Gas leakage monitoring system, FLNG system and gas leakage monitoring method thereof

Abstract

The invention relates to a gas leakage monitoring system, a FLNG system and a gas leakage monitoring method thereof, and belongs to the field of the health, the environmental protection and the security. The monitoring system comprises a sensing unit, a control unit and an optical communication unit; the sensing unit collects gas concertation, environment temperature, wind speed and like information; the control unit acquires the data collected by the sensor, performs signal conditioning, generates a control instruction and sends to a purification device; and the optical communication unit performs data communication with the FLNG system by adopting the optical fiber. The hydrogen sulfide online monitoring is realized by performing automatic monitoring system design by adopting a centralized distributed control way, once the hydrogen sulfide leaks, the emergency purification treatment is immediately performed, the security and the reliability of the system are improved. The monitoringdevice disclosed by the invention has a time sensitive network, the certainty communication and synchronous measurement can be performed on various standard Ethernets, the monitoring device can be independently operated by breaking away from an upper computer, and the monitoring efficiency is improved.

Description

technical field [0001] The invention belongs to the fields of health, environmental protection and safety, and in particular relates to a gas leakage monitoring system, a floating liquefied natural gas system (FLNG) and a gas leakage monitoring method thereof. Background technique [0002] Gas leakage is an important problem in pipeline transportation. When leakage occurs, it may endanger personal safety and destroy the surrounding environment and ecological balance, resulting in loss of life and property. With the development of pipeline transportation, the monitoring methods and technologies of pipeline leakage are becoming more and more perfect, and have become an important research content in industry, agriculture, environmental ecological development and scientific research. [0003] Taking the floating liquefied natural gas system (FLNG) as an example, at present, the floating liquefied natural gas production storage and offloading unit (FPSO) is a floating production ...

AI Technical Summary

Problems solved by technology

The detection tube method has the advantages of convenient portability, simple structure and operation, low price, and rapid gas analysis; however, its detection accuracy is poor, its life is short, and it needs to be replaced frequently

Chromatography has the advantages of simple operation, sample analysis and fast analysis speed, but the analysis accuracy of trace gas is not high, the response time is long, and the requirements for analytical instruments are relatively high

At the same time, the current online monitoring technology is not suitable for long-term work in floating and corrosive environments on the sea

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