EP0627530B1 - Dispositif de contrÔle de débit - Google Patents

Dispositif de contrÔle de débit Download PDF

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Publication number
EP0627530B1
EP0627530B1 EP94107198A EP94107198A EP0627530B1 EP 0627530 B1 EP0627530 B1 EP 0627530B1 EP 94107198 A EP94107198 A EP 94107198A EP 94107198 A EP94107198 A EP 94107198A EP 0627530 B1 EP0627530 B1 EP 0627530B1
Authority
EP
European Patent Office
Prior art keywords
float
chamber
feed opening
shut
link
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.)
Expired - Lifetime
Application number
EP94107198A
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German (de)
English (en)
Other versions
EP0627530A1 (fr
Inventor
Werner Feucht
Hans-Dieter Löbig
Alexander Elsner
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.)
BGU Baugesellschaft fur Umweltschutzanlagen mbH
Original Assignee
BGU Baugesellschaft fur Umweltschutzanlagen mbH
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Filing date
Publication date
Application filed by BGU Baugesellschaft fur Umweltschutzanlagen mbH filed Critical BGU Baugesellschaft fur Umweltschutzanlagen mbH
Publication of EP0627530A1 publication Critical patent/EP0627530A1/fr
Application granted granted Critical
Publication of EP0627530B1 publication Critical patent/EP0627530B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/105—Accessories, e.g. flow regulators or cleaning devices
    • E03F5/107—Active flow control devices, i.e. moving during flow regulation

Definitions

  • the invention relates to a device for flow control in sewer systems, in particular for connection to the drain of a rain or mixed water basin, with a float chamber arranged between an inlet and an outlet connection with an enlarged cross-section, which has a chamber floor rising towards both side walls and one by means of parallel Contains a height-adjustable swivel handlebar on fixed bearings, from which a shut-off element assigned to the inlet opening can be adjusted by transmission means driven by the handlebar movement.
  • a regulator container is connected to the outflow of the storage basin, which contains opposing, floor-level inlet and outlet openings and a float.
  • the float With regard to its buoyancy movements, the float is guided by force arms acting laterally on it from two-arm parallel levers mounted on the container wall and arranged one above the other.
  • the load arms of the parallel levers are connected to a vertical guide linkage of a throttle plate which is inclined downwards in the direction of the inlet flow and which can be moved in front of the correspondingly inclined inlet opening.
  • the invention has for its object to design and improve a flow control device of the type specified in such a way that, while ensuring a simplified, robust structure with few moving components, a rapid response to changing inflows, accurate control of constant flow rates is made possible.
  • the device In operation of the device according to the invention, it is flowed through unhindered by smaller inlets which do not require regulation, for example by double dry weather drainage of a mixed water sewer system, due to the passage channel on the underside of the float, this flow including the coarse dirt present therein being discharged through the always open drain opening.
  • a build-up arises which raises the float from its basic position lying on the chamber floor and is transferred to the shut-off element in a regulating manner as a measure of the respective time flow rate through float buoyancy movement.
  • the transmission ratio between the movements of the float and the shut-off device can be chosen to be large, even small accumulation changes and float movements cause sufficiently large movements of the shut-off device to regulate the change in the feed cross-section, which results in a reliable response of the device to changed feed quantities.
  • the sensitivity of the response is improved without additional device outlay in that the handlebars mounted one behind the other above the float and in the direction of the flow run downward from their fixed bearings and the float suspended thereon from the additional impulsive force contained in the incident jet of an increased inflow to an over the handlebars are driven in an arcuate upward float movement and are thus supported in its buoyancy movement which is also beginning at this time.
  • the bottom of the float chamber is recessed in a channel shape from both sides up to the longitudinal center.
  • the trailing edge of the ramp can be arranged above the deepest point of the inlet opening or at the same height as the bottom of the inlet opening and connected to the channel shape of the chamber floor by means of a transition plate.
  • the cross section of the passage channel is partially reduced at least at one point by an aperture plate attached to the periphery of its hollow curvature.
  • the turbulence and the impulse force effect of the inlet flow deflected upwards on the ramp in the float chamber is also intensified in that the front wall of the float forms a recessed radiant sheet with an upper projecting area as splash water protection in the lower area.
  • the transmission means can have a movement damping member and a connecting member angularly attached to the handlebar, which is connected directly or indirectly to the shut-off device.
  • the extension and the connecting member are preferably connected to one another via a stiffening frame which is connected at one end to a handlebar above the fixed bearing and at the other end to the shut-off element, the stiffening frame carrying a length-adjustable weight at its end remote from the shut-off element to change the buoyancy of the float.
  • the fixed bearings of the handlebars and the transmission means are arranged or supported on a support frame which rests on the float chamber and can be pivoted up about a horizontal transverse axis on the rear wall of the chamber.
  • On the downstream Handlebars can be attached near the horizontal transverse axis of the support frame an effective balance weight with respect to the transmission means.
  • the shut-off element can be a segment plate which is adjustably fastened on a carrier plate containing vertical elongated holes.
  • the segment plate can be guided between vertical sealing plates arranged on both sides of the inlet opening in the float chamber, which are made of plastic or have a low-friction coating.
  • a sealing lip made of sheet steel or other hard-elastic material is arranged as the upper seal of the inlet opening between the side sealing plates, the free downward bent end of which rests under prestress on the segment plate and acts as a wiper when the segment plate is opened.
  • the control device comprises an elongated rectangular float chamber 10, on the front wall 12 and rear wall 14 of which an inlet pipe socket 16 or an outlet pipe socket 18 which is flush with the chamber bottom are fastened.
  • the float chamber 10 is about two to three times as wide as the diameter of the inlet pipe and about twice as long as its width.
  • the upper edges of the side walls of the float chamber, which is open at the top, are stabilized by angle profiles 50.
  • the chamber floor 30 is inclined downwards from both sides towards the longitudinal center and thus has a groove shape which can be seen in FIG. 5.
  • the inlet opening 20 adapted to the inlet pipe 16 in the front wall 12 is in the float chamber 10 through the channel-shaped Bottom 30, lateral sealing plates 72 and continued through an upper horizontal sealing wall 73 to an approximately square inlet cross-section, which can be changed continuously between a completely open and completely closed state by means of a curved segment plate 44 in the side view corresponding to FIG. 1.
  • a curved segment plate 44 For the lateral sealing of the segment plate 44, it is guided in a sealed manner between the sealing plates 72 which are made of plastic or are provided with a low-friction coating.
  • Attached to the upper sealing wall 73 is a sealing lip 74 made of sheet steel or other hard-elastic material, the free end of which is bent downward, bears against the segment plate 44 under pretension and acts as a wiper during opening movements.
  • a float 22 Arranged in the float chamber 10 is a float 22 which rises or falls in accordance with the accumulation generated by the time-varying inflow quantity, the extreme positions being shown in FIGS. 1 and 4, 5.
  • the float 22 is shorter than the chamber 10, has approximately the same width as this and is adapted to the chamber bottom 30 on its underside.
  • the float 22 is suspended with the aid of two consecutively arranged and mutually parallel links or pairs of links 26, 28, the lower ends of which are mounted on transverse axes 27, which are held in hanging tabs 24 extending from the top of the float.
  • the links 26, 28 consist of rectangular tubes running over the longitudinal center of the float, the upper ends of which can be pivoted about fixed bearings 32, 34.
  • the fixed bearings consist, as in the lower articulation points of the handlebars, of transverse axes held in an auxiliary frame 80.
  • the auxiliary frame 80 is arranged above the float chamber 10 and part of a support frame 88, which is supported on the upper side of the float chamber and described below, or is fixedly connected to it.
  • the links 26, 28 have in the lower end position of the float 22 one in the flow direction at about 45 ° to the vertical downward slope.
  • the downstream control arm 26 has a rectified upper tubular extension 36, the upper end of which is widened to one side is connected to a hydraulic damping member 66 mounted on the auxiliary frame 80, which is able to intercept or suppress control vibrations. From the upper extension 36 a connecting element 38 is attached, which extends at right angles and extends in the direction of a support device 40 for the segment plate 44.
  • the transmission means for the driving forces generated by the float movements to adjust the segment plate 44 comprise, in addition to the handlebar 26, its upper extension 36 and the connecting member 38 extending therefrom, a stiffening frame 86, for example rectangular in side view.
  • the stiffening frame 86 has the task of Intentionally simple design, above the longitudinal center of the float chamber 10, to secure the connection between the drive link 26 and the segment plate 44 by additional struts and to ensure a play-free transmission of the drive forces to the shut-off device.
  • the stiffening frame 86 can consist of a rectangular tube and, according to FIG.
  • the frame member 90 can consist of two flat steel bars running parallel to one another, which are firmly connected to the extension 36 and the connecting member 38 in the region of the crossing points, preferably by welding.
  • a set point adjuster 68 is attached at the top in the form of a weight 70 adjustable on a threaded rod 48, with which the characteristic curve for the segment plate actuated by the float can be changed sensitively to regulate different set flow rates.
  • the support device 40 attached to the upstream side of the stiffening frame 86 comprises two vertical tabs, which are attached on both sides to the lower end of the frame member 89 and extend from the rear of a curved support plate 42, which contains elongated holes for the height-adjustable screw fastening of the segment plate 44.
  • the adjustment movement of the segment plate 44 is a rotary movement around the fixed bearing 32 as the center of rotation.
  • the segment plate and the carrier plate have a curvature which is adapted to their swivel path.
  • the shape or extension length of the sealing plates 72 is adapted for the lateral guidance of the segment plate.
  • the lower edge of the segment plate 24 is matched to the contour of the bottom of the float chamber, which, in deviation from FIG. 5, can also be flat in the inlet area.
  • the passage channel 58 formed due to the hollow curvature in the bottom of the float, the cross section of which is enlarged downwards through the trough shape of the chamber bottom 30, serves for an unimpeded outflow of rain or mixed water as long as the outflow quantity does not need to be throttled, for example in the case of a mixed water sewerage system, twice the dry weather outflow quantity does not exceed. So that rising inlets at an increased speed do not escape through the passage channel 58, according to FIGS. 1 to 5, on the chamber floor 30, a ski jump 62 which is inclined upward or curved in the flow direction and ends in front of the float 22 and which can consist of a sheet metal and one of them increased longitudinal center parting from both sides to the chamber floor (Fig. 5).
  • the front wall 60 of the float 22 is designed as a radiant sheet 60 set back with an upper curvature, an upper projecting area 59 forming a splash water protection which is not shown by the Float baffles going forward can be expanded.
  • the beam plate 60 and its upper curvature receive impulse forces at higher inflows due to the flow deflected upward from the hill, which support the upward movement of the float.
  • the chamber floor is recessed behind the inlet opening 20 and approximately in its width with a gradual downward inclination, so that a depression 67 is formed in the side view.
  • the chamber floor merges into an upwardly curved ramp 61 which ends in front of the front wall / beam plate 60 of the float 22 and whose trailing edge lies at the same height as the deepest point of the inlet opening 20.
  • a transition plate 63 is provided, which adjoins the channel shape of the chamber bottom 30.
  • the chamber floor behind the inlet opening 20 is recessed approximately in its width with a gradual downward inclination, but the upward curved or inclined ramp 65 starting from the deepest point with its detaching edge above the lowest point of the Inlet opening 20 is located.
  • the trough-shaped depression 67 of the chamber bottom arranged in front of the ramp causes a certain acceleration, particularly with small inflows, with the effect that accumulations of dirt are avoided which are completely flushed out of the float chamber when the inflow increases later.
  • the lateral sealing plates 72 can be extended in the lower region to the detaching edge of the respective ramp.
  • the inner or subframe 80 carrying the fixed bearings 32, 34 of the handlebars is firmly connected to the supporting frame 88 by a strong connecting element 84 in the form of a square tube, so that all the forces acting on the fixed bearings are greater than that the support frame 88 resting on the float chamber 10 are removed.
  • the support frame 88 which consists of angle profiles, lies on top of the float chamber 10 and can be swiveled up about a horizontal transverse axis 82 on the chamber rear wall 14 into a maintenance position according to FIG. 3 which makes the float chamber accessible.
  • a conveniently accessible handle 46 is attached to the inner frame 80.
  • the support frame 88 In a sufficiently pivoted upward position, the support frame 88 is secured on the upper edge of the float chamber 10 by means of a support 76 articulated thereon.
  • a balance weight 78 is attached to the downstream link 26 near the horizontal transverse axis 82 of the support frame 88, which counterweight could in principle be replaced by a corresponding water filling of the float, but would then make the pivoting of the support frame 88 considerably more difficult.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Flow Control (AREA)
  • Float Valves (AREA)
  • Barrages (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Claims (14)

  1. Dispositif de réglage du débit de l'écoulement dans des canalisations, destiné en particulier à être raccordé au système d'écoulement d'un bassin d'eau pluviale ou d'un bassin à eaux mixtes, comprenant un compartiment pour flotteur (10) à section élargie, disposé entre une tubulure d'admission et une tubulure d'évacuation (16, 18), qui est muni d'un fond (30) remontant vers les deux parois latérales et contient un flotteur (22), dont la hauteur est réglable sur des paliers fixes (32, 34) par l'intermédiaire de bras oscillants parallèles (26, 28), qui permet de déterminer la position d'un organe d'obturation (44), adjoint à un orifice d'admission (20), par l'intermédiaire des organes de transmission actionnés par le mouvement des bras oscillants, caractérisé
    - en ce que le flotteur (22), dont la largeur est pratiquement identique à celle du compartiment pour flotteur (10), est muni d'une face inférieure adaptée au profil transversal du fond du compartiment (30), afin d'être posée sur ledit fond,
    - en ce que la face inférieure du flotteur (22) est bombée vers le haut, au-dessus du milieu du fond du compartiment, afin de former un canal de passage (58) destiné à de faibles adductions d'eau non régulées,
    - en ce que le fond du compartiment, derrière l'orifice d'admission (20), est creusé avec une pente descendante progressive pour former une cavité (67) et, à partir du point le plus bas, forme une déclivité (61 ; 65) en pente ascendante ou courbe, qui s'arrête devant le flotteur,
    - en ce que les paliers fixes (32, 34), au-dessus du flotteur (22), sont disposés l'un derrière l'autre dans le sens de l'écoulement et les bras oscillants parallèles (26, 28), à partir des paliers fixes, sont inclinés vers le bas dans le sens de l'écoulement, et
    - en ce que l'organe d'obturation (44) est raccordé, par l'intermédiaire des organes de transmission formant un assemblage rigide, à un élément de rallonge supérieur (36) du bras oscillant (26), situé le plus loin de l'orifice d'admission (20), et forme un coude, qui coïncide avec sa voie de déplacement autour du palier fixe (32) de ce bras oscillant (26).
  2. Dispositif selon la revendication 1, caractérisé en ce que le fond (30) du compartiment pour flotteur (10) est évidé en forme de goulotte, à partir de chaque côté jusqu'à la ligne longitudinale centrale.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'arête d'écoulement de la déclivité (65) est disposée au-dessus du point le plus profond de l'orifice d'admission (20).
  4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'arête d'écoulement de la déclivité (65) est située à même hauteur que le fond de l'orifice d'admission (20) et est raccordée par l'intermédiaire d'une plaque de raccordement métallique (63) au fond du compartiment en forme de goulotte.
  5. Dispositif selon la revendication 1, caractérisé en ce que la section transversale du canal de passage (58) est rétrécie partiellement au moins en un point par une plaque d'obturation métallique (59), montée sur la périphérie de sa courbure concave.
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi frontale du flotteur (22) forme dans la zone inférieure un déflecteur (60), décalé en arrière, muni d'une zone en saillie (59), destinée à protéger contre les projections d'eau.
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les organes de transmission sont munis, outre la pièce de rallonge supérieure (36) du bras oscillant (26) situé le plus loin de l'admission, d'un organe d'amortissement des mouvements (66) et d'une pièce de raccordement (38) fixée contre le bras oscillant en formant un angle droit, qui est directement ou indirectement raccordée à l'organe d'obturation.
  8. Dispositif selon la revendication 7, caractérisé en ce que la pièce de rallonge (36) et la pièce de raccordement (38) sont reliées l'une à l'autre par un cadre raidisseur (86), dont l'une des extrémités est raccordée à l'un des bras oscillants (26), au-dessus du palier fixe (32), et dont l'autre extrémité est reliée à l'organe d'obturation.
  9. Dispositif selon la revendication 8, caractérisé en ce que l'extrémité du cadre raidisseur (86) éloignée de l'organe d'obturation porte un poids (70), qui peut être déplacé dans le sens longitudinal, destiné à faire varier la force portante du flotteur (22).
  10. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les paliers fixes (32, 34) des bras oscillants (26, 28), ainsi que les organes de transmission sont disposés ou appuyés sur un cadre de support (88) posé sur le compartiment pour flotteur (10), qui peut pivoter vers le haut autour d'un pivot transversal horizontal (82), monté sur la paroi arrière (14) du compartiment pour flotteur.
  11. Dispositif selon la revendication 10, caractérisé en ce qu'un contrepoids d'équilibre (78), qui agit sur les organes de transmission, est monté sur le bras oscillant (26), situé en aval, à proximité du pivot transversal horizontal (82) du cadre de support (88).
  12. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'organe d'obturation forme une plaque en segment (44), qui est fixée de manière à pouvoir se déplacer sur une plaque de support (42) munie de trous allongés verticaux.
  13. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la plaque à segment (44) est guidée entre des plaques d'étanchéité (72) verticales, montées de part et d'autre de l'orifice d'admission (20) du compartiment pour flotteur, lesdites plaques d'étanchéité étant réalisées dans un matériau synthétique ou revêtues d'une couche à faible frottement.
  14. Dispositif selon la revendication 13, caractérisé en ce qu'une lèvre d'étanchéité (74), réalisée dans une tôle d'acier ou un autre matériau élastique ferme, est montée entre les plaques d'étanchéité latérales (72) pour former le système d'étanchéité supérieur de l'orifice d'admission (20), l'extrémité libre, coudée vers le bas, de ladite lèvre d'étanchéité s'appuyant contre la plaque à segment (44) sous l'effet d'une précontrainte et agissant comme un racloir pendant les mouvements d'ouverture de la plaque à segment.
EP94107198A 1993-05-11 1994-05-09 Dispositif de contrÔle de débit Expired - Lifetime EP0627530B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4315693 1993-05-11
DE4315693A DE4315693A1 (de) 1993-05-11 1993-05-11 Abflußmengenregelung

Publications (2)

Publication Number Publication Date
EP0627530A1 EP0627530A1 (fr) 1994-12-07
EP0627530B1 true EP0627530B1 (fr) 1997-03-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94107198A Expired - Lifetime EP0627530B1 (fr) 1993-05-11 1994-05-09 Dispositif de contrÔle de débit

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EP (1) EP0627530B1 (fr)
AT (1) ATE150827T1 (fr)
DE (2) DE4315693A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006026632A1 (de) * 2006-06-08 2007-12-13 Kolb, Frank R., Dr. Ing. Einleiteinrichtung für Speicherbecken

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845086A1 (de) * 1978-10-17 1980-04-30 Glahn Hanns Ing Grad Stauablaufregler fuer fluessigkeiten nach dem parallelhebelverfahren
DE3124132C2 (de) * 1981-06-19 1983-07-07 Hansjörg Dr.-Ing. 6990 Bad Mergentheim Brombach Vorrichtung zur Zuflußsteuerung
DE3931562A1 (de) * 1989-09-22 1991-04-04 Karl Kraus Strahl-drossel
DE4016376C2 (de) * 1990-05-21 1994-01-27 Karl Kraus Abflußregelung für Regenspeicherbecken

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Publication number Publication date
EP0627530A1 (fr) 1994-12-07
DE4315693A1 (de) 1994-11-17
DE59402196D1 (de) 1997-04-30
ATE150827T1 (de) 1997-04-15

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