RU115234U1 - GAS FLOW DISTRIBUTION DEVICE FOR HEAT AND MASS EXCHANGE UNITS - Google Patents

Abstract

1. A device for distributing a gas flow for heat and mass exchangers, including a support grid, partitions, a sheet with perforation, characterized in that the space between the partitions is filled with a layer of movable nozzles. ! 2. The gas flow distribution device for heat and mass transfer apparatus according to claim 1, characterized in that the distance between the partitions is selected based on the condition of equality of the areas of the planes of the cross sections of the sections.

Description

This utility model relates to gas distribution devices for heat and mass transfer apparatus and can find application in the chemical, petrochemical, energy and other industries.

Closest to the claimed technical solution is a gas distribution device [RU 2394623 C1 IPC B01D 3/00, B01D 3/32, publ. 07/20/2010], installed inside the device’s body against the gas inlet pipe with a gap to the case, made in the form of a hexagonal prism, which has a coaxially located inner cylinder having slots or perforations. The lengthwise cylinder is divided into sections by annular disks with hole diameters decreasing from the gas inlet pipe. Blocks of corrugated sheets are installed on the sides of the prism, the corrugations of which are made in the adjacent sheets by a crosshair. The space between the hexagonal prism and the inner cylinder may be filled with an irregular nozzle. The technical result is a uniform distribution of the gas stream over the cross section of the apparatus and improving the quality of the separation of finely dispersed streams at high values of the velocity factor in the inlet of the gas mixture. The disadvantages of this technical solution is the complexity of the manufacture of the structure, low efficiency of the dispenser.

The problem to which the claimed utility model is directed is to organize a uniform distribution of the gas flow over the cross section of the heat and mass transfer apparatus, with a relatively simple design.

This problem is solved due to the fact that the claimed gas flow distribution device for heat and mass transfer apparatus includes a support grid, partitions, perforated sheet, the space between the partitions (sections) can be filled with a regular nozzle layer, and the distance between the partitions is selected based on the condition of equal areas planes of the cross section of the apparatus, formed by division into sections.

The technical result provided by the given set of features is to ensure uniform distribution of the gas stream over the cross section of the heat and mass transfer apparatus, while having the simplicity of the design of the switchgear.

The essence of the utility model is illustrated in the drawing, which shows:

Figure 1 is a sectional view of a General device for the distribution of gas flow along the vertical axis and a diagram of the flow of liquid and gas in it.

The proposed gas flow distribution device is installed in the lower part of the heat and mass transfer apparatus, in the plane of the cross section of which a support grate is mounted 1. On the grate 1 there are vertical partitions 2 forming parallel sections 3. Moreover, the distance between the partitions 2 is selected based on the condition of equal cross-sectional area of the planes apparatus formed by dividing into sections 3. In each of the sections 3 on the support grid 1 is laid a layer of a regular nozzle. On top of the partitions 2 there is a sheet with perforation 4 for the passage of gas in contact with the inner wall of the heat and mass transfer apparatus.

The device operates as follows. The gas stream enters the apparatus through a gas inlet 5 under the support grid 1. The pressure of the supplied gas acts on the regular nozzle, displacing it from the equilibrium position. Under the pressure of the gas flow in each of the sections 3, the nozzle moves up or down. With a maximum pressure in one of the sections 3, the entire movable nozzle is pressed against the perforated sheet 4, the cross section for the gas passage becomes minimal, while the gas flow will be easier to pass through the other sections 3. The liquid flowing down from the nozzle pack 6 is in contact with the upward flow gas. Moreover, sections 3 filled with a regular nozzle are an additional zone of contact with the developed surface.

Claims (2)

1. A gas flow distribution device for heat and mass transfer apparatus, including a support grid, partitions, perforated sheet, characterized in that the space between the partitions is filled with a layer of a movable nozzle. 2. The gas flow distribution device for heat and mass transfer apparatuses according to claim 1, characterized in that the distance between the partitions is selected based on the condition of equality of the areas of the planes of the cross-sections of the sections.