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.
the furnace wall. The waterwall boiler design allows much lighter, less expensive walls by having the waterwalls form an integral part of the boiler wall so that the wall is water cooled. If so equipped, the superheater and reheater are separate sections hanging above the main furnace volume.
Mar 12, 2013· In water wall tubes, water flows and takes away the heat surrounding it. Thus the heat inside the boiler does not get transmitted to the outside of the boiler. These are of three designs namely: water cooled with refractory covered studded tubes; Close pitched exposed tubes and membrane Wall.
Membrane Boiler - Membrane Type Boiler Latest Price . This is a unique design membrane water wall type boiler combining the advantages of water tube & smoke tube designs. The radiation zone of the furnace is covered on three sides by water tubes forming the first pass and the conventional smoke tube shell has tubes lined up … Online Chat Email
Corrosion Resistant Steel Boiler Membrane Water Wall Panels For Thermal Power (1) Ensure the sealing of furnace wall and reduce air leakage in combustion chamber. (2)The realization of full water cooling in combustion chamber is beneficial to prevent coking under the condition of (3)The cooling
The boiler chamber was assembled with four membrane walls made of 8 steel plates (thickness, 2 mm) and 7 steel tubes (φ 12 × 2 mm) by pin connection. Cooling water was pumped into the membranes from the bottom, and flowing upward to the top, then returning to the cooling tank. Natural gas was used as …
Customized Boiler Membrane Manhole Inspection Door Startup Burner Opening Lifting Lugs. Manually Bending Boiler Water Wall Tubes , Water Wall Boiler 100% RT NDT Test With Anchors. Furnace Tube In Biomass Membrane Water Wall Boiler ASME Or ISO 3834 EN Standard. Water Wall Panel Boiler. CFB Boiler Membrane Water Wall Panel Boiler High Thermal
The water wall is the main radiation heat surface, arranged inside the boiler chamber and proceeds the heat exchange directly with the high temperature flame. The convection tubes are the convection heat surface of the boiler, arranged between the boiler chamber outlet and the end heat surface and proceed the heat exchange directly with the high temperature fume.
Monowall or membrane wall; Tangent Tube. In tangent tube arrangements, small diameter tubes are closely pitched together to form an arrangement backed by three layers, namely - refractory, insulation and boiler casing. The problem with this arrangement is that, in case of tube failure the welded repairs become a bit difficult to carry out.
Membrane or fin tube water wall is now best design and construction because this type can give more protection in the insulation and give highest efficiency and heat transfer surface (see figure 4). Reference: Book – Central Boiler Plants – Department of The Army
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