LLTE Boiler Economizer Low Low Temperature Boiler And Economizer OEM
Product Details
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Product Description
High-Efficiency Low-Low Temperature Economizers (LLTE) for Thermal Power Plants
| Specification | Technical Details (Utility-Scale Boilers) |
| Installation Location | Tail flue, between APH and ESP |
| Gas Inlet Temperature | 120°C to 150°C (248°F to 302°F) |
| Gas Outlet Temperature | 85°C to 95°C (185°F to 203°F) |
| Tube Metallurgy | ND Steel (09CrCuSb), 316L, Fluoroplastic-Coated |
| Fin Type | H-Type Finned Tubes, Spiral Finned Tubes |
| Key Performance Feature | Reduces plant heat rate, improves ESP efficiency, saves water in FGD |
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How does the LLTE improve the performance of the Electrostatic Precipitator (ESP)?Lowering the flue gas temperature from ~130°C to ~90°C reduces the total gas volume, which decreases the flow velocity inside the ESP, giving it more time to collect dust. More importantly, it lowers the electrical resistivity of the fly ash, preventing "back corona" and allowing the collection plates to capture particles much more effectively.
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How do you prevent rapid failure from sulfuric acid dew-point corrosion?We counter severe cold-end corrosion by utilizing ND steel, which forms a dense, passivated copper-antimony rich layer when exposed to sulfuric acid, significantly slowing the corrosion rate. For the most extreme sulfur environments, we offer fully polymer-coated (fluoroplastic) heat exchanger tubes.
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Does the LLTE save water in the plant?Yes. Because the flue gas enters the downstream Flue Gas Desulfurization (FGD) scrubber at a much lower temperature, the evaporative water loss within the scrubber tower is drastically reduced, saving millions of gallons of make-up water annually.
Product Highlights
High-Efficiency Low-Low Temperature Economizers (LLTE) for Thermal Power Plants Usage and Application The Low-Low Temperature Economizer (LLTE) is an advanced deep waste heat recovery system installed in the tail flue of modern thermal power plants, typically positioned between the air preheater ...
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