共查询到20条相似文献,搜索用时 156 毫秒
1.
2.
通过对一重油油罐泄漏情况的观察和分析,认为油罐罐底发生泄漏主要是由罐底外部腐蚀造成的。要延长油罐寿命必须严防油、水进入罐底,做好罐底钢板防腐,尽量减小罐底与混凝土基础间的缝隙,并使其与外界保持密封,防止空气交换。 相似文献
3.
4.
针对中国石油大连石化公司874#罐泄漏情况,对该罐的腐蚀状况进行外观检查和腐蚀检测,从而对罐底泄漏的原因进行分析,提出相应的维修方案和防护措施。 相似文献
5.
6.
针对大型原油储罐罐底腐蚀,分析了罐底腐蚀的原因,针对罐底板边缘板的易腐蚀情况采取有效防范措施,保证储罐在运行期间的完好,确保输油生产的安全可靠。 相似文献
7.
8.
9.
通过利用自然温差升压法对油罐罐顶吸瘪部位进行恢复处理,实施前应进行理论校核,以避免发生油罐底抬起现象,并确保壁板、顶板及底板处应力不超过材料的许用应力。 相似文献
10.
11.
12.
13.
介绍了石油储运系统中储油罐区的设计,通过介绍储油罐区的总容量确定、工艺设计及消防设施设计,说明了储油罐区的规范设计和安全防范措施对其功能、作用的发挥及对石油储运系统安全、高效生产运营的重要性。 相似文献
14.
15.
16.
光纤传感测试系统具有良好的温度性能,在不影响原始温度场、压力场分布,及不影响油田正常生产的情况下,实现实时多点温度、压力或连续的温度分布快速测量。尤其是光纤永久测量技术以其独特的安装方式,可以对水平井进行实时监测,解决以往水平井测量难的难题。从而实现直井、大斜度井、水平井的实时测试。本文主要介绍了光纤光栅传感技术、F—P腔传感技术、光纤分布测温技术,就其技术原理、构建方法及其在辽河油田的应用情况进行了综合评述。 相似文献
17.
18.
19.
20.
A research program was undertaken to examine the dose-response of Escherichia coli ATCC 11775 in ozone demand-free phosphate buffer solution and in a high quality secondary wastewater effluent with a total organic carbon content of 8 mg/L and a chemical oxygen demand of 26 mg/L. The studies were conducted in benchscale batch reactors for both water types. In addition, studies using secondary effluent also were conducted in a pilot-scale, semi-batch reactor to evaluate scale-up effects. It was found that the ozone dose was the most important design parameter in both types of water. Contact time was of some importance in the ozone demand-free water and had no detectable effect in the secondary effluent.
Pilot-scale data confirmed the results obtained at bench-scale for the secondary effluent. Regression analysis of the logarithm of the E. coli response on the logarithm of the utilized ozone dose revealed that there was lack-of-fit using the model form which has been used frequently for the design of wastewater disinfection systems. This occurred as a result of a marked tailing effect of the log-log plot as the ozone dose increased and the kill increased. It was postulated that this was caused by some unknown physiological differences within the E. coli population due to age or another factor. 相似文献