Freeze block testing of buried waste lines
An investigation was conducted to demonstrate application of freeze blocking in waste transfer lines such that a hydrostatic pressure test can be applied. A shop test was conducted on a 20-foot length, 3-inch schedule 40, carbon steel pipe using a coolant of dry ice and Freon. The positive results from these tests prompted a similar employment of the freeze block method in hydrostatic pressure testing the feed inlet leading to 241-S-101 Waste Tank. This pipeline is a 3-inch schedule 10, stainless steel pipe approximately 800 feet long. The freeze block was formed near the lower end of the pipe as it entered the 101-S Waste Tank and a pressure hold test was applied to this pipeline. This test proved the integrity of the pipeline in question, and demonstrated the validity of freeze blocking an open-ended pipeline which could not be hydrotested in other conventional ways. The field demonstration facility, costing $30,200 was completed late in 1975.
- Research Organization:
- Atlantic Richfield Hanford Co., Richland, WA (United States)
- DOE Contract Number:
- E(45-1)-2130
- OSTI ID:
- 7338460
- Report Number(s):
- ARH-CD-692; TRN: 76-021756
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
PIPELINES
TESTING
RADIOACTIVE WASTES
WASTE TRANSPORTATION
CARBON DIOXIDE
CARBON STEELS
COST
FREEZING
FREONS
LOW TEMPERATURE
PRESSURE DEPENDENCE
TEST FACILITIES
TRANSPORT
ALLOYS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
HALOGENATED ALIPHATIC HYDROCARBONS
IRON ALLOYS
IRON BASE ALLOYS
MANAGEMENT
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
REFRIGERANTS
STEELS
WASTE MANAGEMENT
WASTES
052000* - Nuclear Fuels- Waste Management
360103 - Metals & Alloys- Mechanical Properties