Test device and test method for coupling effect of particle irradiation and high-temperature liquid corrosion

Abstract

The present application relates to a kind of particle irradiation and high temperature liquid corrosion coupling effect test device and test method.The test device includes particle accelerator, first corrosion liquid shell, first heating piece and purging piece, and particle accelerator includes accelerator main machine, beam pipeline and transmission film.In the test device, the multi-physical field coupling environment of high temperature, irradiation and corrosion liquid can be formed, and the multi-physical field coupling physical examination for the test of in-pile material is provided.In addition, in the test device, mainly through the cooperation design of beam pipeline, transmission film, purging piece and first corrosion liquid shell, particle flow can be introduced to atmospheric environment, and then high temperature-irradiation-corrosion coupling test is carried out in first corrosion liquid shell, the influence of corrosion liquid on accelerator main machine is effectively avoided, so that accelerator main machine can be effectively protected, and the safety of test is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear materials, in particular to a testing device and testing method for coupling effect of particle irradiation and high-temperature liquid corrosion. BACKGROUND

[0002] The fourth generation nuclear reactors such as lead-cooled fast reactor (LFR), molten salt reactor (MSR) and sodium-cooled fast reactor (SFR) are widely concerned by the scientific and engineering communities. The performance testing of in-pile materials such as fuel cladding and pressure vessel is a key problem affecting the successful development of the reactor. Different from other industrial application fields, the service conditions of the above in-pile materials are often in a multi-physical field coupling environment, which usually needs to withstand the coupling effects of high temperature, particle irradiation and liquid corrosion. Therefore, the multi-physical field coupling test close to the actual working conditions is of great significance to the development of in-pile materials.

[0003] With the continuous deepening of the research on in-pile materials, the testing device for testing in-pile materials is also constantly updated. One of the main updates of the testing device is from a single physical field testing device to a multi-physical field coupling testing device. Through the multi-physical field coupling testing device, multiple coupled physical fields can be provided for the testing of in-pile materials, so that the testing environment is closer to the actual use conditions of in-pile materials. Although the traditional multi-physical field coupling testing device has made great progress compared with the single physical field testing device. However, the traditional multi-physical field coupling testing device usually places the sample of the material to be tested in the vacuum environment of the accelerator. Once the isolation window is damaged, the corrosive liquid can easily rush into the vacuum environment of the accelerator, and in severe cases, it can cause damage to the main machine of the accelerator, causing great economic loss. SUMMARY

[0004] Therefore, it is necessary to provide a testing device and testing method for coupling effect of particle irradiation and high-temperature liquid corrosion, which can effectively protect the main machine of the accelerator.

[0005] In order to solve the above technical problems, the technical scheme of an embodiment of the present application is as follows:

[0006] A testing device for coupling effect of particle irradiation and high-temperature liquid corrosion, comprising a particle accelerator, a first corrosive liquid shell, a first heating member and a purging member.

[0007] The particle accelerator comprises an accelerator main machine, a beam pipeline and a transmission film, the beam pipeline is connected to the accelerator main machine, and the transmission film is arranged at the outlet end of the beam pipeline; the outlet end of the beam pipeline is arranged opposite to the first corrosive liquid shell and a purging area is formed between the outlet end of the beam pipeline and the first corrosive liquid shell; the purging member is used for purging the purging area.

[0008] The beam pipeline is used to guide the particle flow generated by the accelerator host to pass through the transmission film and target irradiation on the sample to be tested in the inner cavity of the first corrosion liquid shell.

[0009] The first heating member is connected to the first corrosion liquid shell for heating the first corrosion liquid shell.

[0010] In one of the embodiments, the testing device of the particle irradiation and high-temperature liquid corrosion coupling effect further comprises a first sealing member connected to the first corrosion liquid shell, wherein a through hole is arranged on the first sealing member for the particle flow to pass through, and a sample mounting position is arranged on the side of the first sealing member facing the inner cavity of the first corrosion liquid shell, and the sample mounting position is at least partially surrounded by the outer edge of the through hole.

[0011] In one of the embodiments, the distance between the transmission film and the first sealing member is 0.8mm-1.5mm.

[0012] In one of the embodiments, the diameter of the through hole is 1mm-3mm.

[0013] In one of the embodiments, the thickness of the transmission film is 5μm-50μm.

[0014] In one of the embodiments, the testing device further comprises a first oxygen measuring member and a first temperature measuring member, wherein the first oxygen measuring member is connected to the first corrosion liquid shell for detecting the oxygen content of the corrosion liquid inside the first corrosion liquid shell, and the first temperature measuring member is connected to the first corrosion liquid shell for detecting the temperature of the corrosion liquid inside the first corrosion liquid shell.

[0015] In one of the embodiments, the testing device further comprises a corrosion liquid inlet mechanism, wherein the corrosion liquid inlet mechanism comprises a second corrosion liquid shell, a corrosion liquid inlet pipeline, and a second heating member connected to the second corrosion liquid shell for heating the second corrosion liquid shell, and the two ends of the corrosion liquid inlet pipeline are connected to the first corrosion liquid shell and the second corrosion liquid shell respectively for transferring the corrosion liquid in the second corrosion liquid shell to the first corrosion liquid shell.

[0016] In one of the embodiments, the corrosion liquid inlet mechanism further comprises a second temperature measuring member and a second oxygen measuring member, wherein the second temperature measuring member is connected to the second corrosion liquid shell for detecting the temperature of the corrosion liquid inside the second corrosion liquid shell, and the second oxygen measuring member is connected to the second corrosion liquid shell for detecting the oxygen content of the corrosion liquid inside the second corrosion liquid shell.

[0017] In one of the embodiments, the etching liquid inlet mechanism further comprises a gas suction pump connected to the second etching liquid shell for suctioning gas from the second etching liquid shell.

[0018] In one of the embodiments, the etching liquid inlet mechanism further comprises a protective gas supply connected to the second etching liquid shell for supplying protective gas to the second etching liquid shell.

[0019] In one of the embodiments, the testing device further comprises an etching liquid outlet mechanism, which comprises a third etching liquid shell and an etching liquid outlet pipeline; two ends of the etching liquid outlet pipeline are connected to the first etching liquid shell and the third etching liquid shell respectively for transferring etching liquid in the first etching liquid shell to the third etching liquid shell.

[0020] A testing method for particle irradiation and high-temperature liquid corrosion coupling effect, which adopts the testing device in any one of the above embodiments, and comprises the following steps:

[0021] installing a sample to be tested in the inner cavity of the first etching liquid shell and adding etching liquid in the first etching liquid shell;

[0022] heating the first etching liquid shell by the first heating element;

[0023] purging the purging area by the purging element;

[0024] generating a particle flow by an accelerator host; the particle flow passes through the beam pipeline, then passes through the transmission film and the purging area in sequence, and performs particle irradiation on the sample to be tested.

[0025] The testing device for particle irradiation and high-temperature liquid corrosion coupling effect comprises a particle accelerator, a first etching liquid shell, a first heating element and a purging element, and the particle accelerator comprises an accelerator host, a beam pipeline and a transmission film. In the testing device, a high-temperature, irradiation and etching liquid multi-physical field coupling environment can be formed, thereby providing a multi-physical field coupling examination for the testing of in-pile materials. In addition, in the testing device, the particle flow can be led out to the atmospheric environment through the cooperation of the beam pipeline, the transmission film, the purging element and the first etching liquid shell, and then the high-temperature-irradiation-corrosion coupling test can be performed in the first etching liquid shell, thereby effectively avoiding the influence of the etching liquid on the accelerator host, which can effectively protect the accelerator host and improve the safety of the testing.

[0026] Further, the testing device for the coupling effect of particle irradiation and high-temperature liquid corrosion further comprises a corrosion liquid inlet mechanism, which comprises a second corrosion liquid shell, a corrosion liquid inlet pipeline and a second heating element connected to the second corrosion liquid shell for heating the second corrosion liquid shell; two ends of the corrosion liquid inlet pipeline are connected to the first corrosion liquid shell and the second corrosion liquid shell respectively for transferring the corrosion liquid in the second corrosion liquid shell to the first corrosion liquid shell. Through the corrosion liquid inlet mechanism, the temperature of the corrosion liquid can be preliminarily controlled, and the corrosion liquid with the preliminarily controlled temperature is transferred to the first corrosion liquid shell, so that the stability and accuracy of the temperature of the corrosion liquid in the first corrosion liquid shell can be effectively maintained, and the accuracy of the test is improved.

[0027] Further, the corrosion liquid inlet mechanism further comprises an air extraction pump connected to the second corrosion liquid shell for extracting air from the second corrosion liquid shell, so as to reduce the vacuum degree in the second corrosion liquid shell. The corrosion liquid inlet mechanism further comprises a protective gas supply element connected to the second corrosion liquid shell for supplying protective gas to the second corrosion liquid shell. Through the air extraction pump and the protective gas supply element, the oxygen content of the corrosion liquid in the second corrosion liquid shell can be controlled, so that the oxygen content of the corrosion liquid entering the first corrosion liquid shell can be ensured, that is, the oxygen content of the corrosion liquid in the first corrosion liquid shell can be accurately controlled, and the accuracy of the test is further improved.

[0028] Further, the testing device for the coupling effect of particle irradiation and high-temperature liquid corrosion further comprises a corrosion liquid outlet mechanism. The corrosion liquid outlet mechanism comprises a third corrosion liquid shell and a corrosion liquid outlet pipeline; two ends of the corrosion liquid outlet pipeline are connected to the first corrosion liquid shell and the third corrosion liquid shell respectively for transferring the corrosion liquid in the first corrosion liquid shell to the third corrosion liquid shell. Through the corrosion liquid outlet mechanism and the corrosion liquid inlet mechanism, the corrosion liquid in the first corrosion liquid shell can be conveniently and timely replaced, and the stability of the corrosion liquid parameters in the first corrosion liquid shell can be maintained, so that the accuracy of the test can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a schematic view of a testing device for the coupling effect of particle irradiation and high-temperature liquid corrosion according to an embodiment of the present application.

[0030] Marked in the figure:

[0031] 1, first etching liquid shell; 2, first heating part; 3, first heat preservation layer; 4, second etching liquid shell; 5, second heating part; 6, second heat preservation layer; 7, third etching liquid shell; 8, third heat preservation layer; 9, protective gas supply part; 10, air pump; 11, etching liquid inlet pipeline; 12, inlet valve; 13, etching liquid outlet pipeline; 14, outlet valve; 15, protective gas inlet pipeline; 16, air outlet pipeline; 17, inlet liquid level detector; 18, second temperature measuring part; 19, second oxygen measuring part; 20, outlet liquid level detector; 21, first oxygen measuring part; 22, first temperature measuring part; 23, first sealing part; 24, accelerator main machine; 25, beam pipeline; 26, transmission film; 27, helium gas cylinder; 28, air blower; 29, sample to be measured; 30, etching liquid; 31, particle beam; 32, helium gas; 33, air blowing pipeline; 34, second sealing part; 35, third sealing part. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0035] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0037] Please refer to Figure 1 An embodiment of the present application provides a test device for particle irradiation and high-temperature liquid corrosion coupling effect. The test device comprises a particle accelerator, a first corrosion liquid shell 1, a first heating element 2 and a blowing element. The particle accelerator comprises an accelerator main machine 24, a beam pipeline 25 and a transmission film 26. The beam pipeline 25 is connected to the accelerator main machine 24, and the transmission film 26 is arranged at the outlet end of the beam pipeline 25. The outlet end of the beam pipeline 25 is arranged opposite to the first corrosion liquid shell 1, and a blowing area is formed between the outlet end of the beam pipeline 25 and the first corrosion liquid shell 1. The blowing element is used for blowing the blowing area. The beam pipeline 25 is used for guiding the particle flow generated by the accelerator main machine 24 to pass through the transmission film 26 and irradiate the sample to be tested in the cavity of the first corrosion liquid shell 1. The first heating element 2 is connected to the first corrosion liquid shell 1 to heat the first corrosion liquid shell 1.

[0038] The test device in the embodiment comprises a particle accelerator, a first corrosion liquid shell 1, a first heating element 2 and a blowing element, and the particle accelerator comprises an accelerator main machine 24, a beam pipeline 25 and a transmission film 26. In the test device, a multi-physical field coupling environment of high temperature, irradiation and corrosion liquid 30 can be formed, and a multi-physical field coupling examination is provided for the test of in-pile materials. In addition, in the test device, the particle flow can be guided out to the atmospheric environment through the cooperation of the beam pipeline 25, the transmission film 26, the blowing element and the first corrosion liquid shell 1, and then the high-temperature-irradiation-corrosion coupling test is carried out in the first corrosion liquid shell 1, which effectively avoids the influence of the corrosion liquid 30 on the accelerator main machine 24, so that the accelerator main machine 24 can be effectively protected, and the safety of the test is improved.

[0039] In addition, in the test device, the particle flow can be prevented from being greatly attenuated, the stability of the extracted particle flow can be effectively maintained, the coupling time of high temperature-irradiation-corrosion can be prolonged, and the accuracy of the high temperature-irradiation-corrosion coupling test can be improved by the cooperation of the beam pipeline 25, the transmission film 26 and the blowing member.

[0040] Meanwhile, the test device effectively solves the problems of the traditional heavy particle irradiation and corrosion device, such as the shallow irradiation depth of the sample, the shallow coupling region and the inaccurate control of the high-temperature liquid oxygen content.

[0041] In a specific example, the test device further comprises a first sealing member 23. The first sealing member 23 is connected to the first corrosion liquid shell 1, and the first sealing member 23 is provided with a through hole for the particle flow to pass through. The side of the first sealing member 23 facing the inner cavity of the first corrosion liquid shell 1 is provided with a sample mounting position, and the sample mounting position at least partially surrounds the outer edge of the through hole. Specifically, in the use process of the test device, the to-be-tested sample can be completely covered by the to-be-tested sample, and the first corrosion liquid shell can be sealed by the first sealing member and the to-be-tested sample.

[0042] In a specific example, the blowing member is a helium blowing member. At this time, the gas blown by the blowing member is helium.

[0043] It can be understood that in the test device of the embodiment, the first corrosion liquid shell 1 can be heated by the first heating member 2, so as to increase the temperature of the corrosion liquid 30 in the first corrosion liquid shell 1, and form a high-temperature test condition.

[0044] Specifically, the particles generated by the accelerator main machine 24 are protons. At this time, the test device for testing the coupling effect of particle irradiation and high-temperature liquid corrosion is a test device for testing the coupling effect of proton irradiation and high-temperature liquid corrosion.

[0045] In a specific example, the first heating member 2 is wrapped outside the first corrosion liquid shell 1. The first heating member 2 wrapped outside the first corrosion liquid shell 1 means that the first heating member 2 can wrap the outer surface of the first corrosion liquid shell 1, so as to uniformly and stably heat the first corrosion liquid shell 1, which is conducive to maintaining the stability of the temperature of the corrosion liquid 30 in the first corrosion liquid shell 1. Optionally, the material of the first heating member 2 can be silicon molybdenum rod material.

[0046] In another specific example, the distance between the transmissive film 26 and the first seal 23 is 0.8mm-1.5mm. Alternatively, the distance between the transmissive film 26 and the first seal 23 is 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm or 1.5mm. Further, the thickness of the transmissive film 26 is 5μm-50μm. As an alternative example of the transmissive film 26, the transmissive film 26 is a polyimide film. Specifically, the thickness of the polyimide film is 5μm-50μm. For example, the thickness of the polyimide film can be, but is not limited to, 5μm, 10μm, 15μm, 20μm, 25μm, 30μm, 35μm, 40μm, 45μm or 50μm. Further, the diameter of the transmissive film 26 is 3mm-10mm. For example, the diameter of the transmissive film 26 is 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm or 10mm.

[0047] In one specific example, the transmissive film 26 completely covers the outlet of the beam tube 25.

[0048] As an alternative example of the parameters of the first seal 23, the thickness of the first seal 23 is 3mm-8mm. Specifically, the thickness of the first seal 23 is 3mm, 4mm, 5mm, 6mm, 7mm or 8mm.

[0049] Further, when the through hole is provided on the first seal 23, the through hole is located at the center of the first seal 23. This facilitates the symmetry and overall installation of the testing device, and improves the neatness of the testing device. Alternatively, the diameter of the through hole is 1mm-3mm. For example, the diameter of the through hole can be, but is not limited to, 1mm, 1.5mm, 2mm, 2.5mm or 3mm. It can be understood that when the first seal 23 is installed, the first seal 23 and the first etching liquid shell 1 can be connected by a bolt. Specifically, the first seal 23 is a flange.

[0050] Please refer again to Figure 1 In one specific example of the present application, the helium purging member comprises a helium gas cylinder 27, a purging pipe 33 and a purging machine 28, and the two ends of the purging pipe 33 are connected with the helium gas cylinder 27 and the purging machine 28 respectively. During the use of the testing device, the helium 32 in the helium gas cylinder 27 is blown out by the purging machine 28, thereby forming a helium purging area between the through hole of the first seal 23 and the outlet of the beam tube 25. Specifically, the helium gas cylinder 27 is a high-pressure helium gas cylinder 27.

[0051] Please refer again to Figure 1In one specific example, the testing device further comprises a first oxygen measuring element 21 and a first temperature measuring element 22; the first oxygen measuring element 21 is connected to the first corrosive liquid shell 1 for detecting the oxygen content of the corrosive liquid 30 inside the first corrosive liquid shell 1; the first temperature measuring element 22 is connected to the first corrosive liquid shell 1 for detecting the temperature of the corrosive liquid 30 inside the first corrosive liquid shell 1. Through the arrangement of the first oxygen measuring element 21 and the first temperature measuring element 22, the oxygen content and the temperature of the corrosive liquid 30 inside the first corrosive liquid shell 1 can be monitored in real time, so as to ensure that the corrosive liquid 30 inside the first corrosive liquid shell 1 is in a stable state. Optionally, the first oxygen measuring element 21 can be a commercially available Pt alloy oxygen sensor.

[0052] In one specific example, the testing device further comprises a first heat preservation layer 3, which is wrapped outside the first corrosive liquid shell 1 for heat preservation of the first corrosive liquid shell 1. Further, the first heat preservation layer 3 is wrapped outside the first heating element 2 for heat preservation of the first corrosive liquid shell 1 and the first heating element 2. Optionally, the first heat preservation layer 3 can be made of asbestos material.

[0053] Please refer again to Figure 1 In one specific example, the testing device further comprises a corrosive liquid feeding mechanism, which comprises a second corrosive liquid shell 4, a corrosive liquid feeding pipeline 11, and a second heating element 5 connected to the second corrosive liquid shell 4 for heating the second corrosive liquid shell 4; the two ends of the corrosive liquid feeding pipeline 11 are respectively connected to the first corrosive liquid shell 1 and the second corrosive liquid shell 4 for transferring the corrosive liquid 30 in the second corrosive liquid shell 4 to the first corrosive liquid shell 1. Through the arrangement of the corrosive liquid feeding mechanism, the temperature of the corrosive liquid 30 can be preliminarily controlled, and the corrosive liquid 30 with preliminarily controlled temperature is transferred to the first corrosive liquid shell 1, so that the stability and accuracy of the temperature of the corrosive liquid 30 in the first corrosive liquid shell 1 can be effectively maintained, and the accuracy of the test is further improved.

[0054] Further, the corrosive liquid feeding mechanism further comprises a second heat preservation layer 6 wrapped outside the second corrosive liquid shell 4 for heat preservation of the second corrosive liquid shell 4. Further, the second heat preservation layer 6 is wrapped outside the second heating element 5 for heat preservation of the second corrosive liquid shell 4 and the second heating element 5. Optionally, the second heat preservation layer 6 can be made of asbestos material.

[0055] Further, the corrosive liquid feeding mechanism further comprises a second oxygen measuring element 19 and a second temperature measuring element 18; the second oxygen measuring element 19 is connected to the second corrosive liquid shell 4 for detecting the oxygen content of the corrosive liquid inside the second corrosive liquid shell 4; the second temperature measuring element 18 is connected to the second corrosive liquid shell 4 for detecting the temperature of the corrosive liquid inside the second corrosive liquid shell 4. Optionally, the second oxygen measuring element 19 can be a commercially available Pt alloy oxygen sensor.

[0056] Further, the etching liquid inlet mechanism further comprises an inlet liquid level detector 17 connected to the second etching liquid shell 4 for detecting the liquid level of the etching liquid inside the second etching liquid shell 4. Optionally, the inlet liquid level detector 17 can be a commercially available liquid lead-bismuth alloy liquid level detector.

[0057] Further, the etching liquid inlet mechanism further comprises an air extraction pump 10 connected to the second etching liquid shell 4 for extracting air from the second etching liquid shell 4, thereby reducing the vacuum degree inside the second etching liquid shell 4. It can be understood that the air extraction pump 10 is connected to the second etching liquid shell 4 through an air extraction pipeline 16. The etching liquid inlet mechanism further comprises a protective gas supply 9 connected to the second etching liquid shell 4 for providing the second etching liquid shell 4 with protective gas. It can be understood that the protective gas supply 9 is connected to the second etching liquid shell 4 through a protective gas inlet pipeline 15. The etching liquid 30 in the second etching liquid shell 4 can be controlled in oxygen content by the air extraction pump 10 and the protective gas supply 9, thereby ensuring the oxygen content of the etching liquid 30 entering the first etching liquid shell 1, i.e. the oxygen content of the etching liquid 30 in the first etching liquid shell 1 can be accurately controlled, further improving the accuracy of the test. Optionally, the protective gas provided by the protective gas supply 9 is hydrogen and argon mixed gas, wherein the atomic ratio of hydrogen to argon is 1:9.

[0058] Please refer again to Figure 1 In a specific example, the test device further comprises an etching liquid outlet mechanism, which comprises a third etching liquid shell 7 and an etching liquid outlet pipeline 13; the two ends of the etching liquid outlet pipeline 13 are connected to the first etching liquid shell 1 and the third etching liquid shell 7 respectively for transferring the etching liquid 30 in the first etching liquid shell 1 to the third etching liquid shell 7. Through the arrangement of the etching liquid outlet mechanism and the etching liquid inlet mechanism, the etching liquid 30 in the first etching liquid shell 1 can be conveniently replaced in time, maintaining the stability of the parameters of the etching liquid 30 in the first etching liquid shell 1, and thus the accuracy of the test can be improved.

[0059] Further, the etching liquid outlet mechanism further comprises an outlet liquid level detector 20 connected to the third etching liquid shell 7 for detecting the liquid level of the etching liquid inside the third etching liquid shell 7. Optionally, the outlet liquid level detector 20 can be a commercially available liquid lead-bismuth alloy liquid level detector. When it is necessary to replace the etching liquid 30 in the first etching liquid shell 1, the replacement can be determined by the liquid level of the etching liquid inside the third etching liquid shell 7 detected by the outlet liquid level detector 20. When the liquid level detected by the outlet liquid level detector 20 changes, it indicates that etching liquid is entering the third etching liquid shell 7 from the first etching liquid shell 1, which means that the etching liquid replacement is not completed. When the liquid level detected by the outlet liquid level detector 20 does not change, it indicates that no etching liquid is entering the third etching liquid shell 7 from the first etching liquid shell 1, which means that the etching liquid replacement is completed.

[0060] Further, the etching liquid outlet mechanism further comprises a third heat preservation layer 8 wrapped outside the third etching liquid shell 7 for heat preservation of the third etching liquid shell 7. Optionally, the third heat preservation layer 8 can be made of asbestos material. The third heat preservation layer 8 can effectively avoid the adverse effects of sudden temperature drop of the etching liquid 30 entering the third etching liquid shell 7. For example, when the temperature suddenly drops, the etching liquid 30 is prone to solidification, which makes it difficult for the outlet liquid level detector 20 to accurately detect the liquid level of the etching liquid 30 in the third etching liquid shell 7.

[0061] It can be understood that the etching liquid inlet pipe 11 and the etching liquid outlet pipe 13 are respectively provided with an inlet valve 12 and an outlet valve 14 to facilitate the control of the inlet and outlet of the etching liquid 30.

[0062] In a specific example, the protective gas inlet pipe 15, the exhaust pipe 16, the etching liquid inlet pipe 11 and the etching liquid outlet pipe 13 are made of stainless steel.

[0063] In another specific example, the first etching liquid shell 1, the second etching liquid shell 4 and the third etching liquid shell 7 are made of stainless steel.

[0064] Please refer to Fig. 1 again. In a specific example, the second etching liquid shell 4 and the third etching liquid shell 7 are respectively provided with a second sealing member 34 and a third sealing member 35. Further, the second sealing member 34 and / or the third sealing member 35 are not provided with through holes. Optionally, the second sealing member 34 and the third sealing member 35 can be flanges.

[0065] In one specific example, the particle accelerator host 24 is a commercial linear tandem electrostatic particle accelerator of HVE3MV type produced by High Voltage Engineering, Netherlands, which generates protons with an energy of 6 MeV and a current of 50 μA. The corrosion liquid is a lead-bismuth corrosion liquid, which can be melted from a commercial lead-bismuth eutectic (LBE) alloy. The lead-bismuth eutectic (LBE) alloy has a melting point of about 125 °C and contains 44.5 wt% Pb and 55.5 wt% Bi. The transmission film is a commercial polyimide film with a thickness of 5 μm. The sample to be tested is a commercial 12Cr ferritic / martensitic steel (F / M steel). The sample to be tested has a diameter of 3 mm to 10 mm and a thickness of 20 μm to 200 μm.

[0066] The present application also provides a testing method for the coupling effect of particle irradiation and high-temperature liquid corrosion. The testing method uses the testing device described above, and the testing method includes the following steps: installing the sample to be tested 29 in the inner cavity of the first corrosion liquid shell 1, and adding the corrosion liquid 30 in the first corrosion liquid shell 1; heating the first corrosion liquid shell 1 by the first heating member 2; purging the purging area by the purging member; generating a particle flow by the accelerator host 24; and the particle flow is introduced through the beam pipeline 25, sequentially passes through the transmission film 26 and the purging area, and irradiates the sample to be tested 29 with particles.

[0067] In one specific example, the testing method includes the following steps: installing the sample to be tested 29 on the sample installation position on the first sealing member 23, adding the corrosion liquid 30 in the first corrosion liquid shell 1, and sealing the first corrosion liquid shell 1 by the first sealing member 23; heating the first corrosion liquid shell 1 by the first heating member 2; forming a helium purging area between the through hole and the outlet of the beam pipeline 25 by the helium purging member; generating a particle flow by the accelerator host 24; introducing the particle flow through the beam pipeline 25, and making the particle flow sequentially pass through the transmission film 26, the helium purging area, and the through hole, and then irradiating the sample to be tested 29 with particles.

[0068] In one specific example, when the sample to be tested 29 is installed on the sample installation position on the first sealing member 23, the sample to be tested 29 completely covers the through hole on the first sealing member 23 to improve the sealing performance. Specifically, the sample to be tested 29 can be installed on the first sealing member 23 by welding.

[0069] In one specific example, the preparation of the sample 29 to be tested includes the following steps: according to the particle energy generated by the accelerator host, the theoretical thickness of the sample to be tested is obtained by using the simulation calculation method of the SRIM commercial software, and the sample 29 to be tested is prepared with the theoretical thickness as the target. It can be understood that when the sample 29 to be tested is prepared with the theoretical thickness as the target, the experimental methods such as wire cutting, sandpaper polishing, and vibration polishing can be used to prepare a circular sheet sample with a smooth surface. The diameter of the sample to be tested is 3mm-10mm, and the thickness is 20μm-200μm.

[0070] For example, the theoretical thickness of the 12Cr-F / M steel sample to be tested is calculated by using the SRIM 2011 commercial software, and the sample 29 to be tested is prepared with the theoretical thickness as the target. Further, the theoretical thickness value of the 12Cr-F / M steel sample to be tested is calculated by using the SRIM 2011 commercial software, and the value is about 50μm. Accordingly, the surface of the circular sheet sample with a smooth surface and a diameter of 10mm is prepared by using the methods of wire cutting, 500-3000# sandpaper polishing, and full-automatic vibration polishing in sequence, and the average thickness value is measured by a scanning electron microscope (SEM) to be 50μm (error≤5%).

[0071] In one specific example, in the test method, the oxygen content of the corrosion liquid 30 in the first corrosion liquid shell 1 is controlled to be 10 -8 -10 -4 wt%. For example, the oxygen content of the corrosion liquid 30 in the first corrosion liquid shell 1 is controlled to be 1±0.2×10 -7 wt%. The temperature of the corrosion liquid 30 in the first corrosion liquid shell 1 is controlled to be 100℃-600℃. For example, the temperature of the corrosion liquid 30 in the first corrosion liquid shell 1 is controlled to be 350℃.

[0072] Further, the test method includes the following steps:

[0073] The sample 29 to be tested is installed on the sample installation position on the first sealing member 23, and the first corrosion liquid shell 1 is sealed by the first sealing member 23;

[0074] The alloy material corresponding to the corrosion liquid is placed in the second corrosion liquid shell 4;

[0075] The vacuum degree in the second corrosion liquid shell 4 is less than 1×10 - 4 Pa by using the air pump 10, and the air pump 10 is stopped;

[0076] The second corrosion liquid shell 4 is heated by the second heating member 5, the alloy is melted, the temperature of the corrosion liquid is 350℃, and the liquid level of the corrosion liquid 30 in the second corrosion liquid shell 4 is detected by the liquid level detector 17;

[0077] The protective gas supply 9 supplies protective gas to the second etching liquid tank 4; the oxygen content of the etching liquid in the second etching liquid tank 4 is 1±0.2×10 -7 wt% and the protective gas supply 9 stops supplying gas;

[0078] The etching liquid in the second etching liquid tank 4 is transferred to the first etching liquid tank 1 through the etching liquid inlet pipeline 11;

[0079] The first etching liquid tank 1 is heated by the first heating device 2 to keep the temperature of the etching liquid at 350℃; a helium purge area is formed between the through hole and the outlet of the beam pipeline 25 by the helium purge device; the particle flow is generated by the accelerator main machine 24; the particle flow is introduced by the beam pipeline 25 and sequentially passes through the transmission film 26, the helium purge area and the through hole, thereby performing particle irradiation on the sample to be tested 29.

[0080] In a specific example, when the first oxygen detection device 21 detects that the oxygen content of the etching liquid 30 in the first etching liquid tank 1 is not within the range of 1±0.2×10 -7 wt%, the etching liquid 30 in the first etching liquid tank 1 is replaced. The replacement method includes: transferring the etching liquid 30 in the first etching liquid tank 1 into the third etching liquid tank 7 through the etching liquid outlet pipeline 13. Optionally, the third etching liquid tank 7 can be kept warm by the third heat preservation layer 8 to prevent rapid cooling of the high-temperature liquid. When the etching liquid 30 in the first etching liquid tank 1 is transferred into the third etching liquid tank 7, the etching liquid in the second etching liquid tank 4 is transferred to the first etching liquid tank 1 through the etching liquid inlet pipeline 11, and the oxygen content of the etching liquid 30 in the first etching liquid tank 1 is detected by the first oxygen detection device 21. When the oxygen content enters the range of 1±0.2×10 -7 wt%, it indicates that the replacement is completed. When the replacement is completed, the inlet valve 12 and the outlet valve 14 are closed.

[0081] After the test of the sample 29 is completed, the accelerator host 24 and the helium gas cylinder 27 are first closed. Then the protective gas is filled into the second corrosion liquid shell 4 through the protective gas supply 9. Then the liquid inlet valve 12 and the liquid outlet valve 14 are opened, so that the corrosion liquid 30 in the first corrosion liquid shell 1 is transferred to the third corrosion liquid shell 7. The liquid level of the corrosion liquid 30 in the third corrosion liquid shell 7 is detected by the liquid level detector 20. When the liquid level is constant, it indicates that the corrosion liquid 30 in the first corrosion liquid shell 1 has been emptied. Next, the protective gas supply 9, the liquid inlet liquid level detector 17, the second temperature measuring device 18, the second oxygen measuring device 19, the first oxygen measuring device 21, the first temperature measuring device 22, the first heating device 2, the second heating device 5, the liquid inlet valve 12 and the liquid outlet valve 14 are sequentially closed. Finally, when the temperature of the first corrosion liquid shell 1 decreases to room temperature, the sample on the first sealing member 23 is removed. The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0082] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims, and the description and drawings can be used to interpret the content of the claims.

Claims

1. A device for testing the coupling effect of particle irradiation and high-temperature liquid corrosion, characterized in that, The particle accelerator, the first corrosion liquid shell, the first heating element, the helium gas blowing element, and the first sealing element are included. The particle accelerator includes an accelerator main machine, a beam pipeline connected to the accelerator main machine, and a transmission film arranged at an outlet end of the beam pipeline; the outlet end of the beam pipeline is arranged opposite to the first corrosion liquid shell and a blowing area is formed between the outlet end of the beam pipeline and the first corrosion liquid shell; the helium gas blowing element is used for blowing the blowing area; the helium gas blowing element includes a helium gas cylinder, a blowing pipeline, and a blowing machine; two ends of the blowing pipeline are connected to the helium gas cylinder and the blowing machine respectively. The beam pipeline is used for guiding a particle flow generated by the accelerator main machine to pass through the transmission film and target and irradiate a sample to be tested in a cavity of the first corrosion liquid shell. The first heating element is connected to the first corrosion liquid shell for heating the first corrosion liquid shell. The first sealing element is connected to the first corrosion liquid shell, a through hole is arranged on the first sealing element for the particle flow to pass through, and a sample mounting position is arranged on a side of the first sealing element facing the cavity of the first corrosion liquid shell, the sample mounting position at least partially surrounds an outer edge of the through hole. A distance between the transmission film and the first sealing element is 0.8mm-1.5mm. A diameter of the through hole is 1mm-3mm. The transmission film is a polyimide film, and a thickness of the transmission film is 5μm-50μm.

2. The test apparatus for particle irradiation and high temperature liquid corrosion coupling effects according to claim 1, wherein, The particle generated by the accelerator main machine is a proton.

3. The test apparatus for particle irradiation and high temperature liquid corrosion coupling effects according to claim 1, wherein, The first heating element is wrapped outside the first corrosion liquid shell.

4. The test apparatus for particle irradiation and high temperature liquid corrosion coupling effects according to claim 1, wherein, The transmission film completely covers the outlet of the beam pipeline.

5. The test apparatus for particle irradiation and high temperature liquid corrosion coupling effects according to claim 1, wherein, A first oxygen measuring element and a first temperature measuring element are further included; the first oxygen measuring element is connected to the first corrosion liquid shell for detecting an oxygen content of corrosion liquid inside the first corrosion liquid shell; and the first temperature measuring element is connected to the first corrosion liquid shell for detecting a temperature of the corrosion liquid inside the first corrosion liquid shell.

6. The device for testing the coupled effects of particle irradiation and high-temperature liquid corrosion according to any one of claims 1 to 5, characterized in that, A corrosion liquid feeding mechanism is further included, which includes a second corrosion liquid shell, a corrosion liquid feeding pipeline, and a second heating element; the second heating element is connected to the second corrosion liquid shell for heating the second corrosion liquid shell; and two ends of the corrosion liquid feeding pipeline are connected to the first corrosion liquid shell and the second corrosion liquid shell respectively for transferring corrosion liquid in the second corrosion liquid shell to the first corrosion liquid shell.

7. The test apparatus for particle irradiation and high temperature liquid corrosion coupling effects according to claim 6, wherein, The corrosion liquid feeding mechanism further includes a second temperature measuring element and a second oxygen measuring element; the second temperature measuring element is connected to the second corrosion liquid shell for detecting a temperature of corrosion liquid inside the second corrosion liquid shell; and the second oxygen measuring element is connected to the second corrosion liquid shell for detecting an oxygen content of the corrosion liquid inside the second corrosion liquid shell. The corrosion liquid feeding mechanism further includes a gas suction pump connected to the second corrosion liquid shell for suction of the second corrosion liquid shell; and / or, 8. The test apparatus for particle irradiation and high temperature liquid corrosion coupling effects according to claim 6, wherein, ​ The corrosion liquid inlet mechanism further comprises a protective gas supply connected to the second corrosion liquid shell for supplying protective gas to the second corrosion liquid shell.

9. The test apparatus for particle irradiation and high temperature liquid corrosion coupling effects according to claim 6, wherein, The corrosion liquid outlet mechanism further comprises a third corrosion liquid shell and a corrosion liquid outlet pipe, two ends of the corrosion liquid outlet pipe being connected to the first corrosion liquid shell and the third corrosion liquid shell respectively for transferring the corrosion liquid in the first corrosion liquid shell to the third corrosion liquid shell.

10. A method for testing the coupling effect of particle irradiation and high-temperature liquid corrosion, characterized in that, The test method comprises the following steps by using the test device according to any one of claims 1-9: installing the sample to be tested in the inner cavity of the first corrosion liquid shell, and adding corrosion liquid in the first corrosion liquid shell; heating the first corrosion liquid shell by the first heating element; purging the purging area by the purging element; generating a particle flow by an accelerator main machine, the particle flow passing through the beam pipe, the transmission film and the purging area in sequence, and irradiating the sample to be tested by the particle flow.

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