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explain waste heat boiler

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.

Waste Heat Recovery - Energy.g

RD&D to advance waste heat recovery technologies. Technology needs are identified in two broad areas: 1) extending the range of existing technologies to enhance their economic feasibility and recovery efficiency, and 2) exploring new methods for waste heat recovery, especially for unconventional waste heat sources. Acknowledgement

Solved: A Fuel Gas Containing 95 Mole% Methane And - Che

a fuel gas containing 95 mole% methane and the balance ethane is burned completely with 25% excess air. the stack gas leaves the furnace at 900 degrees Celsius and is cooled to 450 degrees Celsius in a waste heat boiler, a heat exchanger in which heat lost by cooling gases is used to producde steam from liquid water for heating, power generation, or process applications.

Boiler Economiser : Definition, Function & Types

What is combustion efficiency in steam boiler?Managing your boiler with the best amount of excess air will reduce heat loss up to the mass and enhance combustion efficiency. Combustion efficienWhat are the factors of combustion efficiency?The thermal efficiency and combustion efficiency of a condensing device will be different. The only way to determine the exact thermal efficiencyWhat are direct and indirect efficiencies in boiler?The overall boiler efficiency relies on many parameters apart from combustion and thermal conductivity. These other parameters include ON-OFF damag Boiler Economiser: Boiler Economiser ( Sometimes Called Economizer ) is the Energy improving device that helps to reduce the cost of operation by saving the fuel.. The economizer in Boiler tends to make the system more energy efficient.. In boilers, economizers are generally Heat Exchangers which are designed to exchange heat with the fluid, generally water.

Boiler Efficiency - an overview | ScienceDirect Topi

Boiler efficiency is a measure of how effectively chemical energy in fuel is converted into heat energy in steam going to the turbines. The largest boiler efficiency loss is sensible heat lost as hot flue gases (and ash) exit the boiler. Unburned carbon losses equate to the fraction of …

(PDF) Design of SRU Thermal Reactor and Waste Heat Boil

The first section of sulphur recovery units (SRU) based on Claus process is constituted of a burner, a thermal reactor and a waste heat boiler and it is designed to oxidize acid gases by air.

WASTE HEAT RECOVE

The recuperator is a waste heat recovery device or a heat exchanger between waste gases and the air to be pre-heated. Heat exchange takes place between the flue gases and the air through metallic or ceramic walls. 2.8 Waste Heat - revised (table format) 60

WASTE HEAT TO POWER SYSTEMS - US E

Author: ChemicalEngineering The efficiency of generating power from waste heat recovery is heavily dependent on the temperature of the waste heat source. In general, economically feasible power generation from waste heat has been limited primarily to medium- to high-temperature waste heat sources (i.e., > 500 oF). Emerging technologies, such as organic

Chapter 14 Boilers - Pearson Educati

Waste heat boiler—a device that uses waste heat from a process to produce steam, p. 297. Water tube boiler—a type of boiler that contains water-filled tubes that allow water to circulate through a heated firebox, p. 296. 14.1 Introduction Steam has many applications and a long history in the process industries. Steam provides

Boiler Working Animation Steam Boilers, Waste Heat Boilers

Click to v

Click to view4:58Feb 24, 2013· Explains with working animations steam boilers, waste heat boilers and thermal liquid heaters. Learn about boiler designs, advantages and disadvantages etc. These boilers are mainly used in

RFT Inspection of Waste Heat Boiler Tub

Mar 02, 2017· RFT Inspection of Waste Heat Boiler Tubes. We have waste heat boilers with 6m long horizontal tubes 38.5mm dia x 5.1mm wt expanded and seal welded between tube sheets - hot side / cold side. The hot side tube sheet is refractory clad with a ceramic insert in the tubes.

Condensing boiler - Wikiped

A condensing boiler extracts additional heat from the waste gases by condensing this water vapour to liquid water, thus recovering its latent heat of vaporization. A typical increase of …

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