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what is meant by back fire in fire tube 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.

What is the procedure to light a boiler? - Quo

LDO is used to light up the boiler .LDO Is light diesel oil.Its ignition temperature is very less when compared to HFO or Coal. To take Ldo we have to purge boiler for Five minutes. Then we will have permissive to light up boiler By using LDO We c

Boiler Operation Training - from Start-up to Lay-

Boiler care while running on load/ Monitoring of perfect combustion: Flame should fill the furnace without any impingement. Color of flame should be moderately bright orange. Flue gas analysis should give the following readings: 1. Oxygen: 3-4 % by volume (for fire tube boiler). 0.5-1.5 % by volume (for water tube boiler with high efficiency

Hot water boiler design - Gray Furnaceman Furna

A copper boiler is a water tube boiler. On the left are the tubes used in a copper boiler. The hot gasses pass across the fins and the fins transfer heat to the water inside. These boilers are often used in domestic hot water applications. These boilers are not as long lasting as cast iron or steel.

Boiler - Wikiped

Fire-tube boiler: Here, water partially fills a boiler barrel with a small volume left above to accommodate the steam (steam space).This is the type of boiler used in nearly all steam locomotives.The heat source is inside a furnace or firebox that has to be kept permanently surrounded by the water in order to maintain the temperature of the heating surface below the boiling point.

BOILER EFFICIENCY GUIDE - Cleaver-Broo

not need high maintenance, boiler tube, add-on devices if the boiler is designed for optimum flue gas velocities in the first place. Each boiler pass should be designed with a cross sectional area to achieve optimal flue gas velocity, which in turn maximizes heat transfer while also minimizing performance robbing soot build-up within the tubes.

Fireball | Definition of Fireball at Dictionary.c

Fireball definition, a ball of fire, as the sun; a shooting star. See more.

Water Tube Or Fire Tube Boiler - Industrial Professiona

This is a robust, rugged, process design type of boiler with good operting flexibility and turn-down characteristics. A fire tube boiler is meant for much smaller service and usually for small working pressures: 35 - 75 psig and no superheat. It is primarily a commercial machine meant for launderies, heating plants, hospitals, hot water, etc.

What is difference between vertical and horizantal boil

there are two types of boilers water tube and fire tube. fire tube boilers are divided in to two categories vertical and horizontal. this according to the construction of fire tubes. it is said

Shell Boilers | Spirax Sar

Shell boilers may be defined as those boilers in which the heat transfer surfaces are all contained within a steel shell. Shell boilers may also be referred to as ‘fire tube’ or ‘smoke tube’ boilers because the products of combustion pass through the boiler tubes, which in …

Introduction to the boiler house | Spirax Sar

This meant that less energy had to be stored in the boiler water. The boiler could therefore be smaller, radiating less heat to the environment, with a consequent improvement in efficiency. The smaller size also meant that the boiler occupied less production space. Mechanical stokers were eliminated, reducing maintenance workload.

MFTHW080NA1XN - Laars MFTHW080NA1XN - MFTHW-80

Laars MFTHW080NA1XN - MFTHW-80 74,400 BTU Output Mascot FT High Efficiency, Wall Mount Heat Only Fire Tube Boiler (NG or LP) - Note: Product Title reflects this boiler's DOE Net Output Rating. The Mascot FT is packed with intelligent features that satisfy the space heating and domestic hot water needs of the modern home. You’ll enjoy the quick heating response, exceptional efficiency and

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