Analysis of stuck operation and poor sealing of self equalizing connecting rod butterfly valve,and proposed improvement.Taking the existing valve as the research object,the deformation of the valve plate is calculated by the finite element analysis method,and the deformation of the valve plate is simulated.Combined with the actual test data of the existing valves,it is confirmed that the clearance of the bushing affects the operation and sealing of the valve plate,and the stiffness of the valve plate affects the sealing of the valve.Properly increasing the clearance between the guide shaft and the shaft sleeve,improving the valve plate stiffness,controlling the valve plate deformation,can effectively improve the valve operation and sealing performance.
维普
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