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工业循环冷却水系统水质提升实践
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Abstract:
某天然气终端厂循环冷却水系统投入使用之后，水质逐渐恶化，水质综合达标率从95%下降到40%，导致冷却设备结垢、堵塞、腐蚀，严重影响冷却效果，还可能导致可燃介质泄漏进入循环水系统，影响生产安全。通过分析水质化验资料、冷却设备拆检、污物样品分析、微生物定性监测等手段，找到了诱发水质恶化的真因，并通过循环水系统改造、加药方式调整等措施，有效提升了该终端厂循环冷却水系统水质综合达标率，提升了换热设备换热效率，保障了生产安全，并为工业循环冷却水系统疑难问题处理提供了新思路。
After the circulating cooling water system of a natural gas terminal plant is put into operation, the water quality gradually deteriorates, and the comprehensive standard rate of water quality drops from 95% to 40%, which leads to scaling, blockage and corrosion of cooling equipment, which seriously affects the cooling effect, and may lead to the leakage of combustible medium into the circu-lating water system and affect the production safety. Through the analysis of water quality test data, cooling equipment disassembly and inspection, dirt sample analysis, microbial qualitative moni-toring and other means, the real cause of water quality deterioration was found. Through the im-provement of circulating water system and adjustment of dosing mode, the comprehensive water quality standard rate of the circulating cooling water system in the terminal plant was effectively improved, the heat exchange efficiency of heat exchange equipment was improved, and the production safety was ensured. It provides a new idea to solve the difficult problems of industrial circulating cooling water system.
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