How do soot blowers work?
Soot blowers are placed in the flue gas path to clean some portion of the tube. When blowing is starting this high pressure steam comes out at high velocity from the nozzle of blower. This high velocity steam clean the soot deposits on the tube. The blower rotates by 360 degree by means of electrical motor.
What is retractable soot blower?
A sootblower is a device for removing the soot that is deposited on the internal furnace tubes of a boiler during combustion to prevent plugging of the gas passes and maintain boiler efficiency.
What is soot blowing in boiler?
A soot blower blasts air, steam or water (or a combination) to remove soot and ash from the interior walls of the boiler heating surfaces. The soot blower can be set to operate automatically at timed intervals or be controlled manually.
What is the advantage of using retractable sootblower?
These low cost, compact and easily maintainable sootblowers are constructed for dependable operation indoors or outdoors in all climates. They can use air, saturated or superheated steam as a cleaning medium and their compact design makes it possible to fit these units in tight spaces.
How many types of soot are there?
There are two types of soot blowers. These are rotary soot blowers (RSB) and long retractable soot blowers (LRSB) . Rotary soot blowers rotate at a fixed position. In long retractable soot blowers the lancer enters into flue gas path and also rotates like rotary blowers.
Does soot insulate?
No matter what type of fuel is used (gas, oil, coal), soot quickly accumulates in the firetubes. Because soot has five times the insulating value of asbestos, the heat transfer loss in a dirty boiler rises dramatically, as the layer of soot builds up.
What is Wall blower?
Wall blowers are provided in boilers to clean the furnace wall deposits. They seldom finds use in oil and gas fired boilers. The deposition and slagging in boiler furnace is required to be removed from the furnace walls at regular intervals.
How does soot absorb heat?
Beyond its impact on health, soot, known as black carbon by atmospheric scientists, is a powerful global warming agent. It absorbs sunlight and traps heat in the atmosphere in magnitude second only to the notorious carbon dioxide.
How does soot affect heat of combustion?
Soot forms as a result of incomplete combustion. To achieve incomplete combustion instead of complete combustion, the fuel must burn at a lower temperature with a slightly reduced supply of oxygen. When the fuel burns, it breaks into small particles that include soot, which settles out as a dark powdery deposit.
Is charcoal the same as soot?
Unfortunately, the terms carbon black and soot often have been used interchangeably; however, carbon black is physically and chemically distinct from soot. Greater than 97% of carbon black consists of elemental carbon arranged as aciniform particulate.
How can soot be reduced?
We can switch away from diesel fuels, or use more efficient, low-emission diesel engines. And there are other measures that can help reduce the volume of soot released into the atmosphere. “You can certainly put on particle traps on vehicles, off road equipment, passenger vehicles and buses, trucks.
Is soot just carbon?
Soot (/sʊt/ suut) is a mass of impure carbon particles resulting from the incomplete combustion of hydrocarbons.