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Why can't the water entering the boiler be "hard water"?

"Hard water" means water containing more, soluble, calcium-magnesium compounds. Regardless of whether you purchase a hot water boiler or a steam boiler, the boiler technicians will repeatedly emphasize that the water entering the boiler must be water treated soft water. Why is the boiler's water requirements so high?

In recent years, Hebei Province People's Government to respond positively to Blue Sky Battle action plan promulgated by the state, and all of 35t / h coal-fired boiler and below in the Hebei province out of the transformation process. First Hospital of Baoding respond positively to the call of the provincial government, eliminate serious pollution of the original coal-fired boiler hospital, citing energy saving steam boiler to natural gas as raw material. After a series of market research, WNS Series Split hospital condensing gas boiler boiler other fast soft spot.

Boiler water treatment boiler is a kind of industrial boiler. In recent years, with the approval of this kind of equipment, it has been applied in many industries. Practical application shows that it will be treated with water in the process of use. So, do you know what the reason for doing this is? Through the analysis, it is found that the main causes of boiler water treatment are as follows: 1. Prevent scaling and sludge accumulation; 2. Sulfate and silicon: sulfate and silicate often precipitate on boiler metal without forming sludge, which is more difficult to prevent precipitation; 3. Iron and sodium: dissolved or suspended iron also deposits on the metal surface. Due to the high solubility of sodium compounds, usually Deposit occurs only when water is nearly evaporated; 4. Hardness: salts of dissolved calcium and magnesium are called hardness. Hardness deposits on the surface of the pipe when water evaporates to produce steam. It is easy to precipitate because of the low solubility of calcium and magnesium compounds in water, which reduces the heat conduction and causes the tube metal to overheat. The hardness of natural water varies from several ppm to more than 500ppm, and the high pressure boiler can only allow 0 / 2 ppm.

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