WhatsApp)
In coal fired power plants, pulverised coal (PF) flow from coal mills is to be measured accurately for maximising combustion efficiency and improved dynamic response to load changes. However, realization of this is difficult due to the nonavailability of accurate measurement of online pulverised coal flow.
However, the flow field distribution in the pulverized coal flow is complex, and the particle velocities at different locations may be inhomogeneous [1]. Thus, the accurate measurement of particle velocities at different locations is important in studying the measurement mechanism of pulverized coal flow [2].
#0183;#32;RE: Pulverized Coal Flow Measurement Testing Requiremetns insult2injury (Mechanical) 13 Jan 07 12:34 We usually use 20D or longer if it can be accomodated for the straight pipe requirements but I think the PTC might be less stringent.
DYNAMIC FLOW SYSTEM Dynamic Flow System is especially developped to measure on line coal distribution to each business. Connected to the power Plant DCS system, it gives an accurate and reliable measurement which can easily be used to improve power Plant efficiency. From 1 mill up to 20 mills For all kinds of coal (black, lignite, anthracite, bituminous)
Apparatus for measuring the relative flow of pulverized coal in a plurality of pipes (10) connected between a common pulverizer (12) and respective burners comprises a plurality of electric charge sensors (26) each disposed in a similar position on the plurality of pipes. The electric charge sensors (26) sense an induced signal produced by charged pulverized coal particles.
The flow velocity and concentration of the coal particles is measured using two ultrasonic probes at an angle of 45#176; to the flow direction. The results show that the aberration of the ultrasonic online measurements of the pulverized coal flow is less than 3 % compared to the coal flow set by the experimental boiler test platform.
Pulverized Coal Flow Measurement Systems Our online Pulverized fuel flow measurement equipment, aptly named, PfFLO, is the most accurate and reliable method of measuring mass flow of coal in fuel piping systems in the world today. It is the only equipment to be independently tested for accuracy.
Measurement of the mass flow distribution of pulverized coal in primary air pipes using electrostatic sensing techniques Abstract: Online measurement of pulverized fuel (PF) distribution between primary air pipes on a coalfired power plant is of great importance to achieve balanced fuel supply to the boiler for increased combustion efficiency and reduced pollutant emissions.
#0183;#32;We are working with a German company to distribute a kind of pulverized coal flow measurement system in China,please contact me if you are interested in this system. Xueyan Li [email protected] Like Reply. Y. Oct 30, 2001 #4 I am from BHEL, India.
Apparatus for measuring the relative flow of pulverized coal in a plurality of pipes (10) connected between a common pulverizer (12) and respective burners comprises a plurality of electric charge...
Pulverized Coal Injection (PCI) systems should assure small linetoline deviations in order to maintain a healthy furnace. Reality is often different; consequently optimal injection rates are not reached. The CFM flow meters are the first step towards optimal injection rates: measure the flow
#0183;#32;RE: Pulverized Coal Flow Measurement Testing Requiremetns insult2injury (Mechanical) 13 Jan 07 12:34 We usually use 20D or longer if it can be accomodated for the straight pipe requirements but I think the PTC might be less stringent.
#0183;#32;We are working with a German company to distribute a kind of pulverized coal flow measurement system in China,please contact me if you are interested in this system. Xueyan Li [email protected] Like Reply. Y. Oct 30, 2001 #4 I am from BHEL, India.
For the CFM, a capacitive measuring method is being used, taking advantage of the different dielectric characteristics of coal powder (R) and of the conveying gas (0). Each CFM sensor consists of two different sets of electrodes. The first set measures capacitively the powder coal concentration present in the injection line.
Pulverized Coal Flow Measurement Systems. Our online Pulverized fuel flow measurement equipment, aptly named, PfFLO, is the most accurate and reliable method of measuring mass flow of coal in fuel piping systems in the world today. It is the only equipment to
ISO 9931 Pulverized Coal Flow Measurement System The ISO 9931 Measurement System is utilized to sample particulate flow carried within an air stream. By isokinetically extracting the sample, the particulate flow rate can be determined. The sampling probe, the SwivelSamplerTM, features four (4) nozzles that rotate around the center axis,
The flow velocity and concentration of the coal particles is measured using two ultrasonic probes at an angle of 45#176; to the flow direction. The results show that the aberration of the ultrasonic online measurements of the pulverized coal flow is less than 3 % compared to the coal flow set by the experimental boiler test platform.
#0183;#32;The pulverized coal flow measurement technique by load cell is a flow measurement technique in a indirect way, because there is no intrusive sensor in the pulverized coal pneumatic transportation pipeline. The flow measurement result is obtained by inference through the injection vessel weight decreasing rhythm along the time, in the last minute.
Standard Equipment. ISO 9931 Pulverized Coal Flow Measurement System. 4nozzle SwivelSampler probe. ASME PTC Pulverized Coal Flow Measurement System. Singlenozzle sampling probe. Dirty Air Flow Measurement System. Specially designed probe reduces pluggage during measurement in particle laden flows.
WhatsApp)