WO1996040428A1 - Organe annulaire destine a l'etancheification du bord d'une colonne de transfert de matieres remplie d'un garnissage ordonne - Google Patents

Organe annulaire destine a l'etancheification du bord d'une colonne de transfert de matieres remplie d'un garnissage ordonne Download PDF

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Publication number
WO1996040428A1
WO1996040428A1 PCT/EP1996/002451 EP9602451W WO9640428A1 WO 1996040428 A1 WO1996040428 A1 WO 1996040428A1 EP 9602451 W EP9602451 W EP 9602451W WO 9640428 A1 WO9640428 A1 WO 9640428A1
Authority
WO
WIPO (PCT)
Prior art keywords
edge sealing
packing
container
edge
axial
Prior art date
Application number
PCT/EP1996/002451
Other languages
German (de)
English (en)
Inventor
Anton Moll
Peter Reichenspurner
Helmut Kreis
Original Assignee
Linde Aktiengesellschaft
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 Linde Aktiengesellschaft filed Critical Linde Aktiengesellschaft
Publication of WO1996040428A1 publication Critical patent/WO1996040428A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/324—Tray constructions
    • B01D3/328—Sealing between the column and the trays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • 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
    • B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
    • B01J19/325—Attachment devices therefor, e.g. hooks, consoles, brackets

Definitions

  • the invention relates to a means for edge sealing and a mass transfer column equipped therewith.
  • edge sealing reduces the mass transfer column's ability to move to the edge, they also mean a relatively large outlay when assembling the column, since they are individually attached to the packing in large numbers and in particular in an axial plane of the column (horizontally when in operation column) must be aligned.
  • the invention is therefore based on the object of specifying a means for edge sealing which keeps the outlay in the manufacture of a mass transfer column as low as possible.
  • the double or multiple collar according to the invention is generally designed so that it can exert the edge sealing effect at the full height of a packing layer to be installed with it.
  • the two contact area / repellent combinations expressly mentioned in the claim are often sufficient for this.
  • it is possible to provide more than two such combinations on a means for edge sealing for example three to five. It is then possible, for example, to seal particularly high packing layers with a single collar or to install several packing layers per edge sealing agent.
  • the two contact area / repellent combinations can each be designed like a conventional means for edge sealing (see, for example, US 5154859), that is, each with a continuous ring as a contact area and with punched-out and bent-out tabs attached to its top as a repellent.
  • the means for edge sealing has a stop means which is connected to the lower contact area and points inward beyond it.
  • this attachment means can be applied to an already assembled component, for example on the surface of a previously installed packing layer. After a packing layer has been inserted into the interior of the edge sealing means, the inward-facing part of the stop means remains between the upper end face of the previously assembled packing section and the lower end face of the packing section arranged inside the edge sealing means. This securely fixes the edge sealing agent, the assembled column is largely insensitive to vibrations and in particular has a high portability.
  • EP-A-601257 also uses a means for edge sealing which has a stop means, but without an inwardly pointing section.
  • this known edge sealing means is fixed in the annular gap exclusively by spring forces and no longer by the stop means.
  • the mass transfer column manufactured in this way is therefore only transportable to a limited extent, in contrast to one produced according to the invention, since the edge seals can easily slip in the axial direction due to vibrations.
  • the axial connecting means are preferably designed as relatively narrow webs, the dimensions of which are small perpendicular to the central axis of the ring compared to the circumference of the ring.
  • the axial connection means of an edge sealing means cover less than 5%, preferably about 1% to 5% of the circumference of the ring.
  • the contact areas, the repelling means, the axial connecting means and / or the stop means are made from a single workpiece made of a sheet-like material, for example from an endless belt made of sheet metal.
  • Sheet materials made of aluminum, VA steel or spring steel are particularly suitable as materials.
  • a method for producing such an agent for edge sealing is also part of the invention.
  • the structure is first created by processing an endless belt.
  • contact areas, repelling means and axial connecting means are punched out by machine and, if necessary, the repelling means and / or spacers are preformed by bending and similar measures.
  • the whole thing can then be rolled up again as an endless belt.
  • the material is separated from the endless belt in the required length and formed into a ring when inserted into the column, in which the ends of the section separated from the belt preferably overlap slightly.
  • the invention also relates to a mass transfer column which is equipped with at least one such means for edge sealing.
  • the edge sealing agent described is preferably used in the manufacture of a mass transfer column with the steps described in claim 8.
  • the edge sealing agent according to the invention can be used in the manufacture of a mass transfer column with the steps (a) to (d) mentioned in claim 9.
  • the means for edge sealing is neither attached to the package nor loosely inserted, but is fixed relative to the container in at least one axial direction, preferably in the direction in which the package layer is subsequently introduced (step (c)). This ensures that the edge sealing agent remains in the predetermined position while the package is being pushed inside (step (d)) and that frictional forces regularly act on it in the direction of insertion.
  • the fixing in the direction of insertion can in principle be carried out by any known method, for example by attaching the means for edge sealing to the container and / or to a component that is non-positively connected to the container.
  • the means for edge sealing can be connected to the container or to a component attached to it by spot welding.
  • the means for edge sealing is already fixed in both axial directions in one step and the column is thus transportable.
  • the fixation according to (c) can be achieved very simply by applying a part of the means for edge sealing to a component that is already installed and axially aligned in the container.
  • at least one lifting device is placed on an axial support.
  • the stop means must be non-positively connected to the edge sealing means and, relative to a section of the edge sealing means lying against the tangential outer surface of the packing layer in the assembled state, must point essentially radially inwards.
  • the axial support can be an axial plane, in particular the axial boundary surface of a packing layer that has already been introduced into the container; it can also be formed by the top of a support device, in particular a support device for supporting the packing layer to be introduced, for example by edges of a carrier running perpendicular to the container axis.
  • the newly introduced packing layer rests on the stop means and thus fixes the means for edge sealing in the second axial direction, that is, against displacements against the direction of insertion.
  • the means for edge sealing is thus completely fixed in the axial plane by the packing and cannot slip even when shaken, for example when the assembled column is being transported.
  • the layer of the ordered packing in step (d) is preferably introduced in the form of a plurality of segments which are arranged next to one another in an axial plane in the interior of the means for edge sealing.
  • step (e) the packing layer introduced in step (d) is expanded in the radial direction, so that a force is exerted that the means for edge sealing on the inner wall of the Container presses.
  • the gap between the package and the container shape can be brought to a predefined extent, which is defined, for example, by spacers.
  • a predefined extent which is defined, for example, by spacers.
  • the spreading according to step (e) can be carried out particularly favorably by inserting transparent material between at least one pair of adjacent segments.
  • transparent means the permeability to fluids that flow inside the column during operation, that is to say rising gas and / or flowing down liquid. This permeability must in particular be perpendicular to the container axis.
  • individual lamellae of the material from which the package is constructed, expanded metal or other perforated material can be used as the transparent material.
  • the method described enables a mass transfer column to be packed in a lying position, that is to say in a position in which the axis of the container is oriented essentially horizontally. This is particularly the case with segmented packing Large columns possible and represents a significant simplification, since the inside of the container can be entered easily through its wall. In conjunction with the high transportability, it is possible within the scope of the invention to also manufacture large columns in the workshop and to avoid costly assembly on the construction site.
  • Figure 1 shows an embodiment of a packed according to the invention
  • FIG. 2 shows the mass transfer column from FIG. 1 in cross section
  • FIG. 3 shows a detail from FIG. 1
  • FIG. 4 shows a section of an agent for edge sealing according to the invention
  • FIG. 5 shows the means for edge sealing from FIG. 4 in cross section.
  • the mass transfer column has a container 1 which is constructed essentially in the shape of a cylinder about an axis 10.
  • the inside of the container 1 contains a packing section, which in the example consists of six layers 2a to 2f of an ordered packing.
  • a packing section which in the example consists of six layers 2a to 2f of an ordered packing.
  • any package with corrugated-lamellae made of film-like material can be used, such as the type of package described in DE-A-4209132.
  • a packing layer can consist of a completely prefabricated disc.
  • segmented packing layers as shown in FIGS. 1 and 2 are preferred, in particular in the case of columns of larger diameter.
  • the cross-sectional drawing of FIG. 2 shows, for example, a packing layer 2b with six segments 201 to 206.
  • a supporting device supports the lowermost packing section 2a. It has a support ring 3 which runs around the entire circumference of the column and with which Container 1 is non-positively connected, for example by a welded or soldered connection.
  • Several T-beams 4a to 4e are supported on the supporting ring, on the top of which the pack 2a rests.
  • the support device has a support web 5a, 5b, the upper edge of which lies in the same axial plane as the upper edge of the T-beams 4a to 4e.
  • the support web does not run completely around, but consists of two sections 5a, 5b, which each form a segment of a circle with the two outermost T-beams 4a, 4e.
  • each section 5a of the support web is supported on the support ring 3 via one or more support web feet 6.
  • the section 5a is also non-positively connected to the carrier 4a.
  • the support web 5a, 5b can serve on the one hand to support relatively short pack segments, which otherwise rest only on a carrier 4a, 4e; on the other hand, it has an important function for supporting edge sealing means, which is explained below.
  • FIG. 3 In the gap between the pack and the inner wall of the container there are means for edge sealing 7a, 7b, hereinafter also referred to as double collars (FIG. 3).
  • Figures 4 and 5 show the structure of these double collars in detail. They each have an upper and a lower contact area 8a, 8b, both of which, in the installed state, lie at least partially on the outer circumference of the pack.
  • the two contact areas 8a, 9a are connected by narrow webs 9, which are aligned parallel to the column axis after installation. They are each connected to repelling means 10a, 10b, which are designed as elastically articulated leaves.
  • the sheets 10a, 10b bridge the gap between the packing and the container wall in the assembled column by their upper ends abutting the inner surface of the wall.
  • the double collar has a plurality of feet 11 as stop means, which point downwards and inwards from the lower edge of the lower contact region. Each foot 11 preferably consists of a vertical and a horizontal section.
  • spacers 12a, 12b are arranged on the outside of the contact areas 8a, 8b.
  • they consist of expressions of the material of the contact areas and, in the installed state, define a minimum distance between the packing and the column wall.
  • the spacers can also be formed by additionally applied material, for example as an encircling or partially encircling ring.
  • one or each of the contact areas can be connected to an inward-facing section 13a, 13b. In the installed state, these sections 13a, 13b always lie against the package and thus ensure that the liquid collected by the edge sealing agent is returned to the package.
  • the double collar is preferably produced as an endless belt from a single workpiece made of a film-like material, for example from sheet metal with a thickness of 0.1 to 1.0 mm, preferably 0.2 to 0.5 mm.
  • Spring steel is preferably used as the material.
  • the manufacture of a column proceeds as follows:
  • Lifting means (feet 11) are placed on the upper side of the carrying device, namely on the upper edge of the supporting web 5a, 5b; the collar is thus secured against displacement in the direction of insertion (below in the drawings).
  • the first packing layer 2a is pushed into the interior of the ring formed by the collar, either as a complete disc or in the form of several segments 201 to 206. (The procedure for segment-shaped packing layers is described in more detail below.)
  • the stop means 11 are thus clamped between the carrier and packing layer and thus secure the collar against any axial displacement.
  • the bottom packing layer 2a is thus mounted.
  • the packs can in turn be secured against displacement relative to the column container, for example with tie rods.
  • two separate measures for fixing the package are more favorable: firstly, the expansion by radial pressure, which fixes the package in the radial direction and is described in more detail below with the introduction of a segmented package layer; secondly, fixing in the axial direction by securing the position of the last packing layer by means of a holding-down device which is formed, for example, by holding-down profiles or by a holding-down grate (14 in FIG. 1).
  • a pre-pressure is exerted in the axial direction, while the hold-down device is non-positively connected to the container jacket.
  • Additional packing sections can be installed in the column in the same way.
  • the invention in particular enables the horizontal assembly of mass transfer columns, in which the axis 10 is essentially horizontal.
  • a packing layer must have at least two segments. Transparent material is inserted into the area between the segments, for example additional individual lamellae of the packing material.
  • the spreading can already take place in both radial directions.
  • FIG. 2 shows a packing layer with six segments, an intermediate space 301 which runs in a first radial direction and two intermediate spaces 302, 303 which run in a radial direction perpendicular thereto being filled with transparent material.
  • both the segments 202, 203, 204 and 205 are spread in the first radial direction (horizontally in the drawing of FIG. 2), and also all segments 201 to 206 in the direction perpendicular thereto. This makes it possible to exert an almost uniform pressure on the circumference of the packing layer.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Packages (AREA)

Abstract

L'invention concerne un organe annulaire (7a, 7b) destiné à l'étanchéification du bord d'une colonne de transfert de matières remplie d'un garnissage ordonné (2a-2f), qui présente deux zones de contact annulaires (8a, 8b), une supérieure et une inférieure, qui sont axialement décalées l'une par rapport à l'autre et qui, une fois montées, viennent en contact, en partie au moins, avec les surfaces extérieures tangentielles du garnissage (2a-2f). Chaque surface de contact est respectivement reliée de façon élastique à un déflecteur (10a, 10b) orienté vers l'extérieur qui, une fois monté, est plaqué contre la paroi de la colonne. En outre, des éléments de fixation axiale (9) sont prévus pour assembler les deux surfaces de contact par liaison de force.
PCT/EP1996/002451 1995-06-07 1996-06-05 Organe annulaire destine a l'etancheification du bord d'une colonne de transfert de matieres remplie d'un garnissage ordonne WO1996040428A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520802.1 1995-06-07
DE1995120802 DE19520802C2 (de) 1995-06-07 1995-06-07 Ringförmiges Mittel zur Randabdichtung einer mit einer geordneten Packung gefüllten Stoffaustauschkolonne

Publications (1)

Publication Number Publication Date
WO1996040428A1 true WO1996040428A1 (fr) 1996-12-19

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PCT/EP1996/002451 WO1996040428A1 (fr) 1995-06-07 1996-06-05 Organe annulaire destine a l'etancheification du bord d'une colonne de transfert de matieres remplie d'un garnissage ordonne

Country Status (2)

Country Link
DE (1) DE19520802C2 (fr)
WO (1) WO1996040428A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913192A1 (fr) * 1997-10-30 1999-05-06 Sulzer Chemtech AG Colonne d'échange de matière avec un garnissage
GB2338194A (en) * 1998-06-08 1999-12-15 Norton Chem Process Prod Wall wiper for mass transfer towers
JP2011224560A (ja) * 2010-04-20 2011-11-10 Sulzer Chemtech Ag 物質移動用カラム及び物質移動用カラムのための冠状要素
EP2091622B1 (fr) 2006-12-14 2015-11-04 Uop Llc Activation de zone morte dans un appareil de mise en contact de vapeur et de liquide
WO2017020990A1 (fr) 2015-08-04 2017-02-09 Linde Aktiengesellschaft Dispositif d'étanchéité, colonne d'échange de matière et procédé associé
FR3136384A1 (fr) 2022-06-10 2023-12-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Colonne d’échange de matière et de chaleur équipée de garnissage ondulé-croisé en mousse métallique

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19706981A1 (de) * 1997-02-21 1998-10-15 Gore W L & Ass Gmbh Dichtungselement für gepackte Kolonnen
GB2355212A (en) * 1999-10-12 2001-04-18 Eta Process Plant Ltd Fluid contact apparatus
US8480860B2 (en) * 2008-10-22 2013-07-09 Air Products And Chemicals, Inc. Divided wall columns for smaller sized plants
DE102016002981A1 (de) 2016-03-10 2017-09-14 Linde Aktiengesellschaft Drahtbiegevorrichtung
JP2019513079A (ja) * 2016-03-10 2019-05-23 リンデ アクチエンゲゼルシャフトＬｉｎｄｅ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ 構造化充填物の充填板を物質交換カラムの容器内に挿入するための装置および方法
EP3426369B1 (fr) * 2016-03-10 2022-08-17 Linde GmbH Système d'emballage, colonne d'échange de matière et procédé
EP3718617A1 (fr) * 2019-04-05 2020-10-07 Linde GmbH Colonne d'échange de matière
DE202019002662U1 (de) 2019-06-21 2019-08-27 Linde Aktiengesellschaft Packungsscheibe für eine Stoffaustauschkolonne
DE102021001987A1 (de) 2021-04-15 2022-10-20 Linde Gmbh Verfahren zum Herstellen einer Packungsanordnung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637060A1 (fr) * 1988-09-27 1990-03-30 Inst Francais Du Petrole Elements de garnissage en couches comportant sur deux de leurs faces des canaux croises et leurs caracteristiques
EP0491591A1 (fr) * 1990-12-17 1992-06-24 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Colonne de distillation d'air à garnissage ondulé-croisé
EP0601257A1 (fr) * 1992-12-02 1994-06-15 Sulzer Chemtech AG Elément de jante pour un garnissage d'une colonne d'échange de matière

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630819B1 (fr) * 1988-04-28 1990-12-07 Air Liquide Dispositif d'echange de chaleur et de matiere, son procede de fabrication, cisaille de mise en oeuvre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637060A1 (fr) * 1988-09-27 1990-03-30 Inst Francais Du Petrole Elements de garnissage en couches comportant sur deux de leurs faces des canaux croises et leurs caracteristiques
EP0491591A1 (fr) * 1990-12-17 1992-06-24 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Colonne de distillation d'air à garnissage ondulé-croisé
EP0601257A1 (fr) * 1992-12-02 1994-06-15 Sulzer Chemtech AG Elément de jante pour un garnissage d'une colonne d'échange de matière

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913192A1 (fr) * 1997-10-30 1999-05-06 Sulzer Chemtech AG Colonne d'échange de matière avec un garnissage
US6170805B1 (en) 1997-10-30 2001-01-09 Sulzer Chemtech Ag Collars within a ring gap of a material exchange having a packing
CN1133488C (zh) * 1997-10-30 2004-01-07 苏舍化学技术有限公司 带有填料的物料交换柱
GB2338194A (en) * 1998-06-08 1999-12-15 Norton Chem Process Prod Wall wiper for mass transfer towers
GB2338194B (en) * 1998-06-08 2000-05-03 Norton Chem Process Prod Wall wipers for use in mass transfer towers
EP2091622B1 (fr) 2006-12-14 2015-11-04 Uop Llc Activation de zone morte dans un appareil de mise en contact de vapeur et de liquide
JP2011224560A (ja) * 2010-04-20 2011-11-10 Sulzer Chemtech Ag 物質移動用カラム及び物質移動用カラムのための冠状要素
KR101855193B1 (ko) 2010-04-20 2018-05-08 술저 켐테크 악티엔게젤샤프트 물질 전달 칼럼 및 물질 전달 칼럼용 크라운 요소
WO2017020990A1 (fr) 2015-08-04 2017-02-09 Linde Aktiengesellschaft Dispositif d'étanchéité, colonne d'échange de matière et procédé associé
FR3136384A1 (fr) 2022-06-10 2023-12-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Colonne d’échange de matière et de chaleur équipée de garnissage ondulé-croisé en mousse métallique

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Publication number Publication date
DE19520802C2 (de) 1999-04-01
DE19520802A1 (de) 1996-12-12

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