SU1445768A2 - Distributor of liquid in column - Google Patents

Abstract

The invention relates to the design of contact devices for gas (vapor) - liquid systems intended to evenly distribute liquid over the cross section of packed columns and columns with plates of the failed type during absorption, rectification, gas flushing, and can be used in chemical, petrochemical, gas and other areas of industry and allows to intensify the process of heat and mass transfer due to uniform distribution of the fluid over the cross section of the column. The liquid distributor in the column is made in the form of a central vertical pipe for supplying liquid with a horizontal reflective disk, spaced from the lower edge of the pipe at a distance for the passage of liquid, reflective cylinders concentrically arranged around the pipe with vertical rectangular windows and walls in the form of multiple angles or grooves oriented vertices or convexes to the periphery, the ratio of the width of the window to the width of the pier along the circumference of each section is equal to the ratio of the area of the annular The sections between the walls of the column and this cylinder to the annular area between this cylinder and the adjacent internal cylinder, the upper edges of the windows of the reflective cylinders are located above the reflecting disk, and the lower edges of the windows are located below the reflective disk, while the width of the corners or grooves is equal to the width the walls of each reflective cylinder. 5 il. i (L 4ib: la ae

Description

14)

The invention relates to the design of contact devices for gas (vapor) - liquid systems intended to evenly distribute liquid over the cross section of packed columns and columns with plates of the failed type during absorption, rectification, and gas washing processes. - chemical, gas and other industries of industry and. is an improvement on the device auth. St. No. 1247067,

The purpose of the invention is to intensify the process of heat and mass transfer due to the uniform distribution of the liquid over the cross section of the column,

FIG. 1 shows schematically a liquid distributor in a column; in fig. 2 section A-A in FIG. 1; in fig. 3 shows a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. 3; in fig. 5 is a section of the G-D in FIG. 3. The liquid distributor in the column is installed inside column 1, consists of a central vertical pipe 2 for supplying a liquid with a horizontal reflective disk 3 having a diameter greater than the diameter of pipe 2 and spaced from the lower edge of the pipe 2j are concentrically arranged around the pipe 2 of the reflective cylinders 4 with vertical windows 5 uniformly formed in the side walls of the cylinders 4, and the walls between them in the form of equilateral angles 6 or grooves 7 oriented to the vertices or protuberances in side of the direction of movement of the fluid in the dispenser. The ratio of the width of the window 5 to the width of the pier in the form of a corner 6 and, pi the groove 7 in the light around the circumference of each reflective cylinder 4 is equal to the ratio of the area of the annular section between the wall of the column and this cylinder

4k of annular area between this cylinder 4 and adjacent inner cylinder 4, upper edges of windows

5 reflective cylinders 4 are located above the baffle plate 3, and the lower edges of the windows 5 of the reflecting cylinders 4 are below the reflecting disk 3, and the height of the windows 5 of this reflective cylinder 4 must be greater than the height of the liquid

along a parabolic trajectory of encounter with this reflective cylinder 4 Reflective cylinders 4 are attached

Q

0 5 o Q d

„

five

radial bolts 8 to the central tube 2.

The liquid distributor in the column works as follows.

The fluid is supplied through the central tube 2, is distributed evenly between the baffle plate 3 and the lower edge of the tube 2 and is guided by the action of inertia and gravity in the form of a paraboloid of rotation from cent ™ to the walls of the column 1. The first internal baffle cylinder 4 On its way, the flow of fluid from the center to the periphery in the form of a paraboloid of rotation is partially reflected from the rostenki in the form of equidistant corners 6 or grooves 7 of the internal reflective cylinder 4 and is distributed inside this cylinder 4, and the rest the fluid passes through the windows 5 of the inner reflective cylinder 4 to the periphery, crosses the line of the next reflective cylinder 4, where it is reflected from the walls in the form of corners 6. or grooves 7, and enters the annulus between the cylinder 4 and the adjacent inner cylinder 4, where uniformly is distributed, the rest of the liquid in the form of a partially interrupted paraboloid of rotation passes through the windows 5 of this cylinder 4 to the next outer cylinder 4, and so on, including the last outer cylinder 4 and the walls of the columns 1. When a fluid flow interacts from the center to the periphery in the form of a paraboloid of rotation with the walls of the reflective cylinders 4 in the form of equal angles 6 or grooves 7, the liquid reflects against the flow in the direction from the periphery to the center into the annular space between this reflective cylinder 4 and the adjacent inner cylinder 4, as a result of which a uniform distribution of the fluid in the annular sections between the reflective cylinders 4 over the entire cross section of the column 1 is achieved.

The proposed liquid distributor in the column provides a more uniform distribution of the liquid over the section of the column, which contributes more fully to the contact between the gas (vapor) and the liquid and increases the heat and mass transfer between the gas (vapor) and the liquid

absorption-desorption, rectification, gas removal and other similar processes.

Claims (1)

The invention of the distributor of liquid in the column on the author. St. No. 1247067, characterized in that, in order to intensify the process of heat and mass transfer, it is equal to neither the fluid along the cross section of the column, the walls of the reflective cylinders are made in the form of a vertical line of different angles or grooves oriented tops or protuberances in the direction of the movement of the fluid in the distributor, while the width of the corners or grooves in the light is equal to the width of the walls of each reflecting cylinder . / 2 L Figm Jbl s $ i Lll Fi9.5