Alfa Laval Contherm 6X11, Инструкция по эксплуатации

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7 Operations
7.10 Shutting Down the Contherm™
Shutting down the Contherm
™
at the end of a production run is a simple process. When the production run is complete, chase
the product through the Contherm
™
system with rinse water. NOTE: Some product applications are not compatible with water
in which case it is up to the customer to determine what type of fluid should be used to clear the system of product. As there is
very little mixing of water and product in the Contherm
™
, product loss is minimal. When the product has been rinsed/cleared
from all lines, shut off the appropriate media source (refrigerant, cooling or heating media) and allow the system to come to a
moderate temperature range where freezing or burning of the fluid being used to void the system of product.
CAUTION DO NOT use pressurized air to clear your
Contherm
™
system of product as this will damage
the Contherm
™
and may produce a dangerous
high-pressure situation will damage the Contherm,
and may cause injury or death.
At this point, the Contherm
™
may be cleaned in accordance with the information provided in the following section, Section 7.11
Cleaning the Contherm
™
. After you have completed the cleaning process, you can shut off the Contherms
™
drive motors.
7.11 Cleaning the Contherm™
The Contherm
™
is designed to be cleaned in place (CIP). The selection of the appropriate cleaning solutions and the proper
time/temperature relationship is critical to the integrity of the equipment. Specific product soils can cause variations in the
cleaning chemicals and procedure selections.
For additional recommendations on cleaning and sanitizing your Contherm
™
, contact your local chemical supplier representative.
To protect your equipment and your warranty, clean the Contherm
™
in accordance with the following guidelines and the
recommended cleaning program provided in Table 7-12.
7.11.1 Recommended Cleaning Guidelines
The following list provides recommended guidelines to follow when cleaning your Contherm
™
equipment.
1. Do not use acid solutions lower than 3.5 pH or at temperatures higher than 68°F (20°C) on materials other than stainless
steel or Duplex cylinders.
2. Do not use acid cleaners on chromed cylinders.
3. Do not use nitric or sulfuric acid cleaning compounds on nickel cylinders. Only use the phosphoric acid or citric acid in
the concentrations indicated in Table 7-12.
4. Do not heat cleaning solutions in the Contherm
™
.
5. Do not air blow cleaning solutions from the Contherm
™
. Cleaners should be rinsed from the equipment.
CAUTION If you use cleaning agents that are not recommended
and approved by Alfa Laval Inc. or if cleaning agents
are used improperly, you may void your equipment
warranty.
Table 7-12 identifies the recommended steps in the cleaning program that are suitable for your Contherm
™
. If you have a
question about any of the steps in the cleaning program, contact your local Alfa Laval Inc., local chemical supplier representative.
The following cleaning program steps are identified in Table 7-12:
1. Water Flush.
2. Alkaline Cleaner (Chlorine Additive).
3. Water Rinse
4. Acid Cleaner (Phosphoric).
5. Water Rinse.
6. Sanitize.
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