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以前,一般的锅炉满水保护法程序复杂,需调整pH值等不稳定因素。为了克服这些缺陷,目前已研究出在锅炉停止运转状态下充氮保护法。一、充氮目的 1.提高炉水中的pH值,与通常方法相同,为10～11。 2.为不使锅炉内部在冷却过程中出现真空,用充入氮气进行加压,防止氧气从外部漏入。假如使加压的氮气与锅炉内部降压相平行进行,就可以完全隔绝氧气,不会出现氧气的腐蚀作用。充入氮气参照附图。氮气从氮气瓶经调节器减
In the past, the general procedure of boiler full water protection law was complicated and unstable factors such as pH value needed to be adjusted. In order to overcome these shortcomings, nitrogen protection has been studied in the state that the boiler is shut down. First, the purpose of nitrogen 1. Boiler water to improve the pH, and the usual method for the same, for 10 ~ 11. 2. In order not to make the interior of the boiler in the process of cooling a vacuum filled with nitrogen to prevent leakage of oxygen from the outside. If the pressurized nitrogen and boiler internal pressure parallel to carry out, you can completely isolate the oxygen, there will be no corrosion of oxygen. Fill in nitrogen with reference to the attached drawings. Nitrogen from the nitrogen bottle by the regulator