SZS oil and gas furnace double-drum vertical-mounted "D" type layout quick-assembled water-tube boiler is composed of upper and lower drums, membrane water-cooled walls, convection tube bundles, economizers, and condensers. The burner is arranged on the front wall, and the fuel is in the furnace. After combustion, the flue gas is discharged into the chimney after passing through the convection tube bundle, economizer and condenser.

SZS type oil and gas furnace adopts two cutting-edge technologies in the field of low-nitrogen combustion in the world  , staged combustion and FGR flue gas recirculation . It fully meets the requirements of the most stringent low-nitrogen emission standards (30 mg/m3) in Beijing and other places in China, and has reached the advanced level of low-nitrogen emission combustion technology. Coupled with the high safety of the SZS boiler, the thermal efficiency of up to 98%, and the equipped intelligent boiler IoT system, it not only achieves ultra-low nitrogen emissions, but also greatly saves energy, becoming the preferred choice for customers in various provinces and cities.


Features


1. Advanced environmental protection "D" type layout:
Compact structure, small footprint, and good flame filling. The internationally popular D-type layout, full wet back structure, and large-volume combustion chamber design make the combustion more sufficient and can effectively achieve the emission standard below 30mg.


2. Modular design:
The boiler as a whole is divided into a body, an economizer and other accessories . The body consists of a furnace and a single-circuit convection heating surface. The economizer is transported in a package to achieve the overall delivery and ensure the quality of the boiler. Slight positive pressure combustion, small smoke and wind resistance. The boiler smoke and air system is only equipped with a blower, and the furnace is in a slightly positive pressure, which reduces the air leakage of the boiler and improves the efficiency of the boiler.     


3. Membrane water wall sealing structure :
The boiler body and the furnace are surrounded by membrane water-cooled walls, so that the furnace wall can be reliably sealed to prevent flue gas leakage. At the same time, the light furnace wall is adopted, which is reliable in operation, small in heat dissipation loss, small in thermal inertia, and easy to start and stop quickly.     


4. Large heating surface and good thermal insulation effect:
The furnace volume is large, the radiant heating surface is sufficient, the fuel combustion is completely sufficient, and the environmental protection performance is good; the boiler output is sufficient and has overload capacity; the high thermal resistance material is used as the thermal insulation layer, and the thermal insulation performance is good.


5. Safe water cycle design:  
The water circulation of the steam boiler adopts a natural circulation loop, the water circulation flow resistance is small, and there will be no deterioration of the water circulation conditions such as stagnation, reverse flow, free liquid surface, etc., effectively preventing the occurrence of pipe burst accidents. The water circulation of the hot water boiler adopts a forced circulation loop to ensure the safety of the water circulation.      
6. There are inspection holes and explosion-proof doors:
In order to ensure the ignition safety of the boiler, an explosion-proof door is designed on the top of the boiler. The furnace is equipped with manholes, which makes the boiler safe, reliable in operation , and convenient for maintenance.


7. Good configuration of combustion system:    
Imported low-nitrogen burners with superior performance are selected for high-efficiency combustion, reducing mechanical incomplete combustion loss and chemical incomplete combustion loss, realizing low-oxygen combustion, reducing excess air, reducing exhaust temperature as much as possible, reducing exhaust heat loss, and improving Boiler thermal efficiency, maximizing savings in operating costs.


8. Powerful automatic control system:  
The company has the ability of automatic control technology in the boiler industry, adopts advanced technologies such as automatic combustion proportional adjustment, three-impulse water supply automatic adjustment system, program start and stop, automatic operation, etc. Automatic protection functions such as flameout and gas leakage ensure the safe and stable operation .