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in order to complete the intended study.However,more appropriate solutions were
desired for long-term production. ACIP consultant was hired to redesign and
commission the modified system prior to the next production phase.
The next production phase was for process validation for adifferent portion
of the process. It involved 10 different CIP circuits. Iwill refer to this as Project B.
The remaining production process steps and circuits would be validated later.
Cleaning validation activities were performed for both Projects A and B. For
Project B, Iwas involved with the preparation of software functional requirements,
but was not involved for the majority of the commissioning. Iwas consulted
to help troubleshoot issues with the system after the consultant completed its
commissioning.
Skid and Circuit Schematic Design
Atypical CIP circuit is shown in Figure 1. Aschematic of aCIP skid is shown in
Figure 2. Following is the description of atypical CIP operation. (This is the way the
systems for Project Bwork):
1. ACIP circuit consists of the CIP skid, the process vessel and process piping, and
the CIP supply and return piping.
2. The CIP system and process systems are controlled by the same distributed
control system (DCS).
3. There are anumber of transfer panels and valve clusters used throughout the
distribution system.
CIP supply
valve manifold
CIP supply
pump
Chemicals
Fresh water
CIP tank
Tank Atop
valve manifold
FIGURE 1 Atypical CIP circuit.
CIP return
valve manifold
Once-through
rinse byepass
Process
inlet
Tank Abottom
valve manifold
Tank Btop
valve manifold
Spray
ball
Tank A Tank B
Sample
flush
Tank Atotank B
Transfer line
Norton