SU1248638A1 - Distributor of liquid for mass-exchange apparatus - Google Patents

Description

The invention relates to mass transfer technology, and more specifically to a distribution fluid device, and is intended for use in packed distillation columns, packed absorbers and scrubbers, as well as other apparatuses that require a uniform distribution of the liquid over their section.

The aim of the invention is to eliminate clogging of the holes mechanically. Kim impurities with a large number of power points in a wide range of loads.

FIG. 1 shows a liquid distributor for mass transfer columns, a general view; in fig. 2 - the same, in cross section, perpendicular to the first; .on FIG. 3 - plates, cross section; in fig. 4 shows section A-A in FIG. 3

: The liquid distributor for mass transfer columns consists of individual sections 1 located in the body of column 2. Each section consists of a perforated plate 3 with sides attached to it 4. To the sides v of the upper sections, flow pipes 5 are fixed. The two plates 3 are placed one upon the other by two plates 6 and 7 with holes. The holes in the top plate 6 are offset from the holes on the plate 3 by an equal distance exceeding the diameter of the holes. Between the plates there are sealing elements R (seal) plate 7 is made to crust plate 6 by the amount of offset holes, equipped with guide rods 9, fixed in plate 3 and passing in longitudinal slots x 10 of the middle plate, the major axes of which are located along the offset plane of the holes slabs. At the upper ends of the rods 9, the springs 11 are fastened, exerting pressure on the underlying plates. The middle plate is moved by means of a pneumatic actuator 12, the brush of which is connected with the rod 13, which leaves the packing 14 through the gland seal 14. The rod, with the help of gussets 15 and 16, is connected with the middle plate. The lower section of the liquid distributor is connected to the nipples 17 for installing an equalizer. The fitting 18 serves to supply fluid to one of the sections.

The liquid distributor operates as follows.

five

0

five

The liquid flows through the fitting 18 to one of the sections and flows through the overflow pipes 5 to all the other sections. The middle plates of all sections through the gussets 15 and 16, the rod 13, connected through the gland seal 14 to the pneumatic actuator rod 12, are reciprocated by means of a pneumatic actuator. As a result of this movement in the extreme positions of the plate 7, its apertures coincide alternately or with the apertures of the upper plate 6 or the lower plate 3. In the first case, the liquid fills the apertures of the middle plate, in the second, the liquid from these holes is drunk into the column. The capacity of the distributor is directly proportional to the frequency of movement of the middle plate, its thickness, taking into account the thickness of the anti-friction layer and the diameter of the holes in it. When the liquid level on the lower section exceeds the permissible excess liquid is pumped out through the fitting 19. It is also possible not to remove the excess liquid through the fitting 19, and depending on the level of the liquid to change, the frequency of movement of the middle plate 7.

Air or liquid can be used as a working medium in the drive, de 12. The drive t2 can also be located inside the apparatus, which excludes the use of the gland 14 for sealing the rod 13. I

With equal diameter of all holes

in the middle plates and their uniform. The distribution over the surface of the plates ensures a uniform, regardless of the MO.ot, the distortions of the sections, the distribution of the liquid over the cross section of the apparatus. The diameter of the holes in the plates is chosen so as to ensure the passage through them of possible mechanical impurities,

5 for example, with a diameter of 10-20 mm. With a hole diameter of 20 mm, the maximum number of power points (number of holes) reaches 500-600 per I / M, and with a diameter of 10 mm - 2500 1, / m2.

0

The presence of seals between the plates eliminates the flow of liquid in the zone of their contact. Thus, the fluid that has filled the holes in the middle plate with 7, seal 8 (Fig. 3), flows down only when the holes in the plate 7 coincide with the holes in the bottom plate of the irrigator.

S

five

3,

Making the movable plate with slots in which the guides are made in the form of rods fixed in the bottom plate allows the movable plate to be displaced in the direction of the offset of the holes in the upper plate relative to the bottom so that in the extreme positions

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, 7, 7J

Fig 2

24863.84

the holes in the movable plate are aligned with the holes in the top plate (filling the holes in the movable plate with liquid) or in the lower plate (drainage of the holes in the movable plate). The moving frequency of the movable plate can provide different flow rates.

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and

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nineteen

FIG.

Editor I. Shulla

Compiled by S. Baranova

Tehred M. Khodanich Proofreader G. Reshetnik

Order 4158/6 Circulation 663 Subscription

VNIIGSh of the USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (4)

1. LIQUID DISTRIBUTOR FOR MASS EXCHANGE DEVICES, comprising horizontally arranged plates made with holes offset from each other, one of which is mounted with the possibility of movement relative to the other, characterized in that, in order to eliminate blockages of holes with mechanical impurities with a large number of power points in a wide range of loads, it is equipped with sealing elements located between the plates, the plates are interconnected, the movable plate is made with slots placed in the joints, while larger slots are disposed along an axis offset plane plate holes. 2. The distributor for π. 1, characterized in that the plates are connected by guides made in the form of rods fixed in the bottom plate and placed in the slots S of the movable plate. 3. The dispenser in paragraphs. 1 and 2, characterized in that the bottom plate is equipped with an equalizer. No. 4 · »» QO OE with FIG. /