Device for preventing primary and secondary sealed spaces of external floating-roof crude oil storage tank from oil-gas burning explosion

The utility model relates to a device for preventing primary and secondary sealed spaces of an external floating-roof crude oil storage tank from oil-gas burning explosion and aims to solve the problem that due to crude oil evaporation, primary and secondary sealed spaces of an external floating-roo...

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Bibliographische Detailangaben
Hauptverfasser: ZHANG XIAO, ZHANG HONGWEI, WANG YINGBIAO, ZHANG NINGJIA, HU ANLIN, ZHANG ZONGQIN
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model relates to a device for preventing primary and secondary sealed spaces of an external floating-roof crude oil storage tank from oil-gas burning explosion and aims to solve the problem that due to crude oil evaporation, primary and secondary sealed spaces of an external floating-roof storage tank in a crude oil storage tank area become inflammable and explosive oil-gas spaces. A crude oil evaporation suppressor is injected to the surface of the crude oil, and as the density of the crude oil evaporation suppressor is lower than that of the crude oil, the crude oil evaporation suppressor covers the surface of the crude oil, cannot sink and is free from electrostatic focusing. Therefore, crude oil evaporation is effectively prevented, an incombustible and unexplosive gas generated by self-evaporation of the crude oil evaporation suppressor dilutes oil-gas in the primary and secondary sealed spaces of the external floating-roof storage tank, and accordingly, inactive protection of the oil-gas space is achieved. The device has a convenient and simple implementation process, and can be applied to safety protection of external floating-roof storage tanks and material storage tanks in various shapes.