INTRODUCTION - 8 - CLEANING_Cleaning Flow Dynamics

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* 1. Enter your first and last name

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* 2. Select all that apply. A cleaning failure can result in a failure in any of the following expected cleaning processes:

Chemical cleaning action

Thermal cleaning action

Physical cleaning action

Electro-mechanical cleaning action

Magnetic cleaning action

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* 3. Why are flow dynamics important?

If cleaning solutions are not adequately distributed to all parts of the milking system, the cleaning process will take longer than necessary.

If cleaning solutions move through the milking system at a velocity that is too high, the cleaning process is wasting energy.

If cleaning solutions are not adequately distributed to all parts of the milking system, there will be a cleaning failure.

If cleaning solutions move through the milking system at a velocity that is too low, the cleaning process will take longer than necessary.

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* 4. If milk quality tests indicate a problem in the milking system yet all cleaning cycles were observed and properly executed, observation of clean-in-place (CIP) flow dynamics should be performed.

True

False

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* 5. "Observation of clean-in-place (CIP) flow dynamics" can be defined as:

An initial assessment of the dynamics of the jetters

An initial assessment of the water and airflow dynamics of a milking CIP system

An initial assessment of the speed of the cleaning cycles

An initial assessment of the overall parlor management efficiency

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* 6. The first step in assessing flow dynamics is to __________.

Understand and create a sketch of the intended flow circuit

Perform a SPC on the bulk tank

Test the temperature of the hot water being used in the cleaning system

Test the cows for mastitis

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* 7. Select all that apply. A sketch used to understand the intended flow circuit of the CIP system should include:

Diameter and length of all lines.

Location of critical components such as receiver(s), wash sink(s), air injector(s), valve(s), etc.

Location of any manual or automatic valves that may be operated before or during the wash cycle, whether air is being drawn in the wash sink, and the timing of the air injector.

Power requirements of all electrical components

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* 8. Select all that apply. An air injector misplacement or malfunction can produce the following symptoms:

System "traps out" (ball valve in sanitary trap shuts off system vacuum in one or more wash cycles.

Air is drawn into the system at wash sink during detergent cycle – uncontrolled point of air injection.

Milk pump never shuts off during cleaning.

Large volume of water drains from the distribution tank when vacuum pump shuts off after cleaning.

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* 9. Flow problems rarely result from improper air injector location and/or timing cycles.

True

False

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* 10. If initial tests indicate that flow problems exist, the following action should be taken:

Some draino should be run through the cleaning system twice before continuing.

A qualified service person with appropriate test equipment and training should be consulted for a complete flow analysis.

A visual assessment of the air injector should be done followed by manual adjustment of its timing.

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* 11. Changes to the clean-in-place (CIP) system, such as altering air injector timing or varying any hardware settings, should NOT bedone without proper testing equipment so that the changes can be adequatelyaddressed.

True

False

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* 12. Select all that apply. A complete clean-in-place (CIP) flow analysis should be conducted whenever _________.

Every two weeks.

A change is made to an existing system.

A new system is installed.

The recommended CIP procedures are being followed, but milk quality tests indicate that a cleaning problem exists.

Every six weeks.