Kerosene monitoring system and method based on dielectric constant detection

Abstract

The invention discloses a dielectric constant detection-based kerosene monitoring system and method which belong to the field of spaceflight kerosene storage safety. The system comprises a signal collection unit, a signal processing unit and an acousto-optic warning unit that are orderly connected; the signal collection unit comprises a reference capacitance sensor mounted in an airtight shell body and a plurality of measurement capacitance sensors mounted in an oil storage pipeline; the airtight shell body is filled with kerosene, the reference capacitance sensor and the measurement capacitance sensors are connected in parallel, and the signal processing unit comprises an analog-to-digital converter and a single-chip microcomputer controller; the acousto-optic warning unit comprises a state display screen, a buzzer and a drive circuit; according to the method, a capacitance variation quantity is calculated based on dielectric constants collected by the reference capacitance sensor and the measurement capacitance sensors, and alarm detection is performed after the capacitance variation quantity is compared with a capacitance variation threshold value. The dielectric constant detection-based kerosene monitoring system and method are simple in technical solution, and kerosene quality can be monitored on line and alarms can be given out when kerosene is leaked from an oil storage pipeline.

Description

technical field [0001] The kerosene monitoring system and method based on dielectric constant detection of the present invention belong to the field of aerospace kerosene storage safety. Background technique [0002] Aerospace kerosene is a liquid fuel commonly used in aviation engines. It is flammable, explosive and volatile, and is a dangerous chemical substance. As an important operation department of the fuel guarantee of the local airport, the airport oil depot is responsible for the guarantee and supply of fuel for the aircraft. At present, the vast majority of civil aircraft in my country use aviation kerosene. Aerospace kerosene is not only flammable, but also explodes when a certain concentration of kerosene vapor is mixed with air under certain conditions; during the storage and operation of aerospace kerosene, equipment damage or operational errors All will cause leakage, and a large amount of kerosene leakage will cause the diffusion of kerosene vapor. Once the o...

AI Technical Summary

Problems solved by technology

At present, the vast majority of civil aircraft in my country use aviation kerosene. Aerospace kerosene is not only flammable, but also explodes when a certain concentration of kerosene vapor is mixed with air under certain conditions; during the storage and operation of aerospace kerosene, equipment damage or operational errors All will cause leakage, and a large amount of kerosene leakage will cause the diffusion of kerosene vapor. Once the operator inhales a large amount of kerosene vapor, it will cause certain damage to the body and cause greater harm to personnel, equipment and the environment. Therefore, the leakage of aerospace kerosene monitoring is necessary

[0003] Kerosene monitoring technology uses sensors installed in airtight containers to use optical, electrical, magnetic and other means to sample the components contained in the solution, but online real-time monitoring cannot be achieved; or embedded oil analysis sensors are used, and based on this In the past, many oil monitoring systems have been developed for various types of equipment, which can realize online analysis and real-time monitoring, but the technology is complicated and the equipment cost is expensive

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