Design Of Detecting Hydrocarbon Leakage Of Fuel Farm And Alarm System

Airport depot is an important airport security department running smoothly, and its safety is essential. Airport depot for oil spill monitoring is an important part of airport security depot in recent years has been more and more attention. Existing monitoring mainly through manual inspection of a portable detector, so monitoring is not timely, inefficiency and other problems. Based on the characteristics of oil volatiles airport depot standing and modern sensing and detection technology and security requirements, this thesis combined with the actual layout of the specific depot, conducted online oil spill monitoring and alarm technology based wireless network mode research and system design issues.For insufficient or defective oil leak monitoring and alarm system technology currently exists, we use photoionization detection (PID) technology measuring the concentration of a volatile mixture and gas, designed a low-power MSP430MCU combines CC2520wireless sensor network system consisting of radio frequency wireless communication node modules. In an airport depot for the application environment, designed for tank leak monitoring node layout and installation program. In order to improve the detection accuracy of the proposed group nodes by grouping and collaborative detection node layout programs and collaborative monitoring method based on threshold judgment, the use of monitoring data transmission based on wireless network communication technology. In view of the importance of detection concentration of volatile gas leak in line, the thesis focuses on the design of low-power wireless nodes scheme to meet the relevant security requirements in principles. The design selects PID-TECH-10000PPm Series PID integrated sensors from Base-line MOCON Inc. and with temperature compensation to achieve the target gas and the security of real-time and accurate detection, and for the PID detector designed environment suitable for on-site gas collection system. To ensure the system through timely and accurate detection of volatile gas concentrations to detect oil spills and timely warning for wireless nodes designed to meet the power needs of a rechargeable battery-powered and solar-powered combination of the power supply circuit and energy management solutions.As a network-based monitoring approach combining wireless sensor networks and nodes deployed field environment and collaborative testing program, and based on the integration of advanced technologies designed to meet the performance and security requirements of the oil and gas concentration automatic detection and to protect its power supply system, this design of airport depot oil monitoring and alarm systems to meet the real-time online and real-time automatic monitoring alarm spill practicality objectives and requirements, to improve airport safety and promote depot fuel leak detection technology has important significance and practical value.