浮顶储罐的一种新型密封装置

A new seal device for floating roof storage tank

大型储罐在施工中椭圆度、垂直度及局部凸凹度的偏差不可避免。在储罐的操作过程中介质、气候、温度以及储罐基础沉降等因素,会引起储罐和浮顶的几何形状和尺寸的变化,从而影响浮顶储罐的密封效果。滚轮骨架密封采用若干个圆弧线段密封骨架,通过转轴连接,使密封骨架象链条一样在弹簧力的作用下随着储罐改变形状。骨架端部装有滚轮,当浮顶上下移动时滚轮就在罐壁上行走,并保持密封骨架与罐壁的距离不变。该装置具有防雨、刮蜡、双重密封等多种功能,具有很强的经济价值和实用价值。

Deviations of ovality, perpendicularity and partial concave-convex on large-scaled storage tanks are inevitably in construction. Such factors as medium, climate, temperature and tank foundation settlement during the operation of storage tanks will cause changes in geometric shape and dimension of storage tank's floating roof, thus affect sealing result of floating roof tanks. Roller skeleton seal applies several seal skeletons in circular arc line section and make the seal skeleton a chain by means of rotating shift joint and changeable with the tank shape changed under an action of spring force. There equip with rollers at each end of skeleton and they will travel along the tank wall as the floating roof moves up and down, and maintain the distance between the seal skeleton and tank wall. With the functions of rainproof, paraffin scraping and dual-seal, the device has strong economical and practical value.