摘要
介绍了一种气密性在线检测装置。从被测对象特征和生产线工艺布置的实际情况出发 ,在对绝对压力和差压检测二种方式进行分析比较后 ,提出采用差压型泄漏检测仪和选择负压测试法。重点介绍了悬挂式负压型泄漏检测装置的系统组成与原理特点 。
An on line pressuretightness detecting device is introduced.From the features of the measured object and practical situation of the arrangement of the production process, and the result of comparing two testing methods of absolute pressure and differential pressure, the device is using differential pressure leakage detecting with vacuum type testing method. The system composition of the suspended vacuum type leakage detecting device and features of the principle are emphasized. The device resolved the problem for on line detection of the pressuretightness between the sealing lid pressured into the cylinder and the main body.
出处
《自动化仪表》
CAS
北大核心
2002年第10期28-31,共4页
Process Automation Instrumentation
关键词
差压式泄漏检测
负压测试法
悬挂式执行装置
Differential pressure leakage detection Vacuum testing method Suspended actuating unit