CHART TRIFECTA 2K, Руководство по обслуживанию

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Trifecta 2K 2
S
AFETY
As with any cryogenic system, it should be observed that any non-insulated piping can get
extremely cold and should not be touched by exposed skin. If the system requires maintenance,
it should be shutdown and allowed to warm-up. If maintenance is to be done on the system,
such as changing valve seats, it is extremely important that the pressure be relieved from the
system through the vent valves. The five transmitters can monitor the system pressures and
liquid levels. When doing maintenance on the system, it is recommended that the manual
isolation valves to the bulk tank be closed.
Safety Summary
Strict compliance with proper safety and handling practices is necessary when using a
cryogenic system. We recommend that all our customers re-emphasize safety and safe handling
practices to all their employees and customers. While every possible safety feature has been
designed into the unit and safe operations are anticipated, it is essential that the user of the
cryogenic system carefully read to fully understand all WARNINGS and CAUTION notes listed
in this safety summary and enumerated below. Also read the information provided in the Safety
Bulletin for Oxygen and Inert Gases following this Safety Summary. Periodic review of the
Safety Summary is recommended.
In an oxygen-enriched atmosphere, flammable items burn vigorously and could
explode. Excess accumulation of oxygen creates an oxygen-enriched atmosphere (defined by
the Compressed Gas Association as an oxygen concentration above 23%). Certain items
considered non-combustible in air might burn rapidly in such an environment. Keep all organic
materials and other flammable substances away from possible contact with oxygen; particularly
oil, grease, kerosene, cloth, wood, paint, tar, coal, dust, and dirt which may contain oil or
grease. Do not permit smoking or open flame in any area where oxygen is stored, handled, or
used. Failure to comply with this warning may result in serious personal injury.
Nitrogen and argon vapors in air may dilute the concentration of oxygen necessary to
support or sustain life. Exposure to such an oxygen deficient atmosphere can lead to
unconsciousness and serious injury, including death.
Before removing any parts or loosening fittings, empty the cryogenic container of
liquid contents and release any vapor pressure in a safe manner. External valves and fittings
can become extremely cold and may cause painful burns to personnel unless properly protected.
Personnel must wear protective gloves and eye protection whenever removing parts or
loosening fittings. Failure to do so may result in personal injury due to the extreme cold and
pressure in the tank.
Accidental contact of liquid gases with skin or eyes may cause a freezing injury similar
to a burn. Handle liquid so that it will not splash or spill. Protect your eyes and cover skin
where the possibility of contact with liquid, cold pipes and equipment, or cold gas exists. Safety
goggles or a face shield should be worn if liquid ejection or splashing may occur or cold gas
may issue forcefully from equipment. Clean, insulated gloves that can be easily removed and
long sleeves are recommended for arm protection. Cuffless trousers should be worn over the
shoes to shed spilled liquid.