Automated Vacuum BakeOut Station

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Automated Vacuum Bake-Out Station
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Team Members

• Taiyoh Afrik
• Chad Conner
• Lee Groeneweg
• Michael Jourden
• Colleen Koperski

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Presentation Overview

• Objectives
• Mechanical Design
• Process Control and Data Acquisition
• System Features
• Budget
• Schedule

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Objectives

• Automate the existing manual bake-out process.
• Design a data acquisition system to gather
  pressure and temperature data from the bake-out
  process.
• Design adjustable fixturing to hold varying sizes
  of catalytic converters.

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Mechanical Design

• Fixture
• Aluminum base plate
• Retractable fixturing - shells and heat blower
• Manifold for compressed air
• Cooling Ring
• Air Amplifier

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3-D Model of Fixture (heating)
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3-D Model of Fixture (cooling)
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Process Control and Data Acquisition

• LabView, used for the process control and data
  acquisition systems.
• National Instruments (NI4351) DAQ card, for
  thermocouple inputs.
• 14 thermocouple inputs with signal conditioning
  built into the board.
• 8 digital TTL I/O

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Process Control and Data Acquisition (continued)

• National Instruments (PCI-6024E) DAQ card, used
  for all other inputs and outputs.
• 16 analog inputs
• 2 analog outputs
• 8 digital TTL I/O

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Control System Features

• System will have an emergency stop button.
• Vacuum pump is shut off
• Heat blower and radiant heaters are turned off
• Vacuum shut off valve is activated
• Variable set points for process temperature and
  pressure through LabView.
• Electrical enclosure will have quick connects for
  thermocouples.

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Pressure Gauges

• 2 pressure gauges required for measurements over
  large range of vacuum pressures.
• Range 1 Atmosphere to 10-3 torr.
• PS216 from MKS Instruments
• Range 2 10-3 - 10-5 torr.
• PS205 from MKS Instruments

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Heat Blower

• Leister Hot Wind S
• Fixed 12 CFM
• Heat up to 800 degrees Celsius
• Power 2850 Watts
• Source 220VAC
• With the optional digital controller, the
  temperature of the Hot Wind S can be remotely
  controlled by an analog signal.

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Budget
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Schedule

• Parts will be ordered during the week of April
  21, 2000.
• Building of the fixturing will begin May 8, 2000
  and be completed by June 9, 2000.
• The control system will be built and wired
  beginning on May 8, 2000, and will be completed
  by June 23, 2000.

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Schedule (continued)

• Final system debugging is scheduled to be
  completed July 10, 2000.
• Test parts will be run starting July 11, 2000,
  and continue until the system is functioning
  correctly.
• VBO station presented for approval by August 4,
  2000.
• Final product delivered upon approval.

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Questions and Answers
Automated Vacuum Bake-Out Station