Ball path dredging device for high-temperature gas cooled reactor fuel loading and unloading system

Abstract

The embodiment of the invention provides a ball path dredging device for a high-temperature gas cooled reactor fuel loading and unloading system, and relates to the technical field of high-temperature gas cooled reactor fuel dredging. The ball path dredging device for the high-temperature gas cooled reactor fuel loading and unloading system comprises a box body, a coiling machine, a gas cylinder set, a tool head set, a filtering piece and a negative pressure piece, the box body is provided with a first installation cavity, a second installation cavity, a third installation cavity and a fourth installation cavity, the coiling machine is installed in the first installation cavity, and the gas cylinder set is installed in the second installation cavity; the tool head set is installed in the second installation cavity, the filtering piece is installed in the third installation cavity, and the negative pressure piece is installed in the fourth installation cavity. Key components such as a coiling machine, a gas cylinder group, a tool head group, a filtering piece and a negative pressure piece are intensively arranged in different mounting cavities in the same box body to form an integrated equipment framework. All the functional units are rapidly connected through preset gas paths, circuits and signal paths, and the operation process is remarkably simplified.

Description

Technical Field

[0001] This invention relates to the field of fuel unblocking in high-temperature gas-cooled reactors, and more specifically, to a ball path unblocking device for fuel loading and unloading systems in high-temperature gas-cooled reactors. Background Technology

[0002] High-Temperature Gas-cooled Reactors (HTGRs), as one of the core reactor types of Generation IV advanced nuclear energy systems, possess significant advantages such as inherent high safety, high thermal efficiency, and wide applicability. One of their key features is the use of spherical fuel elements (referred to as "fuel balls") for reactor operation, achieving continuous refueling without reactor shutdown through "online refueling." This means that new fuel is loaded and spent fuel is unloaded in real time during reactor operation, significantly improving plant availability and economic efficiency. In this loading and unloading system, fuel balls are circulated between the reactor core, loading and unloading devices, and storage containers via sealed pipelines. However, during long-term operation, factors such as mechanical vibration, pipeline deformation, dust accumulation, or fuel ball size deviations can easily lead to abnormal conditions such as blockage and accumulation of fuel balls in the transport pipelines. If such blockages are not addressed promptly, they will directly affect the normal operation of the reactor and may even lead to reactor shutdown for maintenance, seriously threatening the safety and economic efficiency of the nuclear power plant. Given the extremely high radioactivity of the fuel spheres and the fact that the operating environment is a high-radiation zone, personnel cannot intervene at close range. Therefore, specialized remote operation equipment is required to clear blockages in pipelines and retrieve the fuel spheres. Currently, some suction-type unblocking devices and prototypes have been applied in real-world scenarios, which can, to some extent, relieve minor blockages and recover fuel spheres.

[0003] Therefore, there is an urgent need for a new type of ball path clearing device that integrates multiple functions, has high reliability and good portability, in order to cope with complex and ever-changing on-site conditions and improve the safety, continuity and operation and maintenance efficiency of nuclear power plants. Summary of the Invention

[0004] This invention provides a ball path clearing device for a fuel loading and unloading system of a high-temperature gas-cooled reactor, which integrates multiple functions and has both high reliability and good portability.

[0005] The embodiments of the present invention can be implemented as follows: An embodiment of the present invention provides a ball path clearing device for a fuel loading and unloading system of a high-temperature gas-cooled reactor, comprising: The housing has a first mounting cavity, a second mounting cavity, a third mounting cavity, and a fourth mounting cavity; A winding machine, wherein the winding machine is installed in the first mounting cavity; A gas cylinder assembly, wherein the gas cylinder assembly is installed in the second mounting cavity; A tool head assembly, wherein the tool head assembly is mounted in the second mounting cavity; The filter element is installed in the third mounting cavity; A negative pressure component is installed in the fourth mounting cavity.

[0006] Optionally, the housing includes a first partition, a second partition, and a third partition. The first and second partitions are both arranged horizontally and are spaced apart vertically. The first partition is located above the second partition. A first mounting cavity is formed between the first partition and the inner wall of the housing. A second mounting cavity is formed between the first partition and the second partition. The third partition is arranged vertically, and its top edge is connected to the bottom surface of the second partition. A third mounting cavity is formed between one side of the third partition and the inner wall of the housing. A fourth mounting cavity is formed between the other side of the third partition and the inner wall of the housing.

[0007] Optionally, the side of the housing is provided with an opening, which communicates with the first mounting cavity. The suction hose enters the first mounting cavity through the opening, and the winding machine is used to feed and take back the suction hose.

[0008] Optionally, the winding machine includes a drum, a frame, and a drum drive. The drum and the drum drive are both mounted on the frame. The drum drive is connected to the drum and is used to drive the drum to rotate. The suction hose is wound around the drum.

[0009] Optionally, the winding machine further includes a tube arrangement component, a tube arrangement drive component, a guide rail, a speed regulating component, and a tube clamping guide wheel. The tube arrangement component and the tube arrangement drive component are connected, and the tube arrangement component is movably disposed on the guide rail. The tube arrangement component moves along the guide rail under the drive of the tube arrangement drive component. The position of the tube arrangement component corresponds to the position of the suction hose on the winding drum. The tube clamping guide wheel and the speed regulating component are both mounted on the tube arrangement component. The speed regulating component is connected to the guide wheel and is used to regulate the speed of the guide wheel. The guide wheel is used to guide the suction hose.

[0010] Optionally, the first partition, the second partition, and the third partition are all provided with wire holes, through which the air tube is connected to the gas cylinder assembly, and the suction hose is connected to the filter and / or the negative pressure component via the wire holes.

[0011] Optionally, the filter element includes a housing, a top cover, and a filter. The top cover and the top of the housing are connected to form a sealed container. The filter is installed inside the housing. The top cover has an air intake port, and the housing has an exhaust port. Gas enters the top cover through the air intake port, the filter filters the gas, and the filtered gas leaves the housing through the exhaust port.

[0012] Optionally, the negative pressure component includes a servo motor, a wind pressure housing, blades, and a silencer. The blades are disposed inside the wind pressure housing and are connected to the servo motor. The wind pressure housing has a negative pressure intake port and a negative pressure exhaust port. The negative pressure intake port and the exhaust port are connected. The silencer is installed at the negative pressure intake port and the negative pressure exhaust port.

[0013] Optionally, the tool head assembly includes a pulse blow-suction unblocking tool head, an impact unblocking tool head, and a cutting unblocking tool head. Each of the pulse blow-suction unblocking tool head, the impact unblocking tool head, and the cutting unblocking tool head is equipped with a camera. The pulse blow-suction unblocking tool head, the impact unblocking tool head, and the cutting unblocking tool head are used to connect to the suction hose under different working conditions.

[0014] Optionally, the cutting and unblocking tool head includes a first body, a cutting and unblocking connecting block, a cutting blade, and a cutting motor. The cutting and unblocking connecting block is connected to one end of the first body and is used to connect a suction hose. The cutting motor is installed at the other end of the first body, and the cutting blade is connected to the cutting motor.

[0015] The beneficial effects of the ball path unblocking device for a high-temperature gas-cooled reactor fuel loading and unloading system according to embodiments of the present invention include, for example: This ball-type unblocking device for a high-temperature gas-cooled reactor fuel loading and unloading system includes a housing, a coiler, a gas cylinder assembly, a tool head assembly, a filter, and a negative pressure component. The housing has a first, second, third, and fourth mounting chamber. The coiler is installed in the first mounting chamber, the gas cylinder assembly in the second mounting chamber, the tool head assembly in the second mounting chamber, the filter in the third mounting chamber, and the negative pressure component in the fourth mounting chamber. In use, key components such as the coiler, gas cylinder assembly, tool head assembly, filter, and negative pressure component are centrally arranged in different mounting chambers within the same housing, forming an integrated equipment architecture. The functional units are quickly connected via pre-set gas, electrical, and signal paths, eliminating the need for on-site disassembly or temporary connections. This significantly simplifies the operation process, avoids interface matching problems and operational delays associated with traditional multi-device combinations, and improves fault response speed and operational continuity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view structural schematic diagram of the ball path unblocking device for a high-temperature gas-cooled reactor fuel loading and unloading system provided in this embodiment. Figure 2 This is a second-view structural schematic diagram of the ball path unblocking device for a high-temperature gas-cooled reactor fuel loading and unloading system provided in this embodiment. Figure 3 This is a schematic diagram of the winding machine provided in this embodiment; Figure 4 This is a schematic diagram of the gas cylinder assembly provided in this embodiment; Figure 5 This is a first-view structural schematic diagram of the filter element provided in this embodiment; Figure 6 This is a structural schematic diagram of the filter element from a second perspective provided in this embodiment; Figure 7 This is a schematic diagram of the negative pressure component provided in this embodiment; Figure 8 This is a schematic diagram of the structure of the pulse blow-suction card release tool head provided in this embodiment; Figure 9 This is a schematic diagram of the impact card release tool head provided in this embodiment; Figure 10 This is a schematic diagram of the cutting and unblocking tool head provided in this embodiment.

[0018] Icons: 10-Box body; 101-First mounting cavity; 102-Second mounting cavity; 103-Third mounting cavity; 104-Fourth mounting cavity; 11-First partition; 12-Second partition; 13-Third partition; 14-Opening; 15-Wire hole; 20-Winder; 21-Drum; 22-Frame; 23-Drum drive; 24-Pipe arrangement component; 25-Pipe arrangement drive; 26-Guide rail; 27-Speed ​​adjustment component; 28-Pipe clamping guide wheel; 30-Cylinder assembly; 31-Cylinder body; 32-Cylinder base; 33-Cylinder opening; 40-Tool head assembly; 41-Pulse blow-suction unblocking tool head; 411-Second body; 412-Pulse blow-suction connecting block; 42-Impact unblocking tool head; 4 21-Third body; 422-Impact release connecting block; 423-Impact head; 424-Impact motor; 43-Cutting release tool head; 431-First body; 432-Cutting release connecting block; 433-Cutting blade; 434-Cutting motor; 44-Camera; 50-Filter; 51-Shell; 52-Top cover; 53-Filter; 54-Intake port; 55-Exhaust port; 56-Anti-radiation sealing ring; 57-Handle; 58-Intake port valve; 59-Exhaust port valve; 60-Negative pressure component; 61-Servo motor; 62-Wind pressure housing; 63-Blade; 64-Silencer; 65-Negative pressure intake port; 66-Negative pressure exhaust port; 70-Wheel; 80-Telescopic rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0025] High-Temperature Gas-cooled Reactors (HTGRs), as one of the core reactor types of Generation IV advanced nuclear energy systems, possess significant advantages such as inherent high safety, high thermal efficiency, and wide applicability. One of their key features is the use of spherical fuel elements (referred to as "fuel balls") for reactor operation, achieving continuous refueling without reactor shutdown through "online refueling." This means that new fuel is loaded and spent fuel is unloaded in real time during reactor operation, significantly improving plant availability and economic efficiency. In this loading and unloading system, fuel balls are circulated between the reactor core, loading and unloading devices, and storage containers via sealed pipelines. However, during long-term operation, factors such as mechanical vibration, pipeline deformation, dust accumulation, or fuel ball size deviations can easily lead to abnormal conditions such as blockage and accumulation of fuel balls in the transport pipelines. If such blockages are not addressed promptly, they will directly affect the normal operation of the reactor and may even lead to reactor shutdown for maintenance, seriously threatening the safety and economic efficiency of the nuclear power plant.

[0026] Given the extremely high radioactivity of the fuel briquettes and the fact that the operating environment is a high-radiation zone, personnel cannot intervene at close range. Therefore, specialized remote-operated equipment is necessary to clear blockages and retrieve fuel briquettes from clogged pipelines. Currently, some suction-type clearing devices and prototypes have been applied in real-world scenarios, achieving some degree of relief from minor blockages and fuel briquette recovery. However, existing technologies generally suffer from the following prominent problems: Dispersed functions and low integration: Existing clearing, briquette retrieval, and dust collection functions are usually performed by multiple independent devices, requiring multiple disassembly and reassembly on-site. This results in cumbersome operating procedures, complex interfaces, susceptibility to human error, and significantly extended fault handling time, making it difficult to meet the need for rapid response. Poor tool adaptability and limited unblocking capabilities: Most devices are only equipped with a single type of working head (such as an air blowing head or a suction head), suitable only for specific levels of blockage (such as minor blockages). They are often ineffective against moderate or severe blockages (such as hard jams caused by graphite dust compaction or mechanical interlocking), requiring the replacement of different equipment, leading to frequent on-site work interruptions and a low overall unblocking success rate. Lack of effective radiation protection measures: Some equipment lacks complete radioactive dust filtration and shielding structures, which may cause gas leakage containing radioactive graphite dust during negative pressure suction, posing a serious risk of environmental pollution and personnel radiation exposure. Simultaneously, the equipment maintenance process lacks sufficient protective design, increasing the difficulty and safety costs of subsequent operation and maintenance. Insufficient portability and operability: Existing devices are generally bulky and excessively heavy, making them difficult to transport via conventional plant passageways or elevators, limiting their flexible deployment between different units. Furthermore, the lack of visual monitoring means prevents operators from intuitively understanding the internal status of pipelines, relying mainly on experience-based judgment. This results in poor precision in remote control, affecting the scientific formulation and execution of de-carding strategies.

[0027] In summary, the current ball path clearing technology for high-temperature gas-cooled reactor fuel loading and unloading systems is still in a stage of development characterized by fragmented functions, low levels of intelligence, and insufficient safety assurance. There is an urgent need for a new type of ball path clearing device that integrates multiple functions, has graded deblocking capabilities, supports remote visual control, and combines high reliability with good portability, in order to cope with complex and ever-changing on-site conditions and improve the safety, continuity, and operation and maintenance efficiency of nuclear power plants.

[0028] Please refer to Figures 1-10 This embodiment provides a ball path unblocking device for a fuel loading and unloading system of a high-temperature gas-cooled reactor, which can effectively improve the technical problems mentioned above, integrate multiple functions, and has both high reliability and good portability.

[0029] Please refer to Figures 1-10This embodiment provides a ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system, including a housing 10, a coiler 20, a gas cylinder group 30, a tool head group 40, a filter element 50, and a negative pressure element 60. The housing 10 has a first mounting cavity 101, a second mounting cavity 102, a third mounting cavity 103, and a fourth mounting cavity 104. The coiler 20 is installed in the first mounting cavity 101, the gas cylinder group 30 is installed in the second mounting cavity 102, the tool head group 40 is installed in the second mounting cavity 102, the filter element 50 is installed in the third mounting cavity 103, and the negative pressure element 60 is installed in the fourth mounting cavity 104.

[0030] Specifically, the housing 10 is provided with a first partition 11, a second partition 12, and a third partition 13. The first partition 11 and the second partition 12 are both arranged horizontally and are spaced apart vertically. The first partition 11 is located above the second partition 12. A first mounting cavity 101 is formed between the first partition 11 and the inner wall of the housing 10. A second mounting cavity 102 is formed between the first partition 11 and the second partition 12. The third partition 13 is arranged vertically, and the top edge of the third partition 13 is connected to the bottom surface of the second partition 12. A third mounting cavity 103 is formed between one side of the third partition 13 and the inner wall of the housing 10. A fourth mounting cavity 104 is formed between the other side of the third partition 13 and the inner wall of the housing 10.

[0031] In this embodiment, the housing 10 has a rectangular structure. The first mounting cavity 101 and the second mounting cavity 102 are arranged sequentially from top to bottom, and the third mounting cavity 103 and the fourth mounting cavity 104 are arranged sequentially from left to right, with both the third mounting cavity 103 and the fourth mounting cavity 104 located below the second mounting cavity 102. The bottom of the housing 10 is equipped with wheels 70, including omnidirectional wheels and fixed wheels, and the omnidirectional wheels are equipped with foot brakes to facilitate the movement of the housing 10. A telescopic pull rod 80 is provided on the side of the housing 10 to facilitate the operation of the housing 10.

[0032] Specifically, the outer skin frame and skin of the case 10 are both made of aluminum alloy, thus ensuring the strength of the case 10 while maintaining its lightweight nature for easy carrying. The thickness of the case 10 is 5mm-10mm; in this embodiment, the thickness is 5mm. In other embodiments, the thickness of the case 10 is 6mm, 8mm, or 10mm, and no specific limitation is made here.

[0033] Specifically, the telescopic rod 80 is made of aluminum alloy. The casters and directional casters at the bottom of the housing 10 are also made of aluminum alloy.

[0034] In this embodiment, each functional component is housed in an independent installation cavity, achieving effective physical isolation (such as preventing interference from vibration, electromagnetic interference, or gas leaks) while maintaining good maintainability. For example, the filter element 50 can be completely extracted for cleaning or replacement, the gas cylinder assembly 30 can be easily filled or replaced, and the tool head assembly 40 can be flexibly configured according to working conditions. This modular design also reserves space for future functional upgrades, enhancing the adaptability and lifecycle management capabilities of the device. Furthermore, the housing 10 adopts a compartmentalized structure, rationally allocating internal space to make the overall layout compact and the center of gravity stable. Combined with the telescopic pull rod 80 and casters configured on the outside of the housing 10, the entire device can easily pass through standard elevators or narrow passages, making it suitable for rapid transfer between different areas of a nuclear power plant. This solves the problem of traditional large maintenance equipment being "inaccessible and immovable," significantly improving the flexibility of on-site deployment.

[0035] Furthermore, the side of the housing 10 is provided with an opening 14, which is connected to the first mounting cavity 101. The suction hose enters the first mounting cavity 101 through the opening 14, and the winding machine 20 is used to feed and take back the suction hose.

[0036] It should be noted that the winding machine 20 includes a drum 21, a frame 22, a drum drive 23, a tube arrangement component 24, a tube arrangement drive 25, a guide rail 26, a speed regulating component 27, and a tube clamping guide wheel 28. The drum 21 and the drum drive 23 are both mounted on the frame 22. The drum drive 23 is connected to the drum 21 and is used to drive the drum 21 to rotate, with the suction hose wound around it. The tube arrangement component 24 is connected to the tube arrangement drive 25 and is movably mounted on the guide rail 26. The tube arrangement component 24 moves along the guide rail 26 under the drive of the tube arrangement drive 25. The position of the tube arrangement component 24 corresponds to the position of the suction hose on the drum 21. The tube clamping guide wheel 28 and the speed regulating component 27 are both mounted on the tube arrangement component 24. The speed regulating component 27 is connected to the guide wheel and is used to adjust the speed of the guide wheel, which guides the suction hose.

[0037] In this embodiment, the winding machine 20 mainly performs the functions of feeding, taking in, and regularly winding the suction hose. Specifically, the suction hose enters the first mounting cavity 101 through the opening 14 and is wound onto the drum 21. The drum drive 23 drives the drum 21 to rotate, feeding the suction hose wound on the drum 21 into the plugging pipeline. The head of the suction hose wound on the drum 21 passes through the clamping guide wheel 28 for guidance. The pipe arrangement component 24 moves left and right on the guide rail 26 with the power provided by the pipe arrangement drive 25, so that the position of the clamping guide wheel 28 corresponds to the position of the suction hose on the drum 21, thereby allowing the suction hose to be regularly wound onto the drum 21. The speed regulating component 27 can adjust the speed of the clamping guide wheel 28.

[0038] Understandably, the clamp guide roller 28 can be adjusted to accommodate suction hoses of different diameters.

[0039] Furthermore, each of the first partition 11, the second partition 12, and the third partition 13 has a wire hole 15. The air tube is connected to the gas cylinder group 30 through the wire hole 15, and the suction hose is connected to the filter element 50 and / or the negative pressure element 60 through the wire hole 15.

[0040] It should be noted that the gas cylinder assembly 30 includes two industrial carbon fiber gas cylinders filled with nitrogen. The two cylinders are arranged side by side, each with a volume of 3L. The working pressure of each cylinder is 30MPa, and the maximum pressure resistance is 50MPa. The gas pipe uses constant pressure venting to provide high-pressure blowing.

[0041] Furthermore, the gas cylinder includes a gas cylinder body 31, a gas cylinder base 32, and a gas cylinder opening 33. The gas cylinder opening 33 is located at the head of the gas cylinder body 31 and is used to connect the gas pipe. The gas cylinder base 32 is disposed on the second partition 12, and the gas cylinder is snapped onto the gas cylinder base 32.

[0042] The filter element 50 includes a housing 51, a top cover 52, and a filter 53. The top cover 52 and the top of the housing 51 are connected to form a sealed container. The filter 53 is installed inside the housing 51. The top cover 52 is provided with an air intake 54, and the housing 51 is provided with an exhaust port 55. Gas enters the top cover 52 through the air intake 54, the filter 53 filters the gas, and the filtered gas leaves the housing 51 through the exhaust port 55.

[0043] Specifically, the outer casing 51 and the top cover 52 are sealed together by a radiation-proof sealing ring 56 to prevent dust leakage. Both the outer casing 51 and the top cover 52 are made of radiation-proof materials to prevent radiation corrosion.

[0044] The bottom of the top cover 52 is provided with two handles 57, which are spaced apart and are connected to the top cover 52 by bolts or welding to ensure strength.

[0045] During operation, gas containing graphite dust enters the upper cover 52 through the air intake 54, and the graphite dust in the gas is filtered through the filter 53. The filtered gas is then discharged through the exhaust port 55.

[0046] Furthermore, the air intake 54 is equipped with an air intake valve 58, and the air exhaust 55 is equipped with an air exhaust valve 59. By manually operating the air intake valve 58 and the air exhaust valve 59, the air intake 54 and the air exhaust 55 can be opened or closed.

[0047] In this embodiment, the filter element 50 can be removed from the third mounting cavity 103 to clean the filter 53.

[0048] It should also be noted that the negative pressure component 60 includes a servo motor 61, a wind pressure housing 62, blades 63, and a silencer 64. The blades 63 are disposed within the wind pressure housing 62 and connected to the servo motor 61. The wind pressure housing 62 has a negative pressure intake port 65 and a negative pressure outlet port 66, which are connected to the exhaust port 55. The silencer 64 is installed at both the negative pressure intake port 65 and the negative pressure outlet port 66. The negative pressure outlet port 66 is connected to the exhaust port of the equipment housing. The servo motor 61 is a servo high-pressure vortex blower. The servo motor 61 drives the blades 63 to rotate within the wind pressure housing 62, thereby generating negative pressure. This negative pressure draws away the gas discharged from the exhaust port 55 of the filter element 50 and discharges the gas through the negative pressure outlet port 66 and the exhaust port of the equipment housing.

[0049] Furthermore, the tool head assembly 40 includes a pulse blow-suction unblocking tool head 41, an impact unblocking tool head 42, and a cutting unblocking tool head 43. Each of these tool heads is equipped with a camera 44, and they are used to connect to the suction hose under different operating conditions. The camera 44 provides real-time feedback on the fuel ball's blockage status, allowing operators to accurately select the appropriate tool head and monitor the unblocking process in real time, ensuring smooth unblocking.

[0050] In this embodiment, the pulse blow-suction unblocking tool head 41 is used to unblock slightly stuck fuel balls. The pulse blow-suction unblocking tool head 41 includes a second body 411 and a pulse blow-suction connecting block 412. The pulse blow-suction connecting block 412 is connected to the end of the second body 411, and the pulse blow-suction connecting block 412 is connected to the suction hose. Upon contact with the fuel ball, pulsed high-pressure air is used to unblock the stuck fuel ball. The unblocked fuel ball is then adsorbed and removed through the middle position of the second body 411.

[0051] Furthermore, the impact unblocking tool head 42 is used to unblock moderately clogged fuel balls. The impact unblocking tool head 42 includes a third body 421, an impact unblocking connecting block 422, an impact head 423, and an impact motor 424. The impact unblocking connecting block 422 is located at one end of the third body 421 and is used to connect to the suction hose. The impact motor 424 and the impact head 423 are both installed at the other end of the third body 421 and are connected. Upon contact with the fuel ball, the impact motor 424 drives the impact head 423 to impact the fuel ball to unblock it, causing the clogged fuel ball to loosen under the impact of the impact head 423. Then, negative pressure is used to adsorb and remove the unblocked fuel ball.

[0052] Furthermore, the cutting and unblocking tool head 43 includes a first body 431, a cutting and unblocking connecting block 432, a cutting blade 433, and a cutting motor 434. The cutting and unblocking connecting block 432 is connected to one end of the first body 431 and is used to connect the suction hose. The cutting motor 434 is installed at the other end of the first body 431, and the cutting blade 433 is connected to the cutting motor 434. When it comes into contact with the fuel ball, the cutting motor 434 drives the cutting blade 433 to cut the stuck fuel ball, thereby cutting the stuck fuel ball into pieces. Then, negative pressure is used to adsorb and remove the unblocked fuel ball.

[0053] In summary, this invention provides a ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system. This device includes a housing 10, a coiler 20, a gas cylinder assembly 30, a tool head assembly 40, a filter element 50, and a negative pressure component 60. The housing 10 has a first mounting cavity 101, a second mounting cavity 102, a third mounting cavity 103, and a fourth mounting cavity 104. The coiler 20 is installed in the first mounting cavity 101, the gas cylinder assembly 30 in the second mounting cavity 102, the tool head assembly 40 in the second mounting cavity 102, the filter element 50 in the third mounting cavity 103, and the negative pressure component 60 in the fourth mounting cavity 104. In use, the key components such as the coiler 20, the gas cylinder assembly 30, the tool head assembly 40, the filter element 50, and the negative pressure component 60 are centrally arranged in different mounting cavities within the same housing 10, forming an integrated equipment architecture. Each functional unit can be quickly connected through preset air, circuit and signal paths. No on-site disassembly or temporary connection is required during use, which greatly simplifies the operation process, avoids the interface matching problems and operation delays caused by traditional multi-device combinations, and improves fault response speed and operation continuity.

[0054] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system, characterized in that, include: The housing (10) has a first mounting cavity (101), a second mounting cavity (102), a third mounting cavity (103) and a fourth mounting cavity (104); Winding machine (20), the winding machine (20) is installed in the first mounting cavity (101); A gas cylinder assembly (30) is installed in the second mounting cavity (102); Tool head assembly (40), the tool head assembly (40) is installed in the second mounting cavity (102); A filter element (50) is installed in the third mounting cavity (103); Negative pressure component (60) is installed in the fourth mounting cavity (104).

2. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 1, characterized in that, The housing (10) is provided with a first partition (11), a second partition (12), and a third partition (13). The first partition (11) and the second partition (12) are both arranged horizontally and are spaced apart vertically. The first partition (11) is located above the second partition (12). The first mounting cavity (101) is formed between the first partition (11) and the inner wall of the housing (10). A second mounting cavity (102) is formed between the partition (11) and the second partition (12). The third partition (13) is arranged in a vertical direction, and the top edge of the third partition (13) is connected to the bottom surface of the second partition (12). A third mounting cavity (103) is formed between one side of the third partition (13) and the inner wall of the box (10). A fourth mounting cavity (104) is formed between the other side of the third partition (13) and the inner wall of the box (10).

3. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 1, characterized in that, The side of the housing (10) is provided with an opening (14), which is connected to the first mounting cavity (101). The suction hose enters the first mounting cavity (101) through the opening (14), and the winding machine (20) is used to feed and take back the suction hose.

4. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 1, characterized in that, The winding machine (20) includes a drum (21), a frame (22) and a drum drive (23). The drum (21) and the drum drive (23) are both mounted on the frame (22). The drum drive (23) is connected to the drum (21) and is used to drive the drum (21) to rotate. The suction hose is wound around the drum (21).

5. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 4, characterized in that, The winding machine (20) further includes a tube arrangement component (24), a tube arrangement drive component (25), a guide rail (26), a speed regulating component (27), and a tube clamping guide wheel (28). The tube arrangement component (24) is connected to the tube arrangement drive component (25), and the tube arrangement component (24) is movably disposed on the guide rail (26). The tube arrangement component (24) moves along the guide rail (26) under the drive of the tube arrangement drive component (25). The position of the tube arrangement component (24) corresponds to the position of the suction hose on the drum (21). The tube clamping guide wheel (28) and the speed regulating component (27) are both installed on the tube arrangement component (24). The speed regulating component (27) is connected to the guide wheel and is used to regulate the speed of the guide wheel. The guide wheel is used to guide the suction hose.

6. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 2, characterized in that, The first partition (11), the second partition (12) and the third partition (13) are all provided with wire holes (15). The air tube is connected to the gas cylinder group (30) through the wire holes (15), and the suction hose is connected to the filter element (50) and / or the negative pressure element (60) through the wire holes (15).

7. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 1, characterized in that, The filter element (50) includes a housing (51), a top cover (52), and a filter (53). The top cover (52) and the top of the housing (51) are connected to form a sealed container. The filter (53) is installed inside the housing (51). The top cover (52) is provided with an air intake (54), and the housing (51) is provided with an exhaust port (55). Gas enters the top cover (52) through the air intake (54), the filter (53) filters the gas, and the filtered gas leaves the housing (51) through the exhaust port (55).

8. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 7, characterized in that, The negative pressure component (60) includes a servo motor (61), a wind pressure housing (62), blades (63), and a silencer (64). The blades (63) are disposed inside the wind pressure housing (62) and are connected to the servo motor (61). The wind pressure housing (62) is provided with a negative pressure intake port (65) and a negative pressure exhaust port (66). The negative pressure intake port (65) and the exhaust port (55) are connected. The silencer (64) is installed at the negative pressure intake port (65) and the negative pressure exhaust port (66).

9. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 1, characterized in that, The tool head assembly (40) includes a pulse blow-suction card release tool head (41), an impact card release tool head (42), and a cutting card release tool head (43). Each of the pulse blow-suction card release tool head (41), the impact card release tool head (42), and the cutting card release tool head (43) is equipped with a camera (44). The pulse blow-suction card release tool head (41), the impact card release tool head (42), and the cutting card release tool head (43) are used to connect to the suction hose under different working conditions.

10. The ball path clearing device for a high-temperature gas-cooled reactor fuel loading and unloading system according to claim 9, characterized in that, The cutting and unblocking tool head (43) includes a first body (431), a cutting and unblocking connecting block (432), a cutting blade (433), and a cutting motor (434). The cutting and unblocking connecting block (432) is connected to one end of the first body (431) and is used to connect a suction hose. The cutting motor (434) is installed at the other end of the first body (431), and the cutting blade (433) is connected to the cutting motor (434).

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