The condensing hot water boiler adopts a low-stress horizontal wet-back internal combustion flue gas two-pass structure, equipped with an air preheater and an energy-saving condensing integrated machine. The condensing gas fired boiler is designed with a circular arc-shaped door, and uses a large furnace full-mixed combustion and threaded smoke the tube transfers heat. This series of boilers are low-nitrogen coupling, with four-stage low-nitrogen combustion technology in the furnace, which effectively reduces NOx generation; equipped with Swiss ABB frequency converter, Italian CAVALLO Kavanaugh frequency conversion split low-nitrogen burner, 7-inch LCD touch screen and high-performance PLC Program the controller to achieve low nitrogen emissions of less than 30mg.

The gas-fired hot water boiler adopts a large-volume full-corrugated furnace liner, a wet-back racetrack-type back-combustion chamber, and the full-threaded smoke pipes are symmetrically and evenly arranged on both sides of the furnace liner. The gas fired hot water boiler uses a variable-frequency split low-nitrogen burner to provide fuel combustion, and the sprayed flame burns turbulently in the furnace. The high-temperature flue gas produced by this type of boiler is turned back through the back-combustion chamber and enters the threaded flue pipe. After heat exchange, it enters the air preheater from the front flue box. Energy-saving and condensing integrated machine, the flue gas flows countercurrently through the staggered silicon-magnesium-aluminum alloy finned tubes to expand the heating surface, recovers the latent heat and sensible heat of the flue gas, preheats the boiler feed water temperature, and the flue gas after the heat is fully recovered is discharged into the atmosphere through the chimney.

This series of hot water boilers uses an energy-saving condensing integrated machine to fully recover the sensible heat in the flue gas and the latent heat of vaporization after condensation of water vapor. Increase the feed water temperature, reduce the exhaust gas temperature, save gas costs, and effectively improve the thermal efficiency of the boiler. The condensing gas fired boiler adopts ND steel + silicon-magnesium-aluminum alloy wound composite finned tube, which has high heat transfer performance and strong corrosion resistance. Equipped with an air preheater, it can be started quickly under low temperature conditions, and the air can be heated quickly. High heat transfer strength and strong corrosion resistance. The two-way pure countercurrent heat exchange mode increases the air temperature and accelerates the combustion.

The condensing hot water boiler adopts a large corrugated furnace design, and the boiler water is heated evenly and stably. Increase the combustion space, reduce the flame temperature, and achieve low nitrogen emissions. The smoke outlet of WNS series boiler products can be equipped with a condensing heat exchanger to reduce the exhaust gas temperature and absorb the sensible heat and latent heat in the flue gas, and improve the thermal efficiency of the boiler (up to 95%). Adopt advanced controller, with timing control, automatic work record, leak detection alarm, pressure protection, temperature control, water shortage protection and other functions.

The heating surface layout of the condensing gas fired boiler is reasonable, the technical parameters are selected appropriately, and the heat transfer area is sufficient. By using advanced condensing technology to reabsorb the flue gas waste heat, make full use of the sensible heat and latent heat in the flue gas. The heat is put into the boiler again, further improving the efficiency of the boiler. The front smoke box of this series of hot water boilers is connected by a hinge, which can be opened easily. The double doors are insulated and moisturized, which effectively reduces the temperature of the front panel, reduces heat loss, and improves thermal efficiency.