The auxiliary equipment of vacuum hot blast stove is reduced, and the operation cost of electricity consumption and maintenance cost is reduced directly. 2. The heat exchanger of the vacuum hot blast stove is built in. The hot stove body does not scale and the thermal efficiency does not decay. (3) Vacuum hot blast stove has built-in heat exchanger, direct heating system circulating water, small volume of hot blast stove, less heat medium water and small heat capacity, so thermal inertia is small, part load operation efficiency is high, and 70% of hot blast stove operation time is running under 50%~75% load. Therefore, when the vacuum hot stove is used, the operation cost is greatly reduced. ⑷、真空成都找人公司热效率为91%;传统成都***热效率为90%左右，板式换热器效率为94%左右，二者相连组成成都找人公司供热一次和二次换热系统，总体效率为90%×94%=84.6%.因此真空成都***比传统热风炉成都收账板式换热器收账一次和二次系统分别换热运行总体热效率提高6-7%,效率提高引起燃料费用减少，从而节约运行费用。
(4) The thermal efficiency of vacuum hot-blast stove is 91%. The thermal efficiency of traditional hot-blast stove is about 90%. The efficiency of plate heat exchanger is about 94%. The overall efficiency of the primary and secondary heat exchanger system is 90%*94%=84.6%. Therefore, the vacuum hot-blast stove runs separately from the primary and secondary heat exchanger systems of traditional hot-blast stove. The overall thermal efficiency is increased by 6-7%, and the efficiency increases, resulting in reduced fuel costs, thereby saving operating costs.
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