Overview of Secondary Glycol Units Design and Equipment Operation
Explore the design goals, equipment resources, field piping layout, and water & refrigerant piping reviews for secondary glycol units, covering aspects like reduced refrigerant charge, redundancy, visibility of issues, energy efficiency, and more. The equipment design includes rack compressor, glycol unit, pump skid, chiller skid, and various components for efficient operation.
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Presentation Transcript
Secondary Glycol Units Overview of Design & Equipment Operation By Tommy Ray
Equipment Resources QR codes inside enclosures Walmart landing page Zeus / Parts Drawings / Submittals Tommy Ray Programs / Sequence of operations Joe Schmidt Argos Service
Design Goals Reduced refrigerant charge Redundancy where possible Visibility of issues (Alarms / Argos) Low turndown Energy efficient Cover a wide range (Mini / Small / Medium / Large) Minimize condensation Understand risk
Equipment Design Review of Field Piping Diagram Compressor Rack / Rack Secondary Glycol Unit (SGU) / Pump Skid / RAE Skid / Chiller Skid Cases / Coolers / Load Side
Equipment Design Water Piping Review Isolation Valves Inlet / Outlet / Emergency Service Pump / BPHX / Expansion Tank / Feeder Tank Glycol Feeder Tank Emergency Service Connections Air Separator Expansion Tank w/ Drain Strainer w/ hose bib BPHX Single Water Circuit Tango Pump Transducers and Temperature Sensors Differential Pressure Entering / Leaving Fluid Temperature (Sporlan / Carel) Pump Suction and Discharge (Carel / Armstrong) Mechanical Low-Pressure Cutout
Equipment Design Refrigerant Piping Review Isolation Valves Unit Inlet / Outlet BPHX Suction Accumulator w/ HX BPHX Split Refrigerant Circuits Split capacity LLS / EEV Suction Oil Catch w/ valve Transducers and Temperature Sensors Suction Lines Entering Liquid Temperature (SA-HX) Leaving Liquid Temperature (SA-HX)
Unit Offerings Mini Sized for 10 to 30 GPM Small Sized for 30 to 45 GPM Medium Sized for 40 to 70 GPM Large Sized for 80 to 130 GPM
Risk Mitigation Microsoft Excel Worksheet
