COOLING OF CRYOGENIC METERS SENSING REVERSE FLOW

摘要

Cooling of a meter by liquid flowing in a flow that is reverse from dispensing flow is described. A plurality of tubes is configured to transport a plurality of fluids comprising a first fluid and a second fluid. Dispense valves attached to corresponding tubes are configured to open when the first fluid is dispensed from a pump to a first outlet. Recirculation valves attached to respective tubes are configured to open when the second fluid is transported from the pump to a second outlet. A meter attached to a tube of the plurality of tubes is configured to measure properties of a fluid when the fluid flows through the tube, wherein the fluid is one of the first fluid and the second fluid. The meter is configured to sense reverse flow when the second fluid flows from the outlet section to the inlet section.

主权项

1. A system comprising:
a plurality of tubes configured to transport a plurality of fluids comprising a first fluid and a second fluid; a first dispense valve and a second dispense valve that are attached to corresponding tubes, the first dispense valve and the second dispense valve configured to open when the first fluid is dispensed from a pump to a first outlet; a first recirculation valve and a second recirculation valve that are attached to respective tubes, the first recirculation valve and the second recirculation valve configured to open when the second fluid is transported from the pump to a second outlet; and a meter attached to a tube of the plurality of tubes that has an inlet section and an outlet section, the meter configured to measure properties of a fluid when the fluid flows through the tube, the fluid being one of the first fluid and the second fluid, the meter configured to sense reverse flow when the second fluid flows from the outlet section to the inlet section.