determines whether the reactor can be successfully developed and commercialized. Such tests are designed to simulate the extreme and changeable operating environment inside the reactor, and comprehensively evaluate the comprehensive performance of materials by precisely controlling parameters such as temperature, radiation dose, and corrosive media, covering but not limited to creep resistance, radiation swelling resistance, and corrosion resistance.

[0003] To achieve this goal, it is crucial to develop advanced multi-physics field coupling test devices. These devices integrate multiple high-tech modules such as particle accelerators, high-temperature and high-pressure vessels, and electrochemical corrosion systems. They can simulate extreme conditions such as particle irradiation coupled with high-temperature liquid corrosion, and build a highly simulated, multi-factor synergistic test platform for the performance evaluation of in-pile materials.

[0004] In the related technology, the multi-physics field coupling test device places the material sample to be tested in the vacuum environment of the accelerator with low energy. The proton beam generated by the accelerator is transmitted through the vacuum pipe, directly irradiated to the material sample and penetrated the sample, and the other side of the sample is in contact with the corrosive liquid, so that the material sample is simultaneously subjected to the coupling effect of proton irradiation and corrosion. However, this test device is applicable to a narrow range of samples to be tested, and can only test samples of specific thickness and material, which is difficult to meet the diverse experimental needs. Summary of the invention

[0005] In view of this, the main purpose of the embodiments of the present application is to provide a radiation-corrosion coupling testing device that is applicable to a wide range of samples to be tested and can better meet diverse experimental needs.

[0006] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0007] The present application provides a radiation-corrosion coupling testing device, comprising:

[0008] A particle acceleration assembly, the particle acceleration assembly comprising a particle accelerator and an energy degrader;

[0009] A kettle body, the kettle body comprising a corrosion pool and a sample installation position, the outlet end of the particle accelerator faces the sample installation position, the corrosion pool has a first accommodating cavity, the first accommodating cavity contains a corrosion liquid, and the first accommodating cavity is located at a side of the sample installation position away from the particle accelerator, so as to supply liquid to the sample installation position;

[0010] The energy reducer is located between the outlet end of the particle accelerator and the kettle body to adjust the energy level of the particle beam emitted from the particle accelerator.

[0011] In one embodiment, along the moving direction of the particle beam, the particle acceleration assembly and the kettle body are arranged at intervals.

[0012] In one embodiment, the particle acceleration assembly further includes a collimator, and the collimator is located between the kettle body and the energy reducer.

[0013] In one embodiment, the particle acceleration assembly further includes a Faraday cup, the Faraday cup is located at the outlet end of the collimator and is communicated with the collimator, and along the moving direction of the particle beam, the Faraday cup is arranged at intervals with the kettle body.

[0014] In one embodiment, the testing device further includes a solution circulation system, the kettle body has a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are respectively communicated with the first accommodating cavity, and two ends of the solution circulation system are respectively communicated with the liquid inlet and the liquid outlet.

[0015] In one embodiment, the solution circulation system includes a circulation pipeline, a temperature and pressure increasing assembly and a temperature and pressure decreasing assembly, one end of the circulation pipeline is communicated with the liquid inlet, the other end is communicated with the liquid outlet, the temperature and pressure increasing assembly is located on the circulation pipeline and is arranged close to the liquid inlet, and the temperature and pressure decreasing assembly is located on the circulation pipeline and is arranged close to the liquid outlet.

[0016] In one embodiment, the solution circulation system further includes a water tank, the circulation pipeline includes a main liquid supply path and a circulation branch path, one end of the main liquid supply path is communicated with the liquid inlet, the other end is communicated with the liquid outlet, the water tank, the temperature and pressure increasing assembly and the temperature and pressure decreasing assembly are all located on the main liquid supply path, the temperature and pressure increasing assembly is located between the liquid supply port of the water tank and the liquid inlet, the temperature and pressure decreasing assembly is located between the return port of the water tank and the liquid outlet, the liquid inlet end of the circulation branch path is connected to the main liquid supply path between the liquid supply port and the temperature and pressure increasing assembly, and the liquid outlet end of the circulation branch path is communicated with the water tank;

[0017] The testing device further includes a dissolved oxygen measuring element, and the dissolved oxygen measuring element is located on the circulation branch path; and / or,

[0018] The testing device further includes a conductivity measuring element, and the conductivity measuring element is located on the circulation branch path.

[0019] In one embodiment, the testing device includes an electrochemical measuring element, the electrochemical measuring element includes a working electrode, and the working electrode is electrically connected to the corrosive solution.

[0020] In one embodiment, the kettle body further includes an outer shell, the outer shell has a second accommodating cavity, and the corrosion pool is located in the second accommodating cavity;

[0021] The kettle body further comprises a heat-insulating member, which is located in the second containing cavity and on the outer peripheral side of the corrosion pool; and / or,

[0022] The outer shell has a first opening, the corrosion pool has a second opening, the first opening is connected to the second opening to form a connecting channel, and the testing device also includes a temperature measuring component, at least a part of the temperature measuring component is arranged in the first accommodating cavity through the connecting channel.

[0023] In one embodiment, the testing device further includes a collecting piece, and the kettle body further includes a beam channel, wherein the beam channel is located on a side of the sample mounting position away from the first containing cavity to guide the particle flow to irradiate the sample to be tested on the sample mounting position, and the collecting piece is located on a side of the beam channel close to the first containing cavity.

[0024] The embodiment of the present application provides a radiation corrosion coupling test device, and the radiation corrosion coupling test device includes a particle acceleration component and a kettle body. The particle acceleration component includes a particle accelerator and an energy degrader. The kettle body includes a corrosion pool and a sample mounting position, the outlet end of the particle accelerator faces the sample mounting position, the corrosion pool has a first accommodating chamber, the first accommodating chamber contains a corrosive liquid, and the first accommodating chamber is located on the side of the sample mounting position away from the particle accelerator, so as to supply liquid to the sample mounting position. The energy degrader is located between the outlet end of the particle accelerator and the kettle body to adjust the energy level of the particle flow ejected by the particle accelerator. Therefore, by setting the energy degrader, the energy of the particle flow irradiated to the sample to be tested can be adjusted, so that the test device can experiment on a variety of samples to be tested with different thicknesses and materials, meet the diverse experimental needs, and expand the test range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a testing device according to an embodiment of the present application, in which the solid arrows in the figure indicate the flow direction of the corrosive liquid, and the hollow arrows in the figure indicate the movement direction of the particle flow;

[0026] Figure 2 The present invention is a flowchart of a testing method of a testing device according to an embodiment of the present invention.

[0027] Description of Reference Numerals

[0028] 10. Particle acceleration assembly; 11. Particle accelerator; 12. Energy reducer; 13. Collimator; 14. Faraday cup; 20. Kettle body; 20a. Liquid inlet; 20b. Liquid outlet; 20c. Beam channel; 21. Corrosion cell; 21a. First accommodation cavity; 22. Sample mounting position; 23. Outer housing; 24. Thermal insulation member; 30. Solution circulation system; 31. Circulation pipeline; 311. Water tank; 312. Main liquid supply path; 313. Circulation branch; 32. Temperature and pressure increasing assembly; 33. Temperature and pressure decreasing assembly; 40. Dissolved oxygen measuring member; 50. Conductivity measuring member; 60. Electrochemical measuring member; 70. Temperature measuring member; 80. Collection member. Detailed implementation manners

[0029] As used herein, the mention of "embodiment" means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0030] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may also be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0031] An embodiment of the present application provides a test device for irradiation corrosion coupling. Please refer to Figure 1 , the test device for irradiation corrosion coupling includes:

[0032] A particle acceleration assembly 10, the particle acceleration assembly 10 includes a particle accelerator 11 and an energy reducer 12;

[0033] A kettle body 20, the kettle body 20 includes a corrosion cell 21 and a sample mounting position 22. The outlet end of the particle accelerator 11 faces the sample mounting position 22. The corrosion cell 21 has a first accommodation cavity 21a, and the first accommodation cavity 21a contains a corrosion liquid. The first accommodation cavity 21a is located on the side of the sample mounting position 22 away from the particle accelerator 11 for supplying liquid to the sample mounting position 22;

[0034] The energy reducer 12 is located between the outlet end of the particle accelerator 11 and the kettle body 20 to adjust the energy level of the particle beam emitted by the particle accelerator 11.

[0035] Specifically, the particle acceleration component 10 refers to a component that generates a particle stream with a preset energy level.

[0036] The particle accelerator 11 refers to a component that can extract a high-energy particle stream.

[0037] The structural type of the particle accelerator 11 is not limited.

[0038] For example, the particle accelerator 11 is a cyclotron.

[0039] The energy range of the particle stream output by the particle accelerator 11 is not limited.

[0040] Exemplarily, the energy range of the particle stream output by the particle accelerator 11 is greater than or equal to 70 MeV and less than or equal to 100 MeV. For example, the energy of the particle stream output by the particle accelerator 11 is 70 MeV, 80 MeV, 90 MeV, or 100 MeV. Thus, keeping the energy of the particle stream within the above range enables the particle stream to penetrate various samples to be tested, thereby meeting diverse experimental requirements and expanding the test range.

[0041] The energy reducer 12 refers to a component that can adjust the energy of the particle stream. Due to the different thicknesses of the samples to be tested and experimental requirements, particle streams with different energies are needed to irradiate the samples to be tested. The energy reducer 12 is arranged at the outlet end of the particle accelerator 11, enabling the energy reducer 12 to reduce the high-energy particle stream generated by the particle accelerator 11 to an appropriate energy level according to experimental requirements, so that the particle stream after energy reduction irradiates the samples to be tested, thereby improving the applicability of the test device.

[0042] The thickness of the sample to be tested is determined according to the actual situation.

[0043] For example, the thickness of the sample to be tested is 0.63 mm, 2.71 mm, 4.09 mm, 5.49 mm, or 5.43 mm.

[0044] The control method of the energy reducer 12 is not limited.

[0045] For example, the test device for irradiation corrosion coupling further includes a pneumatic system, and the pneumatic system is connected to the energy reducer 12. Thus, the position of the energy reducer 12 can be accurately adjusted, thereby more accurately adjusting the energy of the particle stream.

[0046] The autoclave body 20 refers to a component for accommodating the sample to be tested and the corrosion liquid.

[0047] The autoclave body 20 can maintain a stable environment for continuously monitoring the state of the sample to be tested under irradiation and corrosion, and at the same time has the ability to withstand high pressure, enabling the water temperature to reach the set temperature and ensuring that the interaction interface between the sample to be tested and the corrosion liquid can receive irradiation at a controlled dose rate.

[0048] The material type of the kettle body 20 is not limited.

[0049] For example, the material type of the kettle body 20 is 316 stainless steel. Thus, the kettle body 20 has good corrosion resistance and high temperature and high pressure resistance.

[0050] The pressure range that the kettle body 20 can withstand is not limited.

[0051] For example, the pressure range that the kettle body 20 can withstand is greater than 0 MPa and less than or equal to 16 MPa.

[0052] The temperature range that the kettle body 20 can withstand is not limited.

[0053] For example, the temperature range that the kettle body 20 can withstand is greater than or equal to room temperature and less than or equal to 350 °C.

[0054] The corrosion cell 21 refers to the component that holds the corrosive liquid.

[0055] The sample mounting position 22 refers to the component used to mount the sample to be tested.

[0056] The structural type of the sample mounting position 22 is not limited.

[0057] For example, the sample mounting position 22 includes a clamping mechanism. Thus, the sample can be better fixed on the sample mounting position 22.

[0058] The sample to be tested is mounted on the sample mounting position 22, and the corrosion cell 21 supplies liquid to the sample to be tested so that at least part of the area of the sample to be tested close to the first accommodation cavity 21a is in a corrosion environment, and at least part of the area on the other side of the sample to be tested receives the particle beam after being energy-descended by the energy descender 12, thereby realizing the coupling effect of irradiation and corrosion.

[0059] It can be understood that the side of the first accommodation cavity 21a close to the sample mounting position 22 has an opening, and the corrosive liquid supplies liquid to the sample mounting position 22 through the opening. When the sample to be tested is mounted on the sample mounting position 22, the sample to be tested can block the opening, thereby avoiding the leakage of the corrosive liquid.

[0060] The volume of the first accommodation cavity 21a is not limited.

[0061] For example, the volume of the corrosive liquid in the first accommodation cavity 21a is greater than or equal to 10 ml and less than or equal to 20 ml.

[0062] The radiation corrosion coupling test device of the embodiment of the present application includes a particle acceleration assembly 10 and a kettle body 20. The particle acceleration assembly 10 includes a particle accelerator 11 and an energy degrader 12. The kettle body 20 includes a corrosion pool 21 and a sample mounting position 22. The outlet end of the particle accelerator 11 faces the sample mounting position 22. The corrosion pool 21 has a first accommodating chamber 21a. The first accommodating chamber 21a contains a corrosive liquid. The first accommodating chamber 21a is located on the side of the sample mounting position 22 away from the particle accelerator 11, so as to supply liquid to the sample mounting position 22. The energy degrader 12 is located between the outlet end of the particle accelerator 11 and the kettle body 20 to adjust the energy level of the particle flow emitted by the particle accelerator 11. Therefore, by setting the energy degrader 12, the energy of the particle flow irradiated to the sample to be tested can be adjusted, so that the test device can conduct experiments on a variety of samples to be tested with different thicknesses and materials, meet diverse experimental needs, and expand the test range.

[0063] In one embodiment, please refer to Figure 1 Along the moving direction of the particle flow, the particle acceleration assembly 10 and the kettle body 20 are arranged at intervals. In this way, when the sample to be tested is subjected to high pressure and ruptures, the risk of corrosive liquid invading the interior of the particle accelerator 11 and causing equipment damage can be avoided, thereby improving the safety of the test.

[0064] Specifically, the moving direction of the particle flow refers to the propagation path of the particles from being generated and ejected from the particle accelerator 11 , to being de-energized by the de-energizer 12 and irradiated onto the sample to be tested.

[0065] The spacing between the particle acceleration assembly 10 and the kettle body 20 can be determined according to specific test requirements.

[0066] In one embodiment, please refer to Figure 1 The particle acceleration assembly 10 further includes a collimator 13, which is located between the kettle 20 and the energy degrader 12. After the particle accelerator 11 generates and emits a particle flow, the energy degrader 12 reduces the energy of the particle flow. However, the energy reduction process is often accompanied by the expansion of the beam spot. Therefore, by providing the collimator 13, the particle flow can be made more concentrated and directed, ensuring that the particles are accurately irradiated onto the sample in the kettle 20. This helps to improve the accuracy and uniformity of irradiation and reduce the problem of insufficient or excessive irradiation of a part of the sample area due to the divergence of the particle flow.

[0067] Specifically, the number of collimators 13 is not limited.

[0068] For example, the collimator 13 includes a large collimator 13 and a small collimator 13. Thus, the cross section and energy distribution of the particle flow can be flexibly adjusted through the combination of the large collimator 13 and the small collimator 13, so as to achieve multi-level optimization of the particle flow and ensure that the particle flow has the best focusing effect and energy distribution when reaching the sample.

[0069] In one embodiment, please refer to Figure 1 , the particle acceleration assembly 10 further includes a Faraday cup 14. The Faraday cup 14 is located at the outlet end of the collimator 13 and communicates with the collimator 13. Along the movement direction of the particle flow, the Faraday cup 14 and the kettle body 20 are arranged at intervals. Thus, the energy of the particle flow emitted from the collimator 13 can be measured in real time and accurately by the Faraday cup 14, which is convenient for the energy reducer 12 to adjust the energy of the particle flow emitted from the particle accelerator 11, so that the energy of the particle flow after energy reduction reaches the preset level.

[0070] In one embodiment, please refer to Figure 1 , the test device further includes a solution circulation system 30. The kettle body 20 has a liquid inlet 20a and a liquid outlet 20b. The liquid inlet 20a and the liquid outlet 20b are respectively communicated with the first accommodation cavity 21a. The two ends of the solution circulation system 30 are respectively communicated with the liquid inlet 20a and the liquid outlet 20b. Thus, the corrosive liquid is continuously circulated through the solution circulation system 30. On the one hand, it can keep the sample to be tested in a state of being continuously corroded by the corrosive liquid, making the corrosion process continue and improving the corrosion reaction rate. At the same time, it effectively reduces the potential interference of irradiation on the corrosive liquid and the corrosion process, so that the corrosion phenomenon of the sample to be tested is mainly affected by the corrosive liquid itself. On the other hand, it can effectively avoid the uneven concentration of the corrosive liquid in the kettle body 20, thereby improving the stability of the corrosion environment and making the corrosion process of the sample to be tested more uniform.

[0071] Specifically, the liquid inlet 20a refers to the opening through which the corrosive liquid in the solution circulation system 30 enters the first accommodation cavity 21a.

[0072] The liquid outlet 20b refers to the opening through which the corrosive liquid in the first accommodation cavity 21a returns to the solution circulation system 30.

[0073] The solution circulation system 30 communicates with the kettle body 20 to form a closed-loop circulation path for the corrosive liquid, thereby realizing the closed-loop circulation flow of the corrosive liquid.

[0074] In one embodiment, please refer to Figure 1, the solution circulation system 30 includes a circulation pipeline 31, a temperature and pressure increasing component 32, and a temperature and pressure decreasing component 33. One end of the circulation pipeline 31 is communicated with the liquid inlet 20a, and the other end is communicated with the liquid outlet 20b. The temperature and pressure increasing component 32 is located on the circulation pipeline 31 and is arranged close to the liquid inlet 20a. The temperature and pressure decreasing component 33 is located on the circulation pipeline 31 and is arranged close to the liquid outlet 20b. Thus, on the one hand, the temperature and pressure increasing component 32 can raise the temperature and pressure of the corrosive liquid to the high temperature and high pressure conditions required for the experiment, and can more realistically simulate the corrosion environment of materials under actual working conditions such as nuclear reactors, thereby improving the accuracy of the experimental results. On the other hand, the temperature and pressure decreasing component 33 timely reduces the temperature and pressure of the corrosive liquid after it flows out of the kettle body 20, avoiding harm to subsequent equipment and operators caused by the high temperature and high pressure corrosive liquid.

[0075] Specifically, the circulation pipeline 31 refers to the pipeline connecting the liquid inlet 20a and the liquid outlet 20b of the kettle body 20, providing a channel for the circulating flow of the corrosive liquid.

[0076] The temperature and pressure increasing component 32 refers to the component that raises the temperature and pressure of the corrosive liquid.

[0077] The temperature and pressure decreasing component 33 refers to the component that reduces the temperature and pressure of the corrosive liquid.

[0078] The material type of the circulation pipeline is not limited.

[0079] For example, the material type of at least part of the circulation pipeline is 316 stainless steel with good corrosion resistance and high temperature resistance.

[0080] Placing the temperature and pressure increasing component 32 on the circulation pipeline 31 and arranging it close to the liquid inlet 20a can reduce the loss of heat and pressure during the transportation of the corrosive liquid, enabling the corrosive liquid to enter the kettle body 20 in a set high temperature and high pressure state, thereby improving the accuracy of the experiment.

[0081] Placing the temperature and pressure decreasing component 33 on the circulation pipeline 31 and arranging it close to the liquid outlet 20b can quickly reduce the temperature and pressure of the corrosive liquid as soon as it flows out of the kettle body 20, thereby avoiding harm to subsequent equipment and operators caused by the high temperature and high pressure corrosive liquid.

[0082] The working displacement range of the circulation pipeline 31 is not limited.

[0083] Exemplarily, the working displacement of the circulation pipeline 31 is less than or equal to 20 ml / min. For example, the working displacement of the circulation pipeline 31 is 5 ml / min, 10 ml / min, 15 ml / min or 20 ml / min. Thus, by maintaining the working displacement of the circulation pipeline 31 within the above range, the corrosive liquid can flow rapidly in the circulation pipeline 31 and the kettle body 20, avoiding the situation of uneven local corrosive liquid concentration. At the same time, the rate of the corrosion reaction can also be increased.

[0084] In one embodiment, please refer to Figure 1 , the solution circulation system 30 further includes a water tank 311. The circulation pipeline 31 includes a main liquid supply path 312 and a circulation branch path 313. One end of the main liquid supply path 312 is communicated with the liquid inlet 20a, and the other end is communicated with the liquid outlet 20b. The water tank 311, the temperature increasing and pressure boosting assembly 32 and the temperature decreasing and pressure reducing assembly 33 are all located on the main liquid supply path 312. Moreover, the temperature increasing and pressure boosting assembly 32 is located between the liquid supply port of the water tank 311 and the liquid inlet 20a, and the temperature decreasing and pressure reducing assembly 33 is located between the return port of the water tank 311 and the liquid outlet 20b. The liquid inlet end of the circulation branch path 313 is connected to the main liquid supply path 312 between the liquid supply port and the temperature increasing and pressure boosting assembly 32, and the liquid outlet end of the circulation branch path 313 is communicated with the water tank 311.

[0085] Specifically, the water tank 311 refers to a component for storing and supplying the corrosive liquid to the circulation pipeline 31.

[0086] The number of the water tanks 311 is not limited.

[0087] For example, the solution circulation system 30 includes two water tanks 311, and different water tanks 311 are configured with different corrosive liquids to supply the required corrosive liquid to the circulation pipeline 31 according to the actual situation.

[0088] The main liquid supply path 312 refers to a channel connecting the liquid inlet 20a and the liquid outlet 20b of the kettle body 20. The corrosive liquid flows out of the water tank 311, enters the kettle body 20 after temperature increasing and pressure boosting, and then flows out of the kettle body 20 and returns to the water tank 311 after temperature decreasing and pressure reducing.

[0089] The circulation branch path 313 refers to a channel connecting the main liquid supply path 312 and the water tank 311 for adjusting the dissolved oxygen and conductivity levels of the corrosive liquid in the water tank 311.

[0090] The liquid supply port refers to an opening on the water tank 311 for supplying the corrosive liquid to the main liquid supply path 312.

[0091] The return port refers to an opening on the water tank 311 for receiving the corrosive liquid flowing back from the main liquid supply path 312.

[0092] The corrosive liquid in the water tank 311 enters the circulation branch 313 through the main liquid supply path 312. The circulation branch 313 returns the corrosive liquid with the dissolved oxygen and conductivity levels reaching the preset values to the water tank 311. Subsequently, the corrosive liquid that meets the requirements enters the main liquid supply path 312, enters the kettle body 20 after being heated and pressurized, and then flows out of the kettle body 20 and returns to the water tank 311 after being cooled and depressurized.

[0093] In one embodiment, please refer to Figure 1 , the test device further includes a dissolved oxygen measuring component 40, and the dissolved oxygen measuring component 40 is located on the circulation branch 313. Thus, on the one hand, it can monitor the dissolved oxygen content in the corrosive liquid in real time and accurately, so that the dissolved oxygen content can be adjusted in time, the corrosion environment can be optimized, and the accuracy of the experiment can be improved. On the other hand, by detecting the dissolved oxygen, it can directly reflect the corrosion behavior and reaction rate of the irradiated accelerated sample, and then reflect the corrosion resistance of the sample to be tested.

[0094] Specifically, the measurement range of the dissolved oxygen measuring component 40 is not limited.

[0095] For example, the measurement range of the dissolved oxygen measuring component 40 is greater than 0 and less than or equal to 2000 ug / L.

[0096] In one embodiment, please refer to Figure 1 , the test device further includes a conductivity measuring component 50, and the conductivity measuring component 50 is located on the circulation branch 313. Thus, on the one hand, it can monitor the conductivity level in the corrosive liquid in real time and accurately, so that the conductivity can be adjusted in time, the corrosion environment can be optimized, and the accuracy of the experiment can be improved. On the other hand, by detecting the conductivity, it can directly reflect the corrosion behavior and reaction rate of the irradiated accelerated sample, and then reflect the corrosion resistance of the sample to be tested.

[0097] Specifically, the measurement range of the conductivity measuring component 50 is not limited.

[0098] For example, the measurement range of the conductivity measuring component 50 is greater than 0 and less than or equal to 2000 mS / cm.

[0099] In one embodiment, please refer to Figure 1 , the test device includes an electrochemical measuring component 60, and the electrochemical measuring component 60 includes a working electrode, and the working electrode is electrically connected to the corrosive liquid. Thus, through the electrical connection between the working electrode and the corrosive liquid, parameters such as current and potential passing through the sample to be tested during the corrosion process can be obtained in real time, so as to understand the influence of corrosion on the surface of the sample to be tested.

[0100] Specifically, the structural type of the electrochemical measuring component 60 is not limited.

[0101] For example, the electrochemical measurement component 60 is a three - electrode system. The three - electrode system includes a configured Pd / H2 reference electrode. The Pd / H2 reference electrode is a reversible hydrogen electrode (RHE). In an oxygen - free environment with a known pH value, the electrode follows the H2 / H+ equilibrium curve.

[0102] In a specific embodiment, the target electrode in the three - electrode system is a solid - state electrode, which facilitates the maintenance of the electrode.

[0103] In a specific embodiment, the test device further includes measurement and control software and a control system. The measurement and control software and the control system are electrically connected. The measurement and control software can achieve the communication and recording of measurement parameters. The control system finely controls the parameters in the relevant corrosion liquid according to the set value to ensure the stability of the corrosion liquid environment during long - term tests.

[0104] In one embodiment, please refer to Figure 1 , the kettle body 20 further includes an outer shell 23. The outer shell 23 has a second accommodation cavity, and the corrosion cell 21 is located in the second accommodation cavity.

[0105] The kettle body 20 further includes a heat - insulating member 24. The heat - insulating member 24 is located in the second accommodation cavity and on the outer peripheral side of the corrosion cell 21. Thus, it can effectively reduce the heat dissipation of the corrosion liquid in the corrosion cell 21, keep the temperature in the corrosion cell 21 relatively constant, avoid the change of the corrosion rate caused by temperature fluctuations, and thus improve the stability and reliability of the experimental results.

[0106] Specifically, the material type of the heat - insulating member 24 is not limited.

[0107] For example, the heat - insulating member 24 is a aluminosilicate filling material.

[0108] The thickness of the heat - insulating member 24 is determined according to the actual situation so that the heat - insulating member 24 has good heat - insulating performance.

[0109] In one embodiment, please refer to Figure 1 , the kettle body 20 further includes an outer shell 23. The outer shell 23 has a second accommodation cavity, and the corrosion cell 21 is located in the second accommodation cavity.

[0110] The outer shell 23 has a first opening, and the corrosion cell 21 has a second opening. The first opening and the second opening are connected to form a communication channel. The test device further includes a temperature - measuring component 70. At least part of the temperature - measuring component 70 passes through the communication channel and is disposed in the first accommodation cavity 21a. Thus, the temperature of the corrosion liquid can be monitored in real time, and the experimental conditions can be adjusted in time.

[0111] Specifically, the first opening refers to the hole opened on the outer shell 23.

[0112] The second opening refers to the hole opened on the corrosion cell 21.

[0113] The communication channel refers to the channel formed by the communication between the first opening and the second opening for the temperature measuring member 70 to pass through and enter the first accommodation cavity 21a.

[0114] In one embodiment, please refer to Figure 1 , the testing device further includes a collecting member 80, and the kettle body 20 further includes a beam channel 20c. The beam channel 20c is located on the side of the sample mounting position 22 away from the first accommodation cavity 21a to guide the particle flow to irradiate the sample to be tested on the sample mounting position 22. The collecting member 80 is located on the side of the beam channel 20c close to the first accommodation cavity 21a. Thus, on the one hand, the beam channel 20c can enable the particle beam to accurately irradiate the sample to be tested, improving the accuracy of the irradiation process. On the other hand, the collecting member 80 can timely collect the corrosive liquid leaked from the first accommodation cavity 21a, thereby effectively protecting the equipment from damage.

[0115] Specifically, the collecting member 80 refers to a component for collecting the corrosive liquid leaked from the first accommodation cavity 21a.

[0116] The structure type of the collecting member 80 is not limited.

[0117] For example, the collecting member 80 is a collecting bottle.

[0118] The beam channel 20c refers to a component for guiding the particle flow to reach the sample to be tested along a specific path so that the particle flow can accurately irradiate the sample.

[0119] The maximum pressure that the sample can withstand is tested by the testing device. During the test, the sample to be tested is placed on the sample mounting position 22, and the pressure is gradually increased until the sample to be tested breaks. Once the sample to be tested breaks, the corrosive liquid will leak from the opening on the side of the first accommodation cavity 21a close to the sample mounting position 22. Thus, by arranging the collecting member 80 on the side of the beam channel 20c close to the first accommodation cavity 21a, the corrosive liquid leaked from the first accommodation cavity 21a after the sample breaks can be timely collected, thereby effectively protecting the equipment from damage.

[0120] In one embodiment, the testing device further includes a display screen, a pressure sensor, a flow rate sensor and a control component. The pressure sensor is used to measure the pressure in the circulation pipeline 31 and the first accommodation cavity 21a, and the flow rate sensor is used to measure the flow rate of the corrosive liquid in the circulation pipeline 31 and the first accommodation cavity 21a. The pressure sensor, the temperature measuring member 70, the flow rate sensor and the control component are respectively electrically connected to the display screen. Thus, the pressure, temperature and flow rate conditions in the testing device can be intuitively obtained through the display screen. When the temperature, pressure and flow rate in the testing device are abnormal, the control component can issue an alarm and automatically switch the start and stop of the testing device to make the testing device operate safely.

[0121] In one embodiment, the testing device further includes a preheater, which is located on the main liquid supply path 312 and is disposed on the side of the temperature and pressure booster away from the kettle body 20 to preheat the corrosive liquid entering the temperature and pressure booster. Thus, it is possible to avoid the temperature and pressure booster from performing a drastic temperature and pressure boosting operation on a large amount of low-temperature corrosive liquid in a short period of time, thereby reducing the safety risks caused by sudden changes in temperature and pressure.

[0122] In one embodiment, please refer to Figure 2 , a testing method for a testing device includes the following steps:

[0123] Step S1: Calculate the specific area and penetration depth of the sample to be tested irradiated through finite element analysis software and SRIM software.

[0124] Step S2: Install the sample to be tested on the sample mounting position 22 and connect the solution circulation system 30 to the first accommodation cavity 21a.

[0125] Step S3: Set the parameters of the electrochemical measurement component 60 according to the set conditions.

[0126] Step S4: Equip two water tanks 311, and different solutions are configured in different water tanks 311.

[0127] Step S5: Adjust the dissolved oxygen in the solution in the water tank 311 by self-circulation through the circulation pump so that the dissolved oxygen and conductivity in the solution reach the set conditions.

[0128] Step S6: Open the high-pressure pump valve to make the corrosive liquid flow through the preheater, the first accommodation cavity 21a, the temperature and pressure reduction component 33, and the back pressure valve in sequence from the water tank 311.

[0129] Step S7: Observe the flow display at the rear end of the back pressure valve to ensure that the circulation pipeline 31 is filled with the corrosive liquid, and adjust the back pressure valve to make the pressure in the circulation pipeline 31 reach the preset experimental pressure value.

[0130] Step S8: Set the experimental temperature. After the temperature and pressure are stable, adjust the energy level of the particle beam emitted by the particle accelerator 11 through the energy reducer 12 to conduct an irradiation experiment on the sample to be tested.

[0131] Step S9: After the experiment is completed, cool down and reduce the pressure of the corrosive liquid in the circulation pipeline 31 through the temperature and pressure reduction component 33. After the circulation pipeline 31 returns to normal temperature and pressure, take out the sample to be tested.

[0132] Specifically, two water tanks 311 are provided, and different solutions are configured in different water tanks 311. Thus, different corrosive liquids can be switched in the circulation pipeline 31 according to the experimental requirements, thereby improving the testing efficiency.

[0133] In the description of the present application, the descriptions with reference to terms such as "in one embodiment", "in some embodiments", "in a specific embodiment", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine the different embodiments or examples described in the present application and the features of the different embodiments or examples.

[0134] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are all included within the protection scope of the present application.

Claims

1. A radiation corrosion coupling test device, characterized in that: include: A particle acceleration assembly, the particle acceleration assembly comprising a particle accelerator and an energy degrader; A kettle body, the kettle body comprising a corrosion pool and a sample installation position, the outlet end of the particle accelerator faces the sample installation position, the corrosion pool has a first accommodating cavity, the first accommodating cavity contains a corrosion liquid, and the first accommodating cavity is located at a side of the sample installation position away from the particle accelerator, so as to supply liquid to the sample installation position; The energy degrader is located between the exit end of the particle accelerator and the kettle body to adjust the energy level of the particle flow ejected from the particle accelerator.

2. The testing device according to claim 1, characterized in that: Along the moving direction of the particle flow, the particle acceleration component and the kettle body are arranged at intervals.

3. The testing device according to claim 1, characterized in that: The particle acceleration assembly further includes a collimator, which is located between the kettle and the energy degrader.

4. The testing device according to claim 3, characterized in that: The particle acceleration assembly further comprises a Faraday cage, which is located at the outlet end of the collimator and communicated with the collimator. Along the moving direction of the particle flow, the Faraday cage is spaced apart from the kettle.

5. The testing device according to claim 1, characterized in that: The testing device also includes a solution circulation system. The kettle body has a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet are respectively connected to the first containing cavity. Two ends of the solution circulation system are respectively connected to the liquid inlet and the liquid outlet.

6. The testing device according to claim 5, characterized in that: The solution circulation system includes a circulation pipeline, a temperature-increasing and pressure-increasing component and a temperature-increasing and pressure-reducing component. One end of the circulation pipeline is connected to the liquid inlet, and the other end is connected to the liquid outlet. The temperature-increasing and pressure-increasing component is located on the circulation pipeline and is arranged close to the liquid inlet. The temperature-increasing and pressure-reducing component is located on the circulation pipeline and is arranged close to the liquid outlet.

7. The testing device according to claim 6, characterized in that: The solution circulation system also includes a water tank, the circulation pipeline includes a liquid supply main circuit and a circulation branch circuit, one end of the liquid supply main circuit is connected to the liquid inlet, and the other end is connected to the liquid outlet, the water tank, the temperature increase and pressure increase component and the temperature decrease and pressure reduction component are all located on the liquid supply main circuit, and the temperature increase and pressure increase component is located between the liquid supply inlet and the liquid inlet of the water tank, the temperature decrease and pressure reduction component is located between the reflux port and the liquid outlet of the water tank, the liquid inlet end of the circulation branch circuit is connected to the liquid supply main circuit between the liquid supply inlet and the temperature increase and pressure increase component, and the liquid outlet end of the circulation branch circuit is connected to the water tank; The testing device further comprises a dissolved oxygen measuring device, wherein the dissolved oxygen measuring device is located on the circulation branch; and / or, The testing device further comprises a conductivity measuring device, and the conductivity measuring device is located on the circulation branch.

8. The testing device according to any one of claims 1 to 7, characterized in that: The testing device comprises an electrochemical measuring component, and the electrochemical measuring component comprises a working electrode, and the working electrode is electrically connected to the corrosive liquid.

9. The testing device according to any one of claims 1 to 7, characterized in that: The kettle body also includes an outer shell, the outer shell has a second accommodating cavity, and the corrosion pool is located in the second accommodating cavity; The kettle body further comprises a heat-insulating member, which is located in the second containing cavity and on the outer peripheral side of the corrosion pool; and / or, The outer shell has a first opening, the corrosion pool has a second opening, the first opening is connected to the second opening to form a connecting channel, and the testing device also includes a temperature measuring component, at least a part of the temperature measuring component is arranged in the first accommodating cavity through the connecting channel.

10. The testing device according to any one of claims 1 to 7, characterized in that: The testing device also includes a collecting piece, and the kettle body also includes a beam channel, which is located on a side of the sample mounting position away from the first containing cavity to guide the particle flow to irradiate the sample to be tested on the sample mounting position, and the collecting piece is located on a side of the beam channel close to the first containing cavity.

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