Pre-Conference Workshop
SWRCB Wastewater: 0.7 CEU
CWEA: 7.2 Contact Hours
$145 before Friday, March 22, 2019, and $174 after
Practice Area: Operations & Maintenance, Engineering & Research, Electrical & Instrumentation, Collection Systems
This workshop covers an overview of pumps types for typical wastewater applications with detailed presentations on solids handling pumps, seals, maintenance programs, vibration monitoring, troubleshooting and testing. This workshop is specially tailored for operations, maintenance, and collection system professionals and engineers.
Schedule:
Workshop Segments:
Mechanical Seals – Design & Technology
This presentation will cover the history of the rotary shaft seal. From its earliest design, we will look at how materials and technology have evolved over the years to meet the increasing demands of industrial process applications. We will explore the finer elements of design & technology and how they relate to the times. This timeline will conclude with the discussion of RFID being used today and the nano-technology of the future.
Speaker: Paul Houghton, Area Manager – Western Region, A.W. Chesterton Company
Wastewater Pumping 101: More Than What You Wanted to Know
This presentation will cover the fundamentals of wastewater pumping. We will review pump curves and system curves and their correlation to the pump efficiency. The presentation will also cover the differences between series vs parallel pumping and how to utilize variable frequency drives to our advantage.
Speaker: Eric Lovering, Managing Engineer, LEE & RO, Inc.
Positive Displacement Pumps in Waste Water Treatment Plants
Positive displacement pumps traditionally have been used in the Waste Water industry. Engineers and operators can chose between Rotary Lobe Pumps and Progressing Cavity Pumps. An overview will be provided where in the process these technologies are used. Differences between the two technologies and recent upgrades and improvements to the mentioned technologies will be explained.
Speaker: David Ban, MISCOwater
Pump Trouble Shooting
This presentation will present ideas, means and methods to troubleshoot existing pump installations. It will attempt to answer questions such as: “Is my pump performing like new?” “Is my pump vibration within acceptable limits?” “Do my bearings need lubrication or replacement” “Is my pump cavitating?” And it will address other questions related to changes in pump condition since it was installed new or last overhauled. The presentation will provide a simple means to obtain head and flow data to compare to the new condition flow and pressure performance. This same test can reveal the actual system resistance curve for comparison to the “design” system resistance Vibration and ultrasonic testing methods will be discussed to understand the benefits of such testing on pump troubleshooting for many installation problems like misalignment, cavitation, poor foundation/support issues, bearing health and other symptoms of less than new performance. In addition to reviewing techniques for troubleshooting, actual field test data will be utilized to illustrate what findings mean.
Speaker: Thomas Hendrey, P.E., West Yost Associates
The Power of Pump Maintenance
This segment will provide an overview of Central Contra Costa Sanitary District’s Maintenance Reliability program and how it is applied toward pump maintenance. Trained mechanics, regularly scheduled work orders and accurate instruments are all necessary for maintaining a good pump maintenance program. By conducting oil analyses, vibration reports and condition assessments, CCCSD ensures pumps are in top working condition to meet process demands. Through this maintenance program, plant personnel have prevented thousands of dollars of repairs from pump failures, allowing pumps to extend their useful life considerably.
Speaker: Jon Nicolaus, Maintenance Planner, Central Contra Costa Sanitary District
Adapting (pump motors) to Changing Technology at Santa Clara Valley Water District
Medium voltage (MV) medium horsepower pump motors represent large capital investment that need to be able to be modified to accept changing motor control and protection technologies. One change is using variable frequency drives (VFD’s) in place of slip-recovery drives. Wound rotor motors are converted to simple induction motors allowing them to be controlled by VFD’s from numerous manufacturers. The second motor modification is the addition of motor bearing vibration and temperature monitoring instrumentation. While this instrumentation is simple to add, its data and protective features are monumental in extending the life expectancy of the motor. These motor modifications will insure 15+ years of additional reliable life of this capital equipment.
Speaker: John Brosnan, Electrical and Control Systems Engineering Manager at Santa Clara Valley Water District, and Greg DeBois, Supervising Engineer at LEE & RO, Inc.
Zaheer Shaikh
Project Manager
Lee & Ro, Inc., California
Greg DeBois, P.E., M.ASCE
EI&C Supervisor
Lee & Ro, Inc.
walnut creek, CA
Thomas Hendrey, P.E.
Principal Engineer
West Yost Associates
Walnut Creek, California
Paul Houghton
Area Manager – Western Region
A.W. Chesterton Company
Groveland, MA
Eric Lovering
Managing Engineer
LEE & RO
San Diego, California