Measurement and Testing


The Solution The EPC team then requested assistance to fi nd the proper fl ow meter technology solution from a local instrumentation manufacturers’ representative. The multi-line manufacturers’ rep fi rm then in turn contacted Fluid Components International (FCI), a leading manufacturer of thermal mass fl ow meters to evaluate the two air fl ow measurement applications and propose a solution.


Impressed with how well the FCI recommended MT100 Series Multipoint Thermal Flow Meters would perform in the two air measurement applications, the EPC fi rm then requested that the rep fi rm and FCI evaluate the fuel gas application to further take advantage of the multipoint gas sensing technology performance capabilities of the FCI MT100 Series Thermal Flow Meter. After further consultation and evaluation, the plant engineers, the EPC and the manufacturers’ rep engineers all generally agreed that the FCI multipoint thermal fl ow meters provided the best solution based on their accuracy, repeatability and virtually no maintenance required sensors.


In addition to providing the instrumentation hardware, the rep fi rm and manufacturer recommended to the EPC that they perform in-situ traverses of each duct at several boiler loadings (fl ow rates) to ensure the meters on the air inlet and combustion air ducts were measuring within an acceptable tolerance. This step was viewed by all as critical because the redundant meters would not all be installed in the ideal position for equal area measurement of the duct. This service also would ensure that the measurements were not being negatively infl uenced by any fi eld conditions that might have been unknown during the design phase of the project.


Being responsive to requests, taking the time to ask questions, providing STEP fi les for 3D modeling, and educating the design engineering team along the way all led to the fi nal decision by the refi nery and EPC teams to select the FCI MT100 Series Multipoint Thermal Flow Meters. In addition, the plant team noted that it previously had favorable experience with other FCI thermal meters in different applications when the proposed various fl ow measurement instrumentation alternatives to the original design.


FCI’s versatile MT100 Series Flow Meters (Figure 4) feature proven precision, repeatable and compact thermal dispersion fl ow sensor technology. They accurately monitor and report the fl ow rate and/or the totalised fl ow of air and fuel gases in order to achieve the precise combustion ratio necessary for optimum boiler performance that produces the steam for cracking and other high- heat refi nery and other petrochemical production processes.


MT100 Flow Meters combine state- of-the-art electronics technology with application-specifi c precision multipoint fl ow sensors in a rugged package designed for demanding operating environments. These meters provide temperature-compensated direct mass fl ow measurement of air and fuel gases. They come with one to eight fl ow rate sensing points. The sensors are inserted at multiple locations along the boiler burner piping assembly and their outputs are multiplexed and averaged to measure the air and gas fl ow rates and totalised fl ows.


The MT100 meter’s sensors also can be installed at multiple points in other air or gas process lines in a single plane or across a large mast for stack gas waste measurement. These rugged, long-life, nearly-zero maintenance instruments excel in dirty, hot or humid environments because there are no moving parts, orifi ces or glass windows to foul or clog.


15


Figure 4: FCI MT100 Series Multipoint Flow Meter


The rugged MT100 Multipoint Flow Meters with their temperature-compensated sensors measure air, natural gas, process gases or fl ue waste gasses operating at up to 454°C (850°F). They measure fl ow rates over a wide range from 0,07 to 305 NMPS (0.25 to 1000 SFPS) with 100:1 turndown and with excellent accuracy of ± 1.75% of reading, ± 0.5% of full scale.


In demanding industries, such as oil/gas refi neries, chemical, electric power generation and others, various sized diameter pipes and ducts present unique challenges to achieve successful fl ow meter installation and performance. Hot, moist and/or dirty gases along with a lack of pipe straight-run, distorted fl ow profi les, low fl ow rates and wide turndowns rates are common issues.


The MT100’s transmitter is both full-featured and rugged to meet these operating challenges. It’s all stainless steel enclosure is NEMA4X/IP66 rated to ensure long service life in outdoor installations. Its electronics comes with an extensive choice of output options to interface with virtually any DCS, PLC, SCADA, or recorder. High resolution, 16 bit, dual 4-20mA analog outputs with NAMUR 43 compliance, HART I/O, and Modbus RS485 RTU/ ASCII are all standard. Optionally available are Profi bus-PA or Foundation Fieldbus communications


The MT100’s large colour touch-screen LCD readout provides


Art Womack, Sr. Technical Staff, Fluid Components International (FCI) • 1755 La Costa Meadows Dr, San Marcos, CA 92078, U.S.A.


• Tel: 760-744-6950 • Email: efl ow@FluidComponents.com • Web: www.FluidComponents.com


comprehensive process information to users with both analog and digital displays of fl ow rate, temperature and totalised fl ow, a user time-base selectable strip-chart of fl ow rate and sensor status diagnostics. MT100 electronics also include a user programmable data logger to which fl ow rate, temperature and totalized fl ow as well as fault codes can be recorded on a removable, 8 GB microSD card.


All MT100 Meters have been independently tested and verifi ed to meet and comply with IEC safety directives for EMC and LVD, and carry the CE marking. Optionally available for process installations with hazardous, potentially explosive gases and/ or dust, MT100 meters can be ordered with ATEX or IECEx or FM/FMc agency approvals for Division II/Zone 2. The highly repeatable and reliable MT100 Series Multipoint Mass Flow Meter are also TÜV-certifi ed as AMS compliant with EN15267-3 with QAL1 and EN14181 (2015).


Conclusions Selecting the proper fl ow meter technology for refi nery process boilers can be challenging. Attention must be given to the details to ensure expectations are met and installation and start-up takes place without any last-minute rework. Collaboration with an experienced and knowledgeable instrument manufacturer is critical in the success of any project of this nature.


Bobby Toor, Territory Manager, EB Horsman • 11925 35 Avenue, Surrey, BC Canada V3S 3X1


• Tel: 778-545-9916 • Email: info@ebhorsman.com • Web: www.ebhorsman.com


New range of pyrometers with enhanced communication interfaces for advanced industrial temperature measurements


AMETEK Land has relaunched its highly acclaimed SPOT pyrometer range with enhanced features and benefi ts for a wide range of industrial applications. The new SPOT+ family offers a wide range of temperature measurements from 50 to 3500 °C (122 to 6332 °F) and a choice of different wavelengths for applications including metals, glass, cement and lime kilns and foundries. The range includes monochromatic and ratio pyrometers, fi bre optic heads and sophisticated algorithm pyrometers for complex materials such as aluminium and galvanized steel.


A wide range of new communications interfaces makes the SPOT+ ideal for Industrial Internet of Things (IIoT) factory automation applications in addition to traditional 4-20 mA signals. Ethernet/IP, REST API and Modbus TCP/IP are standard on SPOT+, and an integrated web server provides easy access for control and setup using a standard browser. Upgraded cybersecurity functions reduce the likelihood of unauthorized access to the instrument functions.


An integrated video camera provides a visible light process view alongside infrared temperature measurement, which allows sighting to be carried out safely and easily. As the video images are available via the webserver and AMETEK Land’s IMAGEPro software, alignment can be checked remotely and images logged for quality purposes.


The SPOT+ can be used in the harshest of environmental conditions, and in hazardous area zones 1, 2, 21 and 22 when mounted in LAND’s high-specifi cation EXSH enclosure. With response times down to 1ms, SPOT+ pyrometers are also suitable for fast-moving processes.


AMETEK Land’s SPOT pyrometers are built on extensive research and development and have always been at the leading edge of measurement technology. The new SPOT+ enhancements offer improved connectivity for easy integration with control systems, and the confi dence that data transmission is secure. Upgraded electronic and electromechanical components ensure highly reliable and accurate operations, all backed by AMETEK Land’s 36-month warranty and supported by a range of extensive accessories for installations in the most demanding applications.


Dr Fiona Turner, Head of Product Management at AMETEK Land said: “The principles of infra-red temperature measurement don’t change, but over the last 10 years, there have been signifi cant advances in automation and industrial ethernet. Customer focus on product quality and process effi ciency has driven an interest in big data – and a risk of cyberattacks.


“I’m excited about the potential from using SPOT+ instruments for background temperature and emissivity correction of thermal imaging systems in IMAGEPro software. SPOT+ pyrometers provide more than just temperature measurements – emissivity outputs are key indicators of product surface quality, and the facility to log visible light process images alongside infra-red temperature measurement provides new insights into process conditions and product quality.”


For More Info, email: email:


For More Info, email: 61086pr@reply-direct.com WWW.PETRO-ONLINE.COM


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