EP0050699A1 - Multi-pressure air condenser battery for condensation of exhaust steam and a unit containing such batteries - Google Patents

Multi-pressure air condenser battery for condensation of exhaust steam and a unit containing such batteries Download PDF

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Publication number
EP0050699A1
EP0050699A1 EP80870047A EP80870047A EP0050699A1 EP 0050699 A1 EP0050699 A1 EP 0050699A1 EP 80870047 A EP80870047 A EP 80870047A EP 80870047 A EP80870047 A EP 80870047A EP 0050699 A1 EP0050699 A1 EP 0050699A1
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EP
European Patent Office
Prior art keywords
tubes
condensation
boxes
box
degassing
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Granted
Application number
EP80870047A
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German (de)
French (fr)
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EP0050699B1 (en
Inventor
André Jules Paquet
Franz Materne Bouton
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Hamon Sobelco SA
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Hamon Sobelco SA
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Priority to EP80870047A priority Critical patent/EP0050699B1/en
Priority to AT80870047T priority patent/ATE7959T1/en
Priority to DE8080870047T priority patent/DE3068238D1/en
Publication of EP0050699A1 publication Critical patent/EP0050699A1/en
Application granted granted Critical
Publication of EP0050699B1 publication Critical patent/EP0050699B1/en
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    • 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

Definitions

  • the present invention relates to special arrangements in a condenser with direct air condensation for the production of different condensing pressures and temperatures at the exhaust of the low pressure bodies of a turbine with multiple exhaust bodies.
  • Figure 1 schematically shows two end enclosures 10 and 20 communicating with each other by a bundle of heat exchange tubes 5, 6.
  • the space in which the heat exchange tubes extend is traversed by a flow of air A which externally scans the tubes 5 and 6 in order to cause vapor condensation there.
  • the terminal enclosures 10 and 20 are divided into several boxes.
  • the enclosures 10 and 20 are divided, for example, into two boxes separated by a common partition.
  • the enclosure 10 is divided into two boxes 1 and 2 by a partition 11 and the enclosure 20 is divided into two boxes 3 and 4 by a partition 21.
  • In the box 1 opens a first group of condensation tubes and in box 2 opens another group of condensation tubes.
  • Each of these groups of condensation tubes also opens into a separate box, respectively 3 and 4, of the enclosure 20.
  • the boxes 1 and 3 on the one hand and the boxes 2 and 4 on the other hand are thus in communication between them by a group of condensation tubes.
  • Boxes 1 and 2 serve as steam inlet boxes connected to the exhausts of the low-pressure bodies of a turbine with multiple exhaust bodies through the pipes 7. Boxes 1 and 2 receive steam at different pressures and temperatures . These boxes 1 and 2 are in turn divided by an internal partition, 12 and 13 respectively, to form degassing boxes 14 and 15 within these inlet boxes.
  • Each group of condensation tubes is thus divided into two subgroups of tubes: a subgroup of downward tubes 5 and a subgroup of ascending tubes 6. Considering for example the group of tubes which extends between the boxes 1 and 3, a sub-group of descending tubes 5 opens into the box 1 outside of the degassing box 14 and a sub-group of tubes 6 opens into the inside of the degassing box.
  • Boxes 3 and 4 serve as condensate outlet boxes and non-condensing steam reversal boxes. The condensates are evacuated via lines 8.
  • the operation of the condensing unit is as follows.
  • the steam enters the coil through the inlet boxes 1 and 2. It descends towards the outlet boxes 3 and 4 through the tubes 5.
  • a flow of cooling air A blown or sucked in, with natural or forced circulation, circulates outside tubes, successively sweeping the bundle of colder tubes then the bundle of warmer tubes, and it causes the condensation of the vapor in the tubes 5.
  • the condensates of the steam flow towards the boxes 3 and 4, parallel to the vapor current.
  • FIG. 2 shows an embodiment in which the steam is supplied from the bottom into the inlet boxes 1 and 2 and in which the degassing boxes 14 and 15 are also located at the bottom of the battery.
  • Boxes 3 and 4 are used here as non-condensing vapor inversion boxes.
  • the condensates which form in the tubes 6 fall back towards the inlet boxes 1 and 2 and the condensates which form in the tubes 5 descend into the degassing boxes 14 and 15, from where they are evacuated towards the boxes of input 1 and 2 via a hydraulic guard. All the condensates are evacuated from boxes 1 and 2 through lines 8.
  • the hot and cold beams can also be arranged at head to tail as illustrated in FIG. 3.
  • the steam inlet box 1 is placed at the bottom of the battery and the steam inlet box 2 is placed at the top of the battery.
  • the reversing box 3 is located at the top of the battery to be in communication with the inlet box 1 by the first group of condensing tubes and the outlet box 4 is arranged at the bottom of the battery.
  • the condensate outlets 8 are always at the bottom of the battery.
  • a degassing box 14 is formed in the inlet box 1 at the bottom of the battery and the other degassing box 15 is formed in the inlet box 2 at the top of the battery.
  • a passage 16 is provided between the box 4 and the degassing box 14.
  • the vents 9 for the incondensables are therefore arranged one at the bottom of the battery and the other at the top of the battery.
  • This embodiment can be performed with hot steam supply from the top and cold steam supply from the bottom, or vice versa.
  • Figures 4, 5 and 6 illustrate variants of the arrangements of Figures 1, 2 and 3 respectively.
  • the coldest degassing box 14 is provided with a degassing pipe 9
  • the degassing box 15 of the warmer group (or each degassing box of a warmer group) is provided with means 17 for pour the incondensable gases from this group into the degassing box 14 ( Figures 4 and 5) or into the reversing box 3 ( Figure 6) of a cooler group.
  • the inlet boxes and the outlet and reversing boxes as well as the degassing boxes can have any geometric shape: parallelepiped, cylindrical or other.
  • the different boxes instead of being formed by means of common partitions in the terminal enclosures as illustrated in the attached drawings, can consist of separate boxes fitted with one-piece tubular plates or separate plates. It will be recalled here that the number of boxes with different pressures and temperatures can be greater than two.
  • the tube bundle it is understood that it can extend not only vertically as illustrated in FIGS. 1 to 6, but also obliquely and horizontally. In the latter case, the condensate is evacuated not only by natural flow, but also by the breath of steam.
  • FIGS 7 and 8 show by way of example how two top-to-tail condensing batteries according to the invention can be combined with a common hot steam inlet manifold 10.
  • the two batteries are denoted 100 and 200.
  • the box hot steam inlet 2, which is common, is arranged at the top of the assembly, the cold steam inlet boxes 1 are arranged at the bottom of each battery in the enclosures 20A and 20B.
  • the same reference numerals as in the previous figures denote similar elements having equivalent functions.
  • a fan 30 is arranged at the bottom of the assembly to blow air through the batteries 100 and 200 so that the air sweeps outwardly the condensation tubes, successively attacking the bundle of cooler tubes, then the bundle of hotter tubes.

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  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

1. Multi-pressure air condenser battery for creating different condensation pressures and temperatures at the exhausts of the different low pressure stages of a multiple stage turbine, said battery comprising a set of condensation tubes extending between two terminal headers and being cooled by an air flow that passes over the tubes successively, characterized in that the bundle of condensation tubes (5, 6) is divided into a plurality of distinct groups, the tubes in each group extending between a vapour inlet chamber (1, 2) and a condensate outlet chamber (3, 4), each vapour inlet chamber (1, 2) being connected separately to the outlet of a distinct low pressure stage of the turbine and each condensate outlet chamber (3, 4) being connected to a condensate exhaust line (8) such that the different groups of condensation tubes form vapour circuits fed in parallel and successively in contact with the cooling air flow.

Description

La présente invention concerne des dispositions particulières dans un condenseur à condensation directe par air en vue de la réalisation de pressions et températures de condensation différentes à l'échappement des corps basse pression d'une turbine à corps d'échappement multiple.The present invention relates to special arrangements in a condenser with direct air condensation for the production of different condensing pressures and temperatures at the exhaust of the low pressure bodies of a turbine with multiple exhaust bodies.

Dans les centrales électriques thermiques classiques ou nucléaires, et dans le cas de turbines à fonds d'échappement multiples, il est apparu comme hautement rentable de réaliser des vides différents aux condenseurs partiels afférant aux différents fonds. Ces vides différents résultent de l'isolation côté vapeur de chacun des condenseurs et de leur alimentation en série par l'eau de refroidissement. Le niveau du gain de rendement qui en résulte dépend de la courbe d'efficacité de la turbine en fonction du vide.In conventional thermal or nuclear power plants, and in the case of turbines with multiple exhaust bottoms, it has appeared to be highly profitable to produce different voids with partial condensers pertaining to the different bottoms. These different voids result from the vapor side insulation of each of the condensers and their supply in series with cooling water. The resulting level of efficiency gain depends on the efficiency curve of the turbine as a function of vacuum.

Une telle conception de vides multiples n'a jamais été réalisée en condensation directe par air, étant donné les difficultés apparentes d'isolation côté vapeur d'une part et d'extraction des incondensables d'autre part.Such a design of multiple voids has never been carried out in direct condensation by air, given the apparent difficulties of insulation on the vapor side on the one hand and extraction of the incondensables on the other hand.

Ce problème est résolu suivant l'invention par une batterie de condensation directe par air dans laquelle les enceintes terminales sont chacune divisées en plusieurs boites, chaque boite appartenant à une desdites enceintes terminales étant en communication avec une boite appartenant à l'autre desdites enceintes terminales par l'intermédiaire d'un groupe de tubes de condensation.This problem is solved according to the invention by a battery of direct air condensation in which the terminal enclosures are each divided into several boxes, each box belonging to one of said terminal enclosures being in communication with a box belonging to the other of said terminal enclosures through a group of condensing tubes.

L'invention est exposée plus en détail dans ce qui suit sur quelques exemples typiques de modes de réalisation illustrés aux dessins ci-annexés sur lesquels:

  • - la figure 1 représente schématiquement l'agencement intérieur d'une batterie de condensation suivant un premier mode de réalisation de l'invention,
  • - la figure 2 est une vue éclatée de l'agencement intérieur d'une batterie de condensation suivant un deuxième mode de réalisation de l'invention,
  • - la figure 3 est une vue éclatée de l'agencement intérieur d'une batterie de condensation suivant un troisième mode de réalisation de l'invention,
  • - les figures 4,5 et 6 illustrent des variantes d'exécution des agencements représentés aux figures 1,2 et 3 respectivement,
  • - la figure 7 représente schématiquement un ensemble combinant deux batteries de condensation selon l'invention,
  • - la figure 8 est une coupe suivant la ligne VIII-VIII de la figure 7.
The invention is explained in more detail below in a few typical examples of embodiments illustrated in the attached drawings in which:
  • FIG. 1 schematically represents the interior arrangement of a condensation battery according to a first embodiment of the invention,
  • FIG. 2 is an exploded view of the interior arrangement of a condensation battery according to a second embodiment of the invention,
  • FIG. 3 is an exploded view of the interior arrangement of a condensation battery according to a third embodiment of the invention,
  • FIGS. 4,5 and 6 illustrate alternative embodiments of the arrangements shown in FIGS. 1,2 and 3 respectively,
  • FIG. 7 schematically represents an assembly combining two condensing batteries according to the invention,
  • - Figure 8 is a section along line VIII-VIII of Figure 7.

La figure 1 montre schématiquement deux enceintes terminales 10 et 20 communiquant entre elles par un faisceau de tubes d'échange de chaleur 5, 6. L'espace dans lequel s'étendent les tubes d'échange de chaleur est traversé par un flux d'air A qui balaie extérieurement les tubes 5 et 6 afin d'y provoquer la condensation de vapeur.Figure 1 schematically shows two end enclosures 10 and 20 communicating with each other by a bundle of heat exchange tubes 5, 6. The space in which the heat exchange tubes extend is traversed by a flow of air A which externally scans the tubes 5 and 6 in order to cause vapor condensation there.

Suivant l'invention, les enceintes terminales 10 et 20 sont divisées en plusieurs boites. Sur la figure 1 les enceintes 10 et 20 sont divisées à titre d'exemple en deux boites séparées par une cloison commune. L'enceinte 10 est divisée en deux boites 1 et 2 par une cloison 11 et l'enceinte 20 est divisée en deux boites 3 et 4 par une cloison 21. Dans la boite 1 débouche un premier groupe de tubes de condensation et dans la boite 2 débouche un autre groupe de tubes de condensation. Chacun de ces groupes de tubes de condensation débouche également dans une boite distincte, respectivement 3 et 4, de l'enceinte 20. Les boites 1 et 3 d'une part et les boites 2 et 4 d'autre part se trouvent ainsi en communication entre elles par un groupe de tubes de condensation.According to the invention, the terminal enclosures 10 and 20 are divided into several boxes. In FIG. 1, the enclosures 10 and 20 are divided, for example, into two boxes separated by a common partition. The enclosure 10 is divided into two boxes 1 and 2 by a partition 11 and the enclosure 20 is divided into two boxes 3 and 4 by a partition 21. In the box 1 opens a first group of condensation tubes and in box 2 opens another group of condensation tubes. Each of these groups of condensation tubes also opens into a separate box, respectively 3 and 4, of the enclosure 20. The boxes 1 and 3 on the one hand and the boxes 2 and 4 on the other hand are thus in communication between them by a group of condensation tubes.

Les boites 1 et 2 servent de boites d'entrée de vapeur connectées aux échappements des corps basse pression d'une turbine à corps d'échappement multiple par les conduites 7. Les boites 1 et 2 reçoivent de la vapeur à des pressions et températures différentes. Ces boites 1 et 2 sont à leur tour divisées par une cloison interne, 12 et 13 respectivement, pour former des boites de dégazage 14 et 15 au sein de ces boites d'entrée. Chaque groupe de tubes de condensation se trouve ainsi partagé en deux sous-groupes de tubes: un sous-groupe de tubes descendants 5 et un sous-groupe de tubes ascendants 6. Considérant par exemple le groupe de tubes qui s'étend entre les boites 1 et 3, un sous-groupe de tubes descendahts 5 débouche dans la boite 1 à l'extérieur de la boite de dégazage 14 et un sous-groupe de tubes 6 débouche à l'intérieur de la boite de dégazage. Les boites 3 et 4 servent de boites de sortie des condensats et de boites d'inversion de la vapeur non condensée. Les condensats sont évacués par les conduites 8.Boxes 1 and 2 serve as steam inlet boxes connected to the exhausts of the low-pressure bodies of a turbine with multiple exhaust bodies through the pipes 7. Boxes 1 and 2 receive steam at different pressures and temperatures . These boxes 1 and 2 are in turn divided by an internal partition, 12 and 13 respectively, to form degassing boxes 14 and 15 within these inlet boxes. Each group of condensation tubes is thus divided into two subgroups of tubes: a subgroup of downward tubes 5 and a subgroup of ascending tubes 6. Considering for example the group of tubes which extends between the boxes 1 and 3, a sub-group of descending tubes 5 opens into the box 1 outside of the degassing box 14 and a sub-group of tubes 6 opens into the inside of the degassing box. Boxes 3 and 4 serve as condensate outlet boxes and non-condensing steam reversal boxes. The condensates are evacuated via lines 8.

Le fonctionnement de l'ensemble de condensation est le suivant. La vapeur pénètre dans la batterie par les boites d'entrée 1 et 2. Elle descend vers les boites de sortie 3 et 4 par les tubes 5. Un débit d'air de refroidissement A, soufflé ou aspiré, à circulation naturelle ou forcée, circule à l'extérieur des tubes, balayant successivement le faisceau de tubes plus froids puis le faisceau de tubes plus chauds, et il provoque la condensation de la vapeur dans les tubes 5. Sous l'effet de la pesanteur, les condensats de la vapeur s'écoulent vers les boites 3 et 4, parallèlement au courant de vapeur.The operation of the condensing unit is as follows. The steam enters the coil through the inlet boxes 1 and 2. It descends towards the outlet boxes 3 and 4 through the tubes 5. A flow of cooling air A, blown or sucked in, with natural or forced circulation, circulates outside tubes, successively sweeping the bundle of colder tubes then the bundle of warmer tubes, and it causes the condensation of the vapor in the tubes 5. Under the effect of gravity, the condensates of the steam flow towards the boxes 3 and 4, parallel to the vapor current.

La vapeur non condensée dans les boites 3 et 4 remonte par les tubes 6 vers les boites de dégazage 14 et 15. La vapeur se condense presque totalement dans ces tubes 6. Sous l'effet de la pesanteur, les condensats produits dans les tubes 6 s'écoulent vers les boites de sortie 3 et 4, à contre-courant de la vapeur. Les gaz incondensables, accompagnés d'une petite quantité de vapeur saturante, sont évacués vers des extracteurs d'incondensables par les évents 9. Les condensats sont évacués des boites 3 et 4 par les sorties 8. L'évacuation froide peut être déchargée dans l'évacuation chaude par une garde hydraulioue de hauteur suffisante,The non-condensed steam in the boxes 3 and 4 rises through the tubes 6 towards the degassing boxes 14 and 15. The vapor condenses almost completely in these tubes 6. Under the effect of gravity, the condensates produced in the tubes 6 flow to outlet boxes 3 and 4, against the flow of steam. The incondensable gases, accompanied by a small amount of saturated vapor, are evacuated towards noncondensable extractors by the vents 9. The condensates are evacuated from the boxes 3 and 4 by the outlets 8. The cold evacuation can be discharged into the '' hot evacuation by a hydraulic guard of sufficient height,

La figure 2 représente un mode de réalisation dans lequel l'alimentation en vapeur se fait par le bas dans les boites d'entrée 1 et 2 et dans lequel les boites de dégazage 14 et 15 se trouvent également au bas de la batterie. Les boites 3 et 4 servent ici de boites d'inversion de vapeur non condensée. Les condensats qui se forment dans les tubes 6 retombent vers les boites d'entrée 1 et 2 et les condensats qui se forment dans les tubes 5 descendent dans les boites de dégazage 14 et 15, d'où ils sont évacués vers les boites d'entrée 1 et 2 via une garde hydraulique. Tous les condensats sont évacués des boites 1 et 2 par les conduites 8.FIG. 2 shows an embodiment in which the steam is supplied from the bottom into the inlet boxes 1 and 2 and in which the degassing boxes 14 and 15 are also located at the bottom of the battery. Boxes 3 and 4 are used here as non-condensing vapor inversion boxes. The condensates which form in the tubes 6 fall back towards the inlet boxes 1 and 2 and the condensates which form in the tubes 5 descend into the degassing boxes 14 and 15, from where they are evacuated towards the boxes of input 1 and 2 via a hydraulic guard. All the condensates are evacuated from boxes 1 and 2 through lines 8.

Les faisceaux chaud et froid peuvent également être disposés en tête-bêche comme illustré à la figure 3. Dans cet exemple, la boite d'entrée de vapeur 1 est disposée au bas de la batterie et la boite d'entrée de vapeur 2 est disposée dans le haut de la batterie. La boite d'inversion 3 est située dans le haut de la batterie pour être en communication avec la boite d'entrée 1 par le premier groupe de tubes de condensation et la boite de sortie 4 est disposée au bas de la batterie. Les sorties de condensats 8 sont toujours au bas de la batterie. Une boite de dégazage 14 est formée dans la boite d'entrée 1 au bas de la batterie et l'autre boite de dégazage 15 est formée dans la boite d'entrée 2 au haut de la batterie. Un passage 16 est prévu entre la boite 4 et la boite de dégazage 14. Les évents 9 pour les incondensables sont donc disposés l'un au bas de la batterie et l'autre dans le haut de la batterie. Ce mode de réalisation peut être exécuté avec alimentation en vapeur chaude par le haut et alimentation en vapeur froide par le bas, ou inversement.The hot and cold beams can also be arranged at head to tail as illustrated in FIG. 3. In this example, the steam inlet box 1 is placed at the bottom of the battery and the steam inlet box 2 is placed at the top of the battery. The reversing box 3 is located at the top of the battery to be in communication with the inlet box 1 by the first group of condensing tubes and the outlet box 4 is arranged at the bottom of the battery. The condensate outlets 8 are always at the bottom of the battery. A degassing box 14 is formed in the inlet box 1 at the bottom of the battery and the other degassing box 15 is formed in the inlet box 2 at the top of the battery. A passage 16 is provided between the box 4 and the degassing box 14. The vents 9 for the incondensables are therefore arranged one at the bottom of the battery and the other at the top of the battery. This embodiment can be performed with hot steam supply from the top and cold steam supply from the bottom, or vice versa.

Les figures 4, 5 et 6 illustrent des variantes des dispositions des figures 1, 2 et 3 respectivement. Dans ces variantes, la boite de dégazage la plus froide 14 est munie d'une tubulure de dégazage 9, la boite de dégazage 15 du groupe plus chaud (ou chaque boite de dégazage d'un groupe plus chaud) est munie de moyens 17 pour déverser les gaz incondensables de ce groupe dans la boite de dégazage 14 (figures 4 et 5) ou dans la boite d'inversion 3 (figure 6) d'un groupe plus froid.Figures 4, 5 and 6 illustrate variants of the arrangements of Figures 1, 2 and 3 respectively. In these variants, the coldest degassing box 14 is provided with a degassing pipe 9, the degassing box 15 of the warmer group (or each degassing box of a warmer group) is provided with means 17 for pour the incondensable gases from this group into the degassing box 14 (Figures 4 and 5) or into the reversing box 3 (Figure 6) of a cooler group.

Dans les exemples décrits et illustrés il est bien entendu que les boites d'entrée et les boites de sortie et d'inversion ainsi que les boites de dégazage peuvent avoir une forme géométrique quelconque: parallélipipédique, cylindrique ou autre. Egalement, les différentes boites , au lieu d'être formées au moyen de cloisons communes dans les enceintes terminales comme illustré sur les dessins ci-annexés, peuvent être constituées de boites séparées équipées de plaques tubulaires d'une pièce ou de plaques distinctes. On rappellera ici que le nombre de boites à pressions et températures différentes peut être supérieur à deux. Quant au faisceau tubulaire, il est bien entendu qu'il peut s'étendre non seulement verticalement comme illustré aux figures 1 à 6, mais également obliquement et horizontalement. Dans ce dernier cas, l'évacuation des condensats est assurée, non seulement par écoulement naturel, mais également par le souffle de la vapeur.In the examples described and illustrated, it is understood that the inlet boxes and the outlet and reversing boxes as well as the degassing boxes can have any geometric shape: parallelepiped, cylindrical or other. Also, the different boxes, instead of being formed by means of common partitions in the terminal enclosures as illustrated in the attached drawings, can consist of separate boxes fitted with one-piece tubular plates or separate plates. It will be recalled here that the number of boxes with different pressures and temperatures can be greater than two. As for the tube bundle, it is understood that it can extend not only vertically as illustrated in FIGS. 1 to 6, but also obliquely and horizontally. In the latter case, the condensate is evacuated not only by natural flow, but also by the breath of steam.

Les figures 7 et 8 montrent à titre d'exemple comment deux batteries de condensation en tête-bêche selon l'invention peuvent être combinées avec un collecteur d'entrée de vapeur chaude commun 10.Les deux batteries sont notées 100 et 200. La boite d'entrée de vapeur chaude 2, qui est commune, est disposée dans le haut de l'ensemble,les boites d'entrée de vapeur froide 1 sont disposées au bas de chaque batterie dans les enceintes 20A et 20B. Sur ces figures les mêmes références numériques que sur les figures précédentes désignent des éléments similaires ayant des fonctions équivalentes. On distingue le cloisonnement des enceintes terminales 10, 20A, 20B conformément aux principes décrits plus haut. Un ventilateur 30 est disposé dans le bas de l'ensemble pour souffler l'air à travers les batteries 100 et 200 en sorte que l'air balaie extérieurement les tubes de condensation, attaquant successivement le faisceau de tubes plus froids, puis le faisceau de tubes plus chauds.Figures 7 and 8 show by way of example how two top-to-tail condensing batteries according to the invention can be combined with a common hot steam inlet manifold 10. The two batteries are denoted 100 and 200. The box hot steam inlet 2, which is common, is arranged at the top of the assembly, the cold steam inlet boxes 1 are arranged at the bottom of each battery in the enclosures 20A and 20B. In these figures the same reference numerals as in the previous figures denote similar elements having equivalent functions. We distinguish the partitioning of terminal enclosures 10, 20A, 20B in accordance with the principles described above. A fan 30 is arranged at the bottom of the assembly to blow air through the batteries 100 and 200 so that the air sweeps outwardly the condensation tubes, successively attacking the bundle of cooler tubes, then the bundle of hotter tubes.

Claims (6)

1. Batterie de condensation directe par air pour la réalisation de pressions et de températures de condensation différentes aux échappements des différents corps basse pression d'une turbine à corps d'échappement multiple, cette batterie comportant un faisceau de tubes de condensation qui s'étend entre deux enceintes terminales et qui est refroidi par un flux d'air qui balaie les tubes successivement, caractérisée en ce que les enceintes terminales (10,20) sont chacune divisées en plusieurs boites (1,2; 3,4), chaque boite appartenant à une desdites enceintes terminales (par exemple 1) étant en communication avec une boite appartenant à l'autre desdites enceintes terminales (par exemple 3) par l'intermédiaire d'un groupe desdits tubes de condensation (5,6).1. Direct air condensing coil for producing different condensing pressures and temperatures at the exhausts of the various low pressure bodies of a turbine with multiple exhaust bodies, this coil comprising a bundle of condensing tubes which extends between two terminal enclosures and which is cooled by an air flow which sweeps the tubes successively, characterized in that the terminal enclosures (10,20) are each divided into several boxes (1,2; 3,4), each box belonging to one of said terminal enclosures (for example 1) being in communication with a box belonging to the other of said terminal enclosures (for example 3) via a group of said condensation tubes (5,6). 2. Batterie de condensation selon la revendication 1, dans laquelle les boites appartenant à l'une au moins des enceintes terminales sont séparées l'une de l'autre par au moins une cloison commune (par exemple 11, 21).2. Condensation coil according to claim 1, in which the boxes belonging to at least one of the terminal enclosures are separated from each other by at least one common partition (for example 11, 21). 3. Batterie de condensation selon l'une quelconque des revendications 1 et 2, dans laquelle une au moins desdites boites comporte une cloison (par exemple 12) pour former une boite interne (par exemple 4) isolant, dans le groupe de tubes de condensation qui y débouchent, deux sous-groupes de tubes (5, 6) parcourus par des courants de vapeur en sens opposés.3. Condensation coil according to any one of claims 1 and 2, in which at least one of said boxes comprises a partition (for example 12) to form an insulating internal box (for example 4), in the group of condensation tubes which open there, two subgroups of tubes (5, 6) traversed by steam currents in opposite directions. 4. Batterie de condensation selon la revendication 3, dans laquelle au moins une boite interne (par exemple 14) est munie d'une tubulure de dégazage (9) pour l'extraction des gaz incondensables.4. Condensing coil according to claim 3, wherein at least one internal box (for example 14) is provided with a degassing pipe (9) for the extraction of noncondensable gases. 5. Batterie de condensation selon la revendication 3, dans laquelle la boite de dégazage la plus froide (par exemple 14) est munie d'une tubulure de dégazage (9), les boites de dégazage des groupes plus chauds (par exemple 15) étant munies de moyens (17) pour déverser les gaz incondensables de ces groupes dans la boite d'inversion (3) ou de dégazage (14) d'un groupe plus froid.5. Condensation coil according to claim 3, in which the coldest degassing box (for example 14) is provided with a degassing pipe (9), the degassing boxes of the hotter groups (for example 15) being provided with means (17) for discharging the incondensable gases of these groups in the reversing (3) or degassing (14) box of a cooler group. 6. Ensemble de condensation, caractérisé en ce qu'il comprend plusieurs batteries selon l'une quelconque des revendications 1 à 5 (par exemple 100, 200), une desdites enceintes terminales (par exemple 10) étant commune à plusieurs desdites batteries.6. Condensing assembly, characterized in that it comprises several batteries according to any one of claims 1 to 5 (for example 100, 200), one of said terminal enclosures (for example 10) being common to several of said batteries.
EP80870047A 1980-10-23 1980-10-23 Multi-pressure air condenser battery for condensation of exhaust steam and a unit containing such batteries Expired EP0050699B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP80870047A EP0050699B1 (en) 1980-10-23 1980-10-23 Multi-pressure air condenser battery for condensation of exhaust steam and a unit containing such batteries
AT80870047T ATE7959T1 (en) 1980-10-23 1980-10-23 MULTIPLE PRESSURE AIR CONDENSER BATTERY AND SYSTEM EQUIPPED WITH SUCH BATTERIES.
DE8080870047T DE3068238D1 (en) 1980-10-23 1980-10-23 Multi-pressure air condenser battery for condensation of exhaust steam and a unit containing such batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80870047A EP0050699B1 (en) 1980-10-23 1980-10-23 Multi-pressure air condenser battery for condensation of exhaust steam and a unit containing such batteries

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EP0050699A1 true EP0050699A1 (en) 1982-05-05
EP0050699B1 EP0050699B1 (en) 1984-06-13

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AT (1) ATE7959T1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545366A1 (en) * 1991-12-05 1993-06-09 Michael William Larinoff Air cooled vacuum steam condenser with flow-equalized mini-bundles
US20190390910A1 (en) * 2018-06-25 2019-12-26 General Electric Company Condenser system, and condensate vessel assembly for power plant

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Publication number Priority date Publication date Assignee Title
US1777280A (en) * 1927-03-04 1930-10-07 Ingersoll Rand Co Steam-condensing apparatus
FR805234A (en) * 1936-04-22 1936-11-14 Sentinel Waggon Works Ltd Steam condenser
FR1218431A (en) * 1958-05-12 1960-05-10 Gea Luftkuehler Happel Gmbh Improvements to air-cooled surface condensers
FR2112497A3 (en) * 1970-11-06 1972-06-16 Carrier Corp Heat exchanger or condenser - with aluminium tubes in series of horizontal rows between vertical headers
FR2114630A5 (en) * 1970-11-13 1972-06-30 Kraftwerk Union Ag
US3675710A (en) * 1971-03-08 1972-07-11 Roderick E Ristow High efficiency vapor condenser and method
US4106559A (en) * 1976-12-29 1978-08-15 Westinghouse Electric Corp. Tube side flow control device for moisture separator reheaters
DE2817821A1 (en) * 1977-04-26 1978-11-02 Snam Progetti AIR COOLER
GB2029250A (en) * 1978-09-05 1980-03-19 Apv Spiro Gills Ltd Water chilling plant

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1777280A (en) * 1927-03-04 1930-10-07 Ingersoll Rand Co Steam-condensing apparatus
FR805234A (en) * 1936-04-22 1936-11-14 Sentinel Waggon Works Ltd Steam condenser
FR1218431A (en) * 1958-05-12 1960-05-10 Gea Luftkuehler Happel Gmbh Improvements to air-cooled surface condensers
FR2112497A3 (en) * 1970-11-06 1972-06-16 Carrier Corp Heat exchanger or condenser - with aluminium tubes in series of horizontal rows between vertical headers
FR2114630A5 (en) * 1970-11-13 1972-06-30 Kraftwerk Union Ag
US3675710A (en) * 1971-03-08 1972-07-11 Roderick E Ristow High efficiency vapor condenser and method
US4106559A (en) * 1976-12-29 1978-08-15 Westinghouse Electric Corp. Tube side flow control device for moisture separator reheaters
DE2817821A1 (en) * 1977-04-26 1978-11-02 Snam Progetti AIR COOLER
GB2029250A (en) * 1978-09-05 1980-03-19 Apv Spiro Gills Ltd Water chilling plant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545366A1 (en) * 1991-12-05 1993-06-09 Michael William Larinoff Air cooled vacuum steam condenser with flow-equalized mini-bundles
US20190390910A1 (en) * 2018-06-25 2019-12-26 General Electric Company Condenser system, and condensate vessel assembly for power plant

Also Published As

Publication number Publication date
DE3068238D1 (en) 1984-07-19
EP0050699B1 (en) 1984-06-13
ATE7959T1 (en) 1984-06-15

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