CN116786031A

CN116786031A - Gas distribution filler

Info

Publication number: CN116786031A
Application number: CN202310829642.1A
Authority: CN
Inventors: 段有龙; 谭瑞春; 谭博文
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-09-22

Abstract

The invention relates to a tower internal part, in particular to a gas distribution filler. N layers of fillers are arranged from bottom to top, N is a positive integer, and each layer of filler comprises a plurality of filler blocks; the packing block comprises a first folded plate, a second folded plate, straight plates, a column body and a sleeve body, wherein the first folded plate and the second folded plate are consistent in inclination angle and opposite in direction, and are symmetrically and alternately arranged between the straight plates to form holes with staggered upper and lower sizes; the column body and the sleeve body are fixedly connected to the two ends of the straight plate, and adjacent filler blocks on the same layer are sleeved and connected through the column body and the sleeve body; the n+1th layer of filler turns 180 degrees for the N layer of filler, the N layer of filler corresponds to the n+1th layer of filler with big open pores and small open pores correspond to the small open pores, and a pulse structure is formed. The gas uniform distribution function is realized, the mass transfer function is realized, the blockage is not easy, and the operation requirement of the tower is met.

Description

Gas distribution filler

Technical Field

The invention relates to a tower internal part, in particular to a gas distribution filler.

Background

A packed column is one type of column equipment that is packed with a suitable height of packing to increase the contact surface between the two fluids. The structured packing is arranged in the tower according to uniform geometric figures, and is orderly piled up, and has the characteristics of small pressure drop, high separation efficiency, high operation elasticity, strong adaptability and the like, and is widely applied to industries such as petroleum, chemical industry and the like.

At present, the packing tower gradually develops to the large-scale and high-efficiency, and along with the large-scale of the packing tower, the tower diameter of the packing tower is also increased, but the amplification effect of the packing tower is highlighted due to the increase of the tower diameter. On one hand, the problem of filler blockage is solved, and on the other hand, the problem of uneven distribution of inlet air of a filler tower is solved.

In the prior art, the problem of uneven gas distribution is generally solved by arranging a gas distribution device between the gas inlet and the packing, but the gas distribution is uneven due to the instability of the gas quantity during operation and exceeds the use range of the gas distribution device, so that the packing tower has low efficiency.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a gas distribution filler, which realizes the function of gas uniform distribution, plays a mass transfer role, is not easy to block and meets the operation requirement of a tower.

In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:

n layers of filling materials are arranged from bottom to top, N is a positive integer, and each layer of filling material comprises a plurality of filling material blocks; the packing block comprises a first folded plate, a second folded plate, straight plates, a column body and a sleeve body, wherein the first folded plate and the second folded plate are consistent in inclination angle and opposite in direction, and are symmetrically and alternately arranged between the straight plates to form holes with staggered upper and lower sizes; the column body and the sleeve body are fixedly connected to the two ends of the straight plate, and adjacent filler blocks on the same layer are sleeved and connected through the column body and the sleeve body; the n+1th layer of filler turns 180 degrees for the N layer of filler, the N layer of filler corresponds to the n+1th layer of filler with big open pores and small open pores correspond to the small open pores, and a pulse structure is formed.

Further, the cylinder is a cylinder, and the sleeve body is a circular ring; the outer diameter of the cylinder is smaller than the inner diameter of the circular ring, a gap is formed on the outer side of the circular ring, and the width of the gap is larger than that of the straight plate; two adjacent fillers in the same layer are placed into the circular ring through the cylinder to be connected.

Further, the first folded plate and the second folded plate are provided with a plurality of through holes. The straight plate is provided with a plurality of through holes.

Further, the filler blocks are made of plastic materials. And the filler block is integrally injection molded.

Further, the shortest side of the packing blocks is smaller than the diameter of the manhole, so that each packing block can be installed through the manhole.

Further, when the gas distribution packing is installed, a first layer of packing is placed into an adjacent packing block sleeve body along the end column body of a packing block in the length direction, two packing end parts are connected, the packing is cut at the end part of the tower in sequence, and the packing is matched with the inner wall of the tower; the length directions of the adjacent filler blocks are parallel and are tightly adhered to each other, and the whole tower body is fully covered.

The second layer of filler is consistent with the length direction of the first layer of filler when being installed, but the filler turns over 180 degrees; the third layer of packing is installed in conformity with the first layer of packing, the fourth layer of packing is installed in conformity with the second layer of packing, and so on.

Compared with the prior art, the invention has the beneficial effects that:

1. after the final packing is installed, the invention forms a pulse structure from bottom to top, and has a plurality of contraction sections and expansion sections, and gas and liquid repeatedly form expansion and contraction flow in a flow channel flowing in opposite directions to carry out mass transfer. When the gas speed of one contraction section or expansion section is high, the gas resistance is increased, the flow speed is reduced, and finally, the gas with different flow speeds passes through the gas distribution filling materials with the multi-pulse structure, so that the gas flow speeds tend to be similar, and the trend that the gas flows upwards uniformly in the tower is formed. On one hand, the gas distributor plays a role in mass transfer and on the other hand, and realizes uniform gas distribution. Because the open holes are large, the tower is not easy to block, and the operation requirement of the tower is met. Meanwhile, the method has the advantages of small pressure drop, high separation efficiency, high operation elasticity and strong adaptability.

2. The packing block is made of plastic materials, is integrally injection molded, and has low cost.

3. Through holes are formed in the first folded plate, the second folded plate and the straight plate, and through holes formed in the straight plate and the folded plate, gas flows to a space with small resistance when the resistance is high.

4. The two adjacent fillers on the same layer are placed into the circular ring through the cylinder to be connected, so that the installation and the disassembly are convenient and quick.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic top view of the packing block structure of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic view of the opening of a straight plate according to the present invention;

fig. 5 is a schematic view of the aperture of the flap of the present invention.

In the figure: 101-first layer filler 102-second layer filler 103-third layer filler 104-fourth layer filler 105-fifth layer filler 106-sixth layer filler 1-cylinder 2-first folded plate 3-second folded plate 4-straight plate 5-circular ring

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

[ example ]

As shown in fig. 1, a gas distribution filler is provided with 6 layers of fillers from bottom to top, namely a first layer of filler 101, a second layer of filler 102, a third layer of filler 103, a fourth layer of filler 104, a fifth layer of filler 105 and a sixth layer of filler 106, each layer of filler comprising a plurality of filler blocks.

As shown in fig. 2 and 3, the filler block comprises a cylinder 1, a first folded plate 2, a second folded plate 3, a straight plate 4 and a circular ring 5. The cylinder 1 is fixedly connected with the left end of the straight plate 4, and the circular ring 5 is fixedly connected with the right end of the straight plate 4. The outer diameter of the cylinder 1 is smaller than the inner diameter of the circular ring 5, a gap is formed in the outer side of the circular ring 5, and the width of the gap is larger than that of the straight plate 4.

When in installation, two adjacent fillers in the same layer are placed into the circular ring 5 of the other adjacent filler block through the cylinder 1 at the end part of one filler, and the two fillers are connected. The installation and the disassembly are convenient and quick.

The four straight plates 4 are parallel to each other, at equal intervals, which are equal to the length of the folded plate. The first folding plates 2 and the second folding plates 3 are identical in shape and size, the four first folding plates 2 and the four second folding plates 3 are identical in inclination angle, opposite in direction and symmetrically staggered between two adjacent straight plates 4, and the included angles of the first folding plates 2 and the second folding plates 3 and the vertical surfaces are acute angles. The first folded plate 2 and the second folded plate 3 form a V shape with an opening at the lower end, the distance between the upper edge of the first folded plate 2 and the upper edge of the second folded plate 3 is larger, a large opening is formed, the distance between the lower edge of the first folded plate 2 and the lower edge of the second folded plate 3 is smaller, a small opening is formed, and the first folded plate 2 and the second folded plate 3 form openings with staggered upper and lower sizes.

As shown in fig. 4 and 5, the first folded plate 2, the second folded plate 3 and the straight plate 4 are uniformly provided with through holes, and can be provided with holes with various shapes, such as a circle, an ellipse, a rectangle and the like.

The filler block is made of plastic materials and is integrally injection molded. The gas distribution filler is made of plastic material and has low price. The packing is installed through the manhole, and the shortest edge of the packing block is smaller than the diameter of the manhole, so that each packing block can be installed through the manhole.

As shown in fig. 1-5, when the gas distribution packing is installed, a first layer of packing 101 is placed into a circular ring 5 of adjacent gas distribution packing along the length direction of a packing end cylinder 1, two packing ends are connected, the two packing ends are connected in sequence, and packing is cut at the end part of a tower and is matched with the inner wall of the tower; the length directions of the adjacent fillers are parallel and are tightly adhered, and the whole tower body is fully covered.

The second layer of packing 102 is mounted in the same length direction as the first layer of packing 101, but the packing is turned 180 degrees, i.e. the large openings are opposite to the large openings and the small openings are opposite to the small openings. The third layer of packing 103 corresponds to the first layer of packing 101, the fourth layer of packing 104 corresponds to the second layer of packing 102, and so on. And after the final filling is installed, a pulse structure from bottom to top is formed.

After the final filling is installed, a pulse structure from bottom to top is formed, the pulse structure is provided with a plurality of contraction sections and expansion sections, and gas and liquid repeatedly form expansion and contraction flows in a flow channel flowing in opposite directions to carry out mass transfer.

In the contraction section, the flow velocity of the fluid is large, so that mass transfer is enhanced; in the expansion section, the flow speed is slowed down, and the phenomena of gas-liquid two-phase separation and convection are generated. When the whole gas feed gas passes through the filler, the gas speed and the resistance are different when passing through each contraction section or expansion section due to uneven gas distribution. When the gas speed of one contraction section or expansion section is high, the gas resistance is increased, the flow speed is reduced, and finally, the gas with different flow speeds passes through the gas distribution filling materials with the multi-pulse structure, so that the gas flow speeds tend to be similar, and the trend that the gas flows upwards uniformly in the tower is formed.

At the same time, through the openings of the first folding plate 2, the second folding plate 3 and the straight plate 4, the gas flows into the space with small resistance of the partition wall when the resistance is large.

Finally, the function of uniform gas distribution is realized, meanwhile, the mass transfer function is realized, and the tower operation requirement is met due to the large open pore and difficult blockage. Meanwhile, the method has the advantages of small pressure drop, high separation efficiency, high operation elasticity and strong adaptability.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. A gas distribution packing, characterized by: n layers of fillers are arranged from bottom to top, N is a positive integer, and each layer of filler comprises a plurality of filler blocks;

the packing block comprises a first folded plate, a second folded plate, straight plates, a column body and a sleeve body, wherein the first folded plate and the second folded plate are consistent in inclination angle and opposite in direction, and are symmetrically and alternately arranged between the straight plates to form holes with staggered upper and lower sizes;

the column body and the sleeve body are fixedly connected to the two ends of the straight plate, and adjacent filler blocks on the same layer are sleeved and connected through the column body and the sleeve body;

the n+1th layer of filler turns 180 degrees for the N layer of filler, the N layer of filler corresponds to the n+1th layer of filler with big open pores and small open pores correspond to the small open pores, and a pulse structure is formed.

2. A gas distribution packing according to claim 1, wherein:

the cylinder is a cylinder, and the sleeve body is a circular ring; the outer diameter of the cylinder is smaller than the inner diameter of the circular ring, a gap is formed on the outer side of the circular ring, and the width of the gap is larger than that of the straight plate; two adjacent fillers in the same layer are placed into the circular ring through the cylinder to be connected.

3. A gas distribution packing according to claim 1, wherein:

the first folding plate and the second folding plate are provided with a plurality of through holes.

4. A gas distribution packing according to claim 1, wherein:

the straight plate is provided with a plurality of through holes.

5. A gas distribution packing according to claim 1, wherein:

the filler blocks are made of plastic materials.

6. A gas distribution packing according to claim 5, wherein:

and the filler block is integrally injection molded.

7. A gas distribution packing according to claim 1, wherein:

the shortest side of the packing block is smaller than the manhole diameter.

8. A gas distribution packing according to claim 1, wherein:

when the gas distribution packing is installed, a first layer of packing is placed into an adjacent packing block sleeve body along the end column body of a packing block in the length direction, two packing end parts are connected, the two packing end parts are sequentially connected, packing is cut at the end part of the tower, and the packing is matched with the inner wall of the tower; the length directions of adjacent filler blocks are parallel and tightly attached, and the whole tower body is fully covered;