Fluid sprinkling – spraying – and diffusing – Distributor having overflow discharge – Escape to fluid conveying current
Reexamination Certificate
1999-08-03
2001-01-16
Morris, Lesley D. (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Distributor having overflow discharge
Escape to fluid conveying current
C261S097000
Reexamination Certificate
active
06173905
ABSTRACT:
DESCRIPTION
The invention relates to a dispersion device for a liquid distributor for a trickling of mass and/or heat transfer systems, in particular packing elements for structured or random packing arranged in columns or towers, which has a central element which can be inserted in an outlet opening of the liquid distributor and has, in its section protruding in its inserted state into the interior space of the liquid distributor, several inlet openings through which the liquid being contained in the liquid distributor can enter the interior of the central element.
Such a dispersion device for a liquid distributor is known. In this case, it is provided that the central element of the dispersion device is designed as outlet tube which is welded in the pertinent outlet opening of the liquid distributor. Each outlet tube has borings, which are positioned a few centimeters above the bottom of the liquid distributor, through which the liquid can flow from the interior of the liquid distributor into the outlet tube due to the effect of the gravitation. Each outlet tube of the liquid distributor opens in a pot arranged outside the liquid distributor. At the bottom edge of the pot wall, fingers are connected with or integrally attached to the pot wall, which are curved outwards. In the pot wall, above the fingers, openings are provided through which the liquid, having flown out from the liquid distributor and being held in the pot, can emerge and flow to the fingers in order to supply the to-be-fractioned liquid to the packing elements for random or structured packing contained in the mass and/or heat transfer column.
The known dispersion device for a liquid distributor as well as a liquid distributor using this dispersion device have the disadvantage that the design of the dispersion device described above and thus of the liquid distributor is extremely expensive and therefore uneconomical.
It is therefore the object of the invention to further develop a dispersion device of the type mentioned at the beginning so that a simple and cost efficient design is provided.
According to the invention, this problem is solved in that the central element is of a tube-shaped design, that in the interior space of the tube-shaped central element of the dispersion device one or several discharge elements are arranged, each having an upper channel section and a lower trickle section, the upper channel sections of the discharge elements divide the interior space of the tube-shaped central element of the dispersion device into a corresponding number of discharge channels into which the liquid can enter through the inlet openings arranged in the wall of the central element, and the lower trickle sections of the discharge elements, protruding from the central element, form finger elements which point away from an longitudinal axis of the central element and from which the liquid which is contained in the liquid distributor and entering the discharge channels of the central element through the inlet openings of the central element of the dispersion device, can trickle on the mass and/or heat transfer system.
By means of the measures according to the invention, a dispersion device, particularly suited for a trough distributor, is provided in an advantageous way for the trickling of mass and/or heat transfer systems, in particular columns and towers, which is distinguished by its simple and hence cost efficient design: To draw off the liquid from the liquid distributor as well as to distribute the liquid onto the packing elements of the mass and/or heat transfer columns, is no longer necessary—as in the case of the known liquid distributors using known dispersion devices—to employ a dispersion device consisting of two separate components, namely of a discharge tube and a pot separated physically from it and being arranged outside the liquid distributor, for the installation of which in the liquid distributor the discharge tube has first to be inserted tightly in the outlet opening of the known liquid distributor, then the pot with the thereon formed discharge fingers has to be pushed over the lower part of the tube protruding from the liquid distributor and afterwards the pot has to be welded to the bottom of the liquid distributor.
On the contrary, the dispersion device designed according to the invention is in an advantageous way cost efficient to produce due to its relatively simple design and furthermore can be installed in the liquid distributor in a single operation. The discharge elements which are arranged inside the tube-shaped central element and which form the discharge channels and, at the same time, the discharge fingers represent relatively simple and therefore cost efficient to produce components which can be preassembled into a discharge element unit and therefore can be inserted easily in the tube-shaped central element of the dispersion device for a liquid distributor and installed there. The dispersion device designed in such an inventive way, therefore can be inserted particularly easy in the outlet opening of the liquid distributor.
An advantageous further development of the invention provides that the central element has an outwards protruding stop element which, when the dispersion device is inserted in the liquid distributor, forms a stop face. This measure brings about that an easy sealing of the outlet opening, accommodating the inventive dispersion device, is ensured since the stop element, preferably a flange, having a larger diameter as the central element, easily can be connected mechanically with the liquid distributor. Furthermore, the stop element of the central element brings forth that, in an advantageous way, its exact positioning in the inlet openings of the central element is achieved.
Other advantageous further developments of the invention are the subject-matter of the dependent claims.
REFERENCES:
patent: 3006623 (1961-10-01), Ross et al.
patent: 4267978 (1981-05-01), Manteufel
patent: 4444696 (1984-04-01), Harper et al.
patent: 4476069 (1984-10-01), Harper et al.
patent: 4557877 (1985-12-01), Hofstetter
patent: 4776989 (1988-10-01), Haper et al.
patent: 4803350 (1989-02-01), Robbins et al.
patent: 5269465 (1993-12-01), Zich et al.
Morris Lesley D.
Nguyen Dinh Q.
Orum & Roth
Raschig GmbH
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