关键词: 阻火器, 安全, 性能测试系统, 配气装置, 传感器检测系统, 数据采集系统

Abstract: Flame arrester is a kind of safety equipment which can prevent flammable gas and liquid vapors from spreading，and widely used in petrochemical and natural gas industry in recently years. In order to improve the flame arrester performance testing and detection level，this research focused on flame arrester performance testing system. The system designed was able to complete the test configuration of explosive mixture gas，explosion process pressure，flame velocity and temperature testing work，the analysis of the data processing work. The testing system included gas mixing apparatus，sensor detection system，data acquisition device. Gas mixing apparatus can realize the request of static-dynamic mixing with gas. Sensor detection system can achieve the function of fire recognition，temperature detection and the pressure detection. Data acquisition device can realize processing data，displaying experiment data in real-time，recording and processing the test data. The testing system considered sufficiently the security issues of the testing scene，and the testing precision can completely satisfy the testing requirements of flame arrester. This system was stable，reliable and quite simple in operation and met the national standards.

Key words: flame arrester, safety, performance testing system, gas mixing apparatus, sensor detection system, data acquisition device