EP1473531B1 - Système de colonne et procédé pour sa réalisation - Google Patents

Système de colonne et procédé pour sa réalisation Download PDF

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Publication number
EP1473531B1
EP1473531B1 EP04005613A EP04005613A EP1473531B1 EP 1473531 B1 EP1473531 B1 EP 1473531B1 EP 04005613 A EP04005613 A EP 04005613A EP 04005613 A EP04005613 A EP 04005613A EP 1473531 B1 EP1473531 B1 EP 1473531B1
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EP
European Patent Office
Prior art keywords
column
coldbox
casing
column system
vessel
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.)
Expired - Lifetime
Application number
EP04005613A
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German (de)
English (en)
Other versions
EP1473531A2 (fr
EP1473531A3 (fr
Inventor
Stefan Wilhelm
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36571458&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1473531(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE10319755A external-priority patent/DE10319755A1/de
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to EP04005613A priority Critical patent/EP1473531B1/fr
Publication of EP1473531A2 publication Critical patent/EP1473531A2/fr
Publication of EP1473531A3 publication Critical patent/EP1473531A3/fr
Application granted granted Critical
Publication of EP1473531B1 publication Critical patent/EP1473531B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F25J3/04945—Details of internal structure; insulation and housing of the cold box
    • 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
    • F25J3/0295—Start-up or control of the process; Details of the apparatus used, e.g. sieve plates, packings
    • 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/30—Details about heat insulation or cold insulation
    • 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box

Definitions

  • the invention relates to a column system according to claim 1.
  • the operating temperature of gas separation plants is generally not equal to the ambient temperature.
  • natural gas or air separation plants are operated at low temperatures below ambient temperature.
  • the separation columns used in such systems are provided with an insulating shell, a so-called cold box.
  • the coldbox has a jacket, which can be single-layer or multi-layered.
  • the gap between the cold box jacket and the outer wall of the column is generally filled with powdery insulating material (for example perlite).
  • the invention has for its object to provide a column system that allows compensation of temperature-induced dimensional changes, while the column is brought to operating temperature and is economically particularly favorable to manufacture.
  • connection is both radial also designed to slide axially, so that the temperature-induced shrinkage of the column is prevented in any direction during cold running of the plant.
  • Separation columns and their containers are usually cylindrical or similar in shape.
  • the terms “column axis”, “axial”, “radial” and “tangential” used here refer to the cylinder axis or a comparable preferred direction of the column.
  • the column axis is vertical in the operation of the column.
  • the “column container” may be wholly or partly formed by the outer wall of the separation column. It can encase one or more columns (for example double or multiple columns), and in addition to the column (s), also other apparatus parts such as capacitors or the like.
  • the invention is basically independent of the shape of the coldbox jacket. It can be used, for example, with cuboid or cylindrical cold boxes. It is particularly preferably used in substantially cylindrical cold boxes. Such cold boxes are used in particular when a column container having, for example, only a single column (for example the high-pressure column or the low-pressure column of a two-column air separator), optionally with a condenser or evaporator associated with this column, separately from other parts of the apparatus the main heat exchanger for cooling the gas to be separated or other separation columns is isolated. In the invention, the load is introduced largely tangentially into the column or into the jacket.
  • the links in the invention are constructed of one or more rigid elements.
  • rigid are here essentially rigid elements such as profiles, strips, plates, pipes, etc. referred to in demarcation of ropes or similar flexible elements.
  • the links may be slidably connected in the axial direction to the column container (and rigidly to the coldbox jacket) or slidable in the axial direction to the coldbox jacket (and rigid with the column container) or slidably in the axial direction to both.
  • the links may be slidably connected in a radial direction to the column container (and rigidly to the coldbox jacket) or slidable in a radial direction to the coldbox jacket (and rigid with the column container) or slidable in the radial direction to both.
  • the connecting members in the axial and / or radial direction slidably connected to the column container and in the axial or radial direction non-positively connected to the coldbox jacket, that is, the column can slide axially or radially relative to the connecting members, which in turn in the axial or radial direction do not move against the coldbox jacket.
  • the connecting members in the axial and / or radial direction slidably connected to the column container and in the axial or radial direction non-positively connected to the coldbox jacket, that is, the column can slide axially or radially relative to the connecting members, which in turn in the axial or radial direction do not move against the coldbox jacket.
  • connecting members There are at least three connecting members arranged in a plane perpendicular to the column axis, preferably there are four, for example, each offset by 90 °. A higher number of links in a plane is possible in principle, but does not lead to a significant improvement.
  • the connecting members each have two spokes arranged at an angle to one another, which are facing the column container at their intersection and the coldbox jacket at their other end.
  • the spokes are formed for example by pipes, such as Cr-Ni round tubes.
  • Both spokes of a link are preferably in an axial plane. The angle between them is for example 0 ° to 160 °, preferably 90 ° to 140 °.
  • the sliding connection between column container (or coldbox jacket) and connecting member can be formed by a non-positively connected to the column container (or the cold box jacket) bar in combination with a non-positively connected to the respective connecting member, the bar embracing guide.
  • the strip preferably runs in the axial direction and may, for example, have a rectangular cross-section, which depends on a correspondingly U-shaped guide is enclosed on three sides. At the two opposite sides, the guide preferably has a slight distance of 0 to 3 mm, preferably 0.5 to 1.5 mm.
  • the guide or the strip may be slidably coated, for example by PTFE inserts.
  • At least a portion of the links in the radial direction is adjustably connected to the coldbox jacket.
  • This measure is used to compensate for tolerances and to avoid complicated fitting work in the event that the coldbox jacket has no perfect cylindrical shape.
  • this type of connection can be made by axially slotting the tube and inserting a sheet frictionally connected to the coldbox shell in the slot. After assembly of the column, this connection is preferably made non-positively, for example by welding. The compensation of temperature-induced changes in length then takes place independently of the compensation of the radial manufacturing tolerances. (Alternatively, a corresponding adjustable connection between the link and the column container could be made if there is a sliding connection between links and coldbox shell.)
  • the system has a substantially tangential to the column container support, which connects at least one radial connecting member with the coldbox jacket.
  • a transport safety device of this type does not have to be removed after installation of the column, if according to the invention there is a sliding connection between the column container on the one hand and the connecting member and support on the other. This simplifies and reduces the cost of installing the column system.
  • substantially tangential is meant here a direction which deviates not more than 45 °, preferably not more than 30 °, most preferably not more than 15 ° from the geometric tangents.
  • the support is connected to a column heater facing portion of the corresponding connecting member. This increases the stability of the transport lock.
  • the invention also relates to a process for the preparation of a column system according to claim 13 or 14.
  • the method according to claim 13 is particularly suitable for the vertical mounting of the column system, but can also be used in horizontal mounting.
  • the invention relates to an application of these methods according to claim 15.
  • a column container 1 is arranged inside a cold box, which has a coldbox jacket 2.
  • the coldbox shell 2 consists in the example of a metal shell 2A, which is welded to a skeleton or reinforced by annular stiffeners (skeleton or Stiffeners are indicated in Figure 1 and 2 as 2B).
  • annular stiffeners skeleton or Stiffeners are indicated in Figure 1 and 2 as 2B.
  • connecting members 3a, 3b, 3c, 3d are arranged in the plane of the drawing and offset in this example by 90 ° to each other. Their essentially identical structure is presented in the detail drawings.
  • the column system preferably has exactly one such ring of link located near the top of the column.
  • one or more identical or similar wreaths can be arranged offset axially.
  • FIG. 2 has the same viewing direction as FIG. On the left, the coldbox jacket 2 with sheath 2A and ring stiffeners 2B is shown, on the right, the outer wall of the column container 1.
  • Three orthogonal arranged Cr-Ni sheets 6, 7, 8 with stiffeners 9, 10 form a guide which encloses a bar formed by a rectangular aluminum lug 11.
  • the strip 11 is connected via a reinforcing plate 12 fixed to the column container 1.
  • the guide 6, 7, 8 can slide perpendicular to the plane of the drawing.
  • the column In order for a relative movement between coldbox jacket 2 and column container 1 in the axial direction is made possible, that is, the column can perform temperature-induced changes in length and diameter unhindered, especially independent of the cold box jacket. At the same time there is a total of a force-transmitting connection perpendicular to the radial and axial shrinkage between the column container and cold box. About this connection, these two parts of the apparatus support each other in the load transfer. This results in a harmonic load transfer in column and coldbox jacket and a mechanical connection between the column container and coldbox jacket for removal of horizontal forces, for example from earthquakes (column on the mantle) or wind forces (mantle to column).
  • the remaining links are substantially identical to those shown in FIGS. 2 and 3.
  • the coldbox can surround the column concentrically.
  • an eccentric arrangement is possible, as shown in Figure 1 - quantitatively exaggerated - is shown;
  • Column axis 15 and coldbox axis 16 are not identical here.
  • FIG. 4 shows the same arrangement immediately after installation at ambient temperature. During cold running of the plant, the column shrinks and slides relative to the cold box along the guide 6, 7, 8 down until the bar 11 has reached the position shown in Figure 3.
  • Figure 6 shows a second embodiment of the invention, in which the angle ⁇ between the two legs 4, 5 of the illustrated connecting member 3 between the column container 1 and coldbox jacket 2 is substantially higher than in the first embodiment. He is here about 125 °.
  • the guide 6 'to the bar 11 is formed here in one piece and consists of a multi-folded sheet metal.
  • the connecting links have a particularly small size.
  • FIG. 7 A pair of substantially tangentially extending supports 18, 18 'as a transport lock for a lying column of the column system is shown in FIG . Otherwise, Figure 7 does not differ from Figure 1.
  • the support 18 is connected near the column end with the connecting member 3.
  • the guide shown in Figure 2 also serves as an abutment for the support 18.
  • the supports 18, 18 'can - in contrast to known transport locks after installation of the unit remain in the cold box. On a complex step to expand the transport safety can be dispensed with.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Packages (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (15)

  1. Système de colonne comprenant au moins une colonne de séparation, un récipient de colonne (1) et une boîte froide, qui présente une enceinte de boîte froide (2), caractérisé par des organes de liaison radiaux (3, 3a, 3b, 3c, 3d) entre le récipient de colonne (1) et l'enceinte de boîte froide (2), qui sont connectés dans la direction axiale et/ou radiale de manière coulissante au récipient de colonne (1) et/ou à l'enceinte de boîte froide (2).
  2. Système de colonne selon la revendication 1, caractérisé en ce que les organes de liaison (3, 3a, 3b, 3c, 3d) sont constitués d'un ou de plusieurs éléments rigides (4, 5, 6, 7, 8, 9, 10, 11, 12, 13).
  3. Système de colonne selon la revendication 1 ou 2, caractérisé en ce que les organes de liaison (3, 3a, 3b, 3c, 3d) sont connecté dans la direction axiale de manière coulissante au récipient de colonne (1) et/ou à l'enceinte de boîte froide (2).
  4. Système de colonne selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les organes de liaison (3, 3a, 3b, 3c, 3d) sont connectés dans la direction radiale de manière coulissante au récipient de colonne (1) et/ou à l'enceinte de boîte froide (2).
  5. Système de colonne selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les organes de liaison (3, 3a, 3b, 3c, 3d) sont connectés (6, 7, 8, 11, 13, 14) dans la direction axiale et/ou radiale de manière coulissante au récipient de colonne (1) et dans la direction axiale respectivement radiale par engagement par force à l'enceinte de boîte froide (2).
  6. Système de colonne selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'au moins trois, en particulier quatre organes de liaison (3a, 3b, 3c, 3d) sont disposés dans un plan perpendiculairement à l'axe de la colonne (15).
  7. Système de colonne selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les organes de liaison (3, 3a, 3b, 3c, 3d) présentent à chaque fois deux rayons (4, 5) disposés angulairement l'un par rapport à l'autre, qui sont tournés au niveau de leur point d'intersection vers le récipient de colonne (1) et au niveau de leur autre extrémité vers l'enceinte de boîte froide (2).
  8. Système de colonne selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la connexion par coulissement est réalisée par une barre (11) connectée par engagement par force au récipient de colonne respectivement à l'enceinte de boîte froide, conjointement avec une coulisse (6, 7, 8) venant en prise autour de la barre, connectée par engagement par force à l'organe de liaison respectif (3, 3a, 3b, 3c, 3d).
  9. Système de colonne selon l'une quelconque des revendications 7 ou 8, caractérisé en ce que la coulisse (6, 7, 8) est connectée par engagement par force au point d'intersection des rayons (4, 5).
  10. Système de colonne selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'au moins une partie des organes de liaison (3, 3a, 3b, 3c, 3d) est connectée (13, 14) dans la direction radiale de manière ajustable à l'enceinte de boîte froide.
  11. Système de colonne selon l'une quelconque des revendications 1 à 10, caractérisé par au moins un support (18, 18') s'étendant essentiellement tangentiellement au récipient de colonne, qui relie au moins un organe de liaison radial (3) à l'enceinte de boîte froide (2).
  12. Système de colonne selon la revendication 11, caractérisé en ce que le support (18) est connecté à une portion de l'organe de liaison correspondant (3) tournée vers le récipient de colonne.
  13. Procédé de fabrication d'un système de colonne selon l'une quelconque des revendications 1 à 12, dans lequel le récipient de colonne est introduit dans la boîte froide de telle sorte que des organes de liaison radiaux (3, 3a, 3b, 3c, 3d) qui sont connectés au récipient de colonne (1) et à l'enceinte de boîte froide (2) coulissent dans la direction axiale le long du récipient de colonne et/ou le long de l'enceinte de boîte froide.
  14. Procédé de fabrication d'un système de colonne selon la revendication 11 ou 12, dans lequel le récipient de colonne est introduit dans la boîte froide, le système de colonne ainsi prémonté est transporté au lieu d'installation et le ou les supports s'étendant essentiellement tangentiellement restent dans la boîte froide après l'installation du système de colonne.
  15. Application du procédé selon la revendication 13 ou 14 pour la fabrication d'un système de colonne selon l'une quelconque des revendications 1 à 12.
EP04005613A 2003-04-30 2004-03-09 Système de colonne et procédé pour sa réalisation Expired - Lifetime EP1473531B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04005613A EP1473531B1 (fr) 2003-04-30 2004-03-09 Système de colonne et procédé pour sa réalisation

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10319755A DE10319755A1 (de) 2003-04-30 2003-04-30 Kolonnensystem und Verfahren zu dessen Herstellung
DE10319755 2003-04-30
EP03012310A EP1473530A1 (fr) 2003-04-30 2003-05-28 Système de colonne et procédé pour sa réalisation
EP03012310 2003-05-28
EP04005613A EP1473531B1 (fr) 2003-04-30 2004-03-09 Système de colonne et procédé pour sa réalisation

Publications (3)

Publication Number Publication Date
EP1473531A2 EP1473531A2 (fr) 2004-11-03
EP1473531A3 EP1473531A3 (fr) 2004-11-24
EP1473531B1 true EP1473531B1 (fr) 2006-05-17

Family

ID=36571458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005613A Expired - Lifetime EP1473531B1 (fr) 2003-04-30 2004-03-09 Système de colonne et procédé pour sa réalisation

Country Status (4)

Country Link
EP (1) EP1473531B1 (fr)
AT (1) ATE326672T1 (fr)
DE (1) DE502004000563D1 (fr)
ES (1) ES2265123T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008014899A1 (fr) * 2006-08-04 2008-02-07 Linde Aktiengesellschaft Procédé de fabrication d'une boîte froide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2030662A1 (fr) * 2007-08-09 2009-03-04 L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Dispositif de support pour une colonne de distillation dans une enceinte isolée
FR2979422A1 (fr) * 2011-08-23 2013-03-01 Air Liquide Appareil et procede de production d'un debit riche en dioxyde de carbone par distillation
FR3102238B1 (fr) * 2019-10-16 2022-11-04 Air Liquide Enceinte de colonne de distillation cryogénique et procédé d’assemblage d’une telle enceinte

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL268746A (fr) * 1960-09-12 1900-01-01
DE2947347A1 (de) * 1979-11-23 1981-05-27 Linde Ag, 6200 Wiesbaden Rektifikationseinrichtung fuer eine um eine nullage schwankende anlage
DE19737520A1 (de) * 1997-08-28 1999-03-04 Messer Griesheim Gmbh Anlage zur Tieftemperaturzerlegung von Luft
FR2775439B1 (fr) * 1997-10-14 2000-04-14 Air Liquide Procede de construction d'une structure interieure de confinement de fluide allongee, de grandes dimensions, et entouree d'une structure exterieure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008014899A1 (fr) * 2006-08-04 2008-02-07 Linde Aktiengesellschaft Procédé de fabrication d'une boîte froide

Also Published As

Publication number Publication date
EP1473531A2 (fr) 2004-11-03
ATE326672T1 (de) 2006-06-15
ES2265123T3 (es) 2007-02-01
EP1473531A3 (fr) 2004-11-24
DE502004000563D1 (de) 2006-06-22

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