Improved Design and Verification of Industrial Valve Fugitive Emissions Testing
Through the combination of theoretical analysis and experimental verification,this paper improved the design of the bagging method in the valve fugitive emissions testing specified in ISO 15848-1:2015 and GB/T 47009-2021,and revised the calculation formula of its leakage rate.The test results show that,with the improved new method,the test medium is no longer strictly limited to the purity requirement of helium above 97%in the standard.The new method makes the test results more accu-rate and rigorous,and further improves the economy of the test and the convenience of operation,it also provides a strong theoreti-cal basis and experimental data support for the subsequent edition upgrading of international standards and Chinese national standards,and also plays a positive role in promoting the popularization of valve fugitive test.