Upload
dangmien
View
266
Download
1
Embed Size (px)
Citation preview
CANNED MOTOR PUMPS
Teikoku Model R
Refrigeration Pumps
10-08-2013
CANNED MOTOR PUMPS Teikoku Pump Internals
•Centrifugal Pump
•Single Stage
•Enclosed Impeller
•Stator & Rotor “Canned”
•True Secondary
Containment
•Product Lubricated &
Cooled Motor
•Carbon Sleeve Bearings
•304 SS w/ Hard Chrome
Sleeves
Thrust Collars
10-08-2013
CANNED MOTOR PUMPS Teikoku Type R
Reverse Circulation
10-08-2013
CANNED MOTOR PUMPS Restriction Orifice
Rear Bearing Housing
10-08-2013
CANNED MOTOR PUMPS Teikoku Type R
Reverse Circulation
10-08-2013
CANNED MOTOR PUMPS Teikoku Type R & RW
Reverse Circulation Piping
Note 1: Piping must be continuously rising
Note 2: Piping must return to vapor zone
Note 3: No check valves allowed in piping
Note 4: Each pump must have separate pipe
10-08-2013
CANNED MOTOR PUMPS Teikoku Type R & RW
Reverse Circulation Piping
10-08-2013
CANNED MOTOR PUMPS Teikoku Alternatives
Reverse Circulation Piping
10-08-2013
CANNED MOTOR PUMPS Teikoku Exploded View
10-08-2013
CANNED MOTOR PUMPS Sleeve Bearing Details
Bearing With Spiral Grooves Only
Bearing With Spiral & Straight Grooves
Refer to pump specific cross sectional drawing for correct Sleeve Bearing type and location
10-08-2013
CANNED MOTOR PUMPS Teikoku Type R
Cross Sectional Drawing
10-08-2013
CANNED MOTOR PUMPS
Teikoku Vertical
Type R Cross Sectional Drawing
10-08-2013
CANNED MOTOR PUMPS Teikoku Features
Precision Liquid Film Bearings
Lubrication Provided by Refrigerant
Liquid Cooled Canned Motor
True Secondary Containment
Direction of Rotation Indication
TRG Bearing Wear Monitor
10-08-2013
CANNED MOTOR PUMPS Teikoku Rotary Guardian
(TRG)
Pump Mounted Meter
10-08-2013
CANNED MOTOR PUMPS Teikoku Rotary Guardian
(TRG)
10-08-2013
CANNED MOTOR PUMPS Teikoku TRG
Volt Meter Scale
10-08-2013
CANNED MOTOR PUMPS
GREEN
Normal Operation
YELLOW or RED
Stop Pump and Check for Possible Causes
Single Phase
Unbalanced Input Power
Loose Connections
PEGGED RED
Pump Rotating in Reverse Direction
Pinched TRG Wires
TCO Wires Connected to TRG Terminals
Initial Readings
Teikoku Rotary Guardian (TRG)
10-08-2013
CANNED MOTOR PUMPS
GREEN
Normal Operation
YELLOW
Schedule Pump for Maintenance
Recommended to Swap to Spare Pump
RED
Stop Pump and Remove for Maintenance
Never Operate Pump with TRG in RED Zone
Normal Operating Readings
Teikoku Rotary Guardian (TRG)
10-08-2013
CANNED MOTOR PUMPS
Maintenance
Disassembly and
Reassembly
10-08-2013
CANNED MOTOR PUMPS Checks Prior to Disassembly
Has the motor been meggered?
Has the pump been decontaminated?
Are you familiar with the pumped fluid?
Has the Stator Can been breached?
Is your work area clean?
Do you have the required tools?
10-08-2013
CANNED MOTOR PUMPS Unbolt Pump Case / Volute
10-08-2013
CANNED MOTOR PUMPS Remove Pump Case / Volute
10-08-2013
CANNED MOTOR PUMPS Remove Pump Case Gasket
10-08-2013
CANNED MOTOR PUMPS Bend Down Impeller Lock Tab
10-08-2013
CANNED MOTOR PUMPS Remove Impeller Lock Bolt
10-08-2013
CANNED MOTOR PUMPS Slide Impeller Off Shaft
10-08-2013
CANNED MOTOR PUMPS Remove Key
10-08-2013
CANNED MOTOR PUMPS Remove Adjusting Washers
(If Required)
Measure and Record Quantity and Thickness
10-08-2013
CANNED MOTOR PUMPS Unbolt
Front Bearing Housing
10-08-2013
CANNED MOTOR PUMPS Loosen
Front Bearing Housing
Jack Bolt Holes Facilitate Removal
03-14-2011
CANNED MOTOR PUMPS Remove
Front Bearing Housing
Warning: Rotor & Shaft Sleeve may slide out
10-08-2013
CANNED MOTOR PUMPS Unbolt
Rear Bearing Housing
10-08-2013
CANNED MOTOR PUMPS Remove
Rear Bearing Housing
10-08-2013
CANNED MOTOR PUMPS Remove Gasket
10-08-2013
CANNED MOTOR PUMPS Carefully Remove Rotor Assembly
CAUTION: Support Rotor Assembly Do Not Allow Rotor Assembly to Drop and Hit Stator Liner
10-08-2013
CANNED MOTOR PUMPS Visual Inspection
Check Filter & Circulation Pipe (If Required)
Check Stator Liner for contact marks/wear
Check Rotor Liner for contact marks/wear
Check for wear, scratches & scoring on:
Shaft Sleeves
Thrust Collars
Bearings – Inside Bore
Bearings – Thrust Face
10-08-2013
CANNED MOTOR PUMPS Inspect & Record
Bearing Wear
10-08-2013
CANNED MOTOR PUMPS Bend Down Lock Tab
10-08-2013
CANNED MOTOR PUMPS Remove Rear Lock Bolt
Left Hand Threads
CAUTION: Left Hand Threads
10-08-2013
CANNED MOTOR PUMPS Remove Shaft Sleeves
& Thrust Collars
WARNING: Key/Pin may be loose and fall out unnoticed
10-08-2013
CANNED MOTOR PUMPS Remove Set Screw From
Front & Rear Bearing Housings
10-08-2013
CANNED MOTOR PUMPS Slide Out Bearing From
Front & Rear Bearing Housings Note: Some heat on the bearing housing may be used to assist with the removal of the bearing
10-08-2013
CANNED MOTOR PUMPS Remove Adjusting Washers from
Rear Bearing Housing Only
Measure and Record Thickness and Quantity
10-08-2013
CANNED MOTOR PUMPS Measure & Record Balance Groove
Inside & Outside Diameters
10-08-2013
CANNED MOTOR PUMPS Measure & Record Impeller Rear
Wear Ring Inside & Outside Diameters
10-08-2013
CANNED MOTOR PUMPS Measure & Record Impeller Front
Wear Ring Outside Diameter
10-08-2013
CANNED MOTOR PUMPS Measure & Record Pump Case
Wear Ring Inside Diameter
10-08-2013
CANNED MOTOR PUMPS
Radial
Clearances
Chart
Horizontal
Mount
10-08-2013
CANNED MOTOR PUMPS
Radial
Clearances
Chart
Vertical
Mount
10-08-2013
CANNED MOTOR PUMPS
Reassembly
10-08-2013
CANNED MOTOR PUMPS Pump Reassembly
Insure that work space is clean
Clean & dry all components
Inspect all components
Megger check motor
Check resistance of windings
10-08-2013
CANNED MOTOR PUMPS Sleeve Bearing Details
Bearing With Spiral Grooves Only
Bearing With Spiral & Straight Grooves
Refer to pump specific cross sectional drawing for correct Sleeve Bearing type and location
10-08-2013
CANNED MOTOR PUMPS Install Adjusting Washers Into
Rear Bearing Housing Only
10-08-2013
CANNED MOTOR PUMPS Install Bearing Into
Front & Rear Bearing Housings
Flat washer must be installed as shown
V-Grooves must be located on outside end
10-08-2013
CANNED MOTOR PUMPS Install Set Screw Into
Front & Rear Bearing Housings
Make Sure Bearing Is Seated When Tightening Set Screw
Do not over tighten set screw
10-08-2013