Sulfur dioxide is a common sulfur oxide, which dissolves in water to form sulfurous acid. When oxidized in the presence of PM2.5, it will quickly and efficiently generate sulfuric acid and cause acid rain. Therefore, the concentration of sulfur dioxide in boiler flue gas directly affects the environment, and is valued by many parties.
How is sulfur dioxide produced in boiler?
The principle of how sulfur dioxide is produced in boilers using different fuels is different. Sulfur in solid ...
Before degassing and dehydration, boiler parts must be checked, and detailed inspection items are as follows:
1.Burners work well, combustion is stable and combustion load change can be controlled freely.
2.Auxiliary such as FD fan, ID fan, oil system equipment and so on shall do cold test and run normally.
3.Lubricating oil shall be full filled in all bearing boxes and oil cups.
4.Inspection of safety accessories and protective equipment:
a) The needle valve or the stop valve in the pressu...
Tap water or water with a lot of impurities will cause the magnesium ions and calcium ions in the water to form some white precipitates when heated at high temperature, causing scaling problems and reducing the heat transfer efficiency of the boiler. Boiler operation safety brings hidden dangers, even shutdown.
The specific reason why softened water must be used in hot-water boilers is that it will not produce scale in the process of use, so that potential safety hazards of boilers can ...
Before coking and boiling, check boiler parts detailedly. Inspection items are as follows:
1. Before coking and boiling, chain grate should be cold test run again and continuous running time shall not be less than 24 hours.
2. Ignition door can be opened flexibly, coal gate can be lift and dropped conveniently, coal gate left and right side is of the same distance to grate, and ensure the material layer thickness on both sides of the furnace is equal. If distance is not equal, it can be adjust...
1. After boiler body, economizer, air pre-heater, dust collector, etc are in place and installed, connect FD fan, ID fan, etc according to drawing and then connect corresponding flue gas duct. After fan in place, alignment between foundation and equipment base should be conducted with parallels. Fan position alignment should center on a shaft, central elevation deviation and vertical and lateral central line positional deviation should be 10mm or less and fan spindle should be in level state. Th...
1. Burner should be installed in accordance with requirements of burner installation and operation manual.
2. Burner should be installed in the center of the reserved front wall hole, the embeded length should comply with the design requirements and the fixation should be reliable.
3. Burner center deviation shall not be more than +2mm and air adjustment actuator should be flexible.
4. Burner and boiler body junction surface should be sealed reliably, the position that needed to be sealed bet...
The design and construction of gas boiler room is also a very important point in boiler safety. How to install the gas boiler should also conform to the boiler room design specification, and it is necessary to comply with the site, space, protection and other aspects.
How to install the gas boiler?
How to install the gas boiler is mainly based on the Boiler Room Design Code and Boiler Safety Technical Inspection Code. In addition, the Urban Gas Design Code and the Fire Protection Code ...
As a clean fuel, natural gas has much lower sulfur content and nitrogen content than coal, and there is no ash in the fuel, and the flue gas produced after combustion is almost smoke-free. Therefore, a nationwide upsurge of coal to gas has been set off.
However, there are some problems in the process of gas boiler operation, among which the hardness, harm and treatment of gas boiler flue gas condensate are prominent.
When the boiler flue gas temperature is lower than the dew po...
