Pipeline valve safety assessment method based on limit external load calculation
A load calculation and safety assessment technology, applied in calculation, special data processing applications, instruments, etc., can solve the problems of pipeline valve design rationality and quality reliability without pipeline valve safety assessment methods, so as to eliminate quality hidden dangers and shorten development Cycle time, effect of saving calculation time
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[0055] This embodiment provides a method for evaluating the safety of pipeline valves based on the calculation of limit external loads. The process is as follows figure 1 shown, including the following steps:
[0056] S1: Establish a three-dimensional geometric model of valve body 2, pipe 1 and connector 3
[0057] Use the 3D geometric modeling software SolidWorks to establish a 3D geometric model. The model components include valve body 2, connector 3 (welded sleeve) and pipe 1. The length of pipe 1 in the model is twice the diameter of the pipe. Since the model and boundary conditions are symmetrical Sex, just take 1 / 2 model. The maximum working pressure of the pipeline valve is P=15MPa, and the material parameters of the valve body 2, pipe 1 and connector 3 are listed below. The external load of the valve is shown as image 3 shown. By defining the symmetric boundary and using the 1 / 2 model, the calculation amount can be reduced by half, so that the calculation process ...
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