This method uses recirculated water to form a low temperature water-layer on the surface of the floating roof, can keep the temperature of floating roof in certain range.

• 该方法可以避免夏季时浮盘因阳光辐射和气温升高而导致油品温度变化过大的状况,降低油气压力的变化幅度,达到减少油品蒸发损耗的目的。