Bi-Directional Flow Control Valve

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Bi-Directional Flow Control Valve

• Dale Bernier
• Judy Biddle
• Timothy Brown
• Christopher "Robby" Freeborn-Scott
• 15 October 2009

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Brief Overview

• Background
• Problem/Objective
• Design Concepts
• Concept Selection/Design Matrix

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Introduction Background

• September 11, 2001 Pentagon Attack

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Problem

• Currently, only one-directional mechanical flow
  valves are available on the market

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Objective

• Design and prototype a bi-directional flow
  control valve

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Design A Door Hinge Valve
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Design A Door Hinge Valve
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Design A Door Hinge Valve

• Circular plate connected to hook acts as valve
• Spring force balances pressure force while
  valve maintains normal operations
• If tube breaks, the force on the hook becomes
  greater than the spring force causing the valve
  to close

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Design B Hour Glass Stopper
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Design B Hour Glass Stopper
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Design B Hour Glass Stopper

• Stopper suspended by six springs, three on each
  side, arranged in an equilateral triangle
• Water flow exerts pressure on stopper area
• In the event of a sudden pressure difference,
  the force on one side will close the valve by
  overcoming the spring force

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Design C Tension Springs
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Design C Tension Springs
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Design C Tension Springs

• Two springs active clapper-type device on each
  end of the valve
• Springs are extended by an pressure difference
  to close off the valve
• When the pressure returns to normal the spring
  retracts, opening the valve

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Design D Dual Door Valve
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Design D Dual Door Valve
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Design E Uniaxial Plate Valve
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Design E Uniaxial Plate Valve
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Design E Uniaxial Plate Valve

• The stopper is mounted on an axial bar that is
  attached to the sides of the valve by
  perpendicular bars
• The axial bar has springs on each side to hold
  the stopper in an equilibrium position
• Functions in a similar manner to the Hour Glass
  Stopper

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Design Matrix
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Final Design Selection Design B
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Conclusion

• Discussed
• Background/Problem
• Concepts
• Concept Generation
• Design Matrix

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Questions