SU1393458A1 - Distributor of liquid for heat-mass exchange columns - Google Patents

Abstract

The invention relates to liquid dispensers in heat and mass transfer columns and can be used as contact devices for gas (vapor) - liquid systems. The purpose of the invention is to intensify the process of heat and mass transfer between gas (vapor) and liquid due to uniform distribution of liquid over the cross section of the column at high specific loads on the liquid. The liquid distributor contains a central vertical pipe for supplying a liquid with a horizontal reflective disk under the lower section of the pipe, placed around a central pipe concentrically mounted reflective cylinders with vertical windows and piers, a reflective ring of the same diameter with a reflective disk attached to the lower section of the central pipe The pipes are concentrically mounted with steps upward of a pipe with reflective rings, some of which are attached to the bottom edges of each tube, and the other - to the respective adjacent inner pipes. Additional reflective cylinders with increasing (from bottom to top) diameters and heights with windows and piers are installed around the reflective rings. The outer cylinders are made solid, adjacent tubes are connected by upper ends in the outer tube. The main dimensions of the elements of the distributor, 6 Il. e (L 00 with co 4 CL 00

Description

The invention relates to the design of contact devices for gas systems (vapor) - a liquid intended for the early distribution of liquid over the section of packed columns and columns with plates of the failed type during absorption processes of rectification, gas washing, and can be used in chemical, petrochemical gas and other industries.

The purpose of the invention is i) the tenification of the process of heat and mass transfer due to the distribution of the uniform distribution of liquid over the cross section of the column at high specific loads on the liquid.

On -gr. schematically shows a liquid distributor, longitudinal section; PA figure 2 - section LL in figure 1; on fig.Z - section BB in figure 1; in Fig. A, a section B-B in Fig. 3 in Fig. 3 is a section G-D in Fig. 2; FIG. 6 shows a section DD in FIG. 2

The liquid distributor is installed inside the Cylindrical column 1 and consists of a central vertical pipe 2 for hydraulic operation with a horizontal - reflective ring 3 at the end and a horizontal reflective disk 4 under the pipe, outside the central pipe 2 concentrically mounted up the pipe 3, to the lower edges which DopxFHie are attached to reflective rings 6, and to the corresponding adjacent inner-HIU pipes are attached the lower reflections T) rings 7, around each annular section of reflective rings 3 and disc 4 rings 6 and 7 are reflective elichivayugoghs cylinders 8 have diameters and heights vayuishhs increases from bottom to top with rectangular vertikalnp O ports 9 and 10 and the piers continuous outer cylinder 11 without windows. solid cylinders 11 with inner reflective 1, 1, cylinders 8 form an increase in diameter EI in the bottom of the lower steps, and an outer solid cylinder for the uppermost stage of the largest diameter serves as the body of the column 1. Reflective -8 and continuous 11 cylinders are fixed to each other and to pipes 2 and 3 by radial bolts 12. Under the condition that the liquid is evenly distributed over the cross-section of the column, the ratio of the width of the window

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9 to the width of the pier 1U of each oi-differential cylinder 8 is equal to the ratio of the area of the annular section between the wall of the continuous cylinder 11 and this reflective cylinder 8 to the area of the annular section between this reflective cylinder 8 and the inner adjacent cylinder 8, the width of the windows 9 and the walls 10 of each outer cylinder 8 is larger than the adjacent inner shchindra 8, and the number of windows 9 of the cylinders 8 is equal to prime numbers increasing from the inner to the outer cylindrical 8, to prevent the windows 9 and the walls from coinciding with each other. 10 concentrically arranged cylinders 8 in radial directions for one stage and thereby ensuring uniform distribution of the liquid over the cross section of the column with arbitrary installation of the reflection cylinders 8 with their oKHaMii 9 relative to each other.

Adjacent concentric tubes 5 are fixed between themselves and with tube 2 (not shown) and communicated between each other by the upper open ends in the outer tube 5. The dimensions of the tubes 5 and the central tube 2 are taken so that the areas of the annular sections between the reflective rings of each stage are proportional to the annular the column sections between the solid cylinders 1 1 correspond to the steps to which fluid is supplied from the annular section, and the area of the annular section between the reflective rings 6 and 7 is equal to the area of the annular annular section Between the inner diameter of the outer tube 3 and the outer diameter of the inner tube 3 adjacent to it or the cross section of the central tube.

The liquid distributor operates as follows.

The fluid is supplied to the outer tube and to the tubes 5 and the central tube 2 concentrically arranged in it, passes through annular sections between pipes 5 and through pipe 2 and exits between horizontal reflective rings 6 and 7, as well as between ring 3 and disk 4, in as a result, under the action of forces of speed and force of gravity, height paraboloids of rotation are formed in each step.

which, on their way, meet the reflective shchindry 8 with vertical rectangular windows 9 and walls 10 and solid cylinders 11, and the liquid passes through the windows 9 and reflects from the walls 10 of each reflective cylinder 8 and, finally, from the walls of the continuous cylinder 11 in each step

When fluid flows out of the annular section between the reflective rings 6 and 7 in the form of a paraboloid of rotation in this stage, the greatest amount of fluid passes through the openings 9 of the inner reflective cylinder 8, which passes through the openings 9 successively of the next shotguns 8, and each time the amount of flow passing through c g of the window 9 of the subsequent outer wheel 1:; core 9, less than the amount of space that has passed through the windows 9 with the lexiioro of the inner cylinder 8, by the amount of reflected fluid from the walls of the walls 10.

The technical advantage of the proposed liquid distributor in comparison with the known -: is to provide a more even distribution of the liquid over the cross section of the column by increasing the reflection points of the liquid from the walls of the reflective disks due to the total discharge of the radial flow meter / 11. lsidkos m m: i-:. para Oopoid vrascheni with decreasing mine;: tva otr,;. : i: -: ijit. .X.IA ck1, .. which contributes to 6oj.cc to a complete c.: - tact between gas gas) and g - | d: :: ti and increase effectively 1 and heat and mass exchange between gas (vapor) and liquid in conditions of absorption-desorption, rectification, gas washing and others. Anal (PG nrcirt-cc ::; ,,

Form

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Liquid distributor for heat and mass transfer columns, containing a central vertical pipe for supplying liquid with a horizontal reflective disk under the lower cut of the pipe having a diameter greater than

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pipe diameter and located at a distance from the lower edge of the pipe, placed concentrically mounted reflective cylinders around the central pipe with vertical windows and piers uniformly made in the side walls, the ratio of the width of the window to the width of the pier around the circumference of each cylinder equal to the area of the annular the cross section between the wall of the column and the data of the reflective 1p syndrome to the area of the annular section between this reflective cylinder and the adjacent inner cylinder, the upper edges of the eye The reflective cylinders are located above the central tube's reflective disk, and the lower ones are below the reflective disk, characterized in that, in order to intensify the process of heat and mass transfer due to uniform distribution of the liquid over the cross section of the column at high specific loads on the liquid, it is equipped with a central section attached to the lower section. pipes with reflective ring;;;, with a diameter of equal to the diameter of the reflective disk, concentrically mounted steps up pipes located central tube with reflective rings, some of which are attached to the lower edges of each

1. be a / jri TFc: - to the adjacent internal ii.feH - / vyut: located at a distance,. ...:,: about each other with obra- .-. ivifr-i circular section, coaxial- iv. The steps formed around each section of the section are made up of additional reflective plates made with diameters increasing from the bottom up: in the BCGs and with the reflective windows. ..-; OS In this case, the outer ci-.-Gigu HY are filled with solid, adjacent pipes are interconnected and communicated by the upper ends in the outer pipe, the areas of annular sections between the reflecting rings of each stage are proportional to the annular sections of the column between the continuous cylinders of the corresponding stage.

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Claims (1)

The formula of the invention ^;. Liquid distributor for heat and mass transfer columns, containing gj a central vertical pipe for supplying liquid with a horizontal reflective disk under the lower pipe section, having a diameter larger than the pipe diameter and placed at a distance from the lower pipe edge, concentrically mounted vertical cylinders mounted around the central pipe! windows and piers uniformly made in the side walls, while the ratio of the window width to the width of the piers around the circumference of each cylinder is equal to the ratio of the annular cross-sectional area between the column wall and this reflective cylinder to the annular cross-sectional area between this reflective cylinder and an adjacent inner cylinder, the upper edges of the windows the reflective cylinders are located above the reflective disk of the central pipe, and the lower ones are below the reflective disk, characterized in that, in order to intensify the process, filling and mass exchange due to the uniform distribution of fluid over the cross section of the column at high specific fluid loads, it is equipped with a reflective ring attached to the lower cut of the central pipe, made with a diameter equal to the diameter of the reflective disk, concentrically mounted upwardly arranged pipes located outside the central pipe, with reflective rings , one of which is attached to the lower edges of each a, the others - to an adjacent inner tube: located at a distance of ^g . about each other with a ring ... section, coaxial. ' steps arranged around each annular section, composed by additional reflective cylinders, made with diameters and heights increasing from bottom to top, and with reflective windows. .: · Os - .. yak, while the outer cylinders.. Are solid, adjacent pipes are interconnected and communicated by the upper ends in the outer pipe, the area of the annular sections between the reflective rings of each stage is proportional to the annular sections of the column between the solid cylinders of the corresponding stage.