How a pneumatic and hydraulic drawing should be laid out

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Reference no: EM131240713

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Learning outcome

LO1 Be able to read and interpret pneumatic and hydraulic fluid power diagrams

1.1 recognise and describe given fluid power symbols that conform to the latest ISO 1219 standards or their national/international equivalent

1.2 From a given system diagram, read, interpret and explainthe operation of either a pneumatic or hydraulic multi-actuator sequential system that uses a minimum of fouractuators

1.3 produce a suitable circuit design drawing for either a pneumatic or hydraulic reversible rotary actuation system that includes speed control in both directions

LO2 Understand the construction, function and operation of pneumatic and hydraulic components, equipment and plant

Identify thefeatures, describe the function and explain the operation of given items of pneumatic and hydraulic equipment. analyse, compare and contrast the performance characteristics for two given items of pneumatic and two given items of hydraulic equipment

Task 1:-

STANDARDS

Compile a list of the current fluid power standards (ISO and others) used in the design, construction, commissioning and operation for fluid power systems. For each state their purpose and application.

Using current standards study and explain the following statements:-

1. How a Pneumatic and Hydraulic drawing should be laid out.

2. Identification of symbols and numbering of symbols.

3. What are the ISO standards for drawing size and the information that should be contained on the drawing.

Answer the following questions (use suitable illustrations if appropriate).

1. How do you represent the junction of two lines.

2. How would pilot lines be represented.

3. How would pressure lines be represented.

As a marine engineer you have been given a range of Pneumatic & Hydraulic circuit diagrams, you have been tasked to identify all symbols and explain the operation of the circuit, use the current standards (ISO 1219).

Fig 1 - Speed control system.

1352_Figure.jpg

Fig 2- Electro Pneumatic Double Bulkhead Lock

675_Figure1.jpg

Task 2

For the given system diagrams, read, interpret and explain the operation of both hydraulic multi-actuator sequential system that that are used on a vessel.

Fig 3- Hydraulic Rudder System

565_Figure2.jpg

Fig 4- Hydraulic ferry visor lock

Electro Hydraulic Sequence Circuit - ferry visor lock

1123_Figure3.jpg

Task 3

As an engineer on board ship you have been tasked produce a suitable circuit design and simulation for either a pneumatic or hydraulic reversible rotary actuation system that includes speed control in both directions, which operates the locking mechanism for the rudder position.

Task 4:

Identify the features and describe the function and explain the operation of given items of pneumatic and hydraulic equipment, you should use technical data to validate your answer.

(A) Pneumatic equipment

Pneumatic Cylinder with cushioning and proximity sensors.

Solenoid operated 5 port 3 position NC Control valve.
Desiccant dryer
Shuttle valve
Sequence valve

(B) Hydraulic equipment
Hydraulic cylinder.
Gear pump
Pressure relief valve
Solenoid operated 4 Port 2 position spool valve
Pressure reducing valve.

Task 5:-

Analyse compare and contrast the performance characteristics for two given items of pneumatic and two given items of hydraulic equipment.

(A) Pneumatic Screw compressor - Comp air L series Model L 15.

(B) Pneumatic Centrifugal compressor -Atlas copco ZH 7000

(C) Hydraulic Radial piston pump -Bosch radial piston pump Fixed displacement Model EO55

(D) Hydraulic gear pump-Bosch fixed displacement gear pump model RE 10213

Reference no: EM131240713

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Reviews

len1240713

10/13/2016 12:57:29 AM

Use critical reflection to evaluate own work and justify valid conclusions Identify and apply strategies to find appropriate solutions Effective judgements have been made. An effective approach to study and research has been applied.

len1240713

10/13/2016 12:55:48 AM

Identify the features, describe the function and explain the operation of given items of pneumatic and hydraulic equipment Analyse, compare and contrast the performance characteristics for two given items of pneumatic and two given items of hydraulic equipment

len1240713

10/13/2016 12:55:39 AM

To achieve the criteria the evidence must show that the student is able to: recognise and describe given fluid power symbols that conform to the latest ISO 1219 standards or their national/international equivalent from a given system diagram, read, interpret and explain the operation of either a pneumatic or hydraulic multi-actuator sequential system that uses a minimum of four actuators produce a suitable circuit design drawing for either a pneumatic or hydraulic reversible rotary actuation system that includes speed control in both directions

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