A remote positioning and flipping system for replacing target inserts

Abstract

The invention relates to a remote control maintenance system for target plug-ins, especially a remote positioning and turning system for replacing target plug-ins. The remote positioning and turning system is set in a closed hot room environment and mainly includes a monitoring system and auxiliary tools. and the target plug-in, the remote positioning and overturning system also includes a positioning and overturning workbench, and the surface structure of the workbench matches the bottom surface structure of the target plug-in; the monitoring system includes a monitoring device and a remote control device, The monitoring device mainly includes a monitoring camera and a monitoring display screen; the monitoring camera is a rotatable radiation-resistant high-definition camera; the remote control device mainly includes a master-slave remote control manipulator and a remote control crane; The auxiliary tools mainly include a four-point special spreader and a two-point special spreader; the invention reduces the complexity of the work, reduces the fatigue of the operator, protects the integrity of the target body, and saves the capacity of the shielding bucket.

Description

technical field [0001] The invention relates to a remote control maintenance system for a target plug-in, in particular to a remote positioning and turning system for replacing a target plug-in. Background technique [0002] The target plug-in is the core component of the spallation neutron source and the source of the neutron beam. It can be seen that the maintenance of the target plug-in is an extremely important and primary task of the remote maintenance system. When the target system is in operation, the target plug-in It will be bombarded by protons, and because the operation of the target system is carried out for a long time, the target insert is bombarded by protons for a long time, making it highly activated. The maintenance of the target insert needs to be carried out in a closed heat chamber environment with radiation shielding , in a strong radiation environment, on the one hand, strong radiation will cause the most serious damage to electronic circuits, and fail...

AI Technical Summary

Problems solved by technology

[0002] The target plug-in is the core component of the spallation neutron source and the source of the neutron beam. It can be seen that the maintenance of the target plug-in is an extremely important and primary task of the remote maintenance system. When the target system is in operation, the target plug-in It will be bombarded by protons, and because the operation of the target system is carried out for a long time, the target insert is bombarded by protons for a long time, making it highly activated. The maintenance of the target insert needs to be carried out in a closed heat chamber environment with radiation shielding , in a strong radiation environment, on the one hand, strong radiation will cause the most serious damage to electronic circuits, and failed control circuits or sensors will not be able to achieve reliable maintenance results. Therefore, a radiation-resistant target system is required to achieve long-term effective The goal of maintenance, on the other hand, in order to avoid radiation damage to the operator, the hot cell environment must be a completely closed airtight space, so that the maintenance of the target body in the hot cell environment needs to be carried out by reliable remote control, but for The operation of remote control maintenance of components in a closed environment is difficult. The difficulty is reflected in the need to take into account both monitoring and operation, as well as real-time observation and processing of parameter changes that occur during the work process.

[0003] Replacing the target insert is a process of replacing the old target insert with a new target insert. The steps mainly include dismantling the old target insert and then installing a new target insert. Although this step seems simple, in practice it relies on The remote control operation makes the operation difficult, and the operator needs to be highly concentrated to complete the work. Therefore, due to the high physical energy consumption during the operation process, the operator needs to be replaced within a certain period of time, resulting in a loss of time in one job. Human resources are large, so a process of replacing the target insert requires multiple repeated tests to obtain the optimal procedure; in addition, since the process of replacing the target insert involves many steps of lifting the target insert, it is necessary to design the replacement When optimizing the process, we can consider optimizing the lifting method. However, the biggest difficulty of the lifting method is that when the target insert is installed on the target base, the target insert is installed in the target base in a horizontal state, but when When it needs to be transported to the shielding barrel for subsequent processing, if the target insert is placed horizontally and sent into the shielding barrel, it will occupy a large amount of space in the shielding barrel. For this reason, people try to turn the target insert into a vertical position. In the remote control maintenance process, the target insert cannot be turned over on the target base to be placed vertically, otherwise it is easy to cause mutual collision and damage to the target base or the target body, and because the weight of the target insert is heavy, it is difficult to It is also not suitable to add corresponding auxiliary structures to the body of the target insert during the process, so the target insert cannot be turned upside down smoothly in mid-air during the lifting process with simple tools, and this step is easy to cause the target insert to fall and be damaged by collision

[0004] In order to solve the problem of flipping the target inserts, people have thought of adding a storage workbench in a closed hot chamber environment. The added storage workbench is mainly used as a transfer station for the target inserts to be transferred from the target base to the shielding barrel, but the traditional The storage workbench adopts a flat structure, and the workbench surface is relatively smooth or not high in roughness, which is not enough to provide anti-slip effect for the positioning and turning of the target body insert. The position of the target body insert cannot be fixed on the workbench. While the difficulty of the work increases, it will also cause the target body to collide with the workbench and damage the target body. Finally, the positioning or turning work will be difficult to succeed. Even if it is successful, it will consume more time and a lot of manpower and material resources.

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