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- An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. It consists of an open- topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. The roof rises and falls with the liquid level in the tank. As opposed to a fixed roof tank there is no vapor space (ullage) in the floating roof tank (except for very low liquid level situations). In principle, this eliminates tank breathing loss and greatly reduces the evaporative loss of the stored liquid. There is a rim seal system between the tank shell and roof to reduce rim evaporation. The roof has support legs hanging down into the liquid. At low liquid levels the roof eventually lands and a vapor space forms between the liquid surface and the roof, similar to a fixed roof tank. The support legs are usually retractable to increase the working volume of the tank. (en)
- Un réservoir à toit flottant externe est un réservoir de stockage couramment utilisé pour stocker de grandes quantités de produits pétroliers. Ce type de réservoir de stockage est largement utilisé pour le stockage de liquides à point d'éclair moyen tels que l’essence, le kérosène, le gazole et le pétrole brut. (fr)
- 浮頂式儲油罐簡稱浮頂罐，為儲油罐重要的一個類別，主要因其設計有一個能「貼浮」在油面上，並隨儲罐內油位升降的「浮頂裝置」而區別於無該裝置的普通固定頂油罐。浮頂式儲油罐分為，內浮頂式和外浮頂式兩種，因浮盤的靈活上下可以貼近液面從而大大減少液面上方的氣體空間，因而可以大幅降低所儲存物料的蒸發損耗。該種儲罐被廣泛運用於諸如：汽油、航空煤油、柴油等輕質油品和原油的倉儲。 (zh)
- Плавучий дах резервуара (рос. плавающая крыша резервуара; англ. piston, tank floating roof,нім. Tankschwimmdach n) — накривка резервуара, якою затуляють отвір резервуара і яка призначена для зниження втрат нафти та нафтопродуктів від випаровування з вертикальних циліндричних резервуарів без стаціонарного накриття. (uk)
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- Un réservoir à toit flottant externe est un réservoir de stockage couramment utilisé pour stocker de grandes quantités de produits pétroliers. Ce type de réservoir de stockage est largement utilisé pour le stockage de liquides à point d'éclair moyen tels que l’essence, le kérosène, le gazole et le pétrole brut. (fr)
- 浮頂式儲油罐簡稱浮頂罐，為儲油罐重要的一個類別，主要因其設計有一個能「貼浮」在油面上，並隨儲罐內油位升降的「浮頂裝置」而區別於無該裝置的普通固定頂油罐。浮頂式儲油罐分為，內浮頂式和外浮頂式兩種，因浮盤的靈活上下可以貼近液面從而大大減少液面上方的氣體空間，因而可以大幅降低所儲存物料的蒸發損耗。該種儲罐被廣泛運用於諸如：汽油、航空煤油、柴油等輕質油品和原油的倉儲。 (zh)
- Плавучий дах резервуара (рос. плавающая крыша резервуара; англ. piston, tank floating roof,нім. Tankschwimmdach n) — накривка резервуара, якою затуляють отвір резервуара і яка призначена для зниження втрат нафти та нафтопродуктів від випаровування з вертикальних циліндричних резервуарів без стаціонарного накриття. (uk)
- An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. It consists of an open- topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. The roof rises and falls with the liquid level in the tank. As opposed to a fixed roof tank there is no vapor space (ullage) in the floating roof tank (except for very low liquid level situations). In principle, this eliminates tank breathing loss and greatly reduces the evaporative loss of the stored liquid. There is a rim seal system between the tank shell and roof to reduce rim evaporation. (en)
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- External floating roof tank (en)
- Réservoir à toit flottant externe (fr)
- 浮顶式储油罐 (zh)
- Плавучий дах резервуара (uk)
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