Porous medium tray

Abstract

The utility model provides a porous medium tray, which relates to the technical field of chemical porous medium trays and comprises an upper tray, a downcomer arranged at the top of the upper tray, a porous medium arranged at the bottom of the upper tray, and a support frame arranged on one side of the porous medium. The gas-liquid contact area is greatly increased, gas and liquid phases can make full contact and transfer mass in the porous medium, the mass transfer efficiency is remarkably improved, through holes are formed in the six faces of the porous medium, and gas and liquid can enter the porous medium from multiple directions. By means of the multidirectional gas and liquid inlet mode, the gas phase and the liquid phase can be fully mixed and contacted in the porous medium. The solute in the gas can be transferred to the liquid more quickly, so that the absorption efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of porous media tray technology in chemical engineering, and in particular to a porous media tray. Background Technology

[0002] This utility model, disclosed in Chinese Patent No. CN204093075U, relates to a tray with a porous, anti-clogging, sawtooth overflow weir. It includes a tray, a baffle plate fixed to one side of the tray, and an overflow weir fixed above the baffle plate. The upper edge of the overflow weir is sawtooth-shaped, and several through holes for drainage are formed at the bottom of the overflow weir. For systems containing solid particles or easily agglomerated materials, accumulations easily form at the bottom of the overflow weir. Over long-term use, these accumulations can eventually clog the entire tray. The porous, anti-clogging, sawtooth overflow weir allows solid particles accumulated at the bottom of the overflow weir to flow smoothly to the next tray through the semi-circular holes, improving tray efficiency. This utility model is mainly applied to plate towers containing solid particles or easily agglomerated materials in industries such as oil refining, chemicals, and petrochemicals.

[0003] The aforementioned prior art and related documents have the following technical problems:

[0004] 1. Traditional trays, such as sieve trays, do not provide uniform gas-liquid contact, which can easily lead to local flooding or leakage, thereby reducing mass transfer efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a porous media tray.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a porous media tray, including an upper tray, a downcomer provided at the top of the upper tray, a porous medium provided at the bottom of the upper tray, and a support frame provided on one side of the porous medium.

[0007] Preferably, the top of the downcomer is provided with an anti-vortex device, and the anti-vortex device is threadedly connected to the downcomer.

[0008] Preferably, a sealing rubber is provided on one side of the downcomer, and the sealing rubber is welded to the downcomer, with the top of the sealing rubber rounded.

[0009] Preferably, a sealing ring is provided on one side of the support frame, and the sealing ring is fitted to the support frame, with one side of the sealing ring being rounded.

[0010] Preferably, the bottom of the porous medium is provided with a lower tray, and the lower tray and the porous medium are welded together.

[0011] Preferably, one side of the upper tray is provided with a perforated sieve, and the perforated sieve is arranged in a circumferential array, with each perforated sieve having the same diameter.

[0012] Preferably, the porous medium has six surfaces around its perimeter, and each surface has four through holes on one side. The through holes have the same diameter and are arranged in a matrix.

[0013] Beneficial effects

[0014] In this invention, each of the six surfaces of the porous medium has through holes, which greatly increases the gas-liquid contact area, allowing the gas and liquid phases to fully contact and transfer mass within the porous medium, significantly improving mass transfer efficiency. The through holes on all six surfaces of the porous medium allow gas and liquid to enter from multiple directions. This multi-directional gas and liquid inlet method enables thorough mixing and contact between the gas and liquid phases within the porous medium. The volatile components in the gas phase and the non-volatile components in the liquid phase can rapidly transfer mass through the microchannels and pores within the porous medium. Therefore, in the absorption tower, the transfer of solute from the gas to the liquid is more rapid, thereby improving absorption efficiency.

[0015] In this invention, a support frame is provided on one side of the porous medium. This ensures the stability of the porous medium layer, promotes uniform gas-liquid distribution, reduces mass transfer degradation caused by uneven local gas-liquid distribution, and improves the operational stability and flexibility of the tray. The support frame also makes the installation of the porous medium more convenient. During tray assembly, the support frame can be installed in the appropriate position first, and then the porous medium can be placed, ensuring accurate installation and positioning of the porous medium. Furthermore, the support frame facilitates operation when the porous medium needs to be inspected, cleaned, or replaced; maintenance personnel can more easily remove the porous medium from the support frame or reinstall it, reducing maintenance time and difficulty. Attached Figure Description

[0016] Figure 1 This is an isometric view of the present invention;

[0017] Figure 2 This is an internal isometric view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is an internal top view of the present invention.

[0020] Legend:

[0021] 1. Upper tray; 2. Downcomer; 3. Sealing rubber; 4. Anti-vortex device; 5. Support frame; 6. Sealing ring; 7. Porous medium; 8. Lower tray; 9. Through hole; 10. Perforated sieve. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0025] Reference Figure 1-4 A porous media tray includes an upper tray 1. Three downcomers 2, arranged vertically in an equilateral triangle, are provided on the top of the upper tray 1. Anti-vortex devices 4 are provided at the top of the downcomers 2, and the anti-vortex devices 4 are threadedly connected to the downcomers 2. Sealing rubber 3 is provided on the outer side of the downcomers 2 that contacts the upper tray 1, and the sealing rubber 3 is welded to the downcomers 2. The top of the sealing rubber 3 has rounded corners. A sealing ring 6 is provided on the outer side of a support frame 5, and the sealing ring 6 is fitted to the support frame 5. One side of the sealing ring 6 has rounded corners. The upper tray 1... The bottom of the porous medium 7 is vertically provided with multiple porous media 7. Each porous media 7 has six faces around its circumference and a regular hexagonal cross-section. These hexagons are connected by a common vertex, so the overall shape after connection is circular (the circumference is not smooth). Each face has four through holes 9 on one side. Each through hole 9 has the same diameter and is arranged in a matrix. The bottom of the porous medium 7 is provided with a lower tray 8, and the lower tray 8 is welded to the porous medium 7. The upper tray 1 is provided with perforated screens 10 between its upper and lower sides. The perforated screens 10 are arranged in a circumferential array and each perforated screen 10 has the same diameter. The outer side of the porous medium 7 is provided with a support frame 5.

[0026] Each of the six surfaces of the porous medium 7 has through holes 9, which increases the gas-liquid contact area, allowing the gas and liquid phases to fully contact and transfer mass within the porous medium 7, significantly improving mass transfer efficiency. The through holes 9 on all six surfaces of the porous medium 7 allow gas and liquid to enter from multiple directions. This multi-directional gas and liquid inlet method enables thorough mixing and contact between the gas and liquid phases within the porous medium 7. For example, during distillation, the volatile components in the gas phase and the non-volatile components in the liquid phase can rapidly transfer mass through the microchannels and pores within the porous medium 7. The transfer of solute from the gas to the liquid is even faster, thus improving absorption efficiency. A support frame 5 is provided on one side of the porous medium 7, ensuring the stability of the porous medium 7 layer and promoting uniform gas-liquid distribution. This reduces mass transfer degradation caused by uneven local gas-liquid distribution, improving the operational stability and flexibility of the tray. The support frame 5 also makes the installation of the porous medium 7 more convenient. In this way, during the assembly of the tray, the support frame 5 can be installed in the appropriate position first, and then the porous medium 7 can be placed, which ensures the accurate installation and positioning of the porous medium 7. At the same time, when it is necessary to inspect, clean or replace the porous medium 7, the support frame 5 also facilitates operation. Maintenance personnel can more easily remove the porous medium 7 from the support frame 5 or install it back, reducing maintenance time and difficulty. Specific Implementation Example 2:

[0028] Reference Figure 1-4 A flow guide ring is provided on one side of the through hole 9. During use, the flow guide ring can guide the gas passing through the through hole 9, so that it flows in a specific direction. In some distillation or absorption processes, the gas needs to be evenly distributed on the tray to fully contact the liquid. The flow guide ring can guide the gas to various parts of the porous medium, avoiding the gas from concentrating in local areas, thereby making the gas-liquid contact more uniform on the entire tray and improving the mass transfer efficiency.

[0029] In summary:

[0030] 1. By employing a porous medium 7 with through holes 9 on each of its six surfaces, the gas-liquid contact area is increased, allowing for sufficient contact and mass transfer between the gas and liquid phases within the porous medium 7, significantly improving mass transfer efficiency. The through holes 9 on all six surfaces of the porous medium 7 allow gas and liquid to enter from multiple directions. This multidirectional gas and liquid inlet method enables thorough mixing and contact between the gas and liquid phases within the porous medium 7. For example, during distillation, the volatile components in the gas phase and the non-volatile components in the liquid phase can rapidly transfer mass through the microchannels and pores within the porous medium 7, resulting in faster transfer of solute from the gas to the liquid, thus improving absorption efficiency.

[0031] 2. The use of a support frame 5 on one side of the porous medium 7 ensures the stability of the porous medium 7 layer and promotes uniform gas-liquid distribution. This reduces mass transfer degradation caused by uneven local gas-liquid distribution, improves the operational stability and flexibility of the tray, and makes the installation of the porous medium 7 more convenient. During tray assembly, the support frame 5 can be installed in the appropriate position first, and then the porous medium 7 can be placed, ensuring accurate installation and positioning of the porous medium 7. Furthermore, the support frame 5 facilitates operation when the porous medium 7 needs to be inspected, cleaned, or replaced. Maintenance personnel can more easily remove or reinstall the porous medium 7 from the support frame 5, reducing maintenance time and difficulty.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A porous media tray, comprising an upper tray (1), characterized in that: The upper tray (1) is provided with a perforated screen (10) between its upper and lower sides. The top of the upper tray (1) is provided with a downcomer (2). There are three downcomers (2), which are arranged vertically on the upper tray (1) in an equilateral triangle. The bottom of the upper tray (1) is provided with a porous medium (7). The porous medium (7) has six sides around its perimeter, and each side of each side is provided with four through holes (9). The cross-section of the porous medium (7) is a regular hexagon, and these hexagons are connected by a common vertex. The outside of the porous medium (7) is provided with a support frame (5). The bottom of the porous medium (7) is provided with a lower tray (8). The top of the downcomer (2) is provided with an anti-vortex device (4).

2. The porous media tray according to claim 1, characterized in that: The anti-vortex device (4) and the downcomer (2) are connected by threads.

3. A porous media tray according to claim 1, characterized in that: The downcomer (2) has a sealing rubber (3) on one side, and the sealing rubber (3) and the downcomer (2) are welded together. The top of the sealing rubber (3) is rounded.

4. A porous media tray according to claim 1, characterized in that: The support frame (5) has a sealing ring (6) on one side, and the sealing ring (6) is fitted to the support frame (5). One side of the sealing ring (6) is rounded.

5. A porous media tray according to claim 1, characterized in that: The lower tray (8) and the porous medium (7) are welded together.

6. A porous media tray according to claim 1, characterized in that: The perforated sieve (10) is arranged in a circular array, and each perforated sieve (10) has the same aperture.

7. A porous media tray according to claim 1, characterized in that: Each through hole (9) has the same diameter, and the through holes (9) are arranged in a matrix.

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