Definition and means of maintaining the process vacuum liquid detection interlock systems portion of the PFP safety envelope

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Description

The Process Vacuum Liquid Detection interlock systems prevent intrusion of process liquids into the HEPA filters downstream of demisters {number_sign}6 and {number_sign}7 during Process Vacuum System operation. This prevents liquid intrusion into the filters which could cause a criticality. The Safety Envelope (SE) includes the equipment which detects the presence of liquids in the vacuum headers; isolates the filters; shuts down the vacuum pumps; and alarms the condition. The presence of liquid in the HC-4, HC-7, and HC-227S glovebox vacuum traps or a high level of liquid in the 236-Z Tank 50 will isolate these portions of the vacuum system ... continued below

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40 p.

Creation Information

Thomas, R.J. January 2, 1997.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 37 times , with 11 in the last month . More information about this report can be viewed below.

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  • Westinghouse Hanford Company
    Publisher Info: Westinghouse Hanford Co., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

The Process Vacuum Liquid Detection interlock systems prevent intrusion of process liquids into the HEPA filters downstream of demisters {number_sign}6 and {number_sign}7 during Process Vacuum System operation. This prevents liquid intrusion into the filters which could cause a criticality. The Safety Envelope (SE) includes the equipment which detects the presence of liquids in the vacuum headers; isolates the filters; shuts down the vacuum pumps; and alarms the condition. The presence of liquid in the HC-4, HC-7, and HC-227S glovebox vacuum traps or a high level of liquid in the 236-Z Tank 50 will isolate these portions of the vacuum system from the main headers. This report identifies the equipment in the SE; operating, maintenance, and surveillance procedures needed to maintain the SE equipment; and rationale for exclusion of some equipment and testing from the SE.

Physical Description

40 p.

Notes

OSTI as DE98059488

Source

  • Other Information: PBD: 2 Jan 1997

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  • Other: DE98059488
  • Report No.: WHC-SD-CP-SDD--013-Rev.2
  • Grant Number: AC06-96RL13200
  • DOI: 10.2172/325069 | External Link
  • Office of Scientific & Technical Information Report Number: 325069
  • Archival Resource Key: ark:/67531/metadc674945

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 2, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

Description Last Updated

  • June 14, 2016, 2:26 p.m.

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Thomas, R.J. Definition and means of maintaining the process vacuum liquid detection interlock systems portion of the PFP safety envelope, report, January 2, 1997; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc674945/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.