WNS steam boiler of Beijing Daoxiangcun Food Co., LTD

Description

We have successively installed seven WNS steam boilers for the Changping and Bazhou factories of Beijing Daoxiangcun Food Co., LTD., providing steam for the food production workshops. The equipment has been operating stably and has received high praise from the customers.

Core advantages

1. It adopts a three-pass fully wet-back structure, with a unique front and rear smoke box design and manufacturing process. It uses a large furnace full mixed combustion and high-efficiency low-resistance spiral smoke tube heat transfer technology, and is equipped with a high-efficiency condenser, achieving a thermal efficiency of over 98%.

2. A larger water volume was adopted in the design, maintaining a large safe water level range. This results in a large steam evaporation surface and a low steam moisture content, ensuring steam quality and effectively reducing the impact of sudden changes in load on the steam-using side on the water level inside the furnace.

3. 100% water-in-fire integrated design to prevent damage to the smoke box due to excessively high smoke temperature. The water level control system is accurate and sensitive, with interlock protection. Multiple overpressure alarm protection devices ensure the safe operation of the boiler

4. Fully automatic PLC control, high-definition touch screen display, one-key start and stop, automatic load adjustment, and interlock protection for various faults.

5. The furnace chamber is optimally designed to perfectly match the flames of various burners. It adopts flue gas external circulation (FGR), with NOx < 30mg/m³.

6. The overall annealing process eliminates the stress generated during the welding process, effectively enhancing the reliability and service life of the boiler's pressure-bearing components. The large furnace tube structure is matched with the burner, preventing the flame from eroding the furnace tube.

7. The design of the movable integral front and rear smoke boxes facilitates the maintenance and upkeep of the boiler.

Construction and Performance

1. The furnace tube adopts a corrugated structure, which not only increases the area for radiation and convective heat transfer but also meets the need for free expansion of the furnace tube after being exposed to high-temperature radiation.

2. According to the flame sizes of various burners, the furnace size has been specifically optimized. The furnace and the burner flame are perfectly matched, effectively suppressing the formation of NOx and preventing high-temperature flue gas from directly eroding the furnace tube. Combined with thermal engineering tests, the radiant heating area of the furnace and the convective heating area of the smoke tubes were reasonably allocated, which prolonged the service life of the boiler and improved its thermal efficiency.

3. It adopts a superior three-pass fully wet-back structure, featuring excellent heat exchange performance and a long service life. The unique front and rear smoke box design and manufacturing process, with an internal labyrinth-type heat insulation device, an external U-shaped slot hinge design, and an overall steel panel, is heavy and sturdy, effectively reducing heat dissipation loss and improving the boiler's thermal efficiency.

4. The insulation adopts a structure of high thermal resistance aluminosilicate fiber + fireproof aluminum foil heat reflection film + insulation cotton, which has a low thermal conductivity and excellent insulation effect.

5. The appearance, meticulously designed by professional industrial styling designers, is novel and unique yet harmonious with the surrounding environment, completely transforming the bulky image of industrial boilers. The surface is sprayed with high-grade environmentally friendly paint, with pure color, water resistance and scratch resistance. The front and rear surfaces of the furnace are coated with high-temperature matte paint, which is smooth and beautiful, sturdy and durable, and easy to maintain and service.