Method and system for dredging ball path of high-temperature gas cooled reactor fuel loading and unloading system

Abstract

The invention discloses a method and system for dredging a ball path of a high-temperature gas cooled reactor fuel loading and unloading system, and relates to the technical field of nuclear fuel transportation systems.The method comprises the steps that an operation box is installed at the blocked position of a spent fuel loading and unloading system, and a sealed isolation environment is formed; the suction filtering module is started, and the suction filtering module provides suction airflow power for the whole system and carries out negative pressure purification on the operation box; the pipe conveying and coiling module is started to convey the suction hose to the clamping and blocking position to suck the clamping and blocking element, the reverser module is started to enable the suction hose to reverse, and the clamping and blocking element is transferred to the collecting module. By means of the operation box structure and the sealing system which are specially designed, reliable sealing of the clamping and blocking position is achieved; effective control of radioactive substances is ensured through accurate negative pressure control and airflow distribution; through the adjustable suction system and the hose positioning mechanism, accurate dredging of the blocking ball is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of nuclear fuel transportation systems, in particular to a method and system for clearing ball paths in a high-temperature gas-cooled reactor fuel loading and unloading system. Background Art

[0002] The high temperature gas-cooled reactor of a nuclear power plant is one of the important choices for the fourth generation of advanced nuclear energy systems. It uses spherical fuel elements to achieve a continuous loading and unloading operation mode. During the operation of the high temperature gas-cooled reactor, the spherical fuel elements fall in the vertical pipeline by gravity and are circulated and transported through the fuel loading and unloading system. However, due to the presence of trace graphite powder on the surface of the spherical fuel elements and the wear of the inner wall of the pipeline during long-term operation, the fuel balls may become stuck in the transportation channel. Traditional treatment methods mainly rely on airflow impact or mechanical vibration, which have the following limitations: First, it is difficult to accurately control the position and strength of simple airflow impact, which may cause aggravated blockage; second, mechanical vibration may cause unnecessary stress on the pipeline system and affect the structural integrity of the system; third, the existing treatment methods lack effective dust collection and treatment mechanisms, which may lead to secondary contamination of radioactive materials.

[0003] In response to the above problems, research institutions at home and abroad have proposed a variety of improvement plans. For example, a multi-stage airflow distribution system is used to improve the efficiency of dredging, or an intelligent control system is used to optimize the processing parameters. However, these solutions still have significant shortcomings: on the one hand, there is a lack of precise control and real-time monitoring capabilities of the blockage treatment process, and it is difficult to adjust the treatment strategy according to the specific blockage situation; on the other hand, the existing systems generally have problems such as insufficient sealing performance and unstable negative pressure control, which makes it difficult to ensure effective protection of radioactive materials. At the same time, most systems use fixed processing devices, which lack mobility and adaptability, and it is difficult to cope with blockages in different locations and types. In addition, existing technologies often treat dredging and dust removal as independent processes, lacking a systematic integrated solution, resulting in low processing efficiency and complex operation.

[0004] The existing ball path dredging technology for high temperature gas-cooled reactor fuel loading and unloading systems has technical problems such as insufficient precise control, poor sealing performance, and unsatisfactory dust removal effect. The present invention provides a method and system for dredging the ball path of a high temperature gas-cooled reactor fuel loading and unloading system, which effectively solves the above problems through technical means such as sealing isolation, negative pressure control, and multi-circuit collaborative work, and belongs to the nuclear fuel transportation system maintenance technology in the field of nuclear engineering technology. Summary of the invention

[0005] In view of the above-mentioned problems, the present invention is proposed.

[0006] Therefore, the present invention provides a method and system for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system, which can solve the problems mentioned in the background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: A method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system, comprising: S1: installing an operation box at a blocked position of the spent fuel loading and unloading system to form a sealed and isolated environment;

[0008] S2: starting the suction filtration module, which provides power for the suction airflow for the entire system and performs negative pressure purification on the operation box;

[0009] S3: Start the pipe delivery coil module to deliver the suction hose to the blocked location to absorb the blocked element, start the reversing module to reverse the suction hose, and transport the blocked element to the collection module.

[0010] As a preferred solution of the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system of the present invention, the method includes: installing an operating box at the blocked part of the spent fuel loading and unloading system to form a sealed isolation environment, including the following steps:

[0011] Cleaning the outer wall of the pipe where the spent fuel loading and unloading system is blocked;

[0012] Aligning and positioning the sealing interface of the operation box with the outer wall of the pipeline at the blocked position of the spent fuel loading and unloading system;

[0013] The operation box is fixed on the outer wall of the pipeline by a sealing fixing device, and the sealing fixing device includes a sealing ring and a fastener.

[0014] As a preferred solution of the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system of the present invention, wherein: the operation box is fixed to the outer wall of the pipeline by a sealing fixing device, and the sealing fixing device includes a sealing ring and a fastener, and includes the following steps:

[0015] Installing the sealing ring in the sealing interface groove of the operation box;

[0016] The fasteners are passed through the fixing holes of the operation box in sequence in a circular evenly distributed manner, and if it is detected that the installation torque of any fastener is less than a preset torque value, the installation of the fastener is re-executed;

[0017] The fasteners are tightened in a cross-diagonal order until the compression of the sealing ring reaches a preset compression amount. If it is detected that the local compression of the sealing ring exceeds the preset compression upper limit, the fasteners at the corresponding positions are loosened and readjusted.

[0018] As a preferred solution of the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to the present invention, the starting suction filter module provides the power of the suction airflow for the entire system and performs negative pressure purification on the operation box, including the following steps:

[0019] Start the airflow power device of the suction and filtration module, and provide suction airflow to the ball path suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit through the suction and filtration module;

[0020] Performing negative pressure suction on the operation box until the pressure value in the operation box drops to a preset negative pressure value;

[0021] The suction filtration module operates continuously and maintains the system airflow dynamics through the four circuits, wherein the negative pressure dust removal circuit of the operation box module continuously maintains the negative pressure environment of the operation box.

[0022] As a preferred solution of the method for clearing the ball path of a high-temperature gas-cooled reactor fuel loading and unloading system of the present invention, wherein: the airflow power device for starting the suction and filtering module provides suction airflow for the ball path suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit through the suction and filtering module, including the following steps:

[0023] Start the airflow power device of the suction filter module, and sequentially detect the airflow parameters of the ball suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit. If the airflow parameter of any circuit does not reach the preset startup parameter, restart the airflow power device of the circuit;

[0024] Adjust the air flow distribution valve of the suction filter module so that the air flow rate of the ball suction main circuit is greater than the air flow rate of the dust removal circuit of the tube coil module, the dust removal circuit of the commutator module, and the negative pressure dust removal circuit of the operation box module. If it is detected that the air flow rate of the ball suction main circuit is less than a preset flow threshold, increase the opening of the air flow distribution valve;

[0025] The airflows of the four circuits are filtered and purified by the filtering device of the suction filtering module. If it is detected that the filter resistance of any circuit exceeds a preset resistance value, the spare filter is switched.

[0026] As a preferred solution of the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to the present invention, wherein: the starting pipe delivery coil module sends the suction hose to the blocked location to absorb the blocked element, and the starting reversing module reverses the suction hose to transfer the blocked element to the collection module, including the following steps:

[0027] Starting the pipe delivery coil module to control the forward speed and posture of the suction hose;

[0028] Send the suction hose to the blocked part to suction the blocked component;

[0029] The reversing module is activated to change the conveying direction of the suction hose, and the blocking element is conveyed to the collecting module.

[0030] As a preferred solution of the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system of the present invention, wherein: the distance between the suction hose and the blocking element is detected by a position sensor at the end of the suction hose, and if it is detected that the distance is greater than a preset suction distance, the suction hose is continuously controlled to move forward;

[0031] When the suction hose reaches the preset suction position, the suction airflow intensity of the ball suction main circuit is increased, and if it is detected that the position of the blocking element has changed but has not completely left the blocking position, the suction airflow intensity is further increased until the preset maximum airflow intensity is reached;

[0032] The movement state of the blocking element in the suction hose is monitored, and if it is detected that the blocking element completely enters the suction hose, the airflow intensity of the ball path suction main circuit is reduced to a preset transport airflow intensity.

[0033] To further solve the above technical problems, the present invention provides the following technical solutions: A system for clearing the ball path of a high-temperature gas-cooled reactor fuel loading and unloading system, comprising: a sealed isolation module, used to install an operation box at a blocked position of the spent fuel loading and unloading system to form a sealed isolation environment;

[0034] An airflow purification module, used to start the suction filtration module, the suction filtration module provides the power of suction airflow for the whole system, and performs negative pressure purification on the operation box;

[0035] The conveying and processing module is used to start the pipe conveying coil module to convey the suction hose to the blocked place to absorb the blocked element, start the reversing module to reverse the suction hose, and transport the blocked element to the collection module.

[0036] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and is characterized in that when the processor executes the computer program, the steps of the method for clearing the ball path of a high-temperature gas-cooled reactor fuel loading and unloading system as described above are implemented.

[0037] A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the method for clearing the ball path of a high-temperature gas-cooled reactor fuel loading and unloading system as described above are implemented.

[0038] The beneficial effects of the present invention are as follows: by installing a specially designed operating box at the blocking position and adopting a combination of sealing rings and fasteners to form a reliable sealed isolation environment. This design not only prevents the leakage of radioactive substances, but also provides a safe working space for subsequent dredging operations, effectively reducing the risk of environmental pollution; by combining the suction hose with the pipe delivery coil module, the suction position and force can be accurately controlled. By real-time monitoring of the position of the suction hose and the state of the blocked components, combined with adjustable airflow intensity, the controllability and effectiveness of the dredging process are ensured, avoiding the problem of aggravated blockage that may be caused by traditional methods; the suction and filtration module simultaneously provides airflow power for four circuits (the main circuit of the ball suction, the dust removal circuit of the tube coil module, the dust removal circuit of the commutator module, and the negative pressure dust removal circuit of the operation box module), realizing the organic unity of the dredging, transportation, and dust removal functions, and significantly improving the system operation efficiency; utilizing the synergistic effect of the negative pressure environment and multiple dust removal circuits, the effective collection and filtration of the radioactive dust generated during the operation is realized, preventing secondary pollution and ensuring the cleanliness of the operating environment; through modular design and flexible reversing mechanism, the system can adapt to different positions and types of blockages, and has strong versatility and practicality; the entire system adopts multiple protection measures, including sealed isolation, negative pressure control, real-time monitoring, etc., forming a complete safety guarantee system to protect the safety of operators and the environment to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0040] Figure 1 A block diagram of the system proposed by the present invention;

[0041] Figure 2 A flow chart of the method proposed by the present invention;

[0042] Figure 3 Fluid process system diagram proposed by the present invention

[0043] Figure 4 A diagram of a computer device proposed for the present invention. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Example 1, reference Figure 1 to Figure 3 , which is an embodiment of the present invention, provides a method for clearing a ball path of a high temperature gas-cooled reactor fuel loading and unloading system, comprising:

[0047] S1: Install an operating box at the blocked part of the spent fuel loading and unloading system to form a sealed and isolated environment;

[0048] S11: cleaning the outer wall of the pipe where the spent fuel loading and unloading system is blocked;

[0049] It should be noted that in the actual operating environment of the high-temperature gas-cooled reactor fuel loading and unloading system, graphite powder will be generated during the transportation of spherical fuel elements, and the particles generated by the wear of these powders and pipelines will accumulate on the pipeline surface. Especially at the blocked position, due to the repeated friction of the fuel balls, a lot of radioactive dust is attached to the outer wall of the pipeline at this location. This surface contaminant will seriously affect the installation effect of the subsequent sealing device: first, the dust will reduce the contact quality between the sealing ring and the pipeline surface, forming a tiny leakage channel; second, some dust may fall off during the installation process, causing local environmental pollution; third, surface contaminants will affect the geometric dimensional accuracy of the sealing interface, resulting in uneven sealing compression. Step S11 not only provides a clean sealing installation base surface by cleaning the outer wall of the pipeline, but also effectively collects and controls the radioactive dust generated during the cleaning process. This step uses specially designed cleaning tools and procedures to ensure that the cleaning process does not cause additional damage to the pipeline surface, and at the same time prevents the spread of dust by means such as negative pressure suction. Compared with the existing technology, this treatment method significantly improves the reliability of subsequent sealing installation while ensuring construction safety. Especially in radioactive environments, this pretreatment method establishes a reliable sealing foundation for the entire dredging operation and effectively prevents the risk of leakage of radioactive materials. This is an effect that cannot be achieved by simple mechanical cleaning or direct installation of sealing devices without treatment.

[0050] S12: aligning and positioning the sealing interface of the operation box with the outer wall of the pipe where the spent fuel loading and unloading system is blocked;

[0051] It should be noted that in the actual application scenario of the high-temperature gas-cooled reactor fuel loading and unloading system, the blockage treatment process involves the control of radioactive materials, and a reliable sealed isolation environment needs to be established. Traditional treatment methods often use simple external covers or temporary sealing measures, which have multiple technical defects: the incomplete contact between the sealing ring and the pipeline surface makes it difficult to maintain a negative pressure environment; the unreasonable layout of fasteners causes uneven distribution of sealing pressure; and the temporary sealing structure is prone to loosening when it vibrates violently. Step S12 achieves all-round sealing of the blockage through a specially designed operating box structure, combined with precisely matched sealing ring materials and specifications. The fastener layout used in this step not only ensures sufficient sealing compression force, but also avoids pipeline stress concentration that may be caused by over-tightening. In particular, in practical applications, this sealing solution can adapt to slight deformations and unevenness of the pipeline surface, and maintain a continuous sealing effect through the elastic deformation characteristics of the sealing ring. While ensuring the sealing performance, this design also reserves sufficient working space for the suction hose operation, so that the dredging operation can be carried out in a controllable negative pressure environment. Compared with existing technologies, this solution effectively solves problems such as unstable sealing performance and limited operating space through an innovative combination of structural optimization and material selection, providing a safe and stable working environment for the entire dredging process.

[0052] S13: fixing the operation box on the outer wall of the pipeline by a sealing fixing device, wherein the sealing fixing device includes a sealing ring and a fastener;

[0053] S131: Installing the sealing ring in the sealing interface groove of the operation box;

[0054] S132: Passing the fasteners through the fixing holes of the operation box in sequence in a circular evenly distributed manner, and if it is detected that the installation torque of any fastener is less than a preset torque value, re-installing the fastener;

[0055] S133: Tighten the fasteners in a cross-diagonal order until the compression of the sealing ring reaches a preset compression amount. If it is detected that the local compression of the sealing ring exceeds the preset compression upper limit, loosen the fasteners at the corresponding positions and readjust.

[0056] It should be noted that in the process of handling the blockage of the fuel loading and unloading system of the high-temperature gas-cooled reactor, the control of radioactive dust is a key technical difficulty. The traditional treatment method has the following problems: a single suction system is difficult to establish a stable negative pressure environment; a simple airflow channel is prone to cause dead corners, resulting in dust accumulation in some areas; inaccurate negative pressure control may cause airflow turbulence, which in turn aggravates the spread of dust. Step S13 achieves precise control of the negative pressure environment in the operation box through the coordinated work of a specially designed hose connection method and a suction filter module. The suction system used in this step has an adjustable airflow intensity, which can dynamically adjust the negative pressure level according to actual conditions to avoid excessive negative pressure causing sealing failure or too low negative pressure affecting the dust removal effect. In particular, in practical applications, the negative pressure control scheme ensures uniform airflow distribution in the operation box through a reasonably designed airflow channel, effectively avoiding the accumulation of dust in local areas. This design not only provides a stable negative pressure environment to prevent the leakage of radioactive materials, but also creates ideal working conditions for subsequent suction and dredging operations. Compared with the existing technology, this solution effectively solves problems such as environmental pollution control and operational safety through precise negative pressure control and optimized airflow organization, providing reliable technical support for blockage treatment.

[0057] S2: starting the suction filtration module, which provides power for the suction airflow for the entire system and performs negative pressure purification on the operation box;

[0058] S21: Start the airflow power device of the suction and filtration module, and provide suction airflow to the ball path suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit through the suction and filtration module;

[0059] S211: Start the airflow power device of the suction filter module, and sequentially detect the airflow parameters of the ball suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit. If the airflow parameter of any circuit does not reach the preset start parameter, restart the airflow power device of the circuit;

[0060] S212: adjusting the airflow distribution valve of the suction filter module so that the airflow of the ball suction main circuit is greater than the airflow of the dust removal circuit of the tube coil module, the dust removal circuit of the commutator module, and the negative pressure dust removal circuit of the operation box module. If it is detected that the airflow of the ball suction main circuit is less than a preset flow threshold, increasing the opening of the airflow distribution valve;

[0061] S213: The airflows of the four circuits are filtered and purified by the filter device of the suction filter module. If it is detected that the filter resistance of any circuit exceeds a preset resistance value, the backup filter is switched.

[0062] It should be noted that in the treatment of blockage in the fuel loading and unloading system of the high-temperature gas-cooled reactor, accurate positioning and control of the suction hose is a key technical difficulty. The main problems with the traditional treatment method include: inaccurate positioning of the suction tool leads to deviation in the direction of the force; the large blind area of ​​the operation increases the risk of misoperation; the lack of an effective position feedback mechanism makes it difficult for operators to grasp the actual working status. Step S21 realizes the accurate delivery and positioning of the suction hose through the precise control function of the delivery coil module. The coil mechanism used in this step can control the delivery speed and direction of the hose, and ensure that it reaches the top of the jammed ball accurately by real-time monitoring of the hose position status. In particular, in practical applications, this positioning method takes into account the spatial characteristics of the pipe bending and jamming position, and through the flexible characteristics of the hose, it can adapt to complex pipeline environments without damaging the pipe wall. This design not only improves the accuracy of the dredging operation, but also maximizes the effect of the suction force, avoiding the problem of low suction efficiency caused by position deviation in traditional methods. Compared with the existing technology, this solution effectively solves technical problems such as blind operation and positioning difficulties through precise position control and real-time status monitoring, and provides an accurate point of action for subsequent suction and dredging.

[0063] S22: performing negative pressure suction on the operation box until the pressure value in the operation box drops to a preset negative pressure value;

[0064] It should be noted that in the process of handling the stuck ball in the fuel loading and unloading system of the high-temperature gas-cooled reactor, the precise control of the suction force is the key factor in determining the dredging effect. The traditional treatment method has the following technical defects: the suction force is difficult to adjust accurately, too much will damage the fuel ball or aggravate the jam, too little will not be able to effectively dredge; lack of real-time adjustment mechanism, unable to dynamically adjust the force according to the jam situation; single suction mode is difficult to cope with different types of jam conditions. Step S22 achieves precise control of the suction force through an adjustable airflow device. The air pressure regulation system used in this step can monitor and adjust the airflow parameters in real time, and dynamically optimize the suction force according to the force feedback of the jammed ball. In particular, in practical applications, this control method can gradually increase the suction force while protecting the integrity of the fuel ball, avoiding secondary damage or aggravated jam caused by sudden force increase. This design not only improves the controllability and safety of dredging, but also can flexibly adjust the processing strategy according to different types of jams, thereby improving the adaptability of the system. Compared with the existing technology, this solution effectively solves the problems of difficult to control suction force and unstable dredging effect through precise force control and dynamic parameter adjustment, providing technical guarantee for safe and efficient blockage treatment.

[0065] S23: The suction filtration module continues to operate and maintains the system airflow dynamics through the four circuits, wherein the negative pressure dust removal circuit of the operation box module continuously maintains the negative pressure environment of the operation box.

[0066] It should be noted that in the process of handling the jam of the high-temperature gas-cooled reactor fuel loading and unloading system, the safe escape and smooth extraction of the sphere is the final key link. There are many technical difficulties in the traditional treatment method: the escape process of the jammed ball lacks precise control, which is easy to cause violent shaking or collision; the movement speed of the hose is difficult to synchronize with the escape state of the ball, which may cause re-jamming or falling; there is a lack of coordination and control mechanism for the entire escape process. Step S23 achieves the smooth escape of the jammed ball through the coordinated cooperation of suction and hose movement. The control system used in this step can dynamically adjust the lifting speed and suction force of the hose according to the force state and displacement feedback of the ball to ensure that the entire escape process is always in a controllable state. In particular, in practical applications, this coordination method maintains stable control of the sphere through the combination of slow upward movement of the hose and continuous suction, while avoiding the impact damage that may be caused by traditional rapid escape. This design not only ensures the integrity of the fuel ball, but also minimizes the risk of secondary pollution, and achieves a safe and controllable dredging effect. Compared with the existing technology, this solution effectively solves the problems of unstable escape process and insufficient control accuracy through precise motion control and coordinated force coordination, providing a reliable technical means for the safe unblocking of stuck balls.

[0067] S3: Start the pipe delivery coil module to deliver the suction hose to the blocked location to absorb the blocked element, start the reversing module to reverse the suction hose, and transport the blocked element to the collection module.

[0068] S31: Start the pipe delivery coil module to control the forward speed and posture of the suction hose;

[0069] It should be noted that in the treatment of stuck balls in the fuel loading and unloading system of high-temperature gas-cooled reactors, the recovery and transportation of the unblocked balls is an important safety link. The traditional treatment method has the following technical defects: the balls are prone to fall off or contamination spread during the transportation process; the connection between the collection device and the hose is poorly sealed, and there is a risk of leakage; the waste collection system has a simple structure, and it is difficult to ensure the complete recovery and radiation protection of the balls. Step S31 achieves the safe transportation of the stuck balls through the seamless connection of the specially designed waste collection device and the suction hose. The connection mechanism used in this step has reliable sealing performance, ensuring that the balls are in a fully closed environment during the transportation process. In particular, in practical applications, this collection method can safely receive high-speed moving balls through a carefully designed collection cavity structure and buffer mechanism, avoid collision damage, and maintain a continuous and stable negative pressure environment. This design not only realizes the controllable transfer of radioactive materials, but also ensures the radiation protection safety of operators through a reasonable structural layout. Compared with existing technologies, this solution effectively solves problems such as leakage risks and operational safety in the waste collection process through optimized collection system design and reliable sealing transfer mechanism, providing safety guarantees for the final link of the entire dredging process.

[0070] S32: Send the suction hose to the blocked location to suction the blocked component;

[0071] S321: detecting the distance between the suction hose and the blocking element by means of a position sensor at the end of the suction hose, and if it is detected that the distance is greater than a preset suction distance, continuing to control the suction hose to move forward;

[0072] S322: when the suction hose reaches the preset suction position, increasing the suction airflow intensity of the ball suction main circuit, and if it is detected that the position of the blocking element has changed but has not completely left the blocking position, further increasing the suction airflow intensity until reaching the preset maximum airflow intensity;

[0073] S323: Monitor the movement state of the blocking element in the suction hose. If it is detected that the blocking element completely enters the suction hose, reduce the airflow intensity of the ball suction main circuit to a preset transport airflow intensity.

[0074] It should be noted that in the later stage of the blockage treatment of the fuel loading and unloading system of the high-temperature gas-cooled reactor, the safe removal and pollution control of the equipment are key links. The traditional treatment method has the following technical defects: the removal process is prone to secondary pollution; incomplete cleaning leads to accumulation of residues; the surface decontamination effect of the equipment is not ideal, affecting subsequent use; improper repair of the pipeline connection affects the sealing of the system. Step S32 achieves post-treatment pollution control through standardized dismantling procedures and systematic cleaning solutions. The cleaning method used in this step can effectively remove the residual radioactive substances inside the equipment and ensure that the equipment can be safely recycled and reused. Especially in practical applications, this post-treatment method can timely discover and eliminate potential sealing hazards through meticulous inspection and repair of pipeline connections, avoiding leakage in subsequent operation. This design not only ensures the thoroughness of cleaning, but also ensures the long-term reliability of the system through professional repair methods. Compared with the existing technology, this solution effectively solves the problems of incomplete equipment cleaning and unstable repair quality through a complete post-processing process and reliable repair technology, providing technical guarantee for the continuous and safe operation of the system.

[0075] S33: Start the reversing module to change the conveying direction of the suction hose, and convey the blocking element to the collection module.

[0076] It should be noted that after the blocking treatment of the high-temperature gas-cooled reactor fuel loading and unloading system is completed, the safe disposal of radioactive waste is the final important link. The traditional treatment method has the following technical defects: temporary packaging is prone to leakage of radioactive materials; the radiation protection measures during the transportation process are not perfect; the classification and identification of waste before storage are not standardized, which increases the difficulty of later treatment; and there is a lack of complete transportation traceability records. Step S33 achieves the safe disposal of radioactive waste through professional sealing packaging technology and standardized transportation processes. The sealing packaging solution adopted in this step has multiple protection characteristics to ensure that radioactive materials will not leak during transportation and storage. Especially in practical applications, this disposal method realizes the full traceability management of waste through strict classification and identification and a complete recording system, which is convenient for unified treatment in the later stage. This design not only ensures the safety of radioactive waste disposal, but also reduces the operational risks of subsequent treatment through standardized management processes. Compared with the existing technology, this solution effectively solves the problems of leakage risk and traceability management during the transportation of radioactive waste through reliable sealing technology and a complete management system, and provides technical support for the safe end of the entire treatment process.

[0077] In summary, the present invention forms a reliable sealed isolation environment by installing a specially designed operating box at the blocked location and adopting a combination of sealing rings and fasteners. This design not only prevents the leakage of radioactive substances, but also provides a safe working space for subsequent dredging operations, effectively reducing the risk of environmental pollution; the combination of the suction hose and the delivery coil module can accurately control the suction position and force. By real-time monitoring of the position of the suction hose and the state of the blocked components, combined with adjustable airflow intensity, the controllability and effectiveness of the dredging process are ensured, avoiding the problem of aggravated blockage that may be caused by traditional methods; the suction and filtration module simultaneously provides airflow power for four circuits (the main circuit of the ball suction, the dust removal circuit of the tube coil module, the dust removal circuit of the commutator module, and the negative pressure dust removal circuit of the operation box module), realizing the organic unity of the dredging, transportation, and dust removal functions, and significantly improving the system operation efficiency; utilizing the synergistic effect of the negative pressure environment and multiple dust removal circuits, the effective collection and filtration of the radioactive dust generated during the operation is realized, preventing secondary pollution and ensuring the cleanliness of the operating environment; through modular design and flexible reversing mechanism, the system can adapt to different positions and types of blockages, and has strong versatility and practicality; the entire system adopts multiple protection measures, including sealed isolation, negative pressure control, real-time monitoring, etc., forming a complete safety guarantee system to protect the safety of operators and the environment to the greatest extent.

[0078] Embodiment 2 is an embodiment of the present invention, which provides a ball path clearing system for a high-temperature gas-cooled reactor fuel loading and unloading system, including: a sealing isolation module, used to install an operating box at a blocked location of the spent fuel loading and unloading system to form a sealed isolation environment; an airflow purification module, used to start a suction filtration module, the suction filtration module provides power for the suction airflow for the entire system, and performs negative pressure purification on the operating box; a conveying and processing module, used to start a delivery pipe coil module to deliver a suction hose to a blocked location to absorb the blocked element, start a reversing module to reverse the suction hose, and transport the blocked element to a collection module.

[0079] Example 3, reference Figure 4, is an embodiment of the present invention, which is different from the previous embodiment in that: if the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0080] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0081] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0082] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system, characterized in that: include: Install an operating box at the blocked part of the spent fuel loading and unloading system to form a sealed and isolated environment; Starting the suction and filtration module, which provides power for the suction airflow for the entire system and performs negative pressure purification on the operation box; The pipe delivery coil module is started to deliver the suction hose to the blocked location to absorb the blocked element, and the reversing module is started to reverse the suction hose to transport the blocked element to the collection module.

2. The method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to claim 1, characterized in that: The method of installing an operating box at the blocked position of the spent fuel loading and unloading system to form a sealed and isolated environment comprises the following steps: Cleaning the outer wall of the pipe where the spent fuel loading and unloading system is blocked; Aligning and positioning the sealing interface of the operation box with the outer wall of the pipeline at the blocked position of the spent fuel loading and unloading system; The operation box is fixed on the outer wall of the pipeline by a sealing fixing device, and the sealing fixing device includes a sealing ring and a fastener.

3. The method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system as claimed in claim 2, characterized in that: The operation box is fixed on the outer wall of the pipeline by a sealing fixing device, wherein the sealing fixing device includes a sealing ring and a fastener, and includes the following steps: Installing the sealing ring in the sealing interface groove of the operation box; The fasteners are passed through the fixing holes of the operation box in sequence in a circular evenly distributed manner, and if it is detected that the installation torque of any fastener is less than a preset torque value, the installation of the fastener is re-executed; The fasteners are tightened in a cross-diagonal order until the compression of the sealing ring reaches a preset compression amount. If it is detected that the local compression of the sealing ring exceeds the preset compression upper limit, the fasteners at the corresponding positions are loosened and readjusted.

4. The method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system as claimed in claim 3, characterized in that: The starting suction filter module, which provides the power of suction airflow for the whole system and performs negative pressure purification on the operation box, comprises the following steps: Start the airflow power device of the suction and filtration module, and provide suction airflow to the ball path suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit through the suction and filtration module; Performing negative pressure suction on the operation box until the pressure value in the operation box drops to a preset negative pressure value; The suction filtration module operates continuously and maintains the system airflow dynamics through the four circuits, wherein the negative pressure dust removal circuit of the operation box module continuously maintains the negative pressure environment of the operation box.

5. The method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to claim 4, characterized in that: The airflow power device for starting the suction filter module provides suction airflow for the ball path suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit through the suction filter module, including the following steps: Start the airflow power device of the suction filter module, and sequentially detect the airflow parameters of the ball suction main circuit, the tube coil module dust removal circuit, the commutator module dust removal circuit, and the operation box module negative pressure dust removal circuit. If the airflow parameter of any circuit does not reach the preset startup parameter, restart the airflow power device of the circuit; Adjust the air flow distribution valve of the suction filter module so that the air flow rate of the ball suction main circuit is greater than the air flow rate of the dust removal circuit of the tube coil module, the dust removal circuit of the commutator module, and the negative pressure dust removal circuit of the operation box module. If it is detected that the air flow rate of the ball suction main circuit is less than a preset flow threshold, increase the opening of the air flow distribution valve; The airflows of the four circuits are filtered and purified by the filtering device of the suction filtering module. If it is detected that the filter resistance of any circuit exceeds a preset resistance value, the spare filter is switched.

6. The method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to claim 5, characterized in that: The step of starting the pipe delivery coil module to deliver the suction hose to the blocked location to absorb the blocked element, and starting the reversing module to reverse the suction hose to transfer the blocked element to the collection module includes the following steps: Starting the pipe delivery coil module to control the forward speed and posture of the suction hose; Send the suction hose to the blocked part to suction the blocked component; The reversing module is activated to change the conveying direction of the suction hose, and the blocking element is conveyed to the collecting module.

7. The method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to claim 6, characterized in that: The method of delivering the suction hose to the blocked part and sucking the blocked component comprises the following steps: The distance between the suction hose and the blocking element is detected by a position sensor at the end of the suction hose, and if it is detected that the distance is greater than a preset suction distance, the suction hose is continuously controlled to move forward; When the suction hose reaches the preset suction position, the suction airflow intensity of the ball suction main circuit is increased, and if it is detected that the position of the blocking element has changed but has not completely left the blocking position, the suction airflow intensity is further increased until the preset maximum airflow intensity is reached; The movement state of the blocking element in the suction hose is monitored, and if it is detected that the blocking element completely enters the suction hose, the airflow intensity of the ball path suction main circuit is reduced to a preset transport airflow intensity.

8. A system using the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system as claimed in any one of claims 1 to 7, characterized in that: include: Sealed isolation module, used to install an operation box at the blocked part of the spent fuel loading and unloading system to form a sealed isolation environment; An airflow purification module, used to start the suction filtration module, the suction filtration module provides the power of suction airflow for the whole system, and performs negative pressure purification on the operation box; The conveying and processing module is used to start the pipe conveying coil module to convey the suction hose to the blocked place to absorb the blocked element, start the reversing module to reverse the suction hose, and transport the blocked element to the collection module.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for clearing the ball path of a high temperature gas-cooled reactor fuel loading and unloading system according to any one of claims 1 to 7 are implemented.

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