Analysis detection device and spent fuel reprocessing system

Abstract

The present disclosure relates to an analysis detection device and a spent fuel reprocessing system, wherein the analysis detection device comprises a base, a carrying platform movably arranged on the base along a first direction and a second direction which are perpendicular to each other in a horizontal plane, an accelerator assembly and a radiation source, the radiation source is located on one side of the accelerator assembly along the second direction, the radiation source is used to receive the rays emitted by the accelerator assembly to generate particles, a measurement assembly fixedly installed relative to the base, used to accommodate the detected object to realize a detection mode, a calibration assembly detachably arranged, used to accommodate a calibration object to realize a calibration mode, a shielding body used to shield the radiation source, the measurement assembly and the calibration assembly, and a detector assembly arranged on one side of the shielding body along the first direction, the accelerator assembly, the shielding body and the detector assembly are arranged on the carrying platform, and the carrying platform is configured to drive the shielding body to reach or leave a shielding position along the first direction.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of radiation material analysis and detection, and particularly relates to an analysis and detection device and a spent fuel reprocessing system. BACKGROUND

[0002] In the application of conventional radiation material analysis and detection, a strict distinction is made between calibration mode and working mode (i.e. detection mode). The calibration mode is to use a calibration material with known physical and chemical components obtained through laboratory tests or precise detection as a detected object in a non-working state, for testing the test system and test method and as an important parameter input into the test system. The working mode is to input an unknown component of a test object into the test system for measurement. Therefore, the entire test system has a switching scenario between the calibration mode and the working mode. At this time, the system needs to be shut down, the detected object and the calibration material need to be manually switched, and the downtime is relatively long, requiring a series of complex manual operations.

[0003] This will affect the entire system production link for a long downtime in some industries that generate large quantities of industrial products, where the test system is only the front-end part of the entire system production, and the test system is a key link. In addition, in systems that detect toxic and radioactive detected objects, the switching of the two scenarios will also cause harm to the analysis and operating personnel, such as radiation. SUMMARY

[0004] Embodiments of the present disclosure provide an analysis and detection device and a spent fuel reprocessing system, which can improve the detection and maintenance efficiency of the analysis device.

[0005] The first aspect of the present disclosure provides an analysis and detection device, comprising:

[0006] a base;

[0007] a carrying platform movably arranged on the base along a first direction and a second direction perpendicular to each other in a horizontal plane;

[0008] an accelerator assembly and a radiation source, the radiation source being located on one side of the accelerator assembly along the second direction, the relative position of the radiation source and the accelerator assembly being fixed, and the radiation source being configured to receive the rays emitted by the accelerator assembly to generate particles;

[0009] a measurement assembly fixedly installed relative to the base, configured to accommodate a detected object to realize a detection mode;

[0010] a calibration assembly, which is detachably arranged, configured to accommodate a calibration material to realize a calibration mode;

[0011] a shielding body configured to shield the radiation source, the measurement assembly and the calibration assembly from rays; and

[0012] A detector assembly is arranged on one side of the shielding body in the first direction to receive particles after interacting with the object or the calibration object, so as to analyze the type and content of the object or the calibration object.

[0013] The accelerator assembly, the shielding body and the detector assembly are arranged on the carrying platform, and the carrying platform is configured to drive the shielding body to reach or leave the protection position in the first direction.

[0014] In some embodiments, the carrying platform is configured to move the shielding body to leave the protection position in the first direction when the calibration assembly needs to be disassembled, and move the shielding body to reach the protection position in the first direction in reverse when the calibration mode or the detection mode needs to be entered.

[0015] In some embodiments, the carrying platform is configured to move the positions of the radiation source and the detector assembly to match the measurement assembly or the calibration assembly in the second direction.

[0016] In some embodiments, in the calibration mode, the calibration assembly is fixed relative to the base and is arranged between the measurement assembly and the radiation source in the second direction; and in the detection mode, the calibration assembly is disassembled.

[0017] In some embodiments, in the detection mode, the carrying platform is configured to move the radiation source close to the measurement assembly in the second direction, so that the distance between the radiation source and the measurement assembly is equal to the distance in the calibration mode.

[0018] In some embodiments,

[0019] In the calibration mode, the detector assembly is aligned with the calibration assembly in the second direction; or

[0020] In the detection mode, the detector assembly is aligned with the measurement assembly in the second direction.

[0021] In some embodiments, the calibration assembly comprises a first support for detachable installation and a calibration slot pluggably installed in the first support, the calibration slot being used to accommodate the calibration object.

[0022] In some embodiments, the side of the accelerator assembly is provided with a drift tube extending in the second direction to define the path of the rays, the drift tube extending into the shielding body and the end of the drift tube being fixed with the radiation source.

[0023] In some embodiments, the side of the accelerator assembly is provided with a drift tube extending in the second direction to define the path of the rays, the drift tube extending into the shielding body, the radiation source being fixed to the inner wall of the shielding body and located at the end of the drift tube.

[0024] In some embodiments, the carrying platform comprises a lower platform and an upper platform, and the analysis and detection device further comprises:

[0025] a first driving component arranged between the base and the lower platform and configured to drive the lower platform to move relative to the base along one of the first direction and the second direction; and

[0026] a second driving component arranged between the lower platform and the upper platform and configured to drive the upper platform to move relative to the lower platform along the other of the first direction and the second direction.

[0027] In some embodiments, the area of the lower platform is smaller than the area of the upper platform.

[0028] In some embodiments, the analysis and detection device further comprises two guide rails arranged on the base and spaced apart, and the extension direction of the guide rails is consistent with the movement direction of the lower platform.

[0029] In some embodiments, the accelerator assembly comprises a second bracket fixed to the carrier platform and an accelerator movably mounted to the second bracket along the second direction.

[0030] The second aspect of the present disclosure provides an analysis and detection device for spent fuel reprocessing.

[0031] According to the above technical solution, the carrier platform is designed to have a double-degree-of-freedom movement mode, the accelerator assembly, the radiation source, the shielding body and the detector assembly can be moved synchronously by moving the carrier platform along the first direction or the second direction, the calibration assembly can be disassembled by moving the shielding body along the first direction, and in the calibration mode or the detection mode, the accelerator assembly, the radiation source and the detector assembly are adjusted to positions corresponding to the measurement assembly or the calibration assembly to meet the requirements in the mode, so that the analysis and detection device can be switched between the calibration mode and the detection mode flexibly, the detection and maintenance are facilitated, the downtime calibration time of the analysis and detection device is reduced, and the influence on the efficiency of the entire production system is reduced. Moreover, if the object to be detected is toxic or radioactive, the shielding body can protect the operator from harm in both the calibration mode and the detection mode. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which are included to provide a further understanding of the present disclosure and constitute a part of this application, illustrate the illustrative embodiments of the present disclosure and the description thereof, and do not constitute improper limitations on the present disclosure. In the drawings:

[0033] Figure 1 It is a front view of some embodiments of the analysis and detection device of the present disclosure.

[0034] Figure 2 It is a top view of some embodiments of the analysis and detection device of the present disclosure.

[0035] Figure 3A side view of some embodiments of the analytical detection device of the present disclosure.

[0036] Figure 4 A perspective view of some embodiments of the analytical detection device of the present disclosure.

[0037] Figure 5 A perspective view of some embodiments of the analytical detection device of the present disclosure. Figure 2 A schematic view of the top view of Figure 1 rotated 90°.

[0038] Figure 6 A side view of the first drive member moving in the first direction to move the shield away from the guard position.

[0039] Figure 7 A schematic view of the installation of the calibration assembly.

[0040] Figure 8 A schematic view of the removal of the calibration assembly.

[0041] Figure 9 A top view of the second drive member moving in the second direction to move the radiation source closer to the measurement mechanism.

[0042] Figure 10 A side view of the analytical detection device of the present disclosure. Figure 9

[0043] Figure 11 A top view of the analytical detection device in the detection mode.

[0044] Figure 12 A side view of the accelerator moving outward in the second direction when the accelerator needs to be serviced.

[0045] BRIEF DESCRIPTION OF DRAWINGS

[0046] 1. Base; 11. Guide rail; 12. Vertical plate; 13. Support tube; 14. First hinge lug; 15. Second hinge lug; 2. Load platform; 21. Lower platform; 22. Upper platform; 3. Accelerator assembly; 30. Drift tube; 31. Second bracket; 32. Accelerator; 4. Radiation source; 5. Measurement assembly; 6. Calibration assembly; 61. First bracket; 62. Calibration slot; 7. Shield; 8. Detector assembly; 81. Third bracket; 82. Housing; 83. Detector; 9. First drive member; 10. Second drive member; x. First direction; y. Second direction; z. Third direction. DETAILED DESCRIPTION

[0047] The present disclosure is described in detail below. In the following passages, different aspects of embodiments are defined in more detail. Each aspect so defined can be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature indicated as being preferred or advantageous can be supplemented by any other feature or features indicated as being preferred or advantageous.​

[0048] The terms "first", "second", and the like appearing in the present disclosure are only for the convenience of description, to distinguish different components with the same name, and do not represent a chronological or primary relationship.

[0049] In the description of the present disclosure, the orientations or positional relationships indicated by "up", "down", "top", "bottom", "front", "back", "inner", and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure, and do not indicate or imply that the device must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the present disclosure.

[0050] The present disclosure provides an analytical detection device, having a calibration mode and a detection mode. In some embodiments, as shown in Figures 1 to 12 The analytical measurement device of the present disclosure comprises:

[0051] a base 1;

[0052] a carrying platform 2 movably arranged on the base 1 along a first direction x and a second direction y perpendicular to each other in a horizontal plane;

[0053] an accelerator assembly 3 and a radiation source 4, the radiation source 4 being located on one side of the accelerator assembly 3 along the second direction y, the radiation source 4 being fixed in position relative to the accelerator assembly 3, and being used to receive the rays emitted by the accelerator assembly 3 to generate particles;

[0054] a measurement assembly 5 fixedly installed relative to the base 1, used to accommodate the detected object to realize the detection mode;

[0055] a calibration assembly 6 arranged detachably, used to accommodate the calibration object to realize the calibration mode;

[0056] a shielding body 7 for radiation protection of the radiation source 4, the measurement assembly 5, and the calibration assembly 6; and

[0057] a detector assembly 8 arranged on one side of the shielding body 7 along the first direction x, used to receive the particles after interacting with the detected object or the calibration object, to analyze the type and content of the detected object or the calibration object;

[0058] wherein the accelerator assembly 3, the shielding body 7, and the detector assembly 8 are all arranged on the carrying platform 2, and the carrying platform 2 is configured to drive the shielding body 7 to reach or leave the protection position along the first direction x.

[0059] Specifically, the base 1 can be a flat plate structure, for example, made of steel or other materials. The carrying platform 2 is arranged on the base 1 and has two-way movement freedom in the horizontal plane, and the carrying platform 2 can be driven to move in a manual or automatic manner. The first direction x and the second direction y are both in the horizontal plane and perpendicular to each other, and the third direction z is perpendicular to the first direction x and the second direction y, that is, perpendicular to the horizontal plane.

[0060] As shown in Figure 1 and Figure 2 , the accelerator assembly 3 is used to emit rays, and a drift tube 30 is arranged on one side of the second direction y, the drift tube 30 extends along the second direction y, and the drift tube 30 is used to guide the ray beam. The radiation source 4 is located at the end of the drift tube 30 away from the accelerator assembly 3, and is used to receive the rays emitted by the accelerator assembly 3 to generate particles.

[0061] The measurement assembly 5 or the calibration assembly 6 is located on the side of the radiation source 4 away from the drift tube 30 along the second direction y. For example, the measurement assembly 5 can include a measurement slot for accommodating a detected object, and the calibration assembly 6 can include a calibration slot 62 for accommodating a calibration object. The detected object and the calibration object can be liquids. The measurement assembly 5 and the calibration assembly 6 are both located on the side of the radiation source 4 away from the accelerator assembly 3 along the second direction y, and the measurement assembly 5 and the calibration assembly 6 can be arranged side by side along the second direction y, and their sizes can be the same.

[0062] As shown in Figure 7 , the vertical plate 12 is vertically arranged and fixedly installed on the base 1 in a position that remains unchanged, and the measurement assembly 5 and the calibration assembly 6 are both installed on the vertical plate 12. The calibration slot 62 and the measurement slot can be cuboid slots, the length direction of which is consistent with the first direction x, and they can be made of metal materials. In the calibration mode, the radiation source 4 is located on the side of the calibration slot 62 along the second direction y, and the particles generated by the radiation source 4 can enter the liquid calibration object through the metal side wall of the calibration slot 62, and then be received by the detector assembly 8 to analyze the type and content of the calibration object. Generally, in the calibration mode, the measurement slot does not contain the detected object. Or if the measurement slot has the detected object, in order to prevent affecting the detected object, a shielding layer can be arranged on the outer side of the calibration slot 62 away from the radiation source 4 along the second direction y. In the detection mode, the radiation source 4 is located on the side of the measurement slot along the second direction y, and the particles generated by the radiation source 4 can enter the liquid detected object through the metal side wall of the measurement slot.

[0063] The detector assembly 8 is located on the side of the measurement assembly 5 and the calibration assembly 6 away from the installation position along the first direction x, and is used to receive the neutrons and other particles after the detected object or the calibration object is acted on, so as to analyze the type and content of the detected object or the calibration object according to the number of particles.

[0064] In the calibration mode and the working mode, the shielding body 7 needs to fully enclose the area where the measuring assembly 5, the calibration assembly 6 and the radiation source 4 are located. For example, in the top view Figure 2 In the top view or other views, the rectangular frame at the top of the shielding body 7 is actually not an opening, but is only for the purpose of seeing the internal structure. The rectangular frame at the top of the detector assembly 8 is also only for the purpose of seeing the internal structure of the detector 83. For example, the detector assembly 8 can have a shell that encloses the detector 83, and the shell is made of shielding material. For example, the shielding body 7 can have a cuboid door shape or an arched door shape at the top, and the like, which can form a hollow cavity with the vertical plate 12 described below for accommodating the measuring assembly 5 and the calibration assembly 6.

[0065] For example, in the detection mode (i.e., the working mode), the rays emitted by the accelerator assembly 3 enter the radiation source 4 through the drift tube 30, the radiation source 4 generates particles such as neutrons, which enter the object under test in the measuring assembly 5, and finally the particles after interacting with the object under test or the calibration object are received by the detector assembly 8 to analyze the type and content of the object under test or the calibration object.

[0066] In this embodiment, the carrying platform 2 is designed to have a two-degree-of-freedom movement, and the accelerator assembly 3, the shielding body 7 and the detector assembly 8 are all installed on the carrying platform 2. The carrying platform 2 can be moved in the first direction x or the second direction y, so that the accelerator assembly 3, the radiation source 4, the shielding body 7 and the detector assembly 8 are synchronously moved. The shielding body 7 can be moved in the first direction x to realize the disassembly and assembly of the calibration assembly 6. In the calibration mode or the detection mode, the accelerator assembly 3, the radiation source 4 and the detector assembly 8 can be adjusted to the positions corresponding to the measuring assembly 5 or the calibration assembly 6, respectively, to meet the requirements in the mode. Thus, the analysis and detection device can be flexibly switched between the calibration mode and the detection mode, which facilitates detection and maintenance, reduces the calibration downtime of the analysis and detection device, and thus reduces the impact on the efficiency of the entire production system. Moreover, if the object under test is toxic or radioactive, it can be protected by the shielding body 7 in both the calibration mode and the detection mode, so as to protect the operator from harm.

[0067] In addition, in the calibration mode and the detection mode, the positional relationship between the accelerator assembly 3, the radiation source 4 and the detector assembly 8 does not change, and the measurement reference in the two modes is consistent, which can improve the test accuracy of the object under test.

[0068] In some embodiments, the carrying platform 2 is configured to move the shielding body 7 away from the protection position in the first direction x when the calibration assembly 6 needs to be disassembled, and move the shielding body 7 to the protection position in the first direction x in reverse when the calibration mode or the detection mode is needed.

[0069] For example, in the calibration mode, the accelerator assembly 3, the radiation source 4 and the detector assembly 8 are moved to the positions corresponding to the calibration assembly 6, and the shielding body 7 is moved to the protection position to protect the operator from the radiation. Figure 6As shown, when the calibration assembly 6 needs to be installed, the carrier platform 2 is moved in the first direction x towards the side away from the measurement assembly 5, so that the measurement assembly 5 is completely exposed, i.e. out of the shielding position; as shown in Figure 7 As shown, the calibration assembly 6 can be installed at this time, and then the shielding body 7 can reach the shielding position for calibration; as shown in Figure 8 As shown, after the calibration mode is completed, the calibration assembly 6 can be removed; as shown in Figure 4 As shown, in the calibration state or detection mode, the opening of the shielding body 7 abuts against the stand 12, completely enclosing the positions of the radiation source 4, the measurement assembly 5 and the calibration assembly 6, to shield the rays.

[0070] This embodiment can conveniently dismount and mount the calibration assembly 6 by moving the carrier platform 2 in the first direction x, to switch between the detection mode and the calibration mode, and the shielding body 7 can play a shielding role in both modes to prevent the leakage of radioactive substances.

[0071] In some embodiments, the carrier platform 2 is configured to match the positions of the radiation source 4 and the detector assembly 8 with the measurement assembly 5 or the calibration assembly 6 by moving in the second direction y.

[0072] In which, when entering the detection mode and the calibration mode is needed, the accelerator assembly 3, the radiation source 4 and the detector assembly 8 are also moved in the first direction x to the position when the carrier platform 2 drives the shielding body 7 to move in the first direction x to the shielding position.

[0073] As shown, when entering the calibration mode is needed, the carrier platform 2 is moved in the second direction y to align the detector assembly 8 with the calibration assembly 6 in the second direction y, and correspondingly the radiation source 4 is located on the side of the calibration assembly 6 away from the measurement assembly 5 in the second direction y. Figure 6

[0074] As shown, when entering the detection mode is needed, the carrier platform 2 is moved in the second direction y to align the detector assembly 8 with the measurement assembly 5, and correspondingly the radiation source 4 is located closer to the measurement assembly 5 in the second direction y. Figure 8 Figure 9

[0075] Specifically, from Figure 1 and Figure 2 ​​​As can be seen, the detector assembly 8 comprises a third support 81 fixed on the carrying platform 2, a housing 82 arranged above the third support 81, and a detector 83 arranged in the housing 82. In the calibration mode, the detector 83 is aligned with the calibration assembly 6 in the second direction y, i.e. the detector 83 and the calibration assembly 6 are located on the same straight line which extends along the first direction x. In the detection mode, the detector 83 is aligned with the measurement assembly 5 in the second direction y, i.e. the detector 83 and the measurement assembly 5 are located on the same straight line which extends along the first direction x.

[0076] This embodiment can match the positions of the radiation source 4 and the detector assembly 8 with the measurement assembly 5 or the calibration assembly 6 by moving the carrying platform 2 along the second direction y, so as to flexibly meet the position requirements of the main components in the calibration mode and the detection mode.

[0077] In some embodiments, as shown in Figure 2 in the calibration mode, the calibration assembly 6 is fixed relative to the base 1 and is arranged between the measurement assembly 5 and the radiation source 4 along the second direction y; as shown in Figure 8 in the detection mode, the calibration assembly 6 is removed.

[0078] This embodiment arranges the installation position of the calibration assembly 6 between the measurement assembly 5 and the radiation source 4 along the second direction y, so that in the calibration mode, the radiation source 4 is relatively close to the calibration assembly 6, and the measurement assembly 5 is located on the side away from the radiation source 4; in the detection mode, after the calibration assembly 6 is removed, the radiation source 4 is close to the measurement assembly 5 along the second direction y, so that the object to be detected can be detected, and therefore, the analysis and detection device can be flexibly and conveniently switched between the calibration mode and the detection mode.

[0079] In some embodiments, as shown in Figures 7 to 9 in the detection mode, the carrying platform 2 is configured to move the radiation source 4 close to the measurement assembly 5 along the second direction y, so that the distance between the radiation source 4 and the measurement assembly 5 is equal to the distance between the radiation source 4 and the calibration assembly 6 in the calibration mode.

[0080] As shown in Figure 7 when it is needed to enter the calibration mode, the radiation source 4 is relatively close to the calibration assembly 6. As shown in Figure 8 after the calibration is completed, the calibration assembly 6 is removed, at this time, the radiation source 4 is relatively far away from the measurement assembly 5 along the second direction y. As shown in Figure 9 when it is needed to enter the detection mode, the radiation source 4 is moved along the second direction y towards the measurement assembly 5 until the distance between the radiation source 4 and the measurement assembly 5 along the second direction y is consistent with the distance between the radiation source 4 and the calibration assembly 6 in the calibration mode.

[0081] The embodiment can make the distance of the radiation source 4 relative to the object to be detected or the calibration object consistent in the detection mode and the calibration mode, ensure the same test conditions in the two modes, and improve the detection precision of the object to be detected.

[0082] In some embodiments, as shown in Figure 2 , the calibration assembly 6 includes a first support 61 for detachable installation and a calibration slot 62 that is pluggably installed in the first support 61 and used to accommodate the calibration object.

[0083] Specifically, the analysis and detection device further includes a vertical plate 12 arranged on the side of the base 1 close to the measurement assembly 5 along the first direction x, and the vertical plate 12 can be provided with a hook or a support for hanging or placing the first support 61 on the vertical plate 12, thereby facilitating the overall disassembly of the calibration assembly 6. The calibration slot 62 can be a cuboid slot with the length direction consistent with the first direction x, and the calibration slot 62 is pluggably installed in the first support 61 to facilitate the replacement of the calibration slot 62 accommodating different calibration objects, thereby improving the calibration efficiency. For example, different calibration slots 62 accommodate solutions with different concentrations.

[0084] In some embodiments, the side of the accelerator assembly 3 is provided with a drift tube 30 extending along the second direction y for defining the path of the rays, and the drift tube 30 extends into the shielding body 7 and the end thereof fixes the radiation source 4. This structure facilitates the guarantee of the positional relationship between the radiation source 4 and the drift tube 30, so that the rays in the drift tube 30 reliably enter the radiation source 4 to generate particles, thereby improving the working reliability of the analysis and detection device.

[0085] In some embodiments, as shown in Figure 2 , the side of the accelerator assembly 3 is provided with a drift tube 30 extending along the second direction y for defining the path of the rays, and the drift tube 30 extends into the shielding body 7, and the radiation source 4 is fixed to the inner wall of the shielding body 7 and located at the end of the drift tube 30. The inner wall of the shielding body 7 is provided with a support tube 13, and the radiation source 4 is fixed to the end of the support tube 13, and the drift tube 30 extends into the support tube 13. When the volume or weight of the radiation source 4 is large, this way of fixing the radiation source 4 can improve the reliability of the installation and fixation.

[0086] In some embodiments, as shown in Figure 1 , Figure 3 , and Figure 4 , the carrying platform 2 includes a lower platform 21 and an upper platform 22, and the analysis and detection device further includes:

[0087] a first driving component 9 arranged between the base 1 and the lower platform 21 and used to drive the lower platform 21 to move relative to the base 1 along one of the first direction x and the second direction y; and

[0088] The second driving component 10 is provided between the lower platform 21 and the upper platform 22 , and is used for driving the upper platform 22 to move relative to the lower platform 21 along the other of the first direction x and the second direction y.

[0089] The first driving component 9 and the second driving component 10 are both linear driving components, such as electric push rods, cylinders or hydraulic cylinders, or driving components that convert rotational motion into linear motion.

[0090] For example, in Figure 4 In the embodiment, the first driving component 9 drives the lower platform 21 to move along the first direction x relative to the base 1, and the second driving component 10 drives the upper platform 22 to move along the second direction y relative to the lower platform 21. The first driving component 9 and the second driving component 10 can be connected by an end hinge, with one end of the first driving component 9 being hinged to the base 1 and the other end being connected to the lower platform 21. Figure 3 As shown, the lower platform 21 is provided with a first hinge lug 14 , the upper platform 22 is provided with a second hinge lug 15 , one end of the second driving component 10 is hinged to the first hinge lug 14 , and the other end is hinged to the second hinge lug 15 .

[0091] This embodiment configures the carrier platform 2 as a double-layer platform, which facilitates movement of the carrier platform 2 in two directions, with each direction of movement being independent of the other, making it easier to control. Furthermore, by providing two drive components to drive the two carrier platforms 2 in two directions, the degree of automation of the switching between calibration mode and detection mode of the analysis and detection device can be improved, thereby increasing efficiency and control accuracy and reducing manual intervention.

[0092] In some embodiments, the area of ​​the lower platform 21 is smaller than that of the upper platform 22. Since the upper platform 22 needs to simultaneously mount the accelerator assembly 3, the shield 7, and the detector assembly 8, which requires a larger area, the lower platform 21 is configured to have a smaller area to save material and facilitate the installation of the second driving component 10 between the lower platform 21 and the upper platform 22. The end of the second driving component 10 can be connected to the end of the upper platform 22 or an area near the middle.

[0093] In some embodiments, as Figure 4 As shown, the analysis and detection device further includes two guide rails 11 , which are arranged on the base 1 at intervals, and the extending direction of the guide rails 11 is consistent with the moving direction of the lower platform 21 .

[0094] For example, in Figure 4 In the embodiment, the lower platform 21 moves along the first direction x, and the two guide rails 11 are arranged at intervals along the second direction y, and each guide rail 11 extends along the first direction x.

[0095] The embodiment guides the movement of the lower platform 21 through the arrangement of two guide rails 11, so that the movement of the lower platform 21 is smoother and more stable, and the support stability of the upper platform 22 and the components arranged thereon is improved, and the movement control precision is improved.

[0096] In some embodiments, a guide member such as a guide wheel or a rolling bearing is arranged between the lower platform 21 and the upper platform 22. In order to install and position the guide member, a recess is arranged on the opposite surface of the lower platform 21 or the upper platform 22, and the guide member is accommodated in the recess. This structure can guide the movement of the upper platform 22, and improve the stability of the components on the upper platform 22 during movement.

[0097] In some embodiments, as shown in Figure 12 , the accelerator assembly 3 comprises a second bracket 31 and an accelerator 32. The second bracket 31 is fixed to the bearing platform 2, specifically, the second bracket 31 is fixed to the upper platform 22. The accelerator 32 is movably arranged on the second bracket 31 along the second direction y.

[0098] In this embodiment, the accelerator 32 is movable relative to the second bracket 31 along the second direction y on the basis that the bearing platform 2 drives the accelerator assembly 3 to move along the second direction y. When the accelerator 32 needs to be maintained, the accelerator 32 can be pushed out relative to the second bracket 31 along the second direction y, so that the accelerator can be repaired.

[0099] The specific working principle of the analysis and detection device of the present disclosure will be described below.

[0100] As shown in Figure 6 , before entering the calibration mode, the first driving member 9 is controlled to retract, and the shielding body 7 is driven by the bearing platform 2 to leave the protection position, and the measurement assembly 5 is completely exposed.

[0101] As shown in Figure 7 , the calibration assembly 6 is arranged on the vertical plate 12, and the calibration assembly 6 is located between the radiation source 4 and the measurement assembly 5 along the second direction y. Then, the second driving member 10 is controlled to move along the second direction y by the bearing platform 2, so that the radiation source 4 and the calibration assembly 6 reach a preset distance, and the detector 83 is aligned with the calibration assembly 6. Subsequently, the first driving member 9 is controlled to extend, and the shielding body 7 is driven by the bearing platform 2 to reach the protection position, completely surrounding the measurement assembly 5, the calibration assembly 6 and the radiation source 4. In this way, the calibration mode work can be performed.

[0102] If it is necessary to replace the calibration assembly 6, the above Figure 6 and Figure 7 corresponding processes can be repeated.

[0103] As shown in Figure 8As shown, before entering the detection mode, the first driving component 9 is controlled to retract through the bearing platform 2 to drive the shielding body 7 away from the protection position, and the measurement assembly 5 is completely exposed. And the calibration assembly 6 is removed.

[0104] As shown, the second driving component 10 is controlled to move through the bearing platform 2 to drive the components thereon along the second direction y, so that the radiation source 4 is close to the measurement assembly 5, until the radiation source 4 and the measurement assembly 5 reach the preset distance, and the detector 83 is aligned with the measurement assembly 5. Figure 9 As shown, the first driving component 9 is controlled to extend through the bearing platform 2 to drive the shielding body 7 to the protection position, completely surrounding the measurement assembly 5, the calibration assembly 6 and the radiation source 4. Thus, the detection mode work can be carried out.

[0105] Figure 10 Figure 11 As shown, the first driving component 9 is controlled to extend through the bearing platform 2 to drive the shielding body 7 to the protection position, completely surrounding the measurement assembly 5, the calibration assembly 6 and the radiation source 4. Thus, the detection mode work can be carried out.

[0106] Secondly, the present disclosure provides a spent fuel reprocessing system comprising the analysis detection device of the above-mentioned embodiments. Wherein, the spent fuel refers to the nuclear fuel discharged from the reactor after being "burned" to a certain extent. The spent fuel reprocessing system refers to the treatment of spent fuel used in the reactor, the separation of useful elements (such as uranium and plutonium) from fission products and other substances, for the manufacture of new nuclear fuel elements, to realize the partial recycling of nuclear fuel, or to extract plutonium for nuclear weapon manufacturing.

[0107] The analysis detection device of the present disclosure can be used to detect specific components in spent fuel. Since the analysis detection device can be flexibly switched between calibration mode and detection mode, it is convenient for detection and maintenance, so as to reduce the influence of long-term shutdown calibration of the analysis detection device on the overall working efficiency of the spent fuel reprocessing system. Moreover, since the detected object is toxic or radioactive, it can be protected by the shielding body 7 in both calibration mode and detection mode, to ensure the safety of the operator.

[0108] Finally, the use method of the analysis detection device of the above-mentioned embodiments is described. In some embodiments, it includes:

[0109] In the case of disassembling the calibration assembly 6, the bearing platform 2 is moved along the first direction x to move the shielding body 7 away;

[0110] In the case of entering the calibration mode or the detection mode, the bearing platform 2 is moved along the first direction x to make the shielding body 7 in the radiation protection position;

[0111] In the case of entering the calibration mode or the detection mode, the bearing platform 2 is moved along the second direction y to make the position of the radiation source 4 and the detector assembly 8 match the calibration assembly 6 or the measurement assembly 5.

[0112] ​​The embodiment designs the bearing platform 2 as a double-degree-of-freedom moving mode, which can flexibly switch the analysis and detection device between the calibration mode and the detection mode, facilitate detection and maintenance, and reduce the influence of long-time shutdown of the analysis and detection device on the efficiency of the whole production system.

[0113] Moreover, by moving the bearing platform 2 along the first direction x, the calibration assembly 6 is conveniently disassembled to switch between the detection mode and the calibration mode, and the shielding body 7 can play a protective role to prevent the leakage of radioactive substances to the outside and ensure the safety of the operators when working in the two modes. By moving the bearing platform 2 along the second direction y, the positions of the radiation source 4 and the detector assembly 8 are matched with the measurement assembly 5 or the calibration assembly 6 to flexibly meet the position requirements of the main components in the calibration mode and the detection mode.

[0114] In some embodiments, when it is necessary to enter the calibration mode or the detection mode, the bearing platform 2 is first moved to position along the second direction y and then moved to position along the first direction x. Alternatively, the two steps can also be interchanged.

[0115] Specifically, when it is necessary to enter the calibration mode, the bearing platform 2 is first moved along the second direction y until the detector assembly 8 is aligned with the calibration assembly 6 in the second direction y and the radiation source 4 has a preset distance from the calibration assembly 6 in the second direction y, and then the bearing platform 2 is moved along the first direction x to make the shielding body 7 reach the protective position.

[0116] When it is necessary to enter the detection mode, the bearing platform 2 is first moved along the second direction y until the detector assembly 8 is aligned with the calibration assembly 6 in the second direction y and the radiation source 4 has a preset distance from the calibration assembly 6 in the second direction y, and then the bearing platform 2 is moved along the first direction x to make the shielding body 7 reach the protective position.

[0117] The embodiment first moves the bearing platform 2 to position along the second direction y and then moves to position along the first direction x, which facilitates the observation of whether the detector assembly 8 and the radiation source 4 are adjusted to the correct positions in the case that the shielding body 7 is in the open state, facilitates the correction if there is a deviation in the positions, and moves the shielding body 7 to the protective position along the first direction after confirming that the adjustment is in position.

[0118] In some embodiments, as shown in Figure 12 The accelerator assembly 3 includes a second support 31 and an accelerator 32, the second support 31 is fixed to the bearing platform 2, and the accelerator 32 is movably installed on the second support 31 along the second direction y; the use method further includes:

[0119] When the accelerator 32 needs to be maintained, the accelerator 32 is moved relative to the second support 31 along the second direction y towards the direction away from the shielding body 7.

[0120] The embodiment makes the accelerator 32 movable relative to the second support 31 along the second direction y on the basis that the bearing platform 2 drives the accelerator assembly 3 to move along the second direction y, and in the case that the accelerator 32 needs to be maintained, the accelerator 32 can be pushed outward relative to the second support 31 along the second direction y so as to maintain the accelerator.

[0121] The above describes the embodiments provided by the present disclosure in detail. The principles and implementation manners of the present disclosure are described by applying specific embodiments, and the above embodiment description is only used to help understand the method of the present disclosure and its core idea. It should be noted that, for those skilled in the art, without departing from the principles of the present disclosure, the present disclosure can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present disclosure.

Claims

1. An analysis and detection device, characterized in that: include: Base (1); A carrying platform (2) is movably arranged on the base (1) along a first direction (x) and a second direction (y) perpendicular to each other in a horizontal plane; An accelerator assembly (3) and a radiation source (4), wherein the radiation source (4) is located on one side of the accelerator assembly (3) along the second direction (y), the radiation source (4) and the accelerator assembly (3) are fixed relative to each other, and are used to receive radiation emitted by the accelerator assembly (3) to generate particles; A measuring assembly (5) is fixedly mounted relative to the base (1) and is used to accommodate the object to be inspected to implement a detection mode; A calibration component (6) is detachably provided for accommodating a calibration object to implement a calibration mode; A shielding body (7) for protecting the radiation source (4), the measuring component (5) and the calibration component (6) from radiation; and A detector assembly (8) is provided on one side of the shielding body (7) along the first direction (x), and is used to receive particles after interacting with the object to be detected or the calibration object, so as to analyze the type and content of the object to be detected or the calibration object; The accelerator assembly (3), the shielding body (7) and the detector assembly (8) are all arranged on the carrying platform (2), and the carrying platform (2) is configured to drive the shielding body (7) along the first direction (x) to reach or leave the protection position.

2. The analysis and detection device according to claim 1, characterized in that: The carrying platform (2) is configured to move the shielding body (7) away from the protection position by moving along the first direction (x) when the calibration component (6) needs to be disassembled; and to move the shielding body (7) back along the first direction (x) to the protection position when the calibration mode or the detection mode needs to be entered.

3. The analysis and detection device according to claim 1, characterized in that: The carrying platform (2) is configured to match the positions of the radiation source (4) and the detector assembly (8) with the measurement assembly (5) or the calibration assembly (6) by moving along the second direction (y).

4. The analysis and detection device according to claim 1, characterized in that: In the calibration mode, the calibration component (6) is fixed relative to the base (1) and is installed between the measuring component (5) and the radiation source (4) along the second direction (y); In the detection mode, the calibration component (6) is removed.

5. The analysis and detection device according to claim 4, characterized in that: In the detection mode, the carrying platform (2) is configured to move the radiation source (4) close to the measurement component (5) by moving along the second direction (y), so that the distance between the radiation source (4) and the measurement component (5) is equal to the distance in the calibration mode.

6. The analysis and detection device according to claim 1, characterized in that: In the calibration mode, the detector assembly (8) is aligned with the calibration assembly (6) in the second direction (y); or In the detection mode, the detector assembly (8) is aligned with the measurement assembly (5) in the second direction (y).

7. The analysis and detection device according to claim 1, characterized in that: The calibration component (6) comprises a first bracket (61) and a calibration slot (62), wherein the first bracket (61) is used for detachable installation, and the calibration slot (62) is pluggably installed on the first bracket (61), and the calibration slot (62) is used for accommodating the calibration object.

8. The analysis and detection device according to claim 1, characterized in that: A drift tube (30) extending along the second direction (y) is provided on the side of the accelerator assembly (3) for defining the path of the ray. The drift tube (30) extends into the shielding body (7) and the end portion thereof is fixed to the radiation source (4).

9. The analysis and detection device according to claim 1, characterized in that: A drift tube (30) extending along the second direction (y) is provided on the side of the accelerator assembly (3) for defining the path of the ray, the drift tube (30) extending into the shielding body (7), and the radiation source (4) is fixed to the inner wall of the shielding body (7) and located at the end of the drift tube (30).

10. The analysis and detection device according to any one of claims 1 to 9, characterized in that: The carrying platform (2) comprises a lower platform (21) and an upper platform (22), and the analysis and detection device further comprises: a first driving component (9) disposed between the base (1) and the lower platform (21), for driving the lower platform (21) to move relative to the base (1) along one of the first direction (x) and the second direction (y); and A second driving component (10) is provided between the lower platform (21) and the upper platform (22), and is used to drive the upper platform (22) to move relative to the lower platform (21) along the other of the first direction (x) and the second direction (y).

11. The analysis and detection device according to claim 10, characterized in that: The area of ​​the lower platform (21) is smaller than the area of ​​the upper platform (22).

12. The analysis and detection device according to claim 10, characterized in that: It also includes two guide rails (11), which are arranged on the base (1) at intervals, and the extension direction of the guide rails (11) is consistent with the movement direction of the lower platform (21).

13. The analysis and detection device according to any one of claims 1 to 9, characterized in that: The accelerator assembly (3) comprises: a second bracket (31) and an accelerator (32), wherein the second bracket (31) is fixed to the carrying platform (2), and the accelerator (32) is movably mounted on the second bracket (31) along a second direction (y).

14. A spent fuel reprocessing system, characterized in that: The analytical detection device comprises any one of claims 1 to 13.

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