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.
Related Topics . Steam Thermodynamics - Thermodynamics of steam and condensate applications; Related Documents . Air Solubility in Water - Amount of air that can be dissolved in water - decreases with temperature and increases with pressure; Boiler Blowdown - Suspended solids in the feed water will remain in the boiler when steam is generated; Boiler Blowdown Rate - Calculating boiler blowdown
May 04, 2016· A boiler that makes up 4000 gal/day of water having 100 ppm of hardness, has a potential of accumulating over 1000 pounds of scale per year. Alkalinity Test In natural waters, alkalinity is most commonly the result of bicarbonate and carbonate ions; in treated waters, alkalinity may also be contributed by hydroxide, phosphate, silicate, and
L ow sulfite residual in a boiler can have many causes. Each boiler system is unique. You should gain an understanding of how your system relates to the possible causes outlined in this article. Possible Causes x Undercycled boilers x Low deaerator (DA) temperature and pressure x Improper DA venting x Changing steam loads x Malfunctioning DA
As with boiler water TDS measurement, conductivity (μS/cm) x 0.7 = TDS in parts per million (at 25°C). Note: the sample of feedwater that is required is from the boiler feedline or from the feedtank and is not a sample of the make-up water supplying the feedtank. The quantity of steam which the boiler generates, usually measured in kg/h.
File Size: 1MB Mar 07, 2017· Here is a challenge question I would like to leave you with: There is a 1200 psig boiler on congruent phosphate with a feedwater silica level of 0.020 ppm. The boiler water silica is 0.080 ppm.
May 08, 2018· So the water coming in to the boiler feed is already alkaline…. When the water enters the boiler and boils, steam is released removing some water as vapor…. What doesn’t leave as vapor, however, are the dissolved minerals, which stay in the boiler
Before perform boiling out in steam boiler, drain, etc. must be run while in normal start-up. Fire the boiler to take the pressure approximately 10 kg/cm²G in about 8 hours. Maintain this pressure for 4 hours to make sure circulation. Close up the drum vents while the drum pressure gets to 2 kg/cm²G. (and below 5 ppm) or siliceous
File Size: 58KB If a shutdown occurs during normal firing of a boiler and the steam pressure is below the normal cut off value, the problem could be: a. an interlock such as the combustion air proving switch has failed b. main flame trial failure c. pilot flame trial failure d. igniter transformer failure
In a steam boiler system, there are three potentially destructive elements: oxygen, carbon dioxide, and solids. 2.2.2 As the boiler water is heated and changes to steam, free oxygen is released, carbon dioxide is released from the solids, and the solids drop out (precipitate). 2.2.3 As the steam is used in the end process, it cools and condenses
File Size: 176KB Testing of boiler water for large steam boilers needs to become a routine to MAINTAIN chloride levels below 100ppm. Bottom blowdowns are a necessary evil where boiler water treatment is concerned. Welding is a costly alternative.
The first reaction proceeds to completion while the second is only (approximately) 80% completed. The net results are release of 0.79 ppm of carbon dioxide for each part per million of sodium bicarbonate as CaCO 3 and 0.35 ppm of carbon dioxide for each part per million of sodium carbonate as CaCO 3.. As the steam is condensed, carbon dioxide dis-solves in water and depresses the pH by
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