Irradiation sample loading device

Abstract

Embodiments of the present application relate to the field of nuclear reactor testing, and in particular to an irradiation sample loading device for placing a plurality of irradiation samples in an irradiation test device for irradiation testing, which comprises a plurality of sample containers, a positioning support part and a mounting part. The sample containers are formed with accommodation cavities in which the plurality of irradiation samples are arranged, and the accommodation cavities are arranged to be able to flow in coolant to cool the irradiation samples; the positioning support part is arranged to support the plurality of sample containers and position the plurality of sample containers; the mounting part is arranged to be connected with the positioning support part, for mounting the plurality of sample containers to the irradiation test device; wherein the sample containers are arranged to be able to adjust the temperature and coolant flow in the accommodation cavities, so that the irradiation samples arranged in the accommodation cavities of different sample containers can be subjected to irradiation testing at different temperatures and coolant flows. The irradiation sample loading device provided by the embodiments of the present application can simplify the test operation and improve the test efficiency.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of nuclear reactor testing, and in particular, to an irradiation sample loading device. BACKGROUND

[0002] The statements herein are merely provided to give a basic understanding of the application, and are not necessarily intended to constitute the prior art.

[0003] The materials in the reactor will change in performance due to the irradiation from the reactor core during service, which will affect the safe and stable operation of the reactor, so it is necessary to study the performance change of the materials after irradiation.

[0004] In order to study the performance change of the materials after irradiation, the irradiation samples made of materials are usually placed in an irradiation test device, and then the irradiation test device is placed in the reactor for irradiation test to study the performance change of the materials after irradiation. However, since a single irradiation test can only be carried out at a single coolant temperature and a single coolant flow rate, there is a problem of low irradiation test efficiency. SUMMARY

[0005] A brief summary of the application is given in the following to provide a basic understanding of some aspects of the application. It should be understood that this summary is not an exhaustive overview of the application. It is not intended to identify key or important parts of the application, nor is it intended to limit the scope of the application. Its purpose is merely to give some concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] To solve the above problems, embodiments of the present application provide an irradiation sample loading device for placing a plurality of irradiation samples in an irradiation test device for irradiation test, which can include a plurality of sample containers, a positioning support part, and a mounting part. The sample container is formed with a containing cavity, a plurality of irradiation samples are arranged in the containing cavity, and the containing cavity is arranged to be able to flow in coolant to cool the irradiation samples; the positioning support part is arranged to support the plurality of sample containers and position the plurality of sample containers; the mounting part is arranged to be connected with the positioning support part, for mounting the plurality of sample containers to the irradiation test device; wherein the sample container is arranged to be able to adjust the temperature and coolant flow rate in the containing cavity, so that the irradiation samples arranged in the containing cavities of different sample containers can be subjected to irradiation test at different temperatures and coolant flow rates.

[0007] The irradiation sample loading device provided by the embodiments of the present application can adjust the temperature and coolant flow rate in the containing cavity, so that the irradiation samples can be subjected to irradiation test at different temperatures and coolant flow rates at the same time, thereby simplifying the test operation and improving the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0008] Other objects and advantages of the present application will become apparent and help to understand the present application from the following description of the embodiments of the present application with reference to the accompanying drawings.

[0009] Figure 1 is a structural schematic view of an irradiation sample loading device provided by an embodiment of the present application.

[0010] Figure 2 is a sectional view of a sample container of an irradiation sample loading device provided by an embodiment of the present application.

[0011] Figure 3 is a structural schematic view of an axial positioning support of an irradiation sample loading device provided by an embodiment of the present application.

[0012] Figure 4 is a structural schematic view of a radial positioning support of an irradiation sample loading device provided by an embodiment of the present application.

[0013] Explanation of Reference Signs:

[0014] 100, irradiation sample loading device;

[0015] 10, sample container; 11, inner shell; 12, outer shell; 120, cooling channel; 13, gas filling line; 14, inlet connecting pipe; 15, coolant line;

[0016] 101, accommodating cavity; 102, temperature adjusting cavity; 103, gas inlet; 104, coolant inlet; 105, coolant outlet; 106, sample mounting portion; 107, inlet through hole;

[0017] 20, positioning support portion; 21, axial positioning support; 211, mounting matching portion; 212, cooling through hole; 213, mounting hole; 22, radial positioning support; 221, radial positioning support portion; 222, support connecting portion; 223, fixed connecting portion; 23, fixing member;

[0018] 30, mounting portion; 31, first column member; 32, second column member; 40, gauge tube member.

[0019] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are merely intended to show the illustrative nature of the present application. DETAILED DESCRIPTION

[0020] Exemplary embodiments of this application will be described below with reference to the accompanying drawings. For clarity and brevity, not all features of actual implementations are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such actual embodiment to achieve the developer's specific goals, such as complying with constraints related to the system and business, and these constraints may vary depending on the implementation. Furthermore, it should be understood that while development work can be very complex and time-consuming, such development work is merely a routine task for those skilled in the art who benefit from the content of this application.

[0021] It should also be noted that, in order to avoid obscuring this application with unnecessary details, only the equipment structure and / or processing steps closely related to the solution according to this application are shown in the accompanying drawings, while other details that are not closely related to this application are omitted.

[0022] To improve the efficiency of irradiation testing, multiple irradiated samples are typically placed in an irradiation sample loading device, which is then placed in the irradiation testing apparatus for testing. In related technologies, the irradiation sample loading device uses a single irradiation sample container to hold all irradiated samples, and all samples undergo irradiation testing at the same temperature and coolant flow rate. However, to study the performance of irradiated samples at different temperatures and coolant flow rates, multiple tests are required, which is complex, time-consuming, and inefficient.

[0023] To address at least one aspect of the aforementioned technical problems, embodiments of this application provide an irradiation sample loading device.

[0024] like Figure 1 As shown, Figure 1 The diagram shows a schematic of the structure of an irradiation sample loading device 100 provided in an embodiment of this application, which is used to place multiple irradiation samples in an irradiation test device for irradiation testing.

[0025] The irradiation sample loading device 100 provided in the embodiments of this application may include a plurality of sample containers 10, a positioning support 20, and a mounting part 30. Each sample container 10 has a receiving cavity 101 in which a plurality of irradiated samples are disposed. The receiving cavity 101 is configured to allow coolant to flow in to cool the irradiated samples. The positioning support 20 is configured to support the plurality of sample containers 10 and position them. The mounting part 30 is configured to connect to the positioning support 20 for mounting the plurality of sample containers 10 to an irradiation testing apparatus. The sample containers 10 are configured to adjust the temperature and coolant flow rate within the receiving cavity 101, so that irradiated samples disposed in the receiving cavities 101 of different sample containers 10 can undergo irradiation testing at different temperatures and coolant flow rates.

[0026] The irradiation sample loading device 100 provided in the embodiments of this application can adjust the temperature and coolant flow rate in the receiving cavity 101, so that the irradiation sample can be irradiated at different temperatures and coolant flow rates at the same time, thereby simplifying the test operation and improving the test efficiency.

[0027] In some embodiments, the coolant may be liquid metal.

[0028] In some embodiments, during an irradiation experiment, one or more sample containers 10 may be removed individually for testing.

[0029] like Figure 2 As shown, Figure 2 This diagram shows a cross-sectional view of the sample container 10 of the irradiation sample loading device 100 provided in an embodiment of this application. In some embodiments, each sample container 10 may include an inner shell 11 and an outer shell 12. The inner shell 11 is configured to form a receiving cavity 101; the outer shell 12 is disposed outside the inner shell 11, and a temperature regulating cavity 102 is formed between the inner shell 11 and the outer shell 12 for regulating the temperature within the receiving cavity 101; wherein, each sample container 10's receiving cavity 101 can hold one irradiated sample. In such embodiments, the temperature within the receiving cavity 101 of each sample container 10 can be regulated by the temperature regulating cavity 102, so that the receiving cavities 101 of different sample containers 10 are at different temperatures, thereby allowing irradiated samples located in the receiving cavities 101 of different sample containers 10 to be tested at different temperatures, which is beneficial for studying the performance of irradiated samples at different temperatures.

[0030] See Figure 2 In some embodiments, each sample container 10 further includes an inflation conduit 13 configured to be in fluid communication with a temperature regulating chamber 102, for filling the temperature regulating chamber 102 with a mixed gas. By adjusting the injected mixed gas, the temperature inside the receiving chamber 101 can be regulated. In such embodiments, the thermal conductivity of the temperature regulating chamber 102 can be changed by adjusting the injected mixed gas, thereby changing the amount of heat transfer inside the receiving chamber 101, and thus regulating the temperature inside the receiving chamber 101.

[0031] In some embodiments, the mixed gas introduced into the temperature regulating cavity 102 may be a mixture of He and Ar. In some embodiments, the thermal conductivity of the temperature regulating cavity 102 can be changed by adjusting the volume fraction of the two gases in the He and Ar mixture and the gas pressure of the mixture.

[0032] See Figure 2 In some embodiments, the outer casing 12 has an air inlet 103, and the inflation pipe 13 is fixedly connected to the periphery of the air inlet 103.

[0033] See Figure 2 In some embodiments, each sample container 10 has a coolant inlet 104 and a coolant outlet 105, and the opening degree of both the coolant inlet 104 and the coolant outlet 105 of each sample container 10 is adjustable to adjust the coolant flow rate within each sample container 10. In such embodiments, by adjusting the coolant flow rate within each sample container 10, irradiated samples in different sample containers 10 can be subjected to irradiation tests under different coolant flow rates, which is beneficial for studying the performance of irradiated samples under different coolant flow rates.

[0034] See Figure 2 In some embodiments, the sidewalls of the inner shell 11 and the outer shell 12 are respectively formed with the same inlet through-hole 107 at the same axial height. In some embodiments, each sample container 10 may further include an inlet connecting pipe 14 disposed in the temperature regulating cavity 102, one end of the inlet connecting pipe 14 being fixedly connected to the periphery of the inlet through-hole 107 of the inner shell 11, and the other end being fixedly connected to the periphery of the inlet through-hole 107 of the outer shell 12; the inlet connecting pipe 14, the inlet through-hole 107 of the inner shell 11, and the inlet through-hole 107 of the outer shell 12 together form a coolant inlet 104.

[0035] See Figure 2 In some embodiments, a coolant outlet 105 and a cooling channel 120 are formed on the top of the outer casing 12. In some embodiments, each sample container 10 further includes a coolant conduit 15 disposed in the cooling channel 120 of the outer casing 12. One end of the coolant conduit 15 communicates with the receiving cavity 101, and the other end communicates with the coolant outlet 105, so that the coolant in the receiving cavity 101 can flow out of the sample container 10. In some embodiments, the coolant conduit 15 is fixedly connected to the periphery of the coolant outlet 105.

[0036] Figure 3 This diagram illustrates the structure of the axial positioning support 21 of the irradiation sample loading device 100 provided in an embodiment of this application. Figure 4 This diagram illustrates the structure of the radial positioning support 22 of the irradiation sample loading device 100 provided in an embodiment of this application. Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, the positioning support 20 may include a plurality of axial positioning supports 21, a plurality of radial positioning supports 22, and a fixing member 23. The plurality of axial positioning supports 21 provide axial positioning and axial support for a plurality of sample containers 10, with each sample container 10 disposed between two axial positioning supports 21. The plurality of radial positioning supports 22 provide radial positioning and radial support for a plurality of sample containers 10, with each radial positioning support 22 disposed between two axial positioning supports 21 and at an axial midpoint height of each sample container 10. The fixing member 23 is used to fix the plurality of axial positioning supports 21 and the plurality of radial positioning supports 22. The plurality of axial positioning supports 21 and the plurality of radial positioning supports 22 are fixedly connected to the fixing member 23, and the plurality of sample containers 10 are respectively located at different axial heights of the fixing member 23, so as to be positioned and supported by the axial positioning supports 21 and the radial positioning supports 22 disposed at corresponding axial heights. In this embodiment, the axial positioning support 21 and the radial positioning support 22 are used to position the multiple sample containers 10, which facilitates the installation of the multiple sample containers 10; at the same time, by supporting the multiple sample containers 10, the displacement of the sample containers 10 can be prevented.

[0037] See Figure 3 In some embodiments, the axial positioning support 21 has a mounting hole 213, through which the axial positioning support 21 is sleeved onto the fixing member 23. In some embodiments, the axial positioning support 21 and the radial positioning support 22 are fixedly connected to the fixing member 23 by welding.

[0038] The fastener 23 is, for example, a long support tube with a regular hexagonal cross-section. The radial positioning support 22 is, for example, a spring support ring made of 316H stainless steel.

[0039] See Figure 1 In some embodiments, multiple sample containers 10 are evenly distributed at different axial heights of the fixing member 23. Multiple sample containers 10 are fixed at each axial height of the fixing member 23. Multiple sample containers 10 located at the same axial height share the same axial support and radial support. For example, the number of sample containers 10 can be 48. The 48 sample containers 10 are evenly distributed at 8 axial heights of the fixing member 23, with 6 sample containers 10 evenly distributed at each axial height. The upper and lower ends of each sample container 10 are positioned and supported by two axial positioning supports 21, and each sample container 10 is positioned and supported by a radial positioning support 22 located at its axial midpoint height.

[0040] In some embodiments, the axial height of the plurality of sample containers 10 may cover the height of the bottom of the core, the active section of the core, and the top of the core, in order to study the performance of the irradiated sample at different locations within the reactor.

[0041] In some embodiments, to facilitate the influence on the irradiation performance of irradiated samples, the irradiation testing apparatus is equipped with measuring instruments required for the irradiation test. Correspondingly, the irradiation testing apparatus also includes measuring instrument cables connected to the measuring instruments required for the irradiation test. In some embodiments, the measuring instrument cables connected to the measuring instruments required for the irradiation test can be housed within the fixing member 23 and extend into the irradiation testing apparatus. In such embodiments, the fixing member 23 can separate the measuring instrument cables from the liquid metal serving as a coolant, preventing the measuring instrument cables from contacting the coolant, thereby improving the reliability and service life of the measuring instrument cables, and also facilitating maintenance of the measuring instrument cables.

[0042] In some embodiments, the inflation line 13 is connected to an external gas supply line to allow the mixed gas to enter the temperature regulating chamber 102 of each sample container 10, thus achieving independent gas intake for each sample container 10's temperature regulating chamber 102. Accordingly, the number of external gas supply lines is equal to the number of sample containers 10 to achieve independent gas intake. In some embodiments, the external gas supply line may also be disposed within the fixing member 23, which has an air inlet hole. The inflation line 13 can enter the fixing member 23 through the air inlet hole and connect to the gas supply line.

[0043] See Figure 2 and Figure 3 In some embodiments, each sample container 10 has two sample mounting portions 106 formed on its sidewall, and each axial positioning support 21 has a mounting mating portion 211 formed on its periphery, which conforms to the sample mounting portions 106. The two sample mounting portions 106 of each sample container 10 can connect with the mounting mating portions 211 of the two axial positioning supports 21, thereby positioning each sample container 10 between the two axial positioning supports 21. In such embodiments, by positioning each sample container 10 between the two axial positioning supports 21, axial positioning of each sample container 10 can be achieved, and axial support can be provided for each sample container 10, preventing each sample container 10 from falling off due to flow-induced vibration forces. Furthermore, it also facilitates the thermal expansion of each sample container 10 in the axial and radial directions.

[0044] See Figure 2 In some embodiments, two sample mounting portions 106 are formed on the inner shell 11 and the outer shell 12, respectively.

[0045] See Figure 2 and Figure 3In some embodiments, the sample mounting portion 106 is a groove, and the mounting mating portion 211 is a notch. The radius of the notch is larger than the radius of the groove, and the radius of the notch is smaller than the outer diameter of the sample container 10. In such embodiments, the radius of the notch is larger than the radius of the groove, which facilitates the sample mounting portion 106 entering the mounting mating portion 211 to achieve the fit between the sample mounting portion 106 and the mounting mating portion 211; at the same time, the radius of the notch is smaller than the outer diameter of the sample container 10, making it less likely for the sample mounting portion 106 to detach from the mounting mating portion 211.

[0046] In some embodiments, the irradiation test apparatus may include a test outer shell and a test inner shell disposed inside the test outer shell, and a sample loading device is used to place multiple irradiated samples in the test inner shell of the irradiation test apparatus, the test inner shell containing a coolant.

[0047] In some embodiments, the irradiation testing apparatus further includes a drive unit disposed within the test housing for driving the flow of coolant within the test inner housing. See also Figure 3 Each axial positioning support 21 has multiple cooling through holes 212. The driving unit can drive the coolant in the test inner shell to flow through the multiple cooling through holes 212 to agitate and homogenize the coolant flow field in the test inner shell. The coolant flowing through the multiple cooling through holes 212 flows into each sample container 10. In this embodiment, by agitating and homogenizing the coolant flow field in the test inner shell through the cooling through holes 212, it can be ensured that the coolant flowing into the receiving cavity 101 of different sample containers 10 has only a different flow rate, while other properties (such as temperature) are the same. This is beneficial for accurately studying the performance of irradiated samples under different coolant flow rates.

[0048] See Figure 4 In some embodiments, each radial positioning support 22 may include multiple radial positioning support portions 221, multiple support connecting portions 222, and multiple fixed connecting portions 223. Each radial positioning support portion 221 is disposed at the axial midpoint of each sample container 10, providing radial positioning and radial support for the sample container 10; multiple support connecting portions 222 are disposed between two adjacent radial positioning support portions 221, connecting the two adjacent radial positioning support portions 221; each fixed connecting portion 223 is formed in each radial positioning support portion 221, and the multiple fixed connecting portions 223 are fixedly connected to the fixing member 23. In such embodiments, the cooperation of multiple fixed connecting portions 223, multiple support connecting portions 222, and multiple radial positioning support portions 221 can provide radial support for multiple sample containers 10 disposed at the same axial height; at the same time, it can also limit the displacement of multiple sample containers 10 disposed at the same axial height in the radial direction, achieving radial positioning.

[0049] In some embodiments, the radial positioning support 221 conforms to the outer shell 12 of the sample container 10 to provide radial positioning and support for the sample container 10.

[0050] In some embodiments, the sample mounting portion 106 of the sample container 10 is plugged into and connected to the mounting mating portion 211 of the axial positioning support 21, and the radial positioning support portion 221 of the radial positioning support 22 is plugged into and connected to the sample container 10 to provide radial positioning and radial support for the sample container 10. This configuration enables rapid assembly and disassembly of the sample container 10, allowing for quick assembly and disassembly of a single sample container 10 or all sample containers 10 at a certain height, even during irradiation testing.

[0051] See Figure 1 In some embodiments, the mounting portion 30 may include a first column 31, a second column 32, and an elastic member. The first column 31 is connected to the fixing member 23; the second column 32 is connected to the first column 31 and is used to mount multiple sample containers 10 to the irradiation testing device; the elastic member is disposed on the first column 31 and is used to provide force to the second column 32 to prevent the irradiation sample loading device 100 from tipping over. In such embodiments, the elastic member provides force to the second column 32 to prevent the irradiation sample loading device 100 from tipping over due to external forces such as flow-induced vibration, facilitating the smooth conduct of the irradiation test.

[0052] In some embodiments, the irradiation testing apparatus includes a sample support plate with a sample mounting hole. A second column 32 can be inserted into the sample mounting hole, and an elastic member can abut against the sample support plate to provide a force to the second column 32 to fix it to the sample support plate, thereby ensuring that the irradiation sample loading device 100 will not tip over.

[0053] The elastic element is, for example, a spring. The first pillar 31 and the second pillar 32 are, for example, solid structures that transition from a regular hexagonal prism to a cylinder.

[0054] In some embodiments, the first column 31 and the fastener 23 are connected by welding.

[0055] In some embodiments, the irradiation sample loading device 100 may further include a temperature sensor for measuring the temperature within the receiving cavity 101. In some embodiments, each sample container 10 also has a mounting interface extending through the inner shell 11 and the outer shell 12 for mounting the temperature sensor. The temperature sensor is, for example, a thermocouple.

[0056] See Figure 1In some embodiments, the irradiation sample loading device 100 may further include an instrument fitting 40 connected to the fixture 23. The instrument fitting 40 is configured such that the measuring instrument lines connected to the measuring instruments required for the irradiation test, as well as the external gas supply lines, can enter the fixture 23 through the instrument fitting 40. In such embodiments, the measuring instrument lines can also be isolated from the coolant through the instrument fitting 40, preventing contact between the measuring instrument lines and the coolant, thereby improving the reliability and service life of the measuring instrument lines, and also facilitating maintenance of the measuring instrument lines.

[0057] Instrument fitting 40 is, for example, a hollow tube that transitions from a regular hexagonal prism to a cylinder. In some embodiments, instrument fitting 40 is connected to fastener 23 by welding.

[0058] Regarding the embodiments of this application, it should also be noted that, without conflict, the embodiments of this application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0059] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. The scope of protection of this application shall be determined by the scope of the claims.

Claims

1. An irradiation sample loading device for placing a plurality of irradiation samples in an irradiation test device for an irradiation test, characterized by, The application relates to a sample container for irradiation test, comprising: a plurality of sample containers, each of which is provided with a containing cavity for accommodating a plurality of irradiation samples, and is capable of flowing in coolant to cool the irradiation samples; a positioning support part for supporting the plurality of sample containers and positioning the plurality of sample containers; a mounting part connected with the positioning support part for mounting the plurality of sample containers to an irradiation test device; wherein the sample containers are capable of adjusting the temperature and the flow of the coolant in the containing cavities, so that the irradiation samples arranged in the containing cavities of different sample containers can be subjected to irradiation test at different temperatures and coolant flows; wherein each of the sample containers comprises: an inner shell for forming the containing cavity; an outer shell arranged outside the inner shell, and a temperature adjusting cavity is formed between the inner shell and the outer shell for adjusting the temperature in the containing cavity; and each of the sample containers is capable of arranging one irradiation sample in the containing cavity; each of the sample containers is further provided with a gas charging pipeline in fluid communication with the temperature adjusting cavity for charging mixed gas into the temperature adjusting cavity, and the temperature in the containing cavity is adjusted by adjusting the charged mixed gas; each of the sample containers is provided with a coolant inlet and a coolant outlet, 2. The irradiation sample loading device of claim 1, wherein, the coolant inlet and the coolant outlet of each of the sample containers are capable of adjusting the opening degree to adjust the flow of the coolant in each of the sample containers. The positioning support part comprises: a plurality of axial positioning support parts for providing axial positioning and axial support for the plurality of sample containers, each of the sample containers is arranged between two axial positioning support parts; a plurality of radial positioning support parts for providing radial positioning and radial support for the plurality of sample containers, each of the radial positioning support parts is arranged between two axial positioning support parts and at the axial middle height of each of the sample containers; 3. The irradiation sample loading device of claim 2, wherein, a fixing part for fixing the plurality of axial positioning support parts and the plurality of radial positioning support parts, the plurality of axial positioning support parts and the plurality of radial positioning support parts are fixedly connected with the fixing part, and the plurality of sample containers are respectively arranged at different axial heights of the fixing part to be positioned and supported by the axial positioning support parts and the radial positioning support parts arranged at the corresponding axial heights. The side wall of each of the sample containers is respectively provided with two sample mounting parts; the periphery of each of the axial positioning support parts is provided with a mounting matching part which is matched with the sample mounting part in a profiled mode; 4. The irradiation sample loading device of claim 3, wherein, the two sample mounting parts of each of the sample containers are capable of being connected with the mounting matching parts of the two axial positioning support parts to arrange each of the sample containers between the two axial positioning support parts. The sample mounting part is a groove, the mounting matching part is a notch, the radius of the notch is greater than the radius of the groove, and the radius of the notch is less than the outer diameter of the sample container.

5. The irradiation sample loading device of claim 2, wherein, The irradiation test device comprises a test shell and a test inner shell arranged in the test shell, and the irradiation sample loading device is used for placing a plurality of irradiation samples in the test inner shell of the irradiation test device, and the test inner shell contains a coolant; The irradiation test device further comprises a driving part arranged in the test shell and used for driving the coolant in the test inner shell to flow; Each axial positioning support part is formed with a plurality of cooling through holes, the driving part can drive the coolant in the test inner shell to flow through the plurality of cooling through holes to stir and homogenize the flow field of the coolant in the test inner shell, and the coolant flowing through the plurality of cooling through holes flows into each sample container.

6. The irradiation sample loading device of claim 4, wherein, Each radial positioning support part comprises: a plurality of radial positioning support parts, each radial positioning support part is arranged at the axial middle height of each sample container and is used for providing radial positioning and radial support for the sample container; a plurality of support connecting parts arranged between two adjacent radial positioning support parts and used for connecting the two adjacent radial positioning support parts; a plurality of fixed connecting parts, each fixed connecting part is formed on each radial positioning support part, and the plurality of fixed connecting parts are fixedly connected with the fixing part.

7. The irradiation sample loading device of claim 6, wherein, The sample mounting part of the sample container is plug-in connected with the mounting and fitting part of the axial positioning support part; The radial positioning support part of the radial positioning support part is plug-in connected with the sample container to provide radial positioning and radial support for the sample container.

8. The irradiation sample loading device according to claim 6, wherein The mounting part comprises: a first column part connected with the fixing part; a second column part connected with the first column part and used for mounting the plurality of sample containers to the irradiation test device; a resilient part arranged on the first column part and used for providing an acting force to the second column part to prevent the irradiation sample loading device from toppling over.

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