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锅炉在运行中,由于锅水不断地蒸发、浓缩,使水中的含盐量不断增加。同时,锅筒底部的炉水所含的泥渣、水垢等沉积物的浓度也越来越高。通过定期或连续排污,可使锅筒内的泥渣等沉积物随炉水排出炉外,防止锅筒中集结水垢,影响锅炉的水循环和传热效率,从而保证锅炉安全、平稳、经济的运行。但是,排污水中除含有少量的水垢、泥沙等沉积物以外,绝大部分是含有大量热量的软化水。这部分水的排放,造成了热量和水的浪费。从而使吨蒸汽的费用升高。用汽量越大,排污的次数越多,所造成的热量及水的浪费就越大。因此,对这部分排污水加以回收利用,
Boiler in operation, as the pot of water continue to evaporate, concentrated, so that the water salinity continued to increase. In the meantime, the concentration of sludge, scale and other sediments contained in the boiler water at the bottom of the drum is also getting higher and higher. Through regular or continuous blowdown, the sludge and other sediments inside the drum can be discharged out of the furnace with the furnace water to prevent the scale from accumulating in the drum, affecting the water circulation and heat transfer efficiency of the boiler, thereby ensuring the safe, steady and economical operation of the boiler. However, in addition to the sewage water contains a small amount of sediment, sediment and other deposits, the vast majority of the demineralized water contains a lot of heat. This part of the water discharge, resulting in heat and water waste. Thus increasing the cost of a ton of steam. The greater the amount of steam used, the more the number of sewage, resulting in greater heat and water waste. Therefore, this part of the sewage water to be recycled,