초록 ▼

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

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.

대표청구항 ▼

[ We claim:] [7.] An apparatus for dividing flow of a primary stream of a mixture of a gas and a liquid over a wide range of flow conditions into a pair of branch streams or pipe arm portions having substantially the same mixture of gas and liquid as said primary stream, which apparatus comprises:a

[ We claim:] [7.] An apparatus for dividing flow of a primary stream of a mixture of a gas and a liquid over a wide range of flow conditions into a pair of branch streams or pipe arm portions having substantially the same mixture of gas and liquid as said primary stream, which apparatus comprises:a pipe tee connector having not less than the same cross-sectional areas in a pipe stem portion and the two pipe arm portions forming said pipe tee connector wherein the pipe tee connector has a larger cross-sectional area in a tee junction with respect to the cross-sectional areas of the pipe stem and pipe arm portions, respectively, whereby the vapor velocity entering the tee junction is reduced to below 20 ft/sec whereby the tee junction diameter is larger than that of an inlet pipe upstream and outlet pipes downstream of the tee junction in combination with a vane member in the pipe stem portion which terminates at an intersection of the pipe stem portion with the tee junction of the pipe tee connector and further in combination with a nozzle in each of the pipe arm portions of the pipe tee connector wherein each of said nozzles is located directly downstream of the tee junction.