Vertical sealed transport structure for radioactive material

Abstract

The application provides a radioactive material vertical sealing transportation structure and belongs to the nuclear technology field. When radioactive materials are transported in the sealing channel to the vertical channel, the fork unit forks the radioactive materials from the first horizontal channel or the second horizontal channel. After the fork unit forks the radioactive materials, the control unit controls the first driver and the second driver to move upward or downward at the same time. Since there is a traveling wave magnetic field between the first driver and the first secondary plate, the fork unit moves with the first driver under the driving of the traveling wave magnetic field. There is also a traveling wave magnetic field between the second driver and the second secondary plate, which drives the locking part to move away from the vertical rod. When the power is suddenly cut off, the magnetic field between the second driver and the second secondary plate disappears. Under the action of the spring's own elastic force, the locking part moves close to the vertical rod, thereby playing a braking role on the fork unit, avoiding the out-of-control of the fork unit in the falling process and causing the radioactive material leakage.

Description

A vertical sealed transport structure for radioactive materials Technical Field

[0001] This invention belongs to the field of nuclear technology, specifically relating to a vertical sealed transport structure for radioactive materials. Background Technology

[0002] In the field of sealed transport technology for radioactive materials, radioactive materials pose a significant hazard and must be transported through sealed transport channels. During vertical sealed transport, radioactive materials are typically lifted vertically via a bottom lifting mechanism or an upper wire rope system. This requires connection to the sealed chamber, or the motor may be located inside the sealed chamber, affecting the sealing performance of the chamber or making maintenance difficult. Furthermore, if a sudden power outage or other uncontrolled event occurs during vertical transport, the forklift unit carrying the radioactive material may fall uncontrollably, causing a leak. Summary of the Invention

[0003] This invention provides a vertical sealed transport structure for radioactive materials, which aims to solve the technical problem of radioactive material leakage caused by the uncontrolled fall of the forklift unit during vertical sealed transport of radioactive materials in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a vertical sealed transport structure for radioactive materials, comprising:

[0005] The sealed channel includes a first horizontal channel, a second horizontal channel, and a vertical channel. The second horizontal channel is located above the first horizontal channel, and one end of the vertical channel is connected to the first horizontal channel, while the other end is connected to the second horizontal channel.

[0006] A transport assembly is disposed within the vertical channel. The transport assembly includes a transport guide rail and a fork unit. The transport guide rail is arranged in parallel along the vertical direction, and the fork unit is slidably engaged with the transport guide rail.

[0007] A vertical drive unit includes a drive rail, a first driver, and a first stage plate. The drive rail is arranged parallel to the transport guide rail and is located outside the vertical channel. The first stage plate is located on the fork unit, and the first driver slides along the length direction of the drive rail.

[0008] A fall prevention unit, slidably engaged with the transport guide rail, includes a vertical rod, a lifting rod, a crossbar, a slider, a spring, a locking element, a secondary stage plate, and a second actuator. The vertical rod and the lifting rod are arranged parallel to the transport guide rail. The lifting rod is located outside the vertical channel, and the vertical rod is located inside the vertical channel. The slider is sleeved on the vertical rod, and the slider slidably engages with the vertical rod. One end of the crossbar is connected to the fork unit, and the other end is fixedly connected to the slider. The outer wall of the slider near the lifting rod has a through hole, and the locking element slidably engages with the through hole. The locking element is located radially away from or near the vertical rod. One end of the spring is fixedly connected to the slider, and the spring is sleeved on the outer periphery of the locking element. The other end of the spring is fixedly connected to the locking element. The lifting rod has a second actuator, and the locking element has a secondary stage plate.

[0009] The control unit is electrically connected to the first driver and the second driver, respectively.

[0010] In one possible implementation, the first horizontal channel is provided with a first track arranged in parallel along the length of the first horizontal channel, and a first transport trolley is provided on the first track to slide in cooperation with the first track.

[0011] In one possible implementation, the second horizontal channel is located above the first horizontal channel, and a second track is provided in the second horizontal channel and arranged in parallel along the length of the second horizontal channel. A second transport trolley is provided on the second track and slides with the second track.

[0012] In one possible implementation, the fork unit includes:

[0013] A support plate is vertically arranged, and the support plate is slidably engaged with the transport guide rail;

[0014] A support frame is horizontally arranged, with one end of the support frame connected to the support plate;

[0015] Two forks, one end of which is connected to the other end of the support frame, and the two forks are horizontally spaced apart on both sides along the width direction of the support plate; and

[0016] The first stage plate is fixed to the support plate.

[0017] In one possible implementation, there are multiple drive rails, multiple first stage boards, and multiple first drivers, and the first drivers are configured in a one-to-one correspondence with the first stage boards.

[0018] In one possible implementation, a buffer is provided at the bottom of the vertical channel.

[0019] In one possible implementation, a first horizontal driver and a first peripheral track are provided outside the first horizontal channel. The first peripheral track is arranged in parallel with the first track and is located at the bottom of the first horizontal channel. The first horizontal driver is slidably disposed on the first peripheral track. The first transport trolley is provided with a first horizontal secondary plate. The first horizontal driver is electrically connected to the control unit.

[0020] In one possible implementation, a second horizontal driver and a second peripheral track are provided outside the second horizontal channel, the second peripheral track is arranged in parallel with the second track, and the second peripheral track is located at the top of the second horizontal channel; the second transport trolley is provided with a second horizontal secondary board, and the second horizontal driver is electrically connected to the control unit.

[0021] In one possible implementation, the second transport trolley further includes two connecting rods and a connector, one end of each connecting rod being connected to the second transport trolley, and the other ends of the two connecting rods being fixedly connected to the connector.

[0022] The second horizontal secondary plate is disposed on the connector.

[0023] In one possible implementation, the buffer is made of sponge.

[0024] The beneficial effects of the vertical sealed transport structure for radioactive materials provided by this invention are as follows: Compared with the prior art, this invention includes a sealed channel, a transport component, a vertical drive unit, an anti-fall unit, and a control unit. When the radioactive material is transported from the sealed channel to the vertical channel, the fork unit picks up the radioactive material from the first horizontal channel or the second horizontal channel. After picking up the radioactive material, the control unit controls the first driver and the second driver to move upward or downward simultaneously. Since there is a traveling wave magnetic field between the first driver and the first stage plate, the fork unit moves with the first driver under the drive of the traveling wave magnetic field. There is also a traveling wave magnetic field between the second driver and the second stage plate, which drives the locking member away from the vertical rod. Since the locking member is slidably connected to the through hole, the second driver drives the slider to move at the same speed as the fork unit on the vertical rod. When a power outage occurs, the magnetic field between the second actuator and the second stage plate disappears. Under the action of the spring's own elastic force, the locking component moves closer to the vertical rod, thereby stopping the fork unit and preventing it from going out of control during the fall, which could lead to the leakage of radioactive materials. This solves the technical problem of radioactive material leakage caused by the uncontrolled fall of the fork unit during vertical transportation in the prior art. Attached Figure Description

[0025] Figure 1 is a schematic diagram of a vertical sealed transport structure for radioactive materials provided in an embodiment of the present invention.

[0026] Figure 2 is a schematic diagram of a vertical sealed transport structure for radioactive materials provided in an embodiment of the present invention.

[0027] Figure 3 is a partially enlarged schematic diagram of area A in Figure 2 (Schematic diagram of the connection structure of the anti-fall unit).

[0028] Figure 4 is a schematic diagram of the connection structure of the anti-drop unit (II).

[0029] Figure 5 is a schematic diagram of the connection structure of the second track, the second transport trolley, the connecting rod, the connecting piece, and the second horizontal actuator.

[0030] Figure 6 is a schematic diagram of the connection structure between the first track and the first transport trolley;

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. First horizontal aisle; 2. Second horizontal aisle; 3. Vertical aisle; 41. Transport rail; 42. Forklift unit;

[0033] 51. Drive rail; 52. First driver; 53. First stage board;

[0034] 61. Vertical rod; 62. Lifting rod; 63. Horizontal rod; 64. Slider; 65. Locking element; 66. Secondary stage plate; 67. Second actuator; 68. Spring;

[0035] 11. First track; 12. First transport trolley; 15. First support leg;

[0036] 21. Second track; 22. Second transport trolley; 23. Connecting rod; 24. Connector; 26. Second horizontal actuator; 27. Second support leg;

[0037] 421. Support plate; 422. Support frame; 423. Forks. Detailed Implementation

[0038] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0040] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0041] The terms “length,” “width,” “up,” “down,” “front,” “back,” “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. They are used only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0043] Please refer to Figures 1 to 4 together. The present invention will now describe a vertical sealed transport structure for radioactive materials.

[0044] A vertical sealed transport structure for radioactive materials includes a sealed channel, a transport assembly, a vertical drive unit, a drop prevention unit, and a control unit. The sealed channel includes a first horizontal channel 1, a second horizontal channel 2, and a vertical channel 3. The second horizontal channel 2 is located above the first horizontal channel 1. One end of the vertical channel 3 is connected to the first horizontal channel 1, and the other end is connected to the second horizontal channel 2.

[0045] A transport component is provided in the vertical channel 3. The transport component includes a transport guide rail 41 and a fork unit 42. The transport guide rail 41 is arranged in parallel along the vertical direction, and the fork unit 42 is slidably engaged with the transport guide rail 41.

[0046] The vertical drive unit includes a drive slide rail 51, a first driver 52, and a first stage plate 53. The drive slide rail 51 is arranged in parallel with the transport guide rail 41. The drive slide rail 51 is located outside the vertical channel 3. The first stage plate 53 is located on the fork unit 42. The first driver 52 slides along the length direction of the drive slide rail 51.

[0047] The anti-fall unit slides in cooperation with the transport guide rail 41. The anti-fall unit includes a vertical rod 61, a lifting rod 62, a crossbar 63, a slider 64, a spring 68, a locking element 65, a secondary stage plate 66, and a second actuator 67. The vertical rod 61 and the lifting rod 62 are arranged parallel to the transport guide rail 41. The lifting rod 62 is located outside the vertical channel 3, and the vertical rod 61 is located inside the vertical channel 3. The slider 64 is sleeved on the vertical rod 61, and the slider 64 slides in cooperation with the vertical rod 61. One end of the crossbar 63 is connected to the fork unit 42, and the other end of the crossbar 63 is connected to the fork unit 42. The slider 64 is fixedly connected, and a through hole is provided on the outer side wall of the slider 64 near the lifting rod 62. The locking member 65 is slidably engaged with the through hole. The locking member 65 is located either away from or close to the vertical rod 61 in the radial direction. One end of the spring 68 is fixedly connected to the slider 64, and the spring 68 is sleeved on the outer periphery of the locking member 65. The other end of the spring 68 is fixedly connected to the locking member 65. A second driver 67 is provided on the lifting rod 62, and a second stage plate 66 is provided on the locking member 65. A traveling wave magnetic field exists between the second driver 67 and the second stage plate 66.

[0048] The present invention provides a vertical sealed transport structure for radioactive materials. Compared with the prior art, the present invention includes a sealed channel, a transport component, a vertical drive unit, an anti-fall unit, and a control unit. When radioactive material is transported from the sealed channel to the vertical channel 3, the fork unit 42 picks up the radioactive material from the first horizontal channel 1 or the second horizontal channel 2. As it rises, the fork unit 42 reaches the junction of the first horizontal channel 1 and the vertical channel 3, and the first transport trolley 12 carries the pallet to the first junction. The control unit controls the first driver 52 and the second driver 67 to move upward simultaneously, and the fork unit 42 moves upward to pick up the pallet. Subsequently, the control unit continues to control the first driver 52 and the second driver 67 to move upward simultaneously, driving the fork unit 42 to continue rising to the second junction of the second horizontal channel 2 and the vertical channel 3. When the fork unit 42 picks up the radioactive material to the second junction, the second transport trolley 22 in the second horizontal channel 2 also reaches the second junction. The control unit controls the fork unit 42 to move downward so that the pallet falls onto the second transport trolley 22. The second transport trolley 22 carries the goods for horizontal transport in the second horizontal channel 2.

[0049] After the fork unit 42 picks up radioactive material at the first or second handover station, the control unit controls the first driver 52 and the second driver 67 to move upward or downward simultaneously. Because there is a traveling wave magnetic field between the first driver 52 and the first stage plate 53, the fork unit 42 moves with the first driver 52 under the influence of this magnetic field. A traveling wave magnetic field also exists between the second driver 67 and the second stage plate 66, causing the locking member 65 to move away from the vertical rod 61. Since the locking member 65 is slidably connected to the through hole, the second driver 67 drives the slider 64 to move at the same speed as the fork unit 42 on the vertical rod 61. When power is suddenly cut off, the magnetic field between the second driver 67 and the second stage plate 66 disappears. Under the elastic force of the spring 68, the locking member 65 moves closer to the vertical rod 61, thus braking the fork unit 42 and preventing it from falling out of control and causing radioactive material leakage. This solves the technical problem in the prior art where the fork unit 42 falls out of control during vertical transportation, causing radioactive material leakage.

[0050] In some embodiments, referring to Figures 1 and 6, in one possible implementation, the first horizontal channel 1 is provided with a first track 11 arranged parallel to the length direction of the first horizontal channel 1, and a first transport trolley 12 is provided on the first track 11 and slides in cooperation with the first track 11. The first transport trolley 12 slides on the first track 11, making the transport of radioactive materials more stable.

[0051] Please refer to Figures 1 and 5. The second horizontal channel 2 is located above the first horizontal channel 1. A second track 21 is arranged parallel to the length of the second horizontal channel 2 within the second horizontal channel 2. A second transport trolley 22 is mounted on the second track 21 and slides in cooperation with it. The second transport trolley 22 slides on the second track 21, making the transport of radioactive materials more stable.

[0052] Based on the above embodiments, please refer to Figures 3 and 4. The fork unit 42 includes:

[0053] The support plate 421 is vertically arranged and slides with the transport guide rail 41.

[0054] A support frame 422 is horizontally arranged, and one end of the support frame 422 is connected to the support plate 421.

[0055] Two forks 423, one end of which is connected to the other end of the support frame 422, are horizontally spaced apart on both sides of the support plate 421 along its width direction; and

[0056] The first stage plate 53 is fixed on the support plate 421.

[0057] The forks 423 facilitate the transfer of radioactive materials from the first transport trolley 12 to the second transport trolley 22 or from the second transport trolley 22 to the first transport trolley 12.

[0058] Furthermore, there are multiple drive rails 51, primary stage plates 53, and first drivers 52, with each first driver 52 corresponding to a specific primary stage plate 53. The presence of multiple drive rails 51, primary stage plates 53, and first drivers 52 makes the forklift unit 42 operate more smoothly, further improving the stability during the vertical transport of radioactive materials.

[0059] Based on the above embodiments, the bottom of the vertical channel 3 is provided with a buffer to reduce the impact when radioactive materials fall and prevent further damage.

[0060] In one possible implementation, the first horizontal channel 1 is further provided with a first horizontal driver and a first external track. The first external track is arranged parallel to the first track 11 and is located at the bottom of the first horizontal channel 1. The first horizontal driver is slidably mounted on the first external track. The first transport trolley 12 is provided with a first horizontal secondary plate. The first horizontal driver is electrically connected to the control unit. The control unit controls the first horizontal driver to reciprocate along the first external track.

[0061] The first horizontal actuator and the first horizontal secondary plate rely on the traveling wave magnetic field to drive the first transport trolley 12 to move, which enhances the sealing performance of the sealed channel. The sealed channel does not require openings, thus avoiding the contamination of the external environment by radioactive materials.

[0062] Furthermore, the second horizontal channel 2 is externally provided with a second horizontal actuator 26 and a second external track. The second external track is arranged parallel to the second track 21 and is located at the top of the second horizontal channel 2. The second transport trolley 22 is provided with a second horizontal secondary plate 25, and the second horizontal actuator 26 is electrically connected to the control unit. The control unit controls the second horizontal actuator 26 to reciprocate along the second external track. The second horizontal actuator 26 and the second horizontal secondary plate 25 rely on a traveling wave magnetic field to drive the second transport trolley 22 to move, which enhances the sealing performance of the sealed channel. The sealed channel also does not require openings, avoiding contamination of the external environment by radioactive materials.

[0063] In one possible implementation, the second transport trolley 22 further includes two connecting rods 23 and a connector 24, one end of the connecting rods 23 being connected to the second transport trolley 22, and the other ends of the two connecting rods 23 being fixedly connected to the connector 24;

[0064] The second horizontal secondary plate 25 is disposed on the connector 24.

[0065] The second horizontal drive 26 is located above the second horizontal channel 2. The second horizontal drive 26 drives the second transport trolley 22 to move along the second track 21. At the same time, the second horizontal drive 26 is located above the second horizontal channel 2, which makes the operation of the second horizontal drive 26 more stable.

[0066] Furthermore, the cushioning element is made of sponge.

[0067] The bottom of the first horizontal channel 1 is provided with multiple first legs 15, and the bottom of the second horizontal channel 2 is provided with multiple second legs 27. The arrangement of the first legs 15 and the second legs 27 facilitates the adjustment of the level of the first horizontal channel 1 and the second horizontal channel 2 to adapt to different working conditions.

[0068] Specifically, the first driver 52, the second driver 67, the first horizontal driver, and the second horizontal driver 26 employ linear motor generators, which generate traveling wave magnetic fields.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vertical sealed transport structure for radioactive materials, characterized in that, include: A sealed channel includes a first horizontal channel (1), a second horizontal channel (2), and a vertical channel (3). The second horizontal channel (2) is located above the first horizontal channel (1). One end of the vertical channel (3) is connected to the first horizontal channel (1), and the other end is connected to the second horizontal channel (2). A transport assembly is located within the vertical channel (3). The transport assembly includes a transport guide rail (41) and a fork unit (42). The transport guide rail (41) is arranged parallel to each other in the vertical direction, and the fork unit (42) is slidably engaged with the transport guide rail (41). A vertical drive unit includes a drive slide rail (51). The system comprises a first driver (52) and a first stage plate (53), wherein the drive slide rail (51) is arranged parallel to the transport guide rail (41), the drive slide rail (51) is located outside the vertical channel (3), and the first stage plate (53) is located on the fork unit (42). The first driver (52) slides along the length direction of the drive slide rail (51). An anti-fall unit is slidably engaged with the transport guide rail (41). The anti-fall unit includes a vertical rod (61), a lifting rod (62), a crossbar (63), a slider (64), a spring (68), a locking element (65), a second stage plate (66), and a first stage plate (53). Two actuators (67); the vertical rod (61), the lifting rod (62), and the transport guide rail (41) are arranged in parallel; the lifting rod (62) is located outside the vertical channel (3), the vertical rod (61) is located inside the vertical channel (3), the slider (64) is sleeved on the vertical rod (61), and the slider (64) and the vertical rod (61) are slidably engaged; one end of the crossbar (63) is connected to the fork unit (42), and the other end of the crossbar (63) is fixedly connected to the slider (64), and the outer wall of the slider (64) near the lifting rod (62) has a through hole. The locking member (65) is slidably engaged with the through hole, and the locking member (65) is located radially away from or close to the vertical rod (61); one end of the spring (68) is fixedly connected to the slider (64), the spring (68) is sleeved on the outer periphery of the locking member (65), and the other end of the spring (68) is fixedly connected to the locking member (65); a second driver (67) is provided on the lifting rod (62), and a second stage plate (66) is provided on the locking member (65); and a control unit is electrically connected to the first driver (52) and the second driver (67) respectively.

2. The vertical sealed transport structure for radioactive materials as described in claim 1, characterized in that, The first horizontal channel (1) is provided with a first track (11) arranged in parallel along the length direction of the first horizontal channel (1), and a first transport trolley (12) is provided on the first track (11) and slides with the first track (11).

3. The vertical sealed transport structure for radioactive materials as described in claim 2, characterized in that, The second horizontal channel (2) is located above the first horizontal channel (1). The second horizontal channel (2) is provided with a second track (21) arranged in parallel along the length of the second horizontal channel (2). A second transport trolley (22) is provided on the second track (21) and slides with the second track (21).

4. The vertical sealed transport structure for radioactive materials as described in claim 3, characterized in that, The fork unit (42) includes: a support plate (421) arranged vertically, the support plate (421) being slidably engaged with the transport guide rail (41); a support frame (422) arranged horizontally, one end of the support frame (422) being connected to the support plate; two forks (423), one end of the forks (423) being connected to the other end of the support frame (422), the two forks (423) being arranged horizontally at intervals on both sides along the width direction of the support plate; and wherein the first stage plate (53) is fixedly mounted on the support plate.

5. The vertical sealed transport structure for radioactive materials as described in claim 4, characterized in that, There are multiple drive slide rails (51), first stage plates (53) and first drivers (52), and the first drivers (52) are arranged in a one-to-one correspondence with the first stage plates (53).

6. The vertical sealed transport structure for radioactive materials as described in claim 5, characterized in that, The bottom of the vertical channel (3) is provided with a buffer.

7. The vertical sealed transport structure for radioactive materials as described in claim 6, characterized in that, The first horizontal channel (1) is also provided with a first horizontal driver and a first peripheral track. The first peripheral track is arranged in parallel with the first track (11) and the first peripheral track is located at the bottom of the first horizontal channel (1). The first horizontal driver is slidably arranged on the first peripheral track. The first transport trolley (12) is provided with a first horizontal secondary plate. The first horizontal driver is electrically connected to the control unit.

8. The vertical sealed transport structure for radioactive materials as described in claim 7, characterized in that, The second horizontal channel (2) is provided with a second horizontal driver (26) and a second peripheral track. The second peripheral track is arranged in parallel with the second track (21) and is located at the top of the second horizontal channel (2). The second transport trolley (22) is provided with a second horizontal secondary board (25). The second horizontal driver (26) is electrically connected to the control unit.

9. A vertical sealed transport structure for radioactive materials as described in claim 8, characterized in that, The second transport trolley (22) also includes two connecting rods (23) and a connector (24). One end of the connecting rod (23) is connected to the second transport trolley (22), and the other end of the two connecting rods (23) is fixedly connected to the connector (24). The second horizontal secondary plate (25) is disposed on the connector (24).

10. A vertical sealed transport structure for radioactive materials as described in claim 9, characterized in that, The cushioning element is made of sponge.

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