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某些电厂余热锅炉的省煤器和给水加热器比其他省煤器更频繁地遭遇管道故障,这是因为电厂的业主为了获取更大的利益将机组带基本负荷转换到启停式运行,以便充会利用电力销售良机。而余热锅炉在这种循环性运行状态下,会受到热应力、水化学(尤其是溶解氧)以及其他因素的影响,从而导致省煤器管道故障。文章对导致省煤器管道故障的具体原因进行分析。
Economizers and feedwater heaters in some plant waste heat boilers experience pipeline failures more often than other economizers because power plant owners switch their basic load to on-off operation in order to be more profitable, so that Will make good use of electricity sales opportunities. The waste heat boiler in this state of circular operation, will be thermal stress, water chemistry (especially dissolved oxygen) and other factors, resulting in economizer pipeline failure. The article analyzes the specific causes of economizer pipeline failures.