The analysis results show that the double O-ring sealing structure in horizontal channel can meet the requirements on strength and sealing during the pre-tightening and pressurizing processes.

• 计算结果表明，在预紧状态和设计压力状态下，水平孔道中的异种材料法兰联接-双道"O"形环密封结构完全可以满足强度和密封要求。