Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling...
Transcript of Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling...
![Page 1: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/1.jpg)
Easy. Safe. Simple.Access for Maintenance
to Cooling Towers
Paul DaviesRepresenting
Clint LewisRepresenting
![Page 2: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/2.jpg)
• Types of Cooling Towers typically offered in the HVAC Industry
• Overview of Cooling Tower components requiring access for maintenance.
• Design obligations and standards surrounding hygiene, access and maintenance of Cooling Towers.
• Access options that meet requirements.
• Questions
Introduction
![Page 3: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/3.jpg)
Types of Mechanical Draft Cooling Towers (airflow)
• Forced Draft Equipment
› One or more fans are located
at the air inlet to force air into
the tower
• Induced Draft Equipment
› One or more fans are located
in the air outlet to induce air
flow through the air inlets
![Page 4: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/4.jpg)
Types of Fluid Paths in Cooling Towers
• Crossflow - Air flows horizontally through the cooling tower and interfaces perpendicularly with the falling hot water
• Counterflow - Air enters at the base of the cooling tower, flows upward and interfaces counter-currently with the falling hot water
Water
Air
Water
Air
![Page 5: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/5.jpg)
Induced Draft COUNTERFLOW Equipment Principle of OPERATION
![Page 6: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/6.jpg)
Induced Draft CROSSFLOW Equipment Principle of OPERATION
Dual Air InletSeries 3000
Single Air InletSeries 1500
![Page 7: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/7.jpg)
Common Components requiring regular access for maintenance
DRIVE SYSTEM Crossflow and Counter
Flow
COLD WATER BASIN Crossflow and Counter
Flow
BELT DRIVE SYSTEM
![Page 8: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/8.jpg)
Common Components requiring regular access for maintenance
BASIN SWEEPERS
![Page 9: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/9.jpg)
Common Components requiring regular access for maintenance
PVC FILL Crossflow and Counter
Flow
PVC ELIMINATORSCounterflow
![Page 10: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/10.jpg)
Common Components requiring regular access for maintenance
SPRAY SYSTEM Crossflow and Counter
Flow
AIR INLET LOUVRES Crossflow and Counter
Flow
![Page 11: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/11.jpg)
Design Obligations
Australian Standard 3666(Air-Handling & Water Systems of Buildings– Microbial Control)
Clause 4.1.1 - Access for maintenance:
“Easy and safe access for cleaning, inspection and maintenance shall be available to and about all plant, equipment and components covered in this Section”.
Clause 4.1.5 - Cooling towers:
“Cooling towers shall be fabricated from corrosion resistant materials, and shall be designed for ease of maintenance, particularly for cleaning of fill, water distribution system, basin and sumps.”
![Page 12: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/12.jpg)
Design Obligations
Australian Standard - AS1657Fixed platforms, walkways, stairways and ladders –
Design, construction and installation
• AS1657 is the Australian Standard that all designers, builders and suppliers of Access Solutions MUST design, select, construct and install to.
• The standard outlines all of the design clearances, tolerances and material types for compliant access solutions.
![Page 13: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/13.jpg)
Design Obligations
SAA HB 32 - 1992
Clause 6.2 - Access for maintenance:
In Summary –• All cooling tower installations should allow for access to items
such as , Water Distribution, Pipework Headers, Heat Exchange Fill Media etc.
• Cooling Tower installations should be provided with appropriate FIXED access ladders, internal/external walkways, handrails, toeguards and platforms all in accordance with AS1657.
![Page 14: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/14.jpg)
Design Obligations
Queensland Government Workplace Health and Safety Supplement No.2 to the
PLANT ADVISORY STANDARDClause 3 -Design and installation of cooling water systems
• “Easy and safe access should be available to cooling water systems. The design of the system should facilitate regular maintenance and cleaning.”
Clause 5.3 -Who else has workplace health and safety obligations in relation to microbial control in cooling systems of buildings?
• Designers – to ensure the plant is designed properly.• Installers – to ensure the plant is installed safe and without risk• Employers – To ensure health and safety is not affected by the way the
person conducts the person’s undertaking.
![Page 15: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/15.jpg)
Access Considerations
PIER HEIGHTS• Piers allow for all pipework to be under the towers to allow
“freedom” to move around the plant• Piers also allow for a flooded suction to Condenser pumps
![Page 16: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/16.jpg)
Access Considerations
EXTENTS OF EXTERNAL WALKWAYS REQUIRED• Low Level – Basin Access• Mid Level – Fill and CIS Access• High Level – Water Distribution Access (Spray System)
![Page 17: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/17.jpg)
Access Considerations
EXTENTS OF INTERNAL WALKWAYS REQUIRED
• Low Level – Basin Access• High Level – Drive access
![Page 18: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/18.jpg)
Site Examples(180 Anne St)
![Page 19: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/19.jpg)
Site Examples(Sunshine Coast Uni Hospital)
![Page 20: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/20.jpg)
Site Examples(Canelands)
![Page 21: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/21.jpg)
Site Examples(K1)
![Page 22: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/22.jpg)
Site Examples(Orion Shopping Centre)
![Page 23: Easy. Safe. Simple. Access for Maintenance to …. Safe. Simple. Access for Maintenance to Cooling Towers Paul Davies Representing Clint Lewis Representing •Types of Cooling Towers](https://reader036.fdocuments.us/reader036/viewer/2022062907/5ab1eceb7f8b9aea528d00ff/html5/thumbnails/23.jpg)
Presented by: Clint LewisApplications Engineer, Baltimore Aircoil AustraliaTel: +(61) 02-4340-9004 Mob: +61 417-066-149Email: [email protected] | Web: www.baltimoreaircoil.com.au