直接空冷排汽管线防爆膜内爆原因分析

Cause Analysis of Direct Air-cooling Exhaust Steam Pipeline Explosion-proof Membrane Implosion

神华鄂尔多斯煤制油分公司热电生产中心#1汽轮机(NZK100-9.32/535)空冷排汽管线防爆膜真空支撑,在施工过程中安装监督和质量验收把关不严,设备运行中疏于检查维护。2010年#1机组空冷排汽管线防爆膜真空支撑凹陷,失去对防爆膜的支撑作用,导致防爆膜发生内爆事故,威胁机组的安全运行。本文针对上述异常现象进行了分析并提出解决方案。

Shenhua Erdos Coal-to-oil Branch Pyroelctricity Production Center No.1 turbine（NZK100-9.32/535） air-cooling steam turbine exhaust steam pipeline explosion-proof membrane vacuum support is lack ofstrict inspection in the process of installation supervision and quality acceptance, and failure to inspect inthe operation of the equipment maintenance. No.1 unit of air-cooling exhaust steam pipeline explosion-proofmembrane vacuum support sunken in 2010, losing support for explosion-proof membrane, led to the explo-sion-proof membrane implode accidents, which threatening the safe operation of unit. This thesis analyzesand provides solution to the above abnormal phenomenon.