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.
NETL estimates that for a pulverized subcritical coal plant, the equipment to control NO x, SO 2, and PM comprises $324/kW of the $1,549/kW plant cost (21 percent). At the request of IER, NETL estimated the cost of a subcritical pulverized coal plant without controls for criteria pollutants.
Coal-Fired Generation | ScienceDirectDecarbonizing existing coal-fired power stationsThe prospects for coal-fired power plants with carbonCoal-Fired Electricity and Emissions Control | ScienceDirectSee more results Apr 12, 2011· To study the operation characteristics of the oxy-combustion process, an 800 MW e oxy-combustion pulverized-coal-fired power plant was simulated and analyzed using the commercial flowsheet software Aspen Plus. The base simulation result indicates that Aspen Plus is a proper tool to research the oxy-combustion system.
Cited by: 55 Apr 09, 2018· Advantages of a coal-fired power plant: It’s known that coal is the most widely used fuels for generating power and electricity around the world which means that the coal_fired power plant has many advantages as: It’s abundant and easy to burn. It doesn’t depend on the weather or existing climatic conditions for mining coal.
"Projected capital costs of a typical pulverized coal-fired power plant from in the U.S. 2008 to 2050 (in U.S. dollars per kilowatt hour)." Chart. February 1, 2012.
Y. Yan, in Advanced Power Plant Materials, Design and Technology, 2010. 10.1 Introduction. Coal-fired power stations are burning an increasingly varied range of fuels and fuel blends, including sub-bituminous and lower volatile coals and biomass of varying composition and combustion properties, under tight economic and environmental constraints. Since existing coal-fired plants are not
Most of the coal fired power plants use the Pulverized Coal (PC) firing technology. The technology is proven and is in use for nearly a century. Advances over the years have improved the efficiency of combustion, reliability and reduced emissions.
A coal-fired thermal power station is a power plant in which the prime mover is steam driven. Water is heated, turns into steam, and spins a steam turbine, which drives an electrical generator, as schematically shown in Fig. 1.9.After it passes through the turbine (one to three stage), the steam is condensed in a condenser and recycled to where it was heated; this is known as a Rankine cycle.
A new, technologically advanced 695 MW(net) supercritical pulverized coal-fired power plant nearing completion in Maidsville, W. Va., is receiving attention for its design efficiency and
Jan 20, 2018· The coal is ground (pulverised) to a fine powder, so that less than 2% is +300 µm and 70-75% is below 75 µm, for a bituminous coal. The pulverised coal is blown with part of the combustion air into the boiler plant through a series of burner nozzles. Secondary and tertiary air may also be added.
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