Dn500 Pneumatic Quick Cut Butterfly Valve Complete Localization Of Design Research And Piston Finite Element Analysis

In industrial production, widespread use of fast shut-off valves, such as metallurgical, petrochemical and other industries for rapid cutting oil, gas, water and other media. Widely used in metallurgy industry, quickly cut off the gas medium, in particular, are widely used in the furnace area. In recent years, promotion and application of regenerative reheating furnace, fast shut-off valves for pneumatic applications in a broad space. Therefore the development of applications with high reliability, long life, fast switching time short cut-off valve has an important role.Quick shut-off valve is the valve and the rapid implementation of the traditional combination of devices, to achieve the valve to quickly open and cut off the function, you can use gate valves, ball valves, globe valves, butterfly valves, etc., typically use rapid implementation of pneumatic actuators, pneumatic actuator with piston, diaphragm and rack and pinion, usually depending on the application environment and technical requirements for quick selection of the appropriate valve and actuator.Topics discussed in this fast shut-off valve is used in regenerative furnace for quick cut to the DN500 pneumatic valve, pneumatic actuator for the rack and pinion, the United States Bole Fu products, Bethel Wenzhou three eccentric butterfly valve butterfly.This topic comes from actual production, is the Hangzhou Iron and Steel tropical plant regenerative furnace DN500 butterfly valves pneumatic quick cut some aspects because of the quality of design and manufacturing defects, such as the butterfly appears in the production Mifengbuyan, dish plate torn off, pneumatic piston actuator faults and other defects. In particular, frequent break piston, pneumatic actuator manufacturer, although a technical research and improvement, but the Pistons improved fault accident is still frequent. Therefore, the technical research on the subject of valve malfunction were studied to find out the reason why failures, absorption into the latest research results in related areas, the failure of the proposed improvements. Carried out through the application of solidworks2009 valve, pneumatic actuator design, virtual assembly. DN500 butterfly valves pneumatic quick cut of the virtual assembly and motion simulation carried out. Stress analysis by the piston, piston selected 6 representative stress state through the simulation of finite element simulation to find the reasons for breaking the piston and piston according to the analysis results to improve, improved simulation results show improvement of the piston effect good, to achieve the desired effect.Close to the actual production of the paper, to improve on the butterfly will solidwork2009 applied to product design, and simulation analysis of the piston, and achieved good results. DN500 butterfly valves pneumatic quick cut to a full domestic, and to improve the quality of design and manufacture of catalytic effect on the application of other similar problems also have reference value.