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http://dx.doi.org/10.21289/KSIC.2018.21.6.429

A Study on a Quality Characteristics of Pressure Leak Test of Process Piping for Offshore Plant  

Park, Chang-Soo (Offshore Industries R&BD Center, Korea Research Institute of Ship & Ocean Engineering)
Kim, Hyungwoo (Offshore Industries R&BD Center, Korea Research Institute of Ship & Ocean Engineering)
Publication Information
Journal of the Korean Society of Industry Convergence / v.21, no.6, 2018 , pp. 429-437 More about this Journal
Abstract
The process gas piping of the offshore plant can cause a massive explosion if the gas leakage occurs during operation. For the purpose of precaution of gas leakage accident, an air pressure test is performed on the process equipment tests using a test pump as much as the power to the piping inner side, mix 99% nitrogen gas and 1% helium gas. The purpose of the air pressure test is to check the work conformity process by handling and regulation for initial piping process, assembly, installation of module, welding, center alignment of the pipes assembling flange gasket in an unrestrained free state. In this paper, the regulation of the problematic air pressure test was analyzed and the solution criteria were established. And leakage tests of existing equipment were performed applying these solution methods. As a result, it was confirmed that there was no problem.
Keywords
Floating Liquefied Natural Gas; Pressure Leak Test; Mixing Gas Detecting Test; Flange Management System. scf/Yr: Standard Cubic Feet Per Year;
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