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.
Water Tube Boiler Start Up Procedure. Jul 16, 2008· I'm prepearing for the Los Angeles City Steam Engineers License exam and am putting together a start up procedure for Water Tube Boilers. We use Fire Tube Boilers at my plant. Please forward you start up procedures. Get a Quote
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Boiler is a two drum, bent-tube, "D" type Boiler. The line consists of three Models; "D", "DL" and "DLD" which vary only in size, dimensions, and capacity. All models are covered by this manual. The Boiler has a six-wall water cooled furnace. The inside and outside furnace walls, as well as the floor and roof, are constructed of tangent tubes.
Boiler expanders are designed with rolls sufficiently long to roll 1/4″ to 3/8″ beyond the sheet thickness. Boiler inspectors insist that tubes be rolled the full thickness plus a minimum of 3/16″ beyond the sheet or drum thickness to a maximum 1/2″. It’s very common to use four or five different tools when repair water-tube boilers.
Starting Boiler and Pressure Rise. The following work procedures must be followed during start-up of the boiler. Check that the gauge board valve and pressure gauge valves are opened. Check that the air valve is open if the boiler pressure is below 1.0 bar. Start the burner on manual control and on low load.
Mar 04, 2020· A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them. This is the basic definition of water tube boiler. Actually this boiler is just opposite of fire tube boiler where hot gasses are passed through tubes which are surrounded by water.. Advantages of Water Tube Boiler. There are many advantages of water tube boiler due to which
User rating: 60/100 There are three major areas of attention when starting up a boiler: obtaining stable ignition, bringing the boiler up to normal operating conditions, and preparing and pressurizing the steam headers. Ignition Although boilers have many different specific ignition systems, they all follow the same basic sequence of steps: 1. Pre-purge of the furnace.
boiler serves as a low water cut-off (see above) and also causes make-up water to be added to the boiler should the water level drop below its control point. This type of control must be operationally tested as for low water cut-offs and also to assure that the make-up water is introduced as needed. Carefully read the enclosed literature on the Low
Advantages of Water Tube Boiler1. Larger heating surface can be achieved by using more numbers of water tubes. 2. Due to convectional flow, movement of water is much faster thanWorking Principle of Water Tube BoilerMore and more steam is produced the pressure of the closed system increases which obstructs this convectional flow of water and hence rate productiTypes of Water Tube Boiler1. Horizontal Straight Tube Boiler. 2. Bent Tube Boiler. 3. Cyclone Fired Boiler. 1. Longitudinal Drum Boiler 2. Cross Drum Boiler. 1. Two Drum BenCross Drum Water Tube Boiler1. The feed water is fed to the cross drum through feed water inlet. 2. Then this water comes down through the down-comer pipe and enters into incl BOILER COLD STARTUP PROCEDURE 1. 2. 3. After starting the coal feeder the coal will take one or two minutes to enter Boiler Fundamental & Water Circulation. Institute a suitable boiler water treatment program to reduce scale a typical starting Board of Boiler and Pressure Vessel Inspectors.
Open the main steam-stop valve(s). When the pressure reaches 10 to 15 psig, close the boiler vent. Test the low-water cutoff by securing the boiler feed and let the boiler steam off naturally to see if the switch cuts power to the burner at the proper low level. If it does not, break power to the burner immediately and take corrective action.
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