论文部分内容阅读
发电厂的燃煤锅炉,其部件的磨耗是它的折旧费用中很大的部分。在锅炉大修中有将近一半或甚至更多的工作量是用在易磨部件的检修和更新上的,这类部件主要的有磨煤机、排粉机、输粉管道、煤粉喷口、除尘和除灰装置、吸风机等。但是从磨损对国民经济造成的危害性来看,则锅炉受热面(承压管件)的磨损是最大的。如12.5万瓩单元机组的一次受热面磨破漏水事故,因而停炉三天临时检修,将使该机组少供电8×10~6度以上,对工农业生产造成的间接损失,更难以估量了。因此防止受热面的磨损事故是自有煤粉炉以来一直为电厂锅炉工作人员所
Power plant coal-fired boilers, the wear of its components is a large part of its depreciation costs. Nearly half or even more of the work in the overhaul of the boilers is used for overhaul and renewal of the wear parts, which are mainly pulverizers, discharge mills, pipelines, pulverized coal nozzles, dust removal And ash removal device, suction fan and so on. However, from the danger of wear and tear on the national economy, the boiler heating surface (pressure pipe) wear is the largest. Such as 125,000 瓩 unit unit of a heated surface grinding leakage accident, so shut down three days of temporary maintenance, will make the unit less power supply 8 × 10 ~ 6 degrees above, indirect losses caused by industrial and agricultural production, more difficult to measure . Therefore, to prevent the heating surface wear accident is its own coal-fired boiler has been for the power plant boiler staff