DE1526927A1 - Distribution of two-phase mixtures - Google Patents

Description

L. & C-. Steinmüller GmbH 527 Gummersbach, April 22nd, 1966 ■ -.-. ■ Pa 6620

See / Bo

Patent application

Specimen copy

May not be changed

"Distribution of two-phase devices".

The invention relates to a device for uniform Distribution of a two-phase mixture, e.g. a gas-liquid mixture on several outgoing pipes and maintaining an even ratio of the mixture components in the outgoing pipes.

The distribution of two-phase mixtures, e.g. gas-liquid mixtures from a distributor to a large number of outgoing pipes, in such a way that in all outlets the the same ratio of the phase proportions is achieved is very difficult to achieve. That through the supply lines The mixture reaching the distributor not only has different proportions in the individual inflows, but also its state the outlets also depends on the clear manifold diameters, of the entry speeds .in deii Manifold, from the distances between incoming and outgoing pipes and the angle they form with each other, the angle of entry, the distances from the outlets etc. from. In addition, segregation takes place in the distributor by the effect of gravity.

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Such distribution problems occur in particular with the _t pipe registers of steam boilers. So far, the pipes have been allowed to exit from the bores of the distributor, or attempts have been made to achieve as uniform a distribution as possible by arranging the supply pipes, in particular by varying their entry angles and distances. Pipe sockets have also been proposed as an extension of the pipes into the interior of the distributor. However, the results were unsatisfactory.

The object of the invention is to create a device in which not only the same weights as possible in the unit of time, but also equal proportions of volume in each outgoing one Pipe are guaranteed.

This object is achieved in that the vertical or obliquely upward discharge from the distributor, the outlets to the lower edge of the supply line or at least to the middle of the distributor, in the case of the vertical one or sloping discharge down to the top edge of the branch of the pipes reaching into the distributor out and provided with round openings or such additional cross-section near the wall of the distributor, rs, through which the specifically lighter portion of the mixture in the upward discharge and the specifically heavier one Share flows downwards during the discharge, during the other proportion by those arranged in the horizontal plane Opening cross-sections of the nozzle leaves the distributor.

It is also proposed that the opening cross-section of the

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Narrowing outlets compared to the cylindrical shape or constricting like a venturi tube.

In the further development of the invention, it is also proposed that in the case of several rows at an angle to the vertical attached outlets the distance between the passages in the cylindrical Part of these outlets from the horizontal plane formed by the opening edges are the same for all nozzles to keep big.

Instead of one opening for each outlet pipe, several openings on a surface line below one another or on the Perimeter of the catch pipes should be distributed. In addition, instead of the round opening, widening or narrowing slits, the edges of which can not only run straight, but also follow a curve.

Due to the separate introduction of the heavy and the light part of the mixture in the common outlet a uniform composition is achieved, regardless of the direction in which the mixture is discharged from the distributor. Another advantage arises the possibility of .the collector or distributor compared to previous versions to reduce the size of material and To save space.

In Figures 1 to 3 are exemplary embodiments of the invention training device shown, wherein

Fig. 1 is a longitudinal section through the distributor and "

the discharge pipes, ^ ₁

Z Fig. 2 is a cross section,

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Fig. 3 shows a cross section through the distributor at im

Angle to each other outgoing pipes and Fig. K shows a cross section with discharge downwards.

The phase mixture enters the distributor 1 through the feed 2 and is distributed among disordered vortex formations and phase separation within the manifold. Due to the higher pressure prevailing in the distributor 1

"The liquid phase 3 through the inlet opening k of the vertically upwardly leading outlet pipes 5, which is in a horizontal plane, or through the inlets 6 of the obliquely upwardly leading pipes 7 9 through the individual or multiple openings 12 and 13 which are circular in height and around the circumference and are equally spaced from the horizontal inlet edges 10 and 11 of these tubes

) or other cross-section. The lighter portion, located above the heavier phase, passes through openings of round or other cross-section 16 made close to the inner wall Ik of the distributor individually or in large numbers along the length or on the circumference of the piece 15 of the outlets 5 and 7 reaching into the distributor Discharge pipes 5 and 7 a.

Entry takes place when it is discharged downwards (8, 9) the light phase portion in the outlet pipe S and 9 through those below the through the edges of the inlet openings

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formed horizontal plane at the same distance from them arranged inlet openings IO and 11.

When discharging upwards (5, 7) is the inlet cross-section 4 and 6 guided up to about the level of the lower edge 17 of the supply pipes 2, while after the discharge below the corresponding inlet cross-section 10 and 11 extends approximately to the upper edge 18 of the supply pipes 2.

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Claims (6)

6 - 4/22/66 Pa 6620 Sch / Bo Patent claims Specimen copy May not be changed 1.) Device for the even distribution of a two-phase device, z.D. a gas-liquid mixture, on several outgoing pipes and to maintain an even Ratio of the mixture components in the outgoing pipes, characterized in ψ that with the vertical (5) and / or obliquely upward (7) discharge from the distributor (l) the outlet nozzle (15) up to the area between the center of the distributor and the sole height (17) of the feed (2) , with the vertical (8) or inclined (9) discharge down to the. The area between the center of the distributor and the apex (18) of the feed (2) extend into the distributor and the nozzles of the discharge lines (15) with openings (1.6) that extend into the distributor (1) are round or any but identical . Cross-section and the same shape close to the inner circumference (lh) of the distributor (l), through which the specifically lighter portion of the mixture when discharged upwards, the specifically heavier portion when discharged downwards and the other portion through the in inlet cross-sections arranged in the horizontal plane (k and 6 or 10 and 11) the nozzle flows off, 2.) Distribution device according to claim 1, characterized know that the openings of the Discharge nozzle (15) constricted in the form of a constriction q which are designed in the manner of a Venturi tube, ^909851/0106 -. ■ ■■ «- 7 * - ■ '' 3.) Distribution device according to claims 1 and 2, characterized in that it en η ζ ei ch η et that when ^{leaving v} exits at an angle to the vertical (7, 9} from the distributor, the vertical distance of the openings (IC) in the outlets of the inlet cross-sections (k uf or 10 α. 11-) lying in a BorizAntalehene are one below the other and as large as that of the vertical outlets. (5, R) · k * ~) Distribution device according to claims 1 to 3, characterized geke η η I show η et that several f openings (If-) with the same distances in all ■ Abeängsstutzen (15) distributed over the height (15) and / or on Scope of the outlets are appropriate. ■ 5 ..) Distribution device according to claims 1 to h, characterized in that instead of the round openings (16) slots with straight edges or with edges of any shape are arranged. 6.) Distribution device according to claims 1 to 5, thereby g e k e "η η ζ e i c h η e t that the" Flow resistances of the openings, which are perpendicular or inclined to the nozzle axis - and the passage cross-sections, which are attached in the jacket part of the nozzle, by the cross-section dimensioning and training accordingly the proportional phase quantities are coordinated with one another. .BAD ORIGINAL 9 0 9851/0106 Blank page