大型LNG全容储罐珍珠岩在线填充分析与实践
Analysis and Practice of Online Filling of Perlite in Large LNG Tank
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- 引用格式:
-
童文龙,田连军,傅诚铁,钟海.大型LNG全容储罐珍珠岩在线填充分析与实践[J].天然气与石油,2019,37(1):87-93.doi:10.3969/j.issn.1006-5539.2019.01.015
Tong Wenlong, Tian Lianjun, Fu Chengtie, Zhong Hai.Analysis and Practice of Online Filling of Perlite in Large LNG Tank[J].Natural Gas and Oil,2019,37(1):87-93.doi:10.3969/j.issn.1006-5539.2019.01.015
- DOI:
- 10.3969/j.issn.1006-5539.2019.01.015
- 作者:
- 童文龙1 田连军1 傅诚铁2 钟 海1
Tong Wenlong1, Tian Lianjun1, Fu Chengtie2, Zhong Hai1
- 作者单位:
- 1. 广东珠海金湾液化天然气有限公司,2. 中海福建液化天然气有限公司
1.Guangdong Zhuhai Golden Bay LNG Ltd； 2.CNOOC Fujian LNG Co., Ltd
- 关键词:
- 大型LNG全容储罐;珍珠岩;沉降;在线填充
LNG storage tank; Perlite; Settlement; Online filling
- 摘要:
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大型LNG全容储罐常采用珍珠岩进行绝热保冷,投用后由于运行时间累积、储罐压力波动、罐内设备启停及卸料过程中引起的震动等,储罐内、外罐间珍珠岩会出现不同程度的不均匀沉降,若不及时处理将影响储罐保冷效果,严重时将损坏储罐内部结构,对生产运营造成较大安全隐患。结合珠海LNG接收站对大型LNG全容储罐珍珠岩在线填充实践,开展珍珠岩填充置换装置、储罐压力控制、珍珠岩填充高度、评估方式等分析研究,探讨LNG全容储罐珍珠岩沉降表象及其在线填充过程控制,总结大型LNG全容储罐珍珠岩在线填充方法和经验,为其它LNG接收站全容储罐开展珍珠岩在线填充提供参考。
Large LNG tanks are insulated by perlite.The accumulation of running time, the fluctuation of tank pressure, the vibration caused by the start-up and shutdown of equipment in the tank and the unloading process will lead to the uneven subsidence of perlite in varying degrees.If not handled in time, it will affect the cooling effect of the storage tanks and damage the storage tanks seriously. Based on the on-line filling practice of perlite in large LNG tank at Zhuhai LNG receiving station, the perlite filling replacement device, pressure control of storage tank, filling height of perlite, and practical evaluation methods are analyzed and studied.The perlite settlement representation of LNG storage tanks and the control of on-line perlite filling process are discussed.The on-line perlite filling method and experience of large LNG storage tanks are summarized, which provides reference for carrying out perlite online filling by other LNG receiving stations.
