Design and Analysis of Sealing Performance of UHP Plate Gate Valve
Aiming at the current vacancy of UHP llhead plate gate valve design guidance,the structural size of the flat gate valves with a diameter of 78 mm under 175 MPa working internal pressure was given by referring to the method of determining the design parameters of flat gate valves in API 6A and API 6D standards.For the designed non-standard plate gate valves,the sealing performance under bolt pretension,rated working internal pressure condition,and 1.5 times hydrostatic pressure condition were analyzed by finite element method and the design meth-ods of 175 MPa flat gate valves for UHP(Ultra-high pressure)wellheads at home and abroad were supplemented and improved.The non-standard flat gate valves designed accordingly can meet the sealing criteria and cope with a certain amount of dynamic load,providing a reference for the design of the flat plate gate valves of the ultra-high-pressure wellhead.
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NSTL
万方数据
维普
