EP1014022A1 - Condenseur à surface - Google Patents

Condenseur à surface Download PDF

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Publication number
EP1014022A1
EP1014022A1 EP98811268A EP98811268A EP1014022A1 EP 1014022 A1 EP1014022 A1 EP 1014022A1 EP 98811268 A EP98811268 A EP 98811268A EP 98811268 A EP98811268 A EP 98811268A EP 1014022 A1 EP1014022 A1 EP 1014022A1
Authority
EP
European Patent Office
Prior art keywords
tube
shell
interior
steam
surface capacitor
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Withdrawn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
EP98811268A
Other languages
German (de)
English (en)
Inventor
Vaclav Svoboda
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.)
General Electric Switzerland GmbH
Original Assignee
ABB Alstom Power Switzerland Ltd
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 ABB Alstom Power Switzerland Ltd filed Critical ABB Alstom Power Switzerland Ltd
Priority to EP98811268A priority Critical patent/EP1014022A1/fr
Priority to DE1999160029 priority patent/DE19960029A1/de
Priority to IDP991183D priority patent/ID25747A/id
Publication of EP1014022A1 publication Critical patent/EP1014022A1/fr
Withdrawn legal-status Critical Current

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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
    • F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium

Definitions

  • the invention relates to a surface capacitor according to the preamble of Claim 1.
  • Such a surface capacitor is basically from EP 0 561 012 B1 known. It has a coat that consists essentially of side walls and tube sheets, the inner walls of which delimit a vapor space. Between The tube sheets extend through tube bundles that are passed through one or more Mittelgassen are separated from each other. On the one facing away from the steam room Water chambers are attached to the side of the tube sheets.
  • Such surface condensers are used for cooling in steam power plants and condensation of the vapor formed. This is achieved in that the Steam is introduced into the steam chamber and on the cooled tubes of the tube bundle is cooled until it condenses on it and drips down as condensate. The condensate is then collected and fed to the steam cycle.
  • cooling water In order to cool the pipes, cooling water is passed through them.
  • the feed takes place, for example, via one of two water chambers opposite. From there, the water is piped into the opposite tube bundle Water chamber directed from which it then exits to the outside.
  • this water chamber provided with a wall that separates the feed chamber from the outlet chamber separates, each of which is assigned a tube bundle.
  • the opposite Water chamber is used to redirect that emerging from a tube bundle Cooling water and the subsequent feeding into the other tube bundle.
  • This water chamber is formed between two cylindrical half-shells, which are attached to the tube sheet.
  • the invention tries to avoid these disadvantages. It is based on the task to create a surface capacitor that does not require much technical Effort reduces the load on the tube sheet, especially in the middle aisle area and additionally increases the efficiency of the surface capacitor.
  • this is achieved by means of a surface capacitor with the features of claim 1 achieved, after which the inner half-shell with the tube sheet an interior is connected watertight. Furthermore, it is designed and arranged so that they follow the contour of the tube bundle in the Mittelgasse area largely follows. So it succeeds on the additional, strength-increasing Completely dispense with built-in components in the steam room because mechanical stress exerted by the half-shell on the tube sheet is done in those areas where the tubes of the tube bundle as additional Support between the two opposite tube sheets To be available. The tube plate is no longer immediate in the Mittelgasse area acted on the cooling water pressure, so that only that in Vapor prevailing vacuum must be caught.
  • the outer one Half-shell designed and arranged so that it follows the contour of the tube bundle largely follows on the sides facing away from the Mittelgasse area.
  • the force is applied to the tube sheet in the area through the tubes of the tube bundle is supported.
  • the side areas remain again largely free of loads from the cooling water pressure.
  • the half-shells are designed conically. This form ensures the arrangement of the half-shells according to the contour the tube bundle and is also particularly easy to manufacture.
  • a lockable access opening in the central aisle area of the Tube bottom provided through which access from the steam room into the interior the half-shell is given. It is also possible to do this within the framework of a Checking the steam room for leaks, including the interior of the half-shell, Check cracks etc. This arrangement of the access opening proves to be particularly suitable because the least stress occurs there.
  • the half-shells with the tube sheet to weld, which on the one hand leads to a special particularly resistant and watertight connection to the tube sheet, on the other hand allows comparatively easy disassembly for repair purposes.
  • the welding proves to be particularly suitable when both the half-shells as well as the tube sheet or tube sheet cladding made of the same material, for example made of titanium or stainless, alloy steel.
  • foamed material it is also possible to fill the interior with foamed material, whereby this can be done both partially and completely.
  • foamed Material succeeds in increasing the mechanical rigidity and in addition the Reduce the formation of condensate in the interior, reducing the risk of corrosion the half-shell or the tube sheet in the middle aisle area significantly reduced. If the interior is not completely filled with foamed material, then the unfilled area can be examined for damage. Will the This area is filled with the entire interior with foamed material such an examination is no longer available, but receives a maximum Strength.
  • the jacket forms the outer boundary of the vapor space of the Condenser and is composed of side walls and tube sheets 1.
  • the individual tube bundle 2, which consist of up to 2000 tubes 5 and one Can reach a height of 5 m are not shown in the longitudinal direction of the tube Support plates guided These tubes 5 are at both ends in the tube sheet 1 welded and / or rolled.
  • a V-shaped space remains between the tube bundles 2, which is referred to as Mittelgasse 3.
  • Such a capacitor has the advantage that the loose arrangement the tube bundle 2 all tubes 5 of a tube bundle 2 without noticeable pressure loss can be supplied with steam.
  • the training of Mittelgasse 3 a special load on the tube sheet 1 in the Mittelgasse area 3a. Since the middle aisle area 3a is not supported by pipes 5, this area of the tube sheet 1 by the water pressure Cooling water particularly at risk.
  • At least one half-shell 6 is now arranged, which is connected to the tube sheet 1 forming an interior 7, watertight.
  • the half-shell 6 in the central aisle area 3a of the tube sheet 1 is such arranged and shaped that the half-shell 6 the contour of the tube bundle 2 follows.
  • the pressure of the cooling water is thus taken up and the middle aisle area 3a covered by the half-shell 6 in front of a direct one Pressurization is protected.
  • the forces on the half-shell 6, which are formed as a half-cone frustum is derived on the edge area of the middle aisle area 3a, where a Support of the tubes 5 from the edge region of the tube bundle 2 is effective.
  • an outer half-shell 9 is formed and arranged, which the contour of the tube bundle 2 on the Mittelgasse area 3a opposite side follows.
  • an opening 8 shown Through which the interior 7 can be drained.
  • the drainage can be done in the steam room where the condensate of the interior 7 is fed to the condensate of the steam cycle. This is always permanent and sufficient drainage guaranteed.
  • the water chamber 4 is thus essentially by the two half switches 6, 9 formed.
  • the half-shell 9 is connected to the tube sheet 1 by means of a flange 10 attached.
  • the two half-shells 6, 9 are shaped so that the one formed by them Flow channel along the flow path is largely uniform Width. This training ensures that the cooling water is optimal from one tube bundle 2 via the flow channel to the other tube bundle 2 is redirected.
  • the local flow channel width corresponds to the local one Distance between the half-shells 8, 9 and thus the local width of the tube bundle 2.
  • the tube sheet 1 and the half-shells 6, 9 are made of titanium, for example, wherein at least the half-shell 6 is welded to the tube sheet 1. Thereby is a waterproof, durable and very resistant connection between given the half-shell 6 and the tube sheet 1, which if necessary comparatively easy to solve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
EP98811268A 1998-12-24 1998-12-24 Condenseur à surface Withdrawn EP1014022A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98811268A EP1014022A1 (fr) 1998-12-24 1998-12-24 Condenseur à surface
DE1999160029 DE19960029A1 (de) 1998-12-24 1999-12-13 Oberflächenkondensator
IDP991183D ID25747A (id) 1998-12-24 1999-12-24 Kondensor permukaan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98811268A EP1014022A1 (fr) 1998-12-24 1998-12-24 Condenseur à surface

Publications (1)

Publication Number Publication Date
EP1014022A1 true EP1014022A1 (fr) 2000-06-28

Family

ID=8236509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98811268A Withdrawn EP1014022A1 (fr) 1998-12-24 1998-12-24 Condenseur à surface

Country Status (3)

Country Link
EP (1) EP1014022A1 (fr)
DE (1) DE19960029A1 (fr)
ID (1) ID25747A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101468721B (zh) * 2007-12-28 2010-10-13 中国航天科技集团公司第五研究院第五一〇研究所 空间冷屏蔽系统过热蒸汽二次扩压分流机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE254124C (fr) *
GB169977A (en) * 1920-10-05 1922-06-01 Andre Ginabat Improvements relating to surface condensers
DE451659C (de) * 1926-06-12 1927-10-31 Bbc Brown Boveri & Cie Oberflaechen-Kondensator mit mehreren Frischwasserstroemen fuer das Kuehlwasser
DE4141132C1 (fr) * 1991-12-13 1993-02-11 Preussenelektra Ag, 3000 Hannover, De
EP0561012A1 (fr) 1992-03-16 1993-09-22 Asea Brown Boveri Ag Procédé et dispositif pour le traitement d'eau dans un condensateur à surface

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1966802A (en) * 1931-10-23 1934-07-17 Charles O Purdin Air and water cooling apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE254124C (fr) *
GB169977A (en) * 1920-10-05 1922-06-01 Andre Ginabat Improvements relating to surface condensers
DE451659C (de) * 1926-06-12 1927-10-31 Bbc Brown Boveri & Cie Oberflaechen-Kondensator mit mehreren Frischwasserstroemen fuer das Kuehlwasser
DE4141132C1 (fr) * 1991-12-13 1993-02-11 Preussenelektra Ag, 3000 Hannover, De
EP0561012A1 (fr) 1992-03-16 1993-09-22 Asea Brown Boveri Ag Procédé et dispositif pour le traitement d'eau dans un condensateur à surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101468721B (zh) * 2007-12-28 2010-10-13 中国航天科技集团公司第五研究院第五一〇研究所 空间冷屏蔽系统过热蒸汽二次扩压分流机构

Also Published As

Publication number Publication date
ID25747A (id) 2000-11-02
DE19960029A1 (de) 2000-06-29

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