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. Introduction:
double drums water tube coal fired 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.
Technical advantages 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.
Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.
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.
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.
The structure of SZS gas fired water tube hot water boiler is arranged as double drums and longitudinal type “D” shape, it’s quickly assembled boiler with water tubes, has the characteristics sufficient output, high thermal efficiency, etc.
Development of the three-drum boiler began in the late 19th century, with the demand from naval ships that required high power and a compact boiler. The move to water-tube boilers had already begun, with designs such as the Babcock & Wilcox or the Belleville. The three-drum arrangement was lighter and more compact for the same power.
Coal Fired Double Drum Steam Boiler – alibaba.com. coal fired double drum … Large Industrial Chain Grate Double Drum Coal Fired Steam Boiler. Features of Biomass Fired Hot Water Boilers: 1). This series boiler belong to double drums water tube boiler, designed for blowdown on surface, and the quality …
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coal fired double drums water tube hot water boiler 2019-04-24 00:28:35 About Us. Zozen Boiler main products include gas&oil boiler, coal-fired boiler, biomass boiler, thermal fluid heater and other series of more than 400 varieties of specifications.
This series boiler is horizontal type water fire tube 3 pass coal fired biomass fired steam boilers. steam capacity is 1-25t/h. Coal Boiler Installation Site The 6 ton capacity coal fired steam boiler use for fabric dyeing and printing plant in Pakistan. thermal efficiency is 85%.
Alibaba.com offers 232 coal fired water tube double drums boiler products. About 65% of these are boilers. A wide variety of coal fired water tube double drums boiler options are available to you, such as industrial, power station.
double drums industry coal steam boiler simply . With more than 30 years of manufacturing boilers, the company has formed more than 400 varieties of gas boilers, biomass boilers, coal-fired boilers, heat-conducting oil boilers, etc.
2019-4-2 · Three-drum boilers are a class of water-tube boiler used to generate steam, typically to power ships.They are compact and of high evaporative power, factors that encourage this use. Other boiler designs may be more efficient, although bulkier, and so the three-drum pattern was rare as a land-based stationary boiler.
It has a low coal leakage because of the small gap. double drums paddy husk fired steam boiler for …long operation life coal fired stoker boiler …long operation life coal fired stoker boiler Quick inquiry: I need the quotation of Electric Boiler steam boiler hot water boiler Hot Air Boiler Thermal oil Boiler , the fuel is , the pressure is ...