铝制内浮顶在我厂的应用

Application of Internal Floating Roof of Aluminium - alloy

装配式铝制内浮顶,改变了过去传统的钢制浮船式内浮顶的设计方式,其结构特点:①采用密封的铝质浮筒作为浮力构件,该浮筒化学性能稳定、不易被氧化或腐蚀;②采用固定钢丝绳支撑的软式防转装置,缓解了浮顶径向压力的不均衡状态,防止了浮顶的卡盘;③采用舌型密封带,安装在浮顶的上部,使其不与油品接触,彻底解决了密封带溶蚀变形、老化、破损而降低密封效果的难题。推荐用氟橡胶制作的舌型密封带,用于纯苯、溶剂油储罐的密封条上,效果更好。铝制内浮顶自身重量轻、安装方便及施工周期短,给恢复生产赢得了时间。介绍了两座改装成装配式铝制内浮顶的轻油罐,经过4年多时间的使用,未发生泄漏及沉船事故。在节能、安全等方面取得了显著效果。

Fabricated internal floating roof of aluinium- alloy have changed the conventional method of designing steel internal floating roofs (which look like floating pontoons). The structural characteristics are as follows:1. Used as floating components are light aluminium-alloy floats, which have stable chemical properties and are not easily corroded;2. Soft and anti-turning devices supported by fixed cables are adopted to prevent unbalancing ratial pressure state and wedging of the floating roofs;3. Tonguing sealing belts can be adopted and installed on upper side of the floating roofs without contacting the oil surface, thus preventing the sealing belts from melting,being corroded, deforming, aging and being damaged so that the problem of poor sealing effects caused by the above mentioned factors can be completely solved. Recommended in the paper are tonguing fluororubber sealing belts, more effective if used in pure benzone and solvent oil tanks. The said internal floating roofs of aluminium-alloy have such advantages as being light in weight, convenient for installation and taking less time for reoperation, which helps saving the time it takes for reconstruction. Two light oil tanks are described in the paper as examples. The original internal floating roofs have been replaced by the fabricated ones made of aluminium-alloy. No accidents like leakage and sinking have ever accured so far after 4 year operation. In addition,they are very effective in energy saving and safety.