Transport device and high radioactivity sample analysis line

Abstract

The application discloses a transfer device and a high-radioactivity sample analysis line, and relates to the technical field of nuclear radiation protection, and in particular relates to a transfer device and a high-radioactivity sample analysis line. The transfer device comprises a double-cover sealing assembly, a transfer barrel assembly and a docking assembly. The double-cover sealing assembly comprises a chamber cover, a first connecting assembly connected with the chamber cover, and the first connecting assembly is connected with a first shielding chamber. The transfer barrel assembly comprises a transfer barrel, a second connecting assembly connected with the transfer barrel, and a barrel cover connected with the second connecting assembly, and the transfer barrel is connected with a second shielding chamber. The docking assembly is connected with the second connecting assembly, and the docking assembly is used for driving the second connecting assembly to move towards the first connecting assembly, so as to drive the barrel cover to dock with the chamber cover and drive the barrel cover to be separated from the second connecting assembly. The docking assembly is also used for driving the second connecting assembly to move away from the first connecting assembly, so as to drive the barrel cover to be separated from the chamber cover and drive the barrel cover to dock with the second connecting assembly. A driving mechanism is arranged on the second connecting assembly, and the driving mechanism is used for driving the chamber cover to open and close. The shielding chambers are connected through the transfer device, and quick disassembly and connection between the shielding chambers can be realized.

Description

Technical Field

[0001] This invention belongs to the field of radiochemical analysis laboratory design technology, specifically relating to a transport device and a high-radioactivity sample analysis line. Background Technology

[0002] Nuclear facilities (such as nuclear fuel reprocessing plants and radiochemical testing facilities) generally require sample analysis to provide necessary parameters for process control, product specifications, and environmental emissions. Because the samples are radioactive, open-label analysis must be performed in sealed, thickly bio-shielded chambers to ensure the radiation safety of personnel. For highly radioactive samples (hereinafter referred to as high-level samples), which are highly radioactive and toxic, storage, separation, pretreatment, and analysis are generally carried out in concrete-shielded hot chambers. Nuclear facilities require the analysis of large quantities of diverse samples with varying analytical requirements. A single hot chamber cannot simultaneously meet the demands for easy analysis, convenient maintenance, and high uptime; therefore, multiple analytical hot chambers with different functions are often required to form a hot chamber analysis line. Hot cells often have the following drawbacks: 1. They require thick concrete for shielding, resulting in a large footprint; 2. The connecting channels between hot cells are mostly fixed by welding, making them non-removable and non-movable, and preventing the replacement or upgrading of individual hot cells. Analytical hot cells are often designed in conjunction with analytical instruments, and the rapid pace of innovation in analytical methods and the rapid upgrading of analytical instruments often leads to the incompatibility of the original hot cell interfaces. Therefore, hot cells are increasingly unable to meet the design requirements of analytical laboratories; 3. When hot cells are decommissioned, the entire structure needs to be cut and reassembled, making decommissioning difficult and costly. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art by providing a transfer device and a high radioactivity sample analysis line, wherein the shielded chambers are connected by the transfer device, which can realize the rapid disassembly and connection between the shielded chambers.

[0004] The technical solution adopted to solve the technical problem of the present invention is to provide a transfer device, comprising:

[0005] The double-cover sealing assembly includes: a chamber cover, a first connecting assembly connected to the chamber cover, and the first connecting assembly being connected to a first shielding chamber;

[0006] The transfer bucket assembly includes: a transfer bucket, a second connecting component connected to one end of the transfer bucket, and a bucket lid connected to the second connecting component. The bucket lid is used to cover the transfer bucket, and the other end of the transfer bucket is connected to a second shielding chamber.

[0007] The docking component is connected to the second connecting component. The docking component is used to drive the second connecting component to move toward the first connecting component, so that the bucket lid docks with the chamber lid and the bucket lid disengages from the second connecting component. The docking component is also used to drive the second connecting component to move away from the first connecting component, so that the bucket lid disengages from the chamber lid and the bucket lid docks with the second connecting component.

[0008] A drive mechanism, located on the second connecting component, is used to drive the opening and closing of the chamber cover.

[0009] Preferably, the first connecting assembly includes: a chamber sealing flange, a rotating shaft, a rotating arm, a guide clamping pin, a locking ring, and a locking nut. The chamber sealing flange is connected to the first shielding chamber via the locking nut. The rotating shaft is mounted on the chamber cover, and the rotating arm is connected to the rotating shaft and hinged to the chamber sealing flange. The guide clamping pin is mounted on the chamber cover, and the locking ring is rotatably connected to the chamber sealing flange. The locking ring has an annular groove and is connected to a drive mechanism. The drive mechanism drives the locking ring to rotate forward, causing the guide clamping pin to screw into the annular groove, thereby closing the chamber cover. The drive mechanism also drives the locking ring to rotate in the reverse direction, causing the guide clamping pin to screw out of the annular groove, thereby opening the chamber cover.

[0010] Preferably, the first connecting assembly further includes: an O-ring and a lid sealing ring.

[0011] O-rings are installed on the chamber sealing flange or the first shielding chamber. O-rings are used to seal between the chamber sealing flange and the first shielding chamber.

[0012] The barrel lid sealing ring is installed on the chamber sealing flange or chamber cover, and is used to seal between the chamber sealing flange and the chamber cover.

[0013] Preferably, the second connecting assembly includes: a first barrel flange, a second barrel flange connected to the first barrel flange, the first barrel flange being threadedly connected to the transfer barrel, the second barrel flange being threadedly connected to the transfer barrel, and the first barrel flange being connected to the barrel lid.

[0014] The second connecting assembly also includes a barrel sealing ring, which is disposed between the barrel lid and the first barrel flange, and is used to seal between the barrel lid and the first barrel flange.

[0015] Preferably, the docking assembly includes: a rotating base and a rotating handle connected to the rotating base. The rotating base is disposed on the second barrel flange, and the second barrel flange is rotated by rotating the handle.

[0016] Preferably, the transfer bucket assembly further includes an axial limiting block disposed on the transfer bucket, the axial limiting block being used to axially limit the second connecting assembly.

[0017] Preferably, the transfer container includes: an outer container, a corrugated pipe connected to the outer container, and an inner container connected to the corrugated pipe, with the outer container connected to a second connecting assembly.

[0018] Preferably, the transfer device further includes a channel platform disposed within the transfer barrel. The channel platform includes a channel platform body and handles disposed at both ends of the channel platform body. The channel platform is used to place the transfer material.

[0019] Preferably, the double-lid sealing assembly further includes a third connecting component, through which the lid is locked or unlocked to the chamber lid.

[0020] The third connecting component includes: a barrel lid guide groove and a chamber lid guide flange. The barrel lid guide groove is provided on the barrel lid, and the chamber lid guide flange is provided on the chamber lid. The barrel lid guide groove and the chamber lid guide flange cooperate to lock or unlock.

[0021] Preferably, the transfer container assembly further includes a fourth connecting component, through which the container lid is locked or unlocked to the second connecting component.

[0022] The fourth connecting component includes: a lid guide flange and a flange guide groove. The lid guide flange is disposed on the lid, and the flange guide groove is disposed on the second connecting component. The lid guide flange and the flange guide groove cooperate to lock or unlock.

[0023] Preferably, the transfer device further includes: a fifth connecting component, through which the first connecting component is locked or unlocked to the second connecting component.

[0024] The fifth connecting component includes: a barrel flange guide flange and a chamber sealing flange guide groove. The chamber sealing flange guide groove is disposed on the first connecting component, and the barrel flange guide flange is disposed on the second connecting component. The barrel flange guide flange and the chamber sealing flange guide groove cooperate to lock or unlock.

[0025] The present invention also provides a high-radioactivity sample analysis line, comprising: a clean item transfer station, an analysis station connected to the clean item transfer station, and a waste transfer station connected to the analysis station.

[0026] Clean items are transferred to the workstation for the transfer of consumables and reagents within the analysis line.

[0027] The analytical workstation is used for receiving and sending highly radioactive samples, sample identification and confirmation, sampling, and open-access analytical operations.

[0028] The waste transfer station is used for solid waste treatment, transferring solid waste from the analysis line.

[0029] Each workstation includes a sealed shielded chamber and at least one robotic arm located inside the shielded chamber. The shielded chambers are connected to each other via the aforementioned transfer device.

[0030] Preferably, the shielded chambers are detachably connected to each other via the aforementioned transfer device.

[0031] Preferably, the double-lid sealing assembly is connected to the shielded chamber of the analysis station, and the transfer bucket assembly is connected to the clean item transfer station or the waste transfer station.

[0032] Preferably, each analysis line contains 3 to 7 shielded chambers, and the shielding thickness of each chamber is no more than 150 mm.

[0033] Preferably, the shielding body of the shielding room is assembled from modular shielding bricks or shielding plates.

[0034] The beneficial effects of the transfer device and high-radioactivity sample analysis line of the present invention are as follows:

[0035] The shielded chambers are connected by a transfer device, which enables rapid disassembly and connection between the chambers. When the chamber lids and barrel lids are separated, each chamber maintains independent sealing performance, and the chamber lids and barrel lids are not contaminated when they are put together, which is beneficial for the upgrading and transformation of the analytical laboratory. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the high-radioactivity sample analysis line in Embodiment 2 of the present invention;

[0037] Figure 2 This is a schematic diagram of the transfer device in Embodiment 2 of the present invention;

[0038] Figure 3 This is a structural diagram of the transfer bucket assembly;

[0039] Figure 4 This is a schematic diagram of the structure for locking the barrel lid and barrel flange together;

[0040] Figure 5 This is a schematic diagram of the double-cap sealing assembly;

[0041] Figure 6 This is a schematic diagram of the double-cap sealing assembly;

[0042] Figure 7 This is a schematic diagram of the structure for locking the barrel flange to the chamber sealing flange;

[0043] Figure 8 This is a schematic diagram of the locking structure between the barrel lid and the chamber lid.

[0044] In the diagram: 1. Antechamber; 2. Clean item transfer station; 3. Analysis station; 4. Waste transfer station; 5. First shielded chamber; 6. Horizontal sealed transfer device; 7. Shielding body; 8. Automated robotic arm; 9. Transfer device; 10. Master-slave robotic arm; 11. Sword-type robotic arm; 12. Viewing window; 21. Double-lid sealing assembly; 22. First connecting assembly; 23. Barrel flange one; 24. Barrel flange two; 25. Axial limiting block; 26. Outer barrel; 27. Bellows; 28. Inner barrel; 29. ​​Channel platform; 30. Rotating handle 31. Rotary seat; 32. O-ring seal; 33. Plug seal; 34. Bucket lid; 35. Bucket sealing ring; 23a is bucket flange guide groove; 23b is bucket flange guide flange; 34a is bucket lid guide flange; 34b is bucket lid guide groove; 36. Chamber sealing flange; 37. Chamber lid; 38. Rotating shaft; 39. Rotating arm; 40. Guide clamping pin; 41. Locking ring; 42. Electric cylinder; 43. O-ring; 44. Locking nut; 45. Bucket lid sealing ring; 36a is chamber sealing flange guide groove; 37a is chamber lid guide flange. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0047] In the description of this patent, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0048] The specific orientation and operation of the structure should not be construed as a limitation of this patent.

[0049] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0050] Example 1

[0051] This embodiment provides a transfer device, including:

[0052] The double-cover sealing assembly includes: a chamber cover, a first connecting assembly connected to the chamber cover 37, and the first connecting assembly being connected to a first shielding chamber;

[0053] The transfer bucket assembly includes: a transfer bucket, a second connecting component connected to one end of the transfer bucket, and a bucket lid connected to the second connecting component. The bucket lid is used to cover the transfer bucket, and the other end of the transfer bucket is connected to a second shielding chamber.

[0054] The docking component is connected to the second connecting component. The docking component is used to drive the second connecting component to move toward the first connecting component, so that the bucket lid docks with the chamber lid and the bucket lid disengages from the second connecting component. The docking component is also used to drive the second connecting component to move away from the first connecting component, so that the bucket lid disengages from the chamber lid and the bucket lid docks with the second connecting component.

[0055] A drive mechanism, located on the second connecting component, is used to drive the opening and closing of the chamber cover.

[0056] This embodiment also provides a high-radioactivity sample analysis line, including: a clean item transfer station, an analysis station connected to the clean item transfer station, and a waste transfer station connected to the analysis station.

[0057] Clean items are transferred to the workstation for the transfer of consumables and reagents within the analysis line.

[0058] The analytical workstation is used for receiving and sending highly radioactive samples, sample identification and confirmation, sampling, and open-access analytical operations.

[0059] The waste transfer station is used for solid waste treatment, transferring solid waste from the analysis line.

[0060] Each workstation includes a sealed shielded chamber and at least one robotic arm located inside the shielded chamber. The shielded chambers are connected to each other via the aforementioned transfer device.

[0061] The beneficial effects of the transport device and the high-radioactivity sample analysis line in this embodiment are as follows:

[0062] The shielded chambers are connected by a transfer device, which enables rapid disassembly and connection between the chambers. When the chamber lids and barrel lids are separated, each chamber maintains independent sealing performance, and the chamber lids and barrel lids are not contaminated when they are put together, which is beneficial for the upgrading and transformation of the analytical laboratory.

[0063] Example 2

[0064] like Figures 2-8 As shown, this embodiment provides a transfer device 9, including:

[0065] The double-cover sealing assembly 21 includes: a chamber cover 37 and a first connecting assembly 22 connected to the chamber cover 37, wherein the first connecting assembly 22 is connected to the first shielding chamber 5;

[0066] The transfer bucket assembly includes: a transfer bucket, a second connecting component connected to one end of the transfer bucket, and a bucket cover 34 connected to the second connecting component. The bucket cover 34 is used to cover the transfer bucket, and the other end of the transfer bucket is connected to a second shielding chamber.

[0067] The docking component is connected to the second connecting component. The docking component is used to drive the second connecting component to move toward the first connecting component 22, thereby causing the bucket lid 34 to dock with the chamber lid 37 and the bucket lid 34 to disengage from the second connecting component. The docking component is also used to drive the second connecting component to move away from the first connecting component 22, thereby causing the bucket lid 34 to disengage from the chamber lid 37 and the bucket lid 34 to dock with the second connecting component.

[0068] A drive mechanism, located on the second connecting component, is used to drive the opening and closing of the chamber cover 37.

[0069] Specifically, in this embodiment, the driving mechanism is an electric cylinder 42.

[0070] Preferably, the first connecting assembly 22 includes: a chamber sealing flange 36, a rotating shaft 38, a rotating arm 39, a guide clamping pin 40, a locking ring 41, and a locking nut 44. The chamber sealing flange 36 is connected to the first shielding chamber 5 via the locking nut 44. The rotating shaft 38 is mounted on the chamber cover 37. The rotating arm 39 is connected to the rotating shaft 38 and is hinged to the chamber sealing flange 36. The guide clamping pin 40 is mounted on the chamber cover 37. The locking ring 41 is rotatably connected to the chamber sealing flange 36. The locking ring 41 has an annular groove. The locking ring 41 is connected to a drive mechanism. The drive mechanism drives the locking ring 41 to rotate in the forward direction, causing the guide clamping pin 40 to screw into the annular groove, thereby closing the chamber cover 37. The drive mechanism also drives the locking ring 41 to rotate in the reverse direction, causing the guide clamping pin 40 to screw out of the annular groove, thereby opening the chamber cover 37.

[0071] The aforementioned chamber cover 37 is clearance-fitted with the rotating shaft 38 fixed on the rotating arm 39, allowing the chamber cover 37 to have a certain amount of floating when rotating horizontally around the rotating shaft 38. The rotating arm 39 is mounted on the chamber sealing flange 36, and the rotating arm 39 and the chamber sealing flange 36 are hinged together by a hinge shaft. The rotating arm 39 can rotate around the fixed hinge shaft, and the function of opening and closing the sealed chamber cover 37 is achieved by rotating the rotating arm 39.

[0072] Preferably, the first connecting assembly 22 further includes: an O-ring 43 and a lid sealing ring 45.

[0073] O-ring 43 is disposed on the chamber sealing flange 36 or the first shielding chamber 5. O-ring 43 is used for sealing between the chamber sealing flange 36 and the first shielding chamber 5. O-ring 43 is located between the chamber sealing flange 36 and the first shielding chamber 5.

[0074] A barrel lid sealing ring 45 is provided on the chamber sealing flange 36 or the chamber cover 37, and the barrel lid sealing ring 45 is used to seal between the chamber sealing flange 36 and the chamber cover 37. The barrel lid sealing ring 45 is located between the chamber sealing flange 36 and the chamber cover 37.

[0075] The guide pins 40 symmetrically arranged on the chamber cover 37 can enter the annular inclined groove on the locking ring 41. By pushing the locking ring 41 to rotate through the electric cylinder 42, the chamber cover 37 and the barrel cover sealing ring 45 can be pressed together to achieve a seal.

[0076] When the chamber cover 37 and the barrel cover 34 are closed or separated, each shielded chamber maintains independent sealing performance, and the chamber cover 37 and the barrel cover 34 are not contaminated when they are in contact.

[0077] The double-cover sealing assembly 21 is locked to the wall of the first shielding chamber 5 through the chamber sealing flange 36 and the locking nut 44, and the O-ring 43 is used to achieve a seal between the chamber of the first shielding chamber 5 and the double-cover sealing assembly 21.

[0078] Preferably, the second connecting assembly includes: a first barrel flange 23 and a second barrel flange 24 connected to the first barrel flange 23. The first barrel flange 23 is threadedly connected to the transfer barrel, the second barrel flange 24 is threadedly connected to the transfer barrel, and the first barrel flange 23 is connected to the barrel cover 34.

[0079] An O-ring 32 is installed between barrel flange 24 and barrel flange 23 to form an end face seal, and barrel flange 23 and barrel flange 24 are fixedly connected by bolts.

[0080] The second connecting assembly also includes a barrel sealing ring 35, which is disposed between the barrel cover 34 and the barrel flange 23, and is used to seal between the barrel cover 34 and the barrel flange 23.

[0081] Preferably, the docking assembly includes: a rotating base 31 and a rotating handle 30 connected to the rotating base 31. The rotating base 31 is disposed on the barrel flange 24, and the barrel flange 24 is rotated by the movement of the rotating handle 30.

[0082] Preferably, the transfer bucket assembly further includes an axial limiting block 25 disposed on the transfer bucket, the axial limiting block 25 being used to axially limit the second connecting assembly.

[0083] Specifically, in this embodiment, two sets of axial limiting blocks 25 are installed at radially symmetrical positions of the transfer bucket to restrict the overall axial movement of the bucket flange 1 23 and bucket flange 24.

[0084] Preferably, the transfer container includes: an outer container 26, a corrugated pipe 27 connected to the outer container 26, and an inner container 28 connected to the corrugated pipe 27, with the outer container 26 connected to the second connecting assembly.

[0085] The second connecting assembly also includes a sealing plug 33, which is disposed between the outer drum 26 and the second drum flange 24. One end of the transfer drum is the outer drum 26, and the outer drum 26 forms a radial seal between the sealing plug 33 and the second drum flange 24.

[0086] Specifically, in this embodiment, symmetrically arranged rotating seats 31 are installed on the second barrel flange 24. By inserting the rotating handle 30 into the rotating seat 31 and rotating it counterclockwise, the two fixed second barrel flange 24 and first barrel flange 23 can rotate relative to each other around the outer barrel 26.

[0087] Preferably, the transfer device 9 further includes a channel platform 29 disposed within the transfer bin. The channel platform 29 includes a channel platform body and handles respectively disposed at both ends of the channel platform body. The channel platform 29 is used to place the transfer material. The channel platform 29 is bidirectionally pullable, facilitating the operation of the robotic arm and realizing the transfer and transportation of materials between two adjacent shielded chambers within the transfer bin.

[0088] The other end of the transfer drum, the inner drum 28, is fastened to the flange ring of the second shielding chamber by bolts via a sealing gasket. The inner drum 28 and the outer drum 26 are connected by a corrugated pipe 27 to compensate for axial and radial errors during docking between shielding chambers. The inner drum 28 is equipped with a bidirectionally movable channel platform 29. When materials are transferred, the channel platform 29 is pulled into either side of the shielding chamber, and the materials are then placed on the channel platform 29. The effective travel of the channel platform 29 in any two directions is 500mm.

[0089] Preferably, the double-lid sealing assembly 21 further includes a third connecting assembly, through which the bucket lid 34 is locked or unlocked to the chamber lid 37.

[0090] The third connecting component includes: a lid guide groove 34b and a chamber lid guide flange 37a. The lid guide groove 34b is disposed on the lid 34, and the chamber lid guide flange 37a is disposed on the chamber lid 37. The lid guide groove 34b and the chamber lid guide flange 37a cooperate to lock or unlock.

[0091] Preferably, the transfer container assembly further includes a fourth connecting component, through which the container lid 34 is locked or unlocked with the second connecting component.

[0092] The fourth connecting component includes: a lid guide flange 34a and a flange guide groove 23a. The lid guide flange 34a is disposed on the lid 34, and the flange guide groove 23a is disposed on the second connecting component. The lid guide flange 34a and the flange guide groove 23a cooperate to lock or unlock.

[0093] Specifically, in this embodiment, the barrel flange guide groove 23a is provided on the barrel flange 23.

[0094] The transfer device 9 also includes a fifth connecting component, through which the first connecting component 22 is locked or unlocked to the second connecting component.

[0095] The fifth connecting component includes: a barrel flange guide flange 23b and a chamber sealing flange guide groove 36a. The chamber sealing flange guide groove 36a is disposed on the first connecting component 22, and the barrel flange guide flange 23b is disposed on the second connecting component. The barrel flange guide flange 23b and the chamber sealing flange guide groove 36a cooperate to lock or unlock.

[0096] Specifically, in this embodiment, the barrel flange guide flange 23b is disposed on the barrel flange 23, and the chamber sealing flange guide groove 36a is disposed on the chamber sealing flange 36.

[0097] Before docking, the double-cap sealing assembly 21 and the transfer barrel assembly each seal their respective shielding chambers. During docking, the first shielding chamber 5 containing the double-cap sealing assembly 21 is guided by a guide rail, pushing the first shielding chamber 5 to move along the rail, causing the chamber sealing flange 36 to dock with the barrel flange 23 of the transfer barrel assembly until their end faces are flush. During docking, the barrel flange guide flange 23b enters the chamber sealing flange guide groove 36a. Then, the rotating handle 30 is inserted into the rotating seat 31 on the transfer barrel assembly, and a counterclockwise force is applied to the two rotating handles 30 to rotate the barrel flange 24. Since the barrel flange 24 and the barrel flange 23 are fixedly connected, the barrel flange 23 will rotate together during the process. After rotating a total of 60°, the four barrel flange guide flanges 23b enter the chamber sealing flange guide groove 36a, restricting the axial movement between the two flanges, and locking the barrel flange 23 with the chamber sealing flange 36 on the double-cap sealing assembly 21.

[0098] Simultaneously, as the barrel flange 23 rotates, the barrel lid 34 rotates accordingly, gradually locking with the chamber lid 37 (the barrel lid 34 rotates relative to the chamber lid 37, and the barrel lid guide groove 34b engages with the chamber lid guide flange 37a), and unlocking with the barrel flange 23 (the barrel lid 34 rotates relative to the barrel flange 23, and the barrel lid guide flange 34a rotates to unlock with the barrel flange guide groove 23a). After docking is completed, the drive cylinder 42 retracts, and the locking ring 41 no longer presses against the chamber lid 37. In this state, the docked double lids are opened, completing the sealed docking between the two chambers. The separation operation between the chambers is the reverse of the docking process described above.

[0099] In this embodiment, the sealed chamber cover 37 is fixed to the shielded chamber of the analysis station 3. When the sealed chamber cover 37 and the barrel cover 34 are closed or separated, each shielded chamber maintains independent sealing performance. The aforementioned transfer device 9 enables rapid disassembly and connection, and the entire disassembly and connection process is sealed, preventing the leakage of radioactive atmosphere. It is safe and reliable, facilitating the reconfiguration of the shielded chamber analysis lines and meeting the needs for upgrades and modifications to the analysis lines.

[0100] In this embodiment, a channel platform 29 is provided inside the transfer barrel. The channel platform 29 has handles at both ends for easy operation of the robotic arm. The two ends of the channel platform 29 are bidirectionally pullable for material transfer between adjacent shielded chambers.

[0101] like Figure 1 As shown, this embodiment also provides a high-radioactivity sample analysis line, including: a clean item transfer station 2, an analysis station 3 connected to the clean item transfer station 2, and a waste transfer station 4 connected to the analysis station 3.

[0102] Clean items are transferred to workstation 2 for the transfer of consumables and reagents within the analysis line.

[0103] Analysis station 3 is used for receiving and sending highly radioactive samples, sample identification and confirmation, sampling, and open-access analysis operations.

[0104] Waste transfer station 4 is used for solid waste treatment, transferring solid waste from the analysis line.

[0105] The radioactivity levels of the items processed at each workstation are different. In order to ensure the relative independence of each workstation, each workstation includes a sealed shielded room and at least one robotic arm located inside the shielded room. The shielded rooms are connected to each other by the aforementioned transfer device 9.

[0106] Specifically, the clean items transfer station 2 is connected to an anteroom 1, which is used to input the samples to be transferred. The analysis station 3 is equipped with a viewing window 12. The waste transfer station 4 is connected to a horizontal sealed transfer device 6.

[0107] Specifically, each workstation in this embodiment includes a number of robotic arms. The workstations are connected in series via a transfer device 9, which connects the shells inside each shielded room.

[0108] Preferably, the shielded chambers are detachably connected via the transfer device 9. The transfer device 9 allows for sealed docking and disassembly of the shielded chambers, facilitating the replacement of individual shielded chambers and the assembly of analytical lines, thus enabling the installation, replacement, modification, upgrading, and decommissioning of analytical lines.

[0109] Preferably, the double-lid sealing assembly 21 is connected to the shielded chamber of the analysis station 3, and the transfer bucket assembly is connected to the clean item transfer station 2 or the waste transfer station 4.

[0110] Preferably, each analysis line contains 3 to 7 shielded chambers, and the thickness of the shielding body 7 in each shielded chamber is no more than 150 mm.

[0111] Preferably, the shielding body 7 of the shielding room is assembled from modular shielding bricks or shielding plates. The outer shielding of the analysis line adopts a modular assembly structure, which is beneficial for the installation, inspection, maintenance, upgrading, and decommissioning of the analysis line's shielding room.

[0112] To facilitate the transfer, analysis, and maintenance of equipment within the shielded room, a certain number of robotic arms are configured, typically 1 to 4 sets. To facilitate upgrades and modifications to the analytical lines while conserving space, the thickness of the shielding body 7 within the sealed shielded room is no greater than 150mm. The shielding body 7 can be made of lead, cast iron, or depleted uranium and is constructed from modular shielding bricks or plates for easy disassembly and assembly. The shielding body 7 is reusable, reducing decommissioning difficulty and costs.

[0113] Specifically, in this embodiment, the total thickness of the shielding body 7 is 150mm (using three layers of 50mm lead bricks for shielding), and the inner casing of the shielding chamber is made of 304L stainless steel. Each shielding chamber is equipped with its own inlet and outlet air filters, and the atmosphere of each shielding chamber is independent of each other. For ease of operation, the support legs of the shielding chamber are 960mm high.

[0114] Specifically, in this embodiment, each workstation's shielded room is equipped with a pair of master-slave robotic arms 10, and the analysis workstation 3 is equipped with an automatic robotic arm 8 for analysis operations and a sword-shaped robotic arm 11 for source removal and maintenance.

[0115] Preferably, the high-level radioactive analysis line includes at least one clean item transfer station 2, one waste transfer station 4, and one analysis station 3, that is, at least three connected in series to form a shielded chamber. In this embodiment, the analysis line includes two clean item transfer stations 2, one solid waste transfer station 4, and two analysis stations 3.

[0116] Specifically, in this embodiment, the high-radioactivity sample analysis line (hereinafter referred to as the "analysis line") is mainly used for radioactive analysis of medium and high-radioactivity samples. It is mainly composed of clean item transfer station 2, analysis station 3 and waste transfer station 4 connected in series. There are two clean item transfer stations 2 and two analysis stations 3.

[0117] Furthermore, the inner enclosure of the shielded room is generally made of stainless steel, with internal dimensions meeting the space requirements for operation and maintenance. It is typically 1200–2000 mm long, 1000–1800 mm wide, and 1000–2000 mm high. The shielded room is equipped with a certain number of pipe fittings, conduit fittings, and electrical connectors as needed for compressed air delivery, reagent delivery, and power supply. Each shielded room has its own set of inlet and exhaust air filters for easy maintenance. In addition, the shielded room has a viewing window 12, a negative pressure monitoring device, and lighting fixtures; for ease of operation, the support legs of the shielded room are approximately 800 mm–960 mm high.

[0118] The shielded room at analysis station 3 is also equipped with pneumatic sample delivery pipes and transceiver devices for receiving and sending radioactive samples. The shielded room at waste transfer station 4 is specifically equipped with an ultrasonic cleaner and solid waste transfer bins for cleaning and transferring solid waste.

[0119] The above-mentioned analytical line operation process is as follows: Clean reagents, other consumables, or small parts required for analysis are first transferred from outside the analytical line to station 2, then transferred by a robotic arm to transfer device 9, and finally transferred by a robotic arm to analytical station 3. Analytical station 3 performs corresponding analytical operations according to analytical instructions. For example, analytical station 3 performs receiving and sending of highly radioactive samples, sample identification and confirmation, sampling, and open analysis operations. In this embodiment, open analysis operations include sample addition, weighing, heating, dissolving, dilution, filtration, extraction, and separation. Solid waste generated at analytical station 3 is transferred by a robotic arm to transfer device 9, and then removed from transfer device 9 by a robotic arm at waste transfer station 4, and transferred to waste transfer station 4 for cleaning and drying. Solid waste at waste transfer station 4 is transferred by a robotic arm to horizontal sealed transfer device 6 for collection and then transferred out of the analytical line. In this embodiment, solid waste generated at analytical station 3 includes sample bottles, beakers, reagent bottles, sampling needles, extraction columns, and instrument parts.

[0120] Specifically, when no item transfer is required, the double covers of the transfer device 9 are closed, and each shielded chamber remains independently sealed. When item transfer is required, both covers are opened simultaneously, and after the transfer is completed, the double covers are closed again. During item transfer, the shielded chambers are kept continuously sealed, the environmental atmosphere of the shielded chambers is not disrupted, and cross-contamination is not caused.

[0121] The beneficial effects of the transfer device 9 and the high-radioactivity sample analysis line in this embodiment are as follows:

[0122] (1) The analysis line adopts a miniaturized and modular design, with analysis station 3, clean item transfer station 2 and waste transfer station 4. Each station has independent functions, which facilitates the analysis of high radioactive samples and the transfer of materials, and meets the analysis operation requirements of various radioactive samples.

[0123] (2) The shielded chambers are connected by the transfer device 9, which enables rapid disassembly and connection between the shielded chambers. When the chamber cover 37 and the barrel cover 34 are separated, each shielded chamber maintains independent sealing performance. When the chamber cover 37 and the barrel cover 34 are put together, they are not contaminated. This is suitable for the analysis of highly radioactive samples and facilitates the construction, upgrading, and decommissioning of analytical laboratories. The transfer device 9 is well-sealed, and the disassembly and assembly process is completely sealed to ensure the safety of operators and the operating environment.

[0124] (3) The shield 7 is set with an appropriate thickness according to the sample irradiation dose level. The shield 7 is relatively thin and modularly assembled, which saves the floor space and makes it easy to disassemble and assemble the shield 7. The shield 7 does not need to be cut when it is decommissioned, which reduces the decommissioning cost. The shield 7 can be reused, which improves the economy of construction and operation of the analytical laboratory.

[0125] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A transfer device, characterized in that, include: The double-cover sealing assembly (21) includes: a chamber cover (37) and a first connecting assembly (22) connected to the chamber cover (37), the first connecting assembly (22) being connected to the first shielding chamber (5); The transfer bucket assembly includes: a transfer bucket, a second connecting component connected to one end of the transfer bucket, and a bucket lid (34) connected to the second connecting component. The bucket lid (34) is used to cover the transfer bucket, and the other end of the transfer bucket is connected to a second shielding chamber. The docking component is connected to the second connecting component. The docking component is used to drive the second connecting component to move toward the first connecting component (22), thereby causing the bucket lid (34) to dock with the chamber lid (37) and the bucket lid (34) to disengage from the second connecting component. The docking component is also used to drive the second connecting component to move away from the first connecting component (22), thereby causing the bucket lid (34) to disengage from the chamber lid (37) and the bucket lid (34) to dock with the second connecting component. A drive mechanism is provided on the first connecting component and is used to drive the opening and closing of the chamber cover (37).

2. The transfer device according to claim 1, characterized in that, The first connecting assembly (22) includes: a chamber sealing flange (36), a rotating shaft (38), a rotating arm (39), a guide clamping pin (40), a locking ring (41), and a locking nut (44). The chamber sealing flange (36) is connected to the first shielding chamber (5) via the locking nut (44). The rotating shaft (38) is mounted on the chamber cover (37). The rotating arm (39) is connected to the rotating shaft (38) and is hinged to the chamber sealing flange (36). The guide clamping pin (40) is mounted on the chamber cover (37). On the chamber cover (37), the locking ring (41) is rotatably connected to the chamber sealing flange (36). The locking ring (41) is provided with an annular inclined groove. The locking ring (41) is connected to the drive mechanism. The drive mechanism drives the locking ring (41) to rotate in the forward direction, so that the guide pressing pin (40) is screwed into the annular inclined groove, which drives the chamber cover (37) to close. The drive mechanism drives the locking ring (41) to rotate in the reverse direction, so that the guide pressing pin (40) is screwed out of the annular inclined groove, which drives the chamber cover (37) to open.

3. The transfer device according to claim 2, characterized in that, The first connecting component also includes: an O-ring (43) and a lid sealing ring (45). O-rings (43) are provided on the chamber sealing flange (36) or the first shielding chamber (5). O-rings (43) are used to seal between the chamber sealing flange (36) and the first shielding chamber (5). The barrel lid sealing ring (45) is installed on the chamber sealing flange (36) or the chamber cover (37). The barrel lid sealing ring (45) is used to seal between the chamber sealing flange (36) and the chamber cover (37).

4. The transfer device according to claim 1, characterized in that, The second connecting assembly includes: a first barrel flange (23) and a second barrel flange (24) connected to the first barrel flange (23). The first barrel flange (23) is connected to the transfer barrel by a thread, the second barrel flange (24) is connected to the transfer barrel by a thread, and the first barrel flange (23) is connected to the barrel lid (34).

5. The transfer device according to claim 4, characterized in that, The docking assembly includes: a rotating base (31) and a rotating handle (30) connected to the rotating base (31). The rotating base (31) is set on the second barrel flange (24), and the second barrel flange (24) is rotated by the movement of the rotating handle (30).

6. The transfer device according to any one of claims 1 to 5, characterized in that, The transfer bucket assembly also includes an axial limiting block (25) disposed on the transfer bucket, which is used to axially limit the second connecting assembly.

7. The transfer device according to any one of claims 1 to 5, characterized in that, The transfer container includes: an outer container (26), a corrugated pipe (27) connected to the outer container (26), and an inner container (28) connected to the corrugated pipe (27). The outer container (26) is connected to a second connecting assembly.

8. The transfer device according to any one of claims 1 to 5, characterized in that, Also includes: The channel platform (29) is set inside the transfer container. The channel platform (29) includes: the channel platform body and handles respectively set at both ends of the channel platform body. The channel platform (29) is used to place the transfer materials.

9. The transfer device according to any one of claims 1 to 5, characterized in that, The double-lid sealing assembly (21) also includes a third connecting assembly, through which the lid (34) is locked or unlocked to the chamber lid (37). The third connecting component includes: a barrel lid guide groove (34b) and a chamber lid guide flange (37a). The barrel lid guide groove (34b) is disposed on the barrel lid (34), and the chamber lid guide flange (37a) is disposed on the chamber lid (37). The barrel lid guide groove (34b) and the chamber lid guide flange (37a) cooperate to lock or unlock.

10. The transfer device according to any one of claims 1 to 5, characterized in that, The transfer container assembly also includes: a fourth connecting component, wherein the lid (34) is locked or unlocked to the second connecting component via the fourth connecting component. The fourth connecting component includes: a lid guide flange (34a) and a flange guide groove (23a). The lid guide flange (34a) is disposed on the lid (34), and the flange guide groove (23a) is disposed on the second connecting component. The lid guide flange (34a) and the flange guide groove (23a) cooperate to lock or unlock.

11. The transfer device according to any one of claims 1 to 5, characterized in that, Also includes: The fifth connecting component, the first connecting component (22) is locked or unlocked with the second connecting component through the fifth connecting component. The fifth connecting component includes: a barrel flange guide flange (23b) and a chamber sealing flange guide groove (36a). The chamber sealing flange guide groove (36a) is disposed on the first connecting component (22), and the barrel flange guide flange (23b) is disposed on the second connecting component. The barrel flange guide flange (23b) and the chamber sealing flange guide groove (36a) cooperate to lock or unlock.

12. A high-radioactivity sample analysis line, characterized in that, include: Clean item transfer station (2), analysis station (3) connected to the clean item transfer station (2), and waste transfer station (4) connected to the analysis station (3). Clean items are transferred to the workstation (2) for the transfer of consumables and reagents within the analysis line. Analysis station (3) is used for receiving and sending highly radioactive samples, sample identification and confirmation, sampling, and open analysis operations. Waste transfer station (4) is used for solid waste treatment and for transferring solid waste from the analysis line. Each workstation includes a sealed shielded chamber and at least one robotic arm located inside the shielded chamber. The shielded chambers are connected to each other by a transfer device (9) as described in any one of claims 1 to 11.

13. The high radioactivity sample analysis line according to claim 12, characterized in that, Each shielded room is detachably connected to the other via the aforementioned transfer device (9).

14. The high radioactivity sample analysis line according to claim 12, characterized in that, The double-cap sealing assembly (21) is connected to the shielded chamber of the analysis station (3), and the transfer bucket assembly is connected to the clean item transfer station (2) or the waste transfer station (4).

15. The high radioactivity sample analysis line according to claim 12, characterized in that, The number of shielded rooms in each analysis line is 3 to 7, and the thickness of the shielding body (7) of the shielded room is no more than 150 mm.

16. The high radioactivity sample analysis line according to claim 12, characterized in that, The shielding body (7) of the shielding room is assembled from modular shielding bricks or shielding plates.

Images