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我市莆田糖厂有四台20吨/时,工作压力为25kgf/cm~2的水管锅炉,从80年以来,由于锅炉水质没有严格控制,给水含氧量超标。比如82—83榨季,锅炉运行仅80多天,给水含氧量记录483次,就有71次含氧量记录超过0.05mg/l的,而其中绝大多次的含氧量接近为0.2mg/l左右。榨季开始、结束的多天时间内,因为热力除氧器缺乏汽源和供汽不稳定,给水含氧量都普遍超标。其次是该厂的炉水指标下达不切合实际,炉水碱度仅为3—6mgN/l,
Putian City sugar factory has four 20 tons / hour, the working pressure of 25kgf / cm ~ 2 water tube boiler, from 80 years, the boiler water quality is not strictly controlled, oxygen content of water exceeded. Such as the 82-83 crop season, the boiler operation is only 80 days, record 483 times the oxygen content of water, there are 71 times the oxygen content of more than 0.05mg / l, of which the vast majority of oxygen content is close to 0.2mg / l or so. The beginning of the crop season, the end of the multi-day time, because the lack of thermal deaerator gas supply and steam instability, the water oxygen content are generally exceeded. Followed by the factory’s furnace water indicators issued unrealistic, furnace water alkalinity of only 3-6mgN / l,