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根据分隔式井下增压器整体结构设计原则 ,给出主要结构参数的数学表达式和计算方法 .由增压钻井液流量和隔膜对活塞速度的限制 ,计算了活塞的直径和长度 ,并确定了超高压泵活塞几何参数强度限定条件 ;根据爆破失效准则设计并计算了超高压泵缸体壁厚 ;设计了满足工作条件的隔膜腔结构 ,推导出了其结构参数的计算公式 .根据增压器环形隔膜腔与动力液缸容积关系 ,计算了泵缸筒内径和缸筒壁厚
According to the principle of the overall structural design of the divided downhole supercharger, the mathematical expressions and calculation methods of the main structural parameters are given.The diameter and length of the piston are calculated from the flow of pressurized drilling fluid and the speed of the diaphragm by the diaphragm, According to the failure criterion of blasting, the wall thickness of the ultra-high pressure pump cylinder is designed and the diaphragm cavity structure which meets the working conditions is designed, and the formula of its structure parameters is derived. According to the supercharger The relationship between the annular diaphragm cavity and the power cylinder volume was calculated, and the inner diameter of the pump cylinder and the cylinder wall thickness were calculated