Analysis And Design Optimization Of Personnel Airlock In Nuclear Plant Based On ADAMS

Personnel airlock,which is one part of the containment's pressure boundary,should ensure that the containment's pressure boundary is integrated and sealed during the nuclear reactor's normal operation and reference accident conditions.Personnel airlock is a cylindrical containment equipment throughout the containment,and there are two seal door at both ends of the cylinder surface for personnel access.In the absence of electric power,the seal door can be completely manually opened and closed.The seal and dependability of personnel airlock rest with its choice of rubber O-rings.This article uses the theory of tiny rectangular rubber springs' combination to establish the approximate formula of pressing force and deformation,when the rubber O-ring's section is reduced within 20%.Then according to the transit size and operating time requirements of personnel airlock,I can estimate the detailed parameters of two-staged gear and crank-slider in the locking mechanism.By the way of ADAMS software,I can build a virtual prototype model of one-half of the locking mechanism,and make kinematics and dynamics simulation analysis to learn the displacement,velocity and acceleration of door latch,also the operating torque of hand wheel.On this basis,I can make parametric and optimal design to get the better personnel airlock's locking mechanism.The article provides an effective support for the safety and reliability of personnel airlock,when the doors are opened and closed in the design conditions.The safe and reliable personnel airlock,which has reasonable structure,can help people enter and leave the containment efficiently and fast.It can also save valuable escape time during the accident conditions.