Objective : 

- Understand the performance limitations of centrifugal pumps.

- Identify the causes of malfunctions.

- Define conditions for increased reliability.

 

Target group : 

- This course is aimed at operators, foremen, technicians or engineers in operations, maintenance or process departments.

- Prerequisites: Introductory course in rotating machines or equivalent experience.

- 8 to 10 people maximum per session.

 

Contents :

09:00 - 10:30 
OPERATION 

- Characteristic curves and performance of a centrifugal pump: flow, power and efficiency 

- Operating limits: cavitation, zero flow

 

10:30 - 10:45 
Break

 

10:45 - 12:15 
OPERATION 

- Starting a centrifugal pump

- Principles of flow control :

    o System pressure drop

    o Flow control: control valve, by-pass, variable speed

- Operating point and operating limits:

    o Minimum flow, cavitation, vibration.

    o Best efficiency point versus flow

- Operation of 2 pumps in parallel and in series:

    o Advantages, disadvantages

    o Performance curves

 

12:15 - 13:15 
Lunch

 

13:15 - 15:15 
TROUBLESHOOTING

- On-site performance checks: hydraulic and electrical balances.

- Causes of efficiency losses : 

    o Abnormal load losses : 

           Suction filter clogging

           Suction pressure drop

           Foreign bodies

    o Abrasion, erosion, cavitation, wear and tear 

- Behavioral anomalies :

    o Abnormal vibration

    o Abnormal heating of bearings

    o Sealing leaks

    o Pump bypass: role of the non-return valve

- Excessive energy consumption: causes and remedies

 

15:15 - 15:45 
Break

 

15:45 - 17:00 
INSTALLATION 

General principles of pump assembly

- Common base: pump, coupling / drive machine.

- Pipe coupling: principle and tolerances. 

- Bends and flow stabilizers.

- Position of suction pipes.

 

Implementation / working method :

Interactive, one-day, face-to-face course. Powerpoint support will be shared at the beginning of the course in paper and digital formats.

A questionnaire will be sent to trainees prior to the course in order to adapt the course content to participants' expectations as far as possible.

A course evaluation questionnaire will be distributed to participants at the end of the course.

 

Course language and materials:
French