EP3454958A1 - Dispositif de collecte de liquide, colonne de transfert de matière et procédé de fabrication d'un tel dispositif de collecte de liquide - Google Patents

Dispositif de collecte de liquide, colonne de transfert de matière et procédé de fabrication d'un tel dispositif de collecte de liquide

Info

Publication number
EP3454958A1
EP3454958A1 EP17722687.5A EP17722687A EP3454958A1 EP 3454958 A1 EP3454958 A1 EP 3454958A1 EP 17722687 A EP17722687 A EP 17722687A EP 3454958 A1 EP3454958 A1 EP 3454958A1
Authority
EP
European Patent Office
Prior art keywords
collecting
liquid
support
collection device
profiles
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
EP17722687.5A
Other languages
German (de)
English (en)
Inventor
Karlmann Kanzler
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of EP3454958A1 publication Critical patent/EP3454958A1/fr
Pending legal-status Critical Current

Links

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
    • B01D3/008—Liquid distribution
    • 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
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
    • B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
    • 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
    • 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
    • B01J19/305—Supporting elements therefor, e.g. grids, perforated plates
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04896—Details of columns, e.g. internals, inlet/outlet devices
    • F25J3/04927—Liquid or gas distribution devices
    • 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
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32203—Sheets
    • B01J2219/32275—Mounting or joining of the blocks or sheets within the column or vessel

Definitions

  • Liquid collection device mass transfer column and method for producing such a liquid collection device
  • the invention relates to a fluid collection device, a mass transfer column, in particular for air separation, and a method for producing such a fluid collection device.
  • Mass transfer column has a cylindrical container in which so-called packages are arranged.
  • packages are arranged.
  • disordered packages are beds of defined shaped bodies such as rings, cylinders, calipers or the like. in the
  • Mass transfer column is evenly distributed.
  • EP 0 607 887 A2 describes such a collection and distribution system with a vertically arranged feed tube in which a concentration equalization takes place, and a horizontally arranged main tube, which is set up to distribute the liquid evenly on distribution tubes.
  • the distribution tubes have holes in their underside, through which the liquid is distributed evenly, which also results in a hydraulic compensation.
  • US 2009/0049864 A1 shows a fluid collection device for a
  • the fluid collection device comprises a support ring the support profiles and the supporting profiles are sealed off bottom bottom. At the bottom, upwardly extending vapor outlets are provided.
  • DE 43 14 551 A1 describes a device for a mass transfer column, which is designed such that a support grate, a liquid collector and a gas or steam distributor are combined with each other. Serve for that
  • Support strips for a disordered or structured packing are connected via obliquely employed and mutually staggered gutters with drain wells, between which gas or steam wells are present, the downcomers guide the liquid in collecting ducts.
  • the object of the present invention is to provide an improved liquid collecting device for a mass transfer column available.
  • a liquid collection device in particular a
  • Mass transfer column proposed by liquid flowing through.
  • Fluid collection means comprises a support ring, a plurality of supporting profiles attached to the support ring for supporting the at least one package and a plurality of collecting flutes secured to the support ring for collecting the liquid, the collecting flutes being positioned parallel to the support profiles and the support profiles being arranged to be such are each arranged in a flow shadow of one of the collecting channels.
  • the liquid collection device is suitable for use in a mass transfer column.
  • the package is preferably a structured or ordered package. Between the pack and the liquid collection device can
  • the liquid collection device performs a dual function, namely carrying the package and collecting the liquid flowing through the package. Therefore, the liquid collection device as a loader or
  • the liquid collection device may also be referred to as a liquid collection device.
  • Flow shadow or slipstream is presently a zone of lesser Flow rate on a downstream side of a
  • the support ring is firmly connected to a container of the mass transfer column.
  • the support ring may also be associated with the container.
  • the support ring may be welded to an inner wall of the container.
  • the support ring may be formed as a circumferential ring.
  • the support ring also be
  • the support ring may also be constructed of many individual segments, which may also be spaced apart.
  • the liquid collection device is either introduced into the container of the mass transfer column and the support ring is attached directly to the inner wall of the container or the liquid collection device is introduced into the container of the mass transfer column and the particular first support ring of the liquid collection device is at an already on the
  • the first support ring should preferably not lay the flow cross-sectional area further than the second support ring or not project radially further inwards than the second support ring.
  • the mass transfer column comprises several such elements
  • Each liquid collection device may be associated with at least one package or a plurality of packages arranged one above the other.
  • Each pack may consist of several stacked
  • Packing discs be constructed.
  • the packing disks in turn can be subdivided into individual packing packages.
  • the mass transfer column may also be a rectification or air separation column.
  • the mass transfer column may also be a rectification or air separation column.
  • Mass transfer column a process engineering plant, for example for
  • Nitrogen production or be part of a process plant.
  • each collecting channel is assigned exactly one supporting profile.
  • each support profile is associated with a pair of collecting troughs. Between the pairs of collecting troughs is preferably a collection box of
  • Liquid collecting arranged, in which open the collecting channels.
  • the collecting grooves are adapted to generate the respective flow shadows in a gas flow flowing through the liquid collecting device in a direction opposite to a direction of gravity.
  • the gas stream can also be referred to as vapor stream.
  • Steam is used herein to refer to a chemically pure gaseous material when considered in relation to its liquid or solid state. Steam can be produced by evaporation of a liquid and can be converted back into condensation by condensation.
  • Mass transfer column in countercurrent repeatedly in contact with each other can be with the help of the mass transfer column, the separation effect in comparison to the distillation by a multiple higher.
  • the support profiles are each arranged between two side walls of the respective support profile associated collecting channel.
  • Each collecting trough preferably has a first side wall and a second side wall spaced apart from and parallel to the first side wall. Between the side walls of this connecting soil is provided. A respective transition between one of the side walls and the bottom is preferably rounded. As a result, the collecting channels are particularly streamlined.
  • the collecting grooves are made of a steel sheet.
  • the support profiles are each at least partially disposed within a respective support profile associated collecting channel.
  • at least the second flange is arranged completely within the collecting channel assigned to the respective supporting profile.
  • the mass transfer column can be reduced in height or the number of arranged in the container of the Stoffaustauchkolonne packs can be increased.
  • the support profiles in cross-section I-shaped are provided.
  • the support profiles I-beam or double-T-beam.
  • the support profiles are cost-manufacturable extruded profiles. This allows the
  • Liquid collecting device are manufactured particularly inexpensive.
  • the support profiles each have two flanges and a web connecting the flanges, wherein a first flange facing away from the respective collecting channel tapers in a direction of gravity.
  • tapering means that a cross section of the first flange decreases in the direction of gravity and / or tapers to a point.
  • the first flange is drop-shaped.
  • a drop shape is to be understood as meaning a geometry that tapers from a first, broad end section to a second, narrow end section.
  • the geometry preferably has rounded and / or curved contours.
  • the first flange is particularly streamlined.
  • drop-shaped can also be understood to be triangular or pentagonal, in particular diamond-shaped.
  • the collecting channels are U-shaped in cross section.
  • a U-shape has two opposite side walls, which are interconnected by means of a floor.
  • the collecting troughs may have rounded transitions provided between the respective side walls and the bottom.
  • Collecting troughs each provided at least one cover, which projects at least partially over side walls facing each other of the adjacent collecting grooves.
  • the cover device may have one or more cover plates, which are firmly connected to holding elements.
  • the holding elements are suspended from two adjacent support profiles and preferably welded or riveted thereto.
  • the respective cover plate of a cover can be bent flat or roof-shaped. Furthermore, a plurality of cover plates can be arranged one above the other.
  • second or lower roof-shaped arranged cover plates may be provided with a central gas passage and provided in the direction of gravity above the second cover plates first or upper cover plate.
  • the at least one cover device has lower cover plates, between which a gas passage is provided, which is covered by an upper cover plate, which laterally projects beyond the two lower cover plates.
  • the at least one cover device is suspended on two adjacent support profiles.
  • the retaining elements are provided.
  • the holding elements can be welded to the ends of the cover plates, so that no liquid can flow out through the cover plates end.
  • the liquid flowing through the mass transfer column is introduced into the collecting channels via longitudinal sides of the cover plates
  • the fluid collection device further comprises a collection box attached to the support profiles, into which the collecting channels open.
  • the collecting box is adapted to supply the liquid collected by the collecting channels to a drain pipe.
  • the drain pipe can be arranged with an inlet pipe below the liquid collecting device
  • the collecting channels are arranged with a slope towards the collecting box.
  • the collecting troughs are preferably firmly connected both to the collecting box and to the supporting ring, in particular welded.
  • the collecting troughs are mounted in pairs laterally on the collecting box.
  • the liquid collecting device further comprises a collection box attached to the support profiles, which is provided with at least one feed or withdrawal nozzle.
  • the liquid collecting device further comprises a collecting box attached to the supporting profiles, one of which is arranged inside the collecting box and fastened to the supporting profiles
  • Gas supply pipe comprising.
  • the gas feed box has a bottom, which is preferably provided with drainage openings.
  • the liquid collecting device further comprises a collection box attached to the support profiles, which is provided with at least one feed or withdrawal nozzle.
  • the collecting box also includes a deduction box provided with a trigger neck. The collecting box and the withdrawal box are preferably connected to each other by means of an opening.
  • the liquid collecting device further comprises a plurality of parallel collecting boxes attached to the supporting profiles, into which the collecting channels open.
  • the collecting box is arranged perpendicular to the support profiles.
  • the collecting box is also arranged perpendicular to the collecting channels.
  • the term "perpendicular" is understood here to mean an angle of 90 ° ⁇ 10 °, more preferably of 90 ° ⁇ 5 °, more preferably of 90 ° ⁇ 1 °, more preferably of exactly 90 °.
  • the collecting box is preferably made of an aluminum sheet.
  • the support profiles can be used without collecting troughs and collecting box below the bottom pack in a rectification column, where no collecting function is more necessary, as a pure support grid.
  • the collecting box may be welded at one or both ends to the container and provided with a feeding or withdrawal nozzle.
  • below the header tank at one or both ends of a trigger box may be provided with a drain neck.
  • the collecting box may be provided with at least one laterally arranged withdrawal nozzle.
  • the collecting box can be welded at one or both ends to the container and internally with a
  • Gas feed box which is provided with at least one feed nozzle, be equipped.
  • the gas feed box can have drainage openings for the liquid outlet at the bottom.
  • the liquid collecting device may comprise a plurality of collection boxes arranged in parallel.
  • a mass transfer column in particular for air separation, proposed with a container, at least one arranged inside the container pack and such, disposed within the container liquid collection device.
  • the mass transfer column further comprises a packing arrangement comprising the liquid collection device
  • Liquid distribution device and the at least one pack which is arranged between the liquid collection device and the liquid distribution device.
  • the packing assembly may include a plurality of packages disposed between the liquid collection device and the liquid distribution device. In the direction of gravity, the liquid distribution is above the
  • the mass transfer column may comprise a plurality of such packing arrangements, which are arranged one above the other in the container of the mass transfer column.
  • the discharge pipe of a liquid collecting device is arranged with the inlet pipe one in the direction of gravity below the liquid collecting device
  • the method comprises the following steps: providing a support ring, a plurality of support profiles and a plurality of collecting grooves, and attaching the support profiles and the collecting grooves to the support ring such that the
  • Collecting chutes are positioned parallel to the support profiles and that the support profiles are arranged so that these each in a flow shadow of the
  • the method may also include a step of providing a container and disposing a support ring within the container. When placing the support ring within the container this can be welded to the container.
  • the liquid collection device can first be constructed from the support ring, the support profiles and the collecting channels and the collection box and be collected as a complete unit in the container of the mass transfer column, in which case the support ring is welded to the container.
  • the second support ring may be provided on the container.
  • Liquid collection device may then be a first support ring.
  • the mass transfer column and / or the method also include combinations not explicitly mentioned of features or embodiments described above or below with regard to the exemplary embodiments.
  • the skilled person will also add individual aspects as improvements or additions to the respective basic form of the mass transfer column and / or the process.
  • FIG. 1 shows a schematic sectional view of an embodiment of a
  • Fig. 2 shows a schematic perspective view of an embodiment of a liquid collecting means for the mass transfer column of FIG. 1;
  • Fig. 3 shows a schematic sectional view of the liquid collecting device according to Fig. 2;
  • FIG. 4 shows a schematic sectional view of a further embodiment of a liquid collecting device for the mass transfer column according to FIG. 1;
  • FIG. 5 shows a schematic sectional view of another embodiment of a liquid collecting means for the mass transfer column of FIG. 1;
  • Fig. 6 shows a schematic perspective view of
  • FIG. 7 shows a schematic perspective view of an embodiment of a covering device for the liquid collecting device according to FIG. 5;
  • FIG. 8 shows a schematic sectional view of a further embodiment of a liquid collecting device for the mass transfer column according to FIG. 1;
  • FIG. 7 shows a schematic perspective view of an embodiment of a covering device for the liquid collecting device according to FIG. 5;
  • FIG. 8 shows a schematic sectional view of a further embodiment of a liquid collecting device for the mass transfer column according to FIG. 1;
  • Fig. 9 shows a further schematic sectional view of
  • Fig. 10 shows a schematic perspective view of
  • FIG. 8 Liquid collecting device according to FIG. 8;
  • Fig. 1 1 shows a further schematic perspective view of
  • Fig. 12 shows another schematic perspective view of
  • Fig. 13 shows a schematic perspective view of an embodiment of a covering device for the liquid collecting device according to Fig. 8;
  • FIG. 14 shows a schematic sectional view of a further embodiment of a liquid collecting device for the mass transfer column according to FIG. 1;
  • FIG. 14 shows a schematic sectional view of a further embodiment of a liquid collecting device for the mass transfer column according to FIG. 1;
  • Fig. 15 shows a schematic perspective view of
  • FIG. 16 shows another schematic perspective view of
  • Fig. 17 shows another schematic perspective view of
  • Fig. 18 shows another schematic perspective view of
  • Fig. 19 shows another schematic perspective view of
  • FIG. 20 shows a schematic block diagram of an embodiment of a
  • FIG. 21 is a schematic sectional view of another embodiment of a liquid collecting means for the mass transfer column of Fig. 1;
  • Fig. 22 is a schematic sectional view of another embodiment of a liquid collecting means for the mass transfer column of Fig. 1;
  • Fig. 23 shows a schematic perspective view of
  • Fig. 24 shows another schematic sectional view of
  • FIG. 25 shows a schematic sectional view of another embodiment of a liquid collecting device for the mass transfer column according to FIG. 1;
  • FIG. Fig. 26 shows another schematic sectional view of
  • FIG. 27 shows a schematic plan view of a further embodiment of a liquid collecting device for the mass transfer column according to FIG. 1.
  • FIG. 1 shows a greatly simplified schematic view of an embodiment of a mass transfer column 1.
  • the mass transfer column 1 may be a
  • the mass transfer column 1 may be procedural plant or part of a process plant.
  • the mass transfer column 1 may be a rectification or air separation column. That is, the mass transfer column 1 can for air separation, in particular for
  • the air separation or the Linde process is a technical method for gas separation, which the liquefaction of Gas mixtures such as air and individual atmospheric gases, such as oxygen, nitrogen and argon in large quantities allows and in this sense the
  • Refrigeration in the temperature range of 77 to 100 K is used.
  • rectification is meant a thermal separation process comprising a
  • the mass transfer column 1 comprises a container 2, which is a cylindrical
  • the container 2 may be circular in cross-section or at least approximately circular.
  • the container 2 may be made of an aluminum material or a steel material.
  • the container 2 is made of a
  • the container 2 is cylindrically constructed around a symmetry or central axis 3.
  • a plurality of packing sections, packing beds or packages 4 are arranged one above the other.
  • any number of packages 4 can be arranged one above the other, wherein the packages 4 can be of different heights.
  • the packs 4 can be identical or different design.
  • the number of received in the container 2 packs 4 is arbitrary.
  • the packs 4 are so-called ordered or structured packs 4.
  • Each pack 4 may be constructed of at least one, but in particular of a plurality of stacked ordered or structured packing discs, which are not shown in Fig. 1.
  • the packing disks may in turn be subdivided in each case into a multiplicity of block-shaped packing elements or packing packages.
  • Such structured packages 4 or their packing disks consist of thin, corrugated and / or perforated metal plates or wire nets.
  • the design of the packing discs ensures an optimal exchange between the different phases (liquid / gaseous or liquid / liquid) with minimal pressure resistance.
  • a phase is a spatial domain in which the determining physical parameters,
  • a phase in terms of thermodynamics is any homogeneous part of a system.
  • the packing discs are arranged one above the other in the container 2.
  • the number of packs of discs per pack 4 is arbitrary.
  • the packing discs can be made of vertically arranged, corrugated aluminum sheets. Due to their structure, the packing disks form condensation surfaces on which the air components can condense.
  • the aluminum sheets used may have a thickness of 0.1 mm.
  • a liquid distribution device 5 for uniformly distributing liquid is provided above the package 4.
  • mass transfer column 1 flows liquid in a direction of gravity g from top to bottom through the packing 4. At the same time gas flows against the direction of gravity g from bottom to top through the
  • the mass transfer column 1 can further feed, discharge,
  • Concentration compensation is a constant ratio of the media to be separated, for example from oxygen to nitrogen, to understand the cross-section.
  • a first medium for example of nitrogen
  • a second medium for example of oxygen
  • the liquid distribution device 5 comprises a distributor 6 for uniform distribution of the liquid over the cross section of the container 2 and an inlet pipe 7, by means of which the distributor 6, the liquid is supplied. With the help of the inlet pipe 7 of the concentration equalization is achieved because the entire
  • Liquid flowing in the direction of gravity g down is fed into the inlet pipe 7 and mixed there.
  • the liquid collecting device 8 is arranged below the packing 4 with respect to the direction of gravity g. That is, the pack 4 is between the
  • Liquid distribution device 5 and the liquid collection device 8 is arranged. However, any number of packs 4 can be arranged between the liquid distribution device 5 and the liquid collection device 8.
  • Liquid distribution device 5 the packing 4 and the liquid collecting device 8 form a packing arrangement 9 of the mass transfer column 1.
  • the liquid collection device 8 is firstly adapted to carry the package 4 and the liquid distribution device 5 and at the same time in the
  • the liquid collection device 8 may also be referred to as a carrier collector or a charge collection unit.
  • Liquid collecting device 8 has a drain pipe 10, by means of which the collected liquid can be removed from the liquid collecting device 8.
  • a drain pipe 10 by means of which the collected liquid can be removed from the liquid collecting device 8.
  • Packing arrangements 9 may be arranged one above the other, so that in each case the
  • Drain pipe 10 a liquid collecting device 8 with the inlet pipe 7 a arranged below the respective liquid collecting means 8
  • FIG. 2 shows a schematic perspective view of an embodiment of a liquid collecting device 8 for the mass transfer column 1 according to FIG. 1.
  • the liquid collecting device 8 comprises a support ring 1 1.
  • the support ring 1 1 is a steel or aluminum ring.
  • the support ring 1 1 is disposed within the container 2 and fixedly connected thereto.
  • the support ring 1 1 is materially connected to an inner wall of the container 2.
  • cohesive Compounds are the connection partners held together by atomic or molecular forces. Cohesive connections are non-detachable connections that can only be separated by destroying the connection means.
  • the support ring 1 1 is welded to the container 2.
  • a plurality of support profiles 12 to 16 is provided on the support ring 1 1 .
  • the number of support profiles 12 to 16 is arbitrary.
  • a grid may be placed, which in turn carries the package 4.
  • the weight of the package 4 is thus introduced via the support profiles 12 to 16 and the support ring 1 1 in the container 2.
  • the support profiles 12 to 16 are arranged parallel to each other and spaced from each other.
  • At each support section 12 to 16 may each end a recess 17 may be provided which surrounds the support ring 1 1 at least partially.
  • the support profiles 12 to 16 are firmly connected to the support ring 1 1, for example welded to this.
  • the support profiles 12 to 16 may be made of steel or aluminum.
  • the support profiles 12 to 16 can be cost-effective extruded profiles.
  • the liquid collecting device 8 comprises a trough-shaped
  • Collecting box 18 which is arranged below the support profiles 12 to 16 and fixedly connected to these, for example, welded, is.
  • the collecting box 18 can be clearly seen in FIG.
  • the drain pipe 10 is arranged centrally on the collecting box 18.
  • the liquid collecting device 8 comprises a plurality of collecting channels 19 to 21.
  • the number of collecting channels 19 to 21 is arbitrary.
  • the number of support profiles 12 to 16 corresponds to half the number of collecting channels 19 to 21, so that each support profile 12 to 16 two collecting channels 19 to 21 are assigned.
  • the collecting channels 19 to 21 are in pairs on both sides of
  • the liquid collection device 8 further comprises a plurality of
  • the cover devices 22 to 26 each include a cover plate 27, which may be made of a steel sheet, for example.
  • the cover plate 27 is by means of several holding elements 28, 29 on two adjacent support profiles 12 to 16 suspended.
  • the holding elements 28, 29 may be formed as strip-shaped steel profiles.
  • the holding elements 28, 29 can be welded or riveted, for example, with their associated support profiles 12 to 16 and the respective cover plate 27.
  • the cover plates 27 may each have an upstand 30, 31 at the ends. With the help of the Aufkanteptept 30, 31, a front-side outflow of the liquid is prevented.
  • the covering devices 22 to 26 each cover an intermediate space between two collecting channels 19 to 21.
  • the collecting box 18 is not covered by the covering devices 22 to 26. That is, on both sides of the collecting tank 18, the covering devices 22 to 26 are arranged in pairs.
  • FIG. 3 shows a schematic partial sectional view of the embodiment of FIG.
  • Liquid collection device 8 according to the Fig. 2.
  • Fig. 3 are only two
  • Support profiles 13, 14, two collecting grooves 20, 21 and three covering devices 22 to 24 are shown, to which reference is made in the following.
  • each collecting channel 20, 21 is U-shaped in cross-section and comprises a bottom 34, a first side wall 35 and a second side wall 36 arranged parallel to the first side wall 35 and spaced therefrom.
  • the supporting ring 1 1 faces away from the collecting box 18 , the collecting grooves 20, 21 are closed at the front side fluid-tight by means of a closure plate 37.
  • the collecting grooves 20, 21 are for example as
  • the collecting grooves 20, 21 may be made of a steel sheet. Transitions 38, 39 between the side walls 35, 36 and the bottom 34 may be rounded. Each collecting channel 20, 21 may have a height h 2 o and a width b 2 o. Between adjacent collecting grooves 20, 21, a distance a2o, 21 may be provided.
  • the liquid collecting device 8 has a height h 8 .
  • the cover device 23 may, for example, have a width b23.
  • Liquid collection device 8 therethrough. Contrary to the direction of gravity g, a gas flow GS flows through the liquid collecting device 8.
  • the gas stream GS can also be referred to as vapor stream.
  • the Mass transfer column 1 In operation of the Mass transfer column 1 is the liquid flow FS with the gas stream GS in countercurrent in multiple succession in contact.
  • Mass transfer column 1 as previously explained, energetically favorable, technically less expensive and space-saving than a series connection of
  • the collecting grooves 20, 21 are adapted to, in the opposite
  • Gravity direction g flowing through the liquid collecting device 8 gas flow GS each have a flow shadow 40, 41 to produce.
  • Flow shadow 40, 41 or slipstream is a zone of lesser
  • the support profiles 13, 14 are each arranged in the flow shadow 40, 41 of their associated collecting grooves 20, 21. That is, the support profiles 13, 14 are not directly flowed by the gas stream GS.
  • Each support section 13, 14 is in cross-section I-shaped or double-T-shaped. In particular, the support profiles 13, 14 I-beam or double-T-beam.
  • Carrying profile 13, 14 includes a first flange 42 and a second flange 43 spaced from the first flange 42. Between the flanges 42, 43, a web 44 connecting them is arranged. The flanges 42, 43 and the web 44 are termed Cultured Materials (CPU), and the like. The flanges 42, 43 and the web 44 are termed Cultured Materials (CPU), and the like. The flanges 42, 43 and the web 44 are termed. A width of the web 44 is smaller than a respective width of the flanges 42, 43.
  • the second flange 43 may be rectangular in cross-section with a width b43 and a height h 4 3.
  • the first flange 42 may be drop-shaped in cross section and located in the
  • Rejuvenate gravity direction g As a result, a particularly streamlined geometry is achieved.
  • tapering is meant that the cross section of the second flange 42 becomes smaller in the direction of gravity g.
  • a drop-shaped cross-section is to be understood as meaning a cross-section which tapers from a first end section in the direction of a second end section.
  • the cross section may also have fillets.
  • the first Flange 42 has a width b42 at its widest point.
  • the width b42 may be smaller than the width b43 of the second flange 43.
  • the first flange 42 has a height h 4 2, which may be greater than the height h 4 3 of the second flange 43.
  • the second flange 43 may in cross-section so be designed so that a distance of a center of gravity of a cross-sectional surface of the support sections 13, 14 is equal to the respective center of gravity of the first flange 42 and the second flange 43, whereby the respective support profile 13, 14 is optimized with respect to the absorption of bending stresses.
  • the second flange 42 may further comprise a respective end face 45 facing away from the respective collection channel 20, 21. On the front side 45 of the grid is on which the package 4 is placed. The grate distributes the weight of the
  • a first passage area A1 is provided between the adjacent support profiles 13, 14, a first passage area A1 is provided. Between the web 44 of the respective support profile 13, 14 and the
  • Cover plate 27 is provided a second passage area A2. Between the respective fold 32, 33 of the cover plate 27 and the respective collecting channel 20, 21, a third passage area A3 is provided. A fourth passage area A4 is provided between two adjacent collecting grooves 20, 21. The fourth
  • Passage area A4 has a the distance a 2 o, 2i corresponding width.
  • the gas flow GS flows successively through the passage surfaces A4, A3, A2 and A1 against the direction of gravity. At the same time flows in the opposite direction, that is, in the
  • the support profiles 13, 14 are each at least partially between the
  • the support profiles 13, 14 at least partially within the respective support profile 13, 14 associated collecting channel 20, 21 are arranged. More precisely, at least the second flange 43 of the respective support profile 13, 14 is arranged completely within the respective collecting channel 20, 21. Because the support profiles 13, 14 are arranged in the flow shadows 40, 41 of the collecting grooves 20, 21 assigned to them and not between them, they do not constitute a flow obstacle for the gas flow GS. In this way, the liquid collection device 8 has a comparison with known ones
  • Support profiles 13, 14 has a flow-optimized geometry.
  • Liquid collecting devices used profiles much higher, since the height h 2 o of the collecting grooves 20, 21 for receiving the support sections 13, 14 can be exploited. Compared with often used trapezoidal profiles or cross profiles, the support profiles 13, 14 at approximately the same weight a much higher
  • FIG. 4 shows a schematic partial sectional view of a further embodiment of a liquid collecting device 8.
  • the liquid collecting device 8 according to FIG. 4 differs from the liquid collecting device 8 according to FIG. 3 by an alternative embodiment of the covering devices 22 to 24.
  • Each covering device 22 to 24 comprises an upper or first cover plate 46, which is bent roof-shaped. In the direction of gravity g below the upper
  • Cover plate 46 are two spaced apart and also roof-shaped arranged lower or second cover plates 47, 48 are provided. Between the second or lower cover plates 47, 48, an additional gas passage 49 is provided. Due to the roof-shaped configuration of the cover plates 46, 47, 48, a particularly good outflow of liquid into the collecting grooves 20, 21 is achieved. Due to the roof-shaped construction with the additional gas passage 49, a larger gas passage through the liquid collecting device 8 can be achieved.
  • FIG. 5 shows a schematic partial sectional view of a further embodiment of a liquid collecting device 8
  • FIG. 6 shows a schematic perspective view of this liquid collecting device 8
  • Liquid collecting device 8 according to FIGS. 5 and 6 differs from the liquid collecting device 8 according to FIG. 3 in that the
  • Covering device 23 comprises a roof-shaped curved cover plate 50, and in that the support profiles 13, 14 have a modified cross-section.
  • the support profiles 13, 14 according to FIG. 5 differ from the support profiles 13, 14 according to FIG. 3 in that the second, arranged within the respective collecting channel 20, 21, flange 43 is not cuboid, but band-shaped.
  • the width b43 of the second flange 43 is significantly greater than the width b42 of the first flange 42.
  • the top of the flange 43 has a slope, so that liquid can drain into the collecting channel 20, 21.
  • the first flange 42 also tapers in the direction of gravity g and has a triangular geometry in cross section. Due to the triangular geometry of the first flange 42, the determining second passage area A2 can be increased.
  • the cover plates 50 of the cover devices 22 to 26 are welded tightly to the support ring 1 1.
  • the holding element 28 at the end of the covering plate 50 is welded thereto.
  • Cover plate 50 are dispensed with. 8 and 9 each show a schematic partial sectional view of another embodiment of a liquid collecting device 8.
  • FIGS. 10 to 12 each show schematic perspective views of this liquid collecting device 8 and
  • FIG. 13 shows a schematic perspective view of a
  • the embodiment of the fluid collection device 8 according to FIGS. 8 to 12 differs from the fluid collection device 8 according to FIGS. 5 and 6 in that the cover devices 22 to 24 each have an upper or first roof-shaped curved cover plate 46 and two in the direction of gravity g below the first cover plate 46 arranged lower or second cover plates 47, 48 having a central gas passage 49.
  • the cover devices 22 to 24 comprise, in addition to the roof-shaped curved cover plates 46, 47, 48, at least one retaining element 28, 29 on which the
  • Cover plates 46, 47, 48 are welded. Front side, that is, facing the support ring 1 1, the covering 22 to 24 further include a with the
  • Cover plates 46, 47, 48 welded end plate 51, which prevents flow of liquid toward the support ring 1 1. It also prevents that
  • FIG. 14 shows a schematic sectional view of a further embodiment of a liquid collection device 8.
  • the liquid collection device 8 according to FIG. 8 differs from the liquid collection device 8 according to FIGS. 5 and 6 only in that the support profiles 13, 14 have changed
  • the first flange 42 of the support profiles 13, 14 is not triangular, but pentagonal or diamond-shaped.
  • the first flange 42 comprises the end face 45 facing away from the respective collecting channel 20, 21, two first side walls 52, 53 extending obliquely away from the front side 45, and two second walls adjoining the first side walls 52, 53
  • FIGS. 15 to 20 show an embodiment of a method for producing such a mass transfer column 1 or for producing such a liquid collection device 8.
  • FIGS. 15 to 20 refer to FIG.
  • a first step S1 the container 2, the support ring 1 1, a plurality of support profiles 12 to 16 and a plurality of collecting channels 19 to 21 are provided or manufactured.
  • the container 2 can be constructed from a plurality of container sections or shell sections.
  • the support ring 1 1 can be arranged in a step S2 within the container 2.
  • the support ring 1 1 can with a
  • Inner wall of the container 2 are welded.
  • the support profiles 12 to 16 are arranged on the support ring 1 1 and firmly connected thereto, for example, welded thereto.
  • the recesses 17 may be omitted if the support profiles 12 to 16 are used as a support grid without collecting properties. In this case, the support ring 1 1 can be arranged correspondingly deep.
  • the support profiles 12 to 16 are positioned parallel to each other.
  • the collecting box 18 is mounted from below to the supporting profiles 12 to 16, in particular welded. Between the later to be mounted collecting troughs 19 to 21 provided Kastenblech supernatants 56 can be bent in the direction of an inside of the collecting tank 18 to facilitate the flow from the bottom up gas stream GS the passage to the open area above the collecting box 18 and thereby the
  • a web 57 is provided for fastening a respective collecting trough 19 to 21 between two box plate projections 56.
  • a step S5 as shown in FIGS. 17 and 18, the collecting channels 19 to 21 mounted in the collecting box 18 and firmly connected to both the collecting box 18 and with the support ring 1 1, in particular welded.
  • the collecting channels 19 to 21 are mounted with a slope to the collecting box 18.
  • the collecting troughs 19 to 21 are the
  • steps S3 and S5 the support profiles 12 to 16 and the collecting grooves 19 to 21 are attached to the support ring 1 1, that the collecting grooves 19 to 21 are positioned parallel to the support profiles 12 to 16 and that the supporting profiles 12 to 16 arranged in that they are respectively arranged in the flow shadow 40, 41 of one of the collecting channels 19 to 21.
  • the collecting channels 19 to 21 are welded to the collection box 18 tightly with this. Depending on the requirement, a tack weld is sufficient.
  • a concluding step S6 as shown in FIG. 19, the covering devices 22 to 26 are inserted and the holding elements 28, 29 are welded to the supporting profiles 12 to 16.
  • the cover means 22 to 26 are arranged, however, do not cover the collecting box 18 upwards.
  • the collecting channels 19 to 21 are positioned in pairs on the collecting box 18. That is, everyone
  • Support profile 12 to 16 are assigned two collecting channels 19 to 21 and two cover devices 22 to 26.
  • FIG. 21 shows in a schematic sectional view a further embodiment of a liquid collecting device 8.
  • a collecting box 18 is provided, which is on one side up to the inner wall of the
  • Container 2 introduced and welded to the container 2.
  • a feed nozzle 58 in particular a gas feed nozzle, is provided, can be supplied through the gas.
  • FIG. 22 shows in a schematic sectional view a further embodiment of a liquid collecting device 8.
  • FIG. 23 shows a schematic
  • FIG. 24 shows another schematic sectional view of the liquid collection device 8.
  • Difference to the liquid collecting device 8 according to FIG. 21 has this Liquid collection device 8 a gas feed box 59 which is fixedly connected to the support profiles 12 to 16 and which is positioned within the collecting tank 18.
  • the feed nozzle 58 opens into it.
  • the gas feed box 59 comprises a bottom 60 with drainage openings 61.
  • the collecting channels 19 to 21 open into the collecting box 18 and not in the
  • Gas feed box 59 into it. Directly into the gas feed box 59, liquid drips from the pack 4, which runs through the discharge openings 61.
  • FIGS. 25 and 26 each show, in schematic sectional views, a further embodiment of a fluid collection device 8
  • Liquid collection device 8 in contrast to the
  • Liquid collection device 8 according to FIG. 21 additionally one more
  • Trigger box 62 with a provided on the container 2 vent 63 for withdrawing liquid.
  • the withdrawal box 62 is in fluid communication with the collection box 18 via an opening.
  • FIG. 27 shows a schematic plan view of a further embodiment of a liquid collecting device 8.
  • this liquid collecting device 8 has two collection boxes 18, 18 'arranged in parallel with two supply nozzles 58, 58'. In the headers 18, 18 'open the collecting channels 19 to 21.
  • Liquid collecting device 8 is preferably used for large container diameters application. Although the present invention has been described with reference to embodiments, it is variously modifiable.

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

Abstract

L'invention concerne un dispositif de collecte de liquide (8), notamment une unité de collecte support destinée à collecter un liquide circulant à travers un garnissage (4) d'une colonne d'échange de matière (1), le dispositif de collecte de liquide (8) comprenant une bague support (11), une pluralité de profilés support (12 - 16) fixés à la bague support (11), destinés à porter l'au moins un garnissage (4), et une pluralité de goulottes de collecte (19, 21), fixées à la bague support (11), destinées à collecter le liquide. Les goulottes de collecte (19, 21) sont disposées parallèlement aux profilés support (12 - 16) et les profilés support (12 - 16) sont disposés de manière à être agencés respectivement dans une zone d'ombre d'écoulement (40, 41) d'une des goulottes de collecte (19, 21).
EP17722687.5A 2016-05-12 2017-05-11 Dispositif de collecte de liquide, colonne de transfert de matière et procédé de fabrication d'un tel dispositif de collecte de liquide Pending EP3454958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16001078 2016-05-12
PCT/EP2017/025121 WO2017194203A1 (fr) 2016-05-12 2017-05-11 Dispositif de collecte de liquide, colonne de transfert de matière et procédé de fabrication d'un tel dispositif de collecte de liquide

Publications (1)

Publication Number Publication Date
EP3454958A1 true EP3454958A1 (fr) 2019-03-20

Family

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Application Number Title Priority Date Filing Date
EP17722687.5A Pending EP3454958A1 (fr) 2016-05-12 2017-05-11 Dispositif de collecte de liquide, colonne de transfert de matière et procédé de fabrication d'un tel dispositif de collecte de liquide

Country Status (4)

Country Link
US (1) US11040293B2 (fr)
EP (1) EP3454958A1 (fr)
CN (1) CN109414626B (fr)
WO (1) WO2017194203A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111434366B (zh) * 2019-01-11 2021-12-17 中国石油化工股份有限公司 隔壁塔及精馏塔
CN111434367B (zh) * 2019-01-11 2021-12-17 中国石油化工股份有限公司 隔壁塔及精馏塔
FR3100320B1 (fr) * 2019-09-02 2022-02-18 Air Liquide Dispositif de distribution destiné à une colonne de séparation gaz/liquide
US11609051B2 (en) 2020-04-13 2023-03-21 Harold D. Revocable Trust Apparatus for cooling liquid and collection assembly therefor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744929A (en) 1986-07-17 1988-05-17 Norton Company Support device for a packed column
FR2655877B1 (fr) 1989-12-14 1994-09-16 Air Liquide Distributeur de fluides pour colonne d'echange de chaleur et de matiere, notamment a garnissage, et colonne munie d'un tel distributeur.
DE4314551A1 (de) 1993-05-04 1994-11-17 Stahl App & Geraetebau Gmbh Vorrichtung zum Sammeln und Verteilen von Gas und Flüssigkeit in Stoffaustauschkolonnen
US6749182B1 (en) * 2002-11-25 2004-06-15 Praxair Technology, Inc. Bolted collector for vapor liquid contacting vessel
US7007932B2 (en) * 2003-07-25 2006-03-07 Air Products And Chemicals, Inc. Wall-flow redistributor for packed columns
US8408026B2 (en) * 2007-08-21 2013-04-02 Air Products And Chemicals, Inc. Liquid collector and redistributor for packed columns
US8585024B2 (en) * 2009-08-26 2013-11-19 Aggreko, Llc Cooling tower
US8317166B2 (en) 2010-11-10 2012-11-27 Koch-Glitsch, Lp Liquid collection and distribution device for mass transfer column and process involving same
CA2855714C (fr) * 2011-11-14 2019-05-21 Basf Se Plateau pour une colonne de transfert de masse
EP2826532A1 (fr) * 2013-07-18 2015-01-21 Sulzer Chemtech AG Collecteur de mélange de liquide et son procédé d'utilisation
CN106999794B (zh) * 2014-12-02 2019-10-18 林德股份公司 用于填料塔的支承件
EP3265195A1 (fr) * 2015-03-05 2018-01-10 Linde Aktiengesellschaft Collecteur de support pour colonne à garnissage
US9815040B2 (en) * 2015-06-26 2017-11-14 Dow Global Technologies Llc Fluid solids contacting device

Also Published As

Publication number Publication date
CN109414626A (zh) 2019-03-01
US11040293B2 (en) 2021-06-22
CN109414626B (zh) 2022-01-04
US20190143242A1 (en) 2019-05-16
WO2017194203A1 (fr) 2017-11-16

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