EP1715965B1 - Pivoting jet cleaner with an external-power-free pivoting drive - Google Patents
Pivoting jet cleaner with an external-power-free pivoting drive Download PDFInfo
- Publication number
- EP1715965B1 EP1715965B1 EP05707333.0A EP05707333A EP1715965B1 EP 1715965 B1 EP1715965 B1 EP 1715965B1 EP 05707333 A EP05707333 A EP 05707333A EP 1715965 B1 EP1715965 B1 EP 1715965B1
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- EP
- European Patent Office
- Prior art keywords
- jet
- jet pipes
- liquid
- axis
- pivoting
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
- B08B9/0933—Removing sludge or the like from tank bottoms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
- B01F25/212—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being movable, e.g. rotating
- B01F25/2121—Pivoting or oscillating in a multidirectional way during jetting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
- B01F25/212—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being movable, e.g. rotating
- B01F25/2122—Rotating during jetting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- 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
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
Definitions
- the blast cleaners can be subdivided into “fixed” (0 °), “panning” (smaller 360 °) or “rotating” (360 °) types ( Handbook for the equipment of rain basins, Oskar Vollmar GmbH, Stuttgart, self publishing, 1992 ).
- Strahhlick with a fixed jet pipe are mainly used in rectangular tanks or small round pools up to about 20 m in diameter for cleaning.
- a cleaning of the pelvic floor with built-in structures, such. B. concrete columns, is due to the "flow shadow" only insufficient or not possible.
- the number of required for cleaning jet cleaner increases significantly, as they can clean only a small area due to the fixed beam angle. This leads to significant capital and operating costs due to the considerable energy consumption of these systems.
- Swirl jet cleaners can be used in all memory space geometries.
- the jet pipe is rotated by a separate electric drive and covers approximately a range of 300 °. Due to the changing rotational movements of the jet pipe can be cleaned here in particular also memory spaces, the fixtures, z. B. support columns for a building overlap own.
- the pivoting movement causes the deposits to be washed away behind the internals and almost completely resuspended in the body of water.
- Schwenkstrahtrillian an ejector through the ambient air is sucked in. By coalescing the air bubbles and temporarily lowering the average density, mixing zones are created in the area of the jet cleaner, which sustainably improve resuspension of the coarse materials.
- the rotating blast cleaners are predominantly used in round basins, which should be designed without any built-in components, because due to the fixed direction of rotation "flow shadows" form. There are deposits in the flow shadows that can not be removed with this type of cleaner.
- the rotation of the jet cleaner is predominantly hydraulic in that by a partial water flow flowing through an injection nozzle, a torque is generated. An additional air interference to improve the cleaning effect is not provided in this jet cleaner type.
- jet cleaners For the main application for cleaning floors and walls of storage rooms, the use of jet cleaners is preferable to other cleaning options due to their mode of operation and the technical versions.
- the jet cleaners are particularly suitable for complete tank cleaning, as they can be used independently of the tank geometry.
- the swivel jet cleaner consist i. a. a support frame, an actuator, at least one jet pipe and a submersible motor pump which generates the cleaning jet.
- the rotary linkage with the motors have been arranged either above the water level, which is possible at pelvic depths of several meters only with a high design effort, or below the water level, the safe operation of the electrical Grenznapsgeber in solids-rich wastewater in aggressive ambient atmosphere problematic is.
- the rotary drive of the jet pipe was realized by nozzles through which a partial water flow is conducted and a torque is generated according to the principle of the backflow (see DE 42 21 374 A1 ).
- the jet pipe consists of two sections, the one section being provided for the pool cleaning and the other period with a smaller pipe diameter extending the axis of rotation and directed obliquely outwards or to the tank sole.
- the tube is tapered so far that it forms a nozzle from which emerges at a high speed a Wassererteilstrorn for the rotational movement.
- a reversal of rotation is not provided in this construction, so that only a rotational and not a pivoting movement can be achieved.
- the DE 87 16 405 U1 proposes an oscillating liquid spray nozzle for a high pressure cleaner.
- a nozzle housing an outlet nozzle is pivotally mounted, wherein the nozzle head is formed with a cylindrical head surface on which the nozzle head slides against a cylindrical bearing surface of the nozzle housing.
- the elongate nozzle head acts as a double-acting piston, which is pivotally moved within the nozzle housing and at the lateral piston surfaces by means of a change mechanism from one or the other side a higher water pressure is applied. The pressure difference of the water pressure, which rests on both side surfaces leads to pivoting.
- the interchangeable mechanism is formed by a displaceable within the piston and extending between the two side surfaces of the control piston, which, depending on the end position, the water from one or the other side into the nozzle head, whereby on this side a lower pressure is applied.
- the switching of the switching piston is made on adjustable pins against which the control piston rests in the desired end position within the nozzle housing and thereby shifts the control piston in its other end position, which reverses the pivoting movement of the nozzle head. By pivoting the jet direction of the nozzle head is changed.
- a nozzle head is arranged at a free end of a hose piece.
- the length of hose is clamped at the end opposite the nozzle head so that the length of hose within a fan-shaped guide can move in a plane between two stops for the nozzle head.
- the piece of tubing is pivoted back and forth due to the recoil between the end positions.
- the solution shown in patent claim 1 has the advantage that the energy of the liquid jet is used in two ways and used on the one hand for the cleaning of the storage container and on the other hand used for pivoting the device.
- the torque required for pivoting is due to the arrangement of the outlet opening of the jet pipes outside the axis of rotation, which leads to a change in the impulse force of the liquid jet during the flow.
- the device is provided with a switching device which causes the periodic deflection of the liquid jet about the axis of rotation of the device by an angle ⁇ . This eliminates the disadvantages of additional electrical and / or hydraulic drives for pivoting jet cleaners and that of rotating blast cleaners that can only rotate in one direction.
- pan jet cleaners require a switching device in order to periodically reverse their direction of rotation
- the ends of the jet pipes are provided in the flow direction with an eccentric constriction. Due to the eccentricity of the constriction, the internal forces, ie the momentum forces, of the liquid jet are changed, thereby producing a torque at the end of the respectively throughflowed jet pipe.
- An advantageous switching device wastes a pinhole.
- the pinhole consists of a plate with an opening, which releases only one of the jet pipes to flow through.
- the pinhole is driven by the rotational movement against a stop with a cam and the aperture moved so far that the other jet can be acted upon with water.
- the rotation takes place in the opposite direction.
- the function of the switching device can be advantageously achieved by a movable flap.
- the flap is mounted within a housing in front of the jet pipes on a rotation axis and can be switched around this axis by means of a plunger. Upon reaching the respective end position of the plunger switches the flap in the opposite position.
- the axis of rotation of the device is taken directly by the pressure generator, here a pump.
- the pump is mounted without additional brackets and housing on a turntable, for example, a camp Includes roles. This makes it possible to dispense with an expensive storage of the jet pipes for the rotational movement and the life of the rotating device can be increased.
- the bearing forces generated by the device can be adjusted by the choice of the diameter of the turntable advantageously to the load capacity of the materials used.
- the pressure generator due to structural conditions of the storage container can not be attached directly to the jet pipes, it can also be a standpipe for liquid supply and used as a rotation axis for the device.
- the turntable is in this case advantageously designed so that the deflection of the liquid from the horizontal to the vertical direction within the ring, for example, by a fixed to the lower part of the turntable elbow.
- the elbow can be performed, for example, without seal to the standpipe, so that exits through the gap between elbow and standpipe so long liquid until the turntable is completely filled with liquid. This liquid then takes over the function of the sealing element.
- the jet pipes can be angled in the region of the liquid outlet at an angle ⁇ from its center axis. By bending the lever arm for the torque to pivot the device relative to its axis of rotation is increased.
- the switching device is realized by valves.
- the advantage of this design is that stops are no longer necessary for switching the direction of rotation, but for example, the valves can be switched over a time control.
- the time control can be variably designed and changed via a telecontrol connection from a central location. This makes it possible to freely select the pivot range of the device from about 0 to 360 °.
- the jet cleaner can be used independently of the storage tank geometry.
- a swivel range of 380 ° is required to get a full. to achieve constant cleaning of the pelvic floor.
- the required swivel range is between 0 and 5 ° for complete cleaning.
- blast cleaners are used in the cleaning of storage containers for the food industry, in particular for fruit juice production, these liquids have a high acid, phosphate and nitrate content. These ingredients have a high corrosive effect against metallic materials, from this Reason should all wetted parts of the cleaning device be made of plastic.
- swivel-type jet cleaners are used in the cleaning of storage tanks for municipal wastewater treatment, it makes sense to manufacture all liquid-contacting parts made of stainless steel.
- Stainless steel has the advantage over other low-alloyed steels that the material thicknesses can be made smaller while maintaining the same corrosion resistance, thereby achieving a lower weight of the device. Due to this causality, smaller torques are necessary for pivoting and the expenditure on equipment is reduced, as a result of which the device can be produced more cost-effectively.
- FIGS. 4, 5 . 7, and 8 are for illustration and are not the subject of the claims.
- FIG. 1 shows an embodiment of the device mentioned in the claims, which is referred to below as external energy-free swing jet cleaner.
- the liquid supply 5 is centrally z. B. via a standpipe.
- the liquid is pressed by a pump through the housing 4 of the switching device, here a pinhole 3, on the jet pipe 1.
- the second jet pipe 2 is not flowed through with the liquid.
- the section clearly shows the eccentric arrangement of the outlet opening of the jet pipe, which leads to a torque by the change of the pulse forces of the water jet.
- FIG. 2 shows the flanging of the jet pipes 1 and 2 with the switching device, here a pinhole 3, to a pump 10 which is mounted on a turntable 11.
- the direct arrangement of the pump on the turntable eliminates additional brackets and housing.
- the slewing ring absorbs all static and dynamic forces. Over its diameter, which can be performed up to the jet pipe ends, the forces on the actual bearing parts can be minimized.
- FIG. 3 shows a similar arrangement as FIG. 2 , but with a standpipe 12 as a holder for the pivoting unit.
- the turntable is adapted with its execution to the inclusion of the liquid supply line 14 and the liquid deflector 13.
- a 90 ° deflection arc can be used, whose vertical axis is centered with the axis of the standpipe. A seal between the arc and the standpipe does not occur, so that the lower turntable is filled with liquid and thus increases the stability and allows the abrasive-free deflection of the liquid flow.
- FIG. 4 shows the invention with only one jet pipe 18 and a switching linkage 20 which is connected via bolts 22 with the pinhole 19, the jet pipe 18 and the jet pipe extension 15.
- pinhole and beam tube extension recesses 17 are provided in the Umschaltgestnature 20.
- the pinhole displaces, as it encounters a stop, the linkage over the central pin 22, so that the jet tube extension assumes the position 16 and thereby the direction of rotation was reversed.
- FIG. 5 shows a similar arrangement as the FIG. 4
- the switching of the jet pipe 23 is effected by two auxiliary nozzles 26, of which only one through the pinhole 24 is traversed with liquid. Due to the geometric Dimensions of this arrangement can be used for liquids with low coarse content.
- the torque for the rotary jet cleaner can be achieved with an angled jet pipe design as in FIG. 6 be shown increased.
- the jet pipes 28 and 29 should be arranged vertically, so that the bending can be carried out according to the respective requirements.
- the liquid distribution casing 61 has two jet pipe outlets.
- the device has only one jet tube 60, which is changed between the two outlets by a tilting mechanism 59 with a tilting axis 58.
- the tilting mechanism is provided with two plates 56, which close the outlet of the housing, which is not connected to the jet pipe.
- the liquid supply 69 is connected to the jet pipe 67 via a bearing 63.
- the side of the liquid supply is connected to a fixed stop 64, the upper reaches the camp up to the upper stop 65 on the jet pipe.
- the jet pipe has an eccentric constriction, which can be rotated with the jet pipe by the switching lever 66 by 180 °. The rotation is limited by the lower stop 68, wherein after the rotation of the jet pipe has reached the position 62.
- FIG. 9 shows in the upper diagram a possible electrical control 31 of the switching device using a pinhole.
- the pinhole 32 should be made, for example, of a magnetic material that can be switched by the electromagnets 35.
- FIG. 9 shows in the middle representation, a hydraulic control 37, with the hydraulic lines 39, the two pistons 38 are driven to switch the pinhole.
- the lower illustration in FIG. 9 shows a mechanical control consisting of two stop posts 40 and one stop cam 41 with spring. During the pivoting operation, one of the two stop cams is contacted by the perforated plate 32 and, due to the inertia, the perforated diaphragm in the housing 33 is moved in such a way that water flows through the other jet tube.
- FIG. 10 the switching device is shown with two valves 42, which are switched by a controller 44 via a pull magnet 43 from left to right pivoting and vice versa.
- the switching device consists of a vertically movable flap 52, which is switched over the axis of rotation 51 with an outer plunger 54.
- the plunger is guided outside over the brackets 55 and fixed in its horizontal direction of movement.
- the plunger is connected to two strips 53, between which the flap is guided and at the same time the displacement within the flap is sealed.
- FIG. 12 a possible variant for an automatic gas entry into the liquid stream.
- the variant consists of an inner liquid cladding tube, which is provided with openings.
- the outer sheath 46 is connected directly to the gas pipe 47 and this with the ambient atmosphere. Due to the static pressure reduction in the tapered part of the inner cladding tube, gas can be forced into the liquid through the gas tube and the surrounding outer cladding tube.
- the inner cladding tube in contrast to the prior art in Schwenk-Strahlreinigem, made in one piece. This design and the shape of the apertures can be used to disperse any small gas bubbles in the liquid. This is particularly advantageous if not only a cleaning of a container, but also for prolonged stowage of the container should be aeration of the liquid.
- FIG. 13 is a similar design as in FIG. 12 illustrated, however, the jet pipes 48 were additionally provided with sealing flaps 49 which are rotatably mounted on a pin 50. When flowing through a jet pipe, this flap opens and through the gas pipe 47 gas can be pressed into the liquid. The non-perfused jet pipe is closed by the sealing flap 49 and the pinhole 3 of the surrounding liquid. As a result, no pressure equalization between the two jet pipes and the gas pipe take place, so that a liquid injection into the through-flow jet pipe is possible only with a gas pipe.
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Description
Für die Sohlreinigung von Speicherräumen für Flüssigkeiten, insbesondere für Mischwasser, wie z. B. RÜB, Stauraumkanäle, RRB usw., werden neben den schwallerzeugenden Einrichtungen, wie z. B. Spülkippen, Klappen- und Vakuumspülungen, auch verwirbelnde Einrichtungen, wie z. B. Rührwerke und Strahlreiniger eingesetzt (
Unter den verwirbelnden Einrichtungen können die Strahlreiniger je nach Ausführung in "feste" (0°), "schwenkende" (kleiner 360°) oder "rotierende" (360°) Typen unterteilt werden (
Strahheiniger mit einem festen Strahlrohr werden überwiegend in Rechteckbecken oder in kleinen Rundbecken bis etwa 20 m Durchmesser zur Reinigung eingesetzt. Eine Reinigung der Beckensohle mit Bauwerkseinbauten, wie z. B. Betonstützen, ist aufgrund des "Strömungsschattens" nur unzureichend oder nicht möglich. Bei größeren Bauwerken erhöht sich die Anzahl der zur Reinigung benötigten Strahlreiniger erheblich, da sie bedingt durch den festen Strahlwinkel nur eine kleine Fläche abreinigen können. Dies führt zu erheblichen Investitions- und Betriebskosten aufgrund des erheblichen Energieverbrauchs dieser Systeme.Strahheiniger with a fixed jet pipe are mainly used in rectangular tanks or small round pools up to about 20 m in diameter for cleaning. A cleaning of the pelvic floor with built-in structures, such. B. concrete columns, is due to the "flow shadow" only insufficient or not possible. For larger structures, the number of required for cleaning jet cleaner increases significantly, as they can clean only a small area due to the fixed beam angle. This leads to significant capital and operating costs due to the considerable energy consumption of these systems.
Schwenkstrahlreiniger können in allen Speicherraumgeometrien eingesetzt werden. Das Strahlrohr wird durch einen separaten elektrischen Antrieb gedreht und überstreicht etwa einen Bereich von 300°. Durch die wechselnden Drehbewegungen des Strahlrohres können hier im besonderen auch Speicherräume gereinigt werden, die Einbauten, z. B. Tragsäulen für eine Bauwerksüberdeckung, besitzen. Die schwenkende Bewegung bewirkt, dass die Ablagerungen hinter den Einbauten weggespült und im Wasserkörper fast vollständig resuspendiert werden. Zur Verbesserung der Reinigungs- und Resuspendierungswirkung besitzen Schwenkstrahtreiniger eine Ejektordüse, durch die Umgebungsluft angesaugt wird. Durch das Koaleszieren der Luftblasen und die temporäre Erniedrigung der mittleren Dichte werden Mischzonen im Bereich des Strahlreinigers erzeugt, die eine Resuspendierung der Grobstoffe nachhaltig verbessern.Swirl jet cleaners can be used in all memory space geometries. The jet pipe is rotated by a separate electric drive and covers approximately a range of 300 °. Due to the changing rotational movements of the jet pipe can be cleaned here in particular also memory spaces, the fixtures, z. B. support columns for a building overlap own. The pivoting movement causes the deposits to be washed away behind the internals and almost completely resuspended in the body of water. To improve the cleaning and resuspension effect have Schwenkstrahtreiniger an ejector, through the ambient air is sucked in. By coalescing the air bubbles and temporarily lowering the average density, mixing zones are created in the area of the jet cleaner, which sustainably improve resuspension of the coarse materials.
Die rotierenden Strahlreiniger werden überwiegend in Rundbecken eingesetzt, die ohne Einbauten ausgeführt werden sollten, da sich aufgrund der festen Drehrichtung "Strömungsschatten" ausbilden. In den Strömungsschatten kommt es zu Ablagerungen, die mit diesem Reinigertyp nicht beseitigt werden können. Die Rotation der Strahlreiniger erfolgt überwiegend auf hydraulischem Wege, indem durch einen Teilwasserstrom, der durch eine Injektionsdüse fließt, ein Drehmoment erzeugt wird. Eine zusätzliche Lufteinmischung zur Verbesserung der Reinigungswirkung ist bei diesem Strahlreinigertyp nicht vorgesehen.The rotating blast cleaners are predominantly used in round basins, which should be designed without any built-in components, because due to the fixed direction of rotation "flow shadows" form. There are deposits in the flow shadows that can not be removed with this type of cleaner. The rotation of the jet cleaner is predominantly hydraulic in that by a partial water flow flowing through an injection nozzle, a torque is generated. An additional air interference to improve the cleaning effect is not provided in this jet cleaner type.
Für die hauptsächliche Anwendung zur Sohl- und Wandreinigung von Speicherräumen ist der Einsatz von Strahlreinigern aufgrund ihres Wirkungsprinzip und der technischen Ausführungen gegenüber anderen Reinigungsvarianten vorzuziehen. Bei den Strahlreinigern eignen sich im besonderen Maße die Schwenkstrahlreiniger für eine vollständige Beckenreinigung, da sie unabhängig von der Beckengeometrie einsetzbar sind. Die Schwenkstrahlreiniger bestehen i. a. aus einem Trägergestell, einem Stellantrieb, mindestens einem Strahlrohr und einer Tauchmotorpumpe, die den Reinigungsstrahl erzeugt.For the main application for cleaning floors and walls of storage rooms, the use of jet cleaners is preferable to other cleaning options due to their mode of operation and the technical versions. The jet cleaners are particularly suitable for complete tank cleaning, as they can be used independently of the tank geometry. The swivel jet cleaner consist i. a. a support frame, an actuator, at least one jet pipe and a submersible motor pump which generates the cleaning jet.
Für die Beckenreinigung mittels Strahlreiniger werden überwiegend die Varianten eingesetzt, die in den deutschen Schutzschriften
Ein weiterer Nachteil dieser Konstruktion besteht darin, dass die Schwenklager durch das Gewicht des Strahlrohres einem dynamischen Kippmoment ausgesetzt werden, welches aufgrund der geringen Auflagerfläche nach einigen hundert Betriebsstunden zur Zerstörung des Lagers führt. Die Temperatureinflüsse führen anschließend zu einem Auslaufen des Schmiermittels und damit zum Verklemmen der beiden Lagerschalen.Another disadvantage of this construction is that the pivot bearings are subjected to a dynamic overturning moment due to the weight of the jet tube. which leads to the destruction of the bearing after a few hundred operating hours due to the small bearing surface. The temperature influences then lead to leakage of the lubricant and thus to jamming of the two bearing shells.
Um die Schwenkung des Strahlrohres durchzuführen, sind alle Strahlreiniger mit einem elektrischen Verstellmechanismus versehen. Im Bereich des Abwassers stellt die Steuerung des Schwenkantriebes einen weiteren wesentlichen Nachteil dar. Dieser wird entweder durch einen Drehwinkelgeber im Gehäuse der überflutbaren Haube oder durch elektrische Sensoren im Bereich des Abwassers durchgeführt. Beide Varianten führen durch die Grobstoffe im Abwasser häufig zu Problemen beim Betrieb der Reiniger.In order to perform the pivoting of the jet pipe, all jet cleaners are provided with an electrical adjustment mechanism. In the field of wastewater, the control of the rotary actuator represents a further significant disadvantage. This is carried out either by a rotary encoder in the housing of the floodable hood or by electrical sensors in the region of the wastewater. Both variants often lead to problems in the operation of the cleaner due to the coarse substances in the wastewater.
Bei dem Einsatz von rotierenden Strahlreinigern wurde der Rotationsantrieb des Strahlrohres durch Düsen realisiert, durch die ein Teilwasserstrom geleitet und nach dem Rückstossprinzip ein Drehmoment erzeugt wird (siehe
Die
Bei der Reinigungsvorrichtung der
Es ist Aufgabe der Erfindung, eine Behälter-Reinigungsvorrichtung mit einfachem Aufbau vorzusehen.It is an object of the invention to provide a container cleaning device with a simple structure.
Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand von Unteransprüchen.This object is achieved with the features of
Die in PATENTANSPRUCH 1 dargestellte Lösung hat den Vorteil, dass die Energie des Flüssigkeitsstrahls in zweifacher Weise genutzt und zum einen für die Reinigung des Speicherbehälters eingesetzt und zum anderen zum Schwenken der Einrichtung verwendet wird. Das zum Schwenken erforderliche Drehmoment wird durch die Anordnung der Austritts Öffnung der Strahlrohre außerhalb der Drehachse , die zu einer Veränderung der Impulskraft des Flüssigkeitsstrahls während des Durchströmens führt. Zur Änderung der Schwenkrichtung ist die Einrichtung mit einer Umschaltvorrichtung versehen, welche die periodische Ablenkung des Flüssigkeitsstrahls um die Drehachse der Einrichtung um einen Winkel α bewirkt. Dadurch werden die Nachteile von zusätzlichen elektrischen und / oder hydraulischen Antrieben zum Schwenken von Strahlreinigern und die von rotierenden Srahlreinigern, die nur in eine Richtung drehen können, beseitigt. Das Drehmoment und durch die Anordnung der Strahlrohre hervorgerufen, indem sie in gleicher Richtung jeweils außerhalb der Drehachse angeordnet sind. Beim Durchströmen eines der Strahlrohre wird aufgrund des vorhandenen Hebelarms ℓ um die Schwenkachse ein Drehmoment an dessen Austrittsöffnung durch den Flüssigkeitsstrom erzeugt.The solution shown in
Im Gegensatz zu rotierenden Strahlreinigern benötigen Schwenk-Strahlreiniger eine Umschaltvorrichtung, um ihre Drehrichtung periodisch umkehren zu könnenIn contrast to rotating jet cleaners, pan jet cleaners require a switching device in order to periodically reverse their direction of rotation
Bei einer vorteilhaften Ausführung zur Erzeugung des Drehmoments sind die Enden der Strahlrohre in Strömungsrichtung mit einer exzentrischen Verengung versehen sind. Durch die Exzentrizität der Verengung werden die inneren Kräfte, also die Impulskräfte, des Flüssigkeitsstrahls verändert und dadurch am Ende des jeweils durchströmten Strahlrohres ein Drehmoment erzeugt.In an advantageous embodiment for generating the torque, the ends of the jet pipes are provided in the flow direction with an eccentric constriction. Due to the eccentricity of the constriction, the internal forces, ie the momentum forces, of the liquid jet are changed, thereby producing a torque at the end of the respectively throughflowed jet pipe.
Eine vorteilhafte Umschaltvorrichtung wast eine Lochblende auf . Die Lochblende besteht aus einer Platte mit einer Öffnung, die nur jeweils eines der Strahlrohre zur Durchströmung freigibt. Am Ende des eingestellten Schwenkbereiches, der von 0° bis 360° verlaufen kann, wird die Lochblende durch die Drehbewegung gegen einen Anschlag mit einer Nocke gefahren und die Blende soweit bewegt, bis dass das andere Strahlrohr mit Wasser beaufschlagt werden kann. Dadurch erfolgt die Drehung in die entgegengesetzte Richtung. Durch diesen Aufbau sind keine Steuerung (elektrisch, hydraulisch) und auch keine Grenzkontakte in einer feststoffbeladenen Flüssigkeit, wie beispielsweise Abwasser, notwendig.An advantageous switching device wastes a pinhole. The pinhole consists of a plate with an opening, which releases only one of the jet pipes to flow through. At the end of the set swivel range, which can run from 0 ° to 360 °, the pinhole is driven by the rotational movement against a stop with a cam and the aperture moved so far that the other jet can be acted upon with water. As a result, the rotation takes place in the opposite direction. By this structure, no control (electric, hydraulic) and no limit contacts in a solids-laden liquid, such as wastewater, necessary.
Die Funktion der Umschalteinrichtung kann vorteilhafterweise auch durch eine bewegliche Klappe erzielt werden. Die Klappe ist innerhalb eines Gehäuses vor den Strahlrohren an einer Drehachse befestigt und kann um diese Achse mit Hilfe eines Stößels umgeschaltet werden. Beim Erreichen der jeweiligen Endposition schaltet der Stößel die Klappe in die jeweils entgegengesetzte Stellung um.The function of the switching device can be advantageously achieved by a movable flap. The flap is mounted within a housing in front of the jet pipes on a rotation axis and can be switched around this axis by means of a plunger. Upon reaching the respective end position of the plunger switches the flap in the opposite position.
Vorteilhaft wird die Drehachse der Einrichtung direkt durch den Druckerzeuger, hier eine Pumpe, übernommen. Die Pumpe wird ohne zusätzliche Halterungen und Gehäuse auf einem Drehkranz befestigt, der beispielsweise ein Lager aus Rollen beinhaltet. Dadurch kann auf eine aufwendige Lagerung der Strahlrohre für die Drehbewegung verzichtet und die Lebensdauer der Dreheinrichtung erhöht werden. Die Lagerkräfte, die durch die Einrichtung erzeugt werden, können über die Wahl des Durchmessers des Drehkranzes vorteilhafterweise an die Belastbarkeit der verwendeten Materialien angepasst werden.Advantageously, the axis of rotation of the device is taken directly by the pressure generator, here a pump. The pump is mounted without additional brackets and housing on a turntable, for example, a camp Includes roles. This makes it possible to dispense with an expensive storage of the jet pipes for the rotational movement and the life of the rotating device can be increased. The bearing forces generated by the device can be adjusted by the choice of the diameter of the turntable advantageously to the load capacity of the materials used.
Falls der Druckerzeuger wegen baulicher Gegebenheiten des Speicherbehälters nicht direkt an den Strahlrohren befestigt werden kann, so kann auch ein Standrohr zur Flüssigkeitsversorgung und als Drehachse für die Einrichtung verwendet werden. Der Drehkranz ist in diesem Fall vorteilhafterweise so ausgeführt, dass die Umlenkung der Flüssigkeit von der horizontalen zur vertikalen Richtung innerhalb des Kranzes beispielsweise durch ein am Unterteil des Drehkranzes befestigtes Bogenstück erfolgt. Das Bogenstück kann beispielsweise ohne Dichtung zum Standrohr ausgeführt werden, so dass durch den Spalt zwischen Bogenstück und Standrohr so lange Flüssigkeit austritt, bis der Drehkranz vollständig mit Flüssigkeit gefüllt ist. Diese Flüssigkeit übernimmt anschließend die Funktion des Dichtelementes.If the pressure generator due to structural conditions of the storage container can not be attached directly to the jet pipes, it can also be a standpipe for liquid supply and used as a rotation axis for the device. The turntable is in this case advantageously designed so that the deflection of the liquid from the horizontal to the vertical direction within the ring, for example, by a fixed to the lower part of the turntable elbow. The elbow can be performed, for example, without seal to the standpipe, so that exits through the gap between elbow and standpipe so long liquid until the turntable is completely filled with liquid. This liquid then takes over the function of the sealing element.
Um die Druckverluste des Druckerzeugers und damit die zur Reinigung der Speicherbehälter benötigte Energie zu minimieren, können die Strahlrohre im Bereich des Flüssigkeitsaustritts unter einem Winkel α von ihrer Zentrumsachse abgewinkelt werden. Durch die Abwinkelung wird der Hebelarm für das Drehmoment zum Schwenken der Einrichtung gegenüber deren Drehachse vergrößert.In order to minimize the pressure losses of the pressure generator and thus the energy required for cleaning the storage tank, the jet pipes can be angled in the region of the liquid outlet at an angle α from its center axis. By bending the lever arm for the torque to pivot the device relative to its axis of rotation is increased.
In einer Ausgestaltung wird die Umschalteinrichtung durch Ventile realisiert. Der Vorteil dieser Ausführung besteht darin, dass keine Anschläge mehr für die Umschaltung der Drehrichtung notwendig sind, sondern beispielsweise über eine Zeitsteuerung die Ventile umgeschaltet werden können. Die Zeitsteuerung kann variabel gestaltet und über eine fernwirktechnische Anbindung von einer zentralen Stelle verändert werden. Dadurch ist es möglich, den Schwenkbereich der- Einrichtung frei von etwa 0 bis 360° zu wählen.In one embodiment, the switching device is realized by valves. The advantage of this design is that stops are no longer necessary for switching the direction of rotation, but for example, the valves can be switched over a time control. The time control can be variably designed and changed via a telecontrol connection from a central location. This makes it possible to freely select the pivot range of the device from about 0 to 360 °.
Mit einem Schwenkbereich von 0 bis 360 ° kann der Strahlreiniger unabhängig von der Speicherbehältergeometrie eingesetzt werden. Für Rundbecken ist ein Schwenkbereich von 380° erforderlich, um eine voll. ständige Reinigung des Beckenbodens zu erzielen. Bei kleinen Rundbecken bis etwa 15 m Durchmesser und tangetialem Einlauf sowie bei Stauraumkanälen liegt der erforderliche Schwenkbereich zwischen 0 bis 5 ° zur vollständigen Reinigung.With a swivel range of 0 to 360 °, the jet cleaner can be used independently of the storage tank geometry. For round tanks, a swivel range of 380 ° is required to get a full. to achieve constant cleaning of the pelvic floor. For small round pools up to about 15 m in diameter and tangetial inlet and for storage space channels, the required swivel range is between 0 and 5 ° for complete cleaning.
Werden die Strahlreiniger bei der Reinigung von Speicherbehältern für die Lebensmittelindustrie eingesetzt, hier im besonderen für die Fruchtsaftherstellung, haben diese Flüssigkeiten einen hohen Säure-, Phosphat- und Nitrat-Gehalt. Diese Inhaltsstoffe haben eine hohe korrosive Wirkung gegenüber metallischen Werkstoffen, aus diesem Grund sollten alle flüssigkeitsberührenden Teile der Reinigungs-Einrichtung aus Kunststoff gefertigt sein.If the blast cleaners are used in the cleaning of storage containers for the food industry, in particular for fruit juice production, these liquids have a high acid, phosphate and nitrate content. These ingredients have a high corrosive effect against metallic materials, from this Reason should all wetted parts of the cleaning device be made of plastic.
Werden Schwenk-Strahlreiniger bei der Reinigung von Speicherbehältern für die kommunale Abwasserreinigung eingesetzt, so ist eine Herstellung aller flüssigkeitsberührenden Teile aus Edelstahl sinnvoll. Edelstahl hat gegenüber anderen niedtiglegierten Stählen den Vorteil, dass die Materialstärken bei gleicher Korrosionsfestigkeit geringer ausgeführt werden können und dadurch ein niedrigeres Gewicht der Einrichtung erzielt wird. Aufgrund dieser Kausalität sind kleinere Drehmomente zum Schwenken notwendig und der apparative Aufwand wird geringer, dadurch kann die Einrichtung kostengünstiger hergestellt werden.If swivel-type jet cleaners are used in the cleaning of storage tanks for municipal wastewater treatment, it makes sense to manufacture all liquid-contacting parts made of stainless steel. Stainless steel has the advantage over other low-alloyed steels that the material thicknesses can be made smaller while maintaining the same corrosion resistance, thereby achieving a lower weight of the device. Due to this causality, smaller torques are necessary for pivoting and the expenditure on equipment is reduced, as a result of which the device can be produced more cost-effectively.
Im folgenden wird die Erfindung anhand von zeichnerischen Darstellungen erläutert. Es zeigen:
-
Figur 1 - Prinzipdarstellung der Einrichtung, im weiteren als fremdenergiefreier Schwenk-Strahlreiniger bezeichnet, mit Schwenkbereich und Anschlägen (Draufsicht /Schnitt)
-
Figur 2 - Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers angeflanscht an eine Pumpe (Draufsicht / Seitenansicht)
-
Figur 3 - Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers angeflanscht an ein Standrohr (Draufsicht / Seitenansicht)
-
Figur 4 - Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers in der Draufsicht mit mechanischem Umschaltgestänge
-
Figur 5 - Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers mit zusätzlichen hydraulischen Schwenkdüsen (Draufsicht, Schnitte)
- Figur 6
- Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers in der Draufsicht mit abgewinkelter Strahlrohrverlängerung
- Figur 7
- Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers mit einem kippenden Strahlrohr (Draufsicht, Vorderansicht)
- Figur 8
- Prinzipdarstellurig eines fremdenergiefreien Schwenk-Strahlreinigers mit einem rotierenden Strahlrohr (Draufsicht, Vorderansicht)
- Figur 9
- Prinzipdarstellung der Steuerung der Umschalteinrichtung, hier als Lochblende ausgeführt, zur Umschaltung der Schwenkrichtung (Teilschnitte)
-
Figur 10 - Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers in der Draufsicht mit einer Umschaltvorrichtung, die aus zwei Ventilen zur Umschaltung der Schwenkrichtung besteht
-
Figur 11 - Prinzipdarstellung der Umschaltvorrichtung, die als bewegliches Element eine Klappe zur Umschaltung der Schwenkrichtung hat (Drauf- und Seitenansicht)
-
Figur 12 - Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers in der Draufsicht mit Gaseintragsrohr für jedes Strahlrohr
-
Figur 13 - Prinzipdarstellung eines fremdenergiefreien Schwenk-Strahlreinigers in der Draufsicht mit einem gemeinsamen Gaseintragsrohr
- FIG. 1
- Schematic representation of the device, hereinafter referred to as external energy-free swing jet cleaner, with swivel range and stops (top view / section)
- FIG. 2
- Schematic diagram of a power-free pan-jet cleaner flanged to a pump (top view / side view)
- FIG. 3
- Schematic representation of a third-party energy-free swing jet cleaner flanged to a standpipe (top view / side view)
- FIG. 4
- Schematic representation of a foreign energy-free swing jet cleaner in plan view with mechanical switching linkage
- FIG. 5
- Schematic representation of an external energy-free swivel-jet cleaner with additional hydraulic swivel nozzles (top view, sections)
- FIG. 6
- Schematic representation of a foreign energy-free swing-jet cleaner in plan view with angled beam pipe extension
- FIG. 7
- Schematic representation of a foreign energy-free swivel-jet cleaner with a tilting jet pipe (top view, front view)
- FIG. 8
- Prinzipdarstellurig a foreign energy-free swivel-jet cleaner with a rotating jet pipe (top view, front view)
- FIG. 9
- Schematic representation of the control of the switching device, designed here as a pinhole, for switching the pivoting direction (partial cuts)
- FIG. 10
- Schematic representation of a foreign energy-free swing-jet cleaner in plan view with a switching device consisting of two valves for switching the pivoting direction
- FIG. 11
- Schematic representation of the switching device, which has as a movable element a flap for switching the pivoting direction (top and side view)
- FIG. 12
- Schematic representation of a foreign energy-free swing jet cleaner in plan view with gas inlet tube for each jet pipe
- FIG. 13
- Schematic representation of a foreign energy-free swing jet cleaner in plan view with a common gas inlet tube
Die
Die
Die
Die
Bei kleinen Behältervolumina und kurzen Strahlrohren kann das Drehmoment für den Schwenk-Strahlreiniger durch eine abgewinkelte Strahlrohr-Ausführung wie in
In
In
Die
In
In
Zur Verbesserung der Resuspendierung zeigt die
In
Claims (12)
- Reservoir cleaning device for cleaning a reservoir serving for receiving liquids, for example storage basin and storage sewers for the rainwater treatment,
wherein the device comprises a pressure generator (10) disposed within or outside of the reservoir,
characterized in
that the reservoir cleaning device comprises two horizontally extending jet pipes (1,2, 28) supported pivotably around a vertical axis,
that the reservoir cleaning device comprises means for supplying the liquid conveyed by the pressure generator (10) to one of the two jet pipes (1, 2, 28),
that the exit openings of the two jet pipes (1, 2; 28) are disposed eccentrically to the vertical axis such that if one of the two jet pipes is flown through by liquid, a torque for pivoting the device is generated, and
that the rotational direction of the jet pipes around the vertical axis is reversible by means of a switching device (3, 4, 33, 35/38/41; 52, 54). - Device according to claim 1, wherein the pressure generator is a pump (10) mounted on a rotating ring (11), wherein the two jet pipes (1, 2) are flanged to the pump via the switching device and wherein the vertical pivot axis is provided by the rotating ring (11).
- Device according to claim 1, wherein a standpipe (12) is supported on a rotating ring, wherein the two jet pipes (1, 2) are fixedly connected to the standpipe via the switching device, and wherein the vertical pivot axis is centric with the axis of the standpipe.
- Device according to claim 1, characterized in that the jet pipes (1, 2; 28) are configured such that an eccentric restriction is disposed at the end thereof in flow direction, which generates a variation of the pulse force of the entire liquid jet and thereby a torque during flow through one of the jet pipes.
- Device according to any one or more of the preceding claims, characterized in that the switching device (3, 4; 33, 35/38/41) comprises a movable aperture plate (3, 19, 32), which respectively unblocks only one jet pipe (1, 2; 28) for the flow-through of the liquid, and thereby the rotational direction of the pivoting range of the device is set.
- Device according to any one of claims 1 to 5, characterized in that the switching device (52, 54) comprises a flap (52) disposed movable around a rotation axis, which can be internally or externally adjusted and respectively unblocks only one jet pipe for the flow-through of the liquid.
- Device according to claim 2, characterized in that the pump (10) is connected to the rotating ring (11) at its suction-side end such that the pump rotates with the jet pipes around the vertical pivot axis upon flow through one of the jet pipes.
- Device according to claim 3, characterized in that the standpipe (12) is connected to the rotating ring at its suction-side end such that the standpipe rotates with the jet pipes around the vertical pivot axis upon flow through one of the jet pipes.
- Device according to any one or more of the preceding claims, characterized in that the two jet pipes (28) are disposed vertically one above the other and a tapering of the jet pipe ends oppositely deviates from the horizontal axis direction thereof at an angle a.
- Device according to any one or more of the preceding claims, characterized in that the function of the switching device is accomplished by at least one switching valve or two individual valves with a mechanic, electric or hydraulic control or the combination thereof.
- Device according to any one or more of the preceding claims, characterized in that the jet pipes (1, 2; 28) are pivoted around the vertical pivot axis from 0 to 360°.
- Device according to any one or more of the preceding claims, characterized in that all of the liquid contacting parts are made of plastic or of stainless steel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004008859A DE102004008859A1 (en) | 2004-02-20 | 2004-02-20 | Cleaning device for e.g. rainwater run=off equalizing tanks in sewers, rotated using force of liquid flowing through spray pipe |
PCT/EP2005/001387 WO2005084834A1 (en) | 2004-02-20 | 2005-02-11 | Pivoting jet cleaner with an external-power-free pivoting drive |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1715965A1 EP1715965A1 (en) | 2006-11-02 |
EP1715965B1 true EP1715965B1 (en) | 2013-06-26 |
Family
ID=34832993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05707333.0A Not-in-force EP1715965B1 (en) | 2004-02-20 | 2005-02-11 | Pivoting jet cleaner with an external-power-free pivoting drive |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1715965B1 (en) |
DE (1) | DE102004008859A1 (en) |
WO (1) | WO2005084834A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE530570E (en) | 2006-11-16 | 2016-03-29 | Scanjet Marine Ab | Device for cleaning closed spaces |
CN113695130B (en) * | 2021-09-02 | 2022-09-30 | 广东鹏港建筑科技股份有限公司 | Look for slope section bar board surface spraying device |
CN113898060B (en) * | 2021-12-09 | 2022-03-01 | 北京清源华建环境科技有限公司 | Regulation pond of function sprayer is washed to rain sewage deposit thing is equipped with |
CN114287818A (en) * | 2021-12-20 | 2022-04-08 | 深圳金诚卫浴有限公司 | Multifunctional outdoor massage bathtub ozone sterilizer |
CN116747723B (en) * | 2023-08-23 | 2023-10-20 | 河北迅清生物科技有限公司 | CIP (cleaning in place) mixing cleaning system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3700055A1 (en) * | 1987-01-02 | 1988-07-14 | Vollmar Oskar Gmbh | Process and apparatus for the jet cleaning of a stormwater tank |
DK528887A (en) * | 1987-10-09 | 1989-04-10 | Westergaard Knud E Ind As | Oscillating Fluid Spray Nozzle |
DE3907740A1 (en) * | 1989-03-10 | 1990-09-20 | Kraenzle Josef | Cleaning device |
DE4221374C2 (en) * | 1992-07-01 | 2002-04-11 | Bruno Bachhofer | Rain basin cleaning device |
-
2004
- 2004-02-20 DE DE102004008859A patent/DE102004008859A1/en not_active Withdrawn
-
2005
- 2005-02-11 WO PCT/EP2005/001387 patent/WO2005084834A1/en not_active Application Discontinuation
- 2005-02-11 EP EP05707333.0A patent/EP1715965B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1715965A1 (en) | 2006-11-02 |
WO2005084834A1 (en) | 2005-09-15 |
DE102004008859A1 (en) | 2005-09-08 |
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