广西中央空调循环水处理设备★广东中央空调的循环水设备【给力2012】
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Central air-conditioning circulating water treatment equipment - central air-conditioning circulating water system includes cooling water system and refrigeration ( heating ) water system in two parts, in which the cooling water system for the open cycle system, and refrigeration ( heating ) water system for closed cycle system. Although the central air conditioning water system of the two segments each have a characteristic, but the same problems exist: they are using water as working medium, in external conditions ( such as temperature, velocity, concentration ) change, water quality is not stable state, scaling, corrosion can occur, such as biological slime phenomena, such as not appropriate water treatment, it will cause the blockage of the pipe, corrosion leakage, low heat exchange efficiency and a series of problems, affect the normal operation of central air conditioning system.
一、广西中央空调循环水处理设备系统存在的问题
在中央空调的循环水系统中由于水质不稳定而易引起系统结垢、腐蚀、生物粘泥及菌藻滋生等不良后果。
1 腐蚀
A.碳钢材质与水中的氧气作用而发生腐蚀,其反应如下:
Fe + O2 + H2O Fe(OH)3↓
B. Harmful ion induced corrosion
Central air conditioning circulating water in the condensation process, various salts concentration increased, while Cl and SO4ions concentration, will cause the metal surface protective film corrosion resistance reducing. Particularly the Cl ion radius is small