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.
“ (FBC) Fluidized bed combustion is a combustion technology used to burn solid fuels in steam boilers.”. In Fluidized Bed Combustion Boiler technology When air or gas is passed through an inert bed of solid particles such as sand supported on a fine mesh or grid, the air initially will seek a path of least resistance and pass upward through the sand.
Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels.. In its most basic form, fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials (sand, limestone etc.) through which jets of air are blown …
J.R. Grace, C.J. Lim, in Fluidized Bed Technologies for Near-Zero Emission Combustion and Gasification, 2013. Abstract: Circulating fluidized beds are popular for large-scale combustion operations, and they are also gaining attention for gasification of carbonaceous feedstocks. Circulating fluidized beds utilize the entire height of tall vessels for gas–solids contacting, with no distinct
(c) Fast Fluidized Bed (Circulating Fluidized Bed): The air velocity in circulating bed combustion is between 4 — 10 m/s. In circulating bed the solid particles elutriated with are return back to the bed at sufficiently high rate. The bed column is divided into two regions.
Circulating (fast )fluidized bed combustion system are designed to overcome drawbacks associated with AFBC boiler. Fluidizing velocity in this type of boiler is relatively very high 3.7-9m/sec, The combustion takes place at 840-900 °C, and the fine particles (<450 microns) are elutriated out of the furnace with flue gas velocity of 4–6 m/s.
Circulating fluidized bed boiler is consisting of combustion chamber, separator, fly ash circulating system, superheater, convection bank, economizer, and air preheater. Application Zhongding low pressure circulating fluidized bed boiler is a high efficiency, energy saving and environmental protect equipment.
Circulating fluidized bed boiler is consisting of combustion chamber, separator, fly ash circulating system, superheater, convection bank, economizer, and air preheater. Application Zhongding low pressure cyclone circulating fluidized bed boiler is a high efficiency, energy …
Those circulating fluidized-bed combustion systems sold by Pyropower Corp. and operated thus far have demonstrated the following characteristics: » multifuel capability • good boiler efficiency • good load-following capability • high availability • ease of operation • economical installation to replace oil firing Pyropower Corp. is
23-06-2015. Fluidized-bed combustion : Fluidized-bed combustion Circulating Fluidized Bed Boiler In a CFB boiler furnace the gas velocity is sufficiently high to blow all the solids out of the furnace. The majority of the solids leaving the furnace is captured by a gas–solid separator, and is re-circulated back to the base of the furnace.
Jan 15, 2019· There are three types of fluidized bed combustion boilers: 1. Atmospheric fluidized bed combustion system (AFBC) or Bubbling fluidized bed combustion (BFBC) AFBC is atmospheric fluidized bed combustion, where the furnace pressure is atmospheric pressure and velocity of fluidized air is in the range of 1.2 to 3.7 m/sec.
No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China
0086-510-68530066, +86-13506151292Get Latest Price
Copyright © 2020.Zhongzheng Boiler Co., ltd. All rights reserved.