Agitating – Stationary deflector in flow-through mixing chamber – Plate or block being apertured – notched – or truncated in shape
Patent
1996-03-11
1999-10-26
Cooley, Charles E.
Agitating
Stationary deflector in flow-through mixing chamber
Plate or block being apertured, notched, or truncated in shape
1376253, 138 46, 251207, B01F 506
Patent
active
059716045
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
This invention relates to a mixer for mixing the components of a fluid flow in a pipe connection, in particular a multi-phase flow as e.g. fluids produced from an oil or gas well, comprising a housing adapted to be inserted in the pipe connection and to have the fluid flow running therethrough, whereby the housing comprises an inlet and an outlet opening respectively.
SUMMARY OF THE INVENTION
The invention has primarily been developed in connection with measurement of multi-phase mass flow, whereby the components can be e.g. oil, water and gas. By multi-phase flow there is here also meant cases in which only two phases are concerned, e.g. a liquid and a gas, or even when there is question of two liquids in one phase being conducted through the same pipe or the like. It will be realized however, that the mixer to be described in the following description, may also have other practical uses than in connection with mass flow measurement. Moreover when pipe connections are referred to here, this comprises both quite regular pipes connected to the input and output sides respectively of the mixer, and pipes or connections that can be more or less integrated into other equipment or devices, e.g. valves, pumps and so forth.
A mixer as stated in the introductory paragraph above, according to this invention has novel a specific features comprising in the first place that in the housing there is provided at least one moveable regulating element with wall portions associated with at least a downstream side of the housing and provided with a number of through-going flow channels, each of which has a substantially smaller cross-sectional area than the flow cross-sectional area at the inlet and outlet opening respectively, and that the regulating element is adapted to be moved in relation to the housing.
According to the fundamental solution stated above, the invention makes possible two main aspects, of which one aspect in the principle is bases on a rotational symmetry and mutual displacement of the regulating elements primarily by a rotary movement thereof. Another main aspect is directed to a basic planar arrangement of one or more regulating elements, whereby said movement thereof takes place by translational movement. The invention also comprises a measurement apparatus for mass flow as mentioned above, and the apparatus is based on a combination with the mixer described. A particular embodiment of the mixer according to the invention is intended for use in a freezing plant, heat pump system or the like as a gas-liquid distributor in association with an evaporator.
In the claims there are also recited additional novel and specific features related to both the mixer and the measurement apparatus.
The mixer according to the invention involves advantages inter alia by making possible control, either discretely by using only one or possibly several regulating elements, or continuously so that at any time it can be adjusted to the most favorable regulating position, with a resulting favorable degree of opening. This means that the no-slip condition to a highest possible degree can be fulfilled over a wide range of flow velocities. According to an embodiment the mixer can be set in a particular position (pigging position) that makes it possible to run a pipe pig therethrough. Moreover the mixer can be so designed that it is possible to mount it at any orientation being convenient in practice.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following description the invention shall be explained more closely with reference to the drawings, in which:
FIG. 1 shows an example of a first embodiment of the mixer according to the invention, as seen in axial longitudinal section normally to a common axis of rotation in the mixer,
FIG. 2 shows the exemplary embodiment in FIG. 1, here also in axial longitudinal section, but coincident with said common axis of rotation,
FIG. 3 shows a cross section of the mixer in FIG. 1 through the common axis of rotation, and
FIG. 4 somewhat si
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Linga Harald
Onsrud Gisle
Sagli Jan Richard
Cooley Charles E.
Sinvent A/S
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