We founded in 1988, with 32 years'experience in research development and manufacture of industrial boiler. Our boiler are saled for more than 100 countries and regions like Egypt, Ethiopia, Congo, Mauritius, Tanzania,South Africa, Mexico, Ireland, Indonesia etc.
7*24 hours online service：email@example.comGet Free Quote
Product Thermal Capacity: 1 - 20 t/h
Working Pressure: 0.7 - 2 Mpa
Product Thermal Capacity: 20 - 110 t/h
Working Pressure: 1.25 - 5.3 Mpa
Product Thermal Capacity: 2 – 20t/h
Working Pressure: 1 - 2.5 MPA
Product Thermal Capacity: 4 - 35 t/h
Working Pressure: 1.0 - 2.5 MPA
The flue gas temperatures were over 3,000F at the superheater gas side inlet. At this temperature, the ash condition was fluid, and it only took a couple of shifts to completely slag the furnace exit.
Flue gas composition is significantly affected by the combustion conditions. Concentration of gaseous species upon firing 1.7% S coal (chemical composition is given in Table 1) was calculated at 1300 °C, assuming thermal equilibrium, and presented in Figure 2 as a function of air–fuel ratio. In this chapter, air–fuel ratio is defined by the ratio of their weights; air–fuel ratio of 10
measurements indicate an excess air level of 44.9% with a flue gas minus combustion air temperature of 400°F. From the table, the boiler combustion efficiency is 78.2% (E1). Tuning the boiler reduces the excess air to 9.5% with a flue gas minus combustion air temperature of 300°F. The boiler combustion efficiency increases to 83.1% (E2).
1) "Net stack temperature" is temperature difference between flue gas temperature inside the chimney and room temperature outside the burner. Flue Gas Loss with Oil Combustion. The relation between temperature difference in flue gas and supply air, the CO 2 concentration in the flue gas, and the efficiency loss in the flue gas oil combustion, is expressed below:
Stack loss generally ranges from as much as 30 percent for a green-wood-fired boiler, to 18 percent for a typical natural-gas-fired boiler, to 12 percent for an oil-fired boiler, to as low as 9 percent for a coal-fired boiler. It must be pointed out that the stack-loss range is wide for any given fuel.
The recovery of heat from the flue gas is an effective way to improve the thermal efficiency of a boiler. In a coal-fired boiler with wet-desulphurization, a portion of the flue gas thermal energy is used for the latent heat process, which leads to temperature reduction and humidity increase.
Obstacles to Measuring CO in Coal Fired Boilers. Measuring CO accurately and reliably in coal fired applications has traditionally been extremely challenging. Some of the obstacles that must be overcome: Flue gas laden with fly ash particulate; High temperature in the optimal measuring location; Stratification of gas concentrations
heat transfer. The stack temperature of a 4-pass boiler will be lower than the stack temperature of a 2 or 3-pass boiler, of the same basic design, operating under similar conditions. Because of this fact, the 4-pass will have higher efficiency and lower fuel cost. This is not an opinion; it is basic heat exchanger physics. The 4-pass design
Effects of Coal-Fired Boiler Flue Gas Conditioning on Fly Ash … 14 нояб. 2013 г. – Pulverized coal-fired boiler – Wikipedia A pulverized coal-fired boiler is an industrial or utility boiler that …
Dec 31, 2017· Hand Fed Coal Boiler: DS AquaGem 1100 Coal Size/Type: Blaschak bulk pea/nut 2017 1:09 am I just got a magnetic stove thermometer so I can start keeping track of flue temperature. I'm trying to get an idea of the ideal "mix" and "max" temps on my furnace. Ideal flue gas temp. should be high enough to prevent condensation in the chimney
You can send a message to us by this email to firstname.lastname@example.org
If you have any problems about our product and service,please feel free to give your inquiry in the form below. We will reply you within 24 hours as soon as possible.Thank you!