Agitating – Stationary deflector in flow-through mixing chamber – Curved deflector surface
Patent
1996-12-13
1998-09-15
Soohoo, Tony G.
Agitating
Stationary deflector in flow-through mixing chamber
Curved deflector surface
3661651, 3661652, B01F 506
Patent
active
058069763
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a device for mixing at least a first and a second fluid virtually instantaneously. It notably allows a uniform mixture to be obtained.
The present invention advantageously applies for mixing quickly and virtually instantaneously several fluids likely to react with each other.
Reactions likely to occur between various fluids when they mix can generate corrosive or incrusting actions on an element which they are in contact with, for example a wall of a pipe in which they circulate.
The term "action" is defined in the text hereafter as the power or the ability of a mixture to cause depositions and/or to corrode an element, for example an installation in which the mixture circulates.
It is preferable and even, in some cases, essential to have a mixing area as small-sized as possible and a mixing time as short as possible in order to confine the reactions likely to occur between the fluids, such as possible physico-chemical reactions.
An advantageous application of the present device consists in using it as a laboratory apparatus associated, for example, with an apparatus for studying the evolution kinetics of a mixture of incompatible fluids.
The invention can notably be applied within the scope of petroleum production where it is usual to find a formation water associated with oil, or one or several injection waters used for enhanced recovery of the petroleum effluent. Contact between these two waters can cause physico-chemical reactions, such as nucleation, germination and growth leading to the formation of crystals or deposits that may eventually block the pipes in which the mixtures circulate. It is therefore important to study the kinetics of formation and evolution of such crystals in order to know and to foresee the resulting problems that often require costly production facility repairs and shutdowns.
In order not to be affected by interaction problems before the fluids are fed into the suitable analysis device, the latter must comprise a fluid mixing device or mixer allowing a mixture to be obtained virtually instantaneously. The time when physico-chemical reactions can start between different fluids can thus be precisely determined. Possible errors due to physico-chemical phenomena occurring prior to the entry of the fluids or of the mixture of fluids in the analysis device can thus be avoided.
In the following description, the expression "incompatible fluids or waters" relates to fluids whose mixing or bringing together leads to physical or chemical reactions such as nucleation, germination and growth of crystals.
BACKGROUND OF THE INVENTION
There are well-known devices for mixing various fluids, comprising a first tube in which a first fluid circulates and a second tube surrounding the first tube, concentric with respect to the latter, in which a second fluid circulates. Turbulence phenomena generated by the circulating motion of the fluids can lead to the formation of seeds that move up along the tubes and become incrusted for example in the inner wall of the outer tube. The deposits produced on the walls eventually block the mixer.
There are also well-known mixers referred to as "countercurrent mixers" working according to the principle as follows: the fluids to be mixed circulate in opposite directions and meet in an area referred to as mixing area. However, at the level of the mixing area, deposits may form on the walls of the mixing area and block the pipes in which the fluids circulate. Such mixers are not suitable for mixing incompatible fluids.
SUMMARY OF THE INVENTION
The device according to the invention allows the above-mentioned drawbacks to be overcome and notably to prevent and/or to minimize the formation of deposits by performing a fast and virtually instantaneous mixing of the fluids. Furthermore, it allows a uniform mixture of the fluids to be achieved by mixing them in a limited area.
Instantaneous and fast mixing of the two waters allows to know the precise time of the formation of the mixture and thus not to be affe
REFERENCES:
patent: 835619 (1906-11-01), Isaacs et al.
patent: 1743738 (1930-01-01), Travis
patent: 2306962 (1942-12-01), Kropp
patent: 2784948 (1957-03-01), Pahl et al.
patent: 3251550 (1966-05-01), Lippert et al.
patent: 3682447 (1972-08-01), Zucker et al.
patent: 3697051 (1972-10-01), Lachman et al.
patent: 4108732 (1978-08-01), Nuttall, Jr.
patent: 4197092 (1980-04-01), Bretz
patent: 4270576 (1981-06-01), Takeda et al.
Institut Francais du Pe'trole
Soohoo Tony G.
LandOfFree
high-speed fluid mixing device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with high-speed fluid mixing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and high-speed fluid mixing device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-80605