多年冻土地区的消防系统设计方案探讨

Discussion on design scheme of firefighting system in permafrost area

季节性温度变化导致土壤出现冻胀和消融现象,导致地埋管道出现冻胀和破损现象,因此针对多年冻土存在的主要问题开展多年冻土环境消防系统研究很有必要。本文总结多年冻土设计难点和国内外多年冻土地区管道设计的工程经验,并提出多年冻土地区消防管道设计的合理方案,特别是多年冻土地区埋地消防管道保温层厚度的设计。利用Ansys软件进行模拟分析,结合工程实际利用稳态热和瞬态热法模拟计算,提出更加安全和高效的设计方案,以期可为多年冻土消防系统设计提供参考。

Seasonal temperature changes cause soil frost heave and ablation phenomenon,which lead to phenomenon of frost heave and damaged in buried pipeline,thus it is necessary to study fire protection system of permafrost environmentin view of the main problems existing in permafrost.In this paper,the design difficulties of permafrost and abroad experience of pipeline design engineering are summarized,and the reasonable plan of fire pipeline design in the permafrost region is put forward,especially the design of insulation layer thickness of buried fire pipeline in the permafrost.The simulation analysis is conducted using ANSYS software,and the simulation calculation is carried out by using steady-state heat and transient heat methods in combination with engineering practice,so as to put forward a safer and more efficient design scheme,which can provide references for the design of high altitude fire fighting system.