Your SlideShare is downloading. ×
0
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
In Rural Water Alliance Pump Stations
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

In Rural Water Alliance Pump Stations

862

Published on

Published in: Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
862
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. ALLIANCE OF INDIANA RURAL WATER Spring 2007 - Bloomington Wastewater Pumping System Design Considerations and Troubleshooting
  • 2. Seminar Overview
    • Site Selection
    • Basis of Design Considerations
    • Key Design Issues
    • Operational Troubleshooting
    • Wrap-up and Final Questions
  • 3. Intro to F&V/Speaker
    • F&V Summary
      • IN presence since late 1970s as Gove Associates
      • 120+ Staff with Indianapolis/Ft Wayne Offices
      • 70% of our clients are small-mid size communities
    • Ed’s Background
      • 21 yrs experience (over 10 in IN)
      • WWTP/CSO/Collection/PSs/IPP/System Rehab.
      • Civil/Env Eng with Hydraulics/Hydrology Conc.
  • 4. Site Selection (new locations)
    • Location-Location-Location
      • Facility Depth
      • Property Size
      • Growth Provisions
    • Environmental Issues
      • Wetlands
      • Floodplains
      • Aesthetic Surroundings
  • 5. Site Selection (cont)
    • Access Issues
      • Maintenance Vehicles
      • Chemical Feed
      • Adverse Weather
      • Drainage/Floodplains
    • Utility Infrastructure
      • Electrical service
      • Telemetry signal / system issues
  • 6. Basis of Design (exist PS)
    • Why is it important to understand this?
      • Know the facility limitations (flow, area etc)
      • Be aware of design constraints / limitations
        • Discharge Conditions
        • Low Flow Conditions
        • Peak Flow Conditions
        • Expansion Constraints
  • 7. Basis of Design (cont)
      • Pump Station Design
        • Know “factory” original capacity
        • Original wetwell cycle times
        • Understand O&M schedules/issues
        • Equipment Life Cycles (anticipate future costs)
        • Odor control
        • Floatable Solids
        • Grease/Oils
  • 8. Basis of Design (new)
    • Important Components to Have Input On
      • Location – Location – Location
      • Service Area – Existing and Future
      • Access – Maintenance & Chemical Delivery
      • Hydraulic Design
        • Wet well capacity / cycle times
        • Peak Flow Capacity
        • Number and Size of Pumps
        • Pump Control Approach (VFD/Constant)
        • Low Flow Conditions
        • Impeller Selection
  • 9. Basis of Design (cont)
      • Type of pump station (submersible etc)
      • Electrical Service
        • Phase
        • Voltage
      • Pump Control Issues
        • VFD vs Constant Speed
        • Start/Stop Level Control Type
      • Provisions for future capacity
        • Impeller changes
        • Pump changes
        • Wetwell Changes
  • 10. Key Design Issues - Summary
    • Site Design Considerations
    • Pump Station Type / Pump Selection
    • Hydraulic Pump Design
    • Wetwell Design
    • Controls/Telemetry
    • Odor Control
  • 11. Site Design Considerations
    • Site Access Issues – Daily
    • Site Access Issues – Chemical Feed Deliveries
    • Electrical Power Facilities (OH/Transformers)
    • Configuration of PS Structures
    • Drainage Considerations
    • Telemetry Considerations
    • Future Capacity Considerations
  • 12. Pump Station & Pump Selection
    • Submersible
    • Self-Priming
    • Dry Pit
    • Alternative Configurations
    • High Flow
    • CSO/Storm
  • 13. Pump Basics Pump Types / Characteristics
  • 14. Pump Basics (cont)
    • Pump Selection Factors
      • Fluid Type
      • Flow
      • Solids Handling Requirements
      • Site and Facility Constraints
      • Existing Equipment/Owner Preference
  • 15. Pump Basics (cont) Specific Gravity of Pumped Fluid has large affect on Total Dynamic Head
  • 16. Submersible
  • 17. Self-Priming
    • Cost-Effective
    • Equipment at Ground Level – maintenance
    • Needs site fencing for security
  • 18.  
  • 19. Dry Pit Installations
  • 20. Centrifugal Pump Curve
  • 21. Alternative Installations Submersible pumps can be installed in dry-pit applications
  • 22. Alternative (cont)
    • Heavy solids issues require special pumps
  • 23. High Flow Pumping
    • Turbine, Mixed and Axial Flow Pumps
  • 24. High Flow (cont)
  • 25. CSO / Stormwater
  • 26. CSO / Storm (cont)
  • 27. CSO / Storm (cont)
  • 28. Hydraulic Pump Design
  • 29. Hydraulic (cont)
  • 30. Hydraulic (cont)
  • 31. Hydraulic (cont) Net Positive Suction Head (function of alt/fluid/lift/suction friction losses
  • 32. Hydraulic (cont)
    • Suction Side Cavitation
      • Air Entrainment
      • Improper Suction Piping
    • Discharge Side Cavitation
      • Runout beyond pump curve
  • 33. Wetwell Design
    • Sizing is a function of the following:
      • Flow
      • Horsepower
      • Cycle Times (starts per hour)
    • Try to avoid air entrainment
    • Try to provide uniform approach velocities
  • 34. Wetwell (cont)
  • 35. Wetwell (cont)
  • 36. Controls / Telemetry
    • Pump Controls (on/off)
      • Floats
      • Air Pressure Bells
      • Pressure Transducer
    • Pump Speed Controls
      • Constant Speed
      • VFD
      • Belt Drives (shive adjustable)
  • 37. Odor Control
    • Key Elements to Fight Odor Problems
      • Correct hydraulic and pump station design
      • Treat the wastewater (chemicals/aeration etc)
      • Treat the off gases (activated carbon)
  • 38. Operational Troubleshooting
    • Many future operational problems can be prevented by a thorough checkout at startup.
      • Do not rely just on the standard manufacturer’s forms
      • Remember the pump station basis of design and other key pump design information after the PS is placed into service.
  • 39. Troubleshooting (cont)
    • Potential Operational Problems
      • Pump clogged
      • Reduced actual pumping rate
      • Overheating/Breaker Issues
      • Control malfunctions
      • Excessive flows
      • Grease/Oil/Floatable Solids
      • Odor Issues/Corrosion Issues
      • Pump Vibration
  • 40. Troubleshooting (cont)
    • Many Different Factors can lead to similar problems.
  • 41. Troubleshooting (cont)
  • 42. Conclusions

×