EP0001189A2 - Vorrichtung zur Zugkorrektion in Kühltürmen, insbesondere in solchen mit natürlichem Zug - Google Patents

Vorrichtung zur Zugkorrektion in Kühltürmen, insbesondere in solchen mit natürlichem Zug Download PDF

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Publication number
EP0001189A2
EP0001189A2 EP78400054A EP78400054A EP0001189A2 EP 0001189 A2 EP0001189 A2 EP 0001189A2 EP 78400054 A EP78400054 A EP 78400054A EP 78400054 A EP78400054 A EP 78400054A EP 0001189 A2 EP0001189 A2 EP 0001189A2
Authority
EP
European Patent Office
Prior art keywords
tower
exchangers
base
screens
posts
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
EP78400054A
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English (en)
French (fr)
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EP0001189A3 (en
EP0001189B1 (de
Inventor
Jean Maurice
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.)
Renault Techniques Nouvelles Appliquees
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Renault Techniques Nouvelles Appliquees
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9193694&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0001189(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Renault Techniques Nouvelles Appliquees filed Critical Renault Techniques Nouvelles Appliquees
Publication of EP0001189A2 publication Critical patent/EP0001189A2/de
Publication of EP0001189A3 publication Critical patent/EP0001189A3/fr
Application granted granted Critical
Publication of EP0001189B1 publication Critical patent/EP0001189B1/de
Expired 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

Definitions

  • the present invention due to the collaboration of Mr. Jean MAURICE, relates to a method and to a device for the correction of the draft in cooling towers in particular with natural draft.
  • Such air coolers are mainly used for the dissipation of excess calories not transformed into electricity, in power plants of all kinds, especially thermal and nuclear.
  • a cooling tower for example of the so-called dry type, is essentially constituted by a shell of revolution forming a chimney, of great height, supported at its base by a crown of posts (obliques) surmounted by a circular lintel.
  • the heat exchangers in which circulate in closed circuits the fluid or fluids to be cooled, can be produced in batteries or by simple pipes or fitted with fins.
  • the exchanger batteries are arranged on a cross section of the hull in the vicinity of the base, that is to say in a general horizontal plane at a certain height relative to the ground.
  • the exchangers rest on a metallic lattice structure, supported by vertical posts installed on the base surface of the tower.
  • the cold air or outside wind arrives through the base of the tower, between the various support posts, and passes vertically through the exchangers to exit towards the top of the tower by dissipating the calories into the atmosphere.
  • the tower is calculated and structured to ensure the dissipation of the noninal thermal flux, as is notably the case for the process and the tower developed by the present applicant in another French demsrde.
  • the method according to the invention consists in breaking the dynamic pressure of the wind at the base of the tower to recreate a calm environment and in directing it towards the exchangers by a series of suitable means in order to ensure the dissipation of the nominal thermal flux.
  • the invention presents several devices essentially characterized by the installation of a series of various deflector screens, fixed or mobile, of guide vanes and of orientation correction flaps, used separately or in combination.
  • FIG. 1a one recognizes the base of a cooling tower roughly comprising a shell 1 supported at its base by a crown of oblique posts 2 surmounted by a circular lintel 3.
  • the exchangers 4 installed on a general horizontal plane some distance from the ground 5, are supported by a series of vertical posts 6 visible in FIG. 6b.
  • the wind arriving horizontally along the arrow F 1 is broken and deflected through the exchangers (F 2 ), by means of a plurality of radial screens 7 arranged vertically at the base of the tower, concurrent on the axis of symmetry 8 and inscribed in a surface corresponding substantially to the projection 9 on the ground of the heat exchange surface.
  • Each branch of the star thus formed can take various forms, in particular rectangular (fig. 1a), triangular (dotted lines 17, fig. 1a), preferably trapezoidal, truncated either vertically (fig. 2), either horizontally (fig. 3), or again according to a combination of the preceding forms, with a variable height which can reach the lower face 10 of the heat exchanger bank.
  • the star represented is with eight branches, but it goes without saying that the number of branches can be any, preferably from four to twelve, symmetrical or not.
  • deflector screens can, in any case, be solid or perforated according to variable wind permeability. This is how they can be made of concrete, sheet metal or using tensile structures. A deployable net with large meshes notably facilitates access to the exchangers, for maintenance for example.
  • the corrective device according to the invention makes it possible to reduce the increase in pressure drop due to wind, compared to windless operation, in the approximate proportion of 4.7 to 2.
  • the solution of figure 4 represents a contiru circular screen 11 installed at the outer periphery of the tower, of sufficient height to break the wind, in relation to the distance D from the base of the tower.
  • This screen 11 can be produced economically by one or more rows of trees or by a metal or concrete wall, by way of non-limiting examples.
  • FIGS. 5a and 5b illustrate a screen 12 in the form of a sector, more or less permeable to winds depending on the material used, mobile on rail 13 and arranged according to the orientation of the incident wind. It can consist of one or more motorized elements, preferably at the immediate periphery of the tower and of sufficient height.
  • FIGS. 6a and 6b illustrate various variants adopting fixed guide vanes 14 for orienting and channeling the wind towards the exchangers 4.
  • These vanes can be distributed either between the oblique posts 2 supporting the shell 1 of the tower (FIG. 6a), either between the vertical posts 6 supporting the exchangers according to an inner ring (fig. 6b ⁇ or again according to an outer ring 15 at the base of the tower, knowing that the latter case requires a box 16 for connection to the lintel 3 of the hull ( Fig. 6b)
  • Various combinations of the previous variants are allowed.
  • the invention is not limited to the exemplary embodiments described, but also encompasses all the technical equivalents meeting the desired goal.
EP78400054A 1977-07-22 1978-07-05 Vorrichtung zur Zugkorrektion in Kühltürmen, insbesondere in solchen mit natürlichem Zug Expired EP0001189B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7722598 1977-07-22
FR7722598A FR2398277A1 (fr) 1977-07-22 1977-07-22 Procede et dispositif pour la correction du tirage dans les tours de refroidissement notamment a tirage naturel

Publications (3)

Publication Number Publication Date
EP0001189A2 true EP0001189A2 (de) 1979-03-21
EP0001189A3 EP0001189A3 (en) 1979-04-04
EP0001189B1 EP0001189B1 (de) 1981-05-20

Family

ID=9193694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78400054A Expired EP0001189B1 (de) 1977-07-22 1978-07-05 Vorrichtung zur Zugkorrektion in Kühltürmen, insbesondere in solchen mit natürlichem Zug

Country Status (5)

Country Link
EP (1) EP0001189B1 (de)
BR (1) BR7804729A (de)
DE (1) DE2860712D1 (de)
FR (1) FR2398277A1 (de)
IT (1) IT1108780B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3057652B1 (fr) * 2016-10-17 2019-09-13 Hamon Thermal Europe (France) Dispositif de controle de flux d'air, destine a equiper une tour de refroidissement, notamment de centrale thermique
CN112611250B (zh) * 2021-01-13 2022-07-29 暨南大学 一种主动式流场重构空冷塔

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB282932A (en) * 1926-10-21 1928-01-05 Karl Wladimir Branczik Improvements in or relating to cooling towers
DE548291C (de) * 1932-04-11 Fritz Uhde Kaminkuehler, dessen Rieseleinbau ueber den Kaminquerschnitt hinausreicht
GB577308A (en) * 1944-11-06 1946-05-13 Frederick Gilbert Mitchell Improvements in or relating to cooling towers
GB616032A (en) * 1946-08-21 1949-01-14 Northmet Power Company Improvements in or relating to cooling towers and their operation
FR1072106A (fr) * 1953-02-23 1954-09-08 Radiateurs cylindriques
FR1235872A (fr) * 1958-09-25 1960-07-08 Gea Luftkuehler Happel Gmbh Perfectionnements apportés aux installations de condensation refroidies par de l'air
GB1045595A (en) * 1964-03-17 1966-10-12 English Electric Co Ltd Dry cooling towers
DE1235343B (de) * 1957-07-17 1967-03-02 Kraftanlagen Ag Rieselkuehler mit Luftleitflaechen
US3367413A (en) * 1965-01-26 1968-02-06 English Electric Co Ltd Cooling towers
DE1960619A1 (de) * 1969-12-03 1971-06-24 Gea Luftkuehler Happel Gmbh Kuehlturm fuer dampffoermige oder fluessige Medien
DE2153967A1 (de) * 1971-10-29 1973-05-10 Kraftwerk Union Ag Naturzug-kuehlturm
FR2198113A1 (de) * 1972-08-29 1974-03-29 Transelektro Magyar Villamossa

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE548291C (de) * 1932-04-11 Fritz Uhde Kaminkuehler, dessen Rieseleinbau ueber den Kaminquerschnitt hinausreicht
GB282932A (en) * 1926-10-21 1928-01-05 Karl Wladimir Branczik Improvements in or relating to cooling towers
GB577308A (en) * 1944-11-06 1946-05-13 Frederick Gilbert Mitchell Improvements in or relating to cooling towers
GB616032A (en) * 1946-08-21 1949-01-14 Northmet Power Company Improvements in or relating to cooling towers and their operation
FR1072106A (fr) * 1953-02-23 1954-09-08 Radiateurs cylindriques
DE1235343B (de) * 1957-07-17 1967-03-02 Kraftanlagen Ag Rieselkuehler mit Luftleitflaechen
FR1235872A (fr) * 1958-09-25 1960-07-08 Gea Luftkuehler Happel Gmbh Perfectionnements apportés aux installations de condensation refroidies par de l'air
GB1045595A (en) * 1964-03-17 1966-10-12 English Electric Co Ltd Dry cooling towers
US3367413A (en) * 1965-01-26 1968-02-06 English Electric Co Ltd Cooling towers
DE1960619A1 (de) * 1969-12-03 1971-06-24 Gea Luftkuehler Happel Gmbh Kuehlturm fuer dampffoermige oder fluessige Medien
DE2153967A1 (de) * 1971-10-29 1973-05-10 Kraftwerk Union Ag Naturzug-kuehlturm
FR2198113A1 (de) * 1972-08-29 1974-03-29 Transelektro Magyar Villamossa

Also Published As

Publication number Publication date
EP0001189A3 (en) 1979-04-04
EP0001189B1 (de) 1981-05-20
IT7868745A0 (it) 1978-07-21
DE2860712D1 (en) 1981-08-27
BR7804729A (pt) 1979-02-28
FR2398277B1 (de) 1981-03-20
IT1108780B (it) 1985-12-09
FR2398277A1 (fr) 1979-02-16

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