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WHAT OUR SATISFIED CUSTOMERS ARE SAYING |
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Case
Study |
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November, 2010 |
Honeywell ECC
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Jiangsu Leasty
Chemical Increase Monitoring Capability and Safety
with Honeywell IRIS Watchdogtm Industrial
Flame Detect System |
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Bulletin
No. : Case Study-EA-2010
Product: IRIS Watachdog lll Remote Flame Detect System
Project: Jiangsu Leasty Chemical Co., Ltd.
Date: 11/18/2010 |
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On Site
Picture: Remote Flare Flame Monitoring
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Benefits |
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System
installation and commissioning was finished on Oct.
2009.
After more than 1 year service, Watchdog lll system is
proved robust and accurate.
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80%
savings in time for flame detect system installation
and commissioning.
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60%
savings in maintenance time for flame detect system.
Also Increase people safety by reducing time to
climb flare tip.
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40%
light off risk reduction by continuously monitoring
flame status.
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The
electronics of Watchdog lll has no moving parts,
ensure continuous operation.
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Customer |
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Jiangsu Leasty Chemical Co., Ltd. is a large-scale
petro-chemical enterprise subordinate to Jiangsu
Shuangliang Group.
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The
first phase project of the company, covering an area
of 130,000 m2, was started in February, 2005 and
successfully put into operation in May, 2006.
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At
present, the company possesses an annual productive
capacity of 210,000 ton styrene and 50,000 ton
aniline.
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Challenge |
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The
flare is the main and most critical part of an
emergency process relief system
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The
flame must be kept burning to safely dispose of
waste gases from a process and to oxidize
them
into less harmful substances.
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Flame status output is necessary for automatic
ignition system in case of flame light off.
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The
height of flare stack in Leasty Chemical is over 80
meters.
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High environmental temperature around the flame and
limited install space on the top of flare stack.
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Leasty Chemical Co. needed a very effective solution
for monitoring flame status in flare stack.
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Easy maintenance feature is also required by Leasty
Chemical customers.
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Solution |
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Honeywell provided Leasty Chemical IRIS Watchdog lll
system, which is especially designed for remote flare
system flame detect.
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The
IRIS Watchdog electro-optically monitors pilot and
flare stack activity using an ultraviolet sensor.
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The
viewing head was mounted on cable tray near to
ground, about 150 meters from the flare stack tip.
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The
signal processor was mounted near the viewing head
in an Ex proof cabinet.
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4-20mA and On-off signal continuously passed from
Watchdog lll signal process to automatic ignition
system.
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Watchdog lll also provided self check information
for maintenance personnel.
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Customer Voice |
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“By
adopting Honeywell’s Watchdog lll, we found that
flare flame monitoring is not a problem.”
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“The
system is not only had saved us cable wirings, it
has made installations very easy, stable and
robust.”
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“Now
we can get all flame related signals to be
monitored. I’m very impressive for its easy use
feature.”
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Information: |
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Honeywell Environmental
and Combustion
35 Floor, Tower A, City
Center,
No. 100, Zunyi Rd.,
Changning District
Shanghai, China
Tel: +86 21 2219 6888
Zip code: 200051
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Honeywell International (www.honeywell.com)
is a Fortune 100 diversified technology and
manufacturing leader, serving customers worldwide with
aerospace products and services; control technologies
for buildings, homes and industry; automotive products;
turbochargers; and specialty materials. Based in Morris
Township, N.J., Honeywell’s shares are traded on the New
York, London, and Chicago Stock Exchanges. For more
news and information on Honeywell, please visit
www.honeywellnow.com. |
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© Copyright 2010. All
rights reserved.
This is produced for internal use only and not for
distribution outside the Company. |
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Manchester
Street Generating Station.
Providence, RI |
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Combustion Turbine Flame Monitoring System Replacement
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Manchester Street Station is a 495-megawatt electric
generating plant located in Providence, RI. Built in 1903 to power the
Providence electric trolley car system, the plant has undergone many expansions
and modernizations over the years. Between 1992 and 1995, a landmark re-powering
project transformed the plant into one of the cleanest and most efficient
fossil-fueled generating facilities in New England. The upgrade included the
addition of three Siemens model V84.2 combustion turbines. |
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Since the completion of the re-powering project in 1995, a
program of continuous plant improvement has been in place. Some of the goals of
this initiative are to increase efficiency and reliability, minimize
environmental impact, and enhance workplace safety.
One of the items identified, as a candidate for improvement
was the combustion turbine flame monitoring system. The system supplied by the
turbine manufacturer was a European product based on a now dated technology.
Over time, system reliability had declined and it had become labor intensive and
expensive to maintain. Replacement parts were costly and delivery times
extended.
The scope of the Flame Monitoring System Replacement Project
was to remove the existing flame scanners, signal processors and the
interconnect cabling running from the scanners to the junction boxes on each
combustion chamber. These components were replaced with the following modern
equipment manufactured in the United States by IRIS Systems, Inc.:
The IRIS Systems components were chosen based on cost,
performance, ease of installation, and favorable recommendations. The viewing
heads were direct replacements for the existing flame scanners. The signal
processors and new card frame were installed in the turbine control cabinet,
below the existing devices, while the turbine was still in operation. All field
wiring between the combustion chamber junction boxes and the control cabinet was
compatible and could be re-used, eliminating the need to replace long cable
runs. By pre-installing the signal processors and pre-fabricating the new cables
between the viewing heads and combustion chamber junction boxes, the system
replacement could be easily accomplished during a combustion turbine minor
inspection outage.
Plant maintenance staff activities associated with this
project included removing and replacing the viewing heads, removing and
replacing cabling running between the viewing heads and the combustion chamber
junction boxes, mounting the new card frame in the turbine control cabinet, and
making the new connections between the card frame and the cabinet terminations.
Engineering, Start-up and commissioning of the replacement
system progressed smoothly with the assistance of an IRIS Systems field service
engineer. The flame monitoring system has functioned satisfactorily and has met
all project expectations. Subsequent to the installation on the first combustion
turbine, the flame monitoring systems on the remaining turbines were also
replaced.
Rich Desmond
Plant Controls Engineer
Manchester Street Station
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University of
Alberta
Edmonton, Canada |
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| We were impressed with the
discrimination characteristics of the Iris system, which never failed to
detect the on-off status of boiler burners. Safety and reliability are
paramount to our operation... Iris has never let us down. The products and
service have always been "top Notch".
Ray Kjenner
Utility Services Manager
University of Alberta, Edmonton
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Parsons Energy &
Chemicals
Houston, Texas |
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| For any job requiring flame
proving, the IRIS would head my list and, if the application involved NOx
Reduction, IRIS would be the only scanner on the list. The equipment
performed as advertised, deliveries were on schedule, and assistance was
only a phone call away.
Larry Bachus
Technical Specialist
Parsons Energy & Chemicals
Houston, Texas |
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Jack Brown
Chief Power Engineer |
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We have been using Iris Flame
Detectors in our Oil Refinery for ten years. They are in service on
several different applications including power boilers, waste heat
boilers, claus sulfur plant reaction furnace, and processor heaters.
The Iris Flame Detectors have been easily the most reliable Flame
Detection devices we have used. The service provided by the Iris staff has
been excellent. Any questions or concerns are dealt with immediately by
knowledgeable technicians.Jack Brown
Chief Power Engineer |
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