Gas burst injection valve

摘要

Valve assemblies are described that provide bursts of gas between fluids to furnish separation between the fluids. A valve assembly includes a first valve member having ports configured to connect to an external loop, an output, and a vent, and ports configured to receive a first fluid, a second fluid, and a pressurized gas. The valve assembly further includes a second valve member coupled adjacent the first valve member having channels configured to connect the external loop to the second fluid for charging the external loop with the second fluid, and to connect the external loop to the output for supplying the second fluid from the external loop to the output. The second valve member also has one or more channels for receiving a burst of the pressurized gas via a port of the first valve member and supplying the pressurized gas to the output and/or to the external loop.

主权项

1. A valve assembly comprising:
a first valve member having a first plurality of ports configured to connect to an external loop, an output, and a vent and a second plurality of ports configured to receive a first fluid, a second fluid, and a pressurized gas; and a second valve member coupled adjacent the first valve member, the second valve member having a plurality of channels configured to connect the external loop to the second fluid in a first orientation for charging the external loop with the second fluid and to connect the external loop to the output in a second orientation for supplying the second fluid from the external loop to the output, and a channel configured to connect to the pressurized gas in at least one of the first orientation or the second orientation for receiving a portion of the pressurized gas and to connect to at least one of the external loop or the output in a third orientation between the first orientation and the second orientation for supplying the portion of the pressurized gas to the at least one of the external loop or the output.