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热水锅炉特别是供暖锅炉是供热系统的心脏,其使用寿命和运行成本对供热成本有很大的影响。影响这些锅炉使用寿命和运行成本有许多方面。1)锅炉出水直接供热用户,循环水温与锅炉水温相差不多,因此在锅炉的各个受热面上存在着不同程度的酸性腐蚀,每年的腐蚀速度在0.5mm以上,基本是每4年更换受热面一次。2)为了防止锅炉内腐蚀,在GB 1576《工业锅炉水质标准》规定循环水的pH值控制在10以上,由于锅炉水直接进入热网,每天的补水量大,管网的失
Hot water boilers, especially heating boilers, are the heart of heating systems, and their useful life and operating costs have a significant impact on heating costs. There are many aspects that affect the useful life and operating costs of these boilers. 1) The boiler water is directly supplied to the user. The circulating water temperature is about the same as the water temperature of the boiler. Therefore, there are different degrees of acid corrosion on the various heating surfaces of the boiler. The annual corrosion rate is above 0.5mm, basically every 4 years. once. 2) In order to prevent corrosion in the boiler, the GB 1576 “Industrial Boiler Water Quality Standards” provides circulating water pH control in 10 or more, as the boiler water directly into the hot net, the daily replenishment volume, pipe network loss