EXPERIMENTAL METHOD AND SYSTEM BASED ON RESEARCH OF JET FIRE OF LONG-DISTANCE NATURAL GAS PIPELINE UNDER OBSTACLE PLACEMENT CONDITION

摘要

Disclosed are an experimental method and system based on the research of jet fire of a long-distance natural gas pipeline under an obstacle placement condition. The method comprises: calculating flame parameters; setting obstacle parameters; collecting relevant parameters of a flame combustion process; and correcting a thermal radiation intensity formula under an obstacle-free condition in combination with experimental data so as to obtain a thermal radiation intensity formula under an obstacle condition. In the present disclosure, relevant parameters of an obstacle are changed to research the influence of the obstacle on the spreading of flames, and the damage range of a fire hazard is analyzed, and thus a safety distance for the fire hazard is obtained. The method is used in a natural gas leakage ignition and combustion experiment, and has the advantages of multiple variables being capable of being independently controlled and remotely controlled, data collection being automatic, and the experiment time being short, the experiment repeatability being high, the cost being low, and the safety being high.