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EP0553435A2 - Tour de refroidissement à tirage naturel - Google Patents

Tour de refroidissement à tirage naturel Download PDF

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Publication number
EP0553435A2
EP0553435A2 EP92120517A EP92120517A EP0553435A2 EP 0553435 A2 EP0553435 A2 EP 0553435A2 EP 92120517 A EP92120517 A EP 92120517A EP 92120517 A EP92120517 A EP 92120517A EP 0553435 A2 EP0553435 A2 EP 0553435A2
Authority
EP
European Patent Office
Prior art keywords
heat exchange
exchange elements
cooling tower
steam
natural draft
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.)
Granted
Application number
EP92120517A
Other languages
German (de)
English (en)
Other versions
EP0553435B1 (fr
EP0553435A3 (en
Inventor
Burkhard Trage
Richard Leitz
Georg Schrey
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.)
Balcke Duerr AG
Original Assignee
Balcke Duerr AG
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 Balcke Duerr AG filed Critical Balcke Duerr AG
Publication of EP0553435A2 publication Critical patent/EP0553435A2/fr
Publication of EP0553435A3 publication Critical patent/EP0553435A3/de
Application granted granted Critical
Publication of EP0553435B1 publication Critical patent/EP0553435B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28B1/06—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
    • 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
    • F28B2001/065—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 with secondary condenser, e.g. reflux condenser or dephlegmator
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/90—Cooling towers

Definitions

  • the invention relates to a natural draft cooling tower with a plurality of preferably roof-shaped heat exchange elements for the condensation of turbine exhaust steam from a power plant, the heat exchange elements supplied with the steam to be condensed being supplied partly via a common, centrally arranged steam supply line and radially branching distribution lines and partly through the condenser are switched dephlegmatorically, the dephlegmatorically switched heat exchange elements are arranged on the steam side after the condenser switched heat exchange elements, and the heat exchange elements are distributed over a plurality of identical sectors, each of which has complete lines for steam distribution as well as inert gas and condensate discharge.
  • Such natural draft cooling towers for the condensation of turbine exhaust from a power plant are known from DE-OS 34 41 514. Since an accumulation of inert gases in the heat exchangers must be prevented, the residual condensation takes place in the dephlegmatorically switched, forced-ventilation heat exchange elements from which the inert gases are drawn off. So that these dephlegmatorically switched heat exchange elements are adequately supplied with cooling air in all load cases and even in unfavorable weather conditions, these dephlegmatorically switched heat exchange elements are provided with their own fans.
  • a symmetrical natural draft cooling tower in which the roof-shaped heat exchange elements are arranged radially to the longitudinal axis of the cooling tower.
  • the steam to be condensed is supplied via a centrally arranged steam supply line, from which radial steam distribution lines branch off to the upper edge of the respective heat exchange elements.
  • These are partly condenser and partly dephlegmatory, the dephlegmatorically connected heat exchange elements being arranged on the inside around the steam supply line.
  • One dephlegmatorically connected heat exchange element is assigned to two condenser heat exchange elements arranged in radial extension, so that overall there is an arrangement of the heat exchange elements in the form of individual segments. All heat exchange elements and the associated lines are arranged on a single, common supporting structure, which rests on shoulders of the outer shell of the natural draft cooling tower.
  • DE-OS 24 05 999 also discloses a natural draft cooling tower with a radial arrangement of the individual heat exchange elements.
  • the condenser-connected heat exchange elements are on the outside and the dephlegmator-connected heat exchange elements are on the inside near the central steam supply line arranged.
  • the arrangement of the condenser heat exchange elements is two-stage, with half of the turbine exhaust gas occurring in the outer first stage being fed together with half the steam from the adjacent first stage to a common second condenser stage which is arranged further inwards.
  • the heat exchange elements of the second condenser stage thus take over the residual steam from two adjacent first condenser stages arranged in different radial positions.
  • the disadvantage here is that the circuitry linking the condenser heat exchange elements with the respectively adjacent, radially offset heat exchange elements means that reduced operation of the system using only a part of the total heat exchange elements available is not possible.
  • the condenser-operated heat exchange elements are arranged in several rings around the central longitudinal axis of the cooling tower.
  • the steam to be condensed is supplied via steam supply lines arranged in a circle around the central longitudinal axis of the cooling tower. All of the heat exchange elements of a ring are accommodated on a common supporting structure in order to enable an arrangement that rises outwards in a step-like manner by a suitable selection of their height.
  • the invention has for its object to provide a natural draft cooling tower that allows a favorable adaptation of the respective condensing capacity to different operating conditions and / or changing weather conditions and at the same time one enables the best possible use of the cooling tower base.
  • the solution to this problem by the invention is characterized in that the sectors each have their own support structure for the heat exchange elements, which is independent of the other sectors, and that the condenser-connected heat exchange elements with their longitudinal axis each have a secant to the central steam supply line on the support structure are arranged and that the dephlegmatorically switched heat exchange elements are provided with their own fans.
  • the length dimensions of the preferably roof-shaped heat exchange elements can be chosen differently according to their arrangement on the support structure which is identical for all sectors. In this way, almost complete coverage of the sectors with heat exchange elements is achieved, so that the free spaces to be covered are reduced to a minimum.
  • the structurally identical sectors each comprise the proportion of condenser and dephlegmatorically connected heat exchange elements corresponding to the respective number of sectors, including their complete lines for steam distribution and for the discharge of inert gas and condensate, wherein the heat exchange elements and the complete lines are arranged on an independent supporting structure and the independent sectors are only connected to the extent that they are each connected to the centrally arranged steam supply line.
  • the supporting structure of all sectors can be designed simultaneously as support for the cooling tower shell designed as a steel structure. In this development according to the invention, there is no need for a separate foundation for the cooling tower shell.
  • the cooling tower shell is designed as a closed polygon. This shape, which is approximated to a circular base area, enables the heat exchange elements to be supplied with cooling air evenly and prevents the emergence of preferred or particularly unfavorable wind directions.
  • the heat exchange elements are arranged in several "rings" with respect to the central axis of the cooling tower shell.
  • the condenser-connected heat exchange elements can be arranged in parallel next to each other and with their longitudinal axis corresponding to the steam distribution chamber forming the ridge of the roof-shaped elements, each in the manner of a secant to the central steam supply line and the dephlegmatorically switched heat exchange element with its suction chamber forming the ridge and radially aligned and directly adjacent to the steam supply line be arranged on the supporting structure.
  • the invention proposes to arrange the heat exchange elements of each sector in a manner known per se on a plane rising from the center to the outside.
  • the first exemplary embodiment of a natural draft cooling tower shown in FIGS. 1 and 2 comprises a plurality of roof-shaped heat exchange elements 1, 2, which are connected to a steam supply line 3 for the condensation of turbine exhaust steam from a power plant, not shown.
  • the end of this steam supply line 3 runs vertically in the center of the cooling tower and is connected to radially extending distribution lines 4, each of which is assigned to a sector S of the cooling tower, as can be seen particularly clearly from FIG. 2.
  • the cooling tower is formed by six such identical sectors S.
  • the steam to be condensed arrives in two condenser-connected heat exchange elements 1, which are connected in parallel to one another, via the central steam supply line 3 and a radially extending distribution line 4. Most of the steam condenses in these condenser-connected heat exchange elements 1.
  • the residual steam loaded with inert gases passes through manifolds 5 into the distribution chambers 6 located below of the dephlegmatorically connected heat exchange element 2 downstream of the condenser-connected heat exchange elements 1, as best shown in FIG. 1.
  • the residual condensation of the steam takes place in this dephlegmatorically connected heat exchange element 2.
  • each dephlegmatorically switched heat exchange element 2 is provided with at least one separate fan 7.
  • the condensate resulting from the condensation in the heat exchange elements 1 and 2 is drawn off below the dephlegmatorically switched heat exchange element 2 through a condensate discharge line 8.
  • the inert gases resulting from the condensation are discharged through a gas line 9.
  • the heat exchange elements 1 and 2 with the associated distribution line 4, the collecting lines 5 and the condensate discharge line 8 and the gas line 9 are arranged on a supporting structure 10 belonging to each sector S, which is indicated in FIG. 1.
  • these supporting structures 10 serve not only to support the heat exchange elements 1 and 2 and the associated lines, but also as a foundation for the cooling tower shell, which in the exemplary embodiment is formed as a steel structure from shell segments 11 in the manner of a closed polygon.
  • the heat exchange elements 1 and 2 are adapted to the circumstances in terms of their length in order to make optimum use of the area and differ from ring to ring.
  • the design of the individual finned tubes, their roof-shaped arrangement, the span of the heat exchange elements 1 and the design of the chambers running at the ridge and at the lower ends are identical.
  • the dephlegmatorically switched heat exchange elements 2 are composed of identical elements, which in the exemplary embodiment are almost square, and which are provided with one or more fans 7. They can be arranged on the inner, a middle or the outer ring of each sector S according to the necessary area share. 1 and 2, an arrangement with an area ratio of condenser-switched heat exchange elements 1 to dephlegmatorically switched heat exchange elements 2 of approximately 5: 1 is shown, the dephlegmatorically switched heat exchange elements 2 being arranged on the innermost ring.
  • the ridges of the dephlegmatorically connected heat exchange elements 2 forming the suction chambers for the inert gases are arranged in the exemplary embodiment parallel to the ridges of the condenser switched heat exchange elements 1, which act as steam distribution chambers.
  • the heat exchange elements 1 and 2 are arranged in a horizontal plane
  • the second embodiment according to FIG. 3 shows an arrangement of the heat exchange elements 1 and 2, each belonging to a sector S, on a plane rising from the center to the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP92120517A 1992-01-25 1992-12-02 Tour de refroidissement à tirage naturel Expired - Lifetime EP0553435B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4202069 1992-01-25
DE4202069A DE4202069A1 (de) 1992-01-25 1992-01-25 Naturzug-kuehlturm

Publications (3)

Publication Number Publication Date
EP0553435A2 true EP0553435A2 (fr) 1993-08-04
EP0553435A3 EP0553435A3 (en) 1993-12-15
EP0553435B1 EP0553435B1 (fr) 1995-01-25

Family

ID=6450276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92120517A Expired - Lifetime EP0553435B1 (fr) 1992-01-25 1992-12-02 Tour de refroidissement à tirage naturel

Country Status (8)

Country Link
US (1) US5301746A (fr)
EP (1) EP0553435B1 (fr)
CN (1) CN1074752A (fr)
AU (1) AU646985B2 (fr)
DE (2) DE4202069A1 (fr)
ES (1) ES2070574T3 (fr)
MX (1) MX9300163A (fr)
ZA (1) ZA93535B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002701A1 (fr) 1996-07-17 1998-01-22 Energiagazdálkodási Részvénytársaság Appareil de condenseurs a air naturel et procede de fonctionnement de celui-ci
EP2369282A3 (fr) * 2010-03-22 2015-07-22 SPX Cooling Technologies Inc. Appareil et procédé pour tour de refroidissement de condensateur refroidi à air à tirage naturel
CN105403065A (zh) * 2015-12-11 2016-03-16 双良节能系统股份有限公司 采用自然通风的直接空冷系统
EP3029405A1 (fr) * 2012-05-23 2016-06-08 SPX Cooling Technologies Inc. Appareil et procede de condenseur refroidi par air modulaire

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0842982A (ja) * 1994-05-17 1996-02-16 Hde Metallwerk Gmbh 高効率型毛管式熱交換器
US20040211184A1 (en) * 2003-04-04 2004-10-28 Desikan Bharathan Convection towers for air cooled heat exchangers
DE202005005302U1 (de) * 2005-04-04 2005-06-02 Spx-Cooling Technologies Gmbh Luftkondensator
CN100340744C (zh) * 2005-08-11 2007-10-03 西安交通大学 大型火电直接空冷机组乏汽热能利用的装置
CN100504271C (zh) * 2007-03-06 2009-06-24 黄锦明 一种多边形逆流式冷却塔
CN102536705B (zh) * 2010-12-31 2016-01-20 施国樑 带虹吸涡轮发动机的塔式太阳热发电装置
CN102297609B (zh) * 2011-08-01 2012-11-21 山西省电力勘测设计院 共用冷却塔的间接冷却系统
ES2478640B1 (es) * 2012-03-01 2015-07-21 Miguel MARTÍNEZ MONEDERO Pieza cerámica evapo-transpirativa para una construcción sostenible
WO2016169076A1 (fr) * 2015-04-23 2016-10-27 赵元宾 Faisceau de tubes de refroidissement du type en colonne avec espace en forme conique
CN105004198A (zh) * 2015-07-16 2015-10-28 西安石油大学 一种水型闭式循环水空气冷却系统及方法
CN105716441A (zh) * 2015-12-10 2016-06-29 中国电力工程顾问集团西北电力设计院有限公司 一种散热器垂直布置有效抽力可调的自然通风空冷塔
CN109196298B (zh) 2016-05-25 2020-11-27 Spg空气冷却比利时公司 空气冷凝设备及方法
CN106052413B (zh) * 2016-07-13 2018-11-06 北京龙源冷却技术有限公司 塔式直接空冷凝汽器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1451131B1 (de) * 1964-02-28 1970-07-30 Gea Luftkuehler Happel Gmbh Luftgekuehlter Oberflaechenkondensator
DE1960619B2 (de) * 1969-12-03 1972-01-05 GEA Luftkuhlergesellschaft Happel GmbH & Co KG, 4630 Bochum Kuehlturm mit roehren waermeaustauscherelementen fuer dampf foermige oder fluessige medien
DE2405999A1 (de) * 1974-02-08 1975-08-21 Gea Happel Gmbh & Co Kg Kuehlturm
FR2444913A1 (fr) * 1978-12-20 1980-07-18 Maschf Augsburg Nuernberg Ag Echangeur de chaleur a tubes d'air de forme cylindrique
DE3441514A1 (de) * 1984-11-14 1986-05-15 Balcke-Dürr AG, 4030 Ratingen Naturzug-kuehlturm

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59577C (de) * — H. CH. L. NAGEL in Kopenhagen Hosenträger mit Rückenwärmer
FR594618A (fr) * 1925-03-05 1925-09-16 Perfectionnements aux réfrigérants à cheminée
GB1183193A (en) * 1966-08-09 1970-03-04 Gkn Birwelco Ltd Improvements in or relating to Cooling Towers
DE1601127B2 (de) * 1967-02-08 1974-08-08 Gkn Birwelco Ltd., Aston, Birmingham, Warwickshire (Grossbritannien) Kühlanlage mit einem mit natürlichem Zug arbeitenden Kühlturm
US3498590A (en) * 1968-06-13 1970-03-03 Fluor Prod Co Inc Spiral draft water cooling tower
GB1349683A (en) * 1971-04-13 1974-04-10 Ipari Epuelettervezoe Vallalat Cooling tower
DE2242058B2 (de) * 1972-08-26 1980-06-19 Balcke-Duerr Ag, 4030 Ratingen Kühlturm mit einem rohrförmigen, senkrecht stehenden Mantel
DE2424059C3 (de) * 1974-05-17 1979-04-26 Gea-Luftkuehlergesellschaft Happel Gmbh & Co Kg, 4630 Bochum Kühlturm
US3942588A (en) * 1974-11-04 1976-03-09 The Lummus Company Cooling tower
US4129180A (en) * 1976-12-06 1978-12-12 Hudson Products Corporation Vapor condensing apparatus
US4243095A (en) * 1979-02-15 1981-01-06 The Lummus Company Cooling tower
GB2097524B (en) * 1981-04-23 1984-08-15 Lummus Co Dry cooling tower

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1451131B1 (de) * 1964-02-28 1970-07-30 Gea Luftkuehler Happel Gmbh Luftgekuehlter Oberflaechenkondensator
DE1960619B2 (de) * 1969-12-03 1972-01-05 GEA Luftkuhlergesellschaft Happel GmbH & Co KG, 4630 Bochum Kuehlturm mit roehren waermeaustauscherelementen fuer dampf foermige oder fluessige medien
DE2405999A1 (de) * 1974-02-08 1975-08-21 Gea Happel Gmbh & Co Kg Kuehlturm
FR2444913A1 (fr) * 1978-12-20 1980-07-18 Maschf Augsburg Nuernberg Ag Echangeur de chaleur a tubes d'air de forme cylindrique
DE3441514A1 (de) * 1984-11-14 1986-05-15 Balcke-Dürr AG, 4030 Ratingen Naturzug-kuehlturm

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998002701A1 (fr) 1996-07-17 1998-01-22 Energiagazdálkodási Részvénytársaság Appareil de condenseurs a air naturel et procede de fonctionnement de celui-ci
EP2369282A3 (fr) * 2010-03-22 2015-07-22 SPX Cooling Technologies Inc. Appareil et procédé pour tour de refroidissement de condensateur refroidi à air à tirage naturel
EP3029405A1 (fr) * 2012-05-23 2016-06-08 SPX Cooling Technologies Inc. Appareil et procede de condenseur refroidi par air modulaire
EP2667133A3 (fr) * 2012-05-23 2018-04-04 SPX Dry Cooling USA LLC Appareil et procédé de condenseur refroidi par air modulaire
EP3534099A1 (fr) * 2012-05-23 2019-09-04 SPG Dry Cooling USA LLC Appareil et procédé de condenseur refroidi par air modulaire
CN105403065A (zh) * 2015-12-11 2016-03-16 双良节能系统股份有限公司 采用自然通风的直接空冷系统

Also Published As

Publication number Publication date
MX9300163A (es) 1993-07-01
DE59201298D1 (de) 1995-03-09
EP0553435B1 (fr) 1995-01-25
DE4202069A1 (de) 1993-07-29
AU3193093A (en) 1993-08-19
AU646985B2 (en) 1994-03-10
ES2070574T3 (es) 1995-06-01
EP0553435A3 (en) 1993-12-15
ZA93535B (en) 1993-08-25
US5301746A (en) 1994-04-12
CN1074752A (zh) 1993-07-28

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