EP0371475A1 - Dispositif d'éclaboussement pour échangeurs de chaleur et matière, en particulier tours de refroidissement - Google Patents

Dispositif d'éclaboussement pour échangeurs de chaleur et matière, en particulier tours de refroidissement Download PDF

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Publication number
EP0371475A1
EP0371475A1 EP89121985A EP89121985A EP0371475A1 EP 0371475 A1 EP0371475 A1 EP 0371475A1 EP 89121985 A EP89121985 A EP 89121985A EP 89121985 A EP89121985 A EP 89121985A EP 0371475 A1 EP0371475 A1 EP 0371475A1
Authority
EP
European Patent Office
Prior art keywords
tier
grids
strips
respect
grid
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Withdrawn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
EP89121985A
Other languages
German (de)
English (en)
Inventor
Lyuben Konstantinov Dipl.-Ing. Stambolov
Emilia Lyubenova Dipl.-Ing. Stambolova
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.)
DF "VODOKANALINGENERING"
Original Assignee
DF "VODOKANALINGENERING"
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 DF "VODOKANALINGENERING" filed Critical DF "VODOKANALINGENERING"
Publication of EP0371475A1 publication Critical patent/EP0371475A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F25/00—Component parts of trickle coolers
    • F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
    • F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
    • F28F25/085—Substantially horizontal grids; Blocks

Definitions

  • the invention relates to a sprinkling device for heat and material exchangers, in particular cooling towers, with a dispersing device for a liquid which consists of strip grids made of polymeric material which are held in layers one above the other by means of connecting straps on hangers.
  • Such a sprinkler device for cooling towers is known from BG-A-41770, in which the dispersing device for the liquid is followed by at least two spaced-apart flow-around layers, each of which is formed by a series of cells which are detachably seated via holding members can be connected in small load-bearing beams.
  • the beams are arranged in rows on mounting brackets on hangers, which are separated by spacers.
  • Each stratified flow is positioned so that your cells are staggered with respect to the cells of the neighboring strata.
  • the known sprinkler is unsuitable for gas supply in cross flow. Their dimensions are relatively large and their energy requirements are high. The total evaporation area of the sprinkler system per unit volume is relatively small, since a passage of larger contaminants with the liquid must be ensured. Finally, the known sprinkler requires the production, transportation and assembly of a large number of polymer elements with large dimensions. The known sprinkler is also not suitable for the use of liquids that are contaminated with oils and other surface-active substances.
  • the object of the invention is now to design the generic sprinkler device so that it is suitable for gas supply in cross and countercurrent while ensuring a high volume coefficient of heat and material exchange, even if contaminants in the form of oils and other surface-active substances are present, and can be easily assembled from a small number of components that are simple to manufacture and transport.
  • each connecting strap has an opening for the holder on a hanger and holding members for the floor grille that the Opening of each connection plate is arranged eccentrically with respect to its center and its holding members, that the connection plates for holding the tier grids in two successive floors by 180 ° around a vertical Axis are rotated to each other and that the tier grids of every second tier are rotated by 180 ° to each other about a vertical axis, so that the strips of a tier grid are offset from the corresponding bars of the tier grid of the tier above and below.
  • the strips of a tiered grille are preferably arranged eccentrically in two directions, usually directions perpendicular to one another, with respect to its circumferential strip.
  • the profile height of the circumferential and the stiffening strips of the tier grille is 25mm to 400mm, while the other strips have a profile height of 10mm to 400mm.
  • prismatic W-shaped inserts made of polymeric material are arranged in the openings of the tier grids delimited by strips.
  • the eccentric arrangement of the strips relative to the peripheral strip in at least one direction means that the row of openings along a peripheral edge is narrower than the other openings of the same size. If the strips are arranged eccentrically in two directions with respect to the circumferential strip, this means that the openings located on two adjacent edges of the corresponding tier grid are narrower than the other openings of the tier grid, which are generally of equal size.
  • This makes it possible to join the storey grids into storeys in which the storey grids are mutually rotated with respect to a vertical axis, which means that the strips of the storey grids of adjacent storeys are offset from one another. This also enables the arrangement of more floors made up of stacked floor grids per volume unit with optimal drop impact energy and increased heat and mass transfer coefficient. Cut out grids can fill all shapes.
  • the sprinkler device Since the height of the tier grids is low, the sprinkler device also allows a gas to flow through in countercurrent and countercurrent, and homogenization of the gas stream can be achieved by compressing the tiers in the flow area. Due to the constant formation of droplets and droplet dispersion, a mist of oils and surface-active substances, if any, is torn open, which also promotes heat and mass transfer.
  • the tier grids can be quickly manufactured as one-piece polymer elements with large external dimensions. They are easy to transport, assemble, and easy to operate. By using prismatic inlays when using pure liquids with a high throughput, the homogenization of the gas flow can be improved, whereby the heat and mass transfer coefficient can be increased.
  • the sprinkler device 2 shown in FIG. 1 is arranged in a cooling tower 1 via openings 3 for the supply of a gas stream, not shown, and under nozzles 4 of a pipe-containing distribution device 5 for a liquid.
  • the sprinkler device 2 is suspended via connecting lugs 6 which are connected vertically one above the other with hangers 7 by plugging. Drip catchers 8 are arranged above the distribution device 5.
  • a dispersing device 18 for the liquid is attached under the distribution device 5, which consists of assembled tier grids 19 consists of polymeric material, each of which is made up of eccentrically arranged in relation to the circumference, extending in two directions perpendicular to each other, forming or dispersing strips, between each of which openings are formed, as shown in FIG. 1 for the top two floors and in Fig. 4 for the floor grid 19 is shown.
  • the profile height of the circumferential and stiffening strips of the floor grille 19 is 25mm to 400mm. The remaining strips have a height of 10mm to 400mm.
  • Prismatic polymer inlays 12 with a VVVV shape can be arranged in the openings between the strips of the tier grille 19, which is particularly advantageous for large throughputs of relatively pure liquids.
  • An opening 20 is provided eccentrically in each connecting lug 6 with respect to its center 30.
  • a guiding seat 21 Arranged around the opening 20 on each side of the connecting bracket 6 is a guiding seat 21 which projects perpendicularly therefrom and forms a peg-shaped holding member.
  • the connecting bracket 6 is also provided with connecting pins 13 arranged concentrically with its center.
  • the connecting straps 6 of the vertically successively arranged tier grids 19 are rotated from tier to tier by 180 ° about a vertical axis to one another, while the tier grids 19 in the configuration of the top two levels of FIG. 1 or in the configuration of the tier grating 19 of FIG. 4 are rotated 180 ° to each other on every second floor about a vertical axis.
  • connection of the tier grid 19 to the connecting straps 6 is made in that the corresponding connecting pins 13 of the connecting strap 6 are inserted into sockets 31 on the tier grids.
  • floor grids 19 can also be fixed, as shown as the third floor from above in FIG. 1, in which the drop-forming or dispersing strips extend only in one direction, with the exception of those on the circumference.
  • these floor grilles 19 are rotated by 90 °, 180 °, 270 ° and 360 °, so that they are offset diagonally due to the eccentrically suspended connecting plates 6, which are rotated by 180 ° on each adjacent floor about a vertical axis .
  • the sprinkling device 2 is associated with spatial polymer blocks 9 made of layers 11 with cells 10 around it, which cells have a hexagonal shape in plan view.
  • the flow-around layers 11 of a polymer block 9 are arranged vertically at a certain distance from one another. If the sprinkler device 2 is operated with pure liquids and high throughputs, prismatic inserts 12 with an MM shape can be provided in the cells 10.
  • the cells 10 in the flowed-around layers 11 are detachably attached to cylindrical openings 16 of connection openings 14 of supporting small beams 15 via holding members in the form of connecting pins 13.
  • the supporting beams 15 are attached to the connecting lugs 6 via the cylindrical walls 16 of the connection openings 14, which are attached to the hangers 7.
  • the vertical distance between the flow-around layers 11 of a polymer block 9 and between the individual polymer blocks 9 is determined by spacer bushes 17 which are fastened between the connecting straps 6 and attached to the hangers 7.
  • the flow around layers 11 of a spatial polymer block 9 can thus are arranged so that the cells 10 of each flow-around layer 11 can be displaced in two directions with respect to the cells 10 of their adjacent layers 11.
  • liquid is applied as a liquid mist through the distribution device 5 and the nozzles 4 to the dispersing device 18, which is composed of whole and cut-out tier grids 19 and is homogenized on the top floors.
  • the entire sprinkling device 2 is designed as a dispersing device 18, that is to say without polymer blocks 9, the gas stream being homogenized in the bottom floors of the vertically arranged floor grating 19 by virtue of the fact that the Floors are compacted locally, i.e. they are set with a smaller vertical distance from each other.
  • the profile height of the strips of the floor grid 19 made of polymeric material with dimensions from 25mm to 400mm for the peripheral and load-bearing strips and from 10mm to 400mm for the other strips enables a cross flow of the gas through the spaces between the floors.
  • the sprinkling device 2 works as a pure dispersing device 18.
  • the volume coefficient of the heat and material exchange increases as a result of evaporation processes along the walls of the strips of the tier grille 19 and, along with large throughputs, along the walls the prismatic inlays 12 made of polymeric material in VVVV form in the openings of the tier grille 19 delimited by the strips.
  • the draining of the liquid speed of the floors designed and arranged according to the invention and the impact of the drops on the floor grid 19 is shown in FIG. 7.
  • the displacement of the position of the drop-forming and dripping-dispersing strips in the tier grids 19 is carried out in two operations, namely by rotating the eccentric connecting plates 6 for each subsequent tier by 180 ° about a vertical axis and by rotating the tier grids 19 about a vertical axis by 180 ° on every second floor, the strips of these floor grilles 19 according to FIG. 4 being arranged eccentrically in two directions.
  • the sprinkling device 2 can be designed as a combined device, in which polymer blocks 9 in the form of flows flow vertically under the dispersing device 18 from assembled tier grids 19 made of polymeric material on the hangers 7 with the aid of connecting lugs 6 and spacers 17 Layers 11 with hexagonal cells 10 are held in a staggered or non-staggered shape with respect to the adjacent layers 11 arranged in tiers.
  • the sprinkling device 2 is surrounded by layers 11 of polymeric elements with hexagonal cells 10, or if the dispersing device 18 uses tiered grids 19 whose drop-forming or liquid-dispersing strips, with the exception of the strips, are arranged in parallel in one direction on the circumference, which is the configuration If the floor grid 19 corresponds to the third floor from above in FIG. 1, these are successively around 90 °, 180 °, 270 ° and 360 ° about a vertical axis arranged rotated. A displacement of the polymer elements of the cells 10 can also be provided. To clean the nozzles 4, the corresponding drip catchers 8 are lifted off.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP89121985A 1988-11-30 1989-11-29 Dispositif d'éclaboussement pour échangeurs de chaleur et matière, en particulier tours de refroidissement Withdrawn EP0371475A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG8628488A BG49681A2 (en) 1988-11-30 1988-11-30 Irrigative for cooling towers
BG86284/88 1988-11-30

Publications (1)

Publication Number Publication Date
EP0371475A1 true EP0371475A1 (fr) 1990-06-06

Family

ID=3921239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121985A Withdrawn EP0371475A1 (fr) 1988-11-30 1989-11-29 Dispositif d'éclaboussement pour échangeurs de chaleur et matière, en particulier tours de refroidissement

Country Status (5)

Country Link
EP (1) EP0371475A1 (fr)
JP (1) JPH02258057A (fr)
CN (1) CN1043783A (fr)
BG (1) BG49681A2 (fr)
DD (1) DD301894A9 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437133A1 (fr) * 1989-12-29 1991-07-17 Societe Hamon Dispositif de réfrigération de fluide pour réfrigérant atmosphérique
EP0503547A1 (fr) * 1991-03-13 1992-09-16 SPIG INTERNATIONAL, Societa per Impianti Generali S.p.A. Grille de garnissage pour tour de réfrigération d'eau
EP0519832A1 (fr) * 1991-06-21 1992-12-23 Gec Alsthom Sa Corps d'échange pour réfrigérant atmosphérique à pluie et son procédé de réalisation
EP2762824A1 (fr) * 2013-01-30 2014-08-06 GEA Energietechnik GmbH Élément de liaison pour objets encastrés à grille

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9408229A (pt) * 1993-12-03 1997-08-26 Tower Tech Inc Sistema de captação de escoamento de camadas duplas
JP6411887B2 (ja) * 2011-07-15 2018-10-24 ステレンボッシュ ユニバーシティ 液体冷却設備

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031173A (en) * 1960-02-18 1962-04-24 Fluor Corp Cross-flow cooling tower packing
GB996465A (en) * 1962-05-28 1965-06-30 Fluor Corp Arched packing for cooling towers
DE1542197B1 (de) * 1964-07-10 1970-06-18 Maurice Hamon Vorrichtung zum Kontaktieren einer Fluessigkeit mit einem Gas
US3751017A (en) * 1971-04-23 1973-08-07 Hamon Sobelco Sa Cooling tower
US4678615A (en) * 1986-07-23 1987-07-07 Dspie "D. Blagoev" Cooling stack for cooling towers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031173A (en) * 1960-02-18 1962-04-24 Fluor Corp Cross-flow cooling tower packing
GB996465A (en) * 1962-05-28 1965-06-30 Fluor Corp Arched packing for cooling towers
DE1542197B1 (de) * 1964-07-10 1970-06-18 Maurice Hamon Vorrichtung zum Kontaktieren einer Fluessigkeit mit einem Gas
US3751017A (en) * 1971-04-23 1973-08-07 Hamon Sobelco Sa Cooling tower
US4678615A (en) * 1986-07-23 1987-07-07 Dspie "D. Blagoev" Cooling stack for cooling towers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 1, Nr. 79 (C-21)[1539], 26. Juli 1977; & JP-A-52 41 165 (MITSUBISHI JOSHI K.K.) 30-03-1977 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437133A1 (fr) * 1989-12-29 1991-07-17 Societe Hamon Dispositif de réfrigération de fluide pour réfrigérant atmosphérique
EP0503547A1 (fr) * 1991-03-13 1992-09-16 SPIG INTERNATIONAL, Societa per Impianti Generali S.p.A. Grille de garnissage pour tour de réfrigération d'eau
EP0519832A1 (fr) * 1991-06-21 1992-12-23 Gec Alsthom Sa Corps d'échange pour réfrigérant atmosphérique à pluie et son procédé de réalisation
FR2678053A1 (fr) * 1991-06-21 1992-12-24 Alsthom Gec Corps d'echange pour refrigerant atmospherique a pluie et son procede de realisation.
EP2762824A1 (fr) * 2013-01-30 2014-08-06 GEA Energietechnik GmbH Élément de liaison pour objets encastrés à grille

Also Published As

Publication number Publication date
BG49681A2 (en) 1992-01-15
CN1043783A (zh) 1990-07-11
DD301894A9 (de) 1994-06-23
JPH02258057A (ja) 1990-10-18

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