WNS integrated condensing steam boiler

1. Triple return structure: Adopting the internationally popular pot shell triple return and fully wet back structure, the combustion chamber is designed with a large volume to ensure more complete combustion. The fuel burns under slight positive pressure inside the furnace, and the high-temperature flue gas enters the flue tube bundle through a 180 ° bend in the combustion chamber along the furnace, and then enters the second tube bundle through a 180 ° bend in the compressed front smoke box. After convective heat exchange, it is discharged into the atmosphere.

2. Waveform furnace chamber: The combustion chamber adopts a fully corrugated furnace chamber structure, which not only enhances the disturbance of flue gas, but also increases the radiation heat transfer area; It not only increases the stiffness of the furnace liner, but also effectively reduces the expansion stress of the furnace liner; It not only enhances the heat transfer effect, but also promotes the combustion of fuel in the furnace.

3. Unique welding process for smoke tubes and tube sheets: using advanced technology of pre expansion, full welding, and then expansion joint, which not only prevents corrosion of tube gaps but also enhances welding strength; By using threaded smoke pipes with high heat transfer coefficients, the convective heat transfer effect is enhanced, the exhaust gas temperature is reduced, and the thermal efficiency of the boiler is improved.

4. Symmetrical hinged front and rear smoke doors: easy to open, convenient for maintenance and cleaning.

5. The boiler adopts a wet back structure with fully butt welded edges, high reliability, and low maintenance costs.

6. The design of the rearview device facilitates the observation of combustion conditions.

7. Design multiple protection functions such as overheating, overpressure, water shortage, leak detection, and shutdown to ensure safe and reliable operation of the boiler.