Why can boiler economizer save coal?

Why can a boiler economizer save coal?

It is reported that the heat loss of exhaust gas is the largest of the boilers heat loss, accounting for 60% to 70% of the boilers heat loss. The temperature of flue gas is the most important factor affecting heat loss. In general, increasing the temperature of flue gas by 10°C increases heat loss by 0.6%-1% and increases coal consumption by 1.2%-2.4%.

The new economizers heating body is an H-type finned tube with a side length roughly twice that of a light tube. The boiler fittings increase the heating surface while the finned tube uses flash resistance welding technology for good heat conduction performance. The traditional economizer generally guarantees a reduction in flue gas temperature of 30 - 35°C. The new economizers exhaust gas temperature can be reduced to 120°C, with a temperature drop of up to 100°C possible. Using a 10-ton boiler as an example, adding a finned tube economizer reduces the flue gas exhaust temperature from 210°C to below 150°C, increasing boiler efficiency by 5%. It saves approximately 1.44 tons of coal per day.

According to reports, our country has 500,000 industrial boilers with a total capacity of 1.8 million steam tons per hour. Every 1% increase in boiler thermal efficiency saves 11 million tons of standard coal and reduces more than 40 million tons of carbon dioxide. The economic and environmental advantages of popularizing and implementing the new economizer are astounding.

What boiler economizer included?

Economizer main parts: A-class boiler components, serpentine tube row, boiler header, D1, D2 pressure vessel, high and low pressure heater, spiral finned tube, H-type finned tube, various types of boiler economizer, H-type finned tube economizer, spiral finned tube economizer, coke dry quenching sub-economizer, various types of flue gas waste heat recovery (heat pipe) heat exchanger, high efficiency heat exchanger unit Double bellows heat exchanger unit, spiral plate heat exchanger, shell and tube heat exchanger, tube heat exchanger, floating coil heat exchanger unit and industrial hot air fan unit, etc. Undertake the replacement of primary cooler, final cooler, high and low pressure heat exchanger tube replacement, cleaning, maintenance and other businesses.

boiler economizer with H-type finned tube