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...
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 ...
The circulating pressure of a thermal oil boiler is generated by the driving of the circulating oil pump to the thermal oil circulation. Generally, the working pressure of the thermal oil pump is 4 ~ 8kg / cm2. Actually, the pressure of the thermal oil pump differs from different working conditions.
What are the factors that affect the maximum pressure of thermal oil heater?
1. Pressure of circulating hot oil pump
The pressure of liqu...
Circulating fluidized bed boiler adopts fluidized combustion mode, which is especially suitable for inferior coal fuel and biomass bulk materials. The process of circulating fluidized bed boiler includes internal circulation and external circulation, which is the basic technical point of the boiler. What do the internal circulation and external circulation of circulating fluidized bed boiler mean?
Internal circulation and external circulation of fluidized bed boiler
The internal circul...
a) Boiler hot water system design should meet the requirements of Code for design of boiler plant GB50041.
b) Steam collecting device should be installed in the highest position of hot water system and the position where is easy to collect steam. Reliable constant pressure measures and circulating water expansion device should also be set to ensure that pressure in system is not lower than the corresponding saturation pressure of outlet water temperature plus 20 °C so as to avoid boiler wat...
