Nozzle for mass transfer and separation apparatus

 

(57) Abstract:

The invention relates to the field of chemical and petroleum engineering and can be used as an internal device in mass transfer and separation devices for the implementation of the processes of mass transfer and separation phases. The invention consists in that the locking elements of the nozzle is made in the form of parallel rods placed in the grid, and between the mesh layers with partial overlapping of the cross-section of the nozzle and attaching the ends of the rods, for example, plates, with layers of mesh installed at an angle to the rods. To drain fluid from the nozzle terminals can be installed at an angle to the horizontal plane. In addition, mesh, forming a multi-layer package may have a height or length of zigzag or curved profile. Listed constructive variants can be made of woven or welded mesh with different sizes and shapes of cells, as well as from a wire or monofilament various thickness and profile. As the grid can also be used a mesh sleeve of wire or polymeric monofilament, linked from one, two or more wires or filaments. This can be used is titelliste and efficiency of the processes of mass transfer and separation. 4 C.p. f-crystals, 6 ill.

The invention relates to the field of chemical and petroleum engineering and can be used as an internal device in mass transfer and separation devices for the implementation of the processes of mass transfer and separation phases.

Known separation device (U.S. patent N 3133802. 1964), consisting of the inclined mesh packages and inclined chutes for removal of fluid from the nozzle. The presence of inclined packages contributes to the increase of productivity (pair), however, the efficiency of separation of small droplets when the inclination of the nozzle is not improving. In addition, the nozzle can not be effectively used for mass transfer devices.

Known three-layer separation nozzle (patent Germany N 2308076. 1976), consisting of a grid and is intended to capture large and small drops. The first (bottom) layer consists of wire mesh and is designed to trap large drops. The second (middle) layer is composed of fibrous material and is used for coagulation and recovery of small droplets. The third (top) layer consists of wire mesh and is designed to trap large drops out from the middle layer. Mount the nozzle in appr CLASS="ptx2">

The disadvantage of this nozzle is the presence of a layer of fibrous material with small cells with high hydraulic resistance and low bandwidth of liquid and gas. The nozzle has a high separation efficiency and low productivity. In addition, the nozzle is prone to clogging, which limits its scope.

The aim of the invention is to increase productivity and efficiency of the processes of mass transfer and separation.

The goal is achieved in that the securing elements of the nozzle is made in the form of parallel rods placed in the grid, and between the mesh layers with partial overlapping of the cross-section of the nozzle and attaching the ends of the rods, for example, plates, while the grid layer is set at an angle to the rods.

To improve flow of fluid from the nozzle terminals can be installed at an angle to the horizontal plane.

In addition, mesh, forming a multi-layer package may have a height or length of zigzag or curved profile.

Listed constructive variants can be made of woven or welded mesh with different sizes and shapes of ACE the Ana mesh sleeve of wire or polymeric monofilament, linked from one, two or more wires or filaments. This can be used flat or pre-authoritively mesh sleeves.

In Fig. 1 shows a longitudinal and a transverse incision package nozzle, consisting of two layers of mesh, arranged zigzag along the length. Each layer is pierced by two rows of rods, and between the grids there are three series of parallel rods.

In Fig. 2 shows a longitudinal and a transverse incision package nozzle, consisting of a multilayer grid, arranged zigzag in height and is pierced by two rows of rods.

In Fig. 3 shows a longitudinal and a transverse incision package nozzle, consisting of a mesh sleeves, arranged zigzag along the length and curved in an arc between the two rows of terminals.

In Fig. 4 shows a longitudinal and a transverse incision package nozzle, consisting of a flat mesh sleeves, arranged zigzag along the length of and fixed by three rods and two plates.

In Fig. 5 shows a section mass transfer apparatus, which has a four-layer mesh attachment of the corrugated mesh. Each layer is sandwiched between two rows of rods, and between the layers installed on three reatogo sleeve, laid zigzag and penetrated the locking rods. Under the cap is installed with a slope of three series of parallel rods.

The nozzle consists of a grid 1, the terminals 2 and plate 3 for mounting the ends of the rods.

The nozzle exchanging apparatus operates as follows. Contacting the liquid with the help of the fill evenly distributed on the nozzle. Gas (vapor) enters the nozzle from the bottom, while the contact phase and the mass transfer is carried out on the surface mesh. Fixing the grid rods, laid in rows, additionally create turbulence flow of gas (vapor) in the nozzle, thereby increasing the efficiency of mass transfer. In high density irrigation liquid terminals perform the role of additional degrees of contact with the education bubble zones of contact.

Alternating layers of rods and mesh layers that act as separators, provides high performance and efficiency of mass transfer.

The nozzle in the separating apparatus operates as follows. Ha (pairs) containing drip the liquid enters the nozzle at the bottom. After passing the lower series of rods, gas (steam) is cleared from the large drops which flow down the inclined rods, the sa is it due to turbulence in the flow is the coagulation of small droplets, part of which flows into the lower layers of the nozzle, and the other part is captured by the upper layers of mesh and also flow down to the studs and removed from the zone of separation.

The presence of alternating layers of rods in mesh nozzle due to turbulence in flows and the guaranteed withdrawal of fluid from the zone of separation increases the productivity and efficiency of the processes of mass transfer and separation.

In addition, the presence of the rods provides a more secure fastening of the mesh retains its structure and eliminates the formation of through channels during operation, which increases the reliability of the nozzle and allows the use of mesh and knitted sleeve of thin wire with a diameter of 0.1 to 0.15 mm, which is difficult to shirring.

1. Nozzle for mass transfer and separation apparatus containing the grid, stacked layers, and fixing elements, characterized in that the securing elements are in the form of parallel rods placed in the grid, and between the mesh layers with partial overlapping of the cross-section of the nozzle and fastening their ends, for example, plates, with layers of mesh installed at an angle to the rods.

2. Nozzle under item 1, characterized in that the rods ascertain the length has a zigzag profile.

4. Nozzle under item 1 or 3, characterized in that the grid has an arched profile.

5. The nozzle on the PP.1, 3, or 4, characterized in that the grid is made of mesh sleeves.