摘要：为了确保锅炉运行的安稳，防止锅炉金属的腐蚀，除了要做好锅炉补给水的处理和锅炉机组的水质调整处理之外，对锅炉进行清洗的种类、酸洗清洗剂分类、缓蚀剂作用和选择以及化学清洗的质量要求。
关键字：锅炉碱煮；酸洗缓蚀剂；酸洗
为了确保锅炉运行的安稳，防止锅炉金属的腐蚀，除了要做好锅炉补给水的处理和锅炉机组的水质调整处理之外，对锅炉进行清洗以除去锅内的沉积物，也是重要的防护措施。
清洗方案的确定，实际上是按如下步骤进行的：一是确定清洗范围；二是根据锅炉结构、垢量和清洗材质、清洗范围确定清洗介质；三是通过小试确定清洗条件。一般基建炉清洗炉本体所用介质为盐酸。
盐酸酸洗时，不但可将沉积物和垢溶解，还可使附着物从金属表面脱落下来。一般钙镁水垢易溶于盐酸中。盐酸与锅炉垢物和氧化皮接触时，酸与金属基体交界处垢层中某些物质发生较强的反应，有助于垢层和氧化皮成片脱落。有清洗系统简单，临时工作量小，工艺操作方便，对用于系统要求不高；hci清洗废液处理简单，合格快；清洗费用比其他工艺低；清洗适用范围小，限于炉本体。
盐酸酸洗缓蚀剂的作用就是减缓盐酸酸洗过程中金属的腐蚀，保证被清洗金属在酸洗除垢的同时不遭受酸液的腐蚀破坏。选用缓蚀剂要考虑到多方面的条件，包括化学清洗介质的种类、介质的浓度、ph值、温度范围、介质流动情况、介质中氧化性离子的浓度、化学物质的性质及其对环境的污染、被清洗设备的金属材料和金属的初始表面状态等。
需要注意新建锅炉、运行后的汽包锅炉和直流炉，一般采用碱洗或碱煮。目的是用来除去锅炉在制造和安装过程中，厂家涂覆在内部的防锈剂及安装时沾染的油污和硅化物等附着物，给下一步酸洗创造有利条件。
优良酸洗缓蚀剂厂家具备：除垢效果好，腐蚀较低，对被清洗的金属材质无损坏，钝化膜质量好；货源充足、价格适宜、操作简便，废液易于处理，有后续用药跟踪指导。
同时针对不同的酸洗有对应不同的缓蚀剂。
产品英文详情介绍
abstract: in order to ensure the stable operation of the boiler, the boiler to prevent corrosion of metals, in addition to the water quality adjustment process to do the boiler feed water treatment and boiler units, the type of boiler cleaning, acid cleaning agent classification, corrosion inhibitors action selection and quality requirements and chemical cleaning. keywords: boiler alkali cooking; pickling; pickling in order to ensure the stable operation of the boiler, the boiler to prevent corrosion of metals, in addition to the water quality adjustment process to do the boiler feed water treatment and boiler units for boilers washed to remove sediment pot, it is an important protective measures. determining the cleaning solution, in fact, it is performed as follows: first, determine the range of cleaning; second is based on the boiler configuration, the amount of dirt and cleaning materials, clean washing medium range determination; third determined through small washing conditions. infrastructure furnace cleaning furnace body generally used medium is hydrochloric acid. when hydrochloric acid, can not only dissolve the deposits and dirt, so that the deposit may peel off from the metal surface. usually calcium and magnesium scale soluble in hydrochloric acid. hydrochloric acid when contacted with a foulant and boiler scale, some substances to a strong acid with a reaction layer of scale at the junction of the metal substrate, and the oxide scale layer contributes to the off-chip. the cleaning system is simple, small temporary workload process easy to operate, less demanding for the system; the hci washing waste liquid treatment easy, fast qualified; cleaning expensive than other processes; suitable cleaning small, limited to the furnace body. hydrochloric acid pickling inhibitor role is to slow down the process of metal corrosion in hydrochloric acid, and guaranteed to be clean metal not subject to corrosion in acid pickling descaling while destruction. inhibitor selected taking into account various conditions including the type of chemical cleaning medium, medium concentration, ph, temperature ranges, flow medium, the concentration of ions in oxidative medium, and chemical nature of the environment contamination, the initial surface state of the cleaning apparatus and the like of a metal material and a metal. note that the new boiler, the boiler drum and a dc furnace operation, or commonly used caustic alkali cooking. purpose is to remove deposits in the boiler during manufacture and installation, factory coated contaminated when mounting inside the oil anti-rust agents and silicide, to create favorable conditions for the next pickling. pickling excellent manufacturers comprising: cleaning effect, low corrosion, no damage to the metal material to be cleaned, good quality passivation film; adequate supply, affordable, easy to operate, easy waste treatment, follow-up treatment tracking guidance. at the same time there are different pickling corresponding to different corrosion inhibitor.
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