CN202410207U - Regular ripple packing bed suitable for high liquid level - Google Patents

Abstract

The utility model discloses a regular corrugated packing bed suitable for large liquid volume, which comprises a tower body and packing, and the packing in the tower body is separated by grids. The beneficial effects of the utility model are: under high-pressure rectification, absorption or desorption working conditions with a large liquid-gas ratio, the liquid phase load is extremely large, and the gas phase is easy to diffuse into the liquid phase. Such a regular corrugated packing suitable for large liquid volume The bed structure solves the problem of increased flow resistance caused by the decrease of the porosity of the contact surface and the change of the direction of the flow channel, so that the liquid can flow smoothly from the upper layer of packing to the lower layer of packing, thereby eliminating the bottleneck of gas-liquid flow on the contact surface of the regular corrugated packing, fully The high-flux performance of the structured corrugated packing is played; the gas release space is increased, which is beneficial to the removal of the gas entrained in the liquid phase and the liquid entrained in the gas phase, reducing the axial back-mixing of gas and liquid, and improving the efficiency of the structured corrugated packing. The mass transfer efficiency of the bed.

Description

Structured corrugated packing bed suitable for large liquid volume

technical field

The utility model relates to a regular corrugated packing bed, in particular to a regular corrugated packing bed suitable for large liquid volume.

Background technique

The structured corrugated packing widely used in modern chemical production has the structural characteristics of high void ratio and large specific surface area, so it has excellent performances of large flux, low pressure drop and high efficiency. However, under the condition of large liquid flux, the structured corrugated packing bed is prone to flooding, the gas and liquid fluxes are significantly reduced, and its advantages of high porosity are not brought into play. The structured corrugated packing bed is composed of regular corrugated packing layers with a thickness ranging from 50 mm to 200 mm. The direction of corrugation between layers is rotated at 90 degrees; The change of density and the decrease of porosity are the key factors that cause the structured corrugated packed bed to be prone to flooding and the gas-liquid flux to decrease under large liquid flux. Especially in high-pressure rectification, absorption or desorption conditions with a large liquid-gas ratio, the liquid phase load is extremely large, the gas is easily entrained into the liquid phase, and the liquid is also easily entrained to be entrained by the gas, and the density of the gas-filled liquid decreases. , the fluidity becomes poor, and the axial back-mixing of the gas phase intensifies; the density of the gas phase entraining the liquid increases, and the liquid back-mixing increases at the same time, which makes the packed bed easy to flood and the mass transfer efficiency decreases.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a regular corrugated packing bed which can overcome the bottleneck of gas-liquid flow, has small axial back-mixing of the gas-liquid phase, and is suitable for large liquid volume.

The purpose of the utility model is achieved through the following technical solutions: the regular corrugated packing bed suitable for large liquid volume includes a tower body and fillers, and the fillers in the tower body are separated by grids.

Preferably, the fillers in the tower body are separated by grids at a distance of 5 mm to 100 mm.

As a preference: the packing in the tower body is separated into at least two layers by grids.

As a preference: the grid is a high-porosity grid in the shape of a "well", a "cross" or a "Δ".

As a preference: the packing is a regular corrugated packing, and the upper layer and the lower layer are crossed and rotated by 90°.

As a preference: the tower body is sequentially provided with support plates from bottom to top, which are multiple: packing, grid, and pressure ring.

As a preference: the support plate is fixed on the tower body through a support ring.

As a preference: the pressure ring is fixed on the inner wall of the tower body with bolts.

The beneficial effects of the utility model are: under high-pressure rectification, absorption or desorption working conditions with a large liquid-gas ratio, the liquid phase load is extremely large, and the gas phase is easy to diffuse into the liquid phase. Such a regular corrugated packing suitable for large liquid volume The bed structure solves the problem of increased flow resistance due to the decrease of the porosity of the contact surface and the change of the direction of the flow channel, so that the liquid can flow smoothly from the upper layer of packing to the lower layer of packing, thereby eliminating the bottleneck of gas-liquid flow on the contact surface of the regular corrugated packing, fully The high flux performance of the structured corrugated packing is exerted; the gas release space is increased, which is beneficial to the removal of the gas entrained in the liquid phase and the liquid entrained in the gas phase, reducing the axial back-mixing of gas and liquid, and improving the efficiency of the structured corrugated packing. The mass transfer efficiency of the bed.

Description of drawings

Fig. 1 is the front view structural representation of the utility model;

Fig. 2 is a schematic view of the structure of the utility model;

Fig. 3 is a schematic diagram of a "well" shaped grid;

Fig. 4 is a schematic diagram of a "ten"-shaped grille;

Figure 5 is a schematic diagram of a "Δ"-shaped grid;

Explanation of reference numerals: support plate 1, support ring 2, filler 3, grid 4, tower body 5, bolt 6, pressure ring 7.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further. Although the utility model will be described in conjunction with preferred embodiments, it should be understood that it does not mean that the utility model is limited to the embodiments. On the contrary, the invention is to cover alternatives, modifications and equivalents, which may be included within the scope of the invention as defined by the appended claims.

As shown in Figures 1 to 5, the structured corrugated packing 3 in the tower body 5 is separated by one, two or several layers with a space of 5 to 100 mm with a high-void ratio grid 4, and other structures are similar to those of conventional packed towers. same. Taking every other layer of structured corrugated packing 3 as a structural illustration, first place a layer of structured corrugated packing 3 on the packing support ring 2 in the tower body 5, and then place a grid 4 processed by grid strips with a height of 5 to 100mm on it. , The grid can be processed into a high-porosity support structure in the form of "well", "ten" and "Δ". Then place a layer of structured corrugated packing 3 crossed and rotated 90° with the lower layer on the top, and then place a grid 4 with a height of 5-100mm processed by grid strips on the top, and then place a layer of cross-rotated 90° with the lower layer on the top. °Standard corrugated packing 3, repeating this cycle until the height of the packing 3 meets the separation requirements of the process, and finally the upper end is fixed with the packing ring 7, and a liquid collecting and redistributing device can also be set in the middle according to the process requirements. Such a structure enables the liquid to enter the lower packing 3 smoothly from the upper packing 3, increases the release space of the gas, is beneficial to remove the gas entrained in the liquid phase, and reduces the axial back-mixing of the gas phase, thus eliminating the regular corrugated packing 3 The gas-liquid flow bottleneck on the contact surface gives full play to the high-throughput performance of the structured corrugated packing 3 and improves the mass transfer efficiency of the structured corrugated packing bed.

Claims (8)

1. a regular corrugation filler bed that is fit to big liquid measure comprises tower body (5), filler (3), it is characterized in that: the filler (3) in the tower body (5) separates with grid (4).

2. the regular corrugation filler bed that is fit to big liquid measure according to claim 1 is characterized in that: the distance that the filler (3) in the said tower body (5) separates with grid (4) is 5mm ~ 100mm.

3. the regular corrugation filler bed that is fit to big liquid measure according to claim 1 is characterized in that: the filler (3) in the said tower body (5) separates at least two-layer with grid (4).

4. the regular corrugation filler bed that is fit to big liquid measure according to claim 1, it is characterized in that: said grid (4) is the high voidage grid of " well " font, " ten " font or " Δ " shape.

5. the regular corrugation filler bed that is fit to big liquid measure according to claim 1, it is characterized in that: said filler (3) is a regular corrugation filler, intersects half-twist between the upper and lower.

6. the regular corrugation filler bed that is fit to big liquid measure according to claim 1 is characterized in that: institute's tower body of telling (5) is provided with gripper shoe (1) from top to bottom successively, for a plurality of: filler (3), grid (4), trim ring (7).

7. the regular corrugation filler bed that is fit to big liquid measure according to claim 6, it is characterized in that: said gripper shoe (1) is fixed on the tower body (5) through bracing ring (2).

8. the regular corrugation filler bed that is fit to big liquid measure according to claim 6, it is characterized in that: said trim ring (7) is fixed on the inwall of tower body (5) with bolt (6).

Images