DOC No. : 29040-PI-UFR-0018
TRAINING MANUAL- PIPING
Uhde India Limited
GENERAL REQUIREMENT OF EQUIPMENT LAYOUT/ UNIT PLOT PLAN
Rev.
: R0
Page
: 1
CONTENTS Page 0.0
Cover Sheet
1
1.0
Basic Considerations
2
2.0
Drawing Scale
2
3.0
Development of Equipment Layout
2
4.0
Input Information
2-3
5.0
Contents
4
6.0
General Points
4-5
Applicable Revision: Prepared:
Checked:
Approved:
Date: First Edition: R0 Prepared: DNL
Date:
Date:
Checked: AKB
Approved: RUD
Date: File Name: C- 18
Date: Server:
PUNE: KUMUS 207
Directory: PUNE: Refer \ Pi \ Training Manual
Date: VKO: KUMUS 209
VKO: Refer \ Training Manual
TRAINING MANUAL- PIPING
Uhde India Limited
1.0
GENERAL REQUIREMENT OF EQUIPMENT LAYOUT/ UNIT PLOT PLAN
DOC No. : 29040-PI-UFR-0018 Rev.
: R0
Page
: 2
BASIC CONSIDERATIONS: The relative arrangement of the various equipment and machinery laid in the particular unit / area / building is indicated. It should meet the following requirements:
2.0
1.1
Process constraints like minimum elevations, distances, slopes, etc.
1.2
Operational accessibility.
1.3
Maintenance feasibility like monorail, fork-lift /mobile crane approach, working area, etc.
1.4
Ease of erection.
1.5
Industrial safety.
1.6
Statutory regulations e.g. Petroleum Act/ Gas Cylinder Rules, Static & Mobile Pressure Vessel Rules and Factory Inspectorate Rules.
1.7
Aesthetics
1.8
Economy, e.g. shortest piping, smaller floor space, etc.
DRAWING SCALE: The scale can be 1:50 on any size of sheet, depending upon the area coverage. As far as possible a nearby road/pipe rack should be shown to make the approach/obstructions clear. If most of the equipment are of large size then scale can be reduced to 1:100, 1:200 or 1:250 e.g. in case of big tank farms, ammonia storage tanks, etc.
3.0
DEVELOPMENT OF EQUIPMENT LAYOUT: This drawing is started when Process flow sheets and major equipment dimensions (e.g. equipment list) are available. Piping Engineer should first develop a one-plane elevation of all equipment to scale and relatively locate to fulfil process requirements. He should keep good margins for nozzle lengths, bends, valves, slopes and distances between equipment, etc. while locating the equipment. He must as well think of structural/concrete beam depths, monorails, pipe-ways, cable trays, lighting, etc. while deciding the floor elevation. This one-plane elevation view should be discussed internally and then with PE group who will check relative locations & elevations of equipment. Routing of major & critical process lines should also be discussed at this stage. After deciding floor elevations and number of floors, work can start on preliminary arrangement drawings which should show each floor plan as well as elevation views at different sections.
4.0
INPUT INFORMATION: For proceeding to preliminary arrangement plans information is collected from various groups, as follows Process: •
Type of building/structure
•
Surface protection requirement.
TRAINING MANUAL- PIPING
Uhde India Limited
GENERAL REQUIREMENT OF EQUIPMENT LAYOUT/ UNIT PLOT PLAN
•
Size and type of moving equipment.
•
Approach & operating space requirements.
•
Monorails/EOT/HOT requirement for maintenance.
•
Type of Hazardous and Safety requirements
DOC No. : 29040-PI-UFR-0018 Rev.
: R0
Page
: 3
Instrumentation: •
Space requirement for instrument cables.
•
Space & location requirements for Analyser cabinets/rooms, etc.
Electrical: •
Space requirement for cable racks & trenches.
•
Space for local Push Button Boards
Civil: •
Factory Act requirements.
•
Economic consideration with regard to type of structure, column spacing & tie beam, etc. meeting process requirements.
•
Size and depth of Building Column Footings
•
Size and slope of Floor Drains
Erection •
Erection requirements such as bolted joints in the structure.
•
Erection openings in floors.
•
Openings in walls or door sizes
•
Extra space for derrick/crane, etc.
Client Preference for type of structure, maintenance facilities, like cranes, monorails, operational amenities like office, toilet block, change room, lunch room aesthetical preferences, etc. Details are received from all the above groups and the client and copies of Unit Plot Plans including all revisions are distributed to all of them. It is advisable that all proposals be discussed during conceptual stage itself with all groups so as to avoid major revisions at a later date. Licensor: Usually preliminary arrangement plans are furnished by the licensor (usually on 1:100 scale) and our work is limited to update the same incorporating comments of various groups and exact shape and dimensions of the equipment as and when received.
DOC No. : 29040-PI-UFR-0018
TRAINING MANUAL- PIPING
Uhde India Limited
5.0
GENERAL REQUIREMENT OF EQUIPMENT LAYOUT/ UNIT PLOT PLAN
Rev.
: R0
Page
: 4
CONTENTS:
Following may be noted with regards to contents of the Unit Plot Plans:
6.0
•
North direction should be shown.
•
Each Unit Plan to have a key plan of overall G.A. highlighting the area covered by that Unit Plot Plan.
•
All the equipment items should be located by co-ordinates of centre lines or dimensions from a column centre line. Orientation of equipment should be given by locating one big size nozzle usually manhole in plan and elevation. Only elevations should be given. No vertical dimension lines will be added. All elevations should be with respect to +0.00 metres and should be finished elevations.
•
Pipe racks, cable racks, attached to the building will be shown. It is preferable to show also the surrounding roads wherever possible.
•
Each floor level shall be shown separately.
•
Intermediate platforms shall be shown.
•
Sufficient sectional views will be drawn. It is better to cover area between two column grids (e.g. one bay) in one sectional view in order to maintain clarity. Requirement of minimum clear, height, bottom elevation of monorails and elevation of top of brackets for travelling cranes should clearly be marked in sectional views.
•
Critical lines requiring shortest route/minimum slope from process point of view and lines of sizes> 500 mm, from interference and flexibility point of view should be included in the arrangement plan.
•
Include a table showing TON and Equipment Designation.
•
Add pipe rack, cable tray loads for piperack plot plans.
•
Show hand railings, curbing, etc.
•
Mark various floor protection areas.
•
Show coverage of roof wherever required.
•
Show major openings in floors.
•
Show major trenches, sumps and pits.
GENERAL POINTS:
In absence of any other data agreed, following may be used for developing Unit Plot Plans: •
Minimum clear distance around every equipment
:
600 mm
•
Minimum clear distance between two equipment
:
600 mm
DOC No. : 29040-PI-UFR-0018
TRAINING MANUAL- PIPING
Uhde India Limited
GENERAL REQUIREMENT OF EQUIPMENT LAYOUT/ UNIT PLOT PLAN
Rev.
: R0
Page
: 5
•
Distance of equipment from any wall
:
600 mm
•
Minimum clear headroom below & above any platform.
:
2.2 m
•
Minimum clear height with R.C.C .Roof
:
3.75 m
•
Minimum height for bottom of truss tie with asbestos cement sheets roofing.
:
5.00 m
•
Height of vertical cladding from finished floor level
:
3.0 m
•
Provide minimum two staircases, if The plant is hazardous i.e.fire hazards. Number of Persons normally working above the ground floor level exceeds 20. Fire escape staircase should lead to ground level outside the building and should be accessible within 25 Mts. (maximum) from any point within the Unit.
•
Minimum foundation height for equipment located on the ground from highest finished floor level.
:
200 mm
•
Highest finished floor level for a Unit/Building above the surrounding road levels.
:
150 to 200 mm
•
Kerb for openings
:
150mm high
Reference: UIL QA Document – Technical Instructions 09 - PIL – F01 Instructions for Equipment Arrangement
