CN1906456A - Support for a tube bundle - Google Patents

Support for a tube bundle Download PDF

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Publication number
CN1906456A
CN1906456A CNA2004800407544A CN200480040754A CN1906456A CN 1906456 A CN1906456 A CN 1906456A CN A2004800407544 A CNA2004800407544 A CN A2004800407544A CN 200480040754 A CN200480040754 A CN 200480040754A CN 1906456 A CN1906456 A CN 1906456A
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CN
China
Prior art keywords
support
supporting member
expanded metal
segmental baffle
pipe
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
CNA2004800407544A
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Chinese (zh)
Inventor
S·W·约翰斯顿
D·F·米尔德
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of CN1906456A publication Critical patent/CN1906456A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0135—Auxiliary supports for elements for tubes or tube-assemblies formed by grids having only one tube per closed grid opening
    • F28F9/0136—Auxiliary supports for elements for tubes or tube-assemblies formed by grids having only one tube per closed grid opening formed by intersecting strips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
    • F28F2009/226—Transversal partitions

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

A support for a bundle of tubes, which support comprises a plurality of transverse support plates spaced apart along the direction of the tubes to be supported, and which support plates are provided with openings for accommodating the tubes, wherein the plurality of support plates comprises segmental baffle support elements and expanded metal support elements.

Description

The tube bank supporting member
Technical field
The present invention relates to a kind of tube bank supporting member, particularly a kind ofly comprise a plurality of supporting members that are called the apart transverse support plates of segmental baffle (segmental baffle), described apart transverse support plates is along treating that the direction of supporting pipes separates.
Background technology
The main application fields of tube bank is in shell-and-tube exchanger.Shell-and-tube exchanger comprises hydrostatic column, and its internal configurations has along the tube bank of this container longitudinal extension.Particularly, this tube bank can be a branch of parallel pipe, therefore is also referred to as tube bank.
As everyone knows, shell-and-tube exchanger is an indirect heat exchanger, and wherein, heat transmits between the fluid (shell-side) of the fluid (pipe side) of the pipe of the tube bank of flowing through and the pipe space outerpace of flowing through.For example in Perry ' s Chemical Engineers ' Handbook, 6 ThEdition, 1984, McGraw-Hill Inc. can find the detailed description of shell-and-tube exchanger among the page 11-3 to 11-21.Tube bank is the heat exchanger most important parts.The end of pipe is fixed on the tube sheet.Heat exchanger can comprise two tube sheets, all has a tube sheet on each end of hydrostatic column, if perhaps heat exchanger is a U type heat exchange of heat pipe, has single tube sheet at an end of hydrostatic column.
Should be appreciated that the mid portion of pipe also must be supported, for example be used to prevent since the vibration that causes of fluid stream to infringement that pipe caused.For the mid portion of supporting pipes, pipe support generally includes axially spaced apart transverse support plates.Support plate also is known as support sheet or supported diaphragm sometimes.
The present invention relates to comprise the heat exchanger of so-called segmental baffle as support plate.In above-mentioned Perry ' s handbook, several segmental baffle have been discussed.Traditional segmental baffle is made by the circular metal plate of excision circular portion (" window "), and a plurality of openings that pipe can be passed are gone out or cut out to the remainder that passes this plate.Sometimes on opposite side, downcut two circular portions, for example be used for that so-called bouble-bow shape dividing plate is provided with or window in during no pipe is provided with.
Segmental baffle is supporting pipes not only, but also the fluid stream of shell-side is passed in influence.Therefore, the design of dividing plate is also considered to decide from heat transfer situation.When wishing in housing, to produce the crossing current (cross-flow) of a certain amount of fluid in the tube bank, use the segmental baffle pipe support for making the optimized consideration of heat transfer.
Within certain limited field, the design of segmental baffle can adapt to the particular requirement of special practical application.For example can select so-called dividing plate breach especially, it is cut percentage with the circular diameter that forms segmental baffle.Large baffle breach in the single segmental baffle provides less pressure drop, yet the major part of passing the pipe of window is not supported.Usually, people attempt to make that by coming supporting pipes every a segmental baffle at least the maximum dividing plate breach that adopts usually is 45%.
When pipe passed window, the maximum unsupported length of pipe (" no supporting pipes length ") doubled the spacing between the segmental baffle at least.Therefore, have plenty of admittedly for the segmental baffle pipe support: the quantity of support plate is only from the twice of mechanical support viewpoint requirement at least.Segmental baffle can influence the cost of heat exchanger widely, so people attempt to make the spacing maximization between the dividing plate.When no supporting pipes length becomes excessive, will cause vibration problem.
In other heat exchanger designs, there is not pipe to pass window.For example, in very high vertical heat exchanger (for example in large-scale production process, being used as those heat exchangers supply/outflow heat exchanger, that be known as " texas tower "), single segmental baffle is usually with specific pitch arrangement, and window alternately is positioned on the relative side so that realizing desirable fluid crossing current form in the tube bank of housing.Because for consideration to optimal fluid flow and best fluid power characteristic (particularly minimum pressure drop), desirable spacing supports needed spacing much larger than the good mechanical that overcomes vibration, so between independent segmental baffle, place a plurality of additional arch support dividing plates, but each supported diaphragm has two windows.These additional elements have accounted for sizable cost of whole pipe support.
Publication number is that the Japanese patent application of No.05-296680 has been described a kind of supported diaphragm, and wherein, the laths of metal of a plurality of cooperations is arranged in the window to suppress vibration.Because all needed special shapes of single metal lath, so production cost is very high.
Summary of the invention
The purpose of this invention is to provide a kind of tube bank supporting member, it makes simpler (more cheap) mechanical support can overcome vibration in the segmental baffle pipe support.
For this reason, the invention provides a kind of tube bank supporting member, this supporting member comprises a plurality of apart transverse support plates that separate along the direction for the treatment of supporting pipes, and described plate has the opening that is used to hold pipe, wherein, described a plurality of support plate comprises segmental baffle support element and expanded metal (expanded metal) supporting member.
The applicant has realized: the part mechanical support function in the segmental baffle pipe support needn't be provided by traditional segmental baffle element, and can advantageously be provided by the porous metals panel element.Owing to use still less material, generation cutting and needs work still less still less, make that like this expanded metal can be with the cost manufacturing far below segmental baffle.The present invention allow pipe support is designed so that segmental baffle is placed on since fluid stream former thus need they and they the position of mechanical support also is provided.Further mechanical support (being used in particular for preventing vibration) can be provided by the porous metals panel element.The influence of expanded metal fluid flow is much smaller than segmental baffle.
Like this, the present invention allows to have greater flexibility in the design segmental baffle heat exchangers.Basic design parameters such as the heat exchanger of pipe sizing and layout (for example triangle or square pitch), housing diameter, segmental baffle size and spacing can be selected according to fluid stream, heat transfer property and the pressure drop of the best, and need not to consider vibration factor.According to the present invention, the vibration problem that may run into can solve by the expanded metal supporting member is set.
Term " supporting member " is used to represent the part of support plate in specification and claims, or refers to whole support plate.
Expanded metal supporting member and segmental baffle support element can form combined support plate together.For this reason, expanded metal can be arranged as the window that strides across segmental baffle support element.Like this, can on the entire cross section of support plate, provide mechanical support, but fluid can only flow through window.Because expanded metal also applies some metering functions, but this metering function is very little, and what may need is the size that increases window with respect to traditional arch support dividing plate slightly.
Also possible is: the expanded metal supporting member of expanded metal support plate form is arranged between two segmental baffle support element, as additional mechanical support.
In another embodiment, expanded metal support plate itself can be bowed shape, forms one or more windows thereby promptly can downcut one or more parts.This is not having pipe to pass from the window of segmental baffle, and wishes that it is favourable that additional mechanical supporting member fluid flow between the segmental baffle produces in the design of least interference.
The pipe support that only is made of the expanded metal supporting member is disclosed in publication number is the international patent application of No.WO 03/067170.Yet the disclosure document does not relate to the vibration problem in traditional segmental baffle heat exchangers, and does not have to disclose or advise the combination of traditional segmental baffle and expanded metal supporting member.
Description of drawings
Now with reference to accompanying drawing the present invention is described more specifically, wherein
Fig. 1 has schematically shown by having the longitdinal cross-section diagram according to first embodiment of the heat exchanger of supporting member of the present invention;
Fig. 2 has schematically shown along the sectional view of II-II line among Fig. 1;
Fig. 3 has schematically shown along the sectional view of III-III line among Fig. 1;
Fig. 4 has schematically shown the arch support dividing plate;
Fig. 5 has schematically shown the combination support dividing plate that is made of segmental baffle support element and expanded metal supporting member;
Fig. 6 has schematically shown by having the longitdinal cross-section diagram according to second embodiment of the heat exchanger of supporting member of the present invention;
Fig. 7 has schematically shown along the sectional view of VII-VII line among Fig. 6;
Fig. 8 has schematically shown along the sectional view of VIII-VIII line among Fig. 6;
Fig. 9 has schematically shown another arch support dividing plate;
Figure 10 has schematically shown the traditional segmental baffle as the intermediate support plates in the texas tower (Texas tower);
Figure 11 has schematically shown according to expanded metal support plate in the middle of of the present invention;
Figure 12 has schematically shown by having the longitdinal cross-section diagram according to the 3rd embodiment of the heat exchanger of supporting member of the present invention; With
Figure 13 has schematically shown according to another expanded metal supporting member of the present invention.
Identical mark is used to represent identical or similar object in the accompanying drawings.
The specific embodiment
With reference to figure 1-5.Fig. 1 has shown in the longitudinal cross-section the vertically part of shell and tube heat exchanger 1, and Fig. 2 and 3 has shown two sectional views being done along II-II line and III-III line respectively.Heat exchanger 1 has housing 3 and tube bank 5, and the pipe 8,9,10,11,12,13,14 in this tube bank is visible in Fig. 1.The supporting member of tube bank 5 comprises four support plates 18,19,20,21 shown in Fig. 1.Described support plate is along the distance L of length direction to fix of pipe 8-14 1Separate each other.
Support plate 18,19 and 21 is as amplifying the traditional segmental baffle that shows among Fig. 4.These segmental baffle are made by the cut plectane 25 of a part and are made to form window when it is installed in the heat exchanger, as window 28.On remaining plate 25, cut opening 30.
Support plate 20 is the combined support plate that shows in detail as Fig. 5.Combined support plate 35 is formed by segmental baffle support element 38 and expanded metal supporting member 40, and this expanded metal supporting member 40 is across the window 42 that opens wide that is stayed by segmental baffle support element 38.Porous metals panel element 40 for example can be soldered to segmental baffle element 38 and being with on 45 around window 42.Be with 45 itself also to can be soldered on the segmental baffle element, but also can be for example to form remainder after the segmental baffle 38 from the initial plectane by milling.
Expanded metal is well-known material, and it can be by providing metallic plate with notch features and making with this slit sheet metal of after-drawing.Formation has the cross battens structure in gap, and this cross battens is formed by so-called strand of material and bond.Therefore the layout of otch and length and level of stretch have been determined size, shape and the positioned opposite in described gap, and this gap can be designed so that pipe can pass them and supported best.
Usually, the thigh material between the adjacent bonds compound is stranded beyond the plane of original metal plate, has reduced the constraint that the fluid perpendicular to this piece expanded metal is flowed like this.
Support plate 20 in the whole cross section of housing 3, promptly also in window 42, supporting pipes mechanically.Therefore, the no supporting pipes length of pipe 8, for example the length between the support plate 19 and 21 is L 1Contrast, for example the no supporting pipes length of the pipe between the support plate 18 and 20 14 is 2L 1Like this, the present invention can be used for reducing not have the tube length of supporting so that suppress vibration.If the more or all support plates in the heat exchanger 1 are combined support plate 35, from the viewpoint of machinery, the spacing that strengthens between the support plate is possible.
With reference now to Fig. 6-11,, and the second embodiment of the present invention is discussed.
Fig. 6 shown the part of the Texas's tower heat exchanger 101 that is in the longitudinal cross-section, and Fig. 7 and 8 has shown two sectional views of being done along VII-VII line and VIII-VIII line respectively.Heat exchanger 101 has vertical cylindrical housings 103 and runs through the tube bank 105 of housing 103 cores.Pipe 108,109 and 110 is visible in Fig. 6.Texas tower for example can have 24 meters height and 2.5 meters diameter.
The supporting member of tube bank 105 comprises five support plates 117,118,119,120,121 as supporting member shown among Fig. 6.Described support plate separates each other along the length direction of pipe 108-110.
Support plate 117 and 121 is as amplifying the traditional segmental baffle 124 that shows among Fig. 9.These segmental baffle are made and the feasible window 127,128 that forms when being installed in corresponding plate in the heat exchanger 101 by downcutting a part of plectane 125 along 126 lines.Described window is arranged on the opposite side in the heat exchanger as shown in the figure.According to the size and the layout of pipe 105, on remaining plate 125, cut opening 130.Because heat exchanger as shown in Figure 6 101 be designed to no cast design in the so-called window, do not have arrange openings in the part 131 relative with described window.
Spacing L between the segmental baffle 2So be chosen to obtain best fluid stream, thus, the fluid that wherein passes window 127 and 128 crosses tube bank 105.L 2Representative value be 1.5 meters.If spacing L 2Excessive for preventing tube vibration, additional intermediate support plates is installed in traditional texas tower, be similar to the plate 133 shown in Figure 10.Plate 133 is for the arch support dividing plate and have the opening 134 that is used for pipe, the cut two parts of the two opposite sides of described arch support dividing plate.This additional intermediate support plates for example is installed in as on the same position as shown in the plate 118,119,120, and makes window be labeled as window 127 and 128.
Yet, shown in Fig. 6-8 according to embodiments of the invention in, intermediate support plates 118,119 and 120 is the expanded metal support plate, is similar to the plate 135 that schematically shows among Figure 11.
Plate 135 is formed by the arc expanded metal 136 of a pair of, and this expanded metal is welded on support ring 138 and the supporting strap 140 so that form window 142 and 143.Support plate 135 can be made more cheaply than conventional intermediate plate as shown in Figure 10 134.
With reference now to Figure 12-13,, and the third embodiment of the present invention is discussed with reference to these accompanying drawings.
Horizontal heat exchanger 201 with housing 203 is the example of this design, and wherein, tube bank 205 is passed housing 203 and extended.Figure 12 has shown the part of longitudinal cross-section, it is to be understood that heat exchanger can be longer, and can arrange than more support plate shown in the figure.Tube bank 205 comprises pipe 208,209,210,211,212,213 and 214.Accompanying drawing does not have to show the tube end that has tube sheet.
Pipe is supported by segmental baffle 218,219,220.Arrange that expanded metal support plate 221,222 overcomes the vibration of pipe so that further support.Segmental baffle support element and expanded metal supporting member alternately along the length direction of pipe 205 with fixing pitch arrangement.The adjacent segmental baffles for example spacing between the segmental baffle 218 and 219 is L 3
Segmental baffle support element 218,219 is to shown similar with those elements of describing with reference to Fig. 4.On the position of half, be furnished with the expanded metal support plate that is similar to plate shown among Figure 13 235 between the adjacent segmental baffles.Plate 235 can be for example by expanded metal being cut into circle (for example passing through laser cutting) and being welded on the support ring 245 and making at low cost.
Expanded metal support plate 221,222 is used for preventing the vibration between the segmental baffle.For example not have supporting pipes length be L to the maximum of pipe 214 3, it equals the spacing between the adjacent segmental baffles.Under the situation that does not have the expanded metal supporting member, no supporting pipes length will equal the twice of spacing between the segmental baffle.Like this, the present invention allows to select the spacing between the adjacent segmental baffles greater than the spacing when pipe support only is made of segmental baffle.Therefore this segmental baffle can be arranged to realize the optimum fluid flow and the heat transmission of case side, and the totle drilling cost of pipe support can reach minimum.
Yet in some applications, what can also occur is: the tube vibration factor produces restriction to the minimum spacing between the segmental baffle.The situation that this occurs in the time of can being the heat exchange maximization that makes when wishing to make the cross-current maximization in the housing in the given heat exchanger volume.In this case, use the segmental baffle of lower partition otch, and wish to make the spacing between the dividing plate to reach minimum.Although have short spacing between the segmental baffle, this has not only caused high pressure drop, but also can produce tube vibration.Under such condition, former Technology Need increases clapboard spacing and may increase the size of heat exchanger.Yet, utilizing the present invention, additional expanded metal support plate can solve vibration problem.By using additional expanded metal supporting member, though the cost of the pipe support in the heat exchanger slightly increase because can use less housing, so the totle drilling cost of heat exchanger can be lower.
Should be understood that: the present invention can similarly be applied to level and vertical heat exchanger.
Support plate can be installed in the housing in any suitable mode.The conventional method that segmental baffle is installed is to use the spacer rod that is arranged in parallel with pipe, and it is welded on housing and the segmental baffle.These rods can be soldered on the support ring of expanded metal supporting member equally.
For many application of the present invention, the expanded metal supporting member suitably has the enough big gap of size and makes pipe to pass, thereby makes each pipe not have ground, space to be supported from the four sides substantially.Typically, in this case, the maximum of described size is measured bigger by 10% than the diameter of the pipe that can pass described gap.This size in described gap is for being preferred with reference to Fig. 1 and 12 embodiment that discussed for example, wherein the preferred supporting pipes fully of each expanded metal supporting member.
Yet, should be understood that and can also use the expanded metal that has enough big gap and make several pipes to pass.In this case, the polylith expanded metal suitably matches and arranges and pipe is supported from all directions, for example with reference to the middle expanded metal supporting member of figure 6 embodiment that discusses.This suitable layout of several porous metal plates has been discussed in WO 03/067170.The layout and the shape in the type that proposes in application (priority) day first of the present invention, described other suitable layout, expanded metal among the unpub european patent application No.03077463.2 and the gap of expanded metal.

Claims (5)

1. restrain supporting member for one kind, this supporting member comprises a plurality of apart transverse support plates that separate along the direction for the treatment of supporting pipes, and described support plate has the opening that holds pipe, and wherein, described a plurality of support plates comprise segmental baffle support element and expanded metal supporting member.
2. supporting member as claimed in claim 1, wherein, described a plurality of support plates comprise the combined support plate that is formed by segmental baffle support element and expanded metal supporting member.
3. supporting member as claimed in claim 2, wherein, described expanded metal supporting member is arranged as the window that strides across between the circle that is formed on segmental baffle support element and respective diameters.
4. supporting member as claimed in claim 1, wherein, at least one formation in the described expanded metal supporting member is arranged in the support plate of two middle parts between the segmental baffle support plate.
5. supporting member as claimed in claim 4, wherein, described middle expanded metal supporting member forms the arch support plate.
CNA2004800407544A 2003-12-22 2004-12-20 Support for a tube bundle Pending CN1906456A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03104881.2 2003-12-22
EP03104881 2003-12-22

Publications (1)

Publication Number Publication Date
CN1906456A true CN1906456A (en) 2007-01-31

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Country Status (13)

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US (2) US20050161204A1 (en)
EP (1) EP1709382B1 (en)
JP (1) JP2007515615A (en)
KR (1) KR20060130131A (en)
CN (1) CN1906456A (en)
AT (1) ATE428900T1 (en)
AU (1) AU2004304015B2 (en)
CA (1) CA2550688C (en)
DE (1) DE602004020679D1 (en)
EA (1) EA007892B1 (en)
ES (1) ES2324351T3 (en)
PT (1) PT1709382E (en)
WO (1) WO2005061982A1 (en)

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