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.
Two types of gas burner are in use ‘Low pressure’ and ‘High pressure’. Low pressure burner. These operate at low pressure, usually between 2.5 and 10 mbar. The burner is a simple venturi device with gas introduced in the throat area, and combustion air being drawn in from around the outside. Output is limited to approximately 1 MW.
Likewise, it can be fired with multiple fuels including natural gas, propane or #2 fuel oil (as backup), offering dual fuel flexibility. Moreover, the MFC series features dual return connections standard for optimal application flexibility and seasonal efficiency gains of up to 10%.
Fuel Oil/Gas Thermal Hot Oil Heaters boiler takes thermal oil as medium and uses the hot oil circulating pump force the medium to make circulation; then the thermal energy will be transmitted to the heat using devices and return to the furnace to be reheated.
Nov 11, 2016· KompareIt says that steam boilers running on oil have a minimum AFUE of 82%. A steam boiler running on gas, meanwhile, would have a minimum of 80%. Hot water boilers have a minimum of 82% for gas models and 84% for models that run on oil. Energy.gov says boiler vs. furnace energy efficiency can also be compared by noting certain equipment features.
The steam piping is directed through the flue gas path in the boiler furnace, an area in which the temperature is typically between 1,300 and 1,600 degrees Celsius (2,372 and 2,912 degrees Fahrenheit). Some superheaters are radiant type, which as the name suggests, they absorb heat by radiation.
2015-8-31 · high-pressure boiler or a medium-pressure boiler in the fuel system to partially replace fuel oil (FO) and/or natural gas (NG) in a full-scale petrochemistry plant. Two sets of inlet fuel ﬂow rate ratios were examined to evaluate the reductions of boiler energy consumption and CO 2 emission.
File Size: 296KB The UFT is HTP’s medium mass high efficiency boiler. This advanced modulating gas condensing boiler has a 316L stainless steel fire tube heat exchanger with up to a 96% AFUE rating. It has a 10 to 1 turndown ratio and has ultra-low NOx emissions, making the UFT eco-friendly!
The optimum efficiency was 84.3% recorded at medium fire and 30.6% excess air. For MFO, the combustion efficiency decreases from low to high fire, with slight increases as the mode shifts from
For a steam heating boiler, the safety valve shall be such that, with the fuel burning equipment installed and operated at maximum capacity, the pressure cannot rise more than blank above the maximum allowable working pressure when all steam outlets are closed
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