DE7932301U1 - DEVICE FOR SEPARATING TWO IMMiscible LIQUID PHASES OF DIFFERENT DENSITY - Google Patents

Description

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The invention relates to a köritiriüierlicher Stifö " murig separator for the separation of two emulsified, immiscible liquid phases of different " Density / this separator has a decanting chamber / which is provided with a feed inlet for the drawing liquid / which is between with respect to the inclined walls flows in the feed direction *

A separator of this type is described in the US patent specification I 920 468 *

The object of the invention is in particular to provide a separator for the separation of water to be discarded / for example industrial wastewater or ballast water / to create hydrocarbons contained in the resolution A 393 of the OJiC.li (Organization Maritime Consultative Intergouvernemental) of November 14, 1977, which states that the content of hydrocarbons in waste water from engine rooms and tanks must not exceed 100 ppm. The one based on the principle of natural decantation or deposition Due to the density difference based separator according to the invention is characterized in that the Walls form two superimposed deflecting elements and that the feed inlet is opposite the lower deflecting element is located.

The deflecting elements preferably adjoin two opposite walls of the chambers and form a chicane i with them

According to a further preferred embodiment of the Invention is the apex of the lower deflector essentially at the same height as the foot of the upper deflector.

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Implementations of the invention are set out below in connection with the attached drawing "besöhfleben * On this one is

Fig * 1 shows a Pfinzipdafstellung the Abscheidefs according to the Invention/

Fig * 2 is a vertical section of an aluminum guide s shape of the separator according to the finding /

Fig * 3 is a Hofizontal section of the Abscheidefs of Fig * 2 in the plane ίϊί-ϊϊϊ of Fig * 2, and

FIG. 4 shows a perspective view of the separator from FIG. 2 limited to certain elements.

The separator shown schematically in Fig. 1 has an enclosure 1, in the interior of which an inlet chamber 2, a transfer chamber 3 and an outlet chamber 4 are defined.

The Eintfittkammef 2 is with two deflection elements 5, 6. which form between them a space 7 into which an inlet 8 opens, * through which the liquid to be processed flows into the separator is fed.

The deflection elements are with respect to the feed direction walls inclined in the opposite direction to the liquid and form with this feed direction 9 (assumed horizontal) opposite or opposite acute angles a and b, which can be the same or different, are preferably between 45 ° and 20 °, in particular between 35 ° and 25 °, optimally are in the range of 30 °.

Preferably, the foot 10 of the upper deflector is located 5 substantially at the level of the apex 11 of the lower one

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The liquid to be processed is for example a Baliäst water (sdhwere phase) / that a coal hydrogen (light phase) contains / the; before the water enters Sea is released / must be separated / to del: content of hydrocarbons in the water at a tarrying port Value is decreased *

Most of the separation happens in the

iö step chamber 2 by decanting thanks to the Ümlenkeinirichtüng or chicane *

The deflecting elements 5 and 6 and the walls 12 and 13 d of the chamber, on which they are adjacent, in fact form one Umlenkeinrichtung or chicane, which has an upper limit " step section 15, through which the separated light phase is withdrawn upwards with respect to the entry chamber is, and a lower exit portion 15 through which the heavy phase still containing an emulsion of the light phase is withdrawn downwards.

The light phase that collects at the top of Kainmer 2, can be withdrawn by any suitable means (shown schematically by arrow 16) while the heavy phase (the trajectory of which is shown schematically by the arrow) is passed on into the transfer chamber 3 will.

The chamber 3 is lower than the entry chamber and is provided with a device that allows coalescence or the droplet growth of the emulsion still in the heavy phase favors existing light phase, this facility for example simply by a System of lamellas or sheets 18 is formed, the axes of which are horizontal, but which are themselves horizontal or inclined (seen in a transverse plane).

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These slats are at a small distance from one another, for example with a distance of less than 10 mm, but which is still reasonable The flow rate of the liquid is sufficient. For example, there is a gap of 7 mm for the passage of 500 l / h suitable.

The purpose of the lamellas is to multiply the contact area with the liquid and to increase the decanting distance of gj

To diminish drops of the light phase. These increase k

of course and leaeii to the immediately above *

seated slat. They grow on the surface of the i

Lamella along that once it is sufficiently wet, [are the light phase in the form of large drops Public swimming [at the output, the decentralized in the output stage without difficulties!, Kantieren.

The output stage or output chamber 4 is in the upper Part with an outlet 19 for the withdrawal of the light phase and in the lower part with an outlet 20 for the Deduction of the heavy phase provided. Preferably one prevents between the growth chamber 3 and the outlet 20 Arranged diaphragm 21 that the peeling takes place directly in the extension of the lamellas, and it also causes a Reversal of the vertical speed which is favorable for decanting.

Fig. 1 is only a schematic diagram for the case of a prismatic apparatus with rectangular chambers. The FIGS. 2 to 4 refer to a cylindrical apparatus.

The in FIGS. 2 to 4 shown cylindrical embodiment shows its own peculiarities.

The apparatus comprises two vertical cylindrical walls 22, 23 which enclose an annular space between them.

The inlet 26 for the liquid to be treated opens into the upper part of this lUngraum under "sinew |

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Collar 24 adjoining the outer cylindrical wall 22, and in front of a collar 25 which adjoins the inner cylindrical wall 23. These collars that are frustoconical (see FIG. 4) play the role of the deflecting element 5 or the deflecting element 6 of the embodiment of FIG. 1.

The heavy phase rises on one side of a vertical partition wall 27 into a lower zone of the Ringraui.is and then turns horizontally to the other side of that wall, making a set of horizontal slats 28, which are formed by half-disks and the role of the lamellae 18 of the embodiment of FIG. 1 to play. When the liquid arrives on the other side of the partition wall 27, it goes into a pipe 29 above, the entrance of which is in the lower part of the annulus. This progression of the liquid from the one Side of the partition wall 27 on the other is shown schematically by the curved line 30 in FIG. 3.

The pipeline opens into the interior of the space 31 circumscribed by the inner wall 23, where the heavy phase is withdrawn via a lower outlet 32, while the light phase is withdrawn via an upper outlet 33. The space 31 forms the exit chamber.

In addition, the light phase that has been separated by the set of collars 24, 25 is passed through a Outlet 34 withdrawn at the apex of the annulus. !

The outlets 33, 34 for the light phase can under the control of valves 35, 36 are available, which in turn are controlled by level sensors 37, 38.

In Fig. 4 only the walls 22, 23, the collar 24, 25, a part of the slats 28, the vertical partition wall 27 and the other vertical partition wall 39, on which the from the Partition wall 27 outgoing collar ends, shown.

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It should be noted that the growth chamber has a special particularly simple conception and does not show the disadvantages of cartridge coalescence devices. this will possible due to the fact that the growth chamber only has to prepare a mixture that only remains of Contains hydrocarbons, since most of the hydrocarbons have already been separated in the decanting chamber has been.

For example, an amount of 25 percent by weight hydrocarbons in water at the inlet of the The device according to the invention is fed, after passing through the apparatus, a heavy phase (water) which Contains less than 50 ppm (weight) hydrocarbons.

If this mixture were to be fed directly into the growth chamber, the function would be blocked this chamber.

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Claims (9)

Ϊ'.ΗΒ J, MS * «Si 'Kt!: - 1A N PATENTANWÄLTE DR, ROLF E, WILHELMS DR, HELMUT KILIAN GEIBELSTPASSE 6 ΘΟΟΟ MUNICH ΘΟ TELEPHONE (O 89) 47 10 73 · TELEX 52 34 07 Cwjtp-d) TELEGRAMS OF PATRANS MUNICH G 921 SOFRANCE SA Limoges - France Device for separating two immiscible liquid phases of different densities Priority: November 17, 1979 - France - 78 32 474 CLAIMS 1. Device for separating two immiscible liquid phases of different densities, in particular for Separation of hydrocarbons contained in the water to be discarded, with a decanting chamber with a feed inlet for the liquid to be treated is provided, which ends between walls arranged at an angle to the feed direction, characterized in that that these walls have two deflectors lying one on top of the other I «I I Il Il SOFRANGE S.A. ■■ · ■■■ '■■ \ ■' * ϊ; i ■ ■ 11 I. IM · · ■ • f · f Il Q 921 elements and that the feed inlet (8, 26) is opposite the lower deflector. 2. Device according to claim 1, characterized in that g e k e η η, that the deflectors accordingly two opposing walls (12, 13; 22, 23) of the Kamtier (2) adjoin and form with these a deflection device which has a lower exit (15) and an upper exit (14).
10 3. Apparatus according to claim 1 or 2, characterized in that for the two one above the other arranged deflector of the apex (11) of the lower deflector substantially at the same level as the Foot (10) of the upper deflector is. 4. Device according to one of claims 1 to 3, characterized in that the deflecting elements with respect to the feed direction of the liquid are oppositely inclined walls and with this Direction form the same or different oppositely oriented acute angles between 45 ° and 20 °. 5. Apparatus according to claim 4, characterized in that g e k e η η, that the angles formed are between and 25 °. 6. Apparatus according to claim 5, characterized in that the angles formed are around 30 °. 30th 7. Device according to one of claims 1 to 6, characterized in that the deflecting elements (S / 6) are even, β · Ai S Ill U «III I I 14 1 lit ι ι ι 111 nt I Il I Il 8 .. VörriöhtUfig flash one of the Änspifüöhe 1 big 6 / gekenn geiöhne ti- / that the Äbiefikeiemenfee tieilke ^ elstHimpf shaped Kifägen (24, 2S) äiftd » 9 4 device fiädh one of claims 1 to 8, wherein a coalescence comb is provided / which receives the heavy phase from the 'decanting chamber and a coalescence device for the heavy phase still accompanied light phase contains / characterized / that the coalescence device by lamellae (18 * 28) formed with a horizontal axis 10; Device according to claim 9> characterized/ that the Koaieszenzeinrichtüng by lamellae (28) is formed in the form of disc parts * 11 »Device according to claim 9 or 10, characterized characterized / that it has an exit chamber (4, 31) which removes the liquid from the Koales- | zenzkammer (3) receives. I. 12 * Device according to claim 11, characterized in that \ indicates / that the exit chamber (31) | in a | surrounded by a cylindrical wall (23) Space is arranged, and that this cylindrical wall of | a second cylindrical wall (22) is surrounded, with | which it forms an annular space, the upper part of which is the | Dekantierkanuner and its lower part the growth | chamber forms, these two chambers by verti- * kale partition walls (27/39) are limited ,