全尺寸高压纯氢管道喷射火试验实施

Core Insights - The National Pipeline Group, in collaboration with the China Academy of Safety Science and Technology, successfully conducted the first full-scale high-pressure pure hydrogen pipeline jet fire test in China, filling a technological gap in this field [1][2] Group 1: Test Overview - The test, which started on November 11 and lasted nearly one month, aimed to gather critical data on flame characteristics and thermal radiation impact range after hydrogen leakage [1] - The test platform included a hydrogen main pipeline with a storage capacity of 12,000 cubic meters, capable of supporting various test conditions for continuous leakage and jet fire monitoring [1] Group 2: Test Methodology - The test involved 33 sets of conditions, including four leakage aperture sizes and three pressure levels, with horizontal, inclined, and vertical jet directions [1] - High-precision equipment such as thermal radiation meters, pressure and temperature sensors, thermocouples, and high-speed cameras were used to capture real-time data on flame characteristics and thermal hazards [1][2] Group 3: Implications and Future Work - Preliminary analysis indicates that the data obtained is complete and valid, providing scientific evidence for determining safe distances for pure hydrogen pipelines [2] - The test results will help optimize the thermal radiation assessment model for hydrogen pipeline leakage jet fires, supporting the establishment of safety standards for hydrogen transportation and contributing to the energy structure transition under the "dual carbon" goals [2]