一、蒸汽管道直埋保温材料应具备的性能 蒸汽管道与热水管道不同。蒸汽管道的温度较高、伸缩较大,产生的推力也比较大。蒸汽管道容易产生凝结水,如果凝结水不及时从管道中排出,容易产生“水击”,损坏管道,而热水管道在正常运行中一般不存在这样的问题。因而蒸汽管道直埋时,所用保温材料 First, the steam pipe directly buried insulation material should have the performance of steam pipes and hot water pipes are different. The temperature of the steam pipe is high and the expansion and contraction are large, and the thrust generated is also relatively large. Steam pipes are prone to condensate. If condensate is not drained from the pipe in time, “water hammer” is easily generated and pipes are damaged. However, such problems do not exist in normal operation of hot water pipes. When the steam pipe is buried directly, the insulation material used