Apparatus and method for excluding gas from a liquid
- (Bellaire, TX)
The present invention is directed to an apparatus and method for preventing diffusion of a gas under high pressure into the bulk of a liquid filling a substantially closed chamber. This apparatus and method is particularly useful in connection with test devices for testing fluid characteristics under harsh conditions of extremely high pressure and high temperature. These devices typically pressurize the liquid by placing the liquid in pressure and fluid communication with a high pressure inert gas. The apparatus and method of the present invention prevent diffusion of the pressurizing gas into the bulk of the test liquid by decreasing the chamber volume at a rate sufficient to maintain the bulk of the liquid free of absorbed or dissolved gas by expelling that portion of the liquid which is contaminated by the pressurizing gas.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- DOE Contract Number:
- AC04
- Assignee:
- NL Industries, Inc. (New York, NY)
- Patent Number(s):
- US 4531952
- OSTI ID:
- 865530
- Country of Publication:
- United States
- Language:
- English
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method
excluding
gas
liquid
directed
preventing
diffusion
pressure
bulk
filling
substantially
closed
chamber
particularly
useful
connection
devices
testing
fluid
characteristics
harsh
conditions
extremely
temperature
typically
pressurize
placing
communication
inert
prevent
pressurizing
decreasing
volume
rate
sufficient
maintain
free
absorbed
dissolved
expelling
portion
contaminated
rate sufficient
closed chamber
particularly useful
inert gas
fluid communication
substantially closed
liquid filling
substantially close
dissolved gas
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