Safety Relief Valve Test Rig Update
Transcript of Safety Relief Valve Test Rig Update
Safety Relief Valve Test Rig Update Marc Claas - IRC
Current Location Basement of Mechanical
Engineering
Rig is anchored to the floor
Secure gas cylinder storage
Possible future air line
Added high speed data acquisition system
Test Rig Compressed air cylinders with two-stage regulator
Test Rig
5.9 cubic foot vessel to buffer pop test
Test Rig
Vessel drain valve
Test Rig
Inlet connection
Test Rig
Relief valve undergoing test
Test Rig
High speed data acquisition
Calibrated Pressure Transducer
Pressure Transducer Omega PX309-500GI
4-20 mA signal with 9-30V excitation
NIST Traceable Calibration
0.25% Static Accuracy Typical
2% Total Error Band on Most Ranges of Amplified Units
Response time of <1 ms
http://www.omega.com/pptst/Px309.html
Data Acquisition Hardware National Instruments 9203
8-Channel ±20 mA,
200,000 Samples/Second
16-Bit AI Module
cDAQ-9171
USB to computer
Power
Data
Easy to set up and use
http://sine.ni.com/nips/cds/view/p/lang/en/nid/208805
Data Acquisition Software LabView Signal Express
Easy set-up for basic logging and data visualization
Video of Operation
Test Results Software outputs list of numbers
Can be plotted and manipulated with Excel
Data Analysis Using pressure
Temperature of the air in the rig can be calculated
Data Analysis Using pressure
Mass of the air in the rig can be calculated
Time rate change of rig’s air mass allows mass flow to be estimated
Data Analysis – mass flow rate
Future Plans
We are continuing to shake test the rig
Possible compressed air line in future
We are considering what additional testing we can perform
Questions