Electromagnetic hanger for nuclear power plant

Abstract

The invention discloses an electromagnetic hanger for a nuclear power plant. The electromagnetic hanger comprises a hanger body, electromagnetic driving mechanisms and hanging posts, wherein a plurality of electromagnetic driving mechanisms are arranged on the periphery of the hanger body, each electromagnetic driving mechanism comprises a fixed iron core, a moving iron core, a coil and a spring, the coils are arranged outside the fixed iron cores and the moving iron cores, the springs are positioned between the fixed iron cores and the moving iron cores, the outer sides of the moving iron cores are connected with the hanging posts, and the electromagnetic driving mechanisms can drive the hanging posts to move through the motion of the moving iron cores and enable the hanging posts to extend into the hanger body in different depths. The electromagnetic hanger disclosed by the invention adopts the electromagnetic driving mechanisms to provide driving force, and the hanger can still keep the state of grabbing a hung object under an unexpected working condition of sudden power failure and effectively avoid the occurrence of unexpected hook release accidents. The electromagnetic hanger can be used for operating spent fuel storage tanks of high-temperature gas cooled reactor nuclear power plants and other types of nuclear power plants, and can also be applied to hoisting various ordinary industrial containers.

Description

technical field [0001] The invention relates to the technical field of slings, in particular to an electromagnetic sling used in nuclear power plants. Background technique [0002] As we all know, a spreader is a tool for hoisting various types of equipment. The existing lifters include electromagnetic and pneumatic types, and the driving force provided by the outside is mainly used to allow the equipment to lift objects. Because the object is hoisted by external force, once the external force disappears due to an accident, a drop accident of the hoisted object will occur, endangering the safety of the operator and the hoisted object. [0003] In dangerous environments such as nuclear and high temperature, the reliability of the lifting gear is required to be higher. Under various working conditions, the safety of lifting objects must be guaranteed. When grasping the nuclear material, once the external force disappears, the spreader will lose power. If the nuclear material ...

AI Technical Summary

Problems solved by technology

When grabbing nuclear material, once the external force disappears, the spreader will lose power. If the nuclear material falls off, it will cause the accidental release of radioactive material and affect the safety of the surrounding environment.

[0004] The existing spreader cannot avoid accidental decoupling accidents, and cannot adapt to special environments such as nuclear and high temperature

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