One,Desulfurization Flue Gas Damper Product Overview
The double-layer louvered damper for flue gas desulfurization is designed for use in the inlet and outlet or bypass flue gas ducts of the desulfurization system's absorption tower, or in flue gas denitrification and dust removal systems. The dampers typically feature a double-layer louvered damper structure, which, when closed, introduces a seal between the double layers to effectively cutoff flue gas flow.
Section II: Performance Features of Smoke Shutter
The company has adopted a single-axis-driven double-blade shutter damper structure. The double-layer blades are designed with a sealed chamber in the middle to allow the introduction of sealed air at a pressure higher than that of the flue gas by 500Pa. This creates a sealed air layer between the double dampers, reducing the flow of flue gas.
2. Wind door opening and closing time ≤ 60S (time can be selected according to customer requirements).
3. The external design features a linkage mechanism, enabling simultaneous opening or closing of multiple blades.
4. The double-louvered shutter door design features a rational structure, rigid blades, and stable operation. The sealing types of the louver blades are: elastic sealing and air sealing.
The double-plate design features a sealed air inlet valve, ensuring high sealing efficiency after introducing sealed air.
6. Features adjustable and isolating, with flexible adjustments and excellent isolation performance.
7. Drive units are typically connected and installed with the wind gate using a direct-connection style.
8. The electric device utilizes mechatronic products, featuring torque protection and limit switches for remote control operations. Additionally, the electric device is equipped with manual/electric switching functionality for installation, debugging, and maintenance purposes.
9. Connection methods for air gates and pipes: Flanged seal weld connection or flanged bolt connection.
10. Our company can provide a complete set of sealing fans and electrical heaters for the sealed air system, upon our selection.
Section 3: Desulfurization Flue Gas Damper Technical Parameters
Chimney cross-section: D (width) × W (height) × L (thickness)
2. Applicable Media: Cold and Hot Flue Gases
3. Temperature Resistance: ≤300℃
Design Pressure: ±8500 Pa
5. Leak Rate of Smoke Inside and Outside: "0"
6. Drive Methods: Electric or Pneumatic
7. Power and control requirements: selected by the user.
Section 4: Flue Gas Desulfurization Damper Supply Scope
The sealed fan and electric heater are available as complete sets, including the fan body, sealing fan inlet valve, drive unit (electrical or pneumatic), and other accessories.
Section 5: Ordering Instructions for Smoke Shutter
Provide the flue interface dimensions and the installation location of the pipe (either horizontal pipe or vertical pipe).
2. Flue Gas Parameters
3. Shutdown and startup timing requirements
4. Connection Methods: Flange flat welding or flange bolt connection.
5. Corrosion-resistant material requirements (nickel-based alloys or acid-resistant stainless steel)
Operation Method: Electric or Pneumatic (brand of drive unit required)
7. The application and location of the wind gate within the pipeline.
8. Prior to ordering, the supplier shall provide the installation general layout for the customer's confirmation.
Section 6: Desulphurization Damper Door Description
The air door is designed and manufactured using Q235 outer material with a 316L inner layer due to the corrosiveness of sulfur dioxide inside the air duct, offering features such as heat and corrosion resistance.
2. To prevent warping of the air door panel at high temperatures, reinforced ribs are placed between the double-layer panels. The single-layer panel thickness is 5mm, and the total thickness of the air door is 600mm. The shaft head, shaft liner, sleeve, and shaft are all made from several different corrosion-resistant materials.
The electric device is integrated with the wind door shaft, forming a seamless connection. The air leakage rate is less than 0.1% when closed.
4. The electric device is equipped with a multifunctional limit switch, ensuring accurate and reliable operation.
The distribution cabinet is equipped with a DCS interface, achieving automated operation.
6. Features adjustable and isolated common use, flexible adjustment, and excellent isolation performance.
7. The switch operates smoothly with no sticking or jamming, and there are no internal or external leaks, as well as good shaft sealing.
High level of automation with remote, close-range, and manual operation capabilities.
The manufacturing process adheres to relevant industry standards.
