The storage tank was pressurized, and its outside gas-collecting vessel was kept low pressure or pumped to a certain vacuum, forming differential pressure accumulation leak detection and pressur...

• 被检容器充正压,外部集气容器保持常压或抽成真空,实现正压差累积法检漏和压力真空检漏,消除了人为及环境因素影响,具有检测效率高、结果精确、安全可靠等优点。经测算该检测方法较传统方法可降低成本30%25。