Design of a continuous duty cryopump
A continuous duty cryopump system was designed and developed that comprises a self-contained cryopump for installation into a vacuum chamber, and a microprocessor controller for automatic operation. This deuterium pump has two units in a single housing, arranged so that one is pumping while the other is being regenerated. Liquid helium-cooled, finned sections in each unit pump deuterium by condensation, and a third pump integral within the cryopump housing collects the regenerated gas. A microprocessor unit controls distribution of liquid and gaseous helium, used for conditioning the pumping units, and operates remote actuators for the regeneration. Software provides fully automatic, timed sequencing of the repetitive cryopump events which include: cooldown of the pumping units, opening of the louvers isolating the unit from the vacuum chamber, closing of the louvers, and warming up of the unit for regeneration. Default values in the software can be reprogrammed by the operator through the keyboard in response to prompts displayed on the computer. An override allows the operator to control the cryopump manually by activating switches on a control panel. Interlocks to prevent cryogen lockup are included in the software.
- Research Organization:
- Grumman Aerospace Corp., Bethpage, NY (USA). Space Div.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5185903
- Report Number(s):
- UCRL-15827; ON: DE86016070
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of a continuous duty cryopump
Argon frost continuous cryopump for fusion applications
Related Subjects
CRYOPUMPS
DESIGN
COMPUTERIZED CONTROL SYSTEMS
DEUTERIUM
HELIUM
SWITCHES
TRITIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CONTROL SYSTEMS
ELECTRICAL EQUIPMENT
ELEMENTS
EQUIPMENT
FLUIDS
GASES
HYDROGEN ISOTOPES
ISOTOPES
LABORATORY EQUIPMENT
LIGHT NUCLEI
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PUMPS
RADIOISOTOPES
RARE GASES
STABLE ISOTOPES
VACUUM PUMPS
YEARS LIVING RADIOISOTOPES
700209* - Fusion Power Plant Technology- Component Development & Materials Testing