Crystallisable Cooking Chemicals A Nuisance In The Flue Gas Channel The heat transfer surfaces and...
Increased energy efficiency and reduced environmental impact
Main advantages of the NIRAFON® in the energy industry
Slagging and fouling in steam boilers and HRSG disrupt efficiency, leading to unexpected shutdowns. Accumulated material is a common issue in many industries, causing filter clogs that damage equipment and increase air and electricity consumption.
Effective cleaning solutions are essential to maintain optimal operations and prevent costly disruptions.
Maintaining boiler plant efficiency ratio high continuous cleaning during the process,
- Maintains plant efficiency at a high level.
- Cleaning without interrupting plant process/production.
- Cleans also the shadow areas.
- Minimize requirement of manual cleaning and downtime.
- These all lead to reduced emissions.
Cleaning without damaging
- No erosion.
- No mechanical wear.
- No corrosion.
- Lower initial capital investment.
- Low operating costs.
- Low maintenance costs.
- Reduces the need of water at the plant.
- Lesser space requirement.
The NIRAFON system can be used in combination with existing cleaning system
NIRAFON comparison with sootblowing
Optimizing Boiler Performance: Comparative Test Runs at Suomenoja Power Plant (2000)
In the beginning of the year 2000, 18 sootblowers were utilized for boiler maintenance. However, during the summer outage, a strategic shift occurred. The traditional sootblowers were replaced with 12 advanced NIRAFON® 250-SS Acoustic Cleaners.
In the first graph, the reference points were selected to ensure comparable conditions. Specifically, the heat input to the boiler, measured in megawatts, remains consistent on days when the comparison values were recorded. The energy input into the boiler is uniform.
The second graph illustrates the thermal power obtained from the economizer, indicating how much heat energy is recovered from the flue gas into the water. In this case, the acoustic soot blower contributes more because the tubes, which the water and the flue gas flow through, are cleaner and facilitate better heat transfer from flue gas to water.
This graph depicts the pressure difference across the rotating air preheater. Generally, this is lower with an acoustic soot blower compared to a steam soot blower.
When the air preheater is cleaner the pressure does not rise with the air preheater, as the flow is more unobstructed, resulting in a smaller pressure differential before and after.
The graph outlines the daily steam consumption for soot blowing, which is naturally lower with acoustic soot blowing as it does not utilize steam whereas steam soot blowing does.
Since acoustic soot blowing is not in use throughout the entire boiler, steam consumption is not zero with acoustic soot blowing.