Product Thermal Capacity: 1 - 20 t/h
Working Pressure: 0.7 - 2 Mpa
Available Fuel: Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc.
Available Industries: Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.
WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.
1. Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.
2.Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.
3. Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.
4. Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.
Selective Non-Catalytic Reduction (SNCR) EES supplies Selective Non-Catalytic Reduction (SNCR) systems that reduce NOx by up to 40% on conventional boilers and up to 80% or more on fluidized bed boilers (C/BFB). STEP’s propriety high efficiency SNCR system utilizes urea or ammonia reagent
Chapter 1 – Selective Noncatalytic Reduction 1-3 Figure 1.1a: SNCR NO x Reduction Efficiency for Various Utility Boiler Sizes [2] Figure 1.1b: SNCR NO x Reduction Efficiency for Boilers in Various Industry Sectors [2] 0 10 20 30 40 50 60 70 0 100 200 300 400 500 600 700 800) Boiler size (MW) SNCR Reductions for Utility Boilers Coal-fired
NOx Control (SNCR) Selective Non-Catalytic Reduction is a post-combustion technology that is designed to control nitrogen oxides (NOx) emissions from boilers by the injection of ammonia or urea reagents into the flue gas. Hamon Research-Cottrell is licensed by Exxon Mobil for the application of ammonia based Thermal DeNox™ (TDN). .
Air Pollution Control Technology Fact Sheet EPA-CICA Fact Sheet 1 SNCR There are hundreds of commercially installed SNCR systems on a wide range of boiler configurations including: dry bottom wall fired and tangentially fired units, wet bottom units, stokers, and fluidized bed system after start up can reduce reagent usage and
File Size: 23KB Reagent injection system; Boiler control interface and tuning SNCR Selective Non-Catalytic Reduction from CCA. Since 1980, CCA has led the international market in SNCR systems. At all stages of the manufacturing process, CCA maintains the highest standards.
performance parameters, and system components of SNCR and SCR. In addition, impacts to the boiler performance and facility operations resulting from the installation of SNCR and SCR are presented. The section also estimates important underlying design parameters including the normalized stoichiometric ratio, catalyst volume, and reagent
CFD modeling used to optimize every system; Works with Firetube, IWT, HRSG, and retrofit boilers; Selective Catalytic Reduction (SCR) is a post-flue gas treatment that is capable of reducing NOx emissions from a wide variety of boiler systems. SCR is one of the most effective ways of reducing NOx in a flue gas stream, with reductions up to 95%.
Wellons utilizes a urea-based selective non-catalytic reduction (SNCR) system to lower the NOx emissions in the flue gas from the boiler system. The SNCR system is designed to lower the uncontrolled NOx emissions in the stack flue gas by approximately 50%.
The GE Umbrella-SNCR (U-SNCR) is unique because the urea is sprayed within the furnace with a nozzle that is adjustable in height. The process uses cooled lances which carry flexible hoses arranged in the furnace. There are no boiler size constraints, and the technology is easy to control.
The SNCR method is an ammonia or urea injection system that reduces NOx emissions. NOx reduction achieved with this method depends on the boiler design and load. Typical reduction varies from 20% to 70%. In SNCR, ammonia or urea is injected straight into the furnace or cyclone inlet and mixed with the hot flue gas. Ammonia reacts with nitrogen
During the ozone season, over fire air (OFA) and an SCR system is used on the cyclone unit and low NO X burners with separated over fire air (SOFA) and an SNCR system is utilized on the t-fired
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