Study On Double-phase Flow Diaphragm Pump’s Virtual Prototype

Double-phase flow of the solid and liquid diaphragm pump (hereafter referred to as the diaphragm pump) belong to the reciprocating pump is a new generation reciprocating pump to transport highly fretting corrosion medium. Diaphragm pump’s key component is rubber diaphragm which can protect piston and other important part destroyed Therefore, the diaphragm pump not only has simply structure but also has abrasive resistance and corrosion resistance compared with other reciprocating pump. Diaphragm pump is of the heart of the process equipment, so it work safety have high request.Recent years,flow,pressure, temperature,fretting corrosion of the diaphragm pump attained deeply development,so diaphragm pump are widely used in many fields such as Non-ferrous metals, coal, Power, chemical, environmental, mining and so on. Generally, the diaphragm pumps belong to the products which are need to be customized according to different working conditions it is used in. However, different type of diaphragm pump commonly have a lot of similarity parts, so it is important to serialized and modular design so that improve the design efficiency and decrease cost has a important actual meaning. Applied the technology of Virtual Prototype in diaphragm pump will benefit for its further development.This paper choose design goal is three cylinder single-action diaphragm pump,which rated flow of standard requirements as100m3/h and set rated discharge pressure as8MPa. Firstly, analyze the kinematic mechanism of duplex double-action diaphragm pump and triplex single-action diaphragm pump.Thereafter use Pro/E software to build the model of the mechanical parts of the diaphragm pump such as dynamic end、fluid end、decelerator etc and assemble them.Furthermore,doing some research such as force analysis and kinematic analysis for the key parts crank shaft and linkage and use MATLAB software plot some simulate curves that used ANSYS for further step research.Meanwhile,make use of mechanical system simulation software of ADAMS (Automatic Dynamic Analysis of Mechanical System) carry on dynamical analysis and kinematical analysis for virtual prototype of triplex single-action diaphragm pump’ dynamic end,all these for the next study offer some technology supports for the development of products.During working time, some important parts of diaphragm pump often happened fatigue breakdown and fracture effect normal usage.Under this situation,this paper take advantage of ANSYS software carry on some research for crank shaft, in order to more actually simulate it working conditions consider inertial force and not simplify the boundary conditions while this analysis.At last,offer some advice and measures to improve the structure.Thereafter, make use of ANSYS software’ nonlinear finite element function to design the rubber diaphragm and complete its optimal design.