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allowable oxygen levels for lpg fired boilers

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.

Natural Gas/Lpg fired boiler 0.1-50t

Boiler: Steam boiler, hot water boiler, thermal oil boiler Capacity: 0.1t/h-50t/h; 100kw-35000kw; 10hp-3000hp Aavailable fuel: Natural gas, lpg, oil, diesel, heavy oil, exhaust gas, dual fuel WNS series Gas-fired (Oil-fired) boilers are horizontal wet back fire-tube boilers with three pass design. It use threaded flue tube for heat transfer and manages to achieve thermal efficiency up to 98%.

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1.4 Natural Gas Combustion - US E

changes in these factors are fairly consistent for all types of natural gas-fired boilers and furnaces. Emission levels vary considerably with the type and size of combustor and with operating conditions (e.g., combustion air temperature, volumetric heat release rate, load, and excess oxygen level).

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1.5 Liquefied Petroleum Gas Combusti

1.5 Liquefied Petroleum Gas Combustion 1.5.1 General1 Liquefied petroleum gas (LPG or LP-gas) consists of propane, propylene, butane, and butylenes; the product used for domestic heating is composed primarily of propane. This gas, obtained mostly from gas wells (but also, to a lesser extent, as a refinery by-product) is stored as a liquid under

Energy Tips – Process Heati

ways to get maximum efficiency out of fuel-fired process heating equipment such as furnaces, ovens, heaters, and boilers. Most high temperature direct-fired furnaces, radiant tubes, and boilers operate with about 10% to 20% excess combustion air at high fire to prevent the formation of dangerous carbon monoxide and soot deposits

Working Principle | Boilers Gui

Both gas and oil fired boilers use controlled combustion of the fuel to heat water. The key boiler components involved in this process are the burner, combustion chamber, heat exchanger, and controls. The burner mixes the fuel and oxygen together and, with the assistance of an ignition device, provides a platform for combustion.

Guide to Low-Emission Boiler and Combustion Equipme

GUIDE TO LOW-EMISSION BOILER AND COMBUSTION EQUIPMENT SELECTION C. B. Oland Date Published: April 2002 Prepared for the U.S. Department of Energy Office of Industrial Technologies Prepared by OAK RIDGE NATIONAL LABORATORY Oak Ridge, Tennessee 37831 managed by UT-BATTELLE, LLC for the U.S. DEPARTMENT OF ENERGY under contract DE-AC05-00OR22725

Oxygen Control For High- and Low-Pressure Boiler Water

oxygen from a boiler water system will depend on the system’s unique specifications. Here’s a look at several of the higher levels of selection considerations one should take into account before moving forward with a chemical water treatment choice: H3 Pressure Boiler water systems function at different pressures depending on the application.

Performing a Combustion Analysis - ACHR Ne

Mar 03, 2008· As a safety factor, to ensure complete combustion, appliances are fired with excess air. One of the factors influencing NOx formation in a furnace or boiler is excess air. High excess air levels (>45 percent) may result in increased NOx formation because the excess nitrogen and oxygen in the combustion air entering the flame will combine to

Oxygen attack in boilers - Lennte

Oxygen attack in boilers, formation consequences and reactions. In order to meet industrial standards for both oxygen content and the allowable metal oxide levels in feed water, nearly complete oxygen removal is required. This can be accomplished only by efficient mechanical deaeration supplemented by a properly controlled oxygen scavenger.

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zhulin@zozen.com

No. 76, Xin Da Road, Zhou tie Town, Yixing, Wuxi, China

0086-510-68530066, +86-13506151292

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