Design and analysis of steel structure portal sealing door of nuclear facilities
After the operation of nuclear facilities,radioactive elements are potentially dangerous.As a part of the barrier boundary,the door often needs to have the function of sealing.According to the requirements of construction,installation and test process,it is necessary to install a portal sealing door with a transport passage door on the reinforced concrete wall of the tunnel entrance,which bear the test pressure load of-15kPa and meet the requirements of leakage rate.Based on the requirements of working conditions,a kind of portal sealing door was designed,including the door panel,compression structure and gasket etc.In order to reduce the weight of the equipment,using the grillage beam theory and the small deflection theory of the elastic thin plate of the rectangular panel,the steel frame keel and the sealing panel of the door panel were calculated,and the combination with the minimum mass was selected.And ANSYS Workbench was used to calculate and analyze the theoretical design of the portal sealing door,which verifies the reliability of the design.Through the prototype test design,the tightness and operability of the design scheme of the portal sealing door at the entrance were further ensured,and the pre-tightening force of the bolts was determined to ensure the reliability of the equipment when it is put into use.
nuclear facilitiessteel structureportal sealing doorfinite element analysisprototype test
NETL
NSTL
万方数据
