摘要
针对某覆土油罐浮起事故,基于该油罐的基本结构,分析了浮起事故发生的原因,研究了防范对策。根据排空油罐的受力分析,进行了相关计算,结果表明:若使容量分别为1000m3、2000m3、3000m3、5000m3、10000m3的覆土油罐浮起,罐室集水高度只需达到0.232m、0.223m、0.231m、0.218m、0.234m,集水量只需达到3.636m3、4.367m3、5.290m3、6.356m3、8.921m3,即使排水阀全开,如果罐室进水量超过30m3/h,排空油罐就可能浮起。为此,从覆土油罐的全面改造、排水补漏、加强管理及设计建造等方面提出了浮起事故防范对策。(表2,图2,参5)
In view of a buried tank uplifting accident, this paper analyzes the cause of the accident based on the basic structure of the buried tank, and discusses countermeasures accordingly. Relevant calculation is carried out according to the stress analysis of the emptied tank. Results show that to uplift buried tanks of nominal capacity of 1 000 m~, 2 000 m3, 3 000 m3, 5 000 m3 and 10 000 m3, it is only required that the water collection height and water collection volume in the tank chamber should reach 0.232 m, 0.223 m, 0.231 m, 0.218 m and 0.234 m and 3.636 m3, 4.367 m3, 5.290 m3, 6.356 m3 and 8.921 m3 respectively, and even if the drain valve is totally open, when the water intake rate of the tank chamber exceeds 30 m3/h, the emptied tank will be uplifted. Therefore, the paper proposes countermeasures for uplifting accidents in following aspects, including complete transformation, drainage leakage repair, strengthening management and design ＆ construction, etc. （2 Tables, 2 Figures, 5 References）
出处
《油气储运》
CAS
2013年第2期207-210,共4页
Oil & Gas Storage and Transportation
关键词
覆土油罐
浮起事故
原因分析
防范对策
buried tank, floating accident, cause analysis, countermeasure
