Features: - Tanker Operator

TECHNOLOGY - GAS DETECTION
Incorporating the latest miniaturised XXS
generation of high performance sensors, the
X-am 5000 can be fitted with up to four
sensors to detect as many as five gases at
once. For example, by using a catalytic Exsensor
together with two electrochemical
sensors and a combination, double sensor for
CO and H2S, it will provide simultaneous
measurement of explosive gases and vapours
as well as O 2 and other toxic gases.
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As well as a wide range of sensors to
protect against CO, H2S, CO2, Cl2, HCN,
NH3, NO2, PH3 and SO2, Draeger oxygen
sensors offer a five-year expected lifetime,
and the catalytic Ex sensor, calibrated to
methane, offers exceptional longevity, the
company said.
Providing improved safety when facing
unknown hazards, this Ex sensor responds
quickly to explosive gases (additional
Inert gas generator from Coldharbour
UK based Coldharbour Marine, a
division of Transvac Systems
has added a new type of inert
gas generator (IGG) to its
existing range of products.
The new, patented third generation IGG
system (3gIGG) is claimed to reduce the
risk of explosions in cargo tanks and for
other applications, such as ballast water
treatment.
Howard Towers, Coldharbour marine
director said; "Our new third generation Sea
Guardian IGG represents the result of
several years intense research and
development effort by the team here in the
UK, and that in turn was based on our
combined in-house experience of more than
50 years in this important sector."
The new technology incorporates several
significant advances over traditional IGG
systems, in both burner and quench
scrubber design, resulting in a safer, cleaner,
lower maintenance, simpler to operate unit,
the company said.
It is fitted with a specially developed
Venturi type burner, using axial flow staged
fuel and low NOx atomisation and has been
developed from the power generation
sector, where the basic technology has a
well established history of stable, reliable
operation over long periods.
Coldharbour said that the patented
quench scrubber design is a particular
highlight of the system, offering an end to
Venturi/scrubbing towers, spray nozzles and
demister pads.
As a result, the units are more compact
than earlier technologies and this will
facilitate the retrofit market, as well as
newbuildings in the future.
calibrations are available) and offers a
high level of sensitivity to combustible
organic vapours. As a result, it ensures
dependable warnings in the event of
explosive hazards.
A variety of options are also available such
as an external pump with flexible hose for use
in pre-entry/confined space measurement
applications and the Draeger E-Cal automatic
test and calibration station.
Howard Towers.
Long term reliability and benchmark
performance testing was completed in late
2007 and the units are currently in the final
stages of receiving appropriate approvals
and certification.
Towers continued; "Our aims were to
design and build the best IGG for the
current and all foreseeable future market
requirements, capable of operating at 0.5%
or lower residual O2 levels while
maintaining zero soot output. We also
wanted to address the typical operating and
maintenance issues associated with the
earlier IGG technologies."
Coldharbour Marine is looking to expand
its distribution network for the technology
worldwide. It has already received
indications of interest from Europe, the US
and Japan and expects to deliver the first
customer units in 2009. �
TO
TANKEROperator � August/September 2008