Fluid handling – Systems
Patent
1995-03-22
1998-09-22
Verdier, Christopher
Fluid handling
Systems
137 1, F16L 4102
Patent
active
058100326
ABSTRACT:
A method and apparatus is disclosed for splitting two-phase liquid-gas flow (e.g., air-water, hydrocarbon gas-condensate, or wet steam) at an impacting pipe-tee junction in a fluid distribution network to maintain constant ratios of liquid mass flow rate to gas (or vapor) mass flow rate entering and exiting the tee junction. Specific mechanical modification of normal impacting tees has been found to significantly increase the range of vapor-phase split ratio for which equal vapor-liquid split ratios (or quality) can be achieved and maintained. In one embodiment, a pre-separator vane is inserted in the entrance arm of the impacting tee. In a second embodiment, nozzles are installed in the exit arms of the impacting tee. In a third embodiment, the impacting tee diameter is increased above that of the surrounding piping leading into and away from the tee junction such that the vapor phase velocity entering the tee junction is less than or equal to 20 ft/sec. In another embodiment, the impacting tee is modified with a combination of two or more of the methods described above.
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Griston Suzanne
Hong Ki Choong
Chevron U.S.A. Inc.
Verdier Christopher
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