Control your Secondary Air Flow and OFA flows to the highest accuracy levels using a digital air flow sensor. Enhance your efficiency, lower your heat rate and your NOx emissions through precise digital flow sensor technology.
Digital and accurate air flow measurement for your boiler using advanced digital air flow sensor solutions
Exact measurement of SA and OFA flows: the whole combustion in your boiler is depending on the correct distribution of SA and OFA flows on a burner by burner and row by row basis. Large imbalances of air flows to the boiler are common and due to insufficient analogue measurement technology. Switch over to digital air flow sensor solutions by PROMECON in order to have the same exact air flow to each burner, windbox or OFA nozzle, ensuring stable secondary air flow.
Better flame control: the exact digital measurement provided by a digital flow sensor will enhance the flame control of each burner. Flame attachment will be enhanced, flame impingement on the boiler wall be reduced. The right amount of SA and OFA flow achieved through accurate Secondary Air Flow control will also be important for the overall gas and heat distribution downstream the furnace section in the super- and reheaters.
One measurement for life: recalibration as well as adjustments or cleaning of the sensors will be a thing of the past. PROMECON´s digital air flow sensor never needs readjustment or recalibration over the entire life of the measurement system, making it ideal for long-term Secondary Air Flow monitoring.
How Air flow influences your combustion performance
Low NOx coal combustion - unthinkable without exact air flow: PROMECON´s digital flow sensor ensures that on the burner nozzle as well as in a complete burner row the right amount of oxidation air is present through precise secondary air flow distribution. By this the overall O2 level can be reduced, hence reducing NOx. PROMECON´s SA flow helps to keep unburned carbon low and protects the boiler wall even at low stoichiometries.
OFA effectiveness: OFA systems only work if the air distribution between SA and OFA is correct. The digital air flow sensor measurement will guarantee that this is always the case, making OFA systems reliable and effective by maintaining stable secondary air flow.
Keep your boiler wall safe: by use of PROMECON´s McON air system equipped with a digital flow sensor, uneven distribution of Oxygen in the boiler can safely be prevented. The combustion will be more uniform and no pockets of high CO or other anomalies will be present in your boiler due to controlled secondary air flow.
How accurate air flow measurement impacts your boiler efficiency
Digital and accurate measurement using a digital air flow sensor means less headache: from the operators via the maintenance up to the management of the boiler there will be a lower load of concern and work in order to keep the combustion up to the expected performance levels with reliable secondary air flow control.
Lower Maintenance cost: the sheer amount of impulse line cleaning and recalibration can vastly be reduced. McON air does not have any impulse lines. Its measurement is purely based on time measurement using a digital flow sensor. Man power levels as well as down times of the measurement will vastly be reduced using PROMECON technology for secondary air flow.
Reduce boiler operating cost by reducing process noise: the old analogue measurement technology results in swinging dampers and fans. Go digital with a digital air flow sensor and eliminate any drift out of your measurement, leading to tighter fan control and optimized secondary air flow at all times, reducing maintenance and electricity consumption.
Key features:
1. Digital flow measurement: the McON air works as a digital flow sensor, measuring only the time of flight of the gas. The measurement is 100% drift free and does not need cleaning, zero of span adjustment, nor recalibration – ideal for secondary air flow measurement.
2. Vector flow measurement: unlike all other commonly used measurement devices for air flow in ducting, McON air equipped with a digital air flow sensor measures velocity as a vector in the orientation of the duct direction, ensuring accurate secondary air flow measurement independent of swirl or lateral flow.
3. Easy installation: McON air sensors do not need any impulse lines. They can easily be integrated into the existing duct configuration. Existing plants can easily be equipped with a digital flow sensor solution for reliable secondary air flow measurement.
4. High turndown ratio: The measurement curve of McON air using a digital air flow sensor is strictly linear. High turndown ratios can be achieved, allowing reliable secondary air flow measurement even at low loads.
Application:Measure the exact amount of primary air into your pulverizer using accurate airflow measurement.
Benefits: Have better control over coal bed depth, particle size as well as correct transport conditions of the solid fuel to the burners, directly improving coal fired power plant efficiency. Have better control over flame attachment and NOx formation supported by modern power plant instrumentation..
Application:Measure flue gas flow out of your boiler directly and drift free as part of comprehensive power plant instrumentation.
Benefits:Measure the exact amount of boiler gas flow. Detect imbalances of flue gas flow between ID fans using accurate airflow measurement. Optimize air heater, ID fan and scrubber performance to enhance coal fired power plant efficiency.
Application:Measure your unburned carbon in the fly ash in real time as part of advanced power plant instrumentation.
Benefits: Optimize your combustion efficiency by active O2 and UBC monitoring directly improving coal fired power plant efficiency. Enhance your air staging in the boiler using the UBC information in the fly ash. Optimize your fly ash sorting process by the online detection of quality ash and rejection ash supported by reliable airflow measurement.
Primary Air Flow Measurement for Coal Power Plants
Optimize primary air flow through your pulverizer using precise primary air flow control. Better control over particle size, safe transport to burner, coal moisture supported by accurate air flow measurement.
Measure your primary air drift free and accurate all the time with advanced air flow technology
Precision measurement and control: The digital air flow technology will always provide you a 100% drift free and accurate air flow measurement through your mills.
Better mill control: you will have a better handle on mill filling levels, mill grinding condition as well as mill dynamics with a digital and accurate control of your Primary Air Flow.
Better fuel flow control: you will have a better control over the transport velocities, moisture and particle size of your pulverized coal. The PA flow is one of the most essential air flow measurement points in a milling process.
Enhance the crucial parameter of primary air in your milling process with reliable primary air flow monitoring
Optimize your boiler efficiency: The exact long term Primary Air Flow control through all pulverizers of your plant will ensure a more steady and flat-lined combustion throughout all burner levels. Hence excess air levels can be reduced using accurate air flow measurement.
Less mill downtime: Mill trips due to unsteady air flow measurement will be a thing of the past. Have a higher reliability of your mill through stable primary air flow control. Also reduce wear on your tires due to a better bed depth control of the coal.
Better NOx and UBC control: reduce your primary pollution by NOx as well as CO and UBC by a better fineness control through correct Primary Air Flow settings enabled by digital air flow technology.
Our MECONTROL Coal Product for Power Plants
Increase load flexibility, lower NOx and particle size of your combustion with optimized Primary Air Flow
Larger fuel variability: changing fuels can save massive costs for a plant. However the mills need to be capable of dealing with different fuel types. The accurate settings of crucial mill parameters such as Primary Air Flow substantially helps with this using precise air flow measurement.
Better load swing capacity: renewable energy demands higher load swings of coal fired power stations. For any rapid change in load mill control and hence Primary Air Flow control to the mill is absolutely essential. The coal charge and discharge function of a mill is dependent upon correct air flow measurement and PA settings to the mill.
Lower maintenance on your PA flows: the digital PA measurement of PROMECON based on advanced air flow technology drastically reduces maintenance requirements. There is no need for cleaning or purging of the flow meters. Also, any recalibration of zero or span is not necessary as the digital system is measuring air velocity directly and hence will keep its calibration over it´s life time, ensuring stable air flow measurement.
Key features:
1. Digital air flow technology: no need for recalibration, zero and span adjustment
2. No maintenance: there is no regular cleaning nor any recalibration necessary on this air flow measurement technology. Hence the measurement offers a high reliability in service when used on coal pulverizers.
3. Easy installation on existing pulverizers: find the location of your old air flow measurement. McON air will fit in easily, using existing venturis or airfloils while upgrading to modern primary air flow measurement. Use the advantage of the easy installation of a digital flow meter. No impulse lines no plumbing.
Application: measure the combustion air flow to your windbox or your individual burners and OFA ports with reliable airflow measurement.
Benefits:Have an exact secondary air distribution to all burners and OFA ports at all times without any drift. Avoid NOx formation, CO formation, flame impingement. Reduce hot spots in your boiler as well as slagging, contributing to higher coal fired power plant efficiency. Allow much better O2 trimming and reduce boiler losses and heat rate using advanced power plant instrumentation.
Application:Measure flue gas flow out of your boiler directly and drift free as part of comprehensive power plant instrumentation.
Benefits:Measure the exact amount of boiler gas flow. Detect imbalances of flue gas flow between ID fans using accurate airflow measurement. Optimize air heater, ID fan and scrubber performance to enhance coal fired power plant efficiency.
Application:Measure your unburned carbon in the fly ash in real time as part of advanced power plant instrumentation.
Benefits: Optimize your combustion efficiency by active O2 and UBC monitoring directly improving coal fired power plant efficiency. Enhance your air staging in the boiler using the UBC information in the fly ash. Optimize your fly ash sorting process by the online detection of quality ash and rejection ash supported by reliable airflow measurement.
Online Monitoring of Unburned Carbon to Maximize Fly Ash Utilization
Reduce Unburned Carbon to a minimum. Online monitoring of unburned carbon helps to maximize environmental compliance and fuel efficiency.
Monitor your fly ash quality online
Representative measurement of UBC: McON UBC allows the online measurement of the fly ash carbon content directly in the bulk fly ash on the EP outlet, providingaccurate unburned carbon visibility.
Low maintenance solution for your plant: the McON UBC system has the lowest maintenance requirement of UBC analyzers. It works non extractive and hence has no problems with ash congestion or blocking of parts, supporting stable monitoring of fly ash carbon content.
Monitor your LOI: the UBC measurement also allows to monitor the LOI for environmental compliance and the resale of the fly ash based on controlled unburned carbon levels.
Enhance the environmental compliance of your plant
Lower your environmental footprint: The online monitoring of unburned carbon will allow you to use the UBC as target parameter in order to lower your excess air settings. This will increase plant efficiency, lower heat rate as well as particulate emissions while improving fly ash carbon content control.
Maximize your ash sales: by online monitoring of fly ash carbon content, the ash can be sorted and the yield of sellable fly ash can be maximized. Hence the fly ash disposal volumes can be minimized.
Optimize your plant´s coal diet: The monitoring of unburned carbon will also allow to adopt to different types of coal with varying volatile content and reactivities. The UBC measurement can be used to find adapted combustion settings while maintaining acceptable fly ash carbon content.
Optimize your plant cost
Maximize fuel use: The unburned carbon content is directly proportional to the fuel loss of the boiler. Monitoring this parameter will help to increase the efficiency of your plant and reduce fly ah disposal requirements.
Minimize your ash disposal cost: Making best use of the fly ash will minimize your cost for fly ash disposal. Fly ash quality defined by fly ash carbon content is a key parameter of competitiveness of a coal fired plant.
Minimize your maintenance: The low maintenance requirement of the UBC system keeps down your maintenance cost for the UBC instrumentation while reducing the need for lab analysis. So, the cost of unburned carbon monitoring comes down.
Key Features:
Instant UBC analysis: get a new value for unburned carbon every few minutes.
Representative measurement: ensuring reliable fly ash carbon content monitoring The measurement of McON UBC happens in the bulk fly ash and not with a tiny sample from the flue gas duct.
Unique patented solution: McON UBC is based on PROMEOCN´s patented measurement technology which is measuring unburned carbon on a compacted bulk fly ash sample online, supporting optimized fly ash disposal strategies.
Application:Measure the exact amount of primary air into your pulverizer using accurate airflow measurement.
Benefits: Have better control over coal bed depth, particle size as well as correct transport conditions of the solid fuel to the burners, directly improving coal fired power plant efficiency. Have better control over flame attachment and NOx formation supported by modern power plant instrumentation..
Application: measure the combustion air flow to your windbox or your individual burners and OFA ports with reliable airflow measurement.
Benefits:Have an exact secondary air distribution to all burners and OFA ports at all times without any drift. Avoid NOx formation, CO formation, flame impingement. Reduce hot spots in your boiler as well as slagging, contributing to higher coal fired power plant efficiency. Allow much better O2 trimming and reduce boiler losses and heat rate using advanced power plant instrumentation.
Application:Measure flue gas flow out of your boiler directly and drift free as part of comprehensive power plant instrumentation.
Benefits:Measure the exact amount of boiler gas flow. Detect imbalances of flue gas flow between ID fans using accurate airflow measurement. Optimize air heater, ID fan and scrubber performance to enhance coal fired power plant efficiency.
Airflow Optimization & Flue Gas Flow Measurement for Boilers
Check out your total gas flow out of the boiler online to support airflow optimization and improve overall combustion efficiency. Going beyond just O₂ measurement for optimization by enabling accurate airflow measurement across critical boiler and duct sections.
Digital online flue gas flow measurement is here, providing continuous visibility into real-time process conditions
Dealing with large ducts: McON air is designed as vector measurement, supporting reliable airflow measurement in complex duct geometries. This enables the measurement of extremely large cross sectional areas by a multipoint measurement, improving airflow optimization across the system. Measure ducts right out of your Air Heater or into your ID Fan or scrubber for precise flue gas flow measurement.
Dealing with dust: no matter how dusty your flue gas may be, McON air uses the dust as a tracer for a high accuracy digital measurement, ensuring stable airflow measurement even in harsh environments.
Go Digital, go multipoint: the no maintenance requirements of the McON air system make it ideal for use on large duct works, where multiple flue gas flow measurement points are required. Rely on total airflow measurement for years without the need for maintenance nor recalibration, enabling long-term airflow optimization.
How flue gas flow measurement makes a difference in your draught fan group
Measure your ID fan flows: the flow resistance of the A and the B pass of your air heaters and bag houses might be different, resulting in imbalance and reduced airflow optimization. Accurate flue gas flow measurement helps adjust ID fans to optimize opacity and fan power consumption through omproved airflow measurement.
Measure the input into your scrubber systems: measure and control the flow into multiple scrubbers using precise airflow measurement. Very often uneven flow distribution into a scrubber system will result in higher SOx emissions and in extreme cases, lime carryover into stacks. Consistent flue gas flow measurement supportts better emission control.
Get a feeling for your air inleakage: the O2 measurement on the boiler outlet is often not representative of the true average O2. On top of that, there might be significant inleakage between the AH outlet and the ID fan. Continuous airflow measurement enables early detection and corrective airflow optimization.
Savings potential by optimized flue gas flow
Save electric power: correcting gas flow distribution and balance on the ID fan level through accurate flue gas flow measurement will result in significant electric power savings, directly supporting airflow optimization strategies.
Reduce your ingress air losses: measuring accurate gas flows using advanced airflow measurementtechniques results in reduced flue gas flow demand on the ID fans.
Detect maintenance problems with your air heaters: Flue gas flow measurement downstream of the air heaters reveals imbalances between the A- and B-side air heater, allowing targeted maintenance and improved airflow optimization with substantial savings potential.
Key features:
Digital measurement: totally drift-free, no maintenance, allowing multiple airflow measurement points in hot and dusty flows online over years.
Vector measurement: measure large ducts independent from swirl and other lateral air velocities. Since honeycomb flow straighteners can`t be fitted into bulk gas ducts, vector-based flue gas flow measurement is the only reliable option for accurate airlfow optimization.
High Temperature: Measure hot gas up to 800°C with reliable airflow measurement. Usual restrictions of dP measurements, ultrasonic or hotwire anemometers at high gas temperatures do not apply to McON air digital flue gas flow measurement technology.
Application:Measure the exact amount of primary air into your pulverizer using accurate airflow measurement.
Benefits: Have better control over coal bed depth, particle size as well as correct transport conditions of the solid fuel to the burners, directly improving coal fired power plant efficiency. Have better control over flame attachment and NOx formation supported by modern power plant instrumentation..
Application: measure the combustion air flow to your windbox or your individual burners and OFA ports with reliable airflow measurement.
Benefits:Have an exact secondary air distribution to all burners and OFA ports at all times without any drift. Avoid NOx formation, CO formation, flame impingement. Reduce hot spots in your boiler as well as slagging, contributing to higher coal fired power plant efficiency. Allow much better O2 trimming and reduce boiler losses and heat rate using advanced power plant instrumentation.
Application:Measure your unburned carbon in the fly ash in real time as part of advanced power plant instrumentation.
Benefits: Optimize your combustion efficiency by active O2 and UBC monitoring directly improving coal fired power plant efficiency. Enhance your air staging in the boiler using the UBC information in the fly ash. Optimize your fly ash sorting process by the online detection of quality ash and rejection ash supported by reliable airflow measurement.
