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How does the economizer improve boiler utilization?

According to reports, the heat loss of the boiler is the largest heat loss of a boiler, generally about 5% to 12%, accounting for heat loss of 60% to 70% of the boiler. The main factors that affect the heat loss of the exhaust gas are the exhaust gas temperature. Under normal circumstances, the exhaust heat temperature increases by 0.6% to 1% for every 10 ℃ increase in exhaust gas, and 1.2% to 2.4% of the coal is consumed.

The new type of economizer uses H-type finned tube as the main body of the heat, the side length of about 2 times the light pipe, boiler accessories to expand the heating surface, while the fin tube with flash resistance welding process, with good thermal conductivity. Conventional economizers generally only ensure that the smoke temperature is reduced by 30 to 35 ° C. The temperature of the new economizer can be as low as 120 ° C and the temperature drop is above 100 ° C. To a 10-ton boiler, for example, the installation of finisher economizer, the exhaust temperature from 210 ℃ down to 150 ℃ below the boiler efficiency increased by 5%, 1.44 tons of coal a day, the annual cost savings of nearly 300,000 yuan The

It is reported that the boiler auxiliary machine China has 500,000 industrial boilers, the total capacity of 1.8 million tons / ton, the boiler thermal efficiency for every 1% increase, you can save 11 million tons of standard coal, reduce carbon dioxide emissions more than 4000 million tons, The economic benefits and environmental benefits of the new economizer are very significant.