Understanding Nitrogen Oxides (NOx) Formation:
Nitrogen oxides, commonly referred to as NOx, are harmful pollutants formed during the combustion process in gas boilers. Their generation is primarily linked to the combustion temperature and the presence of nitrogen:
Thermal NOx: Formed at high temperatures, typically above 1,300°C (2,372°F). At these temperatures, oxygen molecules (O2) in the air dissociate into individual oxygen atoms, which then react with nitrogen (N2) present in the...
WNS series oil/ gas fired boilers' main features are as below:
1. Combustion chamber adopts corrugated furnace to reduce the thermal stress and improve the safety of boiler;
2. Boiler body adopts wet back structure which is safe and reliable;
3. Threaded smoke tube enhances the heat transfer and reduces the steel consumption of boiler body;
4. Boiler is fully automatic controlled with automatic running and interlock protection function and the operation is simple.
5. Spiral finned tubes eco...
With the vigorous promotion of the "coal to gas" policy, gas-fired boilers are widely favored by the market. Users are often stumped when faced with the type of gas-fired boiler. In this page, ZOZEN Boiler lists the common gas-fired boiler models and structural features, hoping to be helpful in the selection of gas boiler models.
WNS series gas-fired boiler
Capacity: 1-20t/h
Pressure: 0.7-2MPa
ZOZEN WNS series gas-fired boiler adopts large-diameter corrugated furnace structure, which...
Evaporation phase occurs in water wall tubes. Evaporation is the process to convert water into steam. Therefore water wall tubes should be designed and constructed to provide high heat absorption, minimum excess air level and highest boiler efficiency. Construction of water wall tubes should be also constructed to prevent air leakage into steam boiler, eliminate amount of heat losses and permit high heat release and combustion rate in the furnace.
Construction of water wall tubes must provide high quality of the supporting component such as tubes, casing, refractory, lagging, tile, fin, and so on. Best construction will reduce heat loss and maintenance. Construction of water wall tubes can be classified into four types such as:
