Type: Filter element & screen
Bluslot provides customized services for the filter element of the methanol boiler.
- About fuel: methanol
- About boiler: brief introduction of boiler
- About combustion system: burner
- Boiler definition: an energy conversion equipment. The energy input to the boiler includes chemical energy and electric energy in the fuel. The boiler outputs steam, high temperature water or organic heat carrier with certain heat energy.
The burner is the core part of the methanol boiler. After the fuel oil is injected into the furnace through the burner, it is mist like oil droplets, which are easy to mix with air and burn rapidly and release heat rapidly.
Burners are also called burners, which can be divided into oil burners and gas burners according to fuel; According to the use object, it can be divided into kiln burner and boiler burner; According to the application field, it can be divided into industrial burner, civil burner and special burner. The fuel burners are divided into light oil burners (such as diesel oil) and heavy oil burners (such as waste engine oil), and the gas burners are divided into natural gas burners, liquefied gas burners, city gas burners, biogas burners, etc. What we usually say about burners is boiler burners.
Advantages and principles compared with coal-fired boilers with the same parameters and capacity, the heat intensity of furnace volume can be doubled, that is 1046.6 × 10 kJ / m · H. However, in order to reduce the heat load in the burner area and avoid overheating of the water wall tubes in this area, the furnace volume is only reduced by about 1 / 3. Because the ash content in the fuel oil is very small, it will not form slagging on the convection heating surface, so the flue gas temperature at the furnace outlet can be as high as 1300 ~ 1350 ℃, and the pitch between tubes of the convection heating surface can be reduced to increase the flue gas flow rate, so as to improve the heat transfer coefficient of the heating surface and save the heating area and steel.
In order to prevent carbon black and oil fouling on economizer and air preheater from spontaneous combustion, steam soot blower is usually installed on these parts to keep heating surface clean. At the same time, because the fuel oil does not form coke and slag, the membrane water wall can be used to make micro positive pressure (500-1000 n / M) boiler. The utility model can save the induced draft fan, and only the forced draft fan can discharge the flue gas out of the furnace.
If the integral shell of the boiler is made of thick steel plate, it can also be made into a positive pressure (0.3-0.6 MPa) boiler, which can make the overall structure of the boiler more compact, and is mostly used in gas steam combined cycle generating units. The general layout of the boiler is similar to that of the coal-fired boiler, except that the bottom of the furnace of the oil-fired boiler is usually made into a heat preservation bottom inclined to the back wall by 10 ° to 30 ° to obtain good combustion characteristics. In order to atomize the fuel oil, there are two kinds of nozzles in oil burner: mechanical centrifugal nozzle and steam atomizing y nozzle.