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shell boiler design

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.

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Introduction of WNS gas / oil fired steam boiler:

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.

Technical advantages:

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.

Design Procedure of Shell and Tube Heat Exchang

The design of shell and tube heat exchanger using Kern method for water and steam combination is validated by well-known Dittus-Boelter equation of turbulent flow inside tube. The analysis is extended using the above Kern method with different fluid combinations such as …

Fire-tube boiler - Wikiped

A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or (many) more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam.. The fire-tube boiler developed as the third of the four major historical types of boilers: low

What material is used to make a boiler shell? - Quo

Sep 29, 2015· Industrial boilers provide steam for processing and heating in a wide range of facilities, from hospitals to food manufacturing to chemical plants. Fire tube-design boiler systems are very typical for this service, where the heat from the fuel pas

Comparison of Coil Type and Shell Type Boile

A coil type boiler is water tube design, the water travels through the coil and is surrounded with flue gases. The steam generated is directly fed to the process. There is no scope for steam storage as these are once through type boiler. Shell and tube type boilers have adequate steam space above the normal water level of the shell.

Stress in Steam Boiler Shells from Boiler Pressu

The stress in a steam boiler shell can be calculated as. σ = P D / 2 t (1) where . σ = hoop stress (Pa, N/m 2) P = boiler pressure (Pa, N/m 2) D = diameter of boiler shell (m) t = thickness of boiler shell (m)

IOP Conference Series: Materials Science and Engineeri

Why is the Cochran boiler shell made with a sphericalSep 30, 2018What material is used for covering the surface of a boilerMay 14, 2018Which material is used for a superheater in a boiler?Mar 03, 2018Which material is used to make an industrial boiler? See more results Design and Analysis of Boiler Pressure Vessels based on IBR codes a Balakrishnan B , bKanimozhi .B aResearch Scholar,Department Mechanical Engineering, Sathyabama University,Chennai bFaculty of Mechanical Engineering, Sathyabama University, Chennai Email: kanihwre@gmail.com . Abstract Pressure vessels components are widely used in the thermal and nuclear power plants for

Steam For Power and Process - Babcock & Wilc

B&W's radiant boiler designs accommodate pulverized coal, including difficult-to-burn coals, natural gas and/or oil and combustible byproduct gases. Subcritical pressures range usually 1800 to 2600 psi (12.4 to 17.9 MPa) and superheater and reheater outlet temperatures as required, usually in the range of 1000 to 1050 F (538 to 566C).

4 Different Designs of the Fire Tube Boiler: Which Is Best

Horizontal Return Tubular Fire Tube Boiler. As one of the oldest and most simple designs for …

Boiler Design: Composition, Benefits, & How to Sta

Horizontal Return Tubular Fire Tube Boiler. As one of the oldest and most simple designs for … Regular Boiler Configurations. There are two common types of boilers: Fire-tube Boilers; Water-tube Boilers; Fire-Tube Boilers. A fire-tube boiler’s principal elements include a cylindrical shell, a set of tubes, a feedwater channel line, and a combustion gas vent stack.

Industrial boiler technology for beginne

Design of an industrial boiler At full capacity a boiler of this size converts 3 000 litres of fuel oil or a the flue gases, these boilers are also called three-pass shell boilers. Industrial boiler systems can cope with much higher pressures than pressure cookers. These

Boiler Tubes Thickness Pressure Equation and Calculat

Author: B Balakrishnan, B Kanimozhi Boiler Tubes Thickness Pressure Equation and Calculator. ASME Pressure Vessel Design and Engineering. ASME SECTION I – Boiler Tubes up to and including 5 inches O.D. (125 mm): The minimum required thickness, according to ASME paragraph PG-27.2.1, use equation below: To calculate the Maximum Allowable Working Pressure (MAWP):

Boiler Design Basic Steps - Boiler and Mechanical Pow

Boiler design is the process of designing boilers used for various purposes. The main function of a boiler is to heat water for steam generation. Steam produced can be used for a variety of purposes including space heating , sterilization, drying, humidification and power generation. The temperature or condition of steam required for these applications is different, so how to design a boiler …

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