Air volume chart (wall hanging bracket)
Air volume inaccuracy is a common problem in boiler operation. High or low air volume in operation will bring great difficulties to the fine operation of the boiler, and even can not achieve a high level of operational objectives. High or low air volume will directly affect the boiler combustion efficiency and thermal efficiency. Because of the inaccuracy of wind measurement, it also brings great trouble to the fan efficiency measurement, so it is impossible to monitor and grasp the fan efficiency in time. The fan efficiency of power plants in China is generally low, and it is the biggest contributor to the plant consumption. Although the power plant costs a lot of money every year to ask professional institutions to test the fan performance and calibrate the wind meter, but these work on the operation of the power plant boiler has no practical effect.
Based on the principle of energy method, our company skillfully avoids the problems existing in the current air measurement test method, that is, it can simply and accurately measure the air volume, but also timely track the efficiency of the fan, which provides a solid foundation for fine filtration and air distribution operation and fan efficiency adjustment.
Field tests and trials show that the air measurement can be strictly accurate to less than 3%, and the fan efficiency can be timely tracked and displayed. It can play a great role in the following aspects:
1. the excess air coefficient can be accurately controlled, the combustion efficiency of the boiler can be increased, and the carbon content of fly ash can be reduced.
2. avoid excessive heat loss or increase of air volume and low combustion efficiency.
3. Real-time dynamic tracking of fan efficiency can provide decision-making basis for fan efficiency upgrade operation adjustment and upgrade of output, reduce unnecessary air supply to boiler, maintain the best operation state of fan, and reduce fan power consumption.
4. It is the foundation of establishing the reasonable flow field of CFB boiler, which is very important for combustion, heat transfer, anti-wear and even pollutant emission control.
Wind meter on-site Antu (Anhui Huadian Lu'an power plant)