Low-temperature economizer
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The flue gas temperature of power plant boilers is generally between 120°C and 140°C. Boiler flue gas represents a source of waste heat with great potential; if this temperature can be reduced, coal consumption can also be significantly lowered. Installing a low-temperature economizer in the flue at the rear of the boiler enables the efficient recovery of waste heat from the flue gases, increases power generation, reduces coal consumption, and saves water used for desulfurization; this holds great practical significance and value for energy conservation and emission reduction. So, what are the advantages of low- and sub-low-temperature economizers? Which domestic company has better technology?
If the flue gas temperature is too low, will exhaust emission be affected negatively?
The heating surface tubes in the tail flue are subject to low-temperature corrosion.
There’s nothing to do about it; the temperature of the smoke is just that.
For mature economizer products, as long as quality is not compromised by cutting corners, domestic manufacturers are capable of producing them. The main difference lies in the thermal calculations; some products are designed to be lighter while others are heavier, which results in varying prices. If your company decides to proceed, have multiple manufacturers prepare proposals and compare them
Some power plants are equipped with rotary warm air heaters.
Longjing, it won’t suffer from dew point corrosion; the temperature drops to 90 degrees
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