Gas safety shield system of hydrogen refueling station

Abstract

The invention discloses a gas safety shield system of a hydrogen refueling station. The gas safety shield system comprises a hydrogen micro-leakage monitoring and early warning module, a hydrogen medium leakage monitoring and alarming module, a hydrogen high leakage monitoring and alarming module, a three-stage alarming system, a feedback processing system and a central control platform; the hydrogen micro-leakage monitoring and early warning module comprises a hydrogen-sensitive color change sensing patch adhesive tape, a camera and an AI big data platform, and is linked with the three-stage alarm system; the hydrogen medium leakage monitoring and alarming module comprises a fixed electrochemical principle hydrogen detector and a hydrogen alarming controller, and is linked with the three-stage alarming system and the feedback processing system; and the hydrogen high leakage monitoring and alarming module comprises a fixed combustible gas detector based on a catalytic combustion principle, and is linked with the three-stage alarming system and the feedback processing system. The gas safety shield system of the hydrogen refueling station provided by the invention has the characteristics of wide leakage monitoring coverage range, high automation degree, safety, high efficiency, three-dimensional and comprehensive monitoring data and graded alarm function.

Description

technical field [0001] The invention relates to the technical field of gas leakage prevention for hydrogen refueling stations, in particular to a gas safety shield system for hydrogen refueling stations. Background technique [0002] During the hydrogen storage, transportation and sales process of hydrogen refueling stations, the key equipment or pipelines involved in gas unloading, pressurization, hydrogen storage, hydrogen refueling and release systems have certain potential safety hazards of gas leakage. Hydrogen is colorless, odorless, highly fugitive, and has a low explosion limit, making it difficult to be quickly monitored. [0003] At present, the content of gas leakage monitoring in hydrogen refueling stations is relatively simple, mainly focusing on the use of combustible gas detectors based on the principles of catalytic combustion and infrared optics, as well as hydrogen detectors based on the principles of catalytic combustion and electrochemistry, to realize de...

AI Technical Summary

Problems solved by technology

[0002] During the hydrogen storage, transportation and sales process of hydrogen refueling stations, there are certain gas leakage safety hazards in the key equipment or pipelines involved in gas unloading, pressurization, hydrogen storage, hydrogenation and release systems.

Hydrogen is colorless, odorless, highly fugitive, and has a low explosion limit, making it difficult to be quickly monitored

[0003] At present, the content of gas leakage monitoring in hydrogen refueling stations is relatively simple, mainly focusing on the use of combustible gas detectors based on the principles of catalytic combustion and infrared optics, as well as hydrogen detectors based on the principles of catalytic combustion and electrochemistry, to realize detection of large leakage. monitoring and alarming, unable to prevent leakage in a timely and effective manner. When detecting changes in the concentration of leaking gas in the environment, the detector will transmit an electrical signal to the console, and perform sound and light alarms according to the set alarm value. This requires a sensor With circuit structural components, construction wiring is even required during installation, and there is a certain risk of explosion

Secondly, for the micro-leakage of equipment and pipe fittings, it is still at the stage of smearing soapy water and using a hand-held detector to detect, which requires personnel to continuously inspect the site. In small areas, especially mobile or skid-mounted Type hydrogen refueling station, there are many leakage points, manual inspection is time-consuming and laborious, it is not easy to quickly and accurately trace the source, information transmission also takes a certain amount of time, and at the same time, the on-site staff also face certain safety risks

In addition, the application division of various gas leakage monitoring equipment in the hydrogen refueling station is not clear, which brings inconvenience to the emergency relief mechanism and daily management. All-round monitoring of hydrogen station gas leakage without dead ends will greatly improve the timeliness and management efficiency of the monitoring process

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