一种城市汽车加油站加油机的防护设计

Protection Design of Filling Machine in Urban Gas Station

首先在加油站加油机四周加装防护立柱,并验算在汽车失控冲击加油机时防护立柱所需承受的最大动载荷和弯矩,根据计算所得的应力进行材料选型。然后在防护立柱外选用可旋转的橡胶垫圈,计算在弹性变形范围内吸收汽车正面碰撞的动载荷所需的橡胶厚度。以上两种设计既可以完全吸收汽车冲击的动能,又能引导失控的汽车尽量沿着橡胶垫圈的切线方向滑出,缓慢释放动能,减轻碰撞,以此确保加油机在汽车冲击事故中不被破坏。

The columns were firstly installed around a filling machine in a gas station for safety protection. Meanwhile the maximum dynamic loads and bending moments of the protective columns were calculated when a vehicle runs out of control and collides the filling machine. The materials of the column were selected according to the calculated stress. Then,the rotatable rubber gaskets were installed outside the protective columns. The thickness of rubber gasket required to absorb the dynamic load of vehicle frontal collision was calculated in the elastic deformation range. The design not only ensures that the kinetic energy of vehicle collision is absorbed completely by the protective columns,but also guides the out-of-control vehicle to slide along the tangent direction of rubber gaskets. It will release kinetic energy slowly and reduce collision,which makes the filling machine not destroyed in vehicle collision accidents.