Hydrogen measuring device

Patent · Tue Jan 28 00:00:00 EST 1986

OSTI ID:6050889

Smith, R

This patent describes a device for measuring free hydrogen concentration in the coolant of a nuclear reactor. This device consists of: 1.) two gamma thermometers each comprising an elongated rod that is housed in a sheath. The rod is provided with a series of enclosed annular spaces formed between the rod and the sheath. Different thermocouples are disposed along the rod and have hot and cold junctions. The hot junctions of the thermocouples are positioned adjacent to the annular spaces and the cold junctions are positioned between the annular spaces. 2.) the annular spaces form annular heat insulating chambers for the hot junctions of the thermocouples, a vacuum is formed in the annular heat insulating chambers of the first of the two gamma thermometers for insulating the hot junction and providing a space in which free hydrogen can collect. In the annular heat insulating chamber of the second of the two gamma thermometers, a gas other than hydrogen is disposed to prevent hydrogen contamination of the annular space; and 3.) the two gamma thermometers are positioned parallel and adjacent to one another so that the free hydrogen partial pressure can be calculated from the comparison of the indicated power generation rates of the two adjacent and parallel gamma thermometers.

• Assignee: Scandpower, Inc., Bethesda, MD
• Patent Number(s): US 4567013
• Application Number: TRN: 86-014506
• OSTI ID: 6050889
• Resource Relation: Patent File Date: Filed date 22 Sep 1983
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
HYDROGEN
MEASURING METHODS
REACTORS
COOLANTS
GAMMA SPECTROMETERS
THERMOMETERS
ANNULAR SPACE
PARTIAL PRESSURE
POSITIONING
POWER GENERATION
THERMAL INSULATION
THERMOCOUPLES
CONFIGURATION
ELEMENTS
MEASURING INSTRUMENTS
NONMETALS
SPACE
SPECTROMETERS
220200* - Nuclear Reactor Technology- Components & Accessories