Frequent leaks in the steam generation section of the hydrochloric acid furnace
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As the title suggests, the factory where I work uses a four-in-one hydrochloric acid furnace of the Nantong Huanaitai ZFL110-120t type (which generates steam as a by-product). The pressure of this by-product steam is 0.65 MPa. However, since it was put into operation, leaks have occurred frequently in the areas where the steam is generated, mainly at the elbows and pipe welds; leaks have also taken place in the furnace itself. I wonder if other sailors have encountered the same problem and if there are any solutions.
Is the water used for your waste steam deoxygenated? If deoxygenation is not carried out, and the operating pressure and temperature are low, problems are likely to occur
Yes, we also referred to the measures used for steam boilers, which involve heating and deoxygenating the make-up water (to around 90°C), but it seems that this approach isn’t very effective. Is the temperature not high enough? Are there any better deoxygenation methods?
Also, is the water used in your boilers free of cations only? If it’s just the cations, it’s better to analyze the situation of anions in your water quality. If the levels of anions are high, the pH value of the water will become acidic after it circulates at high temperatures in the furnace, and this can have an impact on the welding machine
What is your gas production volume? I’ll equip you with a deaerator
I was wondering if Haiyou Company has managed to resolve its issues. If the company wishes to address its production problems, we can provide relevant technical services to help it overcome those challenging issues in production. Of course, this also depends on your company’s willingness and preferences
For soft water deoxidation in synthesis furnaces, it is possible to add an appropriate amount of sodium sulfite to see its effect. Additionally, water quality should be tested to assess its conditions, and the material of the pipes should be checked; boiler steel is the best choice. After installation, inspections should be carried out to verify the quality of the welding； Additionally, check whether overheating occurs in the areas of the synthesis furnace that are prone to leaks, comprehensively determine the main causes, and specify corrective measures.
You can try adjusting the pH of the boiler water to around 11
Just make the outlet pipe thicker. Regular wall thickness measurement