论文部分内容阅读
石油及石油化工液体产品的常压储存,过去大多数采用立式圆筒形钢制固定顶罐,例如拱顶罐、锥顶罐、桁架罐,无力矩罐等。这类罐蒸发损失大,造成产品损失、变质及污染大气等问题。储罐的蒸发损失分为两种,一种是大“呼吸”损失,即当产品进入储罐时液位上升,液面以上的产品蒸气大量排到罐外,当卸出产品时,液位下降,新鲜空气进入罐内又形成
Atmospheric storage of petroleum and petrochemical liquid products, the use of vertical cylindrical steel fixed roof cans, such as vault cans, cone top tank, truss tank, torque tank and so on. Evaporation loss of these tanks, resulting in product loss, deterioration and pollution of the air and other issues. Evaporation loss of the storage tank is divided into two kinds, one is the big “breathing ” loss, that is, when the product into the tank when the liquid level rise, a lot of product vapor above the liquid line to the tank, when the product is discharged, Level down, fresh air into the tank and formed