3
ITEM
A-03-343
DATED
NOVEMBER 2012
SUPERCEDES
MARCH 2011
Transporting the plate heat exchanger:
Before transporting the plate heat
exchanger, always ensure that the hoisting
gear is of sufficient dimensions and
securely fixed. Never step underneath
suspended loads.
Hazardous flow media: Hazardous flow
media present dangers of chemical burns,
burning or poisoning. Always wear suitable
protective clothing when working on a heat
exchanger that has hazardous flow media.
OPERATING INSTRUCTIONS:
These operating instructions are for
operators of heat exchangers and for
all persons who are responsible for the setup, operation,
maintenance and repair of the device. These operating
instructions are generally applicable to all gasketed plate heat
exchangers supplied by Aurora.
USER NOTES, DRAWINGS AND FIGURES. The drawings
in these operating instructions show typical examples. For
reasons of clarity, some drawings have been greatly simplified.
The actual details depend on the individually delivered heat
exchanger. You will find diagrams and dimensions of the heat
exchanger in the technical documentation supplied.
Note for the operator of the heat exchanger. The operator of
the plate heat exchanger is the person who is in charge of the
operation of the device.
Note for the technician who sets up the heat exchanger. These
operating instructions contain no details about special tools
that are needed for the setting up and operating the plate heat
exchanger.
SAFETY NOTES IN THE TEXT. In these operating
instructions, the following are used in order to draw your
attention to dangers when handling the heat exchanger or
provide you with information about handling the heat
exchanger:
CAUTION. This means danger to the life and health of persons.
The following text explains the type of danger and its effects
and provides instructions for averting the danger. Not adhering
to the instructions can have health effects up to and including
death.
DANGER. This symbol means danger for the heat
exchanger, for parts, or for its environment. The following
text explains the type of danger and its effects and provides
instructions for averting the danger. Not adhering to the
instructions can cause substantial damage to the plate heat
exchanger.
NOTE. This appears above paragraphs that provide you with
useful or important notes for the correct handling of the plate
heat exchanger. This information helps you to avoid problems
and makes it easier to handle the plate heat exchanger.
MANAGER’S OBLIGATIONS:
Danger of injury!
In the case of hazardous media (acids or similar media), high
pressures and high/low temperatures in the heat exchanger,
there is a danger of injury during maintenance or in the case of
leakages.
1. In this case you should use a protective shroud.
2. This shroud should be removed only when the heat
exchanger reaches room pressure and room temperature, or
is empty.
As manager of the plate heat exchanger you must ensure that
each operator who is responsible for the setup, operation,
maintenance or repair of the heat exchanger has read and
understood, from beginning to end, the parts of the operating
instructions important for the job.
The heat exchanger is built according to state-of-the-art
technology and is reliable in service. In spite of that, the heat
exchanger may present dangers or may be damaged if you do
not observe the following instructions:
1. These operating instructions must always be accessible to
the operators entrusted to work on the heat exchanger.
2. Only operators who are instructed in handling the
heat exchanger and the basic work safety and accident
prevention regulations should work on the heat exchanger.
For safety reasons it should be forbidden for other persons
to be in the area of the heat exchanger.
3. The safety knowledge of the operators should be checked
regularly.
4. As manager you should ensure that:
a. The heat exchanger remains in functional order.
b. No premature wear of specific parts of the heat exchanger
results from unfavorable ambient conditions.
c. Unfavorable ambient conditions for the gaskets might
include:
• Aggressive gases and/or aggressive aerosols in the
surrounding air.
• Effects of UV radiation (e.g. sunlight).
• Extreme ambient temperatures.
d. Unfavorable ambient conditions for the metal
components might include:
• Aggressive gases and/or aggressive aerosols in the
surrounding air.
• Humidity.
e. All maintenance/inspections are carried out in regular
intervals.
f. No changes or modifications are carried out on the plate
heat exchanger without being checked by an appropriate
party to be sure that the modifications will not result in
unsafe operation.
g. All appropriate laws and regulations, even if they are not
explicitly mentioned here, are observed.
FUNCTIONAL DESCRIPTION:
A series of contoured plates with transfer ports forms a pack of
flow channels in the plate heat exchanger. The heat exchange
media flow through these flow channels in alternate channels.
CAUTION
