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.
Advantages and Disadvantages of Water Tube Boilers 2015-11-04 08:57:36. There are two main boiler types that people can choose from for their specific application: water tube boilers and fire tube boilers.Of the two, water tube boilers contain wider range than fire tube boilers and they are …
Jun 23, 2015· 2) Fluctuation of steam demand can be met easily. 3) Cheaper than water tube boiler. Disadvantages of Fire Tube Boiler 1) Due to large water the required steam pressure rising time quite high. 2) Output steam pressure cannot be very high since the water and steam are kept in same vessel. 3) The steam received from fire tube boiler is not very dry.
The boiler in which the water is present inside the tubes and fire or hot gases surrounds these fire tubes. The examples of water tube boilers are a La-Mont boiler, Benson boiler, Stirling boiler, Babcock and Wilcox boiler, Yarrow boiler and Loeffler boiler.
Mar 19, 2016· The main difference between fire tube and water tube is that in fire tube boiler the flue gases flow in the tubes and water flows from the shell and in water tube boiler, water flows from the tubes and the flue gases from the shell or passes over the tubes. …
Apr 23, 2018· The water-tube boiler has some special advantage that the fire tube boiler doesn’t have. Before we start let’s know about the working principle of a water tube boiler and it will help you to understand its advantage and disadvantages clearly.
Advantages and Disadvantages of Water Tube Boilers over Fire Tube Boilers: Advantages: 1. Steam can be raised more quickly: In water tube boilers, the ratio of water content to the steam capacity is comparatively less than the fire tube boiler. Hence water tube boilers can quickly generate steam at the required pressure than the fire tube boiler. 2. Steam at higher pressures can be produced
2. Fire tube boiler is so easy to use, operate, clean and maintain 3. Fire tube boiler can be used in small scale industries. 4. Fire tube boiler is relatively cheaper than water tube boiler. Disadvantages of fire tube boiler: 1. From the furnace combustion side, required time to fill water is longer than to increase temperature and pressure. 2
Apr 20, 2012· Advantages Following are the major advantages offered by fire tube boiler plants: The entire plant may be purchased as a complete package, only needing securing to basic foundations, and connecting to water, electricity, fuel and steam systems before commissioning. In this way, the installation cost of fire tube boiler systems gets reduced.
Feb 22, 2018· The water tube boiler’s furnace area can be easily altered to meet the fuel requirements. Demerits of Water Tube Boiler over Fire Tube Boiler: It is less suitable for impure and sedimentary water, as a small deposit of scale may cause the overheating and bursting of the tube.
Mar 26, 2016· From the perspective of heat transfer: A boiler nothing but a heat exchanger wherein a hot fluid (flue gas) supplies heat to the cold fluid (water) such that it evaporates. The major factor that determines the heat transferred is the heat transfe
Fire-tube boiler: This is a boiler in which the fire or hot gas is present inside the tubes and water surrounds these fire tubes.; Since fire is inside the tubes and hence it is named as fire tube boiler.The heat from the hot gases is conducted through the walls of the tube to the water.
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.