Transcript Glycol Pumps - Kimray, Inc

Glycol Pumps
Operating Pressure:
100 to 1500 psi
Circulation Rate:
3 to 450 gph
What is a Glycol Pump?
• A pump used for circulating glycol within a
dehydration system.
• A pump used to circulate amine within a
desulphurizer system.
Features
• No auxiliary power required
• Eliminates need for level control and dump valve at
absorber
• Low gas consumption
• Completely sealed system prevents glycol loss
• Only two moving assemblies
• Hydraulic “cushioned” check valves with
removable seats of hardened stainless steel
• Circulation Rates:
SC Series 8 - 200 gph
PV Series 3 - 450 gph
Natural Gas Dehydrator
Dry Gas Out
Dry glycol
Reboiler
Absorber
(Contactor)
Wet
Gas
In
Wet glycol
Pump
Dry glycol
Wet glycol
Heat exchanger
surge tank
Natural Gas Dehydrator
Contactor Tower
Glycol Cooler
Reboiler
Dry Gas
Outlet
Inlet Scrubber
Wet Gas Inlet
Surge Tank
High Pressure
Filter
Excess Separated
Gas Outlet
Condensate Outlet
Three Phase Gas, Glycol &
Condensate Separator
Condensate Outlet
Piston ready to move to the right
Wet Glycol from Absorber (High Pressure)
Wet Glycol to Reboiler (Low Pressure)
Dry Glycol from Reboiler (Low Pressure)
Dry Glycol to Absorber (High Pressure)
Piston on its way to the right
Wet Glycol from Absorber (High Pressure)
Wet Glycol to Reboiler (Low Pressure)
Dry Glycol from Reboiler (Low Pressure)
Dry Glycol to Absorber (High Pressure)
Piston ring contacts actuator
Wet Glycol from Absorber (High Pressure)
Wet Glycol to Reboiler (Low Pressure)
Dry Glycol from Reboiler (Low Pressure)
Dry Glycol to Absorber (High Pressure)
Actuator moves ‘D’ slide to the right
Wet Glycol from Absorber (High Pressure)
Wet Glycol to Reboiler (Low Pressure)
Dry Glycol from Reboiler (Low Pressure)
Dry Glycol to Absorber (High Pressure)
‘D’ slide shifts ports
Wet Glycol from Absorber (High Pressure)
Wet Glycol to Reboiler (Low Pressure)
Dry Glycol from Reboiler (Low Pressure)
Dry Glycol to Absorber (High Pressure)
High pressure shifts pilot piston
Wet Glycol from Absorber (High Pressure)
Wet Glycol to Reboiler (Low Pressure)
Dry Glycol from Reboiler (Low Pressure)
Dry Glycol to Absorber (High Pressure)
Reversal of flow shifts check valves
Wet Glycol from Absorber (High Pressure)
Wet Glycol to Reboiler (Low Pressure)
Dry Glycol from Reboiler (Low Pressure)
Dry Glycol to Absorber (High Pressure)
Animation
Pump Trouble Shooting
•
Loss of fluid circulation
Runaway pump
Hammering sound
Pump skips
•
Pump runs until normal temp. is
reached
•
Erratic pump speed
•
Pump stalls
•
Leaking check valves
Valve body seal
Dart seal
•
Piston, piston rod seals
•
Suction Lines too small
•
Traps in wet glycol power piping
send alternate slugs of glycol-then
gas
•
•
•
•
•
Plugged lines in dehy stystem
Swollen O-rings
Plugged passages in pump
Blocked check valve
Loose actuator
Pump Trouble Shooting
• Gas blow-by to wet discharge
• ‘D’ slide seal or port
plates
• Pilot piston seal
failure
• Excessive service required
• Poor Maintenance
• Poor filtration
• Chemical
contamination
Pump Trouble Shooting
• Swelling
• Shrinking
• Brittle
•
•
•
•
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• Square O-rings
(compression set)
• High temperature
• Swelling due to system fluids
• Extrusion – nibbled or
partially dissolved
• Sour gas / Acid
• One side flat
• Abrasion
Liquid condensate problems
Liquid condensate problems
Sour gas
Organic acids
High temperature
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AF
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AF
Filters