Course Details
- Course Code: OS-TT-DPMP-10D
- Mode of Delivery: Onsite
- Duration: 10 Days
- Price: On Request
Pumps Basics
Course Overview
The course includes a two hour induction session on the first day to welcome and orientate the candidate, familiarize them with the training centre, health and safety requirements and other important policies and procedures. This is then followed by the technical training for the remainder of the duration stated below and will consist of a combination of classroom and workshop sessions with various assessments throughout. Upon successful completion, the candidates will gain the knowledge and understanding that will go towards enhancing their existing skills to plan and carry out the basic maintenance tasks on pumps.
This training course is designed to upskill the engineering technicians working within their own trade discipline or as an appreciation of another, where knowledge and understanding may be required.
The entry requirements are a positive attitude to learning and clear motivation to study with evidence of an appropriate level of practical ability and skills.
Upon successful completion of the training course, candidates will be awarded a ‘Certificate of attendance’ from NTI and a Ministry of Manpower Accredited Certificate.
Other Details
General Discussion
- Pumps Safety/Hazards
Dynamic pumps:(Centrifugal pumps)
- Based on directions of flow -Radial flow, Axial flow and Mixed flow
- Based on suction type (Single type and double type)
- Based on Mechanical construction (Closed Type, Open Type and Semi Open or Vortex Type)
- Vertical Pumps- Line shaft pumps, submersible pumps and horizontally mounted axial mounted pumps
Displacement pumps:
- Reciprocating pumps – Piston, Plunger and Diaphragm type
- Rotary pumps-Single rotor and multi rotor.
Components and Accessories:
- Connecting rod Bearing
- Casing
- Impeller
- Mechanical seals
- Bearing
- Connecting rod
- Piston
- Plunger
- Wrist pins
- Pump valves
- Relief valve
- Pressure Gauge
- Ring
- Oil seal
- Types of maintenance:
- Corrective (Reactive)
- Preventative (Semi Proactive)
- Monitoring (Proactive & Predictive)
Impellers:
- Open impeller
- Semi open impeller
- Closed impeller
Couplings:
- Rigid coupling
- Flexible coupling
- Magnetic coupling
Seals:
- Pusher Type of Mechanical Seals
- Unbalanced Type of Mechanical Seals
- Conventional Mechanical Seals
- Non-pusher Type of Mechanical Seals
- Balanced Mechanical seals
- Cartridge Mechanical Seals
Bearings:
- Roller bearings
- Ball bearings
- Babbit bearings
- Sleeve bearings
Casing:
- Volute casing
- Vortex casing
- Casing with guide blade
Heads:
- Static head
- Friction head
- Pressure head
- Velocity head
Head losses:
- Major losses
- Minor losses
Cavitation and priming:
Net Positive Suction Head (NPSH):
- Net Positive Suction Head Required (NPSHr)
- Net Positive Suction Head Available (NPSHa)
Affinity laws:
- Constant impeller diameter
- Constant speed
- While changing both pump rotational speed and pump impeller diameter
- NPSH vs Pump speed
- Conversion from atmospheric pressure (ab)to mm of Hg
- Conversion from mm of Hg to atmospheric pressure (ab)
- Conversion of vacuum in mm of Hg to barometric column in mlc (metres of liquid column)
Practical Training and Assessment:
- Carry out Task Risk Assessment/Tool box talk
Practical Exercise:
- Disassemble the dynamic pumps (Centrifugal and vertical pumps) as per service guide.
- Identify and inspect the parts
- Replace the components if necessary
- Reassemble the Pumps.
- Check for Sufficient pressure, discharge, no losses while priming, no leakage in stuffing box, input power, vibration and overheat
Practical Training and Assessment:
- Carry out Task Risk Assessment/ Tool Box Talk
Day 9
Practical Training and Assessment:
- Carry out Task Risk Assessment/ Tool Box Talk
Practical Exercise:
- In cooperate the pump in the system to analyze its efficiency.
General Review of the Topics:
- Q & A
- Revision
- Feedback & Q/A session
- Complete final administration
Practical Exercise:
- Disassemble the Displacement (Reciprocating and gear pumps) as per service guide.
- Identify and inspect the parts
- Replace the components if necessary
- Reassemble the pumps as per service guide.
- Check for Sufficient pressure, discharge, no losses while priming, no leakage in seals and valves, input power, vibration and overheat
Practical Training and Assessment:
- Carry out Task Risk Assessment/ Tool Box Talk
Practical Exercise:
- In cooperate the pump in the system to analyze its efficiency.
General Review of the Topics:
- Q & A
- Revision
- Feedback & Q/A session
By the end of the module the candidate will be able to:
- Define pump.
- Identify the classification/types of pumps.
- Describe the working principles of dynamic and positive displacement pumps.
- Identify the components and the accessories used in pumps.
- Explain the use of impeller, coupling, seals, bearings and casing.
- Describe the terms discharge, Displacement, head, total head, head loss, cavitation, NPSH and priming.
- Derive the pump affinity laws and efficiency of pumps.
- Identify and locate the basic maintenance procedures.
- Demonstrate a clear understanding by identifying the most common faults.
- Describe the parameters to be monitored in service to assure performance.
- Explain the relevant start-up and shutdown procedures.
Generally, the work that the learners are undertaking on the short-courses can be quite intensive so it is important that they stay focused yet, at the same time, enjoy their experience in the centre. The centre will employ different pedagogical strategies to help achieve this and these may consist of the following although this list is not exhaustive:
1. Teacher Centred Methods
• Lecture
• Explanation
• Demonstration
• Questioning
2. Active Methods
• Discussion
• Group Work
• Quiz
• Simulations
3. Student Centred Methods
• Reading
• Private Study
• Homework
• Assignments/projects
• Reports
• Guided Discovery