EP3837044A1 - Corps de remplissage pourvu de lamelles à forme d'arc ou de vague asymétrique - Google Patents

Corps de remplissage pourvu de lamelles à forme d'arc ou de vague asymétrique

Info

Publication number
EP3837044A1
EP3837044A1 EP19755336.5A EP19755336A EP3837044A1 EP 3837044 A1 EP3837044 A1 EP 3837044A1 EP 19755336 A EP19755336 A EP 19755336A EP 3837044 A1 EP3837044 A1 EP 3837044A1
Authority
EP
European Patent Office
Prior art keywords
lamella
packing
lamellae
apex
vertices
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19755336.5A
Other languages
German (de)
English (en)
Inventor
Werner Geipel
Christian Geipel
Christian MEHRINGER
Karin Hoffmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RVT Process Equipment GmbH
Original Assignee
RVT Process Equipment GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RVT Process Equipment GmbH filed Critical RVT Process Equipment GmbH
Publication of EP3837044A1 publication Critical patent/EP3837044A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30203—Saddle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30223—Cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30276—Sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30276—Sheet
    • B01J2219/30288—Sheet folded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30296—Other shapes

Definitions

  • the present patent application relates to a packing, in particular for mass and / or heat exchange columns through which at least one gas and / or at least one liquid flow flows, with a plurality of lamellae arranged next to one another and curved inwards and / or outwards, wherein each lamella is connected at least at one of its ends to the lamella (s) arranged next to it.
  • Packings of this type have long been known and are used, for example, for mass and / or heat transfer processes in columns or chemical reactors.
  • these random packings also known as bulk packings, are used in gas-liquid contact devices or liquid-liquid contact devices in order to create mass transfer surfaces between a downward flowing fluid, usually a liquid flow, and an upward rising fluid, usually a gas or to form steam flow or another liquid flow.
  • Random fillers are used in a large number of chemical processes and treatment processes, for example for rectification, absorption, desorption and for heat transfer in the process industry, for example in chemistry, petrochemicals, in the refinery sector and in environmental technology.
  • the individual fillers have a certain geometric shape and are designed in such a way that maximum separation performance is achieved with a specified mass transfer area.
  • the random packing is usually poured into the columns or reactors as bulk material, so that a random packing bed is created.
  • the individual packings should therefore have a high mass transfer efficiency and good hydraulic capacity, even in different orientations in the packing.
  • an increase in the specific surface area leads to an increase in the mass transfer efficiency.
  • an increase in the specific surface area also leads to an undesirable increase in the pressure loss in the column.
  • An excessive increase in pressure loss ultimately leads to a flooding of the column in which the liquid is entrained in the gas stream. Excessive pressure loss should therefore be avoided at all costs.
  • Random fillers are known in a variety of shapes and materials.
  • WO 2008/067031 A2 shows a saddle-shaped filler body with two elongated, mutually spaced, curved side parts that define a curved longitudinal axis between them. Curved inner and outer ribs are formed between the side parts and connected to them, which define an inner volume of the packing. At least one lower rib is formed between the curved inner and outer ribs and is arranged in the inner volume of the packing.
  • This inner rib can have two vertices and can be divided into two segments.
  • the ribs are essentially sinusoidally curved or formed as part of a sine wave.
  • a disadvantage of this packing is that the individual ribs at least partially overlap when viewed along the curved longitudinal axis of the packing. In this direction, the filler body therefore has a very large open cross-section. B. the formation of liquid channels and therefore can lead to poorer separation performance.
  • the object of the present invention to provide a packing which further improves the packing known from the prior art.
  • the packing should contribute to an improved separation performance, lower pressure loss and a high hydraulic capacity.
  • At least one of the slats has an irregular shape, at least one of the slats being curved in an arcuate or undulating manner perpendicular to the longitudinal axis of the filler body and having at least two changes in direction of its slope, i.e. that the arc shape of the lamella is such that the slope changes its sign at least twice and the arc shape of the lamella is asymmetrical, so that the lamella has no symmetry in itself.
  • the shape of the lamellae is described below perpendicular to a longitudinal axis of the packing.
  • the shape of the lamellae can be described by a curve in a plane, this plane being perpendicular to the longitudinal axis of the packing.
  • An irregular shape is to be understood to mean that the shape of this lamella differs greatly from a sine wave shape and has no periodically recurring elements. Due to the irregular shape of the at least one lamella, the irregular or irregular structure of the entire package, which arises when the packing elements are poured into the apparatus provided for this purpose, is picked up in each individual packing element. This results in more uniform coverage of the volume to be filled, which leads to a better distribution of the fluids flowing through the apparatus.
  • the change of direction can be constant or inconsistent respectively. This is one way of achieving the desired interruptions in the cross section perpendicular to the longitudinal direction. This effect can be intensified if several slats with different asymmetrical arch shapes are provided.
  • all lamellae of the packing have different shapes, so that the cross section of the packing is broken perpendicular to its longitudinal direction by many webs which cross but do not overlap in larger areas. This avoids the formation of liquid channels and achieves a large phase separation area.
  • the at least one lamella can preferably have at least two vertices and a different height in the vertices. The change of direction of the slope then takes place at each vertex.
  • the lamella is thus composed of at least two half-waves, which have a different height / amplitude. If several slats with different asymmetrical arches are provided, at least several vertices should have different heights. It can also be provided that two lamellae have the same or similar asymmetrical arch shape, but are designed to be mirror-inverted to one another. This also means that the lamellas that intersect the cross section of the packing do not overlap, but intersect at most at one point.
  • the at least two vertices of the at least one lamella have a different distance from the respectively adjacent end of the lamella.
  • the lamella is thus composed of two half-waves, which have a different wavelength. This is also a measure to interrupt the cross section of the packing perpendicularly to the longitudinal axis at as many places as possible in order to achieve a better distribution of the fluids flowing through and ultimately to improve the separation performance.
  • At least one lamella has three vertices, the middle vertex having a first height and the two lateral vertices having a second and third height and at least one of the heights being different from the other two heights. It can also be provided that all three vertices have different heights. In this way too, a good interruption of the filler cross-section is achieved, an overlap of the lamellae is avoided and ultimately a better separation performance is achieved. Furthermore, it can be provided that at least one slat has three vertices and the distance from a first end of the slat to the middle vertex is greater than the distance from a second end of the slat to the middle vertex. This also achieves an asymmetrical shape of the lamella, which achieves the desired effect of an interruption of the filler cross section and an improved separation performance already described.
  • At least one slat is divided into two segments transversely to its longitudinal direction.
  • Draining points are formed in the interior of the packing. Liquid flows arising on the packing are interrupted and intensive contact of the fluids flowing through the column / apparatus is achieved.
  • At least one of the segments of the lamella can have an asymmetrical arch shape as described above.
  • the other segment can be curved or straight.
  • the other, second segment advantageously has an opposite slope to the end of the first, arc-shaped segment facing it.
  • the lamella has at least two changes of direction in the slope, on the one hand at the apex of the arcuate first segment, and on the other hand at the transition from the first to the second segment. Both segments can also be arcuate.
  • the two segments can also have different lengths. In this case, the lamella is not divided in the middle, but the division takes place offset to the center.
  • ends of the two segments of the lamella to be pointed towards one another are spaced apart from one another.
  • the ends of the two segments preferably point in opposite directions. This leads to interruptions in the lateral surface of the packing, which can then be better flowed through by the fluids in all directions.
  • the filler body has at least one lamella which has a symmetrical arch shape with an apex.
  • This lamella is preferably arranged centrally in the packing. This leads to good stability of the packing.
  • At least two outer slats with an asymmetrical arch shape, each with an apex, can also be provided. These slats with only one vertex have a greater height at the vertex than the slats with multiple vertices. The low lamellae, ie the lamellae with several vertices, are thus protected and jamming with adjacent fillers is reduced.
  • the two outer fins are bent in different directions with only one apex starting from a first central plane, a large volume can be enclosed.
  • the first center plane is arranged centrally between a front side and a rear side of the packing. A low pressure drop can be achieved through the open concept achieved.
  • two lamellae with an asymmetrical arch shape each with an apex, can be arranged at each end of the packing.
  • Two slats, which have the shape described, are thus arranged both at the upper and at the lower end of the packing. This ensures a high stability of the packing.
  • At least one lamella with an asymmetrical arch shape with at least two vertices is arranged between the middle lamella and the outer lamellae. This leads to a high stability, to a large surface on which the separation process can take place, to an open design with little pressure loss and prevents the filling bodies from getting caught together.
  • the filler body has a central lamella with a symmetrical arch shape with a vertex, at each end two outer lamellae with an asymmetrical arch shape with a vertex, which are curved in different directions and whose vertices point to different Sides of a second central plane of the packing element, which is arranged between the left and the right side of the packing, comprise a strip with an asymmetrical arch shape with three vertices and a split strip with two segments between the central strip and the respective outer strips.
  • These packing elements are distributed evenly within the columns and ensure an even flow of liquid through the column. In addition, the structure of these packing elements cannot be deformed or can only be deformed with great difficulty.
  • At least one of the lamellae can be provided with a bead.
  • the strength of the packing can be increased further if a transverse web, which extends over the entire length of the packing and into which the lamellas pass, is formed on both lateral edges of the packing. These crossbars can be crimped.
  • the volume of the filler body enclosed by the lamellae is essentially cuboid.
  • the ratio of the height of the packing to the theoretical diameter of the packing is approximately 0.6. It has been shown that with this ratio a very good degree of filling of a given volume is achieved.
  • the size of the packing influences the flow and thus the capacity and can therefore be selected according to the respective application.
  • the larger the packing the lower the flow resistance and the pressure loss.
  • a more open structure of the packing increases the flow rate, while the size of the packing increases the efficiency of the separation process, since a larger surface is available for the separation process. Good contact with liquid and steam increases process efficiency and thus the quality of the process.
  • Fig. 6 View of the back of the packing from Fig. 1
  • Fig. 7a-i side view of the individual lamellae of the packing from Fig. 1 transverse to
  • Fig. 1 the packing according to the invention is shown in a perspective view.
  • the filler 1 comprises a plurality, in the exemplary embodiment shown nine, of lamellae 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 arranged side by side.
  • the fins 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 are bent outwards from a first central plane M1 (see FIG. 2) of the packing 1 and thus define the volume of the packing 1.
  • the slats are band-shaped with a width b and a length I. The exact shape of the slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 is described in more detail with reference to the following figures.
  • All slats preferably have the same width b, in the exemplary embodiment shown this is 5 mm. However, it would also be possible for at least some slats to have a different width.
  • the length I of all slats is the same.
  • Cross webs 3, 4 are formed on both edges of the packing 1, parallel to a longitudinal axis L of the packing 1. The slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 open into the crossbars 3, 4 and are firmly connected to them.
  • each of the slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 is connected to the adjacent slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 - the.
  • the transverse webs 3, 4 extend parallel to the longitudinal axis L of the filling body 1.
  • the lamellae 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 run transversely to the transverse webs 3, 4, ie perpendicular to the longitudinal axis L of the packing 1.
  • the filler 1 can be made of metal, for example.
  • the packing 1 is made from a metal strip.
  • cuts running parallel to the longitudinal direction of the metal strip are made in the metal strip. The cuts do not extend over the entire width of the metal strip, so that the transverse webs 3, 4 remain on both edges of the metal strip running perpendicular to the cuts.
  • the stripes resulting from the cuts running parallel to the longitudinal direction of the metal strip ie the lamellae 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, are pressed out of the plane of the metal strip so that a three-dimensional one Body, the packing 1, arises.
  • the individual packing elements are separated from the metal strip by cuts running transversely to the longitudinal direction of the metal strip.
  • Individual slats can be divided into two segments with short cuts running transversely to the longitudinal direction of the metal strip.
  • the slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 extend on both sides of the plane of the originally flat metal strip and enclose a volume V. All slats 2.1, 2.2 , 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 an arch shape with at least one vertex is stamped on it.
  • a vertex is the highest or lowest point of an arc or an arc piece.
  • At least one of the slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 has an irregular shape.
  • the term “irregular shape” means that at least one of the lamellae differs significantly from a sinusoidal wave shape and has no periodically recurring elements. In particular, this means that at least one of the lamellas is curved or wavy, has at least two changes in direction in its slope and has no symmetry in itself.
  • the exact shape of the slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 is discussed in more detail below, in particular with reference to FIGS. 7a-i.
  • FIG. 2 shows a plan view of the filling body 1 along its longitudinal axis L.
  • the arc shape of the lamellae 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 can be clearly seen. All slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 have a different shape.
  • the cross section of the filling body 1 is approximately rectangular, and the volume V enclosed by the lamellae 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 is therefore approximately cuboid.
  • the volume V is divided by a first center plane M1 and a second center plane M2, which are perpendicular to one another and intersect in the longitudinal axis L of the packing 1.
  • the first central plane M1 runs centrally between a front side 6 and a rear side 7 of the packing 1
  • the second center axis M2 runs centrally between a left side 8 and a right side 9 of the packing 1.
  • a coordinate system can be placed in the filler 1.
  • the z-axis of the coordinate system extends along the longitudinal axis L of the packing, the x-axis and the y-axis are perpendicular to one another and perpendicular to the z-axis.
  • the x-axis thus extends along the two-dimensional representation of the first central plane M1
  • the y-axis extends along the two-dimensional representation of the second central plane M2
  • the z-axis runs at the intersection of the two central planes M1, M2 , ie as already described along the longitudinal axis L of the packing 1.
  • the shape of the lamellae 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 can thus be in the xy plane, that is to say in relation to the z axis and this describes a plane perpendicular to the longitudinal axis L of the packing 1 with a curve, in the present case called an arc shape, and is explained in more detail below.
  • WO 2008/067031 A2 can also be used to describe the individual lamellae with the aid of such a coordinate system.
  • the z-axis runs along that of the longitudinal axis of the packing, which, however, is curved.
  • the z axis is therefore also curved.
  • the shape of the individual lamellae can also be described again by a curve in the xy plane of the coordinate system, that is to say a plane perpendicular to the z axis.
  • the curve shape of the lamellae is partially identical.
  • the slats with identical slat shape differ only in that they are arranged at different positions on the z-axis.
  • the slats are at least partially point-symmetrical to the origin of the coordinate system.
  • the cuboid shape of the packing 1 is achieved in that four of the lamellae, namely the first lamella 2.1, the second lamella 2.2, the eighth lamella 2.8 and the ninth lamella 2.9 each have an asymmetrical arc shape, each with an apex S1, S2, S8, S9, two of these four slats, namely the first slat 2.1 and the eighth slat 2.8, extend on one side of the first central plane M1 and the other two of these four slats, namely the second slat 2.2 and the ninth slat 2.9, on the extend to the other side of the first central plane M1.
  • the vertices S1, S2, S8, S9 of these four slats 2.1, 2.2, 2.8, 2.9 each lie next to the second central plane M2.
  • These four fins 2.1, 2.2, 2.8, 2.9 are formed at the upper and lower ends of the packing 1, two fins 2.1, 2.2; 2.8, 2.9 are arranged, each extending to different sides of the first central plane M1, and their vertices S1, S2; S8, S9 are arranged on different sides of the second center plane M2.
  • the filler body comprises a central lamella 2.5, which has a symmetrical arch shape with an apex S5.
  • the apex S5 of this lamella 2.5 is therefore in the second central plane M2.
  • the central lamella 2.5 extends to the rear 7 of the packing 1.
  • the slats 2.1, 2.2, 2.5, 2.8, 2.9 each have only one apex S1, S2, S5, S8, S9, they have a relatively large height and thus form an outer wall or outer Shell of the packing 1.
  • the third lamella 2.3 and the fourth lamella 2.4 are two multiple lamellae.
  • the third lamella 2.3 has an asymmetrical arch shape with three vertices S3.1, S3.2, S3.3, the middle vertex S3.2 extending to another side of the first central plane M1 than the other two vertices S3.1, S3.3.
  • the middle vertex S3.2 is at a greater distance from the first center plane M1 than the other two vertices S3.1, S3.3.
  • the two outer vertices S3.1, S3.3 are both at the same distance from the first central plane 1.
  • the middle vertex S3.2 therefore has a greater height or a larger amplitude than the two outer vertexes S3.1, S3.3.
  • the center vertex S3.2 is to the right of the second center plane M2.
  • the distance from the left crosspiece 3 of the packing 1 to the central apex S3.2 of the lamella 2.3 is therefore greater than the distance from the right crosspiece 4 of the packing 1 to the central apex S3.2.
  • the wavelength of the left region of the lamella 2.3 that is, starting from the left crosspiece 3 to the middle vertex S3.2, is greater than the wavelength of the right region of the lamella 2.3, ie, starting from the middle vertex S3.2 to the right crosspiece 4.
  • the fourth lamella 2.4 is divided into two segments 2.4.1 and 2.4.2.
  • the first segment 2.4.1 extends from the left crosspiece 3 of the packing 1 into the interior of the volume V of the packing 1.
  • the second segment 2.4.2 extends from the right transverse web 4 of the packing 1 into the interior of the volume V of the packing.
  • the two segments 2.4.1, 2.4.2 have a different length, the first, the left segment 2.4.1 being shorter than the second, the right segment 2.4.2.
  • the first segment 2.4.1 extends from the left crosspiece 3 with a concave, ie. H. 2 curved upward in FIG. 2 in the direction of the front side 6 of the packing 1.
  • the first segment 2.4.1 therefore has no apex.
  • the second segment 2.4.2 also points in the direction of the front side 6 of the packing 1, but in a straight line, has an apex S4 and, after the apex S4, extends again relatively straight upwards in the direction of the rear side 7 of the packing 1.
  • the ends of the two segments 2.4.1 and 2.4.2 therefore point in different directions and are spaced apart.
  • the sixth lamella 2.6 is arranged next to the central lamella 2.5.
  • the sixth lamella 2.6 is also divided into two segments 2.6.1, 2.6.2.
  • the two segments 2.6.1, 2.6.2 have different lengths, the first segment 2.6.1 starting from the left crosspiece 3 being longer than the second segment starting from the right crosspiece 4
  • the first segment 2.6.1 extends upward, that is to say in a concave manner, in the direction of the rear side 7 of the packing 1 to an apex S6.
  • the slope of segment 2.6.1 changes direction, that is to say changes its sign, and segment 2.6.1 runs straight from there in the direction of front side 6 of filler 1 and thereby crosses second center plane M2.
  • the second segment 2.6.2 extends, starting from the right transverse web 4, curved downward, that is to say convexly, in the direction of the rear side 7 of the packing 1.
  • the ends of the two segments 2.6.1 and 2.6.2 are spaced apart from one another and lie on different ones Sides of the first central plane M1.
  • the seventh slat 2.7 is again a continuous slat with an asymmetrical arc shape and has three vertices S7.1, S7.2, S7.3.
  • the middle vertex S7.2 lies on a first side of the first center plane M1 facing the rear side 7 of the packing 1, the other two, the outer vertices S7.1, S7.3 lie on the other, facing the front 6 of the packing 1 facing side of the first central plane M1.
  • the middle vertex S7.2 is at a greater distance from the first center plane M1 than the other two vertices S7.1, S7.3.
  • the two outer vertices S7.1, S7.3 are at the same distance from the first center plane M1.
  • the middle vertex S7.2 therefore has a larger amplitude than the two outer vertices S7.1, S7.3.
  • the middle vertex S7.2 is to the left of the second middle plane M2, so that the distance from the first, the left crosspiece 3 to the middle vertex S7.2 is smaller than the distance from the middle vertex S7.2 to the second, the right crosspiece 4 of the packing 1.
  • the left area of the lamella 2.7, i. H. starting from the left crosspiece 3 to the middle vertex S7.2 therefore has a shorter wavelength than the right area of the lamella 2.7, that is to say starting from the middle vertex S7.2 to the right crosspiece 4 of the packing 1.
  • the sixth slat 2.6 and the seventh slat 2.7 are again lower than the edge slats
  • the third, fourth, sixth and seventh lamellae 2.3, 2.4, 2.6, and 2.7 therefore divide the packing 1 transversely to the longitudinal axis L (see FIG. 2). Fluids flowing through the packing 1 in the longitudinal direction are therefore divided or interrupted, so that the formation of fluid channels is avoided and the separation performance is improved.
  • FIG. 3 shows the right side view of the packing 1.
  • the different heights of the nine lamellae 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 can be clearly seen.
  • the first lamella 2.1, the second lamella 2.2, the fifth lamella 2.5, the eighth lamella 2.8 and the ninth lamella 2.9 have approximately the same height, the second lamella 2.2 and the ninth lamella 2.9 being on the other side of the first central plane M1 of the Filler 1 extend as the first lamella 2.1, the fifth lamella 2.5 and the eighth lamella 2.8.
  • the third lamella 2.3, the fourth lamella 2.4, the sixth lamella 2.6 and the seventh lamella 2.7 each extend from the first central plane M1 in both directions of the packing 1 and therefore have a significantly lower height than the other lamellae. Therefore, the packing has a large open projected cross-sectional area in this axis. This can also be seen from FIG. 4, in which the left side view of the packing is shown. All slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 have the same width b. The edge slats 2.1, 2.2, 2.8, 2.9 and the central slat 2.5 are provided with a bead 5. This increases the strength of the packing 1.
  • the lower slats 2.3, 2.4, 2.6, 2.7 have no beads. This results in a functional separation of the slats into the slats 2.1, 2.2, 2.8, 2.9, 2.5, which ensure the strength, and the slats 2.3, 2.4, 2.6, 2.7, which ensure the phase distribution.
  • FIG. 5 shows the front 6 of the packing 1
  • FIG. 6 shows the back 7 of the packing 1.
  • All the slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 run parallel to one another and have the same width b on.
  • the open projected cross-sectional area in this axis is rather small. Only the divided slats 2.4 and 2.6 ensure open areas.
  • FIGS. 7a to 7i each show the individual lamellae in a view perpendicular to the longitudinal axis L of the packing.
  • the first lamella 2.1 is an edge lamella.
  • the first lamella 2.1 has an asymmetrical arch shape with an apex S1.
  • the apex S1 is arranged off-center, ie the distance from the first, ie the left crosspiece 3 to the apex S1 is smaller than the distance from the second, ie the right crosspiece 4 to the apex S1.
  • the lamella 2.1 is bent upwards, ie it has a concave curvature.
  • the lamella 2.1 has a kink.
  • the expression “after “pointing to the back 7 of the packing 1 means. Accordingly, the term “downward” means pointing to the front 6 of the packing 1.
  • the second lamella 2.2 is also an edge lamella.
  • the second lamella 2.2 also has an asymmetrical arc shape with an apex S2, the distance from the first, i.e. H. the left crosspiece 3 to the apex S2 is greater than the distance from the second, d. H. the right crosspiece 4 to the apex S2.
  • the lamella 2.2 is curved downward, that is to say it has a convex curvature, the two lateral transverse webs 3, 4 running upward and the second lamella 2.2 kinking downward only behind it.
  • the third lamella 2.3 is shown in FIG. 7c.
  • the third lamella 2.3 has an asymmetrical arch shape with three vertices S3.1, S3.2, S3.3. Starting from the first, i.e. H. the left crosspiece 3, the third lamella 2.3 extends up to the first outer apex S3.1.
  • the third lamella 2.3 extends relatively straight down from the first outer apex S3.1 and forms an approximately 40 ° angle with the first central plane M1 to the second, the central apex S3.2 and runs from there again relatively straight, approximately enclosing a 55 ° angle with the first central axis M1, up to the third, also an outer vertex S3.3.
  • the middle vertex S3.2 is at a greater distance from the first center plane M1 (see FIG. 2) than the first vertex S3.1 and the third vertex S3.3.
  • the first vertex S3.1 and the third vertex S3.3 have approximately the same distance from the first central plane M1.
  • the distance from the first, i.e. H. the left crosspiece 3 to the middle vertex S3.2 is greater than the distance from the second, d. H. the right crosspiece 4 to the middle vertex S3.2.
  • the two outer vertices S3.1, S3.3 have approximately the same lateral distance from the respective adjacent crosspiece 3, 4. Therefore, the distance from the first outer vertex S3.1 to the middle vertex S3.2 is greater than the distance from the second outer vertex S3.3 to the middle vertex S3.2.
  • the fourth lamella 2.4 is a divided lamella and comprises the two segments 2.4.1 and 2.4.2.
  • the first segment 2.4.1 is shorter than the second segment 2.4.2.
  • the first segment 2.4.1 extends briefly upwards, this length corresponds approximately to the left transverse web 3 and then kinks in the direction of the front side 6 of the filler 1 and is curved upward, ie concave.
  • the second segment 2.4.2 of the lamella 2.4 extends briefly upwards, this corresponds to the right transverse web 4, then bends downwards and runs relatively straight, including a 45 ° angle with the first central plane M1, up to an apex S4.
  • There the direction of the slope of segment 2.4.2 changes and segment 2.4.2 runs straight, including a 70 ° angle with the first median plane M1, up to the end of segment 2.4.2.
  • the ends of the two segments 2.4.1 and 2.4.2 are spaced apart and point in different directions.
  • the fifth lamella 2.5 has a symmetrical arch shape with an apex S5.
  • the apex S5 is therefore at the same distance from the two transverse webs 3, 4.
  • the central lamella 2.5 is curved upwards, ie. H. it has a concave curvature and is formed only on one side of the first central plane M1.
  • the lamella 2.6 shows the sixth lamella 2.6.
  • the ends of the two segments 2.6.1 and 2.6.2 are spaced apart.
  • the segment 2.6.1 on the left in FIG. 7f extends from the left crosspiece 3 with a concave curvature up to a vertex S6 and leads from there downward, essentially along a straight line which is approximately an 80 ° angle with the includes the first central plane M1.
  • the second, the right segment 2.6.2 connects approximately at a 90 ° angle to the right crosspiece 4 and leads from there in a convex curvature inwards and upwards.
  • the ends of the two segments 2.6.1 and 2.6.2 lie on different sides of the first central plane M1.
  • the first segment 2.6.1 is longer than the second segment 2.6.2.
  • the seventh lamella 2.7 is a low lamella with an asymmetrical arch shape with three vertices S7.1, S7.2, S7.3.
  • the lamella 7.2 adjoins the left transverse web 3 at approximately a 90 ° angle, extends straight downward and encloses approximately a 25 ° angle with the first central plane M1 and goes with a curvature into a first lower apex S7.1 about.
  • the lamella 7.2 curves upwards and merges into a straight line which encloses an angle of approximately 75 ° with the first central plane M1.
  • the straight line in turn merges with a central upper vertex S7.2.
  • the lamella 7.2 turns downward again with a slight curvature and changes into a straight line which includes an angle of approximately 75 ° with the first central plane M1 and which with a curvature in one second lower vertex S7.3.
  • the seventh lamella 2.7 merges into a straight section with a curvature first central plane M1 forms an angle of approximately 15 °, and which opens approximately at a 90 ° angle into the right transverse web 4.
  • the first lower vertex S7.1 and the second lower vertex S7.3 have approximately the same distance from the first central plane M1. This distance is smaller than the distance between the middle upper vertex S7.2 and the first middle plane M1.
  • the middle vertex S7.2 therefore has a greater height or a larger amplitude than the lower vertices S7.1 and S7.3.
  • the first lower vertex S7.1 and the second lower vertex S7.3 have the same lateral distance from the middle vertex S7.2.
  • the two lower vertices S7.1 and S7.3 have different distances from the adjacent crossbar 3, 4.
  • the distance from the first lower vertex S7.1 to the left crossbar 3 is smaller than the distance from the second lower vertex S7.3 to the right cross piece 4.
  • the middle vertex S7.2 is at different distances from the cross pieces 3, 4.
  • the eighth lamella 2.8 has an asymmetrical arch shape with an apex S8.
  • the eighth lamella 2.8 curves upwards (concave curvature) to the apex S8.
  • the direction of the slope of the eighth lamella 2.8 changes and the eighth lamella 2.8 again extends downward, merges into a straight region which just merges into the right transverse web 4.
  • the distance from the left crosspiece 3 to the apex S8 is greater than the distance from the apex S8 to the right crosspiece 4.
  • the ninth lamella 2.9 adjoins the left cross section 3 and runs from there with a convex curvature downwards to an apex S9. Starting from the apex S9, the ninth lamella 2.9 extends upwards again and merges into the right transverse web 4.
  • the lamella 2.9 again has an asymmetrical arch shape with an apex S9, that is to say the distance from the left crosspiece 3 to the apex S9 is smaller than the distance from the apex S9 to the right crosspiece 4.
  • the two crossbars 3, 4 always extend slightly obliquely upwards.
  • the nine slats 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 merge seamlessly into the crossbars 3, 4.
  • the slats 2.3, 2.4, 2.6, 2.7, the low slats have a lower height than the slats 2.1, 2.2, 2.5, 2.8, 2.9, the high slats.
  • the crossbars are not part of the slats.
  • Metals for example high-quality steel, are preferably used as materials for the packing.

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

La présente invention concerne un corps de remplissage, en particulier pour des colonnes d'échange de matière et/ou de chaleur qui sont traversées par au moins un écoulement de gaz et/ou au moins un écoulement de liquide, pourvu d'une pluralité de lamelles agencées les unes à côté des autres incurvées vers l'intérieur et/ou vers l'extérieur, chaque lamelle étant reliée à au moins une de ses extrémités aux lamelles situées à côté d'elle. La présente invention a pour objet de réaliser un corps de remplissage amélioré par rapport à l'état de la technique. La solution selon la présente invention consiste en ce qu'au moins une des lamelles présente une forme irrégulière.
EP19755336.5A 2018-08-14 2019-08-13 Corps de remplissage pourvu de lamelles à forme d'arc ou de vague asymétrique Pending EP3837044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018119693.8A DE102018119693A1 (de) 2018-08-14 2018-08-14 Füllkörper
PCT/EP2019/071693 WO2020035484A1 (fr) 2018-08-14 2019-08-13 Corps de remplissage pourvu de lamelles à forme d'arc ou de vague asymétrique

Publications (1)

Publication Number Publication Date
EP3837044A1 true EP3837044A1 (fr) 2021-06-23

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US (1) US11583826B2 (fr)
EP (1) EP3837044A1 (fr)
KR (1) KR102576580B1 (fr)
CN (1) CN112703052A (fr)
CA (1) CA3108844C (fr)
DE (1) DE102018119693A1 (fr)
SG (1) SG11202101379UA (fr)
WO (1) WO2020035484A1 (fr)

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CN113351147A (zh) * 2021-04-25 2021-09-07 浙江卫佳特种钢股份有限公司 一种加强筋超级拉西环

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EP1541229B1 (fr) * 2003-12-10 2014-09-03 Vereinigte-Füllkörper-Fabriken GmbH & co. KG Elément de garnissage pour l'échange de matière et de chaleur
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US11583826B2 (en) 2023-02-21
WO2020035484A1 (fr) 2020-02-20
CA3108844C (fr) 2024-02-06
SG11202101379UA (en) 2021-03-30
CN112703052A (zh) 2021-04-23
DE102018119693A1 (de) 2020-02-20
US20210316270A1 (en) 2021-10-14
KR20210035900A (ko) 2021-04-01
CA3108844A1 (fr) 2020-02-20
KR102576580B1 (ko) 2023-09-08

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