| 摘要 |
In a liquid processing system, a container includes a liquid and a pressurizing gas which is substantially non-reactive with respect to the liquid and establishes a controlled pressure differential between the interior of the container and its surroundings. A porous conduit, extending between the interior and exterior of the container, is maintained in contact with the liquid. The conduit transports liquid along its length, forming a meniscus of extended surface upon portions of the conduit not submerged in the liquid. The meniscus defines a gas barrier; the conduit nevertheless transports fluid at a selected rate between the container and its surroundings. When employed in a cryogenic system, fluid may be transported in response to heat interchange by the container, the rate depending on the temperature change required. The fluid further may be ejected into an extremely high pressure environment without the use of a power source.
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