20

Mar 2017

Wet Scrubbers

Wet Scrubbers are the pollution control equipment that helps in controlling the pollution by reducing the concentration of pollutants such as Sulfur dioxide (SO2) and ash content in exhaust flue gases. As the pollution norms are getting stringent and the government is making sure that pollution laws are being implemented, many industries are coming up with various solutions and strategies for reducing the pollution and its management. One such solution…

Dry Bottom Boiler A dry bottom boiler – The burner fires in the base of the boiler and it warms beneath the water some portion of the boiler. No slag tanks at heater throat zone. The throat range is clear. Base fiery remains drop through the throat to the base powder water containers. This plan is utilized where the slag dissolving temperature is more noteworthy than the temperature on the…

10

Mar 2017

What is Boiler?

What is Boiler? A boiler is defined as “a closed vessel in which water or other liquid is heated, steam or vapor is generated, steam is superheated, or any combination thereof, under pressure or vacuum, for use external to itself, by the direct application of energy from the combustion of fuels, from electricity or nuclear energy”. Furnaces compatible with solid fuels(wood/coal/briquettes/pet coke/rice husk) and liquid fuels (LDO/Furnace oil) and Gaseous…

Chimney:- Chimney, as we know, is used to reject the flue gases to the atmosphere, coming from the Steam Boiler during operation. Also, it is a mega structure in Steam Boiler assembly and any discrepancy in its structural and foundation work can cause extremely serious damages, may even lead to casualties or plant shut off till its re-erection. The designer must consider all the factors while designing chimneys and one…

What is Mobrey? Mobrey is the name used for the Automatic water level controller; it comes under the category of mountings and fittings of Steam Boiler Assembly. As the name suggests, it is used for maintaining the water level in the Boiler shell. Mobrey is mostly used in smoke tube steam boilers not in water tube boilers, as the shell diameter of the former is greater than that of latter…

Forced Draft Fan is a type of a fan supplying pressurized air to a system. In the case of a Steam Boiler Assembly, this fan is of a great importance. As we know, for a Steam Boiler to generate steam, combustion must occur, be it any fuel (wood/coal/rice husk/pet coke/LDO/Furnace oil) and for combustion to exist one of its three main requirements, is the air. And this requirement is compensated…

In winters, human bodies shiver, so we insulate ourselves by wearing woolen clothes. A boiler in operation doesn’t shiver to maintain its internal energy, even if it did, it would have been highly undesirable keeping in mind the impacts of vibration in a system. Ambient temp being extremely low, so the temperature difference between human body and ambient is large. This enhances the heat transfer between them, this woolen insulation…

As we all know, the air pollution norms are getting stricter with every day passing by. So it becomes quite obvious to install and commission an air pollution control device. One such air pollution control equipment is the Bag Filter. Bag Filter helps in separating the particulate matter from the flue gas coming out of the Boiler. Most common type of Bag Filter is Pulse jet type. Pulse jet bag…

06

Feb 2017

Boiler Aging

Boiler Aging Like humans, even Steam Boiler ages with time. And it is essential for one to be aware of the changes that Boiler goes through with time. The life cycle of Steam Boiler components is governed by the magnitude of stress, variation in operating parameters, chemical regime during its service life and suitability of materials to sustain those conditions. IBR Regulation – 391 A As per IBR Regulation –…

Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels. A bed of solid particles is said to be fluidized when the pressurized fluid (liquid or gas) is passed through the medium and causes the solid particles to behave like a fluid under certain conditions. Fluidization causes the transformation of the state of solid particles from static to dynamic. Fluidized Bed Combustion is the ignition of a…

A steam boiler is a device used to create steam by applying heat energy to water. Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed steam boiler and worked at low to medium pressure (1–300 psi or 6.895–2,068.427 kPa) but, at pressures above this, it is more usual to speak of a steam generator. Source – Wikipedia Purpose of steam boilers For generating power…

Steam accumulators is a pressure tank that is coated with steel for the purposes of holding steam under high pressure. Purpose of the steam accumulators is to release steam at the time when the demand for the steam is greater that the ability of the boiler to supply the amount required and when the demand is low, it helps to accept the steam back, To meet fluctuating & sudden steam…

A boiler designed to generate 5000 kg/hr steam for & at,100-degree Celcius at mean sea level will not give the same quantity of steam if shifted to an elevated place. It will give less steam. Due to decreased air density at higher altitude, it will consume the same volume of air but will not consume the same mass of air. This results in less fuel consumption & less steam generation…

Our Pressurized Condensate Recovery Module (PCRM) is a unique system wherein the condensate generated from your process is fed back under pressure directly to the boiler, unlike any other conventional condensate recovery system where the condensate is discharged at atmospheric pressure. Our Pressurized Condensate Recovery Module system serves you the following advantages Whole condensate is recovered No Flash steam loss Minimal make-up water requirement Reduced water treatment cost for make-up…

What is Bag Filter? A Bag Filter is an air pollution controlling industrial equipment, used prominently in a Steam Boiler House Assembly. It is used to control the levels of sulfur dioxide and others. There are different types of Bag Filters such as Shakers, Reverse Air and Pulse Jet type, with Pulse jet type being the most promising one of outstanding results. A Pulse Jet type Bag Filter consists of…

A combi boiler or combination boiler is the most commonly used boiler in the India. Combi Boiler is a unique membrane design water wall type boiler which combines the advantages of both water tube & smoke tube steam boilers. A combination type of steam boiler is the one which has the operational characteristics of both smoke tube and water tube steam boiler respectively. Unlike the packaged type Boilers, here the furnace is external…

Fusible Plug is a fitting used in Steam Boilers to enhance the safety during operation. It’s working depends upon the water level in the Boiler shell. A fusible Plug is a threaded metallic cylindrical object, with a tapered hole in it which goes through its entire length. It is usually of brass, bronze or even gunmetal. In a smoke tube steam boiler, it is fitted on the front tube sheet,…