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有没有给循环水系统加过防冻液的？效果如何，成本高不高？
循环水正常不是要循环吗？ 是有死角怕冻吗？那加个小旁路也可以 防冻液成分 无机物可能结垢结晶；有机物的话，那就更耗药了
闭式循环水系统加防冻液（一般用乙二醇）是可以的，开式循环水系统加防冻液是不可行的，因冷却塔的雾沫夹带较多，会损失冷冻液，还会带来污染。
没这么干过。除非是小系统，一般循环水都是温度比较高，只要有流动就行。局部不行旁通、隔热保温、伴热。
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