| Compressor according to its principle is divided into centrifugal compressor,piston compressor,jet compressor,screw compressor and axial flow compressor,etc.Centrifugal compressor is a kind of rotary power plant,The high speed rotating rotor has the effect of centrifugal force,so that the volume of gas is reduced,and the pressure is greatly increased,and the mechanical energy can be changed into the pressure energy of the gas.Centrifugal compressor has the advantages of high speed,uniform exhaust,less wearing parts,convenient maintenance,easy to realize automation and factory,etc.,so it has become the key power equipment for the compression and transportation of gas in the chemical plant,At this stage,the application of the most extensive,but the equipment manufacturing plant on the basis of centrifugal compressor vibration requirements are very strict,so the centrifugal compressor based on the structure of the design and analysis of a very important significance.The design and analysis of this topic selects the framework of the "SCAD" in the special structure software FMCAD,FMCAD software using space multi-degree of freedom system space truss model,using finite element method based,matrix method to solve static and dynamic problems,the software is a powerful,fast modeling,simple operation,so FMCAD software on the research analysis to the great support and help.This topic research Henan Junhua project 6743 kw centrifugal compressor frame type foundation design,focusing on the attention frame type foundation how to minimize vibration.To meet requirements of the equipment manufacturing factory on the basis of the vibration.The frame foundation under the load,the frame bars as space beam element,by column stationary on the base plate,stiffness matrix of the space beam in addition to considering the bending(torsional),but also consider the effect of the axial force and shear force,which can better reflect the stress condition of the space frame.Frame type foundation reinforced concrete structure and components are the C30 concrete,selected HPB300 HRB335 and HRB400 reinforced,choose three component section scheme comparative analysis,through each scheme of vibration velocity and amplitude compared in meet the strength,stiffness and stability of the premise,the final choice of economical and reasonable,safe and applicable scheme.Eventually,research and analysis of this topic makes me benefit,for the future design of centrifugal compressor frame foundation has accumulated valuable experience,but also the very important guiding significance to the of centrifugal compressor frame foundation construction. |