EP2032927A1 - Procédé permettant d'ériger une installation de condensation - Google Patents

Procédé permettant d'ériger une installation de condensation

Info

Publication number
EP2032927A1
EP2032927A1 EP07722060A EP07722060A EP2032927A1 EP 2032927 A1 EP2032927 A1 EP 2032927A1 EP 07722060 A EP07722060 A EP 07722060A EP 07722060 A EP07722060 A EP 07722060A EP 2032927 A1 EP2032927 A1 EP 2032927A1
Authority
EP
European Patent Office
Prior art keywords
floor panels
angle
assembly
tube
seam
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.)
Withdrawn
Application number
EP07722060A
Other languages
German (de)
English (en)
Inventor
Heinz-Dieter Schabosky
Markus Schmidt
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.)
GEA Energietchnik GmbH
Original Assignee
GEA Energietchnik 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 GEA Energietchnik GmbH filed Critical GEA Energietchnik GmbH
Publication of EP2032927A1 publication Critical patent/EP2032927A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49396—Condenser, evaporator or vaporizer making

Definitions

  • the invention relates to a method for constructing a condensation plant according to the features in the preamble of patent claim 1.
  • the individual tube bundles of an A-type air condenser are preassembled on a roof-shaped preassembly rack.
  • the pre-assembly has exactly the inclination, which should have the individual tube bundle in the installed position.
  • the tube bundles to be connected to each other are lifted by means of a crane on the pre-assembly, so that they face each other in the ridge area. So far, it was so that tapped holes were provided in the end-side bottom plates of the tube bundles, so that pre-assembly angle could be screwed between the two tube bundles.
  • the tube bundles connected in this way are then transported into the installation position.
  • angle iron which extends in the longitudinal direction of the ridge-side steam distribution line to be welded later.
  • the angle iron points with its corner area upwards. His thighs are welded via a fillet weld on both long sides with the bottom plates of the tube bundles.
  • Angle irons with their longitudinal edges do not rest exactly on the bottom plates, which in turn makes welding difficult or even impossible.
  • the previous procedure therefore required time-consuming reworking under certain circumstances. It has initially gone over to use slightly larger sized angle iron, so as not to collide with the pre-assembly angles and to prevent any delays in assembly. The cost of materials is higher due to the larger angle iron.
  • an angle iron must also be provided in this area, which is not intended to prevent the escape of steam, but rather serves to direct the flow of cooling air through the tube bundles and to allow no leaks in the ridge area.
  • Another disadvantage is that the previously used pre-assembly and the angle iron must be painted after installation for corrosion protection with paint, the interior is extremely poorly accessible below the angle. Although this area is not subject to corrosion by precipitation, since it is constantly subjected to cooling air and therefore can not trap rainwater, but the angle iron can enforce the humidity, especially if such condensation plants have been built for power plants in tropical regions.
  • the object of the invention is to improve the pre-assembly of the tube bundles to be connected to a tube bundle delta with regard to the material as well as the time expenditure.
  • the tube bundles are placed with their, the heat exchanger tubes holding floor plates in cushions on a first strut of Vormontagegestell so that the facing longitudinal sides of the floor panels are welded together by means of a Trentaht before the thus preassembled, roof-shaped Rohrbündeldelta lifted from the pre-assembly and in the installed position is spent. The final welding takes place in the installation position.
  • the root seam will be welded only in those areas where there are no supports. On the one hand, this has practical reasons, since the supports should not be damaged by the welding process. On the other hand, it is not necessary to lay the root seam over the entire width of a tube bundle, since even shorter weld seam sections already have a sufficient load capacity. Of course, it is expedient to pull the root seam already during the pre-assembly on the pre-assembly as long as possible, so as much preliminary work as possible can be done for at least one final covering seam.
  • the upper longitudinal edges of the mutually facing longitudinal sides of the floor panels at an angle be chamfered twice, so that an upper chamfer with a larger chamfer angle and a lower chamfer with a smaller chamfer angle, wherein the smaller chamfer angle is selected such that the lower of the chamfers of the floor panels run parallel to each other.
  • Such a preparation of welds aims at, for example, being able to weld together over the total sheet thickness at an angle of 30 ° to one another.
  • the opening angle of the V-seam between the two floor panels may therefore be preferably 60 °, i. It is an upper chamfer angle of 60 ° at each longitudinal edge appropriate, since the floor panels themselves are each inclined by 30 ° relative to the horizontal.
  • the inventive method unfolds its advantages both in tube bundles, which are connected dephlegmatorisch as well as tube bundles, which are connected in a condensed manner. In any case, eliminates the relatively heavy angle iron.
  • the invention also makes subsequent application of anticorrosive paint to the floor panels welded together much easier, since no undercut cavities are formed.
  • the inventive type of pre-assembly of the tube bundle is also significantly time-saving compared to the previous approach. Calculations have shown that through the modified pre-assembly so far not only 10 tube bundle deltas per day could be set up, but 12 to 14 tube bundle deltas. The time to set up the Rohrbündeldeltas is of concern, because a crane is required to set up the Rohrbündeldeltas. The cost of cranes are regularly very high.
  • Fig. 1 is a roof-shaped pre-assembly with tube bundles in the
  • FIG. 2 shows a heat exchanger delta in the installation position
  • Fig. 4 shows an enlarged view of the longitudinal sides of the floor panels of
  • Fig. 5 is a sectional view through the ridge region of a
  • FIG. 1 shows a sectional view of a roof-shaped preassembly frame 1, on which two tube bundles 2, 3 rest, in order to be connected to one another in their ridge area.
  • Figure 5 illustrates how the connection of the tube bundle 2, 3 so far took place.
  • the two floor panels 5, 6 are screwed together.
  • the preassembled heat exchanger delta was moved to the installed position. There, the illustrated angle iron 9 was slipped over the pre-assembly 8 and welded via V-seams with the bottom plates 5, 6.
  • the pre-assembly angle 8 and the angle iron 9 are completely eliminated. Rather, the floor panels 5, 6 of the tube bundle 2, 3 placed on spaced supports 10 (see Fig. 3), which are fixed to a first strut 11 of the pre-assembly 1.
  • the support surfaces 10 have on their upper side bearing surfaces for the floor panels 5, 6.
  • the bearing surfaces form a kind of V-shaped groove, so that the floor panels 5, 6 touch with their facing longitudinal sides 12, 13 in the deepest of the groove and there over a Rooted seam can be welded together.
  • the root seam is not shown in detail and is not welded in the area of the supports 10, but rather between two supports so as not to damage them.
  • FIG 4 shows an enlarged view of the ridge area of a heat exchanger delta 14 constructed according to the invention, already with welded steam distribution line 4 and in enlargement the area of the mutually facing longitudinal sides 12, 13 of the floor panels 5, 6.
  • the floor panels 5, 6 in each case by 30 ° inclined to the horizontal. This results in that the end faces are at an angle of 60 ° to each other, as shown in Figure 4 at the bottom.
  • the floor panels 5, 6 were chamfered twice.
  • the upper chamfers are dimensioned so that in the installation position an angle of 30 ° with respect to the vertical or an opening angle of 60 ° between the two floor panels 5, 6 is formed.
  • the chamfer angle of the inclination of the floor panels 5, 6 relative to the horizontal ie in this embodiment corresponds to 30 °.
  • the floor panels 5, 6 touch each other flat in a 2 mm wide area. This region of the surface contact is melted over the first welded root seam, so that a solid bond between the two bottom plates 5,6 and thus between the tube bundles 2, 3 is formed. Above the root seam, the already mentioned cover seams are welded in the installation position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)
  • Commercial Cooking Devices (AREA)
  • Greenhouses (AREA)

Abstract

Procédé permettant d'ériger une installation de condensation, selon lequel deux faisceaux de tubes (2, 3) sont placés sur un bâti de montage préalable (1) en forme de toit et reliés l'un à l'autre dans la zone de faîte. Les faisceaux de tubes (2, 3), avec leurs tôles de fond (5, 6) supportant les tubes d'échangeur thermique, sont placés dans des appuis (10) sur une jambe de force de faîte (11) du bâti de montage préalable (1), de sorte que les côtés longitudinaux (12, 13) des tôles de fond (5, 6) tournés les uns vers les autres sont reliés les uns aux autres par soudage au moyen d'une soudure à coer, avant que le delta de faisceau de tubes (14) en forme de toit monté ainsi au préalable ne soit soulevé du bâti de montage préalable (1) et mis dans la position de montage.
EP07722060A 2006-06-27 2007-03-20 Procédé permettant d'ériger une installation de condensation Withdrawn EP2032927A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006029773A DE102006029773B3 (de) 2006-06-27 2006-06-27 Verfahren zur Errichtung einer Kondensationsanlage
PCT/DE2007/000500 WO2008000202A1 (fr) 2006-06-27 2007-03-20 Procédé permettant d'ériger une installation de condensation

Publications (1)

Publication Number Publication Date
EP2032927A1 true EP2032927A1 (fr) 2009-03-11

Family

ID=38170187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722060A Withdrawn EP2032927A1 (fr) 2006-06-27 2007-03-20 Procédé permettant d'ériger une installation de condensation

Country Status (10)

Country Link
US (1) US8191259B2 (fr)
EP (1) EP2032927A1 (fr)
CN (1) CN101356413B (fr)
AU (1) AU2007264231B2 (fr)
DE (1) DE102006029773B3 (fr)
MA (1) MA30459B1 (fr)
RU (1) RU2008114503A (fr)
TN (1) TNSN08163A1 (fr)
WO (1) WO2008000202A1 (fr)
ZA (1) ZA200802302B (fr)

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DE102007044658B3 (de) * 2007-09-18 2008-12-04 Gea Energietechnik Gmbh Luftbeaufschlagter Trockenkühler
WO2013158665A1 (fr) 2012-04-16 2013-10-24 Evapco, Inc. Appareil et méthode de raccord de serpentins d'échangeur de chaleur de condenseur refroidi à l'air à un distributeur de vapeur
US9551532B2 (en) 2012-05-23 2017-01-24 Spx Dry Cooling Usa Llc Modular air cooled condenser apparatus and method
DE102014112707A1 (de) * 2014-09-03 2016-03-03 Gea Energietechnik Gmbh Anlage zur Kondensation von Dampf
ES2850201T3 (es) * 2017-01-30 2021-08-26 Spg Dry Cooling Belgium Condensador enfriado por aire con difusor de flujo de aire
US11204201B2 (en) 2017-09-27 2021-12-21 Holtec International Air-cooled condenser system
US11796255B2 (en) 2017-02-24 2023-10-24 Holtec International Air-cooled condenser with deflection limiter beams
US11604030B2 (en) 2017-09-27 2023-03-14 Holtec International Air-cooled condenser system

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Also Published As

Publication number Publication date
RU2008114503A (ru) 2009-10-20
CN101356413A (zh) 2009-01-28
ZA200802302B (en) 2009-10-28
CN101356413B (zh) 2010-06-16
TNSN08163A1 (en) 2009-10-30
MA30459B1 (fr) 2009-06-01
DE102006029773B3 (de) 2007-07-12
US20090178279A1 (en) 2009-07-16
AU2007264231B2 (en) 2009-09-24
AU2007264231A1 (en) 2008-01-03
US8191259B2 (en) 2012-06-05
WO2008000202A1 (fr) 2008-01-03

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