WNS horizontal fuel gas ultra-low nitrogen steam boiler

The WNS series fully automatic fuel and gas steam boilers adopt a horizontal three return wet back structure to improve the operating environment, increase boiler efficiency and service life; All smoke channels are placed in water, and the tail is equipped with a finned tube condenser and insulation outer design. The sealing of the smoke box adopts a labyrinth structure to avoid smoke leakage; The combination of corrugated and conical furnace liners with expansion properties on the inner and outer cylinders, combined with flame diffusion, reduces the flow area of flue gas in sequence, ensuring constant velocity flow of flue gas and guaranteeing the heat exchange time of high-temperature flue gas in the furnace, achieving special heat transfer effect; The condenser device has a good effect; The Siemens combustion controller can optimize ignition time, automatically adjust combustion status, make combustion more complete, save fuel, reduce NOx emissions, and lower pollution; Equipped with YLZK-X7S energy-saving control system, it controls the boiler and steam supply system, and adjusts fuel supply according to different loads; The installation method of WNS furnace type is a whole quick installation boiler, with low vibration, no special requirements for the foundation, and no need for anchor bolts to fix, which is simple and easy to implement.

The host adopts an active furnace head structure, which can be matched with various burners. Replacing the furnace head and repairing the furnace body are convenient and fast; The front and rear smoke boxes adopt a movable and detachable structure, which can easily inspect, maintain and upkeep the interior of the boiler. It is simple and convenient, with a reasonable product design and good process performance.

main features

1. The design, production, manufacturing, supervision and inspection of boilers are strictly carried out in accordance with the "Safety Supervision Regulations for Steam Boilers", JB/T10094-2002 "General Technical Conditions for Industrial Boilers", and JB/T 1619-2002 "Technical Conditions for Manufacturing Shell Boiler Bodies" to ensure the long-term safe and stable operation of boilers.

2. The main body is a pot shell type fully wet back flow three-way smoke and fire tube structure. The flame burns under slight positive pressure in a large combustion chamber, fully extending, with low combustion heat load, low harmful substance NOx emissions, large effective radiation heating surface, and a high proportion of furnace radiation heat absorption to total heat absorption.

3. The structure of the waveform furnace liner and threaded smoke tube not only improves strength, but also meets the needs of thermal expansion in various parts.

4. The main welds are all connected by butt joints and undergo X-ray and ultrasonic non-destructive testing to ensure that the welding quality meets the requirements of the steam specification.

5. The boiler has a large water volume and gas space, and has strong adaptability to load. A well-designed pot device with low steam carryover rate meets users' high requirements for steam quality.

6. Adopting a new type of thermal insulation material, it is lightweight, has less heat loss, and has good insulation performance.

7. The water level alarm adopts stainless steel sensors and polytetrafluoroethylene as insulation material. Inserted from above, it is not easy to get dirty, reliable in performance, and has a long service life.

8. The front and rear cigarette boxes are connected by hinges, which can be easily opened for convenient and fast maintenance and repair.

9. Oxygen content adjustment (optional): This function monitors the oxygen content in the flue gas and transmits the data in real time to the control system. Through computer intelligent analysis, it automatically adjusts the ratio of the combustion equipment, making it in good working condition in real time, greatly improving combustion efficiency, and thus significantly reducing fuel consumption.