WO2013117669A1 - Grille d'entrée à barre de nettoyage - Google Patents

Grille d'entrée à barre de nettoyage Download PDF

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Publication number
WO2013117669A1
WO2013117669A1 PCT/EP2013/052474 EP2013052474W WO2013117669A1 WO 2013117669 A1 WO2013117669 A1 WO 2013117669A1 EP 2013052474 W EP2013052474 W EP 2013052474W WO 2013117669 A1 WO2013117669 A1 WO 2013117669A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic cylinder
bars
rake
inlet
cleaning strip
Prior art date
Application number
PCT/EP2013/052474
Other languages
German (de)
English (en)
Inventor
Günter FELLA
Original Assignee
Fella Maschinenbau Gmbh
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 Fella Maschinenbau Gmbh filed Critical Fella Maschinenbau Gmbh
Priority to DE112013000885.8T priority Critical patent/DE112013000885A5/de
Publication of WO2013117669A1 publication Critical patent/WO2013117669A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
    • E02B8/023—Arresting devices for waterborne materials
    • E02B8/026—Cleaning devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/08—Details, e.g. gates, screens
    • E02B5/085—Arresting devices for waterborne materials, e.g. gratings

Definitions

  • the invention relates to an inlet rake of a hydroelectric power plant with a
  • the invention relates to an inlet rake of a hydroelectric power plant with bars, which are oriented horizontally in the flow direction of the water or arranged with a slight inclination to the horizontal.
  • Tyrolean weir or Tyrolean inlet rake are arranged in the lattice Waller in the longitudinal direction of the water flow down and the water falls through the bars into an underlying shaft, while attachment to the grid pushed away.
  • this self-cleaning inlet rake requires a certain height and thus a loss of fall height.
  • Inlet rake drops the water from top to bottom through the rake.
  • Attachment can come to rest on the inlet rake and through the
  • Drive devices can stand laterally beyond the cross section of the shaft. This results in the additional problem of achieving a working range of the drive over the entire length or approximately the entire length of the run-in rake.
  • the present invention is therefore an object of the invention to provide a drive for a cleaning strip of a horizontal Einlaufrechens for a hydroelectric power plant available, which can work reliably under water with sufficient force and little installation space.
  • an inlet rake of a hydroelectric power plant with bars, which are oriented horizontally in the flow direction of the water, or arranged with a slight inclination to the horizontal, or in an alternative embodiment with bars, which are oriented transversely to the flow direction of the water, wherein the upper edges in the flow direction follow each other horizontally or with a slight inclination to the horizontal, wherein a
  • Cleaning bar is arranged transversely to the bars and longitudinally on the bars can be moved resting and the cleaning bar is driven by at least one hydraulic cylinder via a path length translating device.
  • the required long movement of the cleaning strip over the longitudinal extension of the inlet rake can thus be achieved from the movement of the hydraulic cylinder, which enables a large force over a short distance.
  • the inlet rake with oriented in the flow direction bars.
  • the inlet rake can be arranged lying exactly horizontally or with a slope, in particular, a sloping slope in the flow direction, which advantageously supports the pushing down of the deposited bed of the inlet rake.
  • the inlet rake for example, before an existing threshold in the
  • Waters may be provided on a shaft, in the example of a
  • the inlet rake according to the invention is particularly suitable for serving as a cover of an inlet shaft provided essentially with a horizontal opening under water. It will
  • the hydraulic cylinder is a double-acting hydraulic cylinder or consists of a combination of two counter-rotating, single-acting cylinders.
  • a combination of two counter-rotating cylinders can be constructed so that the cylinders are arranged spatially separated.
  • Running rake is moved by the drive, it can be achieved by a synchronous control of the right and left side of a uniform and non-tilting movement of the cleaning strip.
  • right hydraulic cylinder and left hydraulic cylinder are each controlled via a proportional valve and each have a displacement measurement.
  • both hydraulic cylinders can be driven by a single hydraulic pump with little effort, to achieve a synchronous running and always right-angled, not tilting orientation of the cleaning strip, the two hydraulic cylinders are controlled separately.
  • the synchronous running is ensured by a measurement of the stroke of the respective hydraulic cylinder.
  • the measurement of the stroke is well known for hydraulic cylinders and can be done by any known method and technique, such as a
  • the right hydraulic cylinder and the left hydraulic cylinder each have an electric motor-hydraulic pump unit, in particular in a closed circuit, and in each case a displacement measurement.
  • the path length translating device consists of a with the
  • a pulley By a pulley can be achieved a multiple translation of the way. At the same time a high tensile force can be transmitted by a rope, such as when the rope is a suitably designed steel cable. In an alternative design can also by the hydraulic cylinder a
  • Coupling joint drive to be driven, which allows a corresponding translation of the lifting movement in a longer movement, approximately similar to a scissor lift in two levels.
  • the hydraulic cylinder is a
  • Synchronous cylinder whose piston rod is carried out on both sides, wherein in each case one block of the pulley of the respective cable ends is arranged at the ends of the piston rod.
  • a block is arranged with the required depending on the number of deflections of the pulley rollers at one end of the piston rod.
  • the associated rope end forms there with a second block, which is fixed in place, a pulley.
  • the other end of the rope forms with a likewise stationary block and a third, arranged at the other end of the piston rod block the second pulley.
  • the hydraulic cylinder is laterally au Shen arranged on a support plate below the bars.
  • the support plate may for example be oriented vertically and also anchor the stationary blocks.
  • the rope is guided over in the plane of the bars at the ends of the inlet rake in the longitudinal direction arranged deflection rollers in a space between two bars. Since in many cases, the cleaning strip has a comb-like structure, which engages to a certain depth in the spaces between the bars, in such, inevitably free of the movement length gap also a continuous rope over the length of the inlet rake are performed. This results in a cheaper, short lever arm for the introduction of force of the tensile force in the cleaning strip.
  • the bars are to
  • Flow direction of the water are oriented transversely and on one or both sides of the bars, a flushing trough is arranged.
  • the attachment is pushed laterally from the inlet rake in the flushing trough.
  • the flushing channel can be regulated, for example, by appropriate openings in a weir structure, or constantly be given an increased water flow, which carries the attachment on.
  • the arrangement of the bars transverse to the flow direction of the water and at least one flushing channel is independent of the nature of the drive of the cleaning strip. This arrangement can with any type of drive, even without a hydraulic cylinder or a
  • the flushing channel leads up to a flushing flap in a weir structure.
  • FIG. 1 Schematically illustrated embodiments illustrated embodiment of the entry rake according to the invention. This shows an inlet rake according to the invention with lateral hydraulic cylinder from the side,
  • FIG. 2 is a schematic representation of the inlet rake of FIG. 1 from above,
  • Fig. 3 is a schematic representation of the inlet rake of Fig. 1 in a further embodiment
  • Fig. 4 in a section of the cleaning strip of Fig. 3 in cross section.
  • Fig. 1 shows an inlet rake 1 according to the invention with a hydraulic cylinder 14, which is designed as a synchronizing cylinder 15.
  • the synchronizing cylinder 15 is fastened to a support 16 arranged in the middle in relation to the longitudinal extent of the inlet rake 1 on a vertically oriented support plate 17.
  • Piston rod 18 of the synchronizing cylinder 15 a first block 19 with rollers 20 of a first pulley 21 is arranged.
  • a second block 22 with rollers 20 of a second pulley 23 is arranged.
  • a cable 25 is guided with its one end.
  • the other end of the rope 25 is guided via a fourth block 26 with rollers 20 through the second pulley 23.
  • the rope 25 is over
  • Pulley 21 is contracted. Is in the illustration of FIG. 1, the
  • Piston rod 18 moves through the synchronizing cylinder 15 to the left, so shortens the second pulley 23 and extends the first pulley 21st Thereby, the cable 25 is moved over the pulleys 27 from left to right through the space between the bars 8 to the first pulley 21 and the
  • the inlet rake 1 serves as a cover over a shaft of a water inlet, which is not shown. This can be next to every conceivable one
  • Water inlet in particular be a shaft in which a turbine is located completely under water.
  • the water falls from the upper water through the inlet rake 1 down into the shaft, not shown.
  • FIG. 2 shows a schematic representation of the inlet rake 1 of FIG. 1 from above.
  • the inlet rake 1 sits on top of a shaft 2.
  • a dam board 4 is arranged, through which an opening 9 in a dam wall 10 can be opened or closed.
  • the water flows, as indicated by the dashed arrows, toward the opening 9 and falls through the inlet rake 1 in the shaft 2.
  • the bars 8 are arranged in the longitudinal direction of the flow.
  • the cleaning strip 6 is arranged in the rest position 7 at the upstream end of the inlet rake 1.
  • Quertragieri 1 1 are arranged, which connect the bars 8.
  • Further middle Quertragieri 12 are arranged halfway along the inlet rake.
  • the hydraulic cylinders 14 are arranged with the support plates 17 of FIG. 1, not shown here, each side of the inlet rake 1.
  • the cleaning strip 6 is pulled at both outer ends by the cable 25.
  • the movement of the two hydraulic cylinders 14 is synchronized and ensured that the cleaning strip 6 is not tilted and is moved at right angles to the bars 8 on the inlet rake 1.
  • the cleaning strip 6 is moved from the rest position 7 on the inlet rake 1 away in the direction of the opening 9.
  • the dam board 4 can be lowered so far that the opening 9 is completely open to support the cleaning effect and generating a strong flow.
  • Fig. 3 shows a schematic representation of the inlet rake of Fig. 1 in a further embodiment.
  • the components of the embodiment of FIG. 2 corresponding components are provided with the same reference numerals.
  • Run-in rake 1 sits on the top of the shaft 2, wherein the bars 8, in contrast to the embodiment of FIG. 1, are arranged transversely to a flow direction of the water indicated by dashed arrows.
  • a dam 30 is arranged as a weir structure 31.
  • Cleaning strip 6 is arranged in the rest position 7 at one end of the inlet rake 1.
  • the Quertragieri 1 1 are arranged, which connect the bars 8.
  • the other central transverse support elements 12 are arranged halfway along the inlet rake.
  • the hydraulic cylinders 14 are arranged with the support plates 17 of FIG. 1, not shown here, each side of the inlet rake 1. This will be the
  • a strong flow can be generated in the flushing channels 32, which conveys lying in the Spellerrinnen 32 attachment through the openings of the dishwashing 33 in the underwater.
  • the flushing channels 32 in this case have a brine which is lower than the upper edge of the inlet rake 1.
  • the cleaning strip 6 In order to convey bedding from the inlet rake 1 in the underwater and to clean the inlet rake 1, the cleaning strip 6 is moved from the rest position 7 on the inlet rake 1 across the entire inlet rake 1 back and forth. As a result, bedding is pushed by the inlet rake 1 in the Spülrinnen 32. By opening the flushing flaps 33, the bedload from the flushing channels 32 can be conveyed into the underwater by a strong flow.
  • the described embodiment of the arrangement of the inlet rake 1 and the cleaning strip 6 is basically completely independent of the type of operation of the cleaning strip 6. In particular, no hydraulic cylinder 14 and no wegenburgnGermanitatide device may be used. It is sufficient that a drive device for the cleaning strip 6 is provided, which can pull it over the length of the inlet rake 1 away in both directions. It can the Rest position be arranged on the edge of the inlet rake 1 or in the middle.
  • the cleaning strip 6 consists of a sheet-metal profile 35, the both sides of each a comb strip 36 with engaging in the gaps between the bars 8 teeth 37th having.
  • the teeth 37 engage in the gaps between the bars 8 at an angle, here, for example, of 45 °, with respect to the horizontal and facing out into it.
  • Cleaning bar 6 is lifted by the bars 8.
  • a driver 38 is arranged on the upper side of the sheet metal profile 35.
  • the sheet metal profile 35 rests with a continuous plastic plate 39 on the top of the bars 8, whereby the friction during the movement of the cleaning strip 6 is reduced.
  • Securing means 40 which engage in through free gaps between bars 8 through the inlet rake 1 and on the underside of the bars 8 abutting counter-holding plates 41, a lifting of the cleaning strip 6 is prevented and this held on the top of the bars 8.
  • the driver 38 may in a movement of the cleaning strip 6 on the

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

La présente invention concerne une grille d'entrée de centrale hydroélectrique, pourvue de barreaux (8) disposés dans la direction d'écoulement de l'eau horizontalement ou de manière légèrement inclinée par rapport à l'horizontale, ou pourvue de barreaux (8) orientés transversalement par rapport à la direction d'écoulement de l'eau, leurs arêtes supérieures se suivant, dans la direction d'écoulement, horizontalement ou avec une légère inclinaison par rapport à l'horizontale. Selon l'invention, une barre de nettoyage (6) est disposée transversalement par rapport aux barreaux (8) et peut être déplacée dans la direction longitudinale sur les barreaux (8), ladite barre de nettoyage (6) étant entraînée par au moins un vérin hydraulique (14), par l'intermédiaire d'un dispositif multiplicateur de course.
PCT/EP2013/052474 2012-02-08 2013-02-07 Grille d'entrée à barre de nettoyage WO2013117669A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112013000885.8T DE112013000885A5 (de) 2012-02-08 2013-02-07 Einlaufrechen mit Reinigungsleiste

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012101038 2012-02-08
DE102012101038.2 2012-02-08

Publications (1)

Publication Number Publication Date
WO2013117669A1 true WO2013117669A1 (fr) 2013-08-15

Family

ID=47710138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/052474 WO2013117669A1 (fr) 2012-02-08 2013-02-07 Grille d'entrée à barre de nettoyage

Country Status (2)

Country Link
DE (1) DE112013000885A5 (fr)
WO (1) WO2013117669A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850222A (zh) * 2014-02-21 2014-06-11 武汉圣禹排水系统有限公司 偏心底轴多级堰板
AT516765A3 (de) * 2015-01-29 2018-09-15 Gustav Barbueda Rechenanlage

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR550484A (fr) * 1922-04-18 1923-03-10 Grille à nettoyage et évacuation automatiques pour prise d'eau
GB480419A (en) * 1936-07-02 1938-02-22 Jones & Attwood Ltd Improvements in or relating to apparatus for straining liquids and comminuting solids in a flow of liquid
FR1165735A (fr) 1957-01-30 1958-10-28 Cie Ind De Travaux Et D Etudes Installation hydroélectrique à groupes turbo-alternateurs immergés
DE1127285B (de) 1959-12-04 1962-04-05 Charmilles Sa Ateliers Rechenreiniger
JPS6047882A (ja) 1983-08-26 1985-03-15 Masao Kinemura 河床下に設置して流水を利用する発電装置
GB2267446A (en) * 1992-06-01 1993-12-08 Hydro Int Ltd Bar screen
WO1998031882A1 (fr) * 1997-01-20 1998-07-23 Tj Brent Limited Grille a barreaux inclinee
WO2003013742A1 (fr) * 2001-08-07 2003-02-20 Power-Glides Screens Limited Systeme de degrillage de suspension
US20080314805A1 (en) * 2007-06-21 2008-12-25 Blue Whale Screen Co., Ltd. Structure for fixing screen bars of screening apparatus for wastewater treatment

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR550484A (fr) * 1922-04-18 1923-03-10 Grille à nettoyage et évacuation automatiques pour prise d'eau
GB480419A (en) * 1936-07-02 1938-02-22 Jones & Attwood Ltd Improvements in or relating to apparatus for straining liquids and comminuting solids in a flow of liquid
FR1165735A (fr) 1957-01-30 1958-10-28 Cie Ind De Travaux Et D Etudes Installation hydroélectrique à groupes turbo-alternateurs immergés
DE1127285B (de) 1959-12-04 1962-04-05 Charmilles Sa Ateliers Rechenreiniger
JPS6047882A (ja) 1983-08-26 1985-03-15 Masao Kinemura 河床下に設置して流水を利用する発電装置
GB2267446A (en) * 1992-06-01 1993-12-08 Hydro Int Ltd Bar screen
WO1998031882A1 (fr) * 1997-01-20 1998-07-23 Tj Brent Limited Grille a barreaux inclinee
WO2003013742A1 (fr) * 2001-08-07 2003-02-20 Power-Glides Screens Limited Systeme de degrillage de suspension
US20080314805A1 (en) * 2007-06-21 2008-12-25 Blue Whale Screen Co., Ltd. Structure for fixing screen bars of screening apparatus for wastewater treatment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103850222A (zh) * 2014-02-21 2014-06-11 武汉圣禹排水系统有限公司 偏心底轴多级堰板
AT516765A3 (de) * 2015-01-29 2018-09-15 Gustav Barbueda Rechenanlage
AT516765B1 (de) * 2015-01-29 2019-05-15 Gustav Barbueda Rechenanlage

Also Published As

Publication number Publication date
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